checkalias.js

phpbased firewall for linux.

/*
*	File: checkAlias.js
*	Author: Espinho
*	Description: Controlla l'inserimento di un nuovo alias
*/

function isCorrectIp(ip){
	var pattern = new RegExp('^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$');
	if(pattern.test(ip)){
		var result = pattern.exec(ip);
		for(i=1;i<result.length;i++){
			if(result[i]<0 || result[i]>255){
				return false;	
			}
		}
		return true;
	}
	return false;
}

function check(){
	var ip = document.getElementById('addr').value;
	var netmask = document.getElementById('mask').value;
	var broadcast = document.getElementById('bcast').value;
	var message = "";
	if(!isCorrectIp(ip)){
		message = "Check ip address";
	}
	if(!isCorrectIp(netmask)){
		if(message == ""){
			message += "Check netmask address";
		}else{
			message += ", netmask address";
		}
	}
	if(!isCorrectIp(broadcast)){
		if(message == ""){
			message += "Check broadcast address";
		}else{
			message += ", broadcast address";
		}
	}
	if(message == ""){
		document.getElementById('form').submit();
	}else{
		alert(message);
	}
}