mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-10 11:54:40 +00:00
487 lines
15 KiB
C++
487 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/HTMLMediaElement.h"
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#include "mozilla/dom/MediaKeySession.h"
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#include "mozilla/dom/MediaKeyError.h"
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#include "mozilla/dom/MediaKeyMessageEvent.h"
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#include "mozilla/dom/MediaEncryptedEvent.h"
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#include "mozilla/dom/MediaKeyStatusMap.h"
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#include "nsCycleCollectionParticipant.h"
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#include "mozilla/CDMProxy.h"
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#include "mozilla/AsyncEventDispatcher.h"
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#include "mozilla/Move.h"
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#include "nsContentUtils.h"
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#include "mozilla/EMEUtils.h"
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#include "GMPUtils.h"
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#include "nsPrintfCString.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_INHERITED(MediaKeySession,
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DOMEventTargetHelper,
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mMediaKeyError,
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mKeys,
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mKeyStatusMap,
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mClosed)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(MediaKeySession)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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NS_IMPL_ADDREF_INHERITED(MediaKeySession, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(MediaKeySession, DOMEventTargetHelper)
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// Count of number of instances. Used to give each instance a
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// unique token.
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static uint32_t sMediaKeySessionNum = 0;
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MediaKeySession::MediaKeySession(JSContext* aCx,
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nsPIDOMWindow* aParent,
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MediaKeys* aKeys,
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const nsAString& aKeySystem,
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const nsAString& aCDMVersion,
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SessionType aSessionType,
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ErrorResult& aRv)
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: DOMEventTargetHelper(aParent)
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, mKeys(aKeys)
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, mKeySystem(aKeySystem)
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, mCDMVersion(aCDMVersion)
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, mSessionType(aSessionType)
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, mToken(sMediaKeySessionNum++)
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, mIsClosed(false)
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, mUninitialized(true)
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, mKeyStatusMap(new MediaKeyStatusMap(aParent))
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, mExpiration(JS::GenericNaN())
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{
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EME_LOG("MediaKeySession[%p,''] session Id set", this);
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MOZ_ASSERT(aParent);
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if (aRv.Failed()) {
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return;
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}
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mClosed = MakePromise(aRv, NS_LITERAL_CSTRING("MediaKeys.createSession"));
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}
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void MediaKeySession::SetSessionId(const nsAString& aSessionId)
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{
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EME_LOG("MediaKeySession[%p,'%s'] session Id set",
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this, NS_ConvertUTF16toUTF8(aSessionId).get());
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if (NS_WARN_IF(!mSessionId.IsEmpty())) {
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return;
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}
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mSessionId = aSessionId;
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mKeys->OnSessionIdReady(this);
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}
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MediaKeySession::~MediaKeySession()
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{
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}
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MediaKeyError*
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MediaKeySession::GetError() const
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{
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return mMediaKeyError;
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}
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void
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MediaKeySession::GetKeySystem(nsString& aOutKeySystem) const
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{
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aOutKeySystem.Assign(mKeySystem);
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}
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void
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MediaKeySession::GetSessionId(nsString& aSessionId) const
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{
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aSessionId = GetSessionId();
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}
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const nsString&
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MediaKeySession::GetSessionId() const
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{
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return mSessionId;
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}
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JSObject*
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MediaKeySession::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return MediaKeySessionBinding::Wrap(aCx, this, aGivenProto);
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}
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double
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MediaKeySession::Expiration() const
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{
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return mExpiration;
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}
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Promise*
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MediaKeySession::Closed() const
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{
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return mClosed;
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}
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void
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MediaKeySession::UpdateKeyStatusMap()
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{
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MOZ_ASSERT(!IsClosed());
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if (!mKeys->GetCDMProxy()) {
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return;
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}
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nsTArray<CDMCaps::KeyStatus> keyStatuses;
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{
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CDMCaps::AutoLock caps(mKeys->GetCDMProxy()->Capabilites());
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caps.GetKeyStatusesForSession(mSessionId, keyStatuses);
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}
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mKeyStatusMap->Update(keyStatuses);
