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gecko-dev/dom/media/gmp/GMPServiceParent.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "GMPServiceParent.h"
#include "GMPService.h"
#include "prio.h"
#include "base/task.h"
#include "mozilla/AbstractThread.h"
#include "mozilla/Logging.h"
#include "mozilla/StaticPrefs.h"
#include "mozilla/dom/ContentParent.h"
#include "GMPParent.h"
#include "GMPVideoDecoderParent.h"
#include "nsAutoPtr.h"
#include "nsIObserverService.h"
#include "GeckoChildProcessHost.h"
#include "mozilla/Preferences.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/SyncRunnable.h"
#include "nsXPCOMPrivate.h"
#include "mozilla/Services.h"
#include "nsNativeCharsetUtils.h"
#include "nsIConsoleService.h"
#include "mozilla/Unused.h"
#include "nsComponentManagerUtils.h"
#include "runnable_utils.h"
#include "VideoUtils.h"
#if defined(XP_LINUX) && defined(MOZ_GMP_SANDBOX)
#include "mozilla/SandboxInfo.h"
#endif
#include "nsAppDirectoryServiceDefs.h"
#include "nsDirectoryServiceUtils.h"
#include "nsDirectoryServiceDefs.h"
#include "nsHashKeys.h"
#include "nsIFile.h"
#include "nsISimpleEnumerator.h"
#include "nsIXULRuntime.h"
#include "GMPDecoderModule.h"
#include <limits>
#include "mozilla/SystemGroup.h"
using mozilla::ipc::Transport;
namespace mozilla {
#ifdef LOG
#undef LOG
#endif
#define LOGD(msg) MOZ_LOG(GetGMPLog(), mozilla::LogLevel::Debug, msg)
#define LOG(level, msg) MOZ_LOG(GetGMPLog(), (level), msg)
#ifdef __CLASS__
#undef __CLASS__
#endif
#define __CLASS__ "GMPService"
#define NS_DispatchToMainThread(...) CompileError_UseAbstractMainThreadInstead
namespace gmp {
static const uint32_t NodeIdSaltLength = 32;
already_AddRefed<GeckoMediaPluginServiceParent>
GeckoMediaPluginServiceParent::GetSingleton() {
MOZ_ASSERT(XRE_IsParentProcess());
RefPtr<GeckoMediaPluginService> service(
GeckoMediaPluginServiceParent::GetGeckoMediaPluginService());
#ifdef DEBUG
if (service) {
nsCOMPtr<mozIGeckoMediaPluginChromeService> chromeService;
CallQueryInterface(service.get(), getter_AddRefs(chromeService));
MOZ_ASSERT(chromeService);
}
#endif
return service.forget().downcast<GeckoMediaPluginServiceParent>();
}
NS_IMPL_ISUPPORTS_INHERITED(GeckoMediaPluginServiceParent,
GeckoMediaPluginService,
mozIGeckoMediaPluginChromeService,
nsIAsyncShutdownBlocker)
GeckoMediaPluginServiceParent::GeckoMediaPluginServiceParent()
: mShuttingDown(false),
mScannedPluginOnDisk(false),
mWaitingForPluginsSyncShutdown(false),
mInitPromiseMonitor("GeckoMediaPluginServiceParent::mInitPromiseMonitor"),
mLoadPluginsFromDiskComplete(false),
mMainThread(SystemGroup::AbstractMainThreadFor(TaskCategory::Other)) {
MOZ_ASSERT(NS_IsMainThread());
mInitPromise.SetMonitor(&mInitPromiseMonitor);
}
GeckoMediaPluginServiceParent::~GeckoMediaPluginServiceParent() {
MOZ_ASSERT(mPlugins.IsEmpty());
}
nsresult GeckoMediaPluginServiceParent::Init() {
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIObserverService> obsService =
mozilla::services::GetObserverService();
MOZ_ASSERT(obsService);
MOZ_ALWAYS_SUCCEEDS(
obsService->AddObserver(this, "profile-change-teardown", false));
MOZ_ALWAYS_SUCCEEDS(
obsService->AddObserver(this, "last-pb-context-exited", false));
MOZ_ALWAYS_SUCCEEDS(
obsService->AddObserver(this, "browser:purge-session-history", false));
#ifdef DEBUG
MOZ_ALWAYS_SUCCEEDS(
obsService->AddObserver(this, "mediakeys-request", false));
#endif
nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs) {
prefs->AddObserver("media.gmp.plugin.crash", this, false);
}
nsresult rv = InitStorage();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Kick off scanning for plugins
nsCOMPtr<nsIThread> thread;
rv = GetThread(getter_AddRefs(thread));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Detect if GMP storage has an incompatible version, and if so nuke it.
int32_t version =
Preferences::GetInt("media.gmp.storage.version.observed", 0);
int32_t expected =
Preferences::GetInt("media.gmp.storage.version.expected", 0);
if (version != expected) {
Preferences::SetInt("media.gmp.storage.version.observed", expected);
return GMPDispatch(
NewRunnableMethod("gmp::GeckoMediaPluginServiceParent::ClearStorage",
this, &GeckoMediaPluginServiceParent::ClearStorage));
}
return NS_OK;
}
already_AddRefed<nsIFile> CloneAndAppend(nsIFile* aFile,
const nsAString& aDir) {
nsCOMPtr<nsIFile> f;
nsresult rv = aFile->Clone(getter_AddRefs(f));
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
rv = f->Append(aDir);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return f.forget();
}
static nsresult GMPPlatformString(nsAString& aOutPlatform) {
// Append the OS and arch so that we don't reuse the storage if the profile is
// copied or used under a different bit-ness, or copied to another platform.
nsCOMPtr<nsIXULRuntime> runtime = do_GetService("@mozilla.org/xre/runtime;1");
if (!runtime) {
return NS_ERROR_FAILURE;
}
nsAutoCString OS;
nsresult rv = runtime->GetOS(OS);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoCString arch;
rv = runtime->GetXPCOMABI(arch);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCString platform;
platform.Append(OS);
platform.AppendLiteral("_");
platform.Append(arch);
aOutPlatform = NS_ConvertUTF8toUTF16(platform);
return NS_OK;
}
nsresult GeckoMediaPluginServiceParent::InitStorage() {
MOZ_ASSERT(NS_IsMainThread());
// GMP storage should be used in the chrome process only.
if (!XRE_IsParentProcess()) {
return NS_OK;
}
// Directory service is main thread only, so cache the profile dir here
// so that we can use it off main thread.
nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
getter_AddRefs(mStorageBaseDir));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mStorageBaseDir->AppendNative(NS_LITERAL_CSTRING("gmp"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mStorageBaseDir->Create(nsIFile::DIRECTORY_TYPE, 0700);
if (NS_WARN_IF(NS_FAILED(rv) && rv != NS_ERROR_FILE_ALREADY_EXISTS)) {
return rv;
}
nsCOMPtr<nsIFile> gmpDirWithoutPlatform;
rv = mStorageBaseDir->Clone(getter_AddRefs(gmpDirWithoutPlatform));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoString platform;
rv = GMPPlatformString(platform);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mStorageBaseDir->Append(platform);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = mStorageBaseDir->Create(nsIFile::DIRECTORY_TYPE, 0700);
if (NS_WARN_IF(NS_FAILED(rv) && rv != NS_ERROR_FILE_ALREADY_EXISTS)) {
return rv;
}
return GeckoMediaPluginService::Init();
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aSomeData) {
LOGD(("%s::%s topic='%s' data='%s'", __CLASS__, __FUNCTION__, aTopic,
NS_ConvertUTF16toUTF8(aSomeData).get()));
if (!strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID)) {
nsCOMPtr<nsIPrefBranch> branch(do_QueryInterface(aSubject));
if (branch) {
bool crashNow = false;
if (NS_LITERAL_STRING("media.gmp.plugin.crash").Equals(aSomeData)) {
branch->GetBoolPref("media.gmp.plugin.crash", &crashNow);
}
if (crashNow) {
nsCOMPtr<nsIThread> gmpThread;
{
MutexAutoLock lock(mMutex);
gmpThread = mGMPThread;
}
if (gmpThread) {
// Note: the GeckoMediaPluginServiceParent singleton is kept alive by
// a static refptr that is only cleared in the final stage of shutdown
// after everything else is shutdown, so this RefPtr<> is not strictly
// necessary so long as that is true, but it's safer.
