Macintosh-SW/tenfourfox
1
0
Fork 0
mirror of https://github.com/classilla/tenfourfox.git synced 2024-06-09 11:29:39 +00:00
Code Issues Projects Releases Wiki Activity
master
tenfourfox/dom/media/eme/MediaKeySystemAccess.cpp
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

600 lines
20 KiB
C++
Raw Permalink Blame History

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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/dom/ContentChild.h"
#include "mozilla/dom/MediaKeySystemAccess.h"
#include "mozilla/dom/MediaKeySystemAccessBinding.h"
#include "mozilla/Preferences.h"
#include "nsContentTypeParser.h"
#ifdef MOZ_FMP4
#include "MP4Decoder.h"
#endif
#ifdef XP_WIN
#include "mozilla/WindowsVersion.h"
#include "WMFDecoderModule.h"
#endif
#ifdef XP_MACOSX
#include "nsCocoaFeatures.h"
#endif
#include "nsContentCID.h"
#include "nsServiceManagerUtils.h"
#include "mozIGeckoMediaPluginService.h"
#include "VideoUtils.h"
#include "mozilla/Services.h"
#include "nsIObserverService.h"
#include "mozilla/EMEUtils.h"
#include "GMPUtils.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsDirectoryServiceUtils.h"
#include "nsDirectoryServiceDefs.h"
#include "nsXULAppAPI.h"
#include "gmp-audio-decode.h"
#include "gmp-video-decode.h"
#ifdef XP_WIN
#include "WMFDecoderModule.h"
#endif
#if defined(XP_WIN) || defined(XP_MACOSX)
#define PRIMETIME_EME_SUPPORTED 1
#endif
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(MediaKeySystemAccess,
mParent)
NS_IMPL_CYCLE_COLLECTING_ADDREF(MediaKeySystemAccess)
NS_IMPL_CYCLE_COLLECTING_RELEASE(MediaKeySystemAccess)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MediaKeySystemAccess)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
MediaKeySystemAccess::MediaKeySystemAccess(nsPIDOMWindow* aParent,
const nsAString& aKeySystem,
const nsAString& aCDMVersion,
const MediaKeySystemConfiguration& aConfig)
: mParent(aParent)
, mKeySystem(aKeySystem)
, mCDMVersion(aCDMVersion)
, mConfig(aConfig)
{
}
MediaKeySystemAccess::~MediaKeySystemAccess()
{
}
JSObject*
MediaKeySystemAccess::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return MediaKeySystemAccessBinding::Wrap(aCx, this, aGivenProto);
}
nsPIDOMWindow*
MediaKeySystemAccess::GetParentObject() const
{
return mParent;
}
void
MediaKeySystemAccess::GetKeySystem(nsString& aOutKeySystem) const
{
aOutKeySystem.Assign(mKeySystem);
}
void
MediaKeySystemAccess::GetConfiguration(MediaKeySystemConfiguration& aConfig)
{
aConfig = mConfig;
}
already_AddRefed<Promise>
MediaKeySystemAccess::CreateMediaKeys(ErrorResult& aRv)
{
RefPtr<MediaKeys> keys(new MediaKeys(mParent, mKeySystem, mCDMVersion));
return keys->Init(aRv);
}
static bool
HaveGMPFor(mozIGeckoMediaPluginService* aGMPService,
const nsCString& aKeySystem,
const nsCString& aAPI,
const nsCString& aTag = EmptyCString())
{
nsTArray<nsCString> tags;
tags.AppendElement(aKeySystem);
if (!aTag.IsEmpty()) {
tags.AppendElement(aTag);
}
bool hasPlugin = false;
if (NS_FAILED(aGMPService->HasPluginForAPI(aAPI,
&tags,
&hasPlugin))) {
return false;
}
return hasPlugin;
}
#ifdef XP_WIN
static bool
AdobePluginFileExists(const nsACString& aVersionStr,
const nsAString& aFilename)
{
MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Default);
nsCOMPtr<nsIFile> path;
nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(path));
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
rv = path->Append(NS_LITERAL_STRING("gmp-eme-adobe"));
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
rv = path->AppendNative(aVersionStr);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
rv = path->Append(aFilename);
if (NS_WARN_IF(NS_FAILED(rv))) {
return false;
}
bool exists = false;
return NS_SUCCEEDED(path->Exists(&exists)) && exists;
}
static bool
AdobePluginDLLExists(const nsACString& aVersionStr)
{
return AdobePluginFileExists(aVersionStr, NS_LITERAL_STRING("eme-adobe.dll"));
}
static bool
AdobePluginVoucherExists(const nsACString& aVersionStr)
{
return AdobePluginFileExists(aVersionStr, NS_LITERAL_STRING("eme-adobe.voucher"));
}
#endif
/* static */ bool
MediaKeySystemAccess::IsGMPPresentOnDisk(const nsAString& aKeySystem,
const nsACString& aVersion,
nsACString& aOutMessage)
{
MOZ_ASSERT(NS_IsMainThread());
if (XRE_GetProcessType() != GeckoProcessType_Default) {
// We need to be able to access the filesystem, so call this in the
// main process via ContentChild.
