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5aed487614
gecko/dom/ipc/ContentParent.cpp
Jed Davis 5aed487614 Bug 956961 - Open content processes' DMD log files in the parent process. r=njn 
--HG--
extra : rebase_source : 2958f582f43bfac86ec29d784b4fb8825ca17257
extra : histedit_source : 96e39e36cbe506332d761c375b902284a695901a%2C245fc9ec3c6a3bbf4e5e5ce7b0da63f4477f36b9
2014-07-02 15:59:02 -07:00

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114 KiB
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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"
#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 "AppProcessChecker.h"
#include "AudioChannelService.h"
#include "CrashReporterParent.h"
#include "IHistory.h"
#include "IDBFactory.h"
#include "IndexedDBParent.h"
#include "IndexedDatabaseManager.h"
#include "mozIApplication.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/dom/asmjscache/AsmJSCache.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/DataStoreService.h"
#include "mozilla/dom/ExternalHelperAppParent.h"
#include "mozilla/dom/PContentBridgeParent.h"
#include "mozilla/dom/PFileDescriptorSetParent.h"
#include "mozilla/dom/PCycleCollectWithLogsParent.h"
#include "mozilla/dom/PMemoryReportRequestParent.h"
#include "mozilla/dom/power/PowerManagerService.h"
#include "mozilla/dom/DOMStorageIPC.h"
#include "mozilla/dom/bluetooth/PBluetoothParent.h"
#include "mozilla/dom/PFMRadioParent.h"
#include "mozilla/dom/devicestorage/DeviceStorageRequestParent.h"
#include "mozilla/dom/FileSystemRequestParent.h"
#include "mozilla/dom/GeolocationBinding.h"
#include "mozilla/dom/FileDescriptorSetParent.h"
#include "mozilla/dom/telephony/TelephonyParent.h"
#include "mozilla/dom/time/DateCacheCleaner.h"
#include "SmsParent.h"
#include "mozilla/hal_sandbox/PHalParent.h"
#include "mozilla/ipc/BackgroundChild.h"
#include "mozilla/ipc/BackgroundParent.h"
#include "mozilla/ipc/FileDescriptorUtils.h"
#include "mozilla/ipc/TestShellParent.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "mozilla/layers/CompositorParent.h"
#include "mozilla/layers/ImageBridgeParent.h"
#include "mozilla/layers/SharedBufferManagerParent.h"
#include "mozilla/net/NeckoParent.h"
#include "mozilla/Preferences.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/unused.h"
#include "nsAnonymousTemporaryFile.h"
#include "nsAppRunner.h"
#include "nsAutoPtr.h"
#include "nsCDefaultURIFixup.h"
#include "nsCExternalHandlerService.h"
#include "nsCOMPtr.h"
#include "nsChromeRegistryChrome.h"
#include "nsConsoleMessage.h"
#include "nsConsoleService.h"
#include "nsDebugImpl.h"
#include "nsDOMFile.h"
#include "nsFrameMessageManager.h"
#include "nsHashPropertyBag.h"
#include "nsIAlertsService.h"
#include "nsIAppsService.h"
#include "nsIClipboard.h"
#include "nsICycleCollectorListener.h"
#include "nsIDOMGeoGeolocation.h"
#include "mozilla/dom/WakeLock.h"
#include "nsIDOMWindow.h"
#include "nsIExternalProtocolService.h"
#include "nsIGfxInfo.h"
#include "nsIIdleService.h"
#include "nsIJSRuntimeService.h"
#include "nsIMemoryInfoDumper.h"
#include "nsIMemoryReporter.h"
#include "nsIMozBrowserFrame.h"
#include "nsIMutable.h"
#include "nsIObserverService.h"
#include "nsIPresShell.h"
#include "nsIRemoteBlob.h"
#include "nsIScriptError.h"
#include "nsIStyleSheet.h"
#include "nsISupportsPrimitives.h"
#include "nsIURIFixup.h"
#include "nsIWindowWatcher.h"
#include "nsIXULRuntime.h"
#include "nsMemoryInfoDumper.h"
#include "nsMemoryReporterManager.h"
#include "nsServiceManagerUtils.h"
#include "nsStyleSheetService.h"
#include "nsThreadUtils.h"
#include "nsToolkitCompsCID.h"
#include "nsWidgetsCID.h"
#include "PreallocatedProcessManager.h"
#include "ProcessPriorityManager.h"
#include "SandboxHal.h"
#include "StructuredCloneUtils.h"
#include "TabParent.h"
#include "URIUtils.h"
#include "nsIWebBrowserChrome.h"
#include "nsIDocShell.h"
#include "mozilla/net/NeckoMessageUtils.h"
#include "gfxPrefs.h"
#include "prio.h"
#include "private/pprio.h"
#if defined(ANDROID) || defined(LINUX)
#include "nsSystemInfo.h"
#endif
#if defined(XP_LINUX)
#include "mozilla/Hal.h"
#endif
#ifdef ANDROID
# include "gfxAndroidPlatform.h"
#endif
#ifdef MOZ_PERMISSIONS
# include "nsPermissionManager.h"
#endif
#ifdef MOZ_WIDGET_ANDROID
# include "AndroidBridge.h"
#endif
#ifdef MOZ_WIDGET_GONK
#include "nsIVolume.h"
#include "nsIVolumeService.h"
#include "SpeakerManagerService.h"
using namespace mozilla::system;
#endif
#ifdef MOZ_B2G_BT
#include "BluetoothParent.h"
#include "BluetoothService.h"
#endif
#include "JavaScriptParent.h"
#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
static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID);
static const char* sClipboardTextFlavors[] = { kUnicodeMime };
using base::ChildPrivileges;
using base::KillProcess;
using namespace mozilla::dom::bluetooth;
using namespace mozilla::dom::devicestorage;
using namespace mozilla::dom::indexedDB;
using namespace mozilla::dom::power;
using namespace mozilla::dom::mobilemessage;
using namespace mozilla::dom::telephony;
using namespace mozilla::hal;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::net;
using namespace mozilla::jsipc;
#ifdef ENABLE_TESTS
class BackgroundTester MOZ_FINAL : public nsIIPCBackgroundChildCreateCallback,
public nsIObserver
{
static uint32_t sCallbackCount;
private:
~BackgroundTester()
{ }
virtual void
ActorCreated(PBackgroundChild* aActor) MOZ_OVERRIDE
{
MOZ_RELEASE_ASSERT(aActor,
"Failed to create a PBackgroundChild actor!");
NS_NAMED_LITERAL_CSTRING(testStr, "0123456789");
PBackgroundTestChild* testActor =
aActor->SendPBackgroundTestConstructor(testStr);
MOZ_RELEASE_ASSERT(testActor);
if (!sCallbackCount) {
PBackgroundChild* existingBackgroundChild =
BackgroundChild::GetForCurrentThread();
MOZ_RELEASE_ASSERT(existingBackgroundChild);
MOZ_RELEASE_ASSERT(existingBackgroundChild == aActor);
bool ok =
existingBackgroundChild->
SendPBackgroundTestConstructor(testStr);
MOZ_RELEASE_ASSERT(ok);
// Callback 3.
ok = BackgroundChild::GetOrCreateForCurrentThread(this);
MOZ_RELEASE_ASSERT(ok);
}
sCallbackCount++;
}
virtual void
ActorFailed() MOZ_OVERRIDE
{
MOZ_CRASH("Failed to create a PBackgroundChild actor!");
}
NS_IMETHOD
Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData)
MOZ_OVERRIDE
{
nsCOMPtr<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 {
#define NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC "ipc:network:set-offline"
class MemoryReportRequestParent : public PMemoryReportRequestParent
{
public:
MemoryReportRequestParent();
virtual ~MemoryReportRequestParent();
virtual void ActorDestroy(ActorDestroyReason aWhy) MOZ_OVERRIDE;
virtual bool Recv__delete__(const uint32_t& generation, const InfallibleTArray<MemoryReport>& report);
private:
ContentParent* Owner()
{
return static_cast<ContentParent*>(Manager());
}
};
MemoryReportRequestParent::MemoryReportRequestParent()
{
MOZ_COUNT_CTOR(MemoryReportRequestParent);
}
void
MemoryReportRequestParent::ActorDestroy(ActorDestroyReason aWhy)
{
// Implement me! Bug 1005154
}
bool
MemoryReportRequestParent::Recv__delete__(const uint32_t& generation, const InfallibleTArray<MemoryReport>& childReports)
{
nsRefPtr<nsMemoryReporterManager> mgr =
nsMemoryReporterManager::GetOrCreate();
if (mgr) {
mgr->HandleChildReports(generation, childReports);
}
return true;
}
MemoryReportRequestParent::~MemoryReportRequestParent()
{
MOZ_COUNT_DTOR(MemoryReportRequestParent);
}
// IPC receiver for remote GC/CC logging.
class CycleCollectWithLogsParent MOZ_FINAL : public PCycleCollectWithLogsParent
{
public:
~CycleCollectWithLogsParent()
{
MOZ_COUNT_DTOR(CycleCollectWithLogsParent);
}
static bool AllocAndSendConstructor(ContentParent* aManager,
bool aDumpAllTraces,
nsICycleCollectorLogSink* aSink,
nsIDumpGCAndCCLogsCallback* aCallback)
{
CycleCollectWithLogsParent *actor;
FILE* gcLog;
FILE* ccLog;
nsresult rv;
actor = new CycleCollectWithLogsParent(aSink, aCallback);
rv = actor->mSink->Open(&gcLog, &ccLog);
if (NS_WARN_IF(NS_FAILED(rv))) {
delete actor;
return false;
}
return aManager->
SendPCycleCollectWithLogsConstructor(actor,
aDumpAllTraces,
FILEToFileDescriptor(gcLog),
FILEToFileDescriptor(ccLog));
}
private:
virtual bool RecvCloseGCLog() MOZ_OVERRIDE
{
unused << mSink->CloseGCLog();
return true;
}
virtual bool RecvCloseCCLog() MOZ_OVERRIDE
{
unused << mSink->CloseCCLog();
return true;
}
virtual bool Recv__delete__() MOZ_OVERRIDE
{
// Report completion to mCallback only on successful
// completion of the protocol.
nsCOMPtr<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) MOZ_OVERRIDE
{
// If the actor is unexpectedly destroyed, we deliberately
// don't call Close[GC]CLog on the sink, because the logs may
// be incomplete. See also the nsCycleCollectorLogSinkToFile
// implementaiton of those methods, and its destructor.
