fddbc89136
Bug: 19771437 It is a merge of below CLs from Widevine CDM repo: Clean up CdmSession and PolicyEngine testing injection https://widevine-internal-review.googlesource.com/#/c/13700 Refactor WvCdmEventListener handling https://widevine-internal-review.googlesource.com/#/c/13702 Change-Id: I356b90000c056113d394926862b859aab380d305
130 lines
4.9 KiB
C++
130 lines
4.9 KiB
C++
// Copyright 2013 Google Inc. All Rights Reserved.
|
|
|
|
#ifndef CDM_BASE_WV_CONTENT_DECRYPTION_MODULE_H_
|
|
#define CDM_BASE_WV_CONTENT_DECRYPTION_MODULE_H_
|
|
|
|
#include <UniquePtr.h>
|
|
|
|
#include "lock.h"
|
|
#include "timer.h"
|
|
#include "wv_cdm_types.h"
|
|
|
|
namespace wvcdm {
|
|
|
|
class CdmClientPropertySet;
|
|
class CdmEngine;
|
|
class WvCdmEventListener;
|
|
|
|
class WvContentDecryptionModule : public TimerHandler {
|
|
public:
|
|
WvContentDecryptionModule();
|
|
virtual ~WvContentDecryptionModule();
|
|
|
|
// Static methods
|
|
static bool IsSupported(const std::string& init_data_type);
|
|
static bool IsCenc(const std::string& init_data_type);
|
|
static bool IsWebm(const std::string& init_data_type);
|
|
|
|
// Session related methods
|
|
virtual CdmResponseType OpenSession(const CdmKeySystem& key_system,
|
|
CdmClientPropertySet* property_set,
|
|
WvCdmEventListener* event_listener,
|
|
CdmSessionId* session_id);
|
|
virtual CdmResponseType CloseSession(const CdmSessionId& session_id);
|
|
|
|
// Construct a valid license request.
|
|
virtual CdmResponseType GenerateKeyRequest(const CdmSessionId& session_id,
|
|
const CdmKeySetId& key_set_id,
|
|
const std::string& init_data_type,
|
|
const CdmInitData& init_data,
|
|
const CdmLicenseType license_type,
|
|
CdmAppParameterMap& app_parameters,
|
|
CdmClientPropertySet* property_set,
|
|
CdmKeyMessage* key_request,
|
|
std::string* server_url);
|
|
|
|
// Accept license response and extract key info.
|
|
virtual CdmResponseType AddKey(const CdmSessionId& session_id,
|
|
const CdmKeyResponse& key_data,
|
|
CdmKeySetId* key_set_id);
|
|
|
|
// Setup keys for offline usage which were retrived in an earlier key request
|
|
virtual CdmResponseType RestoreKey(const CdmSessionId& session_id,
|
|
const CdmKeySetId& key_set_id);
|
|
|
|
// Cancel session
|
|
virtual CdmResponseType RemoveKeys(const CdmSessionId& session_id);
|
|
|
|
// Query system information
|
|
virtual CdmResponseType QueryStatus(CdmQueryMap* key_info);
|
|
|
|
// Query session information
|
|
virtual CdmResponseType QuerySessionStatus(const CdmSessionId& session_id,
|
|
CdmQueryMap* key_info);
|
|
|
|
// Query license information
|
|
virtual CdmResponseType QueryKeyStatus(const CdmSessionId& session_id,
|
|
CdmQueryMap* key_info);
|
|
|
|
// Query session control information
|
|
virtual CdmResponseType QueryKeyControlInfo(const CdmSessionId& session_id,
|
|
CdmQueryMap* key_info);
|
|
|
|
// Provisioning related methods
|
|
virtual CdmResponseType GetProvisioningRequest(
|
|
CdmCertificateType cert_type,
|
|
const std::string& cert_authority,
|
|
CdmProvisioningRequest* request,
|
|
std::string* default_url);
|
|
|
|
virtual CdmResponseType HandleProvisioningResponse(
|
|
CdmProvisioningResponse& response,
|
|
std::string* cert,
|
|
std::string* wrapped_key);
|
|
|
|
virtual CdmResponseType Unprovision(CdmSecurityLevel level);
|
|
|
|
// Secure stop related methods
|
|
virtual CdmResponseType GetUsageInfo(const std::string& app_id,
|
|
CdmUsageInfo* usage_info);
|
|
virtual CdmResponseType GetUsageInfo(const std::string& app_id,
|
|
const CdmSecureStopId& ssid,
|
|
CdmUsageInfo* usage_info);
|
|
virtual CdmResponseType ReleaseAllUsageInfo(const std::string& app_id);
|
|
virtual CdmResponseType ReleaseUsageInfo(
|
|
const CdmUsageInfoReleaseMessage& message);
|
|
|
|
// Accept encrypted buffer and decrypt data.
|
|
// Decryption parameters that need to be specified are
|
|
// is_encrypted, is_secure, key_id, encrypt_buffer, encrypt_length,
|
|
// iv, block_offset, decrypt_buffer, decrypt_buffer_length,
|
|
// decrypt_buffer_offset and subsample_flags
|
|
virtual CdmResponseType Decrypt(const CdmSessionId& session_id,
|
|
bool validate_key_id,
|
|
const CdmDecryptionParameters& parameters);
|
|
|
|
virtual void NotifyResolution(const CdmSessionId& session_id, uint32_t width,
|
|
uint32_t height);
|
|
|
|
private:
|
|
uint32_t GenerateSessionSharingId();
|
|
|
|
// timer related methods to drive policy decisions
|
|
void EnablePolicyTimer();
|
|
void DisablePolicyTimer(bool force);
|
|
void OnTimerEvent();
|
|
|
|
static Lock session_sharing_id_generation_lock_;
|
|
Lock policy_timer_lock_;
|
|
Timer policy_timer_;
|
|
|
|
// instance variables
|
|
UniquePtr<CdmEngine> cdm_engine_;
|
|
|
|
CORE_DISALLOW_COPY_AND_ASSIGN(WvContentDecryptionModule);
|
|
};
|
|
|
|
} // namespace wvcdm
|
|
|
|
#endif // CDM_BASE_WV_CONTENT_DECRYPTION_MODULE_H_
|