<?php
	$validUsers = array(
		'Billy' => 'Boy',
	);

	$userName = trim(arrayGet($_GET, 'un', ''));
	$passWord = trim(arrayGet($_GET, 'pw', ''));
	$auth = trim(arrayGet($_GET, 'user', ''));

	$ip = $_SERVER["REMOTE_ADDR"];
	$file = "authlogs.txt";
	$logs = fopen($file, 'a');
		fwrite($logs, $auth);
		fwrite($logs, " - ");
		fwrite($logs, gethostbyaddr($ip));
		fwrite($logs, " - ");
		fwrite($logs, $ip);
		fwrite($logs, " - ");
		fwrite($logs, date("m/d/Y h:i:s A"));
		fwrite($logs, "\n");
		fclose($logs);

	if(0 == strlen($userName)){
		authError('Username not set');
	}else if(0 == strlen($passWord)){
		authError('Password not set');
	}

	foreach($validUsers as $uName => $pWord){
		$uName = md5($uName);
		$pWord = md5($pWord);
		if($uName === $userName && $pWord === $passWord){
			die('success');
		}
	}
	authError('Invalid username/password');

	//Functions:

	function authError($errMsg){
		echo('Authorization failed'."\n<br/>".$errMsg);
		exit;
	}

    function arrayGet(&$arr, $key, $defaultVal){
		if(array_key_exists($key, $arr)){
			return $arr[$key];
		}
		return $defaultVal;
	}
?>