google_apis/gaia/ubertoken_fetcher.h

   1 // Copyright 2014 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 GOOGLE_APIS_GAIA_UBERTOKEN_FETCHER_H_
   6 #define GOOGLE_APIS_GAIA_UBERTOKEN_FETCHER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "google_apis/gaia/gaia_auth_consumer.h"
  10 #include "google_apis/gaia/oauth2_token_service.h"
  11
  12 // Allow to retrieves an uber-auth token for the user. This class uses the
  13 // |OAuth2TokenService| and considers that the user is already logged in. It
  14 // will use the OAuth2 access token to generate the uber-auth token.
  15 //
  16 // This class should be used on a single thread, but it can be whichever thread
  17 // that you like.
  18 //
  19 // This class can handle one request at a time.
  20
  21 class GaiaAuthFetcher;
  22 class GoogleServiceAuthError;
  23
  24 namespace net {
  25 class URLRequestContextGetter;
  26 }
  27
  28 // Callback for the |UbertokenFetcher| class.
  29 class UbertokenConsumer {
  30  public:
  31   UbertokenConsumer() {}
  32   virtual ~UbertokenConsumer() {}
  33   virtual void OnUbertokenSuccess(const std::string& token) {}
  34   virtual void OnUbertokenFailure(const GoogleServiceAuthError& error) {}
  35 };
  36
  37 // Allows to retrieve an uber-auth token.
  38 class UbertokenFetcher : public GaiaAuthConsumer,
  39                          public OAuth2TokenService::Consumer {
  40  public:
  41   UbertokenFetcher(OAuth2TokenService* token_service,
  42                    UbertokenConsumer* consumer,
  43                    net::URLRequestContextGetter* request_context);
  44   virtual ~UbertokenFetcher();
  45
  46   // Start fetching the token for |account_id|.
  47   virtual void StartFetchingToken(const std::string& account_id);
  48
  49   // Overriden from GaiaAuthConsumer
  50   virtual void OnUberAuthTokenSuccess(const std::string& token) OVERRIDE;
  51   virtual void OnUberAuthTokenFailure(
  52       const GoogleServiceAuthError& error) OVERRIDE;
  53
  54   // Overriden from OAuth2TokenService::Consumer:
  55   virtual void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
  56                                  const std::string& access_token,
  57                                  const base::Time& expiration_time) OVERRIDE;
  58   virtual void OnGetTokenFailure(const OAuth2TokenService::Request* request,
  59                                  const GoogleServiceAuthError& error) OVERRIDE;
  60
  61  private:
  62   OAuth2TokenService* token_service_;
  63   UbertokenConsumer* consumer_;
  64   net::URLRequestContextGetter* request_context_;
  65   scoped_ptr<GaiaAuthFetcher> gaia_auth_fetcher_;
  66   scoped_ptr<OAuth2TokenService::Request> access_token_request_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(UbertokenFetcher);
  69 };
  70
  71 #endif  // GOOGLE_APIS_GAIA_UBERTOKEN_FETCHER_H_