зеркало из https://github.com/mozilla/gecko-dev.git
845 строки
22 KiB
C++
845 строки
22 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsDOMOfflineResourceList.h"
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#include "nsIDOMEvent.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsError.h"
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#include "mozilla/dom/DOMStringList.h"
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#include "nsIPrefetchService.h"
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#include "nsCPrefetchService.h"
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#include "nsNetUtil.h"
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#include "nsNetCID.h"
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#include "nsIOfflineCacheUpdate.h"
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#include "nsAutoPtr.h"
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#include "nsContentUtils.h"
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#include "nsIObserverService.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIWebNavigation.h"
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#include "mozilla/dom/OfflineResourceListBinding.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/Preferences.h"
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#include "nsXULAppAPI.h"
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#define IS_CHILD_PROCESS() \
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(GeckoProcessType_Default != XRE_GetProcessType())
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using namespace mozilla;
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using namespace mozilla::dom;
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// Event names
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#define CHECKING_STR "checking"
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#define ERROR_STR "error"
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#define NOUPDATE_STR "noupdate"
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#define DOWNLOADING_STR "downloading"
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#define PROGRESS_STR "progress"
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#define CACHED_STR "cached"
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#define UPDATEREADY_STR "updateready"
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#define OBSOLETE_STR "obsolete"
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// To prevent abuse of the resource list for data storage, the number
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// of offline urls and their length are limited.
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static const char kMaxEntriesPref[] = "offline.max_site_resources";
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#define DEFAULT_MAX_ENTRIES 100
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#define MAX_URI_LENGTH 2048
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//
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// nsDOMOfflineResourceList
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//
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NS_IMPL_CYCLE_COLLECTION_INHERITED(nsDOMOfflineResourceList,
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DOMEventTargetHelper,
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mCacheUpdate,
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mPendingEvents)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsDOMOfflineResourceList)
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NS_INTERFACE_MAP_ENTRY(nsIDOMOfflineResourceList)
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NS_INTERFACE_MAP_ENTRY(nsIOfflineCacheUpdateObserver)
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NS_INTERFACE_MAP_ENTRY(nsIObserver)
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NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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NS_IMPL_ADDREF_INHERITED(nsDOMOfflineResourceList, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(nsDOMOfflineResourceList, DOMEventTargetHelper)
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NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, checking)
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NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, error)
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NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, noupdate)
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NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, downloading)
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NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, progress)
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NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, cached)
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NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, updateready)
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NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, obsolete)
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nsDOMOfflineResourceList::nsDOMOfflineResourceList(nsIURI *aManifestURI,
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nsIURI *aDocumentURI,
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nsPIDOMWindow *aWindow)
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: DOMEventTargetHelper(aWindow)
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, mInitialized(false)
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, mManifestURI(aManifestURI)
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, mDocumentURI(aDocumentURI)
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, mExposeCacheUpdateStatus(true)
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, mStatus(nsIDOMOfflineResourceList::IDLE)
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, mCachedKeys(nullptr)
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, mCachedKeysCount(0)
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{
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}
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nsDOMOfflineResourceList::~nsDOMOfflineResourceList()
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{
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ClearCachedKeys();
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}
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JSObject*
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nsDOMOfflineResourceList::WrapObject(JSContext* aCx)
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{
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return OfflineResourceListBinding::Wrap(aCx, this);
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}
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nsresult
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nsDOMOfflineResourceList::Init()
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{
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if (mInitialized) {
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return NS_OK;
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}
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if (!mManifestURI) {
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return NS_ERROR_DOM_INVALID_STATE_ERR;
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}
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mManifestURI->GetAsciiSpec(mManifestSpec);
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nsresult rv = nsContentUtils::GetSecurityManager()->
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CheckSameOriginURI(mManifestURI, mDocumentURI, true);
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NS_ENSURE_SUCCESS(rv, rv);
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// Dynamically-managed resources are stored as a separate ownership list
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// from the manifest.
