/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* vim: set sw=4 ts=8 et 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 "mozilla/DebugOnly.h" #include "base/basictypes.h" #include "ContentParent.h" #if defined(ANDROID) || defined(LINUX) # include # include #endif #ifdef MOZ_WIDGET_GONK #include #include #endif #include "chrome/common/process_watcher.h" #include #include "AppProcessChecker.h" #include "AudioChannelService.h" #include "CrashReporterParent.h" #include "IHistory.h" #include "IDBFactory.h" #include "IndexedDBParent.h" #include "IndexedDatabaseManager.h" #include "mozIApplication.h" #include "mozilla/ClearOnShutdown.h" #include "mozilla/dom/asmjscache/AsmJSCache.h" #include "mozilla/dom/Element.h" #include "mozilla/dom/DataStoreService.h" #include "mozilla/dom/ExternalHelperAppParent.h" #include "mozilla/dom/PContentBridgeParent.h" #include "mozilla/dom/PFileDescriptorSetParent.h" #include "mozilla/dom/PCycleCollectWithLogsParent.h" #include "mozilla/dom/PMemoryReportRequestParent.h" #include "mozilla/dom/power/PowerManagerService.h" #include "mozilla/dom/DOMStorageIPC.h" #include "mozilla/dom/bluetooth/PBluetoothParent.h" #include "mozilla/dom/PFMRadioParent.h" #include "mozilla/dom/devicestorage/DeviceStorageRequestParent.h" #include "mozilla/dom/FileSystemRequestParent.h" #include "mozilla/dom/GeolocationBinding.h" #include "mozilla/dom/FileDescriptorSetParent.h" #include "mozilla/dom/telephony/TelephonyParent.h" #include "mozilla/dom/time/DateCacheCleaner.h" #include "SmsParent.h" #include "mozilla/hal_sandbox/PHalParent.h" #include "mozilla/ipc/BackgroundChild.h" #include "mozilla/ipc/BackgroundParent.h" #include "mozilla/ipc/FileDescriptorUtils.h" #include "mozilla/ipc/TestShellParent.h" #include "mozilla/ipc/InputStreamUtils.h" #include "mozilla/layers/CompositorParent.h" #include "mozilla/layers/ImageBridgeParent.h" #include "mozilla/layers/SharedBufferManagerParent.h" #include "mozilla/net/NeckoParent.h" #include "mozilla/Preferences.h" #include "mozilla/Services.h" #include "mozilla/StaticPtr.h" #include "mozilla/unused.h" #include "nsAnonymousTemporaryFile.h" #include "nsAppRunner.h" #include "nsAutoPtr.h" #include "nsCDefaultURIFixup.h" #include "nsCExternalHandlerService.h" #include "nsCOMPtr.h" #include "nsChromeRegistryChrome.h" #include "nsConsoleMessage.h" #include "nsConsoleService.h" #include "nsDebugImpl.h" #include "nsDOMFile.h" #include "nsFrameMessageManager.h" #include "nsHashPropertyBag.h" #include "nsIAlertsService.h" #include "nsIAppsService.h" #include "nsIClipboard.h" #include "nsICycleCollectorListener.h" #include "nsIDOMGeoGeolocation.h" #include "mozilla/dom/WakeLock.h" #include "nsIDOMWindow.h" #include "nsIExternalProtocolService.h" #include "nsIGfxInfo.h" #include "nsIIdleService.h" #include "nsIJSRuntimeService.h" #include "nsIMemoryInfoDumper.h" #include "nsIMemoryReporter.h" #include "nsIMozBrowserFrame.h" #include "nsIMutable.h" #include "nsIObserverService.h" #include "nsIPresShell.h" #include "nsIRemoteBlob.h" #include "nsIScriptError.h" #include "nsISiteSecurityService.h" #include "nsIStyleSheet.h" #include "nsISupportsPrimitives.h" #include "nsIURIFixup.h" #include "nsIWindowWatcher.h" #include "nsIXULRuntime.h" #include "nsMemoryInfoDumper.h" #include "nsMemoryReporterManager.h" #include "nsServiceManagerUtils.h" #include "nsStyleSheetService.h" #include "nsThreadUtils.h" #include "nsToolkitCompsCID.h" #include "nsWidgetsCID.h" #include "PreallocatedProcessManager.h" #include "ProcessPriorityManager.h" #include "SandboxHal.h" #include "ScreenManagerParent.h" #include "StructuredCloneUtils.h" #include "TabParent.h" #include "URIUtils.h" #include "nsIWebBrowserChrome.h" #include "nsIDocShell.h" #include "mozilla/net/NeckoMessageUtils.h" #include "gfxPrefs.h" #include "prio.h" #include "private/pprio.h" #if defined(ANDROID) || defined(LINUX) #include "nsSystemInfo.h" #endif #if defined(XP_LINUX) #include "mozilla/Hal.h" #endif #ifdef ANDROID # include "gfxAndroidPlatform.h" #endif #ifdef MOZ_PERMISSIONS # include "nsPermissionManager.h" #endif #ifdef MOZ_WIDGET_ANDROID # include "AndroidBridge.h" #endif #ifdef MOZ_WIDGET_GONK #include "nsIVolume.h" #include "nsIVolumeService.h" #include "SpeakerManagerService.h" using namespace mozilla::system; #endif #ifdef MOZ_B2G_BT #include "BluetoothParent.h" #include "BluetoothService.h" #endif #include "JavaScriptParent.h" #include "mozilla/RemoteSpellCheckEngineParent.h" #ifdef MOZ_B2G_FM #include "mozilla/dom/FMRadioParent.h" #endif #include "Crypto.h" #ifdef MOZ_WEBSPEECH #include "mozilla/dom/SpeechSynthesisParent.h" #endif #ifdef ENABLE_TESTS #include "BackgroundChildImpl.h" #include "mozilla/ipc/PBackgroundChild.h" #include "nsIIPCBackgroundChildCreateCallback.h" #endif #ifdef MOZ_B2G_RIL #include "mozilla/dom/mobileconnection/MobileConnectionParent.h" using namespace mozilla::dom::mobileconnection; #endif #if defined(MOZ_CONTENT_SANDBOX) && defined(XP_LINUX) #include "mozilla/Sandbox.h" #endif static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID); static const char* sClipboardTextFlavors[] = { kUnicodeMime }; using base::ChildPrivileges; using base::KillProcess; using namespace mozilla::dom::bluetooth; using namespace mozilla::dom::devicestorage; using namespace mozilla::dom::indexedDB; using namespace mozilla::dom::power; using namespace mozilla::dom::mobilemessage; using namespace mozilla::dom::telephony; using namespace mozilla::hal; using namespace mozilla::ipc; using namespace mozilla::layers; using namespace mozilla::net; using namespace mozilla::jsipc; using namespace mozilla::widget; #ifdef ENABLE_TESTS class BackgroundTester MOZ_FINAL : public nsIIPCBackgroundChildCreateCallback, public nsIObserver { static uint32_t sCallbackCount; private: ~BackgroundTester() { } virtual void ActorCreated(PBackgroundChild* aActor) MOZ_OVERRIDE { MOZ_RELEASE_ASSERT(aActor, "Failed to create a PBackgroundChild actor!"); NS_NAMED_LITERAL_CSTRING(testStr, "0123456789"); PBackgroundTestChild* testActor = aActor->SendPBackgroundTestConstructor(testStr); MOZ_RELEASE_ASSERT(testActor); if (!sCallbackCount) { PBackgroundChild* existingBackgroundChild = BackgroundChild::GetForCurrentThread(); MOZ_RELEASE_ASSERT(existingBackgroundChild); MOZ_RELEASE_ASSERT(existingBackgroundChild == aActor); bool ok = existingBackgroundChild-> SendPBackgroundTestConstructor(testStr); MOZ_RELEASE_ASSERT(ok); // Callback 3. ok = BackgroundChild::GetOrCreateForCurrentThread(this); MOZ_RELEASE_ASSERT(ok); } sCallbackCount++; } virtual void ActorFailed() MOZ_OVERRIDE { MOZ_CRASH("Failed to create a PBackgroundChild actor!"); } NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData) MOZ_OVERRIDE { nsCOMPtr observerService = mozilla::services::GetObserverService(); MOZ_RELEASE_ASSERT(observerService); nsresult rv = observerService->RemoveObserver(this, aTopic); MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv)); if (!strcmp(aTopic, "profile-after-change")) { if (mozilla::Preferences::GetBool("pbackground.testing", false)) { rv = observerService->AddObserver(this, "xpcom-shutdown", false); MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv)); // Callback 1. bool ok = BackgroundChild::GetOrCreateForCurrentThread(this); MOZ_RELEASE_ASSERT(ok); BackgroundChildImpl::ThreadLocal* threadLocal = BackgroundChildImpl::GetThreadLocalForCurrentThread(); MOZ_RELEASE_ASSERT(threadLocal); // Callback 2. ok = BackgroundChild::GetOrCreateForCurrentThread(this); MOZ_RELEASE_ASSERT(ok); } return NS_OK; } if (!strcmp(aTopic, "xpcom-shutdown")) { MOZ_RELEASE_ASSERT(sCallbackCount == 3); return NS_OK; } MOZ_CRASH("Unknown observer topic!"); } public: NS_DECL_ISUPPORTS }; uint32_t BackgroundTester::sCallbackCount = 0; NS_IMPL_ISUPPORTS(BackgroundTester, nsIIPCBackgroundChildCreateCallback, nsIObserver) #endif // ENABLE_TESTS void MaybeTestPBackground() { #ifdef ENABLE_TESTS // This test relies on running the event loop and XPCShell does not always // do so. Bail out here if we detect that we're running in XPCShell. if (PR_GetEnv("XPCSHELL_TEST_PROFILE_DIR")) { return; } // This is called too early at startup to test preferences directly. We have // to install an observer to be notified when preferences are available. nsCOMPtr observerService = mozilla::services::GetObserverService(); MOZ_RELEASE_ASSERT(observerService); nsCOMPtr observer = new BackgroundTester(); nsresult rv = observerService->AddObserver(observer, "profile-after-change", false); MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv)); #endif } // XXX Workaround for bug 986973 to maintain the existing broken semantics template<> struct nsIConsoleService::COMTypeInfo { static const nsIID kIID; }; const nsIID nsIConsoleService::COMTypeInfo::kIID = NS_ICONSOLESERVICE_IID; namespace mozilla { namespace dom { #ifdef MOZ_NUWA_PROCESS bool ContentParent::sNuwaReady = false; // Contains data that is observed by Nuwa and is going to be sent to // the new process when it is forked. struct ContentParent::NuwaReinitializeData { NuwaReinitializeData() : mReceivedFilePathUpdate(false) , mReceivedFileSystemUpdate(false) { } bool mReceivedFilePathUpdate; nsString mFilePathUpdateStoageType; nsString mFilePathUpdateStorageName; nsString mFilePathUpdatePath; nsCString mFilePathUpdateReason; bool mReceivedFileSystemUpdate; nsString mFileSystemUpdateFsName; nsString mFileSystemUpdateMountPount; int32_t mFileSystemUpdateState; int32_t mFileSystemUpdateMountGeneration; bool mFileSystemUpdateIsMediaPresent; bool mFileSystemUpdateIsSharing; bool mFileSystemUpdateIsFormatting; bool mFileSystemUpdateIsFake; }; #endif #define NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC "ipc:network:set-offline" class MemoryReportRequestParent : public PMemoryReportRequestParent { public: MemoryReportRequestParent(); virtual ~MemoryReportRequestParent(); virtual void ActorDestroy(ActorDestroyReason aWhy) MOZ_OVERRIDE; virtual bool Recv__delete__(const uint32_t& generation, const InfallibleTArray& report); private: ContentParent* Owner() { return static_cast(Manager()); } }; MemoryReportRequestParent::MemoryReportRequestParent() { MOZ_COUNT_CTOR(MemoryReportRequestParent); } void MemoryReportRequestParent::ActorDestroy(ActorDestroyReason aWhy) { // Implement me! Bug 1005154 } bool MemoryReportRequestParent::Recv__delete__(const uint32_t& generation, const InfallibleTArray& childReports) { nsRefPtr mgr = nsMemoryReporterManager::GetOrCreate(); if (mgr) { mgr->HandleChildReports(generation, childReports); } return true; } MemoryReportRequestParent::~MemoryReportRequestParent() { MOZ_COUNT_DTOR(MemoryReportRequestParent); } // IPC receiver for remote GC/CC logging. class CycleCollectWithLogsParent MOZ_FINAL : public PCycleCollectWithLogsParent { public: ~CycleCollectWithLogsParent() { MOZ_COUNT_DTOR(CycleCollectWithLogsParent); } static bool AllocAndSendConstructor(ContentParent* aManager, bool aDumpAllTraces, nsICycleCollectorLogSink* aSink, nsIDumpGCAndCCLogsCallback* aCallback) { CycleCollectWithLogsParent *actor; FILE* gcLog; FILE* ccLog; nsresult rv; actor = new CycleCollectWithLogsParent(aSink, aCallback); rv = actor->mSink->Open(&gcLog, &ccLog); if (NS_WARN_IF(NS_FAILED(rv))) { delete actor; return false; } return aManager-> SendPCycleCollectWithLogsConstructor(actor, aDumpAllTraces, FILEToFileDescriptor(gcLog), FILEToFileDescriptor(ccLog)); } private: virtual bool RecvCloseGCLog() MOZ_OVERRIDE { unused << mSink->CloseGCLog(); return true; } virtual bool RecvCloseCCLog() MOZ_OVERRIDE { unused << mSink->CloseCCLog(); return true; } virtual bool Recv__delete__() MOZ_OVERRIDE { // Report completion to mCallback only on successful // completion of the protocol. nsCOMPtr gcLog, ccLog; mSink->GetGcLog(getter_AddRefs(gcLog)); mSink->GetCcLog(getter_AddRefs(ccLog)); unused << mCallback->OnDump(gcLog, ccLog, /* parent = */ false); return true; } virtual void ActorDestroy(ActorDestroyReason aReason) MOZ_OVERRIDE { // If the actor is unexpectedly destroyed, we deliberately // don't call Close[GC]CLog on the sink, because the logs may // be incomplete. See also the nsCycleCollectorLogSinkToFile // implementaiton of those methods, and its destructor. } CycleCollectWithLogsParent(nsICycleCollectorLogSink *aSink, nsIDumpGCAndCCLogsCallback *aCallback) : mSink(aSink), mCallback(aCallback) { MOZ_COUNT_CTOR(CycleCollectWithLogsParent); } nsCOMPtr mSink; nsCOMPtr