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<?php |
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declare(strict_types=1); |
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/* For licensing terms, see /license.txt */ |
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namespace Chamilo\LtiBundle\Controller; |
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use Chamilo\CoreBundle\Controller\BaseController; |
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use Chamilo\LtiBundle\Component\OutcomeDeleteRequest; |
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use Chamilo\LtiBundle\Component\OutcomeReadRequest; |
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use Chamilo\LtiBundle\Component\OutcomeReplaceRequest; |
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use Chamilo\LtiBundle\Component\OutcomeResponse; |
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use Chamilo\LtiBundle\Component\OutcomeUnsupportedRequest; |
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use Chamilo\LtiBundle\Entity\ExternalTool; |
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use Doctrine\Persistence\ManagerRegistry; |
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use OAuthUtil; |
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use SimpleXMLElement; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\Routing\Attribute\Route; |
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use Symfony\Contracts\Translation\TranslatorInterface; |
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class ServiceController extends BaseController |
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{ |
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public function __construct( |
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private ManagerRegistry $managerRegistry, |
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private TranslatorInterface $translator, |
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) {} |
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#[Route(path: '/lti/os', name: 'chamilo_lti_os')] |
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public function outcomeService(Request $request): Response |
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{ |
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$em = $this->managerRegistry->getManager(); |
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$toolRepo = $em->getRepository(ExternalTool::class); |
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$headers = $request->headers; |
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if (empty($headers->get('authorization'))) { |
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throw $this->createAccessDeniedException(); |
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} |
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$authParams = OAuthUtil::split_header($headers['Authorization']); |
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if (empty($authParams) || empty($authParams['oauth_consumer_key']) || empty($authParams['oauth_signature'])) { |
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throw $this->createAccessDeniedException(); |
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} |
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$course = $this->getCourse(); |
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$tools = $toolRepo->findBy([ |
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'consumerKey' => $authParams['oauth_consumer_key'], |
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]); |
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$url = $this->generateUrl('chamilo_lti_os', [ |
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'code' => $course->getCode(), |
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]); |
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$toolIsFound = false; |
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/** @var ExternalTool $tool */ |
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foreach ($tools as $tool) { |
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$signatureIsValid = $this->compareRequestSignature( |
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$url, |
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$authParams['oauth_consumer_key'], |
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$authParams['oauth_signature'], |
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$tool |
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); |
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if ($signatureIsValid) { |
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$toolIsFound = true; |
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break; |
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} |
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} |
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if (!$toolIsFound) { |
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throw $this->createNotFoundException('External tool not found. Signature is not valid'); |
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} |
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$body = file_get_contents('php://input'); |
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$bodyHash = base64_encode(sha1($body, true)); |
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if ($bodyHash !== $authParams['oauth_body_hash']) { |
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throw $this->createAccessDeniedException('Request is not valid.'); |
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} |
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$process = $this->processServiceRequest(); |
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$response = new Response($process); |
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$response->headers->set('Content-Type', 'application/xml'); |
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return $response; |
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} |
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private function processServiceRequest(): ?OutcomeResponse |
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{ |
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$requestContent = file_get_contents('php://input'); |
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if (empty($requestContent)) { |
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return null; |
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} |
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$xml = new SimpleXMLElement($requestContent); |
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if (empty($xml)) { |
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return null; |
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} |
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$bodyChildren = $xml->imsx_POXBody->children(); |
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if (empty($bodyChildren)) { |
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return null; |
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} |
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$name = $bodyChildren->getName(); |
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switch ($name) { |
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case 'replaceResultRequest': |
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$serviceRequest = new OutcomeReplaceRequest($xml); |
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break; |
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case 'readResultRequest': |
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$serviceRequest = new OutcomeReadRequest($xml); |
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break; |
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case 'deleteResultRequest': |
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$serviceRequest = new OutcomeDeleteRequest($xml); |
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break; |
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default: |
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$name = str_replace(['ResultRequest', 'Request'], '', $name); |
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$serviceRequest = new OutcomeUnsupportedRequest($xml, $name); |
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break; |
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} |
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$serviceRequest->setEntityManager($this->managerRegistry->getManager()); |
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$serviceRequest->setTranslator($this->translator); |
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return $serviceRequest->process(); |
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} |
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} |
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chamilo /
chamilo-lms
