mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
364 lines
11 KiB
C++
364 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/MediaKeySystemAccess.h"
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#include "mozilla/dom/MediaKeySystemAccessBinding.h"
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#include "mozilla/Preferences.h"
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#include "nsContentTypeParser.h"
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#ifdef MOZ_FMP4
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#include "MP4Decoder.h"
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#endif
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#ifdef XP_WIN
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#include "mozilla/WindowsVersion.h"
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#include "WMFDecoderModule.h"
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#endif
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#include "nsContentCID.h"
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#include "nsServiceManagerUtils.h"
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#include "mozIGeckoMediaPluginService.h"
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#include "VideoUtils.h"
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#include "mozilla/Services.h"
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#include "nsIObserverService.h"
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#include "mozilla/EMEUtils.h"
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#include "GMPUtils.h"
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#include "nsAppDirectoryServiceDefs.h"
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#include "nsDirectoryServiceUtils.h"
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#include "nsDirectoryServiceDefs.h"
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#include "nsXULAppAPI.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(MediaKeySystemAccess,
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mParent)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(MediaKeySystemAccess)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(MediaKeySystemAccess)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MediaKeySystemAccess)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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MediaKeySystemAccess::MediaKeySystemAccess(nsPIDOMWindow* aParent,
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const nsAString& aKeySystem)
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: mParent(aParent)
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, mKeySystem(aKeySystem)
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{
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}
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MediaKeySystemAccess::~MediaKeySystemAccess()
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{
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}
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JSObject*
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MediaKeySystemAccess::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return MediaKeySystemAccessBinding::Wrap(aCx, this, aGivenProto);
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}
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nsPIDOMWindow*
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MediaKeySystemAccess::GetParentObject() const
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{
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return mParent;
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}
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void
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MediaKeySystemAccess::GetKeySystem(nsString& aRetVal) const
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{
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aRetVal = mKeySystem;
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}
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already_AddRefed<Promise>
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MediaKeySystemAccess::CreateMediaKeys(ErrorResult& aRv)
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{
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nsRefPtr<MediaKeys> keys(new MediaKeys(mParent, mKeySystem));
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return keys->Init(aRv);
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}
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static bool
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HaveGMPFor(mozIGeckoMediaPluginService* aGMPService,
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const nsCString& aKeySystem,
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const nsCString& aAPI,
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const nsCString& aTag = EmptyCString())
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{
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nsTArray<nsCString> tags;
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tags.AppendElement(aKeySystem);
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if (!aTag.IsEmpty()) {
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tags.AppendElement(aTag);
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}
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bool hasPlugin = false;
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if (NS_FAILED(aGMPService->HasPluginForAPI(aAPI,
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&tags,
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&hasPlugin))) {
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return false;
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}
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return hasPlugin;
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}
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#ifdef XP_WIN
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static bool
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AdobePluginFileExists(const nsACString& aVersionStr,
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const nsAString& aFilename)
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{
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if (XRE_GetProcessType() != GeckoProcessType_Default) {
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NS_WARNING("AdobePluginFileExists() lying because it doesn't work with e10s");
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return true;
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}
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nsCOMPtr<nsIFile> path;
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nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(path));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return false;
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}
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rv = path->Append(NS_LITERAL_STRING("gmp-eme-adobe"));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return false;
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}
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rv = path->AppendNative(aVersionStr);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return false;
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}
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rv = path->Append(aFilename);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return false;
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}
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bool exists = false;
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return NS_SUCCEEDED(path->Exists(&exists)) && exists;
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}
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static bool
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AdobePluginDLLExists(const nsACString& aVersionStr)
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{
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return AdobePluginFileExists(aVersionStr, NS_LITERAL_STRING("eme-adobe.dll"));
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}
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static bool
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AdobePluginVoucherExists(const nsACString& aVersionStr)
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{
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return AdobePluginFileExists(aVersionStr, NS_LITERAL_STRING("eme-adobe.voucher"));
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}
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#endif
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static MediaKeySystemStatus
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EnsureMinCDMVersion(mozIGeckoMediaPluginService* aGMPService,
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const nsAString& aKeySystem,
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int32_t aMinCdmVersion,
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nsACString& aOutMessage)
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{
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nsTArray<nsCString> tags;
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tags.AppendElement(NS_ConvertUTF16toUTF8(aKeySystem));
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bool hasPlugin;
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nsAutoCString versionStr;
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if (NS_FAILED(aGMPService->GetPluginVersionForAPI(NS_LITERAL_CSTRING(GMP_API_DECRYPTOR),
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&tags,
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&hasPlugin,
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versionStr))) {
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aOutMessage = NS_LITERAL_CSTRING("GetPluginVersionForAPI failed");
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return MediaKeySystemStatus::Error;
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}
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if (!hasPlugin) {
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aOutMessage = NS_LITERAL_CSTRING("CDM is not installed");
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return MediaKeySystemStatus::Cdm_not_installed;
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}
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#ifdef XP_WIN
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if (aKeySystem.EqualsLiteral("com.adobe.access") ||
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aKeySystem.EqualsLiteral("com.adobe.primetime")) {
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// Verify that anti-virus hasn't "helpfully" deleted the Adobe GMP DLL,
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// as we suspect may happen (Bug 1160382).