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nsCOMPtr<nsIURI> innerURI = NS_GetInnermostURI(mDocumentURI);
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if (!innerURI)
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return NS_ERROR_FAILURE;
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if (!IS_CHILD_PROCESS())
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{
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mApplicationCacheService =
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do_GetService(NS_APPLICATIONCACHESERVICE_CONTRACTID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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// Check for in-progress cache updates
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nsCOMPtr<nsIOfflineCacheUpdateService> cacheUpdateService =
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do_GetService(NS_OFFLINECACHEUPDATESERVICE_CONTRACTID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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uint32_t numUpdates;
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rv = cacheUpdateService->GetNumUpdates(&numUpdates);
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NS_ENSURE_SUCCESS(rv, rv);
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for (uint32_t i = 0; i < numUpdates; i++) {
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nsCOMPtr<nsIOfflineCacheUpdate> cacheUpdate;
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rv = cacheUpdateService->GetUpdate(i, getter_AddRefs(cacheUpdate));
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NS_ENSURE_SUCCESS(rv, rv);
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UpdateAdded(cacheUpdate);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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}
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// watch for new offline cache updates
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nsCOMPtr<nsIObserverService> observerService =
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mozilla::services::GetObserverService();
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if (!observerService)
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return NS_ERROR_FAILURE;
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rv = observerService->AddObserver(this, "offline-cache-update-added", true);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = observerService->AddObserver(this, "offline-cache-update-completed", true);
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NS_ENSURE_SUCCESS(rv, rv);
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mInitialized = true;
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return NS_OK;
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}
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void
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nsDOMOfflineResourceList::Disconnect()
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{
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mPendingEvents.Clear();
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if (mListenerManager) {
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mListenerManager->Disconnect();
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mListenerManager = nullptr;
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}
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}
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//
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// nsDOMOfflineResourceList::nsIDOMOfflineResourceList
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//
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already_AddRefed<DOMStringList>
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nsDOMOfflineResourceList::GetMozItems(ErrorResult& aRv)
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{
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if (IS_CHILD_PROCESS()) {
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aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
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return nullptr;
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}
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nsRefPtr<DOMStringList> items = new DOMStringList();
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// If we are not associated with an application cache, return an
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// empty list.
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nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
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if (!appCache) {
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return items.forget();
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}
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aRv = Init();
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if (aRv.Failed()) {
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return nullptr;
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}
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uint32_t length;
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char **keys;
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aRv = appCache->GatherEntries(nsIApplicationCache::ITEM_DYNAMIC,
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&length, &keys);
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if (aRv.Failed()) {
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return nullptr;
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}
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for (uint32_t i = 0; i < length; i++) {
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items->Add(NS_ConvertUTF8toUTF16(keys[i]));
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}
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NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(length, keys);
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return items.forget();
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}
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NS_IMETHODIMP
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nsDOMOfflineResourceList::GetMozItems(nsISupports** aItems)
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{
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ErrorResult rv;
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nsRefPtr<DOMStringList> items = GetMozItems(rv);
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items.forget(aItems);
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return rv.ErrorCode();
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}
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NS_IMETHODIMP
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nsDOMOfflineResourceList::MozHasItem(const nsAString& aURI, bool* aExists)
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{
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if (IS_CHILD_PROCESS())
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return NS_ERROR_NOT_IMPLEMENTED;
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nsresult rv = Init();
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
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if (!appCache) {
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return NS_ERROR_DOM_INVALID_STATE_ERR;
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}
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nsAutoCString key;
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rv = GetCacheKey(aURI, key);
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NS_ENSURE_SUCCESS(rv, rv);
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uint32_t types;
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rv = appCache->GetTypes(key, &types);
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if (rv == NS_ERROR_CACHE_KEY_NOT_FOUND) {
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*aExists = false;
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return NS_OK;
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}
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NS_ENSURE_SUCCESS(rv, rv);
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*aExists = ((types & nsIApplicationCache::ITEM_DYNAMIC) != 0);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMOfflineResourceList::GetMozLength(uint32_t *aLength)
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{
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if (IS_CHILD_PROCESS())
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return NS_ERROR_NOT_IMPLEMENTED;
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if (!mManifestURI) {
