Initial QSfera import

This commit is contained in:
Курнат Андрей
2026-06-07 10:20:04 +03:00
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*~
*.test
validator
golangci-lint
functional_tests
.idea
vendor/
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CLAUDE.md
=========
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Commands
--------
### Testing
```bash
# Run all tests with race detection (requires MinIO server at localhost:9000)
SERVER_ENDPOINT=localhost:9000 ACCESS_KEY=minioadmin SECRET_KEY=minioadmin ENABLE_HTTPS=1 MINT_MODE=full go test -race -v ./...
# Run tests without race detection
go test ./...
# Run short tests only (no functional tests)
go test -short -race ./...
# Run functional tests
go build -race functional_tests.go
SERVER_ENDPOINT=localhost:9000 ACCESS_KEY=minioadmin SECRET_KEY=minioadmin ENABLE_HTTPS=1 MINT_MODE=full ./functional_tests
# Run functional tests without TLS
SERVER_ENDPOINT=localhost:9000 ACCESS_KEY=minioadmin SECRET_KEY=minioadmin ENABLE_HTTPS=0 MINT_MODE=full ./functional_tests
```
### Linting and Code Quality
```bash
# Run all checks (lint, test, examples, functional tests)
make checks
# Run linter only (includes govet, staticcheck, and other linters)
make lint
# Run golangci-lint directly
golangci-lint run --timeout=5m --config ./.golangci.yml
# Note: 'make vet' is now an alias for 'make lint' for backwards compatibility
```
### Building Examples
```bash
# Build all examples
make examples
# Build a specific example
cd examples/s3 && go build -mod=mod putobject.go
```
Architecture
------------
### Core Client Structure
The MinIO Go SDK is organized around a central `Client` struct (api.go:52) that implements Amazon S3 compatible methods. Key architectural patterns:
1. **Modular API Organization**: API methods are split into logical files:
- `api-bucket-*.go`: Bucket operations (lifecycle, encryption, versioning, etc.)
- `api-object-*.go`: Object operations (legal hold, retention, tagging, etc.)
- `api-get-*.go`, `api-put-*.go`: GET and PUT operations
- `api-list.go`: Listing operations
- `api-stat.go`: Status/info operations
2. **Credential Management**: The `pkg/credentials/` package provides various credential providers:
- Static credentials
- Environment variables (AWS/MinIO)
- IAM roles
- STS (Security Token Service) variants
- File-based credentials
- Chain provider for fallback mechanisms
3. **Request Signing**: The `pkg/signer/` package handles AWS signature versions:
- V2 signatures (legacy)
- V4 signatures (standard)
- Streaming signatures for large uploads
4. **Transport Layer**: Custom HTTP transport with:
- Retry logic with configurable max retries
- Health status monitoring
- Tracing support via httptrace
- Bucket location caching (`bucketLocCache`\)
- Session caching for credentials
5. **Helper Packages**:
- `pkg/encrypt/`: Server-side encryption utilities
- `pkg/notification/`: Event notification handling
- `pkg/policy/`: Bucket policy management
- `pkg/lifecycle/`: Object lifecycle rules
- `pkg/tags/`: Object and bucket tagging
- `pkg/s3utils/`: S3 utility functions
- `pkg/kvcache/`: Key-value caching
- `pkg/singleflight/`: Deduplication of concurrent requests
### Testing Strategy
- Unit tests alongside implementation files (`*_test.go`\)
- Comprehensive functional tests in `functional_tests.go` requiring a live MinIO server
- Example programs in `examples/` directory demonstrating API usage
- Build tag `//go:build mint` for integration tests
### Error Handling
- Custom error types in `api-error-response.go`
- HTTP status code mapping
- Retry logic for transient failures
- Detailed error context preservation
Important Patterns
------------------
1. **Context Usage**: All API methods accept `context.Context` for cancellation and timeout control
2. **Options Pattern**: Methods use Options structs for optional parameters (e.g., `PutObjectOptions`, `GetObjectOptions`\)
3. **Streaming Support**: Large file operations use io.Reader/Writer interfaces for memory efficiency
4. **Bucket Lookup Types**: Supports both path-style and virtual-host-style S3 URLs
5. **MD5/SHA256 Hashing**: Configurable hash functions for integrity checks via `md5Hasher` and `sha256Hasher`
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minio-go.min.io
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### Developer Guidelines
`minio-go` welcomes your contribution. To make the process as seamless as possible, we ask for the following:
- Go ahead and fork the project and make your changes. We encourage pull requests to discuss code changes.
- Fork it
- Create your feature branch (git checkout -b my-new-feature)
- Commit your changes (git commit -am 'Add some feature')
- Push to the branch (git push origin my-new-feature)
- Create new Pull Request
- When you're ready to create a pull request, be sure to:
- Have test cases for the new code. If you have questions about how to do it, please ask in your pull request.
- Run `go fmt`
- Squash your commits into a single commit. `git rebase -i`. It's okay to force update your pull request.
- Make sure `go test -race ./...` and `go build` completes. NOTE: go test runs functional tests and requires you to have a AWS S3 account. Set them as environment variables`ACCESS_KEY` and `SECRET_KEY`. To run shorter version of the tests please use `go test -short -race ./...`
- Read [Effective Go](https://github.com/golang/go/wiki/CodeReviewComments) article from Golang project
- `minio-go` project is strictly conformant with Golang style
- if you happen to observe offending code, please feel free to send a pull request
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For maintainers only
====================
Responsibilities
----------------
Please go through this link [Maintainer Responsibility](https://gist.github.com/abperiasamy/f4d9b31d3186bbd26522)
### Making new releases
Tag and sign your release commit, additionally this step requires you to have access to MinIO's trusted private key.
```sh
$ export GNUPGHOME=/media/${USER}/minio/trusted
$ git tag -s 4.0.0
$ git push
$ git push --tags
```
### Update version
Once release has been made update `libraryVersion` constant in `api.go` to next to be released version.
```sh
$ grep libraryVersion api.go
libraryVersion = "4.0.1"
```
Commit your changes
```
$ git commit -a -m "Update version for next release" --author "MinIO Trusted <trusted@min.io>"
```
### Announce
Announce new release by adding release notes at https://github.com/minio/minio-go/releases from `trusted@min.io` account. Release notes requires two sections `highlights` and `changelog`. Highlights is a bulleted list of salient features in this release and Changelog contains list of all commits since the last release.
To generate `changelog`
```sh
$ git log --no-color --pretty=format:'-%d %s (%cr) <%an>' <last_release_tag>..<latest_release_tag>
```
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GOPATH := $(shell go env GOPATH)
TMPDIR := $(shell mktemp -d)
all: checks
.PHONY: examples docs
checks: lint test examples functional-test
lint:
@mkdir -p ${GOPATH}/bin
@echo "Installing golangci-lint" && curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin
@echo "Running $@ check"
@GO111MODULE=on ${GOPATH}/bin/golangci-lint cache clean
@GO111MODULE=on ${GOPATH}/bin/golangci-lint run --timeout=5m --config ./.golangci.yml
vet: lint
test:
@GO111MODULE=on SERVER_ENDPOINT=localhost:9000 ACCESS_KEY=minioadmin SECRET_KEY=minioadmin ENABLE_HTTPS=1 MINT_MODE=full go test -race -v ./...
examples:
@echo "Building s3 examples"
@cd ./examples/s3 && $(foreach v,$(wildcard examples/s3/*.go),go build -mod=mod -o ${TMPDIR}/$(basename $(v)) $(notdir $(v)) || exit 1;)
@echo "Building minio examples"
@cd ./examples/minio && $(foreach v,$(wildcard examples/minio/*.go),go build -mod=mod -o ${TMPDIR}/$(basename $(v)) $(notdir $(v)) || exit 1;)
functional-test:
@GO111MODULE=on go build -race functional_tests.go
@SERVER_ENDPOINT=localhost:9000 ACCESS_KEY=minioadmin SECRET_KEY=minioadmin ENABLE_HTTPS=1 MINT_MODE=full ./functional_tests
functional-test-notls:
@GO111MODULE=on go build -race functional_tests.go
@SERVER_ENDPOINT=localhost:9000 ACCESS_KEY=minioadmin SECRET_KEY=minioadmin ENABLE_HTTPS=0 MINT_MODE=full ./functional_tests
clean:
@echo "Cleaning up all the generated files"
@find . -name '*.test' | xargs rm -fv
@find . -name '*~' | xargs rm -fv
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MinIO Cloud Storage, (C) 2014-2020 MinIO, Inc.
This product includes software developed at MinIO, Inc.
(https://min.io/).
The MinIO project contains unmodified/modified subcomponents too with
separate copyright notices and license terms. Your use of the source
code for these subcomponents is subject to the terms and conditions
of Apache License Version 2.0
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MinIO Go Client SDK for Amazon S3 Compatible Cloud Storage [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![Sourcegraph](https://sourcegraph.com/github.com/minio/minio-go/-/badge.svg)](https://sourcegraph.com/github.com/minio/minio-go?badge) [![Apache V2 License](https://img.shields.io/badge/license-Apache%20V2-blue.svg)](https://github.com/minio/minio-go/blob/master/LICENSE)
==================================================================================================================================================================================================================================================================================================================================================================================================================
The MinIO Go Client SDK provides straightforward APIs to access any Amazon S3 compatible object storage.
This Quickstart Guide covers how to install the MinIO client SDK, connect to MinIO, and create a sample file uploader. For a complete list of APIs and examples, see the [godoc documentation](https://pkg.go.dev/github.com/minio/minio-go/v7) or [Go Client API Reference](https://min.io/docs/minio/linux/developers/go/API.html).
These examples presume a working [Go development environment](https://golang.org/doc/install) and the [MinIO `mc` command line tool](https://min.io/docs/minio/linux/reference/minio-mc.html).
Download from Github
--------------------
From your project directory:
```sh
go get github.com/minio/minio-go/v7
```
Initialize a MinIO Client Object
--------------------------------
The MinIO client requires the following parameters to connect to an Amazon S3 compatible object storage:
| Parameter | Description |
|-------------------|------------------------------------------------------------|
| `endpoint` | URL to object storage service. |
| `_minio.Options_` | All the options such as credentials, custom transport etc. |
```go
package main
import (
"log"
"github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
)
func main() {
endpoint := "play.min.io"
accessKeyID := "Q3AM3UQ867SPQQA43P2F"
secretAccessKey := "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG"
useSSL := true
// Initialize minio client object.
minioClient, err := minio.New(endpoint, &minio.Options{
Creds: credentials.NewStaticV4(accessKeyID, secretAccessKey, ""),
Secure: useSSL,
})
if err != nil {
log.Fatalln(err)
}
log.Printf("%#v\n", minioClient) // minioClient is now set up
}
```
Example - File Uploader
-----------------------
This sample code connects to an object storage server, creates a bucket, and uploads a file to the bucket. It uses the MinIO `play` server, a public MinIO cluster located at [https://play.min.io](https://play.min.io).
The `play` server runs the latest stable version of MinIO and may be used for testing and development. The access credentials shown in this example are open to the public and all data uploaded to `play` should be considered public and non-protected.
### FileUploader.go
This example does the following:
- Connects to the MinIO `play` server using the provided credentials.
- Creates a bucket named `testbucket`.
- Uploads a file named `testdata` from `/tmp`.
- Verifies the file was created using `mc ls`.
```go
// FileUploader.go MinIO example
package main
import (
"context"
"log"
"github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
)
func main() {
ctx := context.Background()
endpoint := "play.min.io"
accessKeyID := "Q3AM3UQ867SPQQA43P2F"
secretAccessKey := "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG"
useSSL := true
// Initialize minio client object.
minioClient, err := minio.New(endpoint, &minio.Options{
Creds: credentials.NewStaticV4(accessKeyID, secretAccessKey, ""),
Secure: useSSL,
})
if err != nil {
log.Fatalln(err)
}
// Make a new bucket called testbucket.
bucketName := "testbucket"
location := "us-east-1"
err = minioClient.MakeBucket(ctx, bucketName, minio.MakeBucketOptions{Region: location})
if err != nil {
// Check to see if we already own this bucket (which happens if you run this twice)
exists, errBucketExists := minioClient.BucketExists(ctx, bucketName)
if errBucketExists == nil && exists {
log.Printf("We already own %s\n", bucketName)
} else {
log.Fatalln(err)
}
} else {
log.Printf("Successfully created %s\n", bucketName)
}
// Upload the test file
// Change the value of filePath if the file is in another location
objectName := "testdata"
filePath := "/tmp/testdata"
contentType := "application/octet-stream"
// Upload the test file with FPutObject
info, err := minioClient.FPutObject(ctx, bucketName, objectName, filePath, minio.PutObjectOptions{ContentType: contentType})
if err != nil {
log.Fatalln(err)
}
log.Printf("Successfully uploaded %s of size %d\n", objectName, info.Size)
}
```
**1. Create a test file containing data:**
You can do this with `dd` on Linux or macOS systems:
```sh
dd if=/dev/urandom of=/tmp/testdata bs=2048 count=10
```
or `fsutil` on Windows:
```sh
fsutil file createnew "C:\Users\<username>\Desktop\sample.txt" 20480
```
**2. Run FileUploader with the following commands:**
```sh
go mod init example/FileUploader
go get github.com/minio/minio-go/v7
go get github.com/minio/minio-go/v7/pkg/credentials
go run FileUploader.go
```
The output resembles the following:
```sh
2023/11/01 14:27:55 Successfully created testbucket
2023/11/01 14:27:55 Successfully uploaded testdata of size 20480
```
**3. Verify the Uploaded File With `mc ls`:**
```sh
mc ls play/testbucket
[2023-11-01 14:27:55 UTC] 20KiB STANDARD TestDataFile
```
API Reference
-------------
The full API Reference is available here.
- [Complete API Reference](https://min.io/docs/minio/linux/developers/go/API.html)
### API Reference : Bucket Operations
- [`MakeBucket`](https://min.io/docs/minio/linux/developers/go/API.html#MakeBucket)
- [`ListBuckets`](https://min.io/docs/minio/linux/developers/go/API.html#ListBuckets)
- [`BucketExists`](https://min.io/docs/minio/linux/developers/go/API.html#BucketExists)
- [`RemoveBucket`](https://min.io/docs/minio/linux/developers/go/API.html#RemoveBucket)
- [`ListObjects`](https://min.io/docs/minio/linux/developers/go/API.html#ListObjects)
- [`ListIncompleteUploads`](https://min.io/docs/minio/linux/developers/go/API.html#ListIncompleteUploads)
### API Reference : Bucket policy Operations
- [`SetBucketPolicy`](https://min.io/docs/minio/linux/developers/go/API.html#SetBucketPolicy)
- [`GetBucketPolicy`](https://min.io/docs/minio/linux/developers/go/API.html#GetBucketPolicy)
### API Reference : Bucket notification Operations
- [`SetBucketNotification`](https://min.io/docs/minio/linux/developers/go/API.html#SetBucketNotification)
- [`GetBucketNotification`](https://min.io/docs/minio/linux/developers/go/API.html#GetBucketNotification)
- [`RemoveAllBucketNotification`](https://min.io/docs/minio/linux/developers/go/API.html#RemoveAllBucketNotification)
- [`ListenBucketNotification`](https://min.io/docs/minio/linux/developers/go/API.html#ListenBucketNotification) (MinIO Extension)
- [`ListenNotification`](https://min.io/docs/minio/linux/developers/go/API.html#ListenNotification) (MinIO Extension)
### API Reference : File Object Operations
- [`FPutObject`](https://min.io/docs/minio/linux/developers/go/API.html#FPutObject)
- [`FGetObject`](https://min.io/docs/minio/linux/developers/go/API.html#FGetObject)
### API Reference : Object Operations
- [`GetObject`](https://min.io/docs/minio/linux/developers/go/API.html#GetObject)
- [`PutObject`](https://min.io/docs/minio/linux/developers/go/API.html#PutObject)
- [`PutObjectStreaming`](https://min.io/docs/minio/linux/developers/go/API.html#PutObjectStreaming)
- [`StatObject`](https://min.io/docs/minio/linux/developers/go/API.html#StatObject)
- [`CopyObject`](https://min.io/docs/minio/linux/developers/go/API.html#CopyObject)
- [`RemoveObject`](https://min.io/docs/minio/linux/developers/go/API.html#RemoveObject)
- [`RemoveObjects`](https://min.io/docs/minio/linux/developers/go/API.html#RemoveObjects)
- [`RemoveIncompleteUpload`](https://min.io/docs/minio/linux/developers/go/API.html#RemoveIncompleteUpload)
- [`SelectObjectContent`](https://min.io/docs/minio/linux/developers/go/API.html#SelectObjectContent)
### API Reference : Presigned Operations
- [`PresignedGetObject`](https://min.io/docs/minio/linux/developers/go/API.html#PresignedGetObject)
- [`PresignedPutObject`](https://min.io/docs/minio/linux/developers/go/API.html#PresignedPutObject)
- [`PresignedHeadObject`](https://min.io/docs/minio/linux/developers/go/API.html#PresignedHeadObject)
- [`PresignedPostPolicy`](https://min.io/docs/minio/linux/developers/go/API.html#PresignedPostPolicy)
### API Reference : Client custom settings
- [`SetAppInfo`](https://min.io/docs/minio/linux/developers/go/API.html#SetAppInfo)
- [`TraceOn`](https://min.io/docs/minio/linux/developers/go/API.html#TraceOn)
- [`TraceOff`](https://min.io/docs/minio/linux/developers/go/API.html#TraceOff)
Full Examples
-------------
### Full Examples : Bucket Operations
- [makebucket.go](https://github.com/minio/minio-go/blob/master/examples/s3/makebucket.go)
- [listbuckets.go](https://github.com/minio/minio-go/blob/master/examples/s3/listbuckets.go)
- [bucketexists.go](https://github.com/minio/minio-go/blob/master/examples/s3/bucketexists.go)
- [removebucket.go](https://github.com/minio/minio-go/blob/master/examples/s3/removebucket.go)
- [listobjects.go](https://github.com/minio/minio-go/blob/master/examples/s3/listobjects.go)
- [listobjectsV2.go](https://github.com/minio/minio-go/blob/master/examples/s3/listobjectsV2.go)
- [listincompleteuploads.go](https://github.com/minio/minio-go/blob/master/examples/s3/listincompleteuploads.go)
### Full Examples : Bucket policy Operations
- [setbucketpolicy.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketpolicy.go)
- [getbucketpolicy.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketpolicy.go)
- [listbucketpolicies.go](https://github.com/minio/minio-go/blob/master/examples/s3/listbucketpolicies.go)
### Full Examples : Bucket lifecycle Operations
- [setbucketlifecycle.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketlifecycle.go)
- [getbucketlifecycle.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketlifecycle.go)
### Full Examples : Bucket encryption Operations
- [setbucketencryption.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketencryption.go)
- [getbucketencryption.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketencryption.go)
- [removebucketencryption.go](https://github.com/minio/minio-go/blob/master/examples/s3/removebucketencryption.go)
### Full Examples : Bucket replication Operations
- [setbucketreplication.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketreplication.go)
- [getbucketreplication.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketreplication.go)
- [removebucketreplication.go](https://github.com/minio/minio-go/blob/master/examples/s3/removebucketreplication.go)
### Full Examples : Bucket notification Operations
- [setbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/s3/setbucketnotification.go)
- [getbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/s3/getbucketnotification.go)
- [removeallbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeallbucketnotification.go)
- [listenbucketnotification.go](https://github.com/minio/minio-go/blob/master/examples/minio/listenbucketnotification.go) (MinIO Extension)
- [listennotification.go](https://github.com/minio/minio-go/blob/master/examples/minio/listen-notification.go) (MinIO Extension)
### Full Examples : File Object Operations
- [fputobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/fputobject.go)
- [fgetobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/fgetobject.go)
### Full Examples : Object Operations
- [putobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/putobject.go)
- [getobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/getobject.go)
- [statobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/statobject.go)
- [copyobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/copyobject.go)
- [removeobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeobject.go)
- [removeincompleteupload.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeincompleteupload.go)
- [removeobjects.go](https://github.com/minio/minio-go/blob/master/examples/s3/removeobjects.go)
### Full Examples : Encrypted Object Operations
- [put-encrypted-object.go](https://github.com/minio/minio-go/blob/master/examples/s3/put-encrypted-object.go)
- [get-encrypted-object.go](https://github.com/minio/minio-go/blob/master/examples/s3/get-encrypted-object.go)
- [fput-encrypted-object.go](https://github.com/minio/minio-go/blob/master/examples/s3/fputencrypted-object.go)
### Full Examples : Presigned Operations
- [presignedgetobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedgetobject.go)
- [presignedputobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedputobject.go)
- [presignedheadobject.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedheadobject.go)
- [presignedpostpolicy.go](https://github.com/minio/minio-go/blob/master/examples/s3/presignedpostpolicy.go)
Explore Further
---------------
- [Godoc Documentation](https://pkg.go.dev/github.com/minio/minio-go/v7)
- [Complete Documentation](https://min.io/docs/minio/kubernetes/upstream/index.html)
- [MinIO Go Client SDK API Reference](https://min.io/docs/minio/linux/developers/go/API.html)
Contribute
----------
[Contributors Guide](https://github.com/minio/minio-go/blob/master/CONTRIBUTING.md)
License
-------
This SDK is distributed under the [Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0), see [LICENSE](https://github.com/minio/minio-go/blob/master/LICENSE) and [NOTICE](https://github.com/minio/minio-go/blob/master/NOTICE) for more information.
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2025 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"net/http"
"strconv"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// AppendObjectOptions https://docs.aws.amazon.com/AmazonS3/latest/userguide/directory-buckets-objects-append.html
type AppendObjectOptions struct {
// Provide a progress reader to indicate the current append() progress.
Progress io.Reader
// ChunkSize indicates the maximum append() size,
// it is useful when you want to control how much data
// per append() you are interested in sending to server
// while keeping the input io.Reader of a longer length.
ChunkSize uint64
// Aggressively disable sha256 payload, it is automatically
// turned-off for TLS supporting endpoints, useful in benchmarks
// where you are interested in the peak() numbers.
DisableContentSha256 bool
customHeaders http.Header
checksumType ChecksumType
offset int64
}
// Header returns the custom header for AppendObject API
func (opts AppendObjectOptions) Header() (header http.Header) {
header = make(http.Header)
for k, v := range opts.customHeaders {
header[k] = v
}
return header
}
func (opts *AppendObjectOptions) setWriteOffset(offset int64) {
if len(opts.customHeaders) == 0 {
opts.customHeaders = make(http.Header)
}
opts.customHeaders["x-amz-write-offset-bytes"] = []string{strconv.FormatInt(offset, 10)}
opts.offset = offset
}
func (opts *AppendObjectOptions) setChecksumParams(info ObjectInfo) {
if len(opts.customHeaders) == 0 {
opts.customHeaders = make(http.Header)
}
fullObject := info.ChecksumMode == ChecksumFullObjectMode.String()
switch {
case info.ChecksumCRC32 != "":
if fullObject {
opts.checksumType = ChecksumFullObjectCRC32
}
case info.ChecksumCRC32C != "":
if fullObject {
opts.checksumType = ChecksumFullObjectCRC32C
}
case info.ChecksumCRC64NVME != "":
// CRC64NVME only has a full object variant
// so it does not carry any special full object
// modifier
opts.checksumType = ChecksumCRC64NVME
}
}
func (opts AppendObjectOptions) validate(c *Client) (err error) {
if opts.ChunkSize > maxPartSize {
return errInvalidArgument("Append chunkSize cannot be larger than max part size allowed")
}
switch {
case !c.trailingHeaderSupport:
return errInvalidArgument("AppendObject() requires Client with TrailingHeaders enabled")
case c.overrideSignerType.IsV2():
return errInvalidArgument("AppendObject() cannot be used with v2 signatures")
case s3utils.IsGoogleEndpoint(*c.endpointURL):
return errInvalidArgument("AppendObject() cannot be used with GCS endpoints")
}
return nil
}
// appendObjectDo - executes the append object http operation.
// NOTE: You must have WRITE permissions on a bucket to add an object to it.
func (c *Client) appendObjectDo(ctx context.Context, bucketName, objectName string, reader io.Reader, size int64, opts AppendObjectOptions) (UploadInfo, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Set headers.
customHeader := opts.Header()
// Populate request metadata.
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
customHeader: customHeader,
contentBody: reader,
contentLength: size,
streamSha256: !opts.DisableContentSha256,
}
if opts.checksumType.IsSet() {
reqMetadata.addCrc = &opts.checksumType
reqMetadata.customHeader.Set(amzChecksumAlgo, opts.checksumType.String())
if opts.checksumType.FullObjectRequested() {
reqMetadata.customHeader.Set(amzChecksumMode, ChecksumFullObjectMode.String())
}
}
// Execute PUT an objectName.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return UploadInfo{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return UploadInfo{}, httpRespToErrorResponse(resp, bucketName, objectName)
}
}
h := resp.Header
// When AppendObject() is used, S3 Express will return final object size as x-amz-object-size
if amzSize := h.Get("x-amz-object-size"); amzSize != "" {
oSize := size
size, err = strconv.ParseInt(amzSize, 10, 64)
if err != nil {
return UploadInfo{}, err
}
if size != opts.offset+oSize {
return UploadInfo{}, errors.New("server returned incorrect object size")
}
} else {
return UploadInfo{}, errors.New("server does not support appends. Object has been overwritten")
}
return UploadInfo{
Bucket: bucketName,
Key: objectName,
ETag: trimEtag(h.Get("ETag")),
Size: size,
// Checksum values
ChecksumCRC32: h.Get(ChecksumCRC32.Key()),
ChecksumCRC32C: h.Get(ChecksumCRC32C.Key()),
ChecksumSHA1: h.Get(ChecksumSHA1.Key()),
ChecksumSHA256: h.Get(ChecksumSHA256.Key()),
ChecksumCRC64NVME: h.Get(ChecksumCRC64NVME.Key()),
ChecksumMD5: h.Get(ChecksumMD5.Key()),
ChecksumSHA512: h.Get(ChecksumSHA512.Key()),
ChecksumXXHash64: h.Get(ChecksumXXHash64.Key()),
ChecksumXXHash3: h.Get(ChecksumXXHash3.Key()),
ChecksumXXHash128: h.Get(ChecksumXXHash128.Key()),
ChecksumMode: h.Get(ChecksumFullObjectMode.Key()),
}, nil
}
// AppendObject - S3 Express Zone https://docs.aws.amazon.com/AmazonS3/latest/userguide/directory-buckets-objects-append.html
// Note that appending on a server without append support may overwrite the object.
func (c *Client) AppendObject(ctx context.Context, bucketName, objectName string, reader io.Reader, objectSize int64,
opts AppendObjectOptions,
) (info UploadInfo, err error) {
if objectSize < 0 && opts.ChunkSize == 0 {
return UploadInfo{}, errors.New("object size must be provided when no chunk size is provided")
}
if err = opts.validate(c); err != nil {
return UploadInfo{}, err
}
oinfo, err := c.StatObject(ctx, bucketName, objectName, StatObjectOptions{Checksum: true})
if err != nil {
return UploadInfo{}, err
}
if oinfo.ChecksumMode != "" && oinfo.ChecksumMode != ChecksumFullObjectMode.String() {
return UploadInfo{}, fmt.Errorf("Append() is not allowed on objects that are not of FULL_OBJECT checksum type: %s", oinfo.ChecksumMode)
}
opts.setChecksumParams(oinfo) // set the appropriate checksum params based on the existing object checksum metadata.
opts.setWriteOffset(oinfo.Size) // First append must set the current object size as the offset.
if opts.ChunkSize > 0 {
finalObjSize := int64(-1)
if objectSize > 0 {
finalObjSize = info.Size + objectSize
}
totalPartsCount, partSize, lastPartSize, err := OptimalPartInfo(finalObjSize, opts.ChunkSize)
if err != nil {
return UploadInfo{}, err
}
buf := make([]byte, partSize)
var partNumber int
for partNumber = 1; partNumber <= totalPartsCount; partNumber++ {
// Proceed to upload the part.
if partNumber == totalPartsCount {
partSize = lastPartSize
}
n, err := readFull(reader, buf)
if err != nil {
return info, err
}
if n != int(partSize) {
return info, io.ErrUnexpectedEOF
}
rd := newHook(bytes.NewReader(buf[:n]), opts.Progress)
uinfo, err := c.appendObjectDo(ctx, bucketName, objectName, rd, partSize, opts)
if err != nil {
return info, err
}
opts.setWriteOffset(uinfo.Size)
}
}
rd := newHook(reader, opts.Progress)
return c.appendObjectDo(ctx, bucketName, objectName, rd, objectSize, opts)
}
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2024 MinIO, Inc.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"net/http"
"net/url"
"github.com/minio/minio-go/v7/pkg/cors"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// SetBucketCors sets the Cross-Origin Resource Sharing (CORS) configuration for the bucket.
// If corsConfig is nil, the existing CORS configuration will be removed.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - corsConfig: CORS configuration to apply (nil to remove existing configuration)
//
// Returns an error if the operation fails.
func (c *Client) SetBucketCors(ctx context.Context, bucketName string, corsConfig *cors.Config) error {
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if corsConfig == nil {
return c.removeBucketCors(ctx, bucketName)
}
return c.putBucketCors(ctx, bucketName, corsConfig)
}
func (c *Client) putBucketCors(ctx context.Context, bucketName string, corsConfig *cors.Config) error {
urlValues := make(url.Values)
urlValues.Set("cors", "")
corsStr, err := corsConfig.ToXML()
if err != nil {
return err
}
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(corsStr),
contentLength: int64(len(corsStr)),
contentMD5Base64: sumMD5Base64([]byte(corsStr)),
}
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, "")
}
}
return nil
}
func (c *Client) removeBucketCors(ctx context.Context, bucketName string) error {
urlValues := make(url.Values)
urlValues.Set("cors", "")
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
// GetBucketCors retrieves the Cross-Origin Resource Sharing (CORS) configuration from the bucket.
// If no CORS configuration exists, returns nil with no error.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns the CORS configuration or an error if the operation fails.
func (c *Client) GetBucketCors(ctx context.Context, bucketName string) (*cors.Config, error) {
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, err
}
bucketCors, err := c.getBucketCors(ctx, bucketName)
if err != nil {
errResponse := ToErrorResponse(err)
if errResponse.Code == NoSuchCORSConfiguration {
return nil, nil
}
return nil, err
}
return bucketCors, nil
}
func (c *Client) getBucketCors(ctx context.Context, bucketName string) (*cors.Config, error) {
urlValues := make(url.Values)
urlValues.Set("cors", "")
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex, // TODO: needed? copied over from other example, but not spec'd in API.
})
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucketName, "")
}
}
corsConfig, err := cors.ParseBucketCorsConfig(resp.Body)
if err != nil {
return nil, err
}
return corsConfig, nil
}
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"net/http"
"net/url"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/sse"
)
// SetBucketEncryption sets the default encryption configuration on an existing bucket.
// The encryption configuration specifies the default encryption behavior for objects uploaded to the bucket.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - config: Server-side encryption configuration to apply
//
// Returns an error if the operation fails or if config is nil.
func (c *Client) SetBucketEncryption(ctx context.Context, bucketName string, config *sse.Configuration) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if config == nil {
return errInvalidArgument("configuration cannot be empty")
}
buf, err := xml.Marshal(config)
if err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("encryption", "")
// Content-length is mandatory to set a default encryption configuration
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(buf),
contentLength: int64(len(buf)),
contentMD5Base64: sumMD5Base64(buf),
}
// Execute PUT to upload a new bucket default encryption configuration.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
// RemoveBucketEncryption removes the default encryption configuration from a bucket.
// After removal, the bucket will no longer apply default encryption to new objects.
// It uses the provided context to control cancellations and timeouts.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns an error if the operation fails.
func (c *Client) RemoveBucketEncryption(ctx context.Context, bucketName string) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("encryption", "")
// DELETE default encryption configuration on a bucket.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
// GetBucketEncryption retrieves the default encryption configuration from a bucket.
// It uses the provided context to control cancellations and timeouts.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns the bucket's encryption configuration or an error if the operation fails.
func (c *Client) GetBucketEncryption(ctx context.Context, bucketName string) (*sse.Configuration, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("encryption", "")
// Execute GET on bucket to get the default encryption configuration.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucketName, "")
}
encryptionConfig := &sse.Configuration{}
if err = xmlDecoder(resp.Body, encryptionConfig); err != nil {
return nil, err
}
return encryptionConfig, nil
}
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"io"
"net/http"
"net/url"
"time"
"github.com/minio/minio-go/v7/pkg/lifecycle"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// SetBucketLifecycle set the lifecycle on an existing bucket.
func (c *Client) SetBucketLifecycle(ctx context.Context, bucketName string, config *lifecycle.Configuration) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// If lifecycle is empty then delete it.
if config.Empty() {
return c.removeBucketLifecycle(ctx, bucketName)
}
buf, err := xml.Marshal(config)
if err != nil {
return err
}
// Save the updated lifecycle.
return c.putBucketLifecycle(ctx, bucketName, buf)
}
// Saves a new bucket lifecycle.
func (c *Client) putBucketLifecycle(ctx context.Context, bucketName string, buf []byte) error {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("lifecycle", "")
// Content-length is mandatory for put lifecycle request
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(buf),
contentLength: int64(len(buf)),
contentMD5Base64: sumMD5Base64(buf),
}
// Execute PUT to upload a new bucket lifecycle.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
}
return nil
}
// Remove lifecycle from a bucket.
func (c *Client) removeBucketLifecycle(ctx context.Context, bucketName string) error {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("lifecycle", "")
// Execute DELETE on objectName.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
return nil
}
// GetBucketLifecycle fetch bucket lifecycle configuration
func (c *Client) GetBucketLifecycle(ctx context.Context, bucketName string) (*lifecycle.Configuration, error) {
lc, _, err := c.GetBucketLifecycleWithInfo(ctx, bucketName)
return lc, err
}
// GetBucketLifecycleWithInfo fetch bucket lifecycle configuration along with when it was last updated
func (c *Client) GetBucketLifecycleWithInfo(ctx context.Context, bucketName string) (*lifecycle.Configuration, time.Time, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, time.Time{}, err
}
bucketLifecycle, updatedAt, err := c.getBucketLifecycle(ctx, bucketName)
if err != nil {
return nil, time.Time{}, err
}
config := lifecycle.NewConfiguration()
if err = xml.Unmarshal(bucketLifecycle, config); err != nil {
return nil, time.Time{}, err
}
return config, updatedAt, nil
}
// Request server for current bucket lifecycle.
func (c *Client) getBucketLifecycle(ctx context.Context, bucketName string) ([]byte, time.Time, error) {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("lifecycle", "")
urlValues.Set("withUpdatedAt", "true")
// Execute GET on bucket to get lifecycle.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return nil, time.Time{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return nil, time.Time{}, httpRespToErrorResponse(resp, bucketName, "")
}
}
lcBytes, err := io.ReadAll(resp.Body)
if err != nil {
return nil, time.Time{}, err
}
const minIOLifecycleCfgUpdatedAt = "X-Minio-LifecycleConfig-UpdatedAt"
var updatedAt time.Time
if timeStr := resp.Header.Get(minIOLifecycleCfgUpdatedAt); timeStr != "" {
updatedAt, err = time.Parse(iso8601DateFormat, timeStr)
if err != nil {
return nil, time.Time{}, err
}
}
return lcBytes, updatedAt, nil
}
+252
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bufio"
"bytes"
"context"
"encoding/json"
"encoding/xml"
"net/http"
"net/url"
"time"
"github.com/minio/minio-go/v7/pkg/notification"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// SetBucketNotification saves a new bucket notification with a context to control cancellations and timeouts.
func (c *Client) SetBucketNotification(ctx context.Context, bucketName string, config notification.Configuration) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("notification", "")
notifBytes, err := xml.Marshal(&config)
if err != nil {
return err
}
notifBuffer := bytes.NewReader(notifBytes)
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: notifBuffer,
contentLength: int64(len(notifBytes)),
contentMD5Base64: sumMD5Base64(notifBytes),
contentSHA256Hex: sum256Hex(notifBytes),
}
// Execute PUT to upload a new bucket notification.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
}
return nil
}
// RemoveAllBucketNotification - Remove bucket notification clears all previously specified config
func (c *Client) RemoveAllBucketNotification(ctx context.Context, bucketName string) error {
return c.SetBucketNotification(ctx, bucketName, notification.Configuration{})
}
// GetBucketNotification returns current bucket notification configuration
func (c *Client) GetBucketNotification(ctx context.Context, bucketName string) (bucketNotification notification.Configuration, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return notification.Configuration{}, err
}
return c.getBucketNotification(ctx, bucketName)
}
// Request server for notification rules.
func (c *Client) getBucketNotification(ctx context.Context, bucketName string) (notification.Configuration, error) {
urlValues := make(url.Values)
urlValues.Set("notification", "")
// Execute GET on bucket to list objects.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return notification.Configuration{}, err
}
return processBucketNotificationResponse(bucketName, resp)
}
// processes the GetNotification http response from the server.
func processBucketNotificationResponse(bucketName string, resp *http.Response) (notification.Configuration, error) {
if resp.StatusCode != http.StatusOK {
errResponse := httpRespToErrorResponse(resp, bucketName, "")
return notification.Configuration{}, errResponse
}
var bucketNotification notification.Configuration
err := xmlDecoder(resp.Body, &bucketNotification)
if err != nil {
return notification.Configuration{}, err
}
return bucketNotification, nil
}
// ListenNotification listen for all events, this is a MinIO specific API
func (c *Client) ListenNotification(ctx context.Context, prefix, suffix string, events []string) <-chan notification.Info {
return c.ListenBucketNotification(ctx, "", prefix, suffix, events)
}
// ListenBucketNotification listen for bucket events, this is a MinIO specific API
func (c *Client) ListenBucketNotification(ctx context.Context, bucketName, prefix, suffix string, events []string) <-chan notification.Info {
notificationInfoCh := make(chan notification.Info, 1)
const notificationCapacity = 4 * 1024 * 1024
notificationEventBuffer := make([]byte, notificationCapacity)
// Only success, start a routine to start reading line by line.
go func(notificationInfoCh chan<- notification.Info) {
defer close(notificationInfoCh)
// Validate the bucket name.
if bucketName != "" {
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
select {
case notificationInfoCh <- notification.Info{
Err: err,
}:
case <-ctx.Done():
}
return
}
}
// Check ARN partition to verify if listening bucket is supported
if s3utils.IsAmazonEndpoint(*c.endpointURL) || s3utils.IsGoogleEndpoint(*c.endpointURL) {
select {
case notificationInfoCh <- notification.Info{
Err: errAPINotSupported("Listening for bucket notification is specific only to `minio` server endpoints"),
}:
case <-ctx.Done():
}
return
}
// Prepare urlValues to pass into the request on every loop
urlValues := make(url.Values)
urlValues.Set("ping", "10")
urlValues.Set("prefix", prefix)
urlValues.Set("suffix", suffix)
urlValues["events"] = events
// Wait on the jitter retry loop.
for range c.newRetryTimerContinous(time.Second, time.Second*30, MaxJitter) {
// Execute GET on bucket to list objects.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
if err != nil {
select {
case notificationInfoCh <- notification.Info{
Err: err,
}:
case <-ctx.Done():
}
return
}
// Validate http response, upon error return quickly.
if resp.StatusCode != http.StatusOK {
errResponse := httpRespToErrorResponse(resp, bucketName, "")
select {
case notificationInfoCh <- notification.Info{
Err: errResponse,
}:
case <-ctx.Done():
}
return
}
// Initialize a new bufio scanner, to read line by line.
bio := bufio.NewScanner(resp.Body)
// Use a higher buffer to support unexpected
// caching done by proxies
bio.Buffer(notificationEventBuffer, notificationCapacity)
// Unmarshal each line, returns marshaled values.
for bio.Scan() {
var notificationInfo notification.Info
if err = json.Unmarshal(bio.Bytes(), &notificationInfo); err != nil {
// Unexpected error during json unmarshal, send
// the error to caller for actionable as needed.
select {
case notificationInfoCh <- notification.Info{
Err: err,
}:
case <-ctx.Done():
return
}
closeResponse(resp)
continue
}
// Empty events pinged from the server
if len(notificationInfo.Records) == 0 && notificationInfo.Err == nil {
continue
}
// Send notificationInfo
select {
case notificationInfoCh <- notificationInfo:
case <-ctx.Done():
closeResponse(resp)
return
}
}
if err = bio.Err(); err != nil {
select {
case notificationInfoCh <- notification.Info{
Err: err,
}:
case <-ctx.Done():
return
}
}
// Close current connection before looping further.
closeResponse(resp)
}
}(notificationInfoCh)
// Returns the notification info channel, for caller to start reading from.
return notificationInfoCh
}
+163
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"io"
"net/http"
"net/url"
"strings"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// SetBucketPolicy sets the access permissions policy on an existing bucket.
// The policy should be a valid JSON string that conforms to the IAM policy format.
// If policy is an empty string, the existing bucket policy will be removed.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - policy: JSON policy string (empty string to remove existing policy)
//
// Returns an error if the operation fails.
func (c *Client) SetBucketPolicy(ctx context.Context, bucketName, policy string) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// If policy is empty then delete the bucket policy.
if policy == "" {
return c.removeBucketPolicy(ctx, bucketName)
}
// Save the updated policies.
return c.putBucketPolicy(ctx, bucketName, policy)
}
// Saves a new bucket policy.
func (c *Client) putBucketPolicy(ctx context.Context, bucketName, policy string) error {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("policy", "")
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: strings.NewReader(policy),
contentLength: int64(len(policy)),
}
// Execute PUT to upload a new bucket policy.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusNoContent && resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
}
return nil
}
// Removes all policies on a bucket.
func (c *Client) removeBucketPolicy(ctx context.Context, bucketName string) error {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("policy", "")
// Execute DELETE on objectName.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
// GetBucketPolicy retrieves the access permissions policy for the bucket.
// If no bucket policy exists, returns an empty string with no error.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns the policy as a JSON string or an error if the operation fails.
func (c *Client) GetBucketPolicy(ctx context.Context, bucketName string) (string, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return "", err
}
bucketPolicy, err := c.getBucketPolicy(ctx, bucketName)
if err != nil {
errResponse := ToErrorResponse(err)
if errResponse.Code == NoSuchBucketPolicy {
return "", nil
}
return "", err
}
return bucketPolicy, nil
}
// Request server for current bucket policy.
func (c *Client) getBucketPolicy(ctx context.Context, bucketName string) (string, error) {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("policy", "")
// Execute GET on bucket to list objects.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return "", err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return "", httpRespToErrorResponse(resp, bucketName, "")
}
}
bucketPolicyBuf, err := io.ReadAll(resp.Body)
if err != nil {
return "", err
}
policy := string(bucketPolicyBuf)
return policy, err
}
+212
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2025 MinIO, Inc.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"encoding/json"
"io"
"net/http"
"net/url"
"strings"
"github.com/minio/minio-go/v7/pkg/s3utils"
"go.yaml.in/yaml/v3"
)
// QOSConfigVersionCurrent is the current version of the QoS configuration.
const QOSConfigVersionCurrent = "v1"
// QOSConfig represents the QoS configuration for a bucket.
type QOSConfig struct {
Version string `yaml:"version"`
Rules []QOSRule `yaml:"rules"`
}
// QOSRule represents a single QoS rule.
type QOSRule struct {
ID string `yaml:"id"`
Label string `yaml:"label,omitempty"`
Priority int `yaml:"priority"`
ObjectPrefix string `yaml:"objectPrefix"`
API string `yaml:"api"`
Rate int64 `yaml:"rate"`
Burst int64 `yaml:"burst"` // not required for concurrency limit
Limit string `yaml:"limit"` // "concurrency" or "rps"
}
// NewQOSConfig creates a new empty QoS configuration.
func NewQOSConfig() *QOSConfig {
return &QOSConfig{
Version: "v1",
Rules: []QOSRule{},
}
}
// GetBucketQOS retrieves the Quality of Service (QoS) configuration for the bucket.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucket: Name of the bucket
//
// Returns the QoS configuration or an error if the operation fails.
func (c *Client) GetBucketQOS(ctx context.Context, bucket string) (*QOSConfig, error) {
var qosCfg QOSConfig
// Input validation.
if err := s3utils.CheckValidBucketName(bucket); err != nil {
return nil, err
}
urlValues := make(url.Values)
urlValues.Set("qos", "")
// Execute GET on bucket to fetch qos.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucket,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucket, "")
}
b, err := io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if err = yaml.Unmarshal(b, &qosCfg); err != nil {
return nil, err
}
return &qosCfg, nil
}
// SetBucketQOS sets the Quality of Service (QoS) configuration for a bucket.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucket: Name of the bucket
// - qosCfg: QoS configuration to apply
//
// Returns an error if the operation fails.
func (c *Client) SetBucketQOS(ctx context.Context, bucket string, qosCfg *QOSConfig) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucket); err != nil {
return err
}
data, err := yaml.Marshal(qosCfg)
if err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("qos", "")
reqMetadata := requestMetadata{
bucketName: bucket,
queryValues: urlValues,
contentBody: strings.NewReader(string(data)),
contentLength: int64(len(data)),
}
// Execute PUT to upload a new bucket QoS configuration.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusNoContent && resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucket, "")
}
}
return nil
}
// CounterMetric returns stats for a counter
type CounterMetric struct {
Last1m uint64 `json:"last1m"`
Last1hr uint64 `json:"last1hr"`
Total uint64 `json:"total"`
}
// QOSMetric - metric for a qos rule per bucket
type QOSMetric struct {
APIName string `json:"apiName"`
Rule QOSRule `json:"rule"`
Totals CounterMetric `json:"totals"`
Throttled CounterMetric `json:"throttleCount"`
ExceededRateLimit CounterMetric `json:"exceededRateLimitCount"`
ClientDisconnCount CounterMetric `json:"clientDisconnectCount"`
ReqTimeoutCount CounterMetric `json:"reqTimeoutCount"`
}
// QOSNodeStats represents stats for a bucket on a single node
type QOSNodeStats struct {
Stats []QOSMetric `json:"stats"`
NodeName string `json:"node"`
}
// GetBucketQOSMetrics retrieves Quality of Service (QoS) metrics for a bucket.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - nodeName: Name of the node (empty string for all nodes)
//
// Returns QoS metrics per node or an error if the operation fails.
func (c *Client) GetBucketQOSMetrics(ctx context.Context, bucketName, nodeName string) (qs []QOSNodeStats, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return qs, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("qos-metrics", "")
if nodeName != "" {
urlValues.Set("node", nodeName)
}
// Execute GET on bucket to get qos metrics.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return qs, err
}
if resp.StatusCode != http.StatusOK {
return qs, httpRespToErrorResponse(resp, bucketName, "")
}
respBytes, err := io.ReadAll(resp.Body)
if err != nil {
return qs, err
}
if err := json.Unmarshal(respBytes, &qs); err != nil {
return qs, err
}
return qs, nil
}
+458
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@@ -0,0 +1,458 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/json"
"encoding/xml"
"io"
"net/http"
"net/url"
"time"
"github.com/google/uuid"
"github.com/minio/minio-go/v7/pkg/replication"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// RemoveBucketReplication removes the replication configuration from an existing bucket.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns an error if the operation fails.
func (c *Client) RemoveBucketReplication(ctx context.Context, bucketName string) error {
return c.removeBucketReplication(ctx, bucketName)
}
// SetBucketReplication sets the replication configuration on an existing bucket.
// If the provided configuration is empty, this method removes the existing replication configuration.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - cfg: Replication configuration to apply
//
// Returns an error if the operation fails.
func (c *Client) SetBucketReplication(ctx context.Context, bucketName string, cfg replication.Config) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// If replication is empty then delete it.
if cfg.Empty() {
return c.removeBucketReplication(ctx, bucketName)
}
// Save the updated replication.
return c.putBucketReplication(ctx, bucketName, cfg)
}
// Saves a new bucket replication.
func (c *Client) putBucketReplication(ctx context.Context, bucketName string, cfg replication.Config) error {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication", "")
replication, err := xml.Marshal(cfg)
if err != nil {
return err
}
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(replication),
contentLength: int64(len(replication)),
contentMD5Base64: sumMD5Base64(replication),
}
// Execute PUT to upload a new bucket replication config.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
// Remove replication from a bucket.
func (c *Client) removeBucketReplication(ctx context.Context, bucketName string) error {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication", "")
// Execute DELETE on objectName.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
// GetBucketReplication retrieves the bucket replication configuration.
// If no replication configuration is found, returns an empty config with nil error.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns the replication configuration or an error if the operation fails.
func (c *Client) GetBucketReplication(ctx context.Context, bucketName string) (cfg replication.Config, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return cfg, err
}
bucketReplicationCfg, err := c.getBucketReplication(ctx, bucketName)
if err != nil {
errResponse := ToErrorResponse(err)
if errResponse.Code == "ReplicationConfigurationNotFoundError" {
return cfg, nil
}
return cfg, err
}
return bucketReplicationCfg, nil
}
// Request server for current bucket replication config.
func (c *Client) getBucketReplication(ctx context.Context, bucketName string) (cfg replication.Config, err error) {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication", "")
// Execute GET on bucket to get replication config.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return cfg, err
}
if resp.StatusCode != http.StatusOK {
return cfg, httpRespToErrorResponse(resp, bucketName, "")
}
if err = xmlDecoder(resp.Body, &cfg); err != nil {
return cfg, err
}
return cfg, nil
}
// GetBucketReplicationMetrics retrieves bucket replication status metrics.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns the replication metrics or an error if the operation fails.
func (c *Client) GetBucketReplicationMetrics(ctx context.Context, bucketName string) (s replication.Metrics, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return s, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication-metrics", "")
// Execute GET on bucket to get replication config.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return s, err
}
if resp.StatusCode != http.StatusOK {
return s, httpRespToErrorResponse(resp, bucketName, "")
}
respBytes, err := io.ReadAll(resp.Body)
if err != nil {
return s, err
}
if err := json.Unmarshal(respBytes, &s); err != nil {
return s, err
}
return s, nil
}
// mustGetUUID - get a random UUID.
func mustGetUUID() string {
u, err := uuid.NewRandom()
if err != nil {
return ""
}
return u.String()
}
// ResetBucketReplication initiates replication of previously replicated objects.
// This requires ExistingObjectReplication to be enabled in the replication configuration.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - olderThan: Only replicate objects older than this duration (0 for all objects)
//
// Returns a reset ID that can be used to track the operation, or an error if the operation fails.
func (c *Client) ResetBucketReplication(ctx context.Context, bucketName string, olderThan time.Duration) (rID string, err error) {
rID = mustGetUUID()
_, err = c.resetBucketReplicationOnTarget(ctx, bucketName, olderThan, "", rID)
if err != nil {
return rID, err
}
return rID, nil
}
// ResetBucketReplicationOnTarget initiates replication of previously replicated objects to a specific target.
// This requires ExistingObjectReplication to be enabled in the replication configuration.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - olderThan: Only replicate objects older than this duration (0 for all objects)
// - tgtArn: ARN of the target to reset replication for
//
// Returns resync target information or an error if the operation fails.
func (c *Client) ResetBucketReplicationOnTarget(ctx context.Context, bucketName string, olderThan time.Duration, tgtArn string) (replication.ResyncTargetsInfo, error) {
return c.resetBucketReplicationOnTarget(ctx, bucketName, olderThan, tgtArn, mustGetUUID())
}
// ResetBucketReplication kicks off replication of previously replicated objects if ExistingObjectReplication
// is enabled in the replication config
func (c *Client) resetBucketReplicationOnTarget(ctx context.Context, bucketName string, olderThan time.Duration, tgtArn, resetID string) (rinfo replication.ResyncTargetsInfo, err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return rinfo, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication-reset", "")
if olderThan > 0 {
urlValues.Set("older-than", olderThan.String())
}
if tgtArn != "" {
urlValues.Set("arn", tgtArn)
}
urlValues.Set("reset-id", resetID)
// Execute GET on bucket to get replication config.
resp, err := c.executeMethod(ctx, http.MethodPut, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return rinfo, err
}
if resp.StatusCode != http.StatusOK {
return rinfo, httpRespToErrorResponse(resp, bucketName, "")
}
if err = json.NewDecoder(resp.Body).Decode(&rinfo); err != nil {
return rinfo, err
}
return rinfo, nil
}
// GetBucketReplicationResyncStatus retrieves the status of a replication resync operation.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - arn: ARN of the replication target (empty string for all targets)
//
// Returns resync status information or an error if the operation fails.
func (c *Client) GetBucketReplicationResyncStatus(ctx context.Context, bucketName, arn string) (rinfo replication.ResyncTargetsInfo, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return rinfo, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication-reset-status", "")
if arn != "" {
urlValues.Set("arn", arn)
}
// Execute GET on bucket to get replication config.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return rinfo, err
}
if resp.StatusCode != http.StatusOK {
return rinfo, httpRespToErrorResponse(resp, bucketName, "")
}
if err = json.NewDecoder(resp.Body).Decode(&rinfo); err != nil {
return rinfo, err
}
return rinfo, nil
}
// CancelBucketReplicationResync cancels an in-progress replication resync operation.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - tgtArn: ARN of the replication target (empty string for all targets)
//
// Returns the ID of the canceled resync operation or an error if the operation fails.
func (c *Client) CancelBucketReplicationResync(ctx context.Context, bucketName string, tgtArn string) (id string, err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return id, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication-reset-cancel", "")
if tgtArn != "" {
urlValues.Set("arn", tgtArn)
}
// Execute GET on bucket to get replication config.
resp, err := c.executeMethod(ctx, http.MethodPut, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return id, err
}
if resp.StatusCode != http.StatusOK {
return id, httpRespToErrorResponse(resp, bucketName, "")
}
strBuf, err := io.ReadAll(resp.Body)
if err != nil {
return "", err
}
id = string(strBuf)
return id, nil
}
// GetBucketReplicationMetricsV2 retrieves bucket replication status metrics using the V2 API.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns the V2 replication metrics or an error if the operation fails.
func (c *Client) GetBucketReplicationMetricsV2(ctx context.Context, bucketName string) (s replication.MetricsV2, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return s, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication-metrics", "2")
// Execute GET on bucket to get replication metrics.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return s, err
}
if resp.StatusCode != http.StatusOK {
return s, httpRespToErrorResponse(resp, bucketName, "")
}
respBytes, err := io.ReadAll(resp.Body)
if err != nil {
return s, err
}
if err := json.Unmarshal(respBytes, &s); err != nil {
return s, err
}
return s, nil
}
// CheckBucketReplication validates whether replication is properly configured for a bucket.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns nil if replication is valid, or an error describing the validation failure.
func (c *Client) CheckBucketReplication(ctx context.Context, bucketName string) (err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("replication-check", "")
// Execute GET on bucket to get replication config.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
+153
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"errors"
"io"
"net/http"
"net/url"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/tags"
)
// GetBucketTagging fetches the tagging configuration for a bucket.
// It uses the provided context to control cancellations and timeouts.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns the bucket's tags or an error if the operation fails.
func (c *Client) GetBucketTagging(ctx context.Context, bucketName string) (*tags.Tags, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("tagging", "")
// Execute GET on bucket to get tagging configuration.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucketName, "")
}
defer io.Copy(io.Discard, resp.Body)
return tags.ParseBucketXML(resp.Body)
}
// SetBucketTagging sets the tagging configuration for a bucket.
// It uses the provided context to control cancellations and timeouts.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - tags: Tag set to apply to the bucket
//
// Returns an error if the operation fails or if tags is nil.
func (c *Client) SetBucketTagging(ctx context.Context, bucketName string, tags *tags.Tags) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if tags == nil {
return errors.New("nil tags passed")
}
buf, err := xml.Marshal(tags)
if err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("tagging", "")
// Content-length is mandatory to set a default encryption configuration
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(buf),
contentLength: int64(len(buf)),
contentMD5Base64: sumMD5Base64(buf),
}
// Execute PUT on bucket to put tagging configuration.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
// RemoveBucketTagging removes the tagging configuration from a bucket.
// It uses the provided context to control cancellations and timeouts.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
//
// Returns an error if the operation fails.
func (c *Client) RemoveBucketTagging(ctx context.Context, bucketName string) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("tagging", "")
// Execute DELETE on bucket to remove tagging configuration.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
+147
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@@ -0,0 +1,147 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"net/http"
"net/url"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// SetBucketVersioning sets a bucket versioning configuration
func (c *Client) SetBucketVersioning(ctx context.Context, bucketName string, config BucketVersioningConfiguration) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
buf, err := xml.Marshal(config)
if err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("versioning", "")
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(buf),
contentLength: int64(len(buf)),
contentMD5Base64: sumMD5Base64(buf),
contentSHA256Hex: sum256Hex(buf),
}
// Execute PUT to set a bucket versioning.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
}
return nil
}
// EnableVersioning - enable object versioning in given bucket.
func (c *Client) EnableVersioning(ctx context.Context, bucketName string) error {
return c.SetBucketVersioning(ctx, bucketName, BucketVersioningConfiguration{Status: "Enabled"})
}
// SuspendVersioning - suspend object versioning in given bucket.
func (c *Client) SuspendVersioning(ctx context.Context, bucketName string) error {
return c.SetBucketVersioning(ctx, bucketName, BucketVersioningConfiguration{Status: "Suspended"})
}
// ExcludedPrefix - holds individual prefixes excluded from being versioned.
type ExcludedPrefix struct {
Prefix string
}
// BucketVersioningConfiguration is the versioning configuration structure
type BucketVersioningConfiguration struct {
XMLName xml.Name `xml:"VersioningConfiguration"`
Status string `xml:"Status"`
MFADelete string `xml:"MfaDelete,omitempty"`
// MinIO extension - allows selective, prefix-level versioning exclusion.
// Requires versioning to be enabled
ExcludedPrefixes []ExcludedPrefix `xml:",omitempty"`
ExcludeFolders bool `xml:",omitempty"`
PurgeOnDelete string `xml:",omitempty"`
}
// Various supported states
const (
Enabled = "Enabled"
// Disabled State = "Disabled" only used by MFA Delete not supported yet.
Suspended = "Suspended"
)
// Enabled returns true if bucket versioning is enabled
func (b BucketVersioningConfiguration) Enabled() bool {
return b.Status == Enabled
}
// Suspended returns true if bucket versioning is suspended
func (b BucketVersioningConfiguration) Suspended() bool {
return b.Status == Suspended
}
// GetBucketVersioning gets the versioning configuration on
// an existing bucket with a context to control cancellations and timeouts.
func (c *Client) GetBucketVersioning(ctx context.Context, bucketName string) (BucketVersioningConfiguration, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return BucketVersioningConfiguration{}, err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("versioning", "")
// Execute GET on bucket to get the versioning configuration.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return BucketVersioningConfiguration{}, err
}
if resp.StatusCode != http.StatusOK {
return BucketVersioningConfiguration{}, httpRespToErrorResponse(resp, bucketName, "")
}
versioningConfig := BucketVersioningConfiguration{}
if err = xmlDecoder(resp.Body, &versioningConfig); err != nil {
return versioningConfig, err
}
return versioningConfig, nil
}
+631
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@@ -0,0 +1,631 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017, 2018 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"fmt"
"io"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/google/uuid"
"github.com/minio/minio-go/v7/pkg/encrypt"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/tags"
)
// CopyDestOptions represents options specified by user for CopyObject/ComposeObject APIs
type CopyDestOptions struct {
Bucket string // points to destination bucket
Object string // points to destination object
// `Encryption` is the key info for server-side-encryption with customer
// provided key. If it is nil, no encryption is performed.
Encryption encrypt.ServerSide
ChecksumType ChecksumType
// `userMeta` is the user-metadata key-value pairs to be set on the
// destination. The keys are automatically prefixed with `x-amz-meta-`
// if needed. If nil is passed, and if only a single source (of any
// size) is provided in the ComposeObject call, then metadata from the
// source is copied to the destination.
// if no user-metadata is provided, it is copied from source
// (when there is only one source object in the compose
// request)
UserMetadata map[string]string
// UserMetadata is only set to destination if ReplaceMetadata is true
// other value is UserMetadata is ignored and we preserve src.UserMetadata
// NOTE: if you set this value to true and now metadata is present
// in UserMetadata your destination object will not have any metadata
// set.
ReplaceMetadata bool
// `userTags` is the user defined object tags to be set on destination.
// This will be set only if the `replaceTags` field is set to true.
// Otherwise this field is ignored
UserTags map[string]string
ReplaceTags bool
// Specifies whether you want to apply a Legal Hold to the copied object.
LegalHold LegalHoldStatus
// Object Retention related fields
Mode RetentionMode
RetainUntilDate time.Time
Expires time.Time
ContentType string
ContentEncoding string
ContentDisposition string
ContentLanguage string
CacheControl string
Size int64 // Needs to be specified if progress bar is specified.
// Progress of the entire copy operation will be sent here.
Progress io.Reader
// PartSize specifies the part size for multipart copy operations.
// If not specified, defaults to maxPartSize (5 GiB).
PartSize uint64
}
// Process custom-metadata to remove a `x-amz-meta-` prefix if
// present and validate that keys are distinct (after this
// prefix removal).
func filterCustomMeta(userMeta map[string]string) map[string]string {
m := make(map[string]string)
for k, v := range userMeta {
if strings.HasPrefix(strings.ToLower(k), "x-amz-meta-") {
k = k[len("x-amz-meta-"):]
}
if _, ok := m[k]; ok {
continue
}
m[k] = v
}
return m
}
// Marshal converts all the CopyDestOptions into their
// equivalent HTTP header representation
func (opts CopyDestOptions) Marshal(header http.Header) {
const replaceDirective = "REPLACE"
if opts.ReplaceTags {
header.Set(amzTaggingHeaderDirective, replaceDirective)
if tags, _ := tags.NewTags(opts.UserTags, true); tags != nil {
header.Set(amzTaggingHeader, tags.String())
}
}
if opts.LegalHold != LegalHoldStatus("") {
header.Set(amzLegalHoldHeader, opts.LegalHold.String())
}
if opts.Mode != RetentionMode("") && !opts.RetainUntilDate.IsZero() {
header.Set(amzLockMode, opts.Mode.String())
header.Set(amzLockRetainUntil, opts.RetainUntilDate.Format(time.RFC3339))
}
if opts.Encryption != nil {
opts.Encryption.Marshal(header)
}
if opts.ContentType != "" {
header.Set("Content-Type", opts.ContentType)
}
if opts.ContentEncoding != "" {
header.Set("Content-Encoding", opts.ContentEncoding)
}
if opts.ContentDisposition != "" {
header.Set("Content-Disposition", opts.ContentDisposition)
}
if opts.ContentLanguage != "" {
header.Set("Content-Language", opts.ContentLanguage)
}
if opts.CacheControl != "" {
header.Set("Cache-Control", opts.CacheControl)
}
if !opts.Expires.IsZero() {
header.Set("Expires", opts.Expires.UTC().Format(http.TimeFormat))
}
if opts.ChecksumType.IsSet() {
header.Set(amzChecksumAlgo, opts.ChecksumType.String())
}
if opts.ReplaceMetadata {
header.Set("x-amz-metadata-directive", replaceDirective)
for k, v := range filterCustomMeta(opts.UserMetadata) {
if isAmzHeader(k) || isStandardHeader(k) || isStorageClassHeader(k) || isMinioHeader(k) {
header.Set(k, v)
} else {
header.Set("x-amz-meta-"+k, v)
}
}
}
}
// toDestinationInfo returns a validated copyOptions object.
func (opts CopyDestOptions) validate() (err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(opts.Bucket); err != nil {
return err
}
if err = s3utils.CheckValidObjectName(opts.Object); err != nil {
return err
}
if opts.Progress != nil && opts.Size < 0 {
return errInvalidArgument("For progress bar effective size needs to be specified")
}
return nil
}
// CopySrcOptions represents a source object to be copied, using
// server-side copying APIs.
type CopySrcOptions struct {
Bucket, Object string
VersionID string
MatchETag string
NoMatchETag string
MatchModifiedSince time.Time
MatchUnmodifiedSince time.Time
MatchRange bool
Start, End int64
Encryption encrypt.ServerSide
}
// Marshal converts all the CopySrcOptions into their
// equivalent HTTP header representation
func (opts CopySrcOptions) Marshal(header http.Header) {
// Set the source header
header.Set("x-amz-copy-source", s3utils.EncodePath(opts.Bucket+"/"+opts.Object))
if opts.VersionID != "" {
header.Set("x-amz-copy-source", s3utils.EncodePath(opts.Bucket+"/"+opts.Object)+"?versionId="+opts.VersionID)
}
if opts.MatchETag != "" {
header.Set("x-amz-copy-source-if-match", opts.MatchETag)
}
if opts.NoMatchETag != "" {
header.Set("x-amz-copy-source-if-none-match", opts.NoMatchETag)
}
if !opts.MatchModifiedSince.IsZero() {
header.Set("x-amz-copy-source-if-modified-since", opts.MatchModifiedSince.Format(http.TimeFormat))
}
if !opts.MatchUnmodifiedSince.IsZero() {
header.Set("x-amz-copy-source-if-unmodified-since", opts.MatchUnmodifiedSince.Format(http.TimeFormat))
}
if opts.Encryption != nil {
encrypt.SSECopy(opts.Encryption).Marshal(header)
}
}
func (opts CopySrcOptions) validate() (err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(opts.Bucket); err != nil {
return err
}
if err = s3utils.CheckValidObjectName(opts.Object); err != nil {
return err
}
if opts.Start > opts.End || opts.Start < 0 {
return errInvalidArgument("start must be non-negative, and start must be at most end.")
