44 lines
1.5 KiB
Ruby
44 lines
1.5 KiB
Ruby
# frozen_string_literal: true
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class BillSignatureService
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def self.sign_operations(operations, day)
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return unless Certigna::API.enabled?
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bill = BillSignature.build_with_operations(operations, day)
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signature = Certigna::API.timestamp(bill.digest)
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bill.set_signature(signature, day)
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bill.save!
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ensure_valid_signature(bill.reload)
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rescue => error
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operations.each { |o| o.update(bill_signature: nil) }
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bill&.destroy
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raise error
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end
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def self.ensure_valid_signature(bill)
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Dir.mktmpdir do |dir|
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operations_path = File.join(dir, 'operations')
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File.write(operations_path, bill.serialized.download, mode: 'wb')
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signature_path = File.join(dir, 'signature')
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File.write(signature_path, bill.signature.download, mode: 'wb')
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authorities_path = Rails.application.config.root.join('app', 'lib', 'certigna', 'authorities.crt').to_s
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verify_cmd = "openssl ts -verify -CAfile #{authorities_path.shellescape} -data #{operations_path.shellescape} -in #{signature_path.shellescape} -token_in"
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openssl_errors = nil
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openssl_output = nil
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process_status = Open3.popen3(verify_cmd) do |_stdin, stdout, stderr, wait_thr|
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openssl_errors = stderr.read
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openssl_output = stdout.read
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wait_thr.value
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end
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if !process_status.success? || openssl_output&.strip != 'Verification: OK'
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raise StandardError, "openssl verification failed: #{openssl_errors}"
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end
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end
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end
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end
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