gmpThread->Dispatch(
WrapRunnable(RefPtr<GeckoMediaPluginServiceParent>(this),
&GeckoMediaPluginServiceParent::CrashPlugins),
NS_DISPATCH_NORMAL);
}
}
}
} else if (!strcmp("profile-change-teardown", aTopic)) {
mWaitingForPluginsSyncShutdown = true;
nsCOMPtr<nsIThread> gmpThread;
{
MutexAutoLock lock(mMutex);
MOZ_ASSERT(!mShuttingDown);
mShuttingDown = true;
gmpThread = mGMPThread;
}
if (gmpThread) {
LOGD(("%s::%s Starting to unload plugins, waiting for sync shutdown...",
__CLASS__, __FUNCTION__));
gmpThread->Dispatch(
NewRunnableMethod("gmp::GeckoMediaPluginServiceParent::UnloadPlugins",
this,
&GeckoMediaPluginServiceParent::UnloadPlugins),
NS_DISPATCH_NORMAL);
// Wait for UnloadPlugins() to do sync shutdown...
SpinEventLoopUntil([&]() { return !mWaitingForPluginsSyncShutdown; });
} else {
// GMP thread has already shutdown.
MOZ_ASSERT(mPlugins.IsEmpty());
mWaitingForPluginsSyncShutdown = false;
}
} else if (!strcmp(NS_XPCOM_SHUTDOWN_THREADS_OBSERVER_ID, aTopic)) {
MOZ_ASSERT(mShuttingDown);
ShutdownGMPThread();
} else if (!strcmp(NS_XPCOM_WILL_SHUTDOWN_OBSERVER_ID, aTopic)) {
mXPCOMWillShutdown = true;
} else if (!strcmp("last-pb-context-exited", aTopic)) {
// When Private Browsing mode exits, all we need to do is clear
// mTempNodeIds. This drops all the node ids we've cached in memory
// for PB origin-pairs. If we try to open an origin-pair for non-PB
// mode, we'll get the NodeId salt stored on-disk, and if we try to
// open a PB mode origin-pair, we'll re-generate new salt.
mTempNodeIds.Clear();
} else if (!strcmp("browser:purge-session-history", aTopic)) {
// Clear everything!
if (!aSomeData || nsDependentString(aSomeData).IsEmpty()) {
return GMPDispatch(NewRunnableMethod(
"gmp::GeckoMediaPluginServiceParent::ClearStorage", this,
&GeckoMediaPluginServiceParent::ClearStorage));
}
// Clear nodeIds/records modified after |t|.
nsresult rv;
PRTime t = nsDependentString(aSomeData).ToInteger64(&rv, 10);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return GMPDispatch(NewRunnableMethod<PRTime>(
"gmp::GeckoMediaPluginServiceParent::ClearRecentHistoryOnGMPThread",
this, &GeckoMediaPluginServiceParent::ClearRecentHistoryOnGMPThread,
t));
}
return NS_OK;
}
RefPtr<GenericPromise> GeckoMediaPluginServiceParent::EnsureInitialized() {
MonitorAutoLock lock(mInitPromiseMonitor);
if (mLoadPluginsFromDiskComplete) {
return GenericPromise::CreateAndResolve(true, __func__);
}
// We should have an init promise in flight.
MOZ_ASSERT(!mInitPromise.IsEmpty());
return mInitPromise.Ensure(__func__);
}
RefPtr<GetGMPContentParentPromise>
GeckoMediaPluginServiceParent::GetContentParent(
GMPCrashHelper* aHelper, const nsACString& aNodeIdString,
const nsCString& aAPI, const nsTArray<nsCString>& aTags) {
RefPtr<AbstractThread> thread(GetAbstractGMPThread());
if (!thread) {
return GetGMPContentParentPromise::CreateAndReject(NS_ERROR_FAILURE,
__func__);
}
auto holder = MakeUnique<MozPromiseHolder<GetGMPContentParentPromise>>();
RefPtr<GetGMPContentParentPromise> promise = holder->Ensure(__func__);
EnsureInitialized()->Then(
thread, __func__,
[self = RefPtr<GeckoMediaPluginServiceParent>(this),
nodeIdString = nsCString(aNodeIdString), api = nsCString(aAPI),
tags = nsTArray<nsCString>(aTags),
helper = RefPtr<GMPCrashHelper>(aHelper), holder = std::move(holder)](
const GenericPromise::ResolveOrRejectValue& aValue) mutable -> void {
if (aValue.IsReject()) {
NS_WARNING("GMPService::EnsureInitialized failed.");
holder->Reject(NS_ERROR_FAILURE, __func__);
return;
}
RefPtr<GMPParent> gmp =
self->SelectPluginForAPI(nodeIdString, api, tags);
LOGD(("%s: %p returning %p for api %s", __FUNCTION__, self.get(),
gmp.get(), api.get()));
if (!gmp) {
NS_WARNING(
"GeckoMediaPluginServiceParent::GetContentParentFrom failed");
holder->Reject(NS_ERROR_FAILURE, __func__);
return;
}
self->ConnectCrashHelper(gmp->GetPluginId(), helper);
gmp->GetGMPContentParent(std::move(holder));
});
return promise;
}
RefPtr<GetGMPContentParentPromise>
GeckoMediaPluginServiceParent::GetContentParent(
GMPCrashHelper* aHelper, const NodeId& aNodeId, const nsCString& aAPI,
const nsTArray<nsCString>& aTags) {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
nsCString nodeIdString;
nsresult rv = GetNodeId(aNodeId.mOrigin, aNodeId.mTopLevelOrigin,
aNodeId.mGMPName, nodeIdString);
if (NS_WARN_IF(NS_FAILED(rv))) {
return GetGMPContentParentPromise::CreateAndReject(NS_ERROR_FAILURE,
__func__);
}
return GetContentParent(aHelper, nodeIdString, aAPI, aTags);
}
void GeckoMediaPluginServiceParent::InitializePlugins(
AbstractThread* aAbstractGMPThread) {
MOZ_ASSERT(aAbstractGMPThread);
MonitorAutoLock lock(mInitPromiseMonitor);
if (mLoadPluginsFromDiskComplete) {
return;
}
RefPtr<GeckoMediaPluginServiceParent> self(this);
RefPtr<GenericPromise> p = mInitPromise.Ensure(__func__);
InvokeAsync(aAbstractGMPThread, this, __func__,
&GeckoMediaPluginServiceParent::LoadFromEnvironment)
->Then(aAbstractGMPThread, __func__,
[self]() -> void {
MonitorAutoLock lock(self->mInitPromiseMonitor);
self->mLoadPluginsFromDiskComplete = true;
self->mInitPromise.Resolve(true, __func__);
},
[self]() -> void {
MonitorAutoLock lock(self->mInitPromiseMonitor);
self->mLoadPluginsFromDiskComplete = true;
self->mInitPromise.Reject(NS_ERROR_FAILURE, __func__);
});
}
void GeckoMediaPluginServiceParent::NotifySyncShutdownComplete() {
MOZ_ASSERT(NS_IsMainThread());
mWaitingForPluginsSyncShutdown = false;
}
bool GeckoMediaPluginServiceParent::IsShuttingDown() {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
return mShuttingDownOnGMPThread;
}
void GeckoMediaPluginServiceParent::UnloadPlugins() {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
MOZ_ASSERT(!mShuttingDownOnGMPThread);
mShuttingDownOnGMPThread = true;
nsTArray<RefPtr<GMPParent>> plugins;
{
MutexAutoLock lock(mMutex);
// Move all plugins references to a local array. This way mMutex won't be
// locked when calling CloseActive (to avoid inter-locking).
