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gecko-dev/dom/ipc/ContentParent.cpp

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/* -*- 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"
#include "TabParent.h"
#if defined(ANDROID) || defined(LINUX)
# include <sys/time.h>
# include <sys/resource.h>
#endif
#ifdef MOZ_WIDGET_GONK
#include <sys/types.h>
#include <sys/wait.h>
#endif
#include "chrome/common/process_watcher.h"
#include <set>
#include "mozilla/a11y/PDocAccessible.h"
#include "AppProcessChecker.h"
#include "AudioChannelService.h"
#include "BlobParent.h"
#include "CrashReporterParent.h"
#include "GMPServiceParent.h"
#include "HandlerServiceParent.h"
#include "IHistory.h"
#include "imgIContainer.h"
#include "mozIApplication.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/CSSStyleSheet.h"
#include "mozilla/DataStorage.h"
#include "mozilla/devtools/HeapSnapshotTempFileHelperParent.h"
#include "mozilla/docshell/OfflineCacheUpdateParent.h"
#include "mozilla/dom/DataStoreService.h"
#include "mozilla/dom/DataTransfer.h"
#include "mozilla/dom/DOMStorageIPC.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/ExternalHelperAppParent.h"
#include "mozilla/dom/FileSystemRequestParent.h"
#include "mozilla/dom/GeolocationBinding.h"
#ifdef MOZ_EME
#include "mozilla/dom/MediaKeySystemAccess.h"
#endif
#include "mozilla/dom/Notification.h"
#include "mozilla/dom/NuwaParent.h"
#include "mozilla/dom/PContentBridgeParent.h"
#include "mozilla/dom/PContentPermissionRequestParent.h"
#include "mozilla/dom/PCycleCollectWithLogsParent.h"
#include "mozilla/dom/PFMRadioParent.h"
#include "mozilla/dom/PMemoryReportRequestParent.h"
#include "mozilla/dom/ServiceWorkerRegistrar.h"
#include "mozilla/dom/bluetooth/PBluetoothParent.h"
#include "mozilla/dom/cellbroadcast/CellBroadcastParent.h"
#include "mozilla/dom/devicestorage/DeviceStorageRequestParent.h"
#include "mozilla/dom/icc/IccParent.h"
#include "mozilla/dom/indexedDB/IndexedDatabaseManager.h"
#include "mozilla/dom/mobileconnection/MobileConnectionParent.h"
#include "mozilla/dom/mobilemessage/SmsParent.h"
#include "mozilla/dom/power/PowerManagerService.h"
#include "mozilla/dom/PresentationParent.h"
#include "mozilla/dom/PPresentationParent.h"
#include "mozilla/dom/quota/QuotaManagerService.h"
#include "mozilla/dom/telephony/TelephonyParent.h"
#include "mozilla/dom/time/DateCacheCleaner.h"
#include "mozilla/dom/voicemail/VoicemailParent.h"
#include "mozilla/embedding/printingui/PrintingParent.h"
#include "mozilla/hal_sandbox/PHalParent.h"
#include "mozilla/ipc/BackgroundChild.h"
#include "mozilla/ipc/BackgroundParent.h"
#include "mozilla/ipc/FileDescriptorSetParent.h"
#include "mozilla/ipc/FileDescriptorUtils.h"
#include "mozilla/ipc/PFileDescriptorSetParent.h"
#include "mozilla/ipc/TestShellParent.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "mozilla/jsipc/CrossProcessObjectWrappers.h"
#include "mozilla/layers/CompositorParent.h"
#include "mozilla/layers/ImageBridgeParent.h"
#include "mozilla/layers/SharedBufferManagerParent.h"
#include "mozilla/LookAndFeel.h"
#include "mozilla/media/MediaParent.h"
#include "mozilla/Move.h"
#include "mozilla/net/NeckoParent.h"
#include "mozilla/plugins/PluginBridge.h"
#include "mozilla/Preferences.h"
#include "mozilla/ProcessHangMonitor.h"
#include "mozilla/ProcessHangMonitorIPC.h"
#ifdef MOZ_ENABLE_PROFILER_SPS
#include "mozilla/ProfileGatherer.h"
#endif
#include "mozilla/Services.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/Telemetry.h"
#include "mozilla/WebBrowserPersistDocumentParent.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 "nsContentUtils.h"
#include "nsDebugImpl.h"
#include "nsFrameMessageManager.h"
#include "nsGeolocationSettings.h"
#include "nsHashPropertyBag.h"
#include "nsIAlertsService.h"
#include "nsIAppsService.h"
#include "nsIClipboard.h"
#include "nsContentPermissionHelper.h"
#include "nsICycleCollectorListener.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIDocument.h"
#include "nsIDOMGeoGeolocation.h"
#include "nsIDOMGeoPositionError.h"
#include "nsIDragService.h"
#include "mozilla/dom/WakeLock.h"
#include "nsIDOMWindow.h"
#include "nsIExternalProtocolService.h"
#include "nsIFormProcessor.h"
#include "nsIGfxInfo.h"
#include "nsIIdleService.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIMemoryInfoDumper.h"
#include "nsIMemoryReporter.h"
#include "nsIMozBrowserFrame.h"
#include "nsIMutable.h"
#include "nsIObserverService.h"
#include "nsIPresShell.h"
#include "nsIRemoteWindowContext.h"
#include "nsIScriptError.h"
#include "nsIScriptSecurityManager.h"
#include "nsISiteSecurityService.h"
#include "nsISpellChecker.h"
#include "nsISupportsPrimitives.h"
#include "nsISystemMessagesInternal.h"
#include "nsITimer.h"
#include "nsIURIFixup.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIXULWindow.h"
#include "nsIDOMChromeWindow.h"
#include "nsIWindowWatcher.h"
#include "nsPIWindowWatcher.h"
#include "nsWindowWatcher.h"
#include "nsIXULRuntime.h"
#include "gfxDrawable.h"
#include "ImageOps.h"
#include "mozilla/dom/nsMixedContentBlocker.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 "SourceSurfaceRawData.h"
#include "TabParent.h"
#include "URIUtils.h"
#include "nsIWebBrowserChrome.h"
#include "nsIDocShell.h"
#include "nsDocShell.h"
#include "nsOpenURIInFrameParams.h"
#include "mozilla/net/NeckoMessageUtils.h"
#include "gfxPrefs.h"
#include "prio.h"
#include "private/pprio.h"
#include "ContentProcessManager.h"
#include "mozilla/dom/ipc/StructuredCloneData.h"
#include "mozilla/psm/PSMContentListener.h"
#include "nsPluginHost.h"
#include "nsPluginTags.h"
#include "nsIBlocklistService.h"
#include "nsIBidiKeyboard.h"
#ifdef MOZ_WEBRTC
#include "signaling/src/peerconnection/WebrtcGlobalParent.h"
#endif
#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 "nsVolumeService.h"
#include "nsIVolumeService.h"
#include "SpeakerManagerService.h"
using namespace mozilla::system;
#endif
#ifdef MOZ_WIDGET_GTK
#include <gdk/gdk.h>
#endif
#ifdef MOZ_B2G_BT
#include "BluetoothParent.h"
#include "BluetoothService.h"
#endif
#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
#if defined(MOZ_CONTENT_SANDBOX) && defined(XP_LINUX)
#include "mozilla/SandboxInfo.h"
#include "mozilla/SandboxBroker.h"
#include "mozilla/SandboxBrokerPolicyFactory.h"
#endif
#ifdef MOZ_TOOLKIT_SEARCH
#include "nsIBrowserSearchService.h"
#endif
#ifdef MOZ_ENABLE_PROFILER_SPS
#include "nsIProfiler.h"
#include "nsIProfileSaveEvent.h"
#endif
#ifdef MOZ_GAMEPAD
#include "mozilla/dom/GamepadMonitoring.h"
#endif
static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID);
#if defined(XP_WIN)
// e10s forced enable pref, defined in nsAppRunner.cpp
extern const char* kForceEnableE10sPref;
#endif
using base::ChildPrivileges;
using base::KillProcess;
#ifdef MOZ_ENABLE_PROFILER_SPS
using mozilla::ProfileGatherer;
#endif
#ifdef MOZ_CRASHREPORTER
using namespace CrashReporter;
#endif
using namespace mozilla::dom::bluetooth;
using namespace mozilla::dom::cellbroadcast;
using namespace mozilla::dom::devicestorage;
using namespace mozilla::dom::icc;
using namespace mozilla::dom::indexedDB;
using namespace mozilla::dom::power;
using namespace mozilla::dom::mobileconnection;
using namespace mozilla::dom::mobilemessage;
using namespace mozilla::dom::telephony;
using namespace mozilla::dom::voicemail;
using namespace mozilla::media;
using namespace mozilla::embedding;
using namespace mozilla::gmp;
using namespace mozilla::hal;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::net;
using namespace mozilla::jsipc;
using namespace mozilla::psm;
using namespace mozilla::widget;
#ifdef ENABLE_TESTS
class BackgroundTester final : public nsIIPCBackgroundChildCreateCallback,
public nsIObserver
{
static uint32_t sCallbackCount;
private:
~BackgroundTester()
{ }
virtual void
ActorCreated(PBackgroundChild* aActor) 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() override
{
MOZ_CRASH("Failed to create a PBackgroundChild actor!");
}
NS_IMETHOD
Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData)
override
{
nsCOMPtr<nsIObserverService> 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<nsIObserverService> observerService =
mozilla::services::GetObserverService();
MOZ_RELEASE_ASSERT(observerService);
nsCOMPtr<nsIObserver> 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<nsConsoleService, void> {
static const nsIID kIID;
};
const nsIID nsIConsoleService::COMTypeInfo<nsConsoleService, void>::kIID = NS_ICONSOLESERVICE_IID;
namespace mozilla {
namespace dom {
#ifdef MOZ_NUWA_PROCESS
int32_t ContentParent::sNuwaPid = 0;
bool ContentParent::sNuwaReady = false;
#endif
#define NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC "ipc:network:set-offline"
#define NS_IPC_IOSERVICE_SET_CONNECTIVITY_TOPIC "ipc:network:set-connectivity"
class MemoryReportRequestParent : public PMemoryReportRequestParent
{
public:
explicit MemoryReportRequestParent(uint32_t aGeneration);
virtual ~MemoryReportRequestParent();
virtual void ActorDestroy(ActorDestroyReason aWhy) override;
virtual bool RecvReport(const MemoryReport& aReport) override;
virtual bool Recv__delete__() override;
private:
const uint32_t mGeneration;
// Non-null if we haven't yet called EndProcessReport() on it.
RefPtr<nsMemoryReporterManager> mReporterManager;
ContentParent* Owner()
{
return static_cast<ContentParent*>(Manager());
}
};
MemoryReportRequestParent::MemoryReportRequestParent(uint32_t aGeneration)
: mGeneration(aGeneration)
{
MOZ_COUNT_CTOR(MemoryReportRequestParent);
mReporterManager = nsMemoryReporterManager::GetOrCreate();
NS_WARN_IF(!mReporterManager);
}
bool
MemoryReportRequestParent::RecvReport(const MemoryReport& aReport)
{
if (mReporterManager) {
mReporterManager->HandleChildReport(mGeneration, aReport);
}
return true;
}
bool
MemoryReportRequestParent::Recv__delete__()
{
// Notifying the reporter manager is done in ActorDestroy, because
// it needs to happen even if the child process exits mid-report.
// (The reporter manager will time out eventually, but let's avoid
// that if possible.)
return true;
}
void
MemoryReportRequestParent::ActorDestroy(ActorDestroyReason aWhy)
{
if (mReporterManager) {
mReporterManager->EndProcessReport(mGeneration, aWhy == Deletion);
mReporterManager = nullptr;
}
}
MemoryReportRequestParent::~MemoryReportRequestParent()
{
MOZ_ASSERT(!mReporterManager);
MOZ_COUNT_DTOR(MemoryReportRequestParent);
}
// IPC receiver for remote GC/CC logging.
class CycleCollectWithLogsParent 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() override
{
Unused << mSink->CloseGCLog();
return true;
}
virtual bool RecvCloseCCLog() override
{
Unused << mSink->CloseCCLog();
return true;
}
virtual bool Recv__delete__() override
{
// Report completion to mCallback only on successful
// completion of the protocol.
nsCOMPtr<nsIFile> 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) 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<nsICycleCollectorLogSink> mSink;
nsCOMPtr<nsIDumpGCAndCCLogsCallback> mCallback;
};
// A memory reporter for ContentParent objects themselves.
class ContentParentsMemoryReporter 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<ContentParent*, 16> 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<nsIContentParent*>(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<nsStringHashKey, ContentParent*>* ContentParent::sAppContentParents;
nsTArray<ContentParent*>* ContentParent::sNonAppContentParents;
nsTArray<ContentParent*>* ContentParent::sPrivateContent;
StaticAutoPtr<LinkedList<ContentParent> > ContentParent::sContentParents;
#if defined(XP_LINUX) && defined(MOZ_CONTENT_SANDBOX)
UniquePtr<SandboxBrokerPolicyFactory> ContentParent::sSandboxBrokerPolicyFactory;
#endif
#ifdef MOZ_NUWA_PROCESS
// The pref updates sent to the Nuwa process.
static nsTArray<PrefSetting>* sNuwaPrefUpdates;
#endif
// This is true when subprocess launching is enabled. This is the
// case between StartUp() and ShutDown() or JoinAllSubprocesses().
static bool sCanLaunchSubprocesses;
// Set to true if the DISABLE_UNSAFE_CPOW_WARNINGS environment variable is
// set.
static bool sDisableUnsafeCPOWWarnings = false;
// 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",
"profile-before-change",
NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC,
NS_IPC_IOSERVICE_SET_CONNECTIVITY_TOPIC,
"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,
NS_VOLUME_REMOVED,
"phone-state-changed",
#endif
#ifdef ACCESSIBILITY
"a11y-init-or-shutdown",
#endif
"app-theme-changed",
#ifdef MOZ_ENABLE_PROFILER_SPS
"profiler-started",
"profiler-stopped",
"profiler-paused",
"profiler-resumed",
"profiler-subprocess-gather",
"profiler-subprocess",
#endif
"gmp-changed",
};
#ifdef MOZ_NUWA_PROCESS
// Contains the observer topics that can be sent to the Nuwa process after it
// becomes ready. The ContentParent instance will unregister sObserverTopics
// if not listed in sNuwaSafeObserverTopics.
static const char* sNuwaSafeObserverTopics[] = {
"xpcom-shutdown",
"profile-before-change",
#ifdef MOZ_WIDGET_GONK
"phone-state-changed",
#endif
#ifdef ACCESSIBILITY
"a11y-init-or-shutdown",
#endif
"nsPref:Changed"
};
#endif
/* static */ already_AddRefed<ContentParent>
ContentParent::RunNuwaProcess()
{
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ContentParent> nuwaProcess =
new ContentParent(/* aApp = */ nullptr,
/* aOpener = */ nullptr,
/* aIsForBrowser = */ false,
/* aIsForPreallocated = */ true,
/* aIsNuwaProcess = */ true);
if (!nuwaProcess->LaunchSubprocess(PROCESS_PRIORITY_BACKGROUND)) {
return nullptr;
}
nuwaProcess->Init();
#ifdef MOZ_NUWA_PROCESS
sNuwaPid = nuwaProcess->Pid();
sNuwaReady = false;
#endif
return nuwaProcess.forget();
}
// PreallocateAppProcess is called by the PreallocatedProcessManager.
// ContentParent then takes this process back within
// GetNewOrPreallocatedAppProcess.
