Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-12-13 10:25:01 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
bdfaa84f5b
gecko-dev/dom/ipc/ContentParent.cpp

2797 lines
84 KiB
C++
Raw Blame History

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set sw=4 ts=8 et tw=80 : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/DebugOnly.h"
#include "base/basictypes.h"
#include "ContentParent.h"
#if defined(ANDROID) || defined(LINUX)
# include <sys/time.h>
# include <sys/resource.h>
#endif
#include "chrome/common/process_watcher.h"
#include "AppProcessChecker.h"
#include "AudioChannelService.h"
#include "CrashReporterParent.h"
#include "IHistory.h"
#include "IDBFactory.h"
#include "IndexedDBParent.h"
#include "IndexedDatabaseManager.h"
#include "mozIApplication.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/ExternalHelperAppParent.h"
#include "mozilla/dom/PMemoryReportRequestParent.h"
#include "mozilla/dom/power/PowerManagerService.h"
#include "mozilla/dom/DOMStorageIPC.h"
#include "mozilla/dom/bluetooth/PBluetoothParent.h"
#include "mozilla/dom/devicestorage/DeviceStorageRequestParent.h"
#include "SmsParent.h"
#include "mozilla/Hal.h"
#include "mozilla/hal_sandbox/PHalParent.h"
#include "mozilla/ipc/TestShellParent.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "mozilla/layers/CompositorParent.h"
#include "mozilla/layers/ImageBridgeParent.h"
#include "mozilla/net/NeckoParent.h"
#include "mozilla/Preferences.h"
#include "mozilla/Services.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/unused.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsAppRunner.h"
#include "nsAutoPtr.h"
#include "nsCDefaultURIFixup.h"
#include "nsCExternalHandlerService.h"
#include "nsCOMPtr.h"
#include "nsChromeRegistryChrome.h"
#include "nsConsoleMessage.h"
#include "nsConsoleService.h"
#include "nsDebugImpl.h"
#include "nsDirectoryServiceDefs.h"
#include "nsDOMFile.h"
#include "nsExternalHelperAppService.h"
#include "nsFrameMessageManager.h"
#include "nsHashPropertyBag.h"
#include "nsIAlertsService.h"
#include "nsIAppsService.h"
#include "nsIClipboard.h"
#include "nsIDOMApplicationRegistry.h"
#include "nsIDOMGeoGeolocation.h"
#include "nsIDOMWakeLock.h"
#include "nsIDOMWindow.h"
#include "nsIFilePicker.h"
#include "nsIMemoryReporter.h"
#include "nsIMozBrowserFrame.h"
#include "nsIMutable.h"
#include "nsIObserverService.h"
#include "nsIPresShell.h"
#include "nsIRemoteBlob.h"
#include "nsIScriptError.h"
#include "nsIScriptSecurityManager.h"
#include "nsISupportsPrimitives.h"
#include "nsIURIFixup.h"
#include "nsIWindowWatcher.h"
#include "nsServiceManagerUtils.h"
#include "nsSystemInfo.h"
#include "nsThreadUtils.h"
#include "nsToolkitCompsCID.h"
#include "nsWidgetsCID.h"
#include "PreallocatedProcessManager.h"
#include "ProcessPriorityManager.h"
#include "SandboxHal.h"
#include "StructuredCloneUtils.h"
#include "TabParent.h"
#include "URIUtils.h"
#include "nsIWebBrowserChrome.h"
#include "nsIDocShell.h"
#ifdef ANDROID
# include "gfxAndroidPlatform.h"
#endif
#ifdef MOZ_CRASHREPORTER
# include "nsExceptionHandler.h"
# include "nsICrashReporter.h"
#endif
#ifdef MOZ_PERMISSIONS
# include "nsPermissionManager.h"
#endif
#ifdef MOZ_WIDGET_ANDROID
# include "AndroidBridge.h"
#endif
#ifdef MOZ_WIDGET_GONK
#include "nsIVolume.h"
#include "nsIVolumeService.h"
using namespace mozilla::system;
#endif
#ifdef MOZ_B2G_BT
#include "BluetoothParent.h"
#include "BluetoothService.h"
#endif
#include "JavaScriptParent.h"
#include "Crypto.h"
#ifdef MOZ_WEBSPEECH
#include "mozilla/dom/SpeechSynthesisParent.h"
#endif
static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID);
static const char* sClipboardTextFlavors[] = { kUnicodeMime };
using base::ChildPrivileges;
using base::KillProcess;
using namespace mozilla::dom::bluetooth;
using namespace mozilla::dom::devicestorage;
using namespace mozilla::dom::indexedDB;
using namespace mozilla::dom::power;
using namespace mozilla::dom::mobilemessage;
using namespace mozilla::hal;
using namespace mozilla::idl;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::net;
using namespace mozilla::jsipc;
namespace mozilla {
namespace dom {
#define NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC "ipc:network:set-offline"
// This represents a single measurement taken by a memory reporter in a child
// process and passed to this one. Its process is non-empty, and its amount is
// fixed.
class ChildMemoryReporter MOZ_FINAL : public MemoryReporterBase
{
public:
ChildMemoryReporter(const char* aProcess, const char* aPath, int32_t aKind,
int32_t aUnits, int64_t aAmount,
const char* aDescription)
: MemoryReporterBase(aPath, aKind, aUnits, aDescription)
, mProcess(aProcess)
, mAmount(aAmount)
{
}
NS_IMETHOD GetProcess(nsACString& aProcess)
{
aProcess.Assign(mProcess);
return NS_OK;
}
private:
int64_t Amount() { return mAmount; }
nsCString mProcess;
int64_t mAmount;
};
class MemoryReportRequestParent : public PMemoryReportRequestParent
{
public:
MemoryReportRequestParent();
virtual ~MemoryReportRequestParent();
virtual bool Recv__delete__(const InfallibleTArray<MemoryReport>& report);
private:
ContentParent* Owner()
{
return static_cast<ContentParent*>(Manager());
}
};
MemoryReportRequestParent::MemoryReportRequestParent()
{
MOZ_COUNT_CTOR(MemoryReportRequestParent);
}
bool
MemoryReportRequestParent::Recv__delete__(const InfallibleTArray<MemoryReport>& report)
{
Owner()->SetChildMemoryReporters(report);
return true;
}
MemoryReportRequestParent::~MemoryReportRequestParent()
{
MOZ_COUNT_DTOR(MemoryReportRequestParent);
}
/**
* A memory reporter for ContentParent objects themselves.
*/
class ContentParentMemoryReporter MOZ_FINAL : public nsIMemoryMultiReporter
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIMEMORYMULTIREPORTER
NS_MEMORY_REPORTER_MALLOC_SIZEOF_FUN(MallocSizeOf)
};
NS_IMPL_ISUPPORTS1(ContentParentMemoryReporter, nsIMemoryMultiReporter)
NS_IMETHODIMP
ContentParentMemoryReporter::GetName(nsACString& aName)
{
aName.AssignLiteral("ContentParents");
return NS_OK;
}
NS_IMETHODIMP
ContentParentMemoryReporter::CollectReports(nsIMemoryMultiReporterCallback* cb,
nsISupports* aClosure)
{
nsAutoTArray<ContentParent*, 16> cps;
ContentParent::GetAllEvenIfDead(cps);
for (uint32_t i = 0; i < cps.Length(); i++) {
ContentParent* cp = cps[i];
AsyncChannel* channel = cp->GetIPCChannel();
nsString friendlyName;
cp->FriendlyName(friendlyName);
cp->AddRef();
nsrefcnt refcnt = cp->Release();
const char* channelStr = "no channel";
uint32_t numQueuedMessages = 0;
if (channel) {
if (channel->Unsound_IsClosed()) {
channelStr = "closed channel";
} else {
channelStr = "open channel";
}
numQueuedMessages = channel->Unsound_NumQueuedMessages();
}
nsPrintfCString path("queued-ipc-messages/content-parent"
"(%s, pid=%d, %s, 0x%p, refcnt=%d)",
NS_ConvertUTF16toUTF8(friendlyName).get(),
cp->Pid(), channelStr, cp, refcnt);
NS_NAMED_LITERAL_CSTRING(desc,
"The number of unset IPC messages held in this ContentParent's "
"channel. A large value here might indicate that we're leaking "
"messages. Similarly, a ContentParent object for a process that's no "
"longer running could indicate that we're leaking ContentParents.");
nsresult rv = cb->Callback(/* process */ EmptyCString(),
path,
nsIMemoryReporter::KIND_OTHER,
nsIMemoryReporter::UNITS_COUNT,
numQueuedMessages,
desc,
aClosure);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
nsDataHashtable<nsStringHashKey, ContentParent*>* ContentParent::sAppContentParents;
nsTArray<ContentParent*>* ContentParent::sNonAppContentParents;
nsTArray<ContentParent*>* ContentParent::sPrivateContent;
StaticAutoPtr<LinkedList<ContentParent> > ContentParent::sContentParents;
// This is true when subprocess launching is enabled. This is the
// case between StartUp() and ShutDown() or JoinAllSubprocesses().
static bool sCanLaunchSubprocesses;
// The first content child has ID 1, so the chrome process can have ID 0.
static uint64_t gContentChildID = 1;
// We want the prelaunched process to know that it's for apps, but not
// actually for any app in particular. Use a magic manifest URL.
// Can't be a static constant.
#define MAGIC_PREALLOCATED_APP_MANIFEST_URL NS_LITERAL_STRING("{{template}}")
// PreallocateAppProcess is called by the PreallocatedProcessManager.
// ContentParent then takes this process back within
// MaybeTakePreallocatedAppProcess.
/*static*/ already_AddRefed<ContentParent>
ContentParent::PreallocateAppProcess()
{
nsRefPtr<ContentParent> process =
new ContentParent(/* app = */ nullptr,
/* isForBrowserElement = */ false,
/* isForPreallocated = */ true,
// Final privileges are set when we
// transform into our app.
base::PRIVILEGES_INHERIT,
PROCESS_PRIORITY_BACKGROUND);
process->Init();
return process.forget();
}
/*static*/ already_AddRefed<ContentParent>
ContentParent::MaybeTakePreallocatedAppProcess(const nsAString& aAppManifestURL,
ChildPrivileges aPrivs,
ProcessPriority aInitialPriority)
{
nsRefPtr<ContentParent> process = PreallocatedProcessManager::Take();
if (!process) {
return nullptr;
}
if (!process->SetPriorityAndCheckIsAlive(aInitialPriority) ||
!process->TransformPreallocatedIntoApp(aAppManifestURL, aPrivs)) {
// Kill the process just in case it's not actually dead; we don't want
// to "leak" this process!
process->KillHard();
return nullptr;
}
return process.forget();
}
/*static*/ void
ContentParent::StartUp()
{
if (XRE_GetProcessType() != GeckoProcessType_Default) {
return;
}
nsRefPtr<ContentParentMemoryReporter> mr = new ContentParentMemoryReporter();
NS_RegisterMemoryMultiReporter(mr);
sCanLaunchSubprocesses = true;
// Try to preallocate a process that we can transform into an app later.