Swap(plugins, mPlugins);
for (GMPServiceParent* parent : mServiceParents) {
Unused << parent->SendBeginShutdown();
}
}
LOGD(("%s::%s plugins:%zu", __CLASS__, __FUNCTION__, plugins.Length()));
#ifdef DEBUG
for (const auto& plugin : plugins) {
LOGD(("%s::%s plugin: '%s'", __CLASS__, __FUNCTION__,
plugin->GetDisplayName().get()));
}
#endif
// Note: CloseActive may be async; it could actually finish
// shutting down when all the plugins have unloaded.
for (const auto& plugin : plugins) {
plugin->CloseActive(true);
}
nsCOMPtr<nsIRunnable> task = NewRunnableMethod(
"GeckoMediaPluginServiceParent::NotifySyncShutdownComplete", this,
&GeckoMediaPluginServiceParent::NotifySyncShutdownComplete);
mMainThread->Dispatch(task.forget());
}
void GeckoMediaPluginServiceParent::CrashPlugins() {
LOGD(("%s::%s", __CLASS__, __FUNCTION__));
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
MutexAutoLock lock(mMutex);
for (size_t i = 0; i < mPlugins.Length(); i++) {
mPlugins[i]->Crash();
}
}
RefPtr<GenericPromise::AllPromiseType>
GeckoMediaPluginServiceParent::LoadFromEnvironment() {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
RefPtr<AbstractThread> thread(GetAbstractGMPThread());
if (!thread) {
return GenericPromise::AllPromiseType::CreateAndReject(NS_ERROR_FAILURE,
__func__);
}
const char* env = PR_GetEnv("MOZ_GMP_PATH");
if (!env || !*env) {
return GenericPromise::AllPromiseType::CreateAndResolve(true, __func__);
}
nsString allpaths;
if (NS_WARN_IF(NS_FAILED(
NS_CopyNativeToUnicode(nsDependentCString(env), allpaths)))) {
return GenericPromise::AllPromiseType::CreateAndReject(NS_ERROR_FAILURE,
__func__);
}
nsTArray<RefPtr<GenericPromise>> promises;
uint32_t pos = 0;
while (pos < allpaths.Length()) {
// Loop over multiple path entries separated by colons (*nix) or
// semicolons (Windows)
int32_t next = allpaths.FindChar(XPCOM_ENV_PATH_SEPARATOR[0], pos);
if (next == -1) {
promises.AppendElement(
AddOnGMPThread(nsString(Substring(allpaths, pos))));
break;
} else {
promises.AppendElement(
AddOnGMPThread(nsString(Substring(allpaths, pos, next - pos))));
pos = next + 1;
}
}
mScannedPluginOnDisk = true;
return GenericPromise::All(thread, promises);
}
class NotifyObserversTask final : public mozilla::Runnable {
public:
explicit NotifyObserversTask(const char* aTopic,
nsString aData = EmptyString())
: Runnable(aTopic), mTopic(aTopic), mData(aData) {}
NS_IMETHOD Run() override {
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIObserverService> obsService =
mozilla::services::GetObserverService();
MOZ_ASSERT(obsService);
if (obsService) {
obsService->NotifyObservers(nullptr, mTopic, mData.get());
}
return NS_OK;
}
private:
~NotifyObserversTask() {}
const char* mTopic;
const nsString mData;
};
NS_IMETHODIMP
GeckoMediaPluginServiceParent::PathRunnable::Run() {
mService->RemoveOnGMPThread(mPath, mOperation == REMOVE_AND_DELETE_FROM_DISK,
mDefer);
mService->UpdateContentProcessGMPCapabilities();
return NS_OK;
}
void GeckoMediaPluginServiceParent::UpdateContentProcessGMPCapabilities() {
if (!NS_IsMainThread()) {
nsCOMPtr<nsIRunnable> task = NewRunnableMethod(
"GeckoMediaPluginServiceParent::UpdateContentProcessGMPCapabilities",
this,
&GeckoMediaPluginServiceParent::UpdateContentProcessGMPCapabilities);
mMainThread->Dispatch(task.forget());
return;
}
typedef mozilla::dom::GMPCapabilityData GMPCapabilityData;
typedef mozilla::dom::GMPAPITags GMPAPITags;
typedef mozilla::dom::ContentParent ContentParent;
nsTArray<GMPCapabilityData> caps;
{
MutexAutoLock lock(mMutex);
for (const RefPtr<GMPParent>& gmp : mPlugins) {
// We have multiple instances of a GMPParent for a given GMP in the
// list, one per origin. So filter the list so that we don't include
// the same GMP's capabilities twice.
NS_ConvertUTF16toUTF8 name(gmp->GetPluginBaseName());
bool found = false;
for (const GMPCapabilityData& cap : caps) {
if (cap.name().Equals(name)) {
found = true;
break;
}
}
if (found) {
continue;
}
GMPCapabilityData x;
x.name() = name;
x.version() = gmp->GetVersion();
for (const GMPCapability& tag : gmp->GetCapabilities()) {
x.capabilities().AppendElement(GMPAPITags(tag.mAPIName, tag.mAPITags));
}
caps.AppendElement(std::move(x));
}
}
for (auto* cp : ContentParent::AllProcesses(ContentParent::eLive)) {
Unused << cp->SendGMPsChanged(caps);
}
// For non-e10s, we must fire a notification so that any MediaKeySystemAccess
// requests waiting on a CDM to download will retry.
nsCOMPtr<nsIObserverService> obsService =
mozilla::services::GetObserverService();
MOZ_ASSERT(obsService);
if (obsService) {
obsService->NotifyObservers(nullptr, "gmp-changed", nullptr);
}
}
RefPtr<GenericPromise> GeckoMediaPluginServiceParent::AsyncAddPluginDirectory(
const nsAString& aDirectory) {
RefPtr<AbstractThread> thread(GetAbstractGMPThread());
if (!thread) {
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
nsString dir(aDirectory);
RefPtr<GeckoMediaPluginServiceParent> self = this;
return InvokeAsync(thread, this, __func__,
&GeckoMediaPluginServiceParent::AddOnGMPThread, dir)
->Then(mMainThread, __func__,
[dir, self](bool aVal) {
LOGD(
("GeckoMediaPluginServiceParent::AsyncAddPluginDirectory %s "
"succeeded",
NS_ConvertUTF16toUTF8(dir).get()));
MOZ_ASSERT(NS_IsMainThread());
self->UpdateContentProcessGMPCapabilities();
return GenericPromise::CreateAndResolve(aVal, __func__);
},
[dir](nsresult aResult) {
LOGD(
("GeckoMediaPluginServiceParent::AsyncAddPluginDirectory %s "
"failed",
NS_ConvertUTF16toUTF8(dir).get()));
return GenericPromise::CreateAndReject(aResult, __func__);
});
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::AddPluginDirectory(const nsAString& aDirectory) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<GenericPromise> p = AsyncAddPluginDirectory(aDirectory);
Unused << p;
return NS_OK;
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::RemovePluginDirectory(
const nsAString& aDirectory) {
MOZ_ASSERT(NS_IsMainThread());
return GMPDispatch(
new PathRunnable(this, aDirectory, PathRunnable::EOperation::REMOVE));
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::RemoveAndDeletePluginDirectory(
const nsAString& aDirectory, const bool aDefer) {
MOZ_ASSERT(NS_IsMainThread());
return GMPDispatch(new PathRunnable(
this, aDirectory, PathRunnable::EOperation::REMOVE_AND_DELETE_FROM_DISK,
aDefer));
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::HasPluginForAPI(const nsACString& aAPI,
nsTArray<nsCString>* aTags,
bool* aHasPlugin) {
NS_ENSURE_ARG(aTags && aTags->Length() > 0);
NS_ENSURE_ARG(aHasPlugin);
nsresult rv = EnsurePluginsOnDiskScanned();
if (NS_FAILED(rv)) {
NS_WARNING("Failed to load GMPs from disk.");
return rv;
}
{
MutexAutoLock lock(mMutex);
nsCString api(aAPI);
size_t index = 0;
RefPtr<GMPParent> gmp = FindPluginForAPIFrom(index, api, *aTags, &index);
*aHasPlugin = !!gmp;
}
return NS_OK;
}
nsresult GeckoMediaPluginServiceParent::EnsurePluginsOnDiskScanned() {
const char* env = nullptr;
if (!mScannedPluginOnDisk && (env = PR_GetEnv("MOZ_GMP_PATH")) && *env) {
// We have a MOZ_GMP_PATH environment variable which may specify the
// location of plugins to load, and we haven't yet scanned the disk to
// see if there are plugins there. Get the GMP thread, which will
// cause an event to be dispatched to which scans for plugins. We
// dispatch a sync event to the GMP thread here in order to wait until
// after the GMP thread has scanned any paths in MOZ_GMP_PATH.