}
CycleCollectWithLogsParent(nsICycleCollectorLogSink *aSink,
nsIDumpGCAndCCLogsCallback *aCallback)
: mSink(aSink), mCallback(aCallback)
{
MOZ_COUNT_CTOR(CycleCollectWithLogsParent);
}
nsCOMPtr<nsICycleCollectorLogSink> mSink;
nsCOMPtr<nsIDumpGCAndCCLogsCallback> mCallback;
};
// A memory reporter for ContentParent objects themselves.
class ContentParentsMemoryReporter MOZ_FINAL : public nsIMemoryReporter
{
~ContentParentsMemoryReporter() {}
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIMEMORYREPORTER
};
NS_IMPL_ISUPPORTS(ContentParentsMemoryReporter, nsIMemoryReporter)
NS_IMETHODIMP
ContentParentsMemoryReporter::CollectReports(nsIMemoryReporterCallback* cb,
nsISupports* aClosure,
bool aAnonymize)
{
nsAutoTArray<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;
#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;
// The first content child has ID 1, so the chrome process can have ID 0.
static uint64_t gContentChildID = 1;
// We want the prelaunched process to know that it's for apps, but not
// actually for any app in particular. Use a magic manifest URL.
// Can't be a static constant.
#define MAGIC_PREALLOCATED_APP_MANIFEST_URL NS_LITERAL_STRING("{{template}}")
static const char* sObserverTopics[] = {
"xpcom-shutdown",
NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC,
"child-memory-reporter-request",
"memory-pressure",
"child-gc-request",
"child-cc-request",
"child-mmu-request",
"last-pb-context-exited",
"file-watcher-update",
#ifdef MOZ_WIDGET_GONK
NS_VOLUME_STATE_CHANGED,
"phone-state-changed",
#endif
#ifdef ACCESSIBILITY
"a11y-init-or-shutdown",
#endif
};
/* static */ already_AddRefed<ContentParent>
ContentParent::RunNuwaProcess()
{
MOZ_ASSERT(NS_IsMainThread());
nsRefPtr<ContentParent> nuwaProcess =
new ContentParent(/* aApp = */ nullptr,
/* aOpener = */ nullptr,
/* aIsForBrowser = */ false,
/* aIsForPreallocated = */ true,
PROCESS_PRIORITY_BACKGROUND,
/* aIsNuwaProcess = */ true);
nuwaProcess->Init();
return nuwaProcess.forget();
}
// PreallocateAppProcess is called by the PreallocatedProcessManager.
// ContentParent then takes this process back within
// MaybeTakePreallocatedAppProcess.
/*static*/ already_AddRefed<ContentParent>
ContentParent::PreallocateAppProcess()
{
nsRefPtr<ContentParent> process =
new ContentParent(/* app = */ nullptr,
/* aOpener = */ nullptr,
/* isForBrowserElement = */ false,
/* isForPreallocated = */ true,
PROCESS_PRIORITY_PREALLOC);
process->Init();
return process.forget();
}
/*static*/ already_AddRefed<ContentParent>
ContentParent::MaybeTakePreallocatedAppProcess(const nsAString& aAppManifestURL,
ProcessPriority aInitialPriority)
{
nsRefPtr<ContentParent> process = PreallocatedProcessManager::Take();
if (!process) {
return nullptr;
}
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();
return nullptr;
}
process->TransformPreallocatedIntoApp(aAppManifestURL);
return process.forget();
}
/*static*/ void
ContentParent::StartUp()
{
// We could launch sub processes from content process
// FIXME Bug 1023701 - Stop using ContentParent static methods in
// child process
sCanLaunchSubprocesses = true;
if (XRE_GetProcessType() != GeckoProcessType_Default) {
return;
}
// Note: This reporter measures all ContentParents.
RegisterStrongMemoryReporter(new ContentParentsMemoryReporter());
mozilla::dom::time::InitializeDateCacheCleaner();
BackgroundChild::Startup();
// Try to preallocate a process that we can transform into an app later.
PreallocatedProcessManager::AllocateAfterDelay();
// Test the PBackground infrastructure on ENABLE_TESTS builds when a special
// testing preference is set.
MaybeTestPBackground();
}
/*static*/ void
ContentParent::ShutDown()
{
// No-op for now. We rely on normal process shutdown and
// ClearOnShutdown() to clean up our state.
sCanLaunchSubprocesses = false;
}
/*static*/ void
ContentParent::JoinProcessesIOThread(const nsTArray<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::GetNewOrUsed(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 {
nsRefPtr<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.
nsRefPtr<ContentParent> p = PreallocatedProcessManager::Take();
if (p) {
p->TransformPreallocatedIntoBrowser();
} else {
// Failed in using the preallocated process: fork from the chrome process.
#ifdef MOZ_NUWA_PROCESS
if (Preferences::GetBool("dom.ipc.processPrelaunch.enabled", false)) {
// Wait until the Nuwa process forks a new process.
return nullptr;
}
#endif
p = new ContentParent(/* app = */ nullptr,
aOpener,
aForBrowserElement,
/* isForPreallocated = */ false,
aPriority);
p->Init();
}
sNonAppContentParents->AppendElement(p);
return p.forget();
}
/*static*/ ProcessPriority
ContentParent::GetInitialProcessPriority(Element* aFrameElement)
{
// Frames with mozapptype == critical which are expecting a system message
// get FOREGROUND_HIGH priority.
if (!aFrameElement) {
return PROCESS_PRIORITY_FOREGROUND;
}
if (aFrameElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mozapptype,
NS_LITERAL_STRING("inputmethod"), eCaseMatters)) {
return PROCESS_PRIORITY_FOREGROUND_KEYBOARD;
} else if (!aFrameElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mozapptype,
NS_LITERAL_STRING("critical"), eCaseMatters)) {
return PROCESS_PRIORITY_FOREGROUND;
}
nsCOMPtr<nsIMozBrowserFrame> browserFrame =
do_QueryInterface(aFrameElement);
if (!browserFrame) {
return PROCESS_PRIORITY_FOREGROUND;
}
return browserFrame->GetIsExpectingSystemMessage() ?
PROCESS_PRIORITY_FOREGROUND_HIGH :
PROCESS_PRIORITY_FOREGROUND;
}
bool
ContentParent::PreallocatedProcessReady()
{
#ifdef MOZ_NUWA_PROCESS
return PreallocatedProcessManager::PreallocatedProcessReady();
#else
return true;
#endif
}
void
ContentParent::RunAfterPreallocatedProcessReady(nsIRunnable* aRequest)
{
#ifdef MOZ_NUWA_PROCESS
PreallocatedProcessManager::RunAfterPreallocatedProcessReady(aRequest);
#endif
}
typedef std::map<ContentParent*, std::set<ContentParent*> > GrandchildMap;
static GrandchildMap sGrandchildProcessMap;
std::map<uint64_t, ContentParent*> sContentParentMap;
bool
ContentParent::RecvCreateChildProcess(const IPCTabContext& aContext,
const hal::ProcessPriority& aPriority,
uint64_t* aId,
bool* aIsForApp,
bool* aIsForBrowser)
{
#if 0
if (!CanOpenBrowser(aContext)) {
return false;
}
#endif
nsRefPtr<ContentParent> cp = GetNewOrUsed(/* isBrowserElement = */ true,
aPriority,
this);
*aId = cp->ChildID();
*aIsForApp = cp->IsForApp();
*aIsForBrowser = cp->IsForBrowser();
sContentParentMap[*aId] = cp;
auto iter = sGrandchildProcessMap.find(this);
if (iter == sGrandchildProcessMap.end()) {
std::set<ContentParent*> children;
children.insert(cp);
sGrandchildProcessMap[this] = children;
} else {
iter->second.insert(cp);
}
return true;
}
bool
ContentParent::AnswerBridgeToChildProcess(const uint64_t& id)
{
ContentParent* cp = sContentParentMap[id];
auto iter = sGrandchildProcessMap.find(this);
if (iter != sGrandchildProcessMap.end() &&
iter->second.find(cp) != iter->second.end()) {
return PContentBridge::Bridge(this, cp);
} else {
// You can't bridge to a process you didn't open!
KillHard();
return false;
}
}
/*static*/ TabParent*
ContentParent::CreateBrowserOrApp(const TabContext& aContext,
Element* aFrameElement,
ContentParent* aOpenerContentParent)
{
if (!sCanLaunchSubprocesses) {
return nullptr;
}
ProcessPriority initialPriority = GetInitialProcessPriority(aFrameElement);
if (aContext.IsBrowserElement() || !aContext.HasOwnApp()) {
nsRefPtr<TabParent> tp;
nsRefPtr<nsIContentParent> constructorSender;
if (XRE_GetProcessType() != GeckoProcessType_Default) {
MOZ_ASSERT(aContext.IsBrowserElement());
ContentChild* child = ContentChild::GetSingleton();
uint64_t id;
bool isForApp;
bool isForBrowser;
if (!child->SendCreateChildProcess(aContext.AsIPCTabContext(),
initialPriority,
&id,
&isForApp,
&isForBrowser)) {
return nullptr;
}
if (!child->CallBridgeToChildProcess(id)) {
return nullptr;
}
ContentBridgeParent* parent = child->GetLastBridge();
parent->SetChildID(id);
parent->SetIsForApp(isForApp);
parent->SetIsForBrowser(isForBrowser);
constructorSender = parent;
} else {
if (aOpenerContentParent) {
constructorSender = aOpenerContentParent;
} else {
constructorSender = GetNewOrUsed(aContext.IsBrowserElement(), initialPriority);
}
}
if (constructorSender) {
uint32_t chromeFlags = 0;
// Propagate the private-browsing status of the element's parent
// docshell to the remote docshell, via the chrome flags.
nsCOMPtr<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;
}
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;
}
nsRefPtr<TabParent> tp(new TabParent(constructorSender,
aContext, chromeFlags));
tp->SetOwnerElement(aFrameElement);
PBrowserParent* browser = constructorSender->SendPBrowserConstructor(
// DeallocPBrowserParent() releases this ref.
tp.forget().take(),
aContext.AsIPCTabContext(),
chromeFlags,
constructorSender->ChildID(),
constructorSender->IsForApp(),
constructorSender->IsForBrowser());
return static_cast<TabParent*>(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.