ContentChild* contentChild = ContentChild::GetSingleton();
if (NS_WARN_IF(!contentChild)) {
return false;
}
nsCString message;
bool result = false;
bool ok = contentChild->SendIsGMPPresentOnDisk(nsString(aKeySystem), nsCString(aVersion),
&result, &message);
aOutMessage = message;
return ok && result;
}
bool isPresent = true;
#if XP_WIN
if (aKeySystem.EqualsLiteral("com.adobe.primetime")) {
if (!AdobePluginDLLExists(aVersion)) {
NS_WARNING("Adobe EME plugin disappeared from disk!");
aOutMessage = NS_LITERAL_CSTRING("Adobe DLL was expected to be on disk but was not");
isPresent = false;
}
if (!AdobePluginVoucherExists(aVersion)) {
NS_WARNING("Adobe EME voucher disappeared from disk!");
aOutMessage = NS_LITERAL_CSTRING("Adobe plugin voucher was expected to be on disk but was not");
isPresent = false;
}
if (!isPresent) {
// Reset the prefs that Firefox's GMP downloader sets, so that
// Firefox will try to download the plugin next time the updater runs.
Preferences::ClearUser("media.gmp-eme-adobe.lastUpdate");
Preferences::ClearUser("media.gmp-eme-adobe.version");
} else if (!EMEVoucherFileExists()) {
// Gecko doesn't have a voucher file for the plugin-container.
// Adobe EME isn't going to work, so don't advertise that it will.
aOutMessage = NS_LITERAL_CSTRING("Plugin-container voucher not present");
isPresent = false;
}
}
#endif
return isPresent;
}
static MediaKeySystemStatus
EnsureMinCDMVersion(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
int32_t aMinCdmVersion,
nsACString& aOutMessage,
nsACString& aOutCdmVersion)
{
nsTArray<nsCString> tags;
tags.AppendElement(NS_ConvertUTF16toUTF8(aKeySystem));
bool hasPlugin;
nsAutoCString versionStr;
if (NS_FAILED(aGMPService->GetPluginVersionForAPI(NS_LITERAL_CSTRING(GMP_API_DECRYPTOR),
&tags,
&hasPlugin,
versionStr))) {
aOutMessage = NS_LITERAL_CSTRING("GetPluginVersionForAPI failed");
return MediaKeySystemStatus::Error;
}
aOutCdmVersion = versionStr;
if (!hasPlugin) {
aOutMessage = NS_LITERAL_CSTRING("CDM is not installed");
return MediaKeySystemStatus::Cdm_not_installed;
}
if (!MediaKeySystemAccess::IsGMPPresentOnDisk(aKeySystem, versionStr, aOutMessage)) {
return MediaKeySystemStatus::Cdm_not_installed;
}
nsresult rv;
int32_t version = versionStr.ToInteger(&rv);
if (aMinCdmVersion != NO_CDM_VERSION &&
(NS_FAILED(rv) || version < 0 || aMinCdmVersion > version)) {
aOutMessage = NS_LITERAL_CSTRING("Installed CDM version insufficient");
return MediaKeySystemStatus::Cdm_insufficient_version;
}
return MediaKeySystemStatus::Available;
}
/* static */
MediaKeySystemStatus
MediaKeySystemAccess::GetKeySystemStatus(const nsAString& aKeySystem,
int32_t aMinCdmVersion,
nsACString& aOutMessage,
nsACString& aOutCdmVersion)
{
