/
token.go
97 lines (84 loc) · 3.05 KB
/
token.go
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 auth
import (
"encoding/json"
"fmt"
"net/http"
"os"
"strings"
"github.com/pkg/errors"
)
const (
tokenPrefix = "token:"
filePrefix = "file:"
TokenPluginName = "org.apache.pulsar.client.impl.auth.AuthenticationToken"
TokePluginShortName = "token"
)
type Token struct {
Token string `json:"token"`
}
type TokenAuthProvider struct {
T http.RoundTripper
token string
}
// NewAuthenticationToken return a interface of Provider with a string token.
func NewAuthenticationToken(token string, transport http.RoundTripper) (*TokenAuthProvider, error) {
if len(token) == 0 {
return nil, errors.New("No token provided")
}
return &TokenAuthProvider{token: token, T: transport}, nil
}
// NewAuthenticationTokenFromFile return a interface of a Provider with a string token file path.
func NewAuthenticationTokenFromFile(tokenFilePath string, transport http.RoundTripper) (*TokenAuthProvider, error) {
data, err := os.ReadFile(tokenFilePath)
if err != nil {
return nil, err
}
token := strings.Trim(string(data), " \n")
return NewAuthenticationToken(token, transport)
}
func NewAuthenticationTokenFromAuthParams(encodedAuthParam string,
transport http.RoundTripper) (*TokenAuthProvider, error) {
var tokenAuthProvider *TokenAuthProvider
var err error
var tokenJSON Token
err = json.Unmarshal([]byte(encodedAuthParam), &tokenJSON)
if err != nil {
switch {
case strings.HasPrefix(encodedAuthParam, tokenPrefix):
tokenAuthProvider, err = NewAuthenticationToken(strings.TrimPrefix(encodedAuthParam, tokenPrefix), transport)
case strings.HasPrefix(encodedAuthParam, filePrefix):
tokenAuthProvider, err = NewAuthenticationTokenFromFile(strings.TrimPrefix(encodedAuthParam, filePrefix), transport)
default:
tokenAuthProvider, err = NewAuthenticationToken(encodedAuthParam, transport)
}
} else {
tokenAuthProvider, err = NewAuthenticationToken(tokenJSON.Token, transport)
}
return tokenAuthProvider, err
}
func (p *TokenAuthProvider) RoundTrip(req *http.Request) (*http.Response, error) {
req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", p.token))
return p.T.RoundTrip(req)
}
func (p *TokenAuthProvider) Transport() http.RoundTripper {
return p.T
}
func (p *TokenAuthProvider) WithTransport(tripper http.RoundTripper) {
p.T = tripper
}