gecko-dev/dom/ipc/ContentChild.cpp

831 lines
21 KiB
C++

/* -*- 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"
#if defined(MOZ_SYDNEYAUDIO)
#include "AudioChild.h"
#endif
#include "mozilla/dom/ExternalHelperAppChild.h"
#include "mozilla/dom/PCrashReporterChild.h"
#include "mozilla/dom/StorageChild.h"
#include "mozilla/hal_sandbox/PHalChild.h"
#include "mozilla/ipc/TestShellChild.h"
#include "mozilla/ipc/XPCShellEnvironment.h"
#include "mozilla/jsipc/PContextWrapperChild.h"
#include "mozilla/layers/CompositorChild.h"
#include "mozilla/layers/PCompositorChild.h"
#include "mozilla/net/NeckoChild.h"
#include "mozilla/Preferences.h"
#include "mozilla/Attributes.h"
#if defined(MOZ_SYDNEYAUDIO)
#include "nsAudioStream.h"
#endif
#include "nsIMemoryReporter.h"
#include "nsIObserverService.h"
#include "nsTObserverArray.h"
#include "nsIObserver.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 "History.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
#ifdef XP_WIN
#include <process.h>
#define getpid _getpid
#endif
#ifdef ACCESSIBILITY
#include "nsIAccessibilityService.h"
#endif
#include "mozilla/dom/sms/SmsChild.h"
#include "mozilla/dom/devicestorage/DeviceStorageRequestChild.h"
#include "mozilla/dom/indexedDB/PIndexedDBChild.h"
using namespace mozilla::docshell;
using namespace mozilla::dom::devicestorage;
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;
using namespace mozilla::places;
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(nsnull, 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;
PRUint32 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(PRUint64(-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
return true;
}
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");
}
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,
PRInt32 aKind, PRInt32 aUnits, PRInt64 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;
PRInt32 kind;
PRInt32 units;
PRInt64 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::DeallocPMemoryReportRequest(PMemoryReportRequestChild* actor)
{
delete actor;
return true;
}
PCompositorChild*
ContentChild::AllocPCompositor(ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return CompositorChild::Create(aTransport, aOtherProcess);
}
PBrowserChild*
ContentChild::AllocPBrowser(const PRUint32& aChromeFlags,
const bool& aIsBrowserElement,
const PRUint32& aAppId)
{
nsRefPtr<TabChild> iframe = new TabChild(aChromeFlags, aIsBrowserElement, aAppId);
return NS_SUCCEEDED(iframe->Init()) ? iframe.forget().get() : NULL;
}
bool
ContentChild::DeallocPBrowser(PBrowserChild* iframe)
{
TabChild* child = static_cast<TabChild*>(iframe);
NS_RELEASE(child);
return true;
}
PCrashReporterChild*
ContentChild::AllocPCrashReporter(const mozilla::dom::NativeThreadId& id,
const PRUint32& processType)
{
#ifdef MOZ_CRASHREPORTER
return new CrashReporterChild();
#else
return nsnull;
#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;
}
PAudioChild*
ContentChild::AllocPAudio(const PRInt32& numChannels,
const PRInt32& rate,
const PRInt32& format)
{
#if defined(MOZ_SYDNEYAUDIO)
AudioChild *child = new AudioChild();
NS_ADDREF(child);
return child;
#else
return nsnull;
#endif
}
bool
ContentChild::DeallocPAudio(PAudioChild* doomed)
{
#if defined(MOZ_SYDNEYAUDIO)
AudioChild *child = static_cast<AudioChild*>(doomed);
NS_RELEASE(child);
#endif
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 IPC::URI& uri,
const nsCString& aMimeContentType,
const nsCString& aContentDisposition,
const bool& aForceSave,
const PRInt64& aContentLength,
const IPC::URI& 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 nsnull;
}
bool
ContentChild::DeallocPStorage(PStorageChild* aActor)
{
StorageChild* child = static_cast<StorageChild*>(aActor);
child->ReleaseIPDLReference();
return true;
}
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
mAlertObservers.Clear();
nsCOMPtr<nsIConsoleService> svc(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
if (svc) {
svc->UnregisterListener(mConsoleListener);
mConsoleListener->mChild = nsnull;
}
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 PrefTuple& aPref)
{
Preferences::SetPreference(&aPref);
return true;
}
bool
ContentChild::RecvClearUserPreference(const nsCString& aPrefName)
{
Preferences::ClearContentPref(aPrefName.get());
return true;
}
bool
ContentChild::RecvNotifyAlertsObserver(const nsCString& aType, const nsString& aData)
{
for (PRUint32 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 IPC::URI& aURI)
{
nsCOMPtr<nsIURI> newURI(aURI);
History::GetService()->NotifyVisited(newURI);
return true;
}
bool
ContentChild::RecvAsyncMessage(const nsString& aMsg, const nsString& aJSON)
{
nsRefPtr<nsFrameMessageManager> cpm = nsFrameMessageManager::sChildProcessManager;
if (cpm) {
cpm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(cpm.get()),
aMsg, false, aJSON, nsnull, nsnull);
}
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 !");
permissionManager->AddInternal(nsCString(permission.host),
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(nsnull, "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;
}
bool
ContentChild::RecvAppInfo(const nsCString& version, const nsCString& buildID)
{
mAppInfo.version.Assign(version);
mAppInfo.buildID.Assign(buildID);
return true;
}
bool
ContentChild::RecvSetID(const PRUint64 &id)
{
if (mID != PRUint64(-1)) {
NS_WARNING("Setting content child's ID twice?");
}
mID = id;
return true;
}
bool
ContentChild::RecvLastPrivateDocShellDestroyed()
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->NotifyObservers(nsnull, "last-pb-context-exited", nsnull);
return true;
}
} // namespace dom
} // namespace mozilla