PreallocatedProcessManager::AllocateAfterDelay();
}
/*static*/ void
ContentParent::ShutDown()
{
// No-op for now. We rely on normal process shutdown and
// ClearOnShutdown() to clean up our state.
sCanLaunchSubprocesses = false;
}
/*static*/ void
ContentParent::JoinProcessesIOThread(const nsTArray<ContentParent*>* aProcesses,
Monitor* aMonitor, bool* aDone)
{
const nsTArray<ContentParent*>& processes = *aProcesses;
for (uint32_t i = 0; i < processes.Length(); ++i) {
if (GeckoChildProcessHost* process = processes[i]->mSubprocess) {
process->Join();
}
}
{
MonitorAutoLock lock(*aMonitor);
*aDone = true;
lock.Notify();
}
// Don't touch any arguments to this function from now on.
}
/*static*/ void
ContentParent::JoinAllSubprocesses()
{
MOZ_ASSERT(NS_IsMainThread());
nsAutoTArray<ContentParent*, 8> processes;
GetAll(processes);
if (processes.IsEmpty()) {
printf_stderr("There are no live subprocesses.");
return;
}
printf_stderr("Subprocesses are still alive. Doing emergency join.\n");
bool done = false;
Monitor monitor("mozilla.dom.ContentParent.JoinAllSubprocesses");
XRE_GetIOMessageLoop()->PostTask(FROM_HERE,
NewRunnableFunction(
&ContentParent::JoinProcessesIOThread,
&processes, &monitor, &done));
{
MonitorAutoLock lock(monitor);
while (!done) {
lock.Wait();
}
}
sCanLaunchSubprocesses = false;
}
/*static*/ already_AddRefed<ContentParent>
ContentParent::GetNewOrUsed(bool aForBrowserElement)
{
if (!sNonAppContentParents)
sNonAppContentParents = new nsTArray<ContentParent*>();
int32_t maxContentProcesses = Preferences::GetInt("dom.ipc.processCount", 1);
if (maxContentProcesses < 1)
maxContentProcesses = 1;
if (sNonAppContentParents->Length() >= uint32_t(maxContentProcesses)) {
uint32_t idx = rand() % sNonAppContentParents->Length();
nsRefPtr<ContentParent> p = (*sNonAppContentParents)[idx];
NS_ASSERTION(p->IsAlive(), "Non-alive contentparent in sNonAppContentParents?");
return p.forget();
}
nsRefPtr<ContentParent> p =
new ContentParent(/* app = */ nullptr,
aForBrowserElement,
/* isForPreallocated = */ false,
base::PRIVILEGES_DEFAULT,
PROCESS_PRIORITY_FOREGROUND);
p->Init();
sNonAppContentParents->AppendElement(p);
return p.forget();
}
namespace {
struct SpecialPermission {
const char* perm; // an app permission
ChildPrivileges privs; // the OS privilege it requires
};
}
static ChildPrivileges
PrivilegesForApp(mozIApplication* aApp)
{
const SpecialPermission specialPermissions[] = {
// FIXME/bug 785592: implement a CameraBridge so we don't have
// to hack around with OS permissions
{ "camera", base::PRIVILEGES_CAMERA }
};
for (size_t i = 0; i < ArrayLength(specialPermissions); ++i) {
const char* const permission = specialPermissions[i].perm;
bool hasPermission = false;
if (NS_FAILED(aApp->HasPermission(permission, &hasPermission))) {
NS_WARNING("Unable to check permissions. Breakage may follow.");
break;
} else if (hasPermission) {
return specialPermissions[i].privs;
}
}
return base::PRIVILEGES_DEFAULT;
}
/*static*/ ProcessPriority
ContentParent::GetInitialProcessPriority(Element* aFrameElement)
{
// Frames with mozapptype == critical which are expecting a system message
// get FOREGROUND_HIGH priority. All other frames get FOREGROUND priority.
if (!aFrameElement) {
return PROCESS_PRIORITY_FOREGROUND;
}
if (!aFrameElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mozapptype,
NS_LITERAL_STRING("critical"), eCaseMatters)) {
return PROCESS_PRIORITY_FOREGROUND;
}
nsCOMPtr<nsIMozBrowserFrame> browserFrame =
do_QueryInterface(aFrameElement);
if (!browserFrame) {
return PROCESS_PRIORITY_FOREGROUND;
}
return browserFrame->GetIsExpectingSystemMessage() ?
PROCESS_PRIORITY_FOREGROUND_HIGH :
PROCESS_PRIORITY_FOREGROUND;
}
/*static*/ TabParent*
ContentParent::CreateBrowserOrApp(const TabContext& aContext,
Element* aFrameElement)
{
if (!sCanLaunchSubprocesses) {
return nullptr;
}
if (aContext.IsBrowserElement() || !aContext.HasOwnApp()) {
if (nsRefPtr<ContentParent> cp = GetNewOrUsed(aContext.IsBrowserElement())) {
nsRefPtr<TabParent> tp(new TabParent(cp, aContext));
tp->SetOwnerElement(aFrameElement);
uint32_t chromeFlags = 0;
// Propagate the private-browsing status of the element's parent
// docshell to the remote docshell, via the chrome flags.
nsCOMPtr<Element> frameElement = do_QueryInterface(aFrameElement);
MOZ_ASSERT(frameElement);
nsIDocShell* docShell =
frameElement->OwnerDoc()->GetWindow()->GetDocShell();
MOZ_ASSERT(docShell);
nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(docShell);
if (loadContext && loadContext->UsePrivateBrowsing()) {
chromeFlags |= nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW;
}
bool affectLifetime;
docShell->GetAffectPrivateSessionLifetime(&affectLifetime);
if (affectLifetime) {
chromeFlags |= nsIWebBrowserChrome::CHROME_PRIVATE_LIFETIME;
}
PBrowserParent* browser = cp->SendPBrowserConstructor(
tp.forget().get(), // DeallocPBrowserParent() releases this ref.
aContext.AsIPCTabContext(),
chromeFlags);
return static_cast<TabParent*>(browser);
}
return nullptr;
}
// If we got here, we have an app and we're not a browser element. ownApp
// shouldn't be null, because we otherwise would have gone into the
// !HasOwnApp() branch above.
nsCOMPtr<mozIApplication> ownApp = aContext.GetOwnApp();
if (!sAppContentParents) {
sAppContentParents =
new nsDataHashtable<nsStringHashKey, ContentParent*>();
sAppContentParents->Init();
}
// Each app gets its own ContentParent instance.
nsAutoString manifestURL;
if (NS_FAILED(ownApp->GetManifestURL(manifestURL))) {
NS_ERROR("Failed to get manifest URL");
return nullptr;
}
ProcessPriority initialPriority = GetInitialProcessPriority(aFrameElement);
nsRefPtr<ContentParent> p = sAppContentParents->Get(manifestURL);
if (p) {
// Check that the process is still alive and set its priority.
// Hopefully the process won't die after this point, if this call
// succeeds.
if (!p->SetPriorityAndCheckIsAlive(initialPriority)) {
p = nullptr;
}
}
if (!p) {
ChildPrivileges privs = PrivilegesForApp(ownApp);
p = MaybeTakePreallocatedAppProcess(manifestURL, privs,
initialPriority);
if (!p) {
NS_WARNING("Unable to use pre-allocated app process");
p = new ContentParent(ownApp,
/* isForBrowserElement = */ false,
/* isForPreallocated = */ false,
privs,
initialPriority);
p->Init();
}
sAppContentParents->Put(manifestURL, p);
}
nsRefPtr<TabParent> tp = new TabParent(p, aContext);
tp->SetOwnerElement(aFrameElement);
PBrowserParent* browser = p->SendPBrowserConstructor(
nsRefPtr<TabParent>(tp).forget().get(), // DeallocPBrowserParent() releases this ref.
aContext.AsIPCTabContext(),
/* chromeFlags */ 0);
p->MaybeTakeCPUWakeLock(aFrameElement);
return static_cast<TabParent*>(browser);
}
void
ContentParent::GetAll(nsTArray<ContentParent*>& aArray)
{
aArray.Clear();
if (!sContentParents) {
return;
}
for (ContentParent* cp = sContentParents->getFirst(); cp;
cp = cp->getNext()) {
if (cp->mIsAlive) {
aArray.AppendElement(cp);
}
}
}
void
ContentParent::GetAllEvenIfDead(nsTArray<ContentParent*>& aArray)
{
aArray.Clear();
if (!sContentParents) {
return;
}
for (ContentParent* cp = sContentParents->getFirst(); cp;
cp = cp->getNext()) {
aArray.AppendElement(cp);
}
}
void
ContentParent::Init()
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->AddObserver(this, "xpcom-shutdown", false);
obs->AddObserver(this, NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC, false);
obs->AddObserver(this, "child-memory-reporter-request", false);
obs->AddObserver(this, "memory-pressure", false);
obs->AddObserver(this, "child-gc-request", false);
obs->AddObserver(this, "child-cc-request", false);
obs->AddObserver(this, "last-pb-context-exited", false);
obs->AddObserver(this, "file-watcher-update", false);
#ifdef MOZ_WIDGET_GONK
obs->AddObserver(this, NS_VOLUME_STATE_CHANGED, false);
#endif
#ifdef ACCESSIBILITY
obs->AddObserver(this, "a11y-init-or-shutdown", false);
#endif
}
Preferences::AddStrongObserver(this, "");
nsCOMPtr<nsIThreadInternal>
threadInt(do_QueryInterface(NS_GetCurrentThread()));
if (threadInt) {
threadInt->AddObserver(this);
}
if (obs) {
obs->NotifyObservers(static_cast<nsIObserver*>(this), "ipc:content-created", nullptr);
}
#ifdef ACCESSIBILITY
// If accessibility is running in chrome process then start it in content
// process.
