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gecko-dev/dom/ipc/ContentChild.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 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/. */
#ifdef MOZ_WIDGET_GTK
#include <gtk/gtk.h>
#endif
#include "ContentChild.h"
#include "GeckoProfiler.h"
#include "TabChild.h"
#include "HandlerServiceChild.h"
#include "mozilla/Attributes.h"
#include "mozilla/BackgroundHangMonitor.h"
#include "mozilla/LookAndFeel.h"
#include "mozilla/NullPrincipal.h"
#include "mozilla/Preferences.h"
#include "mozilla/ProcessHangMonitorIPC.h"
#include "mozilla/RemoteDecoderManagerChild.h"
#include "mozilla/Unused.h"
#include "mozilla/StaticPrefs.h"
#include "mozilla/TelemetryIPC.h"
#include "mozilla/devtools/HeapSnapshotTempFileHelperChild.h"
#include "mozilla/docshell/OfflineCacheUpdateChild.h"
#include "mozilla/dom/ClientManager.h"
#include "mozilla/dom/ClientOpenWindowOpActors.h"
#include "mozilla/dom/ChildProcessMessageManager.h"
#include "mozilla/dom/ContentBridgeChild.h"
#include "mozilla/dom/ContentBridgeParent.h"
#include "mozilla/dom/ContentProcessMessageManager.h"
#include "mozilla/dom/DOMPrefs.h"
#include "mozilla/dom/VideoDecoderManagerChild.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/dom/DataTransfer.h"
#include "mozilla/dom/DocGroup.h"
#include "mozilla/dom/ExternalHelperAppChild.h"
#include "mozilla/dom/FileCreatorHelper.h"
#include "mozilla/dom/GetFilesHelper.h"
#include "mozilla/dom/IPCBlobUtils.h"
#include "mozilla/dom/MemoryReportRequest.h"
#include "mozilla/dom/PLoginReputationChild.h"
#include "mozilla/dom/PushNotifier.h"
#include "mozilla/dom/ServiceWorkerManager.h"
#include "mozilla/dom/TabGroup.h"
#include "mozilla/dom/nsIContentChild.h"
#include "mozilla/dom/URLClassifierChild.h"
#include "mozilla/dom/WorkerDebugger.h"
#include "mozilla/dom/WorkerDebuggerManager.h"
#include "mozilla/dom/ipc/SharedMap.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/gfx/Logging.h"
#include "mozilla/psm/PSMContentListener.h"
#include "mozilla/hal_sandbox/PHalChild.h"
#include "mozilla/ipc/BackgroundChild.h"
#include "mozilla/ipc/FileDescriptorSetChild.h"
#include "mozilla/ipc/FileDescriptorUtils.h"
#include "mozilla/ipc/GeckoChildProcessHost.h"
#include "mozilla/ipc/ProcessChild.h"
#include "mozilla/ipc/PChildToParentStreamChild.h"
#include "mozilla/intl/LocaleService.h"
#include "mozilla/ipc/TestShellChild.h"
#include "mozilla/jsipc/CrossProcessObjectWrappers.h"
#include "mozilla/jsipc/PJavaScript.h"
#include "mozilla/layers/APZChild.h"
#include "mozilla/layers/CompositorManagerChild.h"
#include "mozilla/layers/ContentProcessController.h"
#include "mozilla/layers/ImageBridgeChild.h"
#include "mozilla/loader/ScriptCacheActors.h"
#include "mozilla/net/NeckoChild.h"
#include "mozilla/net/CookieServiceChild.h"
#include "mozilla/net/CaptivePortalService.h"
#include "mozilla/PerformanceMetricsCollector.h"
#include "mozilla/PerformanceUtils.h"
#include "mozilla/plugins/PluginInstanceParent.h"
#include "mozilla/plugins/PluginModuleParent.h"
#include "mozilla/recordreplay/ParentIPC.h"
#include "mozilla/widget/ScreenManager.h"
#include "mozilla/widget/WidgetMessageUtils.h"
#include "nsBaseDragService.h"
#include "mozilla/media/MediaChild.h"
#include "mozilla/BasePrincipal.h"
#include "mozilla/WebBrowserPersistDocumentChild.h"
#include "mozilla/HangDetails.h"
#include "imgLoader.h"
#include "GMPServiceChild.h"
#include "nsISimpleEnumerator.h"
#include "nsIStringBundle.h"
#include "nsIWorkerDebuggerManager.h"
#include "nsGeolocation.h"
#if !defined(XP_WIN)
#include "mozilla/Omnijar.h"
#endif
#ifdef MOZ_GECKO_PROFILER
#include "ChildProfilerController.h"
#endif
#if defined(MOZ_CONTENT_SANDBOX)
#include "mozilla/SandboxSettings.h"
#if defined(XP_WIN)
#include "mozilla/sandboxTarget.h"
#elif defined(XP_LINUX)
#include "mozilla/Sandbox.h"
#include "mozilla/SandboxInfo.h"
#include "CubebUtils.h"
#elif defined(XP_MACOSX)
#include "mozilla/Sandbox.h"
#elif defined(__OpenBSD__)
#include <unistd.h>
#endif
#endif
#include "mozilla/Unused.h"
#include "mozInlineSpellChecker.h"
#include "nsDocShell.h"
#include "nsDocShellLoadState.h"
#include "nsIConsoleListener.h"
#include "nsIContentViewer.h"
#include "nsICycleCollectorListener.h"
#include "nsIIdlePeriod.h"
#include "nsIDragService.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIMemoryReporter.h"
#include "nsIMemoryInfoDumper.h"
#include "nsIMutable.h"
#include "nsIObserverService.h"
#include "nsIScriptSecurityManager.h"
#include "nsMemoryInfoDumper.h"
#include "nsServiceManagerUtils.h"
#include "nsStyleSheetService.h"
#include "nsVariant.h"
#include "nsXULAppAPI.h"
#include "nsIScriptError.h"
#include "nsIConsoleService.h"
#include "nsJSEnvironment.h"
#include "SandboxHal.h"
#include "nsDebugImpl.h"
#include "nsHashPropertyBag.h"
#include "nsLayoutStylesheetCache.h"
#include "nsThreadManager.h"
#include "nsAnonymousTemporaryFile.h"
#include "nsClipboardProxy.h"
#include "nsDirectoryService.h"
#include "nsDirectoryServiceUtils.h"
#include "nsDirectoryServiceDefs.h"
#include "nsContentPermissionHelper.h"
#include "nsPluginHost.h"
#ifdef NS_PRINTING
#include "nsPrintingProxy.h"
#endif
#include "nsWindowMemoryReporter.h"
#include "IHistory.h"
#include "nsNetUtil.h"
#include "base/message_loop.h"
#include "base/process_util.h"
#include "base/task.h"
#include "nsChromeRegistryContent.h"
#include "nsFrameMessageManager.h"
#include "nsIGeolocationProvider.h"
#include "mozilla/dom/PCycleCollectWithLogsChild.h"
#include "nsIScriptSecurityManager.h"
#include "mozilla/dom/BlobURLProtocolHandler.h"
#ifdef MOZ_WEBRTC
#include "signaling/src/peerconnection/WebrtcGlobalChild.h"
#endif
#include "nsPermission.h"
#include "nsPermissionManager.h"
#include "PermissionMessageUtils.h"
#if defined(MOZ_WIDGET_ANDROID)
#include "APKOpen.h"
#endif
#ifdef XP_WIN
#include <process.h>
#define getpid _getpid
#include "mozilla/widget/AudioSession.h"
#include "mozilla/audio/AudioNotificationReceiver.h"
#endif
#if defined(XP_MACOSX)
#include "nsMacUtilsImpl.h"
#include <CoreServices/CoreServices.h>
// Info.plist key associated with the developer repo path
#define MAC_DEV_REPO_KEY "MozillaDeveloperRepoPath"
// Info.plist key associated with the developer repo object directory
#define MAC_DEV_OBJ_KEY "MozillaDeveloperObjPath"
#endif /* XP_MACOSX */
#ifdef MOZ_X11
#include "mozilla/X11Util.h"
#endif
#ifdef ACCESSIBILITY
#include "nsAccessibilityService.h"
#ifdef XP_WIN
#include "mozilla/a11y/AccessibleWrap.h"
#endif
#endif
#include "mozilla/dom/File.h"
#include "mozilla/dom/PPresentationChild.h"
#include "mozilla/dom/PresentationIPCService.h"
#include "mozilla/ipc/InputStreamUtils.h"
#ifdef MOZ_WEBSPEECH
#include "mozilla/dom/PSpeechSynthesisChild.h"
#endif
#include "ClearOnShutdown.h"
#include "ProcessUtils.h"
#include "URIUtils.h"
#include "nsContentUtils.h"
#include "nsIPrincipal.h"
#include "DomainPolicy.h"
#include "mozilla/dom/ipc/StructuredCloneData.h"
#include "mozilla/ipc/CrashReporterClient.h"
#include "mozilla/net/NeckoMessageUtils.h"
#include "mozilla/widget/PuppetBidiKeyboard.h"
#include "mozilla/RemoteSpellCheckEngineChild.h"
#include "GMPServiceChild.h"
#include "GfxInfoBase.h"
#include "gfxPlatform.h"
#include "nscore.h" // for NS_FREE_PERMANENT_DATA
#include "VRManagerChild.h"
#include "private/pprio.h"
#include "nsString.h"
#ifdef MOZ_WIDGET_GTK
#include "nsAppRunner.h"
#endif
#ifdef MOZ_CODE_COVERAGE
#include "mozilla/CodeCoverageHandler.h"
#endif
using namespace mozilla;
using namespace mozilla::docshell;
using namespace mozilla::dom::ipc;
using namespace mozilla::media;
using namespace mozilla::embedding;
using namespace mozilla::gmp;
using namespace mozilla::hal_sandbox;
using namespace mozilla::ipc;
using namespace mozilla::intl;
using namespace mozilla::layers;
using namespace mozilla::layout;
using namespace mozilla::net;
using namespace mozilla::jsipc;
using namespace mozilla::psm;
using namespace mozilla::widget;
using mozilla::loader::PScriptCacheChild;
namespace mozilla {
namespace dom {
// IPC sender for remote GC/CC logging.
class CycleCollectWithLogsChild final
: public PCycleCollectWithLogsChild
, public nsICycleCollectorLogSink
{
public:
NS_DECL_ISUPPORTS
CycleCollectWithLogsChild(const FileDescriptor& aGCLog,
const FileDescriptor& aCCLog)
{
mGCLog = FileDescriptorToFILE(aGCLog, "w");
mCCLog = FileDescriptorToFILE(aCCLog, "w");
}
NS_IMETHOD Open(FILE** aGCLog, FILE** aCCLog) override
{
if (NS_WARN_IF(!mGCLog) || NS_WARN_IF(!mCCLog)) {
return NS_ERROR_FAILURE;
}
*aGCLog = mGCLog;
*aCCLog = mCCLog;
return NS_OK;
}
NS_IMETHOD CloseGCLog() override
{
MOZ_ASSERT(mGCLog);
fclose(mGCLog);
mGCLog = nullptr;
SendCloseGCLog();
return NS_OK;
}
NS_IMETHOD CloseCCLog() override
{
MOZ_ASSERT(mCCLog);
fclose(mCCLog);
mCCLog = nullptr;
SendCloseCCLog();
return NS_OK;
}
NS_IMETHOD GetFilenameIdentifier(nsAString& aIdentifier) override
{
return UnimplementedProperty();
}
NS_IMETHOD SetFilenameIdentifier(const nsAString& aIdentifier) override
{
return UnimplementedProperty();
}
NS_IMETHOD GetProcessIdentifier(int32_t *aIdentifier) override
{
return UnimplementedProperty();
}
NS_IMETHOD SetProcessIdentifier(int32_t aIdentifier) override
{
return UnimplementedProperty();
}
NS_IMETHOD GetGcLog(nsIFile** aPath) override
{
return UnimplementedProperty();
}
NS_IMETHOD GetCcLog(nsIFile** aPath) override
{
return UnimplementedProperty();
}
private:
~CycleCollectWithLogsChild() override
{
if (mGCLog) {
fclose(mGCLog);
mGCLog = nullptr;
}
if (mCCLog) {
fclose(mCCLog);
mCCLog = nullptr;
}
// The XPCOM refcount drives the IPC lifecycle; see also
// DeallocPCycleCollectWithLogsChild.
Unused << Send__delete__(this);
}
nsresult UnimplementedProperty()
{
MOZ_ASSERT(false, "This object is a remote GC/CC logger;"
" this property isn't meaningful.");
return NS_ERROR_UNEXPECTED;
}
FILE* mGCLog;
FILE* mCCLog;
};
NS_IMPL_ISUPPORTS(CycleCollectWithLogsChild, nsICycleCollectorLogSink);
class AlertObserver
{
public:
AlertObserver(nsIObserver *aObserver, const nsString& aData)
: mObserver(aObserver)
, mData(aData)
{
}
~AlertObserver() = default;
bool ShouldRemoveFrom(nsIObserver* aObserver,
const nsString& aData) const
{
return (mObserver == aObserver && mData == aData);
}
bool Observes(const nsString& aData) const
{
return mData.Equals(aData);
}
bool Notify(const nsCString& aType) const
{
mObserver->Observe(nullptr, aType.get(), mData.get());
return true;
}
private:
nsCOMPtr<nsIObserver> mObserver;
nsString mData;
};
class ConsoleListener final : public nsIConsoleListener
{
public:
explicit ConsoleListener(ContentChild* aChild)
: mChild(aChild) {}
NS_DECL_ISUPPORTS
NS_DECL_NSICONSOLELISTENER
private:
~ConsoleListener() = default;
ContentChild* mChild;
friend class ContentChild;
};
NS_IMPL_ISUPPORTS(ConsoleListener, nsIConsoleListener)
// Before we send the error to the parent process (which
// involves copying the memory), truncate any long lines. CSS
// errors in particular share the memory for long lines with
// repeated errors, but the IPC communication we're about to do
// will break that sharing, so we better truncate now.
static void
TruncateString(nsAString& aString)
{
if (aString.Length() > 1000) {
aString.Truncate(1000);
}
}
NS_IMETHODIMP
ConsoleListener::Observe(nsIConsoleMessage* aMessage)
{
if (!mChild) {
return NS_OK;
}
nsCOMPtr<nsIScriptError> scriptError = do_QueryInterface(aMessage);
if (scriptError) {
nsAutoString msg, sourceName, sourceLine;
nsCString category;
uint32_t lineNum, colNum, flags;
bool fromPrivateWindow;
nsresult rv = scriptError->GetErrorMessage(msg);
NS_ENSURE_SUCCESS(rv, rv);
TruncateString(msg);
rv = scriptError->GetSourceName(sourceName);
NS_ENSURE_SUCCESS(rv, rv);
TruncateString(sourceName);
rv = scriptError->GetSourceLine(sourceLine);
NS_ENSURE_SUCCESS(rv, rv);
TruncateString(sourceLine);
rv = scriptError->GetCategory(getter_Copies(category));
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetLineNumber(&lineNum);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetColumnNumber(&colNum);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetFlags(&flags);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetIsFromPrivateWindow(&fromPrivateWindow);
NS_ENSURE_SUCCESS(rv, rv);
{
AutoJSAPI jsapi;
jsapi.Init();
JSContext* cx = jsapi.cx();
JS::RootedValue stack(cx);
rv = scriptError->GetStack(&stack);
NS_ENSURE_SUCCESS(rv, rv);
if (stack.isObject()) {
// Because |stack| might be a cross-compartment wrapper, we can't use it
// with JSAutoRealm. Use the stackGlobal for that.