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.
nsAutoString manifestURL;
if (NS_FAILED(ownApp->GetManifestURL(manifestURL))) {
NS_ERROR("Failed to get manifest URL");
return nullptr;
}
nsRefPtr<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;
}
}
if (!p) {
p = MaybeTakePreallocatedAppProcess(manifestURL,
initialPriority);
if (!p) {
#ifdef MOZ_NUWA_PROCESS
if (Preferences::GetBool("dom.ipc.processPrelaunch.enabled",
false)) {
// Returning nullptr from here so the frame loader will retry
// later when we have a spare process.
return nullptr;
}
#endif
NS_WARNING("Unable to use pre-allocated app process");
p = new ContentParent(ownApp,
/* aOpener = */ nullptr,
/* isForBrowserElement = */ false,
/* isForPreallocated = */ false,
initialPriority);
p->Init();
}
sAppContentParents->Put(manifestURL, p);
}
uint32_t chromeFlags = 0;
nsRefPtr<TabParent> tp = new TabParent(p, aContext, chromeFlags);
tp->SetOwnerElement(aFrameElement);
PBrowserParent* browser = p->SendPBrowserConstructor(
// DeallocPBrowserParent() releases this ref.
nsRefPtr<TabParent>(tp).forget().take(),
aContext.AsIPCTabContext(),
chromeFlags,
p->ChildID(),
p->IsForApp(),
p->IsForBrowser());
p->MaybeTakeCPUWakeLock(aFrameElement);
return static_cast<TabParent*>(browser);
}
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) {
obs->NotifyObservers(static_cast<nsIObserver*>(this), "ipc:content-created", nullptr);
}
#ifdef ACCESSIBILITY
// If accessibility is running in chrome process then start it in content
// process.
if (nsIPresShell::IsAccessibilityActive()) {
unused << SendActivateA11y();
}
#endif
DebugOnly<FileUpdateDispatcher*> observer = FileUpdateDispatcher::GetSingleton();
NS_ASSERTION(observer, "FileUpdateDispatcher is null");
}
namespace {
class SystemMessageHandledListener MOZ_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)
{
// Careful: ShutDown() may delete |this|.
ShutDown();
return NS_OK;
}
private:
~SystemMessageHandledListener() {}
static StaticAutoPtr<LinkedList<SystemMessageHandledListener> > sListeners;
void ShutDown()
{
nsRefPtr<SystemMessageHandledListener> kungFuDeathGrip = this;
ErrorResult rv;
mWakeLock->Unlock(rv);
if (mTimer) {
mTimer->Cancel();
mTimer = nullptr;
}
}
nsRefPtr<WakeLock> mWakeLock;
nsCOMPtr<nsITimer> mTimer;
};
StaticAutoPtr<LinkedList<SystemMessageHandledListener> >
SystemMessageHandledListener::sListeners;
NS_IMPL_ISUPPORTS(SystemMessageHandledListener,
nsITimerCallback)
} // anonymous namespace
void
ContentParent::MaybeTakeCPUWakeLock(Element* aFrameElement)
{
// Take the CPU wake lock on behalf of this processs if it's expecting a
// system message. We'll release the CPU lock once the message is
// delivered, or after some period of time, which ever comes first.
nsCOMPtr<nsIMozBrowserFrame> browserFrame =
do_QueryInterface(aFrameElement);
if (!browserFrame ||
!browserFrame->GetIsExpectingSystemMessage()) {
return;
}
nsRefPtr<PowerManagerService> pms = PowerManagerService::GetInstance();
nsRefPtr<WakeLock> lock =
pms->NewWakeLockOnBehalfOfProcess(NS_LITERAL_STRING("cpu"), this);
// This object's Init() function keeps it alive.
nsRefPtr<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(const nsAString& aAppManifestURL)
{
MOZ_ASSERT(IsPreallocated());
mAppManifestURL = aAppManifestURL;
TryGetNameFromManifestURL(aAppManifestURL, mAppName);
}
void
ContentParent::TransformPreallocatedIntoBrowser()
{
// Reset mAppManifestURL, mIsForBrowser and mOSPrivileges for browser.
mAppManifestURL.Truncate();
mIsForBrowser = true;
}
void
ContentParent::ShutDownProcess(bool aCloseWithError)
{
const InfallibleTArray<PIndexedDBParent*>& idbParents =
ManagedPIndexedDBParent();
for (uint32_t i = 0; i < idbParents.Length(); ++i) {
static_cast<IndexedDBParent*>(idbParents[i])->Disconnect();
}
// If Close() fails with an error, we'll end up back in this function, but
// with aCloseWithError = true. It's important that we call
// CloseWithError() in this case; see bug 895204.
if (!aCloseWithError && !mCalledClose) {
// Close() can only be called once: It kicks off the destruction
// sequence.
mCalledClose = true;
Close();
}
if (aCloseWithError && !mCalledCloseWithError) {
MessageChannel* channel = GetIPCChannel();
if (channel) {
mCalledCloseWithError = true;
channel->CloseWithError();
}
}
// NB: must MarkAsDead() here so that this isn't accidentally
// returned from Get*() while in the midst of shutdown.
MarkAsDead();
// A ContentParent object might not get freed until after XPCOM shutdown has
// shut down the cycle collector. But by then it's too late to release any
// CC'ed objects, so we need to null them out here, while we still can. See
// bug 899761.
ShutDownMessageManager();
}
void
ContentParent::ShutDownMessageManager()
{
if (!mMessageManager) {
return;
}
mMessageManager->ReceiveMessage(
static_cast<nsIContentFrameMessageManager*>(mMessageManager.get()),
CHILD_PROCESS_SHUTDOWN_MESSAGE, false,
nullptr, nullptr, nullptr, nullptr);
mMessageManager->Disconnect();
mMessageManager = nullptr;
}
void
ContentParent::MarkAsDead()
{
if (!mAppManifestURL.IsEmpty()) {
if (sAppContentParents) {
sAppContentParents->Remove(mAppManifestURL);
if (!sAppContentParents->Count()) {
delete sAppContentParents;
sAppContentParents = nullptr;
}
}
} else if (sNonAppContentParents) {
sNonAppContentParents->RemoveElement(this);
if (!sNonAppContentParents->Length()) {
delete sNonAppContentParents;
sNonAppContentParents = nullptr;
}
}
if (sPrivateContent) {
sPrivateContent->RemoveElement(this);
if (!sPrivateContent->Length()) {
delete sPrivateContent;
sPrivateContent = nullptr;
}
}
mIsAlive = false;
sGrandchildProcessMap.erase(this);
for (auto iter = sGrandchildProcessMap.begin();
iter != sGrandchildProcessMap.end();
iter++) {
iter->second.erase(this);
}
}
void
ContentParent::OnChannelError()
{
nsRefPtr<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)
{
ProcessHandle handle;
if (!base::OpenPrivilegedProcessHandle(pid, &handle)) {
NS_WARNING("Can't open handle to child process.");
}
else {
// we need to close the existing handle before setting a new one.
base::CloseProcessHandle(OtherProcess());
SetOtherProcess(handle);
#if defined(ANDROID) || defined(LINUX)
// Check nice preference
int32_t nice = Preferences::GetInt("dom.ipc.content.nice", 0);
// Environment variable overrides preference
char* relativeNicenessStr = getenv("MOZ_CHILD_PROCESS_RELATIVE_NICENESS");
if (relativeNicenessStr) {
nice = atoi(relativeNicenessStr);
}
/* make the GUI thread have higher priority on single-cpu devices */
nsCOMPtr<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 what)
{
if (MsgDropped == what) {
// Messages sent after crashes etc. are not a big deal.
return;
}
// Other errors are big deals.
KillHard();
}
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;
}
} // anonymous 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();
}
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
{
DelayedDeleteContentParentTask(ContentParent* aObj) : mObj(aObj) { }
// No-op
NS_IMETHODIMP Run() { return NS_OK; }
nsRefPtr<ContentParent> mObj;
};
}
void
ContentParent::ActorDestroy(ActorDestroyReason why)
{
if (mForceKillTask) {
mForceKillTask->Cancel();
mForceKillTask = nullptr;
}
ShutDownMessageManager();
nsRefPtr<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]);
}
}
// Tell the memory reporter manager that this ContentParent is going away.
nsRefPtr<nsMemoryReporterManager> mgr =
nsMemoryReporterManager::GetOrCreate();
#ifdef MOZ_NUWA_PROCESS
bool isMemoryChild = !IsNuwaProcess();
#else
bool isMemoryChild = true;
#endif
if (mgr && isMemoryChild) {
mgr->DecrementNumChildProcesses();
}
// remove the global remote preferences observers
Preferences::RemoveObserver(this, "");
#ifdef MOZ_NUWA_PROCESS
// Remove the pref update requests.
if (IsNuwaProcess() && sNuwaPrefUpdates) {
delete sNuwaPrefUpdates;
sNuwaPrefUpdates = nullptr;
}
#endif
RecvRemoveGeolocationListener();
mConsoleService = nullptr;
MarkAsDead();
if (obs) {
nsRefPtr<nsHashPropertyBag> props = new nsHashPropertyBag();
props->SetPropertyAsUint64(NS_LITERAL_STRING("childID"), mChildID);
if (AbnormalShutdown == why) {
props->SetPropertyAsBool(NS_LITERAL_STRING("abnormal"), true);
#ifdef MOZ_CRASHREPORTER
// There's a window in which child processes can crash
// after IPC is established, but before a crash reporter
// is created.
if (ManagedPCrashReporterParent().Length() > 0) {
CrashReporterParent* crashReporter =
static_cast<CrashReporterParent*>(ManagedPCrashReporterParent()[0]);
// If we're an app process, always stomp the latest URI
// loaded in the child process with our manifest URL. We
// would rather associate the crashes with apps than
// random child windows loaded in them.