if (nsIPresShell::IsAccessibilityActive()) {
unused << SendActivateA11y();
}
#endif
DebugOnly<FileUpdateDispatcher*> observer = FileUpdateDispatcher::GetSingleton();
NS_ASSERTION(observer, "FileUpdateDispatcher is null");
}
namespace {
class SystemMessageHandledListener MOZ_FINAL
: public nsITimerCallback
, public LinkedListElement<SystemMessageHandledListener>
{
public:
NS_DECL_ISUPPORTS
SystemMessageHandledListener() {}
static void OnSystemMessageHandled()
{
if (!sListeners) {
return;
}
SystemMessageHandledListener* listener = sListeners->popFirst();
if (!listener) {
return;
}
// Careful: ShutDown() may delete |this|.
listener->ShutDown();
}
void Init(nsIDOMMozWakeLock* aWakeLock)
{
MOZ_ASSERT(!mWakeLock);
MOZ_ASSERT(!mTimer);
// mTimer keeps a strong reference to |this|. When this object's
// destructor runs, it will remove itself from the LinkedList.
if (!sListeners) {
sListeners = new LinkedList<SystemMessageHandledListener>();
ClearOnShutdown(&sListeners);
}
sListeners->insertBack(this);
mWakeLock = aWakeLock;
mTimer = do_CreateInstance("@mozilla.org/timer;1");
uint32_t timeoutSec =
Preferences::GetInt("dom.ipc.systemMessageCPULockTimeoutSec", 30);
mTimer->InitWithCallback(this, timeoutSec * 1000,
nsITimer::TYPE_ONE_SHOT);
}
NS_IMETHOD Notify(nsITimer* aTimer)
{
// Careful: ShutDown() may delete |this|.
ShutDown();
return NS_OK;
}
private:
static StaticAutoPtr<LinkedList<SystemMessageHandledListener> > sListeners;
void ShutDown()
{
nsRefPtr<SystemMessageHandledListener> kungFuDeathGrip = this;
mWakeLock->Unlock();
if (mTimer) {
mTimer->Cancel();
mTimer = nullptr;
}
}
nsCOMPtr<nsIDOMMozWakeLock> mWakeLock;
nsCOMPtr<nsITimer> mTimer;
};
StaticAutoPtr<LinkedList<SystemMessageHandledListener> >
SystemMessageHandledListener::sListeners;
NS_IMPL_ISUPPORTS1(SystemMessageHandledListener,
nsITimerCallback)
} // anonymous namespace
void
ContentParent::MaybeTakeCPUWakeLock(Element* aFrameElement)
{
// Take the CPU wake lock on behalf of this processs if it's expecting a
// system message. We'll release the CPU lock once the message is
// delivered, or after some period of time, which ever comes first.
nsCOMPtr<nsIMozBrowserFrame> browserFrame =
do_QueryInterface(aFrameElement);
if (!browserFrame ||
!browserFrame->GetIsExpectingSystemMessage()) {
return;
}
nsRefPtr<PowerManagerService> pms = PowerManagerService::GetInstance();
nsCOMPtr<nsIDOMMozWakeLock> lock =
pms->NewWakeLockOnBehalfOfProcess(NS_LITERAL_STRING("cpu"), this);
// This object's Init() function keeps it alive.
nsRefPtr<SystemMessageHandledListener> listener =
new SystemMessageHandledListener();
listener->Init(lock);
}
bool
ContentParent::SetPriorityAndCheckIsAlive(ProcessPriority aPriority)
{
ProcessPriorityManager::SetProcessPriority(this, aPriority);
// Now that we've set this process's priority, check whether the process is
// still alive. Hopefully we've set the priority to FOREGROUND*, so the
// process won't unexpectedly crash after this point!
//
// It's not legal to call DidProcessCrash on Windows if the process has not
// terminated yet, so we have to skip this check here.
#ifndef XP_WIN
bool exited = false;
base::DidProcessCrash(&exited, mSubprocess->GetChildProcessHandle());
if (exited) {
return false;
}
#endif
return true;
}
// Helper for ContentParent::TransformPreallocatedIntoApp.
static void
TryGetNameFromManifestURL(const nsAString& aManifestURL,
nsAString& aName)
{
aName.Truncate();
if (aManifestURL.IsEmpty() ||
aManifestURL == MAGIC_PREALLOCATED_APP_MANIFEST_URL) {
return;
}
nsCOMPtr<nsIAppsService> appsService = do_GetService(APPS_SERVICE_CONTRACTID);
NS_ENSURE_TRUE_VOID(appsService);
nsCOMPtr<mozIDOMApplication> domApp;
appsService->GetAppByManifestURL(aManifestURL, getter_AddRefs(domApp));
nsCOMPtr<mozIApplication> app = do_QueryInterface(domApp);
if (!app) {
return;
}
app->GetName(aName);
}
bool
ContentParent::TransformPreallocatedIntoApp(const nsAString& aAppManifestURL,
ChildPrivileges aPrivs)
{
MOZ_ASSERT(IsPreallocated());
mAppManifestURL = aAppManifestURL;
TryGetNameFromManifestURL(aAppManifestURL, mAppName);
return SendSetProcessPrivileges(aPrivs);
}
void
ContentParent::ShutDownProcess(bool aCloseWithError)
{
const InfallibleTArray<PIndexedDBParent*>& idbParents =
ManagedPIndexedDBParent();
for (uint32_t i = 0; i < idbParents.Length(); ++i) {
static_cast<IndexedDBParent*>(idbParents[i])->Disconnect();
}
// If Close() fails with an error, we'll end up back in this function, but
// with aCloseWithError = true. It's important that we call
// CloseWithError() in this case; see bug 895204.
if (!aCloseWithError && !mCalledClose) {
// Close() can only be called once: It kicks off the destruction
// sequence.
mCalledClose = true;
Close();
}
if (aCloseWithError && !mCalledCloseWithError) {
AsyncChannel* channel = GetIPCChannel();
if (channel) {
mCalledCloseWithError = true;
channel->CloseWithError();
}
}
// NB: must MarkAsDead() here so that this isn't accidentally
// returned from Get*() while in the midst of shutdown.
MarkAsDead();
// A ContentParent object might not get freed until after XPCOM shutdown has
// shut down the cycle collector. But by then it's too late to release any
// CC'ed objects, so we need to null them out here, while we still can. See
// bug 899761.
mMemoryReporters.Clear();
if (mMessageManager) {
mMessageManager->Disconnect();
mMessageManager = nullptr;
}
}
void
ContentParent::MarkAsDead()
{
if (!mAppManifestURL.IsEmpty()) {
if (sAppContentParents) {
sAppContentParents->Remove(mAppManifestURL);
if (!sAppContentParents->Count()) {
delete sAppContentParents;
sAppContentParents = NULL;
}
}
} else if (sNonAppContentParents) {
sNonAppContentParents->RemoveElement(this);
if (!sNonAppContentParents->Length()) {
delete sNonAppContentParents;
sNonAppContentParents = NULL;
}
}
if (sPrivateContent) {
sPrivateContent->RemoveElement(this);
if (!sPrivateContent->Length()) {
delete sPrivateContent;
sPrivateContent = NULL;
}
}
mIsAlive = false;
}
void
ContentParent::OnChannelConnected(int32_t pid)
{
ProcessHandle handle;
if (!base::OpenPrivilegedProcessHandle(pid, &handle)) {
NS_WARNING("Can't open handle to child process.");
}
else {
SetOtherProcess(handle);
#if defined(ANDROID) || defined(LINUX)
// Check nice preference
int32_t nice = Preferences::GetInt("dom.ipc.content.nice", 0);
// Environment variable overrides preference
char* relativeNicenessStr = getenv("MOZ_CHILD_PROCESS_RELATIVE_NICENESS");
if (relativeNicenessStr) {
nice = atoi(relativeNicenessStr);
}
/* make the GUI thread have higher priority on single-cpu devices */
nsCOMPtr<nsIPropertyBag2> infoService = do_GetService(NS_SYSTEMINFO_CONTRACTID);
if (infoService) {
int32_t cpus;
nsresult rv = infoService->GetPropertyAsInt32(NS_LITERAL_STRING("cpucount"), &cpus);
if (NS_FAILED(rv)) {
cpus = 1;
}
if (nice != 0 && cpus == 1) {
setpriority(PRIO_PROCESS, pid, getpriority(PRIO_PROCESS, pid) + nice);
}
}
#endif
}
}
void
ContentParent::ProcessingError(Result what)
{
if (MsgDropped == what) {
// Messages sent after crashes etc. are not a big deal.
return;
}
// Other errors are big deals.
KillHard();
}
namespace {
void
DelayedDeleteSubprocess(GeckoChildProcessHost* aSubprocess)
{
XRE_GetIOMessageLoop()
->PostTask(FROM_HERE,
new DeleteTask<GeckoChildProcessHost>(aSubprocess));
}
// This runnable only exists to delegate ownership of the
// ContentParent to this runnable, until it's deleted by the event
// system.
struct DelayedDeleteContentParentTask : public nsRunnable
{
DelayedDeleteContentParentTask(ContentParent* aObj) : mObj(aObj) { }
// No-op
NS_IMETHODIMP Run() { return NS_OK; }
nsRefPtr<ContentParent> mObj;
};
}
void
ContentParent::ActorDestroy(ActorDestroyReason why)
{
if (mForceKillTask) {
mForceKillTask->Cancel();
mForceKillTask = nullptr;
}
nsRefPtr<nsFrameMessageManager> ppm = mMessageManager;
if (ppm) {
ppm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(ppm.get()),
CHILD_PROCESS_SHUTDOWN_MESSAGE, false,
nullptr, nullptr, nullptr);
}
nsCOMPtr<nsIThreadObserver>
kungFuDeathGrip(static_cast<nsIThreadObserver*>(this));
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->RemoveObserver(static_cast<nsIObserver*>(this), "xpcom-shutdown");
obs->RemoveObserver(static_cast<nsIObserver*>(this), "memory-pressure");
obs->RemoveObserver(static_cast<nsIObserver*>(this), "child-memory-reporter-request");
obs->RemoveObserver(static_cast<nsIObserver*>(this), NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC);
obs->RemoveObserver(static_cast<nsIObserver*>(this), "child-gc-request");
obs->RemoveObserver(static_cast<nsIObserver*>(this), "child-cc-request");
obs->RemoveObserver(static_cast<nsIObserver*>(this), "last-pb-context-exited");
obs->RemoveObserver(static_cast<nsIObserver*>(this), "file-watcher-update");
#ifdef MOZ_WIDGET_GONK
obs->RemoveObserver(static_cast<nsIObserver*>(this), NS_VOLUME_STATE_CHANGED);
#endif
#ifdef ACCESSIBILITY
obs->RemoveObserver(static_cast<nsIObserver*>(this), "a11y-init-or-shutdown");
#endif
}
if (ppm) {
ppm->Disconnect();
}
// clear the child memory reporters
ClearChildMemoryReporters();
// remove the global remote preferences observers
Preferences::RemoveObserver(this, "");
RecvRemoveGeolocationListener();
mConsoleService = nullptr;
nsCOMPtr<nsIThreadInternal>
threadInt(do_QueryInterface(NS_GetCurrentThread()));
if (threadInt)
threadInt->RemoveObserver(this);
MarkAsDead();
if (obs) {
nsRefPtr<nsHashPropertyBag> props = new nsHashPropertyBag();
props->Init();
props->SetPropertyAsUint64(NS_LITERAL_STRING("childID"), mChildID);
if (AbnormalShutdown == why) {
props->SetPropertyAsBool(NS_LITERAL_STRING("abnormal"), true);
#ifdef MOZ_CRASHREPORTER
// There's a window in which child processes can crash
// after IPC is established, but before a crash reporter
// is created.