/*static*/ already_AddRefed<ContentParent>
ContentParent::PreallocateAppProcess()
{
RefPtr<ContentParent> process =
new ContentParent(/* app = */ nullptr,
/* aOpener = */ nullptr,
/* isForBrowserElement = */ false,
/* isForPreallocated = */ true);
if (!process->LaunchSubprocess(PROCESS_PRIORITY_PREALLOC)) {
return nullptr;
}
process->Init();
return process.forget();
}
/*static*/ already_AddRefed<ContentParent>
ContentParent::GetNewOrPreallocatedAppProcess(mozIApplication* aApp,
ProcessPriority aInitialPriority,
ContentParent* aOpener,
/*out*/ bool* aTookPreAllocated)
{
MOZ_ASSERT(aApp);
RefPtr<ContentParent> 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("GetNewOrPreallocatedAppProcess");
}
else {
nsAutoString manifestURL;
if (NS_FAILED(aApp->GetManifestURL(manifestURL))) {
NS_ERROR("Failed to get manifest URL");
return nullptr;
}
process->TransformPreallocatedIntoApp(aOpener,
manifestURL);
process->ForwardKnownInfo();
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);
if (!process->LaunchSubprocess(aInitialPriority)) {
return nullptr;
}
process->Init();
process->ForwardKnownInfo();
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_IsParentProcess()) {
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 (!SandboxInfo::Get().CanSandboxContent()) {
// 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();
BlobParent::Startup(BlobParent::FriendKey());
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();
sDisableUnsafeCPOWWarnings = PR_GetEnv("DISABLE_UNSAFE_CPOW_WARNINGS");
#if defined(XP_LINUX) && defined(MOZ_CONTENT_SANDBOX)
sSandboxBrokerPolicyFactory = MakeUnique<SandboxBrokerPolicyFactory>();
#endif
}
/*static*/ void
ContentParent::ShutDown()
{
// No-op for now. We rely on normal process shutdown and
// ClearOnShutdown() to clean up our state.
sCanLaunchSubprocesses = false;
#if defined(XP_LINUX) && defined(MOZ_CONTENT_SANDBOX)
sSandboxBrokerPolicyFactory = nullptr;
#endif
}
/*static*/ void
ContentParent::JoinProcessesIOThread(const nsTArray<ContentParent*>* aProcesses,
Monitor* aMonitor, bool* aDone)
{
const nsTArray<ContentParent*>& 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<ContentParent*, 8> 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>
ContentParent::GetNewOrUsedBrowserProcess(bool aForBrowserElement,
ProcessPriority aPriority,
ContentParent* aOpener)
{
if (!sNonAppContentParents)
sNonAppContentParents = new nsTArray<ContentParent*>();
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 {
RefPtr<ContentParent> 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.
RefPtr<ContentParent> 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);
if (!p->LaunchSubprocess(aPriority)) {
return nullptr;
}
p->Init();
}
p->ForwardKnownInfo();
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<nsIMozBrowserFrame> browserFrame =
do_QueryInterface(aFrameElement);
if (!browserFrame) {
return PROCESS_PRIORITY_FOREGROUND;
}
return browserFrame->GetIsExpectingSystemMessage() ?
PROCESS_PRIORITY_FOREGROUND_HIGH :
PROCESS_PRIORITY_FOREGROUND;
}
#if defined(XP_WIN)
extern const wchar_t* kPluginWidgetContentParentProperty;
/*static*/ void
ContentParent::SendAsyncUpdate(nsIWidget* aWidget)
{
if (!aWidget || aWidget->Destroyed()) {
return;
}
// Fire off an async request to the plugin to paint its window
HWND hwnd = (HWND)aWidget->GetNativeData(NS_NATIVE_WINDOW);
NS_ASSERTION(hwnd, "Expected valid hwnd value.");
ContentParent* cp = reinterpret_cast<ContentParent*>(
::GetPropW(hwnd, kPluginWidgetContentParentProperty));
if (cp && !cp->IsDestroyed()) {
cp->SendUpdateWindow((uintptr_t)hwnd);
}
}
#endif // defined(XP_WIN)
bool
ContentParent::PreallocatedProcessReady()
{
#ifdef MOZ_NUWA_PROCESS
return PreallocatedProcessManager::PreallocatedProcessReady();
#else
return true;
#endif
}
bool
ContentParent::RecvCreateChildProcess(const IPCTabContext& aContext,
const hal::ProcessPriority& aPriority,
const TabId& aOpenerTabId,
ContentParentId* aCpId,
bool* aIsForApp,
bool* aIsForBrowser,
TabId* aTabId)
{
#if 0
if (!CanOpenBrowser(aContext)) {
return false;
}
#endif
RefPtr<ContentParent> 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<mozIApplication> ownApp = tc.GetTabContext().GetOwnApp();
if (ownApp) {
cp = GetNewOrPreallocatedAppProcess(ownApp,
aPriority,
this);
}
else {
cp = GetNewOrUsedBrowserProcess(/* isBrowserElement = */ true,
aPriority,
this);
}
if (!cp) {
*aCpId = 0;
*aIsForApp = false;
*aIsForBrowser = false;
return true;
}
*aCpId = cp->ChildID();
*aIsForApp = cp->IsForApp();
*aIsForBrowser = cp->IsForBrowser();
ContentProcessManager *cpm = ContentProcessManager::GetSingleton();
cpm->AddContentProcess(cp, this->ChildID());
if (cpm->AddGrandchildProcess(this->ChildID(), cp->ChildID())) {
// Pre-allocate a TabId here to save one time IPC call at app startup.
*aTabId = AllocateTabId(aOpenerTabId,
aContext,
cp->ChildID());
return (*aTabId != 0);
}
return false;
}
bool
ContentParent::RecvBridgeToChildProcess(const ContentParentId& aCpId)
{
ContentProcessManager *cpm = ContentProcessManager::GetSingleton();
ContentParent* cp = cpm->GetContentProcessById(aCpId);
if (cp) {
ContentParentId parentId;
if (cpm->GetParentProcessId(cp->ChildID(), &parentId) &&
parentId == this->ChildID()) {
return NS_SUCCEEDED(PContentBridge::Bridge(this, cp));
}
}
// You can't bridge to a process you didn't open!
KillHard("BridgeToChildProcess");
return false;
}
static nsIDocShell* GetOpenerDocShellHelper(Element* aFrameElement)
{
// Propagate the private-browsing status of the element's parent
// docshell to the remote docshell, via the chrome flags.
nsCOMPtr<Element> 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;
}
return docShell;
}
bool
ContentParent::RecvCreateGMPService()
{
return PGMPService::Open(this);
}
bool
ContentParent::RecvGetGMPPluginVersionForAPI(const nsCString& aAPI,
nsTArray<nsCString>&& aTags,
bool* aHasVersion,
nsCString* aVersion)
{
return GMPServiceParent::RecvGetGMPPluginVersionForAPI(aAPI, Move(aTags),
aHasVersion,
aVersion);
}
bool
ContentParent::RecvIsGMPPresentOnDisk(const nsString& aKeySystem,
const nsCString& aVersion,
bool* aIsPresent,
nsCString* aMessage)
{
#ifdef MOZ_EME
*aIsPresent = MediaKeySystemAccess::IsGMPPresentOnDisk(aKeySystem,
aVersion,
*aMessage);
#else
*aIsPresent = false;
#endif
return true;
}
bool
ContentParent::RecvLoadPlugin(const uint32_t& aPluginId, nsresult* aRv, uint32_t* aRunID)
{
*aRv = NS_OK;
return mozilla::plugins::SetupBridge(aPluginId, this, false, aRv, aRunID);
}
bool
ContentParent::RecvUngrabPointer(const uint32_t& aTime)
{
#if !defined(MOZ_WIDGET_GTK)
NS_RUNTIMEABORT("This message only makes sense on GTK platforms");
return false;
#else
gdk_pointer_ungrab(aTime);
return true;
#endif
}
bool
ContentParent::RecvConnectPluginBridge(const uint32_t& aPluginId, nsresult* aRv)
{
*aRv = NS_OK;
// We don't need to get the run ID for the plugin, since we already got it
// in the first call to SetupBridge in RecvLoadPlugin, so we pass in a dummy
// pointer and just throw it away.
uint32_t dummy = 0;
return mozilla::plugins::SetupBridge(aPluginId, this, true, aRv, &dummy);
}
bool
ContentParent::RecvGetBlocklistState(const uint32_t& aPluginId,
uint32_t* aState)
{
*aState = nsIBlocklistService::STATE_BLOCKED;
RefPtr<nsPluginHost> pluginHost = nsPluginHost::GetInst();
if (!pluginHost) {
NS_WARNING("Plugin host not found");
return false;
}
nsPluginTag* tag = pluginHost->PluginWithId(aPluginId);
if (!tag) {
// Default state is blocked anyway
NS_WARNING("Plugin tag not found. This should never happen, but to avoid a crash we're forcibly blocking it");
return true;
}
return NS_SUCCEEDED(tag->GetBlocklistState(aState));
}
bool
ContentParent::RecvFindPlugins(const uint32_t& aPluginEpoch,
nsresult* aRv,
nsTArray<PluginTag>* aPlugins,
uint32_t* aNewPluginEpoch)
{
*aRv = mozilla::plugins::FindPluginsForContent(aPluginEpoch, aPlugins, aNewPluginEpoch);
return true;
}
/*static*/ TabParent*
ContentParent::CreateBrowserOrApp(const TabContext& aContext,
Element* aFrameElement,
ContentParent* aOpenerContentParent)
{
if (!sCanLaunchSubprocesses) {
return nullptr;
}
if (TabParent* parent = TabParent::GetNextTabParent()) {
parent->SetOwnerElement(aFrameElement);
return parent;
}
ProcessPriority initialPriority = GetInitialProcessPriority(aFrameElement);
bool isInContentProcess = !XRE_IsParentProcess();
TabId tabId;
nsIDocShell* docShell = GetOpenerDocShellHelper(aFrameElement);
TabId openerTabId;
if (docShell) {
openerTabId = TabParent::GetTabIdFrom(docShell);
}
if (aContext.IsBrowserElement() || !aContext.HasOwnApp()) {
RefPtr<TabParent> tp;
RefPtr<nsIContentParent> constructorSender;
if (isInContentProcess) {
MOZ_ASSERT(aContext.IsBrowserElement());
constructorSender = CreateContentBridgeParent(aContext,
initialPriority,
openerTabId,
&tabId);
} else {
if (aOpenerContentParent) {
constructorSender = aOpenerContentParent;
} else {
constructorSender =
GetNewOrUsedBrowserProcess(aContext.IsBrowserElement(),
initialPriority);
if (!constructorSender) {
return nullptr;
}
}
tabId = AllocateTabId(openerTabId,
aContext.AsIPCTabContext(),
constructorSender->ChildID());
}
if (constructorSender) {
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
docShell->GetTreeOwner(getter_AddRefs(treeOwner));
if (!treeOwner) {
return nullptr;
}
nsCOMPtr<nsIWebBrowserChrome> wbc = do_GetInterface(treeOwner);
if (!wbc) {
return nullptr;
}
uint32_t chromeFlags = 0;
wbc->GetChromeFlags(&chromeFlags);
nsCOMPtr<nsILoadContext> 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;
}
if (tabId == 0) {
return nullptr;
}
RefPtr<TabParent> tp(new TabParent(constructorSender, tabId,
aContext, chromeFlags));
tp->SetInitedByParent();
tp->SetOwnerElement(aFrameElement);
PBrowserParent* browser = constructorSender->SendPBrowserConstructor(
// DeallocPBrowserParent() releases this ref.
tp.forget().take(),
tabId,
aContext.AsIPCTabContext(),
chromeFlags,
constructorSender->ChildID(),
constructorSender->IsForApp(),
constructorSender->IsForBrowser());
return TabParent::GetFrom(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.
RefPtr<nsIContentParent> parent;
bool reused = false;
bool tookPreallocated = false;
nsAutoString manifestURL;
if (isInContentProcess) {
parent = CreateContentBridgeParent(aContext,
initialPriority,
openerTabId,
&tabId);
}
else {
nsCOMPtr<mozIApplication> ownApp = aContext.GetOwnApp();
if (!sAppContentParents) {
sAppContentParents =
new nsDataHashtable<nsStringHashKey, ContentParent*>();
}
// 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;
}
RefPtr<ContentParent> 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<nsIAppsService> appsService =
do_GetService(APPS_SERVICE_CONTRACTID);
if (!parentAppManifestURL.IsEmpty() &&
!parentAppManifestURL.Equals(systemAppManifestURL) &&
appsService) {
nsCOMPtr<mozIApplication> parentApp;
nsCOMPtr<mozIApplication> 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);
}
tabId = AllocateTabId(openerTabId,
aContext.AsIPCTabContext(),
p->ChildID());
parent = static_cast<nsIContentParent*>(p);
}
if (!parent || (tabId == 0)) {
return nullptr;
}
uint32_t chromeFlags = 0;
RefPtr<TabParent> tp = new TabParent(parent, tabId, aContext, chromeFlags);
tp->SetInitedByParent();
tp->SetOwnerElement(aFrameElement);
PBrowserParent* browser = parent->SendPBrowserConstructor(
// DeallocPBrowserParent() releases this ref.
RefPtr<TabParent>(tp).forget().take(),
tabId,
aContext.AsIPCTabContext(),
chromeFlags,
parent->ChildID(),
parent->IsForApp(),
parent->IsForBrowser());
if (isInContentProcess) {
// Just return directly without the following check in content process.
return TabParent::GetFrom(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("CreateBrowserOrApp");
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 TabParent::GetFrom(browser);
}
/*static*/ ContentBridgeParent*
ContentParent::CreateContentBridgeParent(const TabContext& aContext,
const hal::ProcessPriority& aPriority,
const TabId& aOpenerTabId,
/*out*/ TabId* aTabId)
{
MOZ_ASSERT(aTabId);
ContentChild* child = ContentChild::GetSingleton();
ContentParentId cpId;
bool isForApp;
bool isForBrowser;
if (!child->SendCreateChildProcess(aContext.AsIPCTabContext(),
aPriority,
aOpenerTabId,
&cpId,
&isForApp,
&isForBrowser,
aTabId)) {
return nullptr;
}
if (cpId == 0) {
return nullptr;
}
if (!child->SendBridgeToChildProcess(cpId)) {
return nullptr;
}
ContentBridgeParent* parent = child->GetLastBridge();
parent->SetChildID(cpId);
parent->SetIsForApp(isForApp);
parent->SetIsForBrowser(isForBrowser);
return parent;
}
void
ContentParent::GetAll(nsTArray<ContentParent*>& aArray)
{
aArray.Clear();
if (!sContentParents) {
return;
}
for (ContentParent* cp = sContentParents->getFirst(); cp;
cp = cp->LinkedListElement<ContentParent>::getNext()) {
if (cp->mIsAlive) {
aArray.AppendElement(cp);
}
}
}
void
ContentParent::GetAllEvenIfDead(nsTArray<ContentParent*>& aArray)
{
aArray.Clear();
if (!sContentParents) {
return;
}
for (ContentParent* cp = sContentParents->getFirst(); cp;
cp = cp->LinkedListElement<ContentParent>::getNext()) {
aArray.AppendElement(cp);
}
}
void
ContentParent::Init()
{
nsCOMPtr<nsIObserverService> 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) {
nsAutoString cpId;
cpId.AppendInt(static_cast<uint64_t>(this->ChildID()));
obs->NotifyObservers(static_cast<nsIObserver*>(this), "ipc:content-created", cpId.get());
}
#ifdef ACCESSIBILITY
// If accessibility is running in chrome process then start it in content
// process.
if (nsIPresShell::IsAccessibilityActive()) {
#if !defined(XP_WIN)
Unused << SendActivateA11y();
#else
// On Windows we currently only enable a11y in the content process
// for testing purposes.
if (Preferences::GetBool(kForceEnableE10sPref, false)) {
Unused << SendActivateA11y();
}
#endif
}
#endif
#ifdef MOZ_ENABLE_PROFILER_SPS
nsCOMPtr<nsIProfiler> profiler(do_GetService("@mozilla.org/tools/profiler;1"));
bool profilerActive = false;
DebugOnly<nsresult> rv = profiler->IsActive(&profilerActive);
MOZ_ASSERT(NS_SUCCEEDED(rv));
if (profilerActive) {
nsCOMPtr<nsIProfilerStartParams> currentProfilerParams;
rv = profiler->GetStartParams(getter_AddRefs(currentProfilerParams));
MOZ_ASSERT(NS_SUCCEEDED(rv));
nsCOMPtr<nsISupports> gatherer;
rv = profiler->GetProfileGatherer(getter_AddRefs(gatherer));
MOZ_ASSERT(NS_SUCCEEDED(rv));
mGatherer = static_cast<ProfileGatherer*>(gatherer.get());
StartProfiler(currentProfilerParams);
}
#endif
}
void
ContentParent::ForwardKnownInfo()
{
MOZ_ASSERT(mMetamorphosed);
if (!mMetamorphosed) {
return;
}
#ifdef MOZ_WIDGET_GONK
InfallibleTArray<VolumeInfo> volumeInfo;
RefPtr<nsVolumeService> vs = nsVolumeService::GetSingleton();
if (vs) {
vs->GetVolumesForIPC(&volumeInfo);
Unused << SendVolumes(volumeInfo);
}
#endif /* MOZ_WIDGET_GONK */
nsCOMPtr<nsISystemMessagesInternal> systemMessenger =
do_GetService("@mozilla.org/system-message-internal;1");
if (systemMessenger && !mIsForBrowser) {
nsCOMPtr<nsIURI> manifestURI;
nsresult rv = NS_NewURI(getter_AddRefs(manifestURI), mAppManifestURL);
if (NS_SUCCEEDED(rv)) {
systemMessenger->RefreshCache(mMessageManager, manifestURI);
}
}
}
namespace {
class SystemMessageHandledListener final
: public nsITimerCallback
, public LinkedListElement<SystemMessageHandledListener>
{
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<SystemMessageHandledListener>();
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) override
{
// Careful: ShutDown() may delete |this|.