nsresult rv = GMPDispatch(new mozilla::Runnable("GMPDummyRunnable"),
NS_DISPATCH_SYNC);
NS_ENSURE_SUCCESS(rv, rv);
MOZ_ASSERT(mScannedPluginOnDisk, "Should have scanned MOZ_GMP_PATH by now");
}
return NS_OK;
}
already_AddRefed<GMPParent> GeckoMediaPluginServiceParent::FindPluginForAPIFrom(
size_t aSearchStartIndex, const nsCString& aAPI,
const nsTArray<nsCString>& aTags, size_t* aOutPluginIndex) {
mMutex.AssertCurrentThreadOwns();
for (size_t i = aSearchStartIndex; i < mPlugins.Length(); i++) {
RefPtr<GMPParent> gmp = mPlugins[i];
if (!GMPCapability::Supports(gmp->GetCapabilities(), aAPI, aTags)) {
continue;
}
if (aOutPluginIndex) {
*aOutPluginIndex = i;
}
return gmp.forget();
}
return nullptr;
}
already_AddRefed<GMPParent> GeckoMediaPluginServiceParent::SelectPluginForAPI(
const nsACString& aNodeId, const nsCString& aAPI,
const nsTArray<nsCString>& aTags) {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread(),
"Can't clone GMP plugins on non-GMP threads.");
GMPParent* gmpToClone = nullptr;
{
MutexAutoLock lock(mMutex);
size_t index = 0;
RefPtr<GMPParent> gmp;
while ((gmp = FindPluginForAPIFrom(index, aAPI, aTags, &index))) {
if (aNodeId.IsEmpty()) {
if (gmp->CanBeSharedCrossNodeIds()) {
return gmp.forget();
}
} else if (gmp->CanBeUsedFrom(aNodeId)) {
return gmp.forget();
}
if (!gmpToClone ||
(gmpToClone->IsMarkedForDeletion() && !gmp->IsMarkedForDeletion())) {
// This GMP has the correct type but has the wrong nodeId; hold on to it
// in case we need to clone it.
// Prefer GMPs in-use for the case where an upgraded plugin version is
// waiting for the old one to die. If the old plugin is in use, we
// should continue using it so that any persistent state remains
// consistent. Otherwise, just check that the plugin isn't scheduled
// for deletion.
gmpToClone = gmp;
}
// Loop around and try the next plugin; it may be usable from aNodeId.
index++;
}
}
// Plugin exists, but we can't use it due to cross-origin separation. Create a
// new one.
if (gmpToClone) {
RefPtr<GMPParent> clone = ClonePlugin(gmpToClone);
{
MutexAutoLock lock(mMutex);
mPlugins.AppendElement(clone);
}
if (!aNodeId.IsEmpty()) {
clone->SetNodeId(aNodeId);
}
return clone.forget();
}
return nullptr;
}
RefPtr<GMPParent> CreateGMPParent(AbstractThread* aMainThread) {
#if defined(XP_LINUX) && defined(MOZ_GMP_SANDBOX)
if (!SandboxInfo::Get().CanSandboxMedia()) {
if (!StaticPrefs::MediaGmpInsecureAllow()) {
NS_WARNING("Denying media plugin load due to lack of sandboxing.");
return nullptr;
}
NS_WARNING("Loading media plugin despite lack of sandboxing.");
}
#endif
return new GMPParent(aMainThread);
}
already_AddRefed<GMPParent> GeckoMediaPluginServiceParent::ClonePlugin(
const GMPParent* aOriginal) {
MOZ_ASSERT(aOriginal);
RefPtr<GMPParent> gmp = CreateGMPParent(mMainThread);
nsresult rv = gmp ? gmp->CloneFrom(aOriginal) : NS_ERROR_NOT_AVAILABLE;
if (NS_FAILED(rv)) {
NS_WARNING("Can't Create GMPParent");
return nullptr;
}
return gmp.forget();
}
RefPtr<GenericPromise> GeckoMediaPluginServiceParent::AddOnGMPThread(
nsString aDirectory) {
#ifdef XP_WIN
// On Windows our various test harnesses often pass paths with UNIX dir
// separators, or a mix of dir separators. NS_NewLocalFile() can't handle
// that, so fixup to match the platform's expected format. This makes us
// more robust in the face of bad input and test harnesses changing...
std::replace(aDirectory.BeginWriting(), aDirectory.EndWriting(), '/', '\\');
#endif
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
nsCString dir = NS_ConvertUTF16toUTF8(aDirectory);
RefPtr<AbstractThread> thread(GetAbstractGMPThread());
if (!thread) {
LOGD(("%s::%s: %s No GMP Thread", __CLASS__, __FUNCTION__, dir.get()));
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
LOGD(("%s::%s: %s", __CLASS__, __FUNCTION__, dir.get()));
nsCOMPtr<nsIFile> directory;
nsresult rv = NS_NewLocalFile(aDirectory, false, getter_AddRefs(directory));
if (NS_WARN_IF(NS_FAILED(rv))) {
LOGD(("%s::%s: failed to create nsIFile for dir=%s rv=%" PRIx32, __CLASS__,
__FUNCTION__, dir.get(), static_cast<uint32_t>(rv)));
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
RefPtr<GMPParent> gmp = CreateGMPParent(mMainThread);
if (!gmp) {
NS_WARNING("Can't Create GMPParent");
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
RefPtr<GeckoMediaPluginServiceParent> self(this);
return gmp->Init(this, directory)
->Then(
thread, __func__,
[gmp, self, dir](bool aVal) {
LOGD(("%s::%s: %s Succeeded", __CLASS__, __FUNCTION__, dir.get()));
{
MutexAutoLock lock(self->mMutex);
self->mPlugins.AppendElement(gmp);
}
return GenericPromise::CreateAndResolve(aVal, __func__);
},
[dir](nsresult aResult) {
LOGD(("%s::%s: %s Failed", __CLASS__, __FUNCTION__, dir.get()));
return GenericPromise::CreateAndReject(aResult, __func__);
});
}
void GeckoMediaPluginServiceParent::RemoveOnGMPThread(
const nsAString& aDirectory, const bool aDeleteFromDisk,
const bool aCanDefer) {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
LOGD(("%s::%s: %s", __CLASS__, __FUNCTION__,
NS_LossyConvertUTF16toASCII(aDirectory).get()));
nsCOMPtr<nsIFile> directory;
nsresult rv = NS_NewLocalFile(aDirectory, false, getter_AddRefs(directory));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
// Plugin destruction can modify |mPlugins|. Put them aside for now and
// destroy them once we're done with |mPlugins|.
nsTArray<RefPtr<GMPParent>> deadPlugins;
bool inUse = false;
MutexAutoLock lock(mMutex);
for (size_t i = mPlugins.Length(); i-- > 0;) {
nsCOMPtr<nsIFile> pluginpath = mPlugins[i]->GetDirectory();
bool equals;
if (NS_FAILED(directory->Equals(pluginpath, &equals)) || !equals) {
continue;
}
RefPtr<GMPParent> gmp = mPlugins[i];
if (aDeleteFromDisk && gmp->State() != GMPStateNotLoaded) {
// We have to wait for the child process to release its lib handle
// before we can delete the GMP.
inUse = true;
gmp->MarkForDeletion();
if (!mPluginsWaitingForDeletion.Contains(aDirectory)) {
mPluginsWaitingForDeletion.AppendElement(aDirectory);
}
}
if (gmp->State() == GMPStateNotLoaded || !aCanDefer) {
// GMP not in use or shutdown is being forced; can shut it down now.