MOZ_ASSERT(Preferences::GetBool("media.eme.enabled", false));
nsCOMPtr<mozIGeckoMediaPluginService> mps =
do_GetService("@mozilla.org/gecko-media-plugin-service;1");
if (NS_WARN_IF(!mps)) {
aOutMessage = NS_LITERAL_CSTRING("Failed to get GMP service");
return MediaKeySystemStatus::Error;
}
if (aKeySystem.EqualsLiteral("org.w3.clearkey")) {
if (!Preferences::GetBool("media.eme.clearkey.enabled", true)) {
aOutMessage = NS_LITERAL_CSTRING("ClearKey was disabled");
return MediaKeySystemStatus::Cdm_disabled;
}
return EnsureMinCDMVersion(mps, aKeySystem, aMinCdmVersion, aOutMessage, aOutCdmVersion);
}
#ifdef PRIMETIME_EME_SUPPORTED
if (aKeySystem.EqualsLiteral("com.adobe.primetime")) {
if (!Preferences::GetBool("media.gmp-eme-adobe.enabled", false)) {
aOutMessage = NS_LITERAL_CSTRING("Adobe EME disabled");
return MediaKeySystemStatus::Cdm_disabled;
}
#ifdef XP_WIN
// Win Vista and later only.
if (!IsVistaOrLater()) {
aOutMessage = NS_LITERAL_CSTRING("Minimum Windows version not met for Adobe EME");
return MediaKeySystemStatus::Cdm_not_supported;
}
#endif
#ifdef XP_MACOSX
if (!nsCocoaFeatures::OnLionOrLater()) {
aOutMessage = NS_LITERAL_CSTRING("Minimum MacOSX version not met for Adobe EME");
return MediaKeySystemStatus::Cdm_not_supported;
}
#endif
return EnsureMinCDMVersion(mps, aKeySystem, aMinCdmVersion, aOutMessage, aOutCdmVersion);
}
#endif
return MediaKeySystemStatus::Cdm_not_supported;
}
static bool
GMPDecryptsAndDecodesAAC(mozIGeckoMediaPluginService* aGMPS,
const nsAString& aKeySystem)
{
MOZ_ASSERT(HaveGMPFor(aGMPS,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_DECRYPTOR)));
return HaveGMPFor(aGMPS,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_AUDIO_DECODER),
NS_LITERAL_CSTRING("aac"))
#ifdef XP_WIN
// Clearkey on Windows advertises that it can decode in its GMP info
// file, but uses Windows Media Foundation to decode. That's not present
// on Windows XP, and on some Vista, Windows N, and KN variants without
// certain services packs. So for ClearKey we must check that WMF will
// work.
&& (!aKeySystem.EqualsLiteral("org.w3.clearkey") || WMFDecoderModule::HasAAC())
#endif
;
}
static bool
GMPDecryptsAndDecodesH264(mozIGeckoMediaPluginService* aGMPS,
const nsAString& aKeySystem)
{
MOZ_ASSERT(HaveGMPFor(aGMPS,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_DECRYPTOR)));
return HaveGMPFor(aGMPS,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_VIDEO_DECODER),
NS_LITERAL_CSTRING("h264"))
#ifdef XP_WIN
// Clearkey on Windows advertises that it can decode in its GMP info
// file, but uses Windows Media Foundation to decode. That's not present
// on Windows XP, and on some Vista, Windows N, and KN variants without
// certain services packs. So for ClearKey we must check that WMF will
// work.
