134 lines
5.1 KiB
C++
134 lines
5.1 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WMFCDMImpl.h"
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#include <unordered_map>
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#include "mozilla/AppShutdown.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/ScopeExit.h"
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#include "mozilla/dom/MediaKeySession.h"
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#include "mozilla/dom/KeySystemNames.h"
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namespace mozilla {
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RefPtr<WMFCDMImpl::InitPromise> WMFCDMImpl::Init(
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const WMFCDMImpl::InitParams& aParams) {
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if (!mCDM) {
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mCDM = MakeRefPtr<MFCDMChild>(mKeySystem);
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mCDM->EnsureRemote();
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}
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RefPtr<WMFCDMImpl> self = this;
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mCDM->Init(aParams.mOrigin, aParams.mInitDataTypes,
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aParams.mPersistentStateRequired
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? KeySystemConfig::Requirement::Required
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: KeySystemConfig::Requirement::Optional,
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aParams.mDistinctiveIdentifierRequired
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? KeySystemConfig::Requirement::Required
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: KeySystemConfig::Requirement::Optional,
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aParams.mAudioCapabilities, aParams.mVideoCapabilities,
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aParams.mProxyCallback)
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->Then(
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mCDM->ManagerThread(), __func__,
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[self, this](const MFCDMInitIPDL& init) {
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mInitPromiseHolder.ResolveIfExists(true, __func__);
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},
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[self, this](const nsresult rv) {
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mInitPromiseHolder.RejectIfExists(rv, __func__);
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});
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return mInitPromiseHolder.Ensure(__func__);
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}
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RefPtr<KeySystemConfig::SupportedConfigsPromise>
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WMFCDMCapabilites::GetCapabilities(
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const nsTArray<KeySystemConfigRequest>& aRequests) {
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MOZ_ASSERT(NS_IsMainThread());
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if (AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownConfirmed)) {
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return SupportedConfigsPromise::CreateAndReject(false, __func__);
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}
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if (!mCapabilitiesPromiseHolder.IsEmpty()) {
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return mCapabilitiesPromiseHolder.Ensure(__func__);
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}
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using CapabilitiesPromise = MFCDMChild::CapabilitiesPromise;
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nsTArray<RefPtr<CapabilitiesPromise>> promises;
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for (const auto& request : aRequests) {
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RefPtr<MFCDMChild> cdm = new MFCDMChild(request.mKeySystem);
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cdm->EnsureRemote();
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promises.AppendElement(cdm->GetCapabilities(MFCDMCapabilitiesRequest{
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nsString{request.mKeySystem},
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request.mDecryption == KeySystemConfig::DecryptionInfo::Hardware,
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request.mIsPrivateBrowsing}));
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mCDMs.AppendElement(std::move(cdm));
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}
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CapabilitiesPromise::AllSettled(GetCurrentSerialEventTarget(), promises)
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->Then(
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GetMainThreadSerialEventTarget(), __func__,
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[self = RefPtr<WMFCDMCapabilites>(this), this](
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CapabilitiesPromise::AllSettledPromiseType::ResolveOrRejectValue&&
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aResult) {
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mCapabilitiesPromisesRequest.Complete();
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// Reset cdm
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auto exit = MakeScopeExit([&] {
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for (auto& cdm : mCDMs) {
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cdm->Shutdown();
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}
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mCDMs.Clear();
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});
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nsTArray<KeySystemConfig> outConfigs;
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for (const auto& promiseRv : aResult.ResolveValue()) {
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if (promiseRv.IsReject()) {
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continue;
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}
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const MFCDMCapabilitiesIPDL& capabilities =
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promiseRv.ResolveValue();
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EME_LOG("capabilities: keySystem=%s (hw-secure=%d)",
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NS_ConvertUTF16toUTF8(capabilities.keySystem()).get(),
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capabilities.isHardwareDecryption());
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for (const auto& v : capabilities.videoCapabilities()) {
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for (const auto& scheme : v.encryptionSchemes()) {
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EME_LOG("capabilities: video=%s, scheme=%s",
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NS_ConvertUTF16toUTF8(v.contentType()).get(),
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CryptoSchemeToString(scheme));
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}
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}
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for (const auto& a : capabilities.audioCapabilities()) {
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for (const auto& scheme : a.encryptionSchemes()) {
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EME_LOG("capabilities: audio=%s, scheme=%s",
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NS_ConvertUTF16toUTF8(a.contentType()).get(),
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CryptoSchemeToString(scheme));
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}
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}
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KeySystemConfig* config = outConfigs.AppendElement();
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MFCDMCapabilitiesIPDLToKeySystemConfig(capabilities, *config);
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}
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if (outConfigs.IsEmpty()) {
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EME_LOG(
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"Failed on getting capabilities from all settled promise");
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mCapabilitiesPromiseHolder.Reject(false, __func__);
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return;
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}
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mCapabilitiesPromiseHolder.Resolve(std::move(outConfigs), __func__);
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})
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->Track(mCapabilitiesPromisesRequest);
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return mCapabilitiesPromiseHolder.Ensure(__func__);
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}
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WMFCDMCapabilites::~WMFCDMCapabilites() {
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mCapabilitiesPromisesRequest.DisconnectIfExists();
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mCapabilitiesPromiseHolder.RejectIfExists(false, __func__);
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for (auto& cdm : mCDMs) {
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cdm->Shutdown();
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}
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}
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} // namespace mozilla
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