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ab6c6b406d
gecko/dom/ipc/ContentChild.cpp
Ben Turner 72bdb2945a Bug 832419 - 'Clean up IPC blobs'. r=sicking.
2013-01-17 12:17:33 -08:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set sw=4 ts=8 et tw=80 : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifdef MOZ_WIDGET_GTK
#include <gtk/gtk.h>
#endif
#ifdef MOZ_WIDGET_QT
#include "nsQAppInstance.h"
#endif
#include "ContentChild.h"
#include "CrashReporterChild.h"
#include "TabChild.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/ExternalHelperAppChild.h"
#include "mozilla/dom/PCrashReporterChild.h"
#include "mozilla/dom/StorageChild.h"
#include "mozilla/Hal.h"
#include "mozilla/hal_sandbox/PHalChild.h"
#include "mozilla/ipc/GeckoChildProcessHost.h"
#include "mozilla/ipc/TestShellChild.h"
#include "mozilla/ipc/XPCShellEnvironment.h"
#include "mozilla/jsipc/PContextWrapperChild.h"
#include "mozilla/layers/CompositorChild.h"
#include "mozilla/layers/ImageBridgeChild.h"
#include "mozilla/layers/PCompositorChild.h"
#include "mozilla/net/NeckoChild.h"
#include "mozilla/Preferences.h"
#include "mozilla/unused.h"
#include "nsIMemoryReporter.h"
#include "nsIMemoryInfoDumper.h"
#include "nsIMutable.h"
#include "nsIObserverService.h"
#include "nsTObserverArray.h"
#include "nsIObserver.h"
#include "nsIScriptSecurityManager.h"
#include "nsServiceManagerUtils.h"
#include "nsXULAppAPI.h"
#include "nsWeakReference.h"
#include "nsIScriptError.h"
#include "nsIConsoleService.h"
#include "nsJSEnvironment.h"
#include "SandboxHal.h"
#include "nsDebugImpl.h"
#include "nsLayoutStylesheetCache.h"
#include "IHistory.h"
#include "nsDocShellCID.h"
#include "nsNetUtil.h"
#include "base/message_loop.h"
#include "base/process_util.h"
#include "base/task.h"
#include "nsChromeRegistryContent.h"
#include "mozilla/chrome/RegistryMessageUtils.h"
#include "nsFrameMessageManager.h"
#include "nsIGeolocationProvider.h"
#include "mozilla/dom/PMemoryReportRequestChild.h"
#ifdef MOZ_PERMISSIONS
#include "nsPermission.h"
#include "nsPermissionManager.h"
#endif
#if defined(MOZ_WIDGET_ANDROID)
#include "APKOpen.h"
#endif
#if defined(MOZ_WIDGET_GONK)
#include "nsVolume.h"
#endif
#ifdef XP_WIN
#include <process.h>
#define getpid _getpid
#endif
#ifdef ACCESSIBILITY
#include "nsIAccessibilityService.h"
#endif
#include "mozilla/dom/indexedDB/PIndexedDBChild.h"
#include "mozilla/dom/sms/SmsChild.h"
#include "mozilla/dom/devicestorage/DeviceStorageRequestChild.h"
#include "mozilla/dom/bluetooth/PBluetoothChild.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "nsDOMFile.h"
#include "nsIRemoteBlob.h"
#include "ProcessUtils.h"
#include "StructuredCloneUtils.h"
#include "URIUtils.h"
#include "nsIScriptSecurityManager.h"
#include "nsContentUtils.h"
#include "nsIPrincipal.h"
#include "nsDeviceStorage.h"
#include "AudioChannelService.h"
#include "ProcessPriorityManager.h"
using namespace base;
using namespace mozilla;
using namespace mozilla::docshell;
using namespace mozilla::dom::bluetooth;
using namespace mozilla::dom::devicestorage;
using namespace mozilla::dom::ipc;
using namespace mozilla::dom::sms;
using namespace mozilla::dom::indexedDB;
using namespace mozilla::hal_sandbox;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::net;
#if defined(MOZ_WIDGET_GONK)
using namespace mozilla::system;
#endif
namespace mozilla {
namespace dom {
class MemoryReportRequestChild : public PMemoryReportRequestChild
{
public:
MemoryReportRequestChild();
virtual ~MemoryReportRequestChild();
};
MemoryReportRequestChild::MemoryReportRequestChild()
{
MOZ_COUNT_CTOR(MemoryReportRequestChild);
}
MemoryReportRequestChild::~MemoryReportRequestChild()
{
MOZ_COUNT_DTOR(MemoryReportRequestChild);
}
class AlertObserver
{
public:
AlertObserver(nsIObserver *aObserver, const nsString& aData)
: mObserver(aObserver)
, mData(aData)
{
}
~AlertObserver() {}
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 MOZ_FINAL : public nsIConsoleListener
{
public:
ConsoleListener(ContentChild* aChild)
: mChild(aChild) {}
NS_DECL_ISUPPORTS
NS_DECL_NSICONSOLELISTENER
private:
ContentChild* mChild;
friend class ContentChild;
};
NS_IMPL_ISUPPORTS1(ConsoleListener, nsIConsoleListener)
NS_IMETHODIMP
ConsoleListener::Observe(nsIConsoleMessage* aMessage)
{
if (!mChild)
return NS_OK;
nsCOMPtr<nsIScriptError> scriptError = do_QueryInterface(aMessage);
if (scriptError) {
nsString msg, sourceName, sourceLine;
nsXPIDLCString category;
uint32_t lineNum, colNum, flags;
nsresult rv = scriptError->GetErrorMessage(msg);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetSourceName(sourceName);
NS_ENSURE_SUCCESS(rv, rv);
rv = scriptError->GetSourceLine(sourceLine);
NS_ENSURE_SUCCESS(rv, rv);
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);
mChild->SendScriptError(msg, sourceName, sourceLine,
lineNum, colNum, flags, category);
return NS_OK;
}
nsXPIDLString msg;
nsresult rv = aMessage->GetMessageMoz(getter_Copies(msg));
NS_ENSURE_SUCCESS(rv, rv);
mChild->SendConsoleMessage(msg);
return NS_OK;
}
ContentChild* ContentChild::sSingleton;
ContentChild::ContentChild()
: mID(uint64_t(-1))
#ifdef ANDROID
,mScreenSize(0, 0)
#endif
{
// This process is a content process, so it's clearly running in
// multiprocess mode!
nsDebugImpl::SetMultiprocessMode("Child");
}
ContentChild::~ContentChild()
{
}
bool
ContentChild::Init(MessageLoop* aIOLoop,
base::ProcessHandle aParentHandle,
IPC::Channel* aChannel)
{
#ifdef MOZ_WIDGET_GTK
// sigh
gtk_init(NULL, NULL);
#endif
#ifdef MOZ_WIDGET_QT
// sigh, seriously
nsQAppInstance::AddRef();
#endif
#ifdef MOZ_X11
// Do this after initializing GDK, or GDK will install its own handler.
XRE_InstallX11ErrorHandler();
#endif
NS_ASSERTION(!sSingleton, "only one ContentChild per child");
Open(aChannel, aParentHandle, aIOLoop);
sSingleton = this;
#ifdef MOZ_CRASHREPORTER
SendPCrashReporterConstructor(CrashReporter::CurrentThreadId(),
XRE_GetProcessType());
#if defined(MOZ_WIDGET_ANDROID)
PCrashReporterChild* crashreporter = ManagedPCrashReporterChild()[0];
InfallibleTArray<Mapping> mappings;
const struct mapping_info *info = getLibraryMapping();
while (info && info->name) {
mappings.AppendElement(Mapping(nsDependentCString(info->name),
nsDependentCString(info->file_id),
info->base,
info->len,
info->offset));
info++;
}
crashreporter->SendAddLibraryMappings(mappings);
#endif
#endif
SendGetProcessAttributes(&mID, &mIsForApp, &mIsForBrowser);
if (mIsForApp && !mIsForBrowser) {
SetProcessName(NS_LITERAL_STRING("(Preallocated app)"));
} else {
SetProcessName(NS_LITERAL_STRING("Browser"));
}
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)
printf_stderr("\n\nCHILDCHILDCHILDCHILD\n [%s] debug me @%d\n\n", name, _getpid());
Sleep(30000);
#endif
}
mProcessName = aName;
mozilla::ipc::SetThisProcessName(NS_LossyConvertUTF16toASCII(aName).get());
}
const void
ContentChild::GetProcessName(nsAString& aName)
{
aName.Assign(mProcessName);
}
void
ContentChild::InitXPCOM()
{
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");
bool isOffline;
SendGetXPCOMProcessAttributes(&isOffline);
RecvSetOffline(isOffline);
DebugOnly<FileUpdateDispatcher*> observer = FileUpdateDispatcher::GetSingleton();
NS_ASSERTION(observer, "FileUpdateDispatcher is null");
}
PMemoryReportRequestChild*
ContentChild::AllocPMemoryReportRequest()
{
return new MemoryReportRequestChild();
}
// This is just a wrapper for InfallibleTArray<MemoryReport> that implements
// nsISupports, so it can be passed to nsIMemoryMultiReporter::CollectReports.
