Add m-esr52 at 52.6.0

1 files changed, 646 insertions, 0 deletions

diff --git a/dom/media/gmp/GMPChild.cpp b/dom/media/gmp/GMPChild.cpp
new file mode 100644
index 000000000..953dae3c6
--- /dev/null
+++ b/dom/media/gmp/GMPChild.cpp
@@ -0,0 +1,646 @@
+/* -*- 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 "GMPChild.h"
+#include "GMPContentChild.h"
+#include "GMPProcessChild.h"
+#include "GMPLoader.h"
+#include "GMPVideoDecoderChild.h"
+#include "GMPVideoEncoderChild.h"
+#include "GMPAudioDecoderChild.h"
+#include "GMPDecryptorChild.h"
+#include "GMPVideoHost.h"
+#include "nsDebugImpl.h"
+#include "nsIFile.h"
+#include "nsXULAppAPI.h"
+#include "gmp-video-decode.h"
+#include "gmp-video-encode.h"
+#include "GMPPlatform.h"
+#include "mozilla/dom/CrashReporterChild.h"
+#include "mozilla/ipc/ProcessChild.h"
+#include "GMPUtils.h"
+#include "prio.h"
+#include "base/task.h"
+#include "widevine-adapter/WidevineAdapter.h"
+
+using namespace mozilla::ipc;
+using mozilla::dom::CrashReporterChild;
+
+static const int MAX_VOUCHER_LENGTH = 500000;
+
+#ifdef XP_WIN
+#include <stdlib.h> // for _exit()
+#else
+#include <unistd.h> // for _exit()
+#endif
+
+#if defined(MOZ_GMP_SANDBOX)
+#if defined(XP_MACOSX)
+#include "mozilla/Sandbox.h"
+#endif
+#endif
+
+namespace mozilla {
+
+#undef LOG
+#undef LOGD
+
+extern LogModule* GetGMPLog();
+#define LOG(level, x, ...) MOZ_LOG(GetGMPLog(), (level), (x, ##__VA_ARGS__))
+#define LOGD(x, ...) LOG(mozilla::LogLevel::Debug, "GMPChild[pid=%d] " x, (int)base::GetCurrentProcId(), ##__VA_ARGS__)
+
+namespace gmp {
+
+GMPChild::GMPChild()
+  : mAsyncShutdown(nullptr)
+  , mGMPMessageLoop(MessageLoop::current())
+  , mGMPLoader(nullptr)
+{
+  LOGD("GMPChild ctor");
+  nsDebugImpl::SetMultiprocessMode("GMP");
+}
+
+GMPChild::~GMPChild()
+{
+  LOGD("GMPChild dtor");
+}
+
+static bool
+GetFileBase(const nsAString& aPluginPath,
+            nsCOMPtr<nsIFile>& aLibDirectory,
+            nsCOMPtr<nsIFile>& aFileBase,
+            nsAutoString& aBaseName)
+{
+  nsresult rv = NS_NewLocalFile(aPluginPath,
+                                true, getter_AddRefs(aFileBase));
+  if (NS_FAILED(rv)) {
+    return false;
+  }
+
+  if (NS_FAILED(aFileBase->Clone(getter_AddRefs(aLibDirectory)))) {
+    return false;
+  }
+
+  nsCOMPtr<nsIFile> parent;
+  rv = aFileBase->GetParent(getter_AddRefs(parent));
+  if (NS_FAILED(rv)) {
+    return false;
+  }
+
+  nsAutoString parentLeafName;
+  rv = parent->GetLeafName(parentLeafName);
+  if (NS_FAILED(rv)) {
+    return false;
+  }
+
+  aBaseName = Substring(parentLeafName,
+                        4,
+                        parentLeafName.Length() - 1);
+  return true;
+}
+
+static bool
+GetFileBase(const nsAString& aPluginPath,
+            nsCOMPtr<nsIFile>& aFileBase,
+            nsAutoString& aBaseName)
+{
+  nsCOMPtr<nsIFile> unusedLibDir;
+  return GetFileBase(aPluginPath, unusedLibDir, aFileBase, aBaseName);
+}
+
+static bool
+GetPluginFile(const nsAString& aPluginPath,
+              nsCOMPtr<nsIFile>& aLibDirectory,
+              nsCOMPtr<nsIFile>& aLibFile)
+{
+  nsAutoString baseName;
+  GetFileBase(aPluginPath, aLibDirectory, aLibFile, baseName);
+
+#if defined(XP_MACOSX)
+  nsAutoString binaryName = NS_LITERAL_STRING("lib") + baseName + NS_LITERAL_STRING(".dylib");
+#elif defined(OS_POSIX)
+  nsAutoString binaryName = NS_LITERAL_STRING("lib") + baseName + NS_LITERAL_STRING(".so");
+#elif defined(XP_WIN)
+  nsAutoString binaryName =                            baseName + NS_LITERAL_STRING(".dll");
+#else
+#error not defined
+#endif
+  aLibFile->AppendRelativePath(binaryName);
+  return true;
+}
+
+#if !defined(XP_MACOSX) || !defined(MOZ_GMP_SANDBOX)
+static bool
+GetPluginFile(const nsAString& aPluginPath,
+              nsCOMPtr<nsIFile>& aLibFile)
+{
+  nsCOMPtr<nsIFile> unusedlibDir;
