demarches-normaliennes/app/services/bill_signature_service.rb

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