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1 // Copyright (c) 2011 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_COMMON_NET_GAIA_OAUTH2_ACCESS_TOKEN_FETCHER_H_ | |
6 #define CHROME_COMMON_NET_GAIA_OAUTH2_ACCESS_TOKEN_FETCHER_H_ | |
7 #pragma once | |
8 | |
9 #include <string> | |
10 | |
11 #include "base/gtest_prod_util.h" | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "chrome/common/net/gaia/oauth2_access_token_consumer.h" | |
14 #include "content/public/common/url_fetcher.h" | |
15 #include "content/public/common/url_fetcher_delegate.h" | |
16 #include "googleurl/src/gurl.h" | |
17 | |
18 class OAuth2AccessTokenFetcherTest; | |
19 | |
20 namespace net { | |
21 class URLRequestContextGetter; | |
22 class URLRequestStatus; | |
23 } | |
24 | |
25 // Abstracts the details to get OAuth2 access token token from | |
26 // OAuth2 refresh token. | |
27 // | |
28 // This class should be used on a single thread, but it can be whichever thread | |
29 // that you like. | |
30 // Also, do not reuse the same instance. Once Start() is called, the instance | |
31 // should not be reused. | |
32 // | |
33 // Usage: | |
34 // * Create an instance with a consumer. | |
35 // * Call Start() | |
36 // * The consumer passed in the constructor will be called on the same | |
37 // thread Start was called with the results. | |
38 // | |
39 // This class can handle one request at a time. To parallelize requests, | |
40 // create multiple instances. | |
41 class OAuth2AccessTokenFetcher : public content::URLFetcherDelegate { | |
42 public: | |
43 OAuth2AccessTokenFetcher(OAuth2AccessTokenConsumer* consumer, | |
44 net::URLRequestContextGetter* getter, | |
45 const std::string& source); | |
46 virtual ~OAuth2AccessTokenFetcher(); | |
47 | |
48 void Start(const std::string& refresh_token); | |
49 | |
50 void CancelRequest(); | |
51 | |
52 // Implementation of content::URLFetcherDelegate | |
53 virtual void OnURLFetchComplete(const content::URLFetcher* source); | |
Rick Campbell
2011/11/22 21:32:57
Add OVERRIDE directive
Munjal (Google)
2011/11/22 22:05:58
Done.
| |
54 | |
55 private: | |
56 enum State { | |
57 INITIAL, | |
58 GET_ACCESS_TOKEN_STARTED, | |
59 GET_ACCESS_TOKEN_DONE, | |
60 ERROR_STATE, | |
61 }; | |
62 | |
63 // Helper methods for the flow. | |
64 void StartGetAccessToken(); | |
65 void EndGetAccessToken(const content::URLFetcher* source); | |
66 | |
67 // Helper mehtods for reporting back results. | |
68 void ReportSuccess(const std::string& access_token); | |
69 void ReportFailure(GoogleServiceAuthError error); | |
70 | |
71 // Other helpers. | |
72 static GURL MakeGetAccessTokenUrl(); | |
73 static std::string MakeGetAccessTokenBody(const std::string& refresh_token); | |
74 static bool ParseGetAccessTokenResponse(const content::URLFetcher* source, | |
75 std::string* access_token); | |
76 | |
77 // State that is set during construction. | |
78 OAuth2AccessTokenConsumer* const consumer_; | |
79 net::URLRequestContextGetter* const getter_; | |
80 std::string source_; | |
81 State state_; | |
82 | |
83 // While a fetch is in progress. | |
84 scoped_ptr<content::URLFetcher> fetcher_; | |
85 std::string refresh_token_; | |
86 | |
87 friend class OAuth2AccessTokenFetcherTest; | |
88 FRIEND_TEST_ALL_PREFIXES(OAuth2AccessTokenFetcherTest, | |
89 ParseGetAccessTokenResponse); | |
90 | |
91 DISALLOW_COPY_AND_ASSIGN(OAuth2AccessTokenFetcher); | |
92 }; | |
93 | |
94 #endif // CHROME_COMMON_NET_GAIA_OAUTH2_ACCESS_TOKEN_FETCHER_H_ | |
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