JS::RootedValue stackGlobal(cx);
rv = scriptError->GetStackGlobal(&stackGlobal);
NS_ENSURE_SUCCESS(rv, rv);
JSAutoRealm ar(cx, &stackGlobal.toObject());
StructuredCloneData data;
ErrorResult err;
data.Write(cx, stack, err);
if (err.Failed()) {
return err.StealNSResult();
}
ClonedMessageData cloned;
if (!data.BuildClonedMessageDataForChild(mChild, cloned)) {
return NS_ERROR_FAILURE;
}
mChild->SendScriptErrorWithStack(msg, sourceName, sourceLine,
lineNum, colNum, flags, category,
fromPrivateWindow, cloned);
return NS_OK;
}
}
mChild->SendScriptError(msg, sourceName, sourceLine,
lineNum, colNum, flags, category,
fromPrivateWindow);
return NS_OK;
}
nsString msg;
nsresult rv = aMessage->GetMessageMoz(msg);
NS_ENSURE_SUCCESS(rv, rv);
mChild->SendConsoleMessage(msg);
return NS_OK;
}
#ifdef NIGHTLY_BUILD
/**
* The singleton of this class is registered with the BackgroundHangMonitor as an
* annotator, so that the hang monitor can record whether or not there were
* pending input events when the thread hung.
*/
class PendingInputEventHangAnnotator final
: public BackgroundHangAnnotator
{
public:
virtual void AnnotateHang(BackgroundHangAnnotations& aAnnotations) override
{
int32_t pending = ContentChild::GetSingleton()->GetPendingInputEvents();
if (pending > 0) {
aAnnotations.AddAnnotation(NS_LITERAL_STRING("PendingInput"), pending);
}
}
static PendingInputEventHangAnnotator sSingleton;
};
PendingInputEventHangAnnotator PendingInputEventHangAnnotator::sSingleton;
#endif
class ContentChild::ShutdownCanary final
{ };
ContentChild* ContentChild::sSingleton;
StaticAutoPtr<ContentChild::ShutdownCanary> ContentChild::sShutdownCanary;
ContentChild::ContentChild()
: mID(uint64_t(-1))
#if defined(XP_WIN) && defined(ACCESSIBILITY)
, mMainChromeTid(0)
, mMsaaID(0)
#endif
, mIsForBrowser(false)
, mIsAlive(true)
, mShuttingDown(false)
{
// This process is a content process, so it's clearly running in
// multiprocess mode!
nsDebugImpl::SetMultiprocessMode("Child");
// When ContentChild is created, the observer service does not even exist.
// When ContentChild::RecvSetXPCOMProcessAttributes is called (the first
// IPDL call made on this object), shutdown may have already happened. Thus
// we create a canary here that relies upon getting cleared if shutdown
// happens without requiring the observer service at this time.
if (!sShutdownCanary) {
sShutdownCanary = new ShutdownCanary();
ClearOnShutdown(&sShutdownCanary, ShutdownPhase::Shutdown);
}
}
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4722) /* Silence "destructor never returns" warning */
#endif
ContentChild::~ContentChild()
{
#ifndef NS_FREE_PERMANENT_DATA
MOZ_CRASH("Content Child shouldn't be destroyed.");
#endif
}
#ifdef _MSC_VER
#pragma warning(pop)
#endif
NS_INTERFACE_MAP_BEGIN(ContentChild)
NS_INTERFACE_MAP_ENTRY(nsIContentChild)
NS_INTERFACE_MAP_ENTRY(nsIWindowProvider)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIContentChild)
NS_INTERFACE_MAP_END
mozilla::ipc::IPCResult
ContentChild::RecvSetXPCOMProcessAttributes(const XPCOMInitData& aXPCOMInit,
const StructuredCloneData& aInitialData,
nsTArray<LookAndFeelInt>&& aLookAndFeelIntCache,
nsTArray<SystemFontListEntry>&& aFontList)
{
if (!sShutdownCanary) {
return IPC_OK();
}
mLookAndFeelCache = std::move(aLookAndFeelIntCache);
mFontList = std::move(aFontList);
gfx::gfxVars::SetValuesForInitialize(aXPCOMInit.gfxNonDefaultVarUpdates());
InitXPCOM(aXPCOMInit, aInitialData);
InitGraphicsDeviceData(aXPCOMInit.contentDeviceData());
return IPC_OK();
}
bool
ContentChild::Init(MessageLoop* aIOLoop,
base::ProcessId aParentPid,
const char* aParentBuildID,
IPC::Channel* aChannel,
uint64_t aChildID,
bool aIsForBrowser)
{
#ifdef MOZ_WIDGET_GTK
// When running X11 only build we need to pass a display down
// to gtk_init because it's not going to use the one from the environment
// on its own when deciding which backend to use, and when starting under
// XWayland, it may choose to start with the wayland backend
// instead of the x11 backend.
// The DISPLAY environment variable is normally set by the parent process.
// The MOZ_GDK_DISPLAY environment variable is set from nsAppRunner.cpp
// when --display is set by the command line.
if (!gfxPlatform::IsHeadless()) {
const char* display_name = PR_GetEnv("MOZ_GDK_DISPLAY");
#ifndef MOZ_WAYLAND
if (!display_name) {
display_name = PR_GetEnv("DISPLAY");
}
#endif
if (display_name) {
int argc = 3;
char option_name[] = "--display";
char* argv[] = {
// argv0 is unused because g_set_prgname() was called in
// XRE_InitChildProcess().
nullptr,
option_name,
const_cast<char*>(display_name),
nullptr
};
char** argvp = argv;
gtk_init(&argc, &argvp);
} else {
gtk_init(nullptr, nullptr);
}
}
#endif
#ifdef MOZ_X11
if (!gfxPlatform::IsHeadless()) {
// Do this after initializing GDK, or GDK will install its own handler.
XRE_InstallX11ErrorHandler();
}
#endif
NS_ASSERTION(!sSingleton, "only one ContentChild per child");
// Once we start sending IPC messages, we need the thread manager to be
// initialized so we can deal with the responses. Do that here before we
// try to construct the crash reporter.
nsresult rv = nsThreadManager::get().Init();
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
// Middleman processes use a special channel for forwarding messages to
// their own children.
if (recordreplay::IsMiddleman()) {
SetMiddlemanIPCChannel(recordreplay::parent::ChannelToUIProcess());
}
if (!Open(aChannel, aParentPid, aIOLoop)) {
return false;
}
sSingleton = this;
// If communications with the parent have broken down, take the process
// down so it's not hanging around.
GetIPCChannel()->SetAbortOnError(true);
#if defined(XP_WIN) && defined(ACCESSIBILITY)
GetIPCChannel()->SetChannelFlags(MessageChannel::REQUIRE_A11Y_REENTRY);
#endif
// This must be checked before any IPDL message, which may hit sentinel
// errors due to parent and content processes having different
// versions.
MessageChannel* channel = GetIPCChannel();
if (channel && !channel->SendBuildIDsMatchMessage(aParentBuildID)) {
// We need to quit this process if the buildID doesn't match the parent's.
// This can occur when an update occurred in the background.
ProcessChild::QuickExit();
}
#ifdef MOZ_X11
if (!gfxPlatform::IsHeadless()) {
// Send the parent our X socket to act as a proxy reference for our X
// resources.
int xSocketFd = ConnectionNumber(DefaultXDisplay());
SendBackUpXResources(FileDescriptor(xSocketFd));
}
#endif
CrashReporterClient::InitSingleton(this);
mID = aChildID;
mIsForBrowser = aIsForBrowser;
#ifdef NS_PRINTING
// Force the creation of the nsPrintingProxy so that it's IPC counterpart,
// PrintingParent, is always available for printing initiated from the parent.
RefPtr<nsPrintingProxy> printingProxy = nsPrintingProxy::GetInstance();
#endif
SetProcessName(NS_LITERAL_STRING("Web Content"));
#ifdef NIGHTLY_BUILD
// NOTE: We have to register the annotator on the main thread, as annotators
// only affect a single thread.
SystemGroup::Dispatch(TaskCategory::Other,
NS_NewRunnableFunction("RegisterPendingInputEventHangAnnotator", [] {
BackgroundHangMonitor::RegisterAnnotator(
PendingInputEventHangAnnotator::sSingleton);
}));
#endif
return true;
}
void
ContentChild::SetProcessName(const nsAString& aName)
{
char* name;
if ((name = PR_GetEnv("MOZ_DEBUG_APP_PROCESS")) &&
aName.EqualsASCII(name)) {
#ifdef OS_POSIX
printf_stderr("\n\nCHILDCHILDCHILDCHILD\n [%s] debug me @%d\n\n", name,
getpid());
sleep(30);
#elif defined(OS_WIN)
// Windows has a decent JIT debugging story, so NS_DebugBreak does the
// right thing.
NS_DebugBreak(NS_DEBUG_BREAK,
"Invoking NS_DebugBreak() to debug child process",
nullptr, __FILE__, __LINE__);
#endif
}
mProcessName = aName;
mozilla::ipc::SetThisProcessName(NS_LossyConvertUTF16toASCII(aName).get());
}
NS_IMETHODIMP
ContentChild::ProvideWindow(mozIDOMWindowProxy* aParent,
uint32_t aChromeFlags,
bool aCalledFromJS,
bool aPositionSpecified,
bool aSizeSpecified,
nsIURI* aURI,
const nsAString& aName,
const nsACString& aFeatures,
bool aForceNoOpener,
nsDocShellLoadState* aLoadState,
bool* aWindowIsNew,
mozIDOMWindowProxy** aReturn)
{
return ProvideWindowCommon(nullptr, aParent, false, aChromeFlags,
aCalledFromJS, aPositionSpecified,
aSizeSpecified, aURI, aName, aFeatures,
aForceNoOpener, aLoadState, aWindowIsNew, aReturn);
}
static nsresult
GetCreateWindowParams(mozIDOMWindowProxy* aParent,
nsDocShellLoadState* aLoadState,
nsACString& aBaseURIString, float* aFullZoom,
uint32_t* aReferrerPolicy,
nsIPrincipal** aTriggeringPrincipal)
{
*aFullZoom = 1.0f;
if (!aTriggeringPrincipal) {
NS_ERROR("aTriggeringPrincipal is null");
return NS_ERROR_FAILURE;
}
auto* opener = nsPIDOMWindowOuter::From(aParent);
if (!opener) {
nsCOMPtr<nsIPrincipal> nullPrincipal =
NullPrincipal::CreateWithoutOriginAttributes();
NS_ADDREF(*aTriggeringPrincipal = nullPrincipal);
return NS_OK;
}
nsCOMPtr<nsIDocument> doc = opener->GetDoc();
NS_ADDREF(*aTriggeringPrincipal = doc->NodePrincipal());
nsCOMPtr<nsIURI> baseURI = doc->GetDocBaseURI();
if (!baseURI) {
NS_ERROR("nsIDocument didn't return a base URI");
return NS_ERROR_FAILURE;
}
baseURI->GetSpec(aBaseURIString);
if (aLoadState) {
if (!aLoadState->SendReferrer()) {
*aReferrerPolicy = mozilla::net::RP_No_Referrer;
} else {
*aReferrerPolicy = aLoadState->ReferrerPolicy();
}
}
RefPtr<nsDocShell> openerDocShell =
static_cast<nsDocShell*>(opener->GetDocShell());
if (!openerDocShell) {
return NS_OK;
}
nsCOMPtr<nsIContentViewer> cv;
nsresult rv = openerDocShell->GetContentViewer(getter_AddRefs(cv));
if (NS_SUCCEEDED(rv) && cv) {
cv->GetFullZoom(aFullZoom);
}
return NS_OK;
}
nsresult
ContentChild::ProvideWindowCommon(TabChild* aTabOpener,
mozIDOMWindowProxy* aParent,
bool aIframeMoz,
uint32_t aChromeFlags,
bool aCalledFromJS,
bool aPositionSpecified,
bool aSizeSpecified,
nsIURI* aURI,
const nsAString& aName,
const nsACString& aFeatures,
bool aForceNoOpener,
nsDocShellLoadState* aLoadState,
bool* aWindowIsNew,
mozIDOMWindowProxy** aReturn)
{
*aReturn = nullptr;
nsAutoPtr<IPCTabContext> ipcContext;
TabId openerTabId = TabId(0);
nsAutoCString features(aFeatures);
nsAutoString name(aName);
nsresult rv;
MOZ_ASSERT(!aParent || aTabOpener,
"If aParent is non-null, we should have an aTabOpener");
// Cache the boolean preference for allowing noopener windows to open in a
// separate process.
static bool sNoopenerNewProcess = false;
static bool sNoopenerNewProcessInited = false;
if (!sNoopenerNewProcessInited) {
Preferences::AddBoolVarCache(&sNoopenerNewProcess,
"dom.noopener.newprocess.enabled");
sNoopenerNewProcessInited = true;
}
// Check if we should load in a different process. We always want to load in a
// different process if we have noopener set, but we also might if we can't
// load in the current process.
bool loadInDifferentProcess = aForceNoOpener && sNoopenerNewProcess;
if (aTabOpener && !loadInDifferentProcess && aURI) {
nsCOMPtr<nsIWebBrowserChrome3> browserChrome3;
rv = aTabOpener->GetWebBrowserChrome(getter_AddRefs(browserChrome3));
if (NS_SUCCEEDED(rv) && browserChrome3) {
bool shouldLoad;
rv = browserChrome3->ShouldLoadURIInThisProcess(aURI, &shouldLoad);
loadInDifferentProcess = NS_SUCCEEDED(rv) && !shouldLoad;
}
}
// If we're in a content process and we have noopener set, there's no reason
// to load in our process, so let's load it elsewhere!
if (loadInDifferentProcess) {
nsAutoCString baseURIString;
float fullZoom;
nsCOMPtr<nsIPrincipal> triggeringPrincipal;
uint32_t referrerPolicy = mozilla::net::RP_Unset;
rv = GetCreateWindowParams(aParent, aLoadState, baseURIString, &fullZoom,
&referrerPolicy,
getter_AddRefs(triggeringPrincipal));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
OptionalURIParams uriToLoad;
SerializeURI(aURI, uriToLoad);
Unused << SendCreateWindowInDifferentProcess(aTabOpener,
aChromeFlags,
aCalledFromJS,
aPositionSpecified,
aSizeSpecified,
uriToLoad,
features,
baseURIString,
fullZoom,
name,
Principal(triggeringPrincipal),
referrerPolicy);
// We return NS_ERROR_ABORT, so that the caller knows that we've abandoned
// the window open as far as it is concerned.
return NS_ERROR_ABORT;
}
if (aTabOpener) {
PopupIPCTabContext context;
openerTabId = aTabOpener->GetTabId();
context.opener() = openerTabId;
context.isMozBrowserElement() = aTabOpener->IsMozBrowserElement();
ipcContext = new IPCTabContext(context);
} else {
// It's possible to not have a TabChild opener in the case
// of ServiceWorker::OpenWindow.
UnsafeIPCTabContext unsafeTabContext;
ipcContext = new IPCTabContext(unsafeTabContext);
}
MOZ_ASSERT(ipcContext);
TabId tabId(nsContentUtils::GenerateTabId());
// We need to assign a TabGroup to the PBrowser actor before we send it to the
// parent. Otherwise, the parent could send messages to us before we have a
// proper TabGroup for that actor.