ShutDown();
return NS_OK;
}
private:
~SystemMessageHandledListener() {}
static StaticAutoPtr<LinkedList<SystemMessageHandledListener> > sListeners;
void ShutDown()
{
RefPtr<SystemMessageHandledListener> kungFuDeathGrip = this;
ErrorResult rv;
mWakeLock->Unlock(rv);
if (mTimer) {
mTimer->Cancel();
mTimer = nullptr;
}
}
RefPtr<WakeLock> mWakeLock;
nsCOMPtr<nsITimer> mTimer;
};
StaticAutoPtr<LinkedList<SystemMessageHandledListener> >
SystemMessageHandledListener::sListeners;
NS_IMPL_ISUPPORTS(SystemMessageHandledListener,
nsITimerCallback)
class RemoteWindowContext final : public nsIRemoteWindowContext
, public nsIInterfaceRequestor
{
public:
explicit RemoteWindowContext(TabParent* aTabParent)
: mTabParent(aTabParent)
{
}
NS_DECL_ISUPPORTS
NS_DECL_NSIINTERFACEREQUESTOR
NS_DECL_NSIREMOTEWINDOWCONTEXT
private:
~RemoteWindowContext();
RefPtr<TabParent> mTabParent;
};
NS_IMPL_ISUPPORTS(RemoteWindowContext, nsIRemoteWindowContext, nsIInterfaceRequestor)
RemoteWindowContext::~RemoteWindowContext()
{
}
NS_IMETHODIMP
RemoteWindowContext::GetInterface(const nsIID& aIID, void** aSink)
{
return QueryInterface(aIID, aSink);
}
NS_IMETHODIMP
RemoteWindowContext::OpenURI(nsIURI* aURI, uint32_t aFlags)
{
URIParams uri;
SerializeURI(aURI, uri);
Unused << mTabParent->SendOpenURI(uri, aFlags);
return NS_OK;
}
} // 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<nsIMozBrowserFrame> browserFrame =
do_QueryInterface(aFrameElement);
if (!browserFrame ||
!browserFrame->GetIsExpectingSystemMessage()) {
return;
}
RefPtr<PowerManagerService> pms = PowerManagerService::GetInstance();
RefPtr<WakeLock> lock =
pms->NewWakeLockOnBehalfOfProcess(NS_LITERAL_STRING("cpu"), this);
// This object's Init() function keeps it alive.
RefPtr<SystemMessageHandledListener> 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<nsIAppsService> appsService = do_GetService(APPS_SERVICE_CONTRACTID);
NS_ENSURE_TRUE_VOID(appsService);
nsCOMPtr<mozIApplication> app;
appsService->GetAppByManifestURL(aManifestURL, getter_AddRefs(app));
if (!app) {
return;
}
app->GetName(aName);
}
void
ContentParent::TransformPreallocatedIntoApp(ContentParent* aOpener,
const nsAString& aAppManifestURL)
{
MOZ_ASSERT(IsPreallocated());
mMetamorphosed = true;
mOpener = aOpener;
mAppManifestURL = aAppManifestURL;
TryGetNameFromManifestURL(aAppManifestURL, mAppName);
}
void
ContentParent::TransformPreallocatedIntoBrowser(ContentParent* aOpener)
{
// Reset mAppManifestURL, mIsForBrowser and mOSPrivileges for browser.
mMetamorphosed = true;
mOpener = aOpener;
mAppManifestURL.Truncate();
mIsForBrowser = true;
}
void
ContentParent::ShutDownProcess(ShutDownMethod aMethod)
{
#ifdef MOZ_NUWA_PROCESS
if (aMethod == SEND_SHUTDOWN_MESSAGE && IsNuwaProcess()) {
// We shouldn't send shutdown messages to frozen Nuwa processes,
// so just close the channel.
aMethod = CLOSE_CHANNEL;
}
#endif
// Shutting down by sending a shutdown message works differently than the
// other methods. We first call Shutdown() in the child. After the child is
// ready, it calls FinishShutdown() on us. Then we close the channel.
if (aMethod == SEND_SHUTDOWN_MESSAGE) {
if (mIPCOpen && !mShutdownPending && SendShutdown()) {
mShutdownPending = true;
// Start the force-kill timer if we haven't already.
StartForceKillTimer();
}
// If call was not successful, the channel must have been broken
// somehow, and we will clean up the error in ActorDestroy.
return;
}
using mozilla::dom::quota::QuotaManagerService;
if (QuotaManagerService* quotaManagerService = QuotaManagerService::Get()) {
quotaManagerService->AbortOperationsForProcess(mChildID);
}
// If Close() fails with an error, we'll end up back in this function, but
// with aMethod = CLOSE_CHANNEL_WITH_ERROR. It's important that we call
// CloseWithError() in this case; see bug 895204.
if (aMethod == CLOSE_CHANNEL && !mCalledClose) {
// Close() can only be called once: It kicks off the destruction
// sequence.
mCalledClose = true;
Close();
#ifdef MOZ_NUWA_PROCESS
// Kill Nuwa process forcibly to break its IPC channels and finalize
// corresponding parents.
if (IsNuwaProcess()) {
KillHard("ShutDownProcess");
}
#endif
}
if (aMethod == CLOSE_CHANNEL_WITH_ERROR && !mCalledCloseWithError) {
MessageChannel* channel = GetIPCChannel();
if (channel) {
mCalledCloseWithError = true;
channel->CloseWithError();
}
}
const ManagedContainer<POfflineCacheUpdateParent>& ocuParents =
ManagedPOfflineCacheUpdateParent();
for (auto iter = ocuParents.ConstIter(); !iter.Done(); iter.Next()) {
RefPtr<mozilla::docshell::OfflineCacheUpdateParent> ocuParent =
static_cast<mozilla::docshell::OfflineCacheUpdateParent*>(iter.Get()->GetKey());
ocuParent->StopSendingMessagesToChild();
}
// 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();
}
bool
ContentParent::RecvFinishShutdown()
{
// At this point, we already called ShutDownProcess once with
// SEND_SHUTDOWN_MESSAGE. To actually close the channel, we call
// ShutDownProcess again with CLOSE_CHANNEL.
MOZ_ASSERT(mShutdownPending);
ShutDownProcess(CLOSE_CHANNEL);
return true;
}
void
ContentParent::ShutDownMessageManager()
{
if (!mMessageManager) {
return;
}
mMessageManager->ReceiveMessage(
static_cast<nsIContentFrameMessageManager*>(mMessageManager.get()), nullptr,
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;
}
void
ContentParent::OnChannelError()
{
RefPtr<ContentParent> 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)
{
SetOtherProcessId(pid);
#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<nsIPropertyBag2> 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 aCode, const char* aReason)
{
if (MsgDropped == aCode) {
return;
}
// Other errors are big deals.
KillHard(aReason);
}
typedef std::pair<ContentParent*, std::set<uint64_t> > IDPair;
namespace {
std::map<ContentParent*, std::set<uint64_t> >&
NestedBrowserLayerIds()
{
MOZ_ASSERT(NS_IsMainThread());
static std::map<ContentParent*, std::set<uint64_t> > sNestedBrowserIds;
return sNestedBrowserIds;
}
} // namespace
bool
ContentParent::RecvAllocateLayerTreeId(uint64_t* aId)
{
*aId = CompositorParent::AllocateLayerTreeId();
auto iter = NestedBrowserLayerIds().find(this);
if (iter == NestedBrowserLayerIds().end()) {
std::set<uint64_t> 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("DeallocateLayerTreeId");
}
return true;
}
namespace {
void
DelayedDeleteSubprocess(GeckoChildProcessHost* aSubprocess)
{
XRE_GetIOMessageLoop()
->PostTask(FROM_HERE,
new DeleteTask<GeckoChildProcessHost>(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; }
RefPtr<ContentParent> mObj;
};
} // namespace
void
ContentParent::ActorDestroy(ActorDestroyReason why)
{
if (mForceKillTimer) {
mForceKillTimer->Cancel();
mForceKillTimer = nullptr;
}
// Signal shutdown completion regardless of error state, so we can
// finish waiting in the xpcom-shutdown/profile-before-change observer.
mIPCOpen = false;
if (mHangMonitorActor) {
ProcessHangMonitor::RemoveProcess(mHangMonitorActor);
mHangMonitorActor = nullptr;
}
if (why == NormalShutdown && !mCalledClose) {
// If we shut down normally but haven't called Close, assume somebody
// else called Close on us. In that case, we still need to call
// ShutDownProcess below to perform other necessary clean up.
mCalledClose = true;
}
// Make sure we always clean up.
ShutDownProcess(why == NormalShutdown ? CLOSE_CHANNEL
: CLOSE_CHANNEL_WITH_ERROR);
RefPtr<ContentParent> kungFuDeathGrip(this);
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
size_t length = ArrayLength(sObserverTopics);
for (size_t i = 0; i < length; ++i) {
obs->RemoveObserver(static_cast<nsIObserver*>(this),
sObserverTopics[i]);
}
}
// 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;
#ifdef MOZ_ENABLE_PROFILER_SPS
if (mGatherer && !mProfile.IsEmpty()) {
mGatherer->OOPExitProfile(mProfile);
}
#endif
if (obs) {
RefPtr<nsHashPropertyBag> props = new nsHashPropertyBag();
props->SetPropertyAsUint64(NS_LITERAL_STRING("childID"), mChildID);
if (AbnormalShutdown == why) {
Telemetry::Accumulate(Telemetry::SUBPROCESS_ABNORMAL_ABORT,
NS_LITERAL_CSTRING("content"), 1);
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 (PCrashReporterParent* p = LoneManagedOrNullAsserts(ManagedPCrashReporterParent())) {
CrashReporterParent* crashReporter =
static_cast<CrashReporterParent*>(p);
// 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));
}
// if mCreatedPairedMinidumps is true, we've already generated
// parent/child dumps for dekstop crashes.
if (!mCreatedPairedMinidumps) {
crashReporter->GenerateCrashReport(this, nullptr);
}
nsAutoString dumpID(crashReporter->ChildDumpID());
props->SetPropertyAsAString(NS_LITERAL_STRING("dumpID"), dumpID);
}
#endif
}
nsAutoString cpId;
cpId.AppendInt(static_cast<uint64_t>(this->ChildID()));
obs->NotifyObservers((nsIPropertyBag2*) props, "ipc:content-shutdown", cpId.get());
}
// Remove any and all idle listeners.
nsCOMPtr<nsIIdleService> idleService =
do_GetService("@mozilla.org/widget/idleservice;1");
MOZ_ASSERT(idleService);
RefPtr<ParentIdleListener> listener;
for (int32_t i = mIdleListeners.Length() - 1; i >= 0; --i) {
listener = static_cast<ParentIdleListener*>(mIdleListeners[i].get());
idleService->RemoveIdleObserver(listener, listener->mTime);
}
mIdleListeners.Clear();
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));
// Release the appId's reference count of any processes
// created by this ContentParent and the frame opened by this ContentParent
// if this ContentParent crashes.
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
nsTArray<ContentParentId> childIDArray =
cpm->GetAllChildProcessById(this->ChildID());
if (why == AbnormalShutdown) {
nsCOMPtr<nsIPermissionManager> permMgr = services::GetPermissionManager();
if(permMgr) {
// Release the appId's reference count of its child-processes
for (uint32_t i = 0; i < childIDArray.Length(); i++) {
nsTArray<TabContext> tabCtxs = cpm->GetTabContextByContentProcess(childIDArray[i]);
for (uint32_t j = 0 ; j < tabCtxs.Length() ; j++) {
if (tabCtxs[j].OwnOrContainingAppId() != nsIScriptSecurityManager::NO_APP_ID) {
permMgr->ReleaseAppId(tabCtxs[j].OwnOrContainingAppId());
}
}
}
// Release the appId's reference count belong to itself
nsTArray<TabContext> tabCtxs = cpm->GetTabContextByContentProcess(mChildID);
for (uint32_t i = 0; i < tabCtxs.Length() ; i++) {
if (tabCtxs[i].OwnOrContainingAppId()!= nsIScriptSecurityManager::NO_APP_ID) {
permMgr->ReleaseAppId(tabCtxs[i].OwnOrContainingAppId());
}
}
}
}
// Destroy any processes created by this ContentParent
for(uint32_t i = 0; i < childIDArray.Length(); i++) {
ContentParent* cp = cpm->GetContentProcessById(childIDArray[i]);
MessageLoop::current()->PostTask(
FROM_HERE,
NewRunnableMethod(cp, &ContentParent::ShutDownProcess,
SEND_SHUTDOWN_MESSAGE));
}
cpm->RemoveContentProcess(this->ChildID());
if (mDriverCrashGuard) {
mDriverCrashGuard->NotifyCrashed();
}
}
void
ContentParent::NotifyTabDestroying(const TabId& aTabId,
const ContentParentId& aCpId)
{
if (XRE_IsParentProcess()) {
// 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.
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
ContentParent* cp = cpm->GetContentProcessById(aCpId);
if (!cp) {
return;
}
++cp->mNumDestroyingTabs;
nsTArray<TabId> tabIds = cpm->GetTabParentsByProcessId(aCpId);
if (static_cast<size_t>(cp->mNumDestroyingTabs) != tabIds.Length()) {
return;
}
// We're dying now, so prevent this content process from being
// recycled during its shutdown procedure.
cp->MarkAsDead();
cp->StartForceKillTimer();
} else {
ContentChild::GetSingleton()->SendNotifyTabDestroying(aTabId, aCpId);
}
}
void
ContentParent::StartForceKillTimer()
{
if (mForceKillTimer || !mIPCOpen) {
return;
}
int32_t timeoutSecs = Preferences::GetInt("dom.ipc.tabs.shutdownTimeoutSecs", 5);
if (timeoutSecs > 0) {
mForceKillTimer = do_CreateInstance("@mozilla.org/timer;1");
MOZ_ASSERT(mForceKillTimer);
mForceKillTimer->InitWithFuncCallback(ContentParent::ForceKillTimerCallback,
this,
timeoutSecs * 1000,
nsITimer::TYPE_ONE_SHOT);
}
}
void
ContentParent::NotifyTabDestroyed(const TabId& aTabId,
bool aNotifiedDestroying)
{
if (aNotifiedDestroying) {
--mNumDestroyingTabs;
}
nsTArray<PContentPermissionRequestParent*> parentArray =
nsContentPermissionUtils::GetContentPermissionRequestParentById(aTabId);
// Need to close undeleted ContentPermissionRequestParents before tab is closed.
for (auto& permissionRequestParent : parentArray) {
Unused << PContentPermissionRequestParent::Send__delete__(permissionRequestParent);
}
// There can be more than one PBrowser for a given app process
// because of popup windows. When the last one closes, shut
// us down.
