upgrade

plugin/lti_provider/tool/jwks.php

@@ -0,0 +1,49 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+use Chamilo\PluginBundle\Entity\LtiProvider\PlatformKey;
+use Firebase\JWT\JWT;
+use phpseclib\Crypt\RSA;
+
+$cidReset = true;
+
+require_once __DIR__.'/../../../main/inc/global.inc.php';
+
+$plugin = LtiProviderPlugin::create();
+
+if ('true' !== $plugin->get('enabled')) {
+    exit;
+}
+
+/** @var PlatformKey $platformKey */
+$platformKey = Database::getManager()
+    ->getRepository('ChamiloPluginBundle:LtiProvider\PlatformKey')
+    ->findOneBy([]);
+
+if (!$platformKey) {
+    exit;
+}
+
+$privateKey = $platformKey->getPrivateKey();
+
+$jwks = [];
+
+$key = new RSA();
+$key->setHash('sha256');
+$key->loadKey($platformKey->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' => $platformKey->getKid(),
+    ];
+}
+
+header('Content-Type: application/json');
+
+echo json_encode(['keys' => [$jwks]]);