class MemoryReportsWrapper MOZ_FINAL : public nsISupports {
public:
NS_DECL_ISUPPORTS
MemoryReportsWrapper(InfallibleTArray<MemoryReport> *r) : mReports(r) { }
InfallibleTArray<MemoryReport> *mReports;
};
NS_IMPL_ISUPPORTS0(MemoryReportsWrapper)
class MemoryReportCallback MOZ_FINAL : public nsIMemoryMultiReporterCallback
{
public:
NS_DECL_ISUPPORTS
MemoryReportCallback(const nsACString &aProcess)
: mProcess(aProcess)
{
}
NS_IMETHOD Callback(const nsACString &aProcess, const nsACString &aPath,
int32_t aKind, int32_t aUnits, int64_t aAmount,
const nsACString &aDescription,
nsISupports *aiWrappedReports)
{
MemoryReportsWrapper *wrappedReports =
static_cast<MemoryReportsWrapper *>(aiWrappedReports);
MemoryReport memreport(mProcess, nsCString(aPath), aKind, aUnits,
aAmount, nsCString(aDescription));
wrappedReports->mReports->AppendElement(memreport);
return NS_OK;
}
private:
const nsCString mProcess;
};
NS_IMPL_ISUPPORTS1(
MemoryReportCallback
, nsIMemoryMultiReporterCallback
)
bool
ContentChild::RecvPMemoryReportRequestConstructor(PMemoryReportRequestChild* child)
{
nsCOMPtr<nsIMemoryReporterManager> mgr = do_GetService("@mozilla.org/memory-reporter-manager;1");
InfallibleTArray<MemoryReport> reports;
nsPrintfCString process("Content (%d)", getpid());
// First do the vanilla memory reporters.
nsCOMPtr<nsISimpleEnumerator> e;
mgr->EnumerateReporters(getter_AddRefs(e));
bool more;
while (NS_SUCCEEDED(e->HasMoreElements(&more)) && more) {
nsCOMPtr<nsIMemoryReporter> r;
e->GetNext(getter_AddRefs(r));
nsCString path;
int32_t kind;
int32_t units;
int64_t amount;
nsCString desc;
if (NS_SUCCEEDED(r->GetPath(path)) &&
NS_SUCCEEDED(r->GetKind(&kind)) &&
NS_SUCCEEDED(r->GetUnits(&units)) &&
NS_SUCCEEDED(r->GetAmount(&amount)) &&
NS_SUCCEEDED(r->GetDescription(desc)))
{
MemoryReport memreport(process, path, kind, units, amount, desc);
reports.AppendElement(memreport);
}
}
// Then do the memory multi-reporters, by calling CollectReports on each
// one, whereupon the callback will turn each measurement into a
// MemoryReport.
