mirror of
https://github.com/classilla/tenfourfox.git
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374 lines
10 KiB
C++
374 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "GMPDecryptorChild.h"
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#include "GMPContentChild.h"
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#include "GMPChild.h"
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#include "mozilla/TimeStamp.h"
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#include "mozilla/unused.h"
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#include "runnable_utils.h"
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#include <ctime>
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#define ON_GMP_THREAD() (mPlugin->GMPMessageLoop() == MessageLoop::current())
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#define CALL_ON_GMP_THREAD(_func, ...) \
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CallOnGMPThread(&GMPDecryptorChild::_func, __VA_ARGS__)
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namespace mozilla {
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namespace gmp {
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GMPDecryptorChild::GMPDecryptorChild(GMPContentChild* aPlugin,
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const nsTArray<uint8_t>& aPluginVoucher,
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const nsTArray<uint8_t>& aSandboxVoucher)
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: mSession(nullptr)
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, mPlugin(aPlugin)
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, mPluginVoucher(aPluginVoucher)
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, mSandboxVoucher(aSandboxVoucher)
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{
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MOZ_ASSERT(mPlugin);
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}
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GMPDecryptorChild::~GMPDecryptorChild()
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{
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}
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template <typename MethodType, typename... ParamType>
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void
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GMPDecryptorChild::CallMethod(MethodType aMethod, ParamType&&... aParams)
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{
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MOZ_ASSERT(ON_GMP_THREAD());
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// Don't send IPC messages after tear-down.
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if (mSession) {
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(this->*aMethod)(Forward<ParamType>(aParams)...);
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}
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}
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template<typename T>
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struct AddConstReference {
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typedef const typename RemoveReference<T>::Type& Type;
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};
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template<typename MethodType, typename... ParamType>
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void
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GMPDecryptorChild::CallOnGMPThread(MethodType aMethod, ParamType&&... aParams)
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{
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if (ON_GMP_THREAD()) {
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// Use forwarding reference when we can.
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CallMethod(aMethod, Forward<ParamType>(aParams)...);
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} else {
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// Use const reference when we have to.
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auto m = &GMPDecryptorChild::CallMethod<
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decltype(aMethod), typename AddConstReference<ParamType>::Type...>;
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auto t = NewRunnableMethod(this, m, aMethod, Forward<ParamType>(aParams)...);
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mPlugin->GMPMessageLoop()->PostTask(FROM_HERE, t);
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}
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}
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void
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GMPDecryptorChild::Init(GMPDecryptor* aSession)
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{
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MOZ_ASSERT(aSession);
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mSession = aSession;
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}
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void
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GMPDecryptorChild::SetSessionId(uint32_t aCreateSessionToken,
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const char* aSessionId,
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uint32_t aSessionIdLength)
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{
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CALL_ON_GMP_THREAD(SendSetSessionId,
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aCreateSessionToken, nsCString(aSessionId, aSessionIdLength));
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}
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void
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GMPDecryptorChild::ResolveLoadSessionPromise(uint32_t aPromiseId,
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bool aSuccess)
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{
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CALL_ON_GMP_THREAD(SendResolveLoadSessionPromise, aPromiseId, aSuccess);
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}
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void
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GMPDecryptorChild::ResolvePromise(uint32_t aPromiseId)
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{
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CALL_ON_GMP_THREAD(SendResolvePromise, aPromiseId);
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}
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void
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GMPDecryptorChild::RejectPromise(uint32_t aPromiseId,
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GMPDOMException aException,
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const char* aMessage,
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uint32_t aMessageLength)
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{
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CALL_ON_GMP_THREAD(SendRejectPromise,
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aPromiseId, aException, nsCString(aMessage, aMessageLength));
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}
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void
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GMPDecryptorChild::SessionMessage(const char* aSessionId,
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uint32_t aSessionIdLength,
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GMPSessionMessageType aMessageType,
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const uint8_t* aMessage,
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uint32_t aMessageLength)
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{
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nsTArray<uint8_t> msg;
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msg.AppendElements(aMessage, aMessageLength);
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CALL_ON_GMP_THREAD(SendSessionMessage,
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nsCString(aSessionId, aSessionIdLength),
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aMessageType, Move(msg));
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}
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void
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GMPDecryptorChild::ExpirationChange(const char* aSessionId,
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uint32_t aSessionIdLength,
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GMPTimestamp aExpiryTime)
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{
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CALL_ON_GMP_THREAD(SendExpirationChange,
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nsCString(aSessionId, aSessionIdLength), aExpiryTime);
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}
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void
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GMPDecryptorChild::SessionClosed(const char* aSessionId,
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uint32_t aSessionIdLength)
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{
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CALL_ON_GMP_THREAD(SendSessionClosed,
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nsCString(aSessionId, aSessionIdLength));
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}
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void
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GMPDecryptorChild::SessionError(const char* aSessionId,
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uint32_t aSessionIdLength,
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GMPDOMException aException,
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uint32_t aSystemCode,
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const char* aMessage,
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uint32_t aMessageLength)
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{
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CALL_ON_GMP_THREAD(SendSessionError,
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nsCString(aSessionId, aSessionIdLength),
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aException, aSystemCode,
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nsCString(aMessage, aMessageLength));
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}
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void
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GMPDecryptorChild::KeyStatusChanged(const char* aSessionId,
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uint32_t aSessionIdLength,
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const uint8_t* aKeyId,
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uint32_t aKeyIdLength,
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GMPMediaKeyStatus aStatus)
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{
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nsAutoTArray<uint8_t, 16> kid;
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kid.AppendElements(aKeyId, aKeyIdLength);
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CALL_ON_GMP_THREAD(SendKeyStatusChanged,
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nsCString(aSessionId, aSessionIdLength), kid,
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aStatus);
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}
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void
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GMPDecryptorChild::Decrypted(GMPBuffer* aBuffer, GMPErr aResult)
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{
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if (!ON_GMP_THREAD()) {
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// We should run this whole method on the GMP thread since the buffer needs
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// to be deleted after the SendDecrypted call.
