def calculateHmac()

in cdslogviewer/app/auth/HMAC.scala [52:74]

• 22 lines of code
• 5 McCabe index (conditional complexity)

  def calculateHmac(request: RequestHeader, sharedSecret: String, prependDeploymentPath:Boolean=true)(implicit config:Configuration):Option[String] = try {
    request.headers.get("Digest").flatMap(extract_checksum).map(checksum=>{
      val full_uri = prependDeploymentPath match {
        case true=>config.getOptional[String]("deployment-root").getOrElse("") + request.uri
        case false=>request.uri
      }
      logger.debug(s"full_uri: $full_uri")
      logger.debug(s"date: ${request.headers.get("Date")}")
      logger.debug(s"content-type: ${request.headers.get("Content-Type")}")
      logger.debug(s"checksum: $checksum")
      logger.debug(s"method: ${request.method}")

      val string_to_sign = s"$full_uri\n${request.headers.get("Date").get}\n${request.headers.get("Content-Type").getOrElse("")}\n$checksum\n${request.method}"
      logger.debug(s"Incoming request, string to sign: $string_to_sign")
      val hmac = generateHMAC(sharedSecret, string_to_sign)
      logger.debug(s"HMAC generated: $hmac")
      hmac
    })
  } catch {
    case e:java.util.NoSuchElementException=>
      logger.debug(e.toString)
      None
  }