mCallback; }; // A memory reporter for ContentParent objects themselves. class ContentParentsMemoryReporter MOZ_FINAL : public nsIMemoryReporter { ~ContentParentsMemoryReporter() {} public: NS_DECL_ISUPPORTS NS_DECL_NSIMEMORYREPORTER }; NS_IMPL_ISUPPORTS(ContentParentsMemoryReporter, nsIMemoryReporter) NS_IMETHODIMP ContentParentsMemoryReporter::CollectReports(nsIMemoryReporterCallback* cb, nsISupports* aClosure, bool aAnonymize) { nsAutoTArray cps; ContentParent::GetAllEvenIfDead(cps); for (uint32_t i = 0; i < cps.Length(); i++) { ContentParent* cp = cps[i]; MessageChannel* channel = cp->GetIPCChannel(); nsString friendlyName; cp->FriendlyName(friendlyName, aAnonymize); cp->AddRef(); nsrefcnt refcnt = cp->Release(); const char* channelStr = "no channel"; uint32_t numQueuedMessages = 0; if (channel) { if (channel->Unsound_IsClosed()) { channelStr = "closed channel"; } else { channelStr = "open channel"; } numQueuedMessages = channel->Unsound_NumQueuedMessages(); } nsPrintfCString path("queued-ipc-messages/content-parent" "(%s, pid=%d, %s, 0x%p, refcnt=%d)", NS_ConvertUTF16toUTF8(friendlyName).get(), cp->Pid(), channelStr, static_cast(cp), refcnt); NS_NAMED_LITERAL_CSTRING(desc, "The number of unset IPC messages held in this ContentParent's " "channel. A large value here might indicate that we're leaking " "messages. Similarly, a ContentParent object for a process that's no " "longer running could indicate that we're leaking ContentParents."); nsresult rv = cb->Callback(/* process */ EmptyCString(), path, KIND_OTHER, UNITS_COUNT, numQueuedMessages, desc, aClosure); NS_ENSURE_SUCCESS(rv, rv); } return NS_OK; } nsDataHashtable* ContentParent::sAppContentParents; nsTArray* ContentParent::sNonAppContentParents; nsTArray* ContentParent::sPrivateContent; StaticAutoPtr > ContentParent::sContentParents; #ifdef MOZ_NUWA_PROCESS // The pref updates sent to the Nuwa process. static nsTArray* sNuwaPrefUpdates; #endif // This is true when subprocess launching is enabled. This is the // case between StartUp() and ShutDown() or JoinAllSubprocesses(). static bool sCanLaunchSubprocesses; // The first content child has ID 1, so the chrome process can have ID 0. static uint64_t gContentChildID = 1; // We want the prelaunched process to know that it's for apps, but not // actually for any app in particular. Use a magic manifest URL. // Can't be a static constant. #define MAGIC_PREALLOCATED_APP_MANIFEST_URL NS_LITERAL_STRING("{{template}}") static const char* sObserverTopics[] = { "xpcom-shutdown", NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC, "child-memory-reporter-request", "memory-pressure", "child-gc-request", "child-cc-request", "child-mmu-request", "last-pb-context-exited", "file-watcher-update", #ifdef MOZ_WIDGET_GONK NS_VOLUME_STATE_CHANGED, "phone-state-changed", #endif #ifdef ACCESSIBILITY "a11y-init-or-shutdown", #endif "app-theme-changed", }; /* static */ already_AddRefed ContentParent::RunNuwaProcess() { MOZ_ASSERT(NS_IsMainThread()); nsRefPtr nuwaProcess = new ContentParent(/* aApp = */ nullptr, /* aOpener = */ nullptr, /* aIsForBrowser = */ false, /* aIsForPreallocated = */ true, PROCESS_PRIORITY_BACKGROUND, /* aIsNuwaProcess = */ true); nuwaProcess->Init(); #ifdef MOZ_NUWA_PROCESS sNuwaReady = false; #endif return nuwaProcess.forget(); } // PreallocateAppProcess is called by the PreallocatedProcessManager. // ContentParent then takes this process back within // GetNewOrPreallocatedAppProcess. /*static*/ already_AddRefed ContentParent::PreallocateAppProcess() { nsRefPtr process = new ContentParent(/* app = */ nullptr, /* aOpener = */ nullptr, /* isForBrowserElement = */ false, /* isForPreallocated = */ true, PROCESS_PRIORITY_PREALLOC); process->Init(); return process.forget(); } /*static*/ already_AddRefed ContentParent::GetNewOrPreallocatedAppProcess(mozIApplication* aApp, ProcessPriority aInitialPriority, ContentParent* aOpener, /*out*/ bool* aTookPreAllocated) { MOZ_ASSERT(aApp); nsRefPtr process = PreallocatedProcessManager::Take(); if (process) { if (!process->SetPriorityAndCheckIsAlive(aInitialPriority)) { // Kill the process just in case it's not actually dead; we don't want // to "leak" this process! process->KillHard(); } else { nsAutoString manifestURL; if (NS_FAILED(aApp->GetManifestURL(manifestURL))) { NS_ERROR("Failed to get manifest URL"); return nullptr; } process->TransformPreallocatedIntoApp(aOpener, manifestURL); if (aTookPreAllocated) { *aTookPreAllocated = true; } return process.forget(); } } // XXXkhuey Nuwa wants the frame loader to try again later, but the // frame loader is really not set up to do that ... NS_WARNING("Unable to use pre-allocated app process"); process = new ContentParent(aApp, /* aOpener = */ aOpener, /* isForBrowserElement = */ false, /* isForPreallocated = */ false, aInitialPriority); process->Init(); if (aTookPreAllocated) { *aTookPreAllocated = false; } return process.forget(); } /*static*/ void ContentParent::StartUp() { // We could launch sub processes from content process // FIXME Bug 1023701 - Stop using ContentParent static methods in // child process sCanLaunchSubprocesses = true; if (XRE_GetProcessType() != GeckoProcessType_Default) { return; } #if defined(MOZ_CONTENT_SANDBOX) && defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 19 // Require sandboxing on B2G >= KitKat. This condition must stay // in sync with ContentChild::RecvSetProcessSandbox. if (!CanSandboxContentProcess()) { // MOZ_CRASH strings are only for debug builds; make sure the // message is clear on non-debug builds as well: printf_stderr("Sandboxing support is required on this platform. " "Recompile kernel with CONFIG_SECCOMP_FILTER=y\n"); MOZ_CRASH("Sandboxing support is required on this platform."); } #endif // Note: This reporter measures all ContentParents. RegisterStrongMemoryReporter(new ContentParentsMemoryReporter()); mozilla::dom::time::InitializeDateCacheCleaner(); BackgroundChild::Startup(); // Try to preallocate a process that we can transform into an app later. PreallocatedProcessManager::AllocateAfterDelay(); // Test the PBackground infrastructure on ENABLE_TESTS builds when a special // testing preference is set. MaybeTestPBackground(); } /*static*/ void ContentParent::ShutDown() { // No-op for now. We rely on normal process shutdown and // ClearOnShutdown() to clean up our state. sCanLaunchSubprocesses = false; } /*static*/ void ContentParent::JoinProcessesIOThread(const nsTArray* aProcesses, Monitor* aMonitor, bool* aDone) { const nsTArray& processes = *aProcesses; for (uint32_t i = 0; i < processes.Length(); ++i) { if (GeckoChildProcessHost* process = processes[i]->mSubprocess) { process->Join(); } } { MonitorAutoLock lock(*aMonitor); *aDone = true; lock.Notify(); } // Don't touch any arguments to this function from now on. } /*static*/ void ContentParent::JoinAllSubprocesses() { MOZ_ASSERT(NS_IsMainThread()); nsAutoTArray processes; GetAll(processes); if (processes.IsEmpty()) { printf_stderr("There are no live subprocesses."); return; } printf_stderr("Subprocesses are still alive. Doing emergency join.\n"); bool done = false; Monitor monitor("mozilla.dom.ContentParent.JoinAllSubprocesses"); XRE_GetIOMessageLoop()->PostTask(FROM_HERE, NewRunnableFunction( &ContentParent::JoinProcessesIOThread, &processes, &monitor, &done)); { MonitorAutoLock lock(monitor); while (!done) { lock.Wait(); } } sCanLaunchSubprocesses = false; } /*static*/ already_AddRefed ContentParent::GetNewOrUsedBrowserProcess(bool aForBrowserElement, ProcessPriority aPriority, ContentParent* aOpener) { if (!sNonAppContentParents) sNonAppContentParents = new nsTArray(); int32_t maxContentProcesses = Preferences::GetInt("dom.ipc.processCount", 1); if (maxContentProcesses < 1) maxContentProcesses = 1; if (sNonAppContentParents->Length() >= uint32_t(maxContentProcesses)) { uint32_t startIdx = rand() % sNonAppContentParents->Length(); uint32_t currIdx = startIdx; do { nsRefPtr p = (*sNonAppContentParents)[currIdx]; NS_ASSERTION(p->IsAlive(), "Non-alive contentparent in sNonAppContntParents?"); if (p->mOpener == aOpener) { return p.forget(); } currIdx = (currIdx + 1) % sNonAppContentParents->Length(); } while (currIdx != startIdx); } // Try to take and transform the preallocated process into browser. nsRefPtr p = PreallocatedProcessManager::Take(); if (p) { p->TransformPreallocatedIntoBrowser(aOpener); } else { // Failed in using the preallocated process: fork from the chrome process. p = new ContentParent(/* app = */ nullptr, aOpener, aForBrowserElement, /* isForPreallocated = */ false, aPriority); p->Init(); } sNonAppContentParents->AppendElement(p); return p.forget(); } /*static*/ ProcessPriority ContentParent::GetInitialProcessPriority(Element* aFrameElement) { // Frames with mozapptype == critical which are expecting a system message // get FOREGROUND_HIGH priority. if (!aFrameElement) { return PROCESS_PRIORITY_FOREGROUND; } if (aFrameElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mozapptype, NS_LITERAL_STRING("inputmethod"), eCaseMatters)) { return PROCESS_PRIORITY_FOREGROUND_KEYBOARD; } else if (!aFrameElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mozapptype, NS_LITERAL_STRING("critical"), eCaseMatters)) { return PROCESS_PRIORITY_FOREGROUND; } nsCOMPtr browserFrame = do_QueryInterface(aFrameElement); if (!browserFrame) { return PROCESS_PRIORITY_FOREGROUND; } return browserFrame->GetIsExpectingSystemMessage() ? PROCESS_PRIORITY_FOREGROUND_HIGH : PROCESS_PRIORITY_FOREGROUND; } bool ContentParent::PreallocatedProcessReady() { #ifdef MOZ_NUWA_PROCESS return PreallocatedProcessManager::PreallocatedProcessReady(); #else return true; #endif } typedef std::map > GrandchildMap; static GrandchildMap sGrandchildProcessMap; std::map sContentParentMap; bool ContentParent::RecvCreateChildProcess(const IPCTabContext& aContext, const hal::ProcessPriority& aPriority, uint64_t* aId, bool* aIsForApp, bool* aIsForBrowser) { #if 0 if (!CanOpenBrowser(aContext)) { return false; } #endif nsRefPtr cp; MaybeInvalidTabContext tc(aContext); if (!tc.IsValid()) { NS_ERROR(nsPrintfCString("Received an invalid TabContext from " "the child process. (%s)", tc.GetInvalidReason()).get()); return false; } nsCOMPtr ownApp = tc.GetTabContext().GetOwnApp(); if (ownApp) { cp = GetNewOrPreallocatedAppProcess(ownApp, aPriority, this); } else { cp = GetNewOrUsedBrowserProcess(/* isBrowserElement = */ true, aPriority, this); } if (!cp) { *aId = 0; *aIsForApp = false; *aIsForBrowser = false; return true; } *aId = cp->ChildID(); *aIsForApp = cp->IsForApp(); *aIsForBrowser = cp->IsForBrowser(); sContentParentMap[*aId] = cp; auto iter = sGrandchildProcessMap.find(this); if (iter == sGrandchildProcessMap.end()) { std::set children; children.insert(cp); sGrandchildProcessMap[this] = children; } else { iter->second.insert(cp); } return true; } bool ContentParent::AnswerBridgeToChildProcess(const uint64_t& id) { ContentParent* cp = sContentParentMap[id]; auto iter = sGrandchildProcessMap.find(this); if (iter != sGrandchildProcessMap.end() && iter->second.find(cp) != iter->second.end()) { return PContentBridge::Bridge(this, cp); } else { // You can't bridge to a process you didn't open! KillHard(); return false; } } /*static*/ TabParent* ContentParent::CreateBrowserOrApp(const TabContext& aContext, Element* aFrameElement, ContentParent* aOpenerContentParent) { if (!sCanLaunchSubprocesses) { return nullptr; } ProcessPriority initialPriority = GetInitialProcessPriority(aFrameElement); bool isInContentProcess = (XRE_GetProcessType() != GeckoProcessType_Default); if (aContext.IsBrowserElement() || !aContext.HasOwnApp()) { nsRefPtr tp; nsRefPtr constructorSender; if (isInContentProcess) { MOZ_ASSERT(aContext.IsBrowserElement()); constructorSender = CreateContentBridgeParent(aContext, initialPriority); } else { if (aOpenerContentParent) { constructorSender = aOpenerContentParent; } else { constructorSender = GetNewOrUsedBrowserProcess(aContext.IsBrowserElement(), initialPriority); } } if (constructorSender) { uint32_t chromeFlags = 0; // Propagate the private-browsing status of the element's parent // docshell to the remote docshell, via the chrome flags. nsCOMPtr frameElement = do_QueryInterface(aFrameElement); MOZ_ASSERT(frameElement); nsPIDOMWindow* win = frameElement->OwnerDoc()->GetWindow(); if (!win) { NS_WARNING("Remote frame has no window"); return nullptr; } nsIDocShell* docShell = win->GetDocShell(); if (!docShell) { NS_WARNING("Remote frame has no docshell"); return nullptr; } nsCOMPtr loadContext = do_QueryInterface(docShell); if (loadContext && loadContext->UsePrivateBrowsing()) { chromeFlags |= nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW; } bool affectLifetime; docShell->GetAffectPrivateSessionLifetime(&affectLifetime); if (affectLifetime) { chromeFlags |= nsIWebBrowserChrome::CHROME_PRIVATE_LIFETIME; } nsRefPtr tp(new TabParent(constructorSender, aContext, chromeFlags)); tp->SetOwnerElement(aFrameElement); PBrowserParent* browser = constructorSender->SendPBrowserConstructor( // DeallocPBrowserParent() releases this ref. tp.forget().take(), aContext.AsIPCTabContext(), chromeFlags, constructorSender->ChildID(), constructorSender->IsForApp(), constructorSender->IsForBrowser()); return static_cast(browser); } return nullptr; } // If we got here, we have an app and we're not a browser element. ownApp // shouldn't be null, because we otherwise would have gone into the // !HasOwnApp() branch above. nsRefPtr parent; bool reused = false; bool tookPreallocated = false; nsAutoString manifestURL; if (isInContentProcess) { parent = CreateContentBridgeParent(aContext, initialPriority); } else { nsCOMPtr ownApp = aContext.GetOwnApp(); if (!sAppContentParents) { sAppContentParents = new nsDataHashtable(); } // Each app gets its own ContentParent instance unless it shares it with // a parent app. if (NS_FAILED(ownApp->GetManifestURL(manifestURL))) { NS_ERROR("Failed to get manifest URL"); return nullptr; } nsRefPtr p = sAppContentParents->Get(manifestURL); if (!p && Preferences::GetBool("dom.ipc.reuse_parent_app")) { nsAutoString parentAppManifestURL; aFrameElement->GetAttr(kNameSpaceID_None, nsGkAtoms::parentapp, parentAppManifestURL); nsAdoptingString systemAppManifestURL = Preferences::GetString("b2g.system_manifest_url"); nsCOMPtr appsService = do_GetService(APPS_SERVICE_CONTRACTID); if (!parentAppManifestURL.IsEmpty() && !parentAppManifestURL.Equals(systemAppManifestURL) && appsService) { nsCOMPtr parentApp; nsCOMPtr app; appsService->GetAppByManifestURL(parentAppManifestURL, getter_AddRefs(parentApp)); appsService->GetAppByManifestURL(manifestURL, getter_AddRefs(app)); // Only let certified apps re-use the same process. unsigned short parentAppStatus = 0; unsigned short appStatus = 0; if (app && NS_SUCCEEDED(app->GetAppStatus(&appStatus)) && appStatus == nsIPrincipal::APP_STATUS_CERTIFIED && parentApp && NS_SUCCEEDED(parentApp->GetAppStatus(&parentAppStatus)) && parentAppStatus == nsIPrincipal::APP_STATUS_CERTIFIED) { // Check if we can re-use the process of the parent app. p = sAppContentParents->Get(parentAppManifestURL); } } } if (p) { // Check that the process is still alive and set its priority. // Hopefully the process won't die after this point, if this call // succeeds. if (!p->SetPriorityAndCheckIsAlive(initialPriority)) { p = nullptr; } } reused = !!p; if (!p) { p = GetNewOrPreallocatedAppProcess(ownApp, initialPriority, nullptr, &tookPreallocated); MOZ_ASSERT(p); sAppContentParents->Put(manifestURL, p); } parent = static_cast(p); } if (!parent) { return nullptr; } uint32_t chromeFlags = 0; nsRefPtr tp = new TabParent(parent, aContext, chromeFlags); tp->SetOwnerElement(aFrameElement); PBrowserParent* browser = parent->SendPBrowserConstructor( // DeallocPBrowserParent() releases this ref. nsRefPtr(tp).forget().take(), aContext.AsIPCTabContext(), chromeFlags, parent->ChildID(), parent->IsForApp(), parent->IsForBrowser()); if (isInContentProcess) { // Just return directly without the following check in content process. return static_cast(browser); } if (!browser) { // We failed to actually start the PBrowser. This can happen if the // other process has already died. if (!reused) { // Don't leave a broken ContentParent in the hashtable. parent->AsContentParent()->KillHard(); sAppContentParents->Remove(manifestURL); parent = nullptr; } // If we took the preallocated process and it was already dead, try // again with a non-preallocated process. We can be sure this won't // loop forever, because the next time through there will be no // preallocated process to take. if (tookPreallocated) { return ContentParent::CreateBrowserOrApp(aContext, aFrameElement, aOpenerContentParent); } // Otherwise just give up. return nullptr; } parent->AsContentParent()->MaybeTakeCPUWakeLock(aFrameElement); return static_cast(browser); } /*static*/ ContentBridgeParent* ContentParent::CreateContentBridgeParent(const TabContext& aContext, const hal::ProcessPriority& aPriority) { ContentChild* child = ContentChild::GetSingleton(); uint64_t id; bool isForApp; bool isForBrowser; if (!child->SendCreateChildProcess(aContext.AsIPCTabContext(), aPriority, &id, &isForApp, &isForBrowser)) { return nullptr; } if (id == 0) { return nullptr; } if (!child->CallBridgeToChildProcess(id)) { return nullptr; } ContentBridgeParent* parent = child->GetLastBridge(); parent->SetChildID(id); parent->SetIsForApp(isForApp); parent->SetIsForBrowser(isForBrowser); return parent; } void ContentParent::GetAll(nsTArray& aArray) { aArray.Clear(); if (!sContentParents) { return; } for (ContentParent* cp = sContentParents->getFirst(); cp; cp = cp->LinkedListElement::getNext()) { if (cp->mIsAlive) { aArray.AppendElement(cp); } } } void ContentParent::GetAllEvenIfDead(nsTArray& aArray) { aArray.Clear(); if (!sContentParents) { return; } for (ContentParent* cp = sContentParents->getFirst(); cp; cp = cp->LinkedListElement::getNext()) { aArray.AppendElement(cp); } } void ContentParent::Init() { nsCOMPtr obs = mozilla::services::GetObserverService(); if (obs) { size_t length = ArrayLength(sObserverTopics); for (size_t i = 0; i < length; ++i) { obs->AddObserver(this, sObserverTopics[i], false); } } Preferences::AddStrongObserver(this, ""); if (obs) { obs->NotifyObservers(static_cast(this), "ipc:content-created", nullptr); } #ifdef ACCESSIBILITY // If accessibility is running in chrome process then start it in content // process. if (nsIPresShell::IsAccessibilityActive()) { unused << SendActivateA11y(); } #endif DebugOnly observer = FileUpdateDispatcher::GetSingleton(); NS_ASSERTION(observer, "FileUpdateDispatcher is null"); } namespace { class SystemMessageHandledListener MOZ_FINAL : public nsITimerCallback , public LinkedListElement { public: NS_DECL_ISUPPORTS SystemMessageHandledListener() {} static void OnSystemMessageHandled() { if (!sListeners) { return; } SystemMessageHandledListener* listener = sListeners->popFirst(); if (!listener) { return; } // Careful: ShutDown() may delete |this|. listener->ShutDown(); } void Init(WakeLock* aWakeLock) { MOZ_ASSERT(!mWakeLock); MOZ_ASSERT(!mTimer); // mTimer keeps a strong reference to |this|. When this object's // destructor runs, it will remove itself from the LinkedList. if (!sListeners) { sListeners = new LinkedList(); ClearOnShutdown(&sListeners); } sListeners->insertBack(this); mWakeLock = aWakeLock; mTimer = do_CreateInstance("@mozilla.org/timer;1"); uint32_t timeoutSec = Preferences::GetInt("dom.ipc.systemMessageCPULockTimeoutSec", 30); mTimer->InitWithCallback(this, timeoutSec * 1000, nsITimer::TYPE_ONE_SHOT); } NS_IMETHOD Notify(nsITimer* aTimer) { // Careful: ShutDown() may delete |this|. ShutDown(); return NS_OK; } private: ~SystemMessageHandledListener() {} static StaticAutoPtr > sListeners; void ShutDown() { nsRefPtr kungFuDeathGrip = this; ErrorResult rv; mWakeLock->Unlock(rv); if (mTimer) { mTimer->Cancel(); mTimer = nullptr; } } nsRefPtr mWakeLock; nsCOMPtr mTimer; }; StaticAutoPtr > SystemMessageHandledListener::sListeners; NS_IMPL_ISUPPORTS(SystemMessageHandledListener, nsITimerCallback) } // anonymous namespace void ContentParent::MaybeTakeCPUWakeLock(Element* aFrameElement) { // Take the CPU wake lock on behalf of this processs if it's expecting a // system message. We'll release the CPU lock once the message is // delivered, or after some period of time, which ever comes first. nsCOMPtr browserFrame = do_QueryInterface(aFrameElement); if (!browserFrame || !browserFrame->GetIsExpectingSystemMessage()) { return; } nsRefPtr pms = PowerManagerService::GetInstance(); nsRefPtr lock = pms->NewWakeLockOnBehalfOfProcess(NS_LITERAL_STRING("cpu"), this); // This object's Init() function keeps it alive. nsRefPtr listener = new SystemMessageHandledListener(); listener->Init(lock); } bool ContentParent::SetPriorityAndCheckIsAlive(ProcessPriority aPriority) { ProcessPriorityManager::SetProcessPriority(this, aPriority); // Now that we've set this process's priority, check whether the process is // still alive. Hopefully we've set the priority to FOREGROUND*, so the // process won't unexpectedly crash after this point! // // Bug 943174: use waitid() with WNOWAIT so that, if the process // did exit, we won't consume its zombie and confuse the // GeckoChildProcessHost dtor. Also, if the process isn't a // direct child because of Nuwa this will fail with ECHILD, and we // need to assume the child is alive in that case rather than // assuming it's dead (as is otherwise a reasonable fallback). #ifdef MOZ_WIDGET_GONK siginfo_t info; info.si_pid = 0; if (waitid(P_PID, Pid(), &info, WNOWAIT | WNOHANG | WEXITED) == 0 && info.si_pid != 0) { return false; } #endif return true; } // Helper for ContentParent::TransformPreallocatedIntoApp. static void TryGetNameFromManifestURL(const nsAString& aManifestURL, nsAString& aName) { aName.Truncate(); if (aManifestURL.IsEmpty() || aManifestURL == MAGIC_PREALLOCATED_APP_MANIFEST_URL) { return; } nsCOMPtr appsService = do_GetService(APPS_SERVICE_CONTRACTID); NS_ENSURE_TRUE_VOID(appsService); nsCOMPtr app; appsService->GetAppByManifestURL(aManifestURL, getter_AddRefs(app)); if (!app) { return; } app->GetName(aName); } void ContentParent::TransformPreallocatedIntoApp(ContentParent* aOpener, const nsAString& aAppManifestURL) { MOZ_ASSERT(IsPreallocated()); mOpener = aOpener; mAppManifestURL = aAppManifestURL; TryGetNameFromManifestURL(aAppManifestURL, mAppName); } void ContentParent::TransformPreallocatedIntoBrowser(ContentParent* aOpener) { // Reset mAppManifestURL, mIsForBrowser and mOSPrivileges for browser. mOpener = aOpener; mAppManifestURL.Truncate(); mIsForBrowser = true; } void ContentParent::ShutDownProcess(bool aCloseWithError) { const InfallibleTArray& idbParents = ManagedPIndexedDBParent(); for (uint32_t i = 0; i < idbParents.Length(); ++i) { static_cast(idbParents[i])->Disconnect(); } // If Close() fails with an error, we'll end up back in this function, but // with aCloseWithError = true. It's important that we call // CloseWithError() in this case; see bug 895204. if (!aCloseWithError && !mCalledClose) { // Close() can only be called once: It kicks off the destruction // sequence. mCalledClose = true; Close(); } if (aCloseWithError && !mCalledCloseWithError) { MessageChannel* channel = GetIPCChannel(); if (channel) { mCalledCloseWithError = true; channel->CloseWithError(); } } // NB: must MarkAsDead() here so that this isn't accidentally // returned from Get*() while in the midst of shutdown. MarkAsDead(); // A ContentParent object might not get freed until after XPCOM shutdown has // shut down the cycle collector. But by then it's too late to release any // CC'ed objects, so we need to null them out here, while we still can. See // bug 899761. ShutDownMessageManager(); } void ContentParent::ShutDownMessageManager() { if (!mMessageManager) { return; } mMessageManager->ReceiveMessage( static_cast(mMessageManager.get()), CHILD_PROCESS_SHUTDOWN_MESSAGE, false, nullptr, nullptr, nullptr, nullptr); mMessageManager->Disconnect(); mMessageManager = nullptr; } void ContentParent::MarkAsDead() { if (!mAppManifestURL.IsEmpty()) { if (sAppContentParents) { sAppContentParents->Remove(mAppManifestURL); if (!sAppContentParents->Count()) { delete sAppContentParents; sAppContentParents = nullptr; } } } else if (sNonAppContentParents) { sNonAppContentParents->RemoveElement(this); if (!sNonAppContentParents->Length()) { delete sNonAppContentParents; sNonAppContentParents = nullptr; } } if (sPrivateContent) { sPrivateContent->RemoveElement(this); if (!sPrivateContent->Length()) { delete sPrivateContent; sPrivateContent = nullptr; } } mIsAlive = false; sGrandchildProcessMap.erase(this); for (auto iter = sGrandchildProcessMap.begin(); iter != sGrandchildProcessMap.end(); iter++) { iter->second.erase(this); } } void