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-rw-r--r--dom/offline/nsDOMOfflineResourceList.cpp848
1 files changed, 848 insertions, 0 deletions
diff --git a/dom/offline/nsDOMOfflineResourceList.cpp b/dom/offline/nsDOMOfflineResourceList.cpp
new file mode 100644
index 000000000..fa3409ff4
--- /dev/null
+++ b/dom/offline/nsDOMOfflineResourceList.cpp
@@ -0,0 +1,848 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsDOMOfflineResourceList.h"
+#include "nsIDOMEvent.h"
+#include "nsIScriptSecurityManager.h"
+#include "nsError.h"
+#include "mozilla/dom/DOMStringList.h"
+#include "nsIPrefetchService.h"
+#include "nsCPrefetchService.h"
+#include "nsNetUtil.h"
+#include "nsNetCID.h"
+#include "nsServiceManagerUtils.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsIOfflineCacheUpdate.h"
+#include "nsContentUtils.h"
+#include "nsIObserverService.h"
+#include "nsIScriptGlobalObject.h"
+#include "nsIWebNavigation.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/OfflineResourceListBinding.h"
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/BasePrincipal.h"
+
+#include "nsXULAppAPI.h"
+#define IS_CHILD_PROCESS() \
+ (GeckoProcessType_Default != XRE_GetProcessType())
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+// Event names
+
+#define CHECKING_STR "checking"
+#define ERROR_STR "error"
+#define NOUPDATE_STR "noupdate"
+#define DOWNLOADING_STR "downloading"
+#define PROGRESS_STR "progress"
+#define CACHED_STR "cached"
+#define UPDATEREADY_STR "updateready"
+#define OBSOLETE_STR "obsolete"
+
+// To prevent abuse of the resource list for data storage, the number
+// of offline urls and their length are limited.
+
+static const char kMaxEntriesPref[] = "offline.max_site_resources";
+#define DEFAULT_MAX_ENTRIES 100
+#define MAX_URI_LENGTH 2048
+
+//
+// nsDOMOfflineResourceList
+//
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(nsDOMOfflineResourceList,
+ DOMEventTargetHelper,
+ mCacheUpdate,
+ mPendingEvents)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsDOMOfflineResourceList)
+ NS_INTERFACE_MAP_ENTRY(nsIDOMOfflineResourceList)
+ NS_INTERFACE_MAP_ENTRY(nsIOfflineCacheUpdateObserver)
+ NS_INTERFACE_MAP_ENTRY(nsIObserver)
+ NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
+
+NS_IMPL_ADDREF_INHERITED(nsDOMOfflineResourceList, DOMEventTargetHelper)
+NS_IMPL_RELEASE_INHERITED(nsDOMOfflineResourceList, DOMEventTargetHelper)
+
+NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, checking)
+NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, error)
+NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, noupdate)
+NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, downloading)
+NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, progress)
+NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, cached)
+NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, updateready)
+NS_IMPL_EVENT_HANDLER(nsDOMOfflineResourceList, obsolete)
+
+nsDOMOfflineResourceList::nsDOMOfflineResourceList(nsIURI *aManifestURI,
+ nsIURI *aDocumentURI,
+ nsIPrincipal *aLoadingPrincipal,
+ nsPIDOMWindowInner *aWindow)
+ : DOMEventTargetHelper(aWindow)
+ , mInitialized(false)
+ , mManifestURI(aManifestURI)
+ , mDocumentURI(aDocumentURI)
+ , mLoadingPrincipal(aLoadingPrincipal)
+ , mExposeCacheUpdateStatus(true)
+ , mStatus(nsIDOMOfflineResourceList::IDLE)
+ , mCachedKeys(nullptr)
+ , mCachedKeysCount(0)
+{
+}
+
+nsDOMOfflineResourceList::~nsDOMOfflineResourceList()
+{
+ ClearCachedKeys();
+}
+
+JSObject*
+nsDOMOfflineResourceList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+ return OfflineResourceListBinding::Wrap(aCx, this, aGivenProto);
+}
+
+nsresult
+nsDOMOfflineResourceList::Init()
+{
+ if (mInitialized) {
+ return NS_OK;
+ }
+
+ if (!mManifestURI) {
+ return NS_ERROR_DOM_INVALID_STATE_ERR;
+ }
+
+ mManifestURI->GetAsciiSpec(mManifestSpec);
+
+ nsresult rv = nsContentUtils::GetSecurityManager()->
+ CheckSameOriginURI(mManifestURI, mDocumentURI, true);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // Dynamically-managed resources are stored as a separate ownership list
+ // from the manifest.
