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-rw-r--r--dom/media/gmp/GMPService.cpp568
1 files changed, 568 insertions, 0 deletions
diff --git a/dom/media/gmp/GMPService.cpp b/dom/media/gmp/GMPService.cpp
new file mode 100644
index 000000000..65f4037ee
--- /dev/null
+++ b/dom/media/gmp/GMPService.cpp
@@ -0,0 +1,568 @@
+/* -*- 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 "GMPService.h"
+#include "GMPServiceParent.h"
+#include "GMPServiceChild.h"
+#include "GMPContentParent.h"
+#include "prio.h"
+#include "mozilla/Logging.h"
+#include "GMPParent.h"
+#include "GMPVideoDecoderParent.h"
+#include "nsIObserverService.h"
+#include "GeckoChildProcessHost.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 "GMPDecryptorParent.h"
+#include "GMPAudioDecoderParent.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 "nsThreadUtils.h"
+
+#include "mozilla/dom/PluginCrashedEvent.h"
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/Attributes.h"
+
+namespace mozilla {
+
+#ifdef LOG
+#undef LOG
+#endif
+
+LogModule*
+GetGMPLog()
+{
+ static LazyLogModule sLog("GMP");
+ return sLog;
+}
+
+#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"
+
+namespace gmp {
+
+static StaticRefPtr<GeckoMediaPluginService> sSingletonService;
+
+class GMPServiceCreateHelper final : public mozilla::Runnable
+{
+ RefPtr<GeckoMediaPluginService> mService;
+
+public:
+ static already_AddRefed<GeckoMediaPluginService>
+ GetOrCreate()
+ {
+ RefPtr<GeckoMediaPluginService> service;
+
+ if (NS_IsMainThread()) {
+ service = GetOrCreateOnMainThread();
+ } else {
+ nsCOMPtr<nsIThread> mainThread = do_GetMainThread();
+ MOZ_ASSERT(mainThread);
+
+ RefPtr<GMPServiceCreateHelper> createHelper = new GMPServiceCreateHelper();
+
+ mozilla::SyncRunnable::DispatchToThread(mainThread, createHelper, true);
+
+ service = createHelper->mService.forget();
+ }
+
+ return service.forget();
+ }
+
+private:
+ GMPServiceCreateHelper()
+ {
+ }
+
+ ~GMPServiceCreateHelper()
+ {
+ MOZ_ASSERT(!mService);
+ }
+
+ static already_AddRefed<GeckoMediaPluginService>
+ GetOrCreateOnMainThread()
+ {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ if (!sSingletonService) {
+ if (XRE_IsParentProcess()) {
+ RefPtr<GeckoMediaPluginServiceParent> service =
+ new GeckoMediaPluginServiceParent();
+ service->Init();
+ sSingletonService = service;
+ } else {
+ RefPtr<GeckoMediaPluginServiceChild> service =
+ new GeckoMediaPluginServiceChild();
+ service->Init();
+ sSingletonService = service;
+ }
+
+ ClearOnShutdown(&sSingletonService);
+ }
+
+ RefPtr<GeckoMediaPluginService> service = sSingletonService.get();
+ return service.forget();
+ }
+
+ NS_IMETHOD
+ Run() override
+ {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ mService = GetOrCreateOnMainThread();
+ return NS_OK;
+ }
+};
+
+already_AddRefed<GeckoMediaPluginService>
+GeckoMediaPluginService::GetGeckoMediaPluginService()
+{
+ return GMPServiceCreateHelper::GetOrCreate();
+}
+
+NS_IMPL_ISUPPORTS(GeckoMediaPluginService, mozIGeckoMediaPluginService, nsIObserver)
+
