oauth2/google/appengine.go

48 строки
1.3 KiB
Go

// +build appengine
package google
import (
"strings"
"appengine"
"github.com/golang/oauth2"
)
// AppEngineConfig represents a configuration for an
// App Engine application's Google service account.
type AppEngineConfig struct {
context appengine.Context
scopes []string
}
// NewAppEngineConfig creates a new AppEngineConfig for the
// provided auth scopes.
func NewAppEngineConfig(context appengine.Context, scopes []string) *AppEngineConfig {
return &AppEngineConfig{context: context, scopes: scopes}
}
// NewTransport returns a transport that authorizes
// the requests with the application's service account.
func (c *AppEngineConfig) NewTransport() oauth2.Transport {
return oauth2.NewAuthorizedTransport(c, nil)
}
// NewTransport returns a token-caching transport that authorizes
// the requests with the application's service account.
func (c *AppEngineConfig) NewTransportWithCache(cache oauth2.Cache) (oauth2.Transport, error) {
return oauth2.NewAuthorizedTransportWithCache(c, cache)
}
// FetchToken fetches a new access token for the provided scopes.
func (c *AppEngineConfig) FetchToken(existing *oauth2.Token) (*oauth2.Token, error) {
token, expiry, err := appengine.AccessToken(c.context, strings.Join(c.scopes, " "))
if err != nil {
return nil, err
}
return &oauth2.Token{
AccessToken: token,
Expiry: expiry,
}, nil
}