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Controller for cross-domain iframes added

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Danny Bessems
2019-06-19 10:09:46 +00:00
parent e3405369ca
commit 0675ad8512
5 changed files with 71 additions and 31 deletions
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50
public/lucidAuth.setXDomainCookie.php
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@ -4,38 +4,54 @@
include_once('../include/lucidAuth.functions.php');
// Start with checking $_REQUEST['ref']
// What do we need?
// token again?
// approach 1:
// origin domain, so we can intersect with $settings->Session['CookieDomains'] and iterate through the remaining domains, serving them in one page (which contains iframes already)
// this might be slower because it means one additional roundtrip between client and server
// approach 2:
// let the client setup multiple iframes for all domains other than origin domains
// this requires passing an array of domains to the client in asynchronous reply; which feels insecure
if (!empty($_REQUEST['ref'])) {
try {
$queryString = json_decode(base64_decode($_REQUEST['ref']), JSON_OBJECT_AS_ARRAY);
}
catch (Exception $e) {
// Silently fail, unless explicitly specified otherwise
header("HTTP/1.1 400 Bad Request");
if ($settings->Debug['Verbose']) throw new Exception($e);
exit;
}
switch ($queryString['action']) {
case 'login':
if (validateToken($queryString['token'])['status'] === "Success") {
// This request appears valid; try storing a cookie
$httpHost = $_SERVER['HTTP_HOST'];
$httpOrigin = $_SERVER['HTTP_ORIGIN'];
// Check if $_SERVER['HTTP_HOST'] and $_SERVER['HTTP_ORIGIN'] match any of the configured domains (either explicitly or as a subdomain)
// This might seem backwards, but relying on $_SERVER directly allows spoofed values with potential security risks
$cookieDomain = array_values(array_filter($settings->Session['CookieDomains'], function ($value) use ($httpHost) {
return (strlen($value) > strlen($httpHost)) ? false : (0 === substr_compare($httpHost, $value, -strlen($value)));
}))[0];
$originDomain = array_values(array_filter($settings->Session['CookieDomains'], function ($value) use ($httpOrigin) {
return (strlen($value) > strlen($httpOrigin)) ? false : (0 === substr_compare($httpOrigin, $value, -strlen($value)));
}))[0];
if (($cookieDomain && (is_null($httpOrigin) || $originDomain)) && setcookie('JWT', $queryString['token'], (time() + $settings->Session['Duration']), '/', '.' . $cookieDomain)) {
header("Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}");
header("HTTP/1.1 202 Accepted");
exit;
}
else {
header("HTTP/1.1 400 Bad Request");
exit;
}
}
else {
header("HTTP/1.1 401 Unauthorized");
exit;
}
break;
default:
header("HTTP/1.1 400 Bad Request");
exit;
break;
}
}
include_once('../include/lucidAuth.template.php');
echo sprintf($pageLayout['bare'],
'// iFrames go here'
);
else {
header("HTTP/1.1 400 Bad Request");
exit;
}
?>