RefPtr<TabGroup> tabGroup;
if (aTabOpener && !aForceNoOpener) {
// The new actor will use the same tab group as the opener.
tabGroup = aTabOpener->TabGroup();
} else {
tabGroup = new TabGroup();
}
TabContext newTabContext = aTabOpener ? *aTabOpener : TabContext();
RefPtr<TabChild> newChild = new TabChild(this, tabId, tabGroup,
newTabContext, aChromeFlags);
if (NS_FAILED(newChild->Init())) {
return NS_ERROR_ABORT;
}
if (aTabOpener) {
MOZ_ASSERT(ipcContext->type() == IPCTabContext::TPopupIPCTabContext);
ipcContext->get_PopupIPCTabContext().opener() = aTabOpener;
}
nsCOMPtr<nsIEventTarget> target = tabGroup->EventTargetFor(TaskCategory::Other);
SetEventTargetForActor(newChild, target);
Unused << SendPBrowserConstructor(
// We release this ref in DeallocPBrowserChild
RefPtr<TabChild>(newChild).forget().take(),
tabId, TabId(0), *ipcContext, aChromeFlags,
GetID(), IsForBrowser());
nsCOMPtr<nsPIDOMWindowInner> parentTopInnerWindow;
if (aParent) {
nsCOMPtr<nsPIDOMWindowOuter> parentTopWindow =
nsPIDOMWindowOuter::From(aParent)->GetTop();
if (parentTopWindow) {
parentTopInnerWindow = parentTopWindow->GetCurrentInnerWindow();
}
}
// Set to true when we're ready to return from this function.
bool ready = false;
// NOTE: Capturing by reference here is safe, as this function won't return
// until one of these callbacks is called.
auto resolve = [&] (const CreatedWindowInfo& info) {
MOZ_RELEASE_ASSERT(NS_IsMainThread());
rv = info.rv();
*aWindowIsNew = info.windowOpened();
nsTArray<FrameScriptInfo> frameScripts(info.frameScripts());
nsCString urlToLoad = info.urlToLoad();
uint32_t maxTouchPoints = info.maxTouchPoints();
DimensionInfo dimensionInfo = info.dimensions();
bool hasSiblings = info.hasSiblings();
// Once this function exits, we should try to exit the nested event loop.
ready = true;
// NOTE: We have to handle this immediately in the resolve callback in order
// to make sure that we don't process any more IPC messages before returning
// from ProvideWindowCommon.
// Handle the error which we got back from the parent process, if we got
// one.
if (NS_FAILED(rv)) {
return;
}
if (!*aWindowIsNew) {
rv = NS_ERROR_ABORT;
return;
}
// If the TabChild has been torn down, we don't need to do this anymore.
if (NS_WARN_IF(!newChild->IPCOpen() || newChild->IsDestroyed())) {
rv = NS_ERROR_ABORT;
return;
}
ShowInfo showInfo(EmptyString(), false, false, true, false, 0, 0, 0);
auto* opener = nsPIDOMWindowOuter::From(aParent);
nsIDocShell* openerShell;
if (opener && (openerShell = opener->GetDocShell())) {
nsCOMPtr<nsILoadContext> context = do_QueryInterface(openerShell);
showInfo = ShowInfo(EmptyString(), false,
context->UsePrivateBrowsing(), true, false,
aTabOpener->WebWidget()->GetDPI(),
aTabOpener->WebWidget()->RoundsWidgetCoordinatesTo(),
aTabOpener->WebWidget()->GetDefaultScale().scale);
}
newChild->SetMaxTouchPoints(maxTouchPoints);
newChild->SetHasSiblings(hasSiblings);
// Set the opener window for this window before we start loading the document
// inside of it. We have to do this before loading the remote scripts, because
// they can poke at the document and cause the nsDocument to be created before
// the openerwindow
nsCOMPtr<mozIDOMWindowProxy> windowProxy = do_GetInterface(newChild->WebNavigation());
if (!aForceNoOpener && windowProxy && aParent) {
nsPIDOMWindowOuter* outer = nsPIDOMWindowOuter::From(windowProxy);
nsPIDOMWindowOuter* parent = nsPIDOMWindowOuter::From(aParent);
outer->SetOpenerWindow(parent, *aWindowIsNew);
}
// Unfortunately we don't get a window unless we've shown the frame. That's
// pretty bogus; see bug 763602.
newChild->DoFakeShow(showInfo);
newChild->RecvUpdateDimensions(dimensionInfo);
for (size_t i = 0; i < frameScripts.Length(); i++) {
FrameScriptInfo& info = frameScripts[i];
if (!newChild->RecvLoadRemoteScript(info.url(), info.runInGlobalScope())) {
MOZ_CRASH();
}
}
if (!urlToLoad.IsEmpty()) {
newChild->RecvLoadURL(urlToLoad, showInfo);
}
nsCOMPtr<mozIDOMWindowProxy> win = do_GetInterface(newChild->WebNavigation());
win.forget(aReturn);
};
// NOTE: Capturing by reference here is safe, as this function won't return
// until one of these callbacks is called.
auto reject = [&] (ResponseRejectReason) {
MOZ_RELEASE_ASSERT(NS_IsMainThread());
NS_WARNING("windowCreated promise rejected");
rv = NS_ERROR_NOT_AVAILABLE;
ready = true;
};
// Send down the request to open the window.
if (aIframeMoz) {
MOZ_ASSERT(aTabOpener);
nsAutoCString url;
if (aURI) {
aURI->GetSpec(url);
} else {
// We can't actually send a nullptr up as the URI, since IPDL doesn't let us
// send nullptr's for primitives. We indicate that the nsString for the URI
// should be converted to a nullptr by voiding the string.
url.SetIsVoid(true);
}
// NOTE: BrowserFrameOpenWindowPromise is the same type as
// CreateWindowPromise, and this code depends on that fact.
newChild->SendBrowserFrameOpenWindow(aTabOpener,
NS_ConvertUTF8toUTF16(url),
name, NS_ConvertUTF8toUTF16(features),
std::move(resolve), std::move(reject));
} else {
nsAutoCString baseURIString;
float fullZoom;
nsCOMPtr<nsIPrincipal> triggeringPrincipal;
uint32_t referrerPolicy = mozilla::net::RP_Unset;
rv = GetCreateWindowParams(aParent, aLoadState, baseURIString, &fullZoom,
&referrerPolicy,
getter_AddRefs(triggeringPrincipal));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
OptionalURIParams uriToLoad;
if (aURI) {
SerializeURI(aURI, uriToLoad);
} else {
uriToLoad = mozilla::void_t();
}
SendCreateWindow(aTabOpener, newChild,
aChromeFlags, aCalledFromJS, aPositionSpecified,
aSizeSpecified, uriToLoad, features, baseURIString,
fullZoom, Principal(triggeringPrincipal), referrerPolicy,
std::move(resolve), std::move(reject));
}
// =======================
// Begin Nested Event Loop
// =======================
// We have to wait for a response from either SendCreateWindow or
// SendBrowserFrameOpenWindow with information we're going to need to return
// from this function, So we spin a nested event loop until they get back to
// us.
// Prevent the docshell from becoming active while the nested event loop is
// spinning.
newChild->AddPendingDocShellBlocker();
auto removePendingDocShellBlocker = MakeScopeExit([&] {
if (newChild) {
newChild->RemovePendingDocShellBlocker();
}
});
// Suspend our window if we have one to make sure we don't re-enter it.
if (parentTopInnerWindow) {
parentTopInnerWindow->Suspend();
}
{
AutoNoJSAPI nojsapi;
// Spin the event loop until we get a response. Callers of this function
// already have to guard against an inner event loop spinning in the
// non-e10s case because of the need to spin one to create a new chrome
// window.
SpinEventLoopUntil([&] () { return ready; });
MOZ_RELEASE_ASSERT(ready,
"We are on the main thread, so we should not exit this "
"loop without ready being true.");
}
if (parentTopInnerWindow) {
parentTopInnerWindow->Resume();
}
// =====================
// End Nested Event Loop
// =====================
// We should have the results already set by the callbacks.
MOZ_ASSERT_IF(NS_SUCCEEDED(rv), *aReturn);
return rv;
}
void
ContentChild::GetProcessName(nsAString& aName) const
{
aName.Assign(mProcessName);
}
bool
ContentChild::IsAlive() const
{
return mIsAlive;
}
bool
ContentChild::IsShuttingDown() const
{
return mShuttingDown;
}
void
ContentChild::GetProcessName(nsACString& aName) const
{
aName.Assign(NS_ConvertUTF16toUTF8(mProcessName));
}
/* static */ void
ContentChild::AppendProcessId(nsACString& aName)
{
if (!aName.IsEmpty()) {
aName.Append(' ');
}
unsigned pid = getpid();
aName.Append(nsPrintfCString("(pid %u)", pid));
}
void
ContentChild::InitGraphicsDeviceData(const ContentDeviceData& aData)
{
gfxPlatform::InitChild(aData);
}
void
ContentChild::InitXPCOM(const XPCOMInitData& aXPCOMInit,
const mozilla::dom::ipc::StructuredCloneData& aInitialData)
{
// Do this as early as possible to get the parent process to initialize the
// background thread since we'll likely need database information very soon.
BackgroundChild::Startup();
PBackgroundChild* actorChild = BackgroundChild::GetOrCreateForCurrentThread();
if (NS_WARN_IF(!actorChild)) {
MOZ_ASSERT_UNREACHABLE("PBackground init can't fail at this point");
return;
}
ClientManager::Startup();
nsCOMPtr<nsIConsoleService> svc(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
if (!svc) {
NS_WARNING("Couldn't acquire console service");
return;
}
mConsoleListener = new ConsoleListener(this);
if (NS_FAILED(svc->RegisterListener(mConsoleListener)))
NS_WARNING("Couldn't register console listener for child process");
mAvailableDictionaries = aXPCOMInit.dictionaries();
RecvSetOffline(aXPCOMInit.isOffline());
RecvSetConnectivity(aXPCOMInit.isConnected());
LocaleService::GetInstance()->AssignAppLocales(aXPCOMInit.appLocales());
LocaleService::GetInstance()->AssignRequestedLocales(aXPCOMInit.requestedLocales());
RecvSetCaptivePortalState(aXPCOMInit.captivePortalState());
RecvBidiKeyboardNotify(aXPCOMInit.isLangRTL(), aXPCOMInit.haveBidiKeyboards());
// Create the CPOW manager as soon as possible. Middleman processes don't use
// CPOWs, because their recording child will also have a CPOW manager that
// communicates with the UI process.
if (!recordreplay::IsMiddleman()) {
SendPJavaScriptConstructor();
}
if (aXPCOMInit.domainPolicy().active()) {
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
MOZ_ASSERT(ssm);
ssm->ActivateDomainPolicyInternal(getter_AddRefs(mPolicy));
if (!mPolicy) {
MOZ_CRASH("Failed to activate domain policy.");
}
mPolicy->ApplyClone(&aXPCOMInit.domainPolicy());
}
nsCOMPtr<nsIClipboard> clipboard(do_GetService("@mozilla.org/widget/clipboard;1"));
if (nsCOMPtr<nsIClipboardProxy> clipboardProxy = do_QueryInterface(clipboard)) {
clipboardProxy->SetCapabilities(aXPCOMInit.clipboardCaps());
}
{
AutoJSAPI jsapi;
if (NS_WARN_IF(!jsapi.Init(xpc::PrivilegedJunkScope()))) {
MOZ_CRASH();
}
ErrorResult rv;
JS::RootedValue data(jsapi.cx());
mozilla::dom::ipc::StructuredCloneData id;
id.Copy(aInitialData);
id.Read(jsapi.cx(), &data, rv);
if (NS_WARN_IF(rv.Failed())) {
MOZ_CRASH();
}
auto* global = ContentProcessMessageManager::Get();
global->SetInitialProcessData(data);
}
// The stylesheet cache is not ready yet. Store this URL for future use.
nsCOMPtr<nsIURI> ucsURL = DeserializeURI(aXPCOMInit.userContentSheetURL());
nsLayoutStylesheetCache::SetUserContentCSSURL(ucsURL);
GfxInfoBase::SetFeatureStatus(aXPCOMInit.gfxFeatureStatus());
DataStorage::SetCachedStorageEntries(aXPCOMInit.dataStorage());
// Set the dynamic scalar definitions for this process.
TelemetryIPC::AddDynamicScalarDefinitions(aXPCOMInit.dynamicScalarDefs());
DOMPrefs::Initialize();
}
mozilla::ipc::IPCResult
ContentChild::RecvRequestMemoryReport(const uint32_t& aGeneration,
const bool& aAnonymize,
const bool& aMinimizeMemoryUsage,
const MaybeFileDesc& aDMDFile)
{
nsCString process;
GetProcessName(process);
AppendProcessId(process);
MemoryReportRequestClient::Start(
aGeneration, aAnonymize, aMinimizeMemoryUsage, aDMDFile, process);
return IPC_OK();
}
PCycleCollectWithLogsChild*
ContentChild::AllocPCycleCollectWithLogsChild(const bool& aDumpAllTraces,
const FileDescriptor& aGCLog,
const FileDescriptor& aCCLog)
{
auto* actor = new CycleCollectWithLogsChild(aGCLog, aCCLog);
// Return actor with refcount 0, which is safe because it has a non-XPCOM type.
return actor;
}
mozilla::ipc::IPCResult
ContentChild::RecvPCycleCollectWithLogsConstructor(PCycleCollectWithLogsChild* aActor,
const bool& aDumpAllTraces,
const FileDescriptor& aGCLog,
const FileDescriptor& aCCLog)
{
// Take a reference here, where the XPCOM type is regained.
RefPtr<CycleCollectWithLogsChild> sink = static_cast<CycleCollectWithLogsChild*>(aActor);
nsCOMPtr<nsIMemoryInfoDumper> dumper = do_GetService("@mozilla.org/memory-info-dumper;1");
dumper->DumpGCAndCCLogsToSink(aDumpAllTraces, sink);
// The actor's destructor is called when the last reference goes away...
return IPC_OK();
}
bool
ContentChild::DeallocPCycleCollectWithLogsChild(PCycleCollectWithLogsChild* /* aActor */)
{
// ...so when we get here, there's nothing for us to do.