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*aLength = 0;
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return NS_OK;
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}
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nsresult rv = Init();
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NS_ENSURE_SUCCESS(rv, rv);
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rv = CacheKeys();
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NS_ENSURE_SUCCESS(rv, rv);
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*aLength = mCachedKeysCount;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMOfflineResourceList::MozItem(uint32_t aIndex, nsAString& aURI)
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{
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if (IS_CHILD_PROCESS())
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return NS_ERROR_NOT_IMPLEMENTED;
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nsresult rv = Init();
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NS_ENSURE_SUCCESS(rv, rv);
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SetDOMStringToNull(aURI);
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rv = CacheKeys();
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NS_ENSURE_SUCCESS(rv, rv);
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if (aIndex >= mCachedKeysCount)
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return NS_ERROR_NOT_AVAILABLE;
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CopyUTF8toUTF16(mCachedKeys[aIndex], aURI);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMOfflineResourceList::MozAdd(const nsAString& aURI)
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{
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if (IS_CHILD_PROCESS())
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return NS_ERROR_NOT_IMPLEMENTED;
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nsresult rv = Init();
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NS_ENSURE_SUCCESS(rv, rv);
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if (!nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
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return NS_ERROR_DOM_SECURITY_ERR;
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}
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nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
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if (!appCache) {
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return NS_ERROR_DOM_INVALID_STATE_ERR;
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}
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if (aURI.Length() > MAX_URI_LENGTH) return NS_ERROR_DOM_BAD_URI;
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// this will fail if the URI is not absolute
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nsCOMPtr<nsIURI> requestedURI;
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rv = NS_NewURI(getter_AddRefs(requestedURI), aURI);
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NS_ENSURE_SUCCESS(rv, rv);
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nsAutoCString scheme;
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rv = requestedURI->GetScheme(scheme);
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NS_ENSURE_SUCCESS(rv, rv);
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bool match;
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rv = mManifestURI->SchemeIs(scheme.get(), &match);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!match) {
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return NS_ERROR_DOM_SECURITY_ERR;
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}
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uint32_t length;
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rv = GetMozLength(&length);
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NS_ENSURE_SUCCESS(rv, rv);
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uint32_t maxEntries =
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Preferences::GetUint(kMaxEntriesPref, DEFAULT_MAX_ENTRIES);
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if (length > maxEntries) return NS_ERROR_NOT_AVAILABLE;
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ClearCachedKeys();
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nsCOMPtr<nsIOfflineCacheUpdate> update =
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do_CreateInstance(NS_OFFLINECACHEUPDATE_CONTRACTID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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nsAutoCString clientID;
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rv = appCache->GetClientID(clientID);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = update->InitPartial(mManifestURI, clientID, mDocumentURI);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = update->AddDynamicURI(requestedURI);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = update->Schedule();
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMOfflineResourceList::MozRemove(const nsAString& aURI)
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{
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if (IS_CHILD_PROCESS())
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return NS_ERROR_NOT_IMPLEMENTED;
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nsresult rv = Init();
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NS_ENSURE_SUCCESS(rv, rv);
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if (!nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
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return NS_ERROR_DOM_SECURITY_ERR;
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}
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nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
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if (!appCache) {
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return NS_ERROR_DOM_INVALID_STATE_ERR;
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}
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nsAutoCString key;
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rv = GetCacheKey(aURI, key);
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NS_ENSURE_SUCCESS(rv, rv);
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ClearCachedKeys();
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// XXX: This is a race condition. remove() is specced to remove
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// from the currently associated application cache, but if this
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// happens during an update (or after an update, if we haven't
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// swapped yet), that remove() will be lost when the next update is
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// finished. Need to bring this issue up.
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rv = appCache->UnmarkEntry(key, nsIApplicationCache::ITEM_DYNAMIC);
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMOfflineResourceList::GetStatus(uint16_t *aStatus)
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{
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nsresult rv = Init();
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// Init may fail with INVALID_STATE_ERR if there is no manifest URI.
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// The status attribute should not throw that exception, convert it
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// to an UNCACHED.
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if (rv == NS_ERROR_DOM_INVALID_STATE_ERR ||
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!nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
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*aStatus = nsIDOMOfflineResourceList::UNCACHED;
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return NS_OK;
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}
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NS_ENSURE_SUCCESS(rv, rv);
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// If this object is not associated with a cache, return UNCACHED
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nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
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if (!appCache) {
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*aStatus = nsIDOMOfflineResourceList::UNCACHED;
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return NS_OK;
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}
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// If there is an update in process, use its status.
