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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_ | 5 #ifndef CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_ |
6 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_ | 6 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
| 12 #include "base/memory/weak_ptr.h" |
12 #include "base/timer/timer.h" | 13 #include "base/timer/timer.h" |
| 14 #include "content/browser/download/download_request_model.h" |
13 #include "content/browser/loader/resource_handler.h" | 15 #include "content/browser/loader/resource_handler.h" |
14 #include "content/public/browser/download_manager.h" | 16 #include "content/public/browser/download_manager.h" |
15 #include "content/public/browser/download_save_info.h" | 17 #include "content/public/browser/download_save_info.h" |
16 #include "content/public/browser/download_url_parameters.h" | 18 #include "content/public/browser/download_url_parameters.h" |
17 #include "content/public/browser/global_request_id.h" | 19 #include "content/public/browser/global_request_id.h" |
18 #include "net/base/net_errors.h" | 20 #include "net/base/net_errors.h" |
19 | 21 |
20 | |
21 namespace net { | 22 namespace net { |
22 class URLRequest; | 23 class URLRequest; |
23 } // namespace net | 24 } // namespace net |
24 | 25 |
25 namespace content { | 26 namespace content { |
26 class ByteStreamWriter; | 27 class ByteStreamWriter; |
27 class ByteStreamReader; | 28 class ByteStreamReader; |
28 class DownloadRequestHandle; | 29 class DownloadRequestHandle; |
29 struct DownloadCreateInfo; | 30 struct DownloadCreateInfo; |
30 | 31 |
31 // Forwards data to the download thread. | 32 // Forwards data to the download thread. |
32 class CONTENT_EXPORT DownloadResourceHandler | 33 class CONTENT_EXPORT DownloadResourceHandler |
33 : public ResourceHandler, | 34 : public ResourceHandler, |
34 public base::SupportsWeakPtr<DownloadResourceHandler> { | 35 public base::SupportsWeakPtr<DownloadResourceHandler> { |
35 public: | 36 public: |
36 // Size of the buffer used between the DownloadResourceHandler and the | 37 explicit DownloadResourceHandler(net::URLRequest* request); |
37 // downstream receiver of its output. | |
38 static const int kDownloadByteStreamSize; | |
39 | |
40 // started_cb will be called exactly once on the UI thread. | |
41 // |id| should be invalid if the id should be automatically assigned. | |
42 DownloadResourceHandler( | |
43 uint32 id, | |
44 net::URLRequest* request, | |
45 const DownloadUrlParameters::OnStartedCallback& started_cb, | |
46 scoped_ptr<DownloadSaveInfo> save_info); | |
47 | 38 |
48 virtual bool OnUploadProgress(int request_id, | 39 virtual bool OnUploadProgress(int request_id, |
49 uint64 position, | 40 uint64 position, |
50 uint64 size) OVERRIDE; | 41 uint64 size) OVERRIDE; |
51 | 42 |
52 virtual bool OnRequestRedirected(int request_id, | 43 virtual bool OnRequestRedirected(int request_id, |
53 const GURL& url, | 44 const GURL& url, |
54 ResourceResponse* response, | 45 ResourceResponse* response, |
55 bool* defer) OVERRIDE; | 46 bool* defer) OVERRIDE; |
56 | 47 |
(...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
88 std::string DebugString() const; | 79 std::string DebugString() const; |
89 | 80 |
90 private: | 81 private: |
91 virtual ~DownloadResourceHandler(); | 82 virtual ~DownloadResourceHandler(); |
92 | 83 |
93 // Arrange for started_cb_ to be called on the UI thread with the | 84 // Arrange for started_cb_ to be called on the UI thread with the |
94 // below values, nulling out started_cb_. Should only be called | 85 // below values, nulling out started_cb_. Should only be called |
95 // on the IO thread. | 86 // on the IO thread. |
96 void CallStartedCB(DownloadItem* item, net::Error error); | 87 void CallStartedCB(DownloadItem* item, net::Error error); |
97 | 88 |
98 // If the content-length header is not present (or contains something other | 89 DownloadRequestModel request_model_; |
99 // than numbers), the incoming content_length is -1 (unknown size). | |
100 // Set the content length to 0 to indicate unknown size to DownloadManager. | |
101 void SetContentLength(const int64& content_length); | |
102 | 90 |
103 void SetContentDisposition(const std::string& content_disposition); | |
104 | |
105 uint32 download_id_; | |
106 GlobalRequestID global_id_; | 91 GlobalRequestID global_id_; |
107 int render_view_id_; | 92 int render_view_id_; |
108 std::string content_disposition_; | 93 bool did_defer_request_; |
109 int64 content_length_; | |
110 net::URLRequest* request_; | |
111 // This is read only on the IO thread, but may only | |
112 // be called on the UI thread. | |
113 DownloadUrlParameters::OnStartedCallback started_cb_; | |
114 scoped_ptr<DownloadSaveInfo> save_info_; | |
115 | |
116 // Data flow | |
117 scoped_refptr<net::IOBuffer> read_buffer_; // From URLRequest. | |
118 scoped_ptr<ByteStreamWriter> stream_writer_; // To rest of system. | |
119 | |
120 // The following are used to collect stats. | |
121 base::TimeTicks download_start_time_; | |
122 base::TimeTicks last_read_time_; | |
123 base::TimeTicks last_stream_pause_time_; | |
124 base::TimeDelta total_pause_time_; | |
125 size_t last_buffer_size_; | |
126 int64 bytes_read_; | |
127 std::string accept_ranges_; | |
128 std::string etag_; | |
129 | |
130 int pause_count_; | |
131 bool was_deferred_; | |
132 | 94 |
133 // For DCHECKing | 95 // For DCHECKing |
134 bool on_response_started_called_; | 96 bool on_response_started_called_; |
135 | 97 |
136 static const int kReadBufSize = 32768; // bytes | |
137 static const int kThrottleTimeMs = 200; // milliseconds | |
138 | |
139 DISALLOW_COPY_AND_ASSIGN(DownloadResourceHandler); | 98 DISALLOW_COPY_AND_ASSIGN(DownloadResourceHandler); |
140 }; | 99 }; |
141 | 100 |
142 } // namespace content | 101 } // namespace content |
143 | 102 |
144 #endif // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_ | 103 #endif // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_RESOURCE_HANDLER_H_ |
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