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// Copyright 2017 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef STARBOARD_SHARED_WIN32_DRM_SYSTEM_PLAYREADY_H_
#define STARBOARD_SHARED_WIN32_DRM_SYSTEM_PLAYREADY_H_
#include <mfapi.h>
#include <mfidl.h>
#include <wrl.h>
#include <wrl/client.h>
#include <functional>
#include <map>
#include <string>
#include "starboard/common/mutex.h"
#include "starboard/common/ref_counted.h"
#include "starboard/shared/starboard/drm/drm_system_internal.h"
#include "starboard/shared/starboard/thread_checker.h"
namespace starboard {
namespace shared {
namespace win32 {
// Adapts PlayReady decryption module to Starboard's |SbDrmSystem|.
class DrmSystemPlayready : public SbDrmSystemPrivate {
public:
typedef std::function<bool()> EnableOutputProtectionFunc;
class License : public RefCountedThreadSafe<License> {
public:
static scoped_refptr<License> Create(const void* initialization_data,
int initialization_data_size);
virtual ~License() {}
virtual GUID key_id() const = 0;
virtual bool usable() const = 0;
virtual std::string license_challenge() const = 0;
virtual Microsoft::WRL::ComPtr<IMFTransform> decryptor() = 0;
virtual void UpdateLicense(const void* license, int license_size) = 0;
virtual bool IsHDCPRequired() = 0;
};
DrmSystemPlayready(
void* context,
EnableOutputProtectionFunc enable_output_protection_func,
SbDrmSessionUpdateRequestFunc session_update_request_callback,
SbDrmSessionUpdatedFunc session_updated_callback,
SbDrmSessionKeyStatusesChangedFunc key_statuses_changed_callback,
SbDrmSessionClosedFunc session_closed_callback);
~DrmSystemPlayready() override;
static bool IsKeySystemSupported(const char* key_system);
// From |SbDrmSystemPrivate|.
void GenerateSessionUpdateRequest(int ticket,
const char* type,
const void* initialization_data,
int initialization_data_size) override;
void UpdateSession(int ticket,
const void* key,
int key_size,
const void* session_id,
int session_id_size) override;
void CloseSession(const void* session_id, int session_id_size) override;
DecryptStatus Decrypt(InputBuffer* buffer) override;
// Used by audio and video decoders to retrieve the decryptors.
scoped_refptr<License> GetLicense(const uint8_t* key_id, int key_id_size);
void OnUwpResume();
bool IsServerCertificateUpdatable() override { return false; }
void UpdateServerCertificate(int ticket,
const void* certificate,
int certificate_size) override {
}
const void* GetMetrics(int* size) override { return NULL; }
private:
std::string GenerateAndAdvanceSessionId();
// Note: requires mutex_ to be held
void ReportKeyStatusChanged_Locked(const std::string& session_id);
::starboard::shared::starboard::ThreadChecker thread_checker_;
void* context_;
const EnableOutputProtectionFunc enable_output_protection_func_;
const SbDrmSessionUpdateRequestFunc session_update_request_callback_;
const SbDrmSessionUpdatedFunc session_updated_callback_;
const SbDrmSessionKeyStatusesChangedFunc key_statuses_changed_callback_;
const SbDrmSessionClosedFunc session_closed_callback_;
int current_session_id_ = 1;
std::map<std::string, scoped_refptr<License> > pending_requests_;
// |successful_requests_| can be accessed from more than one thread. Guard
// it by a mutex.
Mutex mutex_;
struct LicenseInfo {
LicenseInfo(SbDrmKeyStatus status, const scoped_refptr<License>& license)
: status_(status), license_(license) {}
LicenseInfo() : status_(kSbDrmKeyStatusError) {}
SbDrmKeyStatus status_;
scoped_refptr<License> license_;
};
std::map<std::string, LicenseInfo> successful_requests_;
};
} // namespace win32
} // namespace shared
} // namespace starboard
#endif // STARBOARD_SHARED_WIN32_DRM_SYSTEM_PLAYREADY_H_