+GeckoMediaPluginService::GeckoMediaPluginService()
+ : mMutex("GeckoMediaPluginService::mMutex")
+ , mGMPThreadShutdown(false)
+ , mShuttingDownOnGMPThread(false)
+{
+ MOZ_ASSERT(NS_IsMainThread());
+}
+
+GeckoMediaPluginService::~GeckoMediaPluginService()
+{
+}
+
+NS_IMETHODIMP
+GeckoMediaPluginService::RunPluginCrashCallbacks(uint32_t aPluginId,
+ const nsACString& aPluginName)
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ LOGD(("%s::%s(%i)", __CLASS__, __FUNCTION__, aPluginId));
+
+ nsAutoPtr<nsTArray<RefPtr<GMPCrashHelper>>> helpers;
+ {
+ MutexAutoLock lock(mMutex);
+ mPluginCrashHelpers.RemoveAndForget(aPluginId, helpers);
+ }
+ if (!helpers) {
+ LOGD(("%s::%s(%i) No crash helpers, not handling crash.", __CLASS__, __FUNCTION__, aPluginId));
+ return NS_OK;
+ }
+
+ for (const auto& helper : *helpers) {
+ nsCOMPtr<nsPIDOMWindowInner> window = helper->GetPluginCrashedEventTarget();
+ if (NS_WARN_IF(!window)) {
+ continue;
+ }
+ nsCOMPtr<nsIDocument> document(window->GetExtantDoc());
+ if (NS_WARN_IF(!document)) {
+ continue;
+ }
+
+ dom::PluginCrashedEventInit init;
+ init.mPluginID = aPluginId;
+ init.mBubbles = true;
+ init.mCancelable = true;
+ init.mGmpPlugin = true;
+ CopyUTF8toUTF16(aPluginName, init.mPluginName);
+ init.mSubmittedCrashReport = false;
+ RefPtr<dom::PluginCrashedEvent> event =
+ dom::PluginCrashedEvent::Constructor(document,
+ NS_LITERAL_STRING("PluginCrashed"),
+ init);
+ event->SetTrusted(true);
+ event->WidgetEventPtr()->mFlags.mOnlyChromeDispatch = true;
+
+ EventDispatcher::DispatchDOMEvent(window, nullptr, event, nullptr, nullptr);
+ }
+
+ return NS_OK;
+}
+
+nsresult
+GeckoMediaPluginService::Init()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+
+ nsCOMPtr<nsIObserverService> obsService = mozilla::services::GetObserverService();
+ MOZ_ASSERT(obsService);
+ MOZ_ALWAYS_SUCCEEDS(obsService->AddObserver(this, NS_XPCOM_SHUTDOWN_THREADS_OBSERVER_ID, false));
+
+ // Kick off scanning for plugins
+ nsCOMPtr<nsIThread> thread;
+ return GetThread(getter_AddRefs(thread));
+}
+
+void
+GeckoMediaPluginService::ShutdownGMPThread()
+{
+ LOGD(("%s::%s", __CLASS__, __FUNCTION__));
+ nsCOMPtr<nsIThread> gmpThread;
+ {
+ MutexAutoLock lock(mMutex);
+ mGMPThreadShutdown = true;
+ mGMPThread.swap(gmpThread);
+ mAbstractGMPThread = nullptr;
+ }
+
+ if (gmpThread) {
+ gmpThread->Shutdown();
+ }
+}
+
+nsresult
+GeckoMediaPluginService::GMPDispatch(nsIRunnable* event,
+ uint32_t flags)
+{
+ nsCOMPtr<nsIRunnable> r(event);
+ return GMPDispatch(r.forget());
+}
+
+nsresult
+GeckoMediaPluginService::GMPDispatch(already_AddRefed<nsIRunnable> event,
+ uint32_t flags)
+{
+ nsCOMPtr<nsIRunnable> r(event);
+ nsCOMPtr<nsIThread> thread;
+ nsresult rv = GetThread(getter_AddRefs(thread));
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ return thread->Dispatch(r, flags);
+}
+
+// always call with getter_AddRefs, because it does
+NS_IMETHODIMP
+GeckoMediaPluginService::GetThread(nsIThread** aThread)
+{
+ MOZ_ASSERT(aThread);
+
+ // This can be called from any thread.
