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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/media/crypto/proxy_media_keys.h"
#include <vector>
#include "base/basictypes.h"
#include "base/logging.h"
#include "base/stl_util.h"
#include "content/renderer/media/crypto/cdm_initialized_promise.h"
#include "content/renderer/media/crypto/renderer_cdm_manager.h"
#include "media/base/cdm_key_information.h"
#include "media/base/cdm_promise.h"
#include "media/base/key_systems.h"
namespace content {
void ProxyMediaKeys::Create(
const std::string& key_system,
const GURL& security_origin,
bool use_hw_secure_codecs,
RendererCdmManager* manager,
const media::SessionMessageCB& session_message_cb,
const media::SessionClosedCB& session_closed_cb,
const media::LegacySessionErrorCB& legacy_session_error_cb,
const media::SessionKeysChangeCB& session_keys_change_cb,
const media::SessionExpirationUpdateCB& session_expiration_update_cb,
const media::CdmCreatedCB& cdm_created_cb) {
DCHECK(manager);
scoped_ptr<ProxyMediaKeys> proxy_media_keys(new ProxyMediaKeys(
manager, session_message_cb, session_closed_cb, legacy_session_error_cb,
session_keys_change_cb, session_expiration_update_cb));
// ProxyMediaKeys ownership passed to the promise, but keep a copy in order
// to call InitializeCdm().
ProxyMediaKeys* proxy_media_keys_copy = proxy_media_keys.get();
scoped_ptr<CdmInitializedPromise> promise(
new CdmInitializedPromise(cdm_created_cb, proxy_media_keys.Pass()));
proxy_media_keys_copy->InitializeCdm(key_system, security_origin,
use_hw_secure_codecs, promise.Pass());
}
ProxyMediaKeys::~ProxyMediaKeys() {
manager_->DestroyCdm(cdm_id_);
manager_->UnregisterMediaKeys(cdm_id_);
cdm_promise_adapter_.Clear();
}
void ProxyMediaKeys::SetServerCertificate(
const std::vector<uint8_t>& certificate,
scoped_ptr<media::SimpleCdmPromise> promise) {
uint32_t promise_id = cdm_promise_adapter_.SavePromise(promise.Pass());
manager_->SetServerCertificate(cdm_id_, promise_id, certificate);
}
void ProxyMediaKeys::CreateSessionAndGenerateRequest(
SessionType session_type,
media::EmeInitDataType init_data_type,
const std::vector<uint8_t>& init_data,
scoped_ptr<media::NewSessionCdmPromise> promise) {
if (session_type != media::MediaKeys::TEMPORARY_SESSION) {
promise->reject(NOT_SUPPORTED_ERROR, 0,
"Only the temporary session type is supported.");
return;
}
// TODO(xhwang): Move these checks up to blink and DCHECK here.
// See http://crbug.com/342510
CdmHostMsg_CreateSession_InitDataType create_session_init_data_type =
INIT_DATA_TYPE_WEBM;
switch (init_data_type) {
case media::EmeInitDataType::CENC:
create_session_init_data_type = INIT_DATA_TYPE_CENC;
break;
case media::EmeInitDataType::WEBM:
create_session_init_data_type = INIT_DATA_TYPE_WEBM;
break;
case media::EmeInitDataType::KEYIDS:
case media::EmeInitDataType::UNKNOWN:
DLOG(ERROR) << "Unsupported EME CreateSession init data type";
promise->reject(NOT_SUPPORTED_ERROR, 0,
"Unsupported EME CreateSession init data type");
return;
}
uint32_t promise_id = cdm_promise_adapter_.SavePromise(promise.Pass());
manager_->CreateSessionAndGenerateRequest(
cdm_id_, promise_id, create_session_init_data_type, init_data);
}
void ProxyMediaKeys::LoadSession(
SessionType session_type,
const std::string& session_id,
scoped_ptr<media::NewSessionCdmPromise> promise) {
// TODO(xhwang): Check key system and platform support for LoadSession in
// blink and add NOTREACHED() here. See http://crbug.com/384152
DLOG(ERROR) << "ProxyMediaKeys doesn't support session loading.";
promise->reject(NOT_SUPPORTED_ERROR, 0, "LoadSession() is not supported.");
}
void ProxyMediaKeys::UpdateSession(
const std::string& session_id,