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
nsTArray<TabId> tabIds = cpm->GetTabParentsByProcessId(this->ChildID());
if (tabIds.Length() == 1) {
// In the case of normal shutdown, send a shutdown message to child to
// allow it to perform shutdown tasks.
MessageLoop::current()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ContentParent::ShutDownProcess,
SEND_SHUTDOWN_MESSAGE));
}
}
jsipc::CPOWManager*
ContentParent::GetCPOWManager()
{
if (PJavaScriptParent* p = LoneManagedOrNullAsserts(ManagedPJavaScriptParent())) {
return CPOWManagerFor(p);
}
return nullptr;
}
TestShellParent*
ContentParent::CreateTestShell()
{
return static_cast<TestShellParent*>(SendPTestShellConstructor());
}
bool
ContentParent::DestroyTestShell(TestShellParent* aTestShell)
{
return PTestShellParent::Send__delete__(aTestShell);
}
TestShellParent*
ContentParent::GetTestShellSingleton()
{
PTestShellParent* p = LoneManagedOrNullAsserts(ManagedPTestShellParent());
return static_cast<TestShellParent*>(p);
}
void
ContentParent::InitializeMembers()
{
mSubprocess = nullptr;
mChildID = gContentChildID++;
mGeolocationWatchID = -1;
mNumDestroyingTabs = 0;
mIsAlive = true;
mMetamorphosed = false;
mSendPermissionUpdates = false;
mSendDataStoreInfos = false;
mCalledClose = false;
mCalledCloseWithError = false;
mCalledKillHard = false;
mCreatedPairedMinidumps = false;
mShutdownPending = false;
mIPCOpen = true;
mHangMonitorActor = nullptr;
}
bool
ContentParent::LaunchSubprocess(ProcessPriority aInitialPriority /* = PROCESS_PRIORITY_FOREGROUND */)
{
std::vector<std::string> extraArgs;
if (mIsNuwaProcess) {
extraArgs.push_back("-nuwa");
}
if (!mSubprocess->LaunchAndWaitForProcessHandle(extraArgs)) {
MarkAsDead();
return false;
}
Open(mSubprocess->GetChannel(),
base::GetProcId(mSubprocess->GetChildProcessHandle()));
InitInternal(aInitialPriority,
true, /* Setup off-main thread compositing */
true /* Send registered chrome */);
ContentProcessManager::GetSingleton()->AddContentProcess(this);
ProcessHangMonitor::AddProcess(this);
// Set a reply timeout for CPOWs.
SetReplyTimeoutMs(Preferences::GetInt("dom.ipc.cpow.timeout", 0));
return true;
}
ContentParent::ContentParent(mozIApplication* aApp,
ContentParent* aOpener,
bool aIsForBrowser,
bool aIsForPreallocated,
bool aIsNuwaProcess /* = false */)
: nsIContentParent()
, mOpener(aOpener)
, mIsForBrowser(aIsForBrowser)
, mIsNuwaProcess(aIsNuwaProcess)
, mHasGamepadListener(false)
{
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);
if (!aIsNuwaProcess && !aIsForPreallocated) {
mMetamorphosed = true;
}
// Insert ourselves into the global linked list of ContentParent objects.
if (!sContentParents) {
sContentParents = new LinkedList<ContentParent>();
}
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");
#if defined(XP_WIN) && !defined(MOZ_B2G)
// Request Windows message deferral behavior on our side of the PContent
// channel. Generally only applies to the situation where we get caught in
// a deadlock with the plugin process when sending CPOWs.
GetIPCChannel()->SetChannelFlags(MessageChannel::REQUIRE_DEFERRED_MESSAGE_PROTECTION);
#endif
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());
}
#ifdef MOZ_NUWA_PROCESS
static const mozilla::ipc::FileDescriptor*
FindFdProtocolFdMapping(const nsTArray<ProtocolFdMapping>& 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,
InfallibleTArray<ProtocolFdMapping>&& 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);
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(),
base::GetProcId(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 */);
ContentProcessManager::GetSingleton()->AddContentProcess(this);
}
#endif // MOZ_NUWA_PROCESS
ContentParent::~ContentParent()
{
if (mForceKillTimer) {
mForceKillTimer->Cancel();
}
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;
sNuwaPid = 0;
}
#endif
}
void
ContentParent::InitInternal(ProcessPriority aInitialPriority,
bool aSetupOffMainThreadCompositing,
bool aSendRegisteredChrome)
{
if (aSendRegisteredChrome) {
nsCOMPtr<nsIChromeRegistry> registrySvc = nsChromeRegistry::GetService();
nsChromeRegistryChrome* chromeRegistry =
static_cast<nsChromeRegistryChrome*>(registrySvc.get());
chromeRegistry->SendRegisteredChrome(this);
}
if (gAppData) {
nsCString version(gAppData->version);
nsCString buildID(gAppData->buildID);
nsCString name(gAppData->name);
nsCString UAName(gAppData->UAName);
nsCString ID(gAppData->ID);
nsCString vendor(gAppData->vendor);
// Sending all information to content process.
Unused << SendAppInfo(version, buildID, name, UAName, ID, vendor);
}
// Initialize the message manager (and load delayed scripts) now that we
// have established communications with the child.
mMessageManager->InitWithCallback(this);
// 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<bool> opened = PCompositor::Open(this);
MOZ_ASSERT(opened);
opened = PImageBridge::Open(this);
MOZ_ASSERT(opened);
}
#ifdef MOZ_WIDGET_GONK
DebugOnly<bool> opened = PSharedBufferManager::Open(this);
MOZ_ASSERT(opened);
#endif
}
if (gAppData) {
// Sending all information to content process.
Unused << SendAppInit();
}
nsStyleSheetService *sheetService = nsStyleSheetService::GetInstance();
if (sheetService) {
// This looks like a lot of work, but in a normal browser session we just
// send two loads.
for (CSSStyleSheet* sheet : *sheetService->AgentStyleSheets()) {
URIParams uri;
SerializeURI(sheet->GetSheetURI(), uri);
Unused << SendLoadAndRegisterSheet(uri, nsIStyleSheetService::AGENT_SHEET);
}
for (CSSStyleSheet* sheet : *sheetService->UserStyleSheets()) {
URIParams uri;
SerializeURI(sheet->GetSheetURI(), uri);
Unused << SendLoadAndRegisterSheet(uri, nsIStyleSheetService::USER_SHEET);
}
for (CSSStyleSheet* sheet : *sheetService->AuthorStyleSheets()) {
URIParams uri;
SerializeURI(sheet->GetSheetURI(), uri);
Unused << SendLoadAndRegisterSheet(uri, nsIStyleSheetService::AUTHOR_SHEET);
}
}
#ifdef MOZ_CONTENT_SANDBOX
bool shouldSandbox = true;
#ifdef MOZ_NUWA_PROCESS
if (IsNuwaProcess()) {
shouldSandbox = false;
}
#endif
MaybeFileDesc brokerFd = void_t();
#ifdef XP_LINUX
if (shouldSandbox) {
MOZ_ASSERT(!mSandboxBroker);
UniquePtr<SandboxBroker::Policy> policy =
sSandboxBrokerPolicyFactory->GetContentPolicy(Pid());
if (policy) {
brokerFd = FileDescriptor();
mSandboxBroker = SandboxBroker::Create(Move(policy), Pid(),
brokerFd);
if (!mSandboxBroker) {
KillHard("SandboxBroker::Create failed");
return;
}
MOZ_ASSERT(static_cast<const FileDescriptor&>(brokerFd).IsValid());
}
}
#endif
if (shouldSandbox && !SendSetProcessSandbox(brokerFd)) {
KillHard("SandboxInitFailed");
}
#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<PrefSetting>* aPrefs)
{
Preferences::GetPreferences(aPrefs);
return true;
}
bool
ContentParent::RecvReadFontList(InfallibleTArray<FontListEntry>* retValue)
{
#ifdef ANDROID
gfxAndroidPlatform::GetPlatform()->GetSystemFontList(retValue);
#endif
return true;
}
bool
ContentParent::RecvReadDataStorageArray(const nsString& aFilename,
InfallibleTArray<DataStorageItem>* aValues)
{
RefPtr<DataStorage> storage = DataStorage::Get(aFilename);
storage->GetAll(aValues);
return true;
}
bool
ContentParent::RecvReadPermissions(InfallibleTArray<IPC::Permission>* aPermissions)
{
#ifdef MOZ_PERMISSIONS
nsCOMPtr<nsIPermissionManager> permissionManagerIface =
services::GetPermissionManager();
nsPermissionManager* permissionManager =
static_cast<nsPermissionManager*>(permissionManagerIface.get());
MOZ_ASSERT(permissionManager,
"We have no permissionManager in the Chrome process !");
nsCOMPtr<nsISimpleEnumerator> enumerator;
DebugOnly<nsresult> rv = permissionManager->GetEnumerator(getter_AddRefs(enumerator));
MOZ_ASSERT(NS_SUCCEEDED(rv), "Could not get enumerator!");
while(1) {
bool hasMore;
enumerator->HasMoreElements(&hasMore);
if (!hasMore)
break;
nsCOMPtr<nsISupports> supp;
enumerator->GetNext(getter_AddRefs(supp));
nsCOMPtr<nsIPermission> perm = do_QueryInterface(supp);
nsCOMPtr<nsIPrincipal> principal;
perm->GetPrincipal(getter_AddRefs(principal));
nsCString origin;
if (principal) {
principal->GetOrigin(origin);
}
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(origin, type,
capability, expireType,
expireTime));
}
// Ask for future changes
mSendPermissionUpdates = true;
#endif
return true;
}
bool
ContentParent::RecvSetClipboard(const IPCDataTransfer& aDataTransfer,
const bool& aIsPrivateData,
const int32_t& aWhichClipboard)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
nsCOMPtr<nsITransferable> trans = do_CreateInstance("@mozilla.org/widget/transferable;1", &rv);
NS_ENSURE_SUCCESS(rv, true);
trans->Init(nullptr);
const nsTArray<IPCDataTransferItem>& items = aDataTransfer.items();
for (uint32_t j = 0; j < items.Length(); ++j) {
const IPCDataTransferItem& item = items[j];
trans->AddDataFlavor(item.flavor().get());
if (item.data().type() == IPCDataTransferData::TnsString) {
nsCOMPtr<nsISupportsString> dataWrapper =
do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, true);
nsString text = item.data().get_nsString();
rv = dataWrapper->SetData(text);
NS_ENSURE_SUCCESS(rv, true);
rv = trans->SetTransferData(item.flavor().get(), dataWrapper,
text.Length() * sizeof(char16_t));
NS_ENSURE_SUCCESS(rv, true);
} else if (item.data().type() == IPCDataTransferData::TnsCString) {
if (item.flavor().EqualsLiteral(kNativeImageMime) ||
item.flavor().EqualsLiteral(kJPEGImageMime) ||
item.flavor().EqualsLiteral(kJPGImageMime) ||
item.flavor().EqualsLiteral(kPNGImageMime) ||
item.flavor().EqualsLiteral(kGIFImageMime)) {
const IPCDataTransferImage& imageDetails = item.imageDetails();
const gfx::IntSize size(imageDetails.width(), imageDetails.height());
if (!size.width || !size.height) {
return true;
}
nsCString text = item.data().get_nsCString();
RefPtr<gfx::DataSourceSurface> image =
new mozilla::gfx::SourceSurfaceRawData();
mozilla::gfx::SourceSurfaceRawData* raw =
static_cast<mozilla::gfx::SourceSurfaceRawData*>(image.get());
raw->InitWrappingData(
reinterpret_cast<uint8_t*>(const_cast<nsCString&>(text).BeginWriting()),
size, imageDetails.stride(),
static_cast<mozilla::gfx::SurfaceFormat>(imageDetails.format()), false);
raw->GuaranteePersistance();
RefPtr<gfxDrawable> drawable = new gfxSurfaceDrawable(image, size);
nsCOMPtr<imgIContainer> imageContainer(image::ImageOps::CreateFromDrawable(drawable));
nsCOMPtr<nsISupportsInterfacePointer>
imgPtr(do_CreateInstance(NS_SUPPORTS_INTERFACE_POINTER_CONTRACTID, &rv));
rv = imgPtr->SetData(imageContainer);
NS_ENSURE_SUCCESS(rv, true);
trans->SetTransferData(item.flavor().get(), imgPtr, sizeof(nsISupports*));
} else {
nsCOMPtr<nsISupportsCString> dataWrapper =
do_CreateInstance(NS_SUPPORTS_CSTRING_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, true);
const nsCString& text = item.data().get_nsCString();
rv = dataWrapper->SetData(text);
NS_ENSURE_SUCCESS(rv, true);
rv = trans->SetTransferData(item.flavor().get(), dataWrapper,
text.Length());
NS_ENSURE_SUCCESS(rv, true);
}
}
}
trans->SetIsPrivateData(aIsPrivateData);
clipboard->SetData(trans, nullptr, aWhichClipboard);
return true;
}
bool
ContentParent::RecvGetClipboard(nsTArray<nsCString>&& aTypes,
const int32_t& aWhichClipboard,
IPCDataTransfer* aDataTransfer)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
nsCOMPtr<nsITransferable> trans = do_CreateInstance("@mozilla.org/widget/transferable;1", &rv);
NS_ENSURE_SUCCESS(rv, true);
trans->Init(nullptr);
for (uint32_t t = 0; t < aTypes.Length(); t++) {
trans->AddDataFlavor(aTypes[t].get());
}
clipboard->GetData(trans, aWhichClipboard);
nsContentUtils::TransferableToIPCTransferable(trans, aDataTransfer,
true, nullptr, this);
return true;
}
bool
ContentParent::RecvEmptyClipboard(const int32_t& aWhichClipboard)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
clipboard->EmptyClipboard(aWhichClipboard);
return true;
}
bool
ContentParent::RecvClipboardHasType(nsTArray<nsCString>&& aTypes,
const int32_t& aWhichClipboard,
bool* aHasType)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
const char** typesChrs = new const char *[aTypes.Length()];
for (uint32_t t = 0; t < aTypes.Length(); t++) {
typesChrs[t] = aTypes[t].get();
}
clipboard->HasDataMatchingFlavors(typesChrs, aTypes.Length(),
aWhichClipboard, aHasType);
delete [] typesChrs;
return true;
}
bool
ContentParent::RecvGetSystemColors(const uint32_t& colorsCount, InfallibleTArray<uint32_t>* 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<uint8_t>* 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::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::RecvAudioChannelChangeDefVolChannel(const int32_t& aChannel,
const bool& aHidden)
{
RefPtr<AudioChannelService> service = AudioChannelService::GetOrCreate();
MOZ_ASSERT(service);
service->SetDefaultVolumeControlChannelInternal(aChannel,
aHidden, mChildID);
return true;
}
bool
ContentParent::RecvAudioChannelServiceStatus(
const bool& aTelephonyChannel,
const bool& aContentOrNormalChannel,
const bool& aAnyChannel)
{
RefPtr<AudioChannelService> service = AudioChannelService::GetOrCreate();
MOZ_ASSERT(service);
service->ChildStatusReceived(mChildID, aTelephonyChannel,
aContentOrNormalChannel, aAnyChannel);
return true;
}
bool
ContentParent::RecvDataStoreGetStores(
const nsString& aName,
const nsString& aOwner,
const IPC::Principal& aPrincipal,
InfallibleTArray<DataStoreSetting>* aValue)
{
RefPtr<DataStoreService> 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;
}
void
ContentParent::ForkNewProcess(bool aBlocking)
{
#ifdef MOZ_NUWA_PROCESS
uint32_t pid;
auto fds = MakeUnique<nsTArray<ProtocolFdMapping>>();
MOZ_ASSERT(IsNuwaProcess() && mNuwaParent);
if (mNuwaParent->ForkNewProcess(pid, mozilla::Move(fds), aBlocking)) {
OnNewProcessCreated(pid, mozilla::Move(fds));
}
#else
NS_ERROR("ContentParent::ForkNewProcess() not implemented!");
#endif
}
#ifdef MOZ_NUWA_PROCESS
// Keep only observer topics listed in sNuwaSafeObserverTopics and unregister
// all the other registered topics.
static void
KeepNuwaSafeObserverTopics(ContentParent* aNuwaContentParent)
{
MOZ_ASSERT(aNuwaContentParent && aNuwaContentParent->IsNuwaProcess());
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (!obs) {
return;
}
size_t topicLength = ArrayLength(sObserverTopics);
for (size_t i = 0; i < topicLength; ++i) {
bool nuwaSafe = false;
size_t safeTopicLength = ArrayLength(sNuwaSafeObserverTopics);
for (size_t j = 0; j < safeTopicLength; j++) {
if (!nsCRT::strcmp(sObserverTopics[i],
sNuwaSafeObserverTopics[j])) {
// In the whitelist: don't need to unregister.
nuwaSafe = true;
break;
}
}
if (!nuwaSafe) {
obs->RemoveObserver(aNuwaContentParent, sObserverTopics[i]);
}
}
}
#endif
void
ContentParent::OnNuwaReady()
{
#ifdef MOZ_NUWA_PROCESS
// Protection from unauthorized IPC message is done in PNuwa protocol.
