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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// Package user provides a client for App Engine's user authentication service.
package user // import "google.golang.org/appengine/user"
import (
"strings"
"github.com/golang/protobuf/proto"
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
pb "google.golang.org/appengine/internal/user"
)
// User represents a user of the application.
type User struct {
Email string
AuthDomain string
Admin bool
// ID is the unique permanent ID of the user.
// It is populated if the Email is associated
// with a Google account, or empty otherwise.
ID string
// ClientID is the ID of the pre-registered client so its identity can be verified.
// See https://developers.google.com/console/help/#generatingoauth2 for more information.
ClientID string
FederatedIdentity string
FederatedProvider string
}
// String returns a displayable name for the user.
func (u *User) String() string {
if u.AuthDomain != "" && strings.HasSuffix(u.Email, "@"+u.AuthDomain) {
return u.Email[:len(u.Email)-len("@"+u.AuthDomain)]
}
if u.FederatedIdentity != "" {
return u.FederatedIdentity
}
return u.Email
}
// LoginURL returns a URL that, when visited, prompts the user to sign in,
// then redirects the user to the URL specified by dest.
func LoginURL(c context.Context, dest string) (string, error) {
return LoginURLFederated(c, dest, "")
}
// LoginURLFederated is like LoginURL but accepts a user's OpenID identifier.
func LoginURLFederated(c context.Context, dest, identity string) (string, error) {
req := &pb.CreateLoginURLRequest{
DestinationUrl: proto.String(dest),
}
if identity != "" {
req.FederatedIdentity = proto.String(identity)
}
res := &pb.CreateLoginURLResponse{}
if err := internal.Call(c, "user", "CreateLoginURL", req, res); err != nil {
return "", err
}
return *res.LoginUrl, nil
}
// LogoutURL returns a URL that, when visited, signs the user out,
// then redirects the user to the URL specified by dest.
func LogoutURL(c context.Context, dest string) (string, error) {
req := &pb.CreateLogoutURLRequest{
DestinationUrl: proto.String(dest),
}
res := &pb.CreateLogoutURLResponse{}
if err := internal.Call(c, "user", "CreateLogoutURL", req, res); err != nil {
return "", err
}
return *res.LogoutUrl, nil
}
func init() {
internal.RegisterErrorCodeMap("user", pb.UserServiceError_ErrorCode_name)
}
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