OLD | NEW |
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 CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_ | 5 #ifndef CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_ |
6 #define CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_ | 6 #define CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 // TODO(jam): remove this file when all files have been converted. |
10 | 10 #include "content/browser/renderer_host/buffered_resource_handler.h" |
11 #include "chrome/browser/renderer_host/resource_handler.h" | |
12 | |
13 class MessageLoop; | |
14 class ResourceDispatcherHost; | |
15 | |
16 namespace net { | |
17 class URLRequest; | |
18 } // namespace net | |
19 | |
20 // Used to buffer a request until enough data has been received. | |
21 class BufferedResourceHandler : public ResourceHandler { | |
22 public: | |
23 BufferedResourceHandler(ResourceHandler* handler, | |
24 ResourceDispatcherHost* host, | |
25 net::URLRequest* request); | |
26 | |
27 // ResourceHandler implementation: | |
28 virtual bool OnUploadProgress(int request_id, uint64 position, uint64 size); | |
29 virtual bool OnRequestRedirected(int request_id, const GURL& new_url, | |
30 ResourceResponse* response, bool* defer); | |
31 virtual bool OnResponseStarted(int request_id, ResourceResponse* response); | |
32 virtual bool OnWillStart(int request_id, const GURL& url, bool* defer); | |
33 virtual bool OnWillRead(int request_id, net::IOBuffer** buf, int* buf_size, | |
34 int min_size); | |
35 virtual bool OnReadCompleted(int request_id, int* bytes_read); | |
36 virtual bool OnResponseCompleted(int request_id, | |
37 const net::URLRequestStatus& status, | |
38 const std::string& security_info); | |
39 virtual void OnRequestClosed(); | |
40 | |
41 private: | |
42 virtual ~BufferedResourceHandler(); | |
43 | |
44 // Returns true if we should delay OnResponseStarted forwarding. | |
45 bool DelayResponse(); | |
46 | |
47 // Returns true if there will be a need to parse the DocType of the document | |
48 // to determine the right way to handle it. | |
49 bool ShouldBuffer(const GURL& url, const std::string& mime_type); | |
50 | |
51 // Returns true if there is enough information to process the DocType. | |
52 bool DidBufferEnough(int bytes_read); | |
53 | |
54 // Returns true if we have to keep buffering data. | |
55 bool KeepBuffering(int bytes_read); | |
56 | |
57 // Sends a pending OnResponseStarted notification. |in_complete| is true if | |
58 // this is invoked from |OnResponseCompleted|. | |
59 bool CompleteResponseStarted(int request_id, bool in_complete); | |
60 | |
61 // Returns true if we have to wait until the plugin list is generated. | |
62 bool ShouldWaitForPlugins(); | |
63 | |
64 // A test to determining whether the request should be forwarded to the | |
65 // download thread. If need_plugin_list was passed in and was set to true, | |
66 // that means that the check couldn't be fully done because the plugins aren't | |
67 // loaded. The function should be called again after the plugin list is | |
68 // loaded. | |
69 bool ShouldDownload(bool* need_plugin_list); | |
70 | |
71 // Informs the original ResourceHandler |real_handler_| that the response will | |
72 // be handled entirely by the new ResourceHandler |handler|. | |
73 // A reference to |handler| is acquired. | |
74 void UseAlternateResourceHandler(int request_id, ResourceHandler* handler); | |
75 | |
76 // Called on the file thread to load the list of plugins. | |
77 void LoadPlugins(); | |
78 | |
79 // Called on the IO thread once the list of plugins has been loaded. | |
80 void OnPluginsLoaded(); | |
81 | |
82 scoped_refptr<ResourceHandler> real_handler_; | |
83 scoped_refptr<ResourceResponse> response_; | |
84 ResourceDispatcherHost* host_; | |
85 net::URLRequest* request_; | |
86 scoped_refptr<net::IOBuffer> read_buffer_; | |
87 scoped_refptr<net::IOBuffer> my_buffer_; | |
88 int read_buffer_size_; | |
89 int bytes_read_; | |
90 bool sniff_content_; | |
91 bool should_buffer_; | |
92 bool wait_for_plugins_; | |
93 bool buffering_; | |
94 bool finished_; | |
95 | |
96 DISALLOW_COPY_AND_ASSIGN(BufferedResourceHandler); | |
97 }; | |
98 | 11 |
99 #endif // CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_ | 12 #endif // CHROME_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_ |
OLD | NEW |