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gecko-dev/uriloader/prefetch/nsOfflineCacheUpdateService.cpp
Kris Maglione 257d9118dc Bug 1409249: Require singleton constructors to return explicit already_AddRefed. r=froydnj 
Right now, NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR expects singleton
constructors to return already-addrefed raw pointers, and while it accepts
constructors that return already_AddRefed, most existing don't do so.

Meanwhile, the convention elsewhere is that a raw pointer return value is
owned by the callee, and that the caller needs to addref it if it wants to
keep its own reference to it.

The difference in convention makes it easy to leak (I've definitely caused
more than one shutdown leak this way), so it would be better if we required
the singleton getters to return an explicit already_AddRefed, which would
behave the same for all callers.


This also cleans up several singleton constructors that left a dangling
pointer to their singletons when their initialization methods failed, when
they released their references without clearing their global raw pointers.

MozReview-Commit-ID: 9peyG4pRYcr

--HG--
extra : rebase_source : 2f5bd89c17cb554541be38444672a827c1392f3f
2017-10-16 21:08:42 -07:00

732 lines
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/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "OfflineCacheUpdateChild.h"
#include "OfflineCacheUpdateParent.h"
#include "nsXULAppAPI.h"
#include "OfflineCacheUpdateGlue.h"
#include "nsOfflineCacheUpdate.h"
#include "nsCPrefetchService.h"
#include "nsCURILoader.h"
#include "nsIApplicationCacheContainer.h"
#include "nsIApplicationCacheChannel.h"
#include "nsIApplicationCacheService.h"
#include "nsICachingChannel.h"
#include "nsIContent.h"
#include "nsIDocShell.h"
#include "nsIDocumentLoader.h"
#include "nsIDOMElement.h"
#include "nsIDOMWindow.h"
#include "nsIDOMOfflineResourceList.h"
#include "nsIDocument.h"
#include "nsIObserverService.h"
#include "nsIURL.h"
#include "nsIWebProgress.h"
#include "nsIWebNavigation.h"
#include "nsICryptoHash.h"
#include "nsIPermissionManager.h"
#include "nsIPrincipal.h"
#include "nsNetCID.h"
#include "nsServiceManagerUtils.h"
#include "nsStreamUtils.h"
#include "nsThreadUtils.h"
#include "nsProxyRelease.h"
#include "mozilla/Logging.h"
#include "nsIAsyncVerifyRedirectCallback.h"
#include "mozilla/Preferences.h"
#include "mozilla/Attributes.h"
#include "mozilla/Unused.h"
#include "nsIDiskSpaceWatcher.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeOwner.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/PermissionMessageUtils.h"
#include "nsContentUtils.h"
#include "mozilla/Unused.h"
using namespace mozilla;
using namespace mozilla::dom;
static nsOfflineCacheUpdateService *gOfflineCacheUpdateService = nullptr;
static bool sAllowOfflineCache = true;
nsTHashtable<nsCStringHashKey>* nsOfflineCacheUpdateService::mAllowedDomains = nullptr;
nsTHashtable<nsCStringHashKey>* nsOfflineCacheUpdateService::AllowedDomains()
{
if (!mAllowedDomains)
mAllowedDomains = new nsTHashtable<nsCStringHashKey>();
return mAllowedDomains;
}
typedef mozilla::docshell::OfflineCacheUpdateParent OfflineCacheUpdateParent;
typedef mozilla::docshell::OfflineCacheUpdateChild OfflineCacheUpdateChild;
typedef mozilla::docshell::OfflineCacheUpdateGlue OfflineCacheUpdateGlue;
//
// To enable logging (see mozilla/Logging.h for full details):
//
// set MOZ_LOG=nsOfflineCacheUpdate:5
// set MOZ_LOG_FILE=offlineupdate.log
//
// this enables LogLevel::Debug level information and places all output in
// the file offlineupdate.log
//
LazyLogModule gOfflineCacheUpdateLog("nsOfflineCacheUpdate");
#undef LOG
#define LOG(args) MOZ_LOG(gOfflineCacheUpdateLog, mozilla::LogLevel::Debug, args)
#undef LOG_ENABLED
#define LOG_ENABLED() MOZ_LOG_TEST(gOfflineCacheUpdateLog, mozilla::LogLevel::Debug)
//-----------------------------------------------------------------------------
// nsOfflineCachePendingUpdate
//-----------------------------------------------------------------------------
class nsOfflineCachePendingUpdate final : public nsIWebProgressListener
, public nsSupportsWeakReference
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIWEBPROGRESSLISTENER
nsOfflineCachePendingUpdate(nsOfflineCacheUpdateService *aService,
nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIPrincipal* aLoadingPrincipal,
nsIDOMDocument *aDocument)
: mService(aService)
, mManifestURI(aManifestURI)
, mDocumentURI(aDocumentURI)
, mLoadingPrincipal(aLoadingPrincipal)
, mDidReleaseThis(false)
{
mDocument = do_GetWeakReference(aDocument);
}
private:
~nsOfflineCachePendingUpdate() {}
RefPtr<nsOfflineCacheUpdateService> mService;
nsCOMPtr<nsIURI> mManifestURI;
nsCOMPtr<nsIURI> mDocumentURI;
nsCOMPtr<nsIPrincipal> mLoadingPrincipal;
nsCOMPtr<nsIWeakReference> mDocument;
bool mDidReleaseThis;
};
NS_IMPL_ISUPPORTS(nsOfflineCachePendingUpdate,
nsIWebProgressListener,
nsISupportsWeakReference)
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsIWebProgressListener
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnProgressChange(nsIWebProgress *aProgress,
nsIRequest *aRequest,
int32_t curSelfProgress,
int32_t maxSelfProgress,
int32_t curTotalProgress,
int32_t maxTotalProgress)
{
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnStateChange(nsIWebProgress* aWebProgress,
nsIRequest *aRequest,
uint32_t progressStateFlags,
nsresult aStatus)
{
if (mDidReleaseThis) {
return NS_OK;
}
nsCOMPtr<nsIDOMDocument> updateDoc = do_QueryReferent(mDocument);
if (!updateDoc) {
// The document that scheduled this update has gone away,
// we don't need to listen anymore.
aWebProgress->RemoveProgressListener(this);
MOZ_ASSERT(!mDidReleaseThis);
mDidReleaseThis = true;
NS_RELEASE_THIS();
return NS_OK;
}
if (!(progressStateFlags & STATE_STOP)) {
return NS_OK;
}
nsCOMPtr<mozIDOMWindowProxy> windowProxy;
aWebProgress->GetDOMWindow(getter_AddRefs(windowProxy));
if (!windowProxy) return NS_OK;
auto* outerWindow = nsPIDOMWindowOuter::From(windowProxy);
nsPIDOMWindowInner* innerWindow = outerWindow->GetCurrentInnerWindow();
nsCOMPtr<nsIDocument> progressDoc = outerWindow->GetDoc();
if (!progressDoc) return NS_OK;
if (!SameCOMIdentity(progressDoc, updateDoc)) {
return NS_OK;
}
LOG(("nsOfflineCachePendingUpdate::OnStateChange [%p, doc=%p]",
this, progressDoc.get()));
// Only schedule the update if the document loaded successfully
if (NS_SUCCEEDED(aStatus)) {
nsCOMPtr<nsIOfflineCacheUpdate> update;
mService->Schedule(mManifestURI, mDocumentURI, mLoadingPrincipal, updateDoc, innerWindow,
nullptr, getter_AddRefs(update));
if (mDidReleaseThis) {
return NS_OK;
}
}
aWebProgress->RemoveProgressListener(this);
MOZ_ASSERT(!mDidReleaseThis);
mDidReleaseThis = true;
NS_RELEASE_THIS();
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnLocationChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsIURI *location,
uint32_t aFlags)
{
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnStatusChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsresult aStatus,
const char16_t* aMessage)
{
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCachePendingUpdate::OnSecurityChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
uint32_t state)
{
NS_NOTREACHED("notification excluded in AddProgressListener(...)");
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsISupports
//-----------------------------------------------------------------------------
NS_IMPL_ISUPPORTS(nsOfflineCacheUpdateService,
nsIOfflineCacheUpdateService,
nsIObserver,
nsISupportsWeakReference)
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService <public>
//-----------------------------------------------------------------------------
nsOfflineCacheUpdateService::nsOfflineCacheUpdateService()
: mDisabled(false)
, mUpdateRunning(false)
, mLowFreeSpace(false)
{
MOZ_ASSERT(NS_IsMainThread());
Preferences::AddBoolVarCache(&sAllowOfflineCache,
"browser.cache.offline.enable",
true);
}
nsOfflineCacheUpdateService::~nsOfflineCacheUpdateService()
{
gOfflineCacheUpdateService = nullptr;
}
nsresult
nsOfflineCacheUpdateService::Init()
{
// Observe xpcom-shutdown event
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (!observerService)
return NS_ERROR_FAILURE;
nsresult rv = observerService->AddObserver(this,
NS_XPCOM_SHUTDOWN_OBSERVER_ID,
true);
NS_ENSURE_SUCCESS(rv, rv);
// Get the current status of the disk in terms of free space and observe
// low device storage notifications.