&& (!aKeySystem.EqualsLiteral("org.w3.clearkey") || WMFDecoderModule::HasH264())
#endif
;
}
// If this keysystem's CDM explicitly says it doesn't support decoding,
// that means it's OK with passing the decrypted samples back to Gecko
// for decoding. Note we special case Clearkey on Windows, where we need
// to check for whether WMF is usable because the CDM uses that
// to decode.
static bool
GMPDecryptsAndGeckoDecodesH264(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
const nsAString& aContentType)
{
MOZ_ASSERT(HaveGMPFor(aGMPService,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_DECRYPTOR)));
MOZ_ASSERT(IsH264ContentType(aContentType));
return
(!HaveGMPFor(aGMPService,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_VIDEO_DECODER),
NS_LITERAL_CSTRING("h264"))
#ifdef XP_WIN
// Clearkey on Windows advertises that it can decode in its GMP info
// file, but uses Windows Media Foundation to decode. That's not present
// on Windows XP, and on some Vista, Windows N, and KN variants without
// certain services packs. So don't try to use gmp-clearkey for decoding
// if we don't have a decoder here.
|| (aKeySystem.EqualsLiteral("org.w3.clearkey") && !WMFDecoderModule::HasH264())
#endif
) && MP4Decoder::CanHandleMediaType(aContentType);
}
static bool
GMPDecryptsAndGeckoDecodesAAC(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
const nsAString& aContentType)
{
MOZ_ASSERT(HaveGMPFor(aGMPService,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_DECRYPTOR)));
MOZ_ASSERT(IsAACContentType(aContentType));
return
(!HaveGMPFor(aGMPService,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_AUDIO_DECODER),
NS_LITERAL_CSTRING("aac"))
#ifdef XP_WIN
// Clearkey on Windows advertises that it can decode in its GMP info
// file, but uses Windows Media Foundation to decode. That's not present
// on Windows XP, and on some Vista, Windows N, and KN variants without
// certain services packs. So don't try to use gmp-clearkey for decoding
// if we don't have a decoder here.
|| (aKeySystem.EqualsLiteral("org.w3.clearkey") && !WMFDecoderModule::HasAAC())
#endif
) && MP4Decoder::CanHandleMediaType(aContentType);
}
static bool
IsSupportedAudio(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
const nsAString& aAudioType)
{
return IsAACContentType(aAudioType) &&
(GMPDecryptsAndDecodesAAC(aGMPService, aKeySystem) ||
GMPDecryptsAndGeckoDecodesAAC(aGMPService, aKeySystem, aAudioType));
}
static bool
IsSupportedVideo(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
const nsAString& aVideoType)
{
return IsH264ContentType(aVideoType) &&
(GMPDecryptsAndDecodesH264(aGMPService, aKeySystem) ||
GMPDecryptsAndGeckoDecodesH264(aGMPService, aKeySystem, aVideoType));
}
static bool
IsSupported(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
const MediaKeySystemConfiguration& aConfig)
{
if (aConfig.mInitDataType.IsEmpty() &&
aConfig.mAudioType.IsEmpty() &&
aConfig.mVideoType.IsEmpty()) {
// Not an old-style request.
return false;
}
// Backwards compatibility with legacy MediaKeySystemConfiguration method.
if (!aConfig.mInitDataType.IsEmpty() &&
!aConfig.mInitDataType.EqualsLiteral("cenc")) {
return false;
}
if (!aConfig.mAudioType.IsEmpty() &&
!IsSupportedAudio(aGMPService, aKeySystem, aConfig.mAudioType)) {
return false;
}
if (!aConfig.mVideoType.IsEmpty() &&
!IsSupportedVideo(aGMPService, aKeySystem, aConfig.mVideoType)) {
return false;
}
return true;
}
static bool
GetSupportedConfig(mozIGeckoMediaPluginService* aGMPService,
const nsAString& aKeySystem,
const MediaKeySystemConfiguration& aCandidate,
MediaKeySystemConfiguration& aOutConfig)
{
MediaKeySystemConfiguration config;
config.mLabel = aCandidate.mLabel;
if (aCandidate.mInitDataTypes.WasPassed()) {
nsTArray<nsString> initDataTypes;
for (const nsString& candidate : aCandidate.mInitDataTypes.Value()) {
// All supported keySystems can handle "cenc" initDataType.