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bool somethingMissing = false;
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if (!AdobePluginDLLExists(versionStr)) {
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aOutMessage = NS_LITERAL_CSTRING("Adobe DLL was expected to be on disk but was not");
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somethingMissing = true;
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}
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if (!AdobePluginVoucherExists(versionStr)) {
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aOutMessage = NS_LITERAL_CSTRING("Adobe plugin voucher was expected to be on disk but was not");
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somethingMissing = true;
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}
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if (somethingMissing) {
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NS_WARNING("Adobe EME plugin or voucher disappeared from disk!");
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// Reset the prefs that Firefox's GMP downloader sets, so that
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// Firefox will try to download the plugin next time the updater runs.
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Preferences::ClearUser("media.gmp-eme-adobe.lastUpdate");
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Preferences::ClearUser("media.gmp-eme-adobe.version");
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return MediaKeySystemStatus::Cdm_not_installed;
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}
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}
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#endif
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nsresult rv;
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int32_t version = versionStr.ToInteger(&rv);
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if (aMinCdmVersion != NO_CDM_VERSION &&
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(NS_FAILED(rv) || version < 0 || aMinCdmVersion > version)) {
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aOutMessage = NS_LITERAL_CSTRING("Installed CDM version insufficient");
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return MediaKeySystemStatus::Cdm_insufficient_version;
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}
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return MediaKeySystemStatus::Available;
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}
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/* static */
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MediaKeySystemStatus
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MediaKeySystemAccess::GetKeySystemStatus(const nsAString& aKeySystem,
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int32_t aMinCdmVersion,
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nsACString& aOutMessage)
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{
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MOZ_ASSERT(Preferences::GetBool("media.eme.enabled", false));
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nsCOMPtr<mozIGeckoMediaPluginService> mps =
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do_GetService("@mozilla.org/gecko-media-plugin-service;1");
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if (NS_WARN_IF(!mps)) {
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aOutMessage = NS_LITERAL_CSTRING("Failed to get GMP service");
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return MediaKeySystemStatus::Error;
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}
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if (aKeySystem.EqualsLiteral("org.w3.clearkey")) {
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if (!Preferences::GetBool("media.eme.clearkey.enabled", true)) {
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aOutMessage = NS_LITERAL_CSTRING("ClearKey was disabled");
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return MediaKeySystemStatus::Cdm_disabled;
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}
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return EnsureMinCDMVersion(mps, aKeySystem, aMinCdmVersion, aOutMessage);
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}
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#ifdef XP_WIN
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if ((aKeySystem.EqualsLiteral("com.adobe.access") ||
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aKeySystem.EqualsLiteral("com.adobe.primetime"))) {
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// Win Vista and later only.
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if (!IsVistaOrLater()) {
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aOutMessage = NS_LITERAL_CSTRING("Minimum Windows version not met for Adobe EME");
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return MediaKeySystemStatus::Cdm_not_supported;
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}
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if (!Preferences::GetBool("media.gmp-eme-adobe.enabled", false)) {
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aOutMessage = NS_LITERAL_CSTRING("Adobe EME disabled");
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return MediaKeySystemStatus::Cdm_disabled;
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}
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if (!EMEVoucherFileExists()) {
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// The system doesn't have the codecs that Adobe EME relies
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// on installed, or doesn't have a voucher for the plugin-container.