nsCOMPtr<nsIDiskSpaceWatcher> diskSpaceWatcherService =
do_GetService("@mozilla.org/toolkit/disk-space-watcher;1");
if (diskSpaceWatcherService) {
diskSpaceWatcherService->GetIsDiskFull(&mLowFreeSpace);
} else {
NS_WARNING("Could not get disk status from nsIDiskSpaceWatcher");
}
rv = observerService->AddObserver(this, "disk-space-watcher", false);
NS_ENSURE_SUCCESS(rv, rv);
gOfflineCacheUpdateService = this;
return NS_OK;
}
/* static */
already_AddRefed<nsOfflineCacheUpdateService>
nsOfflineCacheUpdateService::GetInstance()
{
if (!gOfflineCacheUpdateService) {
auto serv = MakeRefPtr<nsOfflineCacheUpdateService>();
gOfflineCacheUpdateService = serv.get();
if (NS_FAILED(serv->Init())) {
gOfflineCacheUpdateService = nullptr;
return nullptr;
}
return serv.forget();
}
return do_AddRef(gOfflineCacheUpdateService);
}
/* static */
nsOfflineCacheUpdateService *
nsOfflineCacheUpdateService::EnsureService()
{
if (!gOfflineCacheUpdateService) {
// Make the service manager hold a long-lived reference to the service
nsCOMPtr<nsIOfflineCacheUpdateService> service =
do_GetService(NS_OFFLINECACHEUPDATESERVICE_CONTRACTID);
}
return gOfflineCacheUpdateService;
}
nsresult
nsOfflineCacheUpdateService::ScheduleUpdate(nsOfflineCacheUpdate *aUpdate)
{
LOG(("nsOfflineCacheUpdateService::Schedule [%p, update=%p]",
this, aUpdate));
aUpdate->SetOwner(this);
mUpdates.AppendElement(aUpdate);
ProcessNextUpdate();
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::ScheduleOnDocumentStop(nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIPrincipal* aLoadingPrincipal,
nsIDOMDocument *aDocument)
{
LOG(("nsOfflineCacheUpdateService::ScheduleOnDocumentStop [%p, manifestURI=%p, documentURI=%p doc=%p]",
this, aManifestURI, aDocumentURI, aDocument));
nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDocument);
nsCOMPtr<nsIWebProgress> progress = do_QueryInterface(doc->GetContainer());
NS_ENSURE_TRUE(progress, NS_ERROR_INVALID_ARG);
// Proceed with cache update
RefPtr<nsOfflineCachePendingUpdate> update =
new nsOfflineCachePendingUpdate(this, aManifestURI, aDocumentURI,
aLoadingPrincipal, aDocument);
NS_ENSURE_TRUE(update, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = progress->AddProgressListener
(update, nsIWebProgress::NOTIFY_STATE_DOCUMENT);
NS_ENSURE_SUCCESS(rv, rv);
// The update will release when it has scheduled itself.
Unused << update.forget();
return NS_OK;
}
nsresult
nsOfflineCacheUpdateService::UpdateFinished(nsOfflineCacheUpdate *aUpdate)
{
LOG(("nsOfflineCacheUpdateService::UpdateFinished [%p, update=%p]",
this, aUpdate));
NS_ASSERTION(mUpdates.Length() > 0 &&
mUpdates[0] == aUpdate, "Unknown update completed");
// keep this item alive until we're done notifying observers
RefPtr<nsOfflineCacheUpdate> update = mUpdates[0];
Unused << update;
mUpdates.RemoveElementAt(0);
mUpdateRunning = false;
ProcessNextUpdate();
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService <private>
//-----------------------------------------------------------------------------
nsresult
nsOfflineCacheUpdateService::ProcessNextUpdate()
{
LOG(("nsOfflineCacheUpdateService::ProcessNextUpdate [%p, num=%zu]",
this, mUpdates.Length()));
if (mDisabled)
return NS_ERROR_ABORT;
if (mUpdateRunning)
return NS_OK;
if (mUpdates.Length() > 0) {
mUpdateRunning = true;
// Canceling the update before Begin() call will make the update
// asynchronously finish with an error.
