remoting/host/setup/oauth_client.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "remoting/host/setup/oauth_client.h"
   6
   7 namespace {
   8 const int kMaxGaiaRetries = 3;
   9 }  // namespace
  10
  11 namespace remoting {
  12
  13 OAuthClient::OAuthClient(
  14     scoped_refptr<net::URLRequestContextGetter> url_request_context_getter)
  15     : gaia_oauth_client_(url_request_context_getter) {
  16 }
  17
  18 OAuthClient::~OAuthClient() {
  19 }
  20
  21 void OAuthClient::GetCredentialsFromAuthCode(
  22     const gaia::OAuthClientInfo& oauth_client_info,
  23     const std::string& auth_code,
  24     CompletionCallback on_done) {
  25
  26   if (!on_done_.is_null()) {
  27     pending_requests_.push(Request(oauth_client_info, auth_code, on_done));
  28     return;
  29   }
  30
  31   on_done_ = on_done;
  32   // Map the authorization code to refresh and access tokens.
  33   gaia_oauth_client_.GetTokensFromAuthCode(oauth_client_info, auth_code,
  34                                            kMaxGaiaRetries, this);
  35 }
  36
  37 void OAuthClient::OnGetTokensResponse(
  38     const std::string& refresh_token,
  39     const std::string& access_token,
  40     int expires_in_seconds) {
  41   refresh_token_ = refresh_token;
  42   // Get the email corresponding to the access token.
  43   gaia_oauth_client_.GetUserEmail(access_token, kMaxGaiaRetries, this);
  44 }
  45
  46 void OAuthClient::OnRefreshTokenResponse(
  47     const std::string& access_token,
  48     int expires_in_seconds) {
  49   // We never request a refresh token, so this call is not expected.
  50   NOTREACHED();
  51 }
  52
  53 void OAuthClient::SendResponse(const std::string& user_email,
  54                                const std::string& refresh_token) {
  55   CompletionCallback on_done = on_done_;
  56   on_done_.Reset();
  57   on_done.Run(user_email, refresh_token);
  58
  59   // Process the next request in the queue.
  60   if (pending_requests_.size()) {
  61     Request request = pending_requests_.front();
  62     pending_requests_.pop();
  63     // GetCredentialsFromAuthCode is asynchronous, so it's safe to call it here.
  64     GetCredentialsFromAuthCode(
  65         request.oauth_client_info, request.auth_code, request.on_done);
  66   }
  67 }
  68
  69 void OAuthClient::OnGetUserEmailResponse(const std::string& user_email) {
  70   SendResponse(user_email, refresh_token_);
  71 }
  72
  73 void OAuthClient::OnOAuthError() {
  74   SendResponse("", "");
  75 }
  76
  77 void OAuthClient::OnNetworkError(int response_code) {
  78   SendResponse("", "");
  79 }
  80
  81 OAuthClient::Request::Request(
  82     const gaia::OAuthClientInfo& oauth_client_info,
  83     const std::string& auth_code,
  84     CompletionCallback on_done) {
  85   this->oauth_client_info = oauth_client_info;
  86   this->auth_code = auth_code;
  87   this->on_done = on_done;
  88 }
  89
  90 OAuthClient::Request::~Request() {
  91 }
  92
  93 }  // namespace remoting