+ MutexAutoLock lock(mMutex);
+
+ if (!mGMPThread) {
+ // Don't allow the thread to be created after shutdown has started.
+ if (mGMPThreadShutdown) {
+ return NS_ERROR_FAILURE;
+ }
+
+ nsresult rv = NS_NewNamedThread("GMPThread", getter_AddRefs(mGMPThread));
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ mAbstractGMPThread = AbstractThread::CreateXPCOMThreadWrapper(mGMPThread, false);
+
+ // Tell the thread to initialize plugins
+ InitializePlugins(mAbstractGMPThread.get());
+ }
+
+ nsCOMPtr<nsIThread> copy = mGMPThread;
+ copy.forget(aThread);
+
+ return NS_OK;
+}
+
+RefPtr<AbstractThread>
+GeckoMediaPluginService::GetAbstractGMPThread()
+{
+ MutexAutoLock lock(mMutex);
+ return mAbstractGMPThread;
+}
+
+class GetGMPContentParentForAudioDecoderDone : public GetGMPContentParentCallback
+{
+public:
+ explicit GetGMPContentParentForAudioDecoderDone(UniquePtr<GetGMPAudioDecoderCallback>&& aCallback,
+ GMPCrashHelper* aHelper)
+ : mCallback(Move(aCallback))
+ , mHelper(aHelper)
+ {
+ }
+
+ void Done(GMPContentParent* aGMPParent) override
+ {
+ GMPAudioDecoderParent* gmpADP = nullptr;
+ if (aGMPParent && NS_SUCCEEDED(aGMPParent->GetGMPAudioDecoder(&gmpADP))) {
+ gmpADP->SetCrashHelper(mHelper);
+ }
+ mCallback->Done(gmpADP);
+ }
+
+private:
+ UniquePtr<GetGMPAudioDecoderCallback> mCallback;
+ RefPtr<GMPCrashHelper> mHelper;
+};
+
+NS_IMETHODIMP
+GeckoMediaPluginService::GetGMPAudioDecoder(GMPCrashHelper* aHelper,
+ nsTArray<nsCString>* aTags,
+ const nsACString& aNodeId,
+ UniquePtr<GetGMPAudioDecoderCallback>&& aCallback)
+{
+ MOZ_ASSERT(NS_GetCurrentThread() == mGMPThread);
+ NS_ENSURE_ARG(aTags && aTags->Length() > 0);
+ NS_ENSURE_ARG(aCallback);
+
+ if (mShuttingDownOnGMPThread) {
+ return NS_ERROR_FAILURE;
+ }
+
+ UniquePtr<GetGMPContentParentCallback> callback(
+ new GetGMPContentParentForAudioDecoderDone(Move(aCallback), aHelper));
+ if (!GetContentParentFrom(aHelper,
+ aNodeId,
+ NS_LITERAL_CSTRING(GMP_API_AUDIO_DECODER),
+ *aTags,
+ Move(callback))) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return NS_OK;
+}
+
+class GetGMPContentParentForVideoDecoderDone : public GetGMPContentParentCallback
+{
+public:
+ explicit GetGMPContentParentForVideoDecoderDone(UniquePtr<GetGMPVideoDecoderCallback>&& aCallback,
+ GMPCrashHelper* aHelper,
+ uint32_t aDecryptorId)
+ : mCallback(Move(aCallback))
+ , mHelper(aHelper)
+ , mDecryptorId(aDecryptorId)
+ {
+ }
+
+ void Done(GMPContentParent* aGMPParent) override
+ {
+ GMPVideoDecoderParent* gmpVDP = nullptr;
+ GMPVideoHostImpl* videoHost = nullptr;
+ if (aGMPParent && NS_SUCCEEDED(aGMPParent->GetGMPVideoDecoder(&gmpVDP, mDecryptorId))) {
+ videoHost = &gmpVDP->Host();
