lucidAuth/public/lucidAuth.login.php

<?php
	error_reporting(E_ALL ^ E_NOTICE);

	include_once('../include/lucidAuth.functions.php');
	
	if ($_POST['do'] === 'login') {
		$result = authenticateLDAP($_POST['username'], $_POST['password']);
		if ($result['status'] === 'Success') {
			// Store authentication token; in database serverside & in cookie clientside
			if (storeToken($result['token'], $settings->LDAP['Domain'] . '\\' . $_POST['username'], $_SERVER['HTTP_HOST'])['status'] !== 'Success') {
				// Since this action is only ever called through an AJAX-request; return JSON object
				echo '{"Result":"Fail","Reason":"Failed storing authentication token in database and/or cookie"}' . PHP_EOL;
				exit;
			}
            
			// Convert base64 encoded string back from JSON;
			//   forcing it into an associative array (instead of javascript's default StdClass object)
			try {
				$proxyHeaders = json_decode(base64_decode($_POST['ref']), JSON_OBJECT_AS_ARRAY);
			}
			catch (Exception $e) {
				// Since this action is only ever called through an AJAX-request; return JSON object
				echo '{"Result":"Fail","Reason":"Original request URI lost in transition"}' . PHP_EOL;
				exit;
			}
			$originalUri = !empty($proxyHeaders) ? $proxyHeaders['XForwardedProto'] . '://' . $proxyHeaders['XForwardedHost'] . $proxyHeaders['XForwardedUri'] : 'lucidAuth.manage.php';

			// Since this action is only ever called through an AJAX-request; return JSON object
			echo '{"Result":"Success","Location":"' . $originalUri . '"}' . PHP_EOL;
		} else {
			switch ($result['reason']) {
				case '1':
					echo '{"Result":"Fail","Reason":"Invalid username and/or password"}' . PHP_EOL;
					break;
				default:
					echo '{"Result":"Fail","Reason":"Uncaught error"}' . PHP_EOL;
			}
		}
	} else {
		$stylevar['content']['top'] = '-125px';
		$stylevar['content']['margin-left'] = '-225px';
		$stylevar['content']['height'] = '220px';
		$stylevar['content']['width'] = '450px';

		include_once('../include/lucidAuth.template.php');

		$pageLayout = str_replace('<!--REPL_MAIN-->', $contentLayout['login'], $pageLayout);
		echo $pageLayout;
	}

?>