//
// XXX would be nice if we could get both ...
if (!mAppManifestURL.IsEmpty()) {
crashReporter->AnnotateCrashReport(NS_LITERAL_CSTRING("URL"),
NS_ConvertUTF16toUTF8(mAppManifestURL));
}
crashReporter->GenerateCrashReport(this, nullptr);
nsAutoString dumpID(crashReporter->ChildDumpID());
props->SetPropertyAsAString(NS_LITERAL_STRING("dumpID"), dumpID);
}
#endif
}
obs->NotifyObservers((nsIPropertyBag2*) props, "ipc:content-shutdown", nullptr);
}
mIdleListeners.Clear();
// If the child process was terminated due to a SIGKIL, ShutDownProcess
// might not have been called yet. We must call it to ensure that our
// channel is closed, etc.
ShutDownProcess(/* closeWithError */ true);
MessageLoop::current()->
PostTask(FROM_HERE,
NewRunnableFunction(DelayedDeleteSubprocess, mSubprocess));
mSubprocess = nullptr;
// IPDL rules require actors to live on past ActorDestroy, but it
// may be that the kungFuDeathGrip above is the last reference to
// |this|. If so, when we go out of scope here, we're deleted and
// all hell breaks loose.
//
// This runnable ensures that a reference to |this| lives on at
// least until after the current task finishes running.
NS_DispatchToCurrentThread(new DelayedDeleteContentParentTask(this));
// Destroy any processes created by this ContentParent
auto iter = sGrandchildProcessMap.find(this);
if (iter != sGrandchildProcessMap.end()) {
for(auto child = iter->second.begin();
child != iter->second.end();
child++) {
MessageLoop::current()->PostTask(
FROM_HERE,
NewRunnableMethod(*child, &ContentParent::ShutDownProcess,
/* closeWithError */ false));
}
}
}
void
ContentParent::NotifyTabDestroying(PBrowserParent* aTab)
{
// There can be more than one PBrowser for a given app process
// because of popup windows. PBrowsers can also destroy
// concurrently. When all the PBrowsers are destroying, kick off
// another task to ensure the child process *really* shuts down,
// even if the PBrowsers themselves never finish destroying.
int32_t numLiveTabs = ManagedPBrowserParent().Length();
++mNumDestroyingTabs;
if (mNumDestroyingTabs != numLiveTabs) {
return;
}
// We're dying now, so prevent this content process from being
// recycled during its shutdown procedure.
MarkAsDead();
MOZ_ASSERT(!mForceKillTask);
int32_t timeoutSecs =
Preferences::GetInt("dom.ipc.tabs.shutdownTimeoutSecs", 5);
if (timeoutSecs > 0) {
MessageLoop::current()->PostDelayedTask(
FROM_HERE,
mForceKillTask = NewRunnableMethod(this, &ContentParent::KillHard),
timeoutSecs * 1000);
}
}
void
ContentParent::NotifyTabDestroyed(PBrowserParent* aTab,
bool aNotifiedDestroying)
{
if (aNotifiedDestroying) {
--mNumDestroyingTabs;
}
// There can be more than one PBrowser for a given app process
// because of popup windows. When the last one closes, shut
// us down.
if (ManagedPBrowserParent().Length() == 1) {
MessageLoop::current()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ContentParent::ShutDownProcess,
/* force */ false));
}
}
jsipc::JavaScriptParent*
ContentParent::GetCPOWManager()
{
if (ManagedPJavaScriptParent().Length()) {
return static_cast<JavaScriptParent*>(ManagedPJavaScriptParent()[0]);
}
return nullptr;
}
TestShellParent*
ContentParent::CreateTestShell()
{
return static_cast<TestShellParent*>(SendPTestShellConstructor());
}
bool
ContentParent::DestroyTestShell(TestShellParent* aTestShell)
{
return PTestShellParent::Send__delete__(aTestShell);
}
TestShellParent*
ContentParent::GetTestShellSingleton()
{
if (!ManagedPTestShellParent().Length())
return nullptr;
return static_cast<TestShellParent*>(ManagedPTestShellParent()[0]);
}
void
ContentParent::InitializeMembers()
{
mSubprocess = nullptr;
mChildID = gContentChildID++;
mGeolocationWatchID = -1;
mForceKillTask = nullptr;
mNumDestroyingTabs = 0;
mIsAlive = true;
mSendPermissionUpdates = false;
mSendDataStoreInfos = false;
mCalledClose = false;
mCalledCloseWithError = false;
mCalledKillHard = false;
}
ContentParent::ContentParent(mozIApplication* aApp,
ContentParent* aOpener,
bool aIsForBrowser,
bool aIsForPreallocated,
ProcessPriority aInitialPriority /* = PROCESS_PRIORITY_FOREGROUND */,
bool aIsNuwaProcess /* = false */)
: nsIContentParent()
, mOpener(aOpener)
, mIsForBrowser(aIsForBrowser)
, mIsNuwaProcess(aIsNuwaProcess)
{
InitializeMembers(); // Perform common initialization.
// No more than one of !!aApp, aIsForBrowser, aIsForPreallocated should be
// true.
MOZ_ASSERT(!!aApp + aIsForBrowser + aIsForPreallocated <= 1);
// Only the preallocated process uses Nuwa.
MOZ_ASSERT_IF(aIsNuwaProcess, aIsForPreallocated);
// Insert ourselves into the global linked list of ContentParent objects.
if (!sContentParents) {
sContentParents = new LinkedList<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");
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
ChildPrivileges privs = aIsNuwaProcess
? base::PRIVILEGES_INHERIT
: base::PRIVILEGES_DEFAULT;
mSubprocess = new GeckoChildProcessHost(GeckoProcessType_Content, privs);
mSubprocess->SetSandboxEnabled(ShouldSandboxContentProcesses());
IToplevelProtocol::SetTransport(mSubprocess->GetChannel());
if (!aIsNuwaProcess) {
// Tell the memory reporter manager that this ContentParent exists.
nsRefPtr<nsMemoryReporterManager> mgr =
nsMemoryReporterManager::GetOrCreate();
if (mgr) {
mgr->IncrementNumChildProcesses();
}
}
std::vector<std::string> extraArgs;
if (aIsNuwaProcess) {
extraArgs.push_back("-nuwa");
}
mSubprocess->LaunchAndWaitForProcessHandle(extraArgs);
Open(mSubprocess->GetChannel(), mSubprocess->GetOwnedChildProcessHandle());
InitInternal(aInitialPriority,
true, /* Setup off-main thread compositing */
true /* Send registered chrome */);
}
#ifdef MOZ_NUWA_PROCESS
static const mozilla::ipc::FileDescriptor*
FindFdProtocolFdMapping(const nsTArray<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,
const nsTArray<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);
// Tell the memory reporter manager that this ContentParent exists.
nsRefPtr<nsMemoryReporterManager> mgr =
nsMemoryReporterManager::GetOrCreate();
if (mgr) {
mgr->IncrementNumChildProcesses();
}
mSubprocess->LaunchAndWaitForProcessHandle();
// Clone actors routed by aTemplate for this instance.
IToplevelProtocol::SetTransport(mSubprocess->GetChannel());
ProtocolCloneContext cloneContext;
cloneContext.SetContentParent(this);
CloneManagees(aTemplate, &cloneContext);
CloneOpenedToplevels(aTemplate, aFds, aPid, &cloneContext);
Open(mSubprocess->GetChannel(),
mSubprocess->GetChildProcessHandle());
// Set the subprocess's priority (bg if we're a preallocated process, fg
// otherwise). We do this first because we're likely /lowering/ its CPU and
// memory priority, which it has inherited from this process.
ProcessPriority priority;
if (IsPreallocated()) {
priority = PROCESS_PRIORITY_PREALLOC;
} else {
priority = PROCESS_PRIORITY_FOREGROUND;
}
InitInternal(priority,
false, /* Setup Off-main thread compositing */
false /* Send registered chrome */);
}
#endif // MOZ_NUWA_PROCESS
ContentParent::~ContentParent()
{
if (mForceKillTask) {
mForceKillTask->Cancel();
}
if (OtherProcess())
base::CloseProcessHandle(OtherProcess());
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
// We should be removed from all these lists in ActorDestroy.
MOZ_ASSERT(!sPrivateContent || !sPrivateContent->Contains(this));
if (mAppManifestURL.IsEmpty()) {
MOZ_ASSERT(!sNonAppContentParents ||
!sNonAppContentParents->Contains(this));
} else {
// In general, we expect sAppContentParents->Get(mAppManifestURL) to be
// nullptr. But it could be that we created another ContentParent for
// this app after we did this->ActorDestroy(), so the right check is
// that sAppContentParents->Get(mAppManifestURL) != this.
MOZ_ASSERT(!sAppContentParents ||
sAppContentParents->Get(mAppManifestURL) != this);
}
}
void
ContentParent::InitInternal(ProcessPriority aInitialPriority,
bool aSetupOffMainThreadCompositing,
bool aSendRegisteredChrome)
{
// Set the subprocess's priority. We do this early on because we're likely
// /lowering/ the process's CPU and memory priority, which it has inherited
// from this process.
