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path: root/isup/ajax.php
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<?php

if( !isset($_REQUEST["action"]) || $_REQUEST["action"] == "" ){
	header($_SERVER["SERVER_PROTOCOL"] . " 400 Bad Request");
	header("X-Debug: Please define a action.");
	exit;
}
if( !isset($_REQUEST["url"]) || $_REQUEST["url"] == "" ){
	header($_SERVER["SERVER_PROTOCOL"] . " 400 Bad Request");
	header("X-Debug: Please define a valid host.");
	exit;
}

function ipv6($host){

	if ( filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) ) {
		return true;
	}

	return false;
}

switch($_REQUEST["action"]){
	case("ping"):
		require 'ping.php';
		if ( ping( sanitizeHost($_REQUEST["url"]), ipv6($_REQUEST["url"]) ) ){
			echo "up";
		} else {
			echo "down";
		}
		break;
	case("http"):
		require 'http.php';
		if ( !ipv6($_REQUEST["url"]) && filter_var(sanitizeUrl($_REQUEST["url"]), FILTER_VALIDATE_URL, FILTER_FLAG_HOST_REQUIRED) === false ){
			echo "not valid";
		} else {
			if( isUp($_REQUEST["url"]) ){
				echo "up";
			} else {
				echo "down";
			}
		}
		break;
	default:
		header($_SERVER["SERVER_PROTOCOL"] . " 400 Bad Request");
		header("X-Debug: Please define a valid action.");
		break;
}