+  return GetPluginFile(aPluginPath, unusedlibDir, aLibFile);
+}
+#endif
+
+#if defined(XP_MACOSX) && defined(MOZ_GMP_SANDBOX)
+static nsCString
+GetNativeTarget(nsIFile* aFile)
+{
+  bool isLink;
+  nsCString path;
+  aFile->IsSymlink(&isLink);
+  if (isLink) {
+    aFile->GetNativeTarget(path);
+  } else {
+    aFile->GetNativePath(path);
+  }
+  return path;
+}
+
+static bool
+GetPluginPaths(const nsAString& aPluginPath,
+               nsCString &aPluginDirectoryPath,
+               nsCString &aPluginFilePath)
+{
+  nsCOMPtr<nsIFile> libDirectory, libFile;
+  if (!GetPluginFile(aPluginPath, libDirectory, libFile)) {
+    return false;
+  }
+
+  // Mac sandbox rules expect paths to actual files and directories -- not
+  // soft links.
+  libDirectory->Normalize();
+  aPluginDirectoryPath = GetNativeTarget(libDirectory);
+
+  libFile->Normalize();
+  aPluginFilePath = GetNativeTarget(libFile);
+
+  return true;
+}
+
+static bool
+GetAppPaths(nsCString &aAppPath, nsCString &aAppBinaryPath)
+{
+  nsAutoCString appPath;
+  nsAutoCString appBinaryPath(
+    (CommandLine::ForCurrentProcess()->argv()[0]).c_str());
+
+  nsAutoCString::const_iterator start, end;
+  appBinaryPath.BeginReading(start);
+  appBinaryPath.EndReading(end);
+  if (RFindInReadable(NS_LITERAL_CSTRING(".app/Contents/MacOS/"), start, end)) {
+    end = start;
+    ++end; ++end; ++end; ++end;
+    appBinaryPath.BeginReading(start);
+    appPath.Assign(Substring(start, end));
+  } else {
+    return false;
+  }
+
+  nsCOMPtr<nsIFile> app, appBinary;
+  nsresult rv = NS_NewLocalFile(NS_ConvertUTF8toUTF16(appPath),
+                                true, getter_AddRefs(app));
+  if (NS_FAILED(rv)) {
+    return false;
+  }
+  rv = NS_NewLocalFile(NS_ConvertUTF8toUTF16(appBinaryPath),
+                       true, getter_AddRefs(appBinary));
+  if (NS_FAILED(rv)) {
+    return false;
+  }
+
+  // Mac sandbox rules expect paths to actual files and directories -- not
+  // soft links.
+  aAppPath = GetNativeTarget(app);
+  appBinaryPath = GetNativeTarget(appBinary);
+
+  return true;
+}
+
+bool
+GMPChild::SetMacSandboxInfo(MacSandboxPluginType aPluginType)
+{
+  if (!mGMPLoader) {
+    return false;
+  }
+  nsAutoCString pluginDirectoryPath, pluginFilePath;
+  if (!GetPluginPaths(mPluginPath, pluginDirectoryPath, pluginFilePath)) {
+    return false;
+  }
+  nsAutoCString appPath, appBinaryPath;
+  if (!GetAppPaths(appPath, appBinaryPath)) {
+    return false;
+  }
+
+  MacSandboxInfo info;
+  info.type = MacSandboxType_Plugin;
+  info.pluginInfo.type = aPluginType;
+  info.pluginInfo.pluginPath.assign(pluginDirectoryPath.get());
+  info.pluginInfo.pluginBinaryPath.assign(pluginFilePath.get());
+  info.appPath.assign(appPath.get());
+  info.appBinaryPath.assign(appBinaryPath.get());
+
+  mGMPLoader->SetSandboxInfo(&info);
+  return true;
+}
+#endif // XP_MACOSX && MOZ_GMP_SANDBOX
+
+bool
+GMPChild::Init(const nsAString& aPluginPath,
+               const nsAString& aVoucherPath,
+               base::ProcessId aParentPid,
+               MessageLoop* aIOLoop,
+               IPC::Channel* aChannel)
+{
+  LOGD("%s pluginPath=%s", __FUNCTION__, NS_ConvertUTF16toUTF8(aPluginPath).get());
+
+  if (NS_WARN_IF(!Open(aChannel, aParentPid, aIOLoop))) {
+    return false;
+  }
+
+#ifdef MOZ_CRASHREPORTER
+  SendPCrashReporterConstructor(CrashReporter::CurrentThreadId());
+#endif
+
+  mPluginPath = aPluginPath;
+  mSandboxVoucherPath = aVoucherPath;
+
+  return true;
+}
+
+bool
+GMPChild::RecvSetNodeId(const nsCString& aNodeId)
+{
+  LOGD("%s nodeId=%s", __FUNCTION__, aNodeId.Data());
+
+  // Store the per origin salt for the node id. Note: we do this in a
+  // separate message than RecvStartPlugin() so that the string is not
+  // sitting in a string on the IPC code's call stack.