}
return nil
}
// Low level implementation of CopyObject API, supports only upto 5GiB worth of copy.
func (c *Client) copyObjectDo(ctx context.Context, srcBucket, srcObject, destBucket, destObject string,
metadata map[string]string, srcOpts CopySrcOptions, dstOpts PutObjectOptions,
) (ObjectInfo, error) {
// Build headers.
headers := make(http.Header)
// Set all the metadata headers.
for k, v := range metadata {
headers.Set(k, v)
}
if !dstOpts.Internal.ReplicationStatus.Empty() {
headers.Set(amzBucketReplicationStatus, string(dstOpts.Internal.ReplicationStatus))
}
if !dstOpts.Internal.SourceMTime.IsZero() {
headers.Set(minIOBucketSourceMTime, dstOpts.Internal.SourceMTime.Format(time.RFC3339Nano))
}
if dstOpts.Internal.SourceETag != "" {
headers.Set(minIOBucketSourceETag, dstOpts.Internal.SourceETag)
}
if dstOpts.Internal.ReplicationRequest {
headers.Set(minIOBucketReplicationRequest, "true")
}
if dstOpts.Internal.ReplicationValidityCheck {
headers.Set(minIOBucketReplicationCheck, "true")
}
if !dstOpts.Internal.LegalholdTimestamp.IsZero() {
headers.Set(minIOBucketReplicationObjectLegalHoldTimestamp, dstOpts.Internal.LegalholdTimestamp.Format(time.RFC3339Nano))
}
if !dstOpts.Internal.RetentionTimestamp.IsZero() {
headers.Set(minIOBucketReplicationObjectRetentionTimestamp, dstOpts.Internal.RetentionTimestamp.Format(time.RFC3339Nano))
}
if !dstOpts.Internal.TaggingTimestamp.IsZero() {
headers.Set(minIOBucketReplicationTaggingTimestamp, dstOpts.Internal.TaggingTimestamp.Format(time.RFC3339Nano))
}
if len(dstOpts.UserTags) != 0 {
if tags, _ := tags.NewTags(dstOpts.UserTags, true); tags != nil {
headers.Set(amzTaggingHeader, tags.String())
}
}
reqMetadata := requestMetadata{
bucketName: destBucket,
objectName: destObject,
customHeader: headers,
}
if dstOpts.Internal.SourceVersionID != "" {
if dstOpts.Internal.SourceVersionID != nullVersionID {
if _, err := uuid.Parse(dstOpts.Internal.SourceVersionID); err != nil {
return ObjectInfo{}, errInvalidArgument(err.Error())
}
}
urlValues := make(url.Values)
urlValues.Set("versionId", dstOpts.Internal.SourceVersionID)
reqMetadata.queryValues = urlValues
}
// Set the source header
headers.Set("x-amz-copy-source", s3utils.EncodePath(srcBucket+"/"+srcObject))
if srcOpts.VersionID != "" {
headers.Set("x-amz-copy-source", s3utils.EncodePath(srcBucket+"/"+srcObject)+"?versionId="+srcOpts.VersionID)
}
// Send upload-part-copy request
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return ObjectInfo{}, err
}
// Check if we got an error response.
if resp.StatusCode != http.StatusOK {
return ObjectInfo{}, httpRespToErrorResponse(resp, srcBucket, srcObject)
}
cpObjRes := copyObjectResult{}
err = xmlDecoder(resp.Body, &cpObjRes)
if err != nil {
return ObjectInfo{}, err
}
objInfo := ObjectInfo{
Key: destObject,
ETag: strings.Trim(cpObjRes.ETag, "\""),
LastModified: cpObjRes.LastModified,
}
return objInfo, nil
}
func (c *Client) copyObjectPartDo(ctx context.Context, srcBucket, srcObject, destBucket, destObject, uploadID string,
partID int, startOffset, length int64, metadata map[string]string,
) (p CompletePart, err error) {
headers := make(http.Header)
// Set source
headers.Set("x-amz-copy-source", s3utils.EncodePath(srcBucket+"/"+srcObject))
if startOffset < 0 {
return p, errInvalidArgument("startOffset must be non-negative")
}
if length >= 0 {
headers.Set("x-amz-copy-source-range", fmt.Sprintf("bytes=%d-%d", startOffset, startOffset+length-1))
}
for k, v := range metadata {
headers.Set(k, v)
}
queryValues := make(url.Values)
queryValues.Set("partNumber", strconv.Itoa(partID))
queryValues.Set("uploadId", uploadID)
resp, err := c.executeMethod(ctx, http.MethodPut, requestMetadata{
bucketName: destBucket,
objectName: destObject,
customHeader: headers,
queryValues: queryValues,
})
defer closeResponse(resp)
if err != nil {
return p, err
}
// Check if we got an error response.
if resp.StatusCode != http.StatusOK {
return p, httpRespToErrorResponse(resp, destBucket, destObject)
}
// Decode copy-part response on success.
cpObjRes := copyObjectResult{}
err = xmlDecoder(resp.Body, &cpObjRes)
if err != nil {
return p, err
}
p.PartNumber, p.ETag = partID, cpObjRes.ETag
return p, nil
}
// uploadPartCopy - helper function to create a part in a multipart
// upload via an upload-part-copy request
// https://docs.aws.amazon.com/AmazonS3/latest/API/mpUploadUploadPartCopy.html
func (c *Client) uploadPartCopy(ctx context.Context, bucket, object, uploadID string, partNumber int,
headers http.Header,
) (p CompletePart, err error) {
// Build query parameters
urlValues := make(url.Values)
urlValues.Set("partNumber", strconv.Itoa(partNumber))
urlValues.Set("uploadId", uploadID)
// Send upload-part-copy request
resp, err := c.executeMethod(ctx, http.MethodPut, requestMetadata{
bucketName: bucket,
objectName: object,
customHeader: headers,
queryValues: urlValues,
})
defer closeResponse(resp)
if err != nil {
return p, err
}
// Check if we got an error response.
if resp.StatusCode != http.StatusOK {
return p, httpRespToErrorResponse(resp, bucket, object)
}
// Decode copy-part response on success.
cpObjRes := copyObjectResult{}
err = xmlDecoder(resp.Body, &cpObjRes)
if err != nil {
return p, err
}
p.PartNumber, p.ETag = partNumber, cpObjRes.ETag
return p, nil
}
// ComposeObject - creates an object using server-side copying
// of existing objects. It takes a list of source objects (with optional offsets)
// and concatenates them into a new object using only server-side copying
// operations. Optionally takes progress reader hook for applications to
// look at current progress.
func (c *Client) ComposeObject(ctx context.Context, dst CopyDestOptions, srcs ...CopySrcOptions) (UploadInfo, error) {
if len(srcs) < 1 || len(srcs) > maxPartsCount {
return UploadInfo{}, errInvalidArgument("There must be as least one and up to 10000 source objects.")
}
for _, src := range srcs {
if err := src.validate(); err != nil {
return UploadInfo{}, err
}
}
if err := dst.validate(); err != nil {
return UploadInfo{}, err
}
srcObjectInfos := make([]ObjectInfo, len(srcs))
srcObjectSizes := make([]int64, len(srcs))
var totalSize, totalParts int64
var err error
for i, src := range srcs {
opts := StatObjectOptions{ServerSideEncryption: encrypt.SSE(src.Encryption), VersionID: src.VersionID}
srcObjectInfos[i], err = c.StatObject(context.Background(), src.Bucket, src.Object, opts)
if err != nil {
return UploadInfo{}, err
}
srcCopySize := srcObjectInfos[i].Size
// Check if a segment is specified, and if so, is the
// segment within object bounds?
if src.MatchRange {
// Since range is specified,
// 0 <= src.start <= src.end
// so only invalid case to check is:
if src.End >= srcCopySize || src.Start < 0 {
return UploadInfo{}, errInvalidArgument(
fmt.Sprintf("CopySrcOptions %d has invalid segment-to-copy [%d, %d] (size is %d)",
i, src.Start, src.End, srcCopySize))
}
srcCopySize = src.End - src.Start + 1
}
// Only the last source may be less than `absMinPartSize`
if srcCopySize < absMinPartSize && i < len(srcs)-1 {
return UploadInfo{}, errInvalidArgument(
fmt.Sprintf("CopySrcOptions %d is too small (%d) and it is not the last part", i, srcCopySize))
}
// Is data to copy too large?
totalSize += srcCopySize
if totalSize > maxObjectSize {
return UploadInfo{}, errInvalidArgument(fmt.Sprintf("Cannot compose an object of size %d (> 5GiB * 10000)", totalSize))
}
// record source size
srcObjectSizes[i] = srcCopySize
// calculate parts needed for current source
totalParts += partsRequired(srcCopySize, int64(dst.PartSize))
// Do we need more parts than we are allowed?
if totalParts > maxPartsCount {
return UploadInfo{}, errInvalidArgument(fmt.Sprintf(
"Your proposed compose object requires more than %d parts", maxPartsCount))
}
}
// Single source object case (i.e. when only one source is
// involved, it is being copied wholly and at most 5GiB in
// size, emptyfiles are also supported).
if (totalParts == 1 && srcs[0].Start == -1 && totalSize <= maxPartSize) || (totalSize == 0) {
return c.CopyObject(ctx, dst, srcs[0])
}
// Now, handle multipart-copy cases.
// 1. Ensure that the object has not been changed while
// we are copying data.
for i, src := range srcs {
src.MatchETag = srcObjectInfos[i].ETag
}
// 2. Initiate a new multipart upload.
// Set user-metadata on the destination object. If no
// user-metadata is specified, and there is only one source,
// (only) then metadata from source is copied.
var userMeta map[string]string
if dst.ReplaceMetadata {
userMeta = dst.UserMetadata
} else {
userMeta = srcObjectInfos[0].UserMetadata
}
var userTags map[string]string
if dst.ReplaceTags {
userTags = dst.UserTags
} else {
userTags = srcObjectInfos[0].UserTags
}
uploadID, err := c.newUploadID(ctx, dst.Bucket, dst.Object, PutObjectOptions{
ServerSideEncryption: dst.Encryption,
UserMetadata: userMeta,
UserTags: userTags,
Mode: dst.Mode,
RetainUntilDate: dst.RetainUntilDate,
LegalHold: dst.LegalHold,
})
if err != nil {
return UploadInfo{}, err
}
// 3. Perform copy part uploads
objParts := []CompletePart{}
partIndex := 1
for i, src := range srcs {
h := make(http.Header)
src.Marshal(h)
if dst.Encryption != nil && dst.Encryption.Type() == encrypt.SSEC {
dst.Encryption.Marshal(h)
}
// calculate start/end indices of parts after
// splitting.
startIdx, endIdx := calculateEvenSplits(srcObjectSizes[i], src, int64(dst.PartSize))
for j, start := range startIdx {
end := endIdx[j]
// Add (or reset) source range header for
// upload part copy request.
h.Set("x-amz-copy-source-range",
fmt.Sprintf("bytes=%d-%d", start, end))
// make upload-part-copy request
complPart, err := c.uploadPartCopy(ctx, dst.Bucket,
dst.Object, uploadID, partIndex, h)
if err != nil {
return UploadInfo{}, err
}
if dst.Progress != nil {
io.CopyN(io.Discard, dst.Progress, end-start+1)
}
objParts = append(objParts, complPart)
partIndex++
}
}
// 4. Make final complete-multipart request.
uploadInfo, err := c.completeMultipartUpload(ctx, dst.Bucket, dst.Object, uploadID,
completeMultipartUpload{Parts: objParts}, PutObjectOptions{ServerSideEncryption: dst.Encryption})
if err != nil {
return UploadInfo{}, err
}
uploadInfo.Size = totalSize
return uploadInfo, nil
}
// partsRequired calculates the number of parts needed for a given size
// using the specified part size. If partSize is 0, defaults to maxPartSize (5 GiB).
func partsRequired(size int64, partSize int64) int64 {
if partSize == 0 {
partSize = maxPartSize
}
r := size / partSize
if size%partSize > 0 {
r++
}
return r
}
// calculateEvenSplits - computes splits for a source and returns
// start and end index slices. Splits happen evenly to be sure that no
// part is less than 5MiB, as that could fail the multipart request if
// it is not the last part. If partSize is 0, defaults to maxPartSize (5 GiB).
func calculateEvenSplits(size int64, src CopySrcOptions, partSize int64) (startIndex, endIndex []int64) {
if size == 0 {
return startIndex, endIndex
}
reqParts := partsRequired(size, partSize)
startIndex = make([]int64, reqParts)
endIndex = make([]int64, reqParts)
// Compute number of required parts `k`, as:
//
// k = ceiling(size / copyPartSize)
//
// Now, distribute the `size` bytes in the source into
// k parts as evenly as possible:
//
// r parts sized (q+1) bytes, and
// (k - r) parts sized q bytes, where
//
// size = q * k + r (by simple division of size by k,
// so that 0 <= r < k)
//
start := src.Start
if start == -1 {
start = 0
}
quot, rem := size/reqParts, size%reqParts
nextStart := start
for j := int64(0); j < reqParts; j++ {
curPartSize := quot
if j < rem {
curPartSize++
}
cStart := nextStart
cEnd := cStart + curPartSize - 1
nextStart = cEnd + 1
startIndex[j], endIndex[j] = cStart, cEnd
}
return startIndex, endIndex
}
+76
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017, 2018 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"io"
"net/http"
)
// CopyObject - copy a source object into a new object
func (c *Client) CopyObject(ctx context.Context, dst CopyDestOptions, src CopySrcOptions) (UploadInfo, error) {
if err := src.validate(); err != nil {
return UploadInfo{}, err
}
if err := dst.validate(); err != nil {
return UploadInfo{}, err
}
header := make(http.Header)
dst.Marshal(header)
src.Marshal(header)
resp, err := c.executeMethod(ctx, http.MethodPut, requestMetadata{
bucketName: dst.Bucket,
objectName: dst.Object,
customHeader: header,
})
if err != nil {
return UploadInfo{}, err
}
defer closeResponse(resp)
if resp.StatusCode != http.StatusOK {
return UploadInfo{}, httpRespToErrorResponse(resp, dst.Bucket, dst.Object)
}
// Update the progress properly after successful copy.
if dst.Progress != nil {
io.Copy(io.Discard, io.LimitReader(dst.Progress, dst.Size))
}
cpObjRes := copyObjectResult{}
if err = xmlDecoder(resp.Body, &cpObjRes); err != nil {
return UploadInfo{}, err
}
// extract lifecycle expiry date and rule ID
expTime, ruleID := amzExpirationToExpiryDateRuleID(resp.Header.Get(amzExpiration))
return UploadInfo{
Bucket: dst.Bucket,
Key: dst.Object,
LastModified: cpObjRes.LastModified,
ETag: trimEtag(cpObjRes.ETag),
VersionID: resp.Header.Get(amzVersionID),
Expiration: expTime,
ExpirationRuleID: ruleID,
}, nil
}
+274
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@@ -0,0 +1,274 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"encoding/xml"
"io"
"net/http"
"net/url"
"strings"
"time"
)
// BucketInfo container for bucket metadata.
type BucketInfo struct {
// The name of the bucket.
Name string `json:"name"`
// Date the bucket was created.
CreationDate time.Time `json:"creationDate"`
// BucketRegion region where the bucket is present
BucketRegion string `json:"bucketRegion"`
}
// StringMap represents map with custom UnmarshalXML
type StringMap map[string]string
// UnmarshalXML unmarshals the XML into a map of string to strings,
// creating a key in the map for each tag and setting it's value to the
// tags contents.
//
// The fact this function is on the pointer of Map is important, so that
// if m is nil it can be initialized, which is often the case if m is
// nested in another xml structural. This is also why the first thing done
// on the first line is initialize it.
func (m *StringMap) UnmarshalXML(d *xml.Decoder, _ xml.StartElement) error {
*m = StringMap{}
for {
// Format is <key>value</key>
var e struct {
XMLName xml.Name
Value string `xml:",chardata"`
}
err := d.Decode(&e)
if err == io.EOF {
break
}
if err != nil {
return err
}
(*m)[e.XMLName.Local] = e.Value
}
return nil
}
// URLMap represents map with custom UnmarshalXML
type URLMap map[string]string
// UnmarshalXML unmarshals the XML into a map of string to strings,
// creating a key in the map for each tag and setting it's value to the
// tags contents.
//
// The fact this function is on the pointer of Map is important, so that
// if m is nil it can be initialized, which is often the case if m is
// nested in another xml structural. This is also why the first thing done
// on the first line is initialize it.
func (m *URLMap) UnmarshalXML(d *xml.Decoder, se xml.StartElement) error {
*m = URLMap{}
var tgs string
if err := d.DecodeElement(&tgs, &se); err != nil {
if err == io.EOF {
return nil
}
return err
}
for tgs != "" {
var key string
key, tgs, _ = stringsCut(tgs, "&")
if key == "" {
continue
}
key, value, _ := stringsCut(key, "=")
key, err := url.QueryUnescape(key)
if err != nil {
return err
}
value, err = url.QueryUnescape(value)
if err != nil {
return err
}
(*m)[key] = value
}
return nil
}
// stringsCut slices s around the first instance of sep,
// returning the text before and after sep.
// The found result reports whether sep appears in s.
// If sep does not appear in s, cut returns s, "", false.
func stringsCut(s, sep string) (before, after string, found bool) {
if i := strings.Index(s, sep); i >= 0 {
return s[:i], s[i+len(sep):], true
}
return s, "", false
}
// Owner name.
type Owner struct {
XMLName xml.Name `xml:"Owner" json:"owner"`
DisplayName string `xml:"ID" json:"name"`
ID string `xml:"DisplayName" json:"id"`
}
// UploadInfo contains information about the
// newly uploaded or copied object.
type UploadInfo struct {
Bucket string
Key string
ETag string
Size int64
LastModified time.Time
Location string
VersionID string
// Lifecycle expiry-date and ruleID associated with the expiry
// not to be confused with `Expires` HTTP header.
Expiration time.Time
ExpirationRuleID string
// Verified checksum values, if any.
// Values are base64 (standard) encoded.
// For multipart objects this is a checksum of the checksum of each part.
ChecksumCRC32 string
ChecksumCRC32C string
ChecksumSHA1 string
ChecksumSHA256 string
ChecksumCRC64NVME string
ChecksumMD5 string
ChecksumSHA512 string
ChecksumXXHash64 string
ChecksumXXHash3 string
ChecksumXXHash128 string
ChecksumMode string
}
// RestoreInfo contains information of the restore operation of an archived object
type RestoreInfo struct {
// Is the restoring operation is still ongoing
OngoingRestore bool
// When the restored copy of the archived object will be removed
ExpiryTime time.Time
}
// ObjectInfo container for object metadata.
type ObjectInfo struct {
// An ETag is optionally set to md5sum of an object. In case of multipart objects,
// ETag is of the form MD5SUM-N where MD5SUM is md5sum of all individual md5sums of
// each parts concatenated into one string.
ETag string `json:"etag"`
Key string `json:"name"` // Name of the object
LastModified time.Time `json:"lastModified"` // Date and time the object was last modified.
Size int64 `json:"size"` // Size in bytes of the object.
ContentType string `json:"contentType"` // A standard MIME type describing the format of the object data.
ContentEncoding string `json:"contentEncoding"` // A standard MIME type describing encoding of the object data.
Expires time.Time `json:"expires"` // The date and time at which the object is no longer able to be cached.
// Collection of additional metadata on the object.
// eg: x-amz-meta-*, content-encoding etc.
Metadata http.Header `json:"metadata" xml:"-"`
// x-amz-meta-* headers stripped "x-amz-meta-" prefix containing the first value.
// Only returned by MinIO servers.
UserMetadata StringMap `json:"userMetadata,omitempty"`
// x-amz-tagging values in their k/v values.
// Only returned by MinIO servers.
UserTags URLMap `json:"userTags,omitempty" xml:"UserTags"`
// x-amz-tagging-count value
UserTagCount int
// Owner name.
Owner Owner
// ACL grant.
Grant []Grant
// The class of storage used to store the object.
StorageClass string `json:"storageClass"`
// Versioning related information
IsLatest bool
IsDeleteMarker bool
VersionID string `xml:"VersionId"`
// x-amz-replication-status value is either in one of the following states
// - COMPLETED
// - PENDING
// - FAILED
// - REPLICA (on the destination)
ReplicationStatus string `xml:"ReplicationStatus"`
// set to true if delete marker has backing object version on target, and eligible to replicate
ReplicationReady bool
// Lifecycle expiry-date and ruleID associated with the expiry
// not to be confused with `Expires` HTTP header.
Expiration time.Time
ExpirationRuleID string
// NumVersions is the number of versions of the object.
NumVersions int
Restore *RestoreInfo
// Checksum values
ChecksumCRC32 string
ChecksumCRC32C string
ChecksumSHA1 string
ChecksumSHA256 string
ChecksumCRC64NVME string
ChecksumMD5 string
ChecksumSHA512 string
ChecksumXXHash64 string
ChecksumXXHash3 string
ChecksumXXHash128 string
ChecksumAlgorithm string
ChecksumMode string `xml:"ChecksumType"`
Internal *struct {
K int // Data blocks
M int // Parity blocks
} `xml:"Internal"`
// Error
Err error `json:"-"`
}
// ObjectMultipartInfo container for multipart object metadata.
type ObjectMultipartInfo struct {
// Date and time at which the multipart upload was initiated.
Initiated time.Time `type:"timestamp" timestampFormat:"iso8601"`
Initiator initiator
Owner owner
// The type of storage to use for the object. Defaults to 'STANDARD'.
StorageClass string
// Key of the object for which the multipart upload was initiated.
Key string
// Size in bytes of the object.
Size int64
// Upload ID that identifies the multipart upload.
UploadID string `xml:"UploadId"`
// Error
Err error
}
+295
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@@ -0,0 +1,295 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"encoding/xml"
"errors"
"fmt"
"io"
"net/http"
"strings"
)
/* **** SAMPLE ERROR RESPONSE ****
<?xml version="1.0" encoding="UTF-8"?>
<Error>
<Code>AccessDenied</Code>
<Message>Access Denied</Message>
<BucketName>bucketName</BucketName>
<Key>objectName</Key>
<RequestId>F19772218238A85A</RequestId>
<HostId>GuWkjyviSiGHizehqpmsD1ndz5NClSP19DOT+s2mv7gXGQ8/X1lhbDGiIJEXpGFD</HostId>
</Error>
*/
// ErrorResponse - Is the typed error returned by all API operations.
// ErrorResponse struct should be comparable since it is compared inside
// golang http API (https://github.com/golang/go/issues/29768)
type ErrorResponse struct {
XMLName xml.Name `xml:"Error" json:"-"`
Code string
Message string
BucketName string
Key string
Resource string
RequestID string `xml:"RequestId"`
HostID string `xml:"HostId"`
// Region where the bucket is located. This header is returned
// only in HEAD bucket and ListObjects response.
Region string
// Captures the server string returned in response header.
Server string
// Underlying HTTP status code for the returned error
StatusCode int `xml:"-" json:"-"`
}
// ToErrorResponse - Returns parsed ErrorResponse struct from body and
// http headers.
//
// For example:
//
// import s3 "github.com/minio/minio-go/v7"
// ...
// ...
// reader, stat, err := s3.GetObject(...)
// if err != nil {
// resp := s3.ToErrorResponse(err)
// }
// ...
func ToErrorResponse(err error) ErrorResponse {
switch err := err.(type) {
case ErrorResponse:
return err
default:
return ErrorResponse{}
}
}
// Error - Returns S3 error string.
func (e ErrorResponse) Error() string {
if e.Message == "" {
msg, ok := s3ErrorResponseMap[e.Code]
if !ok {
msg = fmt.Sprintf("Error response code %s.", e.Code)
}
return msg
}
return e.Message
}
// Common string for errors to report issue location in unexpected
// cases.
const (
reportIssue = "Please report this issue at https://github.com/minio/minio-go/issues."
)
// xmlDecodeAndBody reads the whole body up to 1MB and
// tries to XML decode it into v.
// The body that was read and any error from reading or decoding is returned.
func xmlDecodeAndBody(bodyReader io.Reader, v interface{}) ([]byte, error) {
// read the whole body (up to 1MB)
const maxBodyLength = 1 << 20
body, err := io.ReadAll(io.LimitReader(bodyReader, maxBodyLength))
if err != nil {
return nil, err
}
return bytes.TrimSpace(body), xmlDecoder(bytes.NewReader(body), v)
}
// httpRespToErrorResponse returns a new encoded ErrorResponse
// structure as error.
func httpRespToErrorResponse(resp *http.Response, bucketName, objectName string) error {
if resp == nil {
msg := "Empty http response. " + reportIssue
return errInvalidArgument(msg)
}
errResp := ErrorResponse{
StatusCode: resp.StatusCode,
Server: resp.Header.Get("Server"),
}
success := successStatus.Contains(resp.StatusCode)
errBody, err := xmlDecodeAndBody(resp.Body, &errResp)
// Xml decoding failed with no body, fall back to HTTP headers.
if err != nil {
var unmarshalErr xml.UnmarshalError
if success && errors.As(err, &unmarshalErr) {
// This is a successful message so not an error response
// return nil,
return nil
}
switch resp.StatusCode {
case http.StatusNotFound:
if objectName == "" {
errResp = ErrorResponse{
StatusCode: resp.StatusCode,
Code: NoSuchBucket,
Message: s3ErrorResponseMap[NoSuchBucket],
BucketName: bucketName,
}
} else {
errResp = ErrorResponse{
StatusCode: resp.StatusCode,
Code: NoSuchKey,
Message: s3ErrorResponseMap[NoSuchKey],
BucketName: bucketName,
Key: objectName,
}
}
case http.StatusForbidden:
errResp = ErrorResponse{
StatusCode: resp.StatusCode,
Code: AccessDenied,
Message: s3ErrorResponseMap[AccessDenied],
BucketName: bucketName,
Key: objectName,
}
case http.StatusConflict:
errResp = ErrorResponse{
StatusCode: resp.StatusCode,
Code: Conflict,
Message: s3ErrorResponseMap[Conflict],
BucketName: bucketName,
}
case http.StatusPreconditionFailed:
errResp = ErrorResponse{
StatusCode: resp.StatusCode,
Code: PreconditionFailed,
Message: s3ErrorResponseMap[PreconditionFailed],
BucketName: bucketName,
Key: objectName,
}
default:
msg := resp.Status
if len(errBody) > 0 {
msg = string(errBody)
if len(msg) > 1024 {
msg = msg[:1024] + "..."
}
}
errResp = ErrorResponse{
StatusCode: resp.StatusCode,
Code: resp.Status,
Message: msg,
BucketName: bucketName,
}
}
}
code := resp.Header.Get("x-minio-error-code")
if code != "" {
errResp.Code = code
}
desc := resp.Header.Get("x-minio-error-desc")
if desc != "" {
errResp.Message = strings.Trim(desc, `"`)
}
// Save hostID, requestID and region information
// from headers if not available through error XML.
if errResp.RequestID == "" {
errResp.RequestID = resp.Header.Get("x-amz-request-id")
}
if errResp.HostID == "" {
errResp.HostID = resp.Header.Get("x-amz-id-2")
}
if errResp.Region == "" {
errResp.Region = resp.Header.Get("x-amz-bucket-region")
}
if errResp.Code == InvalidRegion && errResp.Region != "" {
errResp.Message = fmt.Sprintf("Region does not match, expecting region %s.", errResp.Region)
}
return errResp
}
// errTransferAccelerationBucket - bucket name is invalid to be used with transfer acceleration.
func errTransferAccelerationBucket(bucketName string) error {
msg := "The name of the bucket used for Transfer Acceleration must be DNS-compliant and must not contain periods .."
return ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: InvalidArgument,
Message: msg,
BucketName: bucketName,
}
}
// errEntityTooLarge - Input size is larger than supported maximum.
func errEntityTooLarge(totalSize, maxObjectSize int64, bucketName, objectName string) error {
msg := fmt.Sprintf("Your proposed upload size %d exceeds the maximum allowed object size %d for single PUT operation.", totalSize, maxObjectSize)
return ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: EntityTooLarge,
Message: msg,
BucketName: bucketName,
Key: objectName,
}
}
// errEntityTooSmall - Input size is smaller than supported minimum.
func errEntityTooSmall(totalSize int64, bucketName, objectName string) error {
msg := fmt.Sprintf("Your proposed upload size %d is below the minimum allowed object size 0B for single PUT operation.", totalSize)
return ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: EntityTooSmall,
Message: msg,
BucketName: bucketName,
Key: objectName,
}
}
// errUnexpectedEOF - Unexpected end of file reached.
func errUnexpectedEOF(totalRead, totalSize int64, bucketName, objectName string) error {
msg := fmt.Sprintf("Data read %d is not equal to the size %d of the input Reader.", totalRead, totalSize)
return ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: UnexpectedEOF,
Message: msg,
BucketName: bucketName,
Key: objectName,
}
}
// errInvalidArgument - Invalid argument response.
func errInvalidArgument(message string) error {
return ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: InvalidArgument,
Message: message,
RequestID: "minio",
}
}
// errAPINotSupported - API not supported response
// The specified API call is not supported
func errAPINotSupported(message string) error {
return ErrorResponse{
StatusCode: http.StatusNotImplemented,
Code: APINotSupported,
Message: message,
RequestID: "minio",
}
}
+152
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2018 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"encoding/xml"
"net/http"
"net/url"
)
// Grantee represents the person being granted permissions.
type Grantee struct {
XMLName xml.Name `xml:"Grantee"`
ID string `xml:"ID"`
DisplayName string `xml:"DisplayName"`
URI string `xml:"URI"`
}
// Grant holds grant information
type Grant struct {
XMLName xml.Name `xml:"Grant"`
Grantee Grantee
Permission string `xml:"Permission"`
}
// AccessControlList contains the set of grantees and the permissions assigned to each grantee.
type AccessControlList struct {
XMLName xml.Name `xml:"AccessControlList"`
Grant []Grant
Permission string `xml:"Permission"`
}
type accessControlPolicy struct {
XMLName xml.Name `xml:"AccessControlPolicy"`
Owner Owner
AccessControlList AccessControlList
}
// GetObjectACL get object ACLs
func (c *Client) GetObjectACL(ctx context.Context, bucketName, objectName string) (*ObjectInfo, error) {
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: url.Values{
"acl": []string{""},
},
})
if err != nil {
return nil, err
}
defer closeResponse(resp)
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucketName, objectName)
}
res := &accessControlPolicy{}
if err := xmlDecoder(resp.Body, res); err != nil {
return nil, err
}
objInfo, err := c.StatObject(ctx, bucketName, objectName, StatObjectOptions{})
if err != nil {
return nil, err
}
objInfo.Owner.DisplayName = res.Owner.DisplayName
objInfo.Owner.ID = res.Owner.ID
objInfo.Grant = append(objInfo.Grant, res.AccessControlList.Grant...)
cannedACL := getCannedACL(res)
if cannedACL != "" {
objInfo.Metadata.Add("X-Amz-Acl", cannedACL)
return &objInfo, nil
}
grantACL := getAmzGrantACL(res)
for k, v := range grantACL {
objInfo.Metadata[k] = v
}
return &objInfo, nil
}
func getCannedACL(aCPolicy *accessControlPolicy) string {
grants := aCPolicy.AccessControlList.Grant
switch {
case len(grants) == 1:
if grants[0].Grantee.URI == "" && grants[0].Permission == "FULL_CONTROL" {
return "private"
}
case len(grants) == 2:
for _, g := range grants {
if g.Grantee.URI == "http://acs.amazonaws.com/groups/global/AuthenticatedUsers" && g.Permission == "READ" {
return "authenticated-read"
}
if g.Grantee.URI == "http://acs.amazonaws.com/groups/global/AllUsers" && g.Permission == "READ" {
return "public-read"
}
if g.Permission == "READ" && g.Grantee.ID == aCPolicy.Owner.ID {
return "bucket-owner-read"
}
}
case len(grants) == 3:
for _, g := range grants {
if g.Grantee.URI == "http://acs.amazonaws.com/groups/global/AllUsers" && g.Permission == "WRITE" {
return "public-read-write"
}
}
}
return ""
}
func getAmzGrantACL(aCPolicy *accessControlPolicy) map[string][]string {
grants := aCPolicy.AccessControlList.Grant
res := map[string][]string{}
for _, g := range grants {
switch g.Permission {
case "READ":
res["X-Amz-Grant-Read"] = append(res["X-Amz-Grant-Read"], "id="+g.Grantee.ID)
case "WRITE":
res["X-Amz-Grant-Write"] = append(res["X-Amz-Grant-Write"], "id="+g.Grantee.ID)
case "READ_ACP":
res["X-Amz-Grant-Read-Acp"] = append(res["X-Amz-Grant-Read-Acp"], "id="+g.Grantee.ID)
case "WRITE_ACP":
res["X-Amz-Grant-Write-Acp"] = append(res["X-Amz-Grant-Write-Acp"], "id="+g.Grantee.ID)
case "FULL_CONTROL":
res["X-Amz-Grant-Full-Control"] = append(res["X-Amz-Grant-Full-Control"], "id="+g.Grantee.ID)
}
}
return res
}
+287
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@@ -0,0 +1,287 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"encoding/xml"
"errors"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/minio/minio-go/v7/pkg/encrypt"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// ObjectAttributesOptions are options used for the GetObjectAttributes API
//
// - MaxParts
// How many parts the caller wants to be returned (default: 1000)
//
// - VersionID
// The object version you want to attributes for
//
// - PartNumberMarker
// the listing will start AFTER the part matching PartNumberMarker
//
// - ServerSideEncryption
// The server-side encryption algorithm used when storing this object in Minio
type ObjectAttributesOptions struct {
MaxParts int
VersionID string
PartNumberMarker int
ServerSideEncryption encrypt.ServerSide
}
// ObjectAttributes is the response object returned by the GetObjectAttributes API
//
// - VersionID
// The object version
//
// - LastModified
// The last time the object was modified
//
// - ObjectAttributesResponse
// Contains more information about the object
type ObjectAttributes struct {
VersionID string
LastModified time.Time
ObjectAttributesResponse
}
// ObjectAttributesResponse contains details returned by the GetObjectAttributes API
//
// Noteworthy fields:
//
// - ObjectParts.PartsCount
// Contains the total part count for the object (not the current response)
//
// - ObjectParts.PartNumberMarker
// Pagination of parts will begin at (but not include) PartNumberMarker
//
// - ObjectParts.NextPartNumberMarket
// The next PartNumberMarker to be used in order to continue pagination
//
// - ObjectParts.IsTruncated
// Indicates if the last part is included in the request (does not check if parts are missing from the start of the list, ONLY the end)
//
// - ObjectParts.MaxParts
// Reflects the MaxParts used by the caller or the default MaxParts value of the API
type ObjectAttributesResponse struct {
ETag string `xml:",omitempty"`
StorageClass string
ObjectSize int
Checksum struct {
ChecksumCRC32 string `xml:",omitempty"`
ChecksumCRC32C string `xml:",omitempty"`
ChecksumCRC64NVME string `xml:",omitempty"`
ChecksumSHA1 string `xml:",omitempty"`
ChecksumSHA256 string `xml:",omitempty"`
ChecksumMD5 string `xml:",omitempty"`
ChecksumSHA512 string `xml:",omitempty"`
ChecksumXXHash64 string `xml:"ChecksumXXHASH64,omitempty"`
ChecksumXXHash3 string `xml:"ChecksumXXHASH3,omitempty"`
ChecksumXXHash128 string `xml:"ChecksumXXHASH128,omitempty"`
ChecksumType string `xml:",omitempty"`
}
ObjectParts struct {
PartsCount int
PartNumberMarker int
NextPartNumberMarker int
MaxParts int
IsTruncated bool
Parts []*ObjectAttributePart `xml:"Part"`
}
}
// ObjectAttributePart is used by ObjectAttributesResponse to describe an object part
type ObjectAttributePart struct {
ChecksumCRC32 string `xml:",omitempty"`
ChecksumCRC32C string `xml:",omitempty"`
ChecksumCRC64NVME string `xml:",omitempty"`
ChecksumSHA1 string `xml:",omitempty"`
ChecksumSHA256 string `xml:",omitempty"`
ChecksumMD5 string `xml:",omitempty"`
ChecksumSHA512 string `xml:",omitempty"`
ChecksumXXHash64 string `xml:"ChecksumXXHASH64,omitempty"`
ChecksumXXHash3 string `xml:"ChecksumXXHASH3,omitempty"`
ChecksumXXHash128 string `xml:"ChecksumXXHASH128,omitempty"`
PartNumber int
Size int
}
// ChecksumMap returns a map of checksums for the object.
func (o *ObjectAttributesResponse) ChecksumMap() map[string]string {
res := make(map[string]string)
setif := func(typ ChecksumType, value string) {
if value != "" {
res[typ.Key()] = value
}
}
setif(ChecksumCRC32C, o.Checksum.ChecksumCRC32C)
setif(ChecksumCRC32, o.Checksum.ChecksumCRC32)
setif(ChecksumCRC64NVME, o.Checksum.ChecksumCRC64NVME)
setif(ChecksumSHA1, o.Checksum.ChecksumSHA1)
setif(ChecksumSHA256, o.Checksum.ChecksumSHA256)
setif(ChecksumMD5, o.Checksum.ChecksumMD5)
setif(ChecksumSHA512, o.Checksum.ChecksumSHA512)
setif(ChecksumXXHash64, o.Checksum.ChecksumXXHash64)
setif(ChecksumXXHash3, o.Checksum.ChecksumXXHash3)
setif(ChecksumXXHash128, o.Checksum.ChecksumXXHash128)
return res
}
// ChecksumMode returns the checksum mode of the object.
// If unable to determine, returns ChecksumUnknownMode.
func (o *ObjectAttributesResponse) ChecksumMode() ChecksumMode {
t := o.ChecksumType()
if !t.IsSet() {
return ChecksumUnknownMode
}
switch o.Checksum.ChecksumType {
case amzChecksumModeComposite:
return ChecksumCompositeMode
case amzChecksumModeFullObject:
return ChecksumFullObjectMode
case "":
// Likely not supported by the server.
if o.Checksum.ChecksumCRC64NVME != "" || !strings.ContainsRune(o.ETag, '-') {
// Always full object.
return ChecksumFullObjectMode
}
if !t.CanMergeCRC() {
// Only composite possible.
return ChecksumCompositeMode
}
}
return ChecksumUnknownMode
}
// ChecksumType returns the checksum type of the object.
// If none is set, returns ChecksumNone.
func (o *ObjectAttributesResponse) ChecksumType() ChecksumType {
t := ChecksumNone
setif := func(typ ChecksumType, value string) {
if value != "" {
t = typ
}
}
setif(ChecksumCRC32C, o.Checksum.ChecksumCRC32C)
setif(ChecksumCRC32, o.Checksum.ChecksumCRC32)
setif(ChecksumCRC64NVME, o.Checksum.ChecksumCRC64NVME)
setif(ChecksumSHA1, o.Checksum.ChecksumSHA1)
setif(ChecksumSHA256, o.Checksum.ChecksumSHA256)
setif(ChecksumMD5, o.Checksum.ChecksumMD5)
setif(ChecksumSHA512, o.Checksum.ChecksumSHA512)
setif(ChecksumXXHash64, o.Checksum.ChecksumXXHash64)
setif(ChecksumXXHash3, o.Checksum.ChecksumXXHash3)
setif(ChecksumXXHash128, o.Checksum.ChecksumXXHash128)
if t.IsSet() && o.Checksum.ChecksumType == amzChecksumModeFullObject {
t |= ChecksumFullObject
}
return t
}
func (o *ObjectAttributes) parseResponse(resp *http.Response) (err error) {
mod, err := parseRFC7231Time(resp.Header.Get("Last-Modified"))
if err != nil {
return err
}
o.LastModified = mod
o.VersionID = resp.Header.Get(amzVersionID)
response := new(ObjectAttributesResponse)
if err := xml.NewDecoder(resp.Body).Decode(response); err != nil {
return err
}
o.ObjectAttributesResponse = *response
return err
}
// GetObjectAttributes API combines HeadObject and ListParts.
// More details on usage can be found in the documentation for ObjectAttributesOptions{}
func (c *Client) GetObjectAttributes(ctx context.Context, bucketName, objectName string, opts ObjectAttributesOptions) (*ObjectAttributes, error) {
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return nil, err
}
urlValues := make(url.Values)
urlValues.Add("attributes", "")
if opts.VersionID != "" {
urlValues.Add("versionId", opts.VersionID)
}
headers := make(http.Header)
headers.Set(amzObjectAttributes, GetObjectAttributesTags)
if opts.PartNumberMarker > 0 {
headers.Set(amzPartNumberMarker, strconv.Itoa(opts.PartNumberMarker))
}
if opts.MaxParts > 0 {
headers.Set(amzMaxParts, strconv.Itoa(opts.MaxParts))
} else {
headers.Set(amzMaxParts, strconv.Itoa(GetObjectAttributesMaxParts))
}
if opts.ServerSideEncryption != nil {
opts.ServerSideEncryption.Marshal(headers)
}
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
customHeader: headers,
})
if err != nil {
return nil, err
}
defer closeResponse(resp)
hasEtag := resp.Header.Get(ETag)
if hasEtag != "" {
return nil, errors.New("getObjectAttributes is not supported by the current endpoint version")
}
if resp.StatusCode != http.StatusOK {
ER := new(ErrorResponse)
if err := xml.NewDecoder(resp.Body).Decode(ER); err != nil {
return nil, err
}
return nil, *ER
}
OA := new(ObjectAttributes)
err = OA.parseResponse(resp)
if err != nil {
return nil, err
}
return OA, nil
}
+127
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"io"
"os"
"path/filepath"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// FGetObject - download contents of an object to a local file.
// The options can be used to specify the GET request further.
func (c *Client) FGetObject(ctx context.Context, bucketName, objectName, filePath string, opts GetObjectOptions) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return err
}
// Verify if destination already exists.
st, err := os.Stat(filePath)
if err == nil {
// If the destination exists and is a directory.
if st.IsDir() {
return errInvalidArgument("fileName is a directory.")
}
}
// Proceed if file does not exist. return for all other errors.
if err != nil {
if !os.IsNotExist(err) {
return err
}
}
// Extract top level directory.
objectDir, _ := filepath.Split(filePath)
if objectDir != "" {
// Create any missing top level directories.
if err := os.MkdirAll(objectDir, 0o700); err != nil {
return err
}
}
// Gather md5sum.
objectStat, err := c.StatObject(ctx, bucketName, objectName, StatObjectOptions(opts))
if err != nil {
return err
}
// Write to a temporary file "fileName.part.minio" before saving.
filePartPath := filepath.Join(filepath.Dir(filePath), sum256Hex([]byte(filepath.Base(filePath)+objectStat.ETag))+".part.minio")
// If exists, open in append mode. If not create it as a part file.
filePart, err := os.OpenFile(filePartPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o600)
if err != nil {
return err
}
// If we return early with an error, be sure to close and delete
// filePart. If we have an error along the way there is a chance
// that filePart is somehow damaged, and we should discard it.
closeAndRemove := true
defer func() {
if closeAndRemove {
_ = filePart.Close()
_ = os.Remove(filePartPath)
}
}()
// Issue Stat to get the current offset.
st, err = filePart.Stat()
if err != nil {
return err
}
// Initialize get object request headers to set the
// appropriate range offsets to read from.
if st.Size() > 0 {
opts.SetRange(st.Size(), 0)
}
// Seek to current position for incoming reader.
objectReader, objectStat, _, err := c.getObject(ctx, bucketName, objectName, opts)
if err != nil {
return err
}
// Write to the part file.
if _, err = io.CopyN(filePart, objectReader, objectStat.Size); err != nil {
return err
}
// Close the file before rename, this is specifically needed for Windows users.
closeAndRemove = false
if err = filePart.Close(); err != nil {
return err
}
// Safely completed. Now commit by renaming to actual filename.
if err = os.Rename(filePartPath, filePath); err != nil {
return err
}
// Return.
return nil
}
+706
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@@ -0,0 +1,706 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"errors"
"fmt"
"io"
"net/http"
"sync"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// GetObject wrapper function that accepts a request context
func (c *Client) GetObject(ctx context.Context, bucketName, objectName string, opts GetObjectOptions) (*Object, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: InvalidBucketName,
Message: err.Error(),
}
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return nil, ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: XMinioInvalidObjectName,
Message: err.Error(),
}
}
gctx, cancel := context.WithCancel(ctx)
// Detect if snowball is server location we are talking to.
var snowball bool
if location, ok := c.bucketLocCache.Get(bucketName); ok {
snowball = location == "snowball"
}
var (
err error
httpReader io.ReadCloser
objectInfo ObjectInfo
totalRead int
)
// Create request channel.
reqCh := make(chan getRequest)
// Create response channel.
resCh := make(chan getResponse)
// This routine feeds partial object data as and when the caller reads.
go func() {
defer close(resCh)
defer func() {
// Close the http response body before returning.
// This ends the connection with the server.
if httpReader != nil {
httpReader.Close()
}
}()
defer cancel()
// Used to verify if etag of object has changed since last read.
var etag string
for req := range reqCh {
// If this is the first request we may not need to do a getObject request yet.
if req.isFirstReq {
// First request is a Read/ReadAt.
if req.isReadOp {
// Differentiate between wanting the whole object and just a range.
if req.isReadAt {
// If this is a ReadAt request only get the specified range.
// Range is set with respect to the offset and length of the buffer requested.
// Do not set objectInfo from the first readAt request because it will not get
// the whole object.
opts.SetRange(req.Offset, req.Offset+int64(len(req.Buffer))-1)
} else if req.Offset > 0 {
opts.SetRange(req.Offset, 0)
}
httpReader, objectInfo, _, err = c.getObject(gctx, bucketName, objectName, opts)
if err != nil {
resCh <- getResponse{Error: err}
return
}
etag = objectInfo.ETag
// Read at least firstReq.Buffer bytes, if not we have
// reached our EOF.
size, err := readFull(httpReader, req.Buffer)
totalRead += size
if size > 0 && err == io.ErrUnexpectedEOF {
if int64(size) < objectInfo.Size {
// In situations when returned size
// is less than the expected content
// length set by the server, make sure
// we return io.ErrUnexpectedEOF
err = io.ErrUnexpectedEOF
} else {
// If an EOF happens after reading some but not
// all the bytes ReadFull returns ErrUnexpectedEOF
err = io.EOF
}
} else if size == 0 && err == io.EOF && objectInfo.Size > 0 {
// Special cases when server writes more data
// than the content-length, net/http response
// body returns an error, instead of converting
// it to io.EOF - return unexpected EOF.
err = io.ErrUnexpectedEOF
}
// Send back the first response.
resCh <- getResponse{
objectInfo: objectInfo,
Size: size,
Error: err,
didRead: true,
}
} else {
// First request is a Stat or Seek call.
// Only need to run a StatObject until an actual Read or ReadAt request comes through.
// Remove range header if already set, for stat Operations to get original file size.
delete(opts.headers, "Range")
objectInfo, err = c.StatObject(gctx, bucketName, objectName, StatObjectOptions(opts))
if err != nil {
resCh <- getResponse{
Error: err,
}
// Exit the go-routine.
return
}
etag = objectInfo.ETag
// Send back the first response.
resCh <- getResponse{
objectInfo: objectInfo,
}
}
} else if req.settingObjectInfo { // Request is just to get objectInfo.
// Remove range header if already set, for stat Operations to get original file size.
delete(opts.headers, "Range")
// Check whether this is snowball
// if yes do not use If-Match feature
// it doesn't work.
if etag != "" && !snowball {
opts.SetMatchETag(etag)
}
objectInfo, err := c.StatObject(gctx, bucketName, objectName, StatObjectOptions(opts))
if err != nil {
resCh <- getResponse{
Error: err,
}
// Exit the goroutine.
return
}
// Send back the objectInfo.
resCh <- getResponse{
objectInfo: objectInfo,
}
} else {
// Offset changes fetch the new object at an Offset.
// Because the httpReader may not be set by the first
// request if it was a stat or seek it must be checked
// if the object has been read or not to only initialize
// new ones when they haven't been already.
// All readAt requests are new requests.
if req.DidOffsetChange || !req.beenRead {
// Check whether this is snowball
// if yes do not use If-Match feature
// it doesn't work.
if etag != "" && !snowball {
opts.SetMatchETag(etag)
}
if httpReader != nil {
// Close previously opened http reader.
httpReader.Close()
}
// If this request is a readAt only get the specified range.
if req.isReadAt {
// Range is set with respect to the offset and length of the buffer requested.
opts.SetRange(req.Offset, req.Offset+int64(len(req.Buffer))-1)
} else if req.Offset > 0 { // Range is set with respect to the offset.
opts.SetRange(req.Offset, 0)
} else {
// Remove range header if already set
delete(opts.headers, "Range")
}
httpReader, objectInfo, _, err = c.getObject(gctx, bucketName, objectName, opts)
if err != nil {
resCh <- getResponse{
Error: err,
}
return
}
totalRead = 0
}
// Read at least req.Buffer bytes, if not we have
// reached our EOF.
size, err := readFull(httpReader, req.Buffer)
totalRead += size
if size > 0 && err == io.ErrUnexpectedEOF {
if int64(totalRead) < objectInfo.Size {
// In situations when returned size
// is less than the expected content
// length set by the server, make sure
// we return io.ErrUnexpectedEOF
err = io.ErrUnexpectedEOF
} else {
// If an EOF happens after reading some but not
// all the bytes ReadFull returns ErrUnexpectedEOF
err = io.EOF
}
} else if size == 0 && err == io.EOF && objectInfo.Size > 0 {
// Special cases when server writes more data
// than the content-length, net/http response
// body returns an error, instead of converting
// it to io.EOF - return unexpected EOF.
err = io.ErrUnexpectedEOF
}
// Reply back how much was read.
resCh <- getResponse{
Size: size,
Error: err,
didRead: true,
objectInfo: objectInfo,
}
}
}
}()
// Create a newObject through the information sent back by reqCh.
return newObject(gctx, cancel, reqCh, resCh), nil
}
// get request message container to communicate with internal
// go-routine.
type getRequest struct {
Buffer []byte
Offset int64 // readAt offset.
DidOffsetChange bool // Tracks the offset changes for Seek requests.
beenRead bool // Determines if this is the first time an object is being read.
isReadAt bool // Determines if this request is a request to a specific range
isReadOp bool // Determines if this request is a Read or Read/At request.
isFirstReq bool // Determines if this request is the first time an object is being accessed.
settingObjectInfo bool // Determines if this request is to set the objectInfo of an object.
}
// get response message container to reply back for the request.
type getResponse struct {
Size int
Error error
didRead bool // Lets subsequent calls know whether or not httpReader has been initiated.
objectInfo ObjectInfo // Used for the first request.
}
// Object represents an open object. It implements
// Reader, ReaderAt, Seeker, Closer for a HTTP stream.
type Object struct {
// Mutex.
mutex *sync.Mutex
// User allocated and defined.
reqCh chan<- getRequest
resCh <-chan getResponse
ctx context.Context
cancel context.CancelFunc
currOffset int64
objectInfo ObjectInfo
// Ask lower level to initiate data fetching based on currOffset
seekData bool
// Keeps track of closed call.
isClosed bool
// Keeps track of if this is the first call.
isStarted bool
// Previous error saved for future calls.
prevErr error
// Keeps track of if this object has been read yet.
beenRead bool
// Keeps track of if objectInfo has been set yet.
objectInfoSet bool
}
// doGetRequest - sends and blocks on the firstReqCh and reqCh of an object.
// Returns back the size of the buffer read, if anything was read, as well
// as any error encountered. For all first requests sent on the object
// it is also responsible for sending back the objectInfo.
func (o *Object) doGetRequest(request getRequest) (getResponse, error) {
select {
case <-o.ctx.Done():
return getResponse{}, o.ctx.Err()
case o.reqCh <- request:
}
response := <-o.resCh
// Return any error to the top level.
if response.Error != nil && response.Error != io.EOF {
return response, response.Error
}
// This was the first request.
if !o.isStarted {
// The object has been operated on.
o.isStarted = true
}
// Set the objectInfo if the request was not readAt
// and it hasn't been set before.
if !o.objectInfoSet && !request.isReadAt {
o.objectInfo = response.objectInfo
o.objectInfoSet = true
}
// Set beenRead only if it has not been set before.
if !o.beenRead {
o.beenRead = response.didRead
}
// Data are ready on the wire, no need to reinitiate connection in lower level
o.seekData = false
return response, response.Error
}
// setOffset - handles the setting of offsets for
// Read/ReadAt/Seek requests.
func (o *Object) setOffset(bytesRead int64) error {
// Update the currentOffset.
o.currOffset += bytesRead
if o.objectInfo.Size > -1 && o.currOffset >= o.objectInfo.Size {
return io.EOF
}
return nil
}
// Read reads up to len(b) bytes into b. It returns the number of
// bytes read (0 <= n <= len(b)) and any error encountered. Returns
// io.EOF upon end of file.
func (o *Object) Read(b []byte) (n int, err error) {
if o == nil {
return 0, errInvalidArgument("Object is nil")
}
// Locking.
o.mutex.Lock()
defer o.mutex.Unlock()
// prevErr is previous error saved from previous operation.
if o.prevErr != nil || o.isClosed {
return 0, o.prevErr
}
// Create a new request.
readReq := getRequest{
isReadOp: true,
beenRead: o.beenRead,
Buffer: b,
}
// Alert that this is the first request.
if !o.isStarted {
readReq.isFirstReq = true
}
// Ask to establish a new data fetch routine based on seekData flag
readReq.DidOffsetChange = o.seekData
readReq.Offset = o.currOffset
// Send and receive from the first request.
response, err := o.doGetRequest(readReq)
if err != nil && err != io.EOF {
// Save the error for future calls.
o.prevErr = err
return response.Size, err
}
// Bytes read.
bytesRead := int64(response.Size)
// Set the new offset.
oerr := o.setOffset(bytesRead)
if oerr != nil {
// Save the error for future calls.
o.prevErr = oerr
return response.Size, oerr
}
// Return the response.
return response.Size, err
}
// Stat returns the ObjectInfo structure describing Object.
func (o *Object) Stat() (ObjectInfo, error) {
if o == nil {
return ObjectInfo{}, errInvalidArgument("Object is nil")
}
// Locking.
o.mutex.Lock()
defer o.mutex.Unlock()
if o.prevErr != nil && o.prevErr != io.EOF || o.isClosed {
return ObjectInfo{}, o.prevErr
}
// This is the first request.
if !o.isStarted || !o.objectInfoSet {
// Send the request and get the response.
_, err := o.doGetRequest(getRequest{
isFirstReq: !o.isStarted,
settingObjectInfo: !o.objectInfoSet,
})
if err != nil {
o.prevErr = err
return ObjectInfo{}, err
}
}
return o.objectInfo, nil
}
// ReadAt reads len(b) bytes from the File starting at byte offset
// off. It returns the number of bytes read and the error, if any.
// ReadAt always returns a non-nil error when n < len(b). At end of
// file, that error is io.EOF.
func (o *Object) ReadAt(b []byte, offset int64) (n int, err error) {
if o == nil {
return 0, errInvalidArgument("Object is nil")
}
// Locking.
o.mutex.Lock()
defer o.mutex.Unlock()
// prevErr is error which was saved in previous operation.
if o.prevErr != nil && o.prevErr != io.EOF || o.isClosed {
return 0, o.prevErr
}
// Save and restore currOffset so ReadAt doesn't affect sequential Read operations.
// Per io.ReaderAt: "ReadAt should not affect nor be affected by the underlying seek offset."
savedOffset := o.currOffset
defer func() {
o.currOffset = savedOffset
o.seekData = true // Force next Read to re-establish stream at correct position
}()
o.currOffset = offset
// Can only compare offsets to size when size has been set.
if o.objectInfoSet {
// If offset is negative than we return io.EOF.
// If offset is greater than or equal to object size we return io.EOF.
if (o.objectInfo.Size > -1 && offset >= o.objectInfo.Size) || offset < 0 {
return 0, io.EOF
}
}
// Create the new readAt request.
readAtReq := getRequest{
isReadOp: true,
isReadAt: true,
DidOffsetChange: true, // Offset always changes.
beenRead: o.beenRead, // Set if this is the first request to try and read.
Offset: offset, // Set the offset.
Buffer: b,
}
// Alert that this is the first request.
if !o.isStarted {
readAtReq.isFirstReq = true
}
// Send and receive from the first request.
response, err := o.doGetRequest(readAtReq)
if err != nil && err != io.EOF {
// Save the error.
o.prevErr = err
return response.Size, err
}
// Bytes read.
bytesRead := int64(response.Size)
// There is no valid objectInfo yet
// to compare against for EOF.
if !o.objectInfoSet {
// Update the currentOffset.
o.currOffset += bytesRead
} else {
// If this was not the first request update
// the offsets and compare against objectInfo
// for EOF.
oerr := o.setOffset(bytesRead)
if oerr != nil {
o.prevErr = oerr
return response.Size, oerr
}
}
return response.Size, err
}
// Seek sets the offset for the next Read or Write to offset,
// interpreted according to whence: 0 means relative to the
// origin of the file, 1 means relative to the current offset,
// and 2 means relative to the end.
// Seek returns the new offset and an error, if any.
//
// Seeking to a negative offset is an error. Seeking to any positive
// offset is legal, subsequent io operations succeed until the
// underlying object is not closed.
func (o *Object) Seek(offset int64, whence int) (n int64, err error) {
if o == nil {
return 0, errInvalidArgument("Object is nil")
}
// Locking.
o.mutex.Lock()
defer o.mutex.Unlock()
// At EOF seeking is legal allow only io.EOF, for any other errors we return.
if o.prevErr != nil && o.prevErr != io.EOF {
return 0, o.prevErr
}
// Negative offset is valid for whence of '2'.
if offset < 0 && whence != 2 {
return 0, errInvalidArgument(fmt.Sprintf("Negative position not allowed for %d", whence))
}
// This is the first request. So before anything else
// get the ObjectInfo.
if !o.isStarted || !o.objectInfoSet {
// Create the new Seek request.
seekReq := getRequest{
isReadOp: false,
Offset: offset,
isFirstReq: true,
}
// Send and receive from the seek request.
_, err := o.doGetRequest(seekReq)
if err != nil {
// Save the error.
o.prevErr = err
return 0, err
}
}
newOffset := o.currOffset
// Switch through whence.
switch whence {
default:
return 0, errInvalidArgument(fmt.Sprintf("Invalid whence %d", whence))
case 0:
if o.objectInfo.Size > -1 && offset > o.objectInfo.Size {
return 0, io.EOF
}
newOffset = offset
case 1:
if o.objectInfo.Size > -1 && o.currOffset+offset > o.objectInfo.Size {
return 0, io.EOF
}
newOffset += offset
case 2:
// If we don't know the object size return an error for io.SeekEnd
if o.objectInfo.Size < 0 {
return 0, errInvalidArgument("Whence END is not supported when the object size is unknown")
}
// Seeking to positive offset is valid for whence '2', but
// since we are backing a Reader we have reached 'EOF' if
// offset is positive.
if offset > 0 {
return 0, io.EOF
}
// Seeking to negative position not allowed for whence.
if o.objectInfo.Size+offset < 0 {
return 0, errInvalidArgument(fmt.Sprintf("Seeking at negative offset not allowed for %d", whence))
}
newOffset = o.objectInfo.Size + offset
}
// Reset the saved error since we successfully seeked, let the Read
// and ReadAt decide.
if o.prevErr == io.EOF {
o.prevErr = nil
}
// Ask lower level to fetch again from source when necessary
o.seekData = (newOffset != o.currOffset) || o.seekData
o.currOffset = newOffset
// Return the effective offset.
return o.currOffset, nil
}
// Close - The behavior of Close after the first call returns error
// for subsequent Close() calls.
func (o *Object) Close() (err error) {
if o == nil {
return errInvalidArgument("Object is nil")
}
// Locking.
o.mutex.Lock()
defer o.mutex.Unlock()
// if already closed return an error.
if o.isClosed {
return o.prevErr
}
// Close successfully.
o.cancel()
// Close the request channel to indicate the internal go-routine to exit.
close(o.reqCh)
// Save for future operations.
errMsg := "Object is already closed. Bad file descriptor."
o.prevErr = errors.New(errMsg)
// Save here that we closed done channel successfully.
o.isClosed = true
return nil
}
// newObject instantiates a new *minio.Object*
// ObjectInfo will be set by setObjectInfo
func newObject(ctx context.Context, cancel context.CancelFunc, reqCh chan<- getRequest, resCh <-chan getResponse) *Object {
return &Object{
ctx: ctx,
cancel: cancel,
mutex: &sync.Mutex{},
reqCh: reqCh,
resCh: resCh,
}
}
// getObject - retrieve object from Object Storage.
//
// Additionally this function also takes range arguments to download the specified
// range bytes of an object. Setting offset and length = 0 will download the full object.
//
// For more information about the HTTP Range header.
// go to http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.
func (c *Client) getObject(ctx context.Context, bucketName, objectName string, opts GetObjectOptions) (io.ReadCloser, ObjectInfo, http.Header, error) {
// Validate input arguments.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, ObjectInfo{}, nil, ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: InvalidBucketName,
Message: err.Error(),
}
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return nil, ObjectInfo{}, nil, ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: XMinioInvalidObjectName,
Message: err.Error(),
}
}
// Execute GET on objectName.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: opts.toQueryValues(),
customHeader: opts.Header(),
contentSHA256Hex: emptySHA256Hex,
})
if err != nil {
return nil, ObjectInfo{}, nil, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusPartialContent {
return nil, ObjectInfo{}, nil, httpRespToErrorResponse(resp, bucketName, objectName)
}
}
objectStat, err := ToObjectInfo(bucketName, objectName, resp.Header)
if err != nil {
closeResponse(resp)
return nil, ObjectInfo{}, nil, err
}
// do not close body here, caller will close
return resp.Body, objectStat, resp.Header, nil
}
+203
View File
@@ -0,0 +1,203 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"fmt"
"net/http"
"net/url"
"strconv"
"time"
"github.com/minio/minio-go/v7/pkg/encrypt"
)
// AdvancedGetOptions for internal use by MinIO server - not intended for client use.
type AdvancedGetOptions struct {
ReplicationDeleteMarker bool
IsReplicationReadyForDeleteMarker bool
ReplicationProxyRequest string
}
// GetObjectOptions are used to specify additional headers or options
// during GET requests.
type GetObjectOptions struct {
headers map[string]string
reqParams url.Values
ServerSideEncryption encrypt.ServerSide
VersionID string
PartNumber int
// Include any checksums, if object was uploaded with checksum.
// For multipart objects this is a checksum of part checksums.
// https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
Checksum bool
// To be not used by external applications
Internal AdvancedGetOptions
}
// StatObjectOptions are used to specify additional headers or options
// during GET info/stat requests.
type StatObjectOptions = GetObjectOptions
// Header returns the http.Header representation of the GET options.
func (o GetObjectOptions) Header() http.Header {
headers := make(http.Header, len(o.headers))
for k, v := range o.headers {
headers.Set(k, v)
}
if o.ServerSideEncryption != nil && o.ServerSideEncryption.Type() == encrypt.SSEC {
o.ServerSideEncryption.Marshal(headers)
}
// this header is set for active-active replication scenario where GET/HEAD
// to site A is proxy'd to site B if object/version missing on site A.
if o.Internal.ReplicationProxyRequest != "" {
headers.Set(minIOBucketReplicationProxyRequest, o.Internal.ReplicationProxyRequest)
}
if o.Checksum {
headers.Set("x-amz-checksum-mode", "ENABLED")
}
return headers
}
// Set adds a key value pair to the options. The
// key-value pair will be part of the HTTP GET request
// headers.
func (o *GetObjectOptions) Set(key, value string) {
if o.headers == nil {
o.headers = make(map[string]string)
}
o.headers[http.CanonicalHeaderKey(key)] = value
}
// SetReqParam - set request query string parameter
// supported key: see supportedQueryValues and allowedCustomQueryPrefix.
// If an unsupported key is passed in, it will be ignored and nothing will be done.
func (o *GetObjectOptions) SetReqParam(key, value string) {
if !isCustomQueryValue(key) && !isStandardQueryValue(key) {
// do nothing
return
}
if o.reqParams == nil {
o.reqParams = make(url.Values)
}
o.reqParams.Set(key, value)
}
// AddReqParam - add request query string parameter
// supported key: see supportedQueryValues and allowedCustomQueryPrefix.
// If an unsupported key is passed in, it will be ignored and nothing will be done.
func (o *GetObjectOptions) AddReqParam(key, value string) {
if !isCustomQueryValue(key) && !isStandardQueryValue(key) {
// do nothing
return
}
if o.reqParams == nil {
o.reqParams = make(url.Values)
}
o.reqParams.Add(key, value)
}
// SetMatchETag - set match etag.
func (o *GetObjectOptions) SetMatchETag(etag string) error {
if etag == "" {
return errInvalidArgument("ETag cannot be empty.")
}
o.Set("If-Match", "\""+etag+"\"")
return nil
}
// SetMatchETagExcept - set match etag except.
func (o *GetObjectOptions) SetMatchETagExcept(etag string) error {
if etag == "" {
return errInvalidArgument("ETag cannot be empty.")
}
o.Set("If-None-Match", "\""+etag+"\"")
return nil
}
// SetUnmodified - set unmodified time since.
func (o *GetObjectOptions) SetUnmodified(modTime time.Time) error {
if modTime.IsZero() {
return errInvalidArgument("Modified since cannot be empty.")
}
o.Set("If-Unmodified-Since", modTime.Format(http.TimeFormat))
return nil
}
// SetModified - set modified time since.
func (o *GetObjectOptions) SetModified(modTime time.Time) error {
if modTime.IsZero() {
return errInvalidArgument("Modified since cannot be empty.")
}
o.Set("If-Modified-Since", modTime.Format(http.TimeFormat))
return nil
}
// SetRange - set the start and end offset of the object to be read.
// See https://tools.ietf.org/html/rfc7233#section-3.1 for reference.
func (o *GetObjectOptions) SetRange(start, end int64) error {
switch {
case start == 0 && end < 0:
// Read last '-end' bytes. `bytes=-N`.
o.Set("Range", fmt.Sprintf("bytes=%d", end))
case 0 < start && end == 0:
// Read everything starting from offset
// 'start'. `bytes=N-`.
o.Set("Range", fmt.Sprintf("bytes=%d-", start))
case 0 <= start && start <= end:
// Read everything starting at 'start' till the
// 'end'. `bytes=N-M`
o.Set("Range", fmt.Sprintf("bytes=%d-%d", start, end))
default:
// All other cases such as
// bytes=-3-
// bytes=5-3
// bytes=-2-4
// bytes=-3-0
// bytes=-3--2
// are invalid.
return errInvalidArgument(
fmt.Sprintf(
"Invalid range specified: start=%d end=%d",
start, end))
}
return nil
}
// toQueryValues - Convert the versionId, partNumber, and reqParams in Options to query string parameters.
func (o *GetObjectOptions) toQueryValues() url.Values {
urlValues := make(url.Values)
if o.VersionID != "" {
urlValues.Set("versionId", o.VersionID)
}
if o.PartNumber > 0 {
urlValues.Set("partNumber", strconv.Itoa(o.PartNumber))
}
if o.reqParams != nil {
for key, values := range o.reqParams {
for _, value := range values {
urlValues.Add(key, value)
}
}
}
return urlValues
}
+332
View File
@@ -0,0 +1,332 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2025 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"encoding/json"
"io"
"iter"
"net/http"
"net/url"
"strings"
"time"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// This file contains the inventory API extension for MinIO server. It is not
// compatible with AWS S3.
func makeInventoryReqMetadata(bucket string, urlParams ...string) requestMetadata {
urlValues := make(url.Values)
urlValues.Set("minio-inventory", "")
// If an odd number of parameters is given, we skip the last pair to avoid
// an out of bounds access.
for i := 0; i+1 < len(urlParams); i += 2 {
urlValues.Set(urlParams[i], urlParams[i+1])
}
return requestMetadata{
bucketName: bucket,
queryValues: urlValues,
}
}
// GenerateInventoryConfigYAML generates a YAML template for an inventory configuration.
// This is a MinIO-specific API and is not compatible with AWS S3.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucket: Name of the bucket
// - id: Unique identifier for the inventory configuration
//
// Returns a YAML template string that can be customized and used with PutBucketInventoryConfiguration.
func (c *Client) GenerateInventoryConfigYAML(ctx context.Context, bucket, id string) (string, error) {
if err := s3utils.CheckValidBucketName(bucket); err != nil {
return "", err
}
if id == "" {
return "", errInvalidArgument("inventory ID cannot be empty")
}
reqMeta := makeInventoryReqMetadata(bucket, "generate", "", "id", id)
resp, err := c.executeMethod(ctx, http.MethodGet, reqMeta)
defer closeResponse(resp)
if err != nil {
return "", err
}
if resp.StatusCode != http.StatusOK {
return "", httpRespToErrorResponse(resp, bucket, "")
}
buf := new(strings.Builder)
_, err = io.Copy(buf, resp.Body)
return buf.String(), err
}
// inventoryPutConfigOpts is a placeholder for future options that may be added.
type inventoryPutConfigOpts struct{}
// InventoryPutConfigOption is to allow for functional options for
// PutBucketInventoryConfiguration. It may be used in the future to customize
// the PutBucketInventoryConfiguration request, but currently does not do
// anything.
type InventoryPutConfigOption func(*inventoryPutConfigOpts)
// PutBucketInventoryConfiguration creates or updates an inventory configuration for a bucket.
// This is a MinIO-specific API and is not compatible with AWS S3.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucket: Name of the bucket
// - id: Unique identifier for the inventory configuration
// - yamlDef: YAML definition of the inventory configuration
//
// Returns an error if the operation fails, or if bucket name, id, or yamlDef is empty.
func (c *Client) PutBucketInventoryConfiguration(ctx context.Context, bucket string, id string, yamlDef string, _ ...InventoryPutConfigOption) error {
if err := s3utils.CheckValidBucketName(bucket); err != nil {
return err
}
if id == "" {
return errInvalidArgument("inventory ID cannot be empty")
}
if yamlDef == "" {
return errInvalidArgument("YAML definition cannot be empty")
}
reqMeta := makeInventoryReqMetadata(bucket, "id", id)
reqMeta.contentBody = strings.NewReader(yamlDef)
reqMeta.contentLength = int64(len(yamlDef))
reqMeta.contentMD5Base64 = sumMD5Base64([]byte(yamlDef))
resp, err := c.executeMethod(ctx, http.MethodPut, reqMeta)
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucket, "")
}
return nil
}
// GetBucketInventoryConfiguration retrieves the inventory configuration for a bucket.
// This is a MinIO-specific API and is not compatible with AWS S3.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucket: Name of the bucket
// - id: Unique identifier for the inventory configuration
//
// Returns the inventory configuration or an error if the operation fails or if the configuration doesn't exist.
func (c *Client) GetBucketInventoryConfiguration(ctx context.Context, bucket, id string) (*InventoryConfiguration, error) {
if err := s3utils.CheckValidBucketName(bucket); err != nil {
return nil, err
}
if id == "" {
return nil, errInvalidArgument("inventory ID cannot be empty")
}
reqMeta := makeInventoryReqMetadata(bucket, "id", id)
resp, err := c.executeMethod(ctx, http.MethodGet, reqMeta)
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucket, "")
}
decoder := json.NewDecoder(resp.Body)
var ic InventoryConfiguration
err = decoder.Decode(&ic)
if err != nil {
return nil, err
}
return &ic, nil
}
// DeleteBucketInventoryConfiguration deletes an inventory configuration from a bucket.
