Initial QSfera import

Server/vendor/github.com/nats-io/jwt/v2/decoder_account.go

@@ -0,0 +1,87 @@
+/*
+ * Copyright 2020 The NATS Authors
+ * 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 jwt
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type v1NatsAccount struct {
+	Imports Imports `json:"imports,omitempty"`
+	Exports Exports `json:"exports,omitempty"`
+	Limits  struct {
+		NatsLimits
+		AccountLimits
+	} `json:"limits,omitempty"`
+	SigningKeys StringList     `json:"signing_keys,omitempty"`
+	Revocations RevocationList `json:"revocations,omitempty"`
+}
+
+func loadAccount(data []byte, version int) (*AccountClaims, error) {
+	switch version {
+	case 1:
+		var v1a v1AccountClaims
+		if err := json.Unmarshal(data, &v1a); err != nil {
+			return nil, err
+		}
+		return v1a.Migrate()
+	case 2:
+		var v2a AccountClaims
+		v2a.SigningKeys = make(SigningKeys)
+		if err := json.Unmarshal(data, &v2a); err != nil {
+			return nil, err
+		}
+		if len(v2a.Limits.JetStreamTieredLimits) > 0 {
+			v2a.Limits.JetStreamLimits = JetStreamLimits{}
+		}
+		return &v2a, nil
+	default:
+		return nil, fmt.Errorf("library supports version %d or less - received %d", libVersion, version)
+	}
+}
+
+type v1AccountClaims struct {
+	ClaimsData
+	v1ClaimsDataDeletedFields
+	v1NatsAccount `json:"nats,omitempty"`
+}
+
+func (oa v1AccountClaims) Migrate() (*AccountClaims, error) {
+	return oa.migrateV1()
+}
+
+func (oa v1AccountClaims) migrateV1() (*AccountClaims, error) {
+	var a AccountClaims
+	// copy the base claim
+	a.ClaimsData = oa.ClaimsData
+	// move the moved fields
+	a.Account.Type = oa.v1ClaimsDataDeletedFields.Type
+	a.Account.Tags = oa.v1ClaimsDataDeletedFields.Tags
+	// copy the account data
+	a.Account.Imports = oa.v1NatsAccount.Imports
+	a.Account.Exports = oa.v1NatsAccount.Exports
+	a.Account.Limits.AccountLimits = oa.v1NatsAccount.Limits.AccountLimits
+	a.Account.Limits.NatsLimits = oa.v1NatsAccount.Limits.NatsLimits
+	a.Account.Limits.JetStreamLimits = JetStreamLimits{}
+	a.Account.SigningKeys = make(SigningKeys)
+	for _, v := range oa.SigningKeys {
+		a.Account.SigningKeys.Add(v)
+	}
+	a.Account.Revocations = oa.v1NatsAccount.Revocations
+	a.Version = 1
+	return &a, nil
+}