chrome/browser/chromeos/login/signin/oauth2_token_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 CHROME_BROWSER_CHROMEOS_LOGIN_SIGNIN_OAUTH2_TOKEN_FETCHER_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SIGNIN_OAUTH2_TOKEN_FETCHER_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/callback_forward.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "google_apis/gaia/gaia_auth_consumer.h"
  15 #include "google_apis/gaia/gaia_auth_fetcher.h"
  16
  17 namespace net {
  18 class URLRequestContextGetter;
  19 }
  20
  21 namespace chromeos {
  22
  23 // OAuth2TokenFetcher is used to convert authenticated cookie jar from the
  24 // authentication profile into OAuth2 tokens and GAIA credentials that will be
  25 // used to kick off other token retrieval tasks.
  26 class OAuth2TokenFetcher : public base::SupportsWeakPtr<OAuth2TokenFetcher>,
  27                            public GaiaAuthConsumer {
  28  public:
  29   class Delegate {
  30    public:
  31     virtual ~Delegate() {}
  32     virtual void OnOAuth2TokensAvailable(
  33         const GaiaAuthConsumer::ClientOAuthResult& oauth2_tokens) = 0;
  34     virtual void OnOAuth2TokensFetchFailed() = 0;
  35   };
  36
  37   OAuth2TokenFetcher(OAuth2TokenFetcher::Delegate* delegate,
  38                      net::URLRequestContextGetter* context_getter);
  39   ~OAuth2TokenFetcher() override;
  40
  41   void StartExchangeFromCookies(const std::string& session_index,
  42                                 const std::string& signin_scoped_device_id);
  43   void StartExchangeFromAuthCode(const std::string& auth_code,
  44                                  const std::string& signin_scoped_device_id);
  45
  46  private:
  47   // Decides how to proceed on GAIA |error|. If the error looks temporary,
  48   // retries |task| until max retry count is reached.
  49   // If retry count runs out, or error condition is unrecoverable, it runs
  50   // |error_handler|.
  51   void RetryOnError(const GoogleServiceAuthError& error,
  52                     const base::Closure& task,
  53                     const base::Closure& error_handler);
  54
  55   // GaiaAuthConsumer overrides.
  56   void OnClientOAuthSuccess(
  57       const GaiaAuthConsumer::ClientOAuthResult& result) override;
  58   void OnClientOAuthFailure(const GoogleServiceAuthError& error) override;
  59
  60   OAuth2TokenFetcher::Delegate* delegate_;
  61   GaiaAuthConsumer::ClientOAuthResult oauth_tokens_;
  62   GaiaAuthFetcher auth_fetcher_;
  63
  64   // The retry counter. Increment this only when failure happened.
  65   int retry_count_;
  66   std::string session_index_;
  67   std::string signin_scoped_device_id_;
  68   std::string auth_code_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(OAuth2TokenFetcher);
  71 };
  72
  73 }  // namespace chromeos
  74
  75 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SIGNIN_OAUTH2_TOKEN_FETCHER_H_