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gecko/dom/ipc/ContentParent.cpp
Jed Davis c0003b43bf Bug 1077057 - Expose Linux sandboxing information to JS via nsSystemInfo. r=kang r=froydnj 
This adds "hasSeccompBPF" for seccomp-bpf support; other "has" keys
will be added in the future (e.g., user namespaces).

This also adds "canSandboxContent" and "canSandboxMedia", which are
absent if the corresponding type of sandboxing isn't enabled at build
type (or is disabled with environment variables), and otherwise present
as a boolean indicating whether that type of sandboxing is supported.
Currently this is always the same as hasSeccompBPF, but that could change
in the future.

Some changes have been made to the "mozilla/Sandbox.h" interface to
support this; the idea is that the MOZ_DISABLE_*_SANDBOX environment
variables should be equivalent to disabling MOZ_*_SANDBOX at build time.
2014-11-06 13:11:00 +01:00

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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 "BlobParent.h"
#include "CrashReporterParent.h"
#include "IHistory.h"
#include "mozIApplication.h"
#ifdef ACCESSIBILITY
#include "mozilla/a11y/DocAccessibleParent.h"
#include "nsAccessibilityService.h"
#endif
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/dom/DataStoreService.h"
#include "mozilla/dom/DOMStorageIPC.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/ExternalHelperAppParent.h"
#include "mozilla/dom/FileSystemRequestParent.h"
#include "mozilla/dom/GeolocationBinding.h"
#include "mozilla/dom/PContentBridgeParent.h"
#include "mozilla/dom/PCycleCollectWithLogsParent.h"
#include "mozilla/dom/PFMRadioParent.h"
#include "mozilla/dom/PMemoryReportRequestParent.h"
#include "mozilla/dom/asmjscache/AsmJSCache.h"
#include "mozilla/dom/bluetooth/PBluetoothParent.h"
#include "mozilla/dom/cellbroadcast/CellBroadcastParent.h"
#include "mozilla/dom/devicestorage/DeviceStorageRequestParent.h"
#include "mozilla/dom/mobileconnection/MobileConnectionParent.h"
#include "mozilla/dom/mobilemessage/SmsParent.h"
#include "mozilla/dom/power/PowerManagerService.h"
#include "mozilla/dom/quota/QuotaManager.h"
#include "mozilla/dom/telephony/TelephonyParent.h"
#include "mozilla/dom/time/DateCacheCleaner.h"
#include "mozilla/dom/voicemail/VoicemailParent.h"
#include "mozilla/embedding/printingui/PrintingParent.h"
#include "mozilla/hal_sandbox/PHalParent.h"
#include "mozilla/ipc/BackgroundChild.h"
#include "mozilla/ipc/BackgroundParent.h"
#include "mozilla/ipc/FileDescriptorSetParent.h"
#include "mozilla/ipc/FileDescriptorUtils.h"
#include "mozilla/ipc/PFileDescriptorSetParent.h"
#include "mozilla/ipc/TestShellParent.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "mozilla/layers/CompositorParent.h"
#include "mozilla/layers/ImageBridgeParent.h"
#include "mozilla/layers/SharedBufferManagerParent.h"
#include "mozilla/net/NeckoParent.h"
#include "mozilla/plugins/PluginBridge.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 "nsFrameMessageManager.h"
#include "nsGeolocationSettings.h"
#include "nsHashPropertyBag.h"
#include "nsIAlertsService.h"
#include "nsIAppsService.h"
#include "nsIClipboard.h"
#include "nsICycleCollectorListener.h"
#include "nsIDocument.h"
#include "nsIDOMGeoGeolocation.h"
#include "nsIDOMGeoPositionError.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 "nsIScriptError.h"
#include "nsISiteSecurityService.h"
#include "nsISpellChecker.h"
#include "nsIStyleSheet.h"
#include "nsISupportsPrimitives.h"
#include "nsIURIFixup.h"
#include "nsIWindowWatcher.h"
#include "nsIXULRuntime.h"
#include "nsMemoryInfoDumper.h"
#include "nsMemoryReporterManager.h"
#include "nsServiceManagerUtils.h"
#include "nsStyleSheetService.h"
#include "nsThreadUtils.h"
#include "nsToolkitCompsCID.h"
#include "nsWidgetsCID.h"
#include "PreallocatedProcessManager.h"
#include "ProcessPriorityManager.h"
#include "SandboxHal.h"
#include "ScreenManagerParent.h"
#include "StructuredCloneUtils.h"
#include "TabParent.h"
#include "URIUtils.h"
#include "nsIWebBrowserChrome.h"
#include "nsIDocShell.h"
#include "mozilla/net/NeckoMessageUtils.h"
#include "gfxPrefs.h"
#include "prio.h"
#include "private/pprio.h"
#include "ContentProcessManager.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 "nsVolumeService.h"
#include "nsIVolumeService.h"
#include "SpeakerManagerService.h"
using namespace mozilla::system;
#endif
#ifdef MOZ_B2G_BT
#include "BluetoothParent.h"
#include "BluetoothService.h"
#endif
#include "JavaScriptParent.h"
#include "mozilla/RemoteSpellCheckEngineParent.h"
#ifdef MOZ_B2G_FM
#include "mozilla/dom/FMRadioParent.h"
#endif
#include "Crypto.h"
#ifdef MOZ_WEBSPEECH
#include "mozilla/dom/SpeechSynthesisParent.h"
#endif
#ifdef ENABLE_TESTS
#include "BackgroundChildImpl.h"
#include "mozilla/ipc/PBackgroundChild.h"
#include "nsIIPCBackgroundChildCreateCallback.h"
#endif
#if defined(MOZ_CONTENT_SANDBOX) && defined(XP_LINUX)
#include "mozilla/Sandbox.h"
#endif
#ifdef MOZ_TOOLKIT_SEARCH
#include "nsIBrowserSearchService.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::cellbroadcast;
using namespace mozilla::dom::devicestorage;
using namespace mozilla::dom::indexedDB;
using namespace mozilla::dom::power;
using namespace mozilla::dom::mobileconnection;
using namespace mozilla::dom::mobilemessage;
using namespace mozilla::dom::telephony;
using namespace mozilla::dom::voicemail;
using namespace mozilla::embedding;
using namespace mozilla::hal;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::net;
using namespace mozilla::jsipc;
using namespace mozilla::widget;
#ifdef ENABLE_TESTS
class BackgroundTester MOZ_FINAL : public nsIIPCBackgroundChildCreateCallback,
public nsIObserver
{
static uint32_t sCallbackCount;
private:
~BackgroundTester()
{ }
virtual void
ActorCreated(PBackgroundChild* aActor) MOZ_OVERRIDE
{
MOZ_RELEASE_ASSERT(aActor,
"Failed to create a PBackgroundChild actor!");
NS_NAMED_LITERAL_CSTRING(testStr, "0123456789");
PBackgroundTestChild* testActor =
aActor->SendPBackgroundTestConstructor(testStr);
MOZ_RELEASE_ASSERT(testActor);
if (!sCallbackCount) {
PBackgroundChild* existingBackgroundChild =
BackgroundChild::GetForCurrentThread();
MOZ_RELEASE_ASSERT(existingBackgroundChild);
MOZ_RELEASE_ASSERT(existingBackgroundChild == aActor);
bool ok =
existingBackgroundChild->
SendPBackgroundTestConstructor(testStr);
MOZ_RELEASE_ASSERT(ok);
// Callback 3.
ok = BackgroundChild::GetOrCreateForCurrentThread(this);
MOZ_RELEASE_ASSERT(ok);
}
sCallbackCount++;
}
virtual void
ActorFailed() MOZ_OVERRIDE
{
MOZ_CRASH("Failed to create a PBackgroundChild actor!");
}
NS_IMETHOD
Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData)
MOZ_OVERRIDE
{
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
MOZ_RELEASE_ASSERT(observerService);
nsresult rv = observerService->RemoveObserver(this, aTopic);
MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
if (!strcmp(aTopic, "profile-after-change")) {
if (mozilla::Preferences::GetBool("pbackground.testing", false)) {
rv = observerService->AddObserver(this, "xpcom-shutdown",
false);
MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
// Callback 1.
