8 "github.com/google/uuid"
9 legacy_context "golang.org/x/net/context"
11 "google.golang.org/appengine/datastore"
12 "google.golang.org/appengine/log"
24 func NewUser(ctx context.Context, email string) (*User, error) {
25 err := datastore.RunInTransaction(ctx, func(ctx legacy_context.Context) error {
26 key := datastore.NewKey(ctx, "User", email, 0, nil)
27 if err := datastore.Get(ctx, key, &dbUser{}); err != datastore.ErrNoSuchEntity {
28 return err // may be nil
31 _, err := datastore.Put(ctx, key, &dbUser{
32 ID: uuid.New().String(),
42 key: datastore.NewKey(ctx, "User", email, 0, nil),
46 func UserByID(ctx context.Context, id string) (*User, error) {
47 q := datastore.NewQuery("User").Filter("ID=", id).KeysOnly()
48 keys, err := q.GetAll(ctx, nil)
50 return nil, fmt.Errorf("datastore.Query.GetAll(): %v", err)
53 return nil, fmt.Errorf("len(keys) = %d, want 1", len(keys))
57 Email: keys[0].StringID(),
62 func (u *User) ID(ctx context.Context) (string, error) {
64 if err := datastore.Get(ctx, u.key, &db); err != nil {
71 func (u *User) Token(ctx context.Context, svc string) (*oauth2.Token, error) {
72 key := datastore.NewKey(ctx, "Token", svc, 0, u.key)
75 if err := datastore.Get(ctx, key, &tok); err != nil {
82 func (u *User) SetToken(ctx context.Context, svc string, tok *oauth2.Token) error {
83 key := datastore.NewKey(ctx, "Token", svc, 0, u.key)
84 _, err := datastore.Put(ctx, key, tok)
88 func (u *User) OAuthClient(ctx context.Context, svc string, cfg *oauth2.Config) (*http.Client, error) {
89 key := datastore.NewKey(ctx, "Token", svc, 0, u.key)
92 if err := datastore.Get(ctx, key, &tok); err != nil {
96 src := cfg.TokenSource(ctx, &tok)
97 return oauth2.NewClient(ctx, &persistingTokenSource{
105 type persistingTokenSource struct {
108 src oauth2.TokenSource
112 func (s *persistingTokenSource) Token() (*oauth2.Token, error) {
113 tok, err := s.src.Token()
118 if s.t.RefreshToken != tok.RefreshToken {
119 if _, err := datastore.Put(s.ctx, s.key, tok); err != nil {
120 log.Errorf(s.ctx, "persisting OAuth token in datastore failed: %v", err)