Class: GenerateJwtToken

Inherits:
Object
  • Object
show all
Defined in:
lib/AuthenticationSDK/authentication/jwt/JwtToken.rb

Instance Method Summary collapse

Instance Method Details

#getJwtBody(request_type, gmtDatetime, merchantconfig_obj, isResponseMLEForApi = false) ⇒ Object 



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# File 'lib/AuthenticationSDK/authentication/jwt/JwtToken.rb', line 55

def getJwtBody(request_type, gmtDatetime, merchantconfig_obj, isResponseMLEForApi=false)
  jwtBody = "{\n "
  
  if request_type == Constants::POST_REQUEST_TYPE || request_type == Constants::PUT_REQUEST_TYPE || request_type == Constants::PATCH_REQUEST_TYPE
    payload = merchantconfig_obj.requestJsonData

    # Note: Digest is not passed for GET calls
    digest = DigestGeneration.new.generateDigest(payload)
    jwtBody = jwtBody + "\"digest\":\"" + digest + "\", \"digestAlgorithm\":\"SHA-256\", \"iat\":" + Time.parse(gmtDatetime).to_i.to_s
  elsif request_type == Constants::GET_REQUEST_TYPE || request_type == Constants::DELETE_REQUEST_TYPE
    jwtBody = jwtBody + "\"iat\":" + Time.parse(gmtDatetime).to_i.to_s
  else
    raise StandardError.new(Constants::ERROR_PREFIX + Constants::INVALID_REQUEST_TYPE_METHOD)
  end

  if isResponseMLEForApi
    mleKid = MLEUtility.validate_and_auto_extract_response_mle_kid(merchantconfig_obj)
    jwtBody = jwtBody + ", \"v-c-response-mle-kid\":\"" + mleKid + "\""
  end

  jwtBody = jwtBody + "\n}"
end

#getToken(merchantconfig_obj, gmtDatetime, isResponseMLEForApi) ⇒ Object

JWT Token-generated based on the Request type



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# File 'lib/AuthenticationSDK/authentication/jwt/JwtToken.rb', line 20

def getToken(merchantconfig_obj, gmtDatetime, isResponseMLEForApi)
  @log_obj = Log.new merchantconfig_obj.log_config, "JwtToken"

  jwtBody = ''
  request_type = merchantconfig_obj.requestType.upcase
  
  jwtBody = getJwtBody(request_type, gmtDatetime, merchantconfig_obj, isResponseMLEForApi)
  claimSet = JSON.parse(jwtBody)

  cache_value = Cache.new.fetchCachedP12Certificate(merchantconfig_obj)
  privateKey = cache_value.private_key
  jwt_cert_obj = cache_value.cert
  jwt_cert_in_der = Base64.strict_encode64(jwt_cert_obj.to_der)


  # JWT token-Generates using RS256 algorithm only
  x5clist = [jwt_cert_in_der]
  customHeaders = {}
  customHeaders['v-c-merchant-id'] = merchantconfig_obj.keyAlias
  customHeaders['x5c'] = x5clist

  # Generating JWT token
  token = JWT.encode(claimSet, privateKey, 'RS256', customHeaders)
  return token
rescue StandardError => err
  if err.message.include? 'PKCS12_parse: mac verify failure'
    @log_obj.logger.error(ExceptionHandler.new.new_custom_error Constants::ERROR_PREFIX + Constants::INCORRECT_KEY_PASS)
    # exit!
  else
    @log_obj.logger.error(ExceptionHandler.new.new_api_exception err)
    # exit!
  end
  raise err
end