| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_BROWSER_LOADER_RESOURCE_MESSAGE_FILTER_H_ |
| #define CONTENT_BROWSER_LOADER_RESOURCE_MESSAGE_FILTER_H_ |
| |
| #include "base/callback_forward.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "content/common/content_export.h" |
| #include "content/public/browser/browser_message_filter.h" |
| #include "webkit/common/resource_type.h" |
| |
| struct ResourceHostMsg_Request; |
| |
| namespace fileapi { |
| class FileSystemContext; |
| } // namespace fileapi |
| |
| namespace net { |
| class URLRequestContext; |
| } // namespace net |
| |
| |
| namespace content { |
| class ChromeAppCacheService; |
| class ChromeBlobStorageContext; |
| class ResourceContext; |
| |
| // This class filters out incoming IPC messages for network requests and |
| // processes them on the IPC thread. As a result, network requests are not |
| // delayed by costly UI processing that may be occuring on the main thread of |
| // the browser. It also means that any hangs in starting a network request |
| // will not interfere with browser UI. |
| class CONTENT_EXPORT ResourceMessageFilter : public BrowserMessageFilter { |
| public: |
| typedef base::Callback<void(const ResourceHostMsg_Request&, |
| ResourceContext**, |
| net::URLRequestContext**)> GetContextsCallback; |
| |
| // |appcache_service|, |blob_storage_context|, |file_system_context| may be |
| // NULL in unittests or for requests from the (NPAPI) plugin process. |
| ResourceMessageFilter( |
| int child_id, |
| int process_type, |
| ChromeAppCacheService* appcache_service, |
| ChromeBlobStorageContext* blob_storage_context, |
| fileapi::FileSystemContext* file_system_context, |
| const GetContextsCallback& get_contexts_callback); |
| |
| // BrowserMessageFilter implementation. |
| virtual void OnChannelClosing() OVERRIDE; |
| virtual bool OnMessageReceived(const IPC::Message& message, |
| bool* message_was_ok) OVERRIDE; |
| |
| void GetContexts(const ResourceHostMsg_Request& request, |
| ResourceContext** resource_context, |
| net::URLRequestContext** request_context); |
| |
| // Returns the net::URLRequestContext for the given request. |
| net::URLRequestContext* GetURLRequestContext( |
| ResourceType::Type request_type); |
| |
| ChromeAppCacheService* appcache_service() const { |
| return appcache_service_.get(); |
| } |
| |
| ChromeBlobStorageContext* blob_storage_context() const { |
| return blob_storage_context_.get(); |
| } |
| |
| fileapi::FileSystemContext* file_system_context() const { |
| return file_system_context_.get(); |
| } |
| |
| int child_id() const { return child_id_; } |
| int process_type() const { return process_type_; } |
| |
| base::WeakPtr<ResourceMessageFilter> GetWeakPtr(); |
| |
| protected: |
| // Protected destructor so that we can be overriden in tests. |
| virtual ~ResourceMessageFilter(); |
| |
| private: |
| // The ID of the child process. |
| int child_id_; |
| |
| int process_type_; |
| |
| scoped_refptr<ChromeAppCacheService> appcache_service_; |
| scoped_refptr<ChromeBlobStorageContext> blob_storage_context_; |
| scoped_refptr<fileapi::FileSystemContext> file_system_context_; |
| |
| GetContextsCallback get_contexts_callback_; |
| |
| // This must come last to make sure weak pointers are invalidated first. |
| base::WeakPtrFactory<ResourceMessageFilter> weak_ptr_factory_; |
| |
| DISALLOW_IMPLICIT_CONSTRUCTORS(ResourceMessageFilter); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_LOADER_RESOURCE_MESSAGE_FILTER_H_ |