djpbessems/lucidAuth
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Controller for cross-domain iframes added

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This commit is contained in:
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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7
include/lucidAuth.template.php
View File

@ -72,7 +72,7 @@ $pageLayout['full_alt'] = <<<'FULL_ALT'
</html>
FULL_ALT;
$pageLayout['bare'] = <<<'BARE'
$pageLayout['frames'] = <<<'FRAMES'
<!DOCTYPE html>
<html lang="nl">
<head>
@ -81,12 +81,13 @@ $pageLayout['bare'] = <<<'BARE'
<meta name="application-name" content="lucidAuth" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.js"></script>
<script src="misc/script.iframe.js"></script>
<script>%1$s</script>
</head>
<body>
%1$s
%2$s
</body>
</html>
BARE;
FRAMES;
$contentLayout['login'] = <<<'LOGIN'
<script src="misc/script.index.js"></script>

12
public/lucidAuth.login.php
View File

@ -14,10 +14,9 @@
"Result" => "Failure",
"Reason" => "Failed storing authentication token in database and/or cookie"
]);
# 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 {
@ -30,7 +29,6 @@
"Result" => "Failure",
"Reason" => "Original request-URI lost in transition"
]);
# 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';
@ -40,7 +38,9 @@
echo json_encode([
"Result" => "Success",
"Location" => $originalUri,
"CrossDomainLogin" => $settings->Session['CrossDomainLogin']
"CrossDomainLogin" => $settings->Session['CrossDomainLogin'],
"CookieDomains" => json_encode(array_diff($settings->Session['CookieDomains'], [$_SERVER['HTTP_HOST']])),
"SecureToken" => $result['token']
]);
} else {
switch ($result['reason']) {
@ -63,8 +63,8 @@
} else {
include_once('../include/lucidAuth.template.php');
echo sprintf($pageLayout['full'],
sprintf($contentLayout['login'],
echo sprintf($pageLayout['full'],
sprintf($contentLayout['login'],
$_GET['ref']
)
);

50
public/lucidAuth.setXDomainCookie.php
View File

@ -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;
}
?>

4
public/lucidAuth.validateRequest.php
View File

@ -14,7 +14,7 @@
$proxyHeaders = array_filter($proxyHeaders, function ($key) {
return substr($key, 0, 10) === 'XForwarded';
}, ARRAY_FILTER_USE_KEY);
// For debugging purposes - enable it in ../lucidAuth.config.php
if ($settings->Debug['LogToFile']) {
file_put_contents('../requestHeaders.log', (new DateTime())->format('Y-m-d\TH:i:s.u') . ' --- ' . (json_encode($proxyHeaders, JSON_FORCE_OBJECT)) . PHP_EOL, FILE_APPEND);
@ -22,7 +22,7 @@
if (sizeof($proxyHeaders) === 0) {
// Non-proxied request; this is senseless, go fetch!
header("HTTP/1.1 403 Forbidden");
header("HTTP/1.1 400 Bad Request");
exit;
}

29
public/misc/script.index.js
View File

@ -31,11 +31,34 @@ $(document).ready(function(){
'color': '#FFF'
});
if (data.CrossDomainLogin) {
// Create iframes for other domains
console.log('CrossDomainLogin initiated');
// do ajax in parallel, show progress,
// redirect once all finished loading or timeout after $X ms
// origin domain should be exempted from timeout
// (because origin domain can/will be different from current domain --due to traefik design).
var cookieDomains = JSON.parse(data.CookieDomains);
var XHR = [];
cookieDomains.forEach(function(domain) {
XHR.push($.get({
url: "https://auth." + domain + "/lucidAuth.setXDomainCookie.php",
crossDomain: true,
data: {
ref: btoa(JSON.stringify({
action: 'login',
token: data.SecureToken
}))
}
}));
});
$.when.apply($, XHR).then(function(){
$.each(arguments, function(_index, arg) {
console.log(JSON.stringify(arg));
});
});
}
console.log("Navigating to :" + data.Location);
window.location.replace(data.Location);
// Finished (either succesfully or through timeout) cross-domain logins
//window.location.replace(data.Location);
}, 2250);
} else {
$('#btnlogin').css({