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1 // Copyright (c) 2012 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_GOOGLE_APIS_OPERATION_RUNNER_H_ | |
6 #define CHROME_BROWSER_GOOGLE_APIS_OPERATION_RUNNER_H_ | |
7 | |
8 #include <string> | |
9 #include <vector> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "base/memory/weak_ptr.h" | |
14 #include "chrome/browser/google_apis/gdata_errorcode.h" | |
15 | |
16 class Profile; | |
17 | |
18 namespace net { | |
19 class URLRequestContextGetter; | |
20 } | |
21 | |
22 namespace google_apis { | |
23 | |
24 class AuthenticatedRequestInterface; | |
25 class AuthService; | |
26 class OperationRegistry; | |
27 | |
28 // Helper class that runs AuthenticatedRequestInterface objects, handling | |
29 // retries and authentication. | |
30 class OperationRunner { | |
31 public: | |
32 // |url_request_context_getter| is used to perform authentication with | |
33 // AuthService. | |
34 // | |
35 // |scopes| specifies OAuth2 scopes. | |
36 // | |
37 // |custom_user_agent| will be used for the User-Agent header in HTTP | |
38 // requests issued through the operation runner if the value is not empty. | |
39 OperationRunner(Profile* profile, | |
40 net::URLRequestContextGetter* url_request_context_getter, | |
41 const std::vector<std::string>& scopes, | |
42 const std::string& custom_user_agent); | |
43 virtual ~OperationRunner(); | |
44 | |
45 AuthService* auth_service() { return auth_service_.get(); } | |
46 OperationRegistry* operation_registry() { | |
47 return operation_registry_.get(); | |
48 } | |
49 | |
50 // Prepares the object for use. | |
51 virtual void Initialize(); | |
52 | |
53 // Cancels all in-flight operations. | |
54 void CancelAll(); | |
55 | |
56 // Starts an operation implementing the AuthenticatedRequestInterface | |
57 // interface, and makes the operation retry upon authentication failures by | |
58 // calling back to RetryOperation. | |
59 void StartOperationWithRetry(AuthenticatedRequestInterface* operation); | |
60 | |
61 private: | |
62 // Called when the access token is fetched. | |
63 void OnAccessTokenFetched( | |
64 const base::WeakPtr<AuthenticatedRequestInterface>& operation, | |
65 GDataErrorCode error, | |
66 const std::string& access_token); | |
67 | |
68 // Clears any authentication token and retries the operation, which forces | |
69 // an authentication token refresh. | |
70 void RetryOperation(AuthenticatedRequestInterface* operation); | |
71 | |
72 Profile* profile_; // Not owned. | |
73 | |
74 scoped_ptr<AuthService> auth_service_; | |
75 scoped_ptr<OperationRegistry> operation_registry_; | |
76 const std::string custom_user_agent_; | |
77 | |
78 // Note: This should remain the last member so it'll be destroyed and | |
79 // invalidate its weak pointers before any other members are destroyed. | |
80 base::WeakPtrFactory<OperationRunner> weak_ptr_factory_; | |
81 | |
82 DISALLOW_COPY_AND_ASSIGN(OperationRunner); | |
83 }; | |
84 | |
85 } // namespace google_apis | |
86 | |
87 #endif // CHROME_BROWSER_GOOGLE_APIS_OPERATION_RUNNER_H_ | |
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