//
// This call can cause us to send IPC messages to the child process, so it
// must come after the Open() call above.
ProcessPriorityManager::SetProcessPriority(this, aInitialPriority);
if (aSetupOffMainThreadCompositing) {
// NB: internally, this will send an IPC message to the child
// process to get it to create the CompositorChild. This
// message goes through the regular IPC queue for this
// channel, so delivery will happen-before any other messages
// we send. The CompositorChild must be created before any
// PBrowsers are created, because they rely on the Compositor
// already being around. (Creation is async, so can't happen
// on demand.)
bool useOffMainThreadCompositing = !!CompositorParent::CompositorLoop();
if (useOffMainThreadCompositing) {
DebugOnly<bool> opened = PCompositor::Open(this);
MOZ_ASSERT(opened);
#ifndef MOZ_WIDGET_GONK
if (gfxPrefs::AsyncVideoOOPEnabled()) {
opened = PImageBridge::Open(this);
MOZ_ASSERT(opened);
}
#else
opened = PImageBridge::Open(this);
MOZ_ASSERT(opened);
#endif
}
}
#ifdef MOZ_WIDGET_GONK
DebugOnly<bool> opened = PSharedBufferManager::Open(this);
MOZ_ASSERT(opened);
#endif
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);
// Sending all information to content process.
unused << SendAppInfo(version, buildID, name, UAName);
}
nsStyleSheetService *sheetService = nsStyleSheetService::GetInstance();
if (sheetService) {
// This looks like a lot of work, but in a normal browser session we just
// send two loads.
nsCOMArray<nsIStyleSheet>& agentSheets = *sheetService->AgentStyleSheets();
for (uint32_t i = 0; i < agentSheets.Length(); i++) {
URIParams uri;
SerializeURI(agentSheets[i]->GetSheetURI(), uri);
unused << SendLoadAndRegisterSheet(uri, nsIStyleSheetService::AGENT_SHEET);
}
nsCOMArray<nsIStyleSheet>& userSheets = *sheetService->UserStyleSheets();
for (uint32_t i = 0; i < userSheets.Length(); i++) {
URIParams uri;
SerializeURI(userSheets[i]->GetSheetURI(), uri);
unused << SendLoadAndRegisterSheet(uri, nsIStyleSheetService::USER_SHEET);
}
nsCOMArray<nsIStyleSheet>& authorSheets = *sheetService->AuthorStyleSheets();
for (uint32_t i = 0; i < authorSheets.Length(); i++) {
URIParams uri;
SerializeURI(authorSheets[i]->GetSheetURI(), uri);
unused << SendLoadAndRegisterSheet(uri, nsIStyleSheetService::AUTHOR_SHEET);
}
}
#ifdef MOZ_CONTENT_SANDBOX
bool shouldSandbox = true;
#ifdef MOZ_NUWA_PROCESS
if (IsNuwaProcess()) {
shouldSandbox = false;
}
#endif
if (shouldSandbox && !SendSetProcessSandbox()) {
KillHard();
}
#endif
}
bool
ContentParent::IsAlive()
{
return mIsAlive;
}
bool
ContentParent::IsForApp()
{
return !mAppManifestURL.IsEmpty();
}
#ifdef MOZ_NUWA_PROCESS
bool
ContentParent::IsNuwaProcess()
{
return mIsNuwaProcess;
}
#endif
int32_t
ContentParent::Pid()
{
if (!mSubprocess || !mSubprocess->GetChildProcessHandle()) {
return -1;
}
return base::GetProcId(mSubprocess->GetChildProcessHandle());
}
bool
ContentParent::RecvReadPrefsArray(InfallibleTArray<PrefSetting>* aPrefs)
{
Preferences::GetPreferences(aPrefs);
return true;
}
bool
ContentParent::RecvReadFontList(InfallibleTArray<FontListEntry>* retValue)
{
#ifdef ANDROID
gfxAndroidPlatform::GetPlatform()->GetFontList(retValue);
#endif
return true;
}
bool
ContentParent::RecvReadPermissions(InfallibleTArray<IPC::Permission>* aPermissions)
{
#ifdef MOZ_PERMISSIONS
nsCOMPtr<nsIPermissionManager> permissionManagerIface =
services::GetPermissionManager();
nsPermissionManager* permissionManager =
static_cast<nsPermissionManager*>(permissionManagerIface.get());
NS_ABORT_IF_FALSE(permissionManager,
"We have no permissionManager in the Chrome process !");
nsCOMPtr<nsISimpleEnumerator> enumerator;
DebugOnly<nsresult> rv = permissionManager->GetEnumerator(getter_AddRefs(enumerator));
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv), "Could not get enumerator!");
while(1) {
bool hasMore;
enumerator->HasMoreElements(&hasMore);
if (!hasMore)
break;
nsCOMPtr<nsISupports> supp;
enumerator->GetNext(getter_AddRefs(supp));
nsCOMPtr<nsIPermission> perm = do_QueryInterface(supp);
nsCString host;
perm->GetHost(host);
uint32_t appId;
perm->GetAppId(&appId);
bool isInBrowserElement;
perm->GetIsInBrowserElement(&isInBrowserElement);
nsCString type;
perm->GetType(type);
uint32_t capability;
perm->GetCapability(&capability);
uint32_t expireType;
perm->GetExpireType(&expireType);
int64_t expireTime;
perm->GetExpireTime(&expireTime);
aPermissions->AppendElement(IPC::Permission(host, appId,
isInBrowserElement, type,
capability, expireType,
expireTime));
}
// Ask for future changes
mSendPermissionUpdates = true;
#endif
return true;
}
bool
ContentParent::RecvSetClipboardText(const nsString& text,
const bool& isPrivateData,
const int32_t& whichClipboard)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
nsCOMPtr<nsISupportsString> dataWrapper =
do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, true);
rv = dataWrapper->SetData(text);
NS_ENSURE_SUCCESS(rv, true);
nsCOMPtr<nsITransferable> trans = do_CreateInstance("@mozilla.org/widget/transferable;1", &rv);
NS_ENSURE_SUCCESS(rv, true);
trans->Init(nullptr);
// If our data flavor has already been added, this will fail. But we don't care
trans->AddDataFlavor(kUnicodeMime);
trans->SetIsPrivateData(isPrivateData);
nsCOMPtr<nsISupports> nsisupportsDataWrapper =
do_QueryInterface(dataWrapper);
rv = trans->SetTransferData(kUnicodeMime, nsisupportsDataWrapper,
text.Length() * sizeof(char16_t));
NS_ENSURE_SUCCESS(rv, true);
clipboard->SetData(trans, nullptr, whichClipboard);
return true;
}
bool
ContentParent::RecvGetClipboardText(const int32_t& whichClipboard, nsString* text)
{
nsresult rv;
nsCOMPtr<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);
trans->AddDataFlavor(kUnicodeMime);
clipboard->GetData(trans, whichClipboard);
nsCOMPtr<nsISupports> tmp;
uint32_t len;
rv = trans->GetTransferData(kUnicodeMime, getter_AddRefs(tmp), &len);
if (NS_FAILED(rv))
return true;
nsCOMPtr<nsISupportsString> supportsString = do_QueryInterface(tmp);
// No support for non-text data
if (!supportsString)
return true;
supportsString->GetData(*text);
return true;
}
bool
ContentParent::RecvEmptyClipboard(const int32_t& whichClipboard)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
clipboard->EmptyClipboard(whichClipboard);
return true;
}
bool
ContentParent::RecvClipboardHasText(const int32_t& whichClipboard, bool* hasText)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
clipboard->HasDataMatchingFlavors(sClipboardTextFlavors, 1,
whichClipboard, hasText);
return true;
}
bool
ContentParent::RecvGetSystemColors(const uint32_t& colorsCount, InfallibleTArray<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::android::GeckoAppShell::GetShowPasswordSetting();
#endif
return true;
}
bool
ContentParent::RecvFirstIdle()
{
// When the ContentChild goes idle, it sends us a FirstIdle message
// which we use as a good time to prelaunch another process. If we
// prelaunch any sooner than this, then we'll be competing with the
// child process and slowing it down.
