forked from Mirrors/oauth2
53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
// Copyright 2014 The oauth2 Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package oauth2
|
|
|
|
import (
|
|
"encoding/json"
|
|
"io/ioutil"
|
|
)
|
|
|
|
// Cache represents a token cacher.
|
|
type Cache interface {
|
|
// Read reads a cache token from the specified file.
|
|
Read() (token *Token)
|
|
// Write writes a token to the specified file.
|
|
Write(token *Token)
|
|
}
|
|
|
|
// NewFileCache creates a new file cache.
|
|
func NewFileCache(filename string) *FileCache {
|
|
return &FileCache{filename: filename}
|
|
}
|
|
|
|
// FileCache represents a file based token cacher.
|
|
type FileCache struct {
|
|
filename string
|
|
ErrorHandlerFunc func(error)
|
|
}
|
|
|
|
// Read reads a cache token from the specified file.
|
|
func (f *FileCache) Read() (token *Token) {
|
|
data, err := ioutil.ReadFile(f.filename)
|
|
if err == nil {
|
|
err = json.Unmarshal(data, token)
|
|
}
|
|
if f.ErrorHandlerFunc != nil {
|
|
f.ErrorHandlerFunc(err)
|
|
}
|
|
return
|
|
}
|
|
|
|
// Write writes a token to the specified file.
|
|
func (f *FileCache) Write(token *Token) {
|
|
data, err := json.Marshal(token)
|
|
if err == nil {
|
|
err = ioutil.WriteFile(f.filename, data, 0644)
|
|
}
|
|
if f.ErrorHandlerFunc != nil {
|
|
f.ErrorHandlerFunc(err)
|
|
}
|
|
}
|