bool ok = BackgroundChild::GetOrCreateForCurrentThread(this);
MOZ_RELEASE_ASSERT(ok);
BackgroundChildImpl::ThreadLocal* threadLocal =
BackgroundChildImpl::GetThreadLocalForCurrentThread();
MOZ_RELEASE_ASSERT(threadLocal);
// Callback 2.
ok = BackgroundChild::GetOrCreateForCurrentThread(this);
MOZ_RELEASE_ASSERT(ok);
}
return NS_OK;
}
if (!strcmp(aTopic, "xpcom-shutdown")) {
MOZ_RELEASE_ASSERT(sCallbackCount == 3);
return NS_OK;
}
MOZ_CRASH("Unknown observer topic!");
}
public:
NS_DECL_ISUPPORTS
};
uint32_t BackgroundTester::sCallbackCount = 0;
NS_IMPL_ISUPPORTS(BackgroundTester, nsIIPCBackgroundChildCreateCallback,
nsIObserver)
#endif // ENABLE_TESTS
void
MaybeTestPBackground()
{
#ifdef ENABLE_TESTS
// This test relies on running the event loop and XPCShell does not always
// do so. Bail out here if we detect that we're running in XPCShell.
if (PR_GetEnv("XPCSHELL_TEST_PROFILE_DIR")) {
return;
}
// This is called too early at startup to test preferences directly. We have
// to install an observer to be notified when preferences are available.
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
MOZ_RELEASE_ASSERT(observerService);
nsCOMPtr<nsIObserver> observer = new BackgroundTester();
nsresult rv = observerService->AddObserver(observer, "profile-after-change",
false);
MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
#endif
}
// XXX Workaround for bug 986973 to maintain the existing broken semantics
template<>
struct nsIConsoleService::COMTypeInfo<nsConsoleService, void> {
static const nsIID kIID;
};
const nsIID nsIConsoleService::COMTypeInfo<nsConsoleService, void>::kIID = NS_ICONSOLESERVICE_IID;
namespace mozilla {
namespace dom {
#ifdef MOZ_NUWA_PROCESS
int32_t ContentParent::sNuwaPid = 0;
bool ContentParent::sNuwaReady = false;
#endif
#define NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC "ipc:network:set-offline"
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
"app-theme-changed",
};
/* 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();
#ifdef MOZ_NUWA_PROCESS
sNuwaPid = nuwaProcess->Pid();
sNuwaReady = false;
#endif
return nuwaProcess.forget();
}
// PreallocateAppProcess is called by the PreallocatedProcessManager.
// ContentParent then takes this process back within
// GetNewOrPreallocatedAppProcess.
/*static*/ already_AddRefed<ContentParent>
ContentParent::PreallocateAppProcess()
{
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::GetNewOrPreallocatedAppProcess(mozIApplication* aApp,
ProcessPriority aInitialPriority,
ContentParent* aOpener,
/*out*/ bool* aTookPreAllocated)
{
MOZ_ASSERT(aApp);
nsRefPtr<ContentParent> process = PreallocatedProcessManager::Take();
if (process) {
if (!process->SetPriorityAndCheckIsAlive(aInitialPriority)) {
// Kill the process just in case it's not actually dead; we don't want
// to "leak" this process!
process->KillHard();
}
else {
nsAutoString manifestURL;
if (NS_FAILED(aApp->GetManifestURL(manifestURL))) {
NS_ERROR("Failed to get manifest URL");
return nullptr;
}
process->TransformPreallocatedIntoApp(aOpener,
manifestURL);
if (aTookPreAllocated) {
*aTookPreAllocated = true;
}
return process.forget();
}
}
// XXXkhuey Nuwa wants the frame loader to try again later, but the
// frame loader is really not set up to do that ...
NS_WARNING("Unable to use pre-allocated app process");
process = new ContentParent(aApp,
/* aOpener = */ aOpener,
/* isForBrowserElement = */ false,
/* isForPreallocated = */ false,
aInitialPriority);
process->Init();
if (aTookPreAllocated) {
*aTookPreAllocated = false;
}
return process.forget();
}
/*static*/ void
ContentParent::StartUp()
{
// We could launch sub processes from content process
// FIXME Bug 1023701 - Stop using ContentParent static methods in
// child process
sCanLaunchSubprocesses = true;
if (XRE_GetProcessType() != GeckoProcessType_Default) {
return;
}
#if defined(MOZ_CONTENT_SANDBOX) && defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 19
// Require sandboxing on B2G >= KitKat. This condition must stay
// in sync with ContentChild::RecvSetProcessSandbox.
if (ContentProcessSandboxStatus() == kSandboxingWouldFail) {
// MOZ_CRASH strings are only for debug builds; make sure the
// message is clear on non-debug builds as well:
printf_stderr("Sandboxing support is required on this platform. "
"Recompile kernel with CONFIG_SECCOMP_FILTER=y\n");
MOZ_CRASH("Sandboxing support is required on this platform.");
}
#endif
// Note: This reporter measures all ContentParents.
RegisterStrongMemoryReporter(new ContentParentsMemoryReporter());
mozilla::dom::time::InitializeDateCacheCleaner();
BlobParent::Startup(BlobParent::FriendKey());
BackgroundChild::Startup();
// Try to preallocate a process that we can transform into an app later.
PreallocatedProcessManager::AllocateAfterDelay();
// Test the PBackground infrastructure on ENABLE_TESTS builds when a special
// testing preference is set.
MaybeTestPBackground();
}
/*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::GetNewOrUsedBrowserProcess(bool aForBrowserElement,
ProcessPriority aPriority,
ContentParent* aOpener)
{
if (!sNonAppContentParents)
sNonAppContentParents = new nsTArray<ContentParent*>();
int32_t maxContentProcesses = Preferences::GetInt("dom.ipc.processCount", 1);
if (maxContentProcesses < 1)
maxContentProcesses = 1;
if (sNonAppContentParents->Length() >= uint32_t(maxContentProcesses)) {
uint32_t startIdx = rand() % sNonAppContentParents->Length();
uint32_t currIdx = startIdx;
do {
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(aOpener);
} else {
// Failed in using the preallocated process: fork from the chrome process.
p = new ContentParent(/* app = */ nullptr,
aOpener,
aForBrowserElement,
/* isForPreallocated = */ false,
aPriority);
p->Init();
}
sNonAppContentParents->AppendElement(p);
return p.forget();
}
/*static*/ ProcessPriority
ContentParent::GetInitialProcessPriority(Element* aFrameElement)
{
// Frames with mozapptype == critical which are expecting a system message
// get FOREGROUND_HIGH priority.
if (!aFrameElement) {
return PROCESS_PRIORITY_FOREGROUND;
}
if (aFrameElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mozapptype,
NS_LITERAL_STRING("inputmethod"), eCaseMatters)) {
return PROCESS_PRIORITY_FOREGROUND_KEYBOARD;
} else if (!aFrameElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mozapptype,
NS_LITERAL_STRING("critical"), eCaseMatters)) {
return PROCESS_PRIORITY_FOREGROUND;
}
nsCOMPtr<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
}
bool
ContentParent::RecvCreateChildProcess(const IPCTabContext& aContext,
const hal::ProcessPriority& aPriority,
const TabId& aOpenerTabId,
ContentParentId* aCpId,
bool* aIsForApp,
bool* aIsForBrowser,
TabId* aTabId)
{
#if 0
if (!CanOpenBrowser(aContext)) {
return false;
}
#endif
nsRefPtr<ContentParent> cp;
MaybeInvalidTabContext tc(aContext);
if (!tc.IsValid()) {
NS_ERROR(nsPrintfCString("Received an invalid TabContext from "
"the child process. (%s)",
tc.GetInvalidReason()).get());
return false;
}
nsCOMPtr<mozIApplication> ownApp = tc.GetTabContext().GetOwnApp();
if (ownApp) {
cp = GetNewOrPreallocatedAppProcess(ownApp,
aPriority,
this);
}
else {
cp = GetNewOrUsedBrowserProcess(/* isBrowserElement = */ true,
aPriority,
this);
}
if (!cp) {
*aCpId = 0;
*aIsForApp = false;
*aIsForBrowser = false;
return true;
}
*aCpId = cp->ChildID();
*aIsForApp = cp->IsForApp();
*aIsForBrowser = cp->IsForBrowser();
ContentProcessManager *cpm = ContentProcessManager::GetSingleton();
cpm->AddContentProcess(cp, this->ChildID());
if (cpm->AddGrandchildProcess(this->ChildID(), cp->ChildID())) {
// Pre-allocate a TabId here to save one time IPC call at app startup.