deadPlugins.AppendElement(gmp);
mPlugins.RemoveElementAt(i);
}
}
{
MutexAutoUnlock unlock(mMutex);
for (auto& gmp : deadPlugins) {
gmp->CloseActive(true);
}
}
if (aDeleteFromDisk && !inUse) {
// Ensure the GMP dir and all files in it are writable, so we have
// permission to delete them.
directory->SetPermissions(0700);
DirectoryEnumerator iter(directory, DirectoryEnumerator::FilesAndDirs);
for (nsCOMPtr<nsIFile> dirEntry; (dirEntry = iter.Next()) != nullptr;) {
dirEntry->SetPermissions(0700);
}
if (NS_SUCCEEDED(directory->Remove(true))) {
mPluginsWaitingForDeletion.RemoveElement(aDirectory);
nsCOMPtr<nsIRunnable> task = new NotifyObserversTask(
"gmp-directory-deleted", nsString(aDirectory));
mMainThread->Dispatch(task.forget());
}
}
}
// May remove when Bug 1043671 is fixed
static void Dummy(RefPtr<GMPParent>& aOnDeathsDoor) {
// exists solely to do nothing and let the Runnable kill the GMPParent
// when done.
}
void GeckoMediaPluginServiceParent::PluginTerminated(
const RefPtr<GMPParent>& aPlugin) {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
if (aPlugin->IsMarkedForDeletion()) {
nsString path;
RefPtr<nsIFile> dir = aPlugin->GetDirectory();
nsresult rv = dir->GetPath(path);
NS_ENSURE_SUCCESS_VOID(rv);
if (mPluginsWaitingForDeletion.Contains(path)) {
RemoveOnGMPThread(path, true /* delete */, true /* can defer */);
}
}
}
void GeckoMediaPluginServiceParent::ReAddOnGMPThread(
const RefPtr<GMPParent>& aOld) {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
LOGD(("%s::%s: %p", __CLASS__, __FUNCTION__, (void*)aOld));
RefPtr<GMPParent> gmp;
if (!mShuttingDownOnGMPThread) {
// We're not shutting down, so replace the old plugin in the list with a
// clone which is in a pristine state. Note: We place the plugin in
// the same slot in the array as a hack to ensure if we re-request with
// the same capabilities we get an instance of the same plugin.
gmp = ClonePlugin(aOld);
MutexAutoLock lock(mMutex);
MOZ_ASSERT(mPlugins.Contains(aOld));
if (mPlugins.Contains(aOld)) {
mPlugins[mPlugins.IndexOf(aOld)] = gmp;
}
} else {
// We're shutting down; don't re-add plugin, let the old plugin die.
MutexAutoLock lock(mMutex);
mPlugins.RemoveElement(aOld);
}
// Schedule aOld to be destroyed. We can't destroy it from here since we
// may be inside ActorDestroyed() for it.
NS_DispatchToCurrentThread(WrapRunnableNM(&Dummy, aOld));
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::GetStorageDir(nsIFile** aOutFile) {
if (NS_WARN_IF(!mStorageBaseDir)) {
return NS_ERROR_FAILURE;
}
return mStorageBaseDir->Clone(aOutFile);
}
static nsresult WriteToFile(nsIFile* aPath, const nsCString& aFileName,
const nsCString& aData) {
nsCOMPtr<nsIFile> path;
nsresult rv = aPath->Clone(getter_AddRefs(path));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = path->AppendNative(aFileName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
PRFileDesc* f = nullptr;
rv = path->OpenNSPRFileDesc(PR_WRONLY | PR_CREATE_FILE, PR_IRWXU, &f);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int32_t len = PR_Write(f, aData.get(), aData.Length());
PR_Close(f);
if (NS_WARN_IF(len < 0 || (size_t)len != aData.Length())) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
static nsresult ReadFromFile(nsIFile* aPath, const nsACString& aFileName,
nsACString& aOutData, int32_t aMaxLength) {
nsCOMPtr<nsIFile> path;
nsresult rv = aPath->Clone(getter_AddRefs(path));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = path->AppendNative(aFileName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
PRFileDesc* f = nullptr;
rv = path->OpenNSPRFileDesc(PR_RDONLY | PR_CREATE_FILE, PR_IRWXU, &f);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
auto size = PR_Seek(f, 0, PR_SEEK_END);
PR_Seek(f, 0, PR_SEEK_SET);
if (size > aMaxLength) {
return NS_ERROR_FAILURE;
}
aOutData.SetLength(size);
auto len = PR_Read(f, aOutData.BeginWriting(), size);
PR_Close(f);
if (NS_WARN_IF(len != size)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult ReadSalt(nsIFile* aPath, nsACString& aOutData) {
return ReadFromFile(aPath, NS_LITERAL_CSTRING("salt"), aOutData,
NodeIdSaltLength);
}
already_AddRefed<GMPStorage> GeckoMediaPluginServiceParent::GetMemoryStorageFor(
const nsACString& aNodeId) {
RefPtr<GMPStorage> s;
if (!mTempGMPStorage.Get(aNodeId, getter_AddRefs(s))) {
s = CreateGMPMemoryStorage();
mTempGMPStorage.Put(aNodeId, s);
}
return s.forget();
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::IsPersistentStorageAllowed(
const nsACString& aNodeId, bool* aOutAllowed) {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
NS_ENSURE_ARG(aOutAllowed);
// We disallow persistent storage for the NodeId used for shared GMP
// decoding, to prevent GMP decoding being used to track what a user
// watches somehow.
*aOutAllowed = !aNodeId.Equals(SHARED_GMP_DECODING_NODE_ID) &&
mPersistentStorageAllowed.Get(aNodeId);
return NS_OK;
}
nsresult GeckoMediaPluginServiceParent::GetNodeId(
const nsAString& aOrigin, const nsAString& aTopLevelOrigin,
const nsAString& aGMPName, nsACString& aOutId) {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
LOGD(("%s::%s: (%s, %s)", __CLASS__, __FUNCTION__,
NS_ConvertUTF16toUTF8(aOrigin).get(),
NS_ConvertUTF16toUTF8(aTopLevelOrigin).get()));
nsresult rv;
if (aOrigin.EqualsLiteral("null") || aOrigin.IsEmpty() ||
aTopLevelOrigin.EqualsLiteral("null") || aTopLevelOrigin.IsEmpty()) {
// (origin, topLevelOrigin) is null or empty; this is for an anonymous
// origin, probably a local file, for which we don't provide persistent
// storage. Generate a random node id, and don't store it so that the GMP's
// storage is temporary and the process for this GMP is not shared with GMP
// instances that have the same nodeId.
nsAutoCString salt;
rv = GenerateRandomPathName(salt, NodeIdSaltLength);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
aOutId = salt;
mPersistentStorageAllowed.Put(salt, false);
return NS_OK;
}
const uint32_t hash =
AddToHash(HashString(aOrigin), HashString(aTopLevelOrigin));
if (OriginAttributes::IsPrivateBrowsing(NS_ConvertUTF16toUTF8(aOrigin))) {
// For PB mode, we store the node id, indexed by the origin pair and GMP
// name, so that if the same origin pair is opened for the same GMP in this
// session, it gets the same node id.
const uint32_t pbHash = AddToHash(HashString(aGMPName), hash);
nsCString* salt = nullptr;
if (!(salt = mTempNodeIds.Get(pbHash))) {
// No salt stored, generate and temporarily store some for this id.
nsAutoCString newSalt;
rv = GenerateRandomPathName(newSalt, NodeIdSaltLength);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
salt = new nsCString(newSalt);
mTempNodeIds.Put(pbHash, salt);
mPersistentStorageAllowed.Put(*salt, false);
}
aOutId = *salt;
return NS_OK;
}
// Otherwise, try to see if we've previously generated and stored salt
// for this origin pair.
