Add m-esr52 at 52.6.0

1 files changed, 403 insertions, 0 deletions

diff --git a/dom/media/gmp/GMPDecryptorChild.cpp b/dom/media/gmp/GMPDecryptorChild.cpp
new file mode 100644
index 000000000..6da3c6c43
--- /dev/null
+++ b/dom/media/gmp/GMPDecryptorChild.cpp
@@ -0,0 +1,403 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "GMPDecryptorChild.h"
+#include "GMPContentChild.h"
+#include "GMPChild.h"
+#include "base/task.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/Unused.h"
+#include "runnable_utils.h"
+#include <ctime>
+
+#define ON_GMP_THREAD() (mPlugin->GMPMessageLoop() == MessageLoop::current())
+
+#define CALL_ON_GMP_THREAD(_func, ...) \
+  CallOnGMPThread(&GMPDecryptorChild::_func, __VA_ARGS__)
+
+namespace mozilla {
+namespace gmp {
+
+GMPDecryptorChild::GMPDecryptorChild(GMPContentChild* aPlugin,
+                                     const nsTArray<uint8_t>& aPluginVoucher,
+                                     const nsTArray<uint8_t>& aSandboxVoucher)
+  : mSession(nullptr)
+  , mPlugin(aPlugin)
+  , mPluginVoucher(aPluginVoucher)
+  , mSandboxVoucher(aSandboxVoucher)
+{
+  MOZ_ASSERT(mPlugin);
+}
+
+GMPDecryptorChild::~GMPDecryptorChild()
+{
+}
+
+template <typename MethodType, typename... ParamType>
+void
+GMPDecryptorChild::CallMethod(MethodType aMethod, ParamType&&... aParams)
+{
+  MOZ_ASSERT(ON_GMP_THREAD());
+  // Don't send IPC messages after tear-down.
+  if (mSession) {
+    (this->*aMethod)(Forward<ParamType>(aParams)...);
+  }
+}
+
+template<typename T>
+struct AddConstReference {
+  typedef const typename RemoveReference<T>::Type& Type;
+};
+
+template<typename MethodType, typename... ParamType>
+void
+GMPDecryptorChild::CallOnGMPThread(MethodType aMethod, ParamType&&... aParams)
+{
+  if (ON_GMP_THREAD()) {
+    // Use forwarding reference when we can.
+    CallMethod(aMethod, Forward<ParamType>(aParams)...);
+  } else {
+    // Use const reference when we have to.
+    auto m = &GMPDecryptorChild::CallMethod<
+        decltype(aMethod), typename AddConstReference<ParamType>::Type...>;
+    RefPtr<mozilla::Runnable> t =
+      dont_add_new_uses_of_this::NewRunnableMethod(this, m, aMethod, Forward<ParamType>(aParams)...);
+    mPlugin->GMPMessageLoop()->PostTask(t.forget());
+  }
+}
+
+void
+GMPDecryptorChild::Init(GMPDecryptor* aSession)
+{
+  MOZ_ASSERT(aSession);
+  mSession = aSession;
+  // The ID of this decryptor is the IPDL actor ID. Note it's unique inside
+  // the child process, but not necessarily across all gecko processes. However,
+  // since GMPDecryptors are segregated by node ID/origin, we shouldn't end up
+  // with clashes in the content process.