// This is a MinIO-specific API and is not compatible with AWS S3.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucket: Name of the bucket
// - id: Unique identifier for the inventory configuration to delete
//
// Returns an error if the operation fails or if the configuration doesn't exist.
func (c *Client) DeleteBucketInventoryConfiguration(ctx context.Context, bucket, id string) error {
if err := s3utils.CheckValidBucketName(bucket); err != nil {
return err
}
if id == "" {
return errInvalidArgument("inventory ID cannot be empty")
}
reqMeta := makeInventoryReqMetadata(bucket, "id", id)
resp, err := c.executeMethod(ctx, http.MethodDelete, reqMeta)
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucket, "")
}
return nil
}
// InventoryConfiguration represents the inventory configuration
type InventoryConfiguration struct {
Bucket string `json:"bucket"`
ID string `json:"id"`
User string `json:"user"`
YamlDef string `json:"yamlDef,omitempty"`
}
// InventoryListResult represents the result of listing inventory
// configurations.
type InventoryListResult struct {
Items []InventoryConfiguration `json:"items"`
NextContinuationToken string `json:"nextContinuationToken,omitempty"`
}
// ListBucketInventoryConfigurations lists up to 100 inventory configurations for a bucket.
// This is a MinIO-specific API and is not compatible with AWS S3.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucket: Name of the bucket
// - continuationToken: Token for pagination (empty string for first request)
//
// Returns a list result with configurations and a continuation token for the next page, or an error.
func (c *Client) ListBucketInventoryConfigurations(ctx context.Context, bucket, continuationToken string) (lr *InventoryListResult, err error) {
if err := s3utils.CheckValidBucketName(bucket); err != nil {
return nil, err
}
reqMeta := makeInventoryReqMetadata(bucket, "continuation-token", continuationToken)
resp, err := c.executeMethod(ctx, http.MethodGet, reqMeta)
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucket, "")
}
decoder := json.NewDecoder(resp.Body)
err = decoder.Decode(&lr)
if err != nil {
return nil, err
}
return lr, nil
}
// ListBucketInventoryConfigurationsIterator returns an iterator that lists all inventory configurations
// for a bucket. This is a MinIO-specific API and is not compatible with AWS S3.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucket: Name of the bucket
//
// Returns an iterator that yields InventoryConfiguration values and errors. The iterator automatically
// handles pagination and fetches all configurations.
func (c *Client) ListBucketInventoryConfigurationsIterator(ctx context.Context, bucket string) iter.Seq2[InventoryConfiguration, error] {
return func(yield func(InventoryConfiguration, error) bool) {
if err := s3utils.CheckValidBucketName(bucket); err != nil {
yield(InventoryConfiguration{}, err)
return
}
var continuationToken string
for {
listResult, err := c.ListBucketInventoryConfigurations(ctx, bucket, continuationToken)
if err != nil {
yield(InventoryConfiguration{}, err)
return
}
for _, item := range listResult.Items {
if !yield(item, nil) {
return
}
}
if listResult.NextContinuationToken == "" {
return
}
continuationToken = listResult.NextContinuationToken
}
}
}
// InventoryJobStatus represents the status of an inventory job.
type InventoryJobStatus struct {
Bucket string `json:"bucket"`
ID string `json:"id"`
User string `json:"user"`
AccessKey string `json:"accessKey"`
Schedule string `json:"schedule"`
State string `json:"state"`
NextScheduledTime time.Time `json:"nextScheduledTime,omitempty"`
StartTime time.Time `json:"startTime,omitempty"`
EndTime time.Time `json:"endTime,omitempty"`
LastUpdate time.Time `json:"lastUpdate,omitempty"`
Scanned string `json:"scanned,omitempty"`
Matched string `json:"matched,omitempty"`
ScannedCount uint64 `json:"scannedCount,omitempty"`
MatchedCount uint64 `json:"matchedCount,omitempty"`
RecordsWritten uint64 `json:"recordsWritten,omitempty"`
OutputFilesCount uint64 `json:"outputFilesCount,omitempty"`
ExecutionTime string `json:"executionTime,omitempty"`
NumStarts uint64 `json:"numStarts,omitempty"`
NumErrors uint64 `json:"numErrors,omitempty"`
NumLockLosses uint64 `json:"numLockLosses,omitempty"`
ManifestPath string `json:"manifestPath,omitempty"`
RetryAttempts uint64 `json:"retryAttempts,omitempty"`
LastFailTime time.Time `json:"lastFailTime,omitempty"`
LastFailErrors []string `json:"lastFailErrors,omitempty"`
}
// GetBucketInventoryJobStatus retrieves the status of an inventory job for a bucket.
// This is a MinIO-specific API and is not compatible with AWS S3.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucket: Name of the bucket
// - id: Unique identifier for the inventory job
//
// Returns the inventory job status including execution state, progress, and error information, or an error if the operation fails.
func (c *Client) GetBucketInventoryJobStatus(ctx context.Context, bucket, id string) (*InventoryJobStatus, error) {
if err := s3utils.CheckValidBucketName(bucket); err != nil {
return nil, err
}
if id == "" {
return nil, errInvalidArgument("inventory ID cannot be empty")
}
reqMeta := makeInventoryReqMetadata(bucket, "id", id, "status", "")
resp, err := c.executeMethod(ctx, http.MethodGet, reqMeta)
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucket, "")
}
decoder := json.NewDecoder(resp.Body)
var jStatus InventoryJobStatus
err = decoder.Decode(&jStatus)
if err != nil {
return nil, err
}
return &jStatus, nil
}
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+193
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"fmt"
"net/http"
"net/url"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// objectLegalHold - object legal hold specified in
// https://docs.aws.amazon.com/AmazonS3/latest/API/archive-RESTObjectPUTLegalHold.html
type objectLegalHold struct {
XMLNS string `xml:"xmlns,attr,omitempty"`
XMLName xml.Name `xml:"LegalHold"`
Status LegalHoldStatus `xml:"Status,omitempty"`
}
// PutObjectLegalHoldOptions represents options specified by user for PutObjectLegalHold call
type PutObjectLegalHoldOptions struct {
VersionID string
Status *LegalHoldStatus
}
// GetObjectLegalHoldOptions represents options specified by user for GetObjectLegalHold call
type GetObjectLegalHoldOptions struct {
VersionID string
}
// LegalHoldStatus - object legal hold status.
type LegalHoldStatus string
const (
// LegalHoldEnabled indicates legal hold is enabled
LegalHoldEnabled LegalHoldStatus = "ON"
// LegalHoldDisabled indicates legal hold is disabled
LegalHoldDisabled LegalHoldStatus = "OFF"
)
func (r LegalHoldStatus) String() string {
return string(r)
}
// IsValid - check whether this legal hold status is valid or not.
func (r LegalHoldStatus) IsValid() bool {
return r == LegalHoldEnabled || r == LegalHoldDisabled
}
func newObjectLegalHold(status *LegalHoldStatus) (*objectLegalHold, error) {
if status == nil {
return nil, fmt.Errorf("Status not set")
}
if !status.IsValid() {
return nil, fmt.Errorf("invalid legal hold status `%v`", status)
}
legalHold := &objectLegalHold{
Status: *status,
}
return legalHold, nil
}
// PutObjectLegalHold sets the legal hold status for an object and specific version.
// Legal hold prevents an object version from being overwritten or deleted, regardless of retention settings.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - objectName: Name of the object
// - opts: Options including Status (LegalHoldEnabled or LegalHoldDisabled) and optional VersionID
//
// Returns an error if the operation fails or if the status is invalid.
func (c *Client) PutObjectLegalHold(ctx context.Context, bucketName, objectName string, opts PutObjectLegalHoldOptions) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("legal-hold", "")
if opts.VersionID != "" {
urlValues.Set("versionId", opts.VersionID)
}
lh, err := newObjectLegalHold(opts.Status)
if err != nil {
return err
}
lhData, err := xml.Marshal(lh)
if err != nil {
return err
}
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentBody: bytes.NewReader(lhData),
contentLength: int64(len(lhData)),
contentMD5Base64: sumMD5Base64(lhData),
contentSHA256Hex: sum256Hex(lhData),
}
// Execute PUT Object Legal Hold.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, objectName)
}
}
return nil
}
// GetObjectLegalHold retrieves the legal hold status for an object and specific version.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - objectName: Name of the object
// - opts: Options including optional VersionID to target a specific version
//
// Returns the legal hold status (LegalHoldEnabled or LegalHoldDisabled) or an error if the operation fails.
func (c *Client) GetObjectLegalHold(ctx context.Context, bucketName, objectName string, opts GetObjectLegalHoldOptions) (status *LegalHoldStatus, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return nil, err
}
urlValues := make(url.Values)
urlValues.Set("legal-hold", "")
if opts.VersionID != "" {
urlValues.Set("versionId", opts.VersionID)
}
// Execute GET on bucket to list objects.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucketName, objectName)
}
}
lh := &objectLegalHold{}
if err = xml.NewDecoder(resp.Body).Decode(lh); err != nil {
return nil, err
}
return &lh.Status, nil
}
+241
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2019 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"fmt"
"net/http"
"net/url"
"time"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// RetentionMode - object retention mode.
type RetentionMode string
const (
// Governance - governance mode.
Governance RetentionMode = "GOVERNANCE"
// Compliance - compliance mode.
Compliance RetentionMode = "COMPLIANCE"
)
func (r RetentionMode) String() string {
return string(r)
}
// IsValid - check whether this retention mode is valid or not.
func (r RetentionMode) IsValid() bool {
return r == Governance || r == Compliance
}
// ValidityUnit - retention validity unit.
type ValidityUnit string
const (
// Days - denotes no. of days.
Days ValidityUnit = "DAYS"
// Years - denotes no. of years.
Years ValidityUnit = "YEARS"
)
func (unit ValidityUnit) String() string {
return string(unit)
}
// IsValid - check whether this validity unit is valid or not.
func (unit ValidityUnit) isValid() bool {
return unit == Days || unit == Years
}
// Retention - bucket level retention configuration.
type Retention struct {
Mode RetentionMode
Validity time.Duration
}
func (r Retention) String() string {
return fmt.Sprintf("{Mode:%v, Validity:%v}", r.Mode, r.Validity)
}
// IsEmpty - returns whether retention is empty or not.
func (r Retention) IsEmpty() bool {
return r.Mode == "" || r.Validity == 0
}
// objectLockConfig - object lock configuration specified in
// https://docs.aws.amazon.com/AmazonS3/latest/API/Type_API_ObjectLockConfiguration.html
type objectLockConfig struct {
XMLNS string `xml:"xmlns,attr,omitempty"`
XMLName xml.Name `xml:"ObjectLockConfiguration"`
ObjectLockEnabled string `xml:"ObjectLockEnabled"`
Rule *struct {
DefaultRetention struct {
Mode RetentionMode `xml:"Mode"`
Days *uint `xml:"Days"`
Years *uint `xml:"Years"`
} `xml:"DefaultRetention"`
} `xml:"Rule,omitempty"`
}
func newObjectLockConfig(mode *RetentionMode, validity *uint, unit *ValidityUnit) (*objectLockConfig, error) {
config := &objectLockConfig{
ObjectLockEnabled: "Enabled",
}
if mode != nil && validity != nil && unit != nil {
if !mode.IsValid() {
return nil, fmt.Errorf("invalid retention mode `%v`", mode)
}
if !unit.isValid() {
return nil, fmt.Errorf("invalid validity unit `%v`", unit)
}
config.Rule = &struct {
DefaultRetention struct {
Mode RetentionMode `xml:"Mode"`
Days *uint `xml:"Days"`
Years *uint `xml:"Years"`
} `xml:"DefaultRetention"`
}{}
config.Rule.DefaultRetention.Mode = *mode
if *unit == Days {
config.Rule.DefaultRetention.Days = validity
} else {
config.Rule.DefaultRetention.Years = validity
}
return config, nil
}
if mode == nil && validity == nil && unit == nil {
return config, nil
}
return nil, fmt.Errorf("all of retention mode, validity and validity unit must be passed")
}
// SetBucketObjectLockConfig sets object lock configuration in given bucket. mode, validity and unit are either all set or all nil.
func (c *Client) SetBucketObjectLockConfig(ctx context.Context, bucketName string, mode *RetentionMode, validity *uint, unit *ValidityUnit) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("object-lock", "")
config, err := newObjectLockConfig(mode, validity, unit)
if err != nil {
return err
}
configData, err := xml.Marshal(config)
if err != nil {
return err
}
reqMetadata := requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(configData),
contentLength: int64(len(configData)),
contentMD5Base64: sumMD5Base64(configData),
contentSHA256Hex: sum256Hex(configData),
}
// Execute PUT bucket object lock configuration.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
}
return nil
}
// GetObjectLockConfig gets object lock configuration of given bucket.
func (c *Client) GetObjectLockConfig(ctx context.Context, bucketName string) (objectLock string, mode *RetentionMode, validity *uint, unit *ValidityUnit, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return "", nil, nil, nil, err
}
urlValues := make(url.Values)
urlValues.Set("object-lock", "")
// Execute GET on bucket to list objects.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return "", nil, nil, nil, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return "", nil, nil, nil, httpRespToErrorResponse(resp, bucketName, "")
}
}
config := &objectLockConfig{}
if err = xml.NewDecoder(resp.Body).Decode(config); err != nil {
return "", nil, nil, nil, err
}
if config.Rule != nil {
mode = &config.Rule.DefaultRetention.Mode
if config.Rule.DefaultRetention.Days != nil {
validity = config.Rule.DefaultRetention.Days
days := Days
unit = &days
} else {
validity = config.Rule.DefaultRetention.Years
years := Years
unit = &years
}
return config.ObjectLockEnabled, mode, validity, unit, nil
}
return config.ObjectLockEnabled, nil, nil, nil, nil
}
// GetBucketObjectLockConfig gets object lock configuration of given bucket.
func (c *Client) GetBucketObjectLockConfig(ctx context.Context, bucketName string) (mode *RetentionMode, validity *uint, unit *ValidityUnit, err error) {
_, mode, validity, unit, err = c.GetObjectLockConfig(ctx, bucketName)
return mode, validity, unit, err
}
// SetObjectLockConfig sets object lock configuration in given bucket. mode, validity and unit are either all set or all nil.
func (c *Client) SetObjectLockConfig(ctx context.Context, bucketName string, mode *RetentionMode, validity *uint, unit *ValidityUnit) error {
return c.SetBucketObjectLockConfig(ctx, bucketName, mode, validity, unit)
}
+182
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2019-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"fmt"
"net/http"
"net/url"
"time"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// objectRetention - object retention specified in
// https://docs.aws.amazon.com/AmazonS3/latest/API/Type_API_ObjectLockConfiguration.html
type objectRetention struct {
XMLNS string `xml:"xmlns,attr,omitempty"`
XMLName xml.Name `xml:"Retention"`
Mode RetentionMode `xml:"Mode,omitempty"`
RetainUntilDate *time.Time `type:"timestamp" timestampFormat:"iso8601" xml:"RetainUntilDate,omitempty"`
}
func newObjectRetention(mode *RetentionMode, date *time.Time) (*objectRetention, error) {
objectRetention := &objectRetention{}
if date != nil && !date.IsZero() {
objectRetention.RetainUntilDate = date
}
if mode != nil {
if !mode.IsValid() {
return nil, fmt.Errorf("invalid retention mode `%v`", mode)
}
objectRetention.Mode = *mode
}
return objectRetention, nil
}
// PutObjectRetentionOptions represents options specified by user for PutObject call
type PutObjectRetentionOptions struct {
GovernanceBypass bool
Mode *RetentionMode
RetainUntilDate *time.Time
VersionID string
}
// PutObjectRetention sets the retention configuration for an object and specific version.
// Object retention prevents an object version from being deleted or overwritten for a specified period.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - objectName: Name of the object
// - opts: Options including Mode (GOVERNANCE or COMPLIANCE), RetainUntilDate, optional VersionID, and GovernanceBypass
//
// Returns an error if the operation fails or if the retention settings are invalid.
func (c *Client) PutObjectRetention(ctx context.Context, bucketName, objectName string, opts PutObjectRetentionOptions) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("retention", "")
if opts.VersionID != "" {
urlValues.Set("versionId", opts.VersionID)
}
retention, err := newObjectRetention(opts.Mode, opts.RetainUntilDate)
if err != nil {
return err
}
retentionData, err := xml.Marshal(retention)
if err != nil {
return err
}
// Build headers.
headers := make(http.Header)
if opts.GovernanceBypass {
// Set the bypass goverenance retention header
headers.Set(amzBypassGovernance, "true")
}
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentBody: bytes.NewReader(retentionData),
contentLength: int64(len(retentionData)),
contentMD5Base64: sumMD5Base64(retentionData),
contentSHA256Hex: sum256Hex(retentionData),
customHeader: headers,
}
// Execute PUT Object Retention.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, objectName)
}
}
return nil
}
// GetObjectRetention retrieves the retention configuration for an object and specific version.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - objectName: Name of the object
// - versionID: Optional version ID to target a specific version (empty string for current version)
//
// Returns the retention mode (GOVERNANCE or COMPLIANCE), retain-until date, and any error.
func (c *Client) GetObjectRetention(ctx context.Context, bucketName, objectName, versionID string) (mode *RetentionMode, retainUntilDate *time.Time, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, nil, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return nil, nil, err
}
urlValues := make(url.Values)
urlValues.Set("retention", "")
if versionID != "" {
urlValues.Set("versionId", versionID)
}
// Execute GET on bucket to list objects.
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return nil, nil, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return nil, nil, httpRespToErrorResponse(resp, bucketName, objectName)
}
}
retention := &objectRetention{}
if err = xml.NewDecoder(resp.Body).Decode(retention); err != nil {
return nil, nil, err
}
return &retention.Mode, retention.RetainUntilDate, nil
}
+202
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"net/http"
"net/url"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/tags"
)
// PutObjectTaggingOptions holds an object version id
// to update tag(s) of a specific object version
type PutObjectTaggingOptions struct {
VersionID string
Internal AdvancedObjectTaggingOptions
}
// AdvancedObjectTaggingOptions for internal use by MinIO server - not intended for client use.
type AdvancedObjectTaggingOptions struct {
ReplicationProxyRequest string
}
// PutObjectTagging replaces or creates object tag(s) and can target a specific object version
// in a versioned bucket.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - objectName: Name of the object
// - otags: Tags to apply to the object
// - opts: Options including VersionID to target a specific version
//
// Returns an error if the operation fails.
func (c *Client) PutObjectTagging(ctx context.Context, bucketName, objectName string, otags *tags.Tags, opts PutObjectTaggingOptions) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("tagging", "")
if opts.VersionID != "" {
urlValues.Set("versionId", opts.VersionID)
}
headers := make(http.Header, 0)
if opts.Internal.ReplicationProxyRequest != "" {
headers.Set(minIOBucketReplicationProxyRequest, opts.Internal.ReplicationProxyRequest)
}
reqBytes, err := xml.Marshal(otags)
if err != nil {
return err
}
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentBody: bytes.NewReader(reqBytes),
contentLength: int64(len(reqBytes)),
contentMD5Base64: sumMD5Base64(reqBytes),
customHeader: headers,
}
// Execute PUT to set a object tagging.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, objectName)
}
}
return nil
}
// GetObjectTaggingOptions holds the object version ID
// to fetch the tagging key/value pairs
type GetObjectTaggingOptions struct {
VersionID string
Internal AdvancedObjectTaggingOptions
}
// GetObjectTagging retrieves object tag(s) with options to target a specific object version
// in a versioned bucket.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - objectName: Name of the object
// - opts: Options including VersionID to target a specific version
//
// Returns the object's tags or an error if the operation fails.
func (c *Client) GetObjectTagging(ctx context.Context, bucketName, objectName string, opts GetObjectTaggingOptions) (*tags.Tags, error) {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("tagging", "")
if opts.VersionID != "" {
urlValues.Set("versionId", opts.VersionID)
}
headers := make(http.Header, 0)
if opts.Internal.ReplicationProxyRequest != "" {
headers.Set(minIOBucketReplicationProxyRequest, opts.Internal.ReplicationProxyRequest)
}
// Execute GET on object to get object tag(s)
resp, err := c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
customHeader: headers,
})
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucketName, objectName)
}
}
return tags.ParseObjectXML(resp.Body)
}
// RemoveObjectTaggingOptions holds the version id of the object to remove
type RemoveObjectTaggingOptions struct {
VersionID string
Internal AdvancedObjectTaggingOptions
}
// RemoveObjectTagging removes object tag(s) with options to target a specific object version
// in a versioned bucket.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - objectName: Name of the object
// - opts: Options including VersionID to target a specific version
//
// Returns an error if the operation fails.
func (c *Client) RemoveObjectTagging(ctx context.Context, bucketName, objectName string, opts RemoveObjectTaggingOptions) error {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("tagging", "")
if opts.VersionID != "" {
urlValues.Set("versionId", opts.VersionID)
}
headers := make(http.Header, 0)
if opts.Internal.ReplicationProxyRequest != "" {
headers.Set(minIOBucketReplicationProxyRequest, opts.Internal.ReplicationProxyRequest)
}
// Execute DELETE on object to remove object tag(s)
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
customHeader: headers,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
// S3 returns "204 No content" after Object tag deletion.
if resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, objectName)
}
}
return err
}
+228
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"errors"
"net/http"
"net/url"
"time"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/signer"
)
// presignURL - Returns a presigned URL for an input 'method'.
// Expires maximum is 7days - ie. 604800 and minimum is 1.
func (c *Client) presignURL(ctx context.Context, method, bucketName, objectName string, expires time.Duration, reqParams url.Values, extraHeaders http.Header) (u *url.URL, err error) {
// Input validation.
if method == "" {
return nil, errInvalidArgument("method cannot be empty.")
}
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, err
}
if err = isValidExpiry(expires); err != nil {
return nil, err
}
// Convert expires into seconds.
expireSeconds := int64(expires / time.Second)
reqMetadata := requestMetadata{
presignURL: true,
bucketName: bucketName,
objectName: objectName,
expires: expireSeconds,
queryValues: reqParams,
extraPresignHeader: extraHeaders,
}
// Instantiate a new request.
// Since expires is set newRequest will presign the request.
var req *http.Request
if req, err = c.newRequest(ctx, method, reqMetadata); err != nil {
return nil, err
}
return req.URL, nil
}
// PresignedGetObject - Returns a presigned URL to access an object
// data without credentials. URL can have a maximum expiry of
// upto 7days or a minimum of 1sec. Additionally you can override
// a set of response headers using the query parameters.
func (c *Client) PresignedGetObject(ctx context.Context, bucketName, objectName string, expires time.Duration, reqParams url.Values) (u *url.URL, err error) {
if err = s3utils.CheckValidObjectName(objectName); err != nil {
return nil, err
}
return c.presignURL(ctx, http.MethodGet, bucketName, objectName, expires, reqParams, nil)
}
// PresignedHeadObject - Returns a presigned URL to access
// object metadata without credentials. URL can have a maximum expiry
// of upto 7days or a minimum of 1sec. Additionally you can override
// a set of response headers using the query parameters.
func (c *Client) PresignedHeadObject(ctx context.Context, bucketName, objectName string, expires time.Duration, reqParams url.Values) (u *url.URL, err error) {
if err = s3utils.CheckValidObjectName(objectName); err != nil {
return nil, err
}
return c.presignURL(ctx, http.MethodHead, bucketName, objectName, expires, reqParams, nil)
}
// PresignedPutObject - Returns a presigned URL to upload an object
// without credentials. URL can have a maximum expiry of upto 7days
// or a minimum of 1sec.
func (c *Client) PresignedPutObject(ctx context.Context, bucketName, objectName string, expires time.Duration) (u *url.URL, err error) {
if err = s3utils.CheckValidObjectName(objectName); err != nil {
return nil, err
}
return c.presignURL(ctx, http.MethodPut, bucketName, objectName, expires, nil, nil)
}
// PresignHeader - similar to Presign() but allows including HTTP headers that
// will be used to build the signature. The request using the resulting URL will
// need to have the exact same headers to be added for signature validation to
// pass.
//
// FIXME: The extra header parameter should be included in Presign() in the next
// major version bump, and this function should then be deprecated.
func (c *Client) PresignHeader(ctx context.Context, method, bucketName, objectName string, expires time.Duration, reqParams url.Values, extraHeaders http.Header) (u *url.URL, err error) {
return c.presignURL(ctx, method, bucketName, objectName, expires, reqParams, extraHeaders)
}
// Presign - returns a presigned URL for any http method of your choice along
// with custom request params and extra signed headers. URL can have a maximum
// expiry of upto 7days or a minimum of 1sec.
func (c *Client) Presign(ctx context.Context, method, bucketName, objectName string, expires time.Duration, reqParams url.Values) (u *url.URL, err error) {
return c.presignURL(ctx, method, bucketName, objectName, expires, reqParams, nil)
}
// PresignedPostPolicy - Returns POST urlString, form data to upload an object.
func (c *Client) PresignedPostPolicy(ctx context.Context, p *PostPolicy) (u *url.URL, formData map[string]string, err error) {
// Validate input arguments.
if p.expiration.IsZero() {
return nil, nil, errors.New("Expiration time must be specified")
}
if _, ok := p.formData["key"]; !ok {
return nil, nil, errors.New("object key must be specified")
}
if _, ok := p.formData["bucket"]; !ok {
return nil, nil, errors.New("bucket name must be specified")
}
bucketName := p.formData["bucket"]
// Fetch the bucket location.
location, err := c.getBucketLocation(ctx, bucketName)
if err != nil {
return nil, nil, err
}
isVirtualHost := c.isVirtualHostStyleRequest(*c.endpointURL, bucketName)
u, err = c.makeTargetURL(bucketName, "", location, isVirtualHost, nil)
if err != nil {
return nil, nil, err
}
// Get credentials from the configured credentials provider.
credValues, err := c.credsProvider.GetWithContext(c.CredContext())
if err != nil {
return nil, nil, err
}
var (
signerType = credValues.SignerType
sessionToken = credValues.SessionToken
accessKeyID = credValues.AccessKeyID
secretAccessKey = credValues.SecretAccessKey
)
if signerType.IsAnonymous() {
return nil, nil, errInvalidArgument("Presigned operations are not supported for anonymous credentials")
}
// Keep time.
t := time.Now().UTC()
// For signature version '2' handle here.
if signerType.IsV2() {
policyBase64 := p.base64()
p.formData["policy"] = policyBase64
// For Google endpoint set this value to be 'GoogleAccessId'.
if s3utils.IsGoogleEndpoint(*c.endpointURL) {
p.formData["GoogleAccessId"] = accessKeyID
} else {
// For all other endpoints set this value to be 'AWSAccessKeyId'.
p.formData["AWSAccessKeyId"] = accessKeyID
}
// Sign the policy.
p.formData["signature"] = signer.PostPresignSignatureV2(policyBase64, secretAccessKey)
return u, p.formData, nil
}
// Add date policy.
if err = p.addNewPolicy(policyCondition{
matchType: "eq",
condition: "$x-amz-date",
value: t.Format(iso8601DateFormat),
}); err != nil {
return nil, nil, err
}
// Add algorithm policy.
if err = p.addNewPolicy(policyCondition{
matchType: "eq",
condition: "$x-amz-algorithm",
value: signV4Algorithm,
}); err != nil {
return nil, nil, err
}
// Add a credential policy.
credential := signer.GetCredential(accessKeyID, location, t, signer.ServiceTypeS3)
if err = p.addNewPolicy(policyCondition{
matchType: "eq",
condition: "$x-amz-credential",
value: credential,
}); err != nil {
return nil, nil, err
}
if sessionToken != "" {
if err = p.addNewPolicy(policyCondition{
matchType: "eq",
condition: "$x-amz-security-token",
value: sessionToken,
}); err != nil {
return nil, nil, err
}
}
// Get base64 encoded policy.
policyBase64 := p.base64()
// Fill in the form data.
p.formData["policy"] = policyBase64
p.formData["x-amz-algorithm"] = signV4Algorithm
p.formData["x-amz-credential"] = credential
p.formData["x-amz-date"] = t.Format(iso8601DateFormat)
if sessionToken != "" {
p.formData["x-amz-security-token"] = sessionToken
}
p.formData["x-amz-signature"] = signer.PostPresignSignatureV4(policyBase64, t, secretAccessKey, location)
return u, p.formData, nil
}
+78
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2024 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/json"
"io"
"net/http"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// PromptObject performs language model inference with the prompt and referenced object as context.
// Inference is performed using a Lambda handler that can process the prompt and object.
// Currently, this functionality is limited to certain MinIO servers.
func (c *Client) PromptObject(ctx context.Context, bucketName, objectName, prompt string, opts PromptObjectOptions) (io.ReadCloser, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: InvalidBucketName,
Message: err.Error(),
}
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return nil, ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: XMinioInvalidObjectName,
Message: err.Error(),
}
}
opts.AddLambdaArnToReqParams(opts.LambdaArn)
opts.SetHeader("Content-Type", "application/json")
opts.AddPromptArg("prompt", prompt)
promptReqBytes, err := json.Marshal(opts.PromptArgs)
if err != nil {
return nil, err
}
// Execute POST on bucket/object.
resp, err := c.executeMethod(ctx, http.MethodPost, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: opts.toQueryValues(),
customHeader: opts.Header(),
contentSHA256Hex: sum256Hex(promptReqBytes),
contentBody: bytes.NewReader(promptReqBytes),
contentLength: int64(len(promptReqBytes)),
})
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
defer closeResponse(resp)
return nil, httpRespToErrorResponse(resp, bucketName, objectName)
}
return resp.Body, nil
}
+84
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2024 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"net/http"
"net/url"
)
// PromptObjectOptions provides options to PromptObject call.
// LambdaArn is the ARN of the Prompt Lambda to be invoked.
// PromptArgs is a map of key-value pairs to be passed to the inference action on the Prompt Lambda.
// "prompt" is a reserved key and should not be used as a key in PromptArgs.
type PromptObjectOptions struct {
LambdaArn string
PromptArgs map[string]any
headers map[string]string
reqParams url.Values
}
// Header returns the http.Header representation of the POST options.
func (o PromptObjectOptions) Header() http.Header {
headers := make(http.Header, len(o.headers))
for k, v := range o.headers {
headers.Set(k, v)
}
return headers
}
// AddPromptArg Add a key value pair to the prompt arguments where the key is a string and
// the value is a JSON serializable.
func (o *PromptObjectOptions) AddPromptArg(key string, value any) {
if o.PromptArgs == nil {
o.PromptArgs = make(map[string]any)
}
o.PromptArgs[key] = value
}
// AddLambdaArnToReqParams adds the lambdaArn to the request query string parameters.
func (o *PromptObjectOptions) AddLambdaArnToReqParams(lambdaArn string) {
if o.reqParams == nil {
o.reqParams = make(url.Values)
}
o.reqParams.Add("lambdaArn", lambdaArn)
}
// SetHeader adds a key value pair to the options. The
// key-value pair will be part of the HTTP POST request
// headers.
func (o *PromptObjectOptions) SetHeader(key, value string) {
if o.headers == nil {
o.headers = make(map[string]string)
}
o.headers[http.CanonicalHeaderKey(key)] = value
}
// toQueryValues - Convert the reqParams in Options to query string parameters.
func (o *PromptObjectOptions) toQueryValues() url.Values {
urlValues := make(url.Values)
if o.reqParams != nil {
for key, values := range o.reqParams {
for _, value := range values {
urlValues.Add(key, value)
}
}
}
return urlValues
}
+130
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"net/http"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// Bucket operations
func (c *Client) makeBucket(ctx context.Context, bucketName string, opts MakeBucketOptions) (err error) {
// Validate the input arguments.
if err := s3utils.CheckValidBucketNameStrict(bucketName); err != nil {
return err
}
err = c.doMakeBucket(ctx, bucketName, opts)
if err != nil && (opts.Region == "" || opts.Region == "us-east-1") {
if resp, ok := err.(ErrorResponse); ok && resp.Code == AuthorizationHeaderMalformed && resp.Region != "" {
opts.Region = resp.Region
err = c.doMakeBucket(ctx, bucketName, opts)
}
}
return err
}
func (c *Client) doMakeBucket(ctx context.Context, bucketName string, opts MakeBucketOptions) (err error) {
defer func() {
// Save the location into cache on a successful makeBucket response.
if err == nil {
c.bucketLocCache.Set(bucketName, opts.Region)
}
}()
// If location is empty, treat is a default region 'us-east-1'.
if opts.Region == "" {
opts.Region = "us-east-1"
// For custom region clients, default
// to custom region instead not 'us-east-1'.
if c.region != "" {
opts.Region = c.region
}
}
// PUT bucket request metadata.
reqMetadata := requestMetadata{
bucketName: bucketName,
bucketLocation: opts.Region,
}
headers := make(http.Header)
if opts.ObjectLocking {
headers.Add("x-amz-bucket-object-lock-enabled", "true")
}
if opts.ForceCreate {
headers.Add("x-minio-force-create", "true")
}
reqMetadata.customHeader = headers
// If location is not 'us-east-1' create bucket location config.
if opts.Region != "us-east-1" && opts.Region != "" {
createBucketConfig := createBucketConfiguration{}
createBucketConfig.Location = opts.Region
var createBucketConfigBytes []byte
createBucketConfigBytes, err = xml.Marshal(createBucketConfig)
if err != nil {
return err
}
reqMetadata.contentMD5Base64 = sumMD5Base64(createBucketConfigBytes)
reqMetadata.contentSHA256Hex = sum256Hex(createBucketConfigBytes)
reqMetadata.contentBody = bytes.NewReader(createBucketConfigBytes)
reqMetadata.contentLength = int64(len(createBucketConfigBytes))
}
// Execute PUT to create a new bucket.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
}
// Success.
return nil
}
// MakeBucketOptions holds all options to tweak bucket creation
type MakeBucketOptions struct {
// Bucket location
Region string
// Enable object locking
ObjectLocking bool
// ForceCreate - this is a MinIO specific extension.
ForceCreate bool
}
// MakeBucket creates a new bucket with bucketName with a context to control cancellations and timeouts.
//
// Location is an optional argument, by default all buckets are
// created in US Standard Region.
//
// For Amazon S3 for more supported regions - http://docs.aws.amazon.com/general/latest/gr/rande.html
// For Google Cloud Storage for more supported regions - https://cloud.google.com/storage/docs/bucket-locations
func (c *Client) MakeBucket(ctx context.Context, bucketName string, opts MakeBucketOptions) (err error) {
return c.makeBucket(ctx, bucketName, opts)
}
+151
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"io"
"math"
"os"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
const nullVersionID = "null"
// Verify if reader is *minio.Object
func isObject(reader io.Reader) (ok bool) {
_, ok = reader.(*Object)
return ok
}
// Verify if reader is a generic ReaderAt
func isReadAt(reader io.Reader) (ok bool) {
var v *os.File
v, ok = reader.(*os.File)
if ok {
// Stdin, Stdout and Stderr all have *os.File type
// which happen to also be io.ReaderAt compatible
// we need to add special conditions for them to
// be ignored by this function.
for _, f := range []string{
"/dev/stdin",
"/dev/stdout",
"/dev/stderr",
} {
if f == v.Name() {
ok = false
break
}
}
} else {
_, ok = reader.(io.ReaderAt)
}
return ok
}
// OptimalPartInfo - calculate the optimal part info for a given
// object size.
//
// NOTE: Assumption here is that for any object to be uploaded to any S3 compatible
// object storage it will have the following parameters as constants.
//
// maxPartsCount - 10000
// minPartSize - 16MiB
// maxObjectSize - ~48.83TiB (maxPartSize * maxPartsCount)
func OptimalPartInfo(objectSize int64, configuredPartSize uint64) (totalPartsCount int, partSize, lastPartSize int64, err error) {
// When object size is unknown (-1), default to 5TiB to limit memory usage.
// This results in ~537MiB part sizes. For larger objects (up to ~48.83TiB),
// callers should set configuredPartSize explicitly to control memory usage.
var unknownSize bool
if objectSize == -1 {
unknownSize = true
objectSize = maxMultipartPutObjectSize
}
// object size is larger than supported maximum.
if objectSize > maxObjectSize {
err = errEntityTooLarge(objectSize, maxObjectSize, "", "")
return totalPartsCount, partSize, lastPartSize, err
}
var partSizeFlt float64
if configuredPartSize > 0 {
if int64(configuredPartSize) > objectSize {
err = errEntityTooLarge(int64(configuredPartSize), objectSize, "", "")
return totalPartsCount, partSize, lastPartSize, err
}
if !unknownSize {
if objectSize > (int64(configuredPartSize) * maxPartsCount) {
err = errInvalidArgument("Part size * max_parts(10000) is lesser than input objectSize.")
return totalPartsCount, partSize, lastPartSize, err
}
}
if configuredPartSize < absMinPartSize {
err = errInvalidArgument("Input part size is smaller than allowed minimum of 5MiB.")
return totalPartsCount, partSize, lastPartSize, err
}
if configuredPartSize > maxPartSize {
err = errInvalidArgument("Input part size is bigger than allowed maximum of 5GiB.")
return totalPartsCount, partSize, lastPartSize, err
}
partSizeFlt = float64(configuredPartSize)
if unknownSize {
// If input has unknown size and part size is configured
// keep it to maximum allowed as per 10000 parts.
objectSize = int64(configuredPartSize) * maxPartsCount
}
} else {
configuredPartSize = minPartSize
// Use floats for part size for all calculations to avoid
// overflows during float64 to int64 conversions.
partSizeFlt = float64(objectSize / maxPartsCount)
partSizeFlt = math.Ceil(partSizeFlt/float64(configuredPartSize)) * float64(configuredPartSize)
}
// Total parts count.
totalPartsCount = int(math.Ceil(float64(objectSize) / partSizeFlt))
// Part size.
partSize = int64(partSizeFlt)
// Last part size.
lastPartSize = objectSize - int64(totalPartsCount-1)*partSize
return totalPartsCount, partSize, lastPartSize, nil
}
// getUploadID - fetch upload id if already present for an object name
// or initiate a new request to fetch a new upload id.
func (c *Client) newUploadID(ctx context.Context, bucketName, objectName string, opts PutObjectOptions) (uploadID string, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return "", err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return "", err
}
// Initiate multipart upload for an object.
initMultipartUploadResult, err := c.initiateMultipartUpload(ctx, bucketName, objectName, opts)
if err != nil {
return "", err
}
return initMultipartUploadResult.UploadID, nil
}
+167
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@@ -0,0 +1,167 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2023 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"encoding/json"
"errors"
"io"
"mime/multipart"
"net/http"
"strconv"
"strings"
"time"
"github.com/minio/minio-go/v7/pkg/encrypt"
)
// PutObjectFanOutEntry is per object entry fan-out metadata
type PutObjectFanOutEntry struct {
Key string `json:"key"`
UserMetadata map[string]string `json:"metadata,omitempty"`
UserTags map[string]string `json:"tags,omitempty"`
ContentType string `json:"contentType,omitempty"`
ContentEncoding string `json:"contentEncoding,omitempty"`
ContentDisposition string `json:"contentDisposition,omitempty"`
ContentLanguage string `json:"contentLanguage,omitempty"`
CacheControl string `json:"cacheControl,omitempty"`
Retention RetentionMode `json:"retention,omitempty"`
RetainUntilDate *time.Time `json:"retainUntil,omitempty"`
}
// PutObjectFanOutRequest this is the request structure sent
// to the server to fan-out the stream to multiple objects.
type PutObjectFanOutRequest struct {
Entries []PutObjectFanOutEntry
Checksum Checksum
SSE encrypt.ServerSide
}
// PutObjectFanOutResponse this is the response structure sent
// by the server upon success or failure for each object
// fan-out keys. Additionally, this response carries ETag,
// VersionID and LastModified for each object fan-out.
type PutObjectFanOutResponse struct {
Key string `json:"key"`
ETag string `json:"etag,omitempty"`
VersionID string `json:"versionId,omitempty"`
LastModified *time.Time `json:"lastModified,omitempty"`
Error string `json:"error,omitempty"`
}
// PutObjectFanOut - is a variant of PutObject instead of writing a single object from a single
// stream multiple objects are written, defined via a list of PutObjectFanOutRequests. Each entry
// in PutObjectFanOutRequest carries an object keyname and its relevant metadata if any. `Key` is
// mandatory, rest of the other options in PutObjectFanOutRequest are optional.
func (c *Client) PutObjectFanOut(ctx context.Context, bucket string, fanOutData io.Reader, fanOutReq PutObjectFanOutRequest) ([]PutObjectFanOutResponse, error) {
if len(fanOutReq.Entries) == 0 {
return nil, errInvalidArgument("fan out requests cannot be empty")
}
policy := NewPostPolicy()
policy.SetBucket(bucket)
policy.SetKey(strconv.FormatInt(time.Now().UnixNano(), 16))
// Expires in 15 minutes.
policy.SetExpires(time.Now().UTC().Add(15 * time.Minute))
// Set encryption headers if any.
policy.SetEncryption(fanOutReq.SSE)
// Set checksum headers if any.
err := policy.SetChecksum(fanOutReq.Checksum)
if err != nil {
return nil, err
}
url, formData, err := c.PresignedPostPolicy(ctx, policy)
if err != nil {
return nil, err
}
r, w := io.Pipe()
req, err := http.NewRequest(http.MethodPost, url.String(), r)
if err != nil {
w.Close()
return nil, err
}
var b strings.Builder
enc := json.NewEncoder(&b)
for _, req := range fanOutReq.Entries {
if req.Key == "" {
w.Close()
return nil, errors.New("PutObjectFanOutRequest.Key is mandatory and cannot be empty")
}
if err = enc.Encode(&req); err != nil {
w.Close()
return nil, err
}
}
mwriter := multipart.NewWriter(w)
req.Header.Add("Content-Type", mwriter.FormDataContentType())
go func() {
defer w.Close()
defer mwriter.Close()
for k, v := range formData {
if err := mwriter.WriteField(k, v); err != nil {
return
}
}
if err := mwriter.WriteField("x-minio-fanout-list", b.String()); err != nil {
return
}
mw, err := mwriter.CreateFormFile("file", "fanout-content")
if err != nil {
return
}
if _, err = io.Copy(mw, fanOutData); err != nil {
return
}
}()
resp, err := c.do(req)
if err != nil {
return nil, err
}
defer closeResponse(resp)
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucket, "fanout-content")
}
dec := json.NewDecoder(resp.Body)
fanOutResp := make([]PutObjectFanOutResponse, 0, len(fanOutReq.Entries))
for dec.More() {
var m PutObjectFanOutResponse
if err = dec.Decode(&m); err != nil {
return nil, err
}
fanOutResp = append(fanOutResp, m)
}
return fanOutResp, nil
}
@@ -0,0 +1,64 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"mime"
"os"
"path/filepath"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// FPutObject - Create an object in a bucket, with contents from file at filePath. Allows request cancellation.
func (c *Client) FPutObject(ctx context.Context, bucketName, objectName, filePath string, opts PutObjectOptions) (info UploadInfo, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Open the referenced file.
fileReader, err := os.Open(filePath)
// If any error fail quickly here.
if err != nil {
return UploadInfo{}, err
}
defer fileReader.Close()
// Save the file stat.
fileStat, err := fileReader.Stat()
if err != nil {
return UploadInfo{}, err
}
// Save the file size.
fileSize := fileStat.Size()
// Set contentType based on filepath extension if not given or default
// value of "application/octet-stream" if the extension has no associated type.
if opts.ContentType == "" {
if opts.ContentType = mime.TypeByExtension(filepath.Ext(filePath)); opts.ContentType == "" {
opts.ContentType = "application/octet-stream"
}
}
return c.PutObject(ctx, bucketName, objectName, fileReader, fileSize, opts)
}
+478
View File
@@ -0,0 +1,478 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/base64"
"encoding/hex"
"encoding/xml"
"fmt"
"io"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"github.com/google/uuid"
"github.com/minio/minio-go/v7/pkg/encrypt"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
func (c *Client) putObjectMultipart(ctx context.Context, bucketName, objectName string, reader io.Reader, size int64,
opts PutObjectOptions,
) (info UploadInfo, err error) {
info, err = c.putObjectMultipartNoStream(ctx, bucketName, objectName, reader, opts)
if err != nil {
errResp := ToErrorResponse(err)
// Verify if multipart functionality is not available, if not
// fall back to single PutObject operation.
if errResp.Code == AccessDenied && strings.Contains(errResp.Message, "Access Denied") {
// Verify if size of reader is greater than '5GiB'.
if size > maxSinglePutObjectSize {
return UploadInfo{}, errEntityTooLarge(size, maxSinglePutObjectSize, bucketName, objectName)
}
// Fall back to uploading as single PutObject operation.
return c.putObject(ctx, bucketName, objectName, reader, size, opts)
}
}
return info, err
}
func (c *Client) putObjectMultipartNoStream(ctx context.Context, bucketName, objectName string, reader io.Reader, opts PutObjectOptions) (info UploadInfo, err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err = s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Total data read and written to server. should be equal to
// 'size' at the end of the call.
var totalUploadedSize int64
// Complete multipart upload.
var complMultipartUpload completeMultipartUpload
// Calculate the optimal parts info for a given size.
totalPartsCount, partSize, _, err := OptimalPartInfo(-1, opts.PartSize)
if err != nil {
return UploadInfo{}, err
}
// Choose hash algorithms to be calculated by hashCopyN,
// avoid sha256 with non-v4 signature request or
// HTTPS connection.
hashAlgos, hashSums := c.hashMaterials(opts.SendContentMd5, !opts.DisableContentSha256)
// Initiate a new multipart upload.
uploadID, err := c.newUploadID(ctx, bucketName, objectName, opts)
if err != nil {
return UploadInfo{}, err
}
defer func() {
if err != nil {
c.abortMultipartUpload(ctx, bucketName, objectName, uploadID)
}
}()
// Part number always starts with '1'.
partNumber := 1
// Initialize parts uploaded map.
partsInfo := make(map[int]ObjectPart)
// Create a buffer.
buf := make([]byte, partSize)
// Create checksums
// CRC32C is ~50% faster on AMD64 @ 30GB/s
customHeader := make(http.Header)
crc := opts.AutoChecksum.Hasher()
for partNumber <= totalPartsCount {
length, rErr := readFull(reader, buf)
if rErr == io.EOF && partNumber > 1 {
break
}
if rErr != nil && rErr != io.ErrUnexpectedEOF && rErr != io.EOF {
return UploadInfo{}, rErr
}
// Calculates hash sums while copying partSize bytes into cw.
for k, v := range hashAlgos {
v.Write(buf[:length])
hashSums[k] = v.Sum(nil)
v.Close()
}
// Update progress reader appropriately to the latest offset
// as we read from the source.
rd := newHook(bytes.NewReader(buf[:length]), opts.Progress)
// Checksums..
var (
md5Base64 string
sha256Hex string
)
if hashSums["md5"] != nil {
md5Base64 = base64.StdEncoding.EncodeToString(hashSums["md5"])
}
if hashSums["sha256"] != nil {
sha256Hex = hex.EncodeToString(hashSums["sha256"])
}
if opts.AutoChecksum.IsSet() {
crc.Reset()
crc.Write(buf[:length])
cSum := crc.Sum(nil)
customHeader.Set(opts.AutoChecksum.Key(), base64.StdEncoding.EncodeToString(cSum))
customHeader.Set(amzChecksumAlgo, opts.AutoChecksum.String())
if opts.AutoChecksum.FullObjectRequested() {
customHeader.Set(amzChecksumMode, ChecksumFullObjectMode.String())
}
}
p := uploadPartParams{bucketName: bucketName, objectName: objectName, uploadID: uploadID, reader: rd, partNumber: partNumber, md5Base64: md5Base64, sha256Hex: sha256Hex, size: int64(length), sse: opts.ServerSideEncryption, streamSha256: !opts.DisableContentSha256, customHeader: customHeader}
// Proceed to upload the part.
objPart, uerr := c.uploadPart(ctx, p)
if uerr != nil {
return UploadInfo{}, uerr
}
// Save successfully uploaded part metadata.
partsInfo[partNumber] = objPart
// Save successfully uploaded size.
totalUploadedSize += int64(length)
// Increment part number.
partNumber++
// For unknown size, Read EOF we break away.
// We do not have to upload till totalPartsCount.
if rErr == io.EOF {
break
}
}
// Loop over total uploaded parts to save them in
// Parts array before completing the multipart request.
allParts := make([]ObjectPart, 0, len(partsInfo))
for i := 1; i < partNumber; i++ {
part, ok := partsInfo[i]
if !ok {
return UploadInfo{}, errInvalidArgument(fmt.Sprintf("Missing part number %d", i))
}
allParts = append(allParts, part)
complMultipartUpload.Parts = append(complMultipartUpload.Parts, CompletePart{
ETag: part.ETag,
PartNumber: part.PartNumber,
ChecksumCRC32: part.ChecksumCRC32,
ChecksumCRC32C: part.ChecksumCRC32C,
ChecksumSHA1: part.ChecksumSHA1,
ChecksumSHA256: part.ChecksumSHA256,
ChecksumCRC64NVME: part.ChecksumCRC64NVME,
ChecksumMD5: part.ChecksumMD5,
ChecksumSHA512: part.ChecksumSHA512,
ChecksumXXHash64: part.ChecksumXXHash64,
ChecksumXXHash3: part.ChecksumXXHash3,
ChecksumXXHash128: part.ChecksumXXHash128,
})
}
// Sort all completed parts.
sort.Sort(completedParts(complMultipartUpload.Parts))
opts = PutObjectOptions{
ServerSideEncryption: opts.ServerSideEncryption,
AutoChecksum: opts.AutoChecksum,
}
applyAutoChecksum(&opts, allParts)
uploadInfo, err := c.completeMultipartUpload(ctx, bucketName, objectName, uploadID, complMultipartUpload, opts)
if err != nil {
return UploadInfo{}, err
}
uploadInfo.Size = totalUploadedSize
return uploadInfo, nil
}
// initiateMultipartUpload - Initiates a multipart upload and returns an upload ID.
func (c *Client) initiateMultipartUpload(ctx context.Context, bucketName, objectName string, opts PutObjectOptions) (initiateMultipartUploadResult, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return initiateMultipartUploadResult{}, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return initiateMultipartUploadResult{}, err
}
// Initialize url queries.
urlValues := make(url.Values)
urlValues.Set("uploads", "")
if opts.Internal.SourceVersionID != "" {
if opts.Internal.SourceVersionID != nullVersionID {
if _, err := uuid.Parse(opts.Internal.SourceVersionID); err != nil {
return initiateMultipartUploadResult{}, errInvalidArgument(err.Error())
}
}
urlValues.Set("versionId", opts.Internal.SourceVersionID)
}
// Set ContentType header.
customHeader := opts.Header()
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
customHeader: customHeader,
}
// Execute POST on an objectName to initiate multipart upload.
resp, err := c.executeMethod(ctx, http.MethodPost, reqMetadata)
defer closeResponse(resp)
if err != nil {
return initiateMultipartUploadResult{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return initiateMultipartUploadResult{}, httpRespToErrorResponse(resp, bucketName, objectName)
}
}
// Decode xml for new multipart upload.
initiateMultipartUploadResult := initiateMultipartUploadResult{}
err = xmlDecoder(resp.Body, &initiateMultipartUploadResult)
if err != nil {
return initiateMultipartUploadResult, err
}
return initiateMultipartUploadResult, nil
}
type uploadPartParams struct {
bucketName string
objectName string
uploadID string
reader io.Reader
partNumber int
md5Base64 string
sha256Hex string
size int64
sse encrypt.ServerSide
streamSha256 bool
customHeader http.Header
trailer http.Header
}
// uploadPart - Uploads a part in a multipart upload.
func (c *Client) uploadPart(ctx context.Context, p uploadPartParams) (ObjectPart, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(p.bucketName); err != nil {
return ObjectPart{}, err
}
if err := s3utils.CheckValidObjectName(p.objectName); err != nil {
return ObjectPart{}, err
}
if p.size > maxPartSize {
return ObjectPart{}, errEntityTooLarge(p.size, maxPartSize, p.bucketName, p.objectName)
}
if p.size <= -1 {
return ObjectPart{}, errEntityTooSmall(p.size, p.bucketName, p.objectName)
}
if p.partNumber <= 0 {
return ObjectPart{}, errInvalidArgument("Part number cannot be negative or equal to zero.")
}
if p.uploadID == "" {
return ObjectPart{}, errInvalidArgument("UploadID cannot be empty.")
}
// Get resources properly escaped and lined up before using them in http request.
urlValues := make(url.Values)
// Set part number.
urlValues.Set("partNumber", strconv.Itoa(p.partNumber))
// Set upload id.
urlValues.Set("uploadId", p.uploadID)
// Set encryption headers, if any.
if p.customHeader == nil {
p.customHeader = make(http.Header)
}
// https://docs.aws.amazon.com/AmazonS3/latest/API/mpUploadUploadPart.html
// Server-side encryption is supported by the S3 Multipart Upload actions.
// Unless you are using a customer-provided encryption key, you don't need
// to specify the encryption parameters in each UploadPart request.
if p.sse != nil && p.sse.Type() == encrypt.SSEC {
p.sse.Marshal(p.customHeader)
}
reqMetadata := requestMetadata{
bucketName: p.bucketName,
objectName: p.objectName,
queryValues: urlValues,
customHeader: p.customHeader,
contentBody: p.reader,
contentLength: p.size,
contentMD5Base64: p.md5Base64,
contentSHA256Hex: p.sha256Hex,
streamSha256: p.streamSha256,
trailer: p.trailer,
}
// Execute PUT on each part.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return ObjectPart{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return ObjectPart{}, httpRespToErrorResponse(resp, p.bucketName, p.objectName)
}
}
// Once successfully uploaded, return completed part.
h := resp.Header
objPart := ObjectPart{
ChecksumCRC32: h.Get(ChecksumCRC32.Key()),
ChecksumCRC32C: h.Get(ChecksumCRC32C.Key()),
ChecksumSHA1: h.Get(ChecksumSHA1.Key()),
ChecksumSHA256: h.Get(ChecksumSHA256.Key()),
ChecksumCRC64NVME: h.Get(ChecksumCRC64NVME.Key()),
ChecksumMD5: h.Get(ChecksumMD5.Key()),
ChecksumSHA512: h.Get(ChecksumSHA512.Key()),
ChecksumXXHash64: h.Get(ChecksumXXHash64.Key()),
ChecksumXXHash3: h.Get(ChecksumXXHash3.Key()),
ChecksumXXHash128: h.Get(ChecksumXXHash128.Key()),
}
objPart.Size = p.size
objPart.PartNumber = p.partNumber
// Trim off the odd double quotes from ETag in the beginning and end.
objPart.ETag = trimEtag(h.Get("ETag"))
return objPart, nil
}
// completeMultipartUpload - Completes a multipart upload by assembling previously uploaded parts.
func (c *Client) completeMultipartUpload(ctx context.Context, bucketName, objectName, uploadID string,
complete completeMultipartUpload, opts PutObjectOptions,
) (UploadInfo, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Initialize url queries.
urlValues := make(url.Values)
urlValues.Set("uploadId", uploadID)
// Marshal complete multipart body.
completeMultipartUploadBytes, err := xml.Marshal(complete)
if err != nil {
return UploadInfo{}, err
}
headers := opts.Header()
if s3utils.IsAmazonEndpoint(*c.endpointURL) {
headers.Del(encrypt.SseKmsKeyID) // Remove X-Amz-Server-Side-Encryption-Aws-Kms-Key-Id not supported in CompleteMultipartUpload
headers.Del(encrypt.SseGenericHeader) // Remove X-Amz-Server-Side-Encryption not supported in CompleteMultipartUpload
headers.Del(encrypt.SseEncryptionContext) // Remove X-Amz-Server-Side-Encryption-Context not supported in CompleteMultipartUpload
}
// Instantiate all the complete multipart buffer.
completeMultipartUploadBuffer := bytes.NewReader(completeMultipartUploadBytes)
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentBody: completeMultipartUploadBuffer,
contentLength: int64(len(completeMultipartUploadBytes)),
contentSHA256Hex: sum256Hex(completeMultipartUploadBytes),
customHeader: headers,
expect200OKWithError: true,
}
// Execute POST to complete multipart upload for an objectName.
resp, err := c.executeMethod(ctx, http.MethodPost, reqMetadata)
defer closeResponse(resp)
if err != nil {
return UploadInfo{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return UploadInfo{}, httpRespToErrorResponse(resp, bucketName, objectName)
}
}
// Read resp.Body into a []bytes to parse for Error response inside the body
var b []byte
b, err = io.ReadAll(resp.Body)
if err != nil {
return UploadInfo{}, err
}
// Decode completed multipart upload response on success.
completeMultipartUploadResult := completeMultipartUploadResult{}
err = xmlDecoder(bytes.NewReader(b), &completeMultipartUploadResult)
if err != nil {
// xml parsing failure due to presence an ill-formed xml fragment
return UploadInfo{}, err
} else if completeMultipartUploadResult.Bucket == "" {
// xml's Decode method ignores well-formed xml that don't apply to the type of value supplied.
// In this case, it would leave completeMultipartUploadResult with the corresponding zero-values
// of the members.
// Decode completed multipart upload response on failure
completeMultipartUploadErr := ErrorResponse{}
err = xmlDecoder(bytes.NewReader(b), &completeMultipartUploadErr)
if err != nil {
// xml parsing failure due to presence an ill-formed xml fragment
return UploadInfo{}, err
}
return UploadInfo{}, completeMultipartUploadErr
}
// extract lifecycle expiry date and rule ID
expTime, ruleID := amzExpirationToExpiryDateRuleID(resp.Header.Get(amzExpiration))
return UploadInfo{
Bucket: completeMultipartUploadResult.Bucket,
Key: completeMultipartUploadResult.Key,
ETag: trimEtag(completeMultipartUploadResult.ETag),
VersionID: resp.Header.Get(amzVersionID),
Location: completeMultipartUploadResult.Location,
Expiration: expTime,
ExpirationRuleID: ruleID,
ChecksumSHA256: completeMultipartUploadResult.ChecksumSHA256,
ChecksumSHA1: completeMultipartUploadResult.ChecksumSHA1,
ChecksumCRC32: completeMultipartUploadResult.ChecksumCRC32,
ChecksumCRC32C: completeMultipartUploadResult.ChecksumCRC32C,
ChecksumCRC64NVME: completeMultipartUploadResult.ChecksumCRC64NVME,
ChecksumMD5: completeMultipartUploadResult.ChecksumMD5,
ChecksumSHA512: completeMultipartUploadResult.ChecksumSHA512,
ChecksumXXHash64: completeMultipartUploadResult.ChecksumXXHash64,
ChecksumXXHash3: completeMultipartUploadResult.ChecksumXXHash3,
ChecksumXXHash128: completeMultipartUploadResult.ChecksumXXHash128,
ChecksumMode: completeMultipartUploadResult.ChecksumType,
}, nil
}
+821
View File
@@ -0,0 +1,821 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/base64"
"fmt"
"io"
"net/http"
"net/url"
"sort"
"strings"
"sync"
"github.com/google/uuid"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// putObjectMultipartStream - upload a large object using
// multipart upload and streaming signature for signing payload.
// Comprehensive put object operation involving multipart uploads.
//
// Following code handles these types of readers.
//
// - *minio.Object
// - Any reader which has a method 'ReadAt()'
func (c *Client) putObjectMultipartStream(ctx context.Context, bucketName, objectName string,
reader io.Reader, size int64, opts PutObjectOptions,
) (info UploadInfo, err error) {
if opts.ConcurrentStreamParts && opts.NumThreads > 1 {
info, err = c.putObjectMultipartStreamParallel(ctx, bucketName, objectName, reader, opts)
} else if !isObject(reader) && isReadAt(reader) && !opts.SendContentMd5 {
// Verify if the reader implements ReadAt and it is not a *minio.Object then we will use parallel uploader.
info, err = c.putObjectMultipartStreamFromReadAt(ctx, bucketName, objectName, reader.(io.ReaderAt), size, opts)
} else {
info, err = c.putObjectMultipartStreamOptionalChecksum(ctx, bucketName, objectName, reader, size, opts)
}
if err != nil && s3utils.IsGoogleEndpoint(*c.endpointURL) {
errResp := ToErrorResponse(err)
// Verify if multipart functionality is not available, if not
// fall back to single PutObject operation.
if errResp.Code == AccessDenied && strings.Contains(errResp.Message, "Access Denied") {
// Verify if size of reader is greater than '5GiB'.
if size > maxSinglePutObjectSize {
return UploadInfo{}, errEntityTooLarge(size, maxSinglePutObjectSize, bucketName, objectName)
}
// Fall back to uploading as single PutObject operation.
return c.putObject(ctx, bucketName, objectName, reader, size, opts)
}
}
return info, err
}
// uploadedPartRes - the response received from a part upload.
type uploadedPartRes struct {
Error error // Any error encountered while uploading the part.
PartNum int // Number of the part uploaded.
Size int64 // Size of the part uploaded.
Part ObjectPart
}
type uploadPartReq struct {
PartNum int // Number of the part uploaded.
Part ObjectPart // Size of the part uploaded.
}
// putObjectMultipartFromReadAt - Uploads files bigger than 128MiB.
// Supports all readers which implements io.ReaderAt interface
// (ReadAt method).
//
// NOTE: This function is meant to be used for all readers which
// implement io.ReaderAt which allows us for resuming multipart
// uploads but reading at an offset, which would avoid re-read the
// data which was already uploaded. Internally this function uses
// temporary files for staging all the data, these temporary files are
// cleaned automatically when the caller i.e http client closes the
// stream after uploading all the contents successfully.
func (c *Client) putObjectMultipartStreamFromReadAt(ctx context.Context, bucketName, objectName string,
reader io.ReaderAt, size int64, opts PutObjectOptions,
) (info UploadInfo, err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err = s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Calculate the optimal parts info for a given size.
totalPartsCount, partSize, lastPartSize, err := OptimalPartInfo(size, opts.PartSize)
if err != nil {
return UploadInfo{}, err
}
// Initiate a new multipart upload.
uploadID, err := c.newUploadID(ctx, bucketName, objectName, opts)
if err != nil {
return UploadInfo{}, err
}
withChecksum := c.trailingHeaderSupport
// Aborts the multipart upload in progress, if the
// function returns any error, since we do not resume
// we should purge the parts which have been uploaded
// to relinquish storage space.
defer func() {
if err != nil {
c.abortMultipartUpload(ctx, bucketName, objectName, uploadID)
}
}()
// Total data read and written to server. should be equal to 'size' at the end of the call.
var totalUploadedSize int64
// Complete multipart upload.
var complMultipartUpload completeMultipartUpload
// Declare a channel that sends the next part number to be uploaded.
uploadPartsCh := make(chan uploadPartReq)
// Declare a channel that sends back the response of a part upload.
uploadedPartsCh := make(chan uploadedPartRes)
// Used for readability, lastPartNumber is always totalPartsCount.
lastPartNumber := totalPartsCount
partitionCtx, partitionCancel := context.WithCancel(ctx)
defer partitionCancel()
// Send each part number to the channel to be processed.
go func() {
defer close(uploadPartsCh)
for p := 1; p <= totalPartsCount; p++ {
select {
case <-partitionCtx.Done():
return
case uploadPartsCh <- uploadPartReq{PartNum: p}:
}
}
}()
// Receive each part number from the channel allowing three parallel uploads.
for w := 1; w <= opts.getNumThreads(); w++ {
go func(partSize int64) {
for {
var uploadReq uploadPartReq
var ok bool
select {
case <-ctx.Done():
return
case uploadReq, ok = <-uploadPartsCh:
if !ok {
return
}
// Each worker will draw from the part channel and upload in parallel.