PreallocatedProcessManager::AllocateAfterDelay();
return true;
}
bool
ContentParent::RecvAudioChannelGetState(const AudioChannel& aChannel,
const bool& aElementHidden,
const bool& aElementWasHidden,
AudioChannelState* aState)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
*aState = AUDIO_CHANNEL_STATE_NORMAL;
if (service) {
*aState = service->GetStateInternal(aChannel, mChildID,
aElementHidden, aElementWasHidden);
}
return true;
}
bool
ContentParent::RecvAudioChannelRegisterType(const AudioChannel& aChannel,
const bool& aWithVideo)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
if (service) {
service->RegisterType(aChannel, mChildID, aWithVideo);
}
return true;
}
bool
ContentParent::RecvAudioChannelUnregisterType(const AudioChannel& aChannel,
const bool& aElementHidden,
const bool& aWithVideo)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
if (service) {
service->UnregisterType(aChannel, aElementHidden, mChildID, aWithVideo);
}
return true;
}
bool
ContentParent::RecvAudioChannelChangedNotification()
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
if (service) {
service->SendAudioChannelChangedNotification(ChildID());
}
return true;
}
bool
ContentParent::RecvAudioChannelChangeDefVolChannel(const int32_t& aChannel,
const bool& aHidden)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
if (service) {
service->SetDefaultVolumeControlChannelInternal(aChannel,
aHidden, mChildID);
}
return true;
}
bool
ContentParent::RecvDataStoreGetStores(
const nsString& aName,
const IPC::Principal& aPrincipal,
InfallibleTArray<DataStoreSetting>* aValue)
{
nsRefPtr<DataStoreService> service = DataStoreService::GetOrCreate();
if (NS_WARN_IF(!service)) {
return false;
}
nsresult rv = service->GetDataStoresFromIPC(aName, aPrincipal, aValue);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
mSendDataStoreInfos = true;
return true;
}
bool
ContentParent::RecvBroadcastVolume(const nsString& aVolumeName)
{
#ifdef MOZ_WIDGET_GONK
nsresult rv;
nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
if (vs) {
vs->BroadcastVolume(aVolumeName);
}
return true;
#else
NS_WARNING("ContentParent::RecvBroadcastVolume shouldn't be called when MOZ_WIDGET_GONK is not defined");
return false;
#endif
}
bool
ContentParent::RecvNuwaReady()
{
#ifdef MOZ_NUWA_PROCESS
if (!IsNuwaProcess()) {
NS_ERROR(
nsPrintfCString(
"Terminating child process %d for unauthorized IPC message: NuwaReady",
Pid()).get());
KillHard();
return false;
}
PreallocatedProcessManager::OnNuwaReady();
return true;
#else
NS_ERROR("ContentParent::RecvNuwaReady() not implemented!");
return false;
#endif
}
bool
ContentParent::RecvAddNewProcess(const uint32_t& aPid,
const InfallibleTArray<ProtocolFdMapping>& aFds)
{
#ifdef MOZ_NUWA_PROCESS
if (!IsNuwaProcess()) {
NS_ERROR(
nsPrintfCString(
"Terminating child process %d for unauthorized IPC message: "
"AddNewProcess(%d)", Pid(), aPid).get());
KillHard();
return false;
}
nsRefPtr<ContentParent> content;
content = new ContentParent(this,
MAGIC_PREALLOCATED_APP_MANIFEST_URL,
aPid,
aFds);
content->Init();
size_t numNuwaPrefUpdates = sNuwaPrefUpdates ?
sNuwaPrefUpdates->Length() : 0;
// Resend pref updates to the forked child.
for (int i = 0; i < numNuwaPrefUpdates; i++) {
content->SendPreferenceUpdate(sNuwaPrefUpdates->ElementAt(i));
}
PreallocatedProcessManager::PublishSpareProcess(content);
return true;
#else
NS_ERROR("ContentParent::RecvAddNewProcess() not implemented!");
return false;
#endif
}
// We want ContentParent to show up in CC logs for debugging purposes, but we
// don't actually cycle collect it.
NS_IMPL_CYCLE_COLLECTION_0(ContentParent)
NS_IMPL_CYCLE_COLLECTING_ADDREF(ContentParent)
NS_IMPL_CYCLE_COLLECTING_RELEASE(ContentParent)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ContentParent)
NS_INTERFACE_MAP_ENTRY(nsIContentParent)
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_INTERFACE_MAP_ENTRY(nsIDOMGeoPositionCallback)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIObserver)
NS_INTERFACE_MAP_END
NS_IMETHODIMP
ContentParent::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aData)
{
if (!strcmp(aTopic, "xpcom-shutdown") && mSubprocess) {
ShutDownProcess(/* closeWithError */ false);
NS_ASSERTION(!mSubprocess, "Close should have nulled mSubprocess");
}
if (!mIsAlive || !mSubprocess)
return NS_OK;
// listening for memory pressure event
if (!strcmp(aTopic, "memory-pressure") &&
!StringEndsWith(nsDependentString(aData),
NS_LITERAL_STRING("-no-forward"))) {
unused << SendFlushMemory(nsDependentString(aData));
}
// listening for remotePrefs...
else if (!strcmp(aTopic, "nsPref:changed")) {
// We know prefs are ASCII here.
NS_LossyConvertUTF16toASCII strData(aData);
PrefSetting pref(strData, null_t(), null_t());
Preferences::GetPreference(&pref);
#ifdef MOZ_NUWA_PROCESS
if (IsNuwaProcess() && PreallocatedProcessManager::IsNuwaReady()) {
// Don't send the pref update to the Nuwa process. Save the update
// to send to the forked child.
if (!sNuwaPrefUpdates) {
sNuwaPrefUpdates = new nsTArray<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;
}
// listening for alert notifications
else if (!strcmp(aTopic, "alertfinished") ||
!strcmp(aTopic, "alertclickcallback") ||
!strcmp(aTopic, "alertshow") ) {
if (!SendNotifyAlertsObserver(nsDependentCString(aTopic),
nsDependentString(aData)))
return NS_ERROR_NOT_AVAILABLE;
}
else if (!strcmp(aTopic, "child-memory-reporter-request")) {
bool isNuwa = false;
#ifdef MOZ_NUWA_PROCESS
isNuwa = IsNuwaProcess();
#endif
if (!isNuwa) {
unsigned generation;
int anonymize, minimize, identOffset = -1;
nsDependentString msg(aData);
NS_ConvertUTF16toUTF8 cmsg(msg);
if (sscanf(cmsg.get(),
"generation=%x anonymize=%d minimize=%d DMDident=%n",
&generation, &anonymize, &minimize, &identOffset) < 3
|| identOffset < 0) {
return NS_ERROR_INVALID_ARG;
}
// The pre-%n part of the string should be all ASCII, so the byte
// offset in identOffset should be correct as a char offset.
MOZ_ASSERT(cmsg[identOffset - 1] == '=');
FileDescriptor dmdFileDesc;
#ifdef MOZ_DMD
FILE *dmdFile;
nsAutoString dmdIdent(Substring(msg, identOffset));
nsresult rv = nsMemoryInfoDumper::OpenDMDFile(dmdIdent, Pid(), &dmdFile);
if (NS_WARN_IF(NS_FAILED(rv))) {
// Proceed with the memory report as if DMD were disabled.
dmdFile = nullptr;
}
if (dmdFile) {
dmdFileDesc = FILEToFileDescriptor(dmdFile);
fclose(dmdFile);
}
#endif
unused << SendPMemoryReportRequestConstructor(
generation, anonymize, minimize, dmdFileDesc);
}
}
else if (!strcmp(aTopic, "child-gc-request")){
unused << SendGarbageCollect();
}
else if (!strcmp(aTopic, "child-cc-request")){
unused << SendCycleCollect();
}
else if (!strcmp(aTopic, "child-mmu-request")){
unused << SendMinimizeMemoryUsage();
}
else if (!strcmp(aTopic, "last-pb-context-exited")) {
unused << SendLastPrivateDocShellDestroyed();
}
else if (!strcmp(aTopic, "file-watcher-update")) {
nsCString creason;
CopyUTF16toUTF8(aData, creason);
DeviceStorageFile* file = static_cast<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;
vol->GetName(volName);
vol->GetMountPoint(mountPoint);
vol->GetState(&state);
vol->GetMountGeneration(&mountGeneration);
vol->GetIsMediaPresent(&isMediaPresent);
vol->GetIsSharing(&isSharing);
vol->GetIsFormatting(&isFormatting);
vol->GetIsFake(&isFake);
unused << SendFileSystemUpdate(volName, mountPoint, state,
mountGeneration, isMediaPresent,
isSharing, isFormatting, isFake);
} else if (!strcmp(aTopic, "phone-state-changed")) {
nsString state(aData);
unused << SendNotifyPhoneStateChange(state);
}
#endif
#ifdef ACCESSIBILITY
// Make sure accessibility is running in content process when accessibility
// gets initiated in chrome process.
else if (aData && (*aData == '1') &&
!strcmp(aTopic, "a11y-init-or-shutdown")) {
unused << SendActivateA11y();
}
#endif
return NS_OK;
}
PCompositorParent*
ContentParent::AllocPCompositorParent(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return CompositorParent::Create(aTransport, aOtherProcess);
}
PImageBridgeParent*
ContentParent::AllocPImageBridgeParent(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return ImageBridgeParent::Create(aTransport, aOtherProcess);
}
PBackgroundParent*
ContentParent::AllocPBackgroundParent(Transport* aTransport,
ProcessId aOtherProcess)
{
return BackgroundParent::Alloc(this, aTransport, aOtherProcess);
}
PSharedBufferManagerParent*
ContentParent::AllocPSharedBufferManagerParent(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return SharedBufferManagerParent::Create(aTransport, aOtherProcess);
}
bool
ContentParent::RecvGetProcessAttributes(uint64_t* aId,
bool* aIsForApp, bool* aIsForBrowser)
{
*aId = mChildID;
*aIsForApp = IsForApp();
*aIsForBrowser = mIsForBrowser;
return true;
}
bool
ContentParent::RecvGetXPCOMProcessAttributes(bool* aIsOffline)
{
nsCOMPtr<nsIIOService> io(do_GetIOService());
NS_ASSERTION(io, "No IO service?");
DebugOnly<nsresult> rv = io->GetOffline(aIsOffline);
NS_ASSERTION(NS_SUCCEEDED(rv), "Failed getting offline?");
return true;
}
mozilla::jsipc::PJavaScriptParent *
ContentParent::AllocPJavaScriptParent()
{
MOZ_ASSERT(!ManagedPJavaScriptParent().Length());
return nsIContentParent::AllocPJavaScriptParent();
}
bool
ContentParent::DeallocPJavaScriptParent(PJavaScriptParent *parent)
{
return nsIContentParent::DeallocPJavaScriptParent(parent);
}
PBrowserParent*
ContentParent::AllocPBrowserParent(const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const uint64_t& aId,
const bool& aIsForApp,
const bool& aIsForBrowser)
{
return nsIContentParent::AllocPBrowserParent(aContext,
aChromeFlags,
aId,
aIsForApp,
aIsForBrowser);
}
bool
ContentParent::DeallocPBrowserParent(PBrowserParent* frame)
{
return nsIContentParent::DeallocPBrowserParent(frame);
}
PDeviceStorageRequestParent*
ContentParent::AllocPDeviceStorageRequestParent(const DeviceStorageParams& aParams)
{
nsRefPtr<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)
{
nsRefPtr<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)
{
delete aActor;
return true;
}
void
ContentParent::KillHard()
{
// On Windows, calling KillHard multiple times causes problems - the
// process handle becomes invalid on the first call, causing a second call
// to crash our process - more details in bug 890840.
if (mCalledKillHard) {
return;
}
mCalledKillHard = true;
mForceKillTask = nullptr;
// This ensures the process is eventually killed, but doesn't
// immediately KILLITWITHFIRE because we want to get a minidump if
// possible. After a timeout though, the process is forceably
// killed.
if (!KillProcess(OtherProcess(), 1, false)) {
NS_WARNING("failed to kill subprocess!");
}
mSubprocess->SetAlreadyDead();
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(&ProcessWatcher::EnsureProcessTerminated,
OtherProcess(), /*force=*/true));
//We do clean-up here
MessageLoop::current()->PostDelayedTask(
FROM_HERE,
NewRunnableMethod(this, &ContentParent::ShutDownProcess,
/* closeWithError */ true),
3000);
// We've now closed the OtherProcess() handle, so must set it to null to
// prevent our dtor closing it twice.
