oauth2_token_fetcher.h revision cedac228d2dd51db4b79ea1e72c7f249408ee061 
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
17namespace net {
18class URLRequestContextGetter;
19}
20
21namespace 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.
26class 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  virtual ~OAuth2TokenFetcher();
40
41  void StartExchangeFromCookies(const std::string& session_index);
42  void StartExchangeFromAuthCode(const std::string& auth_code);
43
44 private:
45  // Decides how to proceed on GAIA |error|. If the error looks temporary,
46  // retries |task| until max retry count is reached.
47  // If retry count runs out, or error condition is unrecoverable, it runs
48  // |error_handler|.
49  void RetryOnError(const GoogleServiceAuthError& error,
50                    const base::Closure& task,
51                    const base::Closure& error_handler);
52
53  // GaiaAuthConsumer overrides.
54  virtual void OnClientOAuthSuccess(
55      const GaiaAuthConsumer::ClientOAuthResult& result) OVERRIDE;
56  virtual void OnClientOAuthFailure(
57      const GoogleServiceAuthError& error) OVERRIDE;
58
59  OAuth2TokenFetcher::Delegate* delegate_;
60  GaiaAuthConsumer::ClientOAuthResult oauth_tokens_;
61  GaiaAuthFetcher auth_fetcher_;
62
63  // The retry counter. Increment this only when failure happened.
64  int retry_count_;
65  std::string session_index_;
66  std::string auth_code_;
67
68  DISALLOW_COPY_AND_ASSIGN(OAuth2TokenFetcher);
69};
70
71}  // namespace chromeos
72
73#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SIGNIN_OAUTH2_TOKEN_FETCHER_H_
74