ContentParent::OnChannelError() { nsRefPtr content(this); #ifdef MOZ_NUWA_PROCESS // Handle app or Nuwa process exit before normal channel error handling. PreallocatedProcessManager::MaybeForgetSpare(this); #endif PContentParent::OnChannelError(); } void ContentParent::OnChannelConnected(int32_t pid) { ProcessHandle handle; if (!base::OpenPrivilegedProcessHandle(pid, &handle)) { NS_WARNING("Can't open handle to child process."); } else { // we need to close the existing handle before setting a new one. base::CloseProcessHandle(OtherProcess()); SetOtherProcess(handle); #if defined(ANDROID) || defined(LINUX) // Check nice preference int32_t nice = Preferences::GetInt("dom.ipc.content.nice", 0); // Environment variable overrides preference char* relativeNicenessStr = getenv("MOZ_CHILD_PROCESS_RELATIVE_NICENESS"); if (relativeNicenessStr) { nice = atoi(relativeNicenessStr); } /* make the GUI thread have higher priority on single-cpu devices */ nsCOMPtr infoService = do_GetService(NS_SYSTEMINFO_CONTRACTID); if (infoService) { int32_t cpus; nsresult rv = infoService->GetPropertyAsInt32(NS_LITERAL_STRING("cpucount"), &cpus); if (NS_FAILED(rv)) { cpus = 1; } if (nice != 0 && cpus == 1) { setpriority(PRIO_PROCESS, pid, getpriority(PRIO_PROCESS, pid) + nice); } } #endif } } void ContentParent::ProcessingError(Result what) { if (MsgDropped == what) { // Messages sent after crashes etc. are not a big deal. return; } // Other errors are big deals. KillHard(); } typedef std::pair > IDPair; namespace { std::map >& NestedBrowserLayerIds() { MOZ_ASSERT(NS_IsMainThread()); static std::map > sNestedBrowserIds; return sNestedBrowserIds; } } // anonymous namespace bool ContentParent::RecvAllocateLayerTreeId(uint64_t* aId) { *aId = CompositorParent::AllocateLayerTreeId(); auto iter = NestedBrowserLayerIds().find(this); if (iter == NestedBrowserLayerIds().end()) { std::set ids; ids.insert(*aId); NestedBrowserLayerIds().insert(IDPair(this, ids)); } else { iter->second.insert(*aId); } return true; } bool ContentParent::RecvDeallocateLayerTreeId(const uint64_t& aId) { auto iter = NestedBrowserLayerIds().find(this); if (iter != NestedBrowserLayerIds().end() && iter->second.find(aId) != iter->second.end()) { CompositorParent::DeallocateLayerTreeId(aId); } else { // You can't deallocate layer tree ids that you didn't allocate KillHard(); } return true; } namespace { void DelayedDeleteSubprocess(GeckoChildProcessHost* aSubprocess) { XRE_GetIOMessageLoop() ->PostTask(FROM_HERE, new DeleteTask(aSubprocess)); } // This runnable only exists to delegate ownership of the // ContentParent to this runnable, until it's deleted by the event // system. struct DelayedDeleteContentParentTask : public nsRunnable { explicit DelayedDeleteContentParentTask(ContentParent* aObj) : mObj(aObj) { } // No-op NS_IMETHODIMP Run() { return NS_OK; } nsRefPtr mObj; }; } void ContentParent::ActorDestroy(ActorDestroyReason why) { if (mForceKillTask) { mForceKillTask->Cancel(); mForceKillTask = nullptr; } ShutDownMessageManager(); nsRefPtr kungFuDeathGrip(this); nsCOMPtr obs = mozilla::services::GetObserverService(); if (obs) { size_t length = ArrayLength(sObserverTopics); for (size_t i = 0; i < length; ++i) { obs->RemoveObserver(static_cast(this), sObserverTopics[i]); } } // Tell the memory reporter manager that this ContentParent is going away. nsRefPtr mgr = nsMemoryReporterManager::GetOrCreate(); #ifdef MOZ_NUWA_PROCESS bool isMemoryChild = !IsNuwaProcess(); #else bool isMemoryChild = true; #endif if (mgr && isMemoryChild) { mgr->DecrementNumChildProcesses(); } // remove the global remote preferences observers Preferences::RemoveObserver(this, ""); #ifdef MOZ_NUWA_PROCESS // Remove the pref update requests. if (IsNuwaProcess() && sNuwaPrefUpdates) { delete sNuwaPrefUpdates; sNuwaPrefUpdates = nullptr; } #endif RecvRemoveGeolocationListener(); mConsoleService = nullptr; MarkAsDead(); if (obs) { nsRefPtr props = new nsHashPropertyBag(); props->SetPropertyAsUint64(NS_LITERAL_STRING("childID"), mChildID); if (AbnormalShutdown == why) { props->SetPropertyAsBool(NS_LITERAL_STRING("abnormal"), true); #ifdef MOZ_CRASHREPORTER // There's a window in which child processes can crash // after IPC is established, but before a crash reporter // is created. if (ManagedPCrashReporterParent().Length() > 0) { CrashReporterParent* crashReporter = static_cast(ManagedPCrashReporterParent()[0]); // If we're an app process, always stomp the latest URI // loaded in the child process with our manifest URL. We // would rather associate the crashes with apps than // random child windows loaded in them. // // XXX would be nice if we could get both ... if (!mAppManifestURL.IsEmpty()) { crashReporter->AnnotateCrashReport(NS_LITERAL_CSTRING("URL"), NS_ConvertUTF16toUTF8(mAppManifestURL)); } crashReporter->GenerateCrashReport(this, nullptr); nsAutoString dumpID(crashReporter->ChildDumpID()); props->SetPropertyAsAString(NS_LITERAL_STRING("dumpID"), dumpID); } #endif } obs->NotifyObservers((nsIPropertyBag2*) props, "ipc:content-shutdown", nullptr); } mIdleListeners.Clear(); // If the child process was terminated due to a SIGKIL, ShutDownProcess // might not have been called yet. We must call it to ensure that our // channel is closed, etc. ShutDownProcess(/* closeWithError */ true); MessageLoop::current()-> PostTask(FROM_HERE, NewRunnableFunction(DelayedDeleteSubprocess, mSubprocess)); mSubprocess = nullptr; // IPDL rules require actors to live on past ActorDestroy, but it // may be that the kungFuDeathGrip above is the last reference to // |this|. If so, when we go out of scope here, we're deleted and // all hell breaks loose. // // This runnable ensures that a reference to |this| lives on at // least until after the current task finishes running. NS_DispatchToCurrentThread(new DelayedDeleteContentParentTask(this)); // Destroy any processes created by this ContentParent auto iter = sGrandchildProcessMap.find(this); if (iter != sGrandchildProcessMap.end()) { for(auto child = iter->second.begin(); child != iter->second.end(); child++) { MessageLoop::current()->PostTask( FROM_HERE, NewRunnableMethod(*child, &ContentParent::ShutDownProcess, /* closeWithError */ false)); } } } void ContentParent::NotifyTabDestroying(PBrowserParent* aTab) { // There can be more than one PBrowser for a given app process // because of popup windows. PBrowsers can also destroy // concurrently. When all the PBrowsers are destroying, kick off // another task to ensure the child process *really* shuts down, // even if the PBrowsers themselves never finish destroying. int32_t numLiveTabs = ManagedPBrowserParent().Length(); ++mNumDestroyingTabs; if (mNumDestroyingTabs != numLiveTabs) { return; } // We're dying now, so prevent this content process from being // recycled during its shutdown procedure. MarkAsDead(); MOZ_ASSERT(!mForceKillTask); int32_t timeoutSecs = Preferences::GetInt("dom.ipc.tabs.shutdownTimeoutSecs", 5); if (timeoutSecs > 0) { MessageLoop::current()->PostDelayedTask( FROM_HERE, mForceKillTask = NewRunnableMethod(this, &ContentParent::KillHard), timeoutSecs * 1000); } } void ContentParent::NotifyTabDestroyed(PBrowserParent* aTab, bool aNotifiedDestroying) { if (aNotifiedDestroying) { --mNumDestroyingTabs; } // There can be more than one PBrowser for a given app process // because of popup windows. When the last one closes, shut // us down. if (ManagedPBrowserParent().Length() == 1) { MessageLoop::current()->PostTask( FROM_HERE, NewRunnableMethod(this, &ContentParent::ShutDownProcess, /* force */ false)); } } jsipc::JavaScriptParent* ContentParent::GetCPOWManager() { if (ManagedPJavaScriptParent().Length()) { return static_cast(ManagedPJavaScriptParent()[0]); } return nullptr; } TestShellParent* ContentParent::CreateTestShell() { return static_cast(SendPTestShellConstructor()); } bool ContentParent::DestroyTestShell(TestShellParent* aTestShell) { return PTestShellParent::Send__delete__(aTestShell); } TestShellParent* ContentParent::GetTestShellSingleton() { if (!ManagedPTestShellParent().Length()) return nullptr; return static_cast(ManagedPTestShellParent()[0]); } void ContentParent::InitializeMembers() { mSubprocess = nullptr; mChildID = gContentChildID++; mGeolocationWatchID = -1; mForceKillTask = nullptr; mNumDestroyingTabs = 0; mIsAlive = true; mSendPermissionUpdates = false; mSendDataStoreInfos = false; mCalledClose = false; mCalledCloseWithError = false; mCalledKillHard = false; } ContentParent::ContentParent(mozIApplication* aApp, ContentParent* aOpener, bool aIsForBrowser, bool aIsForPreallocated, ProcessPriority aInitialPriority /* = PROCESS_PRIORITY_FOREGROUND */, bool aIsNuwaProcess /* = false */) : nsIContentParent() , mOpener(aOpener) , mIsForBrowser(aIsForBrowser) , mIsNuwaProcess(aIsNuwaProcess) { InitializeMembers(); // Perform common initialization. // No more than one of !!aApp, aIsForBrowser, aIsForPreallocated should be // true. MOZ_ASSERT(!!aApp + aIsForBrowser + aIsForPreallocated <= 1); // Only the preallocated process uses Nuwa. MOZ_ASSERT_IF(aIsNuwaProcess, aIsForPreallocated); // Insert ourselves into the global linked list of ContentParent objects. if (!sContentParents) { sContentParents = new LinkedList(); } if (!aIsNuwaProcess) { sContentParents->insertBack(this); } if (aApp) { aApp->GetManifestURL(mAppManifestURL); aApp->GetName(mAppName); } else if (aIsForPreallocated) { mAppManifestURL = MAGIC_PREALLOCATED_APP_MANIFEST_URL; } // From this point on, NS_WARNING, NS_ASSERTION, etc. should print out the // PID along with the warning. nsDebugImpl::SetMultiprocessMode("Parent"); NS_ASSERTION(NS_IsMainThread(), "Wrong thread!"); ChildPrivileges privs = aIsNuwaProcess ? base::PRIVILEGES_INHERIT : base::PRIVILEGES_DEFAULT; mSubprocess = new GeckoChildProcessHost(GeckoProcessType_Content, privs); IToplevelProtocol::SetTransport(mSubprocess->GetChannel()); if (!aIsNuwaProcess) { // Tell the memory reporter manager that this ContentParent exists. nsRefPtr mgr = nsMemoryReporterManager::GetOrCreate(); if (mgr) { mgr->IncrementNumChildProcesses(); } } std::vector extraArgs; if (aIsNuwaProcess) { extraArgs.push_back("-nuwa"); } mSubprocess->LaunchAndWaitForProcessHandle(extraArgs); Open(mSubprocess->GetChannel(), mSubprocess->GetOwnedChildProcessHandle()); InitInternal(aInitialPriority, true, /* Setup off-main thread compositing */ true /* Send registered chrome */); } #ifdef MOZ_NUWA_PROCESS static const mozilla::ipc::FileDescriptor* FindFdProtocolFdMapping(const nsTArray& aFds, ProtocolId aProtoId) { for (unsigned int i = 0; i < aFds.Length(); i++) { if (aFds[i].protocolId() == aProtoId) { return &aFds[i].fd(); } } return nullptr; } /** * This constructor is used for new content process cloned from a template. * * For Nuwa. */ ContentParent::ContentParent(ContentParent* aTemplate, const nsAString& aAppManifestURL, base::ProcessHandle aPid, const nsTArray& aFds) : mAppManifestURL(aAppManifestURL) , mIsForBrowser(false) , mIsNuwaProcess(false) { InitializeMembers(); // Perform common initialization. sContentParents->insertBack(this); // From this point on, NS_WARNING, NS_ASSERTION, etc. should print out the // PID along with the warning. nsDebugImpl::SetMultiprocessMode("Parent"); NS_ASSERTION(NS_IsMainThread(), "Wrong thread!"); const FileDescriptor* fd = FindFdProtocolFdMapping(aFds, GetProtocolId()); NS_ASSERTION(fd != nullptr, "IPC Channel for PContent is necessary!"); mSubprocess = new GeckoExistingProcessHost(GeckoProcessType_Content, aPid, *fd); // Tell the memory reporter manager that this ContentParent exists. nsRefPtr mgr = nsMemoryReporterManager::GetOrCreate(); if (mgr) { mgr->IncrementNumChildProcesses(); } mSubprocess->LaunchAndWaitForProcessHandle(); // Clone actors routed by aTemplate for this instance. IToplevelProtocol::SetTransport(mSubprocess->GetChannel()); ProtocolCloneContext cloneContext; cloneContext.SetContentParent(this); CloneManagees(aTemplate, &cloneContext); CloneOpenedToplevels(aTemplate, aFds, aPid, &cloneContext); Open(mSubprocess->GetChannel(), mSubprocess->GetChildProcessHandle()); // Set the subprocess's priority (bg if we're a preallocated process, fg // otherwise). We do this first because we're likely /lowering/ its CPU and // memory priority, which it has inherited from this process. ProcessPriority priority; if (IsPreallocated()) { priority = PROCESS_PRIORITY_PREALLOC; } else { priority = PROCESS_PRIORITY_FOREGROUND; } InitInternal(priority, false, /* Setup Off-main thread compositing */ false /* Send registered chrome */); } #endif // MOZ_NUWA_PROCESS ContentParent::~ContentParent() { if (mForceKillTask) { mForceKillTask->Cancel(); } if (OtherProcess()) base::CloseProcessHandle(OtherProcess()); NS_ASSERTION(NS_IsMainThread(), "Wrong thread!"); // We should be removed from all these lists in ActorDestroy. MOZ_ASSERT(!sPrivateContent || !sPrivateContent->Contains(this)); if (mAppManifestURL.IsEmpty()) { MOZ_ASSERT(!sNonAppContentParents || !sNonAppContentParents->Contains(this)); } else { // In general, we expect sAppContentParents->Get(mAppManifestURL) to be // nullptr. But it could be that we created another ContentParent for // this app after we did this->ActorDestroy(), so the right check is // that sAppContentParents->Get(mAppManifestURL) != this. MOZ_ASSERT(!sAppContentParents || sAppContentParents->Get(mAppManifestURL) != this); } #ifdef MOZ_NUWA_PROCESS if (IsNuwaProcess()) { sNuwaReady = false; } #endif } void ContentParent::InitInternal(ProcessPriority aInitialPriority, bool aSetupOffMainThreadCompositing, bool aSendRegisteredChrome) { // Set the subprocess's priority. We do this early on because we're likely // /lowering/ the process's CPU and memory priority, which it has inherited // from this process. // // This call can cause us to send IPC messages to the child process, so it // must come after the Open() call above. ProcessPriorityManager::SetProcessPriority(this, aInitialPriority); if (aSetupOffMainThreadCompositing) { // NB: internally, this will send an IPC message to the child // process to get it to create the CompositorChild. This // message goes through the regular IPC queue for this // channel, so delivery will happen-before any other messages // we send. The CompositorChild must be created before any // PBrowsers are created, because they rely on the Compositor // already being around. (Creation is async, so can't happen // on demand.) bool useOffMainThreadCompositing = !!CompositorParent::CompositorLoop(); if (useOffMainThreadCompositing) { DebugOnly opened = PCompositor::Open(this); MOZ_ASSERT(opened); #ifndef MOZ_WIDGET_GONK if (gfxPrefs::AsyncVideoOOPEnabled()) { opened = PImageBridge::Open(this); MOZ_ASSERT(opened); } #else opened = PImageBridge::Open(this); MOZ_ASSERT(opened); #endif } #ifdef MOZ_WIDGET_GONK DebugOnly opened = PSharedBufferManager::Open(this); MOZ_ASSERT(opened); #endif } if (aSendRegisteredChrome) { nsCOMPtr registrySvc = nsChromeRegistry::GetService(); nsChromeRegistryChrome* chromeRegistry = static_cast(registrySvc.get()); chromeRegistry->SendRegisteredChrome(this); } if (gAppData) { nsCString version(gAppData->version); nsCString buildID(gAppData->buildID); nsCString name(gAppData->name); nsCString UAName(gAppData->UAName); // Sending all information to content process. unused << SendAppInfo(version, buildID, name, UAName); } nsStyleSheetService *sheetService = nsStyleSheetService::GetInstance(); if (sheetService) { // This looks like a lot of work, but in a normal browser session we just // send two loads. nsCOMArray& agentSheets = *sheetService->AgentStyleSheets(); for (uint32_t i = 0; i < agentSheets.Length(); i++) { URIParams uri; SerializeURI(agentSheets[i]->GetSheetURI(), uri); unused << SendLoadAndRegisterSheet(uri, nsIStyleSheetService::AGENT_SHEET); } nsCOMArray& userSheets = *sheetService->UserStyleSheets(); for (uint32_t i = 0; i < userSheets.Length(); i++) { URIParams uri; SerializeURI(userSheets[i]->GetSheetURI(), uri); unused << SendLoadAndRegisterSheet(uri, nsIStyleSheetService::USER_SHEET); } nsCOMArray& authorSheets = *sheetService->AuthorStyleSheets(); for (uint32_t i = 0; i < authorSheets.Length(); i++) { URIParams uri; SerializeURI(authorSheets[i]->GetSheetURI(), uri); unused << SendLoadAndRegisterSheet(uri, nsIStyleSheetService::AUTHOR_SHEET); } } #ifdef MOZ_CONTENT_SANDBOX bool shouldSandbox = true; #ifdef MOZ_NUWA_PROCESS if (IsNuwaProcess()) { shouldSandbox = false; } #endif if (shouldSandbox && !SendSetProcessSandbox()) { KillHard(); } #endif } bool ContentParent::IsAlive() { return mIsAlive; } bool ContentParent::IsForApp() { return !mAppManifestURL.IsEmpty(); } #ifdef MOZ_NUWA_PROCESS bool ContentParent::IsNuwaProcess() { return mIsNuwaProcess; } #endif int32_t ContentParent::Pid() { if (!mSubprocess || !mSubprocess->GetChildProcessHandle()) { return -1; } return base::GetProcId(mSubprocess->GetChildProcessHandle()); } bool ContentParent::RecvReadPrefsArray(InfallibleTArray* aPrefs) { Preferences::GetPreferences(aPrefs); return true; } bool ContentParent::RecvReadFontList(InfallibleTArray* retValue) { #ifdef ANDROID gfxAndroidPlatform::GetPlatform()->GetFontList(retValue); #endif return true; } bool ContentParent::RecvReadPermissions(InfallibleTArray* aPermissions) { #ifdef MOZ_PERMISSIONS nsCOMPtr permissionManagerIface = services::GetPermissionManager(); nsPermissionManager* permissionManager = static_cast(permissionManagerIface.get()); NS_ABORT_IF_FALSE(permissionManager, "We have no permissionManager in the Chrome process !"); nsCOMPtr enumerator; DebugOnly rv = permissionManager->GetEnumerator(getter_AddRefs(enumerator)); NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv), "Could not get enumerator!"); while(1) { bool hasMore; enumerator->HasMoreElements(&hasMore); if (!hasMore) break; nsCOMPtr supp; enumerator->GetNext(getter_AddRefs(supp)); nsCOMPtr perm = do_QueryInterface(supp); nsCString host; perm->GetHost(host); uint32_t appId; perm->GetAppId(&appId); bool isInBrowserElement; perm->GetIsInBrowserElement(&isInBrowserElement); nsCString type; perm->GetType(type); uint32_t capability; perm->GetCapability(&capability); uint32_t expireType; perm->GetExpireType(&expireType); int64_t expireTime; perm->GetExpireTime(&expireTime); aPermissions->AppendElement(IPC::Permission(host, appId, isInBrowserElement, type, capability, expireType, expireTime)); } // Ask for future changes mSendPermissionUpdates = true; #endif return true; } bool ContentParent::RecvSetClipboardText(const nsString& text, const bool& isPrivateData, const int32_t& whichClipboard) { nsresult rv; nsCOMPtr clipboard(do_GetService(kCClipboardCID, &rv)); NS_ENSURE_SUCCESS(rv, true); nsCOMPtr dataWrapper = do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv); NS_ENSURE_SUCCESS(rv, true); rv = dataWrapper->SetData(text); NS_ENSURE_SUCCESS(rv, true); nsCOMPtr trans = do_CreateInstance("@mozilla.org/widget/transferable;1", &rv); NS_ENSURE_SUCCESS(rv, true); trans->Init(nullptr); // If our data flavor has already been added, this will fail. But we don't care trans->AddDataFlavor(kUnicodeMime); trans->SetIsPrivateData(isPrivateData); nsCOMPtr nsisupportsDataWrapper = do_QueryInterface(dataWrapper); rv = trans->SetTransferData(kUnicodeMime, nsisupportsDataWrapper, text.Length() * sizeof(char16_t)); NS_ENSURE_SUCCESS(rv, true); clipboard->SetData(trans, nullptr, whichClipboard); return true; } bool ContentParent::RecvGetClipboardText(const int32_t& whichClipboard, nsString* text) { nsresult rv; nsCOMPtr clipboard(do_GetService(kCClipboardCID, &rv)); NS_ENSURE_SUCCESS(rv, true); nsCOMPtr trans = do_CreateInstance("@mozilla.org/widget/transferable;1", &rv); NS_ENSURE_SUCCESS(rv, true); trans->Init(nullptr); trans->AddDataFlavor(kUnicodeMime); clipboard->GetData(trans, whichClipboard); nsCOMPtr tmp; uint32_t len; rv = trans->GetTransferData(kUnicodeMime, getter_AddRefs(tmp), &len); if (NS_FAILED(rv)) return true; nsCOMPtr supportsString = do_QueryInterface(tmp); // No support for non-text data if (!supportsString) return true; supportsString->GetData(*text); return true; } bool ContentParent::RecvEmptyClipboard(const int32_t& whichClipboard) { nsresult rv; nsCOMPtr clipboard(do_GetService(kCClipboardCID, &rv)); NS_ENSURE_SUCCESS(rv, true); clipboard->EmptyClipboard(whichClipboard); return true; } bool ContentParent::RecvClipboardHasText(const int32_t& whichClipboard, bool* hasText) { nsresult rv; nsCOMPtr clipboard(do_GetService(kCClipboardCID, &rv)); NS_ENSURE_SUCCESS(rv, true); clipboard->HasDataMatchingFlavors(sClipboardTextFlavors, 1, whichClipboard, hasText); return true; } bool ContentParent::RecvGetSystemColors(const uint32_t& colorsCount, InfallibleTArray* colors) { #ifdef MOZ_WIDGET_ANDROID NS_ASSERTION(AndroidBridge::Bridge() != nullptr, "AndroidBridge is not available"); if (AndroidBridge::Bridge() == nullptr) { // Do not fail - the colors won't be right, but it's not critical return true; } colors->AppendElements(colorsCount); // The array elements correspond to the members of AndroidSystemColors structure, // so just pass the pointer to the elements buffer AndroidBridge::Bridge()->GetSystemColors((AndroidSystemColors*)colors->Elements()); #endif return true; } bool ContentParent::RecvGetIconForExtension(const nsCString& aFileExt, const uint32_t& aIconSize, InfallibleTArray* bits) { #ifdef MOZ_WIDGET_ANDROID NS_ASSERTION(AndroidBridge::Bridge() != nullptr, "AndroidBridge is not available"); if (AndroidBridge::Bridge() == nullptr) { // Do not fail - just no icon will be shown return true; } bits->AppendElements(aIconSize * aIconSize * 4); AndroidBridge::Bridge()->GetIconForExtension(aFileExt, aIconSize, bits->Elements()); #endif return true; } bool ContentParent::RecvGetShowPasswordSetting(bool* showPassword) { // default behavior is to show the last password character *showPassword = true; #ifdef MOZ_WIDGET_ANDROID NS_ASSERTION(AndroidBridge::Bridge() != nullptr, "AndroidBridge is not available"); *showPassword = mozilla::widget::android::GeckoAppShell::GetShowPasswordSetting(); #endif return true; } bool ContentParent::RecvFirstIdle() { // When the ContentChild goes idle, it sends us a FirstIdle message // which we use as a good time to prelaunch another process. If we // prelaunch any sooner than this, then we'll be competing with the // child process and slowing it down. PreallocatedProcessManager::AllocateAfterDelay(); return true; } bool ContentParent::RecvAudioChannelGetState(const AudioChannel& aChannel, const bool& aElementHidden, const bool& aElementWasHidden, AudioChannelState* aState) { nsRefPtr service = AudioChannelService::GetOrCreateAudioChannelService(); *aState = AUDIO_CHANNEL_STATE_NORMAL; MOZ_ASSERT(service); *aState = service->GetStateInternal(aChannel, mChildID, aElementHidden, aElementWasHidden); return true; } bool ContentParent::RecvAudioChannelRegisterType(const AudioChannel& aChannel, const bool& aWithVideo) { nsRefPtr service = AudioChannelService::GetOrCreateAudioChannelService(); MOZ_ASSERT(service); service->RegisterType(aChannel, mChildID, aWithVideo); return true; } bool ContentParent::RecvAudioChannelUnregisterType(const AudioChannel& aChannel, const bool& aElementHidden, const bool& aWithVideo) { nsRefPtr service = AudioChannelService::GetOrCreateAudioChannelService(); MOZ_ASSERT(service); service->UnregisterType(aChannel, aElementHidden, mChildID, aWithVideo); return true; } bool ContentParent::RecvAudioChannelChangedNotification() { nsRefPtr service = AudioChannelService::GetOrCreateAudioChannelService(); MOZ_ASSERT(service); service->SendAudioChannelChangedNotification(ChildID()); return true; } bool ContentParent::RecvAudioChannelChangeDefVolChannel(const int32_t& aChannel, const bool& aHidden) { nsRefPtr service = AudioChannelService::GetOrCreateAudioChannelService(); MOZ_ASSERT(service); service->SetDefaultVolumeControlChannelInternal(aChannel, aHidden, mChildID); return true; } bool ContentParent::RecvDataStoreGetStores( const nsString& aName, const nsString& aOwner, const IPC::Principal& aPrincipal, InfallibleTArray* aValue) { nsRefPtr service = DataStoreService::GetOrCreate(); if (NS_WARN_IF(!service)) { return false; } nsresult rv = service->GetDataStoresFromIPC(aName, aOwner, aPrincipal, aValue); if (NS_WARN_IF(NS_FAILED(rv))) { return false; } mSendDataStoreInfos = true; return true; } bool ContentParent::RecvBroadcastVolume(const nsString& aVolumeName) { #ifdef MOZ_WIDGET_GONK nsresult rv; nsCOMPtr vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv); if (vs) { vs->BroadcastVolume(aVolumeName); } return true; #else NS_WARNING("ContentParent::RecvBroadcastVolume shouldn't be called when MOZ_WIDGET_GONK is not defined"); return false; #endif } bool ContentParent::RecvNuwaReady() { #ifdef MOZ_NUWA_PROCESS if (!IsNuwaProcess()) { NS_ERROR( nsPrintfCString( "Terminating child process %d for unauthorized IPC message: NuwaReady", Pid()).get()); KillHard(); return false; } sNuwaReady = true; PreallocatedProcessManager::OnNuwaReady(); return true; #else NS_ERROR("ContentParent::RecvNuwaReady() not implemented!"); return false; #endif } bool ContentParent::RecvAddNewProcess(const uint32_t& aPid, const InfallibleTArray& aFds) { #ifdef MOZ_NUWA_PROCESS if (!IsNuwaProcess()) { NS_ERROR( nsPrintfCString( "Terminating child process %d for unauthorized IPC message: " "AddNewProcess(%d)", Pid(), aPid).get()); KillHard(); return false; } nsRefPtr content; content = new ContentParent(this, MAGIC_PREALLOCATED_APP_MANIFEST_URL, aPid, aFds); content->Init(); size_t numNuwaPrefUpdates = sNuwaPrefUpdates ? sNuwaPrefUpdates->Length() : 0; // Resend pref updates to the forked child. for (int i = 0; i < numNuwaPrefUpdates; i++) { content->SendPreferenceUpdate(sNuwaPrefUpdates->ElementAt(i)); } // Update offline settings. bool isOffline; RecvGetXPCOMProcessAttributes(&isOffline); content->SendSetOffline(isOffline); // Send observed updates to new content. if (mReinitializeData) { if (mReinitializeData->mReceivedFilePathUpdate) { unused << content->SendFilePathUpdate(mReinitializeData->mFilePathUpdateStoageType, mReinitializeData->mFilePathUpdateStorageName, mReinitializeData->mFilePathUpdatePath, mReinitializeData->mFilePathUpdateReason); } if (mReinitializeData->mReceivedFilePathUpdate) { unused << content->SendFileSystemUpdate(mReinitializeData->mFileSystemUpdateFsName, mReinitializeData->mFileSystemUpdateMountPount, mReinitializeData->mFileSystemUpdateState, mReinitializeData->mFileSystemUpdateMountGeneration, mReinitializeData->mFileSystemUpdateIsMediaPresent, mReinitializeData->mFileSystemUpdateIsSharing, mReinitializeData->mFileSystemUpdateIsFormatting, mReinitializeData->mFileSystemUpdateIsFake); } } PreallocatedProcessManager::PublishSpareProcess(content); return true; #else NS_ERROR("ContentParent::RecvAddNewProcess() not implemented!"); return false; #endif } // We want ContentParent to show up in CC logs for debugging purposes, but we // don't actually cycle collect it. NS_IMPL_CYCLE_COLLECTION_0(ContentParent) NS_IMPL_CYCLE_COLLECTING_ADDREF(ContentParent) NS_IMPL_CYCLE_COLLECTING_RELEASE(ContentParent) NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ContentParent) NS_INTERFACE_MAP_ENTRY(nsIContentParent) NS_INTERFACE_MAP_ENTRY(nsIObserver) NS_INTERFACE_MAP_ENTRY(nsIDOMGeoPositionCallback) NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIObserver) NS_INTERFACE_MAP_END NS_IMETHODIMP ContentParent::Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData) { if (!strcmp(aTopic, "xpcom-shutdown") && mSubprocess) { ShutDownProcess(/* closeWithError */ false); NS_ASSERTION(!mSubprocess, "Close should have nulled mSubprocess"); } if (!mIsAlive || !mSubprocess) return NS_OK; // listening for memory pressure event if (!strcmp(aTopic, "memory-pressure") && !StringEndsWith(nsDependentString(aData), NS_LITERAL_STRING("-no-forward"))) { unused << SendFlushMemory(nsDependentString(aData)); } // listening for remotePrefs... else if (!strcmp(aTopic, "nsPref:changed")) { // We know prefs are ASCII here. NS_LossyConvertUTF16toASCII strData(aData); PrefSetting pref(strData, null_t(), null_t()); Preferences::GetPreference(&pref); #ifdef MOZ_NUWA_PROCESS if (IsNuwaProcess() && PreallocatedProcessManager::IsNuwaReady()) { // Don't send the pref update to the Nuwa process. Save the update // to send to the forked child. if (!sNuwaPrefUpdates) { sNuwaPrefUpdates = new nsTArray(); } sNuwaPrefUpdates->AppendElement(pref); } else if (!SendPreferenceUpdate(pref)) { return NS_ERROR_NOT_AVAILABLE; } #else if (!SendPreferenceUpdate(pref)) { return NS_ERROR_NOT_AVAILABLE; } #endif } else if (!strcmp(aTopic, NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC)) { NS_ConvertUTF16toUTF8 dataStr(aData); const char *offline = dataStr.get(); #ifdef MOZ_NUWA_PROCESS if (!(IsNuwaReady() && IsNuwaProcess())) { #endif if (!SendSetOffline(!strcmp(offline, "true") ? true : false)) { return NS_ERROR_NOT_AVAILABLE; } #ifdef MOZ_NUWA_PROCESS } #endif } // listening for alert notifications else if (!strcmp(aTopic, "alertfinished") || !strcmp(aTopic, "alertclickcallback") || !strcmp(aTopic, "alertshow") ) { if (!SendNotifyAlertsObserver(nsDependentCString(aTopic), nsDependentString(aData))) return NS_ERROR_NOT_AVAILABLE; } else if (!strcmp(aTopic, "child-memory-reporter-request")) { bool isNuwa = false; #ifdef MOZ_NUWA_PROCESS isNuwa = IsNuwaProcess(); #endif if (!isNuwa) { unsigned generation; int anonymize, minimize, identOffset = -1; nsDependentString msg(aData); NS_ConvertUTF16toUTF8 cmsg(msg); if (sscanf(cmsg.get(), "generation=%x anonymize=%d minimize=%d DMDident=%n", &generation, &anonymize, &minimize, &identOffset) < 3 || identOffset < 0) { return NS_ERROR_INVALID_ARG; } // The pre-%n part of the string should be all ASCII, so the byte // offset in identOffset should be correct as a char offset. MOZ_ASSERT(cmsg[identOffset - 1] == '='); FileDescriptor dmdFileDesc; #ifdef MOZ_DMD FILE *dmdFile; nsAutoString dmdIdent(Substring(msg, identOffset)); nsresult rv = nsMemoryInfoDumper::OpenDMDFile(dmdIdent, Pid(), &dmdFile); if (NS_WARN_IF(NS_FAILED(rv))) { // Proceed with the memory report as if DMD were disabled. dmdFile = nullptr; } if (dmdFile) { dmdFileDesc = FILEToFileDescriptor(dmdFile); fclose(dmdFile); } #endif unused << SendPMemoryReportRequestConstructor( generation, anonymize, minimize, dmdFileDesc); } } else if (!strcmp(aTopic, "child-gc-request")){ unused << SendGarbageCollect(); } else if (!strcmp(aTopic, "child-cc-request")){ unused << SendCycleCollect(); } else if (!strcmp(aTopic, "child-mmu-request")){ unused << SendMinimizeMemoryUsage(); } else if (!strcmp(aTopic, "last-pb-context-exited")) { unused << SendLastPrivateDocShellDestroyed(); } else if (!strcmp(aTopic, "file-watcher-update")) { nsCString creason; CopyUTF16toUTF8(aData, creason); DeviceStorageFile* file = static_cast(aSubject); #ifdef MOZ_NUWA_PROCESS if (!(IsNuwaReady() && IsNuwaProcess())) { #endif unused << SendFilePathUpdate(file->mStorageType, file->mStorageName, file->mPath, creason); #ifdef MOZ_NUWA_PROCESS } else { if (!mReinitializeData) { mReinitializeData = new NuwaReinitializeData(); } mReinitializeData->mReceivedFilePathUpdate = true; mReinitializeData->mFilePathUpdateStoageType = file->mStorageType; mReinitializeData->mFilePathUpdateStorageName = file->mStorageName; mReinitializeData->mFilePathUpdatePath = file->mPath; mReinitializeData->mFilePathUpdateReason = creason; } #endif } #ifdef MOZ_WIDGET_GONK else if(!strcmp(aTopic, NS_VOLUME_STATE_CHANGED)) { nsCOMPtr vol = do_QueryInterface(aSubject); if (!vol) { return NS_ERROR_NOT_AVAILABLE; } nsString volName; nsString mountPoint; int32_t state; int32_t mountGeneration; bool isMediaPresent; bool isSharing; bool isFormatting; bool isFake; vol->GetName(volName); vol->GetMountPoint(mountPoint); vol->GetState(&state); vol->GetMountGeneration(&mountGeneration); vol->GetIsMediaPresent(&isMediaPresent); vol->GetIsSharing(&isSharing); vol->GetIsFormatting(&isFormatting); vol->GetIsFake(&isFake); #ifdef MOZ_NUWA_PROCESS if (!(IsNuwaReady() && IsNuwaProcess())) { #endif unused << SendFileSystemUpdate(volName, mountPoint, state, mountGeneration, isMediaPresent, isSharing, isFormatting, isFake); #ifdef MOZ_NUWA_PROCESS } else { if (!mReinitializeData) { mReinitializeData = new NuwaReinitializeData(); } mReinitializeData->mReceivedFileSystemUpdate = true; mReinitializeData->mFileSystemUpdateFsName = volName; mReinitializeData->mFileSystemUpdateMountPount = mountPoint; mReinitializeData->mFileSystemUpdateState = state; mReinitializeData->mFileSystemUpdateMountPount = mountGeneration; mReinitializeData->mFileSystemUpdateIsMediaPresent = isMediaPresent; mReinitializeData->mFileSystemUpdateIsSharing = isSharing; mReinitializeData->mFileSystemUpdateIsFormatting = isFormatting; mReinitializeData->mFileSystemUpdateIsFake = isFake; } #endif } else if (!strcmp(aTopic, "phone-state-changed")) { nsString state(aData); unused << SendNotifyPhoneStateChange(state); } #endif #ifdef ACCESSIBILITY // Make sure accessibility is running in content process when accessibility // gets initiated in chrome process. else if (aData && (*aData == '1') && !strcmp(aTopic, "a11y-init-or-shutdown")) { unused << SendActivateA11y(); } #endif else if (!strcmp(aTopic, "app-theme-changed")) { unused << SendOnAppThemeChanged(); } return NS_OK; } PCompositorParent* ContentParent::AllocPCompositorParent(mozilla::ipc::Transport* aTransport, base::ProcessId aOtherProcess) { return CompositorParent::Create(aTransport, aOtherProcess); } PImageBridgeParent* ContentParent::AllocPImageBridgeParent(mozilla::ipc::Transport* aTransport, base::ProcessId aOtherProcess) { return ImageBridgeParent::Create(aTransport, aOtherProcess); } PBackgroundParent* ContentParent::AllocPBackgroundParent(Transport* aTransport, ProcessId aOtherProcess) { return BackgroundParent::Alloc(this, aTransport, aOtherProcess); } PSharedBufferManagerParent* ContentParent::AllocPSharedBufferManagerParent(mozilla::ipc::Transport* aTransport, base::ProcessId aOtherProcess) { return SharedBufferManagerParent::Create(aTransport, aOtherProcess); } bool ContentParent::RecvGetProcessAttributes(uint64_t* aId, bool* aIsForApp, bool* aIsForBrowser) { *aId = mChildID; *aIsForApp = IsForApp(); *aIsForBrowser = mIsForBrowser; return true; } bool ContentParent::RecvGetXPCOMProcessAttributes(bool* aIsOffline) { nsCOMPtr io(do_GetIOService()); NS_ASSERTION(io, "No IO service?"); DebugOnly rv = io->GetOffline(aIsOffline); NS_ASSERTION(NS_SUCCEEDED(rv), "Failed getting offline?"); return true; } mozilla::jsipc::PJavaScriptParent * ContentParent::AllocPJavaScriptParent() { MOZ_ASSERT(!ManagedPJavaScriptParent().Length()); return nsIContentParent::AllocPJavaScriptParent(); } bool ContentParent::DeallocPJavaScriptParent(PJavaScriptParent *parent) { return nsIContentParent::DeallocPJavaScriptParent(parent); } PBrowserParent* ContentParent::AllocPBrowserParent(const IPCTabContext& aContext, const uint32_t& aChromeFlags, const uint64_t& aId, const bool& aIsForApp, const bool& aIsForBrowser) { return nsIContentParent::AllocPBrowserParent(aContext, aChromeFlags, aId, aIsForApp, aIsForBrowser); } bool ContentParent::DeallocPBrowserParent(PBrowserParent* frame) { return nsIContentParent::DeallocPBrowserParent(frame); } PDeviceStorageRequestParent* ContentParent::AllocPDeviceStorageRequestParent(const DeviceStorageParams& aParams) { nsRefPtr result = new DeviceStorageRequestParent(aParams); if (!result->EnsureRequiredPermissions(this)) { return nullptr; } result->Dispatch(); return result.forget().take(); } bool ContentParent::DeallocPDeviceStorageRequestParent(PDeviceStorageRequestParent* doomed) { DeviceStorageRequestParent *parent = static_cast(doomed); NS_RELEASE(parent); return true; } PFileSystemRequestParent* ContentParent::AllocPFileSystemRequestParent(const FileSystemParams& aParams) { nsRefPtr result = new FileSystemRequestParent(); if (!result->Dispatch(this, aParams)) { return nullptr; } return result.forget().take(); } bool ContentParent::DeallocPFileSystemRequestParent(PFileSystemRequestParent* doomed) { FileSystemRequestParent* parent = static_cast(doomed); NS_RELEASE(parent); return true; } PBlobParent* ContentParent::AllocPBlobParent(const BlobConstructorParams& aParams) { return nsIContentParent::AllocPBlobParent(aParams); } bool ContentParent::DeallocPBlobParent(PBlobParent* aActor) { delete aActor; return true; } mozilla::PRemoteSpellcheckEngineParent * ContentParent::AllocPRemoteSpellcheckEngineParent() { mozilla::RemoteSpellcheckEngineParent *parent = new mozilla::RemoteSpellcheckEngineParent(); return parent; } bool ContentParent::DeallocPRemoteSpellcheckEngineParent(PRemoteSpellcheckEngineParent *parent) { delete parent; return true; } void ContentParent::KillHard() { // On Windows, calling KillHard multiple times causes problems - the // process handle becomes invalid on the first call, causing a second call // to crash our process - more details in bug 890840. if (mCalledKillHard) { return; } mCalledKillHard = true; mForceKillTask = nullptr; // This ensures the process is eventually killed, but doesn't // immediately KILLITWITHFIRE because we want to get