}
// If partNumber was not uploaded we calculate the missing
// part offset and size. For all other part numbers we
// calculate offset based on multiples of partSize.
readOffset := int64(uploadReq.PartNum-1) * partSize
// As a special case if partNumber is lastPartNumber, we
// calculate the offset based on the last part size.
if uploadReq.PartNum == lastPartNumber {
readOffset = size - lastPartSize
partSize = lastPartSize
}
sectionReader := newHook(io.NewSectionReader(reader, readOffset, partSize), opts.Progress)
trailer := make(http.Header, 1)
if withChecksum {
crc := opts.AutoChecksum.Hasher()
trailer.Set(opts.AutoChecksum.Key(), base64.StdEncoding.EncodeToString(crc.Sum(nil)))
sectionReader = newHashReaderWrapper(sectionReader, crc, func(hash []byte) {
trailer.Set(opts.AutoChecksum.Key(), base64.StdEncoding.EncodeToString(hash))
})
}
// Proceed to upload the part.
p := uploadPartParams{
bucketName: bucketName,
objectName: objectName,
uploadID: uploadID,
reader: sectionReader,
partNumber: uploadReq.PartNum,
size: partSize,
sse: opts.ServerSideEncryption,
streamSha256: !opts.DisableContentSha256,
sha256Hex: "",
trailer: trailer,
}
objPart, err := c.uploadPart(ctx, p)
if err != nil {
select {
case <-ctx.Done():
case uploadedPartsCh <- uploadedPartRes{
Error: err,
}:
}
// Exit the goroutine.
return
}
// Save successfully uploaded part metadata.
uploadReq.Part = objPart
// Send successful part info through the channel.
select {
case <-ctx.Done():
case uploadedPartsCh <- uploadedPartRes{
Size: objPart.Size,
PartNum: uploadReq.PartNum,
Part: uploadReq.Part,
}:
}
}
}(partSize)
}
// Gather the responses as they occur and update any
// progress bar.
allParts := make([]ObjectPart, 0, totalPartsCount)
for u := 1; u <= totalPartsCount; u++ {
select {
case <-ctx.Done():
return UploadInfo{}, ctx.Err()
case uploadRes := <-uploadedPartsCh:
if uploadRes.Error != nil {
return UploadInfo{}, uploadRes.Error
}
allParts = append(allParts, uploadRes.Part)
// Update the totalUploadedSize.
totalUploadedSize += uploadRes.Size
complMultipartUpload.Parts = append(complMultipartUpload.Parts, CompletePart{
ETag: uploadRes.Part.ETag,
PartNumber: uploadRes.Part.PartNumber,
ChecksumCRC32: uploadRes.Part.ChecksumCRC32,
ChecksumCRC32C: uploadRes.Part.ChecksumCRC32C,
ChecksumSHA1: uploadRes.Part.ChecksumSHA1,
ChecksumSHA256: uploadRes.Part.ChecksumSHA256,
ChecksumCRC64NVME: uploadRes.Part.ChecksumCRC64NVME,
ChecksumMD5: uploadRes.Part.ChecksumMD5,
ChecksumSHA512: uploadRes.Part.ChecksumSHA512,
ChecksumXXHash64: uploadRes.Part.ChecksumXXHash64,
ChecksumXXHash3: uploadRes.Part.ChecksumXXHash3,
ChecksumXXHash128: uploadRes.Part.ChecksumXXHash128,
})
}
}
// Verify if we uploaded all the data.
if totalUploadedSize != size {
return UploadInfo{}, errUnexpectedEOF(totalUploadedSize, size, bucketName, objectName)
}
// Sort all completed parts.
sort.Sort(completedParts(complMultipartUpload.Parts))
opts = PutObjectOptions{
ServerSideEncryption: opts.ServerSideEncryption,
AutoChecksum: opts.AutoChecksum,
}
if withChecksum {
applyAutoChecksum(&opts, allParts)
}
uploadInfo, err := c.completeMultipartUpload(ctx, bucketName, objectName, uploadID, complMultipartUpload, opts)
if err != nil {
return UploadInfo{}, err
}
uploadInfo.Size = totalUploadedSize
return uploadInfo, nil
}
func (c *Client) putObjectMultipartStreamOptionalChecksum(ctx context.Context, bucketName, objectName string,
reader io.Reader, size int64, opts PutObjectOptions,
) (info UploadInfo, err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err = s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Calculate the optimal parts info for a given size.
totalPartsCount, partSize, lastPartSize, err := OptimalPartInfo(size, opts.PartSize)
if err != nil {
return UploadInfo{}, err
}
// Initiates a new multipart request
uploadID, err := c.newUploadID(ctx, bucketName, objectName, opts)
if err != nil {
return UploadInfo{}, err
}
// Aborts the multipart upload if the function returns
// any error, since we do not resume we should purge
// the parts which have been uploaded to relinquish
// storage space.
defer func() {
if err != nil {
c.abortMultipartUpload(ctx, bucketName, objectName, uploadID)
}
}()
// Create checksums
// CRC32C is ~50% faster on AMD64 @ 30GB/s
customHeader := make(http.Header)
crc := opts.AutoChecksum.Hasher()
md5Hash := c.md5Hasher()
defer md5Hash.Close()
// Total data read and written to server. should be equal to 'size' at the end of the call.
var totalUploadedSize int64
// Initialize parts uploaded map.
partsInfo := make(map[int]ObjectPart)
// Create a buffer.
buf := make([]byte, partSize)
// Avoid declaring variables in the for loop
var md5Base64 string
// Part number always starts with '1'.
var partNumber int
for partNumber = 1; partNumber <= totalPartsCount; partNumber++ {
// Proceed to upload the part.
if partNumber == totalPartsCount {
partSize = lastPartSize
}
length, rerr := readFull(reader, buf)
if rerr == io.EOF && partNumber > 1 {
break
}
if rerr != nil && rerr != io.ErrUnexpectedEOF && err != io.EOF {
return UploadInfo{}, rerr
}
// Calculate md5sum.
if opts.SendContentMd5 {
md5Hash.Reset()
md5Hash.Write(buf[:length])
md5Base64 = base64.StdEncoding.EncodeToString(md5Hash.Sum(nil))
}
if opts.AutoChecksum.IsSet() {
// Add CRC32C instead.
crc.Reset()
crc.Write(buf[:length])
cSum := crc.Sum(nil)
customHeader.Set(opts.AutoChecksum.Key(), base64.StdEncoding.EncodeToString(cSum))
customHeader.Set(amzChecksumAlgo, opts.AutoChecksum.String())
if opts.AutoChecksum.FullObjectRequested() {
customHeader.Set(amzChecksumMode, ChecksumFullObjectMode.String())
}
}
// Update progress reader appropriately to the latest offset
// as we read from the source.
hooked := newHook(bytes.NewReader(buf[:length]), opts.Progress)
p := uploadPartParams{bucketName: bucketName, objectName: objectName, uploadID: uploadID, reader: hooked, partNumber: partNumber, md5Base64: md5Base64, size: partSize, sse: opts.ServerSideEncryption, streamSha256: !opts.DisableContentSha256, customHeader: customHeader}
objPart, uerr := c.uploadPart(ctx, p)
if uerr != nil {
return UploadInfo{}, uerr
}
// Save successfully uploaded part metadata.
partsInfo[partNumber] = objPart
// Save successfully uploaded size.
totalUploadedSize += partSize
}
// Verify if we uploaded all the data.
if size > 0 {
if totalUploadedSize != size {
return UploadInfo{}, errUnexpectedEOF(totalUploadedSize, size, bucketName, objectName)
}
}
// Complete multipart upload.
var complMultipartUpload completeMultipartUpload
// Loop over total uploaded parts to save them in
// Parts array before completing the multipart request.
allParts := make([]ObjectPart, 0, len(partsInfo))
for i := 1; i < partNumber; i++ {
part, ok := partsInfo[i]
if !ok {
return UploadInfo{}, errInvalidArgument(fmt.Sprintf("Missing part number %d", i))
}
allParts = append(allParts, part)
complMultipartUpload.Parts = append(complMultipartUpload.Parts, CompletePart{
ETag: part.ETag,
PartNumber: part.PartNumber,
ChecksumCRC32: part.ChecksumCRC32,
ChecksumCRC32C: part.ChecksumCRC32C,
ChecksumSHA1: part.ChecksumSHA1,
ChecksumSHA256: part.ChecksumSHA256,
ChecksumCRC64NVME: part.ChecksumCRC64NVME,
ChecksumMD5: part.ChecksumMD5,
ChecksumSHA512: part.ChecksumSHA512,
ChecksumXXHash64: part.ChecksumXXHash64,
ChecksumXXHash3: part.ChecksumXXHash3,
ChecksumXXHash128: part.ChecksumXXHash128,
})
}
// Sort all completed parts.
sort.Sort(completedParts(complMultipartUpload.Parts))
opts = PutObjectOptions{
ServerSideEncryption: opts.ServerSideEncryption,
AutoChecksum: opts.AutoChecksum,
}
applyAutoChecksum(&opts, allParts)
uploadInfo, err := c.completeMultipartUpload(ctx, bucketName, objectName, uploadID, complMultipartUpload, opts)
if err != nil {
return UploadInfo{}, err
}
uploadInfo.Size = totalUploadedSize
return uploadInfo, nil
}
// putObjectMultipartStreamParallel uploads opts.NumThreads parts in parallel.
// This is expected to take opts.PartSize * opts.NumThreads * (GOGC / 100) bytes of buffer.
func (c *Client) putObjectMultipartStreamParallel(ctx context.Context, bucketName, objectName string,
reader io.Reader, opts PutObjectOptions,
) (info UploadInfo, err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err = s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Cancel all when an error occurs.
ctx, cancel := context.WithCancel(ctx)
defer cancel()
// Calculate the optimal parts info for a given size.
totalPartsCount, partSize, _, err := OptimalPartInfo(-1, opts.PartSize)
if err != nil {
return UploadInfo{}, err
}
// Initiates a new multipart request
uploadID, err := c.newUploadID(ctx, bucketName, objectName, opts)
if err != nil {
return UploadInfo{}, err
}
// Aborts the multipart upload if the function returns
// any error, since we do not resume we should purge
// the parts which have been uploaded to relinquish
// storage space.
defer func() {
if err != nil {
c.abortMultipartUpload(ctx, bucketName, objectName, uploadID)
}
}()
// Create checksums
// CRC32C is ~50% faster on AMD64 @ 30GB/s
crc := opts.AutoChecksum.Hasher()
// Total data read and written to server. should be equal to 'size' at the end of the call.
var totalUploadedSize int64
// Initialize parts uploaded map.
partsInfo := make(map[int]ObjectPart)
// Create a buffer.
nBuffers := int64(opts.NumThreads)
bufs := make(chan []byte, nBuffers)
all := make([]byte, nBuffers*partSize)
for i := int64(0); i < nBuffers; i++ {
bufs <- all[i*partSize : i*partSize+partSize]
}
var wg sync.WaitGroup
var mu sync.Mutex
errCh := make(chan error, opts.NumThreads)
reader = newHook(reader, opts.Progress)
// Part number always starts with '1'.
var partNumber int
for partNumber = 1; partNumber <= totalPartsCount; partNumber++ {
// Proceed to upload the part.
var buf []byte
select {
case buf = <-bufs:
case err = <-errCh:
cancel()
wg.Wait()
return UploadInfo{}, err
}
if int64(len(buf)) != partSize {
return UploadInfo{}, fmt.Errorf("read buffer < %d than expected partSize: %d", len(buf), partSize)
}
length, rerr := readFull(reader, buf)
if rerr == io.EOF && partNumber > 1 {
// Done
break
}
if rerr != nil && rerr != io.ErrUnexpectedEOF && rerr != io.EOF {
cancel()
wg.Wait()
return UploadInfo{}, rerr
}
wg.Add(1)
go func(partNumber int) {
// Calculate md5sum.
customHeader := make(http.Header)
if opts.AutoChecksum.IsSet() {
// Add Checksum instead.
crc.Reset()
crc.Write(buf[:length])
cSum := crc.Sum(nil)
customHeader.Set(opts.AutoChecksum.Key(), base64.StdEncoding.EncodeToString(cSum))
customHeader.Set(amzChecksumAlgo, opts.AutoChecksum.String())
if opts.AutoChecksum.FullObjectRequested() {
customHeader.Set(amzChecksumMode, ChecksumFullObjectMode.String())
}
}
// Avoid declaring variables in the for loop
var md5Base64 string
if opts.SendContentMd5 {
md5Hash := c.md5Hasher()
md5Hash.Write(buf[:length])
md5Base64 = base64.StdEncoding.EncodeToString(md5Hash.Sum(nil))
md5Hash.Close()
}
defer wg.Done()
p := uploadPartParams{
bucketName: bucketName,
objectName: objectName,
uploadID: uploadID,
reader: bytes.NewReader(buf[:length]),
partNumber: partNumber,
md5Base64: md5Base64,
size: int64(length),
sse: opts.ServerSideEncryption,
streamSha256: !opts.DisableContentSha256,
customHeader: customHeader,
}
objPart, uerr := c.uploadPart(ctx, p)
if uerr != nil {
errCh <- uerr
return
}
// Save successfully uploaded part metadata.
mu.Lock()
partsInfo[partNumber] = objPart
mu.Unlock()
// Send buffer back so it can be reused.
bufs <- buf
}(partNumber)
// Save successfully uploaded size.
totalUploadedSize += int64(length)
}
wg.Wait()
// Collect any error
select {
case err = <-errCh:
return UploadInfo{}, err
default:
}
// Complete multipart upload.
var complMultipartUpload completeMultipartUpload
// Loop over total uploaded parts to save them in
// Parts array before completing the multipart request.
allParts := make([]ObjectPart, 0, len(partsInfo))
for i := 1; i < partNumber; i++ {
part, ok := partsInfo[i]
if !ok {
return UploadInfo{}, errInvalidArgument(fmt.Sprintf("Missing part number %d", i))
}
allParts = append(allParts, part)
complMultipartUpload.Parts = append(complMultipartUpload.Parts, CompletePart{
ETag: part.ETag,
PartNumber: part.PartNumber,
ChecksumCRC32: part.ChecksumCRC32,
ChecksumCRC32C: part.ChecksumCRC32C,
ChecksumSHA1: part.ChecksumSHA1,
ChecksumSHA256: part.ChecksumSHA256,
ChecksumCRC64NVME: part.ChecksumCRC64NVME,
ChecksumMD5: part.ChecksumMD5,
ChecksumSHA512: part.ChecksumSHA512,
ChecksumXXHash64: part.ChecksumXXHash64,
ChecksumXXHash3: part.ChecksumXXHash3,
ChecksumXXHash128: part.ChecksumXXHash128,
})
}
// Sort all completed parts.
sort.Sort(completedParts(complMultipartUpload.Parts))
opts = PutObjectOptions{
ServerSideEncryption: opts.ServerSideEncryption,
AutoChecksum: opts.AutoChecksum,
}
applyAutoChecksum(&opts, allParts)
uploadInfo, err := c.completeMultipartUpload(ctx, bucketName, objectName, uploadID, complMultipartUpload, opts)
if err != nil {
return UploadInfo{}, err
}
uploadInfo.Size = totalUploadedSize
return uploadInfo, nil
}
// putObject special function used Google Cloud Storage. This special function
// is used for Google Cloud Storage since Google's multipart API is not S3 compatible.
func (c *Client) putObject(ctx context.Context, bucketName, objectName string, reader io.Reader, size int64, opts PutObjectOptions) (info UploadInfo, err error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Size -1 is only supported on Google Cloud Storage, we error
// out in all other situations.
if size < 0 && !s3utils.IsGoogleEndpoint(*c.endpointURL) {
return UploadInfo{}, errEntityTooSmall(size, bucketName, objectName)
}
if opts.SendContentMd5 && s3utils.IsGoogleEndpoint(*c.endpointURL) && size < 0 {
return UploadInfo{}, errInvalidArgument("MD5Sum cannot be calculated with size '-1'")
}
var readSeeker io.Seeker
if size > 0 {
if isReadAt(reader) && !isObject(reader) {
seeker, ok := reader.(io.Seeker)
if ok {
offset, err := seeker.Seek(0, io.SeekCurrent)
if err != nil {
return UploadInfo{}, errInvalidArgument(err.Error())
}
reader = io.NewSectionReader(reader.(io.ReaderAt), offset, size)
readSeeker = reader.(io.Seeker)
}
}
}
var md5Base64 string
if opts.SendContentMd5 {
// Calculate md5sum.
hash := c.md5Hasher()
if readSeeker != nil {
if _, err := io.Copy(hash, reader); err != nil {
return UploadInfo{}, err
}
// Seek back to beginning of io.NewSectionReader's offset.
_, err = readSeeker.Seek(0, io.SeekStart)
if err != nil {
return UploadInfo{}, errInvalidArgument(err.Error())
}
} else {
// Create a buffer.
buf := make([]byte, size)
length, err := readFull(reader, buf)
if err != nil && err != io.ErrUnexpectedEOF && err != io.EOF {
return UploadInfo{}, err
}
hash.Write(buf[:length])
reader = bytes.NewReader(buf[:length])
}
md5Base64 = base64.StdEncoding.EncodeToString(hash.Sum(nil))
hash.Close()
}
// Update progress reader appropriately to the latest offset as we
// read from the source.
progressReader := newHook(reader, opts.Progress)
// This function does not calculate sha256 and md5sum for payload.
// Execute put object.
return c.putObjectDo(ctx, bucketName, objectName, progressReader, md5Base64, "", size, opts)
}
// putObjectDo - executes the put object http operation.
// NOTE: You must have WRITE permissions on a bucket to add an object to it.
func (c *Client) putObjectDo(ctx context.Context, bucketName, objectName string, reader io.Reader, md5Base64, sha256Hex string, size int64, opts PutObjectOptions) (UploadInfo, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Set headers.
customHeader := opts.Header()
// Populate request metadata.
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
customHeader: customHeader,
contentBody: reader,
contentLength: size,
contentMD5Base64: md5Base64,
contentSHA256Hex: sha256Hex,
streamSha256: !opts.DisableContentSha256,
}
// Add CRC when client supports it, MD5 is not set, not Google and we don't add SHA256 to chunks.
addCrc := c.trailingHeaderSupport && md5Base64 == "" && !s3utils.IsGoogleEndpoint(*c.endpointURL) && (opts.DisableContentSha256 || c.secure)
if opts.Checksum.IsSet() {
reqMetadata.addCrc = &opts.Checksum
} else if addCrc {
// If user has added checksums, don't add them ourselves.
for k := range opts.UserMetadata {
if strings.HasPrefix(strings.ToLower(k), "x-amz-checksum-") {
addCrc = false
}
}
if addCrc {
opts.AutoChecksum.SetDefault(ChecksumFullObjectCRC32C)
reqMetadata.addCrc = &opts.AutoChecksum
}
}
if opts.Internal.SourceVersionID != "" {
if opts.Internal.SourceVersionID != nullVersionID {
if _, err := uuid.Parse(opts.Internal.SourceVersionID); err != nil {
return UploadInfo{}, errInvalidArgument(err.Error())
}
}
urlValues := make(url.Values)
urlValues.Set("versionId", opts.Internal.SourceVersionID)
reqMetadata.queryValues = urlValues
}
// Execute PUT an objectName.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return UploadInfo{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return UploadInfo{}, httpRespToErrorResponse(resp, bucketName, objectName)
}
}
// extract lifecycle expiry date and rule ID
expTime, ruleID := amzExpirationToExpiryDateRuleID(resp.Header.Get(amzExpiration))
h := resp.Header
return UploadInfo{
Bucket: bucketName,
Key: objectName,
ETag: trimEtag(h.Get("ETag")),
VersionID: h.Get(amzVersionID),
Size: size,
Expiration: expTime,
ExpirationRuleID: ruleID,
// Checksum values
ChecksumCRC32: h.Get(ChecksumCRC32.Key()),
ChecksumCRC32C: h.Get(ChecksumCRC32C.Key()),
ChecksumSHA1: h.Get(ChecksumSHA1.Key()),
ChecksumSHA256: h.Get(ChecksumSHA256.Key()),
ChecksumCRC64NVME: h.Get(ChecksumCRC64NVME.Key()),
ChecksumMD5: h.Get(ChecksumMD5.Key()),
ChecksumSHA512: h.Get(ChecksumSHA512.Key()),
ChecksumXXHash64: h.Get(ChecksumXXHash64.Key()),
ChecksumXXHash3: h.Get(ChecksumXXHash3.Key()),
ChecksumXXHash128: h.Get(ChecksumXXHash128.Key()),
ChecksumMode: h.Get(ChecksumFullObjectMode.Key()),
}, nil
}
+529
View File
@@ -0,0 +1,529 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/base64"
"errors"
"fmt"
"io"
"net/http"
"sort"
"strings"
"time"
"github.com/minio/minio-go/v7/pkg/encrypt"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/tags"
"golang.org/x/net/http/httpguts"
)
// ReplicationStatus represents replication status of object
type ReplicationStatus string
const (
// ReplicationStatusPending indicates replication is pending
ReplicationStatusPending ReplicationStatus = "PENDING"
// ReplicationStatusComplete indicates replication completed ok
ReplicationStatusComplete ReplicationStatus = "COMPLETED"
// ReplicationStatusFailed indicates replication failed
ReplicationStatusFailed ReplicationStatus = "FAILED"
// ReplicationStatusReplica indicates object is a replica of a source
ReplicationStatusReplica ReplicationStatus = "REPLICA"
// ReplicationStatusReplicaEdge indicates object is a replica of a edge source
ReplicationStatusReplicaEdge ReplicationStatus = "REPLICA-EDGE"
)
// Empty returns true if no replication status set.
func (r ReplicationStatus) Empty() bool {
return r == ""
}
// AdvancedPutOptions for internal use - to be utilized by replication, ILM transition
// implementation on MinIO server
type AdvancedPutOptions struct {
SourceVersionID string
SourceETag string
ReplicationStatus ReplicationStatus
SourceMTime time.Time
ReplicationRequest bool
RetentionTimestamp time.Time
TaggingTimestamp time.Time
LegalholdTimestamp time.Time
ReplicationValidityCheck bool
}
// PutObjectOptions represents options specified by user for PutObject call
type PutObjectOptions struct {
UserMetadata map[string]string
UserTags map[string]string
Progress io.Reader
ContentType string
ContentEncoding string
ContentDisposition string
ContentLanguage string
CacheControl string
Expires time.Time
Mode RetentionMode
RetainUntilDate time.Time
ServerSideEncryption encrypt.ServerSide
NumThreads uint
StorageClass string
WebsiteRedirectLocation string
PartSize uint64
LegalHold LegalHoldStatus
SendContentMd5 bool
DisableContentSha256 bool
DisableMultipart bool
// AutoChecksum is the type of checksum that will be added if no other checksum is added,
// like MD5 or SHA256 streaming checksum, and it is feasible for the upload type.
// If none is specified CRC32C is used, since it is generally the fastest.
AutoChecksum ChecksumType
// Checksum will force a checksum of the specific type.
// This requires that the client was created with "TrailingHeaders:true" option,
// and that the destination server supports it.
// Unavailable with V2 signatures & Google endpoints.
// This will disable content MD5 checksums if set.
Checksum ChecksumType
// ConcurrentStreamParts will create NumThreads buffers of PartSize bytes,
// fill them serially and upload them in parallel.
// This can be used for faster uploads on non-seekable or slow-to-seek input.
ConcurrentStreamParts bool
Internal AdvancedPutOptions
customHeaders http.Header
}
// SetMatchETag if etag matches while PUT MinIO returns an error
// this is a MinIO specific extension to support optimistic locking
// semantics.
func (opts *PutObjectOptions) SetMatchETag(etag string) {
if opts.customHeaders == nil {
opts.customHeaders = http.Header{}
}
if etag == "*" {
opts.customHeaders.Set("If-Match", "*")
} else {
opts.customHeaders.Set("If-Match", "\""+etag+"\"")
}
}
// SetMatchETagExcept if etag does not match while PUT MinIO returns an
// error this is a MinIO specific extension to support optimistic locking
// semantics.
func (opts *PutObjectOptions) SetMatchETagExcept(etag string) {
if opts.customHeaders == nil {
opts.customHeaders = http.Header{}
}
if etag == "*" {
opts.customHeaders.Set("If-None-Match", "*")
} else {
opts.customHeaders.Set("If-None-Match", "\""+etag+"\"")
}
}
// getNumThreads - gets the number of threads to be used in the multipart
// put object operation
func (opts PutObjectOptions) getNumThreads() (numThreads int) {
if opts.NumThreads > 0 {
numThreads = int(opts.NumThreads)
} else {
numThreads = totalWorkers
}
return numThreads
}
// Header - constructs the headers from metadata entered by user in
// PutObjectOptions struct
func (opts PutObjectOptions) Header() (header http.Header) {
header = make(http.Header)
contentType := opts.ContentType
if contentType == "" {
contentType = "application/octet-stream"
}
header.Set("Content-Type", contentType)
if opts.ContentEncoding != "" {
header.Set("Content-Encoding", opts.ContentEncoding)
}
if opts.ContentDisposition != "" {
header.Set("Content-Disposition", opts.ContentDisposition)
}
if opts.ContentLanguage != "" {
header.Set("Content-Language", opts.ContentLanguage)
}
if opts.CacheControl != "" {
header.Set("Cache-Control", opts.CacheControl)
}
if !opts.Expires.IsZero() {
header.Set("Expires", opts.Expires.UTC().Format(http.TimeFormat))
}
if opts.Mode != "" {
header.Set(amzLockMode, opts.Mode.String())
}
if !opts.RetainUntilDate.IsZero() {
header.Set("X-Amz-Object-Lock-Retain-Until-Date", opts.RetainUntilDate.Format(time.RFC3339))
}
if opts.LegalHold != "" {
header.Set(amzLegalHoldHeader, opts.LegalHold.String())
}
if opts.ServerSideEncryption != nil {
opts.ServerSideEncryption.Marshal(header)
}
if opts.StorageClass != "" {
header.Set(amzStorageClass, opts.StorageClass)
}
if opts.WebsiteRedirectLocation != "" {
header.Set(amzWebsiteRedirectLocation, opts.WebsiteRedirectLocation)
}
if !opts.Internal.ReplicationStatus.Empty() {
header.Set(amzBucketReplicationStatus, string(opts.Internal.ReplicationStatus))
}
if !opts.Internal.SourceMTime.IsZero() {
header.Set(minIOBucketSourceMTime, opts.Internal.SourceMTime.Format(time.RFC3339Nano))
}
if opts.Internal.SourceETag != "" {
header.Set(minIOBucketSourceETag, opts.Internal.SourceETag)
}
if opts.Internal.ReplicationRequest {
header.Set(minIOBucketReplicationRequest, "true")
}
if opts.Internal.ReplicationValidityCheck {
header.Set(minIOBucketReplicationCheck, "true")
}
if !opts.Internal.LegalholdTimestamp.IsZero() {
header.Set(minIOBucketReplicationObjectLegalHoldTimestamp, opts.Internal.LegalholdTimestamp.Format(time.RFC3339Nano))
}
if !opts.Internal.RetentionTimestamp.IsZero() {
header.Set(minIOBucketReplicationObjectRetentionTimestamp, opts.Internal.RetentionTimestamp.Format(time.RFC3339Nano))
}
if !opts.Internal.TaggingTimestamp.IsZero() {
header.Set(minIOBucketReplicationTaggingTimestamp, opts.Internal.TaggingTimestamp.Format(time.RFC3339Nano))
}
if len(opts.UserTags) != 0 {
if tags, _ := tags.NewTags(opts.UserTags, true); tags != nil {
header.Set(amzTaggingHeader, tags.String())
}
}
for k, v := range opts.UserMetadata {
if isAmzHeader(k) || isStandardHeader(k) || isStorageClassHeader(k) || isMinioHeader(k) {
header.Set(k, v)
} else {
header.Set("x-amz-meta-"+k, v)
}
}
// set any other additional custom headers.
for k, v := range opts.customHeaders {
header[k] = v
}
return header
}
// validate() checks if the UserMetadata map has standard headers or and raises an error if so.
func (opts PutObjectOptions) validate(c *Client) (err error) {
for k, v := range opts.UserMetadata {
if !httpguts.ValidHeaderFieldName(k) || isStandardHeader(k) || isSSEHeader(k) || isStorageClassHeader(k) || isMinioHeader(k) {
return errInvalidArgument(k + " unsupported user defined metadata name")
}
if !httpguts.ValidHeaderFieldValue(v) {
return errInvalidArgument(v + " unsupported user defined metadata value")
}
}
if opts.Mode != "" && !opts.Mode.IsValid() {
return errInvalidArgument(opts.Mode.String() + " unsupported retention mode")
}
if opts.LegalHold != "" && !opts.LegalHold.IsValid() {
return errInvalidArgument(opts.LegalHold.String() + " unsupported legal-hold status")
}
checkCrc := false
for k := range opts.UserMetadata {
if strings.HasPrefix(k, "x-amz-checksum-") {
checkCrc = true
break
}
}
if opts.Checksum.IsSet() || checkCrc {
switch {
case !c.trailingHeaderSupport:
return errInvalidArgument("Checksum requires Client with TrailingHeaders enabled")
case c.overrideSignerType.IsV2():
return errInvalidArgument("Checksum cannot be used with v2 signatures")
case s3utils.IsGoogleEndpoint(*c.endpointURL):
return errInvalidArgument("Checksum cannot be used with GCS endpoints")
}
}
return nil
}
// completedParts is a collection of parts sortable by their part numbers.
// used for sorting the uploaded parts before completing the multipart request.
type completedParts []CompletePart
func (a completedParts) Len() int { return len(a) }
func (a completedParts) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a completedParts) Less(i, j int) bool { return a[i].PartNumber < a[j].PartNumber }
// PutObject creates an object in a bucket.
//
// You must have WRITE permissions on a bucket to create an object.
//
// - For size smaller than 16MiB PutObject automatically does a
// single atomic PUT operation.
//
// - For size larger than 16MiB PutObject automatically does a
// multipart upload operation.
//
// - For size input as -1 PutObject does a multipart Put operation
// until input stream reaches EOF. Maximum object size that can
// be uploaded through this operation will be 5TiB by default.
// For larger objects (up to ~48.83TiB), set PutObjectOptions.PartSize
// to control memory usage and enable uploads beyond 5TiB.
//
// WARNING: Passing down '-1' will use memory and these cannot
// be reused for best outcomes for PutObject(), pass the size always.
//
// NOTE: Upon errors during upload multipart operation is entirely aborted.
func (c *Client) PutObject(ctx context.Context, bucketName, objectName string, reader io.Reader, size int64,
opts PutObjectOptions,
) (info UploadInfo, err error) {
if size < 0 && opts.DisableMultipart {
return UploadInfo{}, errors.New("object size must be provided with disable multipart upload")
}
err = opts.validate(c)
if err != nil {
return UploadInfo{}, err
}
// Check for largest object size allowed.
if size > int64(maxObjectSize) {
return UploadInfo{}, errEntityTooLarge(size, maxObjectSize, bucketName, objectName)
}
if opts.Checksum.IsSet() {
opts.AutoChecksum = opts.Checksum
opts.SendContentMd5 = false
}
if c.trailingHeaderSupport {
opts.AutoChecksum.SetDefault(ChecksumCRC32C)
addAutoChecksumHeaders(&opts)
}
// NOTE: Streaming signature is not supported by GCS.
if s3utils.IsGoogleEndpoint(*c.endpointURL) {
return c.putObject(ctx, bucketName, objectName, reader, size, opts)
}
partSize := opts.PartSize
if opts.PartSize == 0 {
partSize = minPartSize
}
if c.overrideSignerType.IsV2() {
if size >= 0 && size < int64(partSize) || opts.DisableMultipart {
return c.putObject(ctx, bucketName, objectName, reader, size, opts)
}
return c.putObjectMultipart(ctx, bucketName, objectName, reader, size, opts)
}
if size < 0 {
if opts.DisableMultipart {
return UploadInfo{}, errors.New("no length provided and multipart disabled")
}
if opts.ConcurrentStreamParts && opts.NumThreads > 1 {
return c.putObjectMultipartStreamParallel(ctx, bucketName, objectName, reader, opts)
}
return c.putObjectMultipartStreamNoLength(ctx, bucketName, objectName, reader, opts)
}
if size <= int64(partSize) || opts.DisableMultipart {
return c.putObject(ctx, bucketName, objectName, reader, size, opts)
}
return c.putObjectMultipartStream(ctx, bucketName, objectName, reader, size, opts)
}
func (c *Client) putObjectMultipartStreamNoLength(ctx context.Context, bucketName, objectName string, reader io.Reader, opts PutObjectOptions) (info UploadInfo, err error) {
// Input validation.
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return UploadInfo{}, err
}
if err = s3utils.CheckValidObjectName(objectName); err != nil {
return UploadInfo{}, err
}
// Total data read and written to server. should be equal to
// 'size' at the end of the call.
var totalUploadedSize int64
// Complete multipart upload.
var complMultipartUpload completeMultipartUpload
// Calculate the optimal parts info for a given size.
totalPartsCount, partSize, _, err := OptimalPartInfo(-1, opts.PartSize)
if err != nil {
return UploadInfo{}, err
}
// Initiate a new multipart upload.
uploadID, err := c.newUploadID(ctx, bucketName, objectName, opts)
if err != nil {
return UploadInfo{}, err
}
defer func() {
if err != nil {
c.abortMultipartUpload(ctx, bucketName, objectName, uploadID)
}
}()
// Part number always starts with '1'.
partNumber := 1
// Initialize parts uploaded map.
partsInfo := make(map[int]ObjectPart)
// Create a buffer.
buf := make([]byte, partSize)
// Create checksums
// CRC32C is ~50% faster on AMD64 @ 30GB/s
customHeader := make(http.Header)
crc := opts.AutoChecksum.Hasher()
for partNumber <= totalPartsCount {
length, rerr := readFull(reader, buf)
if rerr == io.EOF && partNumber > 1 {
break
}
if rerr != nil && rerr != io.ErrUnexpectedEOF && rerr != io.EOF {
return UploadInfo{}, rerr
}
var md5Base64 string
if opts.SendContentMd5 {
// Calculate md5sum.
hash := c.md5Hasher()
hash.Write(buf[:length])
md5Base64 = base64.StdEncoding.EncodeToString(hash.Sum(nil))
hash.Close()
}
if opts.AutoChecksum.IsSet() {
crc.Reset()
crc.Write(buf[:length])
cSum := crc.Sum(nil)
customHeader.Set(opts.AutoChecksum.Key(), base64.StdEncoding.EncodeToString(cSum))
customHeader.Set(amzChecksumAlgo, opts.AutoChecksum.String())
if opts.AutoChecksum.FullObjectRequested() {
customHeader.Set(amzChecksumMode, ChecksumFullObjectMode.String())
}
}
// Update progress reader appropriately to the latest offset
// as we read from the source.
rd := newHook(bytes.NewReader(buf[:length]), opts.Progress)
// Proceed to upload the part.
p := uploadPartParams{bucketName: bucketName, objectName: objectName, uploadID: uploadID, reader: rd, partNumber: partNumber, md5Base64: md5Base64, size: int64(length), sse: opts.ServerSideEncryption, streamSha256: !opts.DisableContentSha256, customHeader: customHeader}
objPart, uerr := c.uploadPart(ctx, p)
if uerr != nil {
return UploadInfo{}, uerr
}
// Save successfully uploaded part metadata.
partsInfo[partNumber] = objPart
// Save successfully uploaded size.
totalUploadedSize += int64(length)
// Increment part number.
partNumber++
// For unknown size, Read EOF we break away.
// We do not have to upload till totalPartsCount.
if rerr == io.EOF {
break
}
}
// Loop over total uploaded parts to save them in
// Parts array before completing the multipart request.
allParts := make([]ObjectPart, 0, len(partsInfo))
for i := 1; i < partNumber; i++ {
part, ok := partsInfo[i]
if !ok {
return UploadInfo{}, errInvalidArgument(fmt.Sprintf("Missing part number %d", i))
}
allParts = append(allParts, part)
complMultipartUpload.Parts = append(complMultipartUpload.Parts, CompletePart{
ETag: part.ETag,
PartNumber: part.PartNumber,
ChecksumCRC32: part.ChecksumCRC32,
ChecksumCRC32C: part.ChecksumCRC32C,
ChecksumSHA1: part.ChecksumSHA1,
ChecksumSHA256: part.ChecksumSHA256,
ChecksumCRC64NVME: part.ChecksumCRC64NVME,
ChecksumMD5: part.ChecksumMD5,
ChecksumSHA512: part.ChecksumSHA512,
ChecksumXXHash64: part.ChecksumXXHash64,
ChecksumXXHash3: part.ChecksumXXHash3,
ChecksumXXHash128: part.ChecksumXXHash128,
})
}
// Sort all completed parts.
sort.Sort(completedParts(complMultipartUpload.Parts))
opts = PutObjectOptions{
ServerSideEncryption: opts.ServerSideEncryption,
AutoChecksum: opts.AutoChecksum,
}
applyAutoChecksum(&opts, allParts)
uploadInfo, err := c.completeMultipartUpload(ctx, bucketName, objectName, uploadID, complMultipartUpload, opts)
if err != nil {
return UploadInfo{}, err
}
uploadInfo.Size = totalUploadedSize
return uploadInfo, nil
}
+246
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@@ -0,0 +1,246 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2021 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"archive/tar"
"bufio"
"bytes"
"context"
"fmt"
"io"
"net/http"
"os"
"strings"
"sync"
"time"
"github.com/klauspost/compress/s2"
)
// SnowballOptions contains options for PutObjectsSnowball calls.
type SnowballOptions struct {
// Opts is options applied to all objects.
Opts PutObjectOptions
// Processing options:
// InMemory specifies that all objects should be collected in memory
// before they are uploaded.
// If false a temporary file will be created.
InMemory bool
// Compress enabled content compression before upload.
// Compression will typically reduce memory and network usage,
// Compression can safely be enabled with MinIO hosts.
Compress bool
// SkipErrs if enabled will skip any errors while reading the
// object content while creating the snowball archive
SkipErrs bool
}
// SnowballObject contains information about a single object to be added to the snowball.
type SnowballObject struct {
// Key is the destination key, including prefix.
Key string
// Size is the content size of this object.
Size int64
// Modtime to apply to the object.
// If Modtime is the zero value current time will be used.
ModTime time.Time
// Content of the object.
// Exactly 'Size' number of bytes must be provided.
Content io.Reader
// VersionID of the object; if empty, a new versionID will be generated
VersionID string
// Headers contains more options for this object upload, the same as you
// would include in a regular PutObject operation, such as user metadata
// and content-disposition, expires, ..
Headers http.Header
// Close will be called when an object has finished processing.
// Note that if PutObjectsSnowball returns because of an error,
// objects not consumed from the input will NOT have been closed.
// Leave as nil for no callback.
Close func()
}
type nopReadSeekCloser struct {
io.ReadSeeker
}
func (n nopReadSeekCloser) Close() error {
return nil
}
// This is available as io.ReadSeekCloser from go1.16
type readSeekCloser interface {
io.Reader
io.Closer
io.Seeker
}
// PutObjectsSnowball will put multiple objects with a single put call.
// A (compressed) TAR file will be created which will contain multiple objects.
// The key for each object will be used for the destination in the specified bucket.
// Total size should be < 5TB.
// This function blocks until 'objs' is closed and the content has been uploaded.
func (c *Client) PutObjectsSnowball(ctx context.Context, bucketName string, opts SnowballOptions, objs <-chan SnowballObject) (err error) {
err = opts.Opts.validate(c)
if err != nil {
return err
}
var tmpWriter io.Writer
var getTmpReader func() (rc readSeekCloser, sz int64, err error)
if opts.InMemory {
b := bytes.NewBuffer(nil)
tmpWriter = b
getTmpReader = func() (readSeekCloser, int64, error) {
return nopReadSeekCloser{bytes.NewReader(b.Bytes())}, int64(b.Len()), nil
}
} else {
f, err := os.CreateTemp("", "s3-putsnowballobjects-*")
if err != nil {
return err
}
name := f.Name()
tmpWriter = f
var once sync.Once
defer once.Do(func() {
f.Close()
})
defer os.Remove(name)
getTmpReader = func() (readSeekCloser, int64, error) {
once.Do(func() {
f.Close()
})
f, err := os.Open(name)
if err != nil {
return nil, 0, err
}
st, err := f.Stat()
if err != nil {
return nil, 0, err
}
return f, st.Size(), nil
}
}
flush := func() error { return nil }
if !opts.Compress {
if !opts.InMemory {
// Insert buffer for writes.
buf := bufio.NewWriterSize(tmpWriter, 1<<20)
flush = buf.Flush
tmpWriter = buf
}
} else {
s2c := s2.NewWriter(tmpWriter, s2.WriterBetterCompression())
flush = s2c.Close
defer s2c.Close()
tmpWriter = s2c
}
t := tar.NewWriter(tmpWriter)
objectLoop:
for {
select {
case <-ctx.Done():
return ctx.Err()
case obj, ok := <-objs:
if !ok {
break objectLoop
}
closeObj := func() {}
if obj.Close != nil {
closeObj = obj.Close
}
// Trim accidental slash prefix.
obj.Key = strings.TrimPrefix(obj.Key, "/")
header := tar.Header{
Typeflag: tar.TypeReg,
Name: obj.Key,
Size: obj.Size,
ModTime: obj.ModTime,
Format: tar.FormatPAX,
}
if header.ModTime.IsZero() {
header.ModTime = time.Now().UTC()
}
header.PAXRecords = make(map[string]string)
if obj.VersionID != "" {
header.PAXRecords["minio.versionId"] = obj.VersionID
}
for k, vals := range obj.Headers {
header.PAXRecords["minio.metadata."+k] = strings.Join(vals, ",")
}
if err := t.WriteHeader(&header); err != nil {
closeObj()
return err
}
n, err := io.Copy(t, obj.Content)
if err != nil {
closeObj()
if opts.SkipErrs {
continue
}
return err
}
if n != obj.Size {
closeObj()
if opts.SkipErrs {
continue
}
return io.ErrUnexpectedEOF
}
closeObj()
}
}
// Flush tar
err = t.Flush()
if err != nil {
return err
}
// Flush compression
err = flush()
if err != nil {
return err
}
if opts.Opts.UserMetadata == nil {
opts.Opts.UserMetadata = map[string]string{}
}
opts.Opts.UserMetadata["X-Amz-Meta-Snowball-Auto-Extract"] = "true"
opts.Opts.DisableMultipart = true
rc, sz, err := getTmpReader()
if err != nil {
return err
}
defer rc.Close()
rand := c.random.Uint64()
_, err = c.PutObject(ctx, bucketName, fmt.Sprintf("snowball-upload-%x.tar", rand), rc, sz, opts.Opts)
return err
}
+796
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@@ -0,0 +1,796 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"io"
"iter"
"net/http"
"net/url"
"time"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// useMultiDeleteForBulkDelete returns true if the client should use
// multi-object delete API for bulk delete operations. Returns false
// for endpoints that do not support multi-object delete (e.g., GCS).
func (c *Client) useMultiDeleteForBulkDelete() bool {
// NOTE: GCS does not support multi-object delete API.
return !s3utils.IsGoogleEndpoint(*c.endpointURL)
}
//revive:disable
// Deprecated: BucketOptions will be renamed to RemoveBucketOptions in future versions.
type BucketOptions = RemoveBucketOptions
//revive:enable
// RemoveBucketOptions special headers to purge buckets, only
// useful when endpoint is MinIO
type RemoveBucketOptions struct {
ForceDelete bool
}
// RemoveBucketWithOptions deletes the bucket name.
//
// All objects (including all object versions and delete markers)
// in the bucket will be deleted forcibly if bucket options set
// ForceDelete to 'true'.
func (c *Client) RemoveBucketWithOptions(ctx context.Context, bucketName string, opts RemoveBucketOptions) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// Build headers.
headers := make(http.Header)
if opts.ForceDelete {
headers.Set(minIOForceDelete, "true")
}
// Execute DELETE on bucket.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
contentSHA256Hex: emptySHA256Hex,
customHeader: headers,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, "")
}
}
// Remove the location from cache on a successful delete.
c.bucketLocCache.Delete(bucketName)
return nil
}
// RemoveBucket deletes the bucket name.
//
// All objects (including all object versions and delete markers).
// in the bucket must be deleted before successfully attempting this request.
func (c *Client) RemoveBucket(ctx context.Context, bucketName string) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
// Execute DELETE on bucket.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusNoContent {
return httpRespToErrorResponse(resp, bucketName, "")
}
}
// Remove the location from cache on a successful delete.
c.bucketLocCache.Delete(bucketName)
return nil
}
// AdvancedRemoveOptions intended for internal use by replication
type AdvancedRemoveOptions struct {
ReplicationDeleteMarker bool
ReplicationStatus ReplicationStatus
ReplicationMTime time.Time
ReplicationRequest bool
ReplicationValidityCheck bool // check permissions
}
// RemoveObjectOptions represents options specified by user for RemoveObject call
type RemoveObjectOptions struct {
ForceDelete bool
GovernanceBypass bool
VersionID string
Internal AdvancedRemoveOptions
}
// RemoveObject removes an object from a bucket.
func (c *Client) RemoveObject(ctx context.Context, bucketName, objectName string, opts RemoveObjectOptions) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return err
}
res := c.removeObject(ctx, bucketName, objectName, opts)
return res.Err
}
func (c *Client) removeObject(ctx context.Context, bucketName, objectName string, opts RemoveObjectOptions) RemoveObjectResult {
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
if opts.VersionID != "" {
urlValues.Set("versionId", opts.VersionID)
}
// Build headers.
headers := make(http.Header)
if opts.GovernanceBypass {
// Set the bypass goverenance retention header
headers.Set(amzBypassGovernance, "true")
}
if opts.Internal.ReplicationDeleteMarker {
headers.Set(minIOBucketReplicationDeleteMarker, "true")
}
if !opts.Internal.ReplicationMTime.IsZero() {
headers.Set(minIOBucketSourceMTime, opts.Internal.ReplicationMTime.Format(time.RFC3339Nano))
}
if !opts.Internal.ReplicationStatus.Empty() {
headers.Set(amzBucketReplicationStatus, string(opts.Internal.ReplicationStatus))
}
if opts.Internal.ReplicationRequest {
headers.Set(minIOBucketReplicationRequest, "true")
}
if opts.Internal.ReplicationValidityCheck {
headers.Set(minIOBucketReplicationCheck, "true")
}
if opts.ForceDelete {
headers.Set(minIOForceDelete, "true")
}
// Execute DELETE on objectName.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
objectName: objectName,
contentSHA256Hex: emptySHA256Hex,
queryValues: urlValues,
customHeader: headers,
})
defer closeResponse(resp)
if err != nil {
return RemoveObjectResult{Err: err}
}
if resp != nil {
// if some unexpected error happened and max retry is reached, we want to let client know
if resp.StatusCode != http.StatusNoContent {
err := httpRespToErrorResponse(resp, bucketName, objectName)
return RemoveObjectResult{Err: err}
}
}
// DeleteObject always responds with http '204' even for
// objects which do not exist. So no need to handle them
// specifically.
return RemoveObjectResult{
ObjectName: objectName,
ObjectVersionID: opts.VersionID,
DeleteMarker: resp.Header.Get("x-amz-delete-marker") == "true",
DeleteMarkerVersionID: resp.Header.Get("x-amz-version-id"),
}
}
// RemoveObjectError - container of Multi Delete S3 API error
type RemoveObjectError struct {
ObjectName string
VersionID string
Err error
}
func (err *RemoveObjectError) Error() string {
// This should never happen as we will have a non-nil error with no underlying error.
if err.Err == nil {
return "unexpected remove object error result"
}
return err.Err.Error()
}
// RemoveObjectResult - container of Multi Delete S3 API result
type RemoveObjectResult struct {
ObjectName string
ObjectVersionID string
DeleteMarker bool
DeleteMarkerVersionID string
Err error
}
// generateRemoveMultiObjects - generate the XML request for remove multi objects request
func generateRemoveMultiObjectsRequest(objects []ObjectInfo) []byte {
delObjects := []deleteObject{}
for _, obj := range objects {
delObjects = append(delObjects, deleteObject{
Key: obj.Key,
VersionID: obj.VersionID,
})
}
xmlBytes, _ := xml.Marshal(deleteMultiObjects{Objects: delObjects, Quiet: false})
return xmlBytes
}
// processRemoveMultiObjectsResponse - parse the remove multi objects web service
// and return the success/failure result status for each object
func processRemoveMultiObjectsResponse(body io.Reader, resultCh chan<- RemoveObjectResult) {
// Parse multi delete XML response
rmResult := &deleteMultiObjectsResult{}
err := xmlDecoder(body, rmResult)
if err != nil {
resultCh <- RemoveObjectResult{ObjectName: "", Err: err}
return
}
// Fill deletion that returned success
for _, obj := range rmResult.DeletedObjects {
resultCh <- RemoveObjectResult{
ObjectName: obj.Key,
// Only filled with versioned buckets
ObjectVersionID: obj.VersionID,
DeleteMarker: obj.DeleteMarker,
DeleteMarkerVersionID: obj.DeleteMarkerVersionID,
}
}
// Fill deletion that returned an error.
for _, obj := range rmResult.UnDeletedObjects {
// Version does not exist is not an error ignore and continue.
switch obj.Code {
case InvalidArgument, NoSuchVersion:
continue
}
resultCh <- RemoveObjectResult{
ObjectName: obj.Key,
ObjectVersionID: obj.VersionID,
Err: ErrorResponse{
Code: obj.Code,
Message: obj.Message,
},
}
}
}
// RemoveObjectsOptions represents options specified by user for RemoveObjects call
type RemoveObjectsOptions struct {
GovernanceBypass bool
}
// RemoveObjects removes multiple objects from a bucket while
// it is possible to specify objects versions which are received from
// objectsCh. Remove failures are sent back via error channel.
func (c *Client) RemoveObjects(ctx context.Context, bucketName string, objectsCh <-chan ObjectInfo, opts RemoveObjectsOptions) <-chan RemoveObjectError {
errorCh := make(chan RemoveObjectError, 1)
// Validate if bucket name is valid.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
defer close(errorCh)
errorCh <- RemoveObjectError{
Err: err,
}
return errorCh
}
// Validate objects channel to be properly allocated.
if objectsCh == nil {
defer close(errorCh)
errorCh <- RemoveObjectError{
Err: errInvalidArgument("Objects channel cannot be nil"),
}
return errorCh
}
resultCh := make(chan RemoveObjectResult, 1)
go c.removeObjects(ctx, bucketName, objectsCh, resultCh, opts)
go func() {
defer close(errorCh)
for res := range resultCh {
// Send only errors to the error channel
if res.Err == nil {
continue
}
errorCh <- RemoveObjectError{
ObjectName: res.ObjectName,
VersionID: res.ObjectVersionID,
Err: res.Err,
}
}
}()
return errorCh
}
// RemoveObjectsWithIter bulk deletes multiple objects from a bucket.
// Objects (with optional versions) to be removed must be provided with
// an iterator. Objects are removed asynchronously and results must be
// consumed. If the returned result iterator is stopped, the context is
// canceled, or a remote call failed, the provided iterator will no
// longer accept more objects.
func (c *Client) RemoveObjectsWithIter(ctx context.Context, bucketName string, objectsIter iter.Seq[ObjectInfo], opts RemoveObjectsOptions) (iter.Seq[RemoveObjectResult], error) {
// Validate if bucket name is valid.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, err
}
// Validate objects channel to be properly allocated.
if objectsIter == nil {
return nil, errInvalidArgument("Objects iter can never by nil")
}
return func(yield func(RemoveObjectResult) bool) {
select {
case <-ctx.Done():
return
default:
}
c.removeObjectsIter(ctx, bucketName, objectsIter, yield, opts)
}, nil
}
// RemoveObjectsWithResult removes multiple objects from a bucket while
// it is possible to specify objects versions which are received from
// objectsCh. Remove results, successes and failures are sent back via
// RemoveObjectResult channel
func (c *Client) RemoveObjectsWithResult(ctx context.Context, bucketName string, objectsCh <-chan ObjectInfo, opts RemoveObjectsOptions) <-chan RemoveObjectResult {
resultCh := make(chan RemoveObjectResult, 1)
// Validate if bucket name is valid.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
defer close(resultCh)
resultCh <- RemoveObjectResult{
Err: err,
}
return resultCh
}
// Validate objects channel to be properly allocated.
if objectsCh == nil {
defer close(resultCh)
resultCh <- RemoveObjectResult{
Err: errInvalidArgument("Objects channel cannot be nil"),
}
return resultCh
}
go c.removeObjects(ctx, bucketName, objectsCh, resultCh, opts)
return resultCh
}
// Return true if the character is within the allowed characters in an XML 1.0 document
// The list of allowed characters can be found here: https://www.w3.org/TR/xml/#charsets
func validXMLChar(r rune) (ok bool) {
return r == 0x09 ||
r == 0x0A ||
r == 0x0D ||
r >= 0x20 && r <= 0xD7FF ||
r >= 0xE000 && r <= 0xFFFD ||
r >= 0x10000 && r <= 0x10FFFF
}
func hasInvalidXMLChar(str string) bool {
for _, s := range str {
if !validXMLChar(s) {
return true
}
}
return false
}
// Generate and call MultiDelete S3 requests based on entries received from the iterator.
func (c *Client) removeObjectsIter(ctx context.Context, bucketName string, objectsIter iter.Seq[ObjectInfo], yield func(RemoveObjectResult) bool, opts RemoveObjectsOptions) {
// NOTE: GCS does not support multi-object delete, use single DELETE requests.
if !c.useMultiDeleteForBulkDelete() {
c.removeObjectsSingleIter(ctx, bucketName, objectsIter, yield, opts)
return
}
maxEntries := 1000
urlValues := make(url.Values)
urlValues.Set("delete", "")
// Build headers.
headers := make(http.Header)
if opts.GovernanceBypass {
// Set the bypass goverenance retention header
headers.Set(amzBypassGovernance, "true")
}
processRemoveMultiObjectsResponseIter := func(batch []ObjectInfo, yield func(RemoveObjectResult) bool) bool {
if len(batch) == 0 {
return false
}
// Generate remove multi objects XML request
removeBytes := generateRemoveMultiObjectsRequest(batch)
// Execute POST on bucket to remove objects.
resp, err := c.executeMethod(ctx, http.MethodPost, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(removeBytes),
contentLength: int64(len(removeBytes)),
contentMD5Base64: sumMD5Base64(removeBytes),
contentSHA256Hex: sum256Hex(removeBytes),
customHeader: headers,
})
if resp != nil {
defer closeResponse(resp)
if resp.StatusCode != http.StatusOK {
err = httpRespToErrorResponse(resp, bucketName, "")
}
}
if err != nil {
for _, b := range batch {
if !yield(RemoveObjectResult{
ObjectName: b.Key,
ObjectVersionID: b.VersionID,
Err: err,
}) {
return false
}
}
return false
}
// Parse multi delete XML response
rmResult := &deleteMultiObjectsResult{}
if err := xmlDecoder(resp.Body, rmResult); err != nil {
yield(RemoveObjectResult{ObjectName: "", Err: err})
return false
}
// Fill deletion that returned an error.
for _, obj := range rmResult.UnDeletedObjects {
// Version does not exist is not an error ignore and continue.
switch obj.Code {
case "InvalidArgument", "NoSuchVersion":
continue
}
if !yield(RemoveObjectResult{
ObjectName: obj.Key,
ObjectVersionID: obj.VersionID,
Err: ErrorResponse{
Code: obj.Code,
Message: obj.Message,
},
}) {
return false
}
}
// Fill deletion that returned success
for _, obj := range rmResult.DeletedObjects {
if !yield(RemoveObjectResult{
ObjectName: obj.Key,
// Only filled with versioned buckets
ObjectVersionID: obj.VersionID,
DeleteMarker: obj.DeleteMarker,
DeleteMarkerVersionID: obj.DeleteMarkerVersionID,
}) {
return false
}
}
return true
}
var batch []ObjectInfo
next, stop := iter.Pull(objectsIter)
defer stop()
for {
// Loop over entries by 1000 and call MultiDelete requests
object, ok := next()
if !ok {
// delete the remaining batch.
processRemoveMultiObjectsResponseIter(batch, yield)
return
}
if hasInvalidXMLChar(object.Key) {
// Use single DELETE so the object name will be in the request URL instead of the multi-delete XML document.
removeResult := c.removeObject(ctx, bucketName, object.Key, RemoveObjectOptions{
VersionID: object.VersionID,
GovernanceBypass: opts.GovernanceBypass,
})
if err := removeResult.Err; err != nil {
// Version does not exist is not an error ignore and continue.
switch ToErrorResponse(err).Code {
case "InvalidArgument", "NoSuchVersion":
continue
}
}
if !yield(removeResult) {
return
}
continue
}
batch = append(batch, object)
if len(batch) < maxEntries {
continue
}
if !processRemoveMultiObjectsResponseIter(batch, yield) {
return
}
batch = batch[:0]
}
}
// Generate and call MultiDelete S3 requests based on entries received from objectsCh
func (c *Client) removeObjects(ctx context.Context, bucketName string, objectsCh <-chan ObjectInfo, resultCh chan<- RemoveObjectResult, opts RemoveObjectsOptions) {
// Close result channel when delete finishes.
defer close(resultCh)
// NOTE: GCS does not support multi-object delete, use single DELETE requests.
if !c.useMultiDeleteForBulkDelete() {
c.removeObjectsSingle(ctx, bucketName, objectsCh, resultCh, opts)
return
}
maxEntries := 1000
finish := false
urlValues := make(url.Values)
urlValues.Set("delete", "")
// Loop over entries by 1000 and call MultiDelete requests
for !finish {
count := 0
var batch []ObjectInfo
// Try to gather 1000 entries
for object := range objectsCh {
if hasInvalidXMLChar(object.Key) {
// Use single DELETE so the object name will be in the request URL instead of the multi-delete XML document.
removeResult := c.removeObject(ctx, bucketName, object.Key, RemoveObjectOptions{
VersionID: object.VersionID,
GovernanceBypass: opts.GovernanceBypass,
})
if err := removeResult.Err; err != nil {
// Version does not exist is not an error ignore and continue.
switch ToErrorResponse(err).Code {
case InvalidArgument, NoSuchVersion:
continue
}
resultCh <- removeResult
}
resultCh <- removeResult
continue
}
batch = append(batch, object)
if count++; count >= maxEntries {
break
}
}
if count == 0 {
// Multi Objects Delete API doesn't accept empty object list, quit immediately
break
}
if count < maxEntries {
// We didn't have 1000 entries, so this is the last batch
finish = true
}
// Build headers.
headers := make(http.Header)
if opts.GovernanceBypass {
// Set the bypass goverenance retention header
headers.Set(amzBypassGovernance, "true")
}
// Generate remove multi objects XML request
removeBytes := generateRemoveMultiObjectsRequest(batch)
// Execute POST on bucket to remove objects.
resp, err := c.executeMethod(ctx, http.MethodPost, requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentBody: bytes.NewReader(removeBytes),
contentLength: int64(len(removeBytes)),
contentMD5Base64: sumMD5Base64(removeBytes),
contentSHA256Hex: sum256Hex(removeBytes),
customHeader: headers,
expect200OKWithError: true,
})
if resp != nil && resp.StatusCode != http.StatusOK {
err = httpRespToErrorResponse(resp, bucketName, "")
}
if err != nil {
for _, b := range batch {
resultCh <- RemoveObjectResult{
ObjectName: b.Key,
ObjectVersionID: b.VersionID,
Err: err,
}
}
continue
}
// Process multiobjects remove xml response
processRemoveMultiObjectsResponse(resp.Body, resultCh)
closeResponse(resp)
}
}
// removeObjectsSingle deletes objects one by one using single DELETE requests.
// This is used for endpoints that do not support multi-object delete (e.g., GCS).
func (c *Client) removeObjectsSingle(ctx context.Context, bucketName string, objectsCh <-chan ObjectInfo, resultCh chan<- RemoveObjectResult, opts RemoveObjectsOptions) {
for {
select {
case <-ctx.Done():
return
case object, ok := <-objectsCh:
if !ok {
return
}
removeResult := c.removeObject(ctx, bucketName, object.Key, RemoveObjectOptions{
VersionID: object.VersionID,
GovernanceBypass: opts.GovernanceBypass,
})
if err := removeResult.Err; err != nil {
// Version/object does not exist is not an error, ignore and continue.
switch ToErrorResponse(err).Code {
case NoSuchVersion, NoSuchKey:
continue
}
}
select {
case <-ctx.Done():
return
case resultCh <- removeResult:
}
}
}
}
// removeObjectsSingleIter deletes objects one by one using single DELETE requests.
// This is used for endpoints that do not support multi-object delete (e.g., GCS).
func (c *Client) removeObjectsSingleIter(ctx context.Context, bucketName string, objectsIter iter.Seq[ObjectInfo], yield func(RemoveObjectResult) bool, opts RemoveObjectsOptions) {
for object := range objectsIter {
select {
case <-ctx.Done():
return
default:
}
removeResult := c.removeObject(ctx, bucketName, object.Key, RemoveObjectOptions{
VersionID: object.VersionID,
GovernanceBypass: opts.GovernanceBypass,
})
if err := removeResult.Err; err != nil {
// Version/object does not exist is not an error, ignore and continue.
switch ToErrorResponse(err).Code {
case NoSuchVersion, NoSuchKey:
continue
}
}
if !yield(removeResult) {
return
}
}
}
// RemoveIncompleteUpload aborts an partially uploaded object.
func (c *Client) RemoveIncompleteUpload(ctx context.Context, bucketName, objectName string) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return err
}
// Find multipart upload ids of the object to be aborted.
uploadIDs, err := c.findUploadIDs(ctx, bucketName, objectName)
if err != nil {
return err
}
for _, uploadID := range uploadIDs {
// abort incomplete multipart upload, based on the upload id passed.
err := c.abortMultipartUpload(ctx, bucketName, objectName, uploadID)
if err != nil {
return err
}
}
return nil
}
// abortMultipartUpload aborts a multipart upload for the given
// uploadID, all previously uploaded parts are deleted.
func (c *Client) abortMultipartUpload(ctx context.Context, bucketName, objectName, uploadID string) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return err
}
// Initialize url queries.
urlValues := make(url.Values)
urlValues.Set("uploadId", uploadID)
// Execute DELETE on multipart upload.
resp, err := c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusNoContent {
// Abort has no response body, handle it for any errors.
var errorResponse ErrorResponse
switch resp.StatusCode {
case http.StatusNotFound:
// This is needed specifically for abort and it cannot
// be converged into default case.
errorResponse = ErrorResponse{
Code: NoSuchUpload,
Message: "The specified multipart upload does not exist.",
BucketName: bucketName,
Key: objectName,
RequestID: resp.Header.Get("x-amz-request-id"),
HostID: resp.Header.Get("x-amz-id-2"),
Region: resp.Header.Get("x-amz-bucket-region"),
}
default:
return httpRespToErrorResponse(resp, bucketName, objectName)
}
return errorResponse
}
}
return nil
}
+182
View File
@@ -0,0 +1,182 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* (C) 2018-2021 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"net/http"
"net/url"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/tags"
)
// RestoreType represents the restore request type
type RestoreType string
const (
// RestoreSelect represents the restore SELECT operation
RestoreSelect = RestoreType("SELECT")
)
// TierType represents a retrieval tier
type TierType string
const (
// TierStandard is the standard retrieval tier
TierStandard = TierType("Standard")
// TierBulk is the bulk retrieval tier
TierBulk = TierType("Bulk")
// TierExpedited is the expedited retrieval tier
TierExpedited = TierType("Expedited")
)
// GlacierJobParameters represents the retrieval tier parameter
type GlacierJobParameters struct {
Tier TierType
}
// Encryption contains the type of server-side encryption used during object retrieval
type Encryption struct {
EncryptionType string
KMSContext string
KMSKeyID string `xml:"KMSKeyId"`
}
// MetadataEntry represents a metadata information of the restored object.
type MetadataEntry struct {
Name string
Value string
}
// S3 holds properties of the copy of the archived object
type S3 struct {
AccessControlList *AccessControlList `xml:"AccessControlList,omitempty"`
BucketName string
Prefix string
CannedACL *string `xml:"CannedACL,omitempty"`
Encryption *Encryption `xml:"Encryption,omitempty"`
StorageClass *string `xml:"StorageClass,omitempty"`
Tagging *tags.Tags `xml:"Tagging,omitempty"`
UserMetadata *MetadataEntry `xml:"UserMetadata,omitempty"`
}
// SelectParameters holds the select request parameters
type SelectParameters struct {
XMLName xml.Name `xml:"SelectParameters"`
ExpressionType QueryExpressionType
Expression string
InputSerialization SelectObjectInputSerialization
OutputSerialization SelectObjectOutputSerialization
}
// OutputLocation holds properties of the copy of the archived object
type OutputLocation struct {
XMLName xml.Name `xml:"OutputLocation"`
S3 S3 `xml:"S3"`
}
// RestoreRequest holds properties of the restore object request
type RestoreRequest struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ RestoreRequest"`
Type *RestoreType `xml:"Type,omitempty"`
Tier *TierType `xml:"Tier,omitempty"`
Days *int `xml:"Days,omitempty"`
GlacierJobParameters *GlacierJobParameters `xml:"GlacierJobParameters,omitempty"`
Description *string `xml:"Description,omitempty"`
SelectParameters *SelectParameters `xml:"SelectParameters,omitempty"`
OutputLocation *OutputLocation `xml:"OutputLocation,omitempty"`
}
// SetDays sets the days parameter of the restore request
func (r *RestoreRequest) SetDays(v int) {
r.Days = &v
}
// SetGlacierJobParameters sets the GlacierJobParameters of the restore request
func (r *RestoreRequest) SetGlacierJobParameters(v GlacierJobParameters) {
r.GlacierJobParameters = &v
}
// SetType sets the type of the restore request
func (r *RestoreRequest) SetType(v RestoreType) {
r.Type = &v
}
// SetTier sets the retrieval tier of the restore request
func (r *RestoreRequest) SetTier(v TierType) {
r.Tier = &v
}
// SetDescription sets the description of the restore request
func (r *RestoreRequest) SetDescription(v string) {
r.Description = &v
}
// SetSelectParameters sets SelectParameters of the restore select request
func (r *RestoreRequest) SetSelectParameters(v SelectParameters) {
r.SelectParameters = &v
}
// SetOutputLocation sets the properties of the copy of the archived object
func (r *RestoreRequest) SetOutputLocation(v OutputLocation) {
r.OutputLocation = &v
}
// RestoreObject is a implementation of https://docs.aws.amazon.com/AmazonS3/latest/API/API_RestoreObject.html AWS S3 API
func (c *Client) RestoreObject(ctx context.Context, bucketName, objectName, versionID string, req RestoreRequest) error {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return err
}
restoreRequestBytes, err := xml.Marshal(req)
if err != nil {
return err
}
urlValues := make(url.Values)
urlValues.Set("restore", "")
if versionID != "" {
urlValues.Set("versionId", versionID)
}
// Execute POST on bucket/object.
resp, err := c.executeMethod(ctx, http.MethodPost, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentMD5Base64: sumMD5Base64(restoreRequestBytes),
contentSHA256Hex: sum256Hex(restoreRequestBytes),
contentBody: bytes.NewReader(restoreRequestBytes),
contentLength: int64(len(restoreRequestBytes)),
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp.StatusCode != http.StatusAccepted && resp.StatusCode != http.StatusOK {
return httpRespToErrorResponse(resp, bucketName, "")
}
return nil
}
+509
View File
@@ -0,0 +1,509 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"encoding/base64"
"encoding/xml"
"errors"
"io"
"reflect"
"time"
)
// listAllMyBucketsResult container for listBuckets response.
type listAllMyBucketsResult struct {
// Container for one or more buckets.
Buckets struct {
Bucket []BucketInfo
}
Owner owner
}
// listAllMyDirectoryBucketsResult container for listDirectoryBuckets response.
type listAllMyDirectoryBucketsResult struct {
Buckets struct {
Bucket []BucketInfo
}
ContinuationToken string
}
// owner container for bucket owner information.
type owner struct {
DisplayName string
ID string
}
// CommonPrefix container for prefix response.
type CommonPrefix struct {
Prefix string
}
// ListBucketV2Result container for listObjects response version 2.
type ListBucketV2Result struct {
// A response can contain CommonPrefixes only if you have
// specified a delimiter.
CommonPrefixes []CommonPrefix
// Metadata about each object returned.
Contents []ObjectInfo
Delimiter string
// Encoding type used to encode object keys in the response.
EncodingType string
// A flag that indicates whether or not ListObjects returned all of the results
// that satisfied the search criteria.
IsTruncated bool
MaxKeys int64
Name string
// Hold the token that will be sent in the next request to fetch the next group of keys
NextContinuationToken string
ContinuationToken string
Prefix string
// FetchOwner and StartAfter are currently not used
FetchOwner string
StartAfter string
}
// Version is an element in the list object versions response
type Version struct {
ETag string
IsLatest bool
Key string
LastModified time.Time
Owner Owner
Size int64
StorageClass string
VersionID string `xml:"VersionId"`
// x-amz-meta-* headers stripped "x-amz-meta-" prefix containing the first value.
// Only returned by MinIO servers.
UserMetadata StringMap `json:"userMetadata,omitempty"`
// x-amz-tagging values in their k/v values.
// Only returned by MinIO servers.
UserTags URLMap `json:"userTags,omitempty" xml:"UserTags"`
Internal *struct {
K int // Data blocks
M int // Parity blocks
} `xml:"Internal"`
// Checksum values. Only returned by AiStor servers.
ChecksumCRC32 string `xml:",omitempty"`
ChecksumCRC32C string `xml:",omitempty"`
ChecksumSHA1 string `xml:",omitempty"`
ChecksumSHA256 string `xml:",omitempty"`
ChecksumCRC64NVME string `xml:",omitempty"`
ChecksumMD5 string `xml:",omitempty"`
ChecksumSHA512 string `xml:",omitempty"`
ChecksumXXHash64 string `xml:"ChecksumXXHASH64,omitempty"`
ChecksumXXHash3 string `xml:"ChecksumXXHASH3,omitempty"`
ChecksumXXHash128 string `xml:"ChecksumXXHASH128,omitempty"`
ChecksumAlgorithm string `xml:",omitempty"`
ChecksumType string `xml:",omitempty"`
isDeleteMarker bool
}
// ListVersionsResult is an element in the list object versions response
// and has a special Unmarshaler because we need to preserver the order
// of <Version> and <DeleteMarker> in ListVersionsResult.Versions slice
type ListVersionsResult struct {
Versions []Version
CommonPrefixes []CommonPrefix
Name string
Prefix string
Delimiter string
MaxKeys int64
EncodingType string
IsTruncated bool
KeyMarker string
VersionIDMarker string
NextKeyMarker string
NextVersionIDMarker string
}
// UnmarshalXML is a custom unmarshal code for the response of ListObjectVersions, the custom
// code will unmarshal <Version> and <DeleteMarker> tags and save them in Versions field to
// preserve the lexical order of the listing.
func (l *ListVersionsResult) UnmarshalXML(d *xml.Decoder, _ xml.StartElement) (err error) {
for {
// Read tokens from the XML document in a stream.
t, err := d.Token()
if err != nil {
if err == io.EOF {
break
}
return err
}
se, ok := t.(xml.StartElement)
if ok {
tagName := se.Name.Local
switch tagName {
case "Name", "Prefix",
"Delimiter", "EncodingType",
"KeyMarker", "NextKeyMarker":
var s string
if err = d.DecodeElement(&s, &se); err != nil {
return err
}
v := reflect.ValueOf(l).Elem().FieldByName(tagName)
if v.IsValid() {
v.SetString(s)
}
case "VersionIdMarker":
// VersionIdMarker is a special case because of 'Id' instead of 'ID' in field name
var s string
if err = d.DecodeElement(&s, &se); err != nil {
return err
}
l.VersionIDMarker = s
case "NextVersionIdMarker":
// NextVersionIdMarker is a special case because of 'Id' instead of 'ID' in field name
var s string
if err = d.DecodeElement(&s, &se); err != nil {
return err
}
l.NextVersionIDMarker = s
case "IsTruncated": // bool
var b bool
if err = d.DecodeElement(&b, &se); err != nil {
return err
}
l.IsTruncated = b
case "MaxKeys": // int64
var i int64
if err = d.DecodeElement(&i, &se); err != nil {
return err
}
l.MaxKeys = i
case "CommonPrefixes":
var cp CommonPrefix
if err = d.DecodeElement(&cp, &se); err != nil {
return err
}
l.CommonPrefixes = append(l.CommonPrefixes, cp)
case "DeleteMarker", "Version":
var v Version
if err = d.DecodeElement(&v, &se); err != nil {
return err
}
if tagName == "DeleteMarker" {
v.isDeleteMarker = true
}
l.Versions = append(l.Versions, v)
default:
return errors.New("unrecognized option:" + tagName)
}
}
}
return nil
}
// ListBucketResult container for listObjects response.
type ListBucketResult struct {
// A response can contain CommonPrefixes only if you have
// specified a delimiter.