mgr->EnumerateMultiReporters(getter_AddRefs(e));
nsRefPtr<MemoryReportsWrapper> wrappedReports =
new MemoryReportsWrapper(&reports);
nsRefPtr<MemoryReportCallback> cb = new MemoryReportCallback(process);
while (NS_SUCCEEDED(e->HasMoreElements(&more)) && more) {
nsCOMPtr<nsIMemoryMultiReporter> r;
e->GetNext(getter_AddRefs(r));
r->CollectReports(cb, wrappedReports);
}
child->Send__delete__(child, reports);
return true;
}
bool
ContentChild::RecvAudioChannelNotify()
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
if (service) {
service->Notify();
}
return true;
}
bool
ContentChild::DeallocPMemoryReportRequest(PMemoryReportRequestChild* actor)
{
delete actor;
return true;
}
bool
ContentChild::RecvDumpMemoryReportsToFile(const nsString& aIdentifier,
const bool& aMinimizeMemoryUsage,
const bool& aDumpChildProcesses)
{
nsCOMPtr<nsIMemoryInfoDumper> dumper = do_GetService("@mozilla.org/memory-info-dumper;1");
dumper->DumpMemoryReportsToFile(
aIdentifier, aMinimizeMemoryUsage, aDumpChildProcesses);
return true;
}
bool
ContentChild::RecvDumpGCAndCCLogsToFile(const nsString& aIdentifier,
const bool& aDumpChildProcesses)
{
nsCOMPtr<nsIMemoryInfoDumper> dumper = do_GetService("@mozilla.org/memory-info-dumper;1");
dumper->DumpGCAndCCLogsToFile(
aIdentifier, aDumpChildProcesses);
return true;
}
PCompositorChild*
ContentChild::AllocPCompositor(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return CompositorChild::Create(aTransport, aOtherProcess);
}
PImageBridgeChild*
ContentChild::AllocPImageBridge(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return ImageBridgeChild::StartUpInChildProcess(aTransport, aOtherProcess);
}
bool
ContentChild::RecvSetProcessPrivileges(const ChildPrivileges& aPrivs)
{
ChildPrivileges privs = (aPrivs == PRIVILEGES_DEFAULT) ?
GeckoChildProcessHost::DefaultChildPrivileges() :
aPrivs;
// If this fails, we die.
SetCurrentProcessPrivileges(privs);
return true;
}
static CancelableTask* sFirstIdleTask;
static void FirstIdle(void)
{
MOZ_ASSERT(sFirstIdleTask);
sFirstIdleTask = nullptr;
ContentChild::GetSingleton()->SendFirstIdle();
}
PBrowserChild*
ContentChild::AllocPBrowser(const IPCTabContext& aContext,
const uint32_t& aChromeFlags)
{
static bool hasRunOnce = false;
if (!hasRunOnce) {
hasRunOnce = true;
MOZ_ASSERT(!sFirstIdleTask);
sFirstIdleTask = NewRunnableFunction(FirstIdle);
MessageLoop::current()->PostIdleTask(FROM_HERE, sFirstIdleTask);
// If we are the preallocated process transforming into an app process,
// we'll have background priority at this point. Give ourselves a
// priority boost for a few seconds, so we don't get killed while we're
// loading our first TabChild.
TemporarilySetProcessPriorityToForeground();
}
// We'll happily accept any kind of IPCTabContext here; we don't need to
// check that it's of a certain type for security purposes, because we
// believe whatever the parent process tells us.
nsRefPtr<TabChild> child = TabChild::Create(TabContext(aContext), aChromeFlags);
// The ref here is released below.
return child.forget().get();
}
bool
ContentChild::DeallocPBrowser(PBrowserChild* iframe)
{
TabChild* child = static_cast<TabChild*>(iframe);
NS_RELEASE(child);
return true;
}
PBlobChild*
ContentChild::AllocPBlob(const BlobConstructorParams& aParams)
{
return BlobChild::Create(aParams);
}
bool
ContentChild::DeallocPBlob(PBlobChild* aActor)
{
delete aActor;
return true;
}
BlobChild*
ContentChild::GetOrCreateActorForBlob(nsIDOMBlob* aBlob)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aBlob, "Null pointer!");
// XXX This is only safe so long as all blob implementations in our tree
// inherit nsDOMFileBase. If that ever changes then this will need to grow
// a real interface or something.
const nsDOMFileBase* blob = static_cast<nsDOMFileBase*>(aBlob);
// All blobs shared between processes must be immutable.
nsCOMPtr<nsIMutable> mutableBlob = do_QueryInterface(aBlob);
if (!mutableBlob || NS_FAILED(mutableBlob->SetMutable(false))) {
NS_WARNING("Failed to make blob immutable!");
return nullptr;
}
nsCOMPtr<nsIRemoteBlob> remoteBlob = do_QueryInterface(aBlob);
if (remoteBlob) {
BlobChild* actor =
static_cast<BlobChild*>(static_cast<PBlobChild*>(remoteBlob->GetPBlob()));
NS_ASSERTION(actor, "Null actor?!");
return actor;
}
ParentBlobConstructorParams params;
if (blob->IsSizeUnknown() || blob->IsDateUnknown()) {
// We don't want to call GetSize or GetLastModifiedDate
// yet since that may stat a file on the main thread
// here. Instead we'll learn the size lazily from the
// other process.