+  SendSetDecryptorId(Id());
+}
+
+void
+GMPDecryptorChild::SetSessionId(uint32_t aCreateSessionToken,
+                                const char* aSessionId,
+                                uint32_t aSessionIdLength)
+{
+  CALL_ON_GMP_THREAD(SendSetSessionId,
+                     aCreateSessionToken, nsCString(aSessionId, aSessionIdLength));
+}
+
+void
+GMPDecryptorChild::ResolveLoadSessionPromise(uint32_t aPromiseId,
+                                             bool aSuccess)
+{
+  CALL_ON_GMP_THREAD(SendResolveLoadSessionPromise, aPromiseId, aSuccess);
+}
+
+void
+GMPDecryptorChild::ResolvePromise(uint32_t aPromiseId)
+{
+  CALL_ON_GMP_THREAD(SendResolvePromise, aPromiseId);
+}
+
+void
+GMPDecryptorChild::RejectPromise(uint32_t aPromiseId,
+                                 GMPDOMException aException,
+                                 const char* aMessage,
+                                 uint32_t aMessageLength)
+{
+  CALL_ON_GMP_THREAD(SendRejectPromise,
+                     aPromiseId, aException, nsCString(aMessage, aMessageLength));
+}
+
+void
+GMPDecryptorChild::SessionMessage(const char* aSessionId,
+                                  uint32_t aSessionIdLength,
+                                  GMPSessionMessageType aMessageType,
+                                  const uint8_t* aMessage,
+                                  uint32_t aMessageLength)
+{
+  nsTArray<uint8_t> msg;
+  msg.AppendElements(aMessage, aMessageLength);
+  CALL_ON_GMP_THREAD(SendSessionMessage,
+                     nsCString(aSessionId, aSessionIdLength),
+                     aMessageType, Move(msg));
+}
+
+void
+GMPDecryptorChild::ExpirationChange(const char* aSessionId,
+                                    uint32_t aSessionIdLength,
+                                    GMPTimestamp aExpiryTime)
+{
+  CALL_ON_GMP_THREAD(SendExpirationChange,
+                     nsCString(aSessionId, aSessionIdLength), aExpiryTime);
+}
+
+void
+GMPDecryptorChild::SessionClosed(const char* aSessionId,
+                                 uint32_t aSessionIdLength)
+{
+  CALL_ON_GMP_THREAD(SendSessionClosed,
+                     nsCString(aSessionId, aSessionIdLength));
+}
+
+void
+GMPDecryptorChild::SessionError(const char* aSessionId,
+                                uint32_t aSessionIdLength,
+                                GMPDOMException aException,
+                                uint32_t aSystemCode,
+                                const char* aMessage,
+                                uint32_t aMessageLength)
+{
+  CALL_ON_GMP_THREAD(SendSessionError,
+                     nsCString(aSessionId, aSessionIdLength),
+                     aException, aSystemCode,
+                     nsCString(aMessage, aMessageLength));
+}
+
+void
+GMPDecryptorChild::KeyStatusChanged(const char* aSessionId,
+                                    uint32_t aSessionIdLength,
+                                    const uint8_t* aKeyId,
+                                    uint32_t aKeyIdLength,
+                                    GMPMediaKeyStatus aStatus)
+{
+  AutoTArray<uint8_t, 16> kid;
+  kid.AppendElements(aKeyId, aKeyIdLength);
+
+  nsTArray<GMPKeyInformation> keyInfos;
+  keyInfos.AppendElement(GMPKeyInformation(kid, aStatus));
+  CALL_ON_GMP_THREAD(SendBatchedKeyStatusChanged,
+                     nsCString(aSessionId, aSessionIdLength),
+                     keyInfos);
+}
+
+void
+GMPDecryptorChild::BatchedKeyStatusChanged(const char* aSessionId,
+                                           uint32_t aSessionIdLength,
+                                           const GMPMediaKeyInfo* aKeyInfos,
+                                           uint32_t aKeyInfosLength)
+{
+  nsTArray<GMPKeyInformation> keyInfos;
+  for (uint32_t i = 0; i < aKeyInfosLength; i++) {
+    nsTArray<uint8_t> keyId;
+    keyId.AppendElements(aKeyInfos[i].keyid, aKeyInfos[i].keyid_size);
+    keyInfos.AppendElement(GMPKeyInformation(keyId, aKeyInfos[i].status));
+  }
+  CALL_ON_GMP_THREAD(SendBatchedKeyStatusChanged,
+                     nsCString(aSessionId, aSessionIdLength),
+                     keyInfos);
+}
+
+void
+GMPDecryptorChild::Decrypted(GMPBuffer* aBuffer, GMPErr aResult)
+{
+  if (!ON_GMP_THREAD()) {
+    // We should run this whole method on the GMP thread since the buffer needs
+    // to be deleted after the SendDecrypted call.
+    mPlugin->GMPMessageLoop()->PostTask(NewRunnableMethod
+                                        <GMPBuffer*, GMPErr>(this,
+                                                             &GMPDecryptorChild::Decrypted,
+                                                             aBuffer, aResult));
+    return;
+  }
+
+  if (!aBuffer) {
+    NS_WARNING("GMPDecryptorCallback passed bull GMPBuffer");
+    return;
+  }
+
+  auto buffer = static_cast<GMPBufferImpl*>(aBuffer);
+  if (mSession) {
+    SendDecrypted(buffer->mId, aResult, buffer->mData);
+  }
+  delete buffer;
+}
+
+void
+GMPDecryptorChild::SetCapabilities(uint64_t aCaps)
+{
+  // Deprecated.
