| // 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_CROSS_SITE_RESOURCE_HANDLER_H_ |
| #define CONTENT_BROWSER_LOADER_CROSS_SITE_RESOURCE_HANDLER_H_ |
| |
| #include "base/memory/ref_counted.h" |
| #include "content/browser/loader/layered_resource_handler.h" |
| #include "net/url_request/url_request_status.h" |
| |
| namespace net { |
| class URLRequest; |
| } |
| |
| namespace content { |
| |
| // Ensures that cross-site responses are delayed until the onunload handler of |
| // the previous page is allowed to run. This handler wraps an |
| // AsyncEventHandler, and it sits inside SafeBrowsing and Buffered event |
| // handlers. This is important, so that it can intercept OnResponseStarted |
| // after we determine that a response is safe and not a download. |
| class CrossSiteResourceHandler : public LayeredResourceHandler { |
| public: |
| CrossSiteResourceHandler(scoped_ptr<ResourceHandler> next_handler, |
| net::URLRequest* request); |
| virtual ~CrossSiteResourceHandler(); |
| |
| // ResourceHandler implementation: |
| virtual bool OnRequestRedirected(int request_id, |
| const GURL& new_url, |
| ResourceResponse* response, |
| bool* defer) OVERRIDE; |
| virtual bool OnResponseStarted(int request_id, |
| ResourceResponse* response, |
| bool* defer) OVERRIDE; |
| virtual bool OnReadCompleted(int request_id, |
| int bytes_read, |
| bool* defer) OVERRIDE; |
| virtual void OnResponseCompleted(int request_id, |
| const net::URLRequestStatus& status, |
| const std::string& security_info, |
| bool* defer) OVERRIDE; |
| |
| // We can now send the response to the new renderer, which will cause |
| // WebContentsImpl to swap in the new renderer and destroy the old one. |
| void ResumeResponse(); |
| |
| private: |
| // Prepare to render the cross-site response in a new RenderViewHost, by |
| // telling the old RenderViewHost to run its onunload handler. |
| void StartCrossSiteTransition(int request_id, |
| ResourceResponse* response, |
| bool should_transfer); |
| |
| void ResumeIfDeferred(); |
| |
| bool has_started_response_; |
| bool in_cross_site_transition_; |
| bool completed_during_transition_; |
| bool did_defer_; |
| net::URLRequestStatus completed_status_; |
| std::string completed_security_info_; |
| scoped_refptr<ResourceResponse> response_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CrossSiteResourceHandler); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_LOADER_CROSS_SITE_RESOURCE_HANDLER_H_ |