if (ManagedPCrashReporterParent().Length() > 0) {
CrashReporterParent* crashReporter =
static_cast<CrashReporterParent*>(ManagedPCrashReporterParent()[0]);
// If we're an app process, always stomp the latest URI
// loaded in the child process with our manifest URL. We
// would rather associate the crashes with apps than
// random child windows loaded in them.
//
// XXX would be nice if we could get both ...
if (!mAppManifestURL.IsEmpty()) {
crashReporter->AnnotateCrashReport(NS_LITERAL_CSTRING("URL"),
NS_ConvertUTF16toUTF8(mAppManifestURL));
}
crashReporter->GenerateCrashReport(this, NULL);
nsAutoString dumpID(crashReporter->ChildDumpID());
props->SetPropertyAsAString(NS_LITERAL_STRING("dumpID"), dumpID);
}
#endif
}
obs->NotifyObservers((nsIPropertyBag2*) props, "ipc:content-shutdown", nullptr);
}
// If the child process was terminated due to a SIGKIL, ShutDownProcess
// might not have been called yet. We must call it to ensure that our
// channel is closed, etc.
ShutDownProcess(/* closeWithError */ true);
MessageLoop::current()->
PostTask(FROM_HERE,
NewRunnableFunction(DelayedDeleteSubprocess, mSubprocess));
mSubprocess = NULL;
// IPDL rules require actors to live on past ActorDestroy, but it
// may be that the kungFuDeathGrip above is the last reference to
// |this|. If so, when we go out of scope here, we're deleted and
// all hell breaks loose.
//
// This runnable ensures that a reference to |this| lives on at
// least until after the current task finishes running.
NS_DispatchToCurrentThread(new DelayedDeleteContentParentTask(this));
}
void
ContentParent::NotifyTabDestroying(PBrowserParent* aTab)
{
// There can be more than one PBrowser for a given app process
// because of popup windows. PBrowsers can also destroy
// concurrently. When all the PBrowsers are destroying, kick off
// another task to ensure the child process *really* shuts down,
// even if the PBrowsers themselves never finish destroying.
int32_t numLiveTabs = ManagedPBrowserParent().Length();
++mNumDestroyingTabs;
if (mNumDestroyingTabs != numLiveTabs) {
return;
}
// We're dying now, so prevent this content process from being
// recycled during its shutdown procedure.
MarkAsDead();
MOZ_ASSERT(!mForceKillTask);
int32_t timeoutSecs =
Preferences::GetInt("dom.ipc.tabs.shutdownTimeoutSecs", 5);
if (timeoutSecs > 0) {
MessageLoop::current()->PostDelayedTask(
FROM_HERE,
mForceKillTask = NewRunnableMethod(this, &ContentParent::KillHard),
timeoutSecs * 1000);
}
}
void
ContentParent::NotifyTabDestroyed(PBrowserParent* aTab,
bool aNotifiedDestroying)
{
if (aNotifiedDestroying) {
--mNumDestroyingTabs;
}
// There can be more than one PBrowser for a given app process
// because of popup windows. When the last one closes, shut
// us down.
if (ManagedPBrowserParent().Length() == 1) {
MessageLoop::current()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ContentParent::ShutDownProcess,
/* force */ false));
}
}
jsipc::JavaScriptParent*
ContentParent::GetCPOWManager()
{
if (ManagedPJavaScriptParent().Length()) {
return static_cast<JavaScriptParent*>(ManagedPJavaScriptParent()[0]);
}
JavaScriptParent* actor = static_cast<JavaScriptParent*>(SendPJavaScriptConstructor());
return actor;
}
TestShellParent*
ContentParent::CreateTestShell()
{
return static_cast<TestShellParent*>(SendPTestShellConstructor());
}
bool
ContentParent::DestroyTestShell(TestShellParent* aTestShell)
{
return PTestShellParent::Send__delete__(aTestShell);
}
TestShellParent*
ContentParent::GetTestShellSingleton()
{
if (!ManagedPTestShellParent().Length())
return nullptr;
return static_cast<TestShellParent*>(ManagedPTestShellParent()[0]);
}
ContentParent::ContentParent(mozIApplication* aApp,
bool aIsForBrowser,
bool aIsForPreallocated,
ChildPrivileges aOSPrivileges,
ProcessPriority aInitialPriority /* = PROCESS_PRIORITY_FOREGROUND */)
: mSubprocess(nullptr)
, mOSPrivileges(aOSPrivileges)
, mChildID(gContentChildID++)
, mGeolocationWatchID(-1)
, mForceKillTask(nullptr)
, mNumDestroyingTabs(0)
, mIsAlive(true)
, mSendPermissionUpdates(false)
, mIsForBrowser(aIsForBrowser)
, mCalledClose(false)
, mCalledCloseWithError(false)
, mCalledKillHard(false)
{
// No more than one of !!aApp, aIsForBrowser, and aIsForPreallocated should
// be true.
MOZ_ASSERT(!!aApp + aIsForBrowser + aIsForPreallocated <= 1);
// Insert ourselves into the global linked list of ContentParent objects.
if (!sContentParents) {
sContentParents = new LinkedList<ContentParent>();
}
sContentParents->insertBack(this);
if (aApp) {
aApp->GetManifestURL(mAppManifestURL);
aApp->GetName(mAppName);
} else if (aIsForPreallocated) {
mAppManifestURL = MAGIC_PREALLOCATED_APP_MANIFEST_URL;
}
// From this point on, NS_WARNING, NS_ASSERTION, etc. should print out the
// PID along with the warning.
nsDebugImpl::SetMultiprocessMode("Parent");
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
mSubprocess = new GeckoChildProcessHost(GeckoProcessType_Content,
aOSPrivileges);
mSubprocess->LaunchAndWaitForProcessHandle();
Open(mSubprocess->GetChannel(), mSubprocess->GetChildProcessHandle());
// Set the subprocess's priority. We do this early on because we're likely
// /lowering/ the process's CPU and memory priority, which it has inherited
// from this process.
//
// This call can cause us to send IPC messages to the child process, so it
// must come after the Open() call above.
ProcessPriorityManager::SetProcessPriority(this, aInitialPriority);
// NB: internally, this will send an IPC message to the child
// process to get it to create the CompositorChild. This
// message goes through the regular IPC queue for this
// channel, so delivery will happen-before any other messages
// we send. The CompositorChild must be created before any
// PBrowsers are created, because they rely on the Compositor
// already being around. (Creation is async, so can't happen
// on demand.)
bool useOffMainThreadCompositing = !!CompositorParent::CompositorLoop();
if (useOffMainThreadCompositing) {
DebugOnly<bool> opened = PCompositor::Open(this);
MOZ_ASSERT(opened);
if (Preferences::GetBool("layers.async-video.enabled",false)) {
opened = PImageBridge::Open(this);
MOZ_ASSERT(opened);
}
}
nsCOMPtr<nsIChromeRegistry> registrySvc = nsChromeRegistry::GetService();
nsChromeRegistryChrome* chromeRegistry =
static_cast<nsChromeRegistryChrome*>(registrySvc.get());
chromeRegistry->SendRegisteredChrome(this);
mMessageManager = nsFrameMessageManager::NewProcessMessageManager(this);
if (gAppData) {
nsCString version(gAppData->version);
nsCString buildID(gAppData->buildID);
nsCString name(gAppData->name);
nsCString UAName(gAppData->UAName);
//Sending all information to content process
unused << SendAppInfo(version, buildID, name, UAName);
}
}
ContentParent::~ContentParent()
{
if (mForceKillTask) {
mForceKillTask->Cancel();
}
if (OtherProcess())
base::CloseProcessHandle(OtherProcess());
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
// We should be removed from all these lists in ActorDestroy.
MOZ_ASSERT(!sPrivateContent || !sPrivateContent->Contains(this));
if (mAppManifestURL.IsEmpty()) {
MOZ_ASSERT(!sNonAppContentParents ||
!sNonAppContentParents->Contains(this));
} else {
// In general, we expect sAppContentParents->Get(mAppManifestURL) to be
// NULL. But it could be that we created another ContentParent for this
// app after we did this->ActorDestroy(), so the right check is that
// sAppContentParents->Get(mAppManifestURL) != this.
