content/browser/loader/transfer_navigation_resource_throttle.cc

   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 #include "content/browser/loader/transfer_navigation_resource_throttle.h"
   6
   7 #include "base/bind.h"
   8 #include "content/browser/loader/resource_dispatcher_host_impl.h"
   9 #include "content/browser/renderer_host/render_view_host_delegate.h"
  10 #include "content/public/browser/browser_thread.h"
  11 #include "content/public/browser/content_browser_client.h"
  12 #include "content/public/browser/global_request_id.h"
  13 #include "content/public/browser/render_view_host.h"
  14 #include "content/public/browser/resource_request_info.h"
  15 #include "content/public/common/referrer.h"
  16 #include "net/url_request/url_request.h"
  17
  18 namespace content {
  19
  20 namespace {
  21
  22 void RequestTransferURLOnUIThread(int render_process_id,
  23                                   int render_view_id,
  24                                   const GURL& new_url,
  25                                   const Referrer& referrer,
  26                                   WindowOpenDisposition window_open_disposition,
  27                                   int64 frame_id,
  28                                   const GlobalRequestID& global_request_id) {
  29   RenderViewHost* rvh =
  30       RenderViewHost::FromID(render_process_id, render_view_id);
  31   if (!rvh)
  32     return;
  33
  34   RenderViewHostDelegate* delegate = rvh->GetDelegate();
  35   if (!delegate)
  36     return;
  37
  38   // We don't know whether the original request had |user_action| set to true.
  39   // However, since we force the navigation to be in the current tab, it doesn't
  40   // matter.
  41   delegate->RequestTransferURL(
  42       new_url, referrer, window_open_disposition,
  43       frame_id, global_request_id, false, true);
  44 }
  45
  46 }  // namespace
  47
  48 TransferNavigationResourceThrottle::TransferNavigationResourceThrottle(
  49     net::URLRequest* request)
  50     : request_(request) {
  51 }
  52
  53 TransferNavigationResourceThrottle::~TransferNavigationResourceThrottle() {
  54 }
  55
  56 void TransferNavigationResourceThrottle::WillRedirectRequest(
  57     const GURL& new_url,
  58     bool* defer) {
  59   const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request_);
  60
  61   // If a toplevel request is redirecting across extension extents, we want to
  62   // switch processes. We do this by deferring the redirect and resuming the
  63   // request once the navigation controller properly assigns the right process
  64   // to host the new URL.
  65   // TODO(mpcomplete): handle for cases other than extensions (e.g. WebUI).
  66   ResourceContext* resource_context = info->GetContext();
  67   if (GetContentClient()->browser()->ShouldSwapProcessesForRedirect(
  68           resource_context, request_->url(), new_url)) {
  69     int render_process_id, render_view_id;
  70     if (info->GetAssociatedRenderView(&render_process_id, &render_view_id)) {
  71       GlobalRequestID global_id(info->GetChildID(), info->GetRequestID());
  72
  73       ResourceDispatcherHostImpl::Get()->MarkAsTransferredNavigation(global_id,
  74                                                                      new_url);
  75
  76       BrowserThread::PostTask(
  77           BrowserThread::UI,
  78           FROM_HERE,
  79           base::Bind(&RequestTransferURLOnUIThread,
  80               render_process_id,
  81               render_view_id,
  82               new_url,
  83               Referrer(GURL(request_->referrer()), info->GetReferrerPolicy()),
  84               CURRENT_TAB,
  85               info->GetFrameID(),
  86               global_id));
  87
  88       *defer = true;
  89     }
  90   }
  91 }
  92
  93 }  // namespace content