Initial QSfera import

Server/vendor/github.com/opencloud-eu/reva/v2/pkg/plugin/loader.go

@@ -0,0 +1,127 @@
+// Copyright 2018-2021 CERN
+//
+// 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.
+//
+// In applying this license, CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+package plugin
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+
+	"github.com/hashicorp/go-hclog"
+	"github.com/hashicorp/go-plugin"
+	"github.com/opencloud-eu/reva/v2/pkg/errtypes"
+)
+
+// RevaPlugin represents the runtime plugin
+type RevaPlugin struct {
+	Plugin interface{}
+	Client *plugin.Client
+}
+
+const dirname = "/var/tmp/reva"
+
+var isAlphaNum = regexp.MustCompile(`^[A-Za-z0-9]+$`).MatchString
+
+// Kill kills the plugin process
+func (plug *RevaPlugin) Kill() {
+	plug.Client.Kill()
+}
+
+var handshake = plugin.HandshakeConfig{
+	ProtocolVersion:  1,
+	MagicCookieKey:   "BASIC_PLUGIN",
+	MagicCookieValue: "hello",
+}
+
+func compile(pluginType string, path string) (string, error) {
+	var errb bytes.Buffer
+	binaryPath := filepath.Join(dirname, "bin", pluginType, filepath.Base(path))
+	command := fmt.Sprintf("go build -o %s %s", binaryPath, path)
+	cmd := exec.Command("bash", "-c", command)
+	cmd.Stderr = &errb
+	err := cmd.Run()
+	if err != nil {
+		return "", fmt.Errorf("%v: %w", errb.String(), err)
+	}
+	return binaryPath, nil
+}
+
+// checkDir checks and compiles plugin if the configuration points to a directory.
+func checkDirAndCompile(pluginType, driver string) (string, error) {
+	bin := driver
+	file, err := os.Stat(driver)
+	if err != nil {
+		return "", err
+	}
+	// compile if we point to a package
+	if file.IsDir() {
+		bin, err = compile(pluginType, driver)
+		if err != nil {
+			return "", err
+		}
+	}
+	return bin, nil
+}
+
+// Load loads the plugin using the hashicorp go-plugin system
+func Load(pluginType, driver string) (*RevaPlugin, error) {
+	if isAlphaNum(driver) {
+		return nil, errtypes.NotFound(driver)
+	}
+	bin, err := checkDirAndCompile(pluginType, driver)
+	if err != nil {
+		return nil, err
+	}
+
+	logger := hclog.New(&hclog.LoggerOptions{
+		Name:   "plugin",
+		Output: os.Stdout,
+		Level:  hclog.Trace,
+	})
+
+	client := plugin.NewClient(&plugin.ClientConfig{
+		HandshakeConfig: handshake,
+		Plugins:         PluginMap,
+		Cmd:             exec.Command(bin),
+		AllowedProtocols: []plugin.Protocol{
+			plugin.ProtocolNetRPC,
+		},
+		Logger: logger,
+	})
+
+	rpcClient, err := client.Client()
+	if err != nil {
+		return nil, err
+	}
+
+	raw, err := rpcClient.Dispense(pluginType)
+	if err != nil {
+		return nil, err
+	}
+
+	revaPlugin := &RevaPlugin{
+		Plugin: raw,
+		Client: client,
+	}
+
+	return revaPlugin, nil
+}

Server/vendor/github.com/opencloud-eu/reva/v2/pkg/plugin/plugin.go

@@ -0,0 +1,24 @@
+// Copyright 2018-2021 CERN
+//
+// 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.
+//
+// In applying this license, CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+package plugin
+
+// Plugin is the interface used to configure plugins
+type Plugin interface {
+	Configure(m map[string]interface{}) error
+}

Server/vendor/github.com/opencloud-eu/reva/v2/pkg/plugin/registry.go

@@ -0,0 +1,29 @@
+// Copyright 2018-2021 CERN
+//
+// 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.
+//
+// In applying this license, CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+package plugin
+
+import "github.com/hashicorp/go-plugin"
+
+// PluginMap is a map containing all the plugins
+var PluginMap = map[string]plugin.Plugin{}
+
+// Register registers the plugin
+func Register(name string, plugin plugin.Plugin) {
+	PluginMap[name] = plugin
+}