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if (mCacheUpdate && mExposeCacheUpdateStatus) {
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rv = mCacheUpdate->GetStatus(aStatus);
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if (NS_SUCCEEDED(rv) && *aStatus != nsIDOMOfflineResourceList::IDLE) {
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return NS_OK;
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}
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}
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if (mAvailableApplicationCache) {
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*aStatus = nsIDOMOfflineResourceList::UPDATEREADY;
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return NS_OK;
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}
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*aStatus = mStatus;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMOfflineResourceList::Update()
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{
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nsresult rv = Init();
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NS_ENSURE_SUCCESS(rv, rv);
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if (!nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
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return NS_ERROR_DOM_SECURITY_ERR;
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}
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nsCOMPtr<nsIOfflineCacheUpdateService> updateService =
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do_GetService(NS_OFFLINECACHEUPDATESERVICE_CONTRACTID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIDOMWindow> window =
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do_QueryInterface(GetOwner());
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nsCOMPtr<nsIOfflineCacheUpdate> update;
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rv = updateService->ScheduleUpdate(mManifestURI, mDocumentURI,
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window, getter_AddRefs(update));
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMOfflineResourceList::SwapCache()
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{
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nsresult rv = Init();
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NS_ENSURE_SUCCESS(rv, rv);
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if (!nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
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return NS_ERROR_DOM_SECURITY_ERR;
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}
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nsCOMPtr<nsIApplicationCache> currentAppCache = GetDocumentAppCache();
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if (!currentAppCache) {
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return NS_ERROR_DOM_INVALID_STATE_ERR;
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}
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// Check the current and potentially newly available cache are not identical.
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if (mAvailableApplicationCache == currentAppCache) {
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return NS_ERROR_DOM_INVALID_STATE_ERR;
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}
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if (mAvailableApplicationCache) {
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nsCString currClientId, availClientId;
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currentAppCache->GetClientID(currClientId);
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mAvailableApplicationCache->GetClientID(availClientId);
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if (availClientId == currClientId)
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return NS_ERROR_DOM_INVALID_STATE_ERR;
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} else if (mStatus != OBSOLETE) {
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return NS_ERROR_DOM_INVALID_STATE_ERR;
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}
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ClearCachedKeys();
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nsCOMPtr<nsIApplicationCacheContainer> appCacheContainer =
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GetDocumentAppCacheContainer();
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// In the case of an obsolete cache group, newAppCache might be null.
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// We will disassociate from the cache in that case.
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if (appCacheContainer) {
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rv = appCacheContainer->SetApplicationCache(mAvailableApplicationCache);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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mAvailableApplicationCache = nullptr;
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mStatus = nsIDOMOfflineResourceList::IDLE;
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return NS_OK;
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}
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//
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// nsDOMOfflineResourceList::nsIDOMEventTarget
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//
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void
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nsDOMOfflineResourceList::FirePendingEvents()
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{
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for (int32_t i = 0; i < mPendingEvents.Count(); ++i) {
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bool dummy;
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nsCOMPtr<nsIDOMEvent> event = mPendingEvents[i];
|
|
DispatchEvent(event, &dummy);
|
|
}
|
|
mPendingEvents.Clear();
|
|
}
|
|
|
|
nsresult
|
|
nsDOMOfflineResourceList::SendEvent(const nsAString &aEventName)
|
|
{
|
|
// Don't send events to closed windows
|
|
if (!GetOwner()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!GetOwner()->GetDocShell()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMEvent> event;
|
|
nsresult rv = EventDispatcher::CreateEvent(this, nullptr, nullptr,
|
|
NS_LITERAL_STRING("Events"),
|
|
getter_AddRefs(event));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
event->InitEvent(aEventName, false, true);
|
|
|
|
// We assume anyone that managed to call SendEvent is trusted
|
|
event->SetTrusted(true);
|
|
|
|
// If the window is frozen or we're still catching up on events that were
|
|
// queued while frozen, save the event for later.