nsCOMPtr<nsIFile> path; // $profileDir/gmp/$platform/
rv = GetStorageDir(getter_AddRefs(path));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = path->Append(aGMPName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// $profileDir/gmp/$platform/$gmpName/
rv = path->Create(nsIFile::DIRECTORY_TYPE, 0700);
if (rv != NS_ERROR_FILE_ALREADY_EXISTS && NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = path->AppendNative(NS_LITERAL_CSTRING("id"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// $profileDir/gmp/$platform/$gmpName/id/
rv = path->Create(nsIFile::DIRECTORY_TYPE, 0700);
if (rv != NS_ERROR_FILE_ALREADY_EXISTS && NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoCString hashStr;
hashStr.AppendInt((int64_t)hash);
// $profileDir/gmp/$platform/$gmpName/id/$hash
rv = path->AppendNative(hashStr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = path->Create(nsIFile::DIRECTORY_TYPE, 0700);
if (rv != NS_ERROR_FILE_ALREADY_EXISTS && NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsCOMPtr<nsIFile> saltFile;
rv = path->Clone(getter_AddRefs(saltFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
rv = saltFile->AppendNative(NS_LITERAL_CSTRING("salt"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoCString salt;
bool exists = false;
rv = saltFile->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (!exists) {
// No stored salt for this origin. Generate salt, and store it and
// the origin on disk.
nsresult rv = GenerateRandomPathName(salt, NodeIdSaltLength);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(salt.Length() == NodeIdSaltLength);
// $profileDir/gmp/$platform/$gmpName/id/$hash/salt
rv = WriteToFile(path, NS_LITERAL_CSTRING("salt"), salt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// $profileDir/gmp/$platform/$gmpName/id/$hash/origin
rv = WriteToFile(path, NS_LITERAL_CSTRING("origin"),
NS_ConvertUTF16toUTF8(aOrigin));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// $profileDir/gmp/$platform/$gmpName/id/$hash/topLevelOrigin
rv = WriteToFile(path, NS_LITERAL_CSTRING("topLevelOrigin"),
NS_ConvertUTF16toUTF8(aTopLevelOrigin));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
} else {
rv = ReadSalt(path, salt);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
aOutId = salt;
mPersistentStorageAllowed.Put(salt, true);
return NS_OK;
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::GetNodeId(
const nsAString& aOrigin, const nsAString& aTopLevelOrigin,
const nsAString& aGMPName, UniquePtr<GetNodeIdCallback>&& aCallback) {
nsCString nodeId;
nsresult rv = GetNodeId(aOrigin, aTopLevelOrigin, aGMPName, nodeId);
aCallback->Done(rv, nodeId);
return rv;
}
static bool ExtractHostName(const nsACString& aOrigin, nsACString& aOutData) {
nsCString str;
str.Assign(aOrigin);
int begin = str.Find("://");
// The scheme is missing!
if (begin == -1) {
return false;
}
int end = str.RFind(":");
// Remove the port number
if (end != begin) {
str.SetLength(end);
}
nsDependentCSubstring host(str, begin + 3);
aOutData.Assign(host);
return true;
}
bool MatchOrigin(nsIFile* aPath, const nsACString& aSite,
const mozilla::OriginAttributesPattern& aPattern) {
// http://en.wikipedia.org/wiki/Domain_Name_System#Domain_name_syntax
static const uint32_t MaxDomainLength = 253;
nsresult rv;
nsCString str;
nsCString originNoSuffix;
mozilla::OriginAttributes originAttributes;
rv = ReadFromFile(aPath, NS_LITERAL_CSTRING("origin"), str, MaxDomainLength);
if (!originAttributes.PopulateFromOrigin(str, originNoSuffix)) {
// Fails on parsing the originAttributes, treat this as a non-match.
return false;
}
if (NS_SUCCEEDED(rv) && ExtractHostName(originNoSuffix, str) &&
str.Equals(aSite) && aPattern.Matches(originAttributes)) {
return true;
}
mozilla::OriginAttributes topLevelOriginAttributes;
rv = ReadFromFile(aPath, NS_LITERAL_CSTRING("topLevelOrigin"), str,
MaxDomainLength);
if (!topLevelOriginAttributes.PopulateFromOrigin(str, originNoSuffix)) {
// Fails on paring the originAttributes, treat this as a non-match.
return false;
}
if (NS_SUCCEEDED(rv) && ExtractHostName(originNoSuffix, str) &&
str.Equals(aSite) && aPattern.Matches(topLevelOriginAttributes)) {
return true;
}
return false;
}
template <typename T>
static void KillPlugins(const nsTArray<RefPtr<GMPParent>>& aPlugins,
Mutex& aMutex, T&& aFilter) {
// Shutdown the plugins when |aFilter| evaluates to true.
// After we clear storage data, node IDs will become invalid and shouldn't be
// used anymore. We need to kill plugins with such nodeIDs.
// Note: we can't shut them down while holding the lock,
// as the lock is not re-entrant and shutdown requires taking the lock.
// The plugin list is only edited on the GMP thread, so this should be OK.
nsTArray<RefPtr<GMPParent>> pluginsToKill;
{
MutexAutoLock lock(aMutex);
for (size_t i = 0; i < aPlugins.Length(); i++) {
RefPtr<GMPParent> parent(aPlugins[i]);
if (aFilter(parent)) {
pluginsToKill.AppendElement(parent);
}
}
}
for (size_t i = 0; i < pluginsToKill.Length(); i++) {
pluginsToKill[i]->CloseActive(false);
}
}
static nsresult DeleteDir(nsIFile* aPath) {
bool exists = false;
nsresult rv = aPath->Exists(&exists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (exists) {
return aPath->Remove(true);
}
return NS_OK;
}
struct NodeFilter {
explicit NodeFilter(const nsTArray<nsCString>& nodeIDs) : mNodeIDs(nodeIDs) {}
bool operator()(GMPParent* aParent) {
return mNodeIDs.Contains(aParent->GetNodeId());
}
private:
const nsTArray<nsCString>& mNodeIDs;
};
void GeckoMediaPluginServiceParent::ClearNodeIdAndPlugin(
DirectoryFilter& aFilter) {
// $profileDir/gmp/$platform/
nsCOMPtr<nsIFile> path;
nsresult rv = GetStorageDir(getter_AddRefs(path));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
// Iterate all sub-folders of $profileDir/gmp/$platform/, i.e. the dirs in
// which specific GMPs store their data.
DirectoryEnumerator iter(path, DirectoryEnumerator::DirsOnly);
for (nsCOMPtr<nsIFile> pluginDir; (pluginDir = iter.Next()) != nullptr;) {
ClearNodeIdAndPlugin(pluginDir, aFilter);
}
}
void GeckoMediaPluginServiceParent::ClearNodeIdAndPlugin(
nsIFile* aPluginStorageDir, DirectoryFilter& aFilter) {
// $profileDir/gmp/$platform/$gmpName/id/
nsCOMPtr<nsIFile> path =
CloneAndAppend(aPluginStorageDir, NS_LITERAL_STRING("id"));
if (!path) {
return;
}
// Iterate all sub-folders of $profileDir/gmp/$platform/$gmpName/id/
nsTArray<nsCString> nodeIDsToClear;
DirectoryEnumerator iter(path, DirectoryEnumerator::DirsOnly);
for (nsCOMPtr<nsIFile> dirEntry; (dirEntry = iter.Next()) != nullptr;) {
// dirEntry is the hash of origins, i.e.:
// $profileDir/gmp/$platform/$gmpName/id/$originHash/
if (!aFilter(dirEntry)) {
continue;
}
nsAutoCString salt;
if (NS_SUCCEEDED(ReadSalt(dirEntry, salt))) {
// Keep node IDs to clear data/plugins associated with them later.
nodeIDsToClear.AppendElement(salt);
// Also remove node IDs from the table.
mPersistentStorageAllowed.Remove(salt);
}
// Now we can remove the directory for the origin pair.
if (NS_FAILED(dirEntry->Remove(true))) {
NS_WARNING("Failed to delete the directory for the origin pair");
}
}
// Kill plugin instances that have node IDs being cleared.