params.blobParams() = MysteryBlobConstructorParams();
params.optionalInputStreamParams() = void_t();
}
else {
nsString contentType;
nsresult rv = aBlob->GetType(contentType);
NS_ENSURE_SUCCESS(rv, nullptr);
uint64_t length;
rv = aBlob->GetSize(&length);
NS_ENSURE_SUCCESS(rv, nullptr);
nsCOMPtr<nsIInputStream> stream;
rv = aBlob->GetInternalStream(getter_AddRefs(stream));
NS_ENSURE_SUCCESS(rv, nullptr);
InputStreamParams inputStreamParams;
SerializeInputStream(stream, inputStreamParams);
params.optionalInputStreamParams() = inputStreamParams;
nsCOMPtr<nsIDOMFile> file = do_QueryInterface(aBlob);
if (file) {
FileBlobConstructorParams fileParams;
rv = file->GetName(fileParams.name());
NS_ENSURE_SUCCESS(rv, nullptr);
rv = file->GetMozLastModifiedDate(&fileParams.modDate());
NS_ENSURE_SUCCESS(rv, nullptr);
fileParams.contentType() = contentType;
fileParams.length() = length;
params.blobParams() = fileParams;
} else {
NormalBlobConstructorParams blobParams;
blobParams.contentType() = contentType;
blobParams.length() = length;
params.blobParams() = blobParams;
}
}
BlobChild* actor = BlobChild::Create(aBlob);
NS_ENSURE_TRUE(actor, nullptr);
if (!SendPBlobConstructor(actor, params)) {
return nullptr;
}
return actor;
}
PCrashReporterChild*
ContentChild::AllocPCrashReporter(const mozilla::dom::NativeThreadId& id,
const uint32_t& processType)
{
#ifdef MOZ_CRASHREPORTER
return new CrashReporterChild();
#else
return nullptr;
#endif
}
bool
ContentChild::DeallocPCrashReporter(PCrashReporterChild* crashreporter)
{
delete crashreporter;
return true;
}
PHalChild*
ContentChild::AllocPHal()
{
return CreateHalChild();
}
bool
ContentChild::DeallocPHal(PHalChild* aHal)
{
delete aHal;
return true;
}
PIndexedDBChild*
ContentChild::AllocPIndexedDB()
{
NS_NOTREACHED("Should never get here!");
return NULL;
}
bool
ContentChild::DeallocPIndexedDB(PIndexedDBChild* aActor)
{
delete aActor;
return true;
}
PTestShellChild*
ContentChild::AllocPTestShell()
{
return new TestShellChild();
}
bool
ContentChild::DeallocPTestShell(PTestShellChild* shell)
{
delete shell;
return true;
}
bool
ContentChild::RecvPTestShellConstructor(PTestShellChild* actor)
{
actor->SendPContextWrapperConstructor()->SendPObjectWrapperConstructor(true);
return true;
}
PDeviceStorageRequestChild*
ContentChild::AllocPDeviceStorageRequest(const DeviceStorageParams& aParams)
{
return new DeviceStorageRequestChild();
}
bool
ContentChild::DeallocPDeviceStorageRequest(PDeviceStorageRequestChild* aDeviceStorage)
{
delete aDeviceStorage;
return true;
}
PNeckoChild*
ContentChild::AllocPNecko()
{
return new NeckoChild();
}
bool
ContentChild::DeallocPNecko(PNeckoChild* necko)
{
delete necko;
return true;
}
PExternalHelperAppChild*
ContentChild::AllocPExternalHelperApp(const OptionalURIParams& uri,
const nsCString& aMimeContentType,
const nsCString& aContentDisposition,
const bool& aForceSave,
const int64_t& aContentLength,
const OptionalURIParams& aReferrer)
{
ExternalHelperAppChild *child = new ExternalHelperAppChild();
child->AddRef();
return child;
}
bool
ContentChild::DeallocPExternalHelperApp(PExternalHelperAppChild* aService)
{
ExternalHelperAppChild *child = static_cast<ExternalHelperAppChild*>(aService);
child->Release();
return true;
}
PSmsChild*
ContentChild::AllocPSms()
{
return new SmsChild();
}
bool
ContentChild::DeallocPSms(PSmsChild* aSms)
{
delete aSms;
return true;
}
PStorageChild*
ContentChild::AllocPStorage(const StorageConstructData& aData)
{
NS_NOTREACHED("We should never be manually allocating PStorageChild actors");
return nullptr;
}
bool
ContentChild::DeallocPStorage(PStorageChild* aActor)
{
StorageChild* child = static_cast<StorageChild*>(aActor);
child->ReleaseIPDLReference();
return true;