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// Adobe EME isn't going to work, so don't advertise that it will.
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aOutMessage = NS_LITERAL_CSTRING("Plugin-container voucher not present");
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return MediaKeySystemStatus::Cdm_not_supported;
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}
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return EnsureMinCDMVersion(mps, aKeySystem, aMinCdmVersion, aOutMessage);
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}
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#endif
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return MediaKeySystemStatus::Cdm_not_supported;
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}
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static bool
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IsPlayableWithGMP(mozIGeckoMediaPluginService* aGMPS,
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const nsAString& aKeySystem,
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const nsAString& aContentType)
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{
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#ifdef MOZ_FMP4
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nsContentTypeParser parser(aContentType);
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nsAutoString mimeType;
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nsresult rv = parser.GetType(mimeType);
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if (NS_FAILED(rv)) {
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return false;
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}
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if (!mimeType.EqualsLiteral("audio/mp4") &&
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!mimeType.EqualsLiteral("audio/x-m4a") &&
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!mimeType.EqualsLiteral("video/mp4")) {
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return false;
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}
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nsAutoString codecs;
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parser.GetParameter("codecs", codecs);
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NS_ConvertUTF16toUTF8 mimeTypeUTF8(mimeType);
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bool hasAAC = false;
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bool hasH264 = false;
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bool hasMP3 = false;
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if (!MP4Decoder::CanHandleMediaType(mimeTypeUTF8,
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codecs,
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hasAAC,
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hasH264,
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hasMP3) ||
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hasMP3) {
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return false;
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}
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return (!hasAAC ||
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!HaveGMPFor(aGMPS,
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NS_ConvertUTF16toUTF8(aKeySystem),
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NS_LITERAL_CSTRING(GMP_API_DECRYPTOR),
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NS_LITERAL_CSTRING("aac"))) &&
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(!hasH264 ||
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!HaveGMPFor(aGMPS,
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NS_ConvertUTF16toUTF8(aKeySystem),
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NS_LITERAL_CSTRING(GMP_API_DECRYPTOR),
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NS_LITERAL_CSTRING("h264")));
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#else
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return false;
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#endif
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}
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/* static */
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bool
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MediaKeySystemAccess::IsSupported(const nsAString& aKeySystem,
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const Sequence<MediaKeySystemOptions>& aOptions)
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{
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nsCOMPtr<mozIGeckoMediaPluginService> mps =
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do_GetService("@mozilla.org/gecko-media-plugin-service;1");
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if (NS_WARN_IF(!mps)) {
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return false;
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}
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for (size_t i = 0; i < aOptions.Length(); i++) {
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const MediaKeySystemOptions& options = aOptions[i];
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if (!options.mInitDataType.EqualsLiteral("cenc")) {
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continue;
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}
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if (!options.mAudioCapability.IsEmpty() ||
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!options.mVideoCapability.IsEmpty()) {
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// Don't support any capabilites until we know we have a CDM with
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// capabilities...
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continue;
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}
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if (!options.mAudioType.IsEmpty() &&
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!IsPlayableWithGMP(mps, aKeySystem, options.mAudioType)) {
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continue;
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}
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if (!options.mVideoType.IsEmpty() &&
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!IsPlayableWithGMP(mps, aKeySystem, options.mVideoType)) {
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continue;
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}
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// Our sandbox provides an origin specific unique identifier, and the
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// ability to persist data. We don't yet have a way to turn those off
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// and on for specific GMPs/CDMs, so we don't check the uniqueidentifier
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// and stateful attributes here.
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return true;
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}
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return false;
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}
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/* static */
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void
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MediaKeySystemAccess::NotifyObservers(nsIDOMWindow* aWindow,
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const nsAString& aKeySystem,
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MediaKeySystemStatus aStatus)
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{
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RequestMediaKeySystemAccessNotification data;
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data.mKeySystem = aKeySystem;
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data.mStatus = aStatus;
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nsAutoString json;
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data.ToJSON(json);
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EME_LOG("MediaKeySystemAccess::NotifyObservers() %s", NS_ConvertUTF16toUTF8(json).get());
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nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
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if (obs) {
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obs->NotifyObservers(aWindow, "mediakeys-request", json.get());
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}
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}
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} // namespace dom
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} // namespace mozilla
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