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 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_BROWSER_LOADER_CROSS_SITE_RESOURCE_HANDLER_H_ 6 #define CONTENT_BROWSER_LOADER_CROSS_SITE_RESOURCE_HANDLER_H_ 7 8 #include "content/browser/loader/layered_resource_handler.h" 9 #include "net/url_request/url_request_status.h" 10 11 namespace net { 12 class URLRequest; 13 } 14 15 namespace content { 16 17 // Ensures that cross-site responses are delayed until the onunload handler of 18 // the previous page is allowed to run. This handler wraps an 19 // AsyncEventHandler, and it sits inside SafeBrowsing and Buffered event 20 // handlers. This is important, so that it can intercept OnResponseStarted 21 // after we determine that a response is safe and not a download. 22 class CrossSiteResourceHandler : public LayeredResourceHandler { 23 public: 24 CrossSiteResourceHandler(scoped_ptr<ResourceHandler> next_handler, 25 int render_process_host_id, 26 int render_view_id, 27 net::URLRequest* request); 28 virtual ~CrossSiteResourceHandler(); 29 30 // ResourceHandler implementation: 31 virtual bool OnRequestRedirected(int request_id, 32 const GURL& new_url, 33 ResourceResponse* response, 34 bool* defer) OVERRIDE; 35 virtual bool OnResponseStarted(int request_id, 36 ResourceResponse* response, 37 bool* defer) OVERRIDE; 38 virtual bool OnReadCompleted(int request_id, 39 int bytes_read, 40 bool* defer) OVERRIDE; 41 virtual bool OnResponseCompleted(int request_id, 42 const net::URLRequestStatus& status, 43 const std::string& security_info) OVERRIDE; 44 45 // We can now send the response to the new renderer, which will cause 46 // WebContentsImpl to swap in the new renderer and destroy the old one. 47 void ResumeResponse(); 48 49 private: 50 // Prepare to render the cross-site response in a new RenderViewHost, by 51 // telling the old RenderViewHost to run its onunload handler. 52 void StartCrossSiteTransition( 53 int request_id, 54 ResourceResponse* response); 55 56 void ResumeIfDeferred(); 57 58 int render_process_host_id_; 59 int render_view_id_; 60 net::URLRequest* request_; 61 bool has_started_response_; 62 bool in_cross_site_transition_; 63 int request_id_; 64 bool completed_during_transition_; 65 bool did_defer_; 66 net::URLRequestStatus completed_status_; 67 std::string completed_security_info_; 68 ResourceResponse* response_; 69 70 DISALLOW_COPY_AND_ASSIGN(CrossSiteResourceHandler); 71 }; 72 73 } // namespace content 74 75 #endif // CONTENT_BROWSER_LOADER_CROSS_SITE_RESOURCE_HANDLER_H_ 76