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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef NET_PROXY_PROXY_SCRIPT_FETCHER_IMPL_H_ | 5 #ifndef NET_PROXY_PROXY_SCRIPT_FETCHER_IMPL_H_ |
6 #define NET_PROXY_PROXY_SCRIPT_FETCHER_IMPL_H_ | 6 #define NET_PROXY_PROXY_SCRIPT_FETCHER_IMPL_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
10 #include "base/ref_counted.h" | 10 #include "base/ref_counted.h" |
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30 // Creates a ProxyScriptFetcher that issues requests through | 30 // Creates a ProxyScriptFetcher that issues requests through |
31 // |url_request_context|. |url_request_context| must remain valid for the | 31 // |url_request_context|. |url_request_context| must remain valid for the |
32 // lifetime of ProxyScriptFetcherImpl. | 32 // lifetime of ProxyScriptFetcherImpl. |
33 // Note that while a request is in progress, we will be holding a reference | 33 // Note that while a request is in progress, we will be holding a reference |
34 // to |url_request_context|. Be careful not to create cycles between the | 34 // to |url_request_context|. Be careful not to create cycles between the |
35 // fetcher and the context; you can break such cycles by calling Cancel(). | 35 // fetcher and the context; you can break such cycles by calling Cancel(). |
36 explicit ProxyScriptFetcherImpl(URLRequestContext* url_request_context); | 36 explicit ProxyScriptFetcherImpl(URLRequestContext* url_request_context); |
37 | 37 |
38 virtual ~ProxyScriptFetcherImpl(); | 38 virtual ~ProxyScriptFetcherImpl(); |
39 | 39 |
| 40 // Used by unit-tests to modify the default limits. |
| 41 base::TimeDelta SetTimeoutConstraint(base::TimeDelta timeout); |
| 42 size_t SetSizeConstraint(size_t size_bytes); |
| 43 |
| 44 virtual void OnResponseCompleted(URLRequest* request); |
| 45 |
40 // ProxyScriptFetcher methods: | 46 // ProxyScriptFetcher methods: |
41 | |
42 virtual int Fetch(const GURL& url, string16* text, | 47 virtual int Fetch(const GURL& url, string16* text, |
43 CompletionCallback* callback); | 48 CompletionCallback* callback); |
44 virtual void Cancel(); | 49 virtual void Cancel(); |
45 virtual URLRequestContext* GetRequestContext(); | 50 virtual URLRequestContext* GetRequestContext(); |
46 | 51 |
47 // URLRequest::Delegate methods: | 52 // URLRequest::Delegate methods: |
48 virtual void OnAuthRequired(URLRequest* request, | 53 virtual void OnAuthRequired(URLRequest* request, |
49 AuthChallengeInfo* auth_info); | 54 AuthChallengeInfo* auth_info); |
50 virtual void OnSSLCertificateError(URLRequest* request, int cert_error, | 55 virtual void OnSSLCertificateError(URLRequest* request, int cert_error, |
51 X509Certificate* cert); | 56 X509Certificate* cert); |
52 virtual void OnResponseStarted(URLRequest* request); | 57 virtual void OnResponseStarted(URLRequest* request); |
53 virtual void OnReadCompleted(URLRequest* request, int num_bytes); | 58 virtual void OnReadCompleted(URLRequest* request, int num_bytes); |
54 virtual void OnResponseCompleted(URLRequest* request); | |
55 | |
56 // Used by unit-tests to modify the default limits. | |
57 base::TimeDelta SetTimeoutConstraint(base::TimeDelta timeout); | |
58 size_t SetSizeConstraint(size_t size_bytes); | |
59 | 59 |
60 private: | 60 private: |
| 61 enum { kBufSize = 4096 }; |
| 62 |
61 // Read more bytes from the response. | 63 // Read more bytes from the response. |
62 void ReadBody(URLRequest* request); | 64 void ReadBody(URLRequest* request); |
63 | 65 |
64 // Handles a response from Read(). Returns true if we should continue trying | 66 // Handles a response from Read(). Returns true if we should continue trying |
65 // to read. |num_bytes| is 0 for EOF, and < 0 on errors. | 67 // to read. |num_bytes| is 0 for EOF, and < 0 on errors. |
66 bool ConsumeBytesRead(URLRequest* request, int num_bytes); | 68 bool ConsumeBytesRead(URLRequest* request, int num_bytes); |
67 | 69 |
68 // Called once the request has completed to notify the caller of | 70 // Called once the request has completed to notify the caller of |
69 // |response_code_| and |response_text_|. | 71 // |response_code_| and |response_text_|. |
70 void FetchCompleted(); | 72 void FetchCompleted(); |
71 | 73 |
72 // Clear out the state for the current request. | 74 // Clear out the state for the current request. |
73 void ResetCurRequestState(); | 75 void ResetCurRequestState(); |
74 | 76 |
75 // Callback for time-out task of request with id |id|. | 77 // Callback for time-out task of request with id |id|. |
76 void OnTimeout(int id); | 78 void OnTimeout(int id); |
77 | 79 |
78 // Factory for creating the time-out task. This takes care of revoking | 80 // Factory for creating the time-out task. This takes care of revoking |
79 // outstanding tasks when |this| is deleted. | 81 // outstanding tasks when |this| is deleted. |
80 ScopedRunnableMethodFactory<ProxyScriptFetcherImpl> task_factory_; | 82 ScopedRunnableMethodFactory<ProxyScriptFetcherImpl> task_factory_; |
81 | 83 |
82 // The context used for making network requests. | 84 // The context used for making network requests. |
83 URLRequestContext* url_request_context_; | 85 URLRequestContext* url_request_context_; |
84 | 86 |
85 // Buffer that URLRequest writes into. | 87 // Buffer that URLRequest writes into. |
86 enum { kBufSize = 4096 }; | |
87 scoped_refptr<IOBuffer> buf_; | 88 scoped_refptr<IOBuffer> buf_; |
88 | 89 |
89 // The next ID to use for |cur_request_| (monotonically increasing). | 90 // The next ID to use for |cur_request_| (monotonically increasing). |
90 int next_id_; | 91 int next_id_; |
91 | 92 |
92 // The current (in progress) request, or NULL. | 93 // The current (in progress) request, or NULL. |
93 scoped_ptr<URLRequest> cur_request_; | 94 scoped_ptr<URLRequest> cur_request_; |
94 | 95 |
95 // State for current request (only valid when |cur_request_| is not NULL): | 96 // State for current request (only valid when |cur_request_| is not NULL): |
96 | 97 |
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115 | 116 |
116 // The maximum amount of time to wait for download to complete. | 117 // The maximum amount of time to wait for download to complete. |
117 base::TimeDelta max_duration_; | 118 base::TimeDelta max_duration_; |
118 | 119 |
119 DISALLOW_COPY_AND_ASSIGN(ProxyScriptFetcherImpl); | 120 DISALLOW_COPY_AND_ASSIGN(ProxyScriptFetcherImpl); |
120 }; | 121 }; |
121 | 122 |
122 } // namespace net | 123 } // namespace net |
123 | 124 |
124 #endif // NET_PROXY_PROXY_SCRIPT_FETCHER_IMPL_H_ | 125 #endif // NET_PROXY_PROXY_SCRIPT_FETCHER_IMPL_H_ |
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