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// Copyright (c) 2006-2008 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 CHROME_BROWSER_RENDERER_HOST_CROSS_SITE_RESOURCE_HANDLER_H_
#define CHROME_BROWSER_RENDERER_HOST_CROSS_SITE_RESOURCE_HANDLER_H_
#include "chrome/browser/renderer_host/resource_dispatcher_host.h"
#include "chrome/browser/renderer_host/resource_handler.h"
// 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 ResourceHandler {
public:
CrossSiteResourceHandler(ResourceHandler* handler,
int render_process_host_id,
int render_view_id,
ResourceDispatcherHost* resource_dispatcher_host);
// ResourceHandler implementation:
bool OnRequestRedirected(int request_id, const GURL& new_url,
ResourceResponse* response, bool* defer);
bool OnResponseStarted(int request_id,
ResourceResponse* response);
bool OnWillRead(int request_id, net::IOBuffer** buf, int* buf_size,
int min_size);
bool OnReadCompleted(int request_id, int* bytes_read);
bool OnResponseCompleted(int request_id,
const URLRequestStatus& status,
const std::string& security_info);
// We can now send the response to the new renderer, which will cause
// TabContents to swap in the new renderer and destroy the old one.
void ResumeResponse();
private:
~CrossSiteResourceHandler() {}
// 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,
ResourceDispatcherHost::GlobalRequestID global_id);
scoped_refptr<ResourceHandler> next_handler_;
int render_process_host_id_;
int render_view_id_;
bool has_started_response_;
bool in_cross_site_transition_;
int request_id_;
bool completed_during_transition_;
URLRequestStatus completed_status_;
std::string completed_security_info_;
ResourceResponse* response_;
ResourceDispatcherHost* rdh_;
DISALLOW_COPY_AND_ASSIGN(CrossSiteResourceHandler);
};
#endif // CHROME_BROWSER_RENDERER_HOST_CROSS_SITE_RESOURCE_HANDLER_H_
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