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auto t = NewRunnableMethod(this, &GMPDecryptorChild::Decrypted, aBuffer, aResult);
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mPlugin->GMPMessageLoop()->PostTask(FROM_HERE, t);
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return;
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}
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if (!aBuffer) {
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NS_WARNING("GMPDecryptorCallback passed bull GMPBuffer");
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return;
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}
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auto buffer = static_cast<GMPBufferImpl*>(aBuffer);
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if (mSession) {
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SendDecrypted(buffer->mId, aResult, buffer->mData);
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}
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delete buffer;
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}
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void
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GMPDecryptorChild::SetCapabilities(uint64_t aCaps)
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{
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CALL_ON_GMP_THREAD(SendSetCaps, aCaps);
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}
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void
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GMPDecryptorChild::GetSandboxVoucher(const uint8_t** aVoucher,
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uint32_t* aVoucherLength)
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{
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if (!aVoucher || !aVoucherLength) {
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return;
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}
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*aVoucher = mSandboxVoucher.Elements();
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*aVoucherLength = mSandboxVoucher.Length();
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}
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void
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GMPDecryptorChild::GetPluginVoucher(const uint8_t** aVoucher,
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uint32_t* aVoucherLength)
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{
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if (!aVoucher || !aVoucherLength) {
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return;
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}
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*aVoucher = mPluginVoucher.Elements();
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*aVoucherLength = mPluginVoucher.Length();
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}
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bool
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GMPDecryptorChild::RecvInit()
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{
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if (!mSession) {
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return false;
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}
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mSession->Init(this);
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return true;
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}
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bool
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GMPDecryptorChild::RecvCreateSession(const uint32_t& aCreateSessionToken,
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const uint32_t& aPromiseId,
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const nsCString& aInitDataType,
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InfallibleTArray<uint8_t>&& aInitData,
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const GMPSessionType& aSessionType)
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{
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if (!mSession) {
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return false;
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}
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mSession->CreateSession(aCreateSessionToken,
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aPromiseId,
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aInitDataType.get(),
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aInitDataType.Length(),
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aInitData.Elements(),
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aInitData.Length(),
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aSessionType);
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return true;
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}
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bool
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GMPDecryptorChild::RecvLoadSession(const uint32_t& aPromiseId,
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const nsCString& aSessionId)
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{
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if (!mSession) {
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return false;
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}
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mSession->LoadSession(aPromiseId,
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aSessionId.get(),
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aSessionId.Length());
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return true;
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}
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bool
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GMPDecryptorChild::RecvUpdateSession(const uint32_t& aPromiseId,
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const nsCString& aSessionId,
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InfallibleTArray<uint8_t>&& aResponse)
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{
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if (!mSession) {
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return false;
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}
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mSession->UpdateSession(aPromiseId,
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aSessionId.get(),
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aSessionId.Length(),
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aResponse.Elements(),
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aResponse.Length());
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return true;
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}
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bool
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GMPDecryptorChild::RecvCloseSession(const uint32_t& aPromiseId,
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const nsCString& aSessionId)
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{
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if (!mSession) {
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return false;
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}
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mSession->CloseSession(aPromiseId,
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aSessionId.get(),
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aSessionId.Length());
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return true;
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}
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bool
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GMPDecryptorChild::RecvRemoveSession(const uint32_t& aPromiseId,
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const nsCString& aSessionId)
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{
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if (!mSession) {
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return false;
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}
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mSession->RemoveSession(aPromiseId,
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aSessionId.get(),
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aSessionId.Length());
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return true;
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}
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bool
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GMPDecryptorChild::RecvSetServerCertificate(const uint32_t& aPromiseId,
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InfallibleTArray<uint8_t>&& aServerCert)
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{
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if (!mSession) {
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return false;
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}
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mSession->SetServerCertificate(aPromiseId,
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aServerCert.Elements(),
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aServerCert.Length());
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return true;
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}
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bool
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GMPDecryptorChild::RecvDecrypt(const uint32_t& aId,
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InfallibleTArray<uint8_t>&& aBuffer,
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const GMPDecryptionData& aMetadata)
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{
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if (!mSession) {
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return false;
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}
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// Note: the GMPBufferImpl created here is deleted when the GMP passes
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// it back in the Decrypted() callback above.
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GMPBufferImpl* buffer = new GMPBufferImpl(aId, aBuffer);
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// |metadata| lifetime is managed by |buffer|.
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GMPEncryptedBufferDataImpl* metadata = new GMPEncryptedBufferDataImpl(aMetadata);
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buffer->SetMetadata(metadata);
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mSession->Decrypt(buffer, metadata);
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return true;
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}
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bool
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GMPDecryptorChild::RecvDecryptingComplete()
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{
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// Reset |mSession| before calling DecryptingComplete(). We should not send
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// any IPC messages during tear-down.
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auto session = mSession;
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mSession = nullptr;
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if (!session) {
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return false;
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}
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session->DecryptingComplete();
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Unused << Send__delete__(this);
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return true;
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}
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} // namespace gmp
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} // namespace mozilla
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// avoid redefined macro in unified build
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#undef ON_GMP_THREAD
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#undef CALL_ON_GMP_THREAD
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