remoting/host/setup/gaia_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/gaia_oauth_client.h"
   6
   7 #include "base/callback_helpers.h"
   8 #include "base/logging.h"
   9
  10 namespace {
  11 const int kMaxGaiaRetries = 3;
  12 }  // namespace
  13
  14 namespace remoting {
  15
  16 GaiaOAuthClient::GaiaOAuthClient(
  17     scoped_refptr<net::URLRequestContextGetter> url_request_context_getter)
  18     : gaia_oauth_client_(url_request_context_getter.get()) {
  19 }
  20
  21 GaiaOAuthClient::~GaiaOAuthClient() {
  22 }
  23
  24 void GaiaOAuthClient::GetCredentialsFromAuthCode(
  25     const gaia::OAuthClientInfo& oauth_client_info,
  26     const std::string& auth_code,
  27     bool need_user_email,
  28     CompletionCallback on_done) {
  29   if (!on_done_.is_null()) {
  30     pending_requests_.push(
  31         Request(oauth_client_info, auth_code, need_user_email, on_done));
  32     return;
  33   }
  34
  35   need_user_email_ = need_user_email;
  36   on_done_ = on_done;
  37   // Map the authorization code to refresh and access tokens.
  38   gaia_oauth_client_.GetTokensFromAuthCode(oauth_client_info, auth_code,
  39                                            kMaxGaiaRetries, this);
  40 }
  41
  42 void GaiaOAuthClient::OnGetTokensResponse(const std::string& refresh_token,
  43                                           const std::string& access_token,
  44                                           int expires_in_seconds) {
  45   refresh_token_ = refresh_token;
  46   if (need_user_email_) {
  47     // Get the email corresponding to the access token.
  48     gaia_oauth_client_.GetUserEmail(access_token, kMaxGaiaRetries, this);
  49   } else {
  50     SendResponse("", refresh_token_);
  51   }
  52 }
  53
  54 void GaiaOAuthClient::OnRefreshTokenResponse(const std::string& access_token,
  55                                              int expires_in_seconds) {
  56   // We never request a refresh token, so this call is not expected.
  57   NOTREACHED();
  58 }
  59
  60 void GaiaOAuthClient::SendResponse(const std::string& user_email,
  61                                    const std::string& refresh_token) {
  62   base::ResetAndReturn(&on_done_).Run(user_email, refresh_token);
  63
  64   // Process the next request in the queue.
  65   if (pending_requests_.size()) {
  66     Request request = pending_requests_.front();
  67     pending_requests_.pop();
  68     // GetCredentialsFromAuthCode is asynchronous, so it's safe to call it here.
  69     GetCredentialsFromAuthCode(request.oauth_client_info, request.auth_code,
  70                                request.need_user_email, request.on_done);
  71   }
  72 }
  73
  74 void GaiaOAuthClient::OnGetUserEmailResponse(const std::string& user_email) {
  75   SendResponse(user_email, refresh_token_);
  76 }
  77
  78 void GaiaOAuthClient::OnOAuthError() {
  79   SendResponse("", "");
  80 }
  81
  82 void GaiaOAuthClient::OnNetworkError(int response_code) {
  83   SendResponse("", "");
  84 }
  85
  86 GaiaOAuthClient::Request::Request(
  87     const gaia::OAuthClientInfo& oauth_client_info,
  88     const std::string& auth_code,
  89     bool need_user_email,
  90     CompletionCallback on_done) {
  91   this->oauth_client_info = oauth_client_info;
  92   this->auth_code = auth_code;
  93   this->need_user_email = need_user_email;
  94   this->on_done = on_done;
  95 }
  96
  97 GaiaOAuthClient::Request::~Request() {
  98 }
  99
 100 }  // namespace remoting