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if (EME_LOG_ENABLED()) {
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nsAutoCString message(
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nsPrintfCString("MediaKeySession[%p,'%s'] key statuses change {",
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this, NS_ConvertUTF16toUTF8(mSessionId).get()));
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for (const CDMCaps::KeyStatus& status : keyStatuses) {
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message.Append(nsPrintfCString(" (%s,%s)", ToBase64(status.mId).get(),
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MediaKeyStatusValues::strings[status.mStatus].value));
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}
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message.Append(" }");
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EME_LOG(message.get());
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}
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}
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MediaKeyStatusMap*
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MediaKeySession::KeyStatuses() const
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{
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return mKeyStatusMap;
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}
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already_AddRefed<Promise>
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MediaKeySession::GenerateRequest(const nsAString& aInitDataType,
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const ArrayBufferViewOrArrayBuffer& aInitData,
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ErrorResult& aRv)
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{
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RefPtr<DetailedPromise> promise(MakePromise(aRv,
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NS_LITERAL_CSTRING("MediaKeySession.generateRequest")));
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if (aRv.Failed()) {
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return nullptr;
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}
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if (!mUninitialized) {
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EME_LOG("MediaKeySession[%p,'%s'] GenerateRequest() failed, uninitialized",
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this, NS_ConvertUTF16toUTF8(mSessionId).get());
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promise->MaybeReject(NS_ERROR_DOM_INVALID_ACCESS_ERR,
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NS_LITERAL_CSTRING("Session is already initialized in MediaKeySession.generateRequest()"));
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return promise.forget();
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}
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mUninitialized = false;
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if (aInitDataType.IsEmpty()) {
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promise->MaybeReject(NS_ERROR_DOM_TYPE_ERR,
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NS_LITERAL_CSTRING("Empty initDataType passed to MediaKeySession.generateRequest()"));
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EME_LOG("MediaKeySession[%p,'%s'] GenerateRequest() failed, empty initDataType",
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this, NS_ConvertUTF16toUTF8(mSessionId).get());
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return promise.forget();
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}
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nsTArray<uint8_t> data;
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CopyArrayBufferViewOrArrayBufferData(aInitData, data);
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if (data.IsEmpty()) {
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promise->MaybeReject(NS_ERROR_DOM_TYPE_ERR,
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NS_LITERAL_CSTRING("Empty initData passed to MediaKeySession.generateRequest()"));
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EME_LOG("MediaKeySession[%p,'%s'] GenerateRequest() failed, empty initData",
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this, NS_ConvertUTF16toUTF8(mSessionId).get());
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return promise.forget();
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}
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// Convert initData to base64 for easier logging.
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// Note: CreateSession() Move()s the data out of the array, so we have
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// to copy it here.
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nsAutoCString base64InitData(ToBase64(data));
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PromiseId pid = mKeys->StorePromise(promise);
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mKeys->GetCDMProxy()->CreateSession(Token(),
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mSessionType,
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pid,
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aInitDataType, data);
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EME_LOG("MediaKeySession[%p,'%s'] GenerateRequest() sent, "
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"promiseId=%d initData(base64)='%s' initDataType='%s'",
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this,
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NS_ConvertUTF16toUTF8(mSessionId).get(),
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pid,
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base64InitData.get(),
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NS_ConvertUTF16toUTF8(aInitDataType).get());
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return promise.forget();
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}
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already_AddRefed<Promise>
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MediaKeySession::Load(const nsAString& aSessionId, ErrorResult& aRv)
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{
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RefPtr<DetailedPromise> promise(MakePromise(aRv,
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NS_LITERAL_CSTRING("MediaKeySession.load")));
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if (aRv.Failed()) {
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return nullptr;
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}
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if (aSessionId.IsEmpty()) {
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promise->MaybeReject(NS_ERROR_DOM_INVALID_ACCESS_ERR,
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NS_LITERAL_CSTRING("Trying to load a session with empty session ID"));
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// "The sessionId parameter is empty."
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EME_LOG("MediaKeySession[%p,''] Load() failed, no sessionId", this);
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return promise.forget();
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}
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if (!mUninitialized) {
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promise->MaybeReject(NS_ERROR_DOM_INVALID_ACCESS_ERR,
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NS_LITERAL_CSTRING("Session is already initialized in MediaKeySession.load()"));
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EME_LOG("MediaKeySession[%p,'%s'] Load() failed, uninitialized",
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this, NS_ConvertUTF16toUTF8(aSessionId).get());
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return promise.forget();
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}
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mUninitialized = false;
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// We now know the sessionId being loaded into this session. Remove the
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// session from its owning MediaKey's set of sessions awaiting a sessionId.
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RefPtr<MediaKeySession> session(mKeys->GetPendingSession(Token()));
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MOZ_ASSERT(session == this, "Session should be awaiting id on its own token");
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// Associate with the known sessionId.