MOZ_ASSERT(!sAppContentParents ||
sAppContentParents->Get(mAppManifestURL) != this);
}
}
bool
ContentParent::IsAlive()
{
return mIsAlive;
}
bool
ContentParent::IsForApp()
{
return !mAppManifestURL.IsEmpty();
}
int32_t
ContentParent::Pid()
{
if (!mSubprocess || !mSubprocess->GetChildProcessHandle()) {
return -1;
}
return base::GetProcId(mSubprocess->GetChildProcessHandle());
}
bool
ContentParent::RecvReadPrefsArray(InfallibleTArray<PrefSetting>* aPrefs)
{
Preferences::GetPreferences(aPrefs);
return true;
}
bool
ContentParent::RecvReadFontList(InfallibleTArray<FontListEntry>* retValue)
{
#ifdef ANDROID
gfxAndroidPlatform::GetPlatform()->GetFontList(retValue);
#endif
return true;
}
bool
ContentParent::RecvReadPermissions(InfallibleTArray<IPC::Permission>* aPermissions)
{
#ifdef MOZ_PERMISSIONS
nsCOMPtr<nsIPermissionManager> permissionManagerIface =
do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
nsPermissionManager* permissionManager =
static_cast<nsPermissionManager*>(permissionManagerIface.get());
NS_ABORT_IF_FALSE(permissionManager,
"We have no permissionManager in the Chrome process !");
nsCOMPtr<nsISimpleEnumerator> enumerator;
DebugOnly<nsresult> rv = permissionManager->GetEnumerator(getter_AddRefs(enumerator));
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv), "Could not get enumerator!");
while(1) {
bool hasMore;
enumerator->HasMoreElements(&hasMore);
if (!hasMore)
break;
nsCOMPtr<nsISupports> supp;
enumerator->GetNext(getter_AddRefs(supp));
nsCOMPtr<nsIPermission> perm = do_QueryInterface(supp);
nsCString host;
perm->GetHost(host);
uint32_t appId;
perm->GetAppId(&appId);
bool isInBrowserElement;
perm->GetIsInBrowserElement(&isInBrowserElement);
nsCString type;
perm->GetType(type);
uint32_t capability;
perm->GetCapability(&capability);
uint32_t expireType;
perm->GetExpireType(&expireType);
int64_t expireTime;
perm->GetExpireTime(&expireTime);
aPermissions->AppendElement(IPC::Permission(host, appId,
isInBrowserElement, type,
capability, expireType,
expireTime));
}
// Ask for future changes
mSendPermissionUpdates = true;
#endif
return true;
}
bool
ContentParent::RecvSetClipboardText(const nsString& text,
const bool& isPrivateData,
const int32_t& whichClipboard)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
nsCOMPtr<nsISupportsString> dataWrapper =
do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, true);
rv = dataWrapper->SetData(text);
NS_ENSURE_SUCCESS(rv, true);
nsCOMPtr<nsITransferable> trans = do_CreateInstance("@mozilla.org/widget/transferable;1", &rv);
NS_ENSURE_SUCCESS(rv, true);
trans->Init(nullptr);
// If our data flavor has already been added, this will fail. But we don't care
trans->AddDataFlavor(kUnicodeMime);
trans->SetIsPrivateData(isPrivateData);
nsCOMPtr<nsISupports> nsisupportsDataWrapper =
do_QueryInterface(dataWrapper);
rv = trans->SetTransferData(kUnicodeMime, nsisupportsDataWrapper,
text.Length() * sizeof(PRUnichar));
NS_ENSURE_SUCCESS(rv, true);
clipboard->SetData(trans, NULL, whichClipboard);
return true;
}
bool
ContentParent::RecvGetClipboardText(const int32_t& whichClipboard, nsString* text)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
nsCOMPtr<nsITransferable> trans = do_CreateInstance("@mozilla.org/widget/transferable;1", &rv);
NS_ENSURE_SUCCESS(rv, true);
trans->Init(nullptr);
clipboard->GetData(trans, whichClipboard);
nsCOMPtr<nsISupports> tmp;
uint32_t len;
rv = trans->GetTransferData(kUnicodeMime, getter_AddRefs(tmp), &len);
if (NS_FAILED(rv))
return false;
nsCOMPtr<nsISupportsString> supportsString = do_QueryInterface(tmp);
// No support for non-text data
if (!supportsString)
return false;
supportsString->GetData(*text);
return true;
}
bool
ContentParent::RecvEmptyClipboard()
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
clipboard->EmptyClipboard(nsIClipboard::kGlobalClipboard);
return true;
}
bool
ContentParent::RecvClipboardHasText(bool* hasText)
{
nsresult rv;
nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID, &rv));
NS_ENSURE_SUCCESS(rv, true);
clipboard->HasDataMatchingFlavors(sClipboardTextFlavors, 1,
nsIClipboard::kGlobalClipboard, hasText);
return true;
}
bool
ContentParent::RecvGetSystemColors(const uint32_t& colorsCount, InfallibleTArray<uint32_t>* colors)
{
#ifdef MOZ_WIDGET_ANDROID
NS_ASSERTION(AndroidBridge::Bridge() != nullptr, "AndroidBridge is not available");
if (AndroidBridge::Bridge() == nullptr) {
// Do not fail - the colors won't be right, but it's not critical
return true;
}
colors->AppendElements(colorsCount);
// The array elements correspond to the members of AndroidSystemColors structure,
// so just pass the pointer to the elements buffer
AndroidBridge::Bridge()->GetSystemColors((AndroidSystemColors*)colors->Elements());
#endif
return true;
}
bool
ContentParent::RecvGetIconForExtension(const nsCString& aFileExt, const uint32_t& aIconSize, InfallibleTArray<uint8_t>* bits)
{
#ifdef MOZ_WIDGET_ANDROID
NS_ASSERTION(AndroidBridge::Bridge() != nullptr, "AndroidBridge is not available");
if (AndroidBridge::Bridge() == nullptr) {
// Do not fail - just no icon will be shown
return true;
}
bits->AppendElements(aIconSize * aIconSize * 4);
AndroidBridge::Bridge()->GetIconForExtension(aFileExt, aIconSize, bits->Elements());
#endif
return true;
}
bool
ContentParent::RecvGetShowPasswordSetting(bool* showPassword)
{
// default behavior is to show the last password character
*showPassword = true;
#ifdef MOZ_WIDGET_ANDROID
NS_ASSERTION(AndroidBridge::Bridge() != nullptr, "AndroidBridge is not available");
if (AndroidBridge::Bridge() != nullptr)
*showPassword = AndroidBridge::Bridge()->GetShowPasswordSetting();
#endif
return true;
}
bool
ContentParent::RecvFirstIdle()
{
// When the ContentChild goes idle, it sends us a FirstIdle message which we
// use as an indicator that it's a good time to prelaunch another process.
// If we prelaunch any sooner than this, then we'll be competing with the
// child process and slowing it down.
PreallocatedProcessManager::AllocateAfterDelay();
return true;
}
bool
ContentParent::RecvAudioChannelGetMuted(const AudioChannelType& aType,
const bool& aElementHidden,
const bool& aElementWasHidden,
bool* aValue)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
*aValue = false;
if (service) {
*aValue = service->GetMutedInternal(aType, mChildID,
aElementHidden, aElementWasHidden);
}
return true;
}
bool
ContentParent::RecvAudioChannelRegisterType(const AudioChannelType& aType)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
if (service) {
service->RegisterType(aType, mChildID);
}
return true;
}
bool
ContentParent::RecvAudioChannelUnregisterType(const AudioChannelType& aType,
const bool& aElementHidden)
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
if (service) {
service->UnregisterType(aType, aElementHidden, mChildID);
}
return true;
}
bool
ContentParent::RecvAudioChannelChangedNotification()
{
nsRefPtr<AudioChannelService> service =
AudioChannelService::GetAudioChannelService();
if (service) {
service->SendAudioChannelChangedNotification(ChildID());
}
return true;
}
bool
ContentParent::RecvBroadcastVolume(const nsString& aVolumeName)
{
#ifdef MOZ_WIDGET_GONK
nsresult rv;
nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
if (vs) {
vs->BroadcastVolume(aVolumeName);
}
return true;
#else
NS_WARNING("ContentParent::RecvBroadcastVolume shouldn't be called when MOZ_WIDGET_GONK is not defined");
return false;
#endif
}
bool
ContentParent::RecvRecordingDeviceEvents(const nsString& aRecordingStatus)
{
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->NotifyObservers(nullptr, "recording-device-events", aRecordingStatus.get());
} else {
NS_WARNING("Could not get the Observer service for ContentParent::RecvRecordingDeviceEvents.");
}
return true;
}
NS_IMPL_ISUPPORTS3(ContentParent,
nsIObserver,
nsIThreadObserver,
nsIDOMGeoPositionCallback)
NS_IMETHODIMP
ContentParent::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* aData)
{
if (!strcmp(aTopic, "xpcom-shutdown") && mSubprocess) {
ShutDownProcess(/* closeWithError */ false);
NS_ASSERTION(!mSubprocess, "Close should have nulled mSubprocess");
}
if (!mIsAlive || !mSubprocess)
return NS_OK;
// listening for memory pressure event
if (!strcmp(aTopic, "memory-pressure") &&
!StringEndsWith(nsDependentString(aData),
NS_LITERAL_STRING("-no-forward"))) {
unused << SendFlushMemory(nsDependentString(aData));
}
// listening for remotePrefs...
else if (!strcmp(aTopic, "nsPref:changed")) {
// We know prefs are ASCII here.
NS_LossyConvertUTF16toASCII strData(aData);
PrefSetting pref(strData, null_t(), null_t());
Preferences::GetPreference(&pref);
if (!SendPreferenceUpdate(pref)) {
return NS_ERROR_NOT_AVAILABLE;
}
}
else if (!strcmp(aTopic, NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC)) {
NS_ConvertUTF16toUTF8 dataStr(aData);
const char *offline = dataStr.get();
if (!SendSetOffline(!strcmp(offline, "true") ? true : false))
return NS_ERROR_NOT_AVAILABLE;
}
// listening for alert notifications
else if (!strcmp(aTopic, "alertfinished") ||
!strcmp(aTopic, "alertclickcallback") ||
!strcmp(aTopic, "alertshow") ) {
if (!SendNotifyAlertsObserver(nsDependentCString(aTopic),
nsDependentString(aData)))
return NS_ERROR_NOT_AVAILABLE;
}
else if (!strcmp(aTopic, "child-memory-reporter-request")) {
unused << SendPMemoryReportRequestConstructor();
}
else if (!strcmp(aTopic, "child-gc-request")){
unused << SendGarbageCollect();
}
else if (!strcmp(aTopic, "child-cc-request")){
unused << SendCycleCollect();
}
else if (!strcmp(aTopic, "last-pb-context-exited")) {
unused << SendLastPrivateDocShellDestroyed();
}
else if (!strcmp(aTopic, "file-watcher-update")) {
nsCString creason;
CopyUTF16toUTF8(aData, creason);
DeviceStorageFile* file = static_cast<DeviceStorageFile*>(aSubject);
unused << SendFilePathUpdate(file->mStorageType, file->mStorageName, file->mPath, creason);
}
#ifdef MOZ_WIDGET_GONK
else if(!strcmp(aTopic, NS_VOLUME_STATE_CHANGED)) {
nsCOMPtr<nsIVolume> vol = do_QueryInterface(aSubject);
if (!vol) {
return NS_ERROR_NOT_AVAILABLE;
}
nsString volName;
nsString mountPoint;
int32_t state;
int32_t mountGeneration;
vol->GetName(volName);
vol->GetMountPoint(mountPoint);
vol->GetState(&state);
vol->GetMountGeneration(&mountGeneration);
unused << SendFileSystemUpdate(volName, mountPoint, state,
mountGeneration);
}
#endif
#ifdef ACCESSIBILITY
// Make sure accessibility is running in content process when accessibility
// gets initiated in chrome process.