}
PBluetoothChild*
ContentChild::AllocPBluetooth()
{
#ifdef MOZ_B2G_BT
MOZ_NOT_REACHED("No one should be allocating PBluetoothChild actors");
return nullptr;
#else
MOZ_NOT_REACHED("No support for bluetooth on this platform!");
return nullptr;
#endif
}
bool
ContentChild::DeallocPBluetooth(PBluetoothChild* aActor)
{
#ifdef MOZ_B2G_BT
delete aActor;
return true;
#else
MOZ_NOT_REACHED("No support for bluetooth on this platform!");
return false;
#endif
}
bool
ContentChild::RecvRegisterChrome(const InfallibleTArray<ChromePackage>& packages,
const InfallibleTArray<ResourceMapping>& resources,
const InfallibleTArray<OverrideMapping>& overrides,
const nsCString& locale)
{
nsCOMPtr<nsIChromeRegistry> registrySvc = nsChromeRegistry::GetService();
nsChromeRegistryContent* chromeRegistry =
static_cast<nsChromeRegistryContent*>(registrySvc.get());
chromeRegistry->RegisterRemoteChrome(packages, resources, overrides, locale);
return true;
}
bool
ContentChild::RecvSetOffline(const bool& offline)
{
nsCOMPtr<nsIIOService> io (do_GetIOService());
NS_ASSERTION(io, "IO Service can not be null");
io->SetOffline(offline);
return true;
}
void
ContentChild::ActorDestroy(ActorDestroyReason why)
{
if (AbnormalShutdown == why) {
NS_WARNING("shutting down early because of crash!");
QuickExit();
}
#ifndef DEBUG
// 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.
QuickExit();
#endif
if (sFirstIdleTask) {
sFirstIdleTask->Cancel();
}
mAlertObservers.Clear();
nsCOMPtr<nsIConsoleService> svc(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
if (svc) {
svc->UnregisterListener(mConsoleListener);
mConsoleListener->mChild = nullptr;
}
XRE_ShutdownChildProcess();
}
void
ContentChild::ProcessingError(Result what)
{
switch (what) {
case MsgDropped:
QuickExit();
case MsgNotKnown:
case MsgNotAllowed:
case MsgPayloadError:
case MsgProcessingError:
case MsgRouteError:
case MsgValueError:
NS_RUNTIMEABORT("aborting because of fatal error");
default:
NS_RUNTIMEABORT("not reached");
}
}
void
ContentChild::QuickExit()
{
NS_WARNING("content process _exit()ing");
_exit(0);
}
nsresult
ContentChild::AddRemoteAlertObserver(const nsString& aData,
nsIObserver* aObserver)
{
NS_ASSERTION(aObserver, "Adding a null observer?");
mAlertObservers.AppendElement(new AlertObserver(aObserver, aData));
return NS_OK;
}
bool
ContentChild::RecvPreferenceUpdate(const PrefSetting& aPref)
{
Preferences::SetPreference(aPref);
return true;
}
bool
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 true;
}
bool
ContentChild::RecvNotifyVisited(const URIParams& aURI)
{
nsCOMPtr<nsIURI> newURI = DeserializeURI(aURI);
if (!newURI) {
return false;
}
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->NotifyVisited(newURI);
}
return true;
}
bool
ContentChild::RecvAsyncMessage(const nsString& aMsg,
const ClonedMessageData& aData)
{
nsRefPtr<nsFrameMessageManager> cpm = nsFrameMessageManager::sChildProcessManager;
if (cpm) {
StructuredCloneData cloneData = ipc::UnpackClonedMessageDataForChild(aData);
cpm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(cpm.get()),
aMsg, false, &cloneData, nullptr, nullptr);
}
return true;
}
bool
ContentChild::RecvGeolocationUpdate(const GeoPosition& somewhere)
{
nsCOMPtr<nsIGeolocationUpdate> gs = do_GetService("@mozilla.org/geolocation/service;1");
if (!gs) {
return true;
}
nsCOMPtr<nsIDOMGeoPosition> position = somewhere;
gs->Update(position);
return true;
}
bool
ContentChild::RecvAddPermission(const IPC::Permission& permission)
{
#if MOZ_PERMISSIONS
nsCOMPtr<nsIPermissionManager> permissionManagerIface =
do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
nsPermissionManager* permissionManager =
static_cast<nsPermissionManager*>(permissionManagerIface.get());