CommonPrefixes []CommonPrefix
// Metadata about each object returned.
Contents []ObjectInfo
Delimiter string
// Encoding type used to encode object keys in the response.
EncodingType string
// A flag that indicates whether or not ListObjects returned all of the results
// that satisfied the search criteria.
IsTruncated bool
Marker string
MaxKeys int64
Name string
// When response is truncated (the IsTruncated element value in
// the response is true), you can use the key name in this field
// as marker in the subsequent request to get next set of objects.
// Object storage lists objects in alphabetical order Note: This
// element is returned only if you have delimiter request
// parameter specified. If response does not include the NextMaker
// and it is truncated, you can use the value of the last Key in
// the response as the marker in the subsequent request to get the
// next set of object keys.
NextMarker string
Prefix string
}
// ListMultipartUploadsResult container for ListMultipartUploads response
type ListMultipartUploadsResult struct {
Bucket string
KeyMarker string
UploadIDMarker string `xml:"UploadIdMarker"`
NextKeyMarker string
NextUploadIDMarker string `xml:"NextUploadIdMarker"`
EncodingType string
MaxUploads int64
IsTruncated bool
Uploads []ObjectMultipartInfo `xml:"Upload"`
Prefix string
Delimiter string
// A response can contain CommonPrefixes only if you specify a delimiter.
CommonPrefixes []CommonPrefix
}
// initiator container for who initiated multipart upload.
type initiator struct {
ID string
DisplayName string
}
// copyObjectResult container for copy object response.
type copyObjectResult struct {
ETag string
LastModified time.Time // time string format "2006-01-02T15:04:05.000Z"
}
// ObjectPart container for particular part of an object.
type ObjectPart struct {
// Part number identifies the part.
PartNumber int
// Date and time the part was uploaded.
LastModified time.Time
// Entity tag returned when the part was uploaded, usually md5sum
// of the part.
ETag string
// Size of the uploaded part data.
Size int64
// Checksum values of each part.
ChecksumCRC32 string
ChecksumCRC32C string
ChecksumSHA1 string
ChecksumSHA256 string
ChecksumCRC64NVME string
ChecksumMD5 string
ChecksumSHA512 string
ChecksumXXHash64 string `xml:"ChecksumXXHASH64,omitempty"`
ChecksumXXHash3 string `xml:"ChecksumXXHASH3,omitempty"`
ChecksumXXHash128 string `xml:"ChecksumXXHASH128,omitempty"`
}
// Checksum will return the checksum for the given type.
// Will return the empty string if not set.
func (c ObjectPart) Checksum(t ChecksumType) string {
switch {
case t.Is(ChecksumCRC32C):
return c.ChecksumCRC32C
case t.Is(ChecksumCRC32):
return c.ChecksumCRC32
case t.Is(ChecksumSHA1):
return c.ChecksumSHA1
case t.Is(ChecksumSHA256):
return c.ChecksumSHA256
case t.Is(ChecksumCRC64NVME):
return c.ChecksumCRC64NVME
case t.Is(ChecksumMD5):
return c.ChecksumMD5
case t.Is(ChecksumSHA512):
return c.ChecksumSHA512
case t.Is(ChecksumXXHash64):
return c.ChecksumXXHash64
case t.Is(ChecksumXXHash3):
return c.ChecksumXXHash3
case t.Is(ChecksumXXHash128):
return c.ChecksumXXHash128
}
return ""
}
// ChecksumRaw returns the decoded checksum from the part.
func (c ObjectPart) ChecksumRaw(t ChecksumType) ([]byte, error) {
b64 := c.Checksum(t)
if b64 == "" {
return nil, errors.New("no checksum set")
}
decoded, err := base64.StdEncoding.DecodeString(b64)
if err != nil {
return nil, err
}
if len(decoded) != t.RawByteLen() {
return nil, errors.New("checksum length mismatch")
}
return decoded, nil
}
// ListObjectPartsResult container for ListObjectParts response.
type ListObjectPartsResult struct {
Bucket string
Key string
UploadID string `xml:"UploadId"`
Initiator initiator
Owner owner
StorageClass string
PartNumberMarker int
NextPartNumberMarker int
MaxParts int
// ChecksumAlgorithm will be CRC32, CRC32C, etc.
ChecksumAlgorithm string
// ChecksumType is FULL_OBJECT or COMPOSITE (assume COMPOSITE when unset)
ChecksumType string
// Indicates whether the returned list of parts is truncated.
IsTruncated bool
ObjectParts []ObjectPart `xml:"Part"`
EncodingType string
}
// initiateMultipartUploadResult container for InitiateMultiPartUpload
// response.
type initiateMultipartUploadResult struct {
Bucket string
Key string
UploadID string `xml:"UploadId"`
}
// completeMultipartUploadResult container for completed multipart
// upload response.
type completeMultipartUploadResult struct {
Location string
Bucket string
Key string
ETag string
// Checksum values, hash of hashes of parts.
ChecksumCRC32 string
ChecksumCRC32C string
ChecksumSHA1 string
ChecksumSHA256 string
ChecksumCRC64NVME string
ChecksumMD5 string
ChecksumSHA512 string
ChecksumXXHash64 string `xml:"ChecksumXXHASH64"`
ChecksumXXHash3 string `xml:"ChecksumXXHASH3"`
ChecksumXXHash128 string `xml:"ChecksumXXHASH128"`
ChecksumType string
}
// CompletePart sub container lists individual part numbers and their
// md5sum, part of completeMultipartUpload.
type CompletePart struct {
// Part number identifies the part.
PartNumber int
ETag string
// Checksum values
ChecksumCRC32 string `xml:"ChecksumCRC32,omitempty"`
ChecksumCRC32C string `xml:"ChecksumCRC32C,omitempty"`
ChecksumSHA1 string `xml:"ChecksumSHA1,omitempty"`
ChecksumSHA256 string `xml:"ChecksumSHA256,omitempty"`
ChecksumCRC64NVME string `xml:",omitempty"`
ChecksumMD5 string `xml:",omitempty"`
ChecksumSHA512 string `xml:",omitempty"`
ChecksumXXHash64 string `xml:"ChecksumXXHASH64,omitempty"`
ChecksumXXHash3 string `xml:"ChecksumXXHASH3,omitempty"`
ChecksumXXHash128 string `xml:"ChecksumXXHASH128,omitempty"`
}
// Checksum will return the checksum for the given type.
// Will return the empty string if not set.
func (c CompletePart) Checksum(t ChecksumType) string {
switch {
case t.Is(ChecksumCRC32C):
return c.ChecksumCRC32C
case t.Is(ChecksumCRC32):
return c.ChecksumCRC32
case t.Is(ChecksumSHA1):
return c.ChecksumSHA1
case t.Is(ChecksumSHA256):
return c.ChecksumSHA256
case t.Is(ChecksumCRC64NVME):
return c.ChecksumCRC64NVME
case t.Is(ChecksumMD5):
return c.ChecksumMD5
case t.Is(ChecksumSHA512):
return c.ChecksumSHA512
case t.Is(ChecksumXXHash64):
return c.ChecksumXXHash64
case t.Is(ChecksumXXHash3):
return c.ChecksumXXHash3
case t.Is(ChecksumXXHash128):
return c.ChecksumXXHash128
}
return ""
}
// completeMultipartUpload container for completing multipart upload.
type completeMultipartUpload struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CompleteMultipartUpload" json:"-"`
Parts []CompletePart `xml:"Part"`
}
// createBucketConfiguration container for bucket configuration.
type createBucketConfiguration struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CreateBucketConfiguration" json:"-"`
Location string `xml:"LocationConstraint"`
}
// deleteObject container for Delete element in MultiObjects Delete XML request
type deleteObject struct {
Key string
VersionID string `xml:"VersionId,omitempty"`
}
// deletedObject container for Deleted element in MultiObjects Delete XML response
type deletedObject struct {
Key string
VersionID string `xml:"VersionId,omitempty"`
// These fields are ignored.
DeleteMarker bool
DeleteMarkerVersionID string `xml:"DeleteMarkerVersionId,omitempty"`
}
// nonDeletedObject container for Error element (failed deletion) in MultiObjects Delete XML response
type nonDeletedObject struct {
Key string
Code string
Message string
VersionID string `xml:"VersionId"`
}
// deletedMultiObjects container for MultiObjects Delete XML request
type deleteMultiObjects struct {
XMLName xml.Name `xml:"Delete"`
Quiet bool
Objects []deleteObject `xml:"Object"`
}
// deletedMultiObjectsResult container for MultiObjects Delete XML response
type deleteMultiObjectsResult struct {
XMLName xml.Name `xml:"DeleteResult"`
DeletedObjects []deletedObject `xml:"Deleted"`
UnDeletedObjects []nonDeletedObject `xml:"Error"`
}
+755
View File
@@ -0,0 +1,755 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* (C) 2018-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/binary"
"encoding/xml"
"errors"
"fmt"
"hash"
"hash/crc32"
"io"
"net/http"
"net/url"
"strings"
"github.com/minio/minio-go/v7/pkg/encrypt"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// CSVFileHeaderInfo - is the parameter for whether to utilize headers.
type CSVFileHeaderInfo string
// Constants for file header info.
const (
CSVFileHeaderInfoNone CSVFileHeaderInfo = "NONE"
CSVFileHeaderInfoIgnore CSVFileHeaderInfo = "IGNORE"
CSVFileHeaderInfoUse CSVFileHeaderInfo = "USE"
)
// SelectCompressionType - is the parameter for what type of compression is
// present
type SelectCompressionType string
// Constants for compression types under select API.
const (
SelectCompressionNONE SelectCompressionType = "NONE"
SelectCompressionGZIP SelectCompressionType = "GZIP"
SelectCompressionBZIP SelectCompressionType = "BZIP2"
// Non-standard compression schemes, supported by MinIO hosts:
SelectCompressionZSTD SelectCompressionType = "ZSTD" // Zstandard compression.
SelectCompressionLZ4 SelectCompressionType = "LZ4" // LZ4 Stream
SelectCompressionS2 SelectCompressionType = "S2" // S2 Stream
SelectCompressionSNAPPY SelectCompressionType = "SNAPPY" // Snappy stream
)
// CSVQuoteFields - is the parameter for how CSV fields are quoted.
type CSVQuoteFields string
// Constants for csv quote styles.
const (
CSVQuoteFieldsAlways CSVQuoteFields = "Always"
CSVQuoteFieldsAsNeeded CSVQuoteFields = "AsNeeded"
)
// QueryExpressionType - is of what syntax the expression is, this should only
// be SQL
type QueryExpressionType string
// Constants for expression type.
const (
QueryExpressionTypeSQL QueryExpressionType = "SQL"
)
// JSONType determines json input serialization type.
type JSONType string
// Constants for JSONTypes.
const (
JSONDocumentType JSONType = "DOCUMENT"
JSONLinesType JSONType = "LINES"
)
// ParquetInputOptions parquet input specific options
type ParquetInputOptions struct{}
// CSVInputOptions csv input specific options
type CSVInputOptions struct {
FileHeaderInfo CSVFileHeaderInfo
fileHeaderInfoSet bool
RecordDelimiter string
recordDelimiterSet bool
FieldDelimiter string
fieldDelimiterSet bool
QuoteCharacter string
quoteCharacterSet bool
QuoteEscapeCharacter string
quoteEscapeCharacterSet bool
Comments string
commentsSet bool
}
// SetFileHeaderInfo sets the file header info in the CSV input options
func (c *CSVInputOptions) SetFileHeaderInfo(val CSVFileHeaderInfo) {
c.FileHeaderInfo = val
c.fileHeaderInfoSet = true
}
// SetRecordDelimiter sets the record delimiter in the CSV input options
func (c *CSVInputOptions) SetRecordDelimiter(val string) {
c.RecordDelimiter = val
c.recordDelimiterSet = true
}
// SetFieldDelimiter sets the field delimiter in the CSV input options
func (c *CSVInputOptions) SetFieldDelimiter(val string) {
c.FieldDelimiter = val
c.fieldDelimiterSet = true
}
// SetQuoteCharacter sets the quote character in the CSV input options
func (c *CSVInputOptions) SetQuoteCharacter(val string) {
c.QuoteCharacter = val
c.quoteCharacterSet = true
}
// SetQuoteEscapeCharacter sets the quote escape character in the CSV input options
func (c *CSVInputOptions) SetQuoteEscapeCharacter(val string) {
c.QuoteEscapeCharacter = val
c.quoteEscapeCharacterSet = true
}
// SetComments sets the comments character in the CSV input options
func (c *CSVInputOptions) SetComments(val string) {
c.Comments = val
c.commentsSet = true
}
// MarshalXML - produces the xml representation of the CSV input options struct
func (c CSVInputOptions) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if err := e.EncodeToken(start); err != nil {
return err
}
if c.FileHeaderInfo != "" || c.fileHeaderInfoSet {
if err := e.EncodeElement(c.FileHeaderInfo, xml.StartElement{Name: xml.Name{Local: "FileHeaderInfo"}}); err != nil {
return err
}
}
if c.RecordDelimiter != "" || c.recordDelimiterSet {
if err := e.EncodeElement(c.RecordDelimiter, xml.StartElement{Name: xml.Name{Local: "RecordDelimiter"}}); err != nil {
return err
}
}
if c.FieldDelimiter != "" || c.fieldDelimiterSet {
if err := e.EncodeElement(c.FieldDelimiter, xml.StartElement{Name: xml.Name{Local: "FieldDelimiter"}}); err != nil {
return err
}
}
if c.QuoteCharacter != "" || c.quoteCharacterSet {
if err := e.EncodeElement(c.QuoteCharacter, xml.StartElement{Name: xml.Name{Local: "QuoteCharacter"}}); err != nil {
return err
}
}
if c.QuoteEscapeCharacter != "" || c.quoteEscapeCharacterSet {
if err := e.EncodeElement(c.QuoteEscapeCharacter, xml.StartElement{Name: xml.Name{Local: "QuoteEscapeCharacter"}}); err != nil {
return err
}
}
if c.Comments != "" || c.commentsSet {
if err := e.EncodeElement(c.Comments, xml.StartElement{Name: xml.Name{Local: "Comments"}}); err != nil {
return err
}
}
return e.EncodeToken(xml.EndElement{Name: start.Name})
}
// CSVOutputOptions csv output specific options
type CSVOutputOptions struct {
QuoteFields CSVQuoteFields
quoteFieldsSet bool
RecordDelimiter string
recordDelimiterSet bool
FieldDelimiter string
fieldDelimiterSet bool
QuoteCharacter string
quoteCharacterSet bool
QuoteEscapeCharacter string
quoteEscapeCharacterSet bool
}
// SetQuoteFields sets the quote field parameter in the CSV output options
func (c *CSVOutputOptions) SetQuoteFields(val CSVQuoteFields) {
c.QuoteFields = val
c.quoteFieldsSet = true
}
// SetRecordDelimiter sets the record delimiter character in the CSV output options
func (c *CSVOutputOptions) SetRecordDelimiter(val string) {
c.RecordDelimiter = val
c.recordDelimiterSet = true
}
// SetFieldDelimiter sets the field delimiter character in the CSV output options
func (c *CSVOutputOptions) SetFieldDelimiter(val string) {
c.FieldDelimiter = val
c.fieldDelimiterSet = true
}
// SetQuoteCharacter sets the quote character in the CSV output options
func (c *CSVOutputOptions) SetQuoteCharacter(val string) {
c.QuoteCharacter = val
c.quoteCharacterSet = true
}
// SetQuoteEscapeCharacter sets the quote escape character in the CSV output options
func (c *CSVOutputOptions) SetQuoteEscapeCharacter(val string) {
c.QuoteEscapeCharacter = val
c.quoteEscapeCharacterSet = true
}
// MarshalXML - produces the xml representation of the CSVOutputOptions struct
func (c CSVOutputOptions) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if err := e.EncodeToken(start); err != nil {
return err
}
if c.QuoteFields != "" || c.quoteFieldsSet {
if err := e.EncodeElement(c.QuoteFields, xml.StartElement{Name: xml.Name{Local: "QuoteFields"}}); err != nil {
return err
}
}
if c.RecordDelimiter != "" || c.recordDelimiterSet {
if err := e.EncodeElement(c.RecordDelimiter, xml.StartElement{Name: xml.Name{Local: "RecordDelimiter"}}); err != nil {
return err
}
}
if c.FieldDelimiter != "" || c.fieldDelimiterSet {
if err := e.EncodeElement(c.FieldDelimiter, xml.StartElement{Name: xml.Name{Local: "FieldDelimiter"}}); err != nil {
return err
}
}
if c.QuoteCharacter != "" || c.quoteCharacterSet {
if err := e.EncodeElement(c.QuoteCharacter, xml.StartElement{Name: xml.Name{Local: "QuoteCharacter"}}); err != nil {
return err
}
}
if c.QuoteEscapeCharacter != "" || c.quoteEscapeCharacterSet {
if err := e.EncodeElement(c.QuoteEscapeCharacter, xml.StartElement{Name: xml.Name{Local: "QuoteEscapeCharacter"}}); err != nil {
return err
}
}
return e.EncodeToken(xml.EndElement{Name: start.Name})
}
// JSONInputOptions json input specific options
type JSONInputOptions struct {
Type JSONType
typeSet bool
}
// SetType sets the JSON type in the JSON input options
func (j *JSONInputOptions) SetType(typ JSONType) {
j.Type = typ
j.typeSet = true
}
// MarshalXML - produces the xml representation of the JSONInputOptions struct
func (j JSONInputOptions) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if err := e.EncodeToken(start); err != nil {
return err
}
if j.Type != "" || j.typeSet {
if err := e.EncodeElement(j.Type, xml.StartElement{Name: xml.Name{Local: "Type"}}); err != nil {
return err
}
}
return e.EncodeToken(xml.EndElement{Name: start.Name})
}
// JSONOutputOptions - json output specific options
type JSONOutputOptions struct {
RecordDelimiter string
recordDelimiterSet bool
}
// SetRecordDelimiter sets the record delimiter in the JSON output options
func (j *JSONOutputOptions) SetRecordDelimiter(val string) {
j.RecordDelimiter = val
j.recordDelimiterSet = true
}
// MarshalXML - produces the xml representation of the JSONOutputOptions struct
func (j JSONOutputOptions) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if err := e.EncodeToken(start); err != nil {
return err
}
if j.RecordDelimiter != "" || j.recordDelimiterSet {
if err := e.EncodeElement(j.RecordDelimiter, xml.StartElement{Name: xml.Name{Local: "RecordDelimiter"}}); err != nil {
return err
}
}
return e.EncodeToken(xml.EndElement{Name: start.Name})
}
// SelectObjectInputSerialization - input serialization parameters
type SelectObjectInputSerialization struct {
CompressionType SelectCompressionType `xml:"CompressionType,omitempty"`
Parquet *ParquetInputOptions `xml:"Parquet,omitempty"`
CSV *CSVInputOptions `xml:"CSV,omitempty"`
JSON *JSONInputOptions `xml:"JSON,omitempty"`
}
// SelectObjectOutputSerialization - output serialization parameters.
type SelectObjectOutputSerialization struct {
CSV *CSVOutputOptions `xml:"CSV,omitempty"`
JSON *JSONOutputOptions `xml:"JSON,omitempty"`
}
// SelectObjectOptions - represents the input select body
type SelectObjectOptions struct {
XMLName xml.Name `xml:"SelectObjectContentRequest" json:"-"`
ServerSideEncryption encrypt.ServerSide `xml:"-"`
Expression string
ExpressionType QueryExpressionType
InputSerialization SelectObjectInputSerialization
OutputSerialization SelectObjectOutputSerialization
RequestProgress struct {
Enabled bool
}
}
// Header returns the http.Header representation of the SelectObject options.
func (o SelectObjectOptions) Header() http.Header {
headers := make(http.Header)
if o.ServerSideEncryption != nil && o.ServerSideEncryption.Type() == encrypt.SSEC {
o.ServerSideEncryption.Marshal(headers)
}
return headers
}
// SelectObjectType - is the parameter which defines what type of object the
// operation is being performed on.
type SelectObjectType string
// Constants for input data types.
const (
SelectObjectTypeCSV SelectObjectType = "CSV"
SelectObjectTypeJSON SelectObjectType = "JSON"
SelectObjectTypeParquet SelectObjectType = "Parquet"
)
// preludeInfo is used for keeping track of necessary information from the
// prelude.
type preludeInfo struct {
totalLen uint32
headerLen uint32
}
// SelectResults is used for the streaming responses from the server.
type SelectResults struct {
pipeReader *io.PipeReader
resp *http.Response
stats *StatsMessage
progress *ProgressMessage
}
// ProgressMessage is a struct for progress xml message.
type ProgressMessage struct {
XMLName xml.Name `xml:"Progress" json:"-"`
StatsMessage
}
// StatsMessage is a struct for stat xml message.
type StatsMessage struct {
XMLName xml.Name `xml:"Stats" json:"-"`
BytesScanned int64
BytesProcessed int64
BytesReturned int64
}
// messageType represents the type of message.
type messageType string
const (
errorMsg messageType = "error"
commonMsg messageType = "event"
)
// eventType represents the type of event.
type eventType string
// list of event-types returned by Select API.
const (
endEvent eventType = "End"
recordsEvent eventType = "Records"
progressEvent eventType = "Progress"
statsEvent eventType = "Stats"
)
// contentType represents content type of event.
type contentType string
const (
xmlContent contentType = "text/xml"
)
// SelectObjectContent is a implementation of http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectSELECTContent.html AWS S3 API.
func (c *Client) SelectObjectContent(ctx context.Context, bucketName, objectName string, opts SelectObjectOptions) (*SelectResults, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return nil, err
}
selectReqBytes, err := xml.Marshal(opts)
if err != nil {
return nil, err
}
urlValues := make(url.Values)
urlValues.Set("select", "")
urlValues.Set("select-type", "2")
// Execute POST on bucket/object.
resp, err := c.executeMethod(ctx, http.MethodPost, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
customHeader: opts.Header(),
contentMD5Base64: sumMD5Base64(selectReqBytes),
contentSHA256Hex: sum256Hex(selectReqBytes),
contentBody: bytes.NewReader(selectReqBytes),
contentLength: int64(len(selectReqBytes)),
})
if err != nil {
return nil, err
}
return NewSelectResults(resp, bucketName)
}
// NewSelectResults creates a Select Result parser that parses the response
// and returns a Reader that will return parsed and assembled select output.
func NewSelectResults(resp *http.Response, bucketName string) (*SelectResults, error) {
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp, bucketName, "")
}
pipeReader, pipeWriter := io.Pipe()
streamer := &SelectResults{
resp: resp,
stats: &StatsMessage{},
progress: &ProgressMessage{},
pipeReader: pipeReader,
}
streamer.start(pipeWriter)
return streamer, nil
}
// Close - closes the underlying response body and the stream reader.
func (s *SelectResults) Close() error {
defer closeResponse(s.resp)
return s.pipeReader.Close()
}
// Read - is a reader compatible implementation for SelectObjectContent records.
func (s *SelectResults) Read(b []byte) (n int, err error) {
return s.pipeReader.Read(b)
}
// Stats - information about a request's stats when processing is complete.
func (s *SelectResults) Stats() *StatsMessage {
return s.stats
}
// Progress - information about the progress of a request.
func (s *SelectResults) Progress() *ProgressMessage {
return s.progress
}
// start is the main function that decodes the large byte array into
// several events that are sent through the eventstream.
func (s *SelectResults) start(pipeWriter *io.PipeWriter) {
go func() {
for {
var prelude preludeInfo
headers := make(http.Header)
var err error
// Create CRC code
crc := crc32.New(crc32.IEEETable)
crcReader := io.TeeReader(s.resp.Body, crc)
// Extract the prelude(12 bytes) into a struct to extract relevant information.
prelude, err = processPrelude(crcReader, crc)
if err != nil {
pipeWriter.CloseWithError(err)
closeResponse(s.resp)
return
}
// Extract the headers(variable bytes) into a struct to extract relevant information
if prelude.headerLen > 0 {
if err = extractHeader(io.LimitReader(crcReader, int64(prelude.headerLen)), headers); err != nil {
pipeWriter.CloseWithError(err)
closeResponse(s.resp)
return
}
}
// Get the actual payload length so that the appropriate amount of
// bytes can be read or parsed.
payloadLen := prelude.PayloadLen()
m := messageType(headers.Get("message-type"))
switch m {
case errorMsg:
pipeWriter.CloseWithError(errors.New(headers.Get("error-code") + ":\"" + headers.Get("error-message") + "\""))
closeResponse(s.resp)
return
case commonMsg:
// Get content-type of the payload.
c := contentType(headers.Get("content-type"))
// Get event type of the payload.
e := eventType(headers.Get("event-type"))
// Handle all supported events.
switch e {
case endEvent:
pipeWriter.Close()
closeResponse(s.resp)
return
case recordsEvent:
if _, err = io.Copy(pipeWriter, io.LimitReader(crcReader, payloadLen)); err != nil {
pipeWriter.CloseWithError(err)
closeResponse(s.resp)
return
}
case progressEvent:
switch c {
case xmlContent:
if err = xmlDecoder(io.LimitReader(crcReader, payloadLen), s.progress); err != nil {
pipeWriter.CloseWithError(err)
closeResponse(s.resp)
return
}
default:
pipeWriter.CloseWithError(fmt.Errorf("Unexpected content-type %s sent for event-type %s", c, progressEvent))
closeResponse(s.resp)
return
}
case statsEvent:
switch c {
case xmlContent:
if err = xmlDecoder(io.LimitReader(crcReader, payloadLen), s.stats); err != nil {
pipeWriter.CloseWithError(err)
closeResponse(s.resp)
return
}
default:
pipeWriter.CloseWithError(fmt.Errorf("Unexpected content-type %s sent for event-type %s", c, statsEvent))
closeResponse(s.resp)
return
}
}
}
// Ensures that the full message's CRC is correct and
// that the message is not corrupted
if err := checkCRC(s.resp.Body, crc.Sum32()); err != nil {
pipeWriter.CloseWithError(err)
closeResponse(s.resp)
return
}
}
}()
}
// PayloadLen is a function that calculates the length of the payload.
func (p preludeInfo) PayloadLen() int64 {
return int64(p.totalLen - p.headerLen - 16)
}
// processPrelude is the function that reads the 12 bytes of the prelude and
// ensures the CRC is correct while also extracting relevant information into
// the struct,
func processPrelude(prelude io.Reader, crc hash.Hash32) (preludeInfo, error) {
var err error
pInfo := preludeInfo{}
// reads total length of the message (first 4 bytes)
pInfo.totalLen, err = extractUint32(prelude)
if err != nil {
return pInfo, err
}
// reads total header length of the message (2nd 4 bytes)
pInfo.headerLen, err = extractUint32(prelude)
if err != nil {
return pInfo, err
}
// checks that the CRC is correct (3rd 4 bytes)
preCRC := crc.Sum32()
if err := checkCRC(prelude, preCRC); err != nil {
return pInfo, err
}
return pInfo, nil
}
// extracts the relevant information from the Headers.
func extractHeader(body io.Reader, myHeaders http.Header) error {
for {
// extracts the first part of the header,
headerTypeName, err := extractHeaderType(body)
if err != nil {
// Since end of file, we have read all of our headers
if err == io.EOF {
break
}
return err
}
// reads the 7 present in the header and ignores it.
extractUint8(body)
headerValueName, err := extractHeaderValue(body)
if err != nil {
return err
}
myHeaders.Set(headerTypeName, headerValueName)
}
return nil
}
// extractHeaderType extracts the first half of the header message, the header type.
func extractHeaderType(body io.Reader) (string, error) {
// extracts 2 bit integer
headerNameLen, err := extractUint8(body)
if err != nil {
return "", err
}
// extracts the string with the appropriate number of bytes
headerName, err := extractString(body, int(headerNameLen))
if err != nil {
return "", err
}
return strings.TrimPrefix(headerName, ":"), nil
}
// extractsHeaderValue extracts the second half of the header message, the
// header value
func extractHeaderValue(body io.Reader) (string, error) {
bodyLen, err := extractUint16(body)
if err != nil {
return "", err
}
bodyName, err := extractString(body, int(bodyLen))
if err != nil {
return "", err
}
return bodyName, nil
}
// extracts a string from byte array of a particular number of bytes.
func extractString(source io.Reader, lenBytes int) (string, error) {
myVal := make([]byte, lenBytes)
_, err := source.Read(myVal)
if err != nil {
return "", err
}
return string(myVal), nil
}
// extractUint32 extracts a 4 byte integer from the byte array.
func extractUint32(r io.Reader) (uint32, error) {
buf := make([]byte, 4)
_, err := readFull(r, buf)
if err != nil {
return 0, err
}
return binary.BigEndian.Uint32(buf), nil
}
// extractUint16 extracts a 2 byte integer from the byte array.
func extractUint16(r io.Reader) (uint16, error) {
buf := make([]byte, 2)
_, err := readFull(r, buf)
if err != nil {
return 0, err
}
return binary.BigEndian.Uint16(buf), nil
}
// extractUint8 extracts a 1 byte integer from the byte array.
func extractUint8(r io.Reader) (uint8, error) {
buf := make([]byte, 1)
_, err := readFull(r, buf)
if err != nil {
return 0, err
}
return buf[0], nil
}
// checkCRC ensures that the CRC matches with the one from the reader.
func checkCRC(r io.Reader, expect uint32) error {
msgCRC, err := extractUint32(r)
if err != nil {
return err
}
if msgCRC != expect {
return fmt.Errorf("Checksum Mismatch, MessageCRC of 0x%X does not equal expected CRC of 0x%X", msgCRC, expect)
}
return nil
}
+124
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@@ -0,0 +1,124 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"net/http"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// BucketExists verifies if bucket exists and you have permission to access it. Allows for a Context to
// control cancellations and timeouts.
func (c *Client) BucketExists(ctx context.Context, bucketName string) (bool, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return false, err
}
// Execute HEAD on bucketName.
resp, err := c.executeMethod(ctx, http.MethodHead, requestMetadata{
bucketName: bucketName,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
if ToErrorResponse(err).Code == NoSuchBucket {
return false, nil
}
return false, err
}
if resp != nil {
resperr := httpRespToErrorResponse(resp, bucketName, "")
if ToErrorResponse(resperr).Code == NoSuchBucket {
return false, nil
}
if resp.StatusCode != http.StatusOK {
return false, httpRespToErrorResponse(resp, bucketName, "")
}
}
return true, nil
}
// StatObject verifies if object exists, you have permission to access it
// and returns information about the object.
func (c *Client) StatObject(ctx context.Context, bucketName, objectName string, opts StatObjectOptions) (ObjectInfo, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return ObjectInfo{}, ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: InvalidBucketName,
Message: err.Error(),
}
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return ObjectInfo{}, ErrorResponse{
StatusCode: http.StatusBadRequest,
Code: XMinioInvalidObjectName,
Message: err.Error(),
}
}
headers := opts.Header()
if opts.Internal.ReplicationDeleteMarker {
headers.Set(minIOBucketReplicationDeleteMarker, "true")
}
if opts.Internal.IsReplicationReadyForDeleteMarker {
headers.Set(isMinioTgtReplicationReady, "true")
}
// Execute HEAD on objectName.
resp, err := c.executeMethod(ctx, http.MethodHead, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: opts.toQueryValues(),
contentSHA256Hex: emptySHA256Hex,
customHeader: headers,
})
defer closeResponse(resp)
if err != nil {
return ObjectInfo{}, err
}
if resp != nil {
deleteMarker := resp.Header.Get(amzDeleteMarker) == "true"
replicationReady := resp.Header.Get(minioTgtReplicationReady) == "true"
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusPartialContent {
if resp.StatusCode == http.StatusMethodNotAllowed && opts.VersionID != "" && deleteMarker {
errResp := ErrorResponse{
StatusCode: resp.StatusCode,
Code: MethodNotAllowed,
Message: s3ErrorResponseMap[MethodNotAllowed],
BucketName: bucketName,
Key: objectName,
}
return ObjectInfo{
VersionID: resp.Header.Get(amzVersionID),
IsDeleteMarker: deleteMarker,
}, errResp
}
return ObjectInfo{
VersionID: resp.Header.Get(amzVersionID),
IsDeleteMarker: deleteMarker,
ReplicationReady: replicationReady, // whether delete marker can be replicated
}, httpRespToErrorResponse(resp, bucketName, objectName)
}
}
return ToObjectInfo(bucketName, objectName, resp.Header)
}
@@ -0,0 +1,130 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2025-2026 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"bytes"
"context"
"encoding/xml"
"net/http"
"net/url"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// updateObjectEncryptionSSEKMS represents the SSE-KMS element in the request body.
type updateObjectEncryptionSSEKMS struct {
BucketKeyEnabled bool `xml:"BucketKeyEnabled,omitempty"`
KMSKeyArn string `xml:"KMSKeyArn"`
}
// updateObjectEncryptionRequest represents the XML request body for UpdateObjectEncryption.
type updateObjectEncryptionRequest struct {
XMLName xml.Name `xml:"ObjectEncryption"`
XMLNS string `xml:"xmlns,attr"`
SSEKMS *updateObjectEncryptionSSEKMS `xml:"SSE-KMS"`
}
// UpdateObjectEncryptionOptions holds options for the UpdateObjectEncryption call.
type UpdateObjectEncryptionOptions struct {
// KMSKeyArn is the KMS key name or ARN to encrypt the object with.
KMSKeyArn string
// BucketKeyEnabled enables S3 Bucket Key for KMS encryption.
BucketKeyEnabled bool
// VersionID targets a specific object version.
VersionID string
}
// UpdateObjectEncryptionResult holds the result of an UpdateObjectEncryption call.
type UpdateObjectEncryptionResult struct {
// VersionID is the version ID of the object that was updated, if versioning is enabled.
VersionID string
}
// UpdateObjectEncryption changes the encryption configuration of an existing object in-place.
// The object must already be encrypted with SSE-S3 or SSE-KMS. SSE-C objects are not supported.
// This operation rotates the data encryption key envelope without re-reading/re-writing object data.
//
// Parameters:
// - ctx: Context for request cancellation and timeout
// - bucketName: Name of the bucket
// - objectName: Name of the object
// - opts: Options including KMSKeyArn (required), optional BucketKeyEnabled, and optional VersionID
//
// Returns the version ID of the updated object (if versioning is enabled) and an error if the operation fails.
func (c *Client) UpdateObjectEncryption(ctx context.Context, bucketName, objectName string, opts UpdateObjectEncryptionOptions) (UpdateObjectEncryptionResult, error) {
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return UpdateObjectEncryptionResult{}, err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return UpdateObjectEncryptionResult{}, err
}
if opts.KMSKeyArn == "" {
return UpdateObjectEncryptionResult{}, errInvalidArgument("KMSKeyArn is required for UpdateObjectEncryption.")
}
// Get resources properly escaped and lined up before
// using them in http request.
urlValues := make(url.Values)
urlValues.Set("encryption", "")
if opts.VersionID != "" {
urlValues.Set("versionId", opts.VersionID)
}
reqBody := updateObjectEncryptionRequest{
XMLNS: "http://s3.amazonaws.com/doc/2006-03-01/",
SSEKMS: &updateObjectEncryptionSSEKMS{
BucketKeyEnabled: opts.BucketKeyEnabled,
KMSKeyArn: opts.KMSKeyArn,
},
}
bodyData, err := xml.Marshal(reqBody)
if err != nil {
return UpdateObjectEncryptionResult{}, err
}
reqMetadata := requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentBody: bytes.NewReader(bodyData),
contentLength: int64(len(bodyData)),
contentMD5Base64: sumMD5Base64(bodyData),
contentSHA256Hex: sum256Hex(bodyData),
}
// Execute PUT Object Encryption.
resp, err := c.executeMethod(ctx, http.MethodPut, reqMetadata)
defer closeResponse(resp)
if err != nil {
return UpdateObjectEncryptionResult{}, err
}
if resp.StatusCode != http.StatusOK {
return UpdateObjectEncryptionResult{}, httpRespToErrorResponse(resp, bucketName, objectName)
}
return UpdateObjectEncryptionResult{
VersionID: resp.Header.Get(amzVersionID),
}, nil
}
+1151
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+219
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@@ -0,0 +1,219 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"net"
"net/http"
"net/url"
"path"
"github.com/minio/minio-go/v7/pkg/credentials"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/signer"
)
// GetBucketLocation - get location for the bucket name from location cache, if not
// fetch freshly by making a new request.
func (c *Client) GetBucketLocation(ctx context.Context, bucketName string) (string, error) {
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return "", err
}
return c.getBucketLocation(ctx, bucketName)
}
// getBucketLocation - Get location for the bucketName from location map cache, if not
// fetch freshly by making a new request.
func (c *Client) getBucketLocation(ctx context.Context, bucketName string) (string, error) {
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return "", err
}
// Region set then no need to fetch bucket location.
if c.region != "" {
return c.region, nil
}
if location, ok := c.bucketLocCache.Get(bucketName); ok {
return location, nil
}
// Initialize a new request.
req, err := c.getBucketLocationRequest(ctx, bucketName)
if err != nil {
return "", err
}
// Initiate the request.
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return "", err
}
location, err := processBucketLocationResponse(resp, bucketName)
if err != nil {
return "", err
}
c.bucketLocCache.Set(bucketName, location)
return location, nil
}
// processes the getBucketLocation http response from the server.
func processBucketLocationResponse(resp *http.Response, bucketName string) (bucketLocation string, err error) {
if resp != nil {
if resp.StatusCode != http.StatusOK {
err = httpRespToErrorResponse(resp, bucketName, "")
errResp := ToErrorResponse(err)
// For access denied error, it could be an anonymous
// request. Move forward and let the top level callers
// succeed if possible based on their policy.
switch errResp.Code {
case NotImplemented:
switch errResp.Server {
case "AmazonSnowball":
return "snowball", nil
case "cloudflare":
return "us-east-1", nil
}
case AuthorizationHeaderMalformed:
fallthrough
case InvalidRegion:
fallthrough
case AccessDenied:
if errResp.Region == "" {
return "us-east-1", nil
}
return errResp.Region, nil
}
return "", err
}
}
// Extract location.
var locationConstraint string
err = xmlDecoder(resp.Body, &locationConstraint)
if err != nil {
return "", err
}
location := locationConstraint
// Location is empty will be 'us-east-1'.
if location == "" {
location = "us-east-1"
}
// Location can be 'EU' convert it to meaningful 'eu-west-1'.
if location == "EU" {
location = "eu-west-1"
}
// Save the location into cache.
// Return.
return location, nil
}
// getBucketLocationRequest - Wrapper creates a new getBucketLocation request.
func (c *Client) getBucketLocationRequest(ctx context.Context, bucketName string) (*http.Request, error) {
// Set location query.
urlValues := make(url.Values)
urlValues.Set("location", "")
// Set get bucket location always as path style.
targetURL := *c.endpointURL
// as it works in makeTargetURL method from api.go file
if h, p, err := net.SplitHostPort(targetURL.Host); err == nil {
if targetURL.Scheme == "http" && p == "80" || targetURL.Scheme == "https" && p == "443" {
targetURL.Host = h
if ip := net.ParseIP(h); ip != nil && ip.To4() == nil {
targetURL.Host = "[" + h + "]"
}
}
}
isVirtualStyle := c.isVirtualHostStyleRequest(targetURL, bucketName)
var urlStr string
if isVirtualStyle {
urlStr = c.endpointURL.Scheme + "://" + bucketName + "." + targetURL.Host + "/?location"
} else {
targetURL.Path = path.Join(bucketName, "") + "/"
targetURL.RawQuery = urlValues.Encode()
urlStr = targetURL.String()
}
// Get a new HTTP request for the method.
req, err := http.NewRequestWithContext(ctx, http.MethodGet, urlStr, nil)
if err != nil {
return nil, err
}
// Set UserAgent for the request.
c.setUserAgent(req)
// Get credentials from the configured credentials provider.
value, err := c.credsProvider.GetWithContext(c.CredContext())
if err != nil {
return nil, err
}
var (
signerType = value.SignerType
accessKeyID = value.AccessKeyID
secretAccessKey = value.SecretAccessKey
sessionToken = value.SessionToken
)
// Custom signer set then override the behavior.
if c.overrideSignerType != credentials.SignatureDefault {
signerType = c.overrideSignerType
}
// If signerType returned by credentials helper is anonymous,
// then do not sign regardless of signerType override.
if value.SignerType == credentials.SignatureAnonymous {
signerType = credentials.SignatureAnonymous
}
if signerType.IsAnonymous() {
return req, nil
}
if signerType.IsV2() {
req = signer.SignV2(*req, accessKeyID, secretAccessKey, isVirtualStyle)
return req, nil
}
// Set sha256 sum for signature calculation only with signature version '4'.
contentSha256 := emptySHA256Hex
if c.secure {
contentSha256 = unsignedPayload
}
req.Header.Set("X-Amz-Content-Sha256", contentSha256)
if s3utils.IsAmazonOutpostsEndpoint(*c.endpointURL) {
region := getDefaultLocation(*c.endpointURL, c.region)
req = signer.SignV4Outposts(*req, accessKeyID, secretAccessKey, sessionToken, region)
} else {
req = signer.SignV4(*req, accessKeyID, secretAccessKey, sessionToken, "us-east-1")
}
return req, nil
}
+537
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@@ -0,0 +1,537 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2023 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"crypto/md5"
"crypto/sha1"
"crypto/sha256"
"crypto/sha512"
"encoding/base64"
"encoding/binary"
"errors"
"hash"
"io"
"math/bits"
"net/http"
"sort"
"strings"
"github.com/cespare/xxhash/v2"
"github.com/klauspost/crc32"
"github.com/minio/crc64nvme"
"github.com/zeebo/xxh3"
)
// ChecksumMode contains information about the checksum mode on the object
type ChecksumMode uint32
const (
// ChecksumFullObjectMode Full object checksum `csumCombine(csum1, csum2...)...), csumN...)`
ChecksumFullObjectMode ChecksumMode = 1 << iota
// ChecksumCompositeMode Composite checksum `csum([csum1 + csum2 ... + csumN])`
ChecksumCompositeMode
// Keep after all valid checksums
checksumLastMode
// checksumModeMask is a mask for valid checksum mode types.
checksumModeMask = checksumLastMode - 1
// ChecksumUnknownMode indicates no or unknown checksum mode.
ChecksumUnknownMode ChecksumMode = 0
)
// Is returns if c is all of t.
func (c ChecksumMode) Is(t ChecksumMode) bool {
return c&t == t
}
// Key returns the header key.
func (c ChecksumMode) Key() string {
return amzChecksumMode
}
func (c ChecksumMode) String() string {
switch c & checksumModeMask {
case ChecksumFullObjectMode:
return amzChecksumModeFullObject
case ChecksumCompositeMode:
return amzChecksumModeComposite
}
return ""
}
// ChecksumType contains information about the checksum type.
type ChecksumType uint32
const (
// ChecksumSHA256 indicates a SHA256 checksum.
ChecksumSHA256 ChecksumType = 1 << iota
// ChecksumSHA1 indicates a SHA-1 checksum.
ChecksumSHA1
// ChecksumCRC32 indicates a CRC32 checksum with IEEE table.
ChecksumCRC32
// ChecksumCRC32C indicates a CRC32 checksum with Castagnoli table.
ChecksumCRC32C
// ChecksumCRC64NVME indicates CRC64 with 0xad93d23594c93659 polynomial.
ChecksumCRC64NVME
// ChecksumMD5 indicates an MD5 checksum.
ChecksumMD5
// ChecksumSHA512 indicates a SHA-512 checksum.
ChecksumSHA512
// ChecksumXXHash64 indicates an XXHash64 checksum.
ChecksumXXHash64
// ChecksumXXHash3 indicates an XXH3-64 checksum.
ChecksumXXHash3
// ChecksumXXHash128 indicates an XXH3-128 checksum.
ChecksumXXHash128
// Keep after all valid checksums
checksumLast
// ChecksumFullObject is a modifier that can be used on CRC32 and CRC32C
// to indicate full object checksums.
ChecksumFullObject
// checksumMask is a mask for valid checksum types.
checksumMask = checksumLast - 1
// ChecksumNone indicates no checksum.
ChecksumNone ChecksumType = 0
// ChecksumFullObjectCRC32 indicates full object CRC32
ChecksumFullObjectCRC32 = ChecksumCRC32 | ChecksumFullObject
// ChecksumFullObjectCRC32C indicates full object CRC32C
ChecksumFullObjectCRC32C = ChecksumCRC32C | ChecksumFullObject
amzChecksumAlgo = "x-amz-checksum-algorithm"
amzChecksumCRC32 = "x-amz-checksum-crc32"
amzChecksumCRC32C = "x-amz-checksum-crc32c"
amzChecksumSHA1 = "x-amz-checksum-sha1"
amzChecksumSHA256 = "x-amz-checksum-sha256"
amzChecksumCRC64NVME = "x-amz-checksum-crc64nvme"
amzChecksumMD5 = "x-amz-checksum-md5"
amzChecksumSHA512 = "x-amz-checksum-sha512"
amzChecksumXXHash64 = "x-amz-checksum-xxhash64"
amzChecksumXXHash3 = "x-amz-checksum-xxhash3"
amzChecksumXXHash128 = "x-amz-checksum-xxhash128"
amzChecksumMode = "x-amz-checksum-type"
amzChecksumModeComposite = "COMPOSITE"
amzChecksumModeFullObject = "FULL_OBJECT"
)
// Base returns the base type, without modifiers.
func (c ChecksumType) Base() ChecksumType {
return c & checksumMask
}
// Is returns if c is all of t.
func (c ChecksumType) Is(t ChecksumType) bool {
return c&t == t
}
// Key returns the header key.
// returns empty string if invalid or none.
func (c ChecksumType) Key() string {
switch c & checksumMask {
case ChecksumCRC32:
return amzChecksumCRC32
case ChecksumCRC32C:
return amzChecksumCRC32C
case ChecksumSHA1:
return amzChecksumSHA1
case ChecksumSHA256:
return amzChecksumSHA256
case ChecksumCRC64NVME:
return amzChecksumCRC64NVME
case ChecksumMD5:
return amzChecksumMD5
case ChecksumSHA512:
return amzChecksumSHA512
case ChecksumXXHash64:
return amzChecksumXXHash64
case ChecksumXXHash3:
return amzChecksumXXHash3
case ChecksumXXHash128:
return amzChecksumXXHash128
}
return ""
}
// CanComposite will return if the checksum type can be used for composite multipart upload on AWS.
func (c ChecksumType) CanComposite() bool {
switch c & checksumMask {
case ChecksumSHA256, ChecksumSHA1, ChecksumCRC32, ChecksumCRC32C,
ChecksumMD5, ChecksumSHA512, ChecksumXXHash64, ChecksumXXHash3, ChecksumXXHash128:
return true
}
return false
}
// CanMergeCRC will return if the checksum type can be used for multipart upload on AWS.
func (c ChecksumType) CanMergeCRC() bool {
switch c & checksumMask {
case ChecksumCRC32, ChecksumCRC32C, ChecksumCRC64NVME:
return true
}
return false
}
// FullObjectRequested will return if the checksum type indicates full object checksum was requested.
func (c ChecksumType) FullObjectRequested() bool {
switch c & (ChecksumFullObject | checksumMask) {
case ChecksumFullObjectCRC32C, ChecksumFullObjectCRC32, ChecksumCRC64NVME:
return true
}
return false
}
// KeyCapitalized returns the capitalized key as used in HTTP headers.
func (c ChecksumType) KeyCapitalized() string {
return http.CanonicalHeaderKey(c.Key())
}
// RawByteLen returns the size of the un-encoded checksum.
func (c ChecksumType) RawByteLen() int {
switch c & checksumMask {
case ChecksumCRC32, ChecksumCRC32C:
return 4
case ChecksumSHA1:
return sha1.Size
case ChecksumSHA256:
return sha256.Size
case ChecksumCRC64NVME:
return crc64nvme.Size
case ChecksumXXHash64, ChecksumXXHash3:
return 8
case ChecksumMD5:
return md5.Size
case ChecksumSHA512:
return sha512.Size
case ChecksumXXHash128:
return 16
}
return 0
}
const crc64NVMEPolynomial = 0xad93d23594c93659
// Hasher returns a hasher corresponding to the checksum type.
// Returns nil if no checksum.
func (c ChecksumType) Hasher() hash.Hash {
switch c & checksumMask {
case ChecksumCRC32:
return crc32.NewIEEE()
case ChecksumCRC32C:
return crc32.New(crc32.MakeTable(crc32.Castagnoli))
case ChecksumSHA1:
return sha1.New()
case ChecksumSHA256:
return sha256.New()
case ChecksumCRC64NVME:
return crc64nvme.New()
case ChecksumMD5:
return md5.New()
case ChecksumSHA512:
return sha512.New()
case ChecksumXXHash64:
return xxhash.New()
case ChecksumXXHash3:
return xxh3.New()
case ChecksumXXHash128:
return xxh3.New128()
}
return nil
}
// IsSet returns whether the type is valid and known.
func (c ChecksumType) IsSet() bool {
return bits.OnesCount32(uint32(c&checksumMask)) == 1
}
// SetDefault will set the checksum if not already set.
func (c *ChecksumType) SetDefault(t ChecksumType) {
if !c.IsSet() {
*c = t
}
}
// EncodeToString the encoded hash value of the content provided in b.
func (c ChecksumType) EncodeToString(b []byte) string {
if !c.IsSet() {
return ""
}
h := c.Hasher()
h.Write(b)
return base64.StdEncoding.EncodeToString(h.Sum(nil))
}
// String returns the type as a string.
// Empty string for unset and "<invalid>" if not valid.
func (c ChecksumType) String() string {
switch c & checksumMask {
case ChecksumCRC32:
return "CRC32"
case ChecksumCRC32C:
return "CRC32C"
case ChecksumSHA1:
return "SHA1"
case ChecksumSHA256:
return "SHA256"
case ChecksumNone:
return ""
case ChecksumCRC64NVME:
return "CRC64NVME"
case ChecksumMD5:
return "MD5"
case ChecksumSHA512:
return "SHA512"
case ChecksumXXHash64:
return "XXHASH64"
case ChecksumXXHash3:
return "XXHASH3"
case ChecksumXXHash128:
return "XXHASH128"
}
return "<invalid>"
}
// ChecksumReader reads all of r and returns a checksum of type c.
// Returns any error that may have occurred while reading.
func (c ChecksumType) ChecksumReader(r io.Reader) (Checksum, error) {
h := c.Hasher()
if h == nil {
return Checksum{}, nil
}
_, err := io.Copy(h, r)
if err != nil {
return Checksum{}, err
}
return NewChecksum(c, h.Sum(nil)), nil
}
// ChecksumBytes returns a checksum of the content b with type c.
func (c ChecksumType) ChecksumBytes(b []byte) Checksum {
h := c.Hasher()
if h == nil {
return Checksum{}
}
n, err := h.Write(b)
if err != nil || n != len(b) {
// Shouldn't happen with these checksummers.
return Checksum{}
}
return NewChecksum(c, h.Sum(nil))
}
// Checksum is a type and encoded value.
type Checksum struct {
Type ChecksumType
r []byte
}
// NewChecksum sets the checksum to the value of b,
// which is the raw hash output.
// If the length of c does not match t.RawByteLen,
// a checksum with ChecksumNone is returned.
func NewChecksum(t ChecksumType, b []byte) Checksum {
if t.IsSet() && len(b) == t.RawByteLen() {
return Checksum{Type: t, r: b}
}
return Checksum{}
}
// NewChecksumString sets the checksum to the value of s,
// which is the base 64 encoded raw hash output.
// If the length of c does not match t.RawByteLen, it is not added.
func NewChecksumString(t ChecksumType, s string) Checksum {
b, _ := base64.StdEncoding.DecodeString(s)
if t.IsSet() && len(b) == t.RawByteLen() {
return Checksum{Type: t, r: b}
}
return Checksum{}
}
// IsSet returns whether the checksum is valid and known.
func (c Checksum) IsSet() bool {
return c.Type.IsSet() && len(c.r) == c.Type.RawByteLen()
}
// Encoded returns the encoded value.
// Returns the empty string if not set or valid.
func (c Checksum) Encoded() string {
if !c.IsSet() {
return ""
}
return base64.StdEncoding.EncodeToString(c.r)
}
// Raw returns the raw checksum value if set.
func (c Checksum) Raw() []byte {
if !c.IsSet() {
return nil
}
return c.r
}
// CompositeChecksum returns the composite checksum of all provided parts.
func (c ChecksumType) CompositeChecksum(p []ObjectPart) (*Checksum, error) {
if !c.CanComposite() {
return nil, errors.New("cannot do composite checksum")
}
sort.Slice(p, func(i, j int) bool {
return p[i].PartNumber < p[j].PartNumber
})
c = c.Base()
crcBytes := make([]byte, 0, len(p)*c.RawByteLen())
for _, part := range p {
pCrc, err := part.ChecksumRaw(c)
if err != nil {
return nil, err
}
crcBytes = append(crcBytes, pCrc...)
}
h := c.Hasher()
h.Write(crcBytes)
return &Checksum{Type: c, r: h.Sum(nil)}, nil
}
// FullObjectChecksum will return the full object checksum from provided parts.
func (c ChecksumType) FullObjectChecksum(p []ObjectPart) (*Checksum, error) {
if !c.CanMergeCRC() {
return nil, errors.New("cannot merge this checksum type")
}
c = c.Base()
sort.Slice(p, func(i, j int) bool {
return p[i].PartNumber < p[j].PartNumber
})
switch len(p) {
case 0:
return nil, errors.New("no parts given")
case 1:
check, err := p[0].ChecksumRaw(c)
if err != nil {
return nil, err
}
return &Checksum{
Type: c,
r: check,
}, nil
}
var merged uint32
var merged64 uint64
first, err := p[0].ChecksumRaw(c)
if err != nil {
return nil, err
}
sz := p[0].Size
switch c {
case ChecksumCRC32, ChecksumCRC32C:
merged = binary.BigEndian.Uint32(first)
case ChecksumCRC64NVME:
merged64 = binary.BigEndian.Uint64(first)
}
poly32 := uint32(crc32.IEEE)
if c.Is(ChecksumCRC32C) {
poly32 = crc32.Castagnoli
}
for _, part := range p[1:] {
if part.Size == 0 {
continue
}
sz += part.Size
pCrc, err := part.ChecksumRaw(c)
if err != nil {
return nil, err
}
switch c {
case ChecksumCRC32, ChecksumCRC32C:
merged = crc32Combine(poly32, merged, binary.BigEndian.Uint32(pCrc), part.Size)
case ChecksumCRC64NVME:
merged64 = crc64Combine(bits.Reverse64(crc64NVMEPolynomial), merged64, binary.BigEndian.Uint64(pCrc), part.Size)
}
}
var tmp [8]byte
switch c {
case ChecksumCRC32, ChecksumCRC32C:
binary.BigEndian.PutUint32(tmp[:], merged)
return &Checksum{
Type: c,
r: tmp[:4],
}, nil
case ChecksumCRC64NVME:
binary.BigEndian.PutUint64(tmp[:], merged64)
return &Checksum{
Type: c,
r: tmp[:8],
}, nil
default:
return nil, errors.New("unknown checksum type")
}
}
func addAutoChecksumHeaders(opts *PutObjectOptions) {
if opts.UserMetadata == nil {
opts.UserMetadata = make(map[string]string, 1)
}
addChecksum := true
for k := range opts.UserMetadata {
if strings.HasPrefix(strings.ToLower(k), "x-amz-checksum-") {
addChecksum = false
}
}
if addChecksum && opts.AutoChecksum.IsSet() {
opts.UserMetadata[amzChecksumAlgo] = opts.AutoChecksum.String()
if opts.AutoChecksum.FullObjectRequested() {
opts.UserMetadata[amzChecksumMode] = ChecksumFullObjectMode.String()
}
}
}
func applyAutoChecksum(opts *PutObjectOptions, allParts []ObjectPart) {
if !opts.AutoChecksum.IsSet() {
return
}
if opts.AutoChecksum.CanComposite() && !opts.AutoChecksum.Is(ChecksumFullObject) {
// Add composite hash of hashes.
crc, err := opts.AutoChecksum.CompositeChecksum(allParts)
if err == nil {
opts.UserMetadata = map[string]string{
opts.AutoChecksum.Key(): crc.Encoded(),
amzChecksumMode: ChecksumCompositeMode.String(),
}
}
} else if opts.AutoChecksum.CanMergeCRC() {
crc, err := opts.AutoChecksum.FullObjectChecksum(allParts)
if err == nil {
opts.UserMetadata = map[string]string{
opts.AutoChecksum.Key(): crc.Encoded(),
amzChecksumMode: ChecksumFullObjectMode.String(),
}
}
}
}
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Contributor Covenant Code of Conduct
====================================
Our Pledge
----------
In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
Our Standards
-------------
Examples of behavior that contributes to creating a positive environment include:
- Using welcoming and inclusive language
- Being respectful of differing viewpoints and experiences
- Gracefully accepting constructive criticism
- Focusing on what is best for the community
- Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
- The use of sexualized language or imagery and unwelcome sexual attention or advances
- Trolling, insulting/derogatory comments, and personal or political attacks
- Public or private harassment
- Publishing others' private information, such as a physical or electronic address, without explicit permission
- Other conduct which could reasonably be considered inappropriate in a professional setting
Our Responsibilities
--------------------
Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior, in compliance with the licensing terms applying to the Project developments.
Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful. However, these actions shall respect the licensing terms of the Project Developments that will always supersede such Code of Conduct.
Scope
-----
This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
Enforcement
-----------
Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at dev@min.io. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
Attribution
-----------
This Code of Conduct is adapted from the [Contributor Covenant](http://contributor-covenant.org), version 1.4, available at [http://contributor-covenant.org/version/1/4](http://contributor-covenant.org/version/1/4/)
This version includes a clarification to ensure that the code of conduct is in compliance with the free software licensing terms of the project.
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
// Multipart upload defaults.
// absMinPartSize - absolute minimum part size (5 MiB) below which
// a part in a multipart upload may not be uploaded.
const absMinPartSize = 1024 * 1024 * 5
// minPartSize - minimum part size 16MiB per object after which
// putObject behaves internally as multipart.
const minPartSize = 1024 * 1024 * 16
// maxPartsCount - maximum number of parts for a single multipart session.
const maxPartsCount = 10000
// maxPartSize - maximum part size 5GiB for a single multipart upload
// operation.
const maxPartSize = 1024 * 1024 * 1024 * 5
// maxSinglePutObjectSize - maximum size 5GiB of object per PUT
// operation.
const maxSinglePutObjectSize = 1024 * 1024 * 1024 * 5
// maxMultipartPutObjectSize - maximum size 5TiB of object for
// Multipart operation.
const maxMultipartPutObjectSize = 1024 * 1024 * 1024 * 1024 * 5
// maxObjectSize - maximum size of an object calculated from
// maxPartSize * maxPartsCount = 5GiB * 10000 = ~48.83TiB
const maxObjectSize = maxPartSize * maxPartsCount
// unsignedPayload - value to be set to X-Amz-Content-Sha256 header when
// we don't want to sign the request payload
const unsignedPayload = "UNSIGNED-PAYLOAD"
// unsignedPayloadTrailer value to be set to X-Amz-Content-Sha256 header when
// we don't want to sign the request payload, but have a trailer.
const unsignedPayloadTrailer = "STREAMING-UNSIGNED-PAYLOAD-TRAILER"
// Total number of parallel workers used for multipart operation.
const totalWorkers = 4
// Signature related constants.
const (
signV4Algorithm = "AWS4-HMAC-SHA256"
iso8601DateFormat = "20060102T150405Z"
)
const (
// GetObjectAttributesTags are tags used to defined
// return values for the GetObjectAttributes API
GetObjectAttributesTags = "ETag,Checksum,StorageClass,ObjectSize,ObjectParts"
// GetObjectAttributesMaxParts defined the default maximum
// number of parts returned by GetObjectAttributes
GetObjectAttributesMaxParts = 1000
)
const (
// Response Headers
// ETag is a common response header
ETag = "ETag"
// Storage class header.
amzStorageClass = "X-Amz-Storage-Class"
// Website redirect location header
amzWebsiteRedirectLocation = "X-Amz-Website-Redirect-Location"
// GetObjectAttributes headers
amzPartNumberMarker = "X-Amz-Part-Number-Marker"
amzExpectedBucketOnwer = "X-Amz-Expected-Bucket-Owner"
amzMaxParts = "X-Amz-Max-Parts"
amzObjectAttributes = "X-Amz-Object-Attributes"
// Object Tagging headers
amzTaggingHeader = "X-Amz-Tagging"
amzTaggingHeaderDirective = "X-Amz-Tagging-Directive"
amzVersionID = "X-Amz-Version-Id"
amzTaggingCount = "X-Amz-Tagging-Count"
amzExpiration = "X-Amz-Expiration"
amzRestore = "X-Amz-Restore"
amzReplicationStatus = "X-Amz-Replication-Status"
amzDeleteMarker = "X-Amz-Delete-Marker"
// Object legal hold header
amzLegalHoldHeader = "X-Amz-Object-Lock-Legal-Hold"
// Object retention header
amzLockMode = "X-Amz-Object-Lock-Mode"
amzLockRetainUntil = "X-Amz-Object-Lock-Retain-Until-Date"
amzBypassGovernance = "X-Amz-Bypass-Governance-Retention"
// Replication status
amzBucketReplicationStatus = "X-Amz-Replication-Status"
// Minio specific Replication/lifecycle transition extension
minIOBucketSourceMTime = "X-Minio-Source-Mtime"
minIOBucketSourceETag = "X-Minio-Source-Etag"
minIOBucketReplicationDeleteMarker = "X-Minio-Source-DeleteMarker"
minIOBucketReplicationProxyRequest = "X-Minio-Source-Proxy-Request"
minIOBucketReplicationRequest = "X-Minio-Source-Replication-Request"
minIOBucketReplicationCheck = "X-Minio-Source-Replication-Check"
// Header indicates last tag update time on source
minIOBucketReplicationTaggingTimestamp = "X-Minio-Source-Replication-Tagging-Timestamp"
// Header indicates last retention update time on source
minIOBucketReplicationObjectRetentionTimestamp = "X-Minio-Source-Replication-Retention-Timestamp"
// Header indicates last legalhold update time on source
minIOBucketReplicationObjectLegalHoldTimestamp = "X-Minio-Source-Replication-LegalHold-Timestamp"
minIOForceDelete = "x-minio-force-delete"
// Header indicates delete marker replication request can be sent by source now.
minioTgtReplicationReady = "X-Minio-Replication-Ready"
// Header asks if delete marker replication request can be sent by source now.
isMinioTgtReplicationReady = "X-Minio-Check-Replication-Ready"
)
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"io"
"net/http"
"github.com/minio/minio-go/v7/pkg/encrypt"
)
// Core - Inherits Client and adds new methods to expose the low level S3 APIs.
type Core struct {
*Client
}
// NewCore - Returns new initialized a Core client, this CoreClient should be
// only used under special conditions such as need to access lower primitives
// and being able to use them to write your own wrappers.
func NewCore(endpoint string, opts *Options) (*Core, error) {
var s3Client Core
client, err := New(endpoint, opts)
if err != nil {
return nil, err
}
s3Client.Client = client
return &s3Client, nil
}
// ListObjects - List all the objects at a prefix, optionally with marker and delimiter
// you can further filter the results.
func (c Core) ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (result ListBucketResult, err error) {
return c.listObjectsQuery(context.Background(), bucket, prefix, marker, delimiter, maxKeys, nil)
}
// ListObjectsV2 - Lists all the objects at a prefix, similar to ListObjects() but uses
// continuationToken instead of marker to support iteration over the results.
func (c Core) ListObjectsV2(bucketName, objectPrefix, startAfter, continuationToken, delimiter string, maxkeys int) (ListBucketV2Result, error) {
return c.listObjectsV2Query(context.Background(), bucketName, objectPrefix, continuationToken, true, false, delimiter, startAfter, maxkeys, nil)
}
// CopyObject - copies an object from source object to destination object on server side.
func (c Core) CopyObject(ctx context.Context, sourceBucket, sourceObject, destBucket, destObject string, metadata map[string]string, srcOpts CopySrcOptions, dstOpts PutObjectOptions) (ObjectInfo, error) {
return c.copyObjectDo(ctx, sourceBucket, sourceObject, destBucket, destObject, metadata, srcOpts, dstOpts)
}
// CopyObjectPart - creates a part in a multipart upload by copying (a
// part of) an existing object.
func (c Core) CopyObjectPart(ctx context.Context, srcBucket, srcObject, destBucket, destObject, uploadID string,
partID int, startOffset, length int64, metadata map[string]string,
) (p CompletePart, err error) {
return c.copyObjectPartDo(ctx, srcBucket, srcObject, destBucket, destObject, uploadID,
partID, startOffset, length, metadata)
}
// PutObject - Upload object. Uploads using single PUT call.
func (c Core) PutObject(ctx context.Context, bucket, object string, data io.Reader, size int64, md5Base64, sha256Hex string, opts PutObjectOptions) (UploadInfo, error) {
hookReader := newHook(data, opts.Progress)
return c.putObjectDo(ctx, bucket, object, hookReader, md5Base64, sha256Hex, size, opts)
}
// NewMultipartUpload - Initiates new multipart upload and returns the new uploadID.
func (c Core) NewMultipartUpload(ctx context.Context, bucket, object string, opts PutObjectOptions) (uploadID string, err error) {
result, err := c.initiateMultipartUpload(ctx, bucket, object, opts)
return result.UploadID, err
}
// ListMultipartUploads - List incomplete uploads.
func (c Core) ListMultipartUploads(ctx context.Context, bucket, prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (result ListMultipartUploadsResult, err error) {
return c.listMultipartUploadsQuery(ctx, bucket, keyMarker, uploadIDMarker, prefix, delimiter, maxUploads)
}
// PutObjectPartOptions contains options for PutObjectPart API
type PutObjectPartOptions struct {
Md5Base64, Sha256Hex string
SSE encrypt.ServerSide
CustomHeader, Trailer http.Header
DisableContentSha256 bool
}
// PutObjectPart - Upload an object part.
func (c Core) PutObjectPart(ctx context.Context, bucket, object, uploadID string, partID int,
data io.Reader, size int64, opts PutObjectPartOptions,
) (ObjectPart, error) {
p := uploadPartParams{
bucketName: bucket,
objectName: object,
uploadID: uploadID,
reader: data,
partNumber: partID,
md5Base64: opts.Md5Base64,
sha256Hex: opts.Sha256Hex,
size: size,
sse: opts.SSE,
streamSha256: !opts.DisableContentSha256,
customHeader: opts.CustomHeader,
trailer: opts.Trailer,
}
return c.uploadPart(ctx, p)
}
// ListObjectParts - List uploaded parts of an incomplete upload.x
func (c Core) ListObjectParts(ctx context.Context, bucket, object, uploadID string, partNumberMarker, maxParts int) (result ListObjectPartsResult, err error) {
return c.listObjectPartsQuery(ctx, bucket, object, uploadID, partNumberMarker, maxParts)
}
// CompleteMultipartUpload - Concatenate uploaded parts and commit to an object.
func (c Core) CompleteMultipartUpload(ctx context.Context, bucket, object, uploadID string, parts []CompletePart, opts PutObjectOptions) (UploadInfo, error) {
res, err := c.completeMultipartUpload(ctx, bucket, object, uploadID, completeMultipartUpload{
Parts: parts,
}, opts)
return res, err
}
// AbortMultipartUpload - Abort an incomplete upload.
func (c Core) AbortMultipartUpload(ctx context.Context, bucket, object, uploadID string) error {
return c.abortMultipartUpload(ctx, bucket, object, uploadID)
}
// GetBucketPolicy - fetches bucket access policy for a given bucket.
func (c Core) GetBucketPolicy(ctx context.Context, bucket string) (string, error) {
return c.getBucketPolicy(ctx, bucket)
}
// PutBucketPolicy - applies a new bucket access policy for a given bucket.
func (c Core) PutBucketPolicy(ctx context.Context, bucket, bucketPolicy string) error {
return c.putBucketPolicy(ctx, bucket, bucketPolicy)
}
// GetObject is a lower level API implemented to support reading
// partial objects and also downloading objects with special conditions
// matching etag, modtime etc.