+  mNodeId = aNodeId;
+  return true;
+}
+
+GMPErr
+GMPChild::GetAPI(const char* aAPIName,
+                 void* aHostAPI,
+                 void** aPluginAPI,
+                 uint32_t aDecryptorId)
+{
+  if (!mGMPLoader) {
+    return GMPGenericErr;
+  }
+  return mGMPLoader->GetAPI(aAPIName, aHostAPI, aPluginAPI, aDecryptorId);
+}
+
+bool
+GMPChild::RecvPreloadLibs(const nsCString& aLibs)
+{
+#ifdef XP_WIN
+  // Pre-load DLLs that need to be used by the EME plugin but that can't be
+  // loaded after the sandbox has started
+  // Items in this must be lowercase!
+  static const char* whitelist[] = {
+    "d3d9.dll", // Create an `IDirect3D9` to get adapter information
+    "dxva2.dll", // Get monitor information
+    "evr.dll", // MFGetStrideForBitmapInfoHeader
+    "mfh264dec.dll", // H.264 decoder (on Windows Vista)
+    "mfheaacdec.dll", // AAC decoder (on Windows Vista)
+    "mfplat.dll", // MFCreateSample, MFCreateAlignedMemoryBuffer, MFCreateMediaType
+    "msauddecmft.dll", // AAC decoder (on Windows 8)
+    "msmpeg2adec.dll", // AAC decoder (on Windows 7)
+    "msmpeg2vdec.dll", // H.264 decoder
+  };
+
+  nsTArray<nsCString> libs;
+  SplitAt(", ", aLibs, libs);
+  for (nsCString lib : libs) {
+    ToLowerCase(lib);
+    for (const char* whiteListedLib : whitelist) {
+      if (lib.EqualsASCII(whiteListedLib)) {
+        LoadLibraryA(lib.get());
+        break;
+      }
+    }
+  }
+#endif
+  return true;
+}
+
+bool
+GMPChild::GetUTF8LibPath(nsACString& aOutLibPath)
+{
+#if defined(XP_MACOSX) && defined(MOZ_GMP_SANDBOX)
+  nsAutoCString pluginDirectoryPath, pluginFilePath;
+  if (!GetPluginPaths(mPluginPath, pluginDirectoryPath, pluginFilePath)) {
+    MOZ_CRASH("Error scanning plugin path");
+  }
+  aOutLibPath.Assign(pluginFilePath);
+  return true;
+#else
+  nsCOMPtr<nsIFile> libFile;
+  if (!GetPluginFile(mPluginPath, libFile)) {
+    return false;
+  }
+
+  if (!FileExists(libFile)) {
+    NS_WARNING("Can't find GMP library file!");
+    return false;
+  }
+
+  nsAutoString path;
+  libFile->GetPath(path);
+  aOutLibPath = NS_ConvertUTF16toUTF8(path);
+
+  return true;
+#endif
+}
+
+bool
+GMPChild::AnswerStartPlugin(const nsString& aAdapter)
+{
+  LOGD("%s", __FUNCTION__);
+
+  if (!PreLoadPluginVoucher()) {
+    NS_WARNING("Plugin voucher failed to load!");
+    return false;
+  }
+  PreLoadSandboxVoucher();
+
+  nsCString libPath;
+  if (!GetUTF8LibPath(libPath)) {
+    return false;
+  }
+
+  auto platformAPI = new GMPPlatformAPI();
+  InitPlatformAPI(*platformAPI, this);
+
+  mGMPLoader = GMPProcessChild::GetGMPLoader();
+  if (!mGMPLoader) {
+    NS_WARNING("Failed to get GMPLoader");
+    delete platformAPI;
+    return false;
+  }
+
+  bool isWidevine = aAdapter.EqualsLiteral("widevine");
+#if defined(MOZ_GMP_SANDBOX) && defined(XP_MACOSX)
+  MacSandboxPluginType pluginType = MacSandboxPluginType_GMPlugin_Default;
+  if (isWidevine) {
+    pluginType = MacSandboxPluginType_GMPlugin_EME_Widevine;
+  }
+  if (!SetMacSandboxInfo(pluginType)) {
+    NS_WARNING("Failed to set Mac GMP sandbox info");
+    delete platformAPI;
