/
filestorage.go
53 lines (46 loc) · 956 Bytes
/
filestorage.go
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package oauthstore
import (
"encoding/json"
"errors"
"os"
"sync"
"golang.org/x/oauth2"
)
// FileStorage satisfies our storage interface
type FileStorage struct {
Path string
mu sync.RWMutex
}
// GetToken retrieves a token from a file
func (f *FileStorage) GetToken() (*oauth2.Token, error) {
f.mu.RLock()
defer f.mu.RUnlock()
in, err := os.Open(f.Path)
if err != nil {
return nil, err
}
defer in.Close()
var t *oauth2.Token
data := json.NewDecoder(in)
return t, data.Decode(&t)
}
// SetToken creates, truncates, then stores a token
// in a file
func (f *FileStorage) SetToken(t *oauth2.Token) error {
if t == nil || !t.Valid() {
return errors.New("bad token")
}
f.mu.Lock()
defer f.mu.Unlock()
out, err := os.OpenFile(f.Path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0755)
if err != nil {
return err
}
defer out.Close()
data, err := json.Marshal(&t)
if err != nil {
return err
}
_, err = out.Write(data)
return err
}