*aTabId = AllocateTabId(aOpenerTabId,
aContext,
cp->ChildID());
return (*aTabId != 0);
}
return false;
}
bool
ContentParent::AnswerBridgeToChildProcess(const ContentParentId& aCpId)
{
ContentProcessManager *cpm = ContentProcessManager::GetSingleton();
ContentParent* cp = cpm->GetContentProcessById(aCpId);
if (cp) {
ContentParentId parentId;
if (cpm->GetParentProcessId(cp->ChildID(), &parentId) &&
parentId == this->ChildID()) {
return PContentBridge::Bridge(this, cp);
}
}
// You can't bridge to a process you didn't open!
KillHard();
return false;
}
static nsIDocShell* GetOpenerDocShellHelper(Element* aFrameElement)
{
// Propagate the private-browsing status of the element's parent
// docshell to the remote docshell, via the chrome flags.
nsCOMPtr<Element> frameElement = do_QueryInterface(aFrameElement);
MOZ_ASSERT(frameElement);
nsPIDOMWindow* win = frameElement->OwnerDoc()->GetWindow();
if (!win) {
NS_WARNING("Remote frame has no window");
return nullptr;
}
nsIDocShell* docShell = win->GetDocShell();
if (!docShell) {
NS_WARNING("Remote frame has no docshell");
return nullptr;
}
return docShell;
}
bool
ContentParent::AnswerLoadPlugin(const uint32_t& aPluginId)
{
return mozilla::plugins::SetupBridge(aPluginId, this);
}
bool
ContentParent::RecvFindPlugins(const uint32_t& aPluginEpoch,
nsTArray<PluginTag>* aPlugins,
uint32_t* aNewPluginEpoch)
{
return mozilla::plugins::FindPluginsForContent(aPluginEpoch, aPlugins, aNewPluginEpoch);
}
/*static*/ TabParent*
ContentParent::CreateBrowserOrApp(const TabContext& aContext,
Element* aFrameElement,
ContentParent* aOpenerContentParent)
{
if (!sCanLaunchSubprocesses) {
return nullptr;
}
ProcessPriority initialPriority = GetInitialProcessPriority(aFrameElement);
bool isInContentProcess = (XRE_GetProcessType() != GeckoProcessType_Default);
TabId tabId;
nsIDocShell* docShell = GetOpenerDocShellHelper(aFrameElement);
TabId openerTabId;
if (docShell) {
openerTabId = TabParent::GetTabIdFrom(docShell);
}
if (aContext.IsBrowserElement() || !aContext.HasOwnApp()) {
nsRefPtr<TabParent> tp;
nsRefPtr<nsIContentParent> constructorSender;
if (isInContentProcess) {
MOZ_ASSERT(aContext.IsBrowserElement());
constructorSender = CreateContentBridgeParent(aContext,
initialPriority,
openerTabId,
&tabId);
} else {
if (aOpenerContentParent) {
constructorSender = aOpenerContentParent;
} else {
constructorSender =
GetNewOrUsedBrowserProcess(aContext.IsBrowserElement(),
initialPriority);
}
tabId = AllocateTabId(openerTabId,
aContext.AsIPCTabContext(),
constructorSender->ChildID());
}
if (constructorSender) {
uint32_t chromeFlags = 0;
nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(docShell);
if (loadContext && loadContext->UsePrivateBrowsing()) {
chromeFlags |= nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW;
}
bool affectLifetime;
docShell->GetAffectPrivateSessionLifetime(&affectLifetime);
if (affectLifetime) {
chromeFlags |= nsIWebBrowserChrome::CHROME_PRIVATE_LIFETIME;
}
if (tabId == 0) {
return nullptr;
}
nsRefPtr<TabParent> tp(new TabParent(constructorSender, tabId,
aContext, chromeFlags));
tp->SetOwnerElement(aFrameElement);
PBrowserParent* browser = constructorSender->SendPBrowserConstructor(
// DeallocPBrowserParent() releases this ref.
tp.forget().take(),
tabId,
aContext.AsIPCTabContext(),
chromeFlags,
constructorSender->ChildID(),
constructorSender->IsForApp(),
constructorSender->IsForBrowser());
return 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.
nsRefPtr<nsIContentParent> parent;
bool reused = false;
bool tookPreallocated = false;
nsAutoString manifestURL;
if (isInContentProcess) {
parent = CreateContentBridgeParent(aContext,
initialPriority,
openerTabId,
&tabId);
}
else {
nsCOMPtr<mozIApplication> ownApp = aContext.GetOwnApp();
if (!sAppContentParents) {
sAppContentParents =
new nsDataHashtable<nsStringHashKey, ContentParent*>();
}
// Each app gets its own ContentParent instance unless it shares it with
// a parent app.
if (NS_FAILED(ownApp->GetManifestURL(manifestURL))) {
NS_ERROR("Failed to get manifest URL");
return nullptr;
}
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;
}
}
reused = !!p;
if (!p) {
p = GetNewOrPreallocatedAppProcess(ownApp,
initialPriority,
nullptr,
&tookPreallocated);
MOZ_ASSERT(p);
sAppContentParents->Put(manifestURL, p);
}
tabId = AllocateTabId(openerTabId,
aContext.AsIPCTabContext(),
p->ChildID());
parent = static_cast<nsIContentParent*>(p);
}
if (!parent || (tabId == 0)) {
return nullptr;
}
uint32_t chromeFlags = 0;
nsRefPtr<TabParent> tp = new TabParent(parent, tabId, aContext, chromeFlags);
tp->SetOwnerElement(aFrameElement);
PBrowserParent* browser = parent->SendPBrowserConstructor(
// DeallocPBrowserParent() releases this ref.
nsRefPtr<TabParent>(tp).forget().take(),
tabId,
aContext.AsIPCTabContext(),
chromeFlags,
parent->ChildID(),
parent->IsForApp(),
parent->IsForBrowser());
if (isInContentProcess) {
// Just return directly without the following check in content process.
return static_cast<TabParent*>(browser);
}
if (!browser) {
// We failed to actually start the PBrowser. This can happen if the
// other process has already died.
if (!reused) {
// Don't leave a broken ContentParent in the hashtable.
parent->AsContentParent()->KillHard();
sAppContentParents->Remove(manifestURL);
parent = nullptr;
}
// If we took the preallocated process and it was already dead, try
// again with a non-preallocated process. We can be sure this won't
// loop forever, because the next time through there will be no
// preallocated process to take.
if (tookPreallocated) {
return ContentParent::CreateBrowserOrApp(aContext,
aFrameElement,
aOpenerContentParent);
}
// Otherwise just give up.