+ gmpVDP->SetCrashHelper(mHelper);
+ }
+ mCallback->Done(gmpVDP, videoHost);
+ }
+
+private:
+ UniquePtr<GetGMPVideoDecoderCallback> mCallback;
+ RefPtr<GMPCrashHelper> mHelper;
+ const uint32_t mDecryptorId;
+};
+
+NS_IMETHODIMP
+GeckoMediaPluginService::GetDecryptingGMPVideoDecoder(GMPCrashHelper* aHelper,
+ nsTArray<nsCString>* aTags,
+ const nsACString& aNodeId,
+ UniquePtr<GetGMPVideoDecoderCallback>&& aCallback,
+ uint32_t aDecryptorId)
+{
+ MOZ_ASSERT(NS_GetCurrentThread() == mGMPThread);
+ NS_ENSURE_ARG(aTags && aTags->Length() > 0);
+ NS_ENSURE_ARG(aCallback);
+
+ if (mShuttingDownOnGMPThread) {
+ return NS_ERROR_FAILURE;
+ }
+
+ UniquePtr<GetGMPContentParentCallback> callback(
+ new GetGMPContentParentForVideoDecoderDone(Move(aCallback), aHelper, aDecryptorId));
+ if (!GetContentParentFrom(aHelper,
+ aNodeId,
+ NS_LITERAL_CSTRING(GMP_API_VIDEO_DECODER),
+ *aTags,
+ Move(callback))) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return NS_OK;
+}
+
+class GetGMPContentParentForVideoEncoderDone : public GetGMPContentParentCallback
+{
+public:
+ explicit GetGMPContentParentForVideoEncoderDone(UniquePtr<GetGMPVideoEncoderCallback>&& aCallback,
+ GMPCrashHelper* aHelper)
+ : mCallback(Move(aCallback))
+ , mHelper(aHelper)
+ {
+ }
+
+ void Done(GMPContentParent* aGMPParent) override
+ {
+ GMPVideoEncoderParent* gmpVEP = nullptr;
+ GMPVideoHostImpl* videoHost = nullptr;
+ if (aGMPParent && NS_SUCCEEDED(aGMPParent->GetGMPVideoEncoder(&gmpVEP))) {
+ videoHost = &gmpVEP->Host();
+ gmpVEP->SetCrashHelper(mHelper);
+ }
+ mCallback->Done(gmpVEP, videoHost);
+ }
+
+private:
+ UniquePtr<GetGMPVideoEncoderCallback> mCallback;
+ RefPtr<GMPCrashHelper> mHelper;
+};
+
+NS_IMETHODIMP
+GeckoMediaPluginService::GetGMPVideoEncoder(GMPCrashHelper* aHelper,
+ nsTArray<nsCString>* aTags,
+ const nsACString& aNodeId,
+ UniquePtr<GetGMPVideoEncoderCallback>&& aCallback)
+{
+ MOZ_ASSERT(NS_GetCurrentThread() == mGMPThread);
+ NS_ENSURE_ARG(aTags && aTags->Length() > 0);
+ NS_ENSURE_ARG(aCallback);
+
+ if (mShuttingDownOnGMPThread) {
+ return NS_ERROR_FAILURE;
+ }
+
+ UniquePtr<GetGMPContentParentCallback> callback(
+ new GetGMPContentParentForVideoEncoderDone(Move(aCallback), aHelper));
+ if (!GetContentParentFrom(aHelper,
+ aNodeId,
+ NS_LITERAL_CSTRING(GMP_API_VIDEO_ENCODER),
+ *aTags,
+ Move(callback))) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return NS_OK;
+}
+
+class GetGMPContentParentForDecryptorDone : public GetGMPContentParentCallback
+{
+public:
+ explicit GetGMPContentParentForDecryptorDone(UniquePtr<GetGMPDecryptorCallback>&& aCallback,
+ GMPCrashHelper* aHelper)
+ : mCallback(Move(aCallback))
+ , mHelper(aHelper)
+ {
