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