else if (aData && (*aData == '1') &&
!strcmp(aTopic, "a11y-init-or-shutdown")) {
unused << SendActivateA11y();
}
#endif
return NS_OK;
}
PCompositorParent*
ContentParent::AllocPCompositorParent(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return CompositorParent::Create(aTransport, aOtherProcess);
}
PImageBridgeParent*
ContentParent::AllocPImageBridgeParent(mozilla::ipc::Transport* aTransport,
base::ProcessId aOtherProcess)
{
return ImageBridgeParent::Create(aTransport, aOtherProcess);
}
bool
ContentParent::RecvGetProcessAttributes(uint64_t* aId,
bool* aIsForApp, bool* aIsForBrowser)
{
*aId = mChildID;
*aIsForApp = IsForApp();
*aIsForBrowser = mIsForBrowser;
return true;
}
bool
ContentParent::RecvGetXPCOMProcessAttributes(bool* aIsOffline)
{
nsCOMPtr<nsIIOService> io(do_GetIOService());
NS_ASSERTION(io, "No IO service?");
DebugOnly<nsresult> rv = io->GetOffline(aIsOffline);
NS_ASSERTION(NS_SUCCEEDED(rv), "Failed getting offline?");
return true;
}
mozilla::jsipc::PJavaScriptParent *
ContentParent::AllocPJavaScriptParent()
{
mozilla::jsipc::JavaScriptParent *parent = new mozilla::jsipc::JavaScriptParent();
if (!parent->init()) {
delete parent;
return NULL;
}
return parent;
}
bool
ContentParent::DeallocPJavaScriptParent(PJavaScriptParent *parent)
{
static_cast<mozilla::jsipc::JavaScriptParent *>(parent)->destroyFromContent();
return true;
}
PBrowserParent*
ContentParent::AllocPBrowserParent(const IPCTabContext& aContext,
const uint32_t &aChromeFlags)
{
unused << aChromeFlags;
const IPCTabAppBrowserContext& appBrowser = aContext.appBrowserContext();
// We don't trust the IPCTabContext we receive from the child, so we'll bail
// if we receive an IPCTabContext that's not a PopupIPCTabContext.
// (PopupIPCTabContext lets the child process prove that it has access to
// the app it's trying to open.)
if (appBrowser.type() != IPCTabAppBrowserContext::TPopupIPCTabContext) {
NS_ERROR("Unexpected IPCTabContext type. Aborting AllocPBrowserParent.");
return nullptr;
}
const PopupIPCTabContext& popupContext = appBrowser.get_PopupIPCTabContext();
TabParent* opener = static_cast<TabParent*>(popupContext.openerParent());
if (!opener) {
NS_ERROR("Got null opener from child; aborting AllocPBrowserParent.");
return nullptr;
}
// Popup windows of isBrowser frames must be isBrowser if the parent
// isBrowser. Allocating a !isBrowser frame with same app ID would allow
// the content to access data it's not supposed to.
if (!popupContext.isBrowserElement() && opener->IsBrowserElement()) {
NS_ERROR("Child trying to escalate privileges! Aborting AllocPBrowserParent.");
return nullptr;
}
MaybeInvalidTabContext tc(aContext);
if (!tc.IsValid()) {
NS_ERROR(nsPrintfCString("Child passed us an invalid TabContext. (%s) "
"Aborting AllocPBrowserParent.",
tc.GetInvalidReason()).get());
return nullptr;
}
TabParent* parent = new TabParent(this, tc.GetTabContext());
// We release this ref in DeallocPBrowserParent()
NS_ADDREF(parent);
return parent;
}
bool
ContentParent::DeallocPBrowserParent(PBrowserParent* frame)
{
TabParent* parent = static_cast<TabParent*>(frame);
NS_RELEASE(parent);
return true;
}
PDeviceStorageRequestParent*
ContentParent::AllocPDeviceStorageRequestParent(const DeviceStorageParams& aParams)
{
nsRefPtr<DeviceStorageRequestParent> result = new DeviceStorageRequestParent(aParams);
if (!result->EnsureRequiredPermissions(this)) {
return nullptr;
}
result->Dispatch();
return result.forget().get();
}
bool
ContentParent::DeallocPDeviceStorageRequestParent(PDeviceStorageRequestParent* doomed)
{
DeviceStorageRequestParent *parent = static_cast<DeviceStorageRequestParent*>(doomed);
NS_RELEASE(parent);
return true;
}
PBlobParent*
ContentParent::AllocPBlobParent(const BlobConstructorParams& aParams)
{
return BlobParent::Create(this, aParams);
}
bool
ContentParent::DeallocPBlobParent(PBlobParent* aActor)
{
delete aActor;
return true;
}
BlobParent*
ContentParent::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) {
BlobParent* actor =
static_cast<BlobParent*>(
static_cast<PBlobParent*>(remoteBlob->GetPBlob()));
NS_ASSERTION(actor, "Null actor?!");
if (static_cast<ContentParent*>(actor->Manager()) == this) {
return actor;
}
}
ChildBlobConstructorParams 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 = MysteryBlobConstructorParams();
}
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<nsIDOMFile> file = do_QueryInterface(aBlob);
if (file) {
FileBlobConstructorParams fileParams;
rv = file->GetMozLastModifiedDate(&fileParams.modDate());
NS_ENSURE_SUCCESS(rv, nullptr);
rv = file->GetName(fileParams.name());
NS_ENSURE_SUCCESS(rv, nullptr);
fileParams.contentType() = contentType;
fileParams.length() = length;
params = fileParams;
} else {
NormalBlobConstructorParams blobParams;
blobParams.contentType() = contentType;
blobParams.length() = length;
params = blobParams;
}
}
BlobParent* actor = BlobParent::Create(this, aBlob);
NS_ENSURE_TRUE(actor, nullptr);
if (!SendPBlobConstructor(actor, params)) {
return nullptr;
}
return actor;
}
void
ContentParent::KillHard()
{
// On Windows, calling KillHard multiple times causes problems - the
// process handle becomes invalid on the first call, causing a second call
// to crash our process - more details in bug 890840.
if (mCalledKillHard) {
return;
}
mCalledKillHard = true;
mForceKillTask = nullptr;
// This ensures the process is eventually killed, but doesn't
// immediately KILLITWITHFIRE because we want to get a minidump if
// possible. After a timeout though, the process is forceably
// killed.
if (!KillProcess(OtherProcess(), 1, false)) {
NS_WARNING("failed to kill subprocess!");
}
XRE_GetIOMessageLoop()->PostTask(
FROM_HERE,
NewRunnableFunction(&ProcessWatcher::EnsureProcessTerminated,
OtherProcess(), /*force=*/true));
//We do clean-up here
MessageLoop::current()->PostDelayedTask(
FROM_HERE,
NewRunnableMethod(this, &ContentParent::ShutDownProcess,
/* closeWithError */ true),
3000);
}
bool
ContentParent::IsPreallocated()
{
return mAppManifestURL == MAGIC_PREALLOCATED_APP_MANIFEST_URL;
}
void
ContentParent::FriendlyName(nsAString& aName)
{
aName.Truncate();
if (IsPreallocated()) {
aName.AssignLiteral("(Preallocated)");
} else if (mIsForBrowser) {
aName.AssignLiteral("Browser");
} else if (!mAppName.IsEmpty()) {
aName = mAppName;
} else if (!mAppManifestURL.IsEmpty()) {
aName.AssignLiteral("Unknown app: ");
aName.Append(mAppManifestURL);
} else {
aName.AssignLiteral("???");
}
}
PCrashReporterParent*
ContentParent::AllocPCrashReporterParent(const NativeThreadId& tid,
const uint32_t& processType)
{
#ifdef MOZ_CRASHREPORTER
return new CrashReporterParent();
#else
return nullptr;
#endif
}
bool
ContentParent::RecvPCrashReporterConstructor(PCrashReporterParent* actor,
const NativeThreadId& tid,
const uint32_t& processType)
{
static_cast<CrashReporterParent*>(actor)->SetChildData(tid, processType);
return true;
}
bool
ContentParent::DeallocPCrashReporterParent(PCrashReporterParent* crashreporter)
{
delete crashreporter;
return true;
}
hal_sandbox::PHalParent*
ContentParent::AllocPHalParent()
{
return hal_sandbox::CreateHalParent();
}
bool
ContentParent::DeallocPHalParent(hal_sandbox::PHalParent* aHal)
{
delete aHal;
return true;
}
PIndexedDBParent*
ContentParent::AllocPIndexedDBParent()
{
return new IndexedDBParent(this);
}
bool
ContentParent::DeallocPIndexedDBParent(PIndexedDBParent* aActor)
{
delete aActor;
return true;
}
bool
ContentParent::RecvPIndexedDBConstructor(PIndexedDBParent* aActor)
{
nsRefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::GetOrCreate();
NS_ENSURE_TRUE(mgr, false);
if (!IndexedDatabaseManager::IsMainProcess()) {
NS_RUNTIMEABORT("Not supported yet!");
}
nsRefPtr<IDBFactory> factory;
nsresult rv = IDBFactory::Create(this, getter_AddRefs(factory));
NS_ENSURE_SUCCESS(rv, false);
NS_ASSERTION(factory, "This should never be null!");
IndexedDBParent* actor = static_cast<IndexedDBParent*>(aActor);
actor->mFactory = factory;
actor->mASCIIOrigin = factory->GetASCIIOrigin();
return true;
}
PMemoryReportRequestParent*
ContentParent::AllocPMemoryReportRequestParent()
{
MemoryReportRequestParent* parent = new MemoryReportRequestParent();
return parent;
}
bool
ContentParent::DeallocPMemoryReportRequestParent(PMemoryReportRequestParent* actor)
{
delete actor;
return true;
}
void
ContentParent::SetChildMemoryReporters(const InfallibleTArray<MemoryReport>& report)
{
nsCOMPtr<nsIMemoryReporterManager> mgr =
do_GetService("@mozilla.org/memory-reporter-manager;1");
for (int32_t i = 0; i < mMemoryReporters.Count(); i++)
mgr->UnregisterReporter(mMemoryReporters[i]);
for (uint32_t i = 0; i < report.Length(); i++) {
