AJAX Authentication

[cdoverlaw]

I am trying to write a routine that checks my user data is valid and then returns true or false, this routine is used where I need a quick response to whether the user is a valid user or not.

function Authenticate(){

	//Read Cookies
	var Username = readCookie('Username');
	var Password = readCookie('Password');
	var AuthLevel = readCookie('AuthLevel');
	var response = "FALSE"
	
	var url="db/getuser.php";
	var params="username=" + Username + "&password=" + Password
	
	xmlhttp.onreadystatechange=function () {

        if (xmlhttp.stateChange==4) {

            if (xmlhttp.status==200) {

					
					var sString = xmlhttp.responseText;
					var sArray = new Array();
		
					//Split the returned string
					sArray = sString.split(",");
	
                    response = sArray[0];
					
            }

        }
	}

	xmlhttp.open("POST",url,true);
					
	//Send the proper header information along with the request
	xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlhttp.setRequestHeader("Content-length", params.length);
	xmlhttp.setRequestHeader("Connection", "close");

	xmlhttp.send(params);
	
	return response;
}

Unfortunately this always returns false

Thanks
Jonathan

[ShadowIce]

now im not a an ajax genius, but i DID manage to see 1 error u made:

change:

function Authenticate(){

	//Read Cookies
	var Username = readCookie('Username');
	var Password = readCookie('Password');
	var AuthLevel = readCookie('AuthLevel');
	var response = "FALSE"
	
	var url="db/getuser.php";
	var params="username=" + Username + "&password=" + Password
	
	xmlhttp.onreadystatechange=function () {

        if (xmlhttp.stateChange==4) {

            if (xmlhttp.status==200) {

					
					var sString = xmlhttp.responseText;
					var sArray = new Array();
		
					//Split the returned string
					sArray = sString.split(",");
	
                    response = sArray[0];
					
            }

        }
	}

	xmlhttp.open("POST",url,true);
					
	//Send the proper header information along with the request
	xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlhttp.setRequestHeader("Content-length", params.length);
	xmlhttp.setRequestHeader("Connection", "close");

	xmlhttp.send(params);
	
	return response;
}

to:

function Authenticate(url){

	//Read Cookies
	var Username = readCookie('Username');
	var Password = readCookie('Password');
	var AuthLevel = readCookie('AuthLevel');
	var response = "FALSE"
	
	var url="db/getuser.php";
	var params="username=" + Username + "&password=" + Password
	
	xmlhttp.onreadystatechange=function () {

        if (xmlhttp.stateChange==4) {

            if (xmlhttp.status==200) {

					
					var sString = xmlhttp.responseText;
					var sArray = new Array();
		
					//Split the returned string
					sArray = sString.split(",");
	
                    response = sArray[0];
					
            }

        }
	}

	xmlhttp.open("POST",url,true);
					
	//Send the proper header information along with the request
	xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlhttp.setRequestHeader("Content-length", params.length);
	xmlhttp.setRequestHeader("Connection", "close");

	xmlhttp.send(params);
	
	return response;
}

call authenticate like this man:

<script>Authenticate('webpage.html');</script>

Hope that helps!

Good luck!

~SI~

[cdoverlaw]

Why would I pass in a URL, the url is being filled in in the routine

[ShadowIce]

Sorry, didnt see the var there.

[cdoverlaw]

LOL ok, was bit confused by your change,