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gecko/dom/offline/nsDOMOfflineResourceList.cpp
Nathan Froyd e4e2da55c9 Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat 
The bulk of this commit was generated with a script, executed at the top
level of a typical source code checkout.  The only non-machine-generated
part was modifying MFBT's moz.build to reflect the new naming.

CLOSED TREE makes big refactorings like this a piece of cake.

 # The main substitution.
find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \
    xargs perl -p -i -e '
 s/nsRefPtr\.h/RefPtr\.h/g; # handle includes
 s/nsRefPtr ?</RefPtr</g;   # handle declarations and variables
'

 # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h.
perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h

 # Handle nsRefPtr.h itself, a couple places that define constructors
 # from nsRefPtr, and code generators specially.  We do this here, rather
 # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename
 # things like nsRefPtrHashtable.
perl -p -i -e 's/nsRefPtr/RefPtr/g' \
     mfbt/nsRefPtr.h \
     xpcom/glue/nsCOMPtr.h \
     xpcom/base/OwningNonNull.h \
     ipc/ipdl/ipdl/lower.py \
     ipc/ipdl/ipdl/builtin.py \
     dom/bindings/Codegen.py \
     python/lldbutils/lldbutils/utils.py

 # In our indiscriminate substitution above, we renamed
 # nsRefPtrGetterAddRefs, the class behind getter_AddRefs.  Fix that up.
find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \
    xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g'

if [ -d .git ]; then
    git mv mfbt/nsRefPtr.h mfbt/RefPtr.h
else
    hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h
fi
2015-10-18 01:24:48 -04:00

848 lines
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/* -*- 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 "nsAutoPtr.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 "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,
nsPIDOMWindow *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<nsIDOMWindow> window =
do_QueryInterface(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);
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;
}
}
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