return nullptr;
}
parent->AsContentParent()->MaybeTakeCPUWakeLock(aFrameElement);
return static_cast<TabParent*>(browser);
}
/*static*/ ContentBridgeParent*
ContentParent::CreateContentBridgeParent(const TabContext& aContext,
const hal::ProcessPriority& aPriority,
const TabId& aOpenerTabId,
/*out*/ TabId* aTabId)
{
MOZ_ASSERT(aTabId);
ContentChild* child = ContentChild::GetSingleton();
ContentParentId cpId;
bool isForApp;
bool isForBrowser;
if (!child->SendCreateChildProcess(aContext.AsIPCTabContext(),
aPriority,
aOpenerTabId,
&cpId,
&isForApp,
&isForBrowser,
aTabId)) {
return nullptr;
}
if (cpId == 0) {
return nullptr;
}
if (!child->CallBridgeToChildProcess(cpId)) {
return nullptr;
}
ContentBridgeParent* parent = child->GetLastBridge();
parent->SetChildID(cpId);
parent->SetIsForApp(isForApp);
parent->SetIsForBrowser(isForBrowser);
return parent;
}
void
ContentParent::GetAll(nsTArray<ContentParent*>& aArray)
{
aArray.Clear();
if (!sContentParents) {
return;
}
for (ContentParent* cp = sContentParents->getFirst(); cp;
cp = cp->LinkedListElement<ContentParent>::getNext()) {
if (cp->mIsAlive) {
aArray.AppendElement(cp);
}
}
}
void
ContentParent::GetAllEvenIfDead(nsTArray<ContentParent*>& aArray)
{
aArray.Clear();
if (!sContentParents) {
return;
}
for (ContentParent* cp = sContentParents->getFirst(); cp;
cp = cp->LinkedListElement<ContentParent>::getNext()) {
aArray.AppendElement(cp);
}
}
void
ContentParent::Init()
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
size_t length = ArrayLength(sObserverTopics);
for (size_t i = 0; i < length; ++i) {
obs->AddObserver(this, sObserverTopics[i], false);
}
}
Preferences::AddStrongObserver(this, "");
if (obs) {
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(ContentParent* aOpener,
const nsAString& aAppManifestURL)
{
MOZ_ASSERT(IsPreallocated());
mOpener = aOpener;
mAppManifestURL = aAppManifestURL;
TryGetNameFromManifestURL(aAppManifestURL, mAppName);
}
void
ContentParent::TransformPreallocatedIntoBrowser(ContentParent* aOpener)
{
// Reset mAppManifestURL, mIsForBrowser and mOSPrivileges for browser.
mOpener = aOpener;
mAppManifestURL.Truncate();
mIsForBrowser = true;
}
void
ContentParent::ShutDownProcess(bool aCloseWithError)
{
using mozilla::dom::quota::QuotaManager;
if (QuotaManager* quotaManager = QuotaManager::Get()) {
quotaManager->AbortCloseStoragesForProcess(this);
}
// 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();
#ifdef MOZ_NUWA_PROCESS
// Kill Nuwa process forcibly to break its IPC channels and finalize
// corresponding parents.
if (IsNuwaProcess()) {
KillHard();
}
#endif
}
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;
}
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
{
explicit 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
ContentProcessManager *cpm = ContentProcessManager::GetSingleton();
nsTArray<ContentParentId> childIDArray =
cpm->GetAllChildProcessById(this->ChildID());
for(uint32_t i = 0; i < childIDArray.Length(); i++) {
ContentParent* cp = cpm->GetContentProcessById(childIDArray[i]);
MessageLoop::current()->PostTask(
FROM_HERE,
NewRunnableMethod(cp, &ContentParent::ShutDownProcess,
/* closeWithError */ false));
}
cpm->RemoveContentProcess(this->ChildID());
}
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::JavaScriptShared*
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);
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 */);
ContentProcessManager::GetSingleton()->AddContentProcess(this);
}
#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 */);
ContentProcessManager::GetSingleton()->AddContentProcess(this);
}
#endif // MOZ_NUWA_PROCESS
ContentParent::~ContentParent()
{
if (mForceKillTask) {
mForceKillTask->Cancel();
}
if (OtherProcess())
base::CloseProcessHandle(OtherProcess());
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
// We should be removed from all these lists in ActorDestroy.
MOZ_ASSERT(!sPrivateContent || !sPrivateContent->Contains(this));
if (mAppManifestURL.IsEmpty()) {
MOZ_ASSERT(!sNonAppContentParents ||
!sNonAppContentParents->Contains(this));
} else {
// In general, we expect sAppContentParents->Get(mAppManifestURL) to be
// nullptr. But it could be that we created another ContentParent for
// this app after we did this->ActorDestroy(), so the right check is
// that sAppContentParents->Get(mAppManifestURL) != this.
MOZ_ASSERT(!sAppContentParents ||
sAppContentParents->Get(mAppManifestURL) != this);
}
#ifdef MOZ_NUWA_PROCESS
if (IsNuwaProcess()) {
sNuwaReady = false;
sNuwaPid = 0;
}
#endif
}
void
ContentParent::InitInternal(ProcessPriority aInitialPriority,
bool aSetupOffMainThreadCompositing,
bool aSendRegisteredChrome)
{
// Set the subprocess's priority. We do this early on because we're likely
// /lowering/ the process's CPU and memory priority, which it has inherited
// from this process.
//
// This call can cause us to send IPC messages to the child process, so it
// must come after the Open() call above.
ProcessPriorityManager::SetProcessPriority(this, aInitialPriority);
if (aSetupOffMainThreadCompositing) {
// NB: internally, this will send an IPC message to the child
// process to get it to create the CompositorChild. This
// message goes through the regular IPC queue for this
// channel, so delivery will happen-before any other messages
// we send. The CompositorChild must be created before any
// PBrowsers are created, because they rely on the Compositor
// already being around. (Creation is async, so can't happen
// on demand.)
bool useOffMainThreadCompositing = !!CompositorParent::CompositorLoop();
if (useOffMainThreadCompositing) {
DebugOnly<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);
nsCString ID(gAppData->ID);
nsCString vendor(gAppData->vendor);
// Sending all information to content process.
unused << SendAppInfo(version, buildID, name, UAName, ID, vendor);
}
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::GetOrCreateAudioChannelService();
*aState = AUDIO_CHANNEL_STATE_NORMAL;
MOZ_ASSERT(service);
*aState = service->GetStateInternal(aChannel, mChildID,
aElementHidden, aElementWasHidden);
return true;
}
bool
ContentParent::RecvAudioChannelRegisterType(const AudioChannel& aChannel,
const bool& aWithVideo)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetOrCreateAudioChannelService();
MOZ_ASSERT(service);
service->RegisterType(aChannel, mChildID, aWithVideo);
return true;
}
bool
ContentParent::RecvAudioChannelUnregisterType(const AudioChannel& aChannel,
const bool& aElementHidden,
const bool& aWithVideo)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetOrCreateAudioChannelService();
MOZ_ASSERT(service);
service->UnregisterType(aChannel, aElementHidden, mChildID, aWithVideo);
return true;
}
bool
ContentParent::RecvAudioChannelChangedNotification()
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetOrCreateAudioChannelService();
MOZ_ASSERT(service);
service->SendAudioChannelChangedNotification(ChildID());
return true;
}
bool
ContentParent::RecvAudioChannelChangeDefVolChannel(const int32_t& aChannel,
const bool& aHidden)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetOrCreateAudioChannelService();
MOZ_ASSERT(service);
service->SetDefaultVolumeControlChannelInternal(aChannel,
aHidden, mChildID);
return true;
}
bool
ContentParent::RecvDataStoreGetStores(
const nsString& aName,
const nsString& aOwner,
const IPC::Principal& aPrincipal,
InfallibleTArray<DataStoreSetting>* aValue)
{
nsRefPtr<DataStoreService> service = DataStoreService::GetOrCreate();
if (NS_WARN_IF(!service)) {
return false;
}
nsresult rv = service->GetDataStoresFromIPC(aName, aOwner, aPrincipal, aValue);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
mSendDataStoreInfos = true;
return true;
}
bool
ContentParent::RecvGetVolumes(InfallibleTArray<VolumeInfo>* aResult)
{
#ifdef MOZ_WIDGET_GONK
nsRefPtr<nsVolumeService> vs = nsVolumeService::GetSingleton();
vs->GetVolumesForIPC(aResult);
return true;
#else
NS_WARNING("ContentParent::RecvGetVolumes shouldn't be called when MOZ_WIDGET_GONK is not defined");
return false;
#endif
}
bool
ContentParent::RecvNuwaReady()
{
#ifdef MOZ_NUWA_PROCESS
if (!IsNuwaProcess()) {
NS_ERROR(
nsPrintfCString(
"Terminating child process %d for unauthorized IPC message: NuwaReady",
Pid()).get());
KillHard();
return false;
}
sNuwaReady = true;
PreallocatedProcessManager::OnNuwaReady();
return true;
#else
NS_ERROR("ContentParent::RecvNuwaReady() not implemented!");
return false;
#endif
}
bool
ContentParent::RecvAddNewProcess(const uint32_t& aPid,
const InfallibleTArray<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));
}
// Update offline settings.