+ nsCOMPtr<nsIURI> innerURI = NS_GetInnermostURI(mDocumentURI);
+ if (!innerURI)
+ return NS_ERROR_FAILURE;
+
+ if (!IS_CHILD_PROCESS())
+ {
+ mApplicationCacheService =
+ do_GetService(NS_APPLICATIONCACHESERVICE_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // Check for in-progress cache updates
+ nsCOMPtr<nsIOfflineCacheUpdateService> cacheUpdateService =
+ do_GetService(NS_OFFLINECACHEUPDATESERVICE_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ uint32_t numUpdates;
+ rv = cacheUpdateService->GetNumUpdates(&numUpdates);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ for (uint32_t i = 0; i < numUpdates; i++) {
+ nsCOMPtr<nsIOfflineCacheUpdate> cacheUpdate;
+ rv = cacheUpdateService->GetUpdate(i, getter_AddRefs(cacheUpdate));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ UpdateAdded(cacheUpdate);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+ }
+
+ // watch for new offline cache updates
+ nsCOMPtr<nsIObserverService> observerService =
+ mozilla::services::GetObserverService();
+ if (!observerService)
+ return NS_ERROR_FAILURE;
+
+ rv = observerService->AddObserver(this, "offline-cache-update-added", true);
+ NS_ENSURE_SUCCESS(rv, rv);
+ rv = observerService->AddObserver(this, "offline-cache-update-completed", true);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ mInitialized = true;
+
+ return NS_OK;
+}
+
+void
+nsDOMOfflineResourceList::Disconnect()
+{
+ mPendingEvents.Clear();
+
+ if (mListenerManager) {
+ mListenerManager->Disconnect();
+ mListenerManager = nullptr;
+ }
+}
+
+//
+// nsDOMOfflineResourceList::nsIDOMOfflineResourceList
+//
+
+already_AddRefed<DOMStringList>
+nsDOMOfflineResourceList::GetMozItems(ErrorResult& aRv)
+{
+ if (IS_CHILD_PROCESS()) {
+ aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
+ return nullptr;
+ }
+
+ RefPtr<DOMStringList> items = new DOMStringList();
+
+ // If we are not associated with an application cache, return an
+ // empty list.
+ nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
+ if (!appCache) {
+ return items.forget();
+ }
+
+ aRv = Init();
+ if (aRv.Failed()) {
+ return nullptr;
+ }
+
+ uint32_t length;
+ char **keys;
+ aRv = appCache->GatherEntries(nsIApplicationCache::ITEM_DYNAMIC,
+ &length, &keys);
+ if (aRv.Failed()) {
+ return nullptr;
+ }
+
+ for (uint32_t i = 0; i < length; i++) {
+ items->Add(NS_ConvertUTF8toUTF16(keys[i]));
+ }
+
+ NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(length, keys);
+
+ return items.forget();
+}
+
+NS_IMETHODIMP
+nsDOMOfflineResourceList::GetMozItems(nsISupports** aItems)
+{
+ ErrorResult rv;
+ RefPtr<DOMStringList> items = GetMozItems(rv);
+ items.forget(aItems);
+ return rv.StealNSResult();
+}
+
+NS_IMETHODIMP
+nsDOMOfflineResourceList::MozHasItem(const nsAString& aURI, bool* aExists)
+{
+ if (IS_CHILD_PROCESS())
+ return NS_ERROR_NOT_IMPLEMENTED;
+
+ nsresult rv = Init();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
+ if (!appCache) {
+ return NS_ERROR_DOM_INVALID_STATE_ERR;
+ }
+
+ nsAutoCString key;
+ rv = GetCacheKey(aURI, key);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ uint32_t types;
+ rv = appCache->GetTypes(key, &types);
+ if (rv == NS_ERROR_CACHE_KEY_NOT_FOUND) {
+ *aExists = false;
+ return NS_OK;
+ }
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ *aExists = ((types & nsIApplicationCache::ITEM_DYNAMIC) != 0);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMOfflineResourceList::GetMozLength(uint32_t *aLength)
+{
+ if (IS_CHILD_PROCESS())
+ return NS_ERROR_NOT_IMPLEMENTED;
+
+ if (!mManifestURI) {
+ *aLength = 0;
+ return NS_OK;
+ }
+