//
// Also, we're already in ~CycleCollectWithLogsChild (q.v.) at
// this point, so we shouldn't touch the actor in any case.
return true;
}
mozilla::ipc::IPCResult
ContentChild::RecvInitContentBridgeChild(Endpoint<PContentBridgeChild>&& aEndpoint)
{
ContentBridgeChild::Create(std::move(aEndpoint));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvInitGMPService(Endpoint<PGMPServiceChild>&& aGMPService)
{
if (!GMPServiceChild::Create(std::move(aGMPService))) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvInitProfiler(Endpoint<PProfilerChild>&& aEndpoint)
{
#ifdef MOZ_GECKO_PROFILER
mProfilerController = ChildProfilerController::Create(std::move(aEndpoint));
#endif
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvGMPsChanged(nsTArray<GMPCapabilityData>&& capabilities)
{
GeckoMediaPluginServiceChild::UpdateGMPCapabilities(std::move(capabilities));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvInitProcessHangMonitor(Endpoint<PProcessHangMonitorChild>&& aHangMonitor)
{
CreateHangMonitorChild(std::move(aHangMonitor));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::GetResultForRenderingInitFailure(base::ProcessId aOtherPid)
{
if (aOtherPid == base::GetCurrentProcId() || aOtherPid == OtherPid()) {
// If we are talking to ourselves, or the UI process, then that is a fatal
// protocol error.
return IPC_FAIL_NO_REASON(this);
}
// If we are talking to the GPU process, then we should recover from this on
// the next ContentChild::RecvReinitRendering call.
gfxCriticalNote << "Could not initialize rendering with GPU process";
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvRequestPerformanceMetrics(const nsID& aID)
{
MOZ_ASSERT(mozilla::StaticPrefs::dom_performance_enable_scheduler_timing());
nsTArray<PerformanceInfo> info;
CollectPerformanceInfo(info);
SendAddPerformanceMetrics(aID, info);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvInitRendering(Endpoint<PCompositorManagerChild>&& aCompositor,
Endpoint<PImageBridgeChild>&& aImageBridge,
Endpoint<PVRManagerChild>&& aVRBridge,
Endpoint<PVideoDecoderManagerChild>&& aVideoManager,
nsTArray<uint32_t>&& namespaces)
{
MOZ_ASSERT(namespaces.Length() == 3);
// Note that for all of the methods below, if it can fail, it should only
// return false if the failure is an IPDL error. In such situations,
// ContentChild can reason about whether or not to wait for
// RecvReinitRendering (because we surmised the GPU process crashed), or if it
// should crash itself (because we are actually talking to the UI process). If
// there are localized failures (e.g. failed to spawn a thread), then it
// should MOZ_RELEASE_ASSERT or MOZ_CRASH as necessary instead.
if (!CompositorManagerChild::Init(std::move(aCompositor), namespaces[0])) {
return GetResultForRenderingInitFailure(aCompositor.OtherPid());
}
if (!CompositorManagerChild::CreateContentCompositorBridge(namespaces[1])) {
return GetResultForRenderingInitFailure(aCompositor.OtherPid());
}
if (!ImageBridgeChild::InitForContent(std::move(aImageBridge), namespaces[2])) {
return GetResultForRenderingInitFailure(aImageBridge.OtherPid());
}
if (!gfx::VRManagerChild::InitForContent(std::move(aVRBridge))) {
return GetResultForRenderingInitFailure(aVRBridge.OtherPid());
}
VideoDecoderManagerChild::InitForContent(std::move(aVideoManager));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvReinitRendering(Endpoint<PCompositorManagerChild>&& aCompositor,
Endpoint<PImageBridgeChild>&& aImageBridge,
Endpoint<PVRManagerChild>&& aVRBridge,
Endpoint<PVideoDecoderManagerChild>&& aVideoManager,
nsTArray<uint32_t>&& namespaces)
{
MOZ_ASSERT(namespaces.Length() == 3);
nsTArray<RefPtr<TabChild>> tabs = TabChild::GetAll();
// Zap all the old layer managers we have lying around.
for (const auto& tabChild : tabs) {
if (tabChild->GetLayersId().IsValid()) {
tabChild->InvalidateLayers();
}
}
// Re-establish singleton bridges to the compositor.
if (!CompositorManagerChild::Init(std::move(aCompositor), namespaces[0])) {
return GetResultForRenderingInitFailure(aCompositor.OtherPid());
}
if (!CompositorManagerChild::CreateContentCompositorBridge(namespaces[1])) {
return GetResultForRenderingInitFailure(aCompositor.OtherPid());
}
if (!ImageBridgeChild::ReinitForContent(std::move(aImageBridge), namespaces[2])) {
return GetResultForRenderingInitFailure(aImageBridge.OtherPid());
}
if (!gfx::VRManagerChild::ReinitForContent(std::move(aVRBridge))) {
return GetResultForRenderingInitFailure(aVRBridge.OtherPid());
}
gfxPlatform::GetPlatform()->CompositorUpdated();
// Establish new PLayerTransactions.
for (const auto& tabChild : tabs) {
if (tabChild->GetLayersId().IsValid()) {
tabChild->ReinitRendering();
}
}
VideoDecoderManagerChild::InitForContent(std::move(aVideoManager));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvAudioDefaultDeviceChange()
{
#ifdef XP_WIN
audio::AudioNotificationReceiver::NotifyDefaultDeviceChanged();
#endif
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvReinitRenderingForDeviceReset()
{
gfxPlatform::GetPlatform()->CompositorUpdated();
nsTArray<RefPtr<TabChild>> tabs = TabChild::GetAll();
for (const auto& tabChild : tabs) {
if (tabChild->GetLayersId().IsValid()) {
tabChild->ReinitRenderingForDeviceReset();
}
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvInitRemoteDecoder(
Endpoint<PRemoteDecoderManagerChild>&& aRemoteManager)
{
RemoteDecoderManagerChild::InitForContent(std::move(aRemoteManager));
return IPC_OK();
}
#if defined(XP_MACOSX) && defined(MOZ_CONTENT_SANDBOX)
extern "C" {
CGError
CGSSetDenyWindowServerConnections(bool);
void CGSShutdownServerConnections();
};
static bool
StartMacOSContentSandbox()
{
int sandboxLevel = GetEffectiveContentSandboxLevel();
if (sandboxLevel < 1) {
return false;
}
// Close all current connections to the WindowServer. This ensures that the
// Activity Monitor will not label the content process as "Not responding"
// because it's not running a native event loop. See bug 1384336.
CGSShutdownServerConnections();
// Actual security benefits are only acheived when we additionally deny
// future connections, however this currently breaks WebGL so it's not done
// by default.
if (Preferences::GetBool(
"security.sandbox.content.mac.disconnect-windowserver")) {
CGError result = CGSSetDenyWindowServerConnections(true);
MOZ_DIAGNOSTIC_ASSERT(result == kCGErrorSuccess);
#if !MOZ_DIAGNOSTIC_ASSERT_ENABLED
Unused << result;
#endif
}
// If the sandbox is already enabled, there's nothing more to do here.
if (Preferences::GetBool("security.sandbox.content.mac.earlyinit") &&
!recordreplay::IsRecordingOrReplaying()) {
return true;
}
nsAutoCString appPath;
if (!nsMacUtilsImpl::GetAppPath(appPath)) {
MOZ_CRASH("Error resolving child process app path");
}
ContentChild* cc = ContentChild::GetSingleton();
nsresult rv;
nsCOMPtr<nsIFile> profileDir;
cc->GetProfileDir(getter_AddRefs(profileDir));
nsCString profileDirPath;
if (profileDir) {
profileDir->Normalize();
rv = profileDir->GetNativePath(profileDirPath);
if (NS_FAILED(rv) || profileDirPath.IsEmpty()) {
MOZ_CRASH("Failed to get profile path");
}
}
bool isFileProcess = cc->GetRemoteType().EqualsLiteral(FILE_REMOTE_TYPE);
MacSandboxInfo info;
info.type = MacSandboxType_Content;
info.level = sandboxLevel;
info.hasFilePrivileges = isFileProcess;
info.shouldLog = Preferences::GetBool("security.sandbox.logging.enabled") ||
PR_GetEnv("MOZ_SANDBOX_LOGGING");
info.appPath.assign(appPath.get());
info.hasAudio = !Preferences::GetBool("media.cubeb.sandbox");
info.hasWindowServer = !Preferences::GetBool(
"security.sandbox.content.mac.disconnect-windowserver");
// These paths are used to allowlist certain directories used by the testing
// system. They should not be considered a public API, and are only intended
// for use in automation.
nsAutoCString testingReadPath1;
Preferences::GetCString("security.sandbox.content.mac.testing_read_path1",
testingReadPath1);
if (!testingReadPath1.IsEmpty()) {
info.testingReadPath1.assign(testingReadPath1.get());
}
nsAutoCString testingReadPath2;
Preferences::GetCString("security.sandbox.content.mac.testing_read_path2",
testingReadPath2);
if (!testingReadPath2.IsEmpty()) {
info.testingReadPath2.assign(testingReadPath2.get());
}
if (mozilla::IsDevelopmentBuild()) {
nsCOMPtr<nsIFile> repoDir;
rv = mozilla::GetRepoDir(getter_AddRefs(repoDir));
if (NS_FAILED(rv)) {
MOZ_CRASH("Failed to get path to repo dir");
}
nsCString repoDirPath;
Unused << repoDir->GetNativePath(repoDirPath);
info.testingReadPath3.assign(repoDirPath.get());
nsCOMPtr<nsIFile> objDir;
rv = mozilla::GetObjDir(getter_AddRefs(objDir));
if (NS_FAILED(rv)) {
MOZ_CRASH("Failed to get path to build object dir");
}
nsCString objDirPath;
Unused << objDir->GetNativePath(objDirPath);
info.testingReadPath4.assign(objDirPath.get());
}
if (profileDir) {
info.hasSandboxedProfile = true;
info.profileDir.assign(profileDirPath.get());
} else {
info.hasSandboxedProfile = false;
}
#ifdef DEBUG
// When a content process dies intentionally (|NoteIntentionalCrash|), for
// tests it wants to log that it did this. Allow writing to this location
// that the testrunner wants.
char *bloatLog = PR_GetEnv("XPCOM_MEM_BLOAT_LOG");
if (bloatLog != nullptr) {
// |bloatLog| points to a specific file, but we actually write to a sibling
// of that path.
nsAutoCString bloatDirectoryPath =
nsMacUtilsImpl::GetDirectoryPath(bloatLog);
info.debugWriteDir.assign(bloatDirectoryPath.get());
}
#endif // DEBUG
std::string err;
if (!mozilla::StartMacSandbox(info, err)) {
NS_WARNING(err.c_str());
MOZ_CRASH("sandbox_init() failed");
}
return true;
}
#endif
mozilla::ipc::IPCResult
ContentChild::RecvSetProcessSandbox(const MaybeFileDesc& aBroker)
{
// We may want to move the sandbox initialization somewhere else
// at some point; see bug 880808.
#if defined(MOZ_CONTENT_SANDBOX)
bool sandboxEnabled = true;
#if defined(XP_LINUX)
// On Linux, we have to support systems that can't use any sandboxing.
if (!SandboxInfo::Get().CanSandboxContent()) {
sandboxEnabled = false;
} else {
// Pre-start audio before sandboxing; see bug 1443612.
if (!Preferences::GetBool("media.cubeb.sandbox")) {
Unused << CubebUtils::GetCubebContext();
}
}
if (sandboxEnabled) {
sandboxEnabled =
SetContentProcessSandbox(ContentProcessSandboxParams::ForThisProcess(aBroker));
}
#elif defined(XP_WIN)
mozilla::SandboxTarget::Instance()->StartSandbox();
#elif defined(XP_MACOSX)
sandboxEnabled = StartMacOSContentSandbox();
#elif defined(__OpenBSD__)
sandboxEnabled = StartOpenBSDSandbox(GeckoProcessType_Content);
/* dont overwrite an existing session dbus address, but ensure it is set */
if (!PR_GetEnv("DBUS_SESSION_BUS_ADDRESS")) {
static LazyLogModule sPledgeLog("SandboxPledge");
MOZ_LOG(sPledgeLog, LogLevel::Debug, ("no session dbus found, faking one\n"));
PR_SetEnv("DBUS_SESSION_BUS_ADDRESS=");
}
#endif
CrashReporter::AnnotateCrashReport(
CrashReporter::Annotation::ContentSandboxEnabled, sandboxEnabled);
#if defined(XP_LINUX) && !defined(OS_ANDROID)
CrashReporter::AnnotateCrashReport(
CrashReporter::Annotation::ContentSandboxCapabilities,
static_cast<int>(SandboxInfo::Get().AsInteger()));
#endif /* XP_LINUX && !OS_ANDROID */
CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::RemoteType,
NS_ConvertUTF16toUTF8(GetRemoteType()));
#endif /* MOZ_CONTENT_SANDBOX */
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvBidiKeyboardNotify(const bool& aIsLangRTL,
const bool& aHaveBidiKeyboards)
{
// bidi is always of type PuppetBidiKeyboard* (because in the child, the only
// possible implementation of nsIBidiKeyboard is PuppetBidiKeyboard).
PuppetBidiKeyboard* bidi = static_cast<PuppetBidiKeyboard*>(nsContentUtils::GetBidiKeyboard());
if (bidi) {
bidi->SetBidiKeyboardInfo(aIsLangRTL, aHaveBidiKeyboards);
}
return IPC_OK();
}
static StaticRefPtr<CancelableRunnable> gFirstIdleTask;
static void
FirstIdle(void)
{
MOZ_ASSERT(gFirstIdleTask);
gFirstIdleTask = nullptr;
// When recording or replaying, the middleman process will send this message instead.