bool isOffline;
InfallibleTArray<nsString> unusedDictionaries;
ClipboardCapabilities clipboardCaps;
RecvGetXPCOMProcessAttributes(&isOffline, &unusedDictionaries,
&clipboardCaps);
content->SendSetOffline(isOffline);
MOZ_ASSERT(!clipboardCaps.supportsSelectionClipboard() &&
!clipboardCaps.supportsFindClipboard(),
"Unexpected values");
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(nsIDOMGeoPositionErrorCallback)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIObserver)
NS_INTERFACE_MAP_END
NS_IMETHODIMP
ContentParent::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aData)
{
if (!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();
#ifdef MOZ_NUWA_PROCESS
if (!(IsNuwaReady() && IsNuwaProcess())) {
#endif
if (!SendSetOffline(!strcmp(offline, "true") ? true : false)) {
return NS_ERROR_NOT_AVAILABLE;
}
#ifdef MOZ_NUWA_PROCESS
}
#endif
}
// listening for alert notifications
else if (!strcmp(aTopic, "alertfinished") ||
!strcmp(aTopic, "alertclickcallback") ||
!strcmp(aTopic, "alertshow") ) {
if (!SendNotifyAlertsObserver(nsDependentCString(aTopic),
nsDependentString(aData)))
return NS_ERROR_NOT_AVAILABLE;
}
else if (!strcmp(aTopic, "child-memory-reporter-request")) {
bool isNuwa = false;
#ifdef MOZ_NUWA_PROCESS
isNuwa = IsNuwaProcess();
#endif
if (!isNuwa) {
unsigned generation;
int anonymize, minimize, identOffset = -1;
nsDependentString msg(aData);
NS_ConvertUTF16toUTF8 cmsg(msg);
if (sscanf(cmsg.get(),
"generation=%x anonymize=%d minimize=%d DMDident=%n",
&generation, &anonymize, &minimize, &identOffset) < 3
|| identOffset < 0) {
return NS_ERROR_INVALID_ARG;
}
// The pre-%n part of the string should be all ASCII, so the byte
// offset in identOffset should be correct as a char offset.
MOZ_ASSERT(cmsg[identOffset - 1] == '=');
MaybeFileDesc dmdFileDesc = void_t();
#ifdef MOZ_DMD
nsAutoString dmdIdent(Substring(msg, identOffset));
if (!dmdIdent.IsEmpty()) {
FILE *dmdFile = nullptr;
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);
#ifdef MOZ_NUWA_PROCESS
if (!(IsNuwaReady() && IsNuwaProcess()))
#endif
{
unused << SendFilePathUpdate(file->mStorageType, file->mStorageName, file->mPath, creason);
}
}
#ifdef MOZ_WIDGET_GONK
else if(!strcmp(aTopic, NS_VOLUME_STATE_CHANGED)) {
nsCOMPtr<nsIVolume> vol = do_QueryInterface(aSubject);
if (!vol) {
return NS_ERROR_NOT_AVAILABLE;
}
nsString volName;
nsString mountPoint;
int32_t state;
int32_t mountGeneration;
bool isMediaPresent;
bool isSharing;
bool isFormatting;
bool isFake;
bool isUnmounting;
vol->GetName(volName);
vol->GetMountPoint(mountPoint);
vol->GetState(&state);
vol->GetMountGeneration(&mountGeneration);
vol->GetIsMediaPresent(&isMediaPresent);
vol->GetIsSharing(&isSharing);
vol->GetIsFormatting(&isFormatting);
vol->GetIsFake(&isFake);
vol->GetIsUnmounting(&isUnmounting);
#ifdef MOZ_NUWA_PROCESS
if (!(IsNuwaReady() && IsNuwaProcess()))
#endif
{
unused << SendFileSystemUpdate(volName, mountPoint, state,
mountGeneration, isMediaPresent,
isSharing, isFormatting, isFake,
isUnmounting);
}
} else if (!strcmp(aTopic, "phone-state-changed")) {
nsString state(aData);
unused << SendNotifyPhoneStateChange(state);
}
#endif
#ifdef ACCESSIBILITY
// Make sure accessibility is running in content process when accessibility
// gets initiated in chrome process.
else if (aData && (*aData == '1') &&
!strcmp(aTopic, "a11y-init-or-shutdown")) {
unused << SendActivateA11y();
}
#endif
else if (!strcmp(aTopic, "app-theme-changed")) {
unused << SendOnAppThemeChanged();
}
return NS_OK;
}
a11y::PDocAccessibleParent*
ContentParent::AllocPDocAccessibleParent(PDocAccessibleParent* aParent, const uint64_t&)
{
#ifdef ACCESSIBILITY
return new a11y::DocAccessibleParent();
#else
return nullptr;
#endif
}
bool
ContentParent::DeallocPDocAccessibleParent(PDocAccessibleParent* aParent)
{
#ifdef ACCESSIBILITY
delete static_cast<a11y::DocAccessibleParent*>(aParent);
#endif
return true;
}
bool
ContentParent::RecvPDocAccessibleConstructor(PDocAccessibleParent* aDoc, PDocAccessibleParent* aParentDoc, const uint64_t& aParentID)
{
#ifdef ACCESSIBILITY
auto doc = static_cast<a11y::DocAccessibleParent*>(aDoc);
if (aParentDoc) {
MOZ_ASSERT(aParentID);
auto parentDoc = static_cast<a11y::DocAccessibleParent*>(aParentDoc);
return parentDoc->AddChildDoc(doc, aParentID);
} else {
MOZ_ASSERT(!aParentID);
GetAccService()->RemoteDocAdded(doc);
}
#endif
return true;
}
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(ContentParentId* aCpId,
bool* aIsForApp, bool* aIsForBrowser)
{
*aCpId = mChildID;
*aIsForApp = IsForApp();
*aIsForBrowser = mIsForBrowser;
return true;
}
bool
ContentParent::RecvGetXPCOMProcessAttributes(bool* aIsOffline,
InfallibleTArray<nsString>* dictionaries,
ClipboardCapabilities* clipboardCaps)
{
nsCOMPtr<nsIIOService> io(do_GetIOService());
MOZ_ASSERT(io, "No IO service?");
DebugOnly<nsresult> rv = io->GetOffline(aIsOffline);
MOZ_ASSERT(NS_SUCCEEDED(rv), "Failed getting offline?");
nsCOMPtr<nsISpellChecker> spellChecker(do_GetService(NS_SPELLCHECKER_CONTRACTID));
MOZ_ASSERT(spellChecker, "No spell checker?");
spellChecker->GetDictionaryList(dictionaries);
nsCOMPtr<nsIClipboard> clipboard(do_GetService("@mozilla.org/widget/clipboard;1"));
MOZ_ASSERT(clipboard, "No clipboard?");
rv = clipboard->SupportsSelectionClipboard(&clipboardCaps->supportsSelectionClipboard());
MOZ_ASSERT(NS_SUCCEEDED(rv));
rv = clipboard->SupportsFindClipboard(&clipboardCaps->supportsFindClipboard());
MOZ_ASSERT(NS_SUCCEEDED(rv));
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 TabId& aTabId,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpId,
const bool& aIsForApp,
const bool& aIsForBrowser)
{
return nsIContentParent::AllocPBrowserParent(aTabId,
aContext,
aChromeFlags,
aCpId,
aIsForApp,
aIsForBrowser);
}
bool
ContentParent::DeallocPBrowserParent(PBrowserParent* frame)
{
return nsIContentParent::DeallocPBrowserParent(frame);
}
PDeviceStorageRequestParent*
ContentParent::AllocPDeviceStorageRequestParent(const DeviceStorageParams& aParams)
{
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)
{
return nsIContentParent::DeallocPBlobParent(aActor);
}
mozilla::PRemoteSpellcheckEngineParent *
ContentParent::AllocPRemoteSpellcheckEngineParent()
{
mozilla::RemoteSpellcheckEngineParent *parent = new mozilla::RemoteSpellcheckEngineParent();
return parent;
}
bool
ContentParent::DeallocPRemoteSpellcheckEngineParent(PRemoteSpellcheckEngineParent *parent)
{
delete parent;
return true;
}
void
ContentParent::KillHard()
{
// On Windows, calling KillHard multiple times causes problems - the
// process handle becomes invalid on the first call, causing a second call
// to crash our process - more details in bug 890840.