+ }
+
+ void Done(GMPContentParent* aGMPParent) override
+ {
+ GMPDecryptorParent* ksp = nullptr;
+ if (aGMPParent && NS_SUCCEEDED(aGMPParent->GetGMPDecryptor(&ksp))) {
+ ksp->SetCrashHelper(mHelper);
+ }
+ mCallback->Done(ksp);
+ }
+
+private:
+ UniquePtr<GetGMPDecryptorCallback> mCallback;
+ RefPtr<GMPCrashHelper> mHelper;
+};
+
+NS_IMETHODIMP
+GeckoMediaPluginService::GetGMPDecryptor(GMPCrashHelper* aHelper,
+ nsTArray<nsCString>* aTags,
+ const nsACString& aNodeId,
+ UniquePtr<GetGMPDecryptorCallback>&& aCallback)
+{
+#if defined(XP_LINUX) && defined(MOZ_GMP_SANDBOX)
+ if (!SandboxInfo::Get().CanSandboxMedia()) {
+ NS_WARNING("GeckoMediaPluginService::GetGMPDecryptor: "
+ "EME decryption not available without sandboxing support.");
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+#endif
+
+ MOZ_ASSERT(NS_GetCurrentThread() == mGMPThread);
+ NS_ENSURE_ARG(aTags && aTags->Length() > 0);
+ NS_ENSURE_ARG(aCallback);
+
+ if (mShuttingDownOnGMPThread) {
+ return NS_ERROR_FAILURE;
+ }
+
+ UniquePtr<GetGMPContentParentCallback> callback(
+ new GetGMPContentParentForDecryptorDone(Move(aCallback), aHelper));
+ if (!GetContentParentFrom(aHelper,
+ aNodeId,
+ NS_LITERAL_CSTRING(GMP_API_DECRYPTOR),
+ *aTags,
+ Move(callback))) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return NS_OK;
+}
+
+void
+GeckoMediaPluginService::ConnectCrashHelper(uint32_t aPluginId, GMPCrashHelper* aHelper)
+{
+ if (!aHelper) {
+ return;
+ }
+ MutexAutoLock lock(mMutex);
+ nsTArray<RefPtr<GMPCrashHelper>>* helpers;
+ if (!mPluginCrashHelpers.Get(aPluginId, &helpers)) {
+ helpers = new nsTArray<RefPtr<GMPCrashHelper>>();
+ mPluginCrashHelpers.Put(aPluginId, helpers);
+ } else if (helpers->Contains(aHelper)) {
+ return;
+ }
+ helpers->AppendElement(aHelper);
+}
+
+void GeckoMediaPluginService::DisconnectCrashHelper(GMPCrashHelper* aHelper)
+{
+ if (!aHelper) {
+ return;
+ }
+ MutexAutoLock lock(mMutex);
+ for (auto iter = mPluginCrashHelpers.Iter(); !iter.Done(); iter.Next()) {
+ nsTArray<RefPtr<GMPCrashHelper>>* helpers = iter.Data();
+ if (!helpers->Contains(aHelper)) {
+ continue;
+ }
+ helpers->RemoveElement(aHelper);
+ MOZ_ASSERT(!helpers->Contains(aHelper)); // Ensure there aren't duplicates.
+ if (helpers->IsEmpty()) {
+ iter.Remove();
+ }
+ }
+}
+
+} // namespace gmp
+} // namespace mozilla
+
+NS_IMPL_ADDREF(GMPCrashHelper)
+NS_IMPL_RELEASE_WITH_DESTROY(GMPCrashHelper, Destroy())
+
+void
+GMPCrashHelper::Destroy()
+{
+ if (NS_IsMainThread()) {
+ delete this;
+ } else {
+ // Don't addref, as then we'd end up releasing after the detele runs!
+ NS_DispatchToMainThread(mozilla::NewNonOwningRunnableMethod(this, &GMPCrashHelper::Destroy));
+ }
+}