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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 CHROME_BROWSER_RENDERER_HOST_RESOURCE_MESSAGE_FILTER_H_ | 5 #ifndef CHROME_BROWSER_RENDERER_HOST_RESOURCE_MESSAGE_FILTER_H_ |
| 6 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_MESSAGE_FILTER_H_ | 6 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_MESSAGE_FILTER_H_ |
| 7 | 7 |
| 8 #include "base/scoped_ptr.h" | 8 #include "base/scoped_ptr.h" |
| 9 #include "chrome/browser/browser_message_filter.h" | 9 #include "chrome/browser/browser_message_filter.h" |
| 10 #include "chrome/common/child_process_info.h" | 10 #include "chrome/common/child_process_info.h" |
| 11 #include "webkit/glue/resource_type.h" | 11 #include "webkit/glue/resource_type.h" |
| 12 | 12 |
| 13 class ChromeURLRequestContext; | 13 class ChromeURLRequestContext; |
| 14 class ResourceDispatcherHost; | 14 class ResourceDispatcherHost; |
| 15 | 15 |
| 16 namespace net { | 16 namespace net { |
| 17 class URLRequestContext; | 17 class URLRequestContext; |
| 18 } // namespace net | 18 } // namespace net |
| 19 | 19 |
| 20 // This class filters out incoming IPC messages for network requests and | 20 // This class filters out incoming IPC messages for network requests and |
| 21 // processes them on the IPC thread. As a result, network requests are not | 21 // processes them on the IPC thread. As a result, network requests are not |
| 22 // delayed by costly UI processing that may be occuring on the main thread of | 22 // delayed by costly UI processing that may be occuring on the main thread of |
| 23 // the browser. It also means that any hangs in starting a network request | 23 // the browser. It also means that any hangs in starting a network request |
| 24 // will not interfere with browser UI. | 24 // will not interfere with browser UI. |
| 25 class ResourceMessageFilter : public BrowserMessageFilter { | 25 class ResourceMessageFilter : public BrowserMessageFilter { |
| 26 public: | 26 public: |
| 27 // Allows overriding the URLRequestContext used to service requests. | 27 // Allows overriding the net::URLRequestContext used to service requests. |
| 28 class URLRequestContextOverride | 28 class URLRequestContextOverride |
| 29 : public base::RefCountedThreadSafe<URLRequestContextOverride> { | 29 : public base::RefCountedThreadSafe<URLRequestContextOverride> { |
| 30 public: | 30 public: |
| 31 URLRequestContextOverride() {} | 31 URLRequestContextOverride() {} |
| 32 | 32 |
| 33 virtual net::URLRequestContext* GetRequestContext( | 33 virtual net::URLRequestContext* GetRequestContext( |
| 34 uint32 request_id, ResourceType::Type resource_type) = 0; | 34 uint32 request_id, ResourceType::Type resource_type) = 0; |
| 35 | 35 |
| 36 protected: | 36 protected: |
| 37 friend class base::RefCountedThreadSafe<URLRequestContextOverride>; | 37 friend class base::RefCountedThreadSafe<URLRequestContextOverride>; |
| 38 virtual ~URLRequestContextOverride() {} | 38 virtual ~URLRequestContextOverride() {} |
| 39 | 39 |
| 40 DISALLOW_COPY_AND_ASSIGN(URLRequestContextOverride); | 40 DISALLOW_COPY_AND_ASSIGN(URLRequestContextOverride); |
| 41 }; | 41 }; |
| 42 | 42 |
| 43 ResourceMessageFilter(int child_id, | 43 ResourceMessageFilter(int child_id, |
| 44 ChildProcessInfo::ProcessType process_type, | 44 ChildProcessInfo::ProcessType process_type, |
| 45 ResourceDispatcherHost* resource_dispatcher_host); | 45 ResourceDispatcherHost* resource_dispatcher_host); |
| 46 | 46 |
| 47 // BrowserMessageFilter implementation. | 47 // BrowserMessageFilter implementation. |
| 48 virtual void OnChannelClosing(); | 48 virtual void OnChannelClosing(); |
| 49 virtual bool OnMessageReceived(const IPC::Message& message, | 49 virtual bool OnMessageReceived(const IPC::Message& message, |
| 50 bool* message_was_ok); | 50 bool* message_was_ok); |
| 51 | 51 |
| 52 // Returns the URLRequestContext for the given request. | 52 // Returns the net::URLRequestContext for the given request. |
| 53 ChromeURLRequestContext* GetURLRequestContext( | 53 ChromeURLRequestContext* GetURLRequestContext( |
| 54 uint32 request_id, ResourceType::Type resource_type); | 54 uint32 request_id, ResourceType::Type resource_type); |
| 55 | 55 |
| 56 void set_url_request_context_override(URLRequestContextOverride* u) { | 56 void set_url_request_context_override(URLRequestContextOverride* u) { |
| 57 url_request_context_override_ = u; | 57 url_request_context_override_ = u; |
| 58 } | 58 } |
| 59 | 59 |
| 60 int child_id() const { return child_id_; } | 60 int child_id() const { return child_id_; } |
| 61 ChildProcessInfo::ProcessType process_type() const { return process_type_; } | 61 ChildProcessInfo::ProcessType process_type() const { return process_type_; } |
| 62 | 62 |
| 63 protected: | 63 protected: |
| 64 // Protected destructor so that we can be overriden in tests. | 64 // Protected destructor so that we can be overriden in tests. |
| 65 virtual ~ResourceMessageFilter(); | 65 virtual ~ResourceMessageFilter(); |
| 66 | 66 |
| 67 private: | 67 private: |
| 68 // The ID of the child process. | 68 // The ID of the child process. |
| 69 int child_id_; | 69 int child_id_; |
| 70 | 70 |
| 71 ChildProcessInfo::ProcessType process_type_; | 71 ChildProcessInfo::ProcessType process_type_; |
| 72 | 72 |
| 73 // Owned by BrowserProcess, which is guaranteed to outlive us. | 73 // Owned by BrowserProcess, which is guaranteed to outlive us. |
| 74 ResourceDispatcherHost* resource_dispatcher_host_; | 74 ResourceDispatcherHost* resource_dispatcher_host_; |
| 75 | 75 |
| 76 scoped_refptr<URLRequestContextOverride> url_request_context_override_; | 76 scoped_refptr<URLRequestContextOverride> url_request_context_override_; |
| 77 | 77 |
| 78 DISALLOW_IMPLICIT_CONSTRUCTORS(ResourceMessageFilter); | 78 DISALLOW_IMPLICIT_CONSTRUCTORS(ResourceMessageFilter); |
| 79 }; | 79 }; |
| 80 | 80 |
| 81 #endif // CHROME_BROWSER_RENDERER_HOST_RESOURCE_MESSAGE_FILTER_H_ | 81 #endif // CHROME_BROWSER_RENDERER_HOST_RESOURCE_MESSAGE_FILTER_H_ |
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