SetOtherProcess(0);
}
bool
ContentParent::IsPreallocated()
{
return mAppManifestURL == MAGIC_PREALLOCATED_APP_MANIFEST_URL;
}
void
ContentParent::FriendlyName(nsAString& aName, bool aAnonymize)
{
aName.Truncate();
#ifdef MOZ_NUWA_PROCESS
if (IsNuwaProcess()) {
aName.AssignLiteral("(Nuwa)");
} else
#endif
if (IsPreallocated()) {
aName.AssignLiteral("(Preallocated)");
} else if (mIsForBrowser) {
aName.AssignLiteral("Browser");
} else if (aAnonymize) {
aName.AssignLiteral("<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;
}
PIndexedDBParent*
ContentParent::AllocPIndexedDBParent()
{
return new IndexedDBParent(this);
}
bool
ContentParent::DeallocPIndexedDBParent(PIndexedDBParent* aActor)
{
delete aActor;
return true;
}
bool
ContentParent::RecvPIndexedDBConstructor(PIndexedDBParent* aActor)
{
nsRefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::GetOrCreate();
NS_ENSURE_TRUE(mgr, false);
if (!IndexedDatabaseManager::IsMainProcess()) {
NS_RUNTIMEABORT("Not supported yet!");
}
nsRefPtr<IDBFactory> factory;
nsresult rv = IDBFactory::Create(this, getter_AddRefs(factory));
NS_ENSURE_SUCCESS(rv, false);
NS_ASSERTION(factory, "This should never be null!");
IndexedDBParent* actor = static_cast<IndexedDBParent*>(aActor);
actor->mFactory = factory;
actor->mASCIIOrigin = factory->GetASCIIOrigin();
return true;
}
PMemoryReportRequestParent*
ContentParent::AllocPMemoryReportRequestParent(const uint32_t& aGeneration,
const bool &aAnonymize,
const bool &aMinimizeMemoryUsage,
const FileDescriptor &aDMDFile)
{
MemoryReportRequestParent* parent = new MemoryReportRequestParent();
return parent;
}
bool
ContentParent::DeallocPMemoryReportRequestParent(PMemoryReportRequestParent* actor)
{
delete actor;
return true;
}
PCycleCollectWithLogsParent*
ContentParent::AllocPCycleCollectWithLogsParent(const bool& aDumpAllTraces,
const FileDescriptor& aGCLog,
const FileDescriptor& aCCLog)
{
MOZ_CRASH("Don't call this; use ContentParent::CycleCollectWithLogs");
}
bool
ContentParent::DeallocPCycleCollectWithLogsParent(PCycleCollectWithLogsParent* aActor)
{
delete aActor;
return true;
}
bool
ContentParent::CycleCollectWithLogs(bool aDumpAllTraces,
nsICycleCollectorLogSink* aSink,
nsIDumpGCAndCCLogsCallback* aCallback)
{
return CycleCollectWithLogsParent::AllocAndSendConstructor(this,
aDumpAllTraces,
aSink,
aCallback);
}
PTestShellParent*
ContentParent::AllocPTestShellParent()
{
return new TestShellParent();
}
bool
ContentParent::DeallocPTestShellParent(PTestShellParent* shell)
{
delete shell;
return true;
}
PNeckoParent*
ContentParent::AllocPNeckoParent()
{
return new NeckoParent();
}
bool
ContentParent::DeallocPNeckoParent(PNeckoParent* necko)
{
delete necko;
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;
}
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;
}
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
nsRefPtr<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
}
asmjscache::PAsmJSCacheEntryParent*
ContentParent::AllocPAsmJSCacheEntryParent(
const asmjscache::OpenMode& aOpenMode,
const asmjscache::WriteParams& aWriteParams,
const IPC::Principal& aPrincipal)
{
return asmjscache::AllocEntryParent(aOpenMode, aWriteParams, aPrincipal);
}
bool
ContentParent::DeallocPAsmJSCacheEntryParent(PAsmJSCacheEntryParent* aActor)
{
asmjscache::DeallocEntryParent(aActor);
return true;
}
PSpeechSynthesisParent*
ContentParent::AllocPSpeechSynthesisParent()
{
#ifdef MOZ_WEBSPEECH
return new mozilla::dom::SpeechSynthesisParent();
#else
return nullptr;
#endif
}
bool
ContentParent::DeallocPSpeechSynthesisParent(PSpeechSynthesisParent* aActor)
{
#ifdef MOZ_WEBSPEECH
delete aActor;
return true;
#else
return false;
#endif
}
bool
ContentParent::RecvPSpeechSynthesisConstructor(PSpeechSynthesisParent* aActor)
{
#ifdef MOZ_WEBSPEECH
return true;
#else
return false;
#endif
}
bool
ContentParent::RecvSpeakerManagerGetSpeakerStatus(bool* aValue)
{
#ifdef MOZ_WIDGET_GONK
*aValue = false;
nsRefPtr<SpeakerManagerService> service =
SpeakerManagerService::GetSpeakerManagerService();
if (service) {
*aValue = service->GetSpeakerStatus();
}
return true;
#endif
return false;
}
bool
ContentParent::RecvSpeakerManagerForceSpeaker(const bool& aEnable)
{
#ifdef MOZ_WIDGET_GONK
nsRefPtr<SpeakerManagerService> service =
SpeakerManagerService::GetSpeakerManagerService();
if (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);
NS_Free(buf);
return true;
}
bool
ContentParent::RecvGetSystemMemory(const uint64_t& aGetterId)
{
uint32_t memoryTotal = 0;
#if defined(XP_LINUX)
memoryTotal = mozilla::hal::GetTotalSystemMemoryLevel();
#endif
unused << SendSystemMemoryAvailable(aGetterId, memoryTotal);
return true;
}
bool
ContentParent::RecvLoadURIExternal(const URIParams& uri)
{
nsCOMPtr<nsIExternalProtocolService> extProtService(do_GetService(NS_EXTERNALPROTOCOLSERVICE_CONTRACTID));
if (!extProtService) {
return true;
}
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
extProtService->LoadURI(ourURI, nullptr);
return true;
}
bool
ContentParent::RecvShowAlertNotification(const nsString& aImageUrl, const nsString& aTitle,
const nsString& aText, const bool& aTextClickable,
const nsString& aCookie, const nsString& aName,
const nsString& aBidi, const nsString& aLang,
const IPC::Principal& aPrincipal)
{
#ifdef MOZ_CHILD_PERMISSIONS
uint32_t permission = mozilla::CheckPermission(this, aPrincipal,
"desktop-notification");
if (permission != nsIPermissionManager::ALLOW_ACTION) {
return true;
}
#endif /* MOZ_CHILD_PERMISSIONS */
nsCOMPtr<nsIAlertsService> sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID));
if (sysAlerts) {
sysAlerts->ShowAlertNotification(aImageUrl, aTitle, aText, aTextClickable,
aCookie, this, aName, aBidi, aLang, aPrincipal);
}
return true;
}
bool
ContentParent::RecvCloseAlert(const nsString& aName,
const IPC::Principal& aPrincipal)
{
#ifdef MOZ_CHILD_PERMISSIONS
uint32_t permission = mozilla::CheckPermission(this, aPrincipal,
"desktop-notification");
if (permission != nsIPermissionManager::ALLOW_ACTION) {
return true;
}
#endif
nsCOMPtr<nsIAlertsService> sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID));
if (sysAlerts) {
sysAlerts->CloseAlert(aName, aPrincipal);
}
return true;
}
bool
ContentParent::RecvSyncMessage(const nsString& aMsg,
const ClonedMessageData& aData,
const InfallibleTArray<CpowEntry>& aCpows,
const IPC::Principal& aPrincipal,
InfallibleTArray<nsString>* aRetvals)
{
return nsIContentParent::RecvSyncMessage(aMsg, aData, aCpows, aPrincipal,
aRetvals);
}
bool
ContentParent::AnswerRpcMessage(const nsString& aMsg,
const ClonedMessageData& aData,
const InfallibleTArray<CpowEntry>& aCpows,
const IPC::Principal& aPrincipal,
InfallibleTArray<nsString>* aRetvals)
{
return nsIContentParent::AnswerRpcMessage(aMsg, aData, aCpows, aPrincipal,
aRetvals);
}
bool
ContentParent::RecvAsyncMessage(const nsString& aMsg,
const ClonedMessageData& aData,
const InfallibleTArray<CpowEntry>& aCpows,
const IPC::Principal& aPrincipal)
{
return nsIContentParent::RecvAsyncMessage(aMsg, aData, aCpows, aPrincipal);
}
bool
ContentParent::RecvFilePathUpdateNotify(const nsString& aType,
const nsString& aStorageName,
const nsString& aFilePath,
const nsCString& aReason)
{
nsRefPtr<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, 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, nullptr, options, &retval);
return retval;
}
bool
ContentParent::RecvAddGeolocationListener(const IPC::Principal& aPrincipal,
const bool& aHighAccuracy)
{
#ifdef MOZ_CHILD_PERMISSIONS
if (!ContentParent::IgnoreIPCPrincipal()) {
uint32_t permission = mozilla::CheckPermission(this, aPrincipal,
"geolocation");
if (permission != nsIPermissionManager::ALLOW_ACTION) {
return true;
}
}
#endif /* MOZ_CHILD_PERMISSIONS */
// To ensure no geolocation updates are skipped, we always force the
// creation of a new listener.