+    return false;
+  }
+#endif
+
+  GMPAdapter* adapter = (isWidevine) ? new WidevineAdapter() : nullptr;
+  if (!mGMPLoader->Load(libPath.get(),
+                        libPath.Length(),
+                        mNodeId.BeginWriting(),
+                        mNodeId.Length(),
+                        platformAPI,
+                        adapter)) {
+    NS_WARNING("Failed to load GMP");
+    delete platformAPI;
+    return false;
+  }
+
+  void* sh = nullptr;
+  GMPAsyncShutdownHost* host = static_cast<GMPAsyncShutdownHost*>(this);
+  GMPErr err = GetAPI(GMP_API_ASYNC_SHUTDOWN, host, &sh);
+  if (err == GMPNoErr && sh) {
+    mAsyncShutdown = reinterpret_cast<GMPAsyncShutdown*>(sh);
+    SendAsyncShutdownRequired();
+  }
+
+  return true;
+}
+
+MessageLoop*
+GMPChild::GMPMessageLoop()
+{
+  return mGMPMessageLoop;
+}
+
+void
+GMPChild::ActorDestroy(ActorDestroyReason aWhy)
+{
+  LOGD("%s reason=%d", __FUNCTION__, aWhy);
+
+  for (uint32_t i = mGMPContentChildren.Length(); i > 0; i--) {
+    MOZ_ASSERT_IF(aWhy == NormalShutdown, !mGMPContentChildren[i - 1]->IsUsed());
+    mGMPContentChildren[i - 1]->Close();
+  }
+
+  if (mGMPLoader) {
+    mGMPLoader->Shutdown();
+  }
+  if (AbnormalShutdown == aWhy) {
+    NS_WARNING("Abnormal shutdown of GMP process!");
+    ProcessChild::QuickExit();
+  }
+
+  XRE_ShutdownChildProcess();
+}
+
+void
+GMPChild::ProcessingError(Result aCode, const char* aReason)
+{
+  switch (aCode) {
+    case MsgDropped:
+      _exit(0); // Don't trigger a crash report.
+    case MsgNotKnown:
+      MOZ_CRASH("aborting because of MsgNotKnown");
+    case MsgNotAllowed:
+      MOZ_CRASH("aborting because of MsgNotAllowed");
+    case MsgPayloadError:
+      MOZ_CRASH("aborting because of MsgPayloadError");
+    case MsgProcessingError:
+      MOZ_CRASH("aborting because of MsgProcessingError");
+    case MsgRouteError:
+      MOZ_CRASH("aborting because of MsgRouteError");
+    case MsgValueError:
+      MOZ_CRASH("aborting because of MsgValueError");
+    default:
+      MOZ_CRASH("not reached");
+  }
+}
+
+mozilla::dom::PCrashReporterChild*
+GMPChild::AllocPCrashReporterChild(const NativeThreadId& aThread)
+{
+  return new CrashReporterChild();
+}
+
+bool
+GMPChild::DeallocPCrashReporterChild(PCrashReporterChild* aCrashReporter)
+{
+  delete aCrashReporter;
+  return true;
+}
+
+PGMPTimerChild*
+GMPChild::AllocPGMPTimerChild()
+{
+  return new GMPTimerChild(this);
+}
+
+bool
+GMPChild::DeallocPGMPTimerChild(PGMPTimerChild* aActor)
+{
+  MOZ_ASSERT(mTimerChild == static_cast<GMPTimerChild*>(aActor));
+  mTimerChild = nullptr;
+  return true;
+}
+
+GMPTimerChild*
+GMPChild::GetGMPTimers()
+{
+  if (!mTimerChild) {
+    PGMPTimerChild* sc = SendPGMPTimerConstructor();
+    if (!sc) {
+      return nullptr;
+    }
+    mTimerChild = static_cast<GMPTimerChild*>(sc);
+  }
+  return mTimerChild;
+}
+
+PGMPStorageChild*
+GMPChild::AllocPGMPStorageChild()
+{
+  return new GMPStorageChild(this);
+}
+
+bool
+GMPChild::DeallocPGMPStorageChild(PGMPStorageChild* aActor)
+{
+  mStorage = nullptr;
+  return true;
+}
+
+GMPStorageChild*
