Module: Barzahlen::Middleware

Defined in:
lib/barzahlen/middleware.rb

Defined Under Namespace

Classes: Signature

Class Method Summary collapse

Class Method Details

.generate_bz_signature(payment_key, request_host_header, request_method, request_date_header, request_host_path = "", request_query_string = "", request_body = "", request_idempotency_key = "") ⇒ Object 



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# File 'lib/barzahlen/middleware.rb', line 46

def self.generate_bz_signature(
  payment_key,
  request_host_header,
  request_method,
  request_date_header,
  request_host_path = "",
  request_query_string = "",
  request_body = "",
  request_idempotency_key = "")

  request_body_digest = OpenSSL::Digest.hexdigest("SHA256", request_body.to_s || "")

  raw_signature = "#{request_host_header}\n"\
                  "#{request_method.upcase}\n"\
                  "#{request_host_path}\n"\
                  "#{request_query_string}\n"\
                  "#{request_date_header}\n"\
                  "#{request_idempotency_key}\n"\
                  "#{request_body_digest}"

  OpenSSL::HMAC.hexdigest("SHA256", payment_key, raw_signature)
end