// Just assert that this actor is really for the Nuwa process.
MOZ_ASSERT(IsNuwaProcess());
sNuwaReady = true;
KeepNuwaSafeObserverTopics(this);
PreallocatedProcessManager::OnNuwaReady();
return;
#else
NS_ERROR("ContentParent::OnNuwaReady() not implemented!");
return;
#endif
}
void
ContentParent::OnNewProcessCreated(uint32_t aPid,
UniquePtr<nsTArray<ProtocolFdMapping>>&& aFds)
{
#ifdef MOZ_NUWA_PROCESS
// Protection from unauthorized IPC message is done in PNuwa protocol.
// Just assert that this actor is really for the Nuwa process.
MOZ_ASSERT(IsNuwaProcess());
RefPtr<ContentParent> content;
content = new ContentParent(this,
MAGIC_PREALLOCATED_APP_MANIFEST_URL,
aPid,
Move(*aFds.get()));
content->Init();
size_t numNuwaPrefUpdates = sNuwaPrefUpdates ?
sNuwaPrefUpdates->Length() : 0;
// Resend pref updates to the forked child.
for (size_t i = 0; i < numNuwaPrefUpdates; i++) {
mozilla::Unused << content->SendPreferenceUpdate(sNuwaPrefUpdates->ElementAt(i));
}
// Update offline settings.
bool isOffline, isLangRTL;
bool isConnected;
InfallibleTArray<nsString> unusedDictionaries;
ClipboardCapabilities clipboardCaps;
DomainPolicyClone domainPolicy;
StructuredCloneData initialData;
RecvGetXPCOMProcessAttributes(&isOffline, &isConnected,
&isLangRTL, &unusedDictionaries,
&clipboardCaps, &domainPolicy, &initialData);
mozilla::Unused << content->SendSetOffline(isOffline);
mozilla::Unused << content->SendSetConnectivity(isConnected);
MOZ_ASSERT(!clipboardCaps.supportsSelectionClipboard() &&
!clipboardCaps.supportsFindClipboard(),
"Unexpected values");
PreallocatedProcessManager::PublishSpareProcess(content);
return;
#else
NS_ERROR("ContentParent::OnNewProcessCreated() not implemented!");
return;
#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(nsIDOMGeoPositionErrorCallback)
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 (mSubprocess && (!strcmp(aTopic, "profile-before-change") ||
!strcmp(aTopic, "xpcom-shutdown"))) {
// Okay to call ShutDownProcess multiple times.
ShutDownProcess(SEND_SHUTDOWN_MESSAGE);
// Wait for shutdown to complete, so that we receive any shutdown
// data (e.g. telemetry) from the child before we quit.
// This loop terminate prematurely based on mForceKillTimer.
while (mIPCOpen && !mCalledKillHard) {
NS_ProcessNextEvent(nullptr, true);
}
NS_ASSERTION(!mSubprocess, "Close should have nulled mSubprocess");
}
if (!mIsAlive || !mSubprocess)
return NS_OK;
// The Nuwa process unregisters the topics after it becomes ready except for
// the ones listed in sNuwaSafeObserverTopics. If the topic needs to be
// observed by the Nuwa process, either for:
// 1. The topic is safe for the Nuwa process, either:
// 1.1 The state can safely happen (only run on the main thread) in the Nuwa
// process (e.g. "a11y-init-or-shutdown"), or
// 1.2 The topic doesn't send an IPC message (e.g. "xpcom-shutdown").
// 2. The topic needs special handling (e.g. nsPref:Changed),
// add the topic to sNuwaSafeObserverTopics and then handle it if necessary.
// 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 (IsReadyNuwaProcess()) {
// Don't send the pref update to the Nuwa process. Save the update
// to send to the forked child.
if (!sNuwaPrefUpdates) {
sNuwaPrefUpdates = new nsTArray<PrefSetting>();
}
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();
if (!SendSetOffline(!strcmp(offline, "true") ? true : false)) {
return NS_ERROR_NOT_AVAILABLE;
}
}
else if (!strcmp(aTopic, NS_IPC_IOSERVICE_SET_CONNECTIVITY_TOPIC)) {
if (!SendSetConnectivity(NS_LITERAL_STRING("true").Equals(aData))) {
return NS_ERROR_NOT_AVAILABLE;
}
}
// listening for alert notifications
else if (!strcmp(aTopic, "alertfinished") ||
!strcmp(aTopic, "alertclickcallback") ||
!strcmp(aTopic, "alertshow") ||
!strcmp(aTopic, "alertdisablecallback") ||
!strcmp(aTopic, "alertsettingscallback")) {
if (!SendNotifyAlertsObserver(nsDependentCString(aTopic),
nsDependentString(aData)))
return NS_ERROR_NOT_AVAILABLE;
}
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<DeviceStorageFile*>(aSubject);
Unused << SendFilePathUpdate(file->mStorageType, file->mStorageName, file->mPath, creason);
}
#ifdef MOZ_WIDGET_GONK
else if(!strcmp(aTopic, NS_VOLUME_STATE_CHANGED)) {
nsCOMPtr<nsIVolume> 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;
bool isUnmounting;
bool isRemovable;
bool isHotSwappable;
vol->GetName(volName);
vol->GetMountPoint(mountPoint);
vol->GetState(&state);
vol->GetMountGeneration(&mountGeneration);
vol->GetIsMediaPresent(&isMediaPresent);
vol->GetIsSharing(&isSharing);
vol->GetIsFormatting(&isFormatting);
vol->GetIsFake(&isFake);
vol->GetIsUnmounting(&isUnmounting);
vol->GetIsRemovable(&isRemovable);
vol->GetIsHotSwappable(&isHotSwappable);
Unused << SendFileSystemUpdate(volName, mountPoint, state,
mountGeneration, isMediaPresent,
isSharing, isFormatting, isFake,
isUnmounting, isRemovable, isHotSwappable);
} else if (!strcmp(aTopic, "phone-state-changed")) {
nsString state(aData);
Unused << SendNotifyPhoneStateChange(state);
}
else if(!strcmp(aTopic, NS_VOLUME_REMOVED)) {
nsString volName(aData);
Unused << SendVolumeRemoved(volName);
}
#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")) {
#if !defined(XP_WIN)
Unused << SendActivateA11y();
#else
// On Windows we currently only enable a11y in the content process
// for testing purposes.
if (Preferences::GetBool(kForceEnableE10sPref, false)) {
Unused << SendActivateA11y();
}
#endif
}
#endif
else if (!strcmp(aTopic, "app-theme-changed")) {
Unused << SendOnAppThemeChanged();
}
#ifdef MOZ_ENABLE_PROFILER_SPS
else if (!strcmp(aTopic, "profiler-started")) {
nsCOMPtr<nsIProfilerStartParams> params(do_QueryInterface(aSubject));
StartProfiler(params);
}
else if (!strcmp(aTopic, "profiler-stopped")) {
mGatherer = nullptr;
Unused << SendStopProfiler();
}
else if (!strcmp(aTopic, "profiler-paused")) {
Unused << SendPauseProfiler(true);
}
else if (!strcmp(aTopic, "profiler-resumed")) {
Unused << SendPauseProfiler(false);
}
else if (!strcmp(aTopic, "profiler-subprocess-gather")) {
if (mGatherer) {
mGatherer->WillGatherOOPProfile();
Unused << SendGatherProfile();
}
}
else if (!strcmp(aTopic, "profiler-subprocess")) {
nsCOMPtr<nsIProfileSaveEvent> pse = do_QueryInterface(aSubject);
if (pse) {
if (!mProfile.IsEmpty()) {
pse->AddSubProfile(mProfile.get());
mProfile.Truncate();
}
}
}
#endif
else if (!strcmp(aTopic, "gmp-changed")) {
Unused << SendNotifyGMPsChanged();
}
return NS_OK;
}
PGMPServiceParent*
ContentParent::AllocPGMPServiceParent(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return GMPServiceParent::Create(aTransport, aOtherProcess);
}
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);
}
PProcessHangMonitorParent*
ContentParent::AllocPProcessHangMonitorParent(Transport* aTransport,
ProcessId aOtherProcess)
{
mHangMonitorActor = CreateHangMonitorParent(this, aTransport, aOtherProcess);
return mHangMonitorActor;
}
PSharedBufferManagerParent*
ContentParent::AllocPSharedBufferManagerParent(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return SharedBufferManagerParent::Create(aTransport, aOtherProcess);
}
bool
ContentParent::RecvGetProcessAttributes(ContentParentId* aCpId,
bool* aIsForApp, bool* aIsForBrowser)
{
*aCpId = mChildID;
*aIsForApp = IsForApp();
*aIsForBrowser = mIsForBrowser;
return true;
}
bool
ContentParent::RecvGetXPCOMProcessAttributes(bool* aIsOffline,
bool* aIsConnected,
bool* aIsLangRTL,
InfallibleTArray<nsString>* dictionaries,
ClipboardCapabilities* clipboardCaps,
DomainPolicyClone* domainPolicy,
StructuredCloneData* aInitialData)
{
nsCOMPtr<nsIIOService> io(do_GetIOService());
MOZ_ASSERT(io, "No IO service?");
DebugOnly<nsresult> rv = io->GetOffline(aIsOffline);
MOZ_ASSERT(NS_SUCCEEDED(rv), "Failed getting offline?");
rv = io->GetConnectivity(aIsConnected);
MOZ_ASSERT(NS_SUCCEEDED(rv), "Failed getting connectivity?");
nsIBidiKeyboard* bidi = nsContentUtils::GetBidiKeyboard();
*aIsLangRTL = false;
if (bidi) {
bidi->IsLangRTL(aIsLangRTL);
}
nsCOMPtr<nsISpellChecker> spellChecker(do_GetService(NS_SPELLCHECKER_CONTRACTID));
MOZ_ASSERT(spellChecker, "No spell checker?");
spellChecker->GetDictionaryList(dictionaries);
nsCOMPtr<nsIClipboard> clipboard(do_GetService("@mozilla.org/widget/clipboard;1"));
MOZ_ASSERT(clipboard, "No clipboard?");
rv = clipboard->SupportsSelectionClipboard(&clipboardCaps->supportsSelectionClipboard());
MOZ_ASSERT(NS_SUCCEEDED(rv));
rv = clipboard->SupportsFindClipboard(&clipboardCaps->supportsFindClipboard());
MOZ_ASSERT(NS_SUCCEEDED(rv));
// Let's copy the domain policy from the parent to the child (if it's active).
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
NS_ENSURE_TRUE(ssm, false);
ssm->CloneDomainPolicy(domainPolicy);
if (nsFrameMessageManager* mm = nsFrameMessageManager::sParentProcessManager) {
AutoJSAPI jsapi;
if (NS_WARN_IF(!jsapi.Init(xpc::PrivilegedJunkScope()))) {
return false;
}
JS::RootedValue init(jsapi.cx());
nsresult result = mm->GetInitialProcessData(jsapi.cx(), &init);
if (NS_FAILED(result)) {
return false;
}
ErrorResult rv;
aInitialData->Write(jsapi.cx(), init, rv);
if (NS_WARN_IF(rv.Failed())) {
return false;
}
}
return true;
}
mozilla::jsipc::PJavaScriptParent *
ContentParent::AllocPJavaScriptParent()
{
MOZ_ASSERT(ManagedPJavaScriptParent().IsEmpty());
return nsIContentParent::AllocPJavaScriptParent();
}
bool
ContentParent::DeallocPJavaScriptParent(PJavaScriptParent *parent)
{
return nsIContentParent::DeallocPJavaScriptParent(parent);
}
PBrowserParent*
ContentParent::AllocPBrowserParent(const TabId& aTabId,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpId,
const bool& aIsForApp,
const bool& aIsForBrowser)
{
return nsIContentParent::AllocPBrowserParent(aTabId,
aContext,
aChromeFlags,
aCpId,
aIsForApp,
aIsForBrowser);
}
bool
ContentParent::DeallocPBrowserParent(PBrowserParent* frame)
{
return nsIContentParent::DeallocPBrowserParent(frame);
}
PDeviceStorageRequestParent*
ContentParent::AllocPDeviceStorageRequestParent(const DeviceStorageParams& aParams)
{
RefPtr<DeviceStorageRequestParent> 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<DeviceStorageRequestParent*>(doomed);
NS_RELEASE(parent);
return true;
}
PFileSystemRequestParent*
ContentParent::AllocPFileSystemRequestParent(const FileSystemParams& aParams)
{
RefPtr<FileSystemRequestParent> result = new FileSystemRequestParent();
if (!result->Dispatch(this, aParams)) {
return nullptr;
}
return result.forget().take();
}
bool
ContentParent::DeallocPFileSystemRequestParent(PFileSystemRequestParent* doomed)
{
FileSystemRequestParent* parent = static_cast<FileSystemRequestParent*>(doomed);
NS_RELEASE(parent);
return true;
}
PBlobParent*
ContentParent::AllocPBlobParent(const BlobConstructorParams& aParams)
{
return nsIContentParent::AllocPBlobParent(aParams);
}
bool
ContentParent::DeallocPBlobParent(PBlobParent* aActor)
{
return nsIContentParent::DeallocPBlobParent(aActor);
}
bool
ContentParent::RecvPBlobConstructor(PBlobParent* aActor,
const BlobConstructorParams& aParams)
{
const ParentBlobConstructorParams& params = aParams.get_ParentBlobConstructorParams();
if (params.blobParams().type() == AnyBlobConstructorParams::TKnownBlobConstructorParams) {
return aActor->SendCreatedFromKnownBlob();
}
return true;
}
mozilla::PRemoteSpellcheckEngineParent *
ContentParent::AllocPRemoteSpellcheckEngineParent()
{
mozilla::RemoteSpellcheckEngineParent *parent = new mozilla::RemoteSpellcheckEngineParent();
return parent;
}
bool
ContentParent::DeallocPRemoteSpellcheckEngineParent(PRemoteSpellcheckEngineParent *parent)
{
delete parent;
return true;
}
/* static */ void
ContentParent::ForceKillTimerCallback(nsITimer* aTimer, void* aClosure)
{
#ifdef ENABLE_TESTS
// We don't want to time out the content process during XPCShell tests. This
// is the easiest way to ensure that.
if (PR_GetEnv("XPCSHELL_TEST_PROFILE_DIR")) {
return;
}
#endif
auto self = static_cast<ContentParent*>(aClosure);
self->KillHard("ShutDownKill");
}
void
ContentParent::KillHard(const char* aReason)
{
// 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;
mForceKillTimer = nullptr;
#if defined(MOZ_CRASHREPORTER) && !defined(MOZ_B2G)
// We're about to kill the child process associated with this content.
