mirror of https://github.com/grpc/grpc-go.git
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
/*
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*
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* Copyright 2023 gRPC authors.
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*
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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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*/
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// Package token implements an example of authorization token encoding/decoding
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// that can be used in RPC headers.
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package token
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import (
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"encoding/base64"
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"encoding/json"
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)
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// Token is a mock authorization token sent by the client as part of the RPC headers,
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// and used by the server for authorization against a predefined policy.
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type Token struct {
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// Secret is used by the server to authenticate the user
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Secret string `json:"secret"`
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// Username is used by the server to assign roles in the metadata for authorization
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Username string `json:"username"`
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}
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// Encode returns a base64 encoded version of the JSON representation of token.
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func (t *Token) Encode() (string, error) {
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barr, err := json.Marshal(t)
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if err != nil {
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return "", err
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}
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s := base64.StdEncoding.EncodeToString(barr)
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return s, nil
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}
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// Decode updates the internals of Token using the passed in base64
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// encoded version of the JSON representation of token.
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func (t *Token) Decode(s string) error {
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barr, err := base64.StdEncoding.DecodeString(s)
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if err != nil {
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return err
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}
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return json.Unmarshal(barr, t)
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}
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