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// 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 "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,
int render_process_host_id,
int render_view_id,
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 bool OnResponseCompleted(int request_id,
const net::URLRequestStatus& status,
const std::string& security_info) 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);
void ResumeIfDeferred();
int render_process_host_id_;
int render_view_id_;
net::URLRequest* request_;
bool has_started_response_;
bool in_cross_site_transition_;
int request_id_;
bool completed_during_transition_;
bool did_defer_;
net::URLRequestStatus completed_status_;
std::string completed_security_info_;
ResourceResponse* response_;
DISALLOW_COPY_AND_ASSIGN(CrossSiteResourceHandler);
};
} // namespace content
#endif // CONTENT_BROWSER_LOADER_CROSS_SITE_RESOURCE_HANDLER_H_
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