if (!recordreplay::IsRecordingOrReplaying()) {
ContentChild::GetSingleton()->SendFirstIdle();
}
}
mozilla::jsipc::PJavaScriptChild *
ContentChild::AllocPJavaScriptChild()
{
MOZ_ASSERT(ManagedPJavaScriptChild().IsEmpty());
return nsIContentChild::AllocPJavaScriptChild();
}
bool
ContentChild::DeallocPJavaScriptChild(PJavaScriptChild *aChild)
{
return nsIContentChild::DeallocPJavaScriptChild(aChild);
}
PBrowserChild*
ContentChild::AllocPBrowserChild(const TabId& aTabId,
const TabId& aSameTabGroupAs,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpID,
const bool& aIsForBrowser)
{
return nsIContentChild::AllocPBrowserChild(aTabId,
aSameTabGroupAs,
aContext,
aChromeFlags,
aCpID,
aIsForBrowser);
}
bool
ContentChild::SendPBrowserConstructor(PBrowserChild* aActor,
const TabId& aTabId,
const TabId& aSameTabGroupAs,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpID,
const bool& aIsForBrowser)
{
if (IsShuttingDown()) {
return false;
}
return PContentChild::SendPBrowserConstructor(aActor,
aTabId,
aSameTabGroupAs,
aContext,
aChromeFlags,
aCpID,
aIsForBrowser);
}
mozilla::ipc::IPCResult
ContentChild::RecvPBrowserConstructor(PBrowserChild* aActor,
const TabId& aTabId,
const TabId& aSameTabGroupAs,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpID,
const bool& aIsForBrowser)
{
MOZ_ASSERT(!IsShuttingDown());
static bool hasRunOnce = false;
if (!hasRunOnce) {
hasRunOnce = true;
MOZ_ASSERT(!gFirstIdleTask);
RefPtr<CancelableRunnable> firstIdleTask = NewCancelableRunnableFunction("FirstIdleRunnable",
FirstIdle);
gFirstIdleTask = firstIdleTask;
if (NS_FAILED(NS_IdleDispatchToCurrentThread(firstIdleTask.forget()))) {
gFirstIdleTask = nullptr;
hasRunOnce = false;
}
}
return nsIContentChild::RecvPBrowserConstructor(aActor,
aTabId,
aSameTabGroupAs,
aContext,
aChromeFlags,
aCpID,
aIsForBrowser);
}
void
ContentChild::GetAvailableDictionaries(InfallibleTArray<nsString>& aDictionaries)
{
aDictionaries = mAvailableDictionaries;
}
PFileDescriptorSetChild*
ContentChild::SendPFileDescriptorSetConstructor(const FileDescriptor& aFD)
{
if (IsShuttingDown()) {
return nullptr;
}
return PContentChild::SendPFileDescriptorSetConstructor(aFD);
}
PFileDescriptorSetChild*
ContentChild::AllocPFileDescriptorSetChild(const FileDescriptor& aFD)
{
return nsIContentChild::AllocPFileDescriptorSetChild(aFD);
}
bool
ContentChild::DeallocPFileDescriptorSetChild(PFileDescriptorSetChild* aActor)
{
return nsIContentChild::DeallocPFileDescriptorSetChild(aActor);
}
bool
ContentChild::DeallocPBrowserChild(PBrowserChild* aIframe)
{
return nsIContentChild::DeallocPBrowserChild(aIframe);
}
PIPCBlobInputStreamChild*
ContentChild::AllocPIPCBlobInputStreamChild(const nsID& aID,
const uint64_t& aSize)
{
return nsIContentChild::AllocPIPCBlobInputStreamChild(aID, aSize);
}
bool
ContentChild::DeallocPIPCBlobInputStreamChild(PIPCBlobInputStreamChild* aActor)
{
return nsIContentChild::DeallocPIPCBlobInputStreamChild(aActor);
}
mozilla::PRemoteSpellcheckEngineChild *
ContentChild::AllocPRemoteSpellcheckEngineChild()
{
MOZ_CRASH("Default Constructor for PRemoteSpellcheckEngineChild should never be called");
return nullptr;
}
bool
ContentChild::DeallocPRemoteSpellcheckEngineChild(PRemoteSpellcheckEngineChild *child)
{
delete child;
return true;
}
PPresentationChild*
ContentChild::AllocPPresentationChild()
{
MOZ_CRASH("We should never be manually allocating PPresentationChild actors");
return nullptr;
}
bool
ContentChild::DeallocPPresentationChild(PPresentationChild* aActor)
{
delete aActor;
return true;
}
mozilla::ipc::IPCResult
ContentChild::RecvNotifyPresentationReceiverLaunched(PBrowserChild* aIframe,
const nsString& aSessionId)
{
nsCOMPtr<nsIDocShell> docShell =
do_GetInterface(static_cast<TabChild*>(aIframe)->WebNavigation());
NS_WARNING_ASSERTION(docShell, "WebNavigation failed");
nsCOMPtr<nsIPresentationService> service =
do_GetService(PRESENTATION_SERVICE_CONTRACTID);
NS_WARNING_ASSERTION(service, "presentation service is missing");
Unused << NS_WARN_IF(NS_FAILED(static_cast<PresentationIPCService*>(service.get())->MonitorResponderLoading(aSessionId, docShell)));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvNotifyPresentationReceiverCleanUp(const nsString& aSessionId)
{
nsCOMPtr<nsIPresentationService> service =
do_GetService(PRESENTATION_SERVICE_CONTRACTID);
NS_WARNING_ASSERTION(service, "presentation service is missing");
Unused << NS_WARN_IF(NS_FAILED(service->UntrackSessionInfo(aSessionId, nsIPresentationService::ROLE_RECEIVER)));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvNotifyEmptyHTTPCache()
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->NotifyObservers(nullptr, "cacheservice:empty-cache", nullptr);
return IPC_OK();
}
PHalChild*
ContentChild::AllocPHalChild()
{
return CreateHalChild();
}
bool
ContentChild::DeallocPHalChild(PHalChild* aHal)
{
delete aHal;
return true;
}
devtools::PHeapSnapshotTempFileHelperChild*
ContentChild::AllocPHeapSnapshotTempFileHelperChild()
{
return devtools::HeapSnapshotTempFileHelperChild::Create();
}
bool
ContentChild::DeallocPHeapSnapshotTempFileHelperChild(
devtools::PHeapSnapshotTempFileHelperChild* aHeapSnapshotHelper)
{
delete aHeapSnapshotHelper;
return true;
}
PTestShellChild*
ContentChild::AllocPTestShellChild()
{
return new TestShellChild();
}
bool
ContentChild::DeallocPTestShellChild(PTestShellChild* shell)
{
delete shell;
return true;
}
jsipc::CPOWManager*
ContentChild::GetCPOWManager()
{
if (PJavaScriptChild* c = LoneManagedOrNullAsserts(ManagedPJavaScriptChild())) {
return CPOWManagerFor(c);
}
if (recordreplay::IsMiddleman()) {
return nullptr;
}
return CPOWManagerFor(SendPJavaScriptConstructor());
}
mozilla::ipc::IPCResult
ContentChild::RecvPTestShellConstructor(PTestShellChild* actor)
{
return IPC_OK();
}
void
ContentChild::UpdateCookieStatus(nsIChannel *aChannel)
{
RefPtr<CookieServiceChild> csChild =
CookieServiceChild::GetSingleton();
NS_ASSERTION(csChild, "Couldn't get CookieServiceChild");
csChild->TrackCookieLoad(aChannel);
}
PScriptCacheChild*
ContentChild::AllocPScriptCacheChild(const FileDescOrError& cacheFile, const bool& wantCacheData)
{
return new loader::ScriptCacheChild();
}
bool
ContentChild::DeallocPScriptCacheChild(PScriptCacheChild* cache)
{
delete static_cast<loader::ScriptCacheChild*>(cache);
return true;
}
mozilla::ipc::IPCResult
ContentChild::RecvPScriptCacheConstructor(PScriptCacheChild* actor, const FileDescOrError& cacheFile, const bool& wantCacheData)
{
Maybe<FileDescriptor> fd;
if (cacheFile.type() == cacheFile.TFileDescriptor) {
fd.emplace(cacheFile.get_FileDescriptor());
}
static_cast<loader::ScriptCacheChild*>(actor)->Init(fd, wantCacheData);
return IPC_OK();
}
PNeckoChild*
ContentChild::AllocPNeckoChild()
{
return new NeckoChild();
}
bool
ContentChild::DeallocPNeckoChild(PNeckoChild* necko)
{
delete necko;
return true;
}
PPrintingChild*
ContentChild::AllocPPrintingChild()
{
// The ContentParent should never attempt to allocate the nsPrintingProxy,
// which implements PPrintingChild. Instead, the nsPrintingProxy service is
// requested and instantiated via XPCOM, and the constructor of
// nsPrintingProxy sets up the IPC connection.
MOZ_CRASH("Should never get here!");
return nullptr;
}
bool
ContentChild::DeallocPPrintingChild(PPrintingChild* printing)
{
return true;
}
PChildToParentStreamChild*
ContentChild::SendPChildToParentStreamConstructor(PChildToParentStreamChild* aActor)
{
if (IsShuttingDown()) {
return nullptr;
}
return PContentChild::SendPChildToParentStreamConstructor(aActor);
}
PChildToParentStreamChild*
ContentChild::AllocPChildToParentStreamChild()
{
return nsIContentChild::AllocPChildToParentStreamChild();
}
bool
ContentChild::DeallocPChildToParentStreamChild(PChildToParentStreamChild* aActor)
{
return nsIContentChild::DeallocPChildToParentStreamChild(aActor);
}
PParentToChildStreamChild*
ContentChild::AllocPParentToChildStreamChild()
{
return nsIContentChild::AllocPParentToChildStreamChild();
}
bool
ContentChild::DeallocPParentToChildStreamChild(PParentToChildStreamChild* aActor)
{
return nsIContentChild::DeallocPParentToChildStreamChild(aActor);
}
PPSMContentDownloaderChild*
ContentChild::AllocPPSMContentDownloaderChild(const uint32_t& aCertType)
{
// NB: We don't need aCertType in the child actor.
RefPtr<PSMContentDownloaderChild> child = new PSMContentDownloaderChild();
return child.forget().take();
}
bool
ContentChild::DeallocPPSMContentDownloaderChild(PPSMContentDownloaderChild* aListener)
{
auto* listener = static_cast<PSMContentDownloaderChild*>(aListener);
RefPtr<PSMContentDownloaderChild> child = dont_AddRef(listener);
return true;
}
PExternalHelperAppChild*
ContentChild::AllocPExternalHelperAppChild(const OptionalURIParams& uri,
const nsCString& aMimeContentType,
const nsCString& aContentDisposition,
const uint32_t& aContentDispositionHint,
const nsString& aContentDispositionFilename,
const bool& aForceSave,
const int64_t& aContentLength,
const bool& aWasFileChannel,
const OptionalURIParams& aReferrer,
PBrowserChild* aBrowser)
{
auto *child = new ExternalHelperAppChild();
child->AddRef();
return child;
}
bool
ContentChild::DeallocPExternalHelperAppChild(PExternalHelperAppChild* aService)
{
ExternalHelperAppChild *child = static_cast<ExternalHelperAppChild*>(aService);
child->Release();
return true;
}
PHandlerServiceChild*
ContentChild::AllocPHandlerServiceChild()
{
auto* actor = new HandlerServiceChild();
actor->AddRef();
return actor;
}
bool ContentChild::DeallocPHandlerServiceChild(PHandlerServiceChild* aHandlerServiceChild)
{
static_cast<HandlerServiceChild*>(aHandlerServiceChild)->Release();
return true;
}
media::PMediaChild*
ContentChild::AllocPMediaChild()
{
return media::AllocPMediaChild();
}
bool
ContentChild::DeallocPMediaChild(media::PMediaChild *aActor)
{
return media::DeallocPMediaChild(aActor);
}
PSpeechSynthesisChild*
ContentChild::AllocPSpeechSynthesisChild()
{
#ifdef MOZ_WEBSPEECH
MOZ_CRASH("No one should be allocating PSpeechSynthesisChild actors");
#else
return nullptr;
#endif
}
bool
ContentChild::DeallocPSpeechSynthesisChild(PSpeechSynthesisChild* aActor)
{
#ifdef MOZ_WEBSPEECH
delete aActor;
return true;
#else
return false;
#endif
}
PWebrtcGlobalChild *
ContentChild::AllocPWebrtcGlobalChild()
{
#ifdef MOZ_WEBRTC
auto *child = new WebrtcGlobalChild();
return child;
#else
return nullptr;
#endif
}
bool
ContentChild::DeallocPWebrtcGlobalChild(PWebrtcGlobalChild *aActor)
{
#ifdef MOZ_WEBRTC
delete static_cast<WebrtcGlobalChild*>(aActor);
return true;
#else
return false;
#endif
}
mozilla::ipc::IPCResult
ContentChild::RecvRegisterChrome(InfallibleTArray<ChromePackage>&& packages,
InfallibleTArray<SubstitutionMapping>&& resources,
InfallibleTArray<OverrideMapping>&& overrides,
const nsCString& locale,
const bool& reset)
{
nsCOMPtr<nsIChromeRegistry> registrySvc = nsChromeRegistry::GetService();
nsChromeRegistryContent* chromeRegistry =
static_cast<nsChromeRegistryContent*>(registrySvc.get());
if (!chromeRegistry) {
return IPC_FAIL(this, "ChromeRegistryContent is null!");
}
chromeRegistry->RegisterRemoteChrome(packages, resources, overrides,
locale, reset);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvRegisterChromeItem(const ChromeRegistryItem& item)
{
nsCOMPtr<nsIChromeRegistry> registrySvc = nsChromeRegistry::GetService();
nsChromeRegistryContent* chromeRegistry =
static_cast<nsChromeRegistryContent*>(registrySvc.get());
if (!chromeRegistry) {
return IPC_FAIL(this, "ChromeRegistryContent is null!");
}
switch (item.type()) {
case ChromeRegistryItem::TChromePackage:
chromeRegistry->RegisterPackage(item.get_ChromePackage());
break;
case ChromeRegistryItem::TOverrideMapping:
chromeRegistry->RegisterOverride(item.get_OverrideMapping());
break;
case ChromeRegistryItem::TSubstitutionMapping:
chromeRegistry->RegisterSubstitution(item.get_SubstitutionMapping());
break;
default:
MOZ_ASSERT(false, "bad chrome item");
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvClearImageCache(const bool& privateLoader, const bool& chrome)
{
imgLoader* loader = privateLoader ? imgLoader::PrivateBrowsingLoader() :
imgLoader::NormalLoader();
loader->ClearCache(chrome);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvSetOffline(const bool& offline)
{
nsCOMPtr<nsIIOService> io (do_GetIOService());
NS_ASSERTION(io, "IO Service can not be null");
io->SetOffline(offline);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvSetConnectivity(const bool& connectivity)
{
nsCOMPtr<nsIIOService> io(do_GetIOService());
nsCOMPtr<nsIIOServiceInternal> ioInternal(do_QueryInterface(io));
NS_ASSERTION(ioInternal, "IO Service can not be null");
ioInternal->SetConnectivity(connectivity);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvSetCaptivePortalState(const int32_t& aState)
{
nsCOMPtr<nsICaptivePortalService> cps = do_GetService(NS_CAPTIVEPORTAL_CID);
if (!cps) {
return IPC_OK();
}
mozilla::net::CaptivePortalService *portal =
static_cast<mozilla::net::CaptivePortalService*>(cps.get());
portal->SetStateInChild(aState);
return IPC_OK();
}
void
ContentChild::ActorDestroy(ActorDestroyReason why)
{
if (mForceKillTimer) {
mForceKillTimer->Cancel();
mForceKillTimer = nullptr;
}
if (AbnormalShutdown == why) {
NS_WARNING("shutting down early because of crash!");
ProcessChild::QuickExit();
}
#ifndef NS_FREE_PERMANENT_DATA
// In release builds, there's no point in the content process
// going through the full XPCOM shutdown path, because it doesn't
// keep persistent state.
ProcessChild::QuickExit();
#else
if (gFirstIdleTask) {
gFirstIdleTask->Cancel();
gFirstIdleTask = nullptr;
}
BlobURLProtocolHandler::RemoveDataEntries();
mSharedData = nullptr;
mAlertObservers.Clear();
mIdleObservers.Clear();
nsCOMPtr<nsIConsoleService> svc(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
if (svc) {
svc->UnregisterListener(mConsoleListener);
mConsoleListener->mChild = nullptr;
}
mIsAlive = false;
CrashReporterClient::DestroySingleton();
XRE_ShutdownChildProcess();
#endif // NS_FREE_PERMANENT_DATA
}
void
ContentChild::ProcessingError(Result aCode, const char* aReason)
{
switch (aCode) {
case MsgDropped:
NS_WARNING("MsgDropped in ContentChild");
return;
case MsgNotKnown:
case MsgNotAllowed:
case MsgPayloadError:
case MsgProcessingError:
case MsgRouteError:
case MsgValueError:
break;
default:
MOZ_CRASH("not reached");
}
nsDependentCString reason(aReason);
CrashReporter::AnnotateCrashReport(
CrashReporter::Annotation::ipc_channel_error, reason);
MOZ_CRASH("Content child abort due to IPC error");
}
nsresult
ContentChild::AddRemoteAlertObserver(const nsString& aData,
nsIObserver* aObserver)
{
NS_ASSERTION(aObserver, "Adding a null observer?");
mAlertObservers.AppendElement(new AlertObserver(aObserver, aData));
return NS_OK;
}
mozilla::ipc::IPCResult
ContentChild::RecvPreferenceUpdate(const Pref& aPref)
{
Preferences::SetPreference(aPref);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvVarUpdate(const GfxVarUpdate& aVar)
{
gfx::gfxVars::ApplyUpdate(aVar);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvDataStoragePut(const nsString& aFilename,
const DataStorageItem& aItem)
{
RefPtr<DataStorage> storage = DataStorage::GetFromRawFileName(aFilename);
if (storage) {
storage->Put(aItem.key(), aItem.value(), aItem.type());
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvDataStorageRemove(const nsString& aFilename,
const nsCString& aKey,
const DataStorageType& aType)
{
RefPtr<DataStorage> storage = DataStorage::GetFromRawFileName(aFilename);
if (storage) {
storage->Remove(aKey, aType);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvDataStorageClear(const nsString& aFilename)
{
RefPtr<DataStorage> storage = DataStorage::GetFromRawFileName(aFilename);
if (storage) {
storage->Clear();
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvNotifyAlertsObserver(const nsCString& aType, const nsString& aData)
{
for (uint32_t i = 0; i < mAlertObservers.Length();
/*we mutate the array during the loop; ++i iff no mutation*/) {
AlertObserver* observer = mAlertObservers[i];
if (observer->Observes(aData) && observer->Notify(aType)) {
// if aType == alertfinished, this alert is done. we can
// remove the observer.
if (aType.Equals(nsDependentCString("alertfinished"))) {
mAlertObservers.RemoveElementAt(i);
continue;
}
}
++i;
}
return IPC_OK();
}
// NOTE: This method is being run in the SystemGroup, and thus cannot directly
// touch pages. See GetSpecificMessageEventTarget.