func (c Core) GetObject(ctx context.Context, bucketName, objectName string, opts GetObjectOptions) (io.ReadCloser, ObjectInfo, http.Header, error) {
return c.getObject(ctx, bucketName, objectName, opts)
}
+182
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2025 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"context"
"encoding/xml"
"errors"
"net"
"net/http"
"net/url"
"path"
"time"
"github.com/minio/minio-go/v7/pkg/credentials"
"github.com/minio/minio-go/v7/pkg/s3utils"
"github.com/minio/minio-go/v7/pkg/signer"
)
// SessionMode - session mode type there are only two types
type SessionMode string
// Session constants
const (
SessionReadWrite SessionMode = "ReadWrite"
SessionReadOnly SessionMode = "ReadOnly"
)
type createSessionResult struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CreateSessionResult"`
Credentials struct {
AccessKey string `xml:"AccessKeyId" json:"accessKey,omitempty"`
SecretKey string `xml:"SecretAccessKey" json:"secretKey,omitempty"`
SessionToken string `xml:"SessionToken" json:"sessionToken,omitempty"`
Expiration time.Time `xml:"Expiration" json:"expiration,omitempty"`
} `xml:",omitempty"`
}
// CreateSession - https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateSession.html
// the returning credentials may be cached depending on the expiration of the original
// credential, credentials will get renewed 10 secs earlier than when its gonna expire
// allowing for some leeway in the renewal process.
func (c *Client) CreateSession(ctx context.Context, bucketName string, sessionMode SessionMode) (cred credentials.Value, err error) {
if err := s3utils.CheckValidBucketNameS3Express(bucketName); err != nil {
return credentials.Value{}, err
}
v, ok := c.bucketSessionCache.Get(bucketName)
if ok && v.Expiration.After(time.Now().Add(10*time.Second)) {
// Verify if the credentials will not expire
// in another 10 seconds, if not we renew it again.
return v, nil
}
req, err := c.createSessionRequest(ctx, bucketName, sessionMode)
if err != nil {
return credentials.Value{}, err
}
resp, err := c.do(req)
defer closeResponse(resp)
if err != nil {
return credentials.Value{}, err
}
if resp.StatusCode != http.StatusOK {
return credentials.Value{}, httpRespToErrorResponse(resp, bucketName, "")
}
credSession := &createSessionResult{}
dec := xml.NewDecoder(resp.Body)
if err = dec.Decode(credSession); err != nil {
return credentials.Value{}, err
}
defer c.bucketSessionCache.Set(bucketName, cred)
return credentials.Value{
AccessKeyID: credSession.Credentials.AccessKey,
SecretAccessKey: credSession.Credentials.SecretKey,
SessionToken: credSession.Credentials.SessionToken,
Expiration: credSession.Credentials.Expiration,
}, nil
}
// createSessionRequest - Wrapper creates a new CreateSession request.
func (c *Client) createSessionRequest(ctx context.Context, bucketName string, sessionMode SessionMode) (*http.Request, error) {
// Set location query.
urlValues := make(url.Values)
urlValues.Set("session", "")
// Set get bucket location always as path style.
targetURL := *c.endpointURL
// Fetch new host based on the bucket location.
host := getS3ExpressEndpoint(c.region, s3utils.IsS3ExpressBucket(bucketName))
// as it works in makeTargetURL method from api.go file
if h, p, err := net.SplitHostPort(host); err == nil {
if targetURL.Scheme == "http" && p == "80" || targetURL.Scheme == "https" && p == "443" {
host = h
if ip := net.ParseIP(h); ip != nil && ip.To4() == nil {
host = "[" + h + "]"
}
}
}
isVirtualStyle := c.isVirtualHostStyleRequest(targetURL, bucketName)
var urlStr string
if isVirtualStyle {
urlStr = c.endpointURL.Scheme + "://" + bucketName + "." + host + "/?session"
} else {
targetURL.Path = path.Join(bucketName, "") + "/"
targetURL.RawQuery = urlValues.Encode()
urlStr = targetURL.String()
}
// Get a new HTTP request for the method.
req, err := http.NewRequestWithContext(ctx, http.MethodGet, urlStr, nil)
if err != nil {
return nil, err
}
// Set UserAgent for the request.
c.setUserAgent(req)
// Get credentials from the configured credentials provider.
value, err := c.credsProvider.GetWithContext(c.CredContext())
if err != nil {
return nil, err
}
var (
signerType = value.SignerType
accessKeyID = value.AccessKeyID
secretAccessKey = value.SecretAccessKey
sessionToken = value.SessionToken
)
// Custom signer set then override the behavior.
if c.overrideSignerType != credentials.SignatureDefault {
signerType = c.overrideSignerType
}
// If signerType returned by credentials helper is anonymous,
// then do not sign regardless of signerType override.
if value.SignerType == credentials.SignatureAnonymous {
signerType = credentials.SignatureAnonymous
}
if signerType.IsAnonymous() || signerType.IsV2() {
return req, errors.New("Only signature v4 is supported for CreateSession() API")
}
// Set sha256 sum for signature calculation only with signature version '4'.
contentSha256 := emptySHA256Hex
if c.secure {
contentSha256 = unsignedPayload
}
req.Header.Set("X-Amz-Content-Sha256", contentSha256)
req.Header.Set("x-amz-create-session-mode", string(sessionMode))
req = signer.SignV4Express(*req, accessKeyID, secretAccessKey, sessionToken, c.region)
return req, nil
}
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2024 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
type awsS3Endpoint struct {
endpoint string
dualstackEndpoint string
}
type awsS3ExpressEndpoint struct {
regionalEndpoint string
zonalEndpoints []string
}
var awsS3ExpressEndpointMap = map[string]awsS3ExpressEndpoint{
"us-east-1": {
"s3express-control.us-east-1.amazonaws.com",
[]string{
"s3express-use1-az4.us-east-1.amazonaws.com",
"s3express-use1-az5.us-east-1.amazonaws.com",
"3express-use1-az6.us-east-1.amazonaws.com",
},
},
"us-east-2": {
"s3express-control.us-east-2.amazonaws.com",
[]string{
"s3express-use2-az1.us-east-2.amazonaws.com",
"s3express-use2-az2.us-east-2.amazonaws.com",
},
},
"us-west-2": {
"s3express-control.us-west-2.amazonaws.com",
[]string{
"s3express-usw2-az1.us-west-2.amazonaws.com",
"s3express-usw2-az3.us-west-2.amazonaws.com",
"s3express-usw2-az4.us-west-2.amazonaws.com",
},
},
"ap-south-1": {
"s3express-control.ap-south-1.amazonaws.com",
[]string{
"s3express-aps1-az1.ap-south-1.amazonaws.com",
"s3express-aps1-az3.ap-south-1.amazonaws.com",
},
},
"ap-northeast-1": {
"s3express-control.ap-northeast-1.amazonaws.com",
[]string{
"s3express-apne1-az1.ap-northeast-1.amazonaws.com",
"s3express-apne1-az4.ap-northeast-1.amazonaws.com",
},
},
"eu-west-1": {
"s3express-control.eu-west-1.amazonaws.com",
[]string{
"s3express-euw1-az1.eu-west-1.amazonaws.com",
"s3express-euw1-az3.eu-west-1.amazonaws.com",
},
},
"eu-north-1": {
"s3express-control.eu-north-1.amazonaws.com",
[]string{
"s3express-eun1-az1.eu-north-1.amazonaws.com",
"s3express-eun1-az2.eu-north-1.amazonaws.com",
"s3express-eun1-az3.eu-north-1.amazonaws.com",
},
},
}
// awsS3EndpointMap Amazon S3 endpoint map.
var awsS3EndpointMap = map[string]awsS3Endpoint{
"us-east-1": {
"s3.us-east-1.amazonaws.com",
"s3.dualstack.us-east-1.amazonaws.com",
},
"us-east-2": {
"s3.us-east-2.amazonaws.com",
"s3.dualstack.us-east-2.amazonaws.com",
},
"us-iso-east-1": {
"s3.us-iso-east-1.c2s.ic.gov",
"", // dualstack endpoint doesn't exist
},
"us-isob-east-1": {
"s3.us-isob-east-1.sc2s.sgov.gov",
"", // dualstack endpoint doesn't exist
},
"us-iso-west-1": {
"s3.us-iso-west-1.c2s.ic.gov",
"", // dualstack endpoint doesn't exist
},
"us-west-2": {
"s3.us-west-2.amazonaws.com",
"s3.dualstack.us-west-2.amazonaws.com",
},
"us-west-1": {
"s3.us-west-1.amazonaws.com",
"s3.dualstack.us-west-1.amazonaws.com",
},
"ca-central-1": {
"s3.ca-central-1.amazonaws.com",
"s3.dualstack.ca-central-1.amazonaws.com",
},
"ca-west-1": {
"s3.ca-west-1.amazonaws.com",
"s3.dualstack.ca-west-1.amazonaws.com",
},
"eu-west-1": {
"s3.eu-west-1.amazonaws.com",
"s3.dualstack.eu-west-1.amazonaws.com",
},
"eu-west-2": {
"s3.eu-west-2.amazonaws.com",
"s3.dualstack.eu-west-2.amazonaws.com",
},
"eu-west-3": {
"s3.eu-west-3.amazonaws.com",
"s3.dualstack.eu-west-3.amazonaws.com",
},
"eu-central-1": {
"s3.eu-central-1.amazonaws.com",
"s3.dualstack.eu-central-1.amazonaws.com",
},
"eu-central-2": {
"s3.eu-central-2.amazonaws.com",
"s3.dualstack.eu-central-2.amazonaws.com",
},
"eu-north-1": {
"s3.eu-north-1.amazonaws.com",
"s3.dualstack.eu-north-1.amazonaws.com",
},
"eu-south-1": {
"s3.eu-south-1.amazonaws.com",
"s3.dualstack.eu-south-1.amazonaws.com",
},
"eu-south-2": {
"s3.eu-south-2.amazonaws.com",
"s3.dualstack.eu-south-2.amazonaws.com",
},
"ap-east-1": {
"s3.ap-east-1.amazonaws.com",
"s3.dualstack.ap-east-1.amazonaws.com",
},
"ap-south-1": {
"s3.ap-south-1.amazonaws.com",
"s3.dualstack.ap-south-1.amazonaws.com",
},
"ap-south-2": {
"s3.ap-south-2.amazonaws.com",
"s3.dualstack.ap-south-2.amazonaws.com",
},
"ap-southeast-1": {
"s3.ap-southeast-1.amazonaws.com",
"s3.dualstack.ap-southeast-1.amazonaws.com",
},
"ap-southeast-2": {
"s3.ap-southeast-2.amazonaws.com",
"s3.dualstack.ap-southeast-2.amazonaws.com",
},
"ap-southeast-3": {
"s3.ap-southeast-3.amazonaws.com",
"s3.dualstack.ap-southeast-3.amazonaws.com",
},
"ap-southeast-4": {
"s3.ap-southeast-4.amazonaws.com",
"s3.dualstack.ap-southeast-4.amazonaws.com",
},
"ap-northeast-1": {
"s3.ap-northeast-1.amazonaws.com",
"s3.dualstack.ap-northeast-1.amazonaws.com",
},
"ap-northeast-2": {
"s3.ap-northeast-2.amazonaws.com",
"s3.dualstack.ap-northeast-2.amazonaws.com",
},
"ap-northeast-3": {
"s3.ap-northeast-3.amazonaws.com",
"s3.dualstack.ap-northeast-3.amazonaws.com",
},
"af-south-1": {
"s3.af-south-1.amazonaws.com",
"s3.dualstack.af-south-1.amazonaws.com",
},
"me-central-1": {
"s3.me-central-1.amazonaws.com",
"s3.dualstack.me-central-1.amazonaws.com",
},
"me-south-1": {
"s3.me-south-1.amazonaws.com",
"s3.dualstack.me-south-1.amazonaws.com",
},
"sa-east-1": {
"s3.sa-east-1.amazonaws.com",
"s3.dualstack.sa-east-1.amazonaws.com",
},
"us-gov-west-1": {
"s3.us-gov-west-1.amazonaws.com",
"s3.dualstack.us-gov-west-1.amazonaws.com",
},
"us-gov-east-1": {
"s3.us-gov-east-1.amazonaws.com",
"s3.dualstack.us-gov-east-1.amazonaws.com",
},
"cn-north-1": {
"s3.cn-north-1.amazonaws.com.cn",
"s3.dualstack.cn-north-1.amazonaws.com.cn",
},
"cn-northwest-1": {
"s3.cn-northwest-1.amazonaws.com.cn",
"s3.dualstack.cn-northwest-1.amazonaws.com.cn",
},
"il-central-1": {
"s3.il-central-1.amazonaws.com",
"s3.dualstack.il-central-1.amazonaws.com",
},
"ap-southeast-5": {
"s3.ap-southeast-5.amazonaws.com",
"s3.dualstack.ap-southeast-5.amazonaws.com",
},
"ap-southeast-7": {
"s3.ap-southeast-7.amazonaws.com",
"s3.dualstack.ap-southeast-7.amazonaws.com",
},
"mx-central-1": {
"s3.mx-central-1.amazonaws.com",
"s3.dualstack.mx-central-1.amazonaws.com",
},
"ap-east-2": {
"s3.ap-east-2.amazonaws.com",
"s3.dualstack.ap-east-2.amazonaws.com",
},
}
// getS3ExpressEndpoint get Amazon S3 Express endpoing based on the region
// optionally if zonal is set returns first zonal endpoint.
func getS3ExpressEndpoint(region string, zonal bool) (endpoint string) {
s3ExpEndpoint, ok := awsS3ExpressEndpointMap[region]
if !ok {
return ""
}
if zonal {
return s3ExpEndpoint.zonalEndpoints[0]
}
return s3ExpEndpoint.regionalEndpoint
}
// getS3Endpoint get Amazon S3 endpoint based on the bucket location.
func getS3Endpoint(bucketLocation string, useDualstack bool) (endpoint string) {
s3Endpoint, ok := awsS3EndpointMap[bucketLocation]
if !ok {
// Default to 's3.us-east-1.amazonaws.com' endpoint.
if useDualstack {
return "s3.dualstack.us-east-1.amazonaws.com"
}
return "s3.us-east-1.amazonaws.com"
}
if useDualstack && s3Endpoint.dualstackEndpoint != "" {
return s3Endpoint.dualstackEndpoint
}
return s3Endpoint.endpoint
}
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+93
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package minio
import (
"fmt"
"io"
)
// hookReader hooks additional reader in the source stream. It is
// useful for making progress bars. Second reader is appropriately
// notified about the exact number of bytes read from the primary
// source on each Read operation.
type hookReader struct {
source io.Reader
hook io.Reader
}
// Seek implements io.Seeker. Seeks source first, and if necessary
// seeks hook if Seek method is appropriately found.
func (hr *hookReader) Seek(offset int64, whence int) (n int64, err error) {
// Verify for source has embedded Seeker, use it.
sourceSeeker, ok := hr.source.(io.Seeker)
if ok {
n, err = sourceSeeker.Seek(offset, whence)
if err != nil {
return 0, err
}
}
if hr.hook != nil {
// Verify if hook has embedded Seeker, use it.
hookSeeker, ok := hr.hook.(io.Seeker)
if ok {
var m int64
m, err = hookSeeker.Seek(offset, whence)
if err != nil {
return 0, err
}
if n != m {
return 0, fmt.Errorf("hook seeker seeked %d bytes, expected source %d bytes", m, n)
}
}
}
return n, nil
}
// Read implements io.Reader. Always reads from the source, the return
// value 'n' number of bytes are reported through the hook. Returns
// error for all non io.EOF conditions.
func (hr *hookReader) Read(b []byte) (n int, err error) {
n, err = hr.source.Read(b)
if err != nil && err != io.EOF {
return n, err
}
if hr.hook != nil {
// Progress the hook with the total read bytes from the source.
if _, herr := hr.hook.Read(b[:n]); herr != nil {
if herr != io.EOF {
return n, herr
}
}
}
return n, err
}
// newHook returns a io.ReadSeeker which implements hookReader that
// reports the data read from the source to the hook.
func newHook(source, hook io.Reader) io.Reader {
if hook == nil {
return &hookReader{source: source}
}
return &hookReader{
source: source,
hook: hook,
}
}
+91
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2024 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cors
import (
"encoding/xml"
"fmt"
"io"
"strings"
"github.com/dustin/go-humanize"
)
const defaultXMLNS = "http://s3.amazonaws.com/doc/2006-03-01/"
// Config is the container for a CORS configuration for a bucket.
type Config struct {
XMLNS string `xml:"xmlns,attr,omitempty"`
XMLName xml.Name `xml:"CORSConfiguration"`
CORSRules []Rule `xml:"CORSRule"`
}
// Rule is a single rule in a CORS configuration.
type Rule struct {
AllowedHeader []string `xml:"AllowedHeader,omitempty"`
AllowedMethod []string `xml:"AllowedMethod,omitempty"`
AllowedOrigin []string `xml:"AllowedOrigin,omitempty"`
ExposeHeader []string `xml:"ExposeHeader,omitempty"`
ID string `xml:"ID,omitempty"`
MaxAgeSeconds int `xml:"MaxAgeSeconds,omitempty"`
}
// NewConfig creates a new CORS configuration with the given rules.
func NewConfig(rules []Rule) *Config {
return &Config{
XMLNS: defaultXMLNS,
XMLName: xml.Name{
Local: "CORSConfiguration",
Space: defaultXMLNS,
},
CORSRules: rules,
}
}
// ParseBucketCorsConfig parses a CORS configuration in XML from an io.Reader.
func ParseBucketCorsConfig(reader io.Reader) (*Config, error) {
var c Config
// Max size of cors document is 64KiB according to https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketCors.html
// This limiter is just for safety so has a max of 128KiB
err := xml.NewDecoder(io.LimitReader(reader, 128*humanize.KiByte)).Decode(&c)
if err != nil {
return nil, fmt.Errorf("decoding xml: %w", err)
}
if c.XMLNS == "" {
c.XMLNS = defaultXMLNS
}
for i, rule := range c.CORSRules {
for j, method := range rule.AllowedMethod {
c.CORSRules[i].AllowedMethod[j] = strings.ToUpper(method)
}
}
return &c, nil
}
// ToXML marshals the CORS configuration to XML.
func (c Config) ToXML() ([]byte, error) {
if c.XMLNS == "" {
c.XMLNS = defaultXMLNS
}
data, err := xml.Marshal(&c)
if err != nil {
return nil, fmt.Errorf("marshaling xml: %w", err)
}
return append([]byte(xml.Header), data...), nil
}
@@ -0,0 +1,269 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"bytes"
"crypto/sha256"
"encoding/hex"
"encoding/xml"
"errors"
"io"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/minio/minio-go/v7/pkg/signer"
)
// AssumeRoleResponse contains the result of successful AssumeRole request.
type AssumeRoleResponse struct {
XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ AssumeRoleResponse" json:"-"`
Result AssumeRoleResult `xml:"AssumeRoleResult"`
ResponseMetadata struct {
RequestID string `xml:"RequestId,omitempty"`
} `xml:"ResponseMetadata,omitempty"`
}
// AssumeRoleResult - Contains the response to a successful AssumeRole
// request, including temporary credentials that can be used to make
// MinIO API requests.
type AssumeRoleResult struct {
// The identifiers for the temporary security credentials that the operation
// returns.
AssumedRoleUser AssumedRoleUser `xml:",omitempty"`
// The temporary security credentials, which include an access key ID, a secret
// access key, and a security (or session) token.
//
// Note: The size of the security token that STS APIs return is not fixed. We
// strongly recommend that you make no assumptions about the maximum size. As
// of this writing, the typical size is less than 4096 bytes, but that can vary.
// Also, future updates to AWS might require larger sizes.
Credentials struct {
AccessKey string `xml:"AccessKeyId" json:"accessKey,omitempty"`
SecretKey string `xml:"SecretAccessKey" json:"secretKey,omitempty"`
Expiration time.Time `xml:"Expiration" json:"expiration,omitempty"`
SessionToken string `xml:"SessionToken" json:"sessionToken,omitempty"`
} `xml:",omitempty"`
// A percentage value that indicates the size of the policy in packed form.
// The service rejects any policy with a packed size greater than 100 percent,
// which means the policy exceeded the allowed space.
PackedPolicySize int `xml:",omitempty"`
}
// A STSAssumeRole retrieves credentials from MinIO service, and keeps track if
// those credentials are expired.
type STSAssumeRole struct {
Expiry
// Optional http Client to use when connecting to MinIO STS service
// (overrides default client in CredContext)
Client *http.Client
// STS endpoint to fetch STS credentials.
STSEndpoint string
// various options for this request.
Options STSAssumeRoleOptions
}
// STSAssumeRoleOptions collection of various input options
// to obtain AssumeRole credentials.
type STSAssumeRoleOptions struct {
// Mandatory inputs.
AccessKey string
SecretKey string
SessionToken string // Optional if the first request is made with temporary credentials.
Policy string // Optional to assign a policy to the assumed role
Location string // Optional commonly needed with AWS STS.
DurationSeconds int // Optional defaults to 1 hour.
// Optional only valid if using with AWS STS
RoleARN string
RoleSessionName string
ExternalID string
TokenRevokeType string // Optional, used for token revokation (MinIO only extension)
}
// NewSTSAssumeRole returns a pointer to a new
// Credentials object wrapping the STSAssumeRole.
func NewSTSAssumeRole(stsEndpoint string, opts STSAssumeRoleOptions) (*Credentials, error) {
if opts.AccessKey == "" || opts.SecretKey == "" {
return nil, errors.New("AssumeRole credentials access/secretkey is mandatory")
}
return New(&STSAssumeRole{
STSEndpoint: stsEndpoint,
Options: opts,
}), nil
}
const defaultDurationSeconds = 3600
// closeResponse close non nil response with any response Body.
// convenient wrapper to drain any remaining data on response body.
//
// Subsequently this allows golang http RoundTripper
// to re-use the same connection for future requests.
func closeResponse(resp *http.Response) {
// Callers should close resp.Body when done reading from it.
// If resp.Body is not closed, the Client's underlying RoundTripper
// (typically Transport) may not be able to re-use a persistent TCP
// connection to the server for a subsequent "keep-alive" request.
if resp != nil && resp.Body != nil {
// Drain any remaining Body and then close the connection.
// Without this closing connection would disallow re-using
// the same connection for future uses.
// - http://stackoverflow.com/a/17961593/4465767
io.Copy(io.Discard, resp.Body)
resp.Body.Close()
}
}
func getAssumeRoleCredentials(clnt *http.Client, endpoint string, opts STSAssumeRoleOptions) (AssumeRoleResponse, error) {
v := url.Values{}
v.Set("Action", "AssumeRole")
v.Set("Version", STSVersion)
if opts.RoleARN != "" {
v.Set("RoleArn", opts.RoleARN)
}
if opts.RoleSessionName != "" {
v.Set("RoleSessionName", opts.RoleSessionName)
}
if opts.DurationSeconds > defaultDurationSeconds {
v.Set("DurationSeconds", strconv.Itoa(opts.DurationSeconds))
} else {
v.Set("DurationSeconds", strconv.Itoa(defaultDurationSeconds))
}
if opts.Policy != "" {
v.Set("Policy", opts.Policy)
}
if opts.ExternalID != "" {
v.Set("ExternalId", opts.ExternalID)
}
if opts.TokenRevokeType != "" {
v.Set("TokenRevokeType", opts.TokenRevokeType)
}
u, err := url.Parse(endpoint)
if err != nil {
return AssumeRoleResponse{}, err
}
u.Path = "/"
postBody := strings.NewReader(v.Encode())
hash := sha256.New()
if _, err = io.Copy(hash, postBody); err != nil {
return AssumeRoleResponse{}, err
}
postBody.Seek(0, 0)
req, err := http.NewRequest(http.MethodPost, u.String(), postBody)
if err != nil {
return AssumeRoleResponse{}, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("X-Amz-Content-Sha256", hex.EncodeToString(hash.Sum(nil)))
if opts.SessionToken != "" {
req.Header.Set("X-Amz-Security-Token", opts.SessionToken)
}
req = signer.SignV4STS(*req, opts.AccessKey, opts.SecretKey, opts.Location)
resp, err := clnt.Do(req)
if err != nil {
return AssumeRoleResponse{}, err
}
defer closeResponse(resp)
if resp.StatusCode != http.StatusOK {
var errResp ErrorResponse
buf, err := io.ReadAll(resp.Body)
if err != nil {
return AssumeRoleResponse{}, err
}
_, err = xmlDecodeAndBody(bytes.NewReader(buf), &errResp)
if err != nil {
var s3Err Error
if _, err = xmlDecodeAndBody(bytes.NewReader(buf), &s3Err); err != nil {
return AssumeRoleResponse{}, err
}
errResp.RequestID = s3Err.RequestID
errResp.STSError.Code = s3Err.Code
errResp.STSError.Message = s3Err.Message
}
return AssumeRoleResponse{}, errResp
}
a := AssumeRoleResponse{}
if _, err = xmlDecodeAndBody(resp.Body, &a); err != nil {
return AssumeRoleResponse{}, err
}
return a, nil
}
// RetrieveWithCredContext retrieves credentials from the MinIO service.
// Error will be returned if the request fails, optional cred context.
func (m *STSAssumeRole) RetrieveWithCredContext(cc *CredContext) (Value, error) {
if cc == nil {
cc = defaultCredContext
}
client := m.Client
if client == nil {
client = cc.Client
}
if client == nil {
client = defaultCredContext.Client
}
stsEndpoint := m.STSEndpoint
if stsEndpoint == "" {
stsEndpoint = cc.Endpoint
}
if stsEndpoint == "" {
return Value{}, errors.New("STS endpoint unknown")
}
a, err := getAssumeRoleCredentials(client, stsEndpoint, m.Options)
if err != nil {
return Value{}, err
}
// Expiry window is set to 10secs.
m.SetExpiration(a.Result.Credentials.Expiration, DefaultExpiryWindow)
return Value{
AccessKeyID: a.Result.Credentials.AccessKey,
SecretAccessKey: a.Result.Credentials.SecretKey,
SessionToken: a.Result.Credentials.SessionToken,
Expiration: a.Result.Credentials.Expiration,
SignerType: SignatureV4,
}, nil
}
// Retrieve retrieves credentials from the MinIO service.
// Error will be returned if the request fails.
func (m *STSAssumeRole) Retrieve() (Value, error) {
return m.RetrieveWithCredContext(nil)
}
+106
View File
@@ -0,0 +1,106 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
// A Chain will search for a provider which returns credentials
// and cache that provider until Retrieve is called again.
//
// The Chain provides a way of chaining multiple providers together
// which will pick the first available using priority order of the
// Providers in the list.
//
// If none of the Providers retrieve valid credentials Value, ChainProvider's
// Retrieve() will return the no credentials value.
//
// If a Provider is found which returns valid credentials Value ChainProvider
// will cache that Provider for all calls to IsExpired(), until Retrieve is
// called again after IsExpired() is true.
//
// creds := credentials.NewChainCredentials(
// []credentials.Provider{
// &credentials.EnvAWSS3{},
// &credentials.EnvMinio{},
// })
//
// // Usage of ChainCredentials.
// mc, err := minio.NewWithCredentials(endpoint, creds, secure, "us-east-1")
// if err != nil {
// log.Fatalln(err)
// }
type Chain struct {
Providers []Provider
curr Provider
}
// NewChainCredentials returns a pointer to a new Credentials object
// wrapping a chain of providers.
func NewChainCredentials(providers []Provider) *Credentials {
return New(&Chain{
Providers: append([]Provider{}, providers...),
})
}
// RetrieveWithCredContext is like Retrieve with CredContext
func (c *Chain) RetrieveWithCredContext(cc *CredContext) (Value, error) {
for _, p := range c.Providers {
creds, _ := p.RetrieveWithCredContext(cc)
// Always prioritize non-anonymous providers, if any.
if creds.AccessKeyID == "" && creds.SecretAccessKey == "" {
continue
}
c.curr = p
return creds, nil
}
// At this point we have exhausted all the providers and
// are left without any credentials return anonymous.
return Value{
SignerType: SignatureAnonymous,
}, nil
}
// Retrieve returns the credentials value, returns no credentials(anonymous)
// if no credentials provider returned any value.
//
// If a provider is found with credentials, it will be cached and any calls
// to IsExpired() will return the expired state of the cached provider.
func (c *Chain) Retrieve() (Value, error) {
for _, p := range c.Providers {
creds, _ := p.Retrieve()
// Always prioritize non-anonymous providers, if any.
if creds.AccessKeyID == "" && creds.SecretAccessKey == "" {
continue
}
c.curr = p
return creds, nil
}
// At this point we have exhausted all the providers and
// are left without any credentials return anonymous.
return Value{
SignerType: SignatureAnonymous,
}, nil
}
// IsExpired will returned the expired state of the currently cached provider
// if there is one. If there is no current provider, true will be returned.
func (c *Chain) IsExpired() bool {
if c.curr != nil {
return c.curr.IsExpired()
}
return true
}
@@ -0,0 +1,17 @@
{
"version": "8",
"hosts": {
"play": {
"url": "https://play.min.io",
"accessKey": "Q3AM3UQ867SPQQA43P2F",
"secretKey": "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG",
"api": "S3v2"
},
"s3": {
"url": "https://s3.amazonaws.com",
"accessKey": "accessKey",
"secretKey": "secret",
"api": "S3v4"
}
}
}
@@ -0,0 +1,242 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"net/http"
"sync"
"time"
)
const (
// STSVersion sts version string
STSVersion = "2011-06-15"
// How much duration to slash from the given expiration duration
defaultExpiryWindow = 0.8
)
// defaultCredContext is used when the credential context doesn't
// actually matter or the default context is suitable.
var defaultCredContext = &CredContext{Client: http.DefaultClient}
// A Value is the S3 credentials value for individual credential fields.
type Value struct {
// S3 Access key ID
AccessKeyID string
// S3 Secret Access Key
SecretAccessKey string
// S3 Session Token
SessionToken string
// Expiration of this credentials - null means no expiration associated
Expiration time.Time
// Signature Type.
SignerType SignatureType
}
// A Provider is the interface for any component which will provide credentials
// Value. A provider is required to manage its own Expired state, and what to
// be expired means.
type Provider interface {
// RetrieveWithCredContext returns nil if it successfully retrieved the
// value. Error is returned if the value were not obtainable, or empty.
// optionally takes CredContext for additional context to retrieve credentials.
RetrieveWithCredContext(cc *CredContext) (Value, error)
// Retrieve returns nil if it successfully retrieved the value.
// Error is returned if the value were not obtainable, or empty.
//
// Deprecated: Retrieve() exists for historical compatibility and should not
// be used. To get new credentials use the RetrieveWithCredContext function
// to ensure the proper context (i.e. HTTP client) will be used.
Retrieve() (Value, error)
// IsExpired returns if the credentials are no longer valid, and need
// to be retrieved.
IsExpired() bool
}
// CredContext is passed to the Retrieve function of a provider to provide
// some additional context to retrieve credentials.
type CredContext struct {
// Client specifies the HTTP client that should be used if an HTTP
// request is to be made to fetch the credentials.
Client *http.Client
// Endpoint specifies the MinIO endpoint that will be used if no
// explicit endpoint is provided.
Endpoint string
}
// A Expiry provides shared expiration logic to be used by credentials
// providers to implement expiry functionality.
//
// The best method to use this struct is as an anonymous field within the
// provider's struct.
//
// Example:
//
// type IAMCredentialProvider struct {
// Expiry
// ...
// }
type Expiry struct {
// The date/time when to expire on
expiration time.Time
// If set will be used by IsExpired to determine the current time.
// Defaults to time.Now if CurrentTime is not set.
CurrentTime func() time.Time
}
// SetExpiration sets the expiration IsExpired will check when called.
//
// If window is greater than 0 the expiration time will be reduced by the
// window value.
//
// Using a window is helpful to trigger credentials to expire sooner than
// the expiration time given to ensure no requests are made with expired
// tokens.
func (e *Expiry) SetExpiration(expiration time.Time, window time.Duration) {
if e.CurrentTime == nil {
e.CurrentTime = time.Now
}
cut := window
if cut < 0 {
expireIn := expiration.Sub(e.CurrentTime())
cut = time.Duration(float64(expireIn) * (1 - defaultExpiryWindow))
}
e.expiration = expiration.Add(-cut)
}
// IsExpired returns if the credentials are expired.
func (e *Expiry) IsExpired() bool {
if e.CurrentTime == nil {
e.CurrentTime = time.Now
}
return e.expiration.Before(e.CurrentTime())
}
// Credentials - A container for synchronous safe retrieval of credentials Value.
// Credentials will cache the credentials value until they expire. Once the value
// expires the next Get will attempt to retrieve valid credentials.
//
// Credentials is safe to use across multiple goroutines and will manage the
// synchronous state so the Providers do not need to implement their own
// synchronization.
//
// The first Credentials.Get() will always call Provider.Retrieve() to get the
// first instance of the credentials Value. All calls to Get() after that
// will return the cached credentials Value until IsExpired() returns true.
type Credentials struct {
sync.Mutex
creds Value
forceRefresh bool
provider Provider
}
// New returns a pointer to a new Credentials with the provider set.
func New(provider Provider) *Credentials {
return &Credentials{
provider: provider,
forceRefresh: true,
}
}
// Get returns the credentials value, or error if the credentials Value failed
// to be retrieved.
//
// Will return the cached credentials Value if it has not expired. If the
// credentials Value has expired the Provider's Retrieve() will be called
// to refresh the credentials.
//
// If Credentials.Expire() was called the credentials Value will be force
// expired, and the next call to Get() will cause them to be refreshed.
//
// Deprecated: Get() exists for historical compatibility and should not be
// used. To get new credentials use the Credentials.GetWithContext function
// to ensure the proper context (i.e. HTTP client) will be used.
func (c *Credentials) Get() (Value, error) {
return c.GetWithContext(nil)
}
// GetWithContext returns the credentials value, or error if the
// credentials Value failed to be retrieved.
//
// Will return the cached credentials Value if it has not expired. If the
// credentials Value has expired the Provider's Retrieve() will be called
// to refresh the credentials.
//
// If Credentials.Expire() was called the credentials Value will be force
// expired, and the next call to Get() will cause them to be refreshed.
func (c *Credentials) GetWithContext(cc *CredContext) (Value, error) {
if c == nil {
return Value{}, nil
}
if cc == nil {
cc = defaultCredContext
}
c.Lock()
defer c.Unlock()
if c.isExpired() {
creds, err := c.provider.RetrieveWithCredContext(cc)
if err != nil {
return Value{}, err
}
c.creds = creds
c.forceRefresh = false
}
return c.creds, nil
}
// Expire expires the credentials and forces them to be retrieved on the
// next call to Get().
//
// This will override the Provider's expired state, and force Credentials
// to call the Provider's Retrieve().
func (c *Credentials) Expire() {
c.Lock()
defer c.Unlock()
c.forceRefresh = true
}
// IsExpired returns if the credentials are no longer valid, and need
// to be refreshed.
//
// If the Credentials were forced to be expired with Expire() this will
// reflect that override.
func (c *Credentials) IsExpired() bool {
c.Lock()
defer c.Unlock()
return c.isExpired()
}
// isExpired helper method wrapping the definition of expired credentials.
func (c *Credentials) isExpired() bool {
return c.forceRefresh || c.provider.IsExpired()
}
@@ -0,0 +1,7 @@
{
"Version": 1,
"SessionToken": "token",
"AccessKeyId": "accessKey",
"SecretAccessKey": "secret",
"Expiration": "9999-04-27T16:02:25.000Z"
}
@@ -0,0 +1,15 @@
[default]
aws_access_key_id = accessKey
aws_secret_access_key = secret
aws_session_token = token
[no_token]
aws_access_key_id = accessKey
aws_secret_access_key = secret
[with_colon]
aws_access_key_id: accessKey
aws_secret_access_key: secret
[with_process]
credential_process = /bin/cat credentials.json
+60
View File
@@ -0,0 +1,60 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Package credentials provides credential retrieval and management
// for S3 compatible object storage.
//
// By default the Credentials.Get() will cache the successful result of a
// Provider's Retrieve() until Provider.IsExpired() returns true. At which
// point Credentials will call Provider's Retrieve() to get new credential Value.
//
// The Provider is responsible for determining when credentials have expired.
// It is also important to note that Credentials will always call Retrieve the
// first time Credentials.Get() is called.
//
// Example of using the environment variable credentials.
//
// creds := NewFromEnv()
// // Retrieve the credentials value
// credValue, err := creds.Get()
// if err != nil {
// // handle error
// }
//
// Example of forcing credentials to expire and be refreshed on the next Get().
// This may be helpful to proactively expire credentials and refresh them sooner
// than they would naturally expire on their own.
//
// creds := NewFromIAM("")
// creds.Expire()
// credsValue, err := creds.Get()
// // New credentials will be retrieved instead of from cache.
//
// # Custom Provider
//
// Each Provider built into this package also provides a helper method to generate
// a Credentials pointer setup with the provider. To use a custom Provider just
// create a type which satisfies the Provider interface and pass it to the
// NewCredentials method.
//
// type MyProvider struct{}
// func (m *MyProvider) Retrieve() (Value, error) {...}
// func (m *MyProvider) IsExpired() bool {...}
//
// creds := NewCredentials(&MyProvider{})
// credValue, err := creds.Get()
package credentials
+80
View File
@@ -0,0 +1,80 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import "os"
// A EnvAWS retrieves credentials from the environment variables of the
// running process. EnvAWSironment credentials never expire.
//
// EnvAWSironment variables used:
//
// * Access Key ID: AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY.
// * Secret Access Key: AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY.
// * Secret Token: AWS_SESSION_TOKEN.
type EnvAWS struct {
retrieved bool
}
// NewEnvAWS returns a pointer to a new Credentials object
// wrapping the environment variable provider.
func NewEnvAWS() *Credentials {
return New(&EnvAWS{})
}
func (e *EnvAWS) retrieve() (Value, error) {
e.retrieved = false
id := os.Getenv("AWS_ACCESS_KEY_ID")
if id == "" {
id = os.Getenv("AWS_ACCESS_KEY")
}
secret := os.Getenv("AWS_SECRET_ACCESS_KEY")
if secret == "" {
secret = os.Getenv("AWS_SECRET_KEY")
}
signerType := SignatureV4
if id == "" || secret == "" {
signerType = SignatureAnonymous
}
e.retrieved = true
return Value{
AccessKeyID: id,
SecretAccessKey: secret,
SessionToken: os.Getenv("AWS_SESSION_TOKEN"),
SignerType: signerType,
}, nil
}
// Retrieve retrieves the keys from the environment.
func (e *EnvAWS) Retrieve() (Value, error) {
return e.retrieve()
}
// RetrieveWithCredContext is like Retrieve (no-op input of Cred Context)
func (e *EnvAWS) RetrieveWithCredContext(_ *CredContext) (Value, error) {
return e.retrieve()
}
// IsExpired returns if the credentials have been retrieved.
func (e *EnvAWS) IsExpired() bool {
return !e.retrieved
}
@@ -0,0 +1,77 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import "os"
// A EnvMinio retrieves credentials from the environment variables of the
// running process. EnvMinioironment credentials never expire.
//
// Environment variables used:
//
// * Access Key ID: MINIO_ACCESS_KEY.
// * Secret Access Key: MINIO_SECRET_KEY.
// * Access Key ID: MINIO_ROOT_USER.
// * Secret Access Key: MINIO_ROOT_PASSWORD.
type EnvMinio struct {
retrieved bool
}
// NewEnvMinio returns a pointer to a new Credentials object
// wrapping the environment variable provider.
func NewEnvMinio() *Credentials {
return New(&EnvMinio{})
}
func (e *EnvMinio) retrieve() (Value, error) {
e.retrieved = false
id := os.Getenv("MINIO_ROOT_USER")
secret := os.Getenv("MINIO_ROOT_PASSWORD")
signerType := SignatureV4
if id == "" || secret == "" {
id = os.Getenv("MINIO_ACCESS_KEY")
secret = os.Getenv("MINIO_SECRET_KEY")
if id == "" || secret == "" {
signerType = SignatureAnonymous
}
}
e.retrieved = true
return Value{
AccessKeyID: id,
SecretAccessKey: secret,
SignerType: signerType,
}, nil
}
// Retrieve retrieves the keys from the environment.
func (e *EnvMinio) Retrieve() (Value, error) {
return e.retrieve()
}
// RetrieveWithCredContext is like Retrieve() (no-op input cred context)
func (e *EnvMinio) RetrieveWithCredContext(_ *CredContext) (Value, error) {
return e.retrieve()
}
// IsExpired returns if the credentials have been retrieved.
func (e *EnvMinio) IsExpired() bool {
return !e.retrieved
}
@@ -0,0 +1,95 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2021 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"bytes"
"encoding/xml"
"fmt"
"io"
)
// ErrorResponse - Is the typed error returned.
// ErrorResponse struct should be comparable since it is compared inside
// golang http API (https://github.com/golang/go/issues/29768)
type ErrorResponse struct {
XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ ErrorResponse" json:"-"`
STSError struct {
Type string `xml:"Type"`
Code string `xml:"Code"`
Message string `xml:"Message"`
} `xml:"Error"`
RequestID string `xml:"RequestId"`
}
// Error - Is the typed error returned by all API operations.
type Error struct {
XMLName xml.Name `xml:"Error" json:"-"`
Code string
Message string
BucketName string
Key string
Resource string
RequestID string `xml:"RequestId"`
HostID string `xml:"HostId"`
// Region where the bucket is located. This header is returned
// only in HEAD bucket and ListObjects response.
Region string
// Captures the server string returned in response header.
Server string
// Underlying HTTP status code for the returned error
StatusCode int `xml:"-" json:"-"`
}
// Error - Returns S3 error string.
func (e Error) Error() string {
if e.Message == "" {
return fmt.Sprintf("Error response code %s.", e.Code)
}
return e.Message
}
// Error - Returns STS error string.
func (e ErrorResponse) Error() string {
if e.STSError.Message == "" {
return fmt.Sprintf("Error response code %s.", e.STSError.Code)
}
return e.STSError.Message
}
// xmlDecoder provide decoded value in xml.
func xmlDecoder(body io.Reader, v interface{}) error {
d := xml.NewDecoder(body)
return d.Decode(v)
}
// xmlDecodeAndBody reads the whole body up to 1MB and
// tries to XML decode it into v.
// The body that was read and any error from reading or decoding is returned.
func xmlDecodeAndBody(bodyReader io.Reader, v interface{}) ([]byte, error) {
// read the whole body (up to 1MB)
const maxBodyLength = 1 << 20
body, err := io.ReadAll(io.LimitReader(bodyReader, maxBodyLength))
if err != nil {
return nil, err
}
return bytes.TrimSpace(body), xmlDecoder(bytes.NewReader(body), v)
}
@@ -0,0 +1,167 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"encoding/json"
"errors"
"os"
"os/exec"
"path/filepath"
"strings"
"time"
"github.com/go-ini/ini"
)
// A externalProcessCredentials stores the output of a credential_process
type externalProcessCredentials struct {
Version int
SessionToken string
AccessKeyID string `json:"AccessKeyId"`
SecretAccessKey string
Expiration time.Time
}
// A FileAWSCredentials retrieves credentials from the current user's home
// directory, and keeps track if those credentials are expired.
//
// Profile ini file example: $HOME/.aws/credentials
type FileAWSCredentials struct {
Expiry
// Path to the shared credentials file.
//
// If empty will look for "AWS_SHARED_CREDENTIALS_FILE" env variable. If the
// env value is empty will default to current user's home directory.
// Linux/OSX: "$HOME/.aws/credentials"
// Windows: "%USERPROFILE%\.aws\credentials"
Filename string
// AWS Profile to extract credentials from the shared credentials file. If empty
// will default to environment variable "AWS_PROFILE" or "default" if
// environment variable is also not set.
Profile string
// retrieved states if the credentials have been successfully retrieved.
retrieved bool
}
// NewFileAWSCredentials returns a pointer to a new Credentials object
// wrapping the Profile file provider.
func NewFileAWSCredentials(filename, profile string) *Credentials {
return New(&FileAWSCredentials{
Filename: filename,
Profile: profile,
})
}
func (p *FileAWSCredentials) retrieve() (Value, error) {
if p.Filename == "" {
p.Filename = os.Getenv("AWS_SHARED_CREDENTIALS_FILE")
if p.Filename == "" {
homeDir, err := os.UserHomeDir()
if err != nil {
return Value{}, err
}
p.Filename = filepath.Join(homeDir, ".aws", "credentials")
}
}
if p.Profile == "" {
p.Profile = os.Getenv("AWS_PROFILE")
if p.Profile == "" {
p.Profile = "default"
}
}
p.retrieved = false
iniProfile, err := loadProfile(p.Filename, p.Profile)
if err != nil {
return Value{}, err
}
// Default to empty string if not found.
id := iniProfile.Key("aws_access_key_id")
// Default to empty string if not found.
secret := iniProfile.Key("aws_secret_access_key")
// Default to empty string if not found.
token := iniProfile.Key("aws_session_token")
// If credential_process is defined, obtain credentials by executing
// the external process
credentialProcess := strings.TrimSpace(iniProfile.Key("credential_process").String())
if credentialProcess != "" {
args := strings.Fields(credentialProcess)
if len(args) <= 1 {
return Value{}, errors.New("invalid credential process args")
}
cmd := exec.Command(args[0], args[1:]...)
out, err := cmd.Output()
if err != nil {
return Value{}, err
}
var externalProcessCredentials externalProcessCredentials
err = json.Unmarshal([]byte(out), &externalProcessCredentials)
if err != nil {
return Value{}, err
}
p.retrieved = true
p.SetExpiration(externalProcessCredentials.Expiration, DefaultExpiryWindow)
return Value{
AccessKeyID: externalProcessCredentials.AccessKeyID,
SecretAccessKey: externalProcessCredentials.SecretAccessKey,
SessionToken: externalProcessCredentials.SessionToken,
Expiration: externalProcessCredentials.Expiration,
SignerType: SignatureV4,
}, nil
}
p.retrieved = true
return Value{
AccessKeyID: id.String(),
SecretAccessKey: secret.String(),
SessionToken: token.String(),
SignerType: SignatureV4,
}, nil
}
// Retrieve reads and extracts the shared credentials from the current
// users home directory.
func (p *FileAWSCredentials) Retrieve() (Value, error) {
return p.retrieve()
}
// RetrieveWithCredContext is like Retrieve(), cred context is no-op for File credentials
func (p *FileAWSCredentials) RetrieveWithCredContext(_ *CredContext) (Value, error) {
return p.retrieve()
}
// loadProfiles loads from the file pointed to by shared credentials filename for profile.
// The credentials retrieved from the profile will be returned or error. Error will be
// returned if it fails to read from the file, or the data is invalid.
func loadProfile(filename, profile string) (*ini.Section, error) {
config, err := ini.Load(filename)
if err != nil {
return nil, err
}
iniProfile, err := config.GetSection(profile)
if err != nil {
return nil, err
}
return iniProfile, nil
}
@@ -0,0 +1,145 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"encoding/json"
"os"
"path/filepath"
"runtime"
)
// A FileMinioClient retrieves credentials from the current user's home
// directory, and keeps track if those credentials are expired.
//
// Configuration file example: $HOME/.mc/config.json
type FileMinioClient struct {
// Path to the shared credentials file.
//
// If empty will look for "MINIO_SHARED_CREDENTIALS_FILE" env variable. If the
// env value is empty will default to current user's home directory.
// Linux/OSX: "$HOME/.mc/config.json"
// Windows: "%USERALIAS%\mc\config.json"
Filename string
// MinIO Alias to extract credentials from the shared credentials file. If empty
// will default to environment variable "MINIO_ALIAS" or "s3" if
// environment variable is also not set.
Alias string
// retrieved states if the credentials have been successfully retrieved.
retrieved bool
}
// NewFileMinioClient returns a pointer to a new Credentials object
// wrapping the Alias file provider.
func NewFileMinioClient(filename, alias string) *Credentials {
return New(&FileMinioClient{
Filename: filename,
Alias: alias,
})
}
func (p *FileMinioClient) retrieve() (Value, error) {
if p.Filename == "" {
if value, ok := os.LookupEnv("MINIO_SHARED_CREDENTIALS_FILE"); ok {
p.Filename = value
} else {
homeDir, err := os.UserHomeDir()
if err != nil {
return Value{}, err
}
p.Filename = filepath.Join(homeDir, ".mc", "config.json")
if runtime.GOOS == "windows" {
p.Filename = filepath.Join(homeDir, "mc", "config.json")
}
}
}
if p.Alias == "" {
p.Alias = os.Getenv("MINIO_ALIAS")
if p.Alias == "" {
p.Alias = "s3"
}
}
p.retrieved = false
hostCfg, err := loadAlias(p.Filename, p.Alias)
if err != nil {
return Value{}, err
}
p.retrieved = true
return Value{
AccessKeyID: hostCfg.AccessKey,
SecretAccessKey: hostCfg.SecretKey,
SignerType: parseSignatureType(hostCfg.API),
}, nil
}
// Retrieve reads and extracts the shared credentials from the current
// users home directory.
func (p *FileMinioClient) Retrieve() (Value, error) {
return p.retrieve()
}
// RetrieveWithCredContext - is like Retrieve()
func (p *FileMinioClient) RetrieveWithCredContext(_ *CredContext) (Value, error) {
return p.retrieve()
}
// IsExpired returns if the shared credentials have expired.
func (p *FileMinioClient) IsExpired() bool {
return !p.retrieved
}
// hostConfig configuration of a host.
type hostConfig struct {
URL string `json:"url"`
AccessKey string `json:"accessKey"`
SecretKey string `json:"secretKey"`
API string `json:"api"`
}
// config config version.
type config struct {
Version string `json:"version"`
Hosts map[string]hostConfig `json:"hosts"`
Aliases map[string]hostConfig `json:"aliases"`
}
// loadAliass loads from the file pointed to by shared credentials filename for alias.
// The credentials retrieved from the alias will be returned or error. Error will be
// returned if it fails to read from the file.
func loadAlias(filename, alias string) (hostConfig, error) {
cfg := &config{}
configBytes, err := os.ReadFile(filename)
if err != nil {
return hostConfig{}, err
}
if err = json.Unmarshal(configBytes, cfg); err != nil {
return hostConfig{}, err
}
if cfg.Version == "10" {
return cfg.Aliases[alias], nil
}
return cfg.Hosts[alias], nil
}
+471
View File
@@ -0,0 +1,471 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"bufio"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net"
"net/http"
"net/url"
"os"
"path"
"strings"
"time"
)
// DefaultExpiryWindow - Default expiry window.
// ExpiryWindow will allow the credentials to trigger refreshing
// prior to the credentials actually expiring. This is beneficial
// so race conditions with expiring credentials do not cause
// request to fail unexpectedly due to ExpiredTokenException exceptions.
// DefaultExpiryWindow can be used as parameter to (*Expiry).SetExpiration.
// When used the tokens refresh will be triggered when 80% of the elapsed
// time until the actual expiration time is passed.
const DefaultExpiryWindow = -1
// A IAM retrieves credentials from the EC2 service, and keeps track if
// those credentials are expired.
type IAM struct {
Expiry
// Optional http Client to use when connecting to IAM metadata service
// (overrides default client in CredContext)
Client *http.Client
// Custom endpoint to fetch IAM role credentials.
Endpoint string
// Region configurable custom region for STS
Region string
// Support for container authorization token https://docs.aws.amazon.com/sdkref/latest/guide/feature-container-credentials.html
Container struct {
AuthorizationToken string
AuthorizationTokenFile string
CredentialsFullURI string
CredentialsRelativeURI string
}
// EKS based k8s RBAC authorization - https://docs.aws.amazon.com/eks/latest/userguide/pod-configuration.html
EKSIdentity struct {
TokenFile string
RoleARN string
RoleSessionName string
}
}
// IAM Roles for Amazon EC2
// http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html
const (
DefaultIAMRoleEndpoint = "http://169.254.169.254"
DefaultECSRoleEndpoint = "http://169.254.170.2"
DefaultSTSRoleEndpoint = "https://sts.amazonaws.com"
DefaultIAMSecurityCredsPath = "/latest/meta-data/iam/security-credentials/"
TokenRequestTTLHeader = "X-aws-ec2-metadata-token-ttl-seconds"
TokenPath = "/latest/api/token"
TokenTTL = "21600"
TokenRequestHeader = "X-aws-ec2-metadata-token"
)
// NewIAM returns a pointer to a new Credentials object wrapping the IAM.
func NewIAM(endpoint string) *Credentials {
return New(&IAM{
Endpoint: endpoint,
})
}
// RetrieveWithCredContext is like Retrieve with Cred Context
func (m *IAM) RetrieveWithCredContext(cc *CredContext) (Value, error) {
if cc == nil {
cc = defaultCredContext
}
token := os.Getenv("AWS_CONTAINER_AUTHORIZATION_TOKEN")
if token == "" {
token = m.Container.AuthorizationToken
}
tokenFile := os.Getenv("AWS_CONTAINER_AUTHORIZATION_TOKEN_FILE")
if tokenFile == "" {
tokenFile = m.Container.AuthorizationToken
}
relativeURI := os.Getenv("AWS_CONTAINER_CREDENTIALS_RELATIVE_URI")
if relativeURI == "" {
relativeURI = m.Container.CredentialsRelativeURI
}
fullURI := os.Getenv("AWS_CONTAINER_CREDENTIALS_FULL_URI")
if fullURI == "" {
fullURI = m.Container.CredentialsFullURI
}
identityFile := os.Getenv("AWS_WEB_IDENTITY_TOKEN_FILE")
if identityFile == "" {
identityFile = m.EKSIdentity.TokenFile
}
roleArn := os.Getenv("AWS_ROLE_ARN")
if roleArn == "" {
roleArn = m.EKSIdentity.RoleARN
}
roleSessionName := os.Getenv("AWS_ROLE_SESSION_NAME")
if roleSessionName == "" {
roleSessionName = m.EKSIdentity.RoleSessionName
}
region := os.Getenv("AWS_REGION")
if region == "" {
region = m.Region
}
var roleCreds ec2RoleCredRespBody
var err error
client := m.Client
if client == nil {
client = cc.Client
}
if client == nil {
client = defaultCredContext.Client
}
endpoint := m.Endpoint
switch {
case identityFile != "":
if len(endpoint) == 0 {
if region != "" {
if strings.HasPrefix(region, "cn-") {
endpoint = "https://sts." + region + ".amazonaws.com.cn"
} else {
endpoint = "https://sts." + region + ".amazonaws.com"
}
} else {
endpoint = DefaultSTSRoleEndpoint
}
}
creds := &STSWebIdentity{
Client: client,
STSEndpoint: endpoint,
GetWebIDTokenExpiry: func() (*WebIdentityToken, error) {
token, err := os.ReadFile(identityFile)
if err != nil {
return nil, err
}
return &WebIdentityToken{Token: string(token)}, nil
},
RoleARN: roleArn,
roleSessionName: roleSessionName,
}
stsWebIdentityCreds, err := creds.RetrieveWithCredContext(cc)
if err == nil {
m.SetExpiration(creds.Expiration(), DefaultExpiryWindow)
}
return stsWebIdentityCreds, err
case relativeURI != "":
if len(endpoint) == 0 {
endpoint = fmt.Sprintf("%s%s", DefaultECSRoleEndpoint, relativeURI)
}
roleCreds, err = getEcsTaskCredentials(client, endpoint, token)
case tokenFile != "" && fullURI != "":
endpoint = fullURI
roleCreds, err = getEKSPodIdentityCredentials(client, endpoint, tokenFile)
case fullURI != "":
if len(endpoint) == 0 {
endpoint = fullURI
var ok bool
if ok, err = isLoopback(endpoint); !ok {
if err == nil {
err = fmt.Errorf("uri host is not a loopback address: %s", endpoint)
}
break
}
}
roleCreds, err = getEcsTaskCredentials(client, endpoint, token)
default:
roleCreds, err = getCredentials(client, endpoint)
}
if err != nil {
return Value{}, err
}
// Expiry window is set to 10secs.
m.SetExpiration(roleCreds.Expiration, DefaultExpiryWindow)
return Value{
AccessKeyID: roleCreds.AccessKeyID,
SecretAccessKey: roleCreds.SecretAccessKey,
SessionToken: roleCreds.Token,
Expiration: roleCreds.Expiration,
SignerType: SignatureV4,
}, nil
}
// Retrieve retrieves credentials from the EC2 service.
// Error will be returned if the request fails, or unable to extract
// the desired
func (m *IAM) Retrieve() (Value, error) {
return m.RetrieveWithCredContext(nil)
}
// A ec2RoleCredRespBody provides the shape for unmarshaling credential
// request responses.
type ec2RoleCredRespBody struct {
// Success State
Expiration time.Time
AccessKeyID string
SecretAccessKey string
Token string
// Error state
Code string
Message string
// Unused params.
LastUpdated time.Time
Type string
}
// Get the final IAM role URL where the request will
// be sent to fetch the rolling access credentials.
// http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html
func getIAMRoleURL(endpoint string) (*url.URL, error) {
u, err := url.Parse(endpoint)
if err != nil {
return nil, err
}
u.Path = DefaultIAMSecurityCredsPath
return u, nil
}
// listRoleNames lists of credential role names associated
// with the current EC2 service. If there are no credentials,
// or there is an error making or receiving the request.
// http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html
func listRoleNames(client *http.Client, u *url.URL, token string) ([]string, error) {
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
if err != nil {
return nil, err
}
if token != "" {
req.Header.Add(TokenRequestHeader, token)
}
resp, err := client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, errors.New(resp.Status)
}
credsList := []string{}
s := bufio.NewScanner(resp.Body)
for s.Scan() {
credsList = append(credsList, s.Text())
}
if err := s.Err(); err != nil {
return nil, err
}
return credsList, nil
}
func getEcsTaskCredentials(client *http.Client, endpoint, token string) (ec2RoleCredRespBody, error) {
req, err := http.NewRequest(http.MethodGet, endpoint, nil)
if err != nil {
return ec2RoleCredRespBody{}, err
}
if token != "" {
req.Header.Set("Authorization", token)
}
resp, err := client.Do(req)
if err != nil {
return ec2RoleCredRespBody{}, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return ec2RoleCredRespBody{}, errors.New(resp.Status)
}
respCreds := ec2RoleCredRespBody{}
if err := json.NewDecoder(resp.Body).Decode(&respCreds); err != nil {
return ec2RoleCredRespBody{}, err
}
return respCreds, nil
}
func getEKSPodIdentityCredentials(client *http.Client, endpoint string, tokenFile string) (ec2RoleCredRespBody, error) {
if tokenFile != "" {
bytes, err := os.ReadFile(tokenFile)
if err != nil {
return ec2RoleCredRespBody{}, fmt.Errorf("getEKSPodIdentityCredentials: failed to read token file:%s", err)
}
token := string(bytes)
return getEcsTaskCredentials(client, endpoint, token)
}
return ec2RoleCredRespBody{}, fmt.Errorf("getEKSPodIdentityCredentials: no tokenFile found")
}
func fetchIMDSToken(client *http.Client, endpoint string) (string, error) {
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
req, err := http.NewRequestWithContext(ctx, http.MethodPut, endpoint+TokenPath, nil)
if err != nil {
return "", err
}
req.Header.Add(TokenRequestTTLHeader, TokenTTL)
resp, err := client.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
data, err := io.ReadAll(resp.Body)
if err != nil {
return "", err
}
if resp.StatusCode != http.StatusOK {
return "", errors.New(resp.Status)
}
return string(data), nil
}
// getCredentials - obtains the credentials from the IAM role name associated with
// the current EC2 service.
//
// If the credentials cannot be found, or there is an error
// reading the response an error will be returned.
func getCredentials(client *http.Client, endpoint string) (ec2RoleCredRespBody, error) {
if endpoint == "" {
endpoint = DefaultIAMRoleEndpoint
}
// https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/configuring-instance-metadata-service.html
token, err := fetchIMDSToken(client, endpoint)
if err != nil {
// Return only errors for valid situations, if the IMDSv2 is not enabled
// we will not be able to get the token, in such a situation we have
// to rely on IMDSv1 behavior as a fallback, this check ensures that.
// Refer https://github.com/minio/minio-go/issues/1866
if !errors.Is(err, context.DeadlineExceeded) && !errors.Is(err, context.Canceled) {
return ec2RoleCredRespBody{}, err
}
}
// http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html
u, err := getIAMRoleURL(endpoint)
if err != nil {
return ec2RoleCredRespBody{}, err
}
// http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html
roleNames, err := listRoleNames(client, u, token)
if err != nil {
return ec2RoleCredRespBody{}, err
}
if len(roleNames) == 0 {
return ec2RoleCredRespBody{}, errors.New("No IAM roles attached to this EC2 service")
}
// http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html
// - An instance profile can contain only one IAM role. This limit cannot be increased.
roleName := roleNames[0]
// http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html
// The following command retrieves the security credentials for an
// IAM role named `s3access`.
//
// $ curl http://169.254.169.254/latest/meta-data/iam/security-credentials/s3access
//
u.Path = path.Join(u.Path, roleName)
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
if err != nil {
return ec2RoleCredRespBody{}, err
}
if token != "" {
req.Header.Add(TokenRequestHeader, token)
}
resp, err := client.Do(req)
if err != nil {
return ec2RoleCredRespBody{}, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return ec2RoleCredRespBody{}, errors.New(resp.Status)
}
respCreds := ec2RoleCredRespBody{}
if err := json.NewDecoder(resp.Body).Decode(&respCreds); err != nil {
return ec2RoleCredRespBody{}, err
}
if respCreds.Code != "Success" {
// If an error code was returned something failed requesting the role.
return ec2RoleCredRespBody{}, errors.New(respCreds.Message)
}
return respCreds, nil
}
// isLoopback identifies if a uri's host is on a loopback address
func isLoopback(uri string) (bool, error) {
u, err := url.Parse(uri)
if err != nil {
return false, err
}
host := u.Hostname()
if len(host) == 0 {
return false, fmt.Errorf("can't parse host from uri: %s", uri)
}
ips, err := net.LookupHost(host)
if err != nil {
return false, err
}
for _, ip := range ips {
if !net.ParseIP(ip).IsLoopback() {
return false, nil
}
}
return true, nil
}
@@ -0,0 +1,77 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import "strings"
// SignatureType is type of Authorization requested for a given HTTP request.
type SignatureType int
// Different types of supported signatures - default is SignatureV4 or SignatureDefault.
const (
// SignatureDefault is always set to v4.
SignatureDefault SignatureType = iota
SignatureV4
SignatureV2
SignatureV4Streaming
SignatureAnonymous // Anonymous signature signifies, no signature.
)
// IsV2 - is signature SignatureV2?
func (s SignatureType) IsV2() bool {
return s == SignatureV2
}
// IsV4 - is signature SignatureV4?
func (s SignatureType) IsV4() bool {
return s == SignatureV4 || s == SignatureDefault
}
// IsStreamingV4 - is signature SignatureV4Streaming?
func (s SignatureType) IsStreamingV4() bool {
return s == SignatureV4Streaming
}
// IsAnonymous - is signature empty?
func (s SignatureType) IsAnonymous() bool {
return s == SignatureAnonymous
}
// Stringer humanized version of signature type,
// strings returned here are case insensitive.
func (s SignatureType) String() string {
if s.IsV2() {
return "S3v2"
} else if s.IsV4() {
return "S3v4"
} else if s.IsStreamingV4() {
return "S3v4Streaming"
}
return "Anonymous"
}
func parseSignatureType(str string) SignatureType {
if strings.EqualFold(str, "S3v4") {
return SignatureV4
} else if strings.EqualFold(str, "S3v2") {
return SignatureV2
} else if strings.EqualFold(str, "S3v4Streaming") {
return SignatureV4Streaming
}
return SignatureAnonymous
}
+72
View File
@@ -0,0 +1,72 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
// A Static is a set of credentials which are set programmatically,
// and will never expire.
type Static struct {
Value
}
// NewStaticV2 returns a pointer to a new Credentials object
// wrapping a static credentials value provider, signature is
// set to v2. If access and secret are not specified then
// regardless of signature type set it Value will return
// as anonymous.
func NewStaticV2(id, secret, token string) *Credentials {
return NewStatic(id, secret, token, SignatureV2)
}
// NewStaticV4 is similar to NewStaticV2 with similar considerations.
func NewStaticV4(id, secret, token string) *Credentials {
return NewStatic(id, secret, token, SignatureV4)
}
// NewStatic returns a pointer to a new Credentials object
// wrapping a static credentials value provider.
func NewStatic(id, secret, token string, signerType SignatureType) *Credentials {
return New(&Static{
Value: Value{
AccessKeyID: id,
SecretAccessKey: secret,
SessionToken: token,
SignerType: signerType,
},
})
}
// Retrieve returns the static credentials.
func (s *Static) Retrieve() (Value, error) {
if s.AccessKeyID == "" || s.SecretAccessKey == "" {
// Anonymous is not an error
return Value{SignerType: SignatureAnonymous}, nil
}
return s.Value, nil
}
// RetrieveWithCredContext returns the static credentials.
func (s *Static) RetrieveWithCredContext(_ *CredContext) (Value, error) {
return s.Retrieve()
}
// IsExpired returns if the credentials are expired.
//
// For Static, the credentials never expired.
func (s *Static) IsExpired() bool {
return false
}
@@ -0,0 +1,203 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2019-2022 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"bytes"
"encoding/xml"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"strings"
"time"
)
// AssumedRoleUser - The identifiers for the temporary security credentials that
// the operation returns. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumedRoleUser
type AssumedRoleUser struct {
Arn string
AssumedRoleID string `xml:"AssumeRoleId"`
}
// AssumeRoleWithClientGrantsResponse contains the result of successful AssumeRoleWithClientGrants request.
type AssumeRoleWithClientGrantsResponse struct {
XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ AssumeRoleWithClientGrantsResponse" json:"-"`
Result ClientGrantsResult `xml:"AssumeRoleWithClientGrantsResult"`
ResponseMetadata struct {
RequestID string `xml:"RequestId,omitempty"`
} `xml:"ResponseMetadata,omitempty"`
}
// ClientGrantsResult - Contains the response to a successful AssumeRoleWithClientGrants
// request, including temporary credentials that can be used to make MinIO API requests.
type ClientGrantsResult struct {
AssumedRoleUser AssumedRoleUser `xml:",omitempty"`
Audience string `xml:",omitempty"`
Credentials struct {
AccessKey string `xml:"AccessKeyId" json:"accessKey,omitempty"`
SecretKey string `xml:"SecretAccessKey" json:"secretKey,omitempty"`
Expiration time.Time `xml:"Expiration" json:"expiration,omitempty"`
SessionToken string `xml:"SessionToken" json:"sessionToken,omitempty"`
} `xml:",omitempty"`
PackedPolicySize int `xml:",omitempty"`
Provider string `xml:",omitempty"`
SubjectFromClientGrantsToken string `xml:",omitempty"`
}
// ClientGrantsToken - client grants token with expiry.
type ClientGrantsToken struct {
Token string
Expiry int
}
// A STSClientGrants retrieves credentials from MinIO service, and keeps track if
// those credentials are expired.
type STSClientGrants struct {
Expiry
// Optional http Client to use when connecting to MinIO STS service.
// (overrides default client in CredContext)
Client *http.Client
// MinIO endpoint to fetch STS credentials.
STSEndpoint string
// getClientGrantsTokenExpiry function to retrieve tokens
// from IDP This function should return two values one is
// accessToken which is a self contained access token (JWT)
// and second return value is the expiry associated with
// this token. This is a customer provided function and
// is mandatory.