KillPlugins(mPlugins, mMutex, NodeFilter(nodeIDsToClear));
// Clear all storage in $profileDir/gmp/$platform/$gmpName/storage/$nodeId/
path = CloneAndAppend(aPluginStorageDir, NS_LITERAL_STRING("storage"));
if (!path) {
return;
}
for (const nsCString& nodeId : nodeIDsToClear) {
nsCOMPtr<nsIFile> dirEntry;
nsresult rv = path->Clone(getter_AddRefs(dirEntry));
if (NS_WARN_IF(NS_FAILED(rv))) {
continue;
}
rv = dirEntry->AppendNative(nodeId);
if (NS_WARN_IF(NS_FAILED(rv))) {
continue;
}
if (NS_FAILED(DeleteDir(dirEntry))) {
NS_WARNING("Failed to delete GMP storage directory for the node");
}
}
}
void GeckoMediaPluginServiceParent::ForgetThisSiteOnGMPThread(
const nsACString& aSite, const mozilla::OriginAttributesPattern& aPattern) {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
LOGD(("%s::%s: origin=%s", __CLASS__, __FUNCTION__, aSite.Data()));
struct OriginFilter : public DirectoryFilter {
explicit OriginFilter(const nsACString& aSite,
const mozilla::OriginAttributesPattern& aPattern)
: mSite(aSite), mPattern(aPattern) {}
bool operator()(nsIFile* aPath) override {
return MatchOrigin(aPath, mSite, mPattern);
}
private:
const nsACString& mSite;
const mozilla::OriginAttributesPattern& mPattern;
} filter(aSite, aPattern);
ClearNodeIdAndPlugin(filter);
}
void GeckoMediaPluginServiceParent::ClearRecentHistoryOnGMPThread(
PRTime aSince) {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
LOGD(("%s::%s: since=%" PRId64, __CLASS__, __FUNCTION__, (int64_t)aSince));
struct MTimeFilter : public DirectoryFilter {
explicit MTimeFilter(PRTime aSince) : mSince(aSince) {}
// Return true if any files under aPath is modified after |mSince|.
bool IsModifiedAfter(nsIFile* aPath) {
PRTime lastModified;
nsresult rv = aPath->GetLastModifiedTime(&lastModified);
if (NS_SUCCEEDED(rv) && lastModified >= mSince) {
return true;
}
DirectoryEnumerator iter(aPath, DirectoryEnumerator::FilesAndDirs);
for (nsCOMPtr<nsIFile> dirEntry; (dirEntry = iter.Next()) != nullptr;) {
if (IsModifiedAfter(dirEntry)) {
return true;
}
}
return false;
}
// |aPath| is $profileDir/gmp/$platform/$gmpName/id/$originHash/
bool operator()(nsIFile* aPath) override {
if (IsModifiedAfter(aPath)) {
return true;
}
nsAutoCString salt;
if (NS_WARN_IF(NS_FAILED(ReadSalt(aPath, salt)))) {
return false;
}
// $profileDir/gmp/$platform/$gmpName/id/
nsCOMPtr<nsIFile> idDir;
if (NS_WARN_IF(NS_FAILED(aPath->GetParent(getter_AddRefs(idDir))))) {
return false;
}
// $profileDir/gmp/$platform/$gmpName/
nsCOMPtr<nsIFile> temp;
if (NS_WARN_IF(NS_FAILED(idDir->GetParent(getter_AddRefs(temp))))) {
return false;
}
// $profileDir/gmp/$platform/$gmpName/storage/
if (NS_WARN_IF(NS_FAILED(temp->Append(NS_LITERAL_STRING("storage"))))) {
return false;
}
// $profileDir/gmp/$platform/$gmpName/storage/$originSalt
return NS_SUCCEEDED(temp->AppendNative(salt)) && IsModifiedAfter(temp);
}
private:
const PRTime mSince;
} filter(aSince);
ClearNodeIdAndPlugin(filter);
nsCOMPtr<nsIRunnable> task =
new NotifyObserversTask("gmp-clear-storage-complete");
mMainThread->Dispatch(task.forget());
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::ForgetThisSite(const nsAString& aSite,
const nsAString& aPattern) {
MOZ_ASSERT(NS_IsMainThread());
mozilla::OriginAttributesPattern pattern;
if (!pattern.Init(aPattern)) {
return NS_ERROR_INVALID_ARG;
}
return ForgetThisSiteNative(aSite, pattern);
}
nsresult GeckoMediaPluginServiceParent::ForgetThisSiteNative(
const nsAString& aSite, const mozilla::OriginAttributesPattern& aPattern) {
MOZ_ASSERT(NS_IsMainThread());
return GMPDispatch(
NewRunnableMethod<nsCString, mozilla::OriginAttributesPattern>(
"gmp::GeckoMediaPluginServiceParent::ForgetThisSiteOnGMPThread", this,
&GeckoMediaPluginServiceParent::ForgetThisSiteOnGMPThread,
NS_ConvertUTF16toUTF8(aSite), aPattern));
}
static bool IsNodeIdValid(GMPParent* aParent) {
return !aParent->GetNodeId().IsEmpty();
}
static nsCOMPtr<nsIAsyncShutdownClient> GetShutdownBarrier() {
nsCOMPtr<nsIAsyncShutdownService> svc = services::GetAsyncShutdown();
MOZ_RELEASE_ASSERT(svc);
nsCOMPtr<nsIAsyncShutdownClient> barrier;
nsresult rv = svc->GetXpcomWillShutdown(getter_AddRefs(barrier));
MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
MOZ_RELEASE_ASSERT(barrier);
return barrier.forget();
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::GetName(nsAString& aName) {
aName = NS_LITERAL_STRING("GeckoMediaPluginServiceParent: shutdown");
return NS_OK;
}
NS_IMETHODIMP
GeckoMediaPluginServiceParent::GetState(nsIPropertyBag**) { return NS_OK; }
NS_IMETHODIMP
GeckoMediaPluginServiceParent::BlockShutdown(nsIAsyncShutdownClient*) {
return NS_OK;
}
void GeckoMediaPluginServiceParent::ServiceUserCreated(
GMPServiceParent* aServiceParent) {
MOZ_ASSERT(NS_IsMainThread());
MutexAutoLock lock(mMutex);
MOZ_ASSERT(!mServiceParents.Contains(aServiceParent));
mServiceParents.AppendElement(aServiceParent);
if (mServiceParents.Length() == 1) {
nsresult rv = GetShutdownBarrier()->AddBlocker(
this, NS_LITERAL_STRING(__FILE__), __LINE__,
NS_LITERAL_STRING("GeckoMediaPluginServiceParent shutdown"));
MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
}
}
void GeckoMediaPluginServiceParent::ServiceUserDestroyed(
GMPServiceParent* aServiceParent) {
MOZ_ASSERT(NS_IsMainThread());
MutexAutoLock lock(mMutex);
MOZ_ASSERT(mServiceParents.Length() > 0);
MOZ_ASSERT(mServiceParents.Contains(aServiceParent));
mServiceParents.RemoveElement(aServiceParent);
if (mServiceParents.IsEmpty()) {
nsresult rv = GetShutdownBarrier()->RemoveBlocker(this);
MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
}
}
void GeckoMediaPluginServiceParent::ClearStorage() {
MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
LOGD(("%s::%s", __CLASS__, __FUNCTION__));
// Kill plugins with valid nodeIDs.
