mirror of https://github.com/tidwall/tile38.git
95 lines
2.5 KiB
Go
95 lines
2.5 KiB
Go
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/*
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* Copyright 2018 The NATS Authors
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package jwt
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import (
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"errors"
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"github.com/nats-io/nkeys"
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)
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// Server defines the custom part of a server jwt
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type Server struct {
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Permissions
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Cluster string `json:"cluster,omitempty"`
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}
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// Validate checks the cluster and permissions for a server JWT
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func (s *Server) Validate(vr *ValidationResults) {
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if s.Cluster == "" {
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vr.AddError("servers can't contain an empty cluster")
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}
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}
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// ServerClaims defines the data in a server JWT
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type ServerClaims struct {
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ClaimsData
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Server `json:"nats,omitempty"`
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}
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// NewServerClaims creates a new server JWT with the specified subject/public key
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func NewServerClaims(subject string) *ServerClaims {
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if subject == "" {
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return nil
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}
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c := &ServerClaims{}
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c.Subject = subject
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return c
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}
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// Encode tries to turn the server claims into a JWT string
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func (s *ServerClaims) Encode(pair nkeys.KeyPair) (string, error) {
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if !nkeys.IsValidPublicServerKey(s.Subject) {
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return "", errors.New("expected subject to be a server public key")
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}
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s.ClaimsData.Type = ServerClaim
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return s.ClaimsData.Encode(pair, s)
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}
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// DecodeServerClaims tries to parse server claims from a JWT string
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func DecodeServerClaims(token string) (*ServerClaims, error) {
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v := ServerClaims{}
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if err := Decode(token, &v); err != nil {
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return nil, err
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}
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return &v, nil
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}
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func (s *ServerClaims) String() string {
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return s.ClaimsData.String(s)
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}
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// Payload returns the server specific data
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func (s *ServerClaims) Payload() interface{} {
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return &s.Server
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}
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// Validate checks the generic and server data in the server claims
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func (s *ServerClaims) Validate(vr *ValidationResults) {
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s.ClaimsData.Validate(vr)
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s.Server.Validate(vr)
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}
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// ExpectedPrefixes defines the types that can encode a server JWT, operator or cluster
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func (s *ServerClaims) ExpectedPrefixes() []nkeys.PrefixByte {
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return []nkeys.PrefixByte{nkeys.PrefixByteOperator, nkeys.PrefixByteCluster}
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}
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// Claims returns the generic data
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func (s *ServerClaims) Claims() *ClaimsData {
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return &s.ClaimsData
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}
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