+ nsresult rv = Init();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = CacheKeys();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ *aLength = mCachedKeysCount;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMOfflineResourceList::MozItem(uint32_t aIndex, nsAString& aURI)
+{
+ if (IS_CHILD_PROCESS())
+ return NS_ERROR_NOT_IMPLEMENTED;
+
+ nsresult rv = Init();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ SetDOMStringToNull(aURI);
+
+ rv = CacheKeys();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (aIndex >= mCachedKeysCount)
+ return NS_ERROR_NOT_AVAILABLE;
+
+ CopyUTF8toUTF16(mCachedKeys[aIndex], aURI);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMOfflineResourceList::MozAdd(const nsAString& aURI)
+{
+ if (IS_CHILD_PROCESS())
+ return NS_ERROR_NOT_IMPLEMENTED;
+
+ nsresult rv = Init();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (!nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
+ return NS_ERROR_DOM_SECURITY_ERR;
+ }
+
+ nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
+ if (!appCache) {
+ return NS_ERROR_DOM_INVALID_STATE_ERR;
+ }
+
+ if (aURI.Length() > MAX_URI_LENGTH) return NS_ERROR_DOM_BAD_URI;
+
+ // this will fail if the URI is not absolute
+ nsCOMPtr<nsIURI> requestedURI;
+ rv = NS_NewURI(getter_AddRefs(requestedURI), aURI);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsAutoCString scheme;
+ rv = requestedURI->GetScheme(scheme);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ bool match;
+ rv = mManifestURI->SchemeIs(scheme.get(), &match);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (!match) {
+ return NS_ERROR_DOM_SECURITY_ERR;
+ }
+
+ uint32_t length;
+ rv = GetMozLength(&length);
+ NS_ENSURE_SUCCESS(rv, rv);
+ uint32_t maxEntries =
+ Preferences::GetUint(kMaxEntriesPref, DEFAULT_MAX_ENTRIES);
+
+ if (length > maxEntries) return NS_ERROR_NOT_AVAILABLE;
+
+ ClearCachedKeys();
+
+ nsCOMPtr<nsIOfflineCacheUpdate> update =
+ do_CreateInstance(NS_OFFLINECACHEUPDATE_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsAutoCString clientID;
+ rv = appCache->GetClientID(clientID);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = update->InitPartial(mManifestURI, clientID,
+ mDocumentURI, mLoadingPrincipal);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = update->AddDynamicURI(requestedURI);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = update->Schedule();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMOfflineResourceList::MozRemove(const nsAString& aURI)
+{
+ if (IS_CHILD_PROCESS())
+ return NS_ERROR_NOT_IMPLEMENTED;
+
+ nsresult rv = Init();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (!nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
+ return NS_ERROR_DOM_SECURITY_ERR;
+ }
+
+ nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
+ if (!appCache) {
+ return NS_ERROR_DOM_INVALID_STATE_ERR;
+ }
+
+ nsAutoCString key;
+ rv = GetCacheKey(aURI, key);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ ClearCachedKeys();
+
+ // XXX: This is a race condition. remove() is specced to remove
+ // from the currently associated application cache, but if this
+ // happens during an update (or after an update, if we haven't
+ // swapped yet), that remove() will be lost when the next update is
+ // finished. Need to bring this issue up.
+
+ rv = appCache->UnmarkEntry(key, nsIApplicationCache::ITEM_DYNAMIC);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMOfflineResourceList::GetStatus(uint16_t *aStatus)
+{
+ nsresult rv = Init();
+
+ // Init may fail with INVALID_STATE_ERR if there is no manifest URI.
+ // The status attribute should not throw that exception, convert it
+ // to an UNCACHED.