if (mCalledKillHard) {
return;
}
mCalledKillHard = true;
mForceKillTask = nullptr;
// This ensures the process is eventually killed, but doesn't
// immediately KILLITWITHFIRE because we want to get a minidump if
// possible. After a timeout though, the process is forceably
// killed.
if (!KillProcess(OtherProcess(), 1, false)) {
NS_WARNING("failed to kill subprocess!");
}
if (mSubprocess) {
mSubprocess->SetAlreadyDead();
}
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(&ProcessWatcher::EnsureProcessTerminated,
OtherProcess(), /*force=*/true));
// 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;
}
PMemoryReportRequestParent*
ContentParent::AllocPMemoryReportRequestParent(const uint32_t& aGeneration,
const bool &aAnonymize,
const bool &aMinimizeMemoryUsage,
const MaybeFileDesc &aDMDFile)
{
MemoryReportRequestParent* parent = new MemoryReportRequestParent();
return parent;
}
bool
ContentParent::DeallocPMemoryReportRequestParent(PMemoryReportRequestParent* actor)
{
delete actor;
return true;
}
PCycleCollectWithLogsParent*
ContentParent::AllocPCycleCollectWithLogsParent(const bool& aDumpAllTraces,
const FileDescriptor& aGCLog,
const FileDescriptor& aCCLog)
{
MOZ_CRASH("Don't call this; use ContentParent::CycleCollectWithLogs");
}
bool
ContentParent::DeallocPCycleCollectWithLogsParent(PCycleCollectWithLogsParent* aActor)
{
delete aActor;
return true;
}
bool
ContentParent::CycleCollectWithLogs(bool aDumpAllTraces,
nsICycleCollectorLogSink* aSink,
nsIDumpGCAndCCLogsCallback* aCallback)
{
return CycleCollectWithLogsParent::AllocAndSendConstructor(this,
aDumpAllTraces,
aSink,
aCallback);
}
PTestShellParent*
ContentParent::AllocPTestShellParent()
{
return new TestShellParent();
}
bool
ContentParent::DeallocPTestShellParent(PTestShellParent* shell)
{
delete shell;
return true;
}
PMobileConnectionParent*
ContentParent::AllocPMobileConnectionParent(const uint32_t& aClientId)
{
#ifdef MOZ_B2G_RIL
nsRefPtr<MobileConnectionParent> parent = new MobileConnectionParent(aClientId);
// We release this ref in DeallocPMobileConnectionParent().
parent->AddRef();
return parent;
#else
MOZ_CRASH("No support for mobileconnection on this platform!");
#endif
}
bool
ContentParent::DeallocPMobileConnectionParent(PMobileConnectionParent* aActor)
{
#ifdef MOZ_B2G_RIL
// MobileConnectionParent is refcounted, must not be freed manually.
static_cast<MobileConnectionParent*>(aActor)->Release();
return true;
#else
MOZ_CRASH("No support for mobileconnection on this platform!");
#endif
}
PNeckoParent*
ContentParent::AllocPNeckoParent()
{
return new NeckoParent();
}
bool
ContentParent::DeallocPNeckoParent(PNeckoParent* necko)
{
delete necko;
return true;
}
PPrintingParent*
ContentParent::AllocPPrintingParent()
{
return new PrintingParent();
}
bool
ContentParent::RecvPPrintingConstructor(PPrintingParent* aActor)
{
return true;
}
bool
ContentParent::DeallocPPrintingParent(PPrintingParent* printing)
{
delete printing;
return true;
}
PScreenManagerParent*
ContentParent::AllocPScreenManagerParent(uint32_t* aNumberOfScreens,
float* aSystemDefaultScale,
bool* aSuccess)
{
return new ScreenManagerParent(aNumberOfScreens, aSystemDefaultScale, aSuccess);
}
bool
ContentParent::DeallocPScreenManagerParent(PScreenManagerParent* aActor)
{
delete aActor;
return true;
}
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;
}
PCellBroadcastParent*
ContentParent::AllocPCellBroadcastParent()
{
if (!AssertAppProcessPermission(this, "cellbroadcast")) {
return nullptr;
}
CellBroadcastParent* actor = new CellBroadcastParent();
actor->AddRef();
return actor;
}
bool
ContentParent::DeallocPCellBroadcastParent(PCellBroadcastParent* aActor)
{
static_cast<CellBroadcastParent*>(aActor)->Release();
return true;
}
bool
ContentParent::RecvPCellBroadcastConstructor(PCellBroadcastParent* aActor)
{
return static_cast<CellBroadcastParent*>(aActor)->Init();
}
PSmsParent*
ContentParent::AllocPSmsParent()
{
if (!AssertAppProcessPermission(this, "sms")) {
return nullptr;
}
SmsParent* parent = new SmsParent();
parent->AddRef();
return parent;
}
bool
ContentParent::DeallocPSmsParent(PSmsParent* aSms)
{
static_cast<SmsParent*>(aSms)->Release();
return true;
}
PTelephonyParent*
ContentParent::AllocPTelephonyParent()
{
if (!AssertAppProcessPermission(this, "telephony")) {
return nullptr;
}
TelephonyParent* actor = new TelephonyParent();
NS_ADDREF(actor);
return actor;
}
bool
ContentParent::DeallocPTelephonyParent(PTelephonyParent* aActor)
{
static_cast<TelephonyParent*>(aActor)->Release();
return true;
}
PVoicemailParent*
ContentParent::AllocPVoicemailParent()
{
if (!AssertAppProcessPermission(this, "voicemail")) {
return nullptr;
}
VoicemailParent* actor = new VoicemailParent();
actor->AddRef();
return actor;
}
bool
ContentParent::RecvPVoicemailConstructor(PVoicemailParent* aActor)
{
return static_cast<VoicemailParent*>(aActor)->Init();
}
bool
ContentParent::DeallocPVoicemailParent(PVoicemailParent* aActor)
{
static_cast<VoicemailParent*>(aActor)->Release();
return true;
}
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::GetOrCreateSpeakerManagerService();
MOZ_ASSERT(service);
*aValue = service->GetSpeakerStatus();
return true;
#endif
return false;
}
bool
ContentParent::RecvSpeakerManagerForceSpeaker(const bool& aEnable)
{
#ifdef MOZ_WIDGET_GONK
nsRefPtr<SpeakerManagerService> service =
SpeakerManagerService::GetOrCreateSpeakerManagerService();
MOZ_ASSERT(service);
service->ForceSpeaker(aEnable, mChildID);
return true;
#endif
return false;
}
bool
ContentParent::RecvStartVisitedQuery(const URIParams& aURI)
{
nsCOMPtr<nsIURI> newURI = DeserializeURI(aURI);
if (!newURI) {
return false;
}
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->RegisterVisitedCallback(newURI, nullptr);
}
return true;
}
bool
ContentParent::RecvVisitURI(const URIParams& uri,
const OptionalURIParams& referrer,
const uint32_t& flags)
{