+GMPChild::GetGMPStorage()
+{
+  if (!mStorage) {
+    PGMPStorageChild* sc = SendPGMPStorageConstructor();
+    if (!sc) {
+      return nullptr;
+    }
+    mStorage = static_cast<GMPStorageChild*>(sc);
+  }
+  return mStorage;
+}
+
+bool
+GMPChild::RecvCrashPluginNow()
+{
+  MOZ_CRASH();
+  return true;
+}
+
+bool
+GMPChild::RecvBeginAsyncShutdown()
+{
+  LOGD("%s AsyncShutdown=%d", __FUNCTION__, mAsyncShutdown!=nullptr);
+
+  MOZ_ASSERT(mGMPMessageLoop == MessageLoop::current());
+  if (mAsyncShutdown) {
+    mAsyncShutdown->BeginShutdown();
+  } else {
+    ShutdownComplete();
+  }
+  return true;
+}
+
+bool
+GMPChild::RecvCloseActive()
+{
+  for (uint32_t i = mGMPContentChildren.Length(); i > 0; i--) {
+    mGMPContentChildren[i - 1]->CloseActive();
+  }
+  return true;
+}
+
+void
+GMPChild::ShutdownComplete()
+{
+  LOGD("%s", __FUNCTION__);
+  MOZ_ASSERT(mGMPMessageLoop == MessageLoop::current());
+  mAsyncShutdown = nullptr;
+  SendAsyncShutdownComplete();
+}
+
+static void
+GetPluginVoucherFile(const nsAString& aPluginPath,
+                     nsCOMPtr<nsIFile>& aOutVoucherFile)
+{
+  nsAutoString baseName;
+  GetFileBase(aPluginPath, aOutVoucherFile, baseName);
+  nsAutoString infoFileName = baseName + NS_LITERAL_STRING(".voucher");
+  aOutVoucherFile->AppendRelativePath(infoFileName);
+}
+
+bool
+GMPChild::PreLoadPluginVoucher()
+{
+  nsCOMPtr<nsIFile> voucherFile;
+  GetPluginVoucherFile(mPluginPath, voucherFile);
+  if (!FileExists(voucherFile)) {
+    // Assume missing file is not fatal; that would break OpenH264.
+    return true;
+  }
+  return ReadIntoArray(voucherFile, mPluginVoucher, MAX_VOUCHER_LENGTH);
+}
+
+void
+GMPChild::PreLoadSandboxVoucher()
+{
+  nsCOMPtr<nsIFile> f;
+  nsresult rv = NS_NewLocalFile(mSandboxVoucherPath, true, getter_AddRefs(f));
+  if (NS_FAILED(rv)) {
+    NS_WARNING("Can't create nsIFile for sandbox voucher");
+    return;
+  }
+  if (!FileExists(f)) {
+    // Assume missing file is not fatal; that would break OpenH264.
+    return;
+  }
+
+  if (!ReadIntoArray(f, mSandboxVoucher, MAX_VOUCHER_LENGTH)) {
+    NS_WARNING("Failed to read sandbox voucher");
+  }
+}
+
+PGMPContentChild*
+GMPChild::AllocPGMPContentChild(Transport* aTransport,
+                                ProcessId aOtherPid)
+{
+  GMPContentChild* child =
+    mGMPContentChildren.AppendElement(new GMPContentChild(this))->get();
+  child->Open(aTransport, aOtherPid, XRE_GetIOMessageLoop(), ipc::ChildSide);
+
+  return child;
+}
+
+void
+GMPChild::GMPContentChildActorDestroy(GMPContentChild* aGMPContentChild)
+{
+  for (uint32_t i = mGMPContentChildren.Length(); i > 0; i--) {
+    UniquePtr<GMPContentChild>& toDestroy = mGMPContentChildren[i - 1];
+    if (toDestroy.get() == aGMPContentChild) {
+      SendPGMPContentChildDestroyed();
+      RefPtr<DeleteTask<GMPContentChild>> task =
+        new DeleteTask<GMPContentChild>(toDestroy.release());
+      MessageLoop::current()->PostTask(task.forget());
+      mGMPContentChildren.RemoveElementAt(i - 1);
+      break;
+    }
+  }
+}
+
+} // namespace gmp
+} // namespace mozilla
+
+#undef LOG
+#undef LOGD