1 | <?php |
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2 | /* For licensing terms, see /license.txt */ |
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3 | |||
4 | use Chamilo\PluginBundle\Entity\LtiProvider\PlatformKey; |
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5 | use Firebase\JWT\JWT; |
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6 | use phpseclib\Crypt\RSA; |
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7 | |||
8 | $cidReset = true; |
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9 | |||
10 | require_once __DIR__.'/../../../main/inc/global.inc.php'; |
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11 | |||
12 | $plugin = LtiProviderPlugin::create(); |
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13 | |||
14 | if ('true' !== $plugin->get('enabled')) { |
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15 | exit; |
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16 | } |
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17 | |||
18 | /** @var PlatformKey $platformKey */ |
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19 | $platformKey = Database::getManager() |
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20 | ->getRepository('ChamiloPluginBundle:LtiProvider\PlatformKey') |
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21 | ->findOneBy([]); |
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22 | |||
23 | if (!$platformKey) { |
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24 | exit; |
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25 | } |
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26 | |||
27 | $privateKey = $platformKey->getPrivateKey(); |
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28 | |||
29 | $jwks = []; |
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30 | |||
31 | $key = new RSA(); |
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32 | $key->setHash('sha256'); |
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33 | $key->loadKey($platformKey->getPrivateKey()); |
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34 | $key->setPublicKey(false, RSA::PUBLIC_FORMAT_PKCS8); |
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35 | |||
36 | if ($key->publicExponent) { |
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37 | $jwks = [ |
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38 | 'kty' => 'RSA', |
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39 | 'alg' => 'RS256', |
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40 | 'use' => 'sig', |
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41 | 'e' => JWT::urlsafeB64Encode($key->publicExponent->toBytes()), |
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42 | 'n' => JWT::urlsafeB64Encode($key->modulus->toBytes()), |
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43 | 'kid' => $platformKey->getKid(), |
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44 | ]; |
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45 | } |
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46 | |||
47 | header('Content-Type: application/json'); |
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48 | |||
49 | echo json_encode(['keys' => [$jwks]]); |
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50 |