127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
// Copyright 2012 Google Inc. All Rights Reserved.
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#ifndef WVCDM_CORE_LICENSE_H_
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#define WVCDM_CORE_LICENSE_H_
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#include <set>
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#include "initialization_data.h"
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#include "license_protocol.pb.h"
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#include "scoped_ptr.h"
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#include "wv_cdm_types.h"
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namespace video_widevine {
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class SignedMessage;
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class LicenseRequest;
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} // namespace video_widevine
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namespace wvcdm {
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class Clock;
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class CryptoSession;
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class PolicyEngine;
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class ServiceCertificate;
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class CryptoKey;
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class CdmLicense {
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public:
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CdmLicense(const CdmSessionId& session_id);
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virtual ~CdmLicense();
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virtual bool Init(
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ServiceCertificate* service_certificate, const std::string& client_token,
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CdmClientTokenType client_token_type, const std::string& device_id,
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CryptoSession* session, PolicyEngine* policy_engine);
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virtual CdmResponseType PrepareKeyRequest(
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const InitializationData& init_data, CdmLicenseType license_type,
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const CdmAppParameterMap& app_parameters, CdmKeyMessage* signed_request,
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std::string* server_url);
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virtual CdmResponseType PrepareKeyUpdateRequest(
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bool is_renewal, const CdmAppParameterMap& app_parameters,
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CdmKeyMessage* signed_request, std::string* server_url);
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virtual CdmResponseType HandleKeyResponse(
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const CdmKeyResponse& license_response);
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virtual CdmResponseType HandleKeyUpdateResponse(
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bool is_renewal, const CdmKeyResponse& license_response);
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virtual CdmResponseType HandleSubLicense(const InitializationData& init_data);
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virtual bool RestoreOfflineLicense(
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const CdmKeyMessage& license_request,
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const CdmKeyResponse& license_response,
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const CdmKeyResponse& license_renewal_response,
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int64_t playback_start_time, int64_t last_playback_time,
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int64_t grace_period_end_time);
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virtual bool RestoreLicenseForRelease(const CdmKeyMessage& license_request,
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const CdmKeyResponse& license_response);
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virtual bool IsKeyLoaded(const KeyId& key_id);
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virtual std::string provider_session_token() {
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return provider_session_token_;
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}
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virtual bool is_offline() {
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return is_offline_;
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}
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private:
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CdmResponseType HandleKeyErrorResponse(
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const video_widevine::SignedMessage& signed_message);
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bool GetClientTokenType(
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video_widevine::ClientIdentification::TokenType* token_type);
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CdmResponseType PrepareClientId(
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const CdmAppParameterMap& app_parameters,
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video_widevine::LicenseRequest* license_request);
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CdmResponseType PrepareContentId(
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const InitializationData& init_data, CdmLicenseType license_type,
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const std::string& request_id,
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video_widevine::LicenseRequest* license_request);
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template <typename T>
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bool SetTypeAndId(CdmLicenseType license_type,
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const std::string& request_id, T* content_id);
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CryptoSession* crypto_session_;
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PolicyEngine* policy_engine_;
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std::string server_url_;
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std::string client_token_;
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CdmClientTokenType client_token_type_;
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std::string device_id_;
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const CdmSessionId session_id_;
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bool initialized_;
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std::set<KeyId> loaded_keys_;
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std::string provider_session_token_;
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bool renew_with_client_id_;
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bool is_offline_;
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// Used to encrypt ClientIdentification message
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ServiceCertificate* service_certificate_;
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// Used for certificate based licensing
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CdmKeyMessage key_request_;
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scoped_ptr<Clock> clock_;
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// For testing
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// CdmLicense takes ownership of the clock.
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CdmLicense(const CdmSessionId& session_id, Clock* clock);
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// For sublicense key embedding. This key array will be initilized with any
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// sub session keys we may have received in a license response. These keys
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// may be used to support key rotation.
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std::vector<CryptoKey> sub_session_key_array_;
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#if defined(UNIT_TEST)
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friend class CdmLicenseTest;
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#endif
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CORE_DISALLOW_COPY_AND_ASSIGN(CdmLicense);
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};
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} // namespace wvcdm
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#endif // WVCDM_CORE_LICENSE_H_
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