GetClientGrantsTokenExpiry func() (*ClientGrantsToken, error)
}
// NewSTSClientGrants returns a pointer to a new
// Credentials object wrapping the STSClientGrants.
func NewSTSClientGrants(stsEndpoint string, getClientGrantsTokenExpiry func() (*ClientGrantsToken, error)) (*Credentials, error) {
if getClientGrantsTokenExpiry == nil {
return nil, errors.New("Client grants access token and expiry retrieval function should be defined")
}
return New(&STSClientGrants{
STSEndpoint: stsEndpoint,
GetClientGrantsTokenExpiry: getClientGrantsTokenExpiry,
}), nil
}
func getClientGrantsCredentials(clnt *http.Client, endpoint string,
getClientGrantsTokenExpiry func() (*ClientGrantsToken, error),
) (AssumeRoleWithClientGrantsResponse, error) {
accessToken, err := getClientGrantsTokenExpiry()
if err != nil {
return AssumeRoleWithClientGrantsResponse{}, err
}
v := url.Values{}
v.Set("Action", "AssumeRoleWithClientGrants")
v.Set("Token", accessToken.Token)
v.Set("DurationSeconds", fmt.Sprintf("%d", accessToken.Expiry))
v.Set("Version", STSVersion)
u, err := url.Parse(endpoint)
if err != nil {
return AssumeRoleWithClientGrantsResponse{}, err
}
req, err := http.NewRequest(http.MethodPost, u.String(), strings.NewReader(v.Encode()))
if err != nil {
return AssumeRoleWithClientGrantsResponse{}, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
resp, err := clnt.Do(req)
if err != nil {
return AssumeRoleWithClientGrantsResponse{}, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
var errResp ErrorResponse
buf, err := io.ReadAll(resp.Body)
if err != nil {
return AssumeRoleWithClientGrantsResponse{}, err
}
_, err = xmlDecodeAndBody(bytes.NewReader(buf), &errResp)
if err != nil {
var s3Err Error
if _, err = xmlDecodeAndBody(bytes.NewReader(buf), &s3Err); err != nil {
return AssumeRoleWithClientGrantsResponse{}, err
}
errResp.RequestID = s3Err.RequestID
errResp.STSError.Code = s3Err.Code
errResp.STSError.Message = s3Err.Message
}
return AssumeRoleWithClientGrantsResponse{}, errResp
}
a := AssumeRoleWithClientGrantsResponse{}
if err = xml.NewDecoder(resp.Body).Decode(&a); err != nil {
return AssumeRoleWithClientGrantsResponse{}, err
}
return a, nil
}
// RetrieveWithCredContext is like Retrieve() with cred context
func (m *STSClientGrants) RetrieveWithCredContext(cc *CredContext) (Value, error) {
if cc == nil {
cc = defaultCredContext
}
client := m.Client
if client == nil {
client = cc.Client
}
if client == nil {
client = defaultCredContext.Client
}
stsEndpoint := m.STSEndpoint
if stsEndpoint == "" {
stsEndpoint = cc.Endpoint
}
if stsEndpoint == "" {
return Value{}, errors.New("STS endpoint unknown")
}
a, err := getClientGrantsCredentials(client, stsEndpoint, m.GetClientGrantsTokenExpiry)
if err != nil {
return Value{}, err
}
// Expiry window is set to 10secs.
m.SetExpiration(a.Result.Credentials.Expiration, DefaultExpiryWindow)
return Value{
AccessKeyID: a.Result.Credentials.AccessKey,
SecretAccessKey: a.Result.Credentials.SecretKey,
SessionToken: a.Result.Credentials.SessionToken,
Expiration: a.Result.Credentials.Expiration,
SignerType: SignatureV4,
}, nil
}
// Retrieve retrieves credentials from the MinIO service.
// Error will be returned if the request fails.
func (m *STSClientGrants) Retrieve() (Value, error) {
return m.RetrieveWithCredContext(nil)
}
@@ -0,0 +1,179 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2022 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"encoding/xml"
"errors"
"fmt"
"net/http"
"net/url"
"time"
)
// CustomTokenResult - Contains temporary creds and user metadata.
type CustomTokenResult struct {
Credentials struct {
AccessKey string `xml:"AccessKeyId"`
SecretKey string `xml:"SecretAccessKey"`
Expiration time.Time `xml:"Expiration"`
SessionToken string `xml:"SessionToken"`
} `xml:",omitempty"`
AssumedUser string `xml:",omitempty"`
}
// AssumeRoleWithCustomTokenResponse contains the result of a successful
// AssumeRoleWithCustomToken request.
type AssumeRoleWithCustomTokenResponse struct {
XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ AssumeRoleWithCustomTokenResponse" json:"-"`
Result CustomTokenResult `xml:"AssumeRoleWithCustomTokenResult"`
Metadata struct {
RequestID string `xml:"RequestId,omitempty"`
} `xml:"ResponseMetadata,omitempty"`
}
// CustomTokenIdentity - satisfies the Provider interface, and retrieves
// credentials from MinIO using the AssumeRoleWithCustomToken STS API.
type CustomTokenIdentity struct {
Expiry
// Optional http Client to use when connecting to MinIO STS service.
// (overrides default client in CredContext)
Client *http.Client
// MinIO server STS endpoint to fetch STS credentials.
STSEndpoint string
// The custom token to use with the request.
Token string
// RoleArn associated with the identity
RoleArn string
// RequestedExpiry is to set the validity of the generated credentials
// (this value bounded by server).
RequestedExpiry time.Duration
// Optional, used for token revokation
TokenRevokeType string
}
// RetrieveWithCredContext with Retrieve optionally cred context
func (c *CustomTokenIdentity) RetrieveWithCredContext(cc *CredContext) (value Value, err error) {
if cc == nil {
cc = defaultCredContext
}
stsEndpoint := c.STSEndpoint
if stsEndpoint == "" {
stsEndpoint = cc.Endpoint
}
if stsEndpoint == "" {
return Value{}, errors.New("STS endpoint unknown")
}
u, err := url.Parse(stsEndpoint)
if err != nil {
return value, err
}
v := url.Values{}
v.Set("Action", "AssumeRoleWithCustomToken")
v.Set("Version", STSVersion)
v.Set("RoleArn", c.RoleArn)
v.Set("Token", c.Token)
if c.RequestedExpiry != 0 {
v.Set("DurationSeconds", fmt.Sprintf("%d", int(c.RequestedExpiry.Seconds())))
}
if c.TokenRevokeType != "" {
v.Set("TokenRevokeType", c.TokenRevokeType)
}
u.RawQuery = v.Encode()
req, err := http.NewRequest(http.MethodPost, u.String(), nil)
if err != nil {
return value, err
}
client := c.Client
if client == nil {
client = cc.Client
}
if client == nil {
client = defaultCredContext.Client
}
resp, err := client.Do(req)
if err != nil {
return value, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return value, errors.New(resp.Status)
}
r := AssumeRoleWithCustomTokenResponse{}
if err = xml.NewDecoder(resp.Body).Decode(&r); err != nil {
return value, err
}
cr := r.Result.Credentials
c.SetExpiration(cr.Expiration, DefaultExpiryWindow)
return Value{
AccessKeyID: cr.AccessKey,
SecretAccessKey: cr.SecretKey,
SessionToken: cr.SessionToken,
Expiration: cr.Expiration,
SignerType: SignatureV4,
}, nil
}
// Retrieve - to satisfy Provider interface; fetches credentials from MinIO.
func (c *CustomTokenIdentity) Retrieve() (value Value, err error) {
return c.RetrieveWithCredContext(nil)
}
// NewCustomTokenCredentials - returns credentials using the
// AssumeRoleWithCustomToken STS API.
func NewCustomTokenCredentials(stsEndpoint, token, roleArn string, optFuncs ...CustomTokenOpt) (*Credentials, error) {
c := CustomTokenIdentity{
STSEndpoint: stsEndpoint,
Token: token,
RoleArn: roleArn,
}
for _, optFunc := range optFuncs {
optFunc(&c)
}
return New(&c), nil
}
// CustomTokenOpt is a function type to configure the custom-token based
// credentials using NewCustomTokenCredentials.
type CustomTokenOpt func(*CustomTokenIdentity)
// CustomTokenValidityOpt sets the validity duration of the requested
// credentials. This value is ignored if the server enforces a lower validity
// period.
func CustomTokenValidityOpt(d time.Duration) CustomTokenOpt {
return func(c *CustomTokenIdentity) {
c.RequestedExpiry = d
}
}
@@ -0,0 +1,235 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2019-2022 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"bytes"
"encoding/xml"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"strings"
"time"
)
// AssumeRoleWithLDAPResponse contains the result of successful
// AssumeRoleWithLDAPIdentity request
type AssumeRoleWithLDAPResponse struct {
XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ AssumeRoleWithLDAPIdentityResponse" json:"-"`
Result LDAPIdentityResult `xml:"AssumeRoleWithLDAPIdentityResult"`
ResponseMetadata struct {
RequestID string `xml:"RequestId,omitempty"`
} `xml:"ResponseMetadata,omitempty"`
}
// LDAPIdentityResult - contains credentials for a successful
// AssumeRoleWithLDAPIdentity request.
type LDAPIdentityResult struct {
Credentials struct {
AccessKey string `xml:"AccessKeyId" json:"accessKey,omitempty"`
SecretKey string `xml:"SecretAccessKey" json:"secretKey,omitempty"`
Expiration time.Time `xml:"Expiration" json:"expiration,omitempty"`
SessionToken string `xml:"SessionToken" json:"sessionToken,omitempty"`
} `xml:",omitempty"`
SubjectFromToken string `xml:",omitempty"`
}
// LDAPIdentity retrieves credentials from MinIO
type LDAPIdentity struct {
Expiry
// Optional http Client to use when connecting to MinIO STS service.
// (overrides default client in CredContext)
Client *http.Client
// Exported STS endpoint to fetch STS credentials.
STSEndpoint string
// LDAP username/password used to fetch LDAP STS credentials.
LDAPUsername, LDAPPassword string
// Session policy to apply to the generated credentials. Leave empty to
// use the full access policy available to the user.
Policy string
// RequestedExpiry is the configured expiry duration for credentials
// requested from LDAP.
RequestedExpiry time.Duration
// Optional, if empty applies to default config
ConfigName string
// Optional, used for token revokation
TokenRevokeType string
}
// NewLDAPIdentity returns new credentials object that uses LDAP
// Identity.
func NewLDAPIdentity(stsEndpoint, ldapUsername, ldapPassword string, optFuncs ...LDAPIdentityOpt) (*Credentials, error) {
l := LDAPIdentity{
STSEndpoint: stsEndpoint,
LDAPUsername: ldapUsername,
LDAPPassword: ldapPassword,
}
for _, optFunc := range optFuncs {
optFunc(&l)
}
return New(&l), nil
}
// LDAPIdentityOpt is a function type used to configured the LDAPIdentity
// instance.
type LDAPIdentityOpt func(*LDAPIdentity)
// LDAPIdentityPolicyOpt sets the session policy for requested credentials.
func LDAPIdentityPolicyOpt(policy string) LDAPIdentityOpt {
return func(k *LDAPIdentity) {
k.Policy = policy
}
}
// LDAPIdentityExpiryOpt sets the expiry duration for requested credentials.
func LDAPIdentityExpiryOpt(d time.Duration) LDAPIdentityOpt {
return func(k *LDAPIdentity) {
k.RequestedExpiry = d
}
}
// LDAPIdentityConfigNameOpt sets the config name for requested credentials.
func LDAPIdentityConfigNameOpt(name string) LDAPIdentityOpt {
return func(k *LDAPIdentity) {
k.ConfigName = name
}
}
// NewLDAPIdentityWithSessionPolicy returns new credentials object that uses
// LDAP Identity with a specified session policy. The `policy` parameter must be
// a JSON string specifying the policy document.
//
// Deprecated: Use the `LDAPIdentityPolicyOpt` with `NewLDAPIdentity` instead.
func NewLDAPIdentityWithSessionPolicy(stsEndpoint, ldapUsername, ldapPassword, policy string) (*Credentials, error) {
return New(&LDAPIdentity{
STSEndpoint: stsEndpoint,
LDAPUsername: ldapUsername,
LDAPPassword: ldapPassword,
Policy: policy,
}), nil
}
// RetrieveWithCredContext gets the credential by calling the MinIO STS API for
// LDAP on the configured stsEndpoint.
func (k *LDAPIdentity) RetrieveWithCredContext(cc *CredContext) (value Value, err error) {
if cc == nil {
cc = defaultCredContext
}
stsEndpoint := k.STSEndpoint
if stsEndpoint == "" {
stsEndpoint = cc.Endpoint
}
if stsEndpoint == "" {
return Value{}, errors.New("STS endpoint unknown")
}
u, err := url.Parse(stsEndpoint)
if err != nil {
return value, err
}
v := url.Values{}
v.Set("Action", "AssumeRoleWithLDAPIdentity")
v.Set("Version", STSVersion)
v.Set("LDAPUsername", k.LDAPUsername)
v.Set("LDAPPassword", k.LDAPPassword)
if k.Policy != "" {
v.Set("Policy", k.Policy)
}
if k.RequestedExpiry != 0 {
v.Set("DurationSeconds", fmt.Sprintf("%d", int(k.RequestedExpiry.Seconds())))
}
if k.TokenRevokeType != "" {
v.Set("TokenRevokeType", k.TokenRevokeType)
}
if k.ConfigName != "" {
v.Set("ConfigName", k.ConfigName)
}
req, err := http.NewRequest(http.MethodPost, u.String(), strings.NewReader(v.Encode()))
if err != nil {
return value, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
client := k.Client
if client == nil {
client = cc.Client
}
if client == nil {
client = defaultCredContext.Client
}
resp, err := client.Do(req)
if err != nil {
return value, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
var errResp ErrorResponse
buf, err := io.ReadAll(resp.Body)
if err != nil {
return value, err
}
_, err = xmlDecodeAndBody(bytes.NewReader(buf), &errResp)
if err != nil {
var s3Err Error
if _, err = xmlDecodeAndBody(bytes.NewReader(buf), &s3Err); err != nil {
return value, err
}
errResp.RequestID = s3Err.RequestID
errResp.STSError.Code = s3Err.Code
errResp.STSError.Message = s3Err.Message
}
return value, errResp
}
r := AssumeRoleWithLDAPResponse{}
if err = xml.NewDecoder(resp.Body).Decode(&r); err != nil {
return value, err
}
cr := r.Result.Credentials
k.SetExpiration(cr.Expiration, DefaultExpiryWindow)
return Value{
AccessKeyID: cr.AccessKey,
SecretAccessKey: cr.SecretKey,
SessionToken: cr.SessionToken,
Expiration: cr.Expiration,
SignerType: SignatureV4,
}, nil
}
// Retrieve gets the credential by calling the MinIO STS API for
// LDAP on the configured stsEndpoint.
func (k *LDAPIdentity) Retrieve() (value Value, err error) {
return k.RetrieveWithCredContext(defaultCredContext)
}
@@ -0,0 +1,229 @@
// MinIO Go Library for Amazon S3 Compatible Cloud Storage
// Copyright 2021 MinIO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package credentials
import (
"bytes"
"crypto/tls"
"encoding/xml"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"strconv"
"time"
)
// CertificateIdentityOption is an optional AssumeRoleWithCertificate
// parameter - e.g. a custom HTTP transport configuration or S3 credental
// livetime.
type CertificateIdentityOption func(*STSCertificateIdentity)
// CertificateIdentityWithTransport returns a CertificateIdentityOption that
// customizes the STSCertificateIdentity with the given http.RoundTripper.
func CertificateIdentityWithTransport(t http.RoundTripper) CertificateIdentityOption {
return CertificateIdentityOption(func(i *STSCertificateIdentity) {
if i.Client == nil {
i.Client = &http.Client{}
}
i.Client.Transport = t
})
}
// CertificateIdentityWithExpiry returns a CertificateIdentityOption that
// customizes the STSCertificateIdentity with the given livetime.
//
// Fetched S3 credentials will have the given livetime if the STS server
// allows such credentials.
func CertificateIdentityWithExpiry(livetime time.Duration) CertificateIdentityOption {
return CertificateIdentityOption(func(i *STSCertificateIdentity) { i.S3CredentialLivetime = livetime })
}
// A STSCertificateIdentity retrieves S3 credentials from the MinIO STS API and
// rotates those credentials once they expire.
type STSCertificateIdentity struct {
Expiry
// Optional http Client to use when connecting to MinIO STS service.
// (overrides default client in CredContext)
Client *http.Client
// STSEndpoint is the base URL endpoint of the STS API.
// For example, https://minio.local:9000
STSEndpoint string
// S3CredentialLivetime is the duration temp. S3 access
// credentials should be valid.
//
// It represents the access credential livetime requested
// by the client. The STS server may choose to issue
// temp. S3 credentials that have a different - usually
// shorter - livetime.
//
// The default livetime is one hour.
S3CredentialLivetime time.Duration
// Certificate is the client certificate that is used for
// STS authentication.
Certificate tls.Certificate
// Optional, used for token revokation
TokenRevokeType string
}
// NewSTSCertificateIdentity returns a STSCertificateIdentity that authenticates
// to the given STS endpoint with the given TLS certificate and retrieves and
// rotates S3 credentials.
func NewSTSCertificateIdentity(endpoint string, certificate tls.Certificate, options ...CertificateIdentityOption) (*Credentials, error) {
identity := &STSCertificateIdentity{
STSEndpoint: endpoint,
Certificate: certificate,
}
for _, option := range options {
option(identity)
}
return New(identity), nil
}
// RetrieveWithCredContext is Retrieve with cred context
func (i *STSCertificateIdentity) RetrieveWithCredContext(cc *CredContext) (Value, error) {
if cc == nil {
cc = defaultCredContext
}
stsEndpoint := i.STSEndpoint
if stsEndpoint == "" {
stsEndpoint = cc.Endpoint
}
if stsEndpoint == "" {
return Value{}, errors.New("STS endpoint unknown")
}
endpointURL, err := url.Parse(stsEndpoint)
if err != nil {
return Value{}, err
}
livetime := i.S3CredentialLivetime
if livetime == 0 {
livetime = 1 * time.Hour
}
queryValues := url.Values{}
queryValues.Set("Action", "AssumeRoleWithCertificate")
queryValues.Set("Version", STSVersion)
queryValues.Set("DurationSeconds", strconv.FormatUint(uint64(livetime.Seconds()), 10))
if i.TokenRevokeType != "" {
queryValues.Set("TokenRevokeType", i.TokenRevokeType)
}
endpointURL.RawQuery = queryValues.Encode()
req, err := http.NewRequest(http.MethodPost, endpointURL.String(), nil)
if err != nil {
return Value{}, err
}
client := i.Client
if client == nil {
client = cc.Client
}
if client == nil {
client = defaultCredContext.Client
}
tr, ok := client.Transport.(*http.Transport)
if !ok {
return Value{}, fmt.Errorf("CredContext should contain an http.Transport value")
}
// Clone the HTTP transport (patch the TLS client certificate)
trCopy := tr.Clone()
trCopy.TLSClientConfig.Certificates = []tls.Certificate{i.Certificate}
// Clone the HTTP client (patch the HTTP transport)
clientCopy := *client
clientCopy.Transport = trCopy
resp, err := clientCopy.Do(req)
if err != nil {
return Value{}, err
}
if resp.Body != nil {
defer resp.Body.Close()
}
if resp.StatusCode != http.StatusOK {
var errResp ErrorResponse
buf, err := io.ReadAll(resp.Body)
if err != nil {
return Value{}, err
}
_, err = xmlDecodeAndBody(bytes.NewReader(buf), &errResp)
if err != nil {
var s3Err Error
if _, err = xmlDecodeAndBody(bytes.NewReader(buf), &s3Err); err != nil {
return Value{}, err
}
errResp.RequestID = s3Err.RequestID
errResp.STSError.Code = s3Err.Code
errResp.STSError.Message = s3Err.Message
}
return Value{}, errResp
}
const MaxSize = 10 * 1 << 20
var body io.Reader = resp.Body
if resp.ContentLength > 0 && resp.ContentLength < MaxSize {
body = io.LimitReader(body, resp.ContentLength)
} else {
body = io.LimitReader(body, MaxSize)
}
var response assumeRoleWithCertificateResponse
if err = xml.NewDecoder(body).Decode(&response); err != nil {
return Value{}, err
}
i.SetExpiration(response.Result.Credentials.Expiration, DefaultExpiryWindow)
return Value{
AccessKeyID: response.Result.Credentials.AccessKey,
SecretAccessKey: response.Result.Credentials.SecretKey,
SessionToken: response.Result.Credentials.SessionToken,
Expiration: response.Result.Credentials.Expiration,
SignerType: SignatureDefault,
}, nil
}
// Retrieve fetches a new set of S3 credentials from the configured STS API endpoint.
func (i *STSCertificateIdentity) Retrieve() (Value, error) {
return i.RetrieveWithCredContext(defaultCredContext)
}
// Expiration returns the expiration time of the current S3 credentials.
func (i *STSCertificateIdentity) Expiration() time.Time { return i.expiration }
type assumeRoleWithCertificateResponse struct {
XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ AssumeRoleWithCertificateResponse" json:"-"`
Result struct {
Credentials struct {
AccessKey string `xml:"AccessKeyId" json:"accessKey,omitempty"`
SecretKey string `xml:"SecretAccessKey" json:"secretKey,omitempty"`
Expiration time.Time `xml:"Expiration" json:"expiration,omitempty"`
SessionToken string `xml:"SessionToken" json:"sessionToken,omitempty"`
} `xml:"Credentials" json:"credentials,omitempty"`
} `xml:"AssumeRoleWithCertificateResult"`
ResponseMetadata struct {
RequestID string `xml:"RequestId,omitempty"`
} `xml:"ResponseMetadata,omitempty"`
}
@@ -0,0 +1,271 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2019-2022 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"bytes"
"encoding/xml"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"os"
"strconv"
"strings"
"time"
)
// AssumeRoleWithWebIdentityResponse contains the result of successful AssumeRoleWithWebIdentity request.
type AssumeRoleWithWebIdentityResponse struct {
XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ AssumeRoleWithWebIdentityResponse" json:"-"`
Result WebIdentityResult `xml:"AssumeRoleWithWebIdentityResult"`
ResponseMetadata struct {
RequestID string `xml:"RequestId,omitempty"`
} `xml:"ResponseMetadata,omitempty"`
}
// WebIdentityResult - Contains the response to a successful AssumeRoleWithWebIdentity
// request, including temporary credentials that can be used to make MinIO API requests.
type WebIdentityResult struct {
AssumedRoleUser AssumedRoleUser `xml:",omitempty"`
Audience string `xml:",omitempty"`
Credentials struct {
AccessKey string `xml:"AccessKeyId" json:"accessKey,omitempty"`
SecretKey string `xml:"SecretAccessKey" json:"secretKey,omitempty"`
Expiration time.Time `xml:"Expiration" json:"expiration,omitempty"`
SessionToken string `xml:"SessionToken" json:"sessionToken,omitempty"`
} `xml:",omitempty"`
PackedPolicySize int `xml:",omitempty"`
Provider string `xml:",omitempty"`
SubjectFromWebIdentityToken string `xml:",omitempty"`
}
// WebIdentityToken - web identity token with expiry.
type WebIdentityToken struct {
Token string
AccessToken string
RefreshToken string
Expiry int
}
// A STSWebIdentity retrieves credentials from MinIO service, and keeps track if
// those credentials are expired.
type STSWebIdentity struct {
Expiry
// Optional http Client to use when connecting to MinIO STS service.
// (overrides default client in CredContext)
Client *http.Client
// Exported STS endpoint to fetch STS credentials.
STSEndpoint string
// Exported GetWebIDTokenExpiry function which returns ID
// tokens from IDP. This function should return two values
// one is ID token which is a self contained ID token (JWT)
// and second return value is the expiry associated with
// this token.
// This is a customer provided function and is mandatory.
GetWebIDTokenExpiry func() (*WebIdentityToken, error)
// RoleARN is the Amazon Resource Name (ARN) of the role that the caller is
// assuming.
RoleARN string
// Policy is the policy where the credentials should be limited too.
Policy string
// roleSessionName is the identifier for the assumed role session.
roleSessionName string
// Optional, used for token revokation
TokenRevokeType string
}
// NewSTSWebIdentity returns a pointer to a new
// Credentials object wrapping the STSWebIdentity.
func NewSTSWebIdentity(stsEndpoint string, getWebIDTokenExpiry func() (*WebIdentityToken, error), opts ...func(*STSWebIdentity)) (*Credentials, error) {
if getWebIDTokenExpiry == nil {
return nil, errors.New("Web ID token and expiry retrieval function should be defined")
}
i := &STSWebIdentity{
STSEndpoint: stsEndpoint,
GetWebIDTokenExpiry: getWebIDTokenExpiry,
}
for _, o := range opts {
o(i)
}
return New(i), nil
}
// NewKubernetesIdentity returns a pointer to a new
// Credentials object using the Kubernetes service account
func NewKubernetesIdentity(stsEndpoint string, opts ...func(*STSWebIdentity)) (*Credentials, error) {
return NewSTSWebIdentity(stsEndpoint, func() (*WebIdentityToken, error) {
token, err := os.ReadFile("/var/run/secrets/kubernetes.io/serviceaccount/token")
if err != nil {
return nil, err
}
return &WebIdentityToken{
Token: string(token),
}, nil
}, opts...)
}
// WithPolicy option will enforce that the returned credentials
// will be scoped down to the specified policy
func WithPolicy(policy string) func(*STSWebIdentity) {
return func(i *STSWebIdentity) {
i.Policy = policy
}
}
func getWebIdentityCredentials(clnt *http.Client, endpoint, roleARN, roleSessionName string, policy string,
getWebIDTokenExpiry func() (*WebIdentityToken, error), tokenRevokeType string,
) (AssumeRoleWithWebIdentityResponse, error) {
idToken, err := getWebIDTokenExpiry()
if err != nil {
return AssumeRoleWithWebIdentityResponse{}, err
}
v := url.Values{}
v.Set("Action", "AssumeRoleWithWebIdentity")
if len(roleARN) > 0 {
v.Set("RoleArn", roleARN)
if len(roleSessionName) == 0 {
roleSessionName = strconv.FormatInt(time.Now().UnixNano(), 10)
}
v.Set("RoleSessionName", roleSessionName)
}
v.Set("WebIdentityToken", idToken.Token)
if idToken.AccessToken != "" {
// Usually set when server is using extended userInfo endpoint.
v.Set("WebIdentityAccessToken", idToken.AccessToken)
}
if idToken.RefreshToken != "" {
// Usually set when server is using extended userInfo endpoint.
v.Set("WebIdentityRefreshToken", idToken.RefreshToken)
}
if idToken.Expiry > 0 {
v.Set("DurationSeconds", fmt.Sprintf("%d", idToken.Expiry))
}
if policy != "" {
v.Set("Policy", policy)
}
v.Set("Version", STSVersion)
if tokenRevokeType != "" {
v.Set("TokenRevokeType", tokenRevokeType)
}
u, err := url.Parse(endpoint)
if err != nil {
return AssumeRoleWithWebIdentityResponse{}, err
}
req, err := http.NewRequest(http.MethodPost, u.String(), strings.NewReader(v.Encode()))
if err != nil {
return AssumeRoleWithWebIdentityResponse{}, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
resp, err := clnt.Do(req)
if err != nil {
return AssumeRoleWithWebIdentityResponse{}, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
var errResp ErrorResponse
buf, err := io.ReadAll(resp.Body)
if err != nil {
return AssumeRoleWithWebIdentityResponse{}, err
}
_, err = xmlDecodeAndBody(bytes.NewReader(buf), &errResp)
if err != nil {
var s3Err Error
if _, err = xmlDecodeAndBody(bytes.NewReader(buf), &s3Err); err != nil {
return AssumeRoleWithWebIdentityResponse{}, err
}
errResp.RequestID = s3Err.RequestID
errResp.STSError.Code = s3Err.Code
errResp.STSError.Message = s3Err.Message
}
return AssumeRoleWithWebIdentityResponse{}, errResp
}
a := AssumeRoleWithWebIdentityResponse{}
if err = xml.NewDecoder(resp.Body).Decode(&a); err != nil {
return AssumeRoleWithWebIdentityResponse{}, err
}
return a, nil
}
// RetrieveWithCredContext is like Retrieve with optional cred context.
func (m *STSWebIdentity) RetrieveWithCredContext(cc *CredContext) (Value, error) {
if cc == nil {
cc = defaultCredContext
}
client := m.Client
if client == nil {
client = cc.Client
}
if client == nil {
client = defaultCredContext.Client
}
stsEndpoint := m.STSEndpoint
if stsEndpoint == "" {
stsEndpoint = cc.Endpoint
}
if stsEndpoint == "" {
return Value{}, errors.New("STS endpoint unknown")
}
a, err := getWebIdentityCredentials(client, stsEndpoint, m.RoleARN, m.roleSessionName, m.Policy, m.GetWebIDTokenExpiry, m.TokenRevokeType)
if err != nil {
return Value{}, err
}
// Expiry window is set to 10secs.
m.SetExpiration(a.Result.Credentials.Expiration, DefaultExpiryWindow)
return Value{
AccessKeyID: a.Result.Credentials.AccessKey,
SecretAccessKey: a.Result.Credentials.SecretKey,
SessionToken: a.Result.Credentials.SessionToken,
Expiration: a.Result.Credentials.Expiration,
SignerType: SignatureV4,
}, nil
}
// Retrieve retrieves credentials from the MinIO service.
// Error will be returned if the request fails.
func (m *STSWebIdentity) Retrieve() (Value, error) {
return m.RetrieveWithCredContext(nil)
}
// Expiration returns the expiration time of the credentials
func (m *STSWebIdentity) Expiration() time.Time {
return m.expiration
}
@@ -0,0 +1,23 @@
//go:build !fips
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2022 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package encrypt
// FIPS is true if 'fips' build tag was specified.
const FIPS = false
+23
View File
@@ -0,0 +1,23 @@
//go:build fips
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2022 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package encrypt
// FIPS is true if 'fips' build tag was specified.
const FIPS = true
+197
View File
@@ -0,0 +1,197 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2018 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package encrypt
import (
"crypto/md5"
"encoding/base64"
"encoding/json"
"errors"
"net/http"
"golang.org/x/crypto/argon2"
)
const (
// SseGenericHeader is the AWS SSE header used for SSE-S3 and SSE-KMS.
SseGenericHeader = "X-Amz-Server-Side-Encryption"
// SseKmsKeyID is the AWS SSE-KMS key id.
SseKmsKeyID = SseGenericHeader + "-Aws-Kms-Key-Id"
// SseEncryptionContext is the AWS SSE-KMS Encryption Context data.
SseEncryptionContext = SseGenericHeader + "-Context"
// SseCustomerAlgorithm is the AWS SSE-C algorithm HTTP header key.
SseCustomerAlgorithm = SseGenericHeader + "-Customer-Algorithm"
// SseCustomerKey is the AWS SSE-C encryption key HTTP header key.
SseCustomerKey = SseGenericHeader + "-Customer-Key"
// SseCustomerKeyMD5 is the AWS SSE-C encryption key MD5 HTTP header key.
SseCustomerKeyMD5 = SseGenericHeader + "-Customer-Key-MD5"
// SseCopyCustomerAlgorithm is the AWS SSE-C algorithm HTTP header key for CopyObject API.
SseCopyCustomerAlgorithm = "X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm"
// SseCopyCustomerKey is the AWS SSE-C encryption key HTTP header key for CopyObject API.
SseCopyCustomerKey = "X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key"
// SseCopyCustomerKeyMD5 is the AWS SSE-C encryption key MD5 HTTP header key for CopyObject API.
SseCopyCustomerKeyMD5 = "X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-MD5"
)
// PBKDF creates a SSE-C key from the provided password and salt.
// PBKDF is a password-based key derivation function
// which can be used to derive a high-entropy cryptographic
// key from a low-entropy password and a salt.
type PBKDF func(password, salt []byte) ServerSide
// DefaultPBKDF is the default PBKDF. It uses Argon2id with the
// recommended parameters from the RFC draft (1 pass, 64 MB memory, 4 threads).
var DefaultPBKDF PBKDF = func(password, salt []byte) ServerSide {
sse := ssec{}
copy(sse[:], argon2.IDKey(password, salt, 1, 64*1024, 4, 32))
return sse
}
// Type is the server-side-encryption method. It represents one of
// the following encryption methods:
// - SSE-C: server-side-encryption with customer provided keys
// - KMS: server-side-encryption with managed keys
// - S3: server-side-encryption using S3 storage encryption
type Type string
const (
// SSEC represents server-side-encryption with customer provided keys
SSEC Type = "SSE-C"
// KMS represents server-side-encryption with managed keys
KMS Type = "KMS"
// S3 represents server-side-encryption using S3 storage encryption
S3 Type = "S3"
)
// ServerSide is a form of S3 server-side-encryption.
type ServerSide interface {
// Type returns the server-side-encryption method.
Type() Type
// Marshal adds encryption headers to the provided HTTP headers.
// It marks an HTTP request as server-side-encryption request
// and inserts the required data into the headers.
Marshal(h http.Header)
}
// NewSSE returns a server-side-encryption using S3 storage encryption.
// Using SSE-S3 the server will encrypt the object with server-managed keys.
func NewSSE() ServerSide { return s3{} }
// NewSSEKMS returns a new server-side-encryption using SSE-KMS and the provided Key Id and context.
func NewSSEKMS(keyID string, context interface{}) (ServerSide, error) {
if context == nil {
return kms{key: keyID, hasContext: false}, nil
}
serializedContext, err := json.Marshal(context)
if err != nil {
return nil, err
}
return kms{key: keyID, context: serializedContext, hasContext: true}, nil
}
// NewSSEC returns a new server-side-encryption using SSE-C and the provided key.
// The key must be 32 bytes long.
func NewSSEC(key []byte) (ServerSide, error) {
if len(key) != 32 {
return nil, errors.New("encrypt: SSE-C key must be 256 bit long")
}
sse := ssec{}
copy(sse[:], key)
return sse, nil
}
// SSE transforms a SSE-C copy encryption into a SSE-C encryption.
// It is the inverse of SSECopy(...).
//
// If the provided sse is no SSE-C copy encryption SSE returns
// sse unmodified.
func SSE(sse ServerSide) ServerSide {
if sse == nil || sse.Type() != SSEC {
return sse
}
if sse, ok := sse.(ssecCopy); ok {
return ssec(sse)
}
return sse
}
// SSECopy transforms a SSE-C encryption into a SSE-C copy
// encryption. This is required for SSE-C key rotation or a SSE-C
// copy where the source and the destination should be encrypted.
//
// If the provided sse is no SSE-C encryption SSECopy returns
// sse unmodified.
func SSECopy(sse ServerSide) ServerSide {
if sse == nil || sse.Type() != SSEC {
return sse
}
if sse, ok := sse.(ssec); ok {
return ssecCopy(sse)
}
return sse
}
type ssec [32]byte
func (s ssec) Type() Type { return SSEC }
func (s ssec) Marshal(h http.Header) {
keyMD5 := md5.Sum(s[:])
h.Set(SseCustomerAlgorithm, "AES256")
h.Set(SseCustomerKey, base64.StdEncoding.EncodeToString(s[:]))
h.Set(SseCustomerKeyMD5, base64.StdEncoding.EncodeToString(keyMD5[:]))
}
type ssecCopy [32]byte
func (s ssecCopy) Type() Type { return SSEC }
func (s ssecCopy) Marshal(h http.Header) {
keyMD5 := md5.Sum(s[:])
h.Set(SseCopyCustomerAlgorithm, "AES256")
h.Set(SseCopyCustomerKey, base64.StdEncoding.EncodeToString(s[:]))
h.Set(SseCopyCustomerKeyMD5, base64.StdEncoding.EncodeToString(keyMD5[:]))
}
type s3 struct{}
func (s s3) Type() Type { return S3 }
func (s s3) Marshal(h http.Header) { h.Set(SseGenericHeader, "AES256") }
type kms struct {
key string
context []byte
hasContext bool
}
func (s kms) Type() Type { return KMS }
func (s kms) Marshal(h http.Header) {
h.Set(SseGenericHeader, "aws:kms")
if s.key != "" {
h.Set(SseKmsKeyID, s.key)
}
if s.hasContext {
h.Set(SseEncryptionContext, base64.StdEncoding.EncodeToString(s.context))
}
}
+54
View File
@@ -0,0 +1,54 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2025 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kvcache
import "sync"
// Cache - Provides simple mechanism to hold any key value in memory
// wrapped around via sync.Map but typed with generics.
type Cache[K comparable, V any] struct {
m sync.Map
}
// Delete delete the key
func (r *Cache[K, V]) Delete(key K) {
r.m.Delete(key)
}
// Get - Returns a value of a given key if it exists.
func (r *Cache[K, V]) Get(key K) (value V, ok bool) {
return r.load(key)
}
// Set - Will persist a value into cache.
func (r *Cache[K, V]) Set(key K, value V) {
r.store(key, value)
}
func (r *Cache[K, V]) load(key K) (V, bool) {
value, ok := r.m.Load(key)
if !ok {
var zero V
return zero, false
}
return value.(V), true
}
func (r *Cache[K, V]) store(key K, value V) {
r.m.Store(key, value)
}
+546
View File
@@ -0,0 +1,546 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Package lifecycle contains all the lifecycle related data types and marshallers.
package lifecycle
import (
"encoding/json"
"encoding/xml"
"errors"
"time"
)
var errMissingStorageClass = errors.New("storage-class cannot be empty")
// AbortIncompleteMultipartUpload structure, not supported yet on MinIO
type AbortIncompleteMultipartUpload struct {
XMLName xml.Name `xml:"AbortIncompleteMultipartUpload,omitempty" json:"-"`
DaysAfterInitiation ExpirationDays `xml:"DaysAfterInitiation,omitempty" json:"DaysAfterInitiation,omitempty"`
}
// IsDaysNull returns true if days field is null
func (n AbortIncompleteMultipartUpload) IsDaysNull() bool {
return n.DaysAfterInitiation == ExpirationDays(0)
}
// MarshalXML if days after initiation is set to non-zero value
func (n AbortIncompleteMultipartUpload) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if n.IsDaysNull() {
return nil
}
type abortIncompleteMultipartUploadWrapper AbortIncompleteMultipartUpload
return e.EncodeElement(abortIncompleteMultipartUploadWrapper(n), start)
}
// NoncurrentVersionExpiration - Specifies when noncurrent object versions expire.
// Upon expiration, server permanently deletes the noncurrent object versions.
// Set this lifecycle configuration action on a bucket that has versioning enabled
// (or suspended) to request server delete noncurrent object versions at a
// specific period in the object's lifetime.
type NoncurrentVersionExpiration struct {
XMLName xml.Name `xml:"NoncurrentVersionExpiration" json:"-"`
NoncurrentDays ExpirationDays `xml:"NoncurrentDays,omitempty" json:"NoncurrentDays,omitempty"`
NewerNoncurrentVersions int `xml:"NewerNoncurrentVersions,omitempty" json:"NewerNoncurrentVersions,omitempty"`
}
// MarshalXML if n is non-empty, i.e has a non-zero NoncurrentDays or NewerNoncurrentVersions.
func (n NoncurrentVersionExpiration) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if n.isNull() {
return nil
}
type noncurrentVersionExpirationWrapper NoncurrentVersionExpiration
return e.EncodeElement(noncurrentVersionExpirationWrapper(n), start)
}
// IsDaysNull returns true if days field is null
func (n NoncurrentVersionExpiration) IsDaysNull() bool {
return n.NoncurrentDays == ExpirationDays(0)
}
func (n NoncurrentVersionExpiration) isNull() bool {
return n.IsDaysNull() && n.NewerNoncurrentVersions == 0
}
// NoncurrentVersionTransition structure, set this action to request server to
// transition noncurrent object versions to different set storage classes
// at a specific period in the object's lifetime.
type NoncurrentVersionTransition struct {
XMLName xml.Name `xml:"NoncurrentVersionTransition,omitempty" json:"-"`
StorageClass string `xml:"StorageClass,omitempty" json:"StorageClass,omitempty"`
NoncurrentDays ExpirationDays `xml:"NoncurrentDays" json:"NoncurrentDays"`
NewerNoncurrentVersions int `xml:"NewerNoncurrentVersions,omitempty" json:"NewerNoncurrentVersions,omitempty"`
}
// IsDaysNull returns true if days field is null
func (n NoncurrentVersionTransition) IsDaysNull() bool {
return n.NoncurrentDays == ExpirationDays(0)
}
// IsStorageClassEmpty returns true if storage class field is empty
func (n NoncurrentVersionTransition) IsStorageClassEmpty() bool {
return n.StorageClass == ""
}
func (n NoncurrentVersionTransition) isNull() bool {
return n.StorageClass == ""
}
// UnmarshalJSON implements NoncurrentVersionTransition JSONify
func (n *NoncurrentVersionTransition) UnmarshalJSON(b []byte) error {
type noncurrentVersionTransition NoncurrentVersionTransition
var nt noncurrentVersionTransition
err := json.Unmarshal(b, &nt)
if err != nil {
return err
}
if nt.StorageClass == "" {
return errMissingStorageClass
}
*n = NoncurrentVersionTransition(nt)
return nil
}
// MarshalXML is extended to leave out
// <NoncurrentVersionTransition></NoncurrentVersionTransition> tags
func (n NoncurrentVersionTransition) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if n.isNull() {
return nil
}
type noncurrentVersionTransitionWrapper NoncurrentVersionTransition
return e.EncodeElement(noncurrentVersionTransitionWrapper(n), start)
}
// Tag structure key/value pair representing an object tag to apply lifecycle configuration
type Tag struct {
XMLName xml.Name `xml:"Tag,omitempty" json:"-"`
Key string `xml:"Key,omitempty" json:"Key,omitempty"`
Value string `xml:"Value,omitempty" json:"Value,omitempty"`
}
// IsEmpty returns whether this tag is empty or not.
func (tag Tag) IsEmpty() bool {
return tag.Key == ""
}
// Transition structure - transition details of lifecycle configuration
type Transition struct {
XMLName xml.Name `xml:"Transition" json:"-"`
Date ExpirationDate `xml:"Date,omitempty" json:"Date,omitempty"`
StorageClass string `xml:"StorageClass,omitempty" json:"StorageClass,omitempty"`
Days ExpirationDays `xml:"Days" json:"Days"`
}
// UnmarshalJSON returns an error if storage-class is empty.
func (t *Transition) UnmarshalJSON(b []byte) error {
type transition Transition
var tr transition
err := json.Unmarshal(b, &tr)
if err != nil {
return err
}
if tr.StorageClass == "" {
return errMissingStorageClass
}
*t = Transition(tr)
return nil
}
// MarshalJSON customizes json encoding by omitting empty values
func (t Transition) MarshalJSON() ([]byte, error) {
if t.IsNull() {
return nil, nil
}
type transition struct {
Date *ExpirationDate `json:"Date,omitempty"`
StorageClass string `json:"StorageClass,omitempty"`
Days *ExpirationDays `json:"Days"`
}
newt := transition{
StorageClass: t.StorageClass,
}
if !t.IsDateNull() {
newt.Date = &t.Date
} else {
newt.Days = &t.Days
}
return json.Marshal(newt)
}
// IsDaysNull returns true if days field is null
func (t Transition) IsDaysNull() bool {
return t.Days == ExpirationDays(0)
}
// IsDateNull returns true if date field is null
func (t Transition) IsDateNull() bool {
return t.Date.IsZero()
}
// IsNull returns true if no storage-class is set.
func (t Transition) IsNull() bool {
return t.StorageClass == ""
}
// MarshalXML is transition is non null
func (t Transition) MarshalXML(en *xml.Encoder, startElement xml.StartElement) error {
if t.IsNull() {
return nil
}
type transitionWrapper Transition
return en.EncodeElement(transitionWrapper(t), startElement)
}
// And And Rule for LifecycleTag, to be used in LifecycleRuleFilter
type And struct {
XMLName xml.Name `xml:"And" json:"-"`
Prefix string `xml:"Prefix" json:"Prefix,omitempty"`
Tags []Tag `xml:"Tag" json:"Tags,omitempty"`
ObjectSizeLessThan int64 `xml:"ObjectSizeLessThan,omitempty" json:"ObjectSizeLessThan,omitempty"`
ObjectSizeGreaterThan int64 `xml:"ObjectSizeGreaterThan,omitempty" json:"ObjectSizeGreaterThan,omitempty"`
}
// IsEmpty returns true if Tags field is null
func (a And) IsEmpty() bool {
return len(a.Tags) == 0 && a.Prefix == "" &&
a.ObjectSizeLessThan == 0 && a.ObjectSizeGreaterThan == 0
}
// Filter will be used in selecting rule(s) for lifecycle configuration
type Filter struct {
XMLName xml.Name `xml:"Filter" json:"-"`
And And `xml:"And,omitempty" json:"And,omitempty"`
Prefix string `xml:"Prefix,omitempty" json:"Prefix,omitempty"`
Tag Tag `xml:"Tag,omitempty" json:"Tag,omitempty"`
ObjectSizeLessThan int64 `xml:"ObjectSizeLessThan,omitempty" json:"ObjectSizeLessThan,omitempty"`
ObjectSizeGreaterThan int64 `xml:"ObjectSizeGreaterThan,omitempty" json:"ObjectSizeGreaterThan,omitempty"`
}
// IsNull returns true if all Filter fields are empty.
func (f Filter) IsNull() bool {
return f.Tag.IsEmpty() && f.And.IsEmpty() && f.Prefix == "" &&
f.ObjectSizeLessThan == 0 && f.ObjectSizeGreaterThan == 0
}
// MarshalJSON customizes json encoding by removing empty values.
func (f Filter) MarshalJSON() ([]byte, error) {
type filter struct {
And *And `json:"And,omitempty"`
Prefix string `json:"Prefix,omitempty"`
Tag *Tag `json:"Tag,omitempty"`
ObjectSizeLessThan int64 `json:"ObjectSizeLessThan,omitempty"`
ObjectSizeGreaterThan int64 `json:"ObjectSizeGreaterThan,omitempty"`
}
newf := filter{
Prefix: f.Prefix,
}
if !f.Tag.IsEmpty() {
newf.Tag = &f.Tag
}
if !f.And.IsEmpty() {
newf.And = &f.And
}
newf.ObjectSizeLessThan = f.ObjectSizeLessThan
newf.ObjectSizeGreaterThan = f.ObjectSizeGreaterThan
return json.Marshal(newf)
}
// MarshalXML - produces the xml representation of the Filter struct
// only one of Prefix, And and Tag should be present in the output.
func (f Filter) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
if f.IsNull() {
return nil
}
if err := e.EncodeToken(start); err != nil {
return err
}
switch {
case !f.And.IsEmpty():
if err := e.EncodeElement(f.And, xml.StartElement{Name: xml.Name{Local: "And"}}); err != nil {
return err
}
case !f.Tag.IsEmpty():
if err := e.EncodeElement(f.Tag, xml.StartElement{Name: xml.Name{Local: "Tag"}}); err != nil {
return err
}
default:
if f.ObjectSizeLessThan > 0 {
if err := e.EncodeElement(f.ObjectSizeLessThan, xml.StartElement{Name: xml.Name{Local: "ObjectSizeLessThan"}}); err != nil {
return err
}
break
}
if f.ObjectSizeGreaterThan > 0 {
if err := e.EncodeElement(f.ObjectSizeGreaterThan, xml.StartElement{Name: xml.Name{Local: "ObjectSizeGreaterThan"}}); err != nil {
return err
}
break
}
// Print empty Prefix field only when everything else is empty
if err := e.EncodeElement(f.Prefix, xml.StartElement{Name: xml.Name{Local: "Prefix"}}); err != nil {
return err
}
}
return e.EncodeToken(xml.EndElement{Name: start.Name})
}
// ExpirationDays is a type alias to unmarshal Days in Expiration
type ExpirationDays int
// MarshalXML encodes number of days to expire if it is non-zero and
// encodes empty string otherwise
func (eDays ExpirationDays) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {
if eDays == 0 {
return nil
}
return e.EncodeElement(int(eDays), startElement)
}
// ExpirationDate is a embedded type containing time.Time to unmarshal
// Date in Expiration
type ExpirationDate struct {
time.Time
}
// MarshalXML encodes expiration date if it is non-zero and encodes
// empty string otherwise
func (eDate ExpirationDate) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {
if eDate.IsZero() {
return nil
}
return e.EncodeElement(eDate.Format(time.RFC3339), startElement)
}
// ExpireDeleteMarker represents value of ExpiredObjectDeleteMarker field in Expiration XML element.
type ExpireDeleteMarker ExpirationBoolean
// IsEnabled returns true if the auto delete-marker expiration is enabled
func (e ExpireDeleteMarker) IsEnabled() bool {
return bool(e)
}
// ExpirationBoolean represents an XML version of 'bool' type
type ExpirationBoolean bool
// MarshalXML encodes delete marker boolean into an XML form.
func (b ExpirationBoolean) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {
if !b {
return nil
}
type booleanWrapper ExpirationBoolean
return e.EncodeElement(booleanWrapper(b), startElement)
}
// IsEnabled returns true if the expiration boolean is enabled
func (b ExpirationBoolean) IsEnabled() bool {
return bool(b)
}
// Expiration structure - expiration details of lifecycle configuration
type Expiration struct {
XMLName xml.Name `xml:"Expiration,omitempty" json:"-"`
Date ExpirationDate `xml:"Date,omitempty" json:"Date,omitempty"`
Days ExpirationDays `xml:"Days,omitempty" json:"Days,omitempty"`
DeleteMarker ExpireDeleteMarker `xml:"ExpiredObjectDeleteMarker,omitempty" json:"ExpiredObjectDeleteMarker,omitempty"`
DeleteAll ExpirationBoolean `xml:"ExpiredObjectAllVersions,omitempty" json:"ExpiredObjectAllVersions,omitempty"`
}
// MarshalJSON customizes json encoding by removing empty day/date specification.
func (e Expiration) MarshalJSON() ([]byte, error) {
type expiration struct {
Date *ExpirationDate `json:"Date,omitempty"`
Days *ExpirationDays `json:"Days,omitempty"`
DeleteMarker ExpireDeleteMarker `json:"ExpiredObjectDeleteMarker,omitempty"`
DeleteAll ExpirationBoolean `json:"ExpiredObjectAllVersions,omitempty"`
}
newexp := expiration{
DeleteMarker: e.DeleteMarker,
DeleteAll: e.DeleteAll,
}
if !e.IsDaysNull() {
newexp.Days = &e.Days
}
if !e.IsDateNull() {
newexp.Date = &e.Date
}
return json.Marshal(newexp)
}
// IsDaysNull returns true if days field is null
func (e Expiration) IsDaysNull() bool {
return e.Days == ExpirationDays(0)
}
// IsDateNull returns true if date field is null
func (e Expiration) IsDateNull() bool {
return e.Date.IsZero()
}
// IsDeleteMarkerExpirationEnabled returns true if the auto-expiration of delete marker is enabled
func (e Expiration) IsDeleteMarkerExpirationEnabled() bool {
return e.DeleteMarker.IsEnabled()
}
// IsNull returns true if both date and days fields are null
func (e Expiration) IsNull() bool {
return e.IsDaysNull() && e.IsDateNull() && !e.IsDeleteMarkerExpirationEnabled() && !e.DeleteAll.IsEnabled()
}
// MarshalXML is expiration is non null
func (e Expiration) MarshalXML(en *xml.Encoder, startElement xml.StartElement) error {
if e.IsNull() {
return nil
}
type expirationWrapper Expiration
return en.EncodeElement(expirationWrapper(e), startElement)
}
// DelMarkerExpiration represents DelMarkerExpiration actions element in an ILM policy
type DelMarkerExpiration struct {
XMLName xml.Name `xml:"DelMarkerExpiration" json:"-"`
Days int `xml:"Days,omitempty" json:"Days,omitempty"`
}
// IsNull returns true if Days isn't specified and false otherwise.
func (de DelMarkerExpiration) IsNull() bool {
return de.Days == 0
}
// MarshalXML avoids serializing an empty DelMarkerExpiration element
func (de DelMarkerExpiration) MarshalXML(enc *xml.Encoder, start xml.StartElement) error {
if de.IsNull() {
return nil
}
type delMarkerExp DelMarkerExpiration
return enc.EncodeElement(delMarkerExp(de), start)
}
// AllVersionsExpiration represents AllVersionsExpiration actions element in an ILM policy
type AllVersionsExpiration struct {
XMLName xml.Name `xml:"AllVersionsExpiration" json:"-"`
Days int `xml:"Days,omitempty" json:"Days,omitempty"`
DeleteMarker ExpireDeleteMarker `xml:"DeleteMarker,omitempty" json:"DeleteMarker,omitempty"`
}
// IsNull returns true if days field is 0
func (e AllVersionsExpiration) IsNull() bool {
return e.Days == 0
}
// MarshalXML satisfies xml.Marshaler to provide custom encoding
func (e AllVersionsExpiration) MarshalXML(enc *xml.Encoder, start xml.StartElement) error {
if e.IsNull() {
return nil
}
type allVersionsExp AllVersionsExpiration
return enc.EncodeElement(allVersionsExp(e), start)
}
// MarshalJSON customizes json encoding by omitting empty values
func (r Rule) MarshalJSON() ([]byte, error) {
type rule struct {
AbortIncompleteMultipartUpload *AbortIncompleteMultipartUpload `json:"AbortIncompleteMultipartUpload,omitempty"`
Expiration *Expiration `json:"Expiration,omitempty"`
DelMarkerExpiration *DelMarkerExpiration `json:"DelMarkerExpiration,omitempty"`
AllVersionsExpiration *AllVersionsExpiration `json:"AllVersionsExpiration,omitempty"`
ID string `json:"ID"`
RuleFilter *Filter `json:"Filter,omitempty"`
NoncurrentVersionExpiration *NoncurrentVersionExpiration `json:"NoncurrentVersionExpiration,omitempty"`
NoncurrentVersionTransition *NoncurrentVersionTransition `json:"NoncurrentVersionTransition,omitempty"`
Prefix string `json:"Prefix,omitempty"`
Status string `json:"Status"`
Transition *Transition `json:"Transition,omitempty"`
}
newr := rule{
Prefix: r.Prefix,
Status: r.Status,
ID: r.ID,
}
if !r.RuleFilter.IsNull() {
newr.RuleFilter = &r.RuleFilter
}
if !r.AbortIncompleteMultipartUpload.IsDaysNull() {
newr.AbortIncompleteMultipartUpload = &r.AbortIncompleteMultipartUpload
}
if !r.Expiration.IsNull() {
newr.Expiration = &r.Expiration
}
if !r.DelMarkerExpiration.IsNull() {
newr.DelMarkerExpiration = &r.DelMarkerExpiration
}
if !r.Transition.IsNull() {
newr.Transition = &r.Transition
}
if !r.NoncurrentVersionExpiration.isNull() {
newr.NoncurrentVersionExpiration = &r.NoncurrentVersionExpiration
}
if !r.NoncurrentVersionTransition.isNull() {
newr.NoncurrentVersionTransition = &r.NoncurrentVersionTransition
}
if !r.AllVersionsExpiration.IsNull() {
newr.AllVersionsExpiration = &r.AllVersionsExpiration
}
return json.Marshal(newr)
}
// Rule represents a single rule in lifecycle configuration
type Rule struct {
XMLName xml.Name `xml:"Rule,omitempty" json:"-"`
AbortIncompleteMultipartUpload AbortIncompleteMultipartUpload `xml:"AbortIncompleteMultipartUpload,omitempty" json:"AbortIncompleteMultipartUpload,omitempty"`
Expiration Expiration `xml:"Expiration,omitempty" json:"Expiration,omitempty"`
DelMarkerExpiration DelMarkerExpiration `xml:"DelMarkerExpiration,omitempty" json:"DelMarkerExpiration,omitempty"`
AllVersionsExpiration AllVersionsExpiration `xml:"AllVersionsExpiration,omitempty" json:"AllVersionsExpiration,omitempty"`
ID string `xml:"ID" json:"ID"`
RuleFilter Filter `xml:"Filter,omitempty" json:"Filter,omitempty"`
NoncurrentVersionExpiration NoncurrentVersionExpiration `xml:"NoncurrentVersionExpiration,omitempty" json:"NoncurrentVersionExpiration,omitempty"`
NoncurrentVersionTransition NoncurrentVersionTransition `xml:"NoncurrentVersionTransition,omitempty" json:"NoncurrentVersionTransition,omitempty"`
Prefix string `xml:"Prefix,omitempty" json:"Prefix,omitempty"`
Status string `xml:"Status" json:"Status"`
Transition Transition `xml:"Transition,omitempty" json:"Transition,omitempty"`
}
// Configuration is a collection of Rule objects.
type Configuration struct {
XMLName xml.Name `xml:"LifecycleConfiguration,omitempty" json:"-"`
Rules []Rule `xml:"Rule"`
}
// Empty check if lifecycle configuration is empty
func (c *Configuration) Empty() bool {
if c == nil {
return true
}
return len(c.Rules) == 0
}
// NewConfiguration initializes a fresh lifecycle configuration
// for manipulation, such as setting and removing lifecycle rules
// and filters.
func NewConfiguration() *Configuration {
return &Configuration{}
}
+78
View File
@@ -0,0 +1,78 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package notification
// Indentity represents the user id, this is a compliance field.
type identity struct {
PrincipalID string `json:"principalId"`
}
// event bucket metadata.
type bucketMeta struct {
Name string `json:"name"`
OwnerIdentity identity `json:"ownerIdentity"`
ARN string `json:"arn"`
}
// event object metadata.
type objectMeta struct {
Key string `json:"key"`
Size int64 `json:"size,omitempty"`
ETag string `json:"eTag,omitempty"`
ContentType string `json:"contentType,omitempty"`
UserMetadata map[string]string `json:"userMetadata,omitempty"`
VersionID string `json:"versionId,omitempty"`
Sequencer string `json:"sequencer"`
}
// event server specific metadata.
type eventMeta struct {
SchemaVersion string `json:"s3SchemaVersion"`
ConfigurationID string `json:"configurationId"`
Bucket bucketMeta `json:"bucket"`
Object objectMeta `json:"object"`
}
// sourceInfo represents information on the client that
// triggered the event notification.
type sourceInfo struct {
Host string `json:"host"`
Port string `json:"port"`
UserAgent string `json:"userAgent"`
}
// Event represents an Amazon an S3 bucket notification event.
type Event struct {
EventVersion string `json:"eventVersion"`
EventSource string `json:"eventSource"`
AwsRegion string `json:"awsRegion"`
EventTime string `json:"eventTime"`
EventName string `json:"eventName"`
UserIdentity identity `json:"userIdentity"`
RequestParameters map[string]string `json:"requestParameters"`
ResponseElements map[string]string `json:"responseElements"`
S3 eventMeta `json:"s3"`
Source sourceInfo `json:"source"`
}
// Info - represents the collection of notification events, additionally
// also reports errors if any while listening on bucket notifications.
type Info struct {
Records []Event
Err error
}
@@ -0,0 +1,438 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package notification
import (
"encoding/xml"
"errors"
"fmt"
"strings"
"github.com/minio/minio-go/v7/pkg/set"
)
// EventType is a S3 notification event associated to the bucket notification configuration
type EventType string
// The role of all event types are described in :
//
// http://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html#notification-how-to-event-types-and-destinations
const (
ObjectCreatedAll EventType = "s3:ObjectCreated:*"
ObjectCreatedPut EventType = "s3:ObjectCreated:Put"
ObjectCreatedPost EventType = "s3:ObjectCreated:Post"
ObjectCreatedCopy EventType = "s3:ObjectCreated:Copy"
ObjectCreatedDeleteTagging EventType = "s3:ObjectCreated:DeleteTagging"
ObjectCreatedCompleteMultipartUpload EventType = "s3:ObjectCreated:CompleteMultipartUpload"
ObjectCreatedPutLegalHold EventType = "s3:ObjectCreated:PutLegalHold"
ObjectCreatedPutRetention EventType = "s3:ObjectCreated:PutRetention"
ObjectCreatedPutTagging EventType = "s3:ObjectCreated:PutTagging"
ObjectAccessedGet EventType = "s3:ObjectAccessed:Get"
ObjectAccessedHead EventType = "s3:ObjectAccessed:Head"
ObjectAccessedGetRetention EventType = "s3:ObjectAccessed:GetRetention"
ObjectAccessedGetLegalHold EventType = "s3:ObjectAccessed:GetLegalHold"
ObjectAccessedAll EventType = "s3:ObjectAccessed:*"
ObjectRemovedAll EventType = "s3:ObjectRemoved:*"
ObjectRemovedDelete EventType = "s3:ObjectRemoved:Delete"
ObjectRemovedDeleteMarkerCreated EventType = "s3:ObjectRemoved:DeleteMarkerCreated"
ILMDelMarkerExpirationDelete EventType = "s3:LifecycleDelMarkerExpiration:Delete"
ObjectReducedRedundancyLostObject EventType = "s3:ReducedRedundancyLostObject"
ObjectTransitionAll EventType = "s3:ObjectTransition:*"
ObjectTransitionFailed EventType = "s3:ObjectTransition:Failed"
ObjectTransitionComplete EventType = "s3:ObjectTransition:Complete"
ObjectTransitionPost EventType = "s3:ObjectRestore:Post"
ObjectTransitionCompleted EventType = "s3:ObjectRestore:Completed"
ObjectReplicationAll EventType = "s3:Replication:*"
ObjectReplicationOperationCompletedReplication EventType = "s3:Replication:OperationCompletedReplication"
ObjectReplicationOperationFailedReplication EventType = "s3:Replication:OperationFailedReplication"
ObjectReplicationOperationMissedThreshold EventType = "s3:Replication:OperationMissedThreshold"
ObjectReplicationOperationNotTracked EventType = "s3:Replication:OperationNotTracked"
ObjectReplicationOperationReplicatedAfterThreshold EventType = "s3:Replication:OperationReplicatedAfterThreshold"
ObjectScannerManyVersions EventType = "s3:Scanner:ManyVersions"
ObjectScannerBigPrefix EventType = "s3:Scanner:BigPrefix"
ObjectScannerAll EventType = "s3:Scanner:*"
BucketCreatedAll EventType = "s3:BucketCreated:*"
BucketRemovedAll EventType = "s3:BucketRemoved:*"
)
// FilterRule - child of S3Key, a tag in the notification xml which
// carries suffix/prefix filters
type FilterRule struct {
Name string `xml:"Name"`
Value string `xml:"Value"`
}
// S3Key - child of Filter, a tag in the notification xml which
// carries suffix/prefix filters
type S3Key struct {
FilterRules []FilterRule `xml:"FilterRule,omitempty"`
}
// Filter - a tag in the notification xml structure which carries
// suffix/prefix filters
type Filter struct {
S3Key S3Key `xml:"S3Key,omitempty"`
}
// Arn - holds ARN information that will be sent to the web service,
// ARN desciption can be found in http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html
type Arn struct {
Partition string
Service string
Region string
AccountID string
Resource string
}
// NewArn creates new ARN based on the given partition, service, region, account id and resource
func NewArn(partition, service, region, accountID, resource string) Arn {
return Arn{
Partition: partition,
Service: service,
Region: region,
AccountID: accountID,
Resource: resource,
}
}
var (
// ErrInvalidArnPrefix is returned when ARN string format does not start with 'arn'
ErrInvalidArnPrefix = errors.New("invalid ARN format, must start with 'arn:'")
// ErrInvalidArnFormat is returned when ARN string format is not valid
ErrInvalidArnFormat = errors.New("invalid ARN format, must be 'arn:<partition>:<service>:<region>:<accountID>:<resource>'")
)
// NewArnFromString parses string representation of ARN into Arn object.
// Returns an error if the string format is incorrect.
func NewArnFromString(arn string) (Arn, error) {
parts := strings.Split(arn, ":")
if len(parts) != 6 {
return Arn{}, ErrInvalidArnFormat
}
if parts[0] != "arn" {
return Arn{}, ErrInvalidArnPrefix
}
return NewArn(parts[1], parts[2], parts[3], parts[4], parts[5]), nil
}
// String returns the string format of the ARN
func (arn Arn) String() string {
return "arn:" + arn.Partition + ":" + arn.Service + ":" + arn.Region + ":" + arn.AccountID + ":" + arn.Resource
}
// Config - represents one single notification configuration
// such as topic, queue or lambda configuration.
type Config struct {
ID string `xml:"Id,omitempty"`
Arn Arn `xml:"-"`
Events []EventType `xml:"Event"`
Filter *Filter `xml:"Filter,omitempty"`
}
// NewConfig creates one notification config and sets the given ARN
func NewConfig(arn Arn) Config {
return Config{Arn: arn, Filter: &Filter{}}
}
// AddEvents adds one event to the current notification config
func (t *Config) AddEvents(events ...EventType) {
t.Events = append(t.Events, events...)
