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b97c5dfc24
gecko/dom/ipc/ContentParent.cpp
Dave Hylands b97c5dfc24 Bug 878310 - Improve DeviceStorage volume status reporting. r=qDot 
This changeset causes tranistory states when changing from mounted to shared,
and back to mounted to be reported as shared instead of unavailable.

We also don't send the same status twice in a row.
2013-08-22 16:12:25 -07:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set sw=4 ts=8 et tw=80 : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/DebugOnly.h"
#include "base/basictypes.h"
#include "ContentParent.h"
#if defined(ANDROID) || defined(LINUX)
# include <sys/time.h>
# include <sys/resource.h>
#endif
#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;
bool isMediaPresent;
bool isSharing;
vol->GetName(volName);
vol->GetMountPoint(mountPoint);
vol->GetState(&state);
vol->GetMountGeneration(&mountGeneration);
vol->GetIsMediaPresent(&isMediaPresent);
vol->GetIsSharing(&isSharing);
unused << SendFileSystemUpdate(volName, mountPoint, state,
mountGeneration, isMediaPresent,
isSharing);
}
#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
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