// Something has gone wrong to get us here, so we generate a minidump
// of the parent and child for submission to the crash server.
if (PCrashReporterParent* p = LoneManagedOrNullAsserts(ManagedPCrashReporterParent())) {
CrashReporterParent* crashReporter =
static_cast<CrashReporterParent*>(p);
// GeneratePairedMinidump creates two minidumps for us - the main
// one is for the content process we're about to kill, and the other
// one is for the main browser process. That second one is the extra
// minidump tagging along, so we have to tell the crash reporter that
// it exists and is being appended.
nsAutoCString additionalDumps("browser");
crashReporter->AnnotateCrashReport(
NS_LITERAL_CSTRING("additional_minidumps"),
additionalDumps);
if (IsKillHardAnnotationSet()) {
crashReporter->AnnotateCrashReport(
NS_LITERAL_CSTRING("kill_hard"),
GetKillHardAnnotation());
}
nsDependentCString reason(aReason);
crashReporter->AnnotateCrashReport(
NS_LITERAL_CSTRING("ipc_channel_error"),
reason);
// Generate the report and insert into the queue for submittal.
mCreatedPairedMinidumps = crashReporter->GenerateCompleteMinidump(this);
}
#endif
ProcessHandle otherProcessHandle;
if (!base::OpenProcessHandle(OtherPid(), &otherProcessHandle)) {
NS_ERROR("Failed to open child process when attempting kill.");
return;
}
if (!KillProcess(otherProcessHandle, base::PROCESS_END_KILLED_BY_USER,
false)) {
NS_WARNING("failed to kill subprocess!");
}
if (mSubprocess) {
mSubprocess->SetAlreadyDead();
}
// EnsureProcessTerminated has responsibilty for closing otherProcessHandle.
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(&ProcessWatcher::EnsureProcessTerminated,
otherProcessHandle, /*force=*/true));
}
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("<anonymized-name>");
} 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<CrashReporterParent*>(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;
}
devtools::PHeapSnapshotTempFileHelperParent*
ContentParent::AllocPHeapSnapshotTempFileHelperParent()
{
return devtools::HeapSnapshotTempFileHelperParent::Create();
}
bool
ContentParent::DeallocPHeapSnapshotTempFileHelperParent(
devtools::PHeapSnapshotTempFileHelperParent* aHeapSnapshotHelper)
{
delete aHeapSnapshotHelper;
return true;
}
PIccParent*
ContentParent::AllocPIccParent(const uint32_t& aServiceId)
{
if (!AssertAppProcessPermission(this, "mobileconnection")) {
return nullptr;
}
IccParent* parent = new IccParent(aServiceId);
// We release this ref in DeallocPIccParent().
parent->AddRef();
return parent;
}
bool
ContentParent::DeallocPIccParent(PIccParent* aActor)
{
// IccParent is refcounted, must not be freed manually.
static_cast<IccParent*>(aActor)->Release();
return true;
}
PMemoryReportRequestParent*
ContentParent::AllocPMemoryReportRequestParent(const uint32_t& aGeneration,
const bool &aAnonymize,
const bool &aMinimizeMemoryUsage,
const MaybeFileDesc &aDMDFile)
{
MemoryReportRequestParent* parent =
new MemoryReportRequestParent(aGeneration);
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
RefPtr<MobileConnectionParent> 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<MobileConnectionParent*>(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;
}
PPrintingParent*
ContentParent::AllocPPrintingParent()
{
#ifdef NS_PRINTING
return new PrintingParent();
#else
return nullptr;
#endif
}
bool
ContentParent::RecvPPrintingConstructor(PPrintingParent* aActor)
{
return true;
}
bool
ContentParent::DeallocPPrintingParent(PPrintingParent* printing)
{
delete printing;
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;
}
PPSMContentDownloaderParent*
ContentParent::AllocPPSMContentDownloaderParent(const uint32_t& aCertType)
{
RefPtr<PSMContentDownloaderParent> downloader =
new PSMContentDownloaderParent(aCertType);
return downloader.forget().take();
}
bool
ContentParent::DeallocPPSMContentDownloaderParent(PPSMContentDownloaderParent* aListener)
{
auto* listener = static_cast<PSMContentDownloaderParent*>(aListener);
RefPtr<PSMContentDownloaderParent> downloader = dont_AddRef(listener);
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<ExternalHelperAppParent *>(aService);
parent->Release();
return true;
}
PHandlerServiceParent*
ContentParent::AllocPHandlerServiceParent()
{
HandlerServiceParent* actor = new HandlerServiceParent();
actor->AddRef();
return actor;
}
bool
ContentParent::DeallocPHandlerServiceParent(PHandlerServiceParent* aHandlerServiceParent)
{
static_cast<HandlerServiceParent*>(aHandlerServiceParent)->Release();
return true;
}
PCellBroadcastParent*
ContentParent::AllocPCellBroadcastParent()
{
if (!AssertAppProcessPermission(this, "cellbroadcast")) {
return nullptr;
}
CellBroadcastParent* actor = new CellBroadcastParent();
actor->AddRef();
return actor;
}
bool
ContentParent::DeallocPCellBroadcastParent(PCellBroadcastParent* aActor)
{
static_cast<CellBroadcastParent*>(aActor)->Release();
return true;
}
bool
ContentParent::RecvPCellBroadcastConstructor(PCellBroadcastParent* aActor)
{
return static_cast<CellBroadcastParent*>(aActor)->Init();
}
PSmsParent*
ContentParent::AllocPSmsParent()
{
if (!AssertAppProcessPermission(this, "sms")) {
return nullptr;
}
SmsParent* parent = new SmsParent();
parent->AddRef();
return parent;
}
bool
ContentParent::DeallocPSmsParent(PSmsParent* aSms)
{
static_cast<SmsParent*>(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<TelephonyParent*>(aActor)->Release();
return true;
}
PVoicemailParent*
ContentParent::AllocPVoicemailParent()
{
if (!AssertAppProcessPermission(this, "voicemail")) {
return nullptr;
}
VoicemailParent* actor = new VoicemailParent();
actor->AddRef();
return actor;
}
bool
ContentParent::RecvPVoicemailConstructor(PVoicemailParent* aActor)
{
return static_cast<VoicemailParent*>(aActor)->Init();
}
bool
ContentParent::DeallocPVoicemailParent(PVoicemailParent* aActor)
{
static_cast<VoicemailParent*>(aActor)->Release();
return true;
}
media::PMediaParent*
ContentParent::AllocPMediaParent()
{
return media::AllocPMediaParent();
}
bool
ContentParent::DeallocPMediaParent(media::PMediaParent *aActor)
{
return media::DeallocPMediaParent(aActor);
}
PStorageParent*
ContentParent::AllocPStorageParent()
{
return new DOMStorageDBParent();
}
bool
ContentParent::DeallocPStorageParent(PStorageParent* aActor)
{
DOMStorageDBParent* child = static_cast<DOMStorageDBParent*>(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
RefPtr<BluetoothService> btService = BluetoothService::Get();
NS_ENSURE_TRUE(btService, false);
return static_cast<BluetoothParent*>(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
}
PPresentationParent*
ContentParent::AllocPPresentationParent()
{
RefPtr<PresentationParent> actor = new PresentationParent();
return actor.forget().take();
}
bool
ContentParent::DeallocPPresentationParent(PPresentationParent* aActor)
{
RefPtr<PresentationParent> actor =
dont_AddRef(static_cast<PresentationParent*>(aActor));
return true;
}
bool
ContentParent::RecvPPresentationConstructor(PPresentationParent* aActor)
{
return static_cast<PresentationParent*>(aActor)->Init();
}
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;
RefPtr<SpeakerManagerService> service =
SpeakerManagerService::GetOrCreateSpeakerManagerService();
MOZ_ASSERT(service);
*aValue = service->GetSpeakerStatus();
return true;
#endif
return false;
}
bool
ContentParent::RecvSpeakerManagerForceSpeaker(const bool& aEnable)
{
#ifdef MOZ_WIDGET_GONK
RefPtr<SpeakerManagerService> service =
SpeakerManagerService::GetOrCreateSpeakerManagerService();
MOZ_ASSERT(service);
service->ForceSpeaker(aEnable, mChildID);
return true;
#endif
return false;
}
bool
ContentParent::RecvStartVisitedQuery(const URIParams& aURI)
{
nsCOMPtr<nsIURI> newURI = DeserializeURI(aURI);
if (!newURI) {
return false;
}
nsCOMPtr<IHistory> 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<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
nsCOMPtr<nsIURI> ourReferrer = DeserializeURI(referrer);
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->VisitURI(ourURI, ourReferrer, flags);
}
return true;
}
bool
ContentParent::RecvSetURITitle(const URIParams& uri,
const nsString& title)
{
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->SetURITitle(ourURI, title);
}
return true;
}
bool
ContentParent::RecvGetRandomValues(const uint32_t& length,
InfallibleTArray<uint8_t>* randomValues)
{
uint8_t* buf = Crypto::GetRandomValues(length);
if (!buf) {
return true;
}
randomValues->SetCapacity(length);
randomValues->SetLength(length);
memcpy(randomValues->Elements(), buf, length);
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::RecvGetLookAndFeelCache(nsTArray<LookAndFeelInt>* aLookAndFeelIntCache)
{
*aLookAndFeelIntCache = LookAndFeel::GetIntCache();
return true;
}
bool
ContentParent::RecvIsSecureURI(const uint32_t& type,
const URIParams& uri,
const uint32_t& flags,
bool* isSecureURI)
{
nsCOMPtr<nsISiteSecurityService> sss(do_GetService(NS_SSSERVICE_CONTRACTID));
if (!sss) {
return false;
}
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
nsresult rv = sss->IsSecureURI(type, ourURI, flags, isSecureURI);
return NS_SUCCEEDED(rv);
}
bool
ContentParent::RecvAccumulateMixedContentHSTS(const URIParams& aURI, const bool& aActive)
{
nsCOMPtr<nsIURI> ourURI = DeserializeURI(aURI);
if (!ourURI) {
return false;
}
nsMixedContentBlocker::AccumulateMixedContentHSTS(ourURI, aActive);
return true;
}
bool
ContentParent::RecvLoadURIExternal(const URIParams& uri,
PBrowserParent* windowContext)
{
nsCOMPtr<nsIExternalProtocolService> extProtService(do_GetService(NS_EXTERNALPROTOCOLSERVICE_CONTRACTID));
if (!extProtService) {
return true;
}
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
RefPtr<RemoteWindowContext> context =
new RemoteWindowContext(static_cast<TabParent*>(windowContext));
extProtService->LoadURI(ourURI, context);
return true;
}
bool
ContentParent::HasNotificationPermission(const IPC::Principal& aPrincipal)
{
#ifdef MOZ_CHILD_PERMISSIONS
uint32_t permission = mozilla::CheckPermission(this, aPrincipal,
"desktop-notification");
if (permission != nsIPermissionManager::ALLOW_ACTION) {
return false;
}
#endif /* MOZ_CHILD_PERMISSIONS */
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,
const bool& aInPrivateBrowsing)
{
if (!HasNotificationPermission(aPrincipal)) {
return true;
}
nsCOMPtr<nsIAlertsService> sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID));
if (sysAlerts) {
sysAlerts->ShowAlertNotification(aImageUrl, aTitle, aText, aTextClickable,
aCookie, this, aName, aBidi, aLang,
aData, aPrincipal, aInPrivateBrowsing);
}
return true;
}
bool
ContentParent::RecvCloseAlert(const nsString& aName,
const IPC::Principal& aPrincipal)
{
if (!HasNotificationPermission(aPrincipal)) {
return true;
}
nsCOMPtr<nsIAlertsService> sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID));
if (sysAlerts) {
sysAlerts->CloseAlert(aName, aPrincipal);
}
return true;
}
bool
ContentParent::RecvDisableNotifications(const IPC::Principal& aPrincipal)
{
if (HasNotificationPermission(aPrincipal)) {
Unused << Notification::RemovePermission(aPrincipal);
}
return true;
}
bool
ContentParent::RecvOpenNotificationSettings(const IPC::Principal& aPrincipal)
{
if (HasNotificationPermission(aPrincipal)) {
Unused << Notification::OpenSettings(aPrincipal);
}
return true;
}
bool
ContentParent::RecvSyncMessage(const nsString& aMsg,
const ClonedMessageData& aData,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal,
nsTArray<StructuredCloneData>* aRetvals)
{
return nsIContentParent::RecvSyncMessage(aMsg, aData, Move(aCpows),
aPrincipal, aRetvals);
}
bool
ContentParent::RecvRpcMessage(const nsString& aMsg,
const ClonedMessageData& aData,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal,
nsTArray<StructuredCloneData>* aRetvals)
{
return nsIContentParent::RecvRpcMessage(aMsg, aData, Move(aCpows), aPrincipal,
aRetvals);
}
bool
ContentParent::RecvAsyncMessage(const nsString& aMsg,
const ClonedMessageData& aData,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal)
{
return nsIContentParent::RecvAsyncMessage(aMsg, aData, Move(aCpows),
aPrincipal);
}
bool
ContentParent::RecvFilePathUpdateNotify(const nsString& aType,
const nsString& aStorageName,
const nsString& aFilePath,
const nsCString& aReason)
{
RefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(aType,
aStorageName,
aFilePath);
nsCOMPtr<nsIObserverService> 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, nsIDOMGeoPositionErrorCallback* errorCallBack, bool highAccuracy)
{
nsCOMPtr<nsIDOMGeoGeolocation> 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, errorCallBack, 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, this, aHighAccuracy);
// let the the settings cache know the origin of the new listener
nsAutoCString origin;
// hint to the compiler to use the conversion operator to nsIPrincipal*
nsCOMPtr<nsIPrincipal> principal = static_cast<nsIPrincipal*>(aPrincipal);
if (!principal) {
return true;
}
principal->GetOrigin(origin);
RefPtr<nsGeolocationSettings> gs = nsGeolocationSettings::GetGeolocationSettings();
if (gs) {
gs->PutWatchOrigin(mGeolocationWatchID, origin);
}
return true;
}
bool
ContentParent::RecvRemoveGeolocationListener()
{
if (mGeolocationWatchID != -1) {
nsCOMPtr<nsIDOMGeoGeolocation> geo = do_GetService("@mozilla.org/geolocation;1");
if (!geo) {
return true;
}
geo->ClearWatch(mGeolocationWatchID);
RefPtr<nsGeolocationSettings> gs = nsGeolocationSettings::GetGeolocationSettings();
if (gs) {
gs->RemoveWatchOrigin(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) {
nsCString origin;
RefPtr<nsGeolocationSettings> gs = nsGeolocationSettings::GetGeolocationSettings();
// get the origin stored for the curent watch ID
if (gs) {
gs->GetWatchOrigin(mGeolocationWatchID, origin);
}
// remove and recreate a new, high-accuracy listener
RecvRemoveGeolocationListener();
mGeolocationWatchID = AddGeolocationListener(this, this, aEnable);
// map the new watch ID to the origin
if (gs) {
gs->PutWatchOrigin(mGeolocationWatchID, origin);
}
}
return true;
}
NS_IMETHODIMP
ContentParent::HandleEvent(nsIDOMGeoPosition* postion)
{
Unused << SendGeolocationUpdate(GeoPosition(postion));
return NS_OK;
}
NS_IMETHODIMP
ContentParent::HandleEvent(nsIDOMGeoPositionError* postionError)
{
int16_t errorCode;
nsresult rv;
rv = postionError->GetCode(&errorCode);
NS_ENSURE_SUCCESS(rv,rv);
Unused << SendGeolocationError(errorCode);
return NS_OK;
}
nsConsoleService *
ContentParent::GetConsoleService()
{
if (mConsoleService) {
return mConsoleService.get();
}
// XXXkhuey everything about this is terrible.