|
|
if (GetOwner()->IsFrozen() || mPendingEvents.Count() > 0) {
|
|
mPendingEvents.AppendObject(event);
|
|
return NS_OK;
|
|
}
|
|
|
|
bool dummy;
|
|
DispatchEvent(event, &dummy);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
//
|
|
// nsDOMOfflineResourceList::nsIObserver
|
|
//
|
|
NS_IMETHODIMP
|
|
nsDOMOfflineResourceList::Observe(nsISupports *aSubject,
|
|
const char *aTopic,
|
|
const char16_t *aData)
|
|
{
|
|
if (!strcmp(aTopic, "offline-cache-update-added")) {
|
|
nsCOMPtr<nsIOfflineCacheUpdate> update = do_QueryInterface(aSubject);
|
|
if (update) {
|
|
UpdateAdded(update);
|
|
}
|
|
} else if (!strcmp(aTopic, "offline-cache-update-completed")) {
|
|
nsCOMPtr<nsIOfflineCacheUpdate> update = do_QueryInterface(aSubject);
|
|
if (update) {
|
|
UpdateCompleted(update);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
//
|
|
// nsDOMOfflineResourceList::nsIOfflineCacheUpdateObserver
|
|
//
|
|
NS_IMETHODIMP
|
|
nsDOMOfflineResourceList::UpdateStateChanged(nsIOfflineCacheUpdate *aUpdate,
|
|
uint32_t event)
|
|
{
|
|
mExposeCacheUpdateStatus =
|
|
(event == STATE_CHECKING) ||
|
|
(event == STATE_DOWNLOADING) ||
|
|
(event == STATE_ITEMSTARTED) ||
|
|
(event == STATE_ITEMCOMPLETED) ||
|
|
// During notification of "obsolete" we must expose state of the update
|
|
(event == STATE_OBSOLETE);
|
|
|
|
switch (event) {
|
|
case STATE_ERROR:
|
|
SendEvent(NS_LITERAL_STRING(ERROR_STR));
|
|
break;
|
|
case STATE_CHECKING:
|
|
SendEvent(NS_LITERAL_STRING(CHECKING_STR));
|
|
break;
|
|
case STATE_NOUPDATE:
|
|
SendEvent(NS_LITERAL_STRING(NOUPDATE_STR));
|
|
break;
|
|
case STATE_OBSOLETE:
|
|
mStatus = nsIDOMOfflineResourceList::OBSOLETE;
|
|
mAvailableApplicationCache = nullptr;
|
|
SendEvent(NS_LITERAL_STRING(OBSOLETE_STR));
|
|
break;
|
|
case STATE_DOWNLOADING:
|
|
SendEvent(NS_LITERAL_STRING(DOWNLOADING_STR));
|
|
break;
|
|
case STATE_ITEMSTARTED:
|
|
SendEvent(NS_LITERAL_STRING(PROGRESS_STR));
|
|
break;
|
|
case STATE_ITEMCOMPLETED:
|
|
// Nothing to do here...
|
|
break;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDOMOfflineResourceList::ApplicationCacheAvailable(nsIApplicationCache *aApplicationCache)
|
|
{
|
|
nsCOMPtr<nsIApplicationCache> currentAppCache = GetDocumentAppCache();
|
|
if (currentAppCache) {
|
|
// Document already has a cache, we cannot override it. swapCache is
|
|
// here to do it on demand.
|
|
|
|
// If the newly available cache is identical to the current cache, then
|
|
// just ignore this event.
|
|
if (aApplicationCache == currentAppCache) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCString currClientId, availClientId;
|
|
currentAppCache->GetClientID(currClientId);
|
|
aApplicationCache->GetClientID(availClientId);
|
|
if (availClientId == currClientId) {
|
|
return NS_OK;
|
|
}
|
|
|
|
mAvailableApplicationCache = aApplicationCache;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIApplicationCacheContainer> appCacheContainer =
|
|
GetDocumentAppCacheContainer();
|
|
|
|
if (appCacheContainer) {
|
|
appCacheContainer->SetApplicationCache(aApplicationCache);
|
|
}
|
|
|
|
mAvailableApplicationCache = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsDOMOfflineResourceList::GetCacheKey(const nsAString &aURI, nsCString &aKey)
|
|
{
|
|
nsCOMPtr<nsIURI> requestedURI;
|
|
nsresult rv = NS_NewURI(getter_AddRefs(requestedURI), aURI);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return GetCacheKey(requestedURI, aKey);
|
|
}
|
|
|
|
nsresult
|
|
nsDOMOfflineResourceList::UpdateAdded(nsIOfflineCacheUpdate *aUpdate)
|
|
{
|
|
// Ignore partial updates.
|
|
bool partial;
|
|
nsresult rv = aUpdate->GetPartial(&partial);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (partial) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> updateURI;
|
|
rv = aUpdate->GetManifestURI(getter_AddRefs(updateURI));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
bool equals;
|
|
rv = updateURI->Equals(mManifestURI, &equals);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (!equals) {
|
|
// This update doesn't belong to us
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_ENSURE_TRUE(!mCacheUpdate, NS_ERROR_FAILURE);
|
|
|
|
// We don't need to emit signals here. Updates are either added
|
|
// when they are scheduled (in which case they are always IDLE) or
|
|
// they are added when the applicationCache object is initialized, so there
|
|
// are no listeners to accept signals anyway.
