Add appengine/gcloud/mustache dependencies.

pkg/appengine/lib/src/api_impl/users_impl.dart

+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library users_impl;
+
+import 'dart:async';
+
+import 'package:appengine/api/users.dart';
+
+import '../protobuf_api/user_service.dart';
+import '../protobuf_api/rpc/rpc_service.dart';
+import '../protobuf_api/internal/user_service.pb.dart' as pb;
+import '../server/http_wrapper.dart';
+
+class UserRpcImpl extends UserService {
+  static String _HTTP_HEADER_AUTH_DOMAIN = 'x-appengine-auth-domain';
+  static String _HTTP_HEADER_USER_EMAIL = 'x-appengine-user-email';
+  static String _HTTP_HEADER_USER_ID = 'x-appengine-user-id';
+  static String _HTTP_HEADER_USER_IS_ADMIN = 'x-appengine-user-is-admin';
+
+  final UserServiceClientRPCStub _clientRPCStub;
+  User _currentUser;
+
+  UserRpcImpl(
+      RPCService rpcService, String ticket, AppengineHttpRequest request)
+      : _clientRPCStub = new UserServiceClientRPCStub(rpcService, ticket) {
+    var userEmail = request.headers.value(_HTTP_HEADER_USER_EMAIL);
+    var userId = request.headers.value(_HTTP_HEADER_USER_ID);
+    var userIsAdmin = request.headers.value(_HTTP_HEADER_USER_IS_ADMIN) == '1';
+    var authDomain = request.headers.value(_HTTP_HEADER_AUTH_DOMAIN);
+
+    if (userEmail != null && !userEmail.isEmpty) {
+      _currentUser = new User(
+          authDomain: authDomain,
+          email: userEmail, id: userId,
+          isAdmin: userIsAdmin);
+    }
+  }
+
+  User get currentUser => _currentUser;
+
+  Future<String> createLoginUrl(String destination) {
+    var request = new pb.CreateLoginURLRequest();
+    request.destinationUrl = destination;
+    return _clientRPCStub.CreateLoginURL(request)
+        .then((response) => response.loginUrl);
+  }
+
+  Future<String> createLogoutUrl(String destination) {
+    var request = new pb.CreateLogoutURLRequest();
+    request.destinationUrl = destination;
+    return _clientRPCStub.CreateLogoutURL(request)
+        .then((response) => response.logoutUrl);
+  }
+}