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') {
				// Return JSON object
				header('Content-Type: application/json');
				echo json_encode([
					"Result"			=>	"Failure",
					"Reason"			=>	"Failed storing authentication token in database and/or cookie"
				]);
				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) {
				// Return JSON object
				header('Content-Type: application/json');
				echo json_encode([
					"Result"			=>	"Failure",
					"Reason"			=>	"Original request-URI lost in transition"
				]);
				exit;
			}
			$originalUri = !empty($proxyHeaders) ? $proxyHeaders['XForwardedProto'] . '://' . $proxyHeaders['XForwardedHost'] . $proxyHeaders['XForwardedUri'] : 'lucidAuth.manage.php';

			// Return JSON object
			header('Content-Type: application/json');
			echo json_encode([
				"Result"			=>	"Success",
				"Location"			=>	$originalUri,
				"CrossDomainLogin"	=>	$settings->Session['CrossDomainLogin'],
                "CookieDomains"     =>  json_encode(array_diff($settings->Session['CookieDomains'], [$_SERVER['HTTP_HOST']])),
                "SecureToken"       =>  $result['token']
			]);
		} else {
			switch ($result['reason']) {
				case '1':
					header('Content-Type: application/json');
					echo json_encode([
						"Result"	=>	"Failure",
						"Reason"	=>	"Invalid username and/or password"
					]);
					break;
				default:
					header('Content-Type: application/json');
					echo json_encode([
						"Result"	=>	"Failure",
						"Reason"	=>	"Uncaught error"
					]);
					break;
			}
		}
	} else {
		include_once('../include/lucidAuth.template.php');

		echo sprintf($pageLayout['full'],
			sprintf($contentLayout['login'],
				$_GET['ref']
			)
		);
	}

?>