// ClearKey also supports "keyids" and "webm" initDataTypes.
if (candidate.EqualsLiteral("cenc")) {
initDataTypes.AppendElement(candidate);
} else if ((candidate.EqualsLiteral("keyids") ||
candidate.EqualsLiteral("webm)")) &&
aKeySystem.EqualsLiteral("org.w3.clearkey")) {
initDataTypes.AppendElement(candidate);
}
}
if (initDataTypes.IsEmpty()) {
return false;
}
config.mInitDataTypes.Construct();
config.mInitDataTypes.Value().Assign(initDataTypes);
}
if (aCandidate.mAudioCapabilities.WasPassed()) {
nsTArray<MediaKeySystemMediaCapability> caps;
for (const MediaKeySystemMediaCapability& cap : aCandidate.mAudioCapabilities.Value()) {
if (IsSupportedAudio(aGMPService, aKeySystem, cap.mContentType)) {
caps.AppendElement(cap);
}
}
if (caps.IsEmpty()) {
return false;
}
config.mAudioCapabilities.Construct();
config.mAudioCapabilities.Value().Assign(caps);
}
if (aCandidate.mVideoCapabilities.WasPassed()) {
nsTArray<MediaKeySystemMediaCapability> caps;
for (const MediaKeySystemMediaCapability& cap : aCandidate.mVideoCapabilities.Value()) {
if (IsSupportedVideo(aGMPService, aKeySystem, cap.mContentType)) {
caps.AppendElement(cap);
}
}
if (caps.IsEmpty()) {
return false;
}
config.mVideoCapabilities.Construct();
config.mVideoCapabilities.Value().Assign(caps);
}
aOutConfig = config;
return true;
}
// Backwards compatibility with legacy requestMediaKeySystemAccess with fields
// from old MediaKeySystemOptions dictionary.
/* static */
bool
MediaKeySystemAccess::IsSupported(const nsAString& aKeySystem,
const Sequence<MediaKeySystemConfiguration>& aConfigs)
{
nsCOMPtr<mozIGeckoMediaPluginService> mps =
do_GetService("@mozilla.org/gecko-media-plugin-service;1");
if (NS_WARN_IF(!mps)) {
return false;
}
if (!HaveGMPFor(mps,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_DECRYPTOR))) {
return false;
}
for (const MediaKeySystemConfiguration& config : aConfigs) {
if (mozilla::dom::IsSupported(mps, aKeySystem, config)) {
return true;
}
}
return false;
}
/* static */
bool
MediaKeySystemAccess::GetSupportedConfig(const nsAString& aKeySystem,
const Sequence<MediaKeySystemConfiguration>& aConfigs,
MediaKeySystemConfiguration& aOutConfig)
{
nsCOMPtr<mozIGeckoMediaPluginService> mps =
do_GetService("@mozilla.org/gecko-media-plugin-service;1");
if (NS_WARN_IF(!mps)) {
return false;
}
if (!HaveGMPFor(mps,
NS_ConvertUTF16toUTF8(aKeySystem),
NS_LITERAL_CSTRING(GMP_API_DECRYPTOR))) {
return false;
}
for (const MediaKeySystemConfiguration& config : aConfigs) {
if (mozilla::dom::GetSupportedConfig(mps, aKeySystem, config, aOutConfig)) {
return true;
}
}
return false;
}
/* static */
void
MediaKeySystemAccess::NotifyObservers(nsIDOMWindow* aWindow,
const nsAString& aKeySystem,
MediaKeySystemStatus aStatus)
{
if (aStatus == MediaKeySystemStatus::Cdm_not_supported) {
// Ignore, since there's nothing the user can do to rectify this, and we
// don't want the prompt to confuse them.
// TODO: Remove places that call with this entirely.
return;
}
RequestMediaKeySystemAccessNotification data;
data.mKeySystem = aKeySystem;
data.mStatus = aStatus;
nsAutoString json;
data.ToJSON(json);
EME_LOG("MediaKeySystemAccess::NotifyObservers() %s", NS_ConvertUTF16toUTF8(json).get());
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (obs) {
obs->NotifyObservers(aWindow, "mediakeys-request", json.get());
}
}
} // namespace dom
} // namespace mozilla
Reference in New Issue View Git Blame Copy Permalink