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tokenfile.go
61 lines (54 loc) · 1.18 KB
/
tokenfile.go
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package basecamp3
import (
"context"
"encoding/json"
"log"
"net/http"
"os"
"golang.org/x/oauth2"
)
type tokenFile struct {
context.Context
filename string
}
func FileBasedTokenPersistence(filename string) func(w http.ResponseWriter, r *http.Request) ContextWithTokenPersistence {
return func(w http.ResponseWriter, r *http.Request) ContextWithTokenPersistence {
return TokenFile(context.Background(), filename)
}
}
func TokenFile(ctx context.Context, filename string) ContextWithTokenPersistence {
return &tokenFile{
Context: ctx,
filename: filename,
}
}
func (c *tokenFile) Token() (*oauth2.Token, error) {
data, err := os.ReadFile(c.filename)
if err == os.ErrNotExist {
return nil, nil
}
if err != nil {
return nil, err
}
t := &oauth2.Token{}
err = json.Unmarshal(data, t)
if err != nil {
return nil, err
}
return t, nil
}
func (c *tokenFile) SetToken(t *oauth2.Token) {
if t == nil {
os.Remove(c.filename)
} else {
data, err := json.Marshal(t)
if err == nil {
err = os.WriteFile(c.filename, data, 0666)
if err != nil {
log.Println(err)
}
} else {
log.Println(err)
}
}
}