KillPlugins(mPlugins, mMutex, &IsNodeIdValid);
nsCOMPtr<nsIFile> path; // $profileDir/gmp/$platform/
nsresult rv = GetStorageDir(getter_AddRefs(path));
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
if (NS_FAILED(DeleteDir(path))) {
NS_WARNING("Failed to delete GMP storage directory");
}
// Clear private-browsing storage.
mTempGMPStorage.Clear();
nsCOMPtr<nsIRunnable> task =
new NotifyObserversTask("gmp-clear-storage-complete");
mMainThread->Dispatch(task.forget());
}
already_AddRefed<GMPParent> GeckoMediaPluginServiceParent::GetById(
uint32_t aPluginId) {
MutexAutoLock lock(mMutex);
for (const RefPtr<GMPParent>& gmp : mPlugins) {
if (gmp->GetPluginId() == aPluginId) {
return do_AddRef(gmp);
}
}
return nullptr;
}
GMPServiceParent::GMPServiceParent(GeckoMediaPluginServiceParent* aService)
: mService(aService) {
MOZ_ASSERT(mService);
mService->ServiceUserCreated(this);
}
GMPServiceParent::~GMPServiceParent() {
MOZ_ASSERT(mService);
mService->ServiceUserDestroyed(this);
}
mozilla::ipc::IPCResult GMPServiceParent::RecvLaunchGMP(
const nsCString& aNodeId, const nsCString& aAPI,
nsTArray<nsCString>&& aTags, nsTArray<ProcessId>&& aAlreadyBridgedTo,
uint32_t* aOutPluginId, ProcessId* aOutProcessId,
nsCString* aOutDisplayName, Endpoint<PGMPContentParent>* aOutEndpoint,
nsresult* aOutRv, nsCString* aOutErrorDescription) {
if (mService->IsShuttingDown()) {
*aOutRv = NS_ERROR_ILLEGAL_DURING_SHUTDOWN;
*aOutErrorDescription = NS_LITERAL_CSTRING("Service is shutting down.");
return IPC_OK();
}
RefPtr<GMPParent> gmp = mService->SelectPluginForAPI(aNodeId, aAPI, aTags);
if (gmp) {
*aOutPluginId = gmp->GetPluginId();
} else {
*aOutRv = NS_ERROR_FAILURE;
*aOutErrorDescription =
NS_LITERAL_CSTRING("SelectPluginForAPI returns nullptr.");
*aOutPluginId = 0;
return IPC_OK();
}
if (!gmp->EnsureProcessLoaded(aOutProcessId)) {
*aOutRv = NS_ERROR_FAILURE;
*aOutErrorDescription = NS_LITERAL_CSTRING("Process has not loaded.");
return IPC_OK();
}
*aOutDisplayName = gmp->GetDisplayName();
if (aAlreadyBridgedTo.Contains(*aOutProcessId)) {
*aOutRv = NS_OK;
return IPC_OK();
}
Endpoint<PGMPContentParent> parent;
Endpoint<PGMPContentChild> child;
nsresult rv =
PGMPContent::CreateEndpoints(OtherPid(), *aOutProcessId, &parent, &child);
if (NS_WARN_IF(NS_FAILED(rv))) {
*aOutRv = rv;
*aOutErrorDescription =
NS_LITERAL_CSTRING("PGMPContent::CreateEndpoints failed.");
return IPC_OK();
}
*aOutEndpoint = std::move(parent);
if (!gmp->SendInitGMPContentChild(std::move(child))) {
*aOutRv = NS_ERROR_FAILURE;
*aOutErrorDescription =
NS_LITERAL_CSTRING("SendInitGMPContentChild failed.");
return IPC_OK();
}
gmp->IncrementGMPContentChildCount();
*aOutRv = NS_OK;
return IPC_OK();
}
mozilla::ipc::IPCResult GMPServiceParent::RecvLaunchGMPForNodeId(
const NodeIdData& aNodeId, const nsCString& aApi,
nsTArray<nsCString>&& aTags, nsTArray<ProcessId>&& aAlreadyBridgedTo,
uint32_t* aOutPluginId, ProcessId* aOutId, nsCString* aOutDisplayName,
Endpoint<PGMPContentParent>* aOutEndpoint, nsresult* aOutRv,
nsCString* aOutErrorDescription) {
nsCString nodeId;
nsresult rv = mService->GetNodeId(
aNodeId.mOrigin(), aNodeId.mTopLevelOrigin(), aNodeId.mGMPName(), nodeId);
if (!NS_SUCCEEDED(rv)) {
*aOutRv = rv;
*aOutErrorDescription = NS_LITERAL_CSTRING("GetNodeId failed.");
return IPC_OK();
}
return RecvLaunchGMP(nodeId, aApi, std::move(aTags),
std::move(aAlreadyBridgedTo), aOutPluginId, aOutId,
aOutDisplayName, aOutEndpoint, aOutRv,
aOutErrorDescription);
}
mozilla::ipc::IPCResult GMPServiceParent::RecvGetGMPNodeId(
const nsString& aOrigin, const nsString& aTopLevelOrigin,
const nsString& aGMPName, nsCString* aID) {
nsresult rv = mService->GetNodeId(aOrigin, aTopLevelOrigin, aGMPName, *aID);
if (!NS_SUCCEEDED(rv)) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
class DeleteGMPServiceParent : public mozilla::Runnable {
public:
explicit DeleteGMPServiceParent(GMPServiceParent* aToDelete)
: Runnable("gmp::DeleteGMPServiceParent"), mToDelete(aToDelete) {}
NS_IMETHOD Run() override { return NS_OK; }
private:
nsAutoPtr<GMPServiceParent> mToDelete;
};
void GMPServiceParent::CloseTransport(Monitor* aSyncMonitor, bool* aCompleted) {
MOZ_ASSERT(MessageLoop::current() == XRE_GetIOMessageLoop());
MonitorAutoLock lock(*aSyncMonitor);
// This deletes the transport.
SetTransport(nullptr);
*aCompleted = true;
lock.NotifyAll();
}
void GMPServiceParent::ActorDestroy(ActorDestroyReason aWhy) {
Monitor monitor("DeleteGMPServiceParent");
bool completed = false;
// Make sure the IPC channel is closed before destroying mToDelete.
MonitorAutoLock lock(monitor);
RefPtr<Runnable> task = NewNonOwningRunnableMethod<Monitor*, bool*>(
"gmp::GMPServiceParent::CloseTransport", this,
&GMPServiceParent::CloseTransport, &monitor, &completed);
XRE_GetIOMessageLoop()->PostTask(task.forget());
while (!completed) {
lock.Wait();
}
// Dispatch a task to the current thread to ensure we don't delete the
// GMPServiceParent until the current calling context is finished with
// the object.
GMPServiceParent* self = this;
NS_DispatchToCurrentThread(
NS_NewRunnableFunction("gmp::GMPServiceParent::ActorDestroy", [self]() {
// The GMPServiceParent must be destroyed on the main thread.
self->mService->mMainThread->Dispatch(
NS_NewRunnableFunction("gmp::GMPServiceParent::ActorDestroy",
[self]() { delete self; }),
NS_DISPATCH_NORMAL);
}));
}
class OpenPGMPServiceParent : public mozilla::Runnable {
public:
OpenPGMPServiceParent(GMPServiceParent* aGMPServiceParent,
ipc::Endpoint<PGMPServiceParent>&& aEndpoint,
bool* aResult)
: Runnable("gmp::OpenPGMPServiceParent"),
mGMPServiceParent(aGMPServiceParent),
mEndpoint(std::move(aEndpoint)),
mResult(aResult) {}
NS_IMETHOD Run() override {
*mResult = mEndpoint.Bind(mGMPServiceParent);
return NS_OK;
}
private:
GMPServiceParent* mGMPServiceParent;
ipc::Endpoint<PGMPServiceParent> mEndpoint;
bool* mResult;
};
/* static */
bool GMPServiceParent::Create(Endpoint<PGMPServiceParent>&& aGMPService) {
RefPtr<GeckoMediaPluginServiceParent> gmp =
GeckoMediaPluginServiceParent::GetSingleton();
if (gmp->mShuttingDown) {
// Shutdown is initiated. There is no point creating a new actor.
return false;
}
nsCOMPtr<nsIThread> gmpThread;
nsresult rv = gmp->GetThread(getter_AddRefs(gmpThread));
NS_ENSURE_SUCCESS(rv, false);
nsAutoPtr<GMPServiceParent> serviceParent(new GMPServiceParent(gmp));
bool ok;
rv = gmpThread->Dispatch(
new OpenPGMPServiceParent(serviceParent, std::move(aGMPService), &ok),
NS_DISPATCH_SYNC);
if (NS_WARN_IF(NS_FAILED(rv) || !ok)) {
return false;
}
// Now that the service parent is set up, it will be destroyed by
// ActorDestroy.
Unused << serviceParent.forget();
return true;
}
} // namespace gmp
} // namespace mozilla
#undef NS_DispatchToMainThread
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