|
|
|
|
mCacheUpdate = aUpdate;
|
|
mCacheUpdate->AddObserver(this, true);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<nsIApplicationCacheContainer>
|
|
nsDOMOfflineResourceList::GetDocumentAppCacheContainer()
|
|
{
|
|
nsCOMPtr<nsIWebNavigation> webnav = do_GetInterface(GetOwner());
|
|
if (!webnav) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsIApplicationCacheContainer> appCacheContainer =
|
|
do_GetInterface(webnav);
|
|
return appCacheContainer.forget();
|
|
}
|
|
|
|
already_AddRefed<nsIApplicationCache>
|
|
nsDOMOfflineResourceList::GetDocumentAppCache()
|
|
{
|
|
nsCOMPtr<nsIApplicationCacheContainer> appCacheContainer =
|
|
GetDocumentAppCacheContainer();
|
|
|
|
if (appCacheContainer) {
|
|
nsCOMPtr<nsIApplicationCache> applicationCache;
|
|
appCacheContainer->GetApplicationCache(
|
|
getter_AddRefs(applicationCache));
|
|
return applicationCache.forget();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
nsresult
|
|
nsDOMOfflineResourceList::UpdateCompleted(nsIOfflineCacheUpdate *aUpdate)
|
|
{
|
|
if (aUpdate != mCacheUpdate) {
|
|
// This isn't the update we're watching.
|
|
return NS_OK;
|
|
}
|
|
|
|
bool partial;
|
|
mCacheUpdate->GetPartial(&partial);
|
|
bool isUpgrade;
|
|
mCacheUpdate->GetIsUpgrade(&isUpgrade);
|
|
|
|
bool succeeded;
|
|
nsresult rv = mCacheUpdate->GetSucceeded(&succeeded);
|
|
|
|
mCacheUpdate->RemoveObserver(this);
|
|
mCacheUpdate = nullptr;
|
|
|
|
if (NS_SUCCEEDED(rv) && succeeded && !partial) {
|
|
mStatus = nsIDOMOfflineResourceList::IDLE;
|
|
if (isUpgrade) {
|
|
SendEvent(NS_LITERAL_STRING(UPDATEREADY_STR));
|
|
} else {
|
|
SendEvent(NS_LITERAL_STRING(CACHED_STR));
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsDOMOfflineResourceList::GetCacheKey(nsIURI *aURI, nsCString &aKey)
|
|
{
|
|
nsresult rv = aURI->GetAsciiSpec(aKey);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// url fragments aren't used in cache keys
|
|
nsAutoCString::const_iterator specStart, specEnd;
|
|
aKey.BeginReading(specStart);
|
|
aKey.EndReading(specEnd);
|
|
if (FindCharInReadable('#', specStart, specEnd)) {
|
|
aKey.BeginReading(specEnd);
|
|
aKey = Substring(specEnd, specStart);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsDOMOfflineResourceList::CacheKeys()
|
|
{
|
|
if (IS_CHILD_PROCESS())
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
|
|
if (mCachedKeys)
|
|
return NS_OK;
|
|
|
|
nsCOMPtr<nsIDOMWindow> window = do_QueryInterface(GetOwner());
|
|
nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(window);
|
|
nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(webNav);
|
|
|
|
uint32_t appId = 0;
|
|
bool inBrowser = false;
|
|
if (loadContext) {
|
|
loadContext->GetAppId(&appId);
|
|
loadContext->GetIsInBrowserElement(&inBrowser);
|
|
}
|
|
|
|
nsAutoCString groupID;
|
|
mApplicationCacheService->BuildGroupIDForApp(
|
|
mManifestURI, appId, inBrowser, groupID);
|
|
|
|
nsCOMPtr<nsIApplicationCache> appCache;
|
|
mApplicationCacheService->GetActiveCache(groupID,
|
|
getter_AddRefs(appCache));
|
|
|
|
if (!appCache) {
|
|
return NS_ERROR_DOM_INVALID_STATE_ERR;
|
|
}
|
|
|
|
return appCache->GatherEntries(nsIApplicationCache::ITEM_DYNAMIC,
|
|
&mCachedKeysCount, &mCachedKeys);
|
|
}
|
|
|
|
void
|
|
nsDOMOfflineResourceList::ClearCachedKeys()
|
|
{
|
|
if (mCachedKeys) {
|
|
NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(mCachedKeysCount, mCachedKeys);
|
|
mCachedKeys = nullptr;
|
|
mCachedKeysCount = 0;
|
|
}
|
|
}
|