Check if the host is in a private range

allowed_host.clj

(defn allowed-host?
  "Checks whether the given Inet Address for outbound request is allowed"
  [^java.net.InetAddress inet-addr]
  (try
    (not (or (.isLinkLocalAddress inet-addr) ; 169.0.0.0/8
             (.isLoopbackAddress inet-addr)  ; 127.0.0.1
             (.isAnyLocalAddress inet-addr)  ; 0.0.0.0
             (.isMulticastAddress inet-addr) ; 224.0.0.0 to 239.255.255.255
             (.isSiteLocalAddress inet-addr) ; 10.0.0.0/8, 192.168.0.0/16
             ))
    (catch Exception e
      false)))