remoting/host/setup/gaia_oauth_client.h

   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 #ifndef REMOTING_HOST_SETUP_GAIA_OAUTH_CLIENT_H_
   6 #define REMOTING_HOST_SETUP_GAIA_OAUTH_CLIENT_H_
   7
   8 #include <queue>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "google_apis/gaia/gaia_oauth_client.h"
  12 #include "net/url_request/url_request_context_getter.h"
  13
  14 #include "remoting/host/setup/oauth_client.h"
  15
  16 namespace net {
  17 class URLRequestContext;
  18 }
  19
  20 namespace remoting {
  21
  22 // A wrapper around gaia::GaiaOAuthClient that provides a more
  23 // convenient interface, with queueing of requests and a callback
  24 // rather than a delegate.
  25 class GaiaOAuthClient : public OAuthClient,
  26                         public gaia::GaiaOAuthClient::Delegate {
  27  public:
  28   GaiaOAuthClient(
  29       scoped_refptr<net::URLRequestContextGetter> url_request_context_getter);
  30
  31   ~GaiaOAuthClient() override;
  32
  33   // Redeems |auth_code| using |oauth_client_info| to obtain |refresh_token| and
  34   // |access_token|, then uses the userinfo endpoint to obtain |user_email|.
  35   // Calls CompletionCallback with |user_email| and |refresh_token| when done,
  36   // or with empty strings on error.
  37   // If a request is received while another one is  being processed, it is
  38   // enqueued and processed after the first one is finished.
  39   void GetCredentialsFromAuthCode(
  40       const gaia::OAuthClientInfo& oauth_client_info,
  41       const std::string& auth_code,
  42       bool need_user_email,
  43       CompletionCallback on_done) override;
  44
  45   // gaia::GaiaOAuthClient::Delegate
  46   void OnGetTokensResponse(const std::string& refresh_token,
  47                            const std::string& access_token,
  48                            int expires_in_seconds) override;
  49   void OnRefreshTokenResponse(const std::string& access_token,
  50                               int expires_in_seconds) override;
  51   void OnGetUserEmailResponse(const std::string& user_email) override;
  52
  53   void OnOAuthError() override;
  54   void OnNetworkError(int response_code) override;
  55
  56  private:
  57   struct Request {
  58     Request(const gaia::OAuthClientInfo& oauth_client_info,
  59             const std::string& auth_code,
  60             bool need_user_email,
  61             CompletionCallback on_done);
  62     virtual ~Request();
  63     gaia::OAuthClientInfo oauth_client_info;
  64     std::string auth_code;
  65     bool need_user_email;
  66     CompletionCallback on_done;
  67   };
  68
  69   void SendResponse(const std::string& user_email,
  70                     const std::string& refresh_token);
  71
  72   std::queue<Request> pending_requests_;
  73   gaia::GaiaOAuthClient gaia_oauth_client_;
  74   std::string refresh_token_;
  75   bool need_user_email_;
  76   CompletionCallback on_done_;
  77
  78   DISALLOW_COPY_AND_ASSIGN(GaiaOAuthClient);
  79 };
  80
  81 }  // namespace remoting
  82
  83 #endif  // REMOTING_HOST_SETUP_GAIA_OAUTH_CLIENT_H_