if (mLowFreeSpace) {
mUpdates[0]->Cancel();
}
return mUpdates[0]->Begin();
}
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsIOfflineCacheUpdateService
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsOfflineCacheUpdateService::GetNumUpdates(uint32_t *aNumUpdates)
{
LOG(("nsOfflineCacheUpdateService::GetNumUpdates [%p]", this));
*aNumUpdates = mUpdates.Length();
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::GetUpdate(uint32_t aIndex,
nsIOfflineCacheUpdate **aUpdate)
{
LOG(("nsOfflineCacheUpdateService::GetUpdate [%p, %d]", this, aIndex));
if (aIndex < mUpdates.Length()) {
NS_ADDREF(*aUpdate = mUpdates[aIndex]);
} else {
*aUpdate = nullptr;
}
return NS_OK;
}
nsresult
nsOfflineCacheUpdateService::FindUpdate(nsIURI *aManifestURI,
nsACString const &aOriginSuffix,
nsIFile *aCustomProfileDir,
nsOfflineCacheUpdate **aUpdate)
{
nsresult rv;
nsCOMPtr<nsIApplicationCacheService> cacheService =
do_GetService(NS_APPLICATIONCACHESERVICE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString groupID;
rv = cacheService->BuildGroupIDForSuffix(aManifestURI, aOriginSuffix, groupID);
NS_ENSURE_SUCCESS(rv, rv);
RefPtr<nsOfflineCacheUpdate> update;
for (uint32_t i = 0; i < mUpdates.Length(); i++) {
update = mUpdates[i];
bool partial;
rv = update->GetPartial(&partial);
NS_ENSURE_SUCCESS(rv, rv);
if (partial) {
// Partial updates aren't considered
continue;
}
if (update->IsForGroupID(groupID) && update->IsForProfile(aCustomProfileDir)) {
update.swap(*aUpdate);
return NS_OK;
}
}
return NS_ERROR_NOT_AVAILABLE;
}
nsresult
nsOfflineCacheUpdateService::Schedule(nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIPrincipal* aLoadingPrincipal,
nsIDOMDocument *aDocument,
nsPIDOMWindowInner* aWindow,
nsIFile* aCustomProfileDir,
nsIOfflineCacheUpdate **aUpdate)
{
nsCOMPtr<nsIOfflineCacheUpdate> update;
if (GeckoProcessType_Default != XRE_GetProcessType()) {
update = new OfflineCacheUpdateChild(aWindow);
}
else {
update = new OfflineCacheUpdateGlue();
}
nsresult rv;
if (aWindow) {
// Ensure there is window.applicationCache object that is
// responsible for association of the new applicationCache
// with the corresponding document. Just ignore the result.
nsCOMPtr<nsIDOMOfflineResourceList> appCacheWindowObject =
aWindow->GetApplicationCache();
}
rv = update->Init(aManifestURI, aDocumentURI, aLoadingPrincipal, aDocument,
aCustomProfileDir);
NS_ENSURE_SUCCESS(rv, rv);
rv = update->Schedule();
NS_ENSURE_SUCCESS(rv, rv);
NS_ADDREF(*aUpdate = update);
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::ScheduleUpdate(nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIPrincipal* aLoadingPrincipal,
mozIDOMWindow* aWindow,
nsIOfflineCacheUpdate **aUpdate)
{
return Schedule(aManifestURI, aDocumentURI, aLoadingPrincipal, nullptr,
nsPIDOMWindowInner::From(aWindow), nullptr, aUpdate);
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::ScheduleAppUpdate(nsIURI *aManifestURI,
nsIURI *aDocumentURI,
nsIPrincipal* aLoadingPrincipal,
nsIFile *aProfileDir,
nsIOfflineCacheUpdate **aUpdate)
{
return Schedule(aManifestURI, aDocumentURI, aLoadingPrincipal, nullptr, nullptr,
aProfileDir, aUpdate);
}
NS_IMETHODIMP nsOfflineCacheUpdateService::CheckForUpdate(nsIURI *aManifestURI,
nsIPrincipal* aLoadingPrincipal,
nsIObserver *aObserver)
{
if (GeckoProcessType_Default != XRE_GetProcessType()) {
// Not intended to support this on child processes
return NS_ERROR_NOT_IMPLEMENTED;
}
nsCOMPtr<nsIOfflineCacheUpdate> update = new OfflineCacheUpdateGlue();
nsresult rv;
rv = update->InitForUpdateCheck(aManifestURI, aLoadingPrincipal, aObserver);
NS_ENSURE_SUCCESS(rv, rv);
rv = update->Schedule();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsIObserver
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsOfflineCacheUpdateService::Observe(nsISupports *aSubject,
const char *aTopic,
const char16_t *aData)
{
if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
if (mUpdates.Length() > 0)
mUpdates[0]->Cancel();
mDisabled = true;
}
if (!strcmp(aTopic, "disk-space-watcher")) {
if (NS_LITERAL_STRING("full").Equals(aData)) {
mLowFreeSpace = true;
for (uint32_t i = 0; i < mUpdates.Length(); i++) {
mUpdates[i]->Cancel();
}
} else if (NS_LITERAL_STRING("free").Equals(aData)) {
mLowFreeSpace = false;
}
}
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsOfflineCacheUpdateService::nsIOfflineCacheUpdateService
//-----------------------------------------------------------------------------
static nsresult
OfflineAppPermForPrincipal(nsIPrincipal *aPrincipal,
nsIPrefBranch *aPrefBranch,
bool pinned,
bool *aAllowed)
{
*aAllowed = false;
if (!sAllowOfflineCache) {
return NS_OK;
}
if (!aPrincipal)
return NS_ERROR_INVALID_ARG;
nsCOMPtr<nsIURI> uri;
aPrincipal->GetURI(getter_AddRefs(uri));
if (!uri)
return NS_OK;
nsCOMPtr<nsIURI> innerURI = NS_GetInnermostURI(uri);
if (!innerURI)
return NS_OK;
// only http and https applications can use offline APIs.
