blob: 652c3d697547b123565128d83df616a090b6bc94 [file] [log] [blame]
// Copyright 2013 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 <stddef.h>
#include <stdint.h>
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "media/base/content_decryption_module.h"
#include "media/blink/new_session_cdm_result_promise.h"
#include "third_party/blink/public/platform/web_content_decryption_module_session.h"
#include "third_party/blink/public/platform/web_string.h"
namespace media {
class CdmSessionAdapter;
class WebContentDecryptionModuleSessionImpl
: public blink::WebContentDecryptionModuleSession {
const scoped_refptr<CdmSessionAdapter>& adapter);
~WebContentDecryptionModuleSessionImpl() override;
// blink::WebContentDecryptionModuleSession implementation.
void SetClientInterface(Client* client) override;
blink::WebString SessionId() const override;
void InitializeNewSession(
EmeInitDataType init_data_type,
const unsigned char* initData,
size_t initDataLength,
blink::WebEncryptedMediaSessionType session_type,
blink::WebContentDecryptionModuleResult result) override;
void Load(const blink::WebString& session_id,
blink::WebContentDecryptionModuleResult result) override;
void Update(const uint8_t* response,
size_t response_length,
blink::WebContentDecryptionModuleResult result) override;
void Close(blink::WebContentDecryptionModuleResult result) override;
void Remove(blink::WebContentDecryptionModuleResult result) override;
// Callbacks.
void OnSessionMessage(CdmMessageType message_type,
const std::vector<uint8_t>& message);
void OnSessionKeysChange(bool has_additional_usable_key,
CdmKeysInfo keys_info);
void OnSessionExpirationUpdate(base::Time new_expiry_time);
void OnSessionClosed();
// Called when a new session is created or loaded. |status| is set as
// appropriate, depending on whether the session already exists or not.
void OnSessionInitialized(const std::string& session_id,
SessionInitStatus* status);
scoped_refptr<CdmSessionAdapter> adapter_;
// Non-owned pointer.
Client* client_;
// Session ID is the app visible ID for this session generated by the CDM.
// This value is not set until the CDM resolves the initializeNewSession()
// promise.
std::string session_id_;
// Keep track of whether the session has been closed or not. The session
// may be closed as a result of an application calling close(), or the CDM
// may close the session at any point.
// |has_close_been_called_| is used to keep track of whether close() has
// been called or not. |is_closed_| is used to keep track of whether the
// close event has been received or not.
bool has_close_been_called_;
bool is_closed_;
// Keep track of whether this is a persistent session or not.
bool is_persistent_session_;
base::ThreadChecker thread_checker_;
// Since promises will live until they are fired, use a weak reference when
// creating a promise in case this class disappears before the promise
// actually fires.
base::WeakPtrFactory<WebContentDecryptionModuleSessionImpl> weak_ptr_factory_{
} // namespace media