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
nsCOMPtr<nsIURI> ourReferrer = DeserializeURI(referrer);
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->VisitURI(ourURI, ourReferrer, flags);
}
return true;
}
bool
ContentParent::RecvSetURITitle(const URIParams& uri,
const nsString& title)
{
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->SetURITitle(ourURI, title);
}
return true;
}
bool
ContentParent::RecvGetRandomValues(const uint32_t& length,
InfallibleTArray<uint8_t>* randomValues)
{
uint8_t* buf = Crypto::GetRandomValues(length);
if (!buf) {
return true;
}
randomValues->SetCapacity(length);
randomValues->SetLength(length);
memcpy(randomValues->Elements(), buf, length);
NS_Free(buf);
return true;
}
bool
ContentParent::RecvGetSystemMemory(const uint64_t& aGetterId)
{
uint32_t memoryTotal = 0;
#if defined(XP_LINUX)
memoryTotal = mozilla::hal::GetTotalSystemMemoryLevel();
#endif
unused << SendSystemMemoryAvailable(aGetterId, memoryTotal);
return true;
}
bool
ContentParent::RecvIsSecureURI(const uint32_t& type,
const URIParams& uri,
const uint32_t& flags,
bool* isSecureURI)
{
nsCOMPtr<nsISiteSecurityService> sss(do_GetService(NS_SSSERVICE_CONTRACTID));
if (!sss) {
return false;
}
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
nsresult rv = sss->IsSecureURI(type, ourURI, flags, isSecureURI);
return NS_SUCCEEDED(rv);
}
bool
ContentParent::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 nsString& aData,
const IPC::Principal& aPrincipal)
{
#ifdef MOZ_CHILD_PERMISSIONS
uint32_t permission = mozilla::CheckPermission(this, aPrincipal,
"desktop-notification");
if (permission != nsIPermissionManager::ALLOW_ACTION) {
return true;
}
#endif /* MOZ_CHILD_PERMISSIONS */
nsCOMPtr<nsIAlertsService> sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID));
if (sysAlerts) {
sysAlerts->ShowAlertNotification(aImageUrl, aTitle, aText, aTextClickable,
aCookie, this, aName, aBidi, aLang,
aData, aPrincipal);
}
return true;
}
bool
ContentParent::RecvCloseAlert(const nsString& aName,
const IPC::Principal& aPrincipal)
{
#ifdef MOZ_CHILD_PERMISSIONS
uint32_t permission = mozilla::CheckPermission(this, aPrincipal,
"desktop-notification");
if (permission != nsIPermissionManager::ALLOW_ACTION) {
return true;
}
#endif
nsCOMPtr<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::RecvRpcMessage(const nsString& aMsg,
const ClonedMessageData& aData,
const InfallibleTArray<CpowEntry>& aCpows,
const IPC::Principal& aPrincipal,
InfallibleTArray<nsString>* aRetvals)
{
return nsIContentParent::RecvRpcMessage(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, nsIDOMGeoPositionErrorCallback* errorCallBack, bool highAccuracy)
{
nsCOMPtr<nsIDOMGeoGeolocation> geo = do_GetService("@mozilla.org/geolocation;1");
if (!geo) {
return -1;
}
PositionOptions* options = new PositionOptions();
options->mTimeout = 0;
options->mMaximumAge = 0;
options->mEnableHighAccuracy = highAccuracy;
int32_t retval = 1;
geo->WatchPosition(watcher, errorCallBack, options, &retval);
return retval;
}
bool
ContentParent::RecvAddGeolocationListener(const IPC::Principal& aPrincipal,
const bool& aHighAccuracy)
{
#ifdef MOZ_CHILD_PERMISSIONS
if (!ContentParent::IgnoreIPCPrincipal()) {
uint32_t permission = mozilla::CheckPermission(this, aPrincipal,
"geolocation");
if (permission != nsIPermissionManager::ALLOW_ACTION) {
return true;
}
}
#endif /* MOZ_CHILD_PERMISSIONS */
// To ensure no geolocation updates are skipped, we always force the
// creation of a new listener.
RecvRemoveGeolocationListener();
mGeolocationWatchID = AddGeolocationListener(this, this, aHighAccuracy);
// let the the settings cache know the origin of the new listener
nsAutoCString origin;
// hint to the compiler to use the conversion operator to nsIPrincipal*
nsCOMPtr<nsIPrincipal> principal = static_cast<nsIPrincipal*>(aPrincipal);
if (!principal) {
return true;
}
principal->GetOrigin(getter_Copies(origin));
nsRefPtr<nsGeolocationSettings> gs = nsGeolocationSettings::GetGeolocationSettings();
if (gs) {
gs->PutWatchOrigin(mGeolocationWatchID, origin);
}
return true;
}
bool
ContentParent::RecvRemoveGeolocationListener()
{
if (mGeolocationWatchID != -1) {
nsCOMPtr<nsIDOMGeoGeolocation> geo = do_GetService("@mozilla.org/geolocation;1");
if (!geo) {
return true;
}
geo->ClearWatch(mGeolocationWatchID);
nsRefPtr<nsGeolocationSettings> gs = nsGeolocationSettings::GetGeolocationSettings();
if (gs) {
gs->RemoveWatchOrigin(mGeolocationWatchID);
}
mGeolocationWatchID = -1;
}
return true;
}
bool
ContentParent::RecvSetGeolocationHigherAccuracy(const bool& aEnable)
{
// This should never be called without a listener already present,
// so this check allows us to forgo securing privileges.
if (mGeolocationWatchID != -1) {
nsCString origin;
nsRefPtr<nsGeolocationSettings> gs = nsGeolocationSettings::GetGeolocationSettings();
// get the origin stored for the curent watch ID
if (gs) {
gs->GetWatchOrigin(mGeolocationWatchID, origin);
}
// remove and recreate a new, high-accuracy listener
RecvRemoveGeolocationListener();
mGeolocationWatchID = AddGeolocationListener(this, this, aEnable);
// map the new watch ID to the origin
if (gs) {
gs->PutWatchOrigin(mGeolocationWatchID, origin);
}
}
return true;
}
NS_IMETHODIMP
ContentParent::HandleEvent(nsIDOMGeoPosition* postion)
{
unused << SendGeolocationUpdate(GeoPosition(postion));
return NS_OK;
}
NS_IMETHODIMP
ContentParent::HandleEvent(nsIDOMGeoPositionError* postionError)
{
int16_t errorCode;
nsresult rv;
rv = postionError->GetCode(&errorCode);
NS_ENSURE_SUCCESS(rv,rv);
unused << SendGeolocationError(errorCode);
return NS_OK;
}
nsConsoleService *
ContentParent::GetConsoleService()
{
if (mConsoleService) {
return mConsoleService.get();
}
// 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;
}
#ifdef MOZ_NUWA_PROCESS
if (IsNuwaProcess() && IsNuwaReady()) {
// Nuwa won't receive frame messages after it is frozen.
