c5f576585b
Implements the optional setMediaDrmSession() method. To enble this, support was added to the core to report if a session ID is valid. As a consequence of this, in the tests for the CryptoPlugin, construction of the plugin must be deferred until all gMock expectations are set, as construction now calls into the CDM core. This is a merge of two changes from the Widevine CDM repo: http://go/wvgerrit/14083 Allow Setting of Session ID http://go/wvgerrit/14085 Check If Session ID Is Valid When Changing CryptoPlugin IDs Bug: 19570317 Change-Id: I7dbd777ce6efebd71fdb5e602663a0e35a48a9c4
137 lines
5.3 KiB
C++
137 lines
5.3 KiB
C++
// Copyright 2013 Google Inc. All Rights Reserved.
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#ifndef CDM_BASE_WV_CONTENT_DECRYPTION_MODULE_H_
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#define CDM_BASE_WV_CONTENT_DECRYPTION_MODULE_H_
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#include <UniquePtr.h>
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#include "lock.h"
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#include "timer.h"
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#include "wv_cdm_types.h"
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namespace wvcdm {
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class CdmClientPropertySet;
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class CdmEngine;
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class WvCdmEventListener;
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class WvContentDecryptionModule : public TimerHandler {
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public:
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WvContentDecryptionModule();
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virtual ~WvContentDecryptionModule();
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// Static methods
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static bool IsSupported(const std::string& init_data_type);
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static bool IsCenc(const std::string& init_data_type);
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static bool IsWebm(const std::string& init_data_type);
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// Session related methods
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virtual CdmResponseType OpenSession(const CdmKeySystem& key_system,
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CdmClientPropertySet* property_set,
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const std::string& origin,
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WvCdmEventListener* event_listener,
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CdmSessionId* session_id);
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virtual CdmResponseType CloseSession(const CdmSessionId& session_id);
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virtual bool IsOpenSession(const CdmSessionId& session_id);
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// Construct a valid license request.
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virtual CdmResponseType GenerateKeyRequest(const CdmSessionId& session_id,
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const CdmKeySetId& key_set_id,
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const std::string& init_data_type,
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const CdmInitData& init_data,
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const CdmLicenseType license_type,
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CdmAppParameterMap& app_parameters,
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CdmClientPropertySet* property_set,
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const std::string& origin,
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CdmKeyMessage* key_request,
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CdmKeyRequestType* key_request_type,
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std::string* server_url);
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// Accept license response and extract key info.
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virtual CdmResponseType AddKey(const CdmSessionId& session_id,
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const CdmKeyResponse& key_data,
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CdmKeySetId* key_set_id);
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// Setup keys for offline usage which were retrived in an earlier key request
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virtual CdmResponseType RestoreKey(const CdmSessionId& session_id,
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const CdmKeySetId& key_set_id);
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// Cancel session
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virtual CdmResponseType RemoveKeys(const CdmSessionId& session_id);
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// Query system information
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virtual CdmResponseType QueryStatus(CdmQueryMap* key_info);
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// Query session information
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virtual CdmResponseType QuerySessionStatus(const CdmSessionId& session_id,
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CdmQueryMap* key_info);
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// Query license information
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virtual CdmResponseType QueryKeyStatus(const CdmSessionId& session_id,
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CdmQueryMap* key_info);
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// Query session control information
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virtual CdmResponseType QueryKeyControlInfo(const CdmSessionId& session_id,
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CdmQueryMap* key_info);
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// Provisioning related methods
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virtual CdmResponseType GetProvisioningRequest(
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CdmCertificateType cert_type,
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const std::string& cert_authority,
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const std::string& origin,
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CdmProvisioningRequest* request,
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std::string* default_url);
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virtual CdmResponseType HandleProvisioningResponse(
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const std::string& origin,
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CdmProvisioningResponse& response,
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std::string* cert,
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std::string* wrapped_key);
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virtual CdmResponseType Unprovision(CdmSecurityLevel level,
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const std::string& origin);
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// Secure stop related methods
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virtual CdmResponseType GetUsageInfo(const std::string& app_id,
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CdmUsageInfo* usage_info);
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virtual CdmResponseType GetUsageInfo(const std::string& app_id,
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const CdmSecureStopId& ssid,
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CdmUsageInfo* usage_info);
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virtual CdmResponseType ReleaseAllUsageInfo(const std::string& app_id);
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virtual CdmResponseType ReleaseUsageInfo(
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const CdmUsageInfoReleaseMessage& message);
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// Accept encrypted buffer and decrypt data.
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// Decryption parameters that need to be specified are
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// is_encrypted, is_secure, key_id, encrypt_buffer, encrypt_length,
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// iv, block_offset, decrypt_buffer, decrypt_buffer_length,
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// decrypt_buffer_offset and subsample_flags
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virtual CdmResponseType Decrypt(const CdmSessionId& session_id,
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bool validate_key_id,
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const CdmDecryptionParameters& parameters);
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virtual void NotifyResolution(const CdmSessionId& session_id, uint32_t width,
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uint32_t height);
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private:
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uint32_t GenerateSessionSharingId();
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// timer related methods to drive policy decisions
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void EnablePolicyTimer();
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void DisablePolicyTimer(bool force);
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void OnTimerEvent();
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static Lock session_sharing_id_generation_lock_;
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Lock policy_timer_lock_;
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Timer policy_timer_;
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// instance variables
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UniquePtr<CdmEngine> cdm_engine_;
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CORE_DISALLOW_COPY_AND_ASSIGN(WvContentDecryptionModule);
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};
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} // namespace wvcdm
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#endif // CDM_BASE_WV_CONTENT_DECRYPTION_MODULE_H_
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