a minidump if // possible. After a timeout though, the process is forceably // killed. if (!KillProcess(OtherProcess(), 1, false)) { NS_WARNING("failed to kill subprocess!"); } mSubprocess->SetAlreadyDead(); XRE_GetIOMessageLoop()->PostTask( FROM_HERE, NewRunnableFunction(&ProcessWatcher::EnsureProcessTerminated, OtherProcess(), /*force=*/true)); //We do clean-up here MessageLoop::current()->PostDelayedTask( FROM_HERE, NewRunnableMethod(this, &ContentParent::ShutDownProcess, /* closeWithError */ true), 3000); // We've now closed the OtherProcess() handle, so must set it to null to // prevent our dtor closing it twice. SetOtherProcess(0); } bool ContentParent::IsPreallocated() { return mAppManifestURL == MAGIC_PREALLOCATED_APP_MANIFEST_URL; } void ContentParent::FriendlyName(nsAString& aName, bool aAnonymize) { aName.Truncate(); #ifdef MOZ_NUWA_PROCESS if (IsNuwaProcess()) { aName.AssignLiteral("(Nuwa)"); } else #endif if (IsPreallocated()) { aName.AssignLiteral("(Preallocated)"); } else if (mIsForBrowser) { aName.AssignLiteral("Browser"); } else if (aAnonymize) { aName.AssignLiteral(""); } else if (!mAppName.IsEmpty()) { aName = mAppName; } else if (!mAppManifestURL.IsEmpty()) { aName.AssignLiteral("Unknown app: "); aName.Append(mAppManifestURL); } else { aName.AssignLiteral("???"); } } PCrashReporterParent* ContentParent::AllocPCrashReporterParent(const NativeThreadId& tid, const uint32_t& processType) { #ifdef MOZ_CRASHREPORTER return new CrashReporterParent(); #else return nullptr; #endif } bool ContentParent::RecvPCrashReporterConstructor(PCrashReporterParent* actor, const NativeThreadId& tid, const uint32_t& processType) { static_cast(actor)->SetChildData(tid, processType); return true; } bool ContentParent::DeallocPCrashReporterParent(PCrashReporterParent* crashreporter) { delete crashreporter; return true; } hal_sandbox::PHalParent* ContentParent::AllocPHalParent() { return hal_sandbox::CreateHalParent(); } bool ContentParent::DeallocPHalParent(hal_sandbox::PHalParent* aHal) { delete aHal; return true; } PIndexedDBParent* ContentParent::AllocPIndexedDBParent() { return new IndexedDBParent(this); } bool ContentParent::DeallocPIndexedDBParent(PIndexedDBParent* aActor) { delete aActor; return true; } bool ContentParent::RecvPIndexedDBConstructor(PIndexedDBParent* aActor) { nsRefPtr mgr = IndexedDatabaseManager::GetOrCreate(); NS_ENSURE_TRUE(mgr, false); if (!IndexedDatabaseManager::IsMainProcess()) { NS_RUNTIMEABORT("Not supported yet!"); } nsRefPtr factory; nsresult rv = IDBFactory::Create(this, getter_AddRefs(factory)); NS_ENSURE_SUCCESS(rv, false); NS_ASSERTION(factory, "This should never be null!"); IndexedDBParent* actor = static_cast(aActor); actor->mFactory = factory; actor->mASCIIOrigin = factory->GetASCIIOrigin(); return true; } PMemoryReportRequestParent* ContentParent::AllocPMemoryReportRequestParent(const uint32_t& aGeneration, const bool &aAnonymize, const bool &aMinimizeMemoryUsage, const FileDescriptor &aDMDFile) { MemoryReportRequestParent* parent = new MemoryReportRequestParent(); return parent; } bool ContentParent::DeallocPMemoryReportRequestParent(PMemoryReportRequestParent* actor) { delete actor; return true; } PCycleCollectWithLogsParent* ContentParent::AllocPCycleCollectWithLogsParent(const bool& aDumpAllTraces, const FileDescriptor& aGCLog, const FileDescriptor& aCCLog) { MOZ_CRASH("Don't call this; use ContentParent::CycleCollectWithLogs"); } bool ContentParent::DeallocPCycleCollectWithLogsParent(PCycleCollectWithLogsParent* aActor) { delete aActor; return true; } bool ContentParent::CycleCollectWithLogs(bool aDumpAllTraces, nsICycleCollectorLogSink* aSink, nsIDumpGCAndCCLogsCallback* aCallback) { return CycleCollectWithLogsParent::AllocAndSendConstructor(this, aDumpAllTraces, aSink, aCallback); } PTestShellParent* ContentParent::AllocPTestShellParent() { return new TestShellParent(); } bool ContentParent::DeallocPTestShellParent(PTestShellParent* shell) { delete shell; return true; } PMobileConnectionParent* ContentParent::AllocPMobileConnectionParent(const uint32_t& aClientId) { #ifdef MOZ_B2G_RIL nsRefPtr parent = new MobileConnectionParent(aClientId); // We release this ref in DeallocPMobileConnectionParent(). parent->AddRef(); return parent; #else MOZ_CRASH("No support for mobileconnection on this platform!"); #endif } bool ContentParent::DeallocPMobileConnectionParent(PMobileConnectionParent* aActor) { #ifdef MOZ_B2G_RIL // MobileConnectionParent is refcounted, must not be freed manually. static_cast(aActor)->Release(); return true; #else MOZ_CRASH("No support for mobileconnection on this platform!"); #endif } PNeckoParent* ContentParent::AllocPNeckoParent() { return new NeckoParent(); } bool ContentParent::DeallocPNeckoParent(PNeckoParent* necko) { delete necko; return true; } PScreenManagerParent* ContentParent::AllocPScreenManagerParent(uint32_t* aNumberOfScreens, float* aSystemDefaultScale, bool* aSuccess) { return new ScreenManagerParent(aNumberOfScreens, aSystemDefaultScale, aSuccess); } bool ContentParent::DeallocPScreenManagerParent(PScreenManagerParent* aActor) { delete aActor; return true; } PExternalHelperAppParent* ContentParent::AllocPExternalHelperAppParent(const OptionalURIParams& uri, const nsCString& aMimeContentType, const nsCString& aContentDisposition, const uint32_t& aContentDispositionHint, const nsString& aContentDispositionFilename, const bool& aForceSave, const int64_t& aContentLength, const OptionalURIParams& aReferrer, PBrowserParent* aBrowser) { ExternalHelperAppParent *parent = new ExternalHelperAppParent(uri, aContentLength); parent->AddRef(); parent->Init(this, aMimeContentType, aContentDisposition, aContentDispositionHint, aContentDispositionFilename, aForceSave, aReferrer, aBrowser); return parent; } bool ContentParent::DeallocPExternalHelperAppParent(PExternalHelperAppParent* aService) { ExternalHelperAppParent *parent = static_cast(aService); parent->Release(); return true; } PSmsParent* ContentParent::AllocPSmsParent() { if (!AssertAppProcessPermission(this, "sms")) { return nullptr; } SmsParent* parent = new SmsParent(); parent->AddRef(); return parent; } bool ContentParent::DeallocPSmsParent(PSmsParent* aSms) { static_cast(aSms)->Release(); return true; } PTelephonyParent* ContentParent::AllocPTelephonyParent() { if (!AssertAppProcessPermission(this, "telephony")) { return nullptr; } TelephonyParent* actor = new TelephonyParent(); NS_ADDREF(actor); return actor; } bool ContentParent::DeallocPTelephonyParent(PTelephonyParent* aActor) { static_cast(aActor)->Release(); return true; } PStorageParent* ContentParent::AllocPStorageParent() { return new DOMStorageDBParent(); } bool ContentParent::DeallocPStorageParent(PStorageParent* aActor) { DOMStorageDBParent* child = static_cast(aActor); child->ReleaseIPDLReference(); return true; } PBluetoothParent* ContentParent::AllocPBluetoothParent() { #ifdef MOZ_B2G_BT if (!AssertAppProcessPermission(this, "bluetooth")) { return nullptr; } return new mozilla::dom::bluetooth::BluetoothParent(); #else MOZ_CRASH("No support for bluetooth on this platform!"); #endif } bool ContentParent::DeallocPBluetoothParent(PBluetoothParent* aActor) { #ifdef MOZ_B2G_BT delete aActor; return true; #else MOZ_CRASH("No support for bluetooth on this platform!"); #endif } bool ContentParent::RecvPBluetoothConstructor(PBluetoothParent* aActor) { #ifdef MOZ_B2G_BT nsRefPtr btService = BluetoothService::Get(); NS_ENSURE_TRUE(btService, false); return static_cast(aActor)->InitWithService(btService); #else MOZ_CRASH("No support for bluetooth on this platform!"); #endif } PFMRadioParent* ContentParent::AllocPFMRadioParent() { #ifdef MOZ_B2G_FM if (!AssertAppProcessPermission(this, "fmradio")) { return nullptr; } return new FMRadioParent(); #else NS_WARNING("No support for FMRadio on this platform!"); return nullptr; #endif } bool ContentParent::DeallocPFMRadioParent(PFMRadioParent* aActor) { #ifdef MOZ_B2G_FM delete aActor; return true; #else NS_WARNING("No support for FMRadio on this platform!"); return false; #endif } asmjscache::PAsmJSCacheEntryParent* ContentParent::AllocPAsmJSCacheEntryParent( const asmjscache::OpenMode& aOpenMode, const asmjscache::WriteParams& aWriteParams, const IPC::Principal& aPrincipal) { return asmjscache::AllocEntryParent(aOpenMode, aWriteParams, aPrincipal); } bool ContentParent::DeallocPAsmJSCacheEntryParent(PAsmJSCacheEntryParent* aActor) { asmjscache::DeallocEntryParent(aActor); return true; } PSpeechSynthesisParent* ContentParent::AllocPSpeechSynthesisParent() { #ifdef MOZ_WEBSPEECH return new mozilla::dom::SpeechSynthesisParent(); #else return nullptr; #endif } bool ContentParent::DeallocPSpeechSynthesisParent(PSpeechSynthesisParent* aActor) { #ifdef MOZ_WEBSPEECH delete aActor; return true; #else return false; #endif } bool ContentParent::RecvPSpeechSynthesisConstructor(PSpeechSynthesisParent* aActor) { #ifdef MOZ_WEBSPEECH return true; #else return false; #endif } bool ContentParent::RecvSpeakerManagerGetSpeakerStatus(bool* aValue) { #ifdef MOZ_WIDGET_GONK *aValue = false; nsRefPtr service = SpeakerManagerService::GetOrCreateSpeakerManagerService(); MOZ_ASSERT(service); *aValue = service->GetSpeakerStatus(); return true; #endif return false; } bool ContentParent::RecvSpeakerManagerForceSpeaker(const bool& aEnable) { #ifdef MOZ_WIDGET_GONK nsRefPtr service = SpeakerManagerService::GetOrCreateSpeakerManagerService(); MOZ_ASSERT(service); service->ForceSpeaker(aEnable, mChildID); return true; #endif return false; } bool ContentParent::RecvStartVisitedQuery(const URIParams& aURI) { nsCOMPtr newURI = DeserializeURI(aURI); if (!newURI) { return false; } nsCOMPtr history = services::GetHistoryService(); if (history) { history->RegisterVisitedCallback(newURI, nullptr); } return true; } bool ContentParent::RecvVisitURI(const URIParams& uri, const OptionalURIParams& referrer, const uint32_t& flags) { nsCOMPtr ourURI = DeserializeURI(uri); if (!ourURI) { return false; } nsCOMPtr ourReferrer = DeserializeURI(referrer); nsCOMPtr history = services::GetHistoryService(); if (history) { history->VisitURI(ourURI, ourReferrer, flags); } return true; } bool ContentParent::RecvSetURITitle(const URIParams& uri, const nsString& title) { nsCOMPtr ourURI = DeserializeURI(uri); if (!ourURI) { return false; } nsCOMPtr history = services::GetHistoryService(); if (history) { history->SetURITitle(ourURI, title); } return true; } bool ContentParent::RecvGetRandomValues(const uint32_t& length, InfallibleTArray* randomValues) { uint8_t* buf = Crypto::GetRandomValues(length); if (!buf) { return true; } randomValues->SetCapacity(length); randomValues->SetLength(length); memcpy(randomValues->Elements(), buf, length); NS_Free(buf); return true; } bool ContentParent::RecvGetSystemMemory(const uint64_t& aGetterId) { uint32_t memoryTotal = 0; #if defined(XP_LINUX) memoryTotal = mozilla::hal::GetTotalSystemMemoryLevel(); #endif unused << SendSystemMemoryAvailable(aGetterId, memoryTotal); return true; } bool ContentParent::RecvIsSecureURI(const uint32_t& type, const URIParams& uri, const uint32_t& flags, bool* isSecureURI) { nsCOMPtr sss(do_GetService(NS_SSSERVICE_CONTRACTID)); if (!sss) { return false; } nsCOMPtr ourURI = DeserializeURI(uri); if (!ourURI) { return false; } nsresult rv = sss->IsSecureURI(type, ourURI, flags, isSecureURI); return NS_SUCCEEDED(rv); } bool ContentParent::RecvLoadURIExternal(const URIParams& uri) { nsCOMPtr extProtService(do_GetService(NS_EXTERNALPROTOCOLSERVICE_CONTRACTID)); if (!extProtService) { return true; } nsCOMPtr ourURI = DeserializeURI(uri); if (!ourURI) { return false; } extProtService->LoadURI(ourURI, nullptr); return true; } bool ContentParent::RecvShowAlertNotification(const nsString& aImageUrl, const nsString& aTitle, const nsString& aText, const bool& aTextClickable, const nsString& aCookie, const nsString& aName, const nsString& aBidi, const nsString& aLang, const nsString& aData, const IPC::Principal& aPrincipal) { #ifdef MOZ_CHILD_PERMISSIONS uint32_t permission = mozilla::CheckPermission(this, aPrincipal, "desktop-notification"); if (permission != nsIPermissionManager::ALLOW_ACTION) { return true; } #endif /* MOZ_CHILD_PERMISSIONS */ nsCOMPtr sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID)); if (sysAlerts) { sysAlerts->ShowAlertNotification(aImageUrl, aTitle, aText, aTextClickable, aCookie, this, aName, aBidi, aLang, aData, aPrincipal); } return