mozilla::ipc::IPCResult
ContentChild::RecvNotifyVisited(nsTArray<URIParams>&& aURIs)
{
for (const URIParams& uri : aURIs) {
nsCOMPtr<nsIURI> newURI = DeserializeURI(uri);
if (!newURI) {
return IPC_FAIL_NO_REASON(this);
}
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->NotifyVisited(newURI);
}
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvLoadProcessScript(const nsString& aURL)
{
auto* global = ContentProcessMessageManager::Get();
global->LoadScript(aURL);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvAsyncMessage(const nsString& aMsg,
InfallibleTArray<CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal,
const ClonedMessageData& aData)
{
AUTO_PROFILER_LABEL_DYNAMIC_LOSSY_NSSTRING(
"ContentChild::RecvAsyncMessage", OTHER, aMsg);
CrossProcessCpowHolder cpows(this, aCpows);
RefPtr<nsFrameMessageManager> cpm =
nsFrameMessageManager::GetChildProcessManager();
if (cpm) {
StructuredCloneData data;
ipc::UnpackClonedMessageDataForChild(aData, data);
cpm->ReceiveMessage(cpm, nullptr, aMsg, false, &data, &cpows, aPrincipal, nullptr,
IgnoreErrors());
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvRegisterStringBundles(nsTArray<mozilla::dom::StringBundleDescriptor>&& aDescriptors)
{
nsCOMPtr<nsIStringBundleService> stringBundleService =
services::GetStringBundleService();
for (auto& descriptor : aDescriptors) {
stringBundleService->RegisterContentBundle(descriptor.bundleURL(), descriptor.mapFile(),
descriptor.mapSize());
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvUpdateSharedData(const FileDescriptor& aMapFile,
const uint32_t& aMapSize,
nsTArray<IPCBlob>&& aBlobs,
nsTArray<nsCString>&& aChangedKeys)
{
nsTArray<RefPtr<BlobImpl>> blobImpls(aBlobs.Length());
for (auto& ipcBlob : aBlobs) {
blobImpls.AppendElement(IPCBlobUtils::Deserialize(ipcBlob));
}
if (mSharedData) {
mSharedData->Update(aMapFile, aMapSize,
std::move(blobImpls),
std::move(aChangedKeys));
} else {
mSharedData = new SharedMap(ContentProcessMessageManager::Get()->GetParentObject(),
aMapFile, aMapSize, std::move(blobImpls));
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvGeolocationUpdate(nsIDOMGeoPosition* aPosition)
{
RefPtr<nsGeolocationService> gs =
nsGeolocationService::GetGeolocationService();
if (!gs) {
return IPC_OK();
}
gs->Update(aPosition);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvGeolocationError(const uint16_t& errorCode)
{
RefPtr<nsGeolocationService> gs =
nsGeolocationService::GetGeolocationService();
if (!gs) {
return IPC_OK();
}
gs->NotifyError(errorCode);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvUpdateDictionaryList(InfallibleTArray<nsString>&& aDictionaries)
{
mAvailableDictionaries = aDictionaries;
mozInlineSpellChecker::UpdateCanEnableInlineSpellChecking();
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvUpdateFontList(InfallibleTArray<SystemFontListEntry>&& aFontList)
{
mFontList = std::move(aFontList);
gfxPlatform::GetPlatform()->UpdateFontList();
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvUpdateAppLocales(nsTArray<nsCString>&& aAppLocales)
{
LocaleService::GetInstance()->AssignAppLocales(aAppLocales);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvUpdateRequestedLocales(nsTArray<nsCString>&& aRequestedLocales)
{
LocaleService::GetInstance()->AssignRequestedLocales(aRequestedLocales);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvClearSiteDataReloadNeeded(const nsString& aOrigin)
{
// Rebroadcast "clear-site-data-reload-needed".
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->NotifyObservers(nullptr, "clear-site-data-reload-needed",
aOrigin.get());
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvAddPermission(const IPC::Permission& permission)
{
nsCOMPtr<nsIPermissionManager> permissionManagerIface =
services::GetPermissionManager();
nsPermissionManager* permissionManager =
static_cast<nsPermissionManager*>(permissionManagerIface.get());
MOZ_ASSERT(permissionManager,
"We have no permissionManager in the Content process !");
// note we do not need to force mUserContextId to the default here because
// the permission manager does that internally.
nsAutoCString originNoSuffix;
OriginAttributes attrs;
bool success = attrs.PopulateFromOrigin(permission.origin, originNoSuffix);
NS_ENSURE_TRUE(success, IPC_FAIL_NO_REASON(this));
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), originNoSuffix);
NS_ENSURE_SUCCESS(rv, IPC_OK());
nsCOMPtr<nsIPrincipal> principal = mozilla::BasePrincipal::CreateCodebasePrincipal(uri, attrs);
// child processes don't care about modification time.
int64_t modificationTime = 0;
permissionManager->AddInternal(principal,
nsCString(permission.type),
permission.capability,
0,
permission.expireType,
permission.expireTime,
modificationTime,
nsPermissionManager::eNotify,
nsPermissionManager::eNoDBOperation);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvRemoveAllPermissions()
{
nsCOMPtr<nsIPermissionManager> permissionManagerIface =
services::GetPermissionManager();
nsPermissionManager* permissionManager =
static_cast<nsPermissionManager*>(permissionManagerIface.get());
MOZ_ASSERT(permissionManager,
"We have no permissionManager in the Content process !");
permissionManager->RemoveAllFromIPC();
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvFlushMemory(const nsString& reason)
{
nsCOMPtr<nsIObserverService> os =
mozilla::services::GetObserverService();
if (os) {
os->NotifyObservers(nullptr, "memory-pressure", reason.get());
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvActivateA11y(const uint32_t& aMainChromeTid,
const uint32_t& aMsaaID)
{
#ifdef ACCESSIBILITY
#ifdef XP_WIN
MOZ_ASSERT(aMainChromeTid != 0);
mMainChromeTid = aMainChromeTid;
MOZ_ASSERT(aMsaaID != 0);
mMsaaID = aMsaaID;
#endif // XP_WIN
// Start accessibility in content process if it's running in chrome
// process.
GetOrCreateAccService(nsAccessibilityService::eMainProcess);
#endif // ACCESSIBILITY
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvShutdownA11y()
{
#ifdef ACCESSIBILITY
// Try to shutdown accessibility in content process if it's shutting down in
// chrome process.
MaybeShutdownAccService(nsAccessibilityService::eMainProcess);
#endif
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvGarbageCollect()
{
// Rebroadcast the "child-gc-request" so that workers will GC.
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->NotifyObservers(nullptr, "child-gc-request", nullptr);
}
nsJSContext::GarbageCollectNow(JS::gcreason::DOM_IPC);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvCycleCollect()
{
// Rebroadcast the "child-cc-request" so that workers will CC.
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->NotifyObservers(nullptr, "child-cc-request", nullptr);
}
nsJSContext::CycleCollectNow();
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvUnlinkGhosts()
{
#ifdef DEBUG
nsWindowMemoryReporter::UnlinkGhostWindows();
#endif
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvAppInfo(const nsCString& version, const nsCString& buildID,
const nsCString& name, const nsCString& UAName,
const nsCString& ID, const nsCString& vendor,
const nsCString& sourceURL)
{
mAppInfo.version.Assign(version);
mAppInfo.buildID.Assign(buildID);
mAppInfo.name.Assign(name);
mAppInfo.UAName.Assign(UAName);
mAppInfo.ID.Assign(ID);
mAppInfo.vendor.Assign(vendor);
mAppInfo.sourceURL.Assign(sourceURL);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvRemoteType(const nsString& aRemoteType)
{
MOZ_ASSERT(DOMStringIsNull(mRemoteType));
mRemoteType.Assign(aRemoteType);
// For non-default ("web") types, update the process name so about:memory's
// process names are more obvious.
if (aRemoteType.EqualsLiteral(FILE_REMOTE_TYPE)) {
SetProcessName(NS_LITERAL_STRING("file:// Content"));
} else if (aRemoteType.EqualsLiteral(EXTENSION_REMOTE_TYPE)) {
SetProcessName(NS_LITERAL_STRING("WebExtensions"));
} else if (aRemoteType.EqualsLiteral(PRIVILEGED_REMOTE_TYPE)) {
SetProcessName(NS_LITERAL_STRING("Privileged Content"));
} else if (aRemoteType.EqualsLiteral(LARGE_ALLOCATION_REMOTE_TYPE)) {
SetProcessName(NS_LITERAL_STRING("Large Allocation Web Content"));
}
return IPC_OK();
}
const nsAString&
ContentChild::GetRemoteType() const
{
return mRemoteType;
}
mozilla::ipc::IPCResult
ContentChild::RecvInitServiceWorkers(const ServiceWorkerConfiguration& aConfig)
{
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
if (!swm) {
// browser shutdown began
return IPC_OK();
}
swm->LoadRegistrations(aConfig.serviceWorkerRegistrations());
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvInitBlobURLs(nsTArray<BlobURLRegistrationData>&& aRegistrations)
{
for (uint32_t i = 0; i < aRegistrations.Length(); ++i) {
BlobURLRegistrationData& registration = aRegistrations[i];
RefPtr<BlobImpl> blobImpl = IPCBlobUtils::Deserialize(registration.blob());
MOZ_ASSERT(blobImpl);
BlobURLProtocolHandler::AddDataEntry(registration.url(),
registration.principal(),
blobImpl);
// If we have received an already-revoked blobURL, we have to keep it alive
// for a while (see BlobURLProtocolHandler) in order to support pending
// operations such as navigation, download and so on.
if (registration.revoked()) {
BlobURLProtocolHandler::RemoveDataEntry(registration.url(), false);
}
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvLastPrivateDocShellDestroyed()
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->NotifyObservers(nullptr, "last-pb-context-exited", nullptr);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvNotifyProcessPriorityChanged(
const hal::ProcessPriority& aPriority)
{
nsCOMPtr<nsIObserverService> os = services::GetObserverService();
NS_ENSURE_TRUE(os, IPC_OK());
RefPtr<nsHashPropertyBag> props = new nsHashPropertyBag();
props->SetPropertyAsInt32(NS_LITERAL_STRING("priority"),
static_cast<int32_t>(aPriority));
os->NotifyObservers(static_cast<nsIPropertyBag2*>(props),
"ipc:process-priority-changed", nullptr);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvMinimizeMemoryUsage()
{
nsCOMPtr<nsIMemoryReporterManager> mgr =
do_GetService("@mozilla.org/memory-reporter-manager;1");
NS_ENSURE_TRUE(mgr, IPC_OK());
Unused << mgr->MinimizeMemoryUsage(/* callback = */ nullptr);
return IPC_OK();
}
void
ContentChild::AddIdleObserver(nsIObserver* aObserver, uint32_t aIdleTimeInS)
{
MOZ_ASSERT(aObserver, "null idle observer");
// Make sure aObserver isn't released while we wait for the parent
aObserver->AddRef();
SendAddIdleObserver(reinterpret_cast<uint64_t>(aObserver), aIdleTimeInS);
mIdleObservers.PutEntry(aObserver);
}
void
ContentChild::RemoveIdleObserver(nsIObserver* aObserver, uint32_t aIdleTimeInS)
{
MOZ_ASSERT(aObserver, "null idle observer");
SendRemoveIdleObserver(reinterpret_cast<uint64_t>(aObserver), aIdleTimeInS);
aObserver->Release();
mIdleObservers.RemoveEntry(aObserver);
}
mozilla::ipc::IPCResult
ContentChild::RecvNotifyIdleObserver(const uint64_t& aObserver,
const nsCString& aTopic,
const nsString& aTimeStr)
{
nsIObserver* observer = reinterpret_cast<nsIObserver*>(aObserver);
if (mIdleObservers.Contains(observer)) {
observer->Observe(nullptr, aTopic.get(), aTimeStr.get());
} else {
NS_WARNING("Received notification for an idle observer that was removed.");
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvLoadAndRegisterSheet(const URIParams& aURI, const uint32_t& aType)
{
nsCOMPtr<nsIURI> uri = DeserializeURI(aURI);
if (!uri) {
return IPC_OK();
}
nsStyleSheetService *sheetService = nsStyleSheetService::GetInstance();
if (sheetService) {
sheetService->LoadAndRegisterSheet(uri, aType);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvUnregisterSheet(const URIParams& aURI, const uint32_t& aType)
{
nsCOMPtr<nsIURI> uri = DeserializeURI(aURI);
if (!uri) {
return IPC_OK();
}
nsStyleSheetService *sheetService = nsStyleSheetService::GetInstance();
if (sheetService) {
sheetService->UnregisterSheet(uri, aType);
}
return IPC_OK();
}
POfflineCacheUpdateChild*
ContentChild::AllocPOfflineCacheUpdateChild(const URIParams& manifestURI,
const URIParams& documentURI,
const PrincipalInfo& aLoadingPrincipalInfo,
const bool& stickDocument)
{
MOZ_CRASH("unused");
return nullptr;
}
bool
ContentChild::DeallocPOfflineCacheUpdateChild(POfflineCacheUpdateChild* actor)
{
OfflineCacheUpdateChild* offlineCacheUpdate =
static_cast<OfflineCacheUpdateChild*>(actor);
NS_RELEASE(offlineCacheUpdate);
return true;
}
mozilla::ipc::IPCResult
ContentChild::RecvDomainSetChanged(const uint32_t& aSetType,
const uint32_t& aChangeType,
const OptionalURIParams& aDomain)
{
if (aChangeType == ACTIVATE_POLICY) {
if (mPolicy) {
return IPC_OK();
}
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
MOZ_ASSERT(ssm);
ssm->ActivateDomainPolicyInternal(getter_AddRefs(mPolicy));
if (!mPolicy) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
if (!mPolicy) {
MOZ_ASSERT_UNREACHABLE("If the domain policy is not active yet,"
" the first message should be ACTIVATE_POLICY");
return IPC_FAIL_NO_REASON(this);
}
NS_ENSURE_TRUE(mPolicy, IPC_FAIL_NO_REASON(this));
if (aChangeType == DEACTIVATE_POLICY) {
mPolicy->Deactivate();
mPolicy = nullptr;
return IPC_OK();
}
nsCOMPtr<nsIDomainSet> set;
switch(aSetType) {
case BLOCKLIST:
mPolicy->GetBlocklist(getter_AddRefs(set));
break;
case SUPER_BLOCKLIST:
mPolicy->GetSuperBlocklist(getter_AddRefs(set));
break;
case ALLOWLIST:
mPolicy->GetAllowlist(getter_AddRefs(set));
break;
case SUPER_ALLOWLIST:
mPolicy->GetSuperAllowlist(getter_AddRefs(set));
break;
default:
MOZ_ASSERT_UNREACHABLE("Unexpected setType");
return IPC_FAIL_NO_REASON(this);
}
MOZ_ASSERT(set);
nsCOMPtr<nsIURI> uri = DeserializeURI(aDomain);
switch(aChangeType) {
case ADD_DOMAIN:
NS_ENSURE_TRUE(uri, IPC_FAIL_NO_REASON(this));
set->Add(uri);
break;
case REMOVE_DOMAIN:
NS_ENSURE_TRUE(uri, IPC_FAIL_NO_REASON(this));
set->Remove(uri);
break;
case CLEAR_DOMAINS:
set->Clear();
break;
default:
MOZ_ASSERT_UNREACHABLE("Unexpected changeType");
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
void
ContentChild::StartForceKillTimer()
{
if (mForceKillTimer) {
return;
}
int32_t timeoutSecs = StaticPrefs::dom_ipc_tabs_shutdownTimeoutSecs();
if (timeoutSecs > 0) {
NS_NewTimerWithFuncCallback(getter_AddRefs(mForceKillTimer),
ContentChild::ForceKillTimerCallback,
this,
timeoutSecs * 1000,
nsITimer::TYPE_ONE_SHOT,
"dom::ContentChild::StartForceKillTimer");
MOZ_ASSERT(mForceKillTimer);
}
}
/* static */ void
ContentChild::ForceKillTimerCallback(nsITimer* aTimer, void* aClosure)
{
ProcessChild::QuickExit();
}
mozilla::ipc::IPCResult
ContentChild::RecvShutdown()
{
nsCOMPtr<nsIObserverService> os = services::GetObserverService();
if (os) {
os->NotifyObservers(static_cast<nsIContentChild*>(this),
"content-child-will-shutdown", nullptr);
}
ShutdownInternal();
return IPC_OK();
}
void
ContentChild::ShutdownInternal()
{
// If we receive the shutdown message from within a nested event loop, we want
// to wait for that event loop to finish. Otherwise we could prematurely
// terminate an "unload" or "pagehide" event handler (which might be doing a
// sync XHR, for example).
