85 lines
2.1 KiB
Ruby
85 lines
2.1 KiB
Ruby
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class BillSignature < ApplicationRecord
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has_many :dossier_operation_logs
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has_one_attached :serialized
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has_one_attached :signature
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validate :check_bill_digest
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validate :check_serialized_bill_contents
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validate :check_signature_contents
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def self.build_with_operations(operations, day)
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bill = new(dossier_operation_logs: operations)
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bill.serialize_operations(day)
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bill
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end
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def serialize_operations(day)
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self.serialized.attach(
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io: StringIO.new(operations_bill_json),
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filename: "demarches-simplifiees-operations-#{day.to_date.iso8601}.json",
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content_type: 'application/json',
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metadata: { virus_scan_result: ActiveStorage::VirusScanner::SAFE }
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)
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self.digest = operations_bill_digest
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end
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def operations_bill
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dossier_operation_logs.map { |op| [op.id.to_s, op.digest] }.to_h
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end
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def operations_bill_json
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operations_bill.to_json
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end
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def operations_bill_digest
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Digest::SHA256.hexdigest(operations_bill_json)
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end
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def set_signature(signature, day)
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self.signature.attach(
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io: StringIO.new(signature),
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filename: "demarches-simplifiees-signature-#{day.to_date.iso8601}.der",
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content_type: 'application/x-x509-ca-cert'
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)
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end
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# Validations
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def check_bill_digest
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if self.digest != self.operations_bill_digest
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errors.add(:digest)
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end
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end
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def check_serialized_bill_contents
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if !self.serialized.attached?
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errors.add(:serialized, :blank)
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return
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end
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if JSON.parse(self.serialized.download) != self.operations_bill
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errors.add(:serialized)
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end
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end
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def check_signature_contents
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if !self.signature.attached?
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errors.add(:signature, :blank)
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return
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end
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timestamp_signature_date = ASN1::Timestamp.signature_time(self.signature.download)
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if timestamp_signature_date > Time.zone.now
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errors.add(:signature, :invalid_date)
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end
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timestamp_signed_digest = ASN1::Timestamp.signed_digest(self.signature.download)
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if timestamp_signed_digest != self.digest
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errors.add(:signature)
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end
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end
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end
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