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SetSessionId(aSessionId);
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PromiseId pid = mKeys->StorePromise(promise);
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mKeys->GetCDMProxy()->LoadSession(pid, aSessionId);
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EME_LOG("MediaKeySession[%p,'%s'] Load() sent to CDM, promiseId=%d",
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this, NS_ConvertUTF16toUTF8(mSessionId).get(), pid);
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return promise.forget();
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}
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already_AddRefed<Promise>
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MediaKeySession::Update(const ArrayBufferViewOrArrayBuffer& aResponse, ErrorResult& aRv)
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{
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RefPtr<DetailedPromise> promise(MakePromise(aRv,
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NS_LITERAL_CSTRING("MediaKeySession.update")));
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if (aRv.Failed()) {
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return nullptr;
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}
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if (!IsCallable()) {
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// If this object's callable value is false, return a promise rejected
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// with a new DOMException whose name is InvalidStateError.
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EME_LOG("MediaKeySession[%p,''] Update() called before sessionId set by CDM", this);
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promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR,
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NS_LITERAL_CSTRING("MediaKeySession.Update() called before sessionId set by CDM"));
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return promise.forget();
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}
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nsTArray<uint8_t> data;
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if (IsClosed() || !mKeys->GetCDMProxy()) {
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promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR,
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NS_LITERAL_CSTRING("Session is closed or was not properly initialized"));
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EME_LOG("MediaKeySession[%p,'%s'] Update() failed, session is closed or was not properly initialised.",
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this, NS_ConvertUTF16toUTF8(mSessionId).get());
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return promise.forget();
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}
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CopyArrayBufferViewOrArrayBufferData(aResponse, data);
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if (data.IsEmpty()) {
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promise->MaybeReject(NS_ERROR_DOM_TYPE_ERR,
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NS_LITERAL_CSTRING("Empty response buffer passed to MediaKeySession.update()"));
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EME_LOG("MediaKeySession[%p,'%s'] Update() failed, empty response buffer",
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this, NS_ConvertUTF16toUTF8(mSessionId).get());
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return promise.forget();
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}
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// Convert response to base64 for easier logging.
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// Note: UpdateSession() Move()s the data out of the array, so we have
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// to copy it here.
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nsAutoCString base64Response(ToBase64(data));
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PromiseId pid = mKeys->StorePromise(promise);
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mKeys->GetCDMProxy()->UpdateSession(mSessionId,
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pid,
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data);
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EME_LOG("MediaKeySession[%p,'%s'] Update() sent to CDM, "
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"promiseId=%d Response(base64)='%s'",
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this,
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NS_ConvertUTF16toUTF8(mSessionId).get(),
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pid,
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base64Response.get());
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return promise.forget();
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}
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already_AddRefed<Promise>
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MediaKeySession::Close(ErrorResult& aRv)
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{
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RefPtr<DetailedPromise> promise(MakePromise(aRv,
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NS_LITERAL_CSTRING("MediaKeySession.close")));
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if (aRv.Failed()) {
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return nullptr;
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}
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if (!IsCallable()) {
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// If this object's callable value is false, return a promise rejected
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// with a new DOMException whose name is InvalidStateError.
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EME_LOG("MediaKeySession[%p,''] Close() called before sessionId set by CDM", this);
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promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR,
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NS_LITERAL_CSTRING("MediaKeySession.Close() called before sessionId set by CDM"));
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return promise.forget();
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}
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if (IsClosed() || !mKeys->GetCDMProxy()) {
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EME_LOG("MediaKeySession[%p,'%s'] Close() already closed",
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this, NS_ConvertUTF16toUTF8(mSessionId).get());
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promise->MaybeResolve(JS::UndefinedHandleValue);
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return promise.forget();
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}
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PromiseId pid = mKeys->StorePromise(promise);
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mKeys->GetCDMProxy()->CloseSession(mSessionId, pid);
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EME_LOG("MediaKeySession[%p,'%s'] Close() sent to CDM, promiseId=%d",
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this, NS_ConvertUTF16toUTF8(mSessionId).get(), pid);
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return promise.forget();
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}
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void
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MediaKeySession::OnClosed()
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{
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if (IsClosed()) {
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return;
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}
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EME_LOG("MediaKeySession[%p,'%s'] session close operation complete.",
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this, NS_ConvertUTF16toUTF8(mSessionId).get());
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mIsClosed = true;
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mKeys->OnSessionClosed(this);
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mKeys = nullptr;
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mClosed->MaybeResolve(JS::UndefinedHandleValue);
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}
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bool
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MediaKeySession::IsClosed() const
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{
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return mIsClosed;
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}
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already_AddRefed<Promise>
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MediaKeySession::Remove(ErrorResult& aRv)
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{
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RefPtr<DetailedPromise> promise(MakePromise(aRv,
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NS_LITERAL_CSTRING("MediaKeySession.remove")));
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if (aRv.Failed()) {
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return nullptr;
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}
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if (!IsCallable()) {
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// If this object's callable value is false, return a promise rejected
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// with a new DOMException whose name is InvalidStateError.
