<?php

header('Content-Type: text/html');

if ((stripos($_POST["handler"],"CSE_ajax.php")==false)&&((substr($_POST["handler"],0,5)!="ajax_")|(substr($_POST["request"],0,5)!="ajax_"))) {
	echo $_POST["target"]."<:>Illegal callback file and/or function. All filenames and functions must be prepended with 'ajax_' for your security!<:>";
	die;
}

// a short echo function for testing
if ((stripos($_POST["handler"],"CSE_ajax.php")!=false) && ($_POST["request"]=="ajax_echo")) {

	$aswr = "Request recieved on ".date('Y-m-d, H:i:s')."\n";
	
	$aswr.= "Recieved= ".$_POST["params"]."\n";
	
	$aswr.= "For Target=".$_POST["target"];
	
	// format answer:
	echo $_POST["target"]."<:>".$aswr."<:>append";

} else {
	
	// now for the serious work:
	
	// include the target file:
	if ($_POST["handler"]!="CSE_ajax.php") { require_once($_POST["handler"]); }
	// prepare the parameters:
	$param_str = urldecode($_POST["params"]);
	$params = explode("<|>",$param_str);
	// call function
	$output = call_user_func($_POST["request"], $params, $_POST["target"]);
	
	echo $output;

}

?>