nsCString process = report[i].process();
nsCString path = report[i].path();
int32_t kind = report[i].kind();
int32_t units = report[i].units();
int64_t amount = report[i].amount();
nsCString desc = report[i].desc();
nsRefPtr<ChildMemoryReporter> r =
new ChildMemoryReporter(process.get(), path.get(), kind, units,
amount, desc.get());
mMemoryReporters.AppendObject(r);
mgr->RegisterReporter(r);
}
nsCOMPtr<nsIObserverService> obs =
do_GetService("@mozilla.org/observer-service;1");
if (obs)
obs->NotifyObservers(nullptr, "child-memory-reporter-update", nullptr);
}
void
ContentParent::ClearChildMemoryReporters()
{
nsCOMPtr<nsIMemoryReporterManager> mgr =
do_GetService("@mozilla.org/memory-reporter-manager;1");
for (int32_t i = 0; i < mMemoryReporters.Count(); i++)
mgr->UnregisterReporter(mMemoryReporters[i]);
}
PTestShellParent*
ContentParent::AllocPTestShellParent()
{
return new TestShellParent();
}
bool
ContentParent::DeallocPTestShellParent(PTestShellParent* shell)
{
delete shell;
return true;
}
PNeckoParent*
ContentParent::AllocPNeckoParent()
{
return new NeckoParent();
}
bool
ContentParent::DeallocPNeckoParent(PNeckoParent* necko)
{
delete necko;
return true;
}
PExternalHelperAppParent*
ContentParent::AllocPExternalHelperAppParent(const OptionalURIParams& uri,
const nsCString& aMimeContentType,
const nsCString& aContentDisposition,
const bool& aForceSave,
const int64_t& aContentLength,
const OptionalURIParams& aReferrer)
{
ExternalHelperAppParent *parent = new ExternalHelperAppParent(uri, aContentLength);
parent->AddRef();
parent->Init(this, aMimeContentType, aContentDisposition, aForceSave, aReferrer);
return parent;
}
bool
ContentParent::DeallocPExternalHelperAppParent(PExternalHelperAppParent* aService)
{
ExternalHelperAppParent *parent = static_cast<ExternalHelperAppParent *>(aService);
parent->Release();
return true;
}
PSmsParent*
ContentParent::AllocPSmsParent()
{
if (!AssertAppProcessPermission(this, "sms")) {
return nullptr;
}
SmsParent* parent = new SmsParent();
parent->AddRef();
return parent;
}
bool
ContentParent::DeallocPSmsParent(PSmsParent* aSms)
{
static_cast<SmsParent*>(aSms)->Release();
return true;
}
PStorageParent*
ContentParent::AllocPStorageParent()
{
return new DOMStorageDBParent();
}
bool
ContentParent::DeallocPStorageParent(PStorageParent* aActor)
{
DOMStorageDBParent* child = static_cast<DOMStorageDBParent*>(aActor);
child->ReleaseIPDLReference();
return true;
}
PBluetoothParent*
ContentParent::AllocPBluetoothParent()
{
#ifdef MOZ_B2G_BT
if (!AssertAppProcessPermission(this, "bluetooth")) {
return nullptr;
}
return new mozilla::dom::bluetooth::BluetoothParent();
#else
MOZ_CRASH("No support for bluetooth on this platform!");
#endif
}
bool
ContentParent::DeallocPBluetoothParent(PBluetoothParent* aActor)
{
#ifdef MOZ_B2G_BT
delete aActor;
return true;
#else
MOZ_CRASH("No support for bluetooth on this platform!");
#endif
}
bool
ContentParent::RecvPBluetoothConstructor(PBluetoothParent* aActor)
{
#ifdef MOZ_B2G_BT
nsRefPtr<BluetoothService> btService = BluetoothService::Get();
NS_ENSURE_TRUE(btService, false);
return static_cast<BluetoothParent*>(aActor)->InitWithService(btService);
#else
MOZ_CRASH("No support for bluetooth on this platform!");
#endif
}
PSpeechSynthesisParent*
ContentParent::AllocPSpeechSynthesisParent()
{
#ifdef MOZ_WEBSPEECH
return new mozilla::dom::SpeechSynthesisParent();
#else
return nullptr;
#endif
}
bool
ContentParent::DeallocPSpeechSynthesisParent(PSpeechSynthesisParent* aActor)
{
#ifdef MOZ_WEBSPEECH
delete aActor;
return true;
#else
return false;
#endif
}
bool
ContentParent::RecvPSpeechSynthesisConstructor(PSpeechSynthesisParent* aActor)
{
#ifdef MOZ_WEBSPEECH
return true;
#else
return false;
#endif
}
bool
ContentParent::RecvStartVisitedQuery(const URIParams& aURI)
{
nsCOMPtr<nsIURI> newURI = DeserializeURI(aURI);
if (!newURI) {
return false;
}
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->RegisterVisitedCallback(newURI, nullptr);
}
return true;
}
bool
ContentParent::RecvVisitURI(const URIParams& uri,
const OptionalURIParams& referrer,
const uint32_t& flags)
{
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
nsCOMPtr<nsIURI> ourReferrer = DeserializeURI(referrer);
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->VisitURI(ourURI, ourReferrer, flags);
}
return true;
}
bool
ContentParent::RecvSetURITitle(const URIParams& uri,
const nsString& title)
{
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
nsCOMPtr<IHistory> history = services::GetHistoryService();
if (history) {
history->SetURITitle(ourURI, title);
}
return true;
}
bool
ContentParent::RecvShowFilePicker(const int16_t& mode,
const int16_t& selectedType,
const bool& addToRecentDocs,
const nsString& title,
const nsString& defaultFile,
const nsString& defaultExtension,
const InfallibleTArray<nsString>& filters,
const InfallibleTArray<nsString>& filterNames,
InfallibleTArray<nsString>* files,
int16_t* retValue,
nsresult* result)
{
nsCOMPtr<nsIFilePicker> filePicker = do_CreateInstance("@mozilla.org/filepicker;1");
if (!filePicker) {
*result = NS_ERROR_NOT_AVAILABLE;
return true;
}
// as the parent given to the content process would be meaningless in this
// process, always use active window as the parent
nsCOMPtr<nsIWindowWatcher> ww = do_GetService(NS_WINDOWWATCHER_CONTRACTID);
nsCOMPtr<nsIDOMWindow> window;
ww->GetActiveWindow(getter_AddRefs(window));
// initialize the "real" picker with all data given
*result = filePicker->Init(window, title, mode);
if (NS_FAILED(*result))
return true;
filePicker->SetAddToRecentDocs(addToRecentDocs);
uint32_t count = filters.Length();
for (uint32_t i = 0; i < count; ++i) {
filePicker->AppendFilter(filterNames[i], filters[i]);
}
filePicker->SetDefaultString(defaultFile);
filePicker->SetDefaultExtension(defaultExtension);
filePicker->SetFilterIndex(selectedType);
// and finally open the dialog
*result = filePicker->Show(retValue);
if (NS_FAILED(*result))
return true;
if (mode == nsIFilePicker::modeOpenMultiple) {
nsCOMPtr<nsISimpleEnumerator> fileIter;
*result = filePicker->GetFiles(getter_AddRefs(fileIter));
nsCOMPtr<nsIFile> singleFile;
bool loop = true;
while (NS_SUCCEEDED(fileIter->HasMoreElements(&loop)) && loop) {
fileIter->GetNext(getter_AddRefs(singleFile));
if (singleFile) {
nsAutoString filePath;
singleFile->GetPath(filePath);
files->AppendElement(filePath);
}
}
return true;
}
nsCOMPtr<nsIFile> file;
filePicker->GetFile(getter_AddRefs(file));
// even with NS_OK file can be null if nothing was selected
if (file) {
nsAutoString filePath;
file->GetPath(filePath);
files->AppendElement(filePath);
}
return true;
}
bool
ContentParent::RecvGetRandomValues(const uint32_t& length,
InfallibleTArray<uint8_t>* randomValues)
{
uint8_t* buf = Crypto::GetRandomValues(length);
randomValues->SetCapacity(length);
randomValues->SetLength(length);
memcpy(randomValues->Elements(), buf, length);
NS_Free(buf);
return true;
}
bool
ContentParent::RecvLoadURIExternal(const URIParams& uri)
{
nsCOMPtr<nsIExternalProtocolService> extProtService(do_GetService(NS_EXTERNALPROTOCOLSERVICE_CONTRACTID));
if (!extProtService) {
return true;
}
nsCOMPtr<nsIURI> ourURI = DeserializeURI(uri);
if (!ourURI) {
return false;
}
extProtService->LoadURI(ourURI, nullptr);
return true;
}
/* void onDispatchedEvent (in nsIThreadInternal thread); */
NS_IMETHODIMP
ContentParent::OnDispatchedEvent(nsIThreadInternal *thread)
{
NS_NOTREACHED("OnDispatchedEvent unimplemented");
return NS_ERROR_NOT_IMPLEMENTED;
}
/* void onProcessNextEvent (in nsIThreadInternal thread, in boolean mayWait, in unsigned long recursionDepth); */
NS_IMETHODIMP
ContentParent::OnProcessNextEvent(nsIThreadInternal *thread,
bool mayWait,
uint32_t recursionDepth)
{
return NS_OK;
}
/* void afterProcessNextEvent (in nsIThreadInternal thread, in unsigned long recursionDepth); */
NS_IMETHODIMP
ContentParent::AfterProcessNextEvent(nsIThreadInternal *thread,
uint32_t recursionDepth)
{
return NS_OK;
}
bool
ContentParent::RecvShowAlertNotification(const nsString& aImageUrl, const nsString& aTitle,
const nsString& aText, const bool& aTextClickable,
const nsString& aCookie, const nsString& aName,
const nsString& aBidi, const nsString& aLang)
{
if (!AssertAppProcessPermission(this, "desktop-notification")) {
return false;
}
nsCOMPtr<nsIAlertsService> sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID));
if (sysAlerts) {
sysAlerts->ShowAlertNotification(aImageUrl, aTitle, aText, aTextClickable,
aCookie, this, aName, aBidi, aLang);
}
return true;
}
bool
ContentParent::RecvCloseAlert(const nsString& aName)
{
if (!AssertAppProcessPermission(this, "desktop-notification")) {
return false;
}
