138 lines
4.8 KiB
C++
138 lines
4.8 KiB
C++
// Copyright 2013 Google Inc. All Rights Reserved.
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#ifndef WVCDM_CORE_CDM_ENGINE_H_
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#define WVCDM_CORE_CDM_ENGINE_H_
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#include "certificate_provisioning.h"
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#include "initialization_data.h"
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#include "oemcrypto_adapter.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 CdmSession;
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class CryptoEngine;
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class WvCdmEventListener;
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typedef std::map<CdmSessionId, CdmSession*> CdmSessionMap;
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typedef std::map<CdmKeySetId, CdmSessionId> CdmReleaseKeySetMap;
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class CdmEngine {
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public:
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CdmEngine();
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virtual ~CdmEngine();
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// Session related methods
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CdmResponseType OpenSession(const CdmKeySystem& key_system,
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const CdmClientPropertySet* property_set,
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CdmSessionId* session_id);
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CdmResponseType CloseSession(const CdmSessionId& session_id);
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CdmResponseType OpenKeySetSession(const CdmKeySetId& key_set_id);
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CdmResponseType CloseKeySetSession(const CdmKeySetId& key_set_id);
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// License related methods
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// Construct a valid license request
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CdmResponseType GenerateKeyRequest(const CdmSessionId& session_id,
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const CdmKeySetId& key_set_id,
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const InitializationData& init_data,
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const CdmLicenseType license_type,
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CdmAppParameterMap& app_parameters,
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CdmKeyMessage* key_request,
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std::string* server_url);
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// Accept license response and extract key info.
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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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CdmResponseType RestoreKey(const CdmSessionId& session_id,
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const CdmKeySetId& key_set_id);
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CdmResponseType CancelKeyRequest(const CdmSessionId& session_id);
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// Construct valid renewal request for the current session keys.
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CdmResponseType GenerateRenewalRequest(const CdmSessionId& session_id,
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CdmKeyMessage* key_request,
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std::string* server_url);
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// Accept renewal response and update key info.
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CdmResponseType RenewKey(const CdmSessionId& session_id,
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const CdmKeyResponse& key_data);
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// Query system information
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CdmResponseType QueryStatus(CdmQueryMap* 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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CdmResponseType QueryKeyStatus(const CdmSessionId& session_id,
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CdmQueryMap* key_info);
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// Query seesion control information
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CdmResponseType QueryKeyControlInfo(const CdmSessionId& session_id,
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CdmQueryMap* key_info);
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// Provisioning related methods
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CdmResponseType GetProvisioningRequest(
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CdmCertificateType cert_type,
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const std::string& cert_authority,
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CdmProvisioningRequest* request,
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std::string* default_url);
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CdmResponseType HandleProvisioningResponse(
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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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CdmResponseType Unprovision(CdmSecurityLevel security_level);
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// Usage related methods for streaming licenses
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CdmResponseType GetUsageInfo(CdmUsageInfo* usage_info);
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CdmResponseType ReleaseUsageInfo(const CdmUsageInfoReleaseMessage& message);
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// Decryption and key related methods
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// Accept encrypted buffer and return decrypted data.
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CdmResponseType Decrypt(const CdmSessionId& session_id,
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const CdmDecryptionParameters& parameters);
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size_t SessionSize() const { return sessions_.size(); }
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// Is the key known to any session?
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bool IsKeyLoaded(const KeyId& key_id);
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bool FindSessionForKey(const KeyId& key_id, CdmSessionId* sessionId);
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// Event listener related methods
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bool AttachEventListener(const CdmSessionId& session_id,
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WvCdmEventListener* listener);
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bool DetachEventListener(const CdmSessionId& session_id,
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WvCdmEventListener* listener);
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// Timer expiration method
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void OnTimerEvent();
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private:
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// private methods
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bool ValidateKeySystem(const CdmKeySystem& key_system);
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void OnKeyReleaseEvent(const CdmKeySetId& key_set_id);
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// instance variables
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CdmSessionMap sessions_;
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CdmReleaseKeySetMap release_key_sets_;
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CertificateProvisioning cert_provisioning_;
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SecurityLevel cert_provisioning_requested_security_level_;
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CdmSession* usage_session_;
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int64_t last_usage_information_update_time;
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CORE_DISALLOW_COPY_AND_ASSIGN(CdmEngine);
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};
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} // namespace wvcdm
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#endif // WVCDM_CORE_CDM_ENGINE_H_
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