// 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<nsIConsoleService> consoleService(do_GetService(consoleServiceCID));
mConsoleService = static_cast<nsConsoleService*>(consoleService.get());
return mConsoleService.get();
}
bool
ContentParent::RecvConsoleMessage(const nsString& aMessage)
{
RefPtr<nsConsoleService> consoleService = GetConsoleService();
if (!consoleService) {
return true;
}
RefPtr<nsConsoleMessage> 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)
{
RefPtr<nsConsoleService> consoleService = GetConsoleService();
if (!consoleService) {
return true;
}
nsCOMPtr<nsIScriptError> 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<ContentParent*>();
if (aExist) {
sPrivateContent->AppendElement(this);
} else {
sPrivateContent->RemoveElement(this);
// Only fire the notification if we have private and non-private
// windows: if privatebrowsing.autostart is true, all windows are
// private.
if (!sPrivateContent->Length() &&
!Preferences::GetBool("browser.privatebrowsing.autostart")) {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->NotifyObservers(nullptr, "last-pb-context-exited", nullptr);
delete sPrivateContent;
sPrivateContent = nullptr;
}
}
return true;
}
bool
ContentParent::DoLoadMessageManagerScript(const nsAString& aURL,
bool aRunInGlobalScope)
{
MOZ_ASSERT(!aRunInGlobalScope);
return SendLoadProcessScript(nsString(aURL));
}
nsresult
ContentParent::DoSendAsyncMessage(JSContext* aCx,
const nsAString& aMessage,
StructuredCloneData& aHelper,
JS::Handle<JSObject *> aCpows,
nsIPrincipal* aPrincipal)
{
ClonedMessageData data;
if (!BuildClonedMessageDataForParent(this, aHelper, data)) {
return NS_ERROR_DOM_DATA_CLONE_ERR;
}
InfallibleTArray<CpowEntry> cpows;
jsipc::CPOWManager* mgr = GetCPOWManager();
if (aCpows && (!mgr || !mgr->Wrap(aCx, aCpows, &cpows))) {
return NS_ERROR_UNEXPECTED;
}
if (IsReadyNuwaProcess()) {
// Nuwa won't receive frame messages after it is frozen.
return NS_OK;
}
if (!SendAsyncMessage(nsString(aMessage), data, cpows, Principal(aPrincipal))) {
return NS_ERROR_UNEXPECTED;
}
return NS_OK;
}
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("KillChild");
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 TabId& aTabId,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpId,
const bool& aIsForApp,
const bool& aIsForBrowser)
{
return PContentParent::SendPBrowserConstructor(aActor,
aTabId,
aContext,
aChromeFlags,
aCpId,
aIsForApp,
aIsForBrowser);
}
bool
ContentParent::RecvCreateFakeVolume(const nsString& fsName, const nsString& mountPoint)
{
#ifdef MOZ_WIDGET_GONK
nsresult rv;
nsCOMPtr<nsIVolumeService> 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<nsIVolumeService> 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::RecvRemoveFakeVolume(const nsString& fsName)
{
#ifdef MOZ_WIDGET_GONK
nsresult rv;
nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
if (vs) {
vs->RemoveFakeVolume(fsName);
}
return true;
#else
NS_WARNING("ContentParent::RecvRemoveFakeVolume shouldn't be called when MOZ_WIDGET_GONK is not defined");
return false;
#endif
}
bool
ContentParent::RecvKeywordToURI(const nsCString& aKeyword,
nsString* aProviderName,
OptionalInputStreamParams* aPostData,
OptionalURIParams* aURI)
{
nsCOMPtr<nsIURIFixup> fixup = do_GetService(NS_URIFIXUP_CONTRACTID);
if (!fixup) {
return true;
}
nsCOMPtr<nsIInputStream> postData;
nsCOMPtr<nsIURIFixupInfo> info;
if (NS_FAILED(fixup->KeywordToURI(aKeyword, getter_AddRefs(postData),
getter_AddRefs(info)))) {
return true;
}
info->GetKeywordProviderName(*aProviderName);
nsTArray<mozilla::ipc::FileDescriptor> fds;
SerializeInputStream(postData, *aPostData, fds);
MOZ_ASSERT(fds.IsEmpty());
nsCOMPtr<nsIURI> uri;
info->GetPreferredURI(getter_AddRefs(uri));
SerializeURI(uri, *aURI);
return true;
}
bool
ContentParent::RecvNotifyKeywordSearchLoading(const nsString &aProvider,
const nsString &aKeyword) {
#ifdef MOZ_TOOLKIT_SEARCH
nsCOMPtr<nsIBrowserSearchService> searchSvc = do_GetService("@mozilla.org/browser/search-service;1");
if (searchSvc) {
nsCOMPtr<nsISearchEngine> searchEngine;
searchSvc->GetEngineByName(aProvider, getter_AddRefs(searchEngine));
if (searchEngine) {
nsCOMPtr<nsIObserverService> obsSvc = mozilla::services::GetObserverService();
if (obsSvc) {
// Note that "keyword-search" refers to a search via the url
// bar, not a bookmarks keyword search.
obsSvc->NotifyObservers(searchEngine, "keyword-search", aKeyword.get());
}
}
}
#endif
return true;
}
bool
ContentParent::RecvCopyFavicon(const URIParams& aOldURI,
const URIParams& aNewURI,
const IPC::Principal& aLoadingPrincipal,
const bool& aInPrivateBrowsing)
{
nsCOMPtr<nsIURI> oldURI = DeserializeURI(aOldURI);
if (!oldURI) {
return true;
}
nsCOMPtr<nsIURI> newURI = DeserializeURI(aNewURI);
if (!newURI) {
return true;
}
nsDocShell::CopyFavicon(oldURI, newURI, aLoadingPrincipal, aInPrivateBrowsing);
return true;
}
bool
ContentParent::ShouldContinueFromReplyTimeout()
{
RefPtr<ProcessHangMonitor> monitor = ProcessHangMonitor::Get();
return !monitor || !monitor->ShouldTimeOutCPOWs();
}
bool
ContentParent::RecvRecordingDeviceEvents(const nsString& aRecordingStatus,
const nsString& aPageURL,
const bool& aIsAudio,
const bool& aIsVideo)
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
// recording-device-ipc-events needs to gather more information from content process
RefPtr<nsHashPropertyBag> 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<nsIGfxInfo> gfxInfo = services::GetGfxInfo();
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<nsIIdleService> idleService =
do_GetService("@mozilla.org/widget/idleservice;1", &rv);
NS_ENSURE_SUCCESS(rv, false);
RefPtr<ParentIdleListener> listener =
new ParentIdleListener(this, aObserver, aIdleTimeInS);
rv = idleService->AddIdleObserver(listener, aIdleTimeInS);
NS_ENSURE_SUCCESS(rv, false);
mIdleListeners.AppendElement(listener);
return true;
}
bool
ContentParent::RecvRemoveIdleObserver(const uint64_t& aObserver, const uint32_t& aIdleTimeInS)
{
RefPtr<ParentIdleListener> listener;
for (int32_t i = mIdleListeners.Length() - 1; i >= 0; --i) {
listener = static_cast<ParentIdleListener*>(mIdleListeners[i].get());
if (listener->mObserver == aObserver &&
listener->mTime == aIdleTimeInS) {
nsresult rv;
nsCOMPtr<nsIIdleService> idleService =
do_GetService("@mozilla.org/widget/idleservice;1", &rv);
NS_ENSURE_SUCCESS(rv, false);
idleService->RemoveIdleObserver(listener, aIdleTimeInS);
mIdleListeners.RemoveElementAt(i);
break;
}
}
return true;
}
bool
ContentParent::RecvBackUpXResources(const FileDescriptor& aXSocketFd)
{
#ifndef MOZ_X11
NS_RUNTIMEABORT("This message only makes sense on X11 platforms");
#else
MOZ_ASSERT(0 > mChildXSocketFdDup.get(),
"Already backed up X resources??");
mChildXSocketFdDup.forget();
if (aXSocketFd.IsValid()) {
mChildXSocketFdDup.reset(aXSocketFd.PlatformHandle());
}
#endif
return true;
}
bool
ContentParent::RecvOpenAnonymousTemporaryFile(FileDescOrError *aFD)
{
PRFileDesc *prfd;
nsresult rv = NS_OpenAnonymousTemporaryFile(&prfd);
if (NS_WARN_IF(NS_FAILED(rv))) {
// Returning false will kill the child process; instead
// propagate the error and let the child handle it.
*aFD = rv;
return true;
}
*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;
}
static NS_DEFINE_CID(kFormProcessorCID, NS_FORMPROCESSOR_CID);
bool
ContentParent::RecvKeygenProcessValue(const nsString& oldValue,
const nsString& challenge,
const nsString& keytype,
const nsString& keyparams,
nsString* newValue)
{
nsCOMPtr<nsIFormProcessor> formProcessor =
do_GetService(kFormProcessorCID);
if (!formProcessor) {
newValue->Truncate();
return true;
}
formProcessor->ProcessValueIPC(oldValue, challenge, keytype, keyparams,
*newValue);
return true;
}
bool
ContentParent::RecvKeygenProvideContent(nsString* aAttribute,
nsTArray<nsString>* aContent)
{
nsCOMPtr<nsIFormProcessor> formProcessor =
do_GetService(kFormProcessorCID);
if (!formProcessor) {
return true;
}
formProcessor->ProvideContent(NS_LITERAL_STRING("SELECT"), *aContent,
*aAttribute);
return true;
}
PFileDescriptorSetParent*
ContentParent::AllocPFileDescriptorSetParent(const FileDescriptor& aFD)
{
return new FileDescriptorSetParent(aFD);
}
bool
ContentParent::DeallocPFileDescriptorSetParent(PFileDescriptorSetParent* aActor)
{
delete static_cast<FileDescriptorSetParent*>(aActor);
return true;
}
bool
ContentParent::RecvFlushPendingFileDeletions()
{
RefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::Get();
if (NS_WARN_IF(!mgr)) {
return false;
}
if (NS_WARN_IF(!mgr->IsMainProcess())) {
return false;
}
nsresult rv = mgr->FlushPendingFileDeletions();
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
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;
}
void
ContentParent::NotifyUpdatedDictionaries()
{
nsAutoTArray<ContentParent*, 8> processes;
GetAll(processes);
nsCOMPtr<nsISpellChecker> spellChecker(do_GetService(NS_SPELLCHECKER_CONTRACTID));
MOZ_ASSERT(spellChecker, "No spell checker?");
InfallibleTArray<nsString> dictionaries;
spellChecker->GetDictionaryList(&dictionaries);
for (size_t i = 0; i < processes.Length(); ++i) {
Unused << processes[i]->SendUpdateDictionaryList(dictionaries);
}
}
/*static*/ TabId
ContentParent::AllocateTabId(const TabId& aOpenerTabId,
const IPCTabContext& aContext,
const ContentParentId& aCpId)
{
TabId tabId;
if (XRE_IsParentProcess()) {
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
tabId = cpm->AllocateTabId(aOpenerTabId, aContext, aCpId);
// Add appId's reference count in oop case
if (tabId) {
PermissionManagerAddref(aCpId, tabId);
}
}
else {
ContentChild::GetSingleton()->SendAllocateTabId(aOpenerTabId,
aContext,
aCpId,
&tabId);
}
return tabId;
}
/*static*/ void
ContentParent::DeallocateTabId(const TabId& aTabId,
const ContentParentId& aCpId,
bool aMarkedDestroying)
{
if (XRE_IsParentProcess()) {
// Release appId's reference count in oop case
if (aTabId) {
PermissionManagerRelease(aCpId, aTabId);
}
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
ContentParent* cp = cpm->GetContentProcessById(aCpId);
cp->NotifyTabDestroyed(aTabId, aMarkedDestroying);
ContentProcessManager::GetSingleton()->DeallocateTabId(aCpId,
aTabId);
}
else {
ContentChild::GetSingleton()->SendDeallocateTabId(aTabId,
aCpId,
aMarkedDestroying);
}
}
bool
ContentParent::RecvAllocateTabId(const TabId& aOpenerTabId,
const IPCTabContext& aContext,
const ContentParentId& aCpId,
TabId* aTabId)
{
*aTabId = AllocateTabId(aOpenerTabId, aContext, aCpId);
if (!(*aTabId)) {
return false;
}
return true;
}
bool
ContentParent::RecvDeallocateTabId(const TabId& aTabId,
const ContentParentId& aCpId,
const bool& aMarkedDestroying)
{
DeallocateTabId(aTabId, aCpId, aMarkedDestroying);
return true;
}
bool
ContentParent::RecvNotifyTabDestroying(const TabId& aTabId,
const ContentParentId& aCpId)
{
NotifyTabDestroying(aTabId, aCpId);
return true;
}
nsTArray<TabContext>
ContentParent::GetManagedTabContext()
{
return Move(ContentProcessManager::GetSingleton()->
GetTabContextByContentProcess(this->ChildID()));
}
mozilla::docshell::POfflineCacheUpdateParent*
ContentParent::AllocPOfflineCacheUpdateParent(const URIParams& aManifestURI,
const URIParams& aDocumentURI,
const PrincipalInfo& aLoadingPrincipalInfo,
const bool& aStickDocument,
const TabId& aTabId)
{
TabContext tabContext;
if (!ContentProcessManager::GetSingleton()->
GetTabContextByProcessAndTabId(this->ChildID(), aTabId, &tabContext)) {
return nullptr;
}
RefPtr<mozilla::docshell::OfflineCacheUpdateParent> update =
new mozilla::docshell::OfflineCacheUpdateParent(
tabContext.OriginAttributesRef());
// Use this reference as the IPDL reference.
return update.forget().take();
}
bool
ContentParent::RecvPOfflineCacheUpdateConstructor(POfflineCacheUpdateParent* aActor,
const URIParams& aManifestURI,
const URIParams& aDocumentURI,
const PrincipalInfo& aLoadingPrincipal,
const bool& aStickDocument,
const TabId& aTabId)
{
MOZ_ASSERT(aActor);
RefPtr<mozilla::docshell::OfflineCacheUpdateParent> update =
static_cast<mozilla::docshell::OfflineCacheUpdateParent*>(aActor);
nsresult rv = update->Schedule(aManifestURI, aDocumentURI, aLoadingPrincipal, aStickDocument);
if (NS_FAILED(rv) && IsAlive()) {
// Inform the child of failure.
Unused << update->SendFinish(false, false);
}
return true;
}
bool
ContentParent::DeallocPOfflineCacheUpdateParent(POfflineCacheUpdateParent* aActor)
{
// Reclaim the IPDL reference.