+ if (rv == NS_ERROR_DOM_INVALID_STATE_ERR ||
+ !nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
+ *aStatus = nsIDOMOfflineResourceList::UNCACHED;
+ return NS_OK;
+ }
+
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // If this object is not associated with a cache, return UNCACHED
+ nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
+ if (!appCache) {
+ *aStatus = nsIDOMOfflineResourceList::UNCACHED;
+ return NS_OK;
+ }
+
+
+ // If there is an update in process, use its status.
+ if (mCacheUpdate && mExposeCacheUpdateStatus) {
+ rv = mCacheUpdate->GetStatus(aStatus);
+ if (NS_SUCCEEDED(rv) && *aStatus != nsIDOMOfflineResourceList::IDLE) {
+ return NS_OK;
+ }
+ }
+
+ if (mAvailableApplicationCache) {
+ *aStatus = nsIDOMOfflineResourceList::UPDATEREADY;
+ return NS_OK;
+ }
+
+ *aStatus = mStatus;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMOfflineResourceList::Update()
+{
+ nsresult rv = Init();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (!nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
+ return NS_ERROR_DOM_SECURITY_ERR;
+ }
+
+ nsCOMPtr<nsIOfflineCacheUpdateService> updateService =
+ do_GetService(NS_OFFLINECACHEUPDATESERVICE_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsCOMPtr<nsPIDOMWindowInner> window = GetOwner();
+
+ nsCOMPtr<nsIOfflineCacheUpdate> update;
+ rv = updateService->ScheduleUpdate(mManifestURI, mDocumentURI, mLoadingPrincipal,
+ window, getter_AddRefs(update));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMOfflineResourceList::SwapCache()
+{
+ nsresult rv = Init();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (!nsContentUtils::OfflineAppAllowed(mDocumentURI)) {
+ return NS_ERROR_DOM_SECURITY_ERR;
+ }
+
+ nsCOMPtr<nsIApplicationCache> currentAppCache = GetDocumentAppCache();
+ if (!currentAppCache) {
+ return NS_ERROR_DOM_INVALID_STATE_ERR;
+ }
+
+ // Check the current and potentially newly available cache are not identical.
+ if (mAvailableApplicationCache == currentAppCache) {
+ return NS_ERROR_DOM_INVALID_STATE_ERR;
+ }
+
+ if (mAvailableApplicationCache) {
+ nsCString currClientId, availClientId;
+ currentAppCache->GetClientID(currClientId);
+ mAvailableApplicationCache->GetClientID(availClientId);
+ if (availClientId == currClientId)
+ return NS_ERROR_DOM_INVALID_STATE_ERR;
+ } else if (mStatus != OBSOLETE) {
+ return NS_ERROR_DOM_INVALID_STATE_ERR;
+ }
+
+ ClearCachedKeys();
+
+ nsCOMPtr<nsIApplicationCacheContainer> appCacheContainer =
+ GetDocumentAppCacheContainer();
+
+ // In the case of an obsolete cache group, newAppCache might be null.
+ // We will disassociate from the cache in that case.
+ if (appCacheContainer) {
+ rv = appCacheContainer->SetApplicationCache(mAvailableApplicationCache);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ mAvailableApplicationCache = nullptr;
+ mStatus = nsIDOMOfflineResourceList::IDLE;
+
+ return NS_OK;
+}
+
+//
+// nsDOMOfflineResourceList::nsIDOMEventTarget
+//
+
+void
+nsDOMOfflineResourceList::FirePendingEvents()
+{
+ for (int32_t i = 0; i < mPendingEvents.Count(); ++i) {
+ bool dummy;
+ 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;
+ }
+
+ RefPtr<Event> event = NS_NewDOMEvent(this, nullptr, nullptr);
+ 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);
+
+ nsAutoCString originSuffix;
+ if (loadContext) {
+ mozilla::DocShellOriginAttributes oa;
+ bool ok = loadContext->GetOriginAttributes(oa);
+ NS_ENSURE_TRUE(ok, NS_ERROR_UNEXPECTED);
+
+ oa.CreateSuffix(originSuffix);
+ }
+
+ nsAutoCString groupID;
+ mApplicationCacheService->BuildGroupIDForSuffix(
+ mManifestURI, originSuffix, 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;
+ }
+}