return true;
}
#endif
return SendAsyncMessage(nsString(aMessage), data, cpows, Principal(aPrincipal));
}
bool
ContentParent::CheckPermission(const nsAString& aPermission)
{
return AssertAppProcessPermission(this, NS_ConvertUTF16toUTF8(aPermission).get());
}
bool
ContentParent::CheckManifestURL(const nsAString& aManifestURL)
{
return AssertAppProcessManifestURL(this, NS_ConvertUTF16toUTF8(aManifestURL).get());
}
bool
ContentParent::CheckAppHasPermission(const nsAString& aPermission)
{
return AssertAppHasPermission(this, NS_ConvertUTF16toUTF8(aPermission).get());
}
bool
ContentParent::CheckAppHasStatus(unsigned short aStatus)
{
return AssertAppHasStatus(this, aStatus);
}
bool
ContentParent::KillChild()
{
KillHard();
return true;
}
PBlobParent*
ContentParent::SendPBlobConstructor(PBlobParent* aActor,
const BlobConstructorParams& aParams)
{
return PContentParent::SendPBlobConstructor(aActor, aParams);
}
bool
ContentParent::RecvSystemMessageHandled()
{
SystemMessageHandledListener::OnSystemMessageHandled();
return true;
}
PBrowserParent*
ContentParent::SendPBrowserConstructor(PBrowserParent* aActor,
const TabId& aTabId,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpId,
const bool& aIsForApp,
const bool& aIsForBrowser)
{
return PContentParent::SendPBrowserConstructor(aActor,
aTabId,
aContext,
aChromeFlags,
aCpId,
aIsForApp,
aIsForBrowser);
}
bool
ContentParent::RecvCreateFakeVolume(const nsString& fsName, const nsString& mountPoint)
{
#ifdef MOZ_WIDGET_GONK
nsresult rv;
nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
if (vs) {
vs->CreateFakeVolume(fsName, mountPoint);
}
return true;
#else
NS_WARNING("ContentParent::RecvCreateFakeVolume shouldn't be called when MOZ_WIDGET_GONK is not defined");
return false;
#endif
}
bool
ContentParent::RecvSetFakeVolumeState(const nsString& fsName, const int32_t& fsState)
{
#ifdef MOZ_WIDGET_GONK
nsresult rv;
nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
if (vs) {
vs->SetFakeVolumeState(fsName, fsState);
}
return true;
#else
NS_WARNING("ContentParent::RecvSetFakeVolumeState shouldn't be called when MOZ_WIDGET_GONK is not defined");
return false;
#endif
}
bool
ContentParent::RecvKeywordToURI(const nsCString& aKeyword,
nsString* aProviderName,
OptionalInputStreamParams* aPostData,
OptionalURIParams* aURI)
{
nsCOMPtr<nsIURIFixup> fixup = do_GetService(NS_URIFIXUP_CONTRACTID);
if (!fixup) {
return true;
}
nsCOMPtr<nsIInputStream> postData;
nsCOMPtr<nsIURIFixupInfo> info;
if (NS_FAILED(fixup->KeywordToURI(aKeyword, getter_AddRefs(postData),
getter_AddRefs(info)))) {
return true;
}
info->GetKeywordProviderName(*aProviderName);
nsTArray<mozilla::ipc::FileDescriptor> fds;
SerializeInputStream(postData, *aPostData, fds);
MOZ_ASSERT(fds.IsEmpty());
nsCOMPtr<nsIURI> uri;
info->GetPreferredURI(getter_AddRefs(uri));
SerializeURI(uri, *aURI);
return true;
}
bool
ContentParent::RecvNotifyKeywordSearchLoading(const nsString &aProvider,
const nsString &aKeyword) {
#ifdef MOZ_TOOLKIT_SEARCH
nsCOMPtr<nsIBrowserSearchService> searchSvc = do_GetService("@mozilla.org/browser/search-service;1");
if (searchSvc) {
nsCOMPtr<nsISearchEngine> searchEngine;
searchSvc->GetEngineByName(aProvider, getter_AddRefs(searchEngine));
if (searchEngine) {
nsCOMPtr<nsIObserverService> obsSvc = mozilla::services::GetObserverService();
if (obsSvc) {
// Note that "keyword-search" refers to a search via the url
// bar, not a bookmarks keyword search.
obsSvc->NotifyObservers(searchEngine, "keyword-search", aKeyword.get());
}
}
}
#endif
return true;
}
bool
ContentParent::ShouldContinueFromReplyTimeout()
{
return false;
}
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(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::RecvGetFileReferences(const PersistenceType& aPersistenceType,
const nsCString& aOrigin,
const nsString& aDatabaseName,
const int64_t& aFileId,
int32_t* aRefCnt,
int32_t* aDBRefCnt,
int32_t* aSliceRefCnt,
bool* aResult)
{
MOZ_ASSERT(aRefCnt);
MOZ_ASSERT(aDBRefCnt);
MOZ_ASSERT(aSliceRefCnt);
MOZ_ASSERT(aResult);
if (NS_WARN_IF(aPersistenceType != quota::PERSISTENCE_TYPE_PERSISTENT &&
aPersistenceType != quota::PERSISTENCE_TYPE_TEMPORARY)) {
return false;
}
if (NS_WARN_IF(aOrigin.IsEmpty())) {
return false;
}
if (NS_WARN_IF(aDatabaseName.IsEmpty())) {
return false;
}
if (NS_WARN_IF(aFileId < 1)) {
return false;
}
nsRefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::Get();
if (NS_WARN_IF(!mgr)) {
return false;
}
if (NS_WARN_IF(!mgr->IsMainProcess())) {
return false;
}
nsresult rv =
mgr->BlockAndGetFileReferences(aPersistenceType,
aOrigin,
aDatabaseName,
aFileId,
aRefCnt,
aDBRefCnt,
aSliceRefCnt,
aResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
return true;
}
bool
ContentParent::IgnoreIPCPrincipal()
{
static bool sDidAddVarCache = false;
static bool sIgnoreIPCPrincipal = false;
if (!sDidAddVarCache) {
sDidAddVarCache = true;
Preferences::AddBoolVarCache(&sIgnoreIPCPrincipal,
"dom.testing.ignore_ipc_principal", false);
}
return sIgnoreIPCPrincipal;
}
void
ContentParent::NotifyUpdatedDictionaries()
{
nsAutoTArray<ContentParent*, 8> processes;
GetAll(processes);
nsCOMPtr<nsISpellChecker> spellChecker(do_GetService(NS_SPELLCHECKER_CONTRACTID));
MOZ_ASSERT(spellChecker, "No spell checker?");
InfallibleTArray<nsString> dictionaries;
spellChecker->GetDictionaryList(&dictionaries);
for (size_t i = 0; i < processes.Length(); ++i) {
unused << processes[i]->SendUpdateDictionaryList(dictionaries);
}
}
/*static*/ TabId
ContentParent::AllocateTabId(const TabId& aOpenerTabId,
const IPCTabContext& aContext,
const ContentParentId& aCpId)
{
TabId tabId;
if (XRE_GetProcessType() == GeckoProcessType_Default) {
ContentProcessManager *cpm = ContentProcessManager::GetSingleton();
tabId = cpm->AllocateTabId(aOpenerTabId, aContext, aCpId);
}
else {
ContentChild::GetSingleton()->SendAllocateTabId(aOpenerTabId,
aContext,
aCpId,
&tabId);
}
return tabId;
}
/*static*/ void
ContentParent::DeallocateTabId(const TabId& aTabId,
const ContentParentId& aCpId)
{
if (XRE_GetProcessType() == GeckoProcessType_Default) {
ContentProcessManager::GetSingleton()->DeallocateTabId(aCpId,
aTabId);
}
else {
ContentChild::GetSingleton()->SendDeallocateTabId(aTabId);
}
}
bool
ContentParent::RecvAllocateTabId(const TabId& aOpenerTabId,
const IPCTabContext& aContext,
const ContentParentId& aCpId,
TabId* aTabId)
{
*aTabId = AllocateTabId(aOpenerTabId, aContext, aCpId);
if (!(*aTabId)) {
return false;
}
return true;
}
bool
ContentParent::RecvDeallocateTabId(const TabId& aTabId)
{
DeallocateTabId(aTabId, this->ChildID());
return true;
}
nsTArray<TabContext>
ContentParent::GetManagedTabContext()
{
return Move(ContentProcessManager::GetSingleton()->
GetTabContextByContentProcess(this->ChildID()));
}
} // 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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