15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/renderer_host/offline_resource_throttle.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <vector> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/singleton.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/metrics/histogram.h" 13868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/string_util.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/chromeos/offline/offline_load_page.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/net/chrome_url_request_context.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/url_constants.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/browser_thread.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/render_view_host.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/resource_controller.h" 2058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "content/public/browser/resource_request_info.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/web_contents.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_errors.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_util.h" 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/network_change_notifier.h" 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_request.h" 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_request_context.h" 27868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "webkit/browser/appcache/appcache_service.h" 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::BrowserThread; 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::RenderViewHost; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::WebContents; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ShowOfflinePage( 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int render_process_id, 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int render_view_id, 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL& url, 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const chromeos::OfflineLoadPage::CompletionCallback& callback) { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check again on UI thread and proceed if it's connected. 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!net::NetworkChangeNotifier::IsOffline()) { 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BrowserThread::PostTask( 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BrowserThread::IO, FROM_HERE, base::Bind(callback, true)); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RenderViewHost* render_view_host = 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RenderViewHost::FromID(render_process_id, render_view_id); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebContents* web_contents = render_view_host ? 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebContents::FromRenderViewHost(render_view_host) : NULL; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // There is a chance that the tab closed after we decided to show 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the offline page on the IO thread and before we actually show the 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // offline page here on the UI thread. 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (web_contents) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (new chromeos::OfflineLoadPage(web_contents, url, callback))->Show(); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)OfflineResourceThrottle::OfflineResourceThrottle( 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::URLRequest* request, 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) appcache::AppCacheService* appcache_service) 6458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) : request_(request), 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) appcache_service_(appcache_service) { 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(appcache_service); 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)OfflineResourceThrottle::~OfflineResourceThrottle() { 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!appcache_completion_callback_.IsCancelled()) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) appcache_completion_callback_.Cancel(); 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void OfflineResourceThrottle::WillStartRequest(bool* defer) { 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!ShouldShowOfflinePage(request_->url())) 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "WillStartRequest: this=" << this << ", url=" << request_->url(); 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL* url = &(request_->url()); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL* first_party = &(request_->first_party_for_cookies()); 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Anticipate a client-side HSTS based redirect from HTTP to HTTPS, and 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // ask the appcache about the HTTPS url instead of the HTTP url. 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GURL redirect_url; 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (request_->GetHSTSRedirect(&redirect_url)) { 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (url->GetOrigin() == first_party->GetOrigin()) 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) first_party = &redirect_url; 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url = &redirect_url; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(appcache_completion_callback_.IsCancelled()); 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) appcache_completion_callback_.Reset( 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&OfflineResourceThrottle::OnCanHandleOfflineComplete, 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AsWeakPtr())); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) appcache_service_->CanHandleMainResourceOffline( 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *url, *first_party, 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) appcache_completion_callback_.callback()); 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *defer = true; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 106a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)const char* OfflineResourceThrottle::GetNameForLogging() const { 107a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return "OfflineResourceThrottle"; 108a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)} 109a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void OfflineResourceThrottle::OnBlockingPageComplete(bool proceed) { 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (proceed) { 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) controller()->Resume(); 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) controller()->Cancel(); 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool OfflineResourceThrottle::IsRemote(const GURL& url) const { 121a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) return !net::IsLocalhost(url.host()) && (url.SchemeIs(content::kFtpScheme) || 122d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) url.SchemeIs(content::kHttpScheme) || 123424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) url.SchemeIs(content::kHttpsScheme)); 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool OfflineResourceThrottle::ShouldShowOfflinePage(const GURL& url) const { 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If the network is disconnected while loading other resources, we'll simply 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // show broken link/images. 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return IsRemote(url) && net::NetworkChangeNotifier::IsOffline(); 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void OfflineResourceThrottle::OnCanHandleOfflineComplete(int rv) { 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) appcache_completion_callback_.Cancel(); 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (rv == net::OK) { 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) controller()->Resume(); 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 13858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) const content::ResourceRequestInfo* info = 13958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) content::ResourceRequestInfo::ForRequest(request_); 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BrowserThread::PostTask( 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BrowserThread::UI, 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind( 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &ShowOfflinePage, 14558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) info->GetChildID(), 14658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) info->GetRouteID(), 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) request_->url(), 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind( 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &OfflineResourceThrottle::OnBlockingPageComplete, 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AsWeakPtr()))); 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 153