RefPtr<mozilla::docshell::OfflineCacheUpdateParent> update =
dont_AddRef(static_cast<mozilla::docshell::OfflineCacheUpdateParent*>(aActor));
return true;
}
PWebrtcGlobalParent *
ContentParent::AllocPWebrtcGlobalParent()
{
#ifdef MOZ_WEBRTC
return WebrtcGlobalParent::Alloc();
#else
return nullptr;
#endif
}
bool
ContentParent::DeallocPWebrtcGlobalParent(PWebrtcGlobalParent *aActor)
{
#ifdef MOZ_WEBRTC
WebrtcGlobalParent::Dealloc(static_cast<WebrtcGlobalParent*>(aActor));
return true;
#else
return false;
#endif
}
bool
ContentParent::RecvSetOfflinePermission(const Principal& aPrincipal)
{
nsIPrincipal* principal = aPrincipal;
nsContentUtils::MaybeAllowOfflineAppByDefault(principal, nullptr);
return true;
}
void
ContentParent::MaybeInvokeDragSession(TabParent* aParent)
{
nsCOMPtr<nsIDragService> dragService =
do_GetService("@mozilla.org/widget/dragservice;1");
if (dragService && dragService->MaybeAddChildProcess(this)) {
// We need to send transferable data to child process.
nsCOMPtr<nsIDragSession> session;
dragService->GetCurrentSession(getter_AddRefs(session));
if (session) {
nsTArray<IPCDataTransfer> dataTransfers;
nsCOMPtr<nsIDOMDataTransfer> domTransfer;
session->GetDataTransfer(getter_AddRefs(domTransfer));
nsCOMPtr<DataTransfer> transfer = do_QueryInterface(domTransfer);
if (!transfer) {
// Pass eDrop to get DataTransfer with external
// drag formats cached.
transfer = new DataTransfer(nullptr, eDrop, true, -1);
session->SetDataTransfer(transfer);
}
// Note, even though this fills the DataTransfer object with
// external data, the data is usually transfered over IPC lazily when
// needed.
transfer->FillAllExternalData();
nsCOMPtr<nsILoadContext> lc = aParent ?
aParent->GetLoadContext() : nullptr;
nsCOMPtr<nsISupportsArray> transferables =
transfer->GetTransferables(lc);
nsContentUtils::TransferablesToIPCTransferables(transferables,
dataTransfers,
false,
nullptr,
this);
uint32_t action;
session->GetDragAction(&action);
mozilla::Unused << SendInvokeDragSession(dataTransfers, action);
}
}
}
bool
ContentParent::RecvUpdateDropEffect(const uint32_t& aDragAction,
const uint32_t& aDropEffect)
{
nsCOMPtr<nsIDragSession> dragSession = nsContentUtils::GetDragSession();
if (dragSession) {
dragSession->SetDragAction(aDragAction);
nsCOMPtr<nsIDOMDataTransfer> dt;
dragSession->GetDataTransfer(getter_AddRefs(dt));
if (dt) {
dt->SetDropEffectInt(aDropEffect);
}
dragSession->UpdateDragEffect();
}
return true;
}
PContentPermissionRequestParent*
ContentParent::AllocPContentPermissionRequestParent(const InfallibleTArray<PermissionRequest>& aRequests,
const IPC::Principal& aPrincipal,
const TabId& aTabId)
{
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
RefPtr<TabParent> tp = cpm->GetTopLevelTabParentByProcessAndTabId(this->ChildID(),
aTabId);
if (!tp) {
return nullptr;
}
return nsContentPermissionUtils::CreateContentPermissionRequestParent(aRequests,
tp->GetOwnerElement(),
aPrincipal,
aTabId);
}
bool
ContentParent::DeallocPContentPermissionRequestParent(PContentPermissionRequestParent* actor)
{
nsContentPermissionUtils::NotifyRemoveContentPermissionRequestParent(actor);
delete actor;
return true;
}
PWebBrowserPersistDocumentParent*
ContentParent::AllocPWebBrowserPersistDocumentParent(PBrowserParent* aBrowser,
const uint64_t& aOuterWindowID)
{
return new WebBrowserPersistDocumentParent();
}
bool
ContentParent::DeallocPWebBrowserPersistDocumentParent(PWebBrowserPersistDocumentParent* aActor)
{
delete aActor;
return true;
}
bool
ContentParent::RecvCreateWindow(PBrowserParent* aThisTab,
PBrowserParent* aNewTab,
const uint32_t& aChromeFlags,
const bool& aCalledFromJS,
const bool& aPositionSpecified,
const bool& aSizeSpecified,
const nsCString& aURI,
const nsString& aName,
const nsCString& aFeatures,
const nsCString& aBaseURI,
nsresult* aResult,
bool* aWindowIsNew,
InfallibleTArray<FrameScriptInfo>* aFrameScripts,
nsCString* aURLToLoad)
{
// We always expect to open a new window here. If we don't, it's an error.
*aWindowIsNew = true;
// The content process should never be in charge of computing whether or
// not a window should be private or remote - the parent will do that.
MOZ_ASSERT(!(aChromeFlags & nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW));
MOZ_ASSERT(!(aChromeFlags & nsIWebBrowserChrome::CHROME_NON_PRIVATE_WINDOW));
MOZ_ASSERT(!(aChromeFlags & nsIWebBrowserChrome::CHROME_PRIVATE_LIFETIME));
MOZ_ASSERT(!(aChromeFlags & nsIWebBrowserChrome::CHROME_REMOTE_WINDOW));
TabParent* thisTabParent = nullptr;
if (aThisTab) {
thisTabParent = TabParent::GetFrom(aThisTab);
}
if (NS_WARN_IF(thisTabParent && thisTabParent->IsBrowserOrApp())) {
return false;
}
nsCOMPtr<nsPIWindowWatcher> pwwatch =
do_GetService(NS_WINDOWWATCHER_CONTRACTID, aResult);
if (NS_WARN_IF(NS_FAILED(*aResult))) {
return true;
}
TabParent* newTab = TabParent::GetFrom(aNewTab);
MOZ_ASSERT(newTab);
// Content has requested that we open this new content window, so
// we must have an opener.
newTab->SetHasContentOpener(true);
nsCOMPtr<nsIContent> frame;
if (thisTabParent) {
frame = do_QueryInterface(thisTabParent->GetOwnerElement());
}
nsCOMPtr<nsPIDOMWindow> parent;
if (frame) {
parent = frame->OwnerDoc()->GetWindow();
// If our chrome window is in the process of closing, don't try to open a
// new tab in it.
if (parent && parent->Closed()) {
parent = nullptr;
}
}
nsCOMPtr<nsIBrowserDOMWindow> browserDOMWin;
if (thisTabParent) {
browserDOMWin = thisTabParent->GetBrowserDOMWindow();
}
// If we haven't found a chrome window to open in, just use the most recently
// opened one.
if (!parent) {
parent = nsContentUtils::GetMostRecentNonPBWindow();
if (NS_WARN_IF(!parent)) {
*aResult = NS_ERROR_FAILURE;
return true;
}
nsCOMPtr<nsIDOMChromeWindow> rootChromeWin = do_QueryInterface(parent);
if (rootChromeWin) {
rootChromeWin->GetBrowserDOMWindow(getter_AddRefs(browserDOMWin));
}
}
int32_t openLocation =
nsWindowWatcher::GetWindowOpenLocation(parent, aChromeFlags, aCalledFromJS,
aPositionSpecified, aSizeSpecified);
MOZ_ASSERT(openLocation == nsIBrowserDOMWindow::OPEN_NEWTAB ||
openLocation == nsIBrowserDOMWindow::OPEN_NEWWINDOW);
// Opening new tabs is the easy case...
if (openLocation == nsIBrowserDOMWindow::OPEN_NEWTAB) {
if (NS_WARN_IF(!browserDOMWin)) {
*aResult = NS_ERROR_FAILURE;
return true;
}
bool isPrivate = false;
if (thisTabParent) {
nsCOMPtr<nsILoadContext> loadContext = thisTabParent->GetLoadContext();
loadContext->GetUsePrivateBrowsing(&isPrivate);
}
nsCOMPtr<nsIOpenURIInFrameParams> params = new nsOpenURIInFrameParams();
params->SetReferrer(NS_ConvertUTF8toUTF16(aBaseURI));
params->SetIsPrivate(isPrivate);
TabParent::AutoUseNewTab aunt(newTab, aWindowIsNew, aURLToLoad);
nsCOMPtr<nsIFrameLoaderOwner> frameLoaderOwner;
browserDOMWin->OpenURIInFrame(nullptr, params,
openLocation,
nsIBrowserDOMWindow::OPEN_NEW,
getter_AddRefs(frameLoaderOwner));
if (!frameLoaderOwner) {
*aWindowIsNew = false;
}
newTab->SwapFrameScriptsFrom(*aFrameScripts);
return true;
}
// WindowWatcher is going to expect a valid URI to open a window
// to. If it can't find one, it's going to attempt to figure one
// out on its own, which is problematic because it can't access
// the document for the remote browser we're opening. Luckily,
// TabChild has sent us a baseURI with which we can ensure that
// the URI we pass to WindowWatcher is valid.
nsCOMPtr<nsIURI> baseURI;
*aResult = NS_NewURI(getter_AddRefs(baseURI), aBaseURI);
if (NS_WARN_IF(NS_FAILED(*aResult))) {
return true;
}
nsAutoCString finalURIString;
if (!aURI.IsEmpty()) {
nsCOMPtr<nsIURI> finalURI;
*aResult = NS_NewURI(getter_AddRefs(finalURI), aURI.get(), baseURI);
if (NS_WARN_IF(NS_FAILED(*aResult))) {
return true;
}
finalURI->GetSpec(finalURIString);
}
nsCOMPtr<nsIDOMWindow> window;
TabParent::AutoUseNewTab aunt(newTab, aWindowIsNew, aURLToLoad);
// If nsWindowWatcher::OpenWindowInternal was passed a nullptr for the URI
// to open in the content process, we indicate that by sending up a voided
// nsString (since primitives are not nullable). If we detect the voided
// nsString, we know that we need to send OpenWindow2 a nullptr for the URI.
const char* uri = aURI.IsVoid() ? nullptr : finalURIString.get();
const char* name = aName.IsVoid() ? nullptr : NS_ConvertUTF16toUTF8(aName).get();
const char* features = aFeatures.IsVoid() ? nullptr : aFeatures.get();
*aResult = pwwatch->OpenWindow2(parent, uri, name, features, aCalledFromJS,
false, false, thisTabParent, nullptr, getter_AddRefs(window));
if (NS_WARN_IF(NS_FAILED(*aResult))) {
return true;
}
*aResult = NS_ERROR_FAILURE;
nsCOMPtr<nsPIDOMWindow> pwindow = do_QueryInterface(window);
if (NS_WARN_IF(!pwindow)) {
return true;
}
nsCOMPtr<nsIDocShell> windowDocShell = pwindow->GetDocShell();
if (NS_WARN_IF(!windowDocShell)) {
return true;
}
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
windowDocShell->GetTreeOwner(getter_AddRefs(treeOwner));
nsCOMPtr<nsIXULWindow> xulWin = do_GetInterface(treeOwner);
if (NS_WARN_IF(!xulWin)) {
return true;
}
nsCOMPtr<nsIXULBrowserWindow> xulBrowserWin;
xulWin->GetXULBrowserWindow(getter_AddRefs(xulBrowserWin));
if (NS_WARN_IF(!xulBrowserWin)) {
return true;
}
nsCOMPtr<nsITabParent> newRemoteTab;
*aResult = xulBrowserWin->ForceInitialBrowserRemote(getter_AddRefs(newRemoteTab));
if (NS_WARN_IF(NS_FAILED(*aResult))) {
return true;
}
MOZ_ASSERT(TabParent::GetFrom(newRemoteTab) == newTab);
newTab->SwapFrameScriptsFrom(*aFrameScripts);
return true;
}
/* static */ bool
ContentParent::PermissionManagerAddref(const ContentParentId& aCpId,
const TabId& aTabId)
{
MOZ_ASSERT(XRE_IsParentProcess(),
"Call PermissionManagerAddref in content process!");
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
uint32_t appId = cpm->GetAppIdByProcessAndTabId(aCpId, aTabId);
nsCOMPtr<nsIPermissionManager> permMgr = services::GetPermissionManager();
if (appId != nsIScriptSecurityManager::NO_APP_ID && permMgr) {
permMgr->AddrefAppId(appId);
return true;
}
return false;
}
/* static */ bool
ContentParent::PermissionManagerRelease(const ContentParentId& aCpId,
const TabId& aTabId)
{
MOZ_ASSERT(XRE_IsParentProcess(),
"Call PermissionManagerRelease in content process!");
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
uint32_t appId = cpm->GetAppIdByProcessAndTabId(aCpId, aTabId);
nsCOMPtr<nsIPermissionManager> permMgr = services::GetPermissionManager();
if (appId != nsIScriptSecurityManager::NO_APP_ID && permMgr) {
permMgr->ReleaseAppId(appId);
return true;
}
return false;
}
bool
ContentParent::RecvGetBrowserConfiguration(const nsCString& aURI, BrowserConfiguration* aConfig)
{
MOZ_ASSERT(XRE_IsParentProcess());
return GetBrowserConfiguration(aURI, *aConfig);;
}
/*static*/ bool
ContentParent::GetBrowserConfiguration(const nsCString& aURI, BrowserConfiguration& aConfig)
{
if (XRE_IsParentProcess()) {
RefPtr<ServiceWorkerRegistrar> swr = ServiceWorkerRegistrar::Get();
MOZ_ASSERT(swr);
swr->GetRegistrations(aConfig.serviceWorkerRegistrations());
return true;
}
return ContentChild::GetSingleton()->SendGetBrowserConfiguration(aURI, &aConfig);
}
bool
ContentParent::RecvGamepadListenerAdded()
{
#ifdef MOZ_GAMEPAD
if (mHasGamepadListener) {
NS_WARNING("Gamepad listener already started, cannot start again!");
return false;
}
mHasGamepadListener = true;
StartGamepadMonitoring();
#endif
return true;
}
bool
ContentParent::RecvGamepadListenerRemoved()
{
#ifdef MOZ_GAMEPAD
if (!mHasGamepadListener) {
NS_WARNING("Gamepad listener already stopped, cannot stop again!");
return false;
}
mHasGamepadListener = false;
MaybeStopGamepadMonitoring();
#endif
return true;
}
bool
ContentParent::RecvProfile(const nsCString& aProfile)
{
#ifdef MOZ_ENABLE_PROFILER_SPS
if (NS_WARN_IF(!mGatherer)) {
return true;
}
mProfile = aProfile;
mGatherer->GatheredOOPProfile();
#endif
return true;
}
bool
ContentParent::RecvGetGraphicsDeviceInitData(DeviceInitData* aOut)
{
gfxPlatform::GetPlatform()->GetDeviceInitData(aOut);
return true;
}
bool
ContentParent::RecvBeginDriverCrashGuard(const uint32_t& aGuardType, bool* aOutCrashed)
{
// Only one driver crash guard should be active at a time, per-process.
MOZ_ASSERT(!mDriverCrashGuard);
UniquePtr<gfx::DriverCrashGuard> guard;
switch (gfx::CrashGuardType(aGuardType)) {
case gfx::CrashGuardType::D3D11Layers:
guard = MakeUnique<gfx::D3D11LayersCrashGuard>(this);
break;
case gfx::CrashGuardType::D3D9Video:
guard = MakeUnique<gfx::D3D9VideoCrashGuard>(this);
break;
case gfx::CrashGuardType::GLContext:
guard = MakeUnique<gfx::GLContextCrashGuard>(this);
break;
default:
MOZ_ASSERT_UNREACHABLE("unknown crash guard type");
return false;
}
if (guard->Crashed()) {
*aOutCrashed = true;
return true;
}
*aOutCrashed = false;
mDriverCrashGuard = Move(guard);
return true;
}
bool
ContentParent::RecvEndDriverCrashGuard(const uint32_t& aGuardType)
{
mDriverCrashGuard = nullptr;
return true;
}
bool
ContentParent::RecvGetDeviceStorageLocation(const nsString& aType,
nsString* aPath) {
#ifdef MOZ_WIDGET_ANDROID
mozilla::AndroidBridge::GetExternalPublicDirectory(aType, *aPath);
return true;
#else
return false;
#endif
}
bool
ContentParent::RecvGetAndroidSystemInfo(AndroidSystemInfo* aInfo)
{
#ifdef MOZ_WIDGET_ANDROID
nsSystemInfo::GetAndroidSystemInfo(aInfo);
return true;
#else
MOZ_CRASH("wrong platform!");
return false;
#endif
}
void
ContentParent::StartProfiler(nsIProfilerStartParams* aParams)
{
#ifdef MOZ_ENABLE_PROFILER_SPS
if (NS_WARN_IF(!aParams)) {
return;
}
ProfilerInitParams ipcParams;
ipcParams.enabled() = true;
aParams->GetEntries(&ipcParams.entries());
aParams->GetInterval(&ipcParams.interval());
ipcParams.features() = aParams->GetFeatures();
ipcParams.threadFilters() = aParams->GetThreadFilterNames();
Unused << SendStartProfiler(ipcParams);
nsCOMPtr<nsIProfiler> profiler(do_GetService("@mozilla.org/tools/profiler;1"));
if (NS_WARN_IF(!profiler)) {
return;
}
nsCOMPtr<nsISupports> gatherer;
profiler->GetProfileGatherer(getter_AddRefs(gatherer));
mGatherer = static_cast<ProfileGatherer*>(gatherer.get());
#endif
}
} // 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;
}
bool
ContentParent::HandleWindowsMessages(const Message& aMsg) const
{
MOZ_ASSERT(aMsg.is_sync());
// a11y messages can be triggered by windows messages, which means if we
// allow handling windows messages while we wait for the response to a sync
// a11y message we can reenter the ipc message sending code.
if (a11y::PDocAccessible::PDocAccessibleStart < aMsg.type() &&
a11y::PDocAccessible::PDocAccessibleEnd > aMsg.type()) {
return false;
}
return true;
}
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