}
// AddFilterSuffix sets the suffix configuration to the current notification config
func (t *Config) AddFilterSuffix(suffix string) {
if t.Filter == nil {
t.Filter = &Filter{}
}
newFilterRule := FilterRule{Name: "suffix", Value: suffix}
// Replace any suffix rule if existing and add to the list otherwise
for index := range t.Filter.S3Key.FilterRules {
if t.Filter.S3Key.FilterRules[index].Name == "suffix" {
t.Filter.S3Key.FilterRules[index] = newFilterRule
return
}
}
t.Filter.S3Key.FilterRules = append(t.Filter.S3Key.FilterRules, newFilterRule)
}
// AddFilterPrefix sets the prefix configuration to the current notification config
func (t *Config) AddFilterPrefix(prefix string) {
if t.Filter == nil {
t.Filter = &Filter{}
}
newFilterRule := FilterRule{Name: "prefix", Value: prefix}
// Replace any prefix rule if existing and add to the list otherwise
for index := range t.Filter.S3Key.FilterRules {
if t.Filter.S3Key.FilterRules[index].Name == "prefix" {
t.Filter.S3Key.FilterRules[index] = newFilterRule
return
}
}
t.Filter.S3Key.FilterRules = append(t.Filter.S3Key.FilterRules, newFilterRule)
}
// EqualEventTypeList tells whether a and b contain the same events
func EqualEventTypeList(a, b []EventType) bool {
if len(a) != len(b) {
return false
}
setA := set.NewStringSet()
for _, i := range a {
setA.Add(string(i))
}
setB := set.NewStringSet()
for _, i := range b {
setB.Add(string(i))
}
return setA.Difference(setB).IsEmpty()
}
// EqualFilterRuleList tells whether a and b contain the same filters
func EqualFilterRuleList(a, b []FilterRule) bool {
if len(a) != len(b) {
return false
}
setA := set.NewStringSet()
for _, i := range a {
setA.Add(fmt.Sprintf("%s-%s", i.Name, i.Value))
}
setB := set.NewStringSet()
for _, i := range b {
setB.Add(fmt.Sprintf("%s-%s", i.Name, i.Value))
}
return setA.Difference(setB).IsEmpty()
}
// Equal returns whether this `Config` is equal to another defined by the passed parameters
func (t *Config) Equal(events []EventType, prefix, suffix string) bool {
if t == nil {
return false
}
// Compare events
passEvents := EqualEventTypeList(t.Events, events)
// Compare filters
var newFilterRules []FilterRule
if prefix != "" {
newFilterRules = append(newFilterRules, FilterRule{Name: "prefix", Value: prefix})
}
if suffix != "" {
newFilterRules = append(newFilterRules, FilterRule{Name: "suffix", Value: suffix})
}
var currentFilterRules []FilterRule
if t.Filter != nil {
currentFilterRules = t.Filter.S3Key.FilterRules
}
passFilters := EqualFilterRuleList(currentFilterRules, newFilterRules)
return passEvents && passFilters
}
// TopicConfig carries one single topic notification configuration
type TopicConfig struct {
Config
Topic string `xml:"Topic"`
}
// QueueConfig carries one single queue notification configuration
type QueueConfig struct {
Config
Queue string `xml:"Queue"`
}
// LambdaConfig carries one single cloudfunction notification configuration
type LambdaConfig struct {
Config
Lambda string `xml:"CloudFunction"`
}
// Configuration - the struct that represents the whole XML to be sent to the web service
type Configuration struct {
XMLName xml.Name `xml:"NotificationConfiguration"`
LambdaConfigs []LambdaConfig `xml:"CloudFunctionConfiguration"`
TopicConfigs []TopicConfig `xml:"TopicConfiguration"`
QueueConfigs []QueueConfig `xml:"QueueConfiguration"`
}
// AddTopic adds a given topic config to the general bucket notification config
func (b *Configuration) AddTopic(topicConfig Config) bool {
newTopicConfig := TopicConfig{Config: topicConfig, Topic: topicConfig.Arn.String()}
for _, n := range b.TopicConfigs {
// If new config matches existing one
if n.Topic == newTopicConfig.Arn.String() && newTopicConfig.Filter == n.Filter {
existingConfig := set.NewStringSet()
for _, v := range n.Events {
existingConfig.Add(string(v))
}
newConfig := set.NewStringSet()
for _, v := range topicConfig.Events {
newConfig.Add(string(v))
}
if !newConfig.Intersection(existingConfig).IsEmpty() {
return false
}
}
}
b.TopicConfigs = append(b.TopicConfigs, newTopicConfig)
return true
}
// AddQueue adds a given queue config to the general bucket notification config
func (b *Configuration) AddQueue(queueConfig Config) bool {
newQueueConfig := QueueConfig{Config: queueConfig, Queue: queueConfig.Arn.String()}
for _, n := range b.QueueConfigs {
if n.Queue == newQueueConfig.Arn.String() && newQueueConfig.Filter == n.Filter {
existingConfig := set.NewStringSet()
for _, v := range n.Events {
existingConfig.Add(string(v))
}
newConfig := set.NewStringSet()
for _, v := range queueConfig.Events {
newConfig.Add(string(v))
}
if !newConfig.Intersection(existingConfig).IsEmpty() {
return false
}
}
}
b.QueueConfigs = append(b.QueueConfigs, newQueueConfig)
return true
}
// AddLambda adds a given lambda config to the general bucket notification config
func (b *Configuration) AddLambda(lambdaConfig Config) bool {
newLambdaConfig := LambdaConfig{Config: lambdaConfig, Lambda: lambdaConfig.Arn.String()}
for _, n := range b.LambdaConfigs {
if n.Lambda == newLambdaConfig.Arn.String() && newLambdaConfig.Filter == n.Filter {
existingConfig := set.NewStringSet()
for _, v := range n.Events {
existingConfig.Add(string(v))
}
newConfig := set.NewStringSet()
for _, v := range lambdaConfig.Events {
newConfig.Add(string(v))
}
if !newConfig.Intersection(existingConfig).IsEmpty() {
return false
}
}
}
b.LambdaConfigs = append(b.LambdaConfigs, newLambdaConfig)
return true
}
// RemoveTopicByArn removes all topic configurations that match the exact specified ARN
func (b *Configuration) RemoveTopicByArn(arn Arn) {
var topics []TopicConfig
for _, topic := range b.TopicConfigs {
if topic.Topic != arn.String() {
topics = append(topics, topic)
}
}
b.TopicConfigs = topics
}
// ErrNoConfigMatch is returned when a notification configuration (sqs,sns,lambda) is not found when trying to delete
var ErrNoConfigMatch = errors.New("no notification configuration matched")
// RemoveTopicByArnEventsPrefixSuffix removes a topic configuration that match the exact specified ARN, events, prefix and suffix
func (b *Configuration) RemoveTopicByArnEventsPrefixSuffix(arn Arn, events []EventType, prefix, suffix string) error {
removeIndex := -1
for i, v := range b.TopicConfigs {
// if it matches events and filters, mark the index for deletion
if v.Topic == arn.String() && v.Equal(events, prefix, suffix) {
removeIndex = i
break // since we have at most one matching config
}
}
if removeIndex >= 0 {
b.TopicConfigs = append(b.TopicConfigs[:removeIndex], b.TopicConfigs[removeIndex+1:]...)
return nil
}
return ErrNoConfigMatch
}
// RemoveQueueByArn removes all queue configurations that match the exact specified ARN
func (b *Configuration) RemoveQueueByArn(arn Arn) {
var queues []QueueConfig
for _, queue := range b.QueueConfigs {
if queue.Queue != arn.String() {
queues = append(queues, queue)
}
}
b.QueueConfigs = queues
}
// RemoveQueueByArnEventsPrefixSuffix removes a queue configuration that match the exact specified ARN, events, prefix and suffix
func (b *Configuration) RemoveQueueByArnEventsPrefixSuffix(arn Arn, events []EventType, prefix, suffix string) error {
removeIndex := -1
for i, v := range b.QueueConfigs {
// if it matches events and filters, mark the index for deletion
if v.Queue == arn.String() && v.Equal(events, prefix, suffix) {
removeIndex = i
break // since we have at most one matching config
}
}
if removeIndex >= 0 {
b.QueueConfigs = append(b.QueueConfigs[:removeIndex], b.QueueConfigs[removeIndex+1:]...)
return nil
}
return ErrNoConfigMatch
}
// RemoveLambdaByArn removes all lambda configurations that match the exact specified ARN
func (b *Configuration) RemoveLambdaByArn(arn Arn) {
var lambdas []LambdaConfig
for _, lambda := range b.LambdaConfigs {
if lambda.Lambda != arn.String() {
lambdas = append(lambdas, lambda)
}
}
b.LambdaConfigs = lambdas
}
// RemoveLambdaByArnEventsPrefixSuffix removes a topic configuration that match the exact specified ARN, events, prefix and suffix
func (b *Configuration) RemoveLambdaByArnEventsPrefixSuffix(arn Arn, events []EventType, prefix, suffix string) error {
removeIndex := -1
for i, v := range b.LambdaConfigs {
// if it matches events and filters, mark the index for deletion
if v.Lambda == arn.String() && v.Equal(events, prefix, suffix) {
removeIndex = i
break // since we have at most one matching config
}
}
if removeIndex >= 0 {
b.LambdaConfigs = append(b.LambdaConfigs[:removeIndex], b.LambdaConfigs[removeIndex+1:]...)
return nil
}
return ErrNoConfigMatch
}
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package s3utils
import (
"bytes"
"encoding/hex"
"errors"
"net"
"net/url"
"regexp"
"sort"
"strings"
"unicode/utf8"
)
// Sentinel URL is the default url value which is invalid.
var sentinelURL = url.URL{}
// IsValidDomain validates if input string is a valid domain name.
func IsValidDomain(host string) bool {
// See RFC 1035, RFC 3696.
host = strings.TrimSpace(host)
if len(host) == 0 || len(host) > 255 {
return false
}
// host cannot start or end with "-"
if host[len(host)-1:] == "-" || host[:1] == "-" {
return false
}
// host cannot start or end with "_"
if host[len(host)-1:] == "_" || host[:1] == "_" {
return false
}
// host cannot start with a "."
if host[:1] == "." {
return false
}
// All non alphanumeric characters are invalid.
if strings.ContainsAny(host, "`~!@#$%^&*()+={}[]|\\\"';:><?/") {
return false
}
// No need to regexp match, since the list is non-exhaustive.
// We let it valid and fail later.
return true
}
// IsValidIP parses input string for ip address validity.
func IsValidIP(ip string) bool {
return net.ParseIP(ip) != nil
}
// IsVirtualHostSupported - verifies if bucketName can be part of
// virtual host. Currently only Amazon S3 and Google Cloud Storage
// would support this.
func IsVirtualHostSupported(endpointURL url.URL, bucketName string) bool {
if endpointURL == sentinelURL {
return false
}
// bucketName can be valid but '.' in the hostname will fail SSL
// certificate validation. So do not use host-style for such buckets.
if endpointURL.Scheme == "https" && strings.Contains(bucketName, ".") {
return false
}
// Return true for all other cases
return IsAmazonEndpoint(endpointURL) || IsGoogleEndpoint(endpointURL) || IsAliyunOSSEndpoint(endpointURL)
}
// Refer for region styles - https://docs.aws.amazon.com/general/latest/gr/rande.html#s3_region
// amazonS3HostHyphen - regular expression used to determine if an arg is s3 host in hyphenated style.
var amazonS3HostHyphen = regexp.MustCompile(`^s3-(.*?).amazonaws.com$`)
// amazonS3HostDualStack - regular expression used to determine if an arg is s3 host dualstack.
var amazonS3HostDualStack = regexp.MustCompile(`^s3.dualstack.(.*?).amazonaws.com$`)
// amazonS3HostFIPS - regular expression used to determine if an arg is s3 FIPS host.
var amazonS3HostFIPS = regexp.MustCompile(`^s3-fips.(.*?).amazonaws.com$`)
// amazonS3HostFIPSDualStack - regular expression used to determine if an arg is s3 FIPS host dualstack.
var amazonS3HostFIPSDualStack = regexp.MustCompile(`^s3-fips.dualstack.(.*?).amazonaws.com$`)
// amazonS3HostExpress - regular expression used to determine if an arg is S3 Express zonal endpoint.
var amazonS3HostExpress = regexp.MustCompile(`^s3express-[a-z0-9]{3,7}-az[1-6]\.([a-z0-9-]+)\.amazonaws\.com$`)
// amazonS3HostExpressControl - regular expression used to determine if an arg is S3 express regional endpoint.
var amazonS3HostExpressControl = regexp.MustCompile(`^s3express-control\.([a-z0-9-]+)\.amazonaws\.com$`)
// amazonS3HostDot - regular expression used to determine if an arg is s3 host in . style.
var amazonS3HostDot = regexp.MustCompile(`^s3.(.*?).amazonaws.com$`)
// amazonS3ChinaHost - regular expression used to determine if the arg is s3 china host.
var amazonS3ChinaHost = regexp.MustCompile(`^s3.(cn.*?).amazonaws.com.cn$`)
// amazonS3ChinaHostDualStack - regular expression used to determine if the arg is s3 china host dualstack.
var amazonS3ChinaHostDualStack = regexp.MustCompile(`^s3.dualstack.(cn.*?).amazonaws.com.cn$`)
// Regular expression used to determine if the arg is elb host.
var elbAmazonRegex = regexp.MustCompile(`elb(.*?).amazonaws.com$`)
// Regular expression used to determine if the arg is elb host in china.
var elbAmazonCnRegex = regexp.MustCompile(`elb(.*?).amazonaws.com.cn$`)
// amazonS3HostPrivateLink - regular expression used to determine if an arg is s3 host in AWS PrivateLink interface endpoints style
var amazonS3HostPrivateLink = regexp.MustCompile(`^(?:bucket|accesspoint).vpce-.*?.s3.(.*?).vpce.amazonaws.com$`)
// amazonS3HostOutposts - regular expression used to determine if an arg is S3 on Outposts endpoint.
// Pattern: <something>.s3-outposts.<region>.amazonaws.com
var amazonS3HostOutposts = regexp.MustCompile(`^(.+)\.s3-outposts\.([a-z0-9-]+)\.amazonaws\.com$`)
// GetRegionFromURL - returns a region from url host.
func GetRegionFromURL(endpointURL url.URL) string {
if endpointURL == sentinelURL {
return ""
}
if endpointURL.Hostname() == "s3-external-1.amazonaws.com" {
return ""
}
// if elb's are used we cannot calculate which region it may be, just return empty.
if elbAmazonRegex.MatchString(endpointURL.Hostname()) || elbAmazonCnRegex.MatchString(endpointURL.Hostname()) {
return ""
}
// We check for FIPS dualstack matching first to avoid the non-greedy
// regex for FIPS non-dualstack matching a dualstack URL
parts := amazonS3HostFIPSDualStack.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
return parts[1]
}
parts = amazonS3HostFIPS.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
return parts[1]
}
parts = amazonS3HostDualStack.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
return parts[1]
}
parts = amazonS3HostHyphen.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
return parts[1]
}
parts = amazonS3ChinaHost.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
return parts[1]
}
parts = amazonS3ChinaHostDualStack.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
return parts[1]
}
parts = amazonS3HostPrivateLink.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
return parts[1]
}
parts = amazonS3HostExpress.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
return parts[1]
}
parts = amazonS3HostExpressControl.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
return parts[1]
}
parts = amazonS3HostOutposts.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 2 {
return parts[2]
}
parts = amazonS3HostDot.FindStringSubmatch(endpointURL.Hostname())
if len(parts) > 1 {
if strings.HasPrefix(parts[1], "xpress-") {
return ""
}
if strings.HasPrefix(parts[1], "dualstack.") || strings.HasPrefix(parts[1], "control.") || strings.HasPrefix(parts[1], "website-") {
return ""
}
return parts[1]
}
return ""
}
// IsAliyunOSSEndpoint - Match if it is exactly Aliyun OSS endpoint.
func IsAliyunOSSEndpoint(endpointURL url.URL) bool {
return strings.HasSuffix(endpointURL.Hostname(), "aliyuncs.com")
}
// IsAmazonExpressRegionalEndpoint Match if the endpoint is S3 Express regional endpoint.
func IsAmazonExpressRegionalEndpoint(endpointURL url.URL) bool {
return amazonS3HostExpressControl.MatchString(endpointURL.Hostname())
}
// IsAmazonExpressZonalEndpoint Match if the endpoint is S3 Express zonal endpoint.
func IsAmazonExpressZonalEndpoint(endpointURL url.URL) bool {
return amazonS3HostExpress.MatchString(endpointURL.Hostname())
}
// IsAmazonOutpostsEndpoint - Match if the endpoint is S3 on Outposts endpoint.
func IsAmazonOutpostsEndpoint(endpointURL url.URL) bool {
if endpointURL == sentinelURL {
return false
}
return amazonS3HostOutposts.MatchString(endpointURL.Hostname())
}
// IsAmazonEndpoint - Match if it is exactly Amazon S3 endpoint.
// S3 on Outposts is not treated as Amazon S3 here so that the client keeps path-style and does not replace the host.
func IsAmazonEndpoint(endpointURL url.URL) bool {
if IsAmazonOutpostsEndpoint(endpointURL) {
return false
}
if endpointURL.Hostname() == "s3-external-1.amazonaws.com" || endpointURL.Hostname() == "s3.amazonaws.com" {
return true
}
return GetRegionFromURL(endpointURL) != ""
}
// IsAmazonGovCloudEndpoint - Match if it is exactly Amazon S3 GovCloud endpoint.
func IsAmazonGovCloudEndpoint(endpointURL url.URL) bool {
if endpointURL == sentinelURL {
return false
}
return (endpointURL.Host == "s3-us-gov-west-1.amazonaws.com" ||
endpointURL.Host == "s3-us-gov-east-1.amazonaws.com" ||
IsAmazonFIPSGovCloudEndpoint(endpointURL))
}
// IsAmazonFIPSGovCloudEndpoint - match if the endpoint is FIPS and GovCloud.
func IsAmazonFIPSGovCloudEndpoint(endpointURL url.URL) bool {
if endpointURL == sentinelURL {
return false
}
return IsAmazonFIPSEndpoint(endpointURL) && strings.Contains(endpointURL.Hostname(), "us-gov-")
}
// IsAmazonFIPSEndpoint - Match if it is exactly Amazon S3 FIPS endpoint.
// See https://aws.amazon.com/compliance/fips.
func IsAmazonFIPSEndpoint(endpointURL url.URL) bool {
if endpointURL == sentinelURL {
return false
}
return strings.HasPrefix(endpointURL.Hostname(), "s3-fips") && strings.HasSuffix(endpointURL.Hostname(), ".amazonaws.com")
}
// IsAmazonPrivateLinkEndpoint - Match if it is exactly Amazon S3 PrivateLink interface endpoint
// See https://docs.aws.amazon.com/AmazonS3/latest/userguide/privatelink-interface-endpoints.html.
func IsAmazonPrivateLinkEndpoint(endpointURL url.URL) bool {
if endpointURL == sentinelURL {
return false
}
return amazonS3HostPrivateLink.MatchString(endpointURL.Hostname())
}
// IsGoogleEndpoint - Match if it is exactly Google cloud storage endpoint.
func IsGoogleEndpoint(endpointURL url.URL) bool {
if endpointURL == sentinelURL {
return false
}
return endpointURL.Hostname() == "storage.googleapis.com"
}
// Expects ascii encoded strings - from output of urlEncodePath
func percentEncodeSlash(s string) string {
return strings.ReplaceAll(s, "/", "%2F")
}
// QueryEncode - encodes query values in their URL encoded form. In
// addition to the percent encoding performed by urlEncodePath() used
// here, it also percent encodes '/' (forward slash)
func QueryEncode(v url.Values) string {
if v == nil {
return ""
}
var buf bytes.Buffer
keys := make([]string, 0, len(v))
for k := range v {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
vs := v[k]
prefix := percentEncodeSlash(EncodePath(k)) + "="
for _, v := range vs {
if buf.Len() > 0 {
buf.WriteByte('&')
}
buf.WriteString(prefix)
buf.WriteString(percentEncodeSlash(EncodePath(v)))
}
}
return buf.String()
}
// if object matches reserved string, no need to encode them
var reservedObjectNames = regexp.MustCompile("^[a-zA-Z0-9-_.~/]+$")
// EncodePath encode the strings from UTF-8 byte representations to HTML hex escape sequences
//
// This is necessary since regular url.Parse() and url.Encode() functions do not support UTF-8
// non english characters cannot be parsed due to the nature in which url.Encode() is written
//
// This function on the other hand is a direct replacement for url.Encode() technique to support
// pretty much every UTF-8 character.
func EncodePath(pathName string) string {
if reservedObjectNames.MatchString(pathName) {
return pathName
}
var encodedPathname strings.Builder
for _, s := range pathName {
if 'A' <= s && s <= 'Z' || 'a' <= s && s <= 'z' || '0' <= s && s <= '9' { // §2.3 Unreserved characters (mark)
encodedPathname.WriteRune(s)
continue
}
switch s {
case '-', '_', '.', '~', '/': // §2.3 Unreserved characters (mark)
encodedPathname.WriteRune(s)
continue
default:
l := utf8.RuneLen(s)
if l < 0 {
// if utf8 cannot convert return the same string as is
return pathName
}
u := make([]byte, l)
utf8.EncodeRune(u, s)
for _, r := range u {
hex := hex.EncodeToString([]byte{r})
encodedPathname.WriteString("%" + strings.ToUpper(hex))
}
}
}
return encodedPathname.String()
}
// We support '.' with bucket names but we fallback to using path
// style requests instead for such buckets.
var (
validBucketName = regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9\.\-\_\:]{1,61}[A-Za-z0-9]$`)
validBucketNameStrict = regexp.MustCompile(`^[a-z0-9][a-z0-9\.\-]{1,61}[a-z0-9]$`)
validBucketNameS3Express = regexp.MustCompile(`^[a-z0-9][a-z0-9.-]{1,61}[a-z0-9]--[a-z0-9]{3,7}-az[1-6]--x-s3$`)
ipAddress = regexp.MustCompile(`^(\d+\.){3}\d+$`)
)
// Common checker for both stricter and basic validation.
func checkBucketNameCommon(bucketName string, strict bool) (err error) {
if strings.TrimSpace(bucketName) == "" {
return errors.New("Bucket name cannot be empty")
}
if len(bucketName) < 3 {
return errors.New("Bucket name cannot be shorter than 3 characters")
}
if len(bucketName) > 63 {
return errors.New("Bucket name cannot be longer than 63 characters")
}
if ipAddress.MatchString(bucketName) {
return errors.New("Bucket name cannot be an ip address")
}
if strings.Contains(bucketName, "..") || strings.Contains(bucketName, ".-") || strings.Contains(bucketName, "-.") {
return errors.New("Bucket name contains invalid characters")
}
if strict {
if !validBucketNameStrict.MatchString(bucketName) {
err = errors.New("Bucket name contains invalid characters")
}
return err
}
if !validBucketName.MatchString(bucketName) {
err = errors.New("Bucket name contains invalid characters")
}
return err
}
// CheckValidBucketName - checks if we have a valid input bucket name.
func CheckValidBucketName(bucketName string) (err error) {
return checkBucketNameCommon(bucketName, false)
}
// IsS3ExpressBucket is S3 express bucket?
func IsS3ExpressBucket(bucketName string) bool {
return CheckValidBucketNameS3Express(bucketName) == nil
}
// CheckValidBucketNameS3Express - checks if we have a valid input bucket name for S3 Express.
func CheckValidBucketNameS3Express(bucketName string) (err error) {
if strings.TrimSpace(bucketName) == "" {
return errors.New("Bucket name cannot be empty for S3 Express")
}
if len(bucketName) < 3 {
return errors.New("Bucket name cannot be shorter than 3 characters for S3 Express")
}
if len(bucketName) > 63 {
return errors.New("Bucket name cannot be longer than 63 characters for S3 Express")
}
// Check if the bucket matches the regex
if !validBucketNameS3Express.MatchString(bucketName) {
return errors.New("Bucket name contains invalid characters")
}
// Extract bucket name (before --<az-id>--x-s3)
parts := strings.Split(bucketName, "--")
if len(parts) != 3 || parts[2] != "x-s3" {
return errors.New("Bucket name pattern is wrong 'x-s3'")
}
bucketName = parts[0]
// Additional validation for bucket name
// 1. No consecutive periods or hyphens
if strings.Contains(bucketName, "..") || strings.Contains(bucketName, "--") {
return errors.New("Bucket name contains invalid characters")
}
// 2. No period-hyphen or hyphen-period
if strings.Contains(bucketName, ".-") || strings.Contains(bucketName, "-.") {
return errors.New("Bucket name has unexpected format or contains invalid characters")
}
// 3. No IP address format (e.g., 192.168.0.1)
if ipAddress.MatchString(bucketName) {
return errors.New("Bucket name cannot be an ip address")
}
return nil
}
// CheckValidBucketNameStrict - checks if we have a valid input bucket name.
// This is a stricter version.
// - http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingBucket.html
func CheckValidBucketNameStrict(bucketName string) (err error) {
return checkBucketNameCommon(bucketName, true)
}
// CheckValidObjectNamePrefix - checks if we have a valid input object name prefix.
// - http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingMetadata.html
func CheckValidObjectNamePrefix(objectName string) error {
if len(objectName) > 1024 {
return errors.New("Object name cannot be longer than 1024 characters")
}
if !utf8.ValidString(objectName) {
return errors.New("Object name with non UTF-8 strings are not supported")
}
return nil
}
// CheckValidObjectName - checks if we have a valid input object name.
// - http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingMetadata.html
func CheckValidObjectName(objectName string) error {
if strings.TrimSpace(objectName) == "" {
return errors.New("Object name cannot be empty")
}
return CheckValidObjectNamePrefix(objectName)
}
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2026 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package set
import (
"encoding/json"
"fmt"
)
// IntSet - uses map as set of ints.
// This is now implemented using the generic Set[int] type.
type IntSet Set[int]
// ToSlice - returns IntSet as int slice.
func (set IntSet) ToSlice() []int {
return ToSliceOrdered(Set[int](set))
}
// IsEmpty - returns whether the set is empty or not.
func (set IntSet) IsEmpty() bool {
return Set[int](set).IsEmpty()
}
// Add - adds int to the set.
func (set IntSet) Add(i int) {
Set[int](set).Add(i)
}
// Remove - removes int in the set. It does nothing if int does not exist in the set.
func (set IntSet) Remove(i int) {
Set[int](set).Remove(i)
}
// Contains - checks if int is in the set.
func (set IntSet) Contains(i int) bool {
return Set[int](set).Contains(i)
}
// FuncMatch - returns new set containing each value who passes match function.
// A 'matchFn' should accept element in a set as first argument and
// 'matchInt' as second argument. The function can do any logic to
// compare both the arguments and should return true to accept element in
// a set to include in output set else the element is ignored.
func (set IntSet) FuncMatch(matchFn func(int, int) bool, matchInt int) IntSet {
return IntSet(Set[int](set).FuncMatch(matchFn, matchInt))
}
// ApplyFunc - returns new set containing each value processed by 'applyFn'.
// A 'applyFn' should accept element in a set as a argument and return
// a processed int. The function can do any logic to return a processed
// int.
func (set IntSet) ApplyFunc(applyFn func(int) int) IntSet {
return IntSet(Set[int](set).ApplyFunc(applyFn))
}
// Equals - checks whether given set is equal to current set or not.
func (set IntSet) Equals(iset IntSet) bool {
return Set[int](set).Equals(Set[int](iset))
}
// Intersection - returns the intersection with given set as new set.
func (set IntSet) Intersection(iset IntSet) IntSet {
return IntSet(Set[int](set).Intersection(Set[int](iset)))
}
// Difference - returns the difference with given set as new set.
func (set IntSet) Difference(iset IntSet) IntSet {
return IntSet(Set[int](set).Difference(Set[int](iset)))
}
// Union - returns the union with given set as new set.
func (set IntSet) Union(iset IntSet) IntSet {
return IntSet(Set[int](set).Union(Set[int](iset)))
}
// MarshalJSON - converts to JSON data.
func (set IntSet) MarshalJSON() ([]byte, error) {
return json.Marshal(set.ToSlice())
}
// UnmarshalJSON - parses JSON data and creates new set with it.
func (set *IntSet) UnmarshalJSON(data []byte) error {
sl := []int{}
var err error
if err = json.Unmarshal(data, &sl); err == nil {
*set = make(IntSet)
for _, i := range sl {
set.Add(i)
}
}
return err
}
// String - returns printable string of the set.
func (set IntSet) String() string {
return fmt.Sprintf("%v", set.ToSlice())
}
// NewIntSet - creates new int set.
func NewIntSet() IntSet {
return IntSet(New[int]())
}
// CreateIntSet - creates new int set with given int values.
func CreateIntSet(il ...int) IntSet {
return IntSet(Create(il...))
}
// CopyIntSet - returns copy of given set.
func CopyIntSet(set IntSet) IntSet {
return IntSet(Copy(Set[int](set)))
}
+131
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2026 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package set
import (
"github.com/tinylib/msgp/msgp"
"github.com/tinylib/msgp/msgp/setof"
)
// EncodeMsg encodes the message to the writer.
// Values are stored as a slice of strings or nil.
func (s StringSet) EncodeMsg(writer *msgp.Writer) error {
return setof.StringSorted(s).EncodeMsg(writer)
}
// MarshalMsg encodes the message to the bytes.
// Values are stored as a slice of strings or nil.
func (s StringSet) MarshalMsg(bytes []byte) ([]byte, error) {
return setof.StringSorted(s).MarshalMsg(bytes)
}
// DecodeMsg decodes the message from the reader.
func (s *StringSet) DecodeMsg(reader *msgp.Reader) error {
var ss setof.String
if err := ss.DecodeMsg(reader); err != nil {
return err
}
*s = StringSet(ss)
return nil
}
// UnmarshalMsg decodes the message from the bytes.
func (s *StringSet) UnmarshalMsg(bytes []byte) ([]byte, error) {
var ss setof.String
bytes, err := ss.UnmarshalMsg(bytes)
if err != nil {
return nil, err
}
*s = StringSet(ss)
return bytes, nil
}
// Msgsize returns the maximum size of the message.
func (s StringSet) Msgsize() int {
return setof.String(s).Msgsize()
}
// MarshalBinary encodes the receiver into a binary form and returns the result.
func (s StringSet) MarshalBinary() ([]byte, error) {
return s.MarshalMsg(nil)
}
// AppendBinary appends the binary representation of itself to the end of b
func (s StringSet) AppendBinary(b []byte) ([]byte, error) {
return s.MarshalMsg(b)
}
// UnmarshalBinary decodes the binary representation of itself from b
func (s *StringSet) UnmarshalBinary(b []byte) error {
_, err := s.UnmarshalMsg(b)
return err
}
// EncodeMsg encodes the message to the writer.
// Values are stored as a slice of ints or nil.
func (s IntSet) EncodeMsg(writer *msgp.Writer) error {
return setof.IntSorted(s).EncodeMsg(writer)
}
// MarshalMsg encodes the message to the bytes.
// Values are stored as a slice of ints or nil.
func (s IntSet) MarshalMsg(bytes []byte) ([]byte, error) {
return setof.IntSorted(s).MarshalMsg(bytes)
}
// DecodeMsg decodes the message from the reader.
func (s *IntSet) DecodeMsg(reader *msgp.Reader) error {
var is setof.Int
if err := is.DecodeMsg(reader); err != nil {
return err
}
*s = IntSet(is)
return nil
}
// UnmarshalMsg decodes the message from the bytes.
func (s *IntSet) UnmarshalMsg(bytes []byte) ([]byte, error) {
var is setof.Int
bytes, err := is.UnmarshalMsg(bytes)
if err != nil {
return nil, err
}
*s = IntSet(is)
return bytes, nil
}
// Msgsize returns the maximum size of the message.
func (s IntSet) Msgsize() int {
return setof.Int(s).Msgsize()
}
// MarshalBinary encodes the receiver into a binary form and returns the result.
func (s IntSet) MarshalBinary() ([]byte, error) {
return s.MarshalMsg(nil)
}
// AppendBinary appends the binary representation of itself to the end of b
func (s IntSet) AppendBinary(b []byte) ([]byte, error) {
return s.MarshalMsg(b)
}
// UnmarshalBinary decodes the binary representation of itself from b
func (s *IntSet) UnmarshalBinary(b []byte) error {
_, err := s.UnmarshalMsg(b)
return err
}
+190
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/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2026 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package set
import (
"cmp"
"slices"
)
// Set - uses map as a set of comparable elements.
//
// Important Caveats:
// - Sets are unordered by nature. Map iteration order is non-deterministic in Go.
// - When converting to slices, use ToSlice() with a comparison function or
// ToSliceOrdered() for ordered types to get deterministic, sorted results.
// - Comparison functions must provide total ordering: if your comparison returns 0
// for different elements, their relative order in the result is undefined.
// - For deterministic ordering when elements may compare equal, use secondary
// sort criteria (e.g., sort by length first, then alphabetically for ties).
type Set[T comparable] map[T]struct{}
// ToSlice - returns Set as a slice sorted using the provided comparison function.
// If cmpFn is nil, the slice order is undefined (non-deterministic).
//
// Important: The comparison function should provide total ordering. If it returns 0
// for elements that are not identical, their relative order in the result is undefined.
// For deterministic results, use secondary sort criteria for tie-breaking.
func (set Set[T]) ToSlice(cmpFn func(a, b T) int) []T {
keys := make([]T, 0, len(set))
for k := range set {
keys = append(keys, k)
}
if cmpFn != nil {
slices.SortFunc(keys, cmpFn)
}
return keys
}
// ToSliceOrdered - returns Set as a sorted slice for ordered types.
// This is a convenience method for types that implement cmp.Ordered.
// The result is deterministic and always sorted in ascending order.
func ToSliceOrdered[T cmp.Ordered](set Set[T]) []T {
keys := make([]T, 0, len(set))
for k := range set {
keys = append(keys, k)
}
slices.Sort(keys)
return keys
}
// IsEmpty - returns whether the set is empty or not.
func (set Set[T]) IsEmpty() bool {
return len(set) == 0
}
// Add - adds element to the set.
func (set Set[T]) Add(s T) {
set[s] = struct{}{}
}
// Remove - removes element from the set. It does nothing if element does not exist in the set.
func (set Set[T]) Remove(s T) {
delete(set, s)
}
// Contains - checks if element is in the set.
func (set Set[T]) Contains(s T) bool {
_, ok := set[s]
return ok
}
// FuncMatch - returns new set containing each value that passes match function.
// A 'matchFn' should accept element in a set as first argument and
// 'matchValue' as second argument. The function can do any logic to
// compare both the arguments and should return true to accept element in
// a set to include in output set else the element is ignored.
func (set Set[T]) FuncMatch(matchFn func(T, T) bool, matchValue T) Set[T] {
nset := New[T]()
for k := range set {
if matchFn(k, matchValue) {
nset.Add(k)
}
}
return nset
}
// ApplyFunc - returns new set containing each value processed by 'applyFn'.
// A 'applyFn' should accept element in a set as an argument and return
// a processed value. The function can do any logic to return a processed value.
func (set Set[T]) ApplyFunc(applyFn func(T) T) Set[T] {
nset := New[T]()
for k := range set {
nset.Add(applyFn(k))
}
return nset
}
// Equals - checks whether given set is equal to current set or not.
func (set Set[T]) Equals(sset Set[T]) bool {
// If length of set is not equal to length of given set, the
// set is not equal to given set.
if len(set) != len(sset) {
return false
}
// As both sets are equal in length, check each elements are equal.
for k := range set {
if _, ok := sset[k]; !ok {
return false
}
}
return true
}
// Intersection - returns the intersection with given set as new set.
func (set Set[T]) Intersection(sset Set[T]) Set[T] {
nset := New[T]()
for k := range set {
if _, ok := sset[k]; ok {
nset.Add(k)
}
}
return nset
}
// Difference - returns the difference with given set as new set.
func (set Set[T]) Difference(sset Set[T]) Set[T] {
nset := New[T]()
for k := range set {
if _, ok := sset[k]; !ok {
nset.Add(k)
}
}
return nset
}
// Union - returns the union with given set as new set.
func (set Set[T]) Union(sset Set[T]) Set[T] {
nset := New[T]()
for k := range set {
nset.Add(k)
}
for k := range sset {
nset.Add(k)
}
return nset
}
// New - creates new set.
func New[T comparable]() Set[T] {
return make(Set[T])
}
// Create - creates new set with given values.
func Create[T comparable](sl ...T) Set[T] {
set := make(Set[T], len(sl))
for _, k := range sl {
set.Add(k)
}
return set
}
// Copy - returns copy of given set.
func Copy[T comparable](set Set[T]) Set[T] {
nset := make(Set[T], len(set))
for k, v := range set {
nset[k] = v
}
return nset
}
+159
View File
@@ -0,0 +1,159 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2026 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package set
import (
"encoding/json"
"fmt"
"sort"
)
// StringSet - uses map as set of strings.
// This is now implemented using the generic Set[string] type.
type StringSet Set[string]
// ToSlice - returns StringSet as string slice.
func (set StringSet) ToSlice() []string {
return ToSliceOrdered(Set[string](set))
}
// ToByteSlices - returns StringSet as a sorted
// slice of byte slices, using only one allocation.
func (set StringSet) ToByteSlices() [][]byte {
length := 0
for k := range set {
length += len(k)
}
// Preallocate the slice with the total length of all strings
// to avoid multiple allocations.
dst := make([]byte, length)
// Add keys to this...
keys := make([][]byte, 0, len(set))
for k := range set {
n := copy(dst, k)
keys = append(keys, dst[:n])
dst = dst[n:]
}
sort.Slice(keys, func(i, j int) bool {
return string(keys[i]) < string(keys[j])
})
return keys
}
// IsEmpty - returns whether the set is empty or not.
func (set StringSet) IsEmpty() bool {
return Set[string](set).IsEmpty()
}
// Add - adds string to the set.
func (set StringSet) Add(s string) {
Set[string](set).Add(s)
}
// Remove - removes string in the set. It does nothing if string does not exist in the set.
func (set StringSet) Remove(s string) {
Set[string](set).Remove(s)
}
// Contains - checks if string is in the set.
func (set StringSet) Contains(s string) bool {
return Set[string](set).Contains(s)
}
// FuncMatch - returns new set containing each value who passes match function.
// A 'matchFn' should accept element in a set as first argument and
// 'matchString' as second argument. The function can do any logic to
// compare both the arguments and should return true to accept element in
// a set to include in output set else the element is ignored.
func (set StringSet) FuncMatch(matchFn func(string, string) bool, matchString string) StringSet {
return StringSet(Set[string](set).FuncMatch(matchFn, matchString))
}
// ApplyFunc - returns new set containing each value processed by 'applyFn'.
// A 'applyFn' should accept element in a set as a argument and return
// a processed string. The function can do any logic to return a processed
// string.
func (set StringSet) ApplyFunc(applyFn func(string) string) StringSet {
return StringSet(Set[string](set).ApplyFunc(applyFn))
}
// Equals - checks whether given set is equal to current set or not.
func (set StringSet) Equals(sset StringSet) bool {
return Set[string](set).Equals(Set[string](sset))
}
// Intersection - returns the intersection with given set as new set.
func (set StringSet) Intersection(sset StringSet) StringSet {
return StringSet(Set[string](set).Intersection(Set[string](sset)))
}
// Difference - returns the difference with given set as new set.
func (set StringSet) Difference(sset StringSet) StringSet {
return StringSet(Set[string](set).Difference(Set[string](sset)))
}
// Union - returns the union with given set as new set.
func (set StringSet) Union(sset StringSet) StringSet {
return StringSet(Set[string](set).Union(Set[string](sset)))
}
// MarshalJSON - converts to JSON data.
func (set StringSet) MarshalJSON() ([]byte, error) {
return json.Marshal(set.ToSlice())
}
// UnmarshalJSON - parses JSON data and creates new set with it.
func (set *StringSet) UnmarshalJSON(data []byte) error {
sl := []interface{}{}
var err error
if err = json.Unmarshal(data, &sl); err == nil {
*set = make(StringSet)
for _, s := range sl {
set.Add(fmt.Sprintf("%v", s))
}
} else {
var s interface{}
if err = json.Unmarshal(data, &s); err == nil {
*set = make(StringSet)
set.Add(fmt.Sprintf("%v", s))
}
}
return err
}
// String - returns printable string of the set.
func (set StringSet) String() string {
return fmt.Sprintf("%s", set.ToSlice())
}
// NewStringSet - creates new string set.
func NewStringSet() StringSet {
return StringSet(New[string]())
}
// CreateStringSet - creates new string set with given string values.
func CreateStringSet(sl ...string) StringSet {
return StringSet(Create(sl...))
}
// CopyStringSet - returns copy of given set.
func CopyStringSet(set StringSet) StringSet {
return StringSet(Copy(Set[string](set)))
}
@@ -0,0 +1,223 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2022 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package signer
import (
"bytes"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"time"
)
// getUnsignedChunkLength - calculates the length of chunk metadata
func getUnsignedChunkLength(chunkDataSize int64) int64 {
return int64(len(fmt.Sprintf("%x", chunkDataSize))) +
crlfLen +
chunkDataSize +
crlfLen
}
// getUSStreamLength - calculates the length of the overall stream (data + metadata)
func getUSStreamLength(dataLen, chunkSize int64, trailers http.Header) int64 {
if dataLen <= 0 {
return 0
}
chunksCount := int64(dataLen / chunkSize)
remainingBytes := int64(dataLen % chunkSize)
streamLen := int64(0)
streamLen += chunksCount * getUnsignedChunkLength(chunkSize)
if remainingBytes > 0 {
streamLen += getUnsignedChunkLength(remainingBytes)
}
streamLen += getUnsignedChunkLength(0)
if len(trailers) > 0 {
for name, placeholder := range trailers {
if len(placeholder) > 0 {
streamLen += int64(len(name) + len(trailerKVSeparator) + len(placeholder[0]) + 1)
}
}
streamLen += crlfLen
}
return streamLen
}
// prepareStreamingRequest - prepares a request with appropriate
// headers before computing the seed signature.
func prepareUSStreamingRequest(req *http.Request, sessionToken string, dataLen int64, timestamp time.Time) {
req.TransferEncoding = []string{"aws-chunked"}
if sessionToken != "" {
req.Header.Set("X-Amz-Security-Token", sessionToken)
}
req.Header.Set("X-Amz-Date", timestamp.Format(iso8601DateFormat))
// Set content length with streaming signature for each chunk included.
req.ContentLength = getUSStreamLength(dataLen, int64(payloadChunkSize), req.Trailer)
}
// StreamingUSReader implements chunked upload signature as a reader on
// top of req.Body's ReaderCloser chunk header;data;... repeat
type StreamingUSReader struct {
contentLen int64 // Content-Length from req header
baseReadCloser io.ReadCloser // underlying io.Reader
bytesRead int64 // bytes read from underlying io.Reader
buf bytes.Buffer // holds signed chunk
chunkBuf []byte // holds raw data read from req Body
chunkBufLen int // no. of bytes read so far into chunkBuf
done bool // done reading the underlying reader to EOF
chunkNum int
totalChunks int
lastChunkSize int
trailer http.Header
}
// writeChunk - signs a chunk read from s.baseReader of chunkLen size.
func (s *StreamingUSReader) writeChunk(chunkLen int, addCrLf bool) {
s.buf.WriteString(strconv.FormatInt(int64(chunkLen), 16) + "\r\n")
// Write chunk data into streaming buffer
s.buf.Write(s.chunkBuf[:chunkLen])
// Write the chunk trailer.
if addCrLf {
s.buf.Write([]byte("\r\n"))
}
// Reset chunkBufLen for next chunk read.
s.chunkBufLen = 0
s.chunkNum++
}
// addSignedTrailer - adds a trailer with the provided headers,
// then signs a chunk and adds it to output.
func (s *StreamingUSReader) addTrailer(h http.Header) {
olen := len(s.chunkBuf)
s.chunkBuf = s.chunkBuf[:0]
for k, v := range h {
s.chunkBuf = append(s.chunkBuf, []byte(strings.ToLower(k)+trailerKVSeparator+v[0]+"\n")...)
}
s.buf.Write(s.chunkBuf)
s.buf.WriteString("\r\n\r\n")
// Reset chunkBufLen for next chunk read.
s.chunkBuf = s.chunkBuf[:olen]
s.chunkBufLen = 0
s.chunkNum++
}
// StreamingUnsignedV4 - provides chunked upload
func StreamingUnsignedV4(req *http.Request, sessionToken string, dataLen int64, reqTime time.Time) *http.Request {
// Set headers needed for streaming signature.
prepareUSStreamingRequest(req, sessionToken, dataLen, reqTime)
if req.Body == nil {
req.Body = io.NopCloser(bytes.NewReader([]byte("")))
}
stReader := &StreamingUSReader{
baseReadCloser: req.Body,
chunkBuf: make([]byte, payloadChunkSize),
contentLen: dataLen,
chunkNum: 1,
totalChunks: int((dataLen+payloadChunkSize-1)/payloadChunkSize) + 1,
lastChunkSize: int(dataLen % payloadChunkSize),
}
if len(req.Trailer) > 0 {
stReader.trailer = req.Trailer
// Remove...
req.Trailer = nil
}
req.Body = stReader
return req
}
// Read - this method performs chunk upload signature providing a
// io.Reader interface.
func (s *StreamingUSReader) Read(buf []byte) (int, error) {
switch {
// After the last chunk is read from underlying reader, we
// never re-fill s.buf.
case s.done:
// s.buf will be (re-)filled with next chunk when has lesser
// bytes than asked for.
case s.buf.Len() < len(buf):
s.chunkBufLen = 0
for {
n1, err := s.baseReadCloser.Read(s.chunkBuf[s.chunkBufLen:])
// Usually we validate `err` first, but in this case
// we are validating n > 0 for the following reasons.
//
// 1. n > 0, err is one of io.EOF, nil (near end of stream)
// A Reader returning a non-zero number of bytes at the end
// of the input stream may return either err == EOF or err == nil
//
// 2. n == 0, err is io.EOF (actual end of stream)
//
// Callers should always process the n > 0 bytes returned
// before considering the error err.
if n1 > 0 {
s.chunkBufLen += n1
s.bytesRead += int64(n1)
if s.chunkBufLen == payloadChunkSize ||
(s.chunkNum == s.totalChunks-1 &&
s.chunkBufLen == s.lastChunkSize) {
// Sign the chunk and write it to s.buf.
s.writeChunk(s.chunkBufLen, true)
break
}
}
if err != nil {
if err == io.EOF {
// No more data left in baseReader - last chunk.
// Done reading the last chunk from baseReader.
s.done = true
// bytes read from baseReader different than
// content length provided.
if s.bytesRead != s.contentLen {
return 0, fmt.Errorf("http: ContentLength=%d with Body length %d", s.contentLen, s.bytesRead)
}
// Sign the chunk and write it to s.buf.
s.writeChunk(0, len(s.trailer) == 0)
if len(s.trailer) > 0 {
// Trailer must be set now.
s.addTrailer(s.trailer)
}
break
}
return 0, err
}
}
}
return s.buf.Read(buf)
}
// Close - this method makes underlying io.ReadCloser's Close method available.
func (s *StreamingUSReader) Close() error {
return s.baseReadCloser.Close()
}
@@ -0,0 +1,500 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package signer
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"time"
md5simd "github.com/minio/md5-simd"
)
// Reference for constants used below -
// http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-streaming.html#example-signature-calculations-streaming
const (
streamingSignAlgorithm = "STREAMING-AWS4-HMAC-SHA256-PAYLOAD"
streamingSignTrailerAlgorithm = "STREAMING-AWS4-HMAC-SHA256-PAYLOAD-TRAILER"
streamingPayloadHdr = "AWS4-HMAC-SHA256-PAYLOAD"
streamingTrailerHdr = "AWS4-HMAC-SHA256-TRAILER"
emptySHA256 = "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
payloadChunkSize = 64 * 1024
chunkSigConstLen = 17 // ";chunk-signature="
signatureStrLen = 64 // e.g. "f2ca1bb6c7e907d06dafe4687e579fce76b37e4e93b7605022da52e6ccc26fd2"
crlfLen = 2 // CRLF
trailerKVSeparator = ":"
trailerSignature = "x-amz-trailer-signature"
)
// Request headers to be ignored while calculating seed signature for
// a request.
var ignoredStreamingHeaders = map[string]bool{
"Authorization": true,
"User-Agent": true,
"Content-Type": true,
}
// getSignedChunkLength - calculates the length of chunk metadata
func getSignedChunkLength(chunkDataSize int64) int64 {
return int64(len(fmt.Sprintf("%x", chunkDataSize))) +
chunkSigConstLen +
signatureStrLen +
crlfLen +
chunkDataSize +
crlfLen
}
// getStreamLength - calculates the length of the overall stream (data + metadata)
func getStreamLength(dataLen, chunkSize int64, trailers http.Header) int64 {
if dataLen <= 0 {
return 0
}
chunksCount := int64(dataLen / chunkSize)
remainingBytes := int64(dataLen % chunkSize)
streamLen := int64(0)
streamLen += chunksCount * getSignedChunkLength(chunkSize)
if remainingBytes > 0 {
streamLen += getSignedChunkLength(remainingBytes)
}
streamLen += getSignedChunkLength(0)
if len(trailers) > 0 {
for name, placeholder := range trailers {
if len(placeholder) > 0 {
streamLen += int64(len(name) + len(trailerKVSeparator) + len(placeholder[0]) + 1)
}
}
streamLen += int64(len(trailerSignature)+len(trailerKVSeparator)) + signatureStrLen + crlfLen + crlfLen
}
return streamLen
}
// buildChunkStringToSignWithService - like buildChunkStringToSign but with configurable service type.
func buildChunkStringToSignWithService(t time.Time, region, previousSig, chunkChecksum, serviceType string) string {
if serviceType == "" {
serviceType = ServiceTypeS3
}
stringToSignParts := []string{
streamingPayloadHdr,
t.Format(iso8601DateFormat),
getScope(region, t, serviceType),
previousSig,
emptySHA256,
chunkChecksum,
}
return strings.Join(stringToSignParts, "\n")
}
// buildTrailerChunkStringToSignWithService - like buildTrailerChunkStringToSign but with configurable service type.
func buildTrailerChunkStringToSignWithService(t time.Time, region, previousSig, chunkChecksum, serviceType string) string {
if serviceType == "" {
serviceType = ServiceTypeS3
}
stringToSignParts := []string{
streamingTrailerHdr,
t.Format(iso8601DateFormat),
getScope(region, t, serviceType),
previousSig,
chunkChecksum,
}
return strings.Join(stringToSignParts, "\n")
}
// prepareStreamingRequest - prepares a request with appropriate
// headers before computing the seed signature.
func prepareStreamingRequest(req *http.Request, sessionToken string, dataLen int64, timestamp time.Time) {
// Set x-amz-content-sha256 header.
if len(req.Trailer) == 0 {
req.Header.Set("X-Amz-Content-Sha256", streamingSignAlgorithm)
} else {
req.Header.Set("X-Amz-Content-Sha256", streamingSignTrailerAlgorithm)
for k := range req.Trailer {
req.Header.Add("X-Amz-Trailer", strings.ToLower(k))
}
req.TransferEncoding = []string{"aws-chunked"}
}
if sessionToken != "" {
req.Header.Set("X-Amz-Security-Token", sessionToken)
}
req.Header.Set("X-Amz-Date", timestamp.Format(iso8601DateFormat))
// Set content length with streaming signature for each chunk included.
req.ContentLength = getStreamLength(dataLen, int64(payloadChunkSize), req.Trailer)
req.Header.Set("x-amz-decoded-content-length", strconv.FormatInt(dataLen, 10))
}
// buildChunkHeader - returns the chunk header.
// e.g string(IntHexBase(chunk-size)) + ";chunk-signature=" + signature + \r\n + chunk-data + \r\n
func buildChunkHeader(chunkLen int64, signature string) []byte {
return []byte(strconv.FormatInt(chunkLen, 16) + ";chunk-signature=" + signature + "\r\n")
}
// buildChunkSignature - returns chunk signature for a given chunk and previous signature.
// serviceType defaults to ServiceTypeS3 when empty.
func buildChunkSignature(chunkCheckSum string, reqTime time.Time, region,
previousSignature, secretAccessKey, serviceType string,
) string {
if serviceType == "" {
serviceType = ServiceTypeS3
}
chunkStringToSign := buildChunkStringToSignWithService(reqTime, region,
previousSignature, chunkCheckSum, serviceType)
signingKey := getSigningKey(secretAccessKey, region, reqTime, serviceType)
return getSignature(signingKey, chunkStringToSign)
}
// buildTrailerChunkSignature - returns chunk signature for trailer chunk.
// serviceType defaults to ServiceTypeS3 when empty.
func buildTrailerChunkSignature(chunkChecksum string, reqTime time.Time, region,
previousSignature, secretAccessKey, serviceType string,
) string {
if serviceType == "" {
serviceType = ServiceTypeS3
}
chunkStringToSign := buildTrailerChunkStringToSignWithService(reqTime, region,
previousSignature, chunkChecksum, serviceType)
signingKey := getSigningKey(secretAccessKey, region, reqTime, serviceType)
return getSignature(signingKey, chunkStringToSign)
}
// getSeedSignature - returns the seed signature for a given request.
func (s *StreamingReader) setSeedSignature(req *http.Request) {
serviceType := s.serviceType
if serviceType == "" {
serviceType = ServiceTypeS3
}
canonicalRequest := getCanonicalRequest(*req, ignoredStreamingHeaders, getHashedPayload(*req))
stringToSign := getStringToSignV4(s.reqTime, s.region, canonicalRequest, serviceType)
signingKey := getSigningKey(s.secretAccessKey, s.region, s.reqTime, serviceType)
s.seedSignature = getSignature(signingKey, stringToSign)
}
// StreamingReader implements chunked upload signature as a reader on
// top of req.Body's ReaderCloser chunk header;data;... repeat
type StreamingReader struct {
accessKeyID string
secretAccessKey string
sessionToken string
region string
serviceType string // e.g. ServiceTypeS3, ServiceTypeS3Outposts; empty means S3
prevSignature string
seedSignature string
contentLen int64 // Content-Length from req header
baseReadCloser io.ReadCloser // underlying io.Reader
bytesRead int64 // bytes read from underlying io.Reader
buf bytes.Buffer // holds signed chunk
chunkBuf []byte // holds raw data read from req Body
chunkBufLen int // no. of bytes read so far into chunkBuf
done bool // done reading the underlying reader to EOF
reqTime time.Time
chunkNum int
totalChunks int
lastChunkSize int
trailer http.Header
sh256 md5simd.Hasher
}
// signChunk - signs a chunk read from s.baseReader of chunkLen size.
func (s *StreamingReader) signChunk(chunkLen int, addCrLf bool) {
// Compute chunk signature for next header
s.sh256.Reset()
s.sh256.Write(s.chunkBuf[:chunkLen])
chunckChecksum := hex.EncodeToString(s.sh256.Sum(nil))
serviceType := s.serviceType
if serviceType == "" {
serviceType = ServiceTypeS3
}
signature := buildChunkSignature(chunckChecksum, s.reqTime,
s.region, s.prevSignature, s.secretAccessKey, serviceType)
// For next chunk signature computation
s.prevSignature = signature
// Write chunk header into streaming buffer
chunkHdr := buildChunkHeader(int64(chunkLen), signature)
s.buf.Write(chunkHdr)
// Write chunk data into streaming buffer
s.buf.Write(s.chunkBuf[:chunkLen])
// Write the chunk trailer.
if addCrLf {
s.buf.Write([]byte("\r\n"))
}
// Reset chunkBufLen for next chunk read.
s.chunkBufLen = 0
s.chunkNum++
}
// addSignedTrailer - adds a trailer with the provided headers,
// then signs a chunk and adds it to output.
func (s *StreamingReader) addSignedTrailer(h http.Header) {
olen := len(s.chunkBuf)
s.chunkBuf = s.chunkBuf[:0]
for k, v := range h {
s.chunkBuf = append(s.chunkBuf, []byte(strings.ToLower(k)+trailerKVSeparator+v[0]+"\n")...)
}
s.sh256.Reset()
s.sh256.Write(s.chunkBuf)
chunkChecksum := hex.EncodeToString(s.sh256.Sum(nil))
serviceType := s.serviceType
if serviceType == "" {
serviceType = ServiceTypeS3
}
signature := buildTrailerChunkSignature(chunkChecksum, s.reqTime,
s.region, s.prevSignature, s.secretAccessKey, serviceType)
// For next chunk signature computation
s.prevSignature = signature
s.buf.Write(s.chunkBuf)
s.buf.WriteString("\r\n" + trailerSignature + trailerKVSeparator + signature + "\r\n\r\n")
// Reset chunkBufLen for next chunk read.
s.chunkBuf = s.chunkBuf[:olen]
s.chunkBufLen = 0
s.chunkNum++
}
// setStreamingAuthHeader - builds and sets authorization header value
// for streaming signature.
func (s *StreamingReader) setStreamingAuthHeader(req *http.Request, serviceType string) {
credential := GetCredential(s.accessKeyID, s.region, s.reqTime, serviceType)
authParts := []string{
signV4Algorithm + " Credential=" + credential,
"SignedHeaders=" + getSignedHeaders(*req, ignoredStreamingHeaders),
"Signature=" + s.seedSignature,
}
// Set authorization header.
auth := strings.Join(authParts, ",")
req.Header.Set("Authorization", auth)
}
// StreamingSignV4Express - provides chunked upload signatureV4 support by
// implementing io.Reader.
func StreamingSignV4Express(req *http.Request, accessKeyID, secretAccessKey, sessionToken,
region string, dataLen int64, reqTime time.Time, sh256 md5simd.Hasher,
) *http.Request {
// Set headers needed for streaming signature.
prepareStreamingRequest(req, sessionToken, dataLen, reqTime)
if req.Body == nil {
req.Body = io.NopCloser(bytes.NewReader([]byte("")))
}
stReader := &StreamingReader{
baseReadCloser: req.Body,
accessKeyID: accessKeyID,
secretAccessKey: secretAccessKey,
sessionToken: sessionToken,
region: region,
reqTime: reqTime,
chunkBuf: make([]byte, payloadChunkSize),
contentLen: dataLen,
chunkNum: 1,
totalChunks: int((dataLen+payloadChunkSize-1)/payloadChunkSize) + 1,
lastChunkSize: int(dataLen % payloadChunkSize),
sh256: sh256,
}
if len(req.Trailer) > 0 {
stReader.trailer = req.Trailer
// Remove...
req.Trailer = nil
}
// Add the request headers required for chunk upload signing.
// Compute the seed signature.
stReader.setSeedSignature(req)
// Set the authorization header with the seed signature.
stReader.setStreamingAuthHeader(req, ServiceTypeS3Express)
// Set seed signature as prevSignature for subsequent
// streaming signing process.
stReader.prevSignature = stReader.seedSignature
req.Body = stReader
return req
}
// StreamingSignV4 - provides chunked upload signatureV4 support by
// implementing io.Reader.
func StreamingSignV4(req *http.Request, accessKeyID, secretAccessKey, sessionToken,
region string, dataLen int64, reqTime time.Time, sh256 md5simd.Hasher,
) *http.Request {
// Set headers needed for streaming signature.
prepareStreamingRequest(req, sessionToken, dataLen, reqTime)
if req.Body == nil {
req.Body = io.NopCloser(bytes.NewReader([]byte("")))
}
stReader := &StreamingReader{
baseReadCloser: req.Body,
accessKeyID: accessKeyID,
secretAccessKey: secretAccessKey,
sessionToken: sessionToken,
region: region,
reqTime: reqTime,
chunkBuf: make([]byte, payloadChunkSize),
contentLen: dataLen,
chunkNum: 1,
totalChunks: int((dataLen+payloadChunkSize-1)/payloadChunkSize) + 1,
lastChunkSize: int(dataLen % payloadChunkSize),
sh256: sh256,
}
if len(req.Trailer) > 0 {
stReader.trailer = req.Trailer
// Remove...
req.Trailer = nil
}
// Add the request headers required for chunk upload signing.
// Compute the seed signature.
stReader.setSeedSignature(req)
// Set the authorization header with the seed signature.
stReader.setStreamingAuthHeader(req, ServiceTypeS3)
// Set seed signature as prevSignature for subsequent
// streaming signing process.
stReader.prevSignature = stReader.seedSignature
req.Body = stReader
return req
}
// StreamingSignV4Outposts - provides chunked upload signatureV4 support for S3 on Outposts (service name s3-outposts).
func StreamingSignV4Outposts(req *http.Request, accessKeyID, secretAccessKey, sessionToken,
region string, dataLen int64, reqTime time.Time, sh256 md5simd.Hasher,
) *http.Request {
prepareStreamingRequest(req, sessionToken, dataLen, reqTime)
if req.Body == nil {
req.Body = io.NopCloser(bytes.NewReader([]byte("")))
}
stReader := &StreamingReader{
baseReadCloser: req.Body,
accessKeyID: accessKeyID,
secretAccessKey: secretAccessKey,
sessionToken: sessionToken,
region: region,
serviceType: ServiceTypeS3Outposts,
reqTime: reqTime,
chunkBuf: make([]byte, payloadChunkSize),
contentLen: dataLen,
chunkNum: 1,
totalChunks: int((dataLen+payloadChunkSize-1)/payloadChunkSize) + 1,
lastChunkSize: int(dataLen % payloadChunkSize),
sh256: sh256,
}
if len(req.Trailer) > 0 {
stReader.trailer = req.Trailer
req.Trailer = nil
}
stReader.setSeedSignature(req)
stReader.setStreamingAuthHeader(req, ServiceTypeS3Outposts)
stReader.prevSignature = stReader.seedSignature
req.Body = stReader
return req
}
// Read - this method performs chunk upload signature providing a
// io.Reader interface.
func (s *StreamingReader) Read(buf []byte) (int, error) {
switch {
// After the last chunk is read from underlying reader, we
// never re-fill s.buf.
case s.done:
// s.buf will be (re-)filled with next chunk when has lesser
// bytes than asked for.
case s.buf.Len() < len(buf):
s.chunkBufLen = 0
for {
n1, err := s.baseReadCloser.Read(s.chunkBuf[s.chunkBufLen:])
// Usually we validate `err` first, but in this case
// we are validating n > 0 for the following reasons.
//
// 1. n > 0, err is one of io.EOF, nil (near end of stream)
// A Reader returning a non-zero number of bytes at the end
// of the input stream may return either err == EOF or err == nil
//
// 2. n == 0, err is io.EOF (actual end of stream)
//
// Callers should always process the n > 0 bytes returned
// before considering the error err.
if n1 > 0 {
s.chunkBufLen += n1
s.bytesRead += int64(n1)
if s.chunkBufLen == payloadChunkSize ||
(s.chunkNum == s.totalChunks-1 &&
s.chunkBufLen == s.lastChunkSize) {
// Sign the chunk and write it to s.buf.
s.signChunk(s.chunkBufLen, true)
break
}
}
if err != nil {
if err == io.EOF {
// No more data left in baseReader - last chunk.
// Done reading the last chunk from baseReader.
s.done = true
// bytes read from baseReader different than
// content length provided.
if s.bytesRead != s.contentLen {
return 0, fmt.Errorf("http: ContentLength=%d with Body length %d", s.contentLen, s.bytesRead)
}
// Sign the chunk and write it to s.buf.
s.signChunk(0, len(s.trailer) == 0)
if len(s.trailer) > 0 {
// Trailer must be set now.
s.addSignedTrailer(s.trailer)
}
break
}
return 0, err
}
}
}
return s.buf.Read(buf)
}
// Close - this method makes underlying io.ReadCloser's Close method available.
func (s *StreamingReader) Close() error {
if s.sh256 != nil {
s.sh256.Close()
s.sh256 = nil
}
return s.baseReadCloser.Close()
}
@@ -0,0 +1,319 @@
/*
* MinIO Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2015-2017 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package signer
import (
"bytes"
"crypto/hmac"
"crypto/sha1"
"encoding/base64"
"fmt"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"time"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
// Signature and API related constants.
const (
signV2Algorithm = "AWS"
)
// Encode input URL path to URL encoded path.
func encodeURL2Path(req *http.Request, virtualHost bool) (path string) {
if virtualHost {
reqHost := getHostAddr(req)
dotPos := strings.Index(reqHost, ".")
if dotPos > -1 {
bucketName := reqHost[:dotPos]
path = "/" + bucketName
path += req.URL.Path
path = s3utils.EncodePath(path)
return path
}
}
path = s3utils.EncodePath(req.URL.Path)
return path
}
// PreSignV2 - presign the request in following style.
// https://${S3_BUCKET}.s3.amazonaws.com/${S3_OBJECT}?AWSAccessKeyId=${S3_ACCESS_KEY}&Expires=${TIMESTAMP}&Signature=${SIGNATURE}.
func PreSignV2(req http.Request, accessKeyID, secretAccessKey string, expires int64, virtualHost bool) *http.Request {
// Presign is not needed for anonymous credentials.
if accessKeyID == "" || secretAccessKey == "" {
return &req
}
d := time.Now().UTC()
// Find epoch expires when the request will expire.
epochExpires := d.Unix() + expires
// Add expires header if not present.
if expiresStr := req.Header.Get("Expires"); expiresStr == "" {
req.Header.Set("Expires", strconv.FormatInt(epochExpires, 10))
}
// Get presigned string to sign.
stringToSign := preStringToSignV2(req, virtualHost)
hm := hmac.New(sha1.New, []byte(secretAccessKey))
hm.Write([]byte(stringToSign))
// Calculate signature.
signature := base64.StdEncoding.EncodeToString(hm.Sum(nil))
query := req.URL.Query()
// Handle specially for Google Cloud Storage.
if strings.Contains(getHostAddr(&req), ".storage.googleapis.com") {
query.Set("GoogleAccessId", accessKeyID)
} else {
query.Set("AWSAccessKeyId", accessKeyID)
}
// Fill in Expires for presigned query.
query.Set("Expires", strconv.FormatInt(epochExpires, 10))
// Encode query and save.
req.URL.RawQuery = s3utils.QueryEncode(query)
// Save signature finally.
req.URL.RawQuery += "&Signature=" + s3utils.EncodePath(signature)
// Return.
return &req
}
// PostPresignSignatureV2 - presigned signature for PostPolicy
// request.
func PostPresignSignatureV2(policyBase64, secretAccessKey string) string {
hm := hmac.New(sha1.New, []byte(secretAccessKey))
hm.Write([]byte(policyBase64))
signature := base64.StdEncoding.EncodeToString(hm.Sum(nil))
return signature
}
// Authorization = "AWS" + " " + AWSAccessKeyId + ":" + Signature;
// Signature = Base64( HMAC-SHA1( YourSecretAccessKeyID, UTF-8-Encoding-Of( StringToSign ) ) );
//
// StringToSign = HTTP-Verb + "\n" +
// Content-Md5 + "\n" +
// Content-Type + "\n" +
// Date + "\n" +
// CanonicalizedProtocolHeaders +
// CanonicalizedResource;
//
// CanonicalizedResource = [ "/" + Bucket ] +
// <HTTP-Request-URI, from the protocol name up to the query string> +
// [ subresource, if present. For example "?acl", "?location", "?logging", or "?torrent"];
//
// CanonicalizedProtocolHeaders = <described below>
// SignV2 sign the request before Do() (AWS Signature Version 2).
func SignV2(req http.Request, accessKeyID, secretAccessKey string, virtualHost bool) *http.Request {
// Signature calculation is not needed for anonymous credentials.
if accessKeyID == "" || secretAccessKey == "" {
return &req
}
// Initial time.
d := time.Now().UTC()
// Add date if not present.
if date := req.Header.Get("Date"); date == "" {
req.Header.Set("Date", d.Format(http.TimeFormat))
}
// Calculate HMAC for secretAccessKey.
stringToSign := stringToSignV2(req, virtualHost)
hm := hmac.New(sha1.New, []byte(secretAccessKey))
hm.Write([]byte(stringToSign))
// Prepare auth header.
authHeader := new(bytes.Buffer)
fmt.Fprintf(authHeader, "%s %s:", signV2Algorithm, accessKeyID)
encoder := base64.NewEncoder(base64.StdEncoding, authHeader)
encoder.Write(hm.Sum(nil))
encoder.Close()
// Set Authorization header.
req.Header.Set("Authorization", authHeader.String())
return &req
}
// From the Amazon docs:
//
// StringToSign = HTTP-Verb + "\n" +
//
// Content-Md5 + "\n" +
// Content-Type + "\n" +
// Expires + "\n" +
// CanonicalizedProtocolHeaders +
// CanonicalizedResource;
func preStringToSignV2(req http.Request, virtualHost bool) string {
buf := new(bytes.Buffer)
// Write standard headers.
writePreSignV2Headers(buf, req)
// Write canonicalized protocol headers if any.
writeCanonicalizedHeaders(buf, req)
// Write canonicalized Query resources if any.
writeCanonicalizedResource(buf, req, virtualHost)
return buf.String()
}
// writePreSignV2Headers - write preSign v2 required headers.
func writePreSignV2Headers(buf *bytes.Buffer, req http.Request) {
buf.WriteString(req.Method + "\n")
buf.WriteString(req.Header.Get("Content-Md5") + "\n")
buf.WriteString(req.Header.Get("Content-Type") + "\n")
buf.WriteString(req.Header.Get("Expires") + "\n")
}
// From the Amazon docs:
//
// StringToSign = HTTP-Verb + "\n" +
//
// Content-Md5 + "\n" +
// Content-Type + "\n" +
// Date + "\n" +
// CanonicalizedProtocolHeaders +
// CanonicalizedResource;
func stringToSignV2(req http.Request, virtualHost bool) string {
buf := new(bytes.Buffer)
// Write standard headers.
writeSignV2Headers(buf, req)
// Write canonicalized protocol headers if any.
writeCanonicalizedHeaders(buf, req)
// Write canonicalized Query resources if any.
writeCanonicalizedResource(buf, req, virtualHost)
return buf.String()
}
// writeSignV2Headers - write signV2 required headers.
func writeSignV2Headers(buf *bytes.Buffer, req http.Request) {
buf.WriteString(req.Method + "\n")
buf.WriteString(req.Header.Get("Content-Md5") + "\n")
buf.WriteString(req.Header.Get("Content-Type") + "\n")
buf.WriteString(req.Header.Get("Date") + "\n")
}
// writeCanonicalizedHeaders - write canonicalized headers.
func writeCanonicalizedHeaders(buf *bytes.Buffer, req http.Request) {
var protoHeaders []string
vals := make(map[string][]string)
for k, vv := range req.Header {
// All the AMZ headers should be lowercase
lk := strings.ToLower(k)
if strings.HasPrefix(lk, "x-amz") {
protoHeaders = append(protoHeaders, lk)
vals[lk] = vv
}
}
sort.Strings(protoHeaders)
for _, k := range protoHeaders {
buf.WriteString(k)
buf.WriteByte(':')
for idx, v := range vals[k] {
if idx > 0 {
buf.WriteByte(',')
}
buf.WriteString(v)
}
buf.WriteByte('\n')
}
}
// AWS S3 Signature V2 calculation rule is give here:
// http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html#RESTAuthenticationStringToSign
// Whitelist resource list that will be used in query string for signature-V2 calculation.
//
// This list should be kept alphabetically sorted, do not hastily edit.
var resourceList = []string{
"acl",
"cors",
"delete",
"encryption",
"legal-hold",
"lifecycle",
"location",
"logging",
"notification",
"partNumber",
"policy",
"replication",
"requestPayment",
"response-cache-control",
"response-content-disposition",
"response-content-encoding",
"response-content-language",
"response-content-type",
"response-expires",
"retention",
"select",
"select-type",
"tagging",
"torrent",
"uploadId",
"uploads",
"versionId",
"versioning",
"versions",
"website",
}
// From the Amazon docs:
//
// CanonicalizedResource = [ "/" + Bucket ] +
//
// <HTTP-Request-URI, from the protocol name up to the query string> +
// [ sub-resource, if present. For example "?acl", "?location", "?logging", or "?torrent"];
func writeCanonicalizedResource(buf *bytes.Buffer, req http.Request, virtualHost bool) {
// Save request URL.
requestURL := req.URL
// Get encoded URL path.
buf.WriteString(encodeURL2Path(&req, virtualHost))
if requestURL.RawQuery != "" {
var n int
vals, _ := url.ParseQuery(requestURL.RawQuery)
// Verify if any sub resource queries are present, if yes
// canonicallize them.
for _, resource := range resourceList {
if vv, ok := vals[resource]; ok && len(vv) > 0 {
n++
// First element
switch n {
case 1:
buf.WriteByte('?')
// The rest
default:
buf.WriteByte('&')
}
buf.WriteString(resource)
// Request parameters
if len(vv[0]) > 0 {
buf.WriteByte('=')
buf.WriteString(vv[0])
}
}
}
}
}

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