91 lines
3.3 KiB
C++
91 lines
3.3 KiB
C++
// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine Master
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// License Agreement.
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#ifndef WVCDM_CORE_CERTIFICATE_PROVISIONING_H_
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#define WVCDM_CORE_CERTIFICATE_PROVISIONING_H_
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#include <memory>
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#include <string>
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#include "crypto_session.h"
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#include "disallow_copy_and_assign.h"
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#include "license_protocol.pb.h"
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#include "metrics_collections.h"
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#include "oemcrypto_adapter.h"
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#include "service_certificate.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 FileSystem;
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class ServiceCertificate;
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class CertificateProvisioning {
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public:
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CertificateProvisioning(metrics::CryptoMetrics* metrics)
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: crypto_session_(CryptoSession::MakeCryptoSession(metrics)),
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cert_type_(kCertificateWidevine),
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service_certificate_(new ServiceCertificate()) {}
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~CertificateProvisioning() {}
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CdmResponseType Init(const std::string& service_certificate);
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// Construct a valid provisioning request.
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// The request will be sent to the provisioning server.
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CdmResponseType GetProvisioningRequest(SecurityLevel requested_security_level,
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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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const std::string& spoid,
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CdmProvisioningRequest* request,
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std::string* default_url);
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// Process the provisioning response.
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CdmResponseType HandleProvisioningResponse(
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FileSystem* file_system, const CdmProvisioningResponse& response,
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std::string* cert, std::string* wrapped_key);
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bool supports_core_messages() const { return supports_core_messages_; }
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// Helper methods
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// Extract serial number and system ID from a DRM Device certificate.
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// Either |serial_number| or |system_id| may be null, but not both.
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static bool ExtractDeviceInfo(const std::string& device_certificate,
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std::string* serial_number,
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uint32_t* system_id);
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// Removes json wrapping if applicable to extract the
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// SignedProvisioningMessage
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static bool ExtractAndDecodeSignedMessageForTesting(
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const std::string& provisioning_response, std::string* result);
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private:
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CdmResponseType SetSpoidParameter(
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const std::string& origin, const std::string& spoid,
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video_widevine::ProvisioningRequest* request);
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video_widevine::SignedProvisioningMessage::ProtocolVersion
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GetProtocolVersion();
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std::unique_ptr<CryptoSession> crypto_session_;
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CdmCertificateType cert_type_;
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std::unique_ptr<ServiceCertificate> service_certificate_;
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// Indicates whether OEMCrypto supports core messages, and whether the
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// CDM should expect a core message in the response. This is primarily
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// used to distinguish between v16+ OEMCrypto or an earlier version.
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// Assume core messages are supported, and check if OEMCrypto populates
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// the core message field when calling PrepAndSignProvisioningRequest().
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bool supports_core_messages_ = true;
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CORE_DISALLOW_COPY_AND_ASSIGN(CertificateProvisioning);
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};
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} // namespace wvcdm
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#endif // WVCDM_CORE_CERTIFICATE_PROVISIONING_H_
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