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EME_LOG("MediaKeySession[%p,''] Remove() called before sessionId set by CDM", this);
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promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR,
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NS_LITERAL_CSTRING("MediaKeySession.Remove() called before sessionId set by CDM"));
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return promise.forget();
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}
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if (mSessionType != SessionType::Persistent) {
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promise->MaybeReject(NS_ERROR_DOM_INVALID_ACCESS_ERR,
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NS_LITERAL_CSTRING("Calling MediaKeySession.remove() on non-persistent session"));
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// "The operation is not supported on session type sessions."
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EME_LOG("MediaKeySession[%p,'%s'] Remove() failed, sesion not persisrtent.",
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this, NS_ConvertUTF16toUTF8(mSessionId).get());
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return promise.forget();
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}
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if (IsClosed() || !mKeys->GetCDMProxy()) {
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promise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR,
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NS_LITERAL_CSTRING("MediaKeySesison.remove() called but session is not active"));
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// "The session is closed."
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EME_LOG("MediaKeySession[%p,'%s'] Remove() failed, already session closed.",
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this, NS_ConvertUTF16toUTF8(mSessionId).get());
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return promise.forget();
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}
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PromiseId pid = mKeys->StorePromise(promise);
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mKeys->GetCDMProxy()->RemoveSession(mSessionId, pid);
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EME_LOG("MediaKeySession[%p,'%s'] Remove() sent to CDM, promiseId=%d.",
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this, NS_ConvertUTF16toUTF8(mSessionId).get(), pid);
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return promise.forget();
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}
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void
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MediaKeySession::DispatchKeyMessage(MediaKeyMessageType aMessageType,
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const nsTArray<uint8_t>& aMessage)
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{
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if (EME_LOG_ENABLED()) {
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EME_LOG("MediaKeySession[%p,'%s'] DispatchKeyMessage() type=%s message(base64)='%s'",
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this, NS_ConvertUTF16toUTF8(mSessionId).get(),
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MediaKeyMessageTypeValues::strings[uint32_t(aMessageType)].value,
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ToBase64(aMessage).get());
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}
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RefPtr<MediaKeyMessageEvent> event(
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MediaKeyMessageEvent::Constructor(this, aMessageType, aMessage));
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RefPtr<AsyncEventDispatcher> asyncDispatcher =
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new AsyncEventDispatcher(this, event);
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asyncDispatcher->PostDOMEvent();
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}
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void
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MediaKeySession::DispatchKeyError(uint32_t aSystemCode)
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{
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EME_LOG("MediaKeySession[%p,'%s'] DispatchKeyError() systemCode=%u.",
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this, NS_ConvertUTF16toUTF8(mSessionId).get(), aSystemCode);
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RefPtr<MediaKeyError> event(new MediaKeyError(this, aSystemCode));
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RefPtr<AsyncEventDispatcher> asyncDispatcher =
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new AsyncEventDispatcher(this, event);
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asyncDispatcher->PostDOMEvent();
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}
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void
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MediaKeySession::DispatchKeyStatusesChange()
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{
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if (IsClosed()) {
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return;
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}
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UpdateKeyStatusMap();
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RefPtr<AsyncEventDispatcher> asyncDispatcher =
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new AsyncEventDispatcher(this, NS_LITERAL_STRING("keystatuseschange"), false);
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asyncDispatcher->PostDOMEvent();
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}
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uint32_t
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MediaKeySession::Token() const
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{
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return mToken;
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}
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already_AddRefed<DetailedPromise>
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MediaKeySession::MakePromise(ErrorResult& aRv, const nsACString& aName)
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{
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetParentObject());
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if (!global) {
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NS_WARNING("Passed non-global to MediaKeys ctor!");
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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return DetailedPromise::Create(global, aRv, aName);
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}
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void
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MediaKeySession::SetExpiration(double aExpiration)
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{
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EME_LOG("MediaKeySession[%p,'%s'] SetExpiry(%lf)",
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this,
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NS_ConvertUTF16toUTF8(mSessionId).get(),
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aExpiration);
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mExpiration = aExpiration;
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}
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} // namespace dom
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} // namespace mozilla
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