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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.
#include "content/browser/loader/transfer_navigation_resource_throttle.h"
#include "base/bind.h"
#include "content/browser/loader/resource_dispatcher_host_impl.h"
#include "content/browser/renderer_host/render_view_host_delegate.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/global_request_id.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/resource_request_info.h"
#include "content/public/common/referrer.h"
#include "net/url_request/url_request.h"
namespace content {
namespace {
void RequestTransferURLOnUIThread(int render_process_id,
int render_view_id,
const GURL& new_url,
const Referrer& referrer,
WindowOpenDisposition window_open_disposition,
int64 frame_id,
const GlobalRequestID& global_request_id) {
RenderViewHost* rvh =
RenderViewHost::FromID(render_process_id, render_view_id);
if (!rvh)
return;
RenderViewHostDelegate* delegate = rvh->GetDelegate();
if (!delegate)
return;
// We don't know whether the original request had |user_action| set to true.
// However, since we force the navigation to be in the current tab, it doesn't
// matter.
delegate->RequestTransferURL(
new_url, referrer, window_open_disposition,
frame_id, global_request_id, false, true);
}
} // namespace
TransferNavigationResourceThrottle::TransferNavigationResourceThrottle(
net::URLRequest* request)
: request_(request) {
}
TransferNavigationResourceThrottle::~TransferNavigationResourceThrottle() {
}
void TransferNavigationResourceThrottle::WillRedirectRequest(
const GURL& new_url,
bool* defer) {
const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request_);
// If a toplevel request is redirecting across extension extents, we want to
// switch processes. We do this by deferring the redirect and resuming the
// request once the navigation controller properly assigns the right process
// to host the new URL.
// TODO(mpcomplete): handle for cases other than extensions (e.g. WebUI).
ResourceContext* resource_context = info->GetContext();
if (GetContentClient()->browser()->ShouldSwapProcessesForRedirect(
resource_context, request_->url(), new_url)) {
int render_process_id, render_view_id;
if (info->GetAssociatedRenderView(&render_process_id, &render_view_id)) {
GlobalRequestID global_id(info->GetChildID(), info->GetRequestID());
ResourceDispatcherHostImpl::Get()->MarkAsTransferredNavigation(global_id,
new_url);
BrowserThread::PostTask(
BrowserThread::UI,
FROM_HERE,
base::Bind(&RequestTransferURLOnUIThread,
render_process_id,
render_view_id,
new_url,
Referrer(GURL(request_->referrer()), info->GetReferrerPolicy()),
CURRENT_TAB,
info->GetFrameID(),
global_id));
*defer = true;
}
}
}
} // namespace content
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