const std::vector<uint8_t>& response,
scoped_ptr<media::SimpleCdmPromise> promise) {
uint32_t promise_id = cdm_promise_adapter_.SavePromise(promise.Pass());
manager_->UpdateSession(cdm_id_, promise_id, session_id, response);
}
void ProxyMediaKeys::CloseSession(const std::string& session_id,
scoped_ptr<media::SimpleCdmPromise> promise) {
uint32_t promise_id = cdm_promise_adapter_.SavePromise(promise.Pass());
manager_->CloseSession(cdm_id_, promise_id, session_id);
}
void ProxyMediaKeys::RemoveSession(
const std::string& session_id,
scoped_ptr<media::SimpleCdmPromise> promise) {
// TODO(xhwang): Check key system and platform support for LoadSession in
// blink and add NOTREACHED() here. See http://crbug.com/384152
promise->reject(NOT_SUPPORTED_ERROR, 0, "RemoveSession() not supported.");
}
media::CdmContext* ProxyMediaKeys::GetCdmContext() {
return this;
}
media::Decryptor* ProxyMediaKeys::GetDecryptor() {
return nullptr;
}
int ProxyMediaKeys::GetCdmId() const {
return cdm_id_;
}
void ProxyMediaKeys::OnSessionMessage(
const std::string& session_id,
media::MediaKeys::MessageType message_type,
const std::vector<uint8_t>& message,
const GURL& legacy_destination_url) {
session_message_cb_.Run(session_id, message_type, message,
legacy_destination_url);
}
void ProxyMediaKeys::OnSessionClosed(const std::string& session_id) {
session_closed_cb_.Run(session_id);
}
void ProxyMediaKeys::OnLegacySessionError(const std::string& session_id,
media::MediaKeys::Exception exception,
uint32_t system_code,
const std::string& error_message) {
legacy_session_error_cb_.Run(session_id, exception, system_code,
error_message);
}
void ProxyMediaKeys::OnSessionKeysChange(const std::string& session_id,
bool has_additional_usable_key,
media::CdmKeysInfo keys_info) {
session_keys_change_cb_.Run(session_id, has_additional_usable_key,
keys_info.Pass());
}
void ProxyMediaKeys::OnSessionExpirationUpdate(
const std::string& session_id,
const base::Time& new_expiry_time) {
session_expiration_update_cb_.Run(session_id, new_expiry_time);
}
void ProxyMediaKeys::OnPromiseResolved(uint32_t promise_id) {
cdm_promise_adapter_.ResolvePromise(promise_id);
}
void ProxyMediaKeys::OnPromiseResolvedWithSession(
uint32_t promise_id,
const std::string& session_id) {
cdm_promise_adapter_.ResolvePromise(promise_id, session_id);
}
void ProxyMediaKeys::OnPromiseRejected(uint32_t promise_id,
media::MediaKeys::Exception exception,
uint32_t system_code,
const std::string& error_message) {
cdm_promise_adapter_.RejectPromise(promise_id, exception, system_code,
error_message);
}
ProxyMediaKeys::ProxyMediaKeys(
RendererCdmManager* manager,
const media::SessionMessageCB& session_message_cb,
const media::SessionClosedCB& session_closed_cb,
const media::LegacySessionErrorCB& legacy_session_error_cb,
const media::SessionKeysChangeCB& session_keys_change_cb,
const media::SessionExpirationUpdateCB& session_expiration_update_cb)
: manager_(manager),
session_message_cb_(session_message_cb),
session_closed_cb_(session_closed_cb),
legacy_session_error_cb_(legacy_session_error_cb),
session_keys_change_cb_(session_keys_change_cb),
session_expiration_update_cb_(session_expiration_update_cb) {
cdm_id_ = manager->RegisterMediaKeys(this);
}
void ProxyMediaKeys::InitializeCdm(
const std::string& key_system,
const GURL& security_origin,
bool use_hw_secure_codecs,
scoped_ptr<media::SimpleCdmPromise> promise) {
uint32_t promise_id = cdm_promise_adapter_.SavePromise(promise.Pass());
manager_->InitializeCdm(cdm_id_, promise_id, this, key_system,
security_origin, use_hw_secure_codecs);
}
} // namespace content
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