CrashReporter::AnnotateCrashReport(
CrashReporter::Annotation::IPCShutdownState,
NS_LITERAL_CSTRING("RecvShutdown"));
MOZ_ASSERT(NS_IsMainThread());
RefPtr<nsThread> mainThread = nsThreadManager::get().GetCurrentThread();
// Note that we only have to check the recursion count for the current
// cooperative thread. Since the Shutdown message is not labeled with a
// SchedulerGroup, there can be no other cooperative threads doing work while
// we're running.
if (mainThread && mainThread->RecursionDepth() > 1) {
// We're in a nested event loop. Let's delay for an arbitrary period of
// time (100ms) in the hopes that the event loop will have finished by
// then.
MessageLoop::current()->PostDelayedTask(
NewRunnableMethod(
"dom::ContentChild::RecvShutdown", this,
&ContentChild::ShutdownInternal),
100);
return;
}
mShuttingDown = true;
#ifdef NIGHTLY_BUILD
BackgroundHangMonitor::UnregisterAnnotator(PendingInputEventHangAnnotator::sSingleton);
#endif
if (mPolicy) {
mPolicy->Deactivate();
mPolicy = nullptr;
}
nsCOMPtr<nsIObserverService> os = services::GetObserverService();
if (os) {
os->NotifyObservers(static_cast<nsIContentChild*>(this),
"content-child-shutdown", nullptr);
}
#if defined(XP_WIN)
mozilla::widget::StopAudioSession();
#endif
GetIPCChannel()->SetAbortOnError(false);
#ifdef MOZ_GECKO_PROFILER
if (mProfilerController) {
nsCString shutdownProfile = mProfilerController->GrabShutdownProfileAndShutdown();
mProfilerController = nullptr;
// Send the shutdown profile to the parent process through our own
// message channel, which we know will survive for long enough.
Unused << SendShutdownProfile(shutdownProfile);
}
#endif
// Start a timer that will insure we quickly exit after a reasonable
// period of time. Prevents shutdown hangs after our connection to the
// parent closes.
StartForceKillTimer();
CrashReporter::AnnotateCrashReport(
CrashReporter::Annotation::IPCShutdownState,
NS_LITERAL_CSTRING("SendFinishShutdown (sending)"));
bool sent = SendFinishShutdown();
CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::IPCShutdownState,
sent ? NS_LITERAL_CSTRING("SendFinishShutdown (sent)")
: NS_LITERAL_CSTRING("SendFinishShutdown (failed)"));
}
PBrowserOrId
ContentChild::GetBrowserOrId(TabChild* aTabChild)
{
if (!aTabChild ||
this == aTabChild->Manager()) {
return PBrowserOrId(aTabChild);
}
return PBrowserOrId(aTabChild->GetTabId());
}
mozilla::ipc::IPCResult
ContentChild::RecvUpdateWindow(const uintptr_t& aChildId)
{
#if defined(XP_WIN)
NS_ASSERTION(aChildId, "Expected child hwnd value for remote plugin instance.");
mozilla::plugins::PluginInstanceParent* parentInstance =
mozilla::plugins::PluginInstanceParent::LookupPluginInstanceByID(aChildId);
if (parentInstance) {
// sync! update call to the plugin instance that forces the
// plugin to paint its child window.
if(!parentInstance->CallUpdateWindow()) {
return IPC_FAIL_NO_REASON(this);
}
}
return IPC_OK();
#else
MOZ_ASSERT(false, "ContentChild::RecvUpdateWindow calls unexpected on this platform.");
return IPC_FAIL_NO_REASON(this);
#endif
}
PContentPermissionRequestChild*
ContentChild::AllocPContentPermissionRequestChild(const InfallibleTArray<PermissionRequest>& aRequests,
const IPC::Principal& aPrincipal,
const bool& aIsHandlingUserInput,
const TabId& aTabId)
{
MOZ_CRASH("unused");
return nullptr;
}
bool
ContentChild::DeallocPContentPermissionRequestChild(PContentPermissionRequestChild* actor)
{
nsContentPermissionUtils::NotifyRemoveContentPermissionRequestChild(actor);
auto child = static_cast<RemotePermissionRequest*>(actor);
child->IPDLRelease();
return true;
}
PWebBrowserPersistDocumentChild*
ContentChild::AllocPWebBrowserPersistDocumentChild(PBrowserChild* aBrowser,
const uint64_t& aOuterWindowID)
{
return new WebBrowserPersistDocumentChild();
}
mozilla::ipc::IPCResult
ContentChild::RecvPWebBrowserPersistDocumentConstructor(PWebBrowserPersistDocumentChild *aActor,
PBrowserChild* aBrowser,
const uint64_t& aOuterWindowID)
{
if (NS_WARN_IF(!aBrowser)) {
return IPC_FAIL_NO_REASON(this);
}
nsCOMPtr<nsIDocument> rootDoc =
static_cast<TabChild*>(aBrowser)->GetDocument();
nsCOMPtr<nsIDocument> foundDoc;
if (aOuterWindowID) {
foundDoc = nsContentUtils::GetSubdocumentWithOuterWindowId(rootDoc, aOuterWindowID);
} else {
foundDoc = rootDoc;
}
if (!foundDoc) {
aActor->SendInitFailure(NS_ERROR_NO_CONTENT);
} else {
static_cast<WebBrowserPersistDocumentChild*>(aActor)->Start(foundDoc);
}
return IPC_OK();
}
bool
ContentChild::DeallocPWebBrowserPersistDocumentChild(PWebBrowserPersistDocumentChild* aActor)
{
delete aActor;
return true;
}
mozilla::ipc::IPCResult
ContentChild::RecvSetAudioSessionData(const nsID& aId,
const nsString& aDisplayName,
const nsString& aIconPath)
{
#if defined(XP_WIN)
if (NS_FAILED(mozilla::widget::RecvAudioSessionData(aId, aDisplayName,
aIconPath))) {
return IPC_OK();
}
// Ignore failures here; we can't really do anything about them
mozilla::widget::StartAudioSession();
return IPC_OK();
#else
MOZ_CRASH("Not Reached!");
#endif
}
// This code goes here rather than nsGlobalWindow.cpp because nsGlobalWindow.cpp
// can't include ContentChild.h since it includes windows.h.
static uint64_t gNextWindowID = 0;
// We use only 53 bits for the window ID so that it can be converted to and from
// a JS value without loss of precision. The upper bits of the window ID hold the
// process ID. The lower bits identify the window.
static const uint64_t kWindowIDTotalBits = 53;
static const uint64_t kWindowIDProcessBits = 22;
static const uint64_t kWindowIDWindowBits = kWindowIDTotalBits - kWindowIDProcessBits;
// Try to return a window ID that is unique across processes and that will never
// be recycled.
uint64_t
NextWindowID()
{
uint64_t processID = 0;
if (XRE_IsContentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
processID = cc->GetID();
}
MOZ_RELEASE_ASSERT(processID < (uint64_t(1) << kWindowIDProcessBits));
uint64_t processBits = processID & ((uint64_t(1) << kWindowIDProcessBits) - 1);
// Make sure no actual window ends up with mWindowID == 0.
uint64_t windowID = ++gNextWindowID;
MOZ_RELEASE_ASSERT(windowID < (uint64_t(1) << kWindowIDWindowBits));
uint64_t windowBits = windowID & ((uint64_t(1) << kWindowIDWindowBits) - 1);
return (processBits << kWindowIDWindowBits) | windowBits;
}
mozilla::ipc::IPCResult
ContentChild::RecvInvokeDragSession(nsTArray<IPCDataTransfer>&& aTransfers,
const uint32_t& aAction)
{
nsCOMPtr<nsIDragService> dragService =
do_GetService("@mozilla.org/widget/dragservice;1");
if (dragService) {
dragService->StartDragSession();
nsCOMPtr<nsIDragSession> session;
dragService->GetCurrentSession(getter_AddRefs(session));
if (session) {
session->SetDragAction(aAction);
// Check if we are receiving any file objects. If we are we will want
// to hide any of the other objects coming in from content.
bool hasFiles = false;
for (uint32_t i = 0; i < aTransfers.Length() && !hasFiles; ++i) {
auto& items = aTransfers[i].items();
for (uint32_t j = 0; j < items.Length() && !hasFiles; ++j) {
if (items[j].data().type() == IPCDataTransferData::TIPCBlob) {
hasFiles = true;
}
}
}
// Add the entries from the IPC to the new DataTransfer
nsCOMPtr<DataTransfer> dataTransfer =
new DataTransfer(nullptr, eDragStart, false, -1);
for (uint32_t i = 0; i < aTransfers.Length(); ++i) {
auto& items = aTransfers[i].items();
for (uint32_t j = 0; j < items.Length(); ++j) {
const IPCDataTransferItem& item = items[j];
RefPtr<nsVariantCC> variant = new nsVariantCC();
if (item.data().type() == IPCDataTransferData::TnsString) {
const nsString& data = item.data().get_nsString();
variant->SetAsAString(data);
} else if (item.data().type() == IPCDataTransferData::TShmem) {
Shmem data = item.data().get_Shmem();
variant->SetAsACString(nsDependentCSubstring(data.get<char>(), data.Size<char>()));
Unused << DeallocShmem(data);
} else if (item.data().type() == IPCDataTransferData::TIPCBlob) {
RefPtr<BlobImpl> blobImpl =
IPCBlobUtils::Deserialize(item.data().get_IPCBlob());
variant->SetAsISupports(blobImpl);
} else {
continue;
}
// We should hide this data from content if we have a file, and we aren't a file.
bool hidden = hasFiles && item.data().type() != IPCDataTransferData::TIPCBlob;
dataTransfer->SetDataWithPrincipalFromOtherProcess(
NS_ConvertUTF8toUTF16(item.flavor()), variant, i,
nsContentUtils::GetSystemPrincipal(), hidden);
}
}
session->SetDataTransfer(dataTransfer);
}
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvEndDragSession(const bool& aDoneDrag,
const bool& aUserCancelled,
const LayoutDeviceIntPoint& aDragEndPoint,
const uint32_t& aKeyModifiers)
{
nsCOMPtr<nsIDragService> dragService =
do_GetService("@mozilla.org/widget/dragservice;1");
if (dragService) {
if (aUserCancelled) {
nsCOMPtr<nsIDragSession> dragSession = nsContentUtils::GetDragSession();
if (dragSession) {
dragSession->UserCancelled();
}
}
static_cast<nsBaseDragService*>(dragService.get())->SetDragEndPoint(aDragEndPoint);
dragService->EndDragSession(aDoneDrag, aKeyModifiers);
}
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvPush(const nsCString& aScope,
const IPC::Principal& aPrincipal,
const nsString& aMessageId)
{
PushMessageDispatcher dispatcher(aScope, aPrincipal, aMessageId, Nothing());
Unused << NS_WARN_IF(NS_FAILED(dispatcher.NotifyObserversAndWorkers()));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvPushWithData(const nsCString& aScope,
const IPC::Principal& aPrincipal,
const nsString& aMessageId,
InfallibleTArray<uint8_t>&& aData)
{
PushMessageDispatcher dispatcher(aScope, aPrincipal, aMessageId, Some(aData));
Unused << NS_WARN_IF(NS_FAILED(dispatcher.NotifyObserversAndWorkers()));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvPushSubscriptionChange(const nsCString& aScope,
const IPC::Principal& aPrincipal)
{
PushSubscriptionChangeDispatcher dispatcher(aScope, aPrincipal);
Unused << NS_WARN_IF(NS_FAILED(dispatcher.NotifyObserversAndWorkers()));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvPushError(const nsCString& aScope, const IPC::Principal& aPrincipal,
const nsString& aMessage, const uint32_t& aFlags)
{
PushErrorDispatcher dispatcher(aScope, aPrincipal, aMessage, aFlags);
Unused << NS_WARN_IF(NS_FAILED(dispatcher.NotifyObserversAndWorkers()));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvNotifyPushSubscriptionModifiedObservers(const nsCString& aScope,
const IPC::Principal& aPrincipal)
{
PushSubscriptionModifiedDispatcher dispatcher(aScope, aPrincipal);
Unused << NS_WARN_IF(NS_FAILED(dispatcher.NotifyObservers()));
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvBlobURLRegistration(const nsCString& aURI,
const IPCBlob& aBlob,
const IPC::Principal& aPrincipal)
{
RefPtr<BlobImpl> blobImpl = IPCBlobUtils::Deserialize(aBlob);
MOZ_ASSERT(blobImpl);
BlobURLProtocolHandler::AddDataEntry(aURI, aPrincipal, blobImpl);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvBlobURLUnregistration(const nsCString& aURI)
{
BlobURLProtocolHandler::RemoveDataEntry(aURI,
/* aBroadcastToOtherProcesses = */ false);
return IPC_OK();
}
#if defined(XP_WIN) && defined(ACCESSIBILITY)
bool
ContentChild::SendGetA11yContentId()
{
return PContentChild::SendGetA11yContentId(&mMsaaID);
}
#endif // defined(XP_WIN) && defined(ACCESSIBILITY)
void
ContentChild::CreateGetFilesRequest(const nsAString& aDirectoryPath,
bool aRecursiveFlag,
nsID& aUUID,
GetFilesHelperChild* aChild)
{
MOZ_ASSERT(aChild);
MOZ_ASSERT(!mGetFilesPendingRequests.GetWeak(aUUID));
Unused << SendGetFilesRequest(aUUID, nsString(aDirectoryPath),
aRecursiveFlag);
mGetFilesPendingRequests.Put(aUUID, aChild);
}
void
ContentChild::DeleteGetFilesRequest(nsID& aUUID, GetFilesHelperChild* aChild)
{
MOZ_ASSERT(aChild);
MOZ_ASSERT(mGetFilesPendingRequests.GetWeak(aUUID));
Unused << SendDeleteGetFilesRequest(aUUID);
mGetFilesPendingRequests.Remove(aUUID);
}
mozilla::ipc::IPCResult
ContentChild::RecvGetFilesResponse(const nsID& aUUID,
const GetFilesResponseResult& aResult)
{
GetFilesHelperChild* child = mGetFilesPendingRequests.GetWeak(aUUID);
// This object can already been deleted in case DeleteGetFilesRequest has
// been called when the response was sending by the parent.
if (!child) {
return IPC_OK();
}
if (aResult.type() == GetFilesResponseResult::TGetFilesResponseFailure) {
child->Finished(aResult.get_GetFilesResponseFailure().errorCode());
} else {
MOZ_ASSERT(aResult.type() == GetFilesResponseResult::TGetFilesResponseSuccess);
const nsTArray<IPCBlob>& ipcBlobs =
aResult.get_GetFilesResponseSuccess().blobs();
bool succeeded = true;
for (uint32_t i = 0; succeeded && i < ipcBlobs.Length(); ++i) {
RefPtr<BlobImpl> impl = IPCBlobUtils::Deserialize(ipcBlobs[i]);
succeeded = child->AppendBlobImpl(impl);
}
child->Finished(succeeded ? NS_OK : NS_ERROR_OUT_OF_MEMORY);
}
mGetFilesPendingRequests.Remove(aUUID);
return IPC_OK();
}
/* static */ void
ContentChild::FatalErrorIfNotUsingGPUProcess(const char* const aErrorMsg,
base::ProcessId aOtherPid)
{
// If we're communicating with the same process or the UI process then we
// want to crash normally. Otherwise we want to just warn as the other end
// must be the GPU process and it crashing shouldn't be fatal for us.