NS_ABORT_IF_FALSE(permissionManager,
"We have no permissionManager in the Content process !");
nsCOMPtr<nsIURI> uri;
NS_NewURI(getter_AddRefs(uri), NS_LITERAL_CSTRING("http://") + nsCString(permission.host));
NS_ENSURE_TRUE(uri, true);
nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
MOZ_ASSERT(secMan);
nsCOMPtr<nsIPrincipal> principal;
nsresult rv = secMan->GetAppCodebasePrincipal(uri, permission.appId,
permission.isInBrowserElement,
getter_AddRefs(principal));
NS_ENSURE_SUCCESS(rv, true);
permissionManager->AddInternal(principal,
nsCString(permission.type),
permission.capability,
0,
permission.expireType,
permission.expireTime,
nsPermissionManager::eNotify,
nsPermissionManager::eNoDBOperation);
#endif
return true;
}
bool
ContentChild::RecvScreenSizeChanged(const gfxIntSize& size)
{
#ifdef ANDROID
mScreenSize = size;
#else
NS_RUNTIMEABORT("Message currently only expected on android");
#endif
return true;
}
bool
ContentChild::RecvFlushMemory(const nsString& reason)
{
nsCOMPtr<nsIObserverService> os =
mozilla::services::GetObserverService();
if (os)
os->NotifyObservers(nullptr, "memory-pressure", reason.get());
return true;
}
bool
ContentChild::RecvActivateA11y()
{
#ifdef ACCESSIBILITY
// Start accessibility in content process if it's running in chrome
// process.
nsCOMPtr<nsIAccessibilityService> accService =
do_GetService("@mozilla.org/accessibilityService;1");
#endif
return true;
}
bool
ContentChild::RecvGarbageCollect()
{
nsJSContext::GarbageCollectNow(js::gcreason::DOM_IPC);
return true;
}
bool
ContentChild::RecvCycleCollect()
{
nsJSContext::GarbageCollectNow(js::gcreason::DOM_IPC);
nsJSContext::CycleCollectNow();
return true;
}
static void
PreloadSlowThings()
{
// This fetches and creates all the built-in stylesheets.
nsLayoutStylesheetCache::UserContentSheet();
TabChild::PreloadSlowThings();
}
bool
ContentChild::RecvAppInfo(const nsCString& version, const nsCString& buildID)
{
mAppInfo.version.Assign(version);
mAppInfo.buildID.Assign(buildID);
// If we're part of the mozbrowser machinery, go ahead and start
// preloading things. We can only do this for mozbrowser because
// PreloadSlowThings() may set the docshell of the first TabChild
// inactive, and we can only safely restore it to active from
// BrowserElementChild.js.
if ((mIsForApp || mIsForBrowser) &&
Preferences::GetBool("dom.ipc.processPrelaunch.enabled", false)) {
PreloadSlowThings();
}
return true;
}
bool
ContentChild::RecvLastPrivateDocShellDestroyed()
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->NotifyObservers(nullptr, "last-pb-context-exited", nullptr);
return true;
}
bool
ContentChild::RecvFilePathUpdate(const nsString& type, const nsString& path, const nsCString& aReason)
{
nsCOMPtr<nsIFile> file;
NS_NewLocalFile(path, false, getter_AddRefs(file));
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(type, file);
nsString reason;
CopyASCIItoUTF16(aReason, reason);
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->NotifyObservers(dsf, "file-watcher-update", reason.get());
return true;
}
bool
ContentChild::RecvFileSystemUpdate(const nsString& aFsName,
const nsString& aName,
const int32_t& aState,
const int32_t& aMountGeneration)
{
#ifdef MOZ_WIDGET_GONK
nsRefPtr<nsVolume> volume = new nsVolume(aFsName, aName, aState,
aMountGeneration);
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
NS_ConvertUTF8toUTF16 stateStr(volume->StateStr());
obs->NotifyObservers(volume, NS_VOLUME_STATE_CHANGED, stateStr.get());
#else
// Remove warnings about unused arguments
unused << aFsName;
unused << aName;
unused << aState;
unused << aMountGeneration;
#endif
return true;
}
} // namespace dom
} // namespace mozilla
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