+}
+
+void
+GMPDecryptorChild::GetSandboxVoucher(const uint8_t** aVoucher,
+                                     uint32_t* aVoucherLength)
+{
+  if (!aVoucher || !aVoucherLength) {
+    return;
+  }
+  *aVoucher = mSandboxVoucher.Elements();
+  *aVoucherLength = mSandboxVoucher.Length();
+}
+
+void
+GMPDecryptorChild::GetPluginVoucher(const uint8_t** aVoucher,
+                                    uint32_t* aVoucherLength)
+{
+  if (!aVoucher || !aVoucherLength) {
+    return;
+  }
+  *aVoucher = mPluginVoucher.Elements();
+  *aVoucherLength = mPluginVoucher.Length();
+}
+
+bool
+GMPDecryptorChild::RecvInit(const bool& aDistinctiveIdentifierRequired,
+                            const bool& aPersistentStateRequired)
+{
+  if (!mSession) {
+    return false;
+  }
+  mSession->Init(this, aDistinctiveIdentifierRequired, aPersistentStateRequired);
+  return true;
+}
+
+bool
+GMPDecryptorChild::RecvCreateSession(const uint32_t& aCreateSessionToken,
+                                     const uint32_t& aPromiseId,
+                                     const nsCString& aInitDataType,
+                                     InfallibleTArray<uint8_t>&& aInitData,
+                                     const GMPSessionType& aSessionType)
+{
+  if (!mSession) {
+    return false;
+  }
+
+  mSession->CreateSession(aCreateSessionToken,
+                          aPromiseId,
+                          aInitDataType.get(),
+                          aInitDataType.Length(),
+                          aInitData.Elements(),
+                          aInitData.Length(),
+                          aSessionType);
+
+  return true;
+}
+
+bool
+GMPDecryptorChild::RecvLoadSession(const uint32_t& aPromiseId,
+                                   const nsCString& aSessionId)
+{
+  if (!mSession) {
+    return false;
+  }
+
+  mSession->LoadSession(aPromiseId,
+                        aSessionId.get(),
+                        aSessionId.Length());
+
+  return true;
+}
+
+bool
+GMPDecryptorChild::RecvUpdateSession(const uint32_t& aPromiseId,
+                                     const nsCString& aSessionId,
+                                     InfallibleTArray<uint8_t>&& aResponse)
+{
+  if (!mSession) {
+    return false;
+  }
+
+  mSession->UpdateSession(aPromiseId,
+                          aSessionId.get(),
+                          aSessionId.Length(),
+                          aResponse.Elements(),
+                          aResponse.Length());
+
+  return true;
+}
+
+bool
+GMPDecryptorChild::RecvCloseSession(const uint32_t& aPromiseId,
+                                    const nsCString& aSessionId)
+{
+  if (!mSession) {
+    return false;
+  }
+
+  mSession->CloseSession(aPromiseId,
+                         aSessionId.get(),
+                         aSessionId.Length());
+
+  return true;
+}
+
+bool
+GMPDecryptorChild::RecvRemoveSession(const uint32_t& aPromiseId,
+                                     const nsCString& aSessionId)
+{
+  if (!mSession) {
+    return false;
+  }
+
+  mSession->RemoveSession(aPromiseId,
+                          aSessionId.get(),
+                          aSessionId.Length());
+
+  return true;
+}
+
+bool
+GMPDecryptorChild::RecvSetServerCertificate(const uint32_t& aPromiseId,
+                                            InfallibleTArray<uint8_t>&& aServerCert)
+{
+  if (!mSession) {
+    return false;
+  }
+
+  mSession->SetServerCertificate(aPromiseId,
+                                 aServerCert.Elements(),
+                                 aServerCert.Length());
+
+  return true;
+}
+
+bool
+GMPDecryptorChild::RecvDecrypt(const uint32_t& aId,
+                               InfallibleTArray<uint8_t>&& aBuffer,
+                               const GMPDecryptionData& aMetadata)
+{
+  if (!mSession) {
+    return false;
+  }
+
+  // Note: the GMPBufferImpl created here is deleted when the GMP passes
+  // it back in the Decrypted() callback above.
+  GMPBufferImpl* buffer = new GMPBufferImpl(aId, aBuffer);
+
+  // |metadata| lifetime is managed by |buffer|.
+  GMPEncryptedBufferDataImpl* metadata = new GMPEncryptedBufferDataImpl(aMetadata);
+  buffer->SetMetadata(metadata);
+
+  mSession->Decrypt(buffer, metadata);
+  return true;
+}
+
+bool
+GMPDecryptorChild::RecvDecryptingComplete()
+{
+  // Reset |mSession| before calling DecryptingComplete(). We should not send
+  // any IPC messages during tear-down.
+  auto session = mSession;
+  mSession = nullptr;
+
+  if (!session) {
+    return false;
+  }
+
+  session->DecryptingComplete();
+
+  Unused << Send__delete__(this);
+
+  return true;
+}
+
+} // namespace gmp
+} // namespace mozilla
+
+// avoid redefined macro in unified build
+#undef ON_GMP_THREAD
+#undef CALL_ON_GMP_THREAD