if (aOtherPid == base::GetCurrentProcId() ||
(GetSingleton() && GetSingleton()->OtherPid() == aOtherPid)) {
mozilla::ipc::FatalError(aErrorMsg, false);
} else {
nsAutoCString formattedMessage("IPDL error: \"");
formattedMessage.AppendASCII(aErrorMsg);
formattedMessage.AppendLiteral(R"(".)");
NS_WARNING(formattedMessage.get());
}
}
PURLClassifierChild*
ContentChild::AllocPURLClassifierChild(const Principal& aPrincipal,
const bool& aUseTrackingProtection,
bool* aSuccess)
{
*aSuccess = true;
return new URLClassifierChild();
}
bool
ContentChild::DeallocPURLClassifierChild(PURLClassifierChild* aActor)
{
MOZ_ASSERT(aActor);
delete aActor;
return true;
}
PURLClassifierLocalChild*
ContentChild::AllocPURLClassifierLocalChild(const URIParams& aUri,
const nsCString& aTables)
{
return new URLClassifierLocalChild();
}
bool
ContentChild::DeallocPURLClassifierLocalChild(PURLClassifierLocalChild* aActor)
{
MOZ_ASSERT(aActor);
delete aActor;
return true;
}
PLoginReputationChild*
ContentChild::AllocPLoginReputationChild(const URIParams& aUri)
{
return new PLoginReputationChild();
}
bool
ContentChild::DeallocPLoginReputationChild(PLoginReputationChild* aActor)
{
MOZ_ASSERT(aActor);
delete aActor;
return true;
}
// The IPC code will call this method asking us to assign an event target to new
// actors created by the ContentParent.
already_AddRefed<nsIEventTarget>
ContentChild::GetConstructedEventTarget(const Message& aMsg)
{
// Currently we only set targets for PBrowser.
if (aMsg.type() != PContent::Msg_PBrowserConstructor__ID) {
return nullptr;
}
return nsIContentChild::GetConstructedEventTarget(aMsg);
}
void
ContentChild::FileCreationRequest(nsID& aUUID, FileCreatorHelper* aHelper,
const nsAString& aFullPath,
const nsAString& aType,
const nsAString& aName,
const Optional<int64_t>& aLastModified,
bool aExistenceCheck,
bool aIsFromNsIFile)
{
MOZ_ASSERT(aHelper);
bool lastModifiedPassed = false;
int64_t lastModified = 0;
if (aLastModified.WasPassed()) {
lastModifiedPassed = true;
lastModified = aLastModified.Value();
}
Unused << SendFileCreationRequest(aUUID, nsString(aFullPath), nsString(aType),
nsString(aName), lastModifiedPassed,
lastModified, aExistenceCheck,
aIsFromNsIFile);
mFileCreationPending.Put(aUUID, aHelper);
}
mozilla::ipc::IPCResult
ContentChild::RecvFileCreationResponse(const nsID& aUUID,
const FileCreationResult& aResult)
{
FileCreatorHelper* helper = mFileCreationPending.GetWeak(aUUID);
if (!helper) {
return IPC_FAIL_NO_REASON(this);
}
if (aResult.type() == FileCreationResult::TFileCreationErrorResult) {
helper->ResponseReceived(nullptr,
aResult.get_FileCreationErrorResult().errorCode());
} else {
MOZ_ASSERT(aResult.type() == FileCreationResult::TFileCreationSuccessResult);
RefPtr<BlobImpl> impl =
IPCBlobUtils::Deserialize(aResult.get_FileCreationSuccessResult().blob());
helper->ResponseReceived(impl, NS_OK);
}
mFileCreationPending.Remove(aUUID);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvActivate(PBrowserChild* aTab)
{
TabChild* tab = static_cast<TabChild*>(aTab);
return tab->RecvActivate();
}
mozilla::ipc::IPCResult
ContentChild::RecvDeactivate(PBrowserChild* aTab)
{
TabChild* tab = static_cast<TabChild*>(aTab);
return tab->RecvDeactivate();
}
mozilla::ipc::IPCResult
ContentChild::RecvProvideAnonymousTemporaryFile(const uint64_t& aID,
const FileDescOrError& aFDOrError)
{
nsAutoPtr<AnonymousTemporaryFileCallback> callback;
mPendingAnonymousTemporaryFiles.Remove(aID, &callback);
MOZ_ASSERT(callback);
PRFileDesc* prfile = nullptr;
if (aFDOrError.type() == FileDescOrError::Tnsresult) {
DebugOnly<nsresult> rv = aFDOrError.get_nsresult();
MOZ_ASSERT(NS_FAILED(rv));
} else {
auto rawFD = aFDOrError.get_FileDescriptor().ClonePlatformHandle();
prfile = PR_ImportFile(PROsfd(rawFD.release()));
}
(*callback)(prfile);
return IPC_OK();
}
nsresult
ContentChild::AsyncOpenAnonymousTemporaryFile(const AnonymousTemporaryFileCallback& aCallback)
{
MOZ_ASSERT(NS_IsMainThread());
static uint64_t id = 0;
auto newID = id++;
if (!SendRequestAnonymousTemporaryFile(newID)) {
return NS_ERROR_FAILURE;
}
// Remember the association with the callback.
MOZ_ASSERT(!mPendingAnonymousTemporaryFiles.Get(newID));
mPendingAnonymousTemporaryFiles.LookupOrAdd(newID, aCallback);
return NS_OK;
}
mozilla::ipc::IPCResult
ContentChild::RecvSetPermissionsWithKey(const nsCString& aPermissionKey,
nsTArray<IPC::Permission>&& aPerms)
{
nsCOMPtr<nsIPermissionManager> permissionManager =
services::GetPermissionManager();
permissionManager->SetPermissionsWithKey(aPermissionKey, aPerms);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvRefreshScreens(nsTArray<ScreenDetails>&& aScreens)
{
ScreenManager& screenManager = ScreenManager::GetSingleton();
screenManager.Refresh(std::move(aScreens));
return IPC_OK();
}
already_AddRefed<nsIEventTarget>
ContentChild::GetEventTargetFor(TabChild* aTabChild)
{
return IToplevelProtocol::GetActorEventTarget(aTabChild);
}
mozilla::ipc::IPCResult
ContentChild::RecvSetPluginList(const uint32_t& aPluginEpoch,
nsTArray<plugins::PluginTag>&& aPluginTags,
nsTArray<plugins::FakePluginTag>&& aFakePluginTags)
{
RefPtr<nsPluginHost> host = nsPluginHost::GetInst();
host->SetPluginsInContent(aPluginEpoch, aPluginTags, aFakePluginTags);
return IPC_OK();
}
PClientOpenWindowOpChild*
ContentChild::AllocPClientOpenWindowOpChild(const ClientOpenWindowArgs& aArgs)
{
return AllocClientOpenWindowOpChild();
}
IPCResult
ContentChild::RecvPClientOpenWindowOpConstructor(PClientOpenWindowOpChild* aActor,
const ClientOpenWindowArgs& aArgs)
{
InitClientOpenWindowOpChild(aActor, aArgs);
return IPC_OK();
}
bool
ContentChild::DeallocPClientOpenWindowOpChild(PClientOpenWindowOpChild* aActor)
{
return DeallocClientOpenWindowOpChild(aActor);
}
mozilla::ipc::IPCResult
ContentChild::RecvShareCodeCoverageMutex(const CrossProcessMutexHandle& aHandle)
{
#ifdef MOZ_CODE_COVERAGE
CodeCoverageHandler::Init(aHandle);
return IPC_OK();
#else
MOZ_CRASH("Shouldn't receive this message in non-code coverage builds!");
#endif
}
mozilla::ipc::IPCResult
ContentChild::RecvFlushCodeCoverageCounters(FlushCodeCoverageCountersResolver&& aResolver)
{
#ifdef MOZ_CODE_COVERAGE
CodeCoverageHandler::FlushCounters();
aResolver(/* unused */ true);
return IPC_OK();
#else
MOZ_CRASH("Shouldn't receive this message in non-code coverage builds!");
#endif
}
mozilla::ipc::IPCResult
ContentChild::RecvSetInputEventQueueEnabled()
{
nsThreadManager::get().EnableMainThreadEventPrioritization();
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvFlushInputEventQueue()
{
nsThreadManager::get().FlushInputEventPrioritization();
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvSuspendInputEventQueue()
{
nsThreadManager::get().SuspendInputEventPrioritization();
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvResumeInputEventQueue()
{
nsThreadManager::get().ResumeInputEventPrioritization();
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvAddDynamicScalars(nsTArray<DynamicScalarDefinition>&& aDefs)
{
TelemetryIPC::AddDynamicScalarDefinitions(aDefs);
return IPC_OK();
}
mozilla::ipc::IPCResult
ContentChild::RecvSaveRecording(const FileDescriptor& aFile)
{
recordreplay::parent::SaveRecording(aFile);
return IPC_OK();
}
already_AddRefed<nsIEventTarget>
ContentChild::GetSpecificMessageEventTarget(const Message& aMsg)
{
switch(aMsg.type()) {
// Javascript
case PJavaScript::Msg_DropTemporaryStrongReferences__ID:
case PJavaScript::Msg_DropObject__ID:
// Navigation
case PContent::Msg_NotifyVisited__ID:
// Storage API
case PContent::Msg_DataStoragePut__ID:
case PContent::Msg_DataStorageRemove__ID:
case PContent::Msg_DataStorageClear__ID:
// Blob and BlobURL
case PContent::Msg_BlobURLRegistration__ID:
case PContent::Msg_BlobURLUnregistration__ID:
case PContent::Msg_InitBlobURLs__ID:
case PContent::Msg_PIPCBlobInputStreamConstructor__ID:
case PContent::Msg_StoreAndBroadcastBlobURLRegistration__ID:
return do_AddRef(SystemGroup::EventTargetFor(TaskCategory::Other));
default:
return nullptr;
}
}
#ifdef NIGHTLY_BUILD
void
ContentChild::OnChannelReceivedMessage(const Message& aMsg)
{
if (nsContentUtils::IsMessageInputEvent(aMsg)) {
mPendingInputEvents++;
}
}
PContentChild::Result
ContentChild::OnMessageReceived(const Message& aMsg)
{
if (nsContentUtils::IsMessageInputEvent(aMsg)) {
DebugOnly<uint32_t> prevEvts = mPendingInputEvents--;
MOZ_ASSERT(prevEvts > 0);
}
return PContentChild::OnMessageReceived(aMsg);
}
PContentChild::Result
ContentChild::OnMessageReceived(const Message& aMsg, Message*& aReply)
{
return PContentChild::OnMessageReceived(aMsg, aReply);
}
#endif
} // namespace dom
#if defined(__OpenBSD__) && defined(MOZ_CONTENT_SANDBOX)
#include <unistd.h>
static LazyLogModule sPledgeLog("SandboxPledge");
bool
StartOpenBSDSandbox(GeckoProcessType type)
{
nsAutoCString promisesString;
nsAutoCString processTypeString;
switch (type) {
case GeckoProcessType_Default:
processTypeString = "main";
Preferences::GetCString("security.sandbox.pledge.main",
promisesString);
break;
case GeckoProcessType_Content:
processTypeString = "content";
Preferences::GetCString("security.sandbox.pledge.content",
promisesString);
break;
default:
MOZ_ASSERT(false, "unknown process type");
return false;
};
if (pledge(promisesString.get(), NULL) == -1) {
if (errno == EINVAL) {
MOZ_LOG(sPledgeLog, LogLevel::Error,
("pledge promises for %s process is a malformed string: '%s'\n",
processTypeString.get(), promisesString.get()));
} else if (errno == EPERM) {
MOZ_LOG(sPledgeLog, LogLevel::Error,
("pledge promises for %s process can't elevate privileges: '%s'\n",
processTypeString.get(), promisesString.get()));
}
return false;
} else {
MOZ_LOG(sPledgeLog, LogLevel::Debug,
("pledged %s process with promises: '%s'\n",
processTypeString.get(), promisesString.get()));
}
return true;
}
#endif
#if !defined(XP_WIN)
bool IsDevelopmentBuild()
{
nsCOMPtr<nsIFile> path = mozilla::Omnijar::GetPath(mozilla::Omnijar::GRE);
// If the path doesn't exist, we're a dev build.
return path == nullptr;
}
#endif /* !XP_WIN */
#if defined(XP_MACOSX)
/*
* Helper function to read a string value for a given key from the .app's
* Info.plist.
*/
static nsresult
GetStringValueFromBundlePlist(const nsAString& aKey, nsAutoCString& aValue)
{
CFBundleRef mainBundle = CFBundleGetMainBundle();
if (mainBundle == nullptr) {
return NS_ERROR_FAILURE;
}
// Read this app's bundle Info.plist as a dictionary
CFDictionaryRef bundleInfoDict = CFBundleGetInfoDictionary(mainBundle);
if (bundleInfoDict == nullptr) {
return NS_ERROR_FAILURE;
}
nsAutoCString keyAutoCString = NS_ConvertUTF16toUTF8(aKey);
CFStringRef key = CFStringCreateWithCString(kCFAllocatorDefault,
keyAutoCString.get(),
kCFStringEncodingUTF8);
if (key == nullptr) {
return NS_ERROR_FAILURE;
}
CFStringRef value = (CFStringRef)CFDictionaryGetValue(bundleInfoDict, key);
CFRelease(key);
if (value == nullptr) {
return NS_ERROR_FAILURE;
}
CFIndex valueLength = CFStringGetLength(value);
if (valueLength == 0) {
return NS_ERROR_FAILURE;
}
const char* valueCString = CFStringGetCStringPtr(value,
kCFStringEncodingUTF8);
if (valueCString) {
aValue.Assign(valueCString);
return NS_OK;
}
CFIndex maxLength =
CFStringGetMaximumSizeForEncoding(valueLength, kCFStringEncodingUTF8) + 1;
char* valueBuffer = static_cast<char*>(moz_xmalloc(maxLength));
if (!CFStringGetCString(value, valueBuffer, maxLength,
kCFStringEncodingUTF8)) {
free(valueBuffer);
return NS_ERROR_FAILURE;
}
aValue.Assign(valueBuffer);
free(valueBuffer);
return NS_OK;
}
/*
* Helper function for reading a path string from the .app's Info.plist
* and returning a directory object for that path with symlinks resolved.
*/
static nsresult
GetDirFromBundlePlist(const nsAString& aKey, nsIFile **aDir)
{
nsresult rv;
nsAutoCString dirPath;
rv = GetStringValueFromBundlePlist(aKey, dirPath);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> dir;
rv = NS_NewLocalFile(NS_ConvertUTF8toUTF16(dirPath),
false,
getter_AddRefs(dir));
NS_ENSURE_SUCCESS(rv, rv);
rv = dir->Normalize();
NS_ENSURE_SUCCESS(rv, rv);
bool isDirectory = false;
rv = dir->IsDirectory(&isDirectory);
NS_ENSURE_SUCCESS(rv, rv);
if (!isDirectory) {
return NS_ERROR_FILE_NOT_DIRECTORY;
}
dir.swap(*aDir);
return NS_OK;
}
nsresult
GetRepoDir(nsIFile **aRepoDir)
{
MOZ_ASSERT(IsDevelopmentBuild());
return GetDirFromBundlePlist(NS_LITERAL_STRING(MAC_DEV_REPO_KEY), aRepoDir);
}
nsresult
GetObjDir(nsIFile **aObjDir)
{
MOZ_ASSERT(IsDevelopmentBuild());
return GetDirFromBundlePlist(NS_LITERAL_STRING(MAC_DEV_OBJ_KEY), aObjDir);
}
#endif /* XP_MACOSX */
} // namespace mozilla
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