RecvRemoveGeolocationListener();
mGeolocationWatchID = AddGeolocationListener(this, aHighAccuracy);
return true;
}
bool
ContentParent::RecvRemoveGeolocationListener()
{
if (mGeolocationWatchID != -1) {
nsCOMPtr<nsIDOMGeoGeolocation> geo = do_GetService("@mozilla.org/geolocation;1");
if (!geo) {
return true;
}
geo->ClearWatch(mGeolocationWatchID);
mGeolocationWatchID = -1;
}
return true;
}
bool
ContentParent::RecvSetGeolocationHigherAccuracy(const bool& aEnable)
{
// This should never be called without a listener already present,
// so this check allows us to forgo securing privileges.
if (mGeolocationWatchID != -1) {
RecvRemoveGeolocationListener();
mGeolocationWatchID = AddGeolocationListener(this, aEnable);
}
return true;
}
NS_IMETHODIMP
ContentParent::HandleEvent(nsIDOMGeoPosition* postion)
{
unused << SendGeolocationUpdate(GeoPosition(postion));
return NS_OK;
}
nsConsoleService *
ContentParent::GetConsoleService()
{
if (mConsoleService) {
return mConsoleService.get();
}
// Get the ConsoleService by CID rather than ContractID, so that we
// can cast the returned pointer to an nsConsoleService (rather than
// just an nsIConsoleService). This allows us to call the non-idl function
// nsConsoleService::LogMessageWithMode.
NS_DEFINE_CID(consoleServiceCID, NS_CONSOLESERVICE_CID);
nsCOMPtr<nsConsoleService> consoleService(do_GetService(consoleServiceCID));
mConsoleService = consoleService;
return mConsoleService.get();
}
bool
ContentParent::RecvConsoleMessage(const nsString& aMessage)
{
nsRefPtr<nsConsoleService> consoleService = GetConsoleService();
if (!consoleService) {
return true;
}
nsRefPtr<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)
{
nsRefPtr<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);
if (!sPrivateContent->Length()) {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->NotifyObservers(nullptr, "last-pb-context-exited", nullptr);
delete sPrivateContent;
sPrivateContent = nullptr;
}
}
return true;
}
bool
ContentParent::DoSendAsyncMessage(JSContext* aCx,
const nsAString& aMessage,
const mozilla::dom::StructuredCloneData& aData,
JS::Handle<JSObject *> aCpows,
nsIPrincipal* aPrincipal)
{
ClonedMessageData data;
if (!BuildClonedMessageDataForParent(this, aData, data)) {
return false;
}
InfallibleTArray<CpowEntry> cpows;
if (aCpows && !GetCPOWManager()->Wrap(aCx, aCpows, &cpows)) {
return false;
}
return SendAsyncMessage(nsString(aMessage), data, cpows, aPrincipal);
}
bool
ContentParent::CheckPermission(const nsAString& aPermission)
{
return AssertAppProcessPermission(this, NS_ConvertUTF16toUTF8(aPermission).get());
}
bool
ContentParent::CheckManifestURL(const nsAString& aManifestURL)
{
return AssertAppProcessManifestURL(this, NS_ConvertUTF16toUTF8(aManifestURL).get());
}
bool
ContentParent::CheckAppHasPermission(const nsAString& aPermission)
{
return AssertAppHasPermission(this, NS_ConvertUTF16toUTF8(aPermission).get());
}
bool
ContentParent::CheckAppHasStatus(unsigned short aStatus)
{
return AssertAppHasStatus(this, aStatus);
}
PBlobParent*
ContentParent::SendPBlobConstructor(PBlobParent* aActor,
const BlobConstructorParams& aParams)
{
return PContentParent::SendPBlobConstructor(aActor, aParams);
}
bool
ContentParent::RecvSystemMessageHandled()
{
SystemMessageHandledListener::OnSystemMessageHandled();
return true;
}
PBrowserParent*
ContentParent::SendPBrowserConstructor(PBrowserParent* aActor,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const uint64_t& aId,
const bool& aIsForApp,
const bool& aIsForBrowser)
{
return PContentParent::SendPBrowserConstructor(aActor,
aContext,
aChromeFlags,
aId,
aIsForApp,
aIsForBrowser);
}
bool
ContentParent::RecvCreateFakeVolume(const nsString& fsName, const nsString& mountPoint)
{
#ifdef MOZ_WIDGET_GONK
nsresult rv;
nsCOMPtr<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::RecvKeywordToURI(const nsCString& aKeyword, OptionalInputStreamParams* aPostData,
OptionalURIParams* aURI)
{
nsCOMPtr<nsIURIFixup> fixup = do_GetService(NS_URIFIXUP_CONTRACTID);
if (!fixup) {
return true;
}
nsCOMPtr<nsIInputStream> postData;
nsCOMPtr<nsIURI> uri;
if (NS_FAILED(fixup->KeywordToURI(aKeyword, getter_AddRefs(postData),
getter_AddRefs(uri)))) {
return true;
}
nsTArray<mozilla::ipc::FileDescriptor> fds;
SerializeInputStream(postData, *aPostData, fds);
MOZ_ASSERT(fds.IsEmpty());
SerializeURI(uri, *aURI);
return true;
}
bool
ContentParent::ShouldContinueFromReplyTimeout()
{
// The only time ContentParent sends blocking messages is for CPOWs, so
// timeouts should only ever occur in electrolysis-enabled sessions.
MOZ_ASSERT(BrowserTabsRemote());
return false;
}
bool
ContentParent::ShouldSandboxContentProcesses()
{
#ifdef MOZ_CONTENT_SANDBOX
return !PR_GetEnv("MOZ_DISABLE_CONTENT_SANDBOX");
#else
return true;
#endif
}
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
nsRefPtr<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 = do_GetService("@mozilla.org/gfx/info;1");
if (!gfxInfo) {
*aSuccess = false;
return true;
}
*aSuccess = NS_SUCCEEDED(gfxInfo->GetFeatureStatus(aFeature, aStatus));
return true;
}
bool
ContentParent::RecvAddIdleObserver(const uint64_t& aObserver, const uint32_t& aIdleTimeInS)
{
nsresult rv;
nsCOMPtr<nsIIdleService> idleService =
do_GetService("@mozilla.org/widget/idleservice;1", &rv);
NS_ENSURE_SUCCESS(rv, false);
nsRefPtr<ParentIdleListener> listener = new ParentIdleListener(this, aObserver);
mIdleListeners.Put(aObserver, listener);
idleService->AddIdleObserver(listener, aIdleTimeInS);
return true;
}
bool
ContentParent::RecvRemoveIdleObserver(const uint64_t& aObserver, const uint32_t& aIdleTimeInS)
{
nsresult rv;
nsCOMPtr<nsIIdleService> idleService =
do_GetService("@mozilla.org/widget/idleservice;1", &rv);
NS_ENSURE_SUCCESS(rv, false);
nsRefPtr<ParentIdleListener> listener;
bool found = mIdleListeners.Get(aObserver, &listener);
if (found) {
mIdleListeners.Remove(aObserver);
idleService->RemoveIdleObserver(listener, aIdleTimeInS);
}
return true;
}
bool
ContentParent::RecvBackUpXResources(const FileDescriptor& aXSocketFd)
{
#ifndef MOZ_X11
NS_RUNTIMEABORT("This message only makes sense on X11 platforms");
#else
NS_ABORT_IF_FALSE(0 > mChildXSocketFdDup.get(),
"Already backed up X resources??");
mChildXSocketFdDup.forget();
if (aXSocketFd.IsValid()) {
mChildXSocketFdDup.reset(aXSocketFd.PlatformHandle());
}
#endif
return true;
}
bool
ContentParent::RecvOpenAnonymousTemporaryFile(FileDescriptor *aFD)
{
PRFileDesc *prfd;
nsresult rv = NS_OpenAnonymousTemporaryFile(&prfd);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
*aFD = FileDescriptor::PlatformHandleType(PR_FileDesc2NativeHandle(prfd));
// The FileDescriptor object owns a duplicate of the file handle; we
// must close the original (and clean up the NSPR descriptor).
PR_Close(prfd);
return true;
}
PFileDescriptorSetParent*
ContentParent::AllocPFileDescriptorSetParent(const FileDescriptor& aFD)
{
return new FileDescriptorSetParent(aFD);
}
bool
ContentParent::DeallocPFileDescriptorSetParent(PFileDescriptorSetParent* aActor)
{
delete static_cast<FileDescriptorSetParent*>(aActor);
return true;
}
bool
ContentParent::IgnoreIPCPrincipal()
{
static bool sDidAddVarCache = false;
static bool sIgnoreIPCPrincipal = false;
if (!sDidAddVarCache) {
sDidAddVarCache = true;
Preferences::AddBoolVarCache(&sIgnoreIPCPrincipal,
"dom.testing.ignore_ipc_principal", false);
}
return sIgnoreIPCPrincipal;
}
} // namespace dom
} // namespace mozilla
NS_IMPL_ISUPPORTS(ParentIdleListener, nsIObserver)
NS_IMETHODIMP
ParentIdleListener::Observe(nsISupports*, const char* aTopic, const char16_t* aData) {
mozilla::unused << mParent->SendNotifyIdleObserver(mObserver,
nsDependentCString(aTopic),
nsDependentString(aData));
return NS_OK;
}
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