nsCOMPtr<nsIAlertsService> sysAlerts(do_GetService(NS_ALERTSERVICE_CONTRACTID));
if (sysAlerts) {
sysAlerts->CloseAlert(aName);
}
return true;
}
bool
ContentParent::RecvSyncMessage(const nsString& aMsg,
const ClonedMessageData& aData,
const InfallibleTArray<CpowEntry>& aCpows,
InfallibleTArray<nsString>* aRetvals)
{
nsRefPtr<nsFrameMessageManager> ppm = mMessageManager;
if (ppm) {
StructuredCloneData cloneData = ipc::UnpackClonedMessageDataForParent(aData);
CpowIdHolder cpows(GetCPOWManager(), aCpows);
ppm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(ppm.get()),
aMsg, true, &cloneData, &cpows, aRetvals);
}
return true;
}
bool
ContentParent::RecvAsyncMessage(const nsString& aMsg,
const ClonedMessageData& aData,
const InfallibleTArray<CpowEntry>& aCpows)
{
nsRefPtr<nsFrameMessageManager> ppm = mMessageManager;
if (ppm) {
StructuredCloneData cloneData = ipc::UnpackClonedMessageDataForParent(aData);
CpowIdHolder cpows(GetCPOWManager(), aCpows);
ppm->ReceiveMessage(static_cast<nsIContentFrameMessageManager*>(ppm.get()),
aMsg, false, &cloneData, &cpows, nullptr);
}
return true;
}
bool
ContentParent::RecvFilePathUpdateNotify(const nsString& aType,
const nsString& aStorageName,
const nsString& aFilePath,
const nsCString& aReason)
{
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(aType,
aStorageName,
aFilePath);
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (!obs) {
return false;
}
obs->NotifyObservers(dsf, "file-watcher-update",
NS_ConvertASCIItoUTF16(aReason).get());
return true;
}
static int32_t
AddGeolocationListener(nsIDOMGeoPositionCallback* watcher, bool highAccuracy)
{
nsCOMPtr<nsIDOMGeoGeolocation> geo = do_GetService("@mozilla.org/geolocation;1");
if (!geo) {
return -1;
}
GeoPositionOptions* options = new GeoPositionOptions();
options->enableHighAccuracy = highAccuracy;
int32_t retval = 1;
geo->WatchPosition(watcher, nullptr, options, &retval);
return retval;
}
bool
ContentParent::RecvAddGeolocationListener(const IPC::Principal& aPrincipal,
const bool& aHighAccuracy)
{
#ifdef MOZ_PERMISSIONS
if (Preferences::GetBool("geo.testing.ignore_ipc_principal", false) == false) {
nsIPrincipal* principal = aPrincipal;
if (principal == nullptr) {
KillHard();
return true;
}
uint32_t principalAppId;
nsresult rv = principal->GetAppId(&principalAppId);
if (NS_FAILED(rv)) {
return true;
}
bool found = false;
const InfallibleTArray<PBrowserParent*>& browsers = ManagedPBrowserParent();
for (uint32_t i = 0; i < browsers.Length(); ++i) {
TabParent* tab = static_cast<TabParent*>(browsers[i]);
nsCOMPtr<mozIApplication> app = tab->GetOwnOrContainingApp();
uint32_t appId;
app->GetLocalId(&appId);
if (appId == principalAppId) {
found = true;
break;
}
}
if (!found) {
return true;
}
// We need to ensure that this permission has been set.
// If it hasn't, just noop
nsCOMPtr<nsIPermissionManager> pm = do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
if (!pm) {
return false;
}
uint32_t permission = nsIPermissionManager::UNKNOWN_ACTION;
rv = pm->TestPermissionFromPrincipal(principal, "geolocation", &permission);
if (NS_FAILED(rv) || permission != nsIPermissionManager::ALLOW_ACTION) {
KillHard();
return true;
}
}
#endif
// To ensure no geolocation updates are skipped, we always force the
// creation of a new listener.
RecvRemoveGeolocationListener();
mGeolocationWatchID = AddGeolocationListener(this, aHighAccuracy);
return true;
}
bool
ContentParent::RecvRemoveGeolocationListener()
{
if (mGeolocationWatchID != -1) {
nsCOMPtr<nsIDOMGeoGeolocation> geo = do_GetService("@mozilla.org/geolocation;1");
if (!geo) {
return true;
}
geo->ClearWatch(mGeolocationWatchID);
mGeolocationWatchID = -1;
}
return true;
}
bool
ContentParent::RecvSetGeolocationHigherAccuracy(const bool& aEnable)
{
// This should never be called without a listener already present,
// so this check allows us to forgo securing privileges.
if (mGeolocationWatchID != -1) {
RecvRemoveGeolocationListener();
mGeolocationWatchID = AddGeolocationListener(this, aEnable);
}
return true;
}
NS_IMETHODIMP
ContentParent::HandleEvent(nsIDOMGeoPosition* postion)
{
unused << SendGeolocationUpdate(GeoPosition(postion));
return NS_OK;
}
nsConsoleService *
ContentParent::GetConsoleService()
{
if (mConsoleService) {
return mConsoleService.get();
}
// Get the ConsoleService by CID rather than ContractID, so that we
// can cast the returned pointer to an nsConsoleService (rather than
// just an nsIConsoleService). This allows us to call the non-idl function
// nsConsoleService::LogMessageWithMode.
NS_DEFINE_CID(consoleServiceCID, NS_CONSOLESERVICE_CID);
nsCOMPtr<nsConsoleService> consoleService(do_GetService(consoleServiceCID));
mConsoleService = consoleService;
return mConsoleService.get();
}
bool
ContentParent::RecvConsoleMessage(const nsString& aMessage)
{
nsRefPtr<nsConsoleService> consoleService = GetConsoleService();
if (!consoleService) {
return true;
}
nsRefPtr<nsConsoleMessage> msg(new nsConsoleMessage(aMessage.get()));
consoleService->LogMessageWithMode(msg, nsConsoleService::SuppressLog);
return true;
}
bool
ContentParent::RecvScriptError(const nsString& aMessage,
const nsString& aSourceName,
const nsString& aSourceLine,
const uint32_t& aLineNumber,
const uint32_t& aColNumber,
const uint32_t& aFlags,
const nsCString& aCategory)
{
nsRefPtr<nsConsoleService> consoleService = GetConsoleService();
if (!consoleService) {
return true;
}
nsCOMPtr<nsIScriptError> msg(do_CreateInstance(NS_SCRIPTERROR_CONTRACTID));
nsresult rv = msg->Init(aMessage, aSourceName, aSourceLine,
aLineNumber, aColNumber, aFlags, aCategory.get());
if (NS_FAILED(rv))
return true;
consoleService->LogMessageWithMode(msg, nsConsoleService::SuppressLog);
return true;
}
bool
ContentParent::RecvPrivateDocShellsExist(const bool& aExist)
{
if (!sPrivateContent)
sPrivateContent = new nsTArray<ContentParent*>();
if (aExist) {
sPrivateContent->AppendElement(this);
} else {
sPrivateContent->RemoveElement(this);
if (!sPrivateContent->Length()) {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
obs->NotifyObservers(nullptr, "last-pb-context-exited", nullptr);
delete sPrivateContent;
sPrivateContent = NULL;
}
}
return true;
}
bool
ContentParent::DoSendAsyncMessage(JSContext* aCx,
const nsAString& aMessage,
const mozilla::dom::StructuredCloneData& aData,
JS::Handle<JSObject *> aCpows)
{
ClonedMessageData data;
if (!BuildClonedMessageDataForParent(this, aData, data)) {
return false;
}
InfallibleTArray<CpowEntry> cpows;
if (!GetCPOWManager()->Wrap(aCx, aCpows, &cpows)) {
return false;
}
return SendAsyncMessage(nsString(aMessage), data, cpows);
}
bool
ContentParent::CheckPermission(const nsAString& aPermission)
{
return AssertAppProcessPermission(this, NS_ConvertUTF16toUTF8(aPermission).get());
}
bool
ContentParent::CheckManifestURL(const nsAString& aManifestURL)
{
return AssertAppProcessManifestURL(this, NS_ConvertUTF16toUTF8(aManifestURL).get());
}
bool
ContentParent::CheckAppHasPermission(const nsAString& aPermission)
{
return AssertAppHasPermission(this, NS_ConvertUTF16toUTF8(aPermission).get());
}
bool
ContentParent::CheckAppHasStatus(unsigned short aStatus)
{
return AssertAppHasStatus(this, aStatus);
}
bool
ContentParent::RecvSystemMessageHandled()
{
SystemMessageHandledListener::OnSystemMessageHandled();
return true;
}
bool
ContentParent::RecvCreateFakeVolume(const nsString& fsName, const nsString& mountPoint)
{
#ifdef MOZ_WIDGET_GONK
nsresult rv;
nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
if (vs) {
vs->CreateFakeVolume(fsName, mountPoint);
}
return true;
#else
NS_WARNING("ContentParent::RecvCreateFakeVolume shouldn't be called when MOZ_WIDGET_GONK is not defined");
return false;
#endif
}
bool
ContentParent::RecvSetFakeVolumeState(const nsString& fsName, const int32_t& fsState)
{
#ifdef MOZ_WIDGET_GONK
nsresult rv;
nsCOMPtr<nsIVolumeService> vs = do_GetService(NS_VOLUMESERVICE_CONTRACTID, &rv);
if (vs) {
vs->SetFakeVolumeState(fsName, fsState);
}
return true;
#else
NS_WARNING("ContentParent::RecvSetFakeVolumeState shouldn't be called when MOZ_WIDGET_GONK is not defined");
return false;
#endif
}
bool
ContentParent::RecvKeywordToURI(const nsCString& aKeyword, OptionalInputStreamParams* aPostData,
OptionalURIParams* aURI)
{
nsCOMPtr<nsIURIFixup> fixup = do_GetService(NS_URIFIXUP_CONTRACTID);
if (!fixup) {
return true;
}
nsCOMPtr<nsIInputStream> postData;
nsCOMPtr<nsIURI> uri;
if (NS_FAILED(fixup->KeywordToURI(aKeyword, getter_AddRefs(postData),
getter_AddRefs(uri)))) {
return true;
}
SerializeInputStream(postData, *aPostData);
SerializeURI(uri, *aURI);
return true;
}
} // namespace dom
} // namespace mozilla
Reference in New Issue View Git Blame Copy Permalink