upgrade

plugin/ims_lti/jwks.php

@@ -0,0 +1,47 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+use Chamilo\PluginBundle\Entity\ImsLti\Platform;
+use Firebase\JWT\JWT;
+use phpseclib\Crypt\RSA;
+
+$cidReset = true;
+
+require_once __DIR__.'/../../main/inc/global.inc.php';
+
+$plugin = ImsLtiPlugin::create();
+
+if ($plugin->get('enabled') !== 'true') {
+    exit;
+}
+
+/** @var Platform $platform */
+$platform = Database::getManager()
+    ->getRepository('ChamiloPluginBundle:ImsLti\Platform')
+    ->findOneBy([]);
+
+if (!$platform) {
+    exit;
+}
+
+$jwks = [];
+
+$key = new RSA();
+$key->setHash('sha256');
+$key->loadKey($platform->getPrivateKey());
+$key->setPublicKey(false, RSA::PUBLIC_FORMAT_PKCS8);
+
+if ($key->publicExponent) {
+    $jwks = [
+        'kty' => 'RSA',
+        'alg' => 'RS256',
+        'use' => 'sig',
+        'e' => JWT::urlsafeB64Encode($key->publicExponent->toBytes()),
+        'n' => JWT::urlsafeB64Encode($key->modulus->toBytes()),
+        'kid' => $platform->getKid(),
+    ];
+}
+
+header('Content-Type: application/json');
+
+echo json_encode(['keys' => [$jwks]]);