true; } bool ContentParent::RecvCloseAlert(const nsString& aName, const IPC::Principal& aPrincipal) { #ifdef MOZ_CHILD_PERMISSIONS uint32_t permission = mozilla::CheckPermission(this, aPrincipal, "desktop-notification"); if (permission != nsIPermissionManager::ALLOW_ACTION) { return true; } #endif nsCOMPtr sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID)); if (sysAlerts) { sysAlerts->CloseAlert(aName, aPrincipal); } return true; } bool ContentParent::RecvSyncMessage(const nsString& aMsg, const ClonedMessageData& aData, const InfallibleTArray& aCpows, const IPC::Principal& aPrincipal, InfallibleTArray* aRetvals) { return nsIContentParent::RecvSyncMessage(aMsg, aData, aCpows, aPrincipal, aRetvals); } bool ContentParent::AnswerRpcMessage(const nsString& aMsg, const ClonedMessageData& aData, const InfallibleTArray& aCpows, const IPC::Principal& aPrincipal, InfallibleTArray* aRetvals) { return nsIContentParent::AnswerRpcMessage(aMsg, aData, aCpows, aPrincipal, aRetvals); } bool ContentParent::RecvAsyncMessage(const nsString& aMsg, const ClonedMessageData& aData, const InfallibleTArray& aCpows, const IPC::Principal& aPrincipal) { return nsIContentParent::RecvAsyncMessage(aMsg, aData, aCpows, aPrincipal); } bool ContentParent::RecvFilePathUpdateNotify(const nsString& aType, const nsString& aStorageName, const nsString& aFilePath, const nsCString& aReason) { nsRefPtr dsf = new DeviceStorageFile(aType, aStorageName, aFilePath); nsCOMPtr obs = mozilla::services::GetObserverService(); if (!obs) { return false; } obs->NotifyObservers(dsf, "file-watcher-update", NS_ConvertASCIItoUTF16(aReason).get()); return true; } static int32_t AddGeolocationListener(nsIDOMGeoPositionCallback* watcher, bool highAccuracy) { nsCOMPtr geo = do_GetService("@mozilla.org/geolocation;1"); if (!geo) { return -1; } PositionOptions* options = new PositionOptions(); options->mTimeout = 0; options->mMaximumAge = 0; options->mEnableHighAccuracy = highAccuracy; int32_t retval = 1; geo->WatchPosition(watcher, nullptr, options, &retval); return retval; } bool ContentParent::RecvAddGeolocationListener(const IPC::Principal& aPrincipal, const bool& aHighAccuracy) { #ifdef MOZ_CHILD_PERMISSIONS if (!ContentParent::IgnoreIPCPrincipal()) { uint32_t permission = mozilla::CheckPermission(this, aPrincipal, "geolocation"); if (permission != nsIPermissionManager::ALLOW_ACTION) { return true; } } #endif /* MOZ_CHILD_PERMISSIONS */ // To ensure no geolocation updates are skipped, we always force the // creation of a new listener. RecvRemoveGeolocationListener(); mGeolocationWatchID = AddGeolocationListener(this, aHighAccuracy); return true; } bool ContentParent::RecvRemoveGeolocationListener() { if (mGeolocationWatchID != -1) { nsCOMPtr geo = do_GetService("@mozilla.org/geolocation;1"); if (!geo) { return true; } geo->ClearWatch(mGeolocationWatchID); mGeolocationWatchID = -1; } return true; } bool ContentParent::RecvSetGeolocationHigherAccuracy(const bool& aEnable) { // This should never be called without a listener already present, // so this check allows us to forgo securing privileges. if (mGeolocationWatchID != -1) { RecvRemoveGeolocationListener(); mGeolocationWatchID = AddGeolocationListener(this, aEnable); } return true; } NS_IMETHODIMP ContentParent::HandleEvent(nsIDOMGeoPosition* postion) { unused << SendGeolocationUpdate(GeoPosition(postion)); return NS_OK; } nsConsoleService * ContentParent::GetConsoleService() { if (mConsoleService) { return mConsoleService.get(); } // Get the ConsoleService by CID rather than ContractID, so that we // can cast the returned pointer to an nsConsoleService (rather than // just an nsIConsoleService). This allows us to call the non-idl function // nsConsoleService::LogMessageWithMode. NS_DEFINE_CID(consoleServiceCID, NS_CONSOLESERVICE_CID); nsCOMPtr consoleService(do_GetService(consoleServiceCID)); mConsoleService = consoleService; return mConsoleService.get(); } bool ContentParent::RecvConsoleMessage(const nsString& aMessage) { nsRefPtr consoleService = GetConsoleService(); if (!consoleService) { return true; } nsRefPtr msg(new nsConsoleMessage(aMessage.get())); consoleService->LogMessageWithMode(msg, nsConsoleService::SuppressLog); return true; } bool ContentParent::RecvScriptError(const nsString& aMessage, const nsString& aSourceName, const nsString& aSourceLine, const uint32_t& aLineNumber, const uint32_t& aColNumber, const uint32_t& aFlags, const nsCString& aCategory) { nsRefPtr consoleService = GetConsoleService(); if (!consoleService) { return true; } nsCOMPtr msg(do_CreateInstance(NS_SCRIPTERROR_CONTRACTID)); nsresult rv = msg->Init(aMessage, aSourceName, aSourceLine, aLineNumber, aColNumber, aFlags, aCategory.get()); if (NS_FAILED(rv)) return true; consoleService->LogMessageWithMode(msg, nsConsoleService::SuppressLog); return true; } bool ContentParent::RecvPrivateDocShellsExist(const bool& aExist) { if (!sPrivateContent) sPrivateContent = new nsTArray(); if (aExist) { sPrivateContent->AppendElement(this); } else { sPrivateContent->RemoveElement(this); if (!sPrivateContent->Length()) { nsCOMPtr obs = mozilla::services::GetObserverService(); obs->NotifyObservers(nullptr, "last-pb-context-exited", nullptr); delete sPrivateContent; sPrivateContent = nullptr; } } return true; } bool ContentParent::DoSendAsyncMessage(JSContext* aCx, const nsAString& aMessage, const mozilla::dom::StructuredCloneData& aData, JS::Handle aCpows, nsIPrincipal* aPrincipal) { ClonedMessageData data; if (!BuildClonedMessageDataForParent(this, aData, data)) { return false; } InfallibleTArray cpows; if (aCpows && !GetCPOWManager()->Wrap(aCx, aCpows, &cpows)) { return false; } return SendAsyncMessage(nsString(aMessage), data, cpows, Principal(aPrincipal)); } bool ContentParent::CheckPermission(const nsAString& aPermission) { return AssertAppProcessPermission(this, NS_ConvertUTF16toUTF8(aPermission).get()); } bool ContentParent::CheckManifestURL(const nsAString& aManifestURL) { return AssertAppProcessManifestURL(this, NS_ConvertUTF16toUTF8(aManifestURL).get()); } bool ContentParent::CheckAppHasPermission(const nsAString& aPermission) { return AssertAppHasPermission(this, NS_ConvertUTF16toUTF8(aPermission).get()); } bool ContentParent::CheckAppHasStatus(unsigned short aStatus) { return AssertAppHasStatus(this, aStatus); } bool ContentParent::KillChild() { KillHard(); return true; } PBlobParent* ContentParent::SendPBlobConstructor(PBlobParent* aActor, const BlobConstructorParams& aParams) { return PContentParent::SendPBlobConstructor(aActor, aParams); } bool ContentParent::RecvSystemMessageHandled() { SystemMessageHandledListener::OnSystemMessageHandled(); return true; } PBrowserParent* ContentParent::SendPBrowserConstructor(PBrowserParent* aActor, const IPCTabContext& aContext, const uint32_t& aChromeFlags, const uint64_t& aId, const bool& aIsForApp, const bool& aIsForBrowser) { return PContentParent::SendPBrowserConstructor(aActor, aContext, aChromeFlags, aId, aIsForApp, aIsForBrowser); } bool ContentParent::RecvCreateFakeVolume(const nsString& fsName, const nsString& mountPoint) { #ifdef MOZ_WIDGET_GONK nsresult rv; nsCOMPtr vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv); if (vs) { vs->CreateFakeVolume(fsName, mountPoint); } return true; #else NS_WARNING("ContentParent::RecvCreateFakeVolume shouldn't be called when MOZ_WIDGET_GONK is not defined"); return false; #endif } bool ContentParent::RecvSetFakeVolumeState(const nsString& fsName, const int32_t& fsState) { #ifdef MOZ_WIDGET_GONK nsresult rv; nsCOMPtr vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv); if (vs) { vs->SetFakeVolumeState(fsName, fsState); } return true; #else NS_WARNING("ContentParent::RecvSetFakeVolumeState shouldn't be called when MOZ_WIDGET_GONK is not defined"); return false; #endif } bool ContentParent::RecvKeywordToURI(const nsCString& aKeyword, OptionalInputStreamParams* aPostData, OptionalURIParams* aURI) { nsCOMPtr fixup = do_GetService(NS_URIFIXUP_CONTRACTID); if (!fixup) { return true; } nsCOMPtr postData; nsCOMPtr uri; if (NS_FAILED(fixup->KeywordToURI(aKeyword, getter_AddRefs(postData), getter_AddRefs(uri)))) { return true; } nsTArray fds; SerializeInputStream(postData, *aPostData, fds); MOZ_ASSERT(fds.IsEmpty()); SerializeURI(uri, *aURI); return true; } bool ContentParent::ShouldContinueFromReplyTimeout() { // The only time ContentParent sends blocking messages is for CPOWs, so // timeouts should only ever occur in electrolysis-enabled sessions. MOZ_ASSERT(BrowserTabsRemote()); return false; } bool ContentParent::RecvRecordingDeviceEvents(const nsString& aRecordingStatus, const nsString& aPageURL, const bool& aIsAudio, const bool& aIsVideo) { nsCOMPtr obs = mozilla::services::GetObserverService(); if (obs) { // recording-device-ipc-events needs to gather more information from content process nsRefPtr props = new nsHashPropertyBag(); props->SetPropertyAsUint64(NS_LITERAL_STRING("childID"), ChildID()); props->SetPropertyAsBool(NS_LITERAL_STRING("isApp"), IsForApp()); props->SetPropertyAsBool(NS_LITERAL_STRING("isAudio"), aIsAudio); props->SetPropertyAsBool(NS_LITERAL_STRING("isVideo"), aIsVideo); nsString requestURL = IsForApp() ? AppManifestURL() : aPageURL; props->SetPropertyAsAString(NS_LITERAL_STRING("requestURL"), requestURL); obs->NotifyObservers((nsIPropertyBag2*) props, "recording-device-ipc-events", aRecordingStatus.get()); } else { NS_WARNING("Could not get the Observer service for ContentParent::RecvRecordingDeviceEvents."); } return true; } bool ContentParent::RecvGetGraphicsFeatureStatus(const int32_t& aFeature, int32_t* aStatus, bool* aSuccess) { nsCOMPtr gfxInfo = do_GetService("@mozilla.org/gfx/info;1"); if (!gfxInfo) { *aSuccess = false; return true; } *aSuccess = NS_SUCCEEDED(gfxInfo->GetFeatureStatus(aFeature, aStatus)); return true; } bool ContentParent::RecvAddIdleObserver(const uint64_t& aObserver, const uint32_t& aIdleTimeInS) { nsresult rv; nsCOMPtr idleService = do_GetService("@mozilla.org/widget/idleservice;1", &rv); NS_ENSURE_SUCCESS(rv, false); nsRefPtr listener = new ParentIdleListener(this, aObserver); mIdleListeners.Put(aObserver, listener); idleService->AddIdleObserver(listener, aIdleTimeInS); return true; } bool ContentParent::RecvRemoveIdleObserver(const uint64_t& aObserver, const uint32_t& aIdleTimeInS) { nsresult rv; nsCOMPtr idleService = do_GetService("@mozilla.org/widget/idleservice;1", &rv); NS_ENSURE_SUCCESS(rv, false); nsRefPtr listener; bool found = mIdleListeners.Get(aObserver, &listener); if (found) { mIdleListeners.Remove(aObserver); idleService->RemoveIdleObserver(listener, aIdleTimeInS); } return true; } bool ContentParent::RecvBackUpXResources(const FileDescriptor& aXSocketFd) { #ifndef MOZ_X11 NS_RUNTIMEABORT("This message only makes sense on X11 platforms"); #else NS_ABORT_IF_FALSE(0 > mChildXSocketFdDup.get(), "Already backed up X resources??"); mChildXSocketFdDup.forget(); if (aXSocketFd.IsValid()) { mChildXSocketFdDup.reset(aXSocketFd.PlatformHandle()); } #endif return true; } bool ContentParent::RecvOpenAnonymousTemporaryFile(FileDescriptor *aFD) { PRFileDesc *prfd; nsresult rv = NS_OpenAnonymousTemporaryFile(&prfd); if (NS_WARN_IF(NS_FAILED(rv))) { return false; } *aFD = FileDescriptor(FileDescriptor::PlatformHandleType(PR_FileDesc2NativeHandle(prfd))); // The FileDescriptor object owns a duplicate of the file handle; we // must close the original (and clean up the NSPR descriptor). PR_Close(prfd); return true; } PFileDescriptorSetParent* ContentParent::AllocPFileDescriptorSetParent(const FileDescriptor& aFD) { return new FileDescriptorSetParent(aFD); } bool ContentParent::DeallocPFileDescriptorSetParent(PFileDescriptorSetParent* aActor) { delete static_cast(aActor); return true; } bool ContentParent::IgnoreIPCPrincipal() { static bool sDidAddVarCache = false; static bool sIgnoreIPCPrincipal = false; if (!sDidAddVarCache) { sDidAddVarCache = true; Preferences::AddBoolVarCache(&sIgnoreIPCPrincipal, "dom.testing.ignore_ipc_principal", false); } return sIgnoreIPCPrincipal; } } // namespace dom } // namespace mozilla NS_IMPL_ISUPPORTS(ParentIdleListener, nsIObserver) NS_IMETHODIMP ParentIdleListener::Observe(nsISupports*, const char* aTopic, const char16_t* aData) { mozilla::unused << mParent->SendNotifyIdleObserver(mObserver, nsDependentCString(aTopic), nsDependentString(aData)); return NS_OK; }