bool match;
nsresult rv = innerURI->SchemeIs("http", &match);
NS_ENSURE_SUCCESS(rv, rv);
if (!match) {
rv = innerURI->SchemeIs("https", &match);
NS_ENSURE_SUCCESS(rv, rv);
if (!match) {
return NS_OK;
}
}
nsAutoCString domain;
rv = innerURI->GetAsciiHost(domain);
NS_ENSURE_SUCCESS(rv, rv);
if (nsOfflineCacheUpdateService::AllowedDomains()->Contains(domain)) {
*aAllowed = true;
return NS_OK;
}
nsCOMPtr<nsIPermissionManager> permissionManager =
services::GetPermissionManager();
if (!permissionManager) {
return NS_OK;
}
uint32_t perm;
const char *permName = pinned ? "pin-app" : "offline-app";
permissionManager->TestExactPermissionFromPrincipal(aPrincipal, permName, &perm);
if (perm == nsIPermissionManager::ALLOW_ACTION ||
perm == nsIOfflineCacheUpdateService::ALLOW_NO_WARN) {
*aAllowed = true;
}
// offline-apps.allow_by_default is now effective at the cache selection
// algorithm code (nsContentSink).
return NS_OK;
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::OfflineAppAllowed(nsIPrincipal *aPrincipal,
nsIPrefBranch *aPrefBranch,
bool *aAllowed)
{
return OfflineAppPermForPrincipal(aPrincipal, aPrefBranch, false, aAllowed);
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::OfflineAppAllowedForURI(nsIURI *aURI,
nsIPrefBranch *aPrefBranch,
bool *aAllowed)
{
OriginAttributes attrs;
nsCOMPtr<nsIPrincipal> principal =
BasePrincipal::CreateCodebasePrincipal(aURI, attrs);
return OfflineAppPermForPrincipal(principal, aPrefBranch, false, aAllowed);
}
nsresult
nsOfflineCacheUpdateService::OfflineAppPinnedForURI(nsIURI *aDocumentURI,
nsIPrefBranch *aPrefBranch,
bool *aPinned)
{
OriginAttributes attrs;
nsCOMPtr<nsIPrincipal> principal =
BasePrincipal::CreateCodebasePrincipal(aDocumentURI, attrs);
return OfflineAppPermForPrincipal(principal, aPrefBranch, true, aPinned);
}
NS_IMETHODIMP
nsOfflineCacheUpdateService::AllowOfflineApp(nsIPrincipal *aPrincipal)
{
nsresult rv;
if (!sAllowOfflineCache) {
return NS_ERROR_NOT_AVAILABLE;
}
if (GeckoProcessType_Default != XRE_GetProcessType()) {
ContentChild* child = ContentChild::GetSingleton();
if (!child->SendSetOfflinePermission(IPC::Principal(aPrincipal))) {
return NS_ERROR_FAILURE;
}
nsAutoCString domain;
rv = aPrincipal->GetBaseDomain(domain);
NS_ENSURE_SUCCESS(rv, rv);
nsOfflineCacheUpdateService::AllowedDomains()->PutEntry(domain);
}
else {
nsCOMPtr<nsIPermissionManager> permissionManager =
services::GetPermissionManager();
if (!permissionManager)
return NS_ERROR_NOT_AVAILABLE;
rv = permissionManager->AddFromPrincipal(
aPrincipal, "offline-app", nsIPermissionManager::ALLOW_ACTION,
nsIPermissionManager::EXPIRE_NEVER, 0);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
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