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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\Module\casserver\Controller; |
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use SimpleSAML\Configuration; |
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use SimpleSAML\Logger; |
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use SimpleSAML\Module\casserver\Cas\Factories\TicketFactory; |
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use SimpleSAML\Module\casserver\Cas\Protocol\Cas10; |
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use SimpleSAML\Module\casserver\Controller\Traits\UrlTrait; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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/** |
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* Controller class for the casserver module. |
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* |
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* This class serves the different views available in the module. |
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* |
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* @package SimpleSAML\Module\casserver |
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*/ |
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class Cas10Controller |
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{ |
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use UrlTrait; |
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/** @var Logger */ |
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protected Logger $logger; |
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/** @var Configuration */ |
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protected Configuration $casConfig; |
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/** @var Cas10 */ |
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protected Cas10 $cas10Protocol; |
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/** @var TicketFactory */ |
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protected TicketFactory $ticketFactory; |
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// this could be any configured ticket store |
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protected mixed $ticketStore; |
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/** |
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* Controller constructor. |
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* |
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* It initializes the global configuration for the controllers implemented here. |
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* |
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*/ |
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public function __construct() |
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{ |
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$this->casConfig = Configuration::getConfig('module_casserver.php'); |
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$this->cas10Protocol = new Cas10($this->casConfig); |
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/* Instantiate ticket factory */ |
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$this->ticketFactory = new TicketFactory($this->casConfig); |
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/* Instantiate ticket store */ |
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$ticketStoreConfig = $this->casConfig->getOptionalValue( |
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'ticketstore', |
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['class' => 'casserver:FileSystemTicketStore'], |
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); |
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$ticketStoreClass = 'SimpleSAML\\Module\\casserver\\Cas\\Ticket\\' |
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. explode(':', $ticketStoreConfig['class'])[1]; |
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/** @psalm-suppress InvalidStringClass */ |
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$this->ticketStore = new $ticketStoreClass($this->casConfig); |
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} |
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/** |
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* @param Request $request |
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* |
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* @return Response |
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*/ |
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public function validate(Request $request): Response |
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{ |
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// Check if any of the required query parameters are missing |
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if (!$request->query->has('service')) { |
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Logger::debug('casserver: Missing service parameter: [service]'); |
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return new Response( |
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$this->cas10Protocol->getValidateFailureResponse(), |
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Response::HTTP_BAD_REQUEST, |
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); |
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} elseif (!$request->query->has('ticket')) { |
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Logger::debug('casserver: Missing service parameter: [ticket]'); |
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return new Response( |
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$this->cas10Protocol->getValidateFailureResponse(), |
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Response::HTTP_BAD_REQUEST, |
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); |
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} |
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// Check if we are required to force an authentication |
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$forceAuthn = $request->query->has('renew') && $request->query->get('renew'); |
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// Get the ticket |
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$ticket = $request->query->get('ticket'); |
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// Get the service |
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$service = $request->query->get('service'); |
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try { |
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// Get the service ticket |
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$serviceTicket = $this->ticketStore->getTicket($ticket); |
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// Delete the ticket |
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$this->ticketStore->deleteTicket($ticket); |
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} catch (\Exception $e) { |
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Logger::error('casserver:validate: internal server error. ' . var_export($e->getMessage(), true)); |
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return new Response( |
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$this->cas10Protocol->getValidateFailureResponse(), |
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Response::HTTP_INTERNAL_SERVER_ERROR, |
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); |
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} |
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$failed = false; |
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$message = ''; |
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// No ticket |
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if ($serviceTicket === null) { |
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$message = 'ticket: ' . var_export($ticket, true) . ' not recognized'; |
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$failed = true; |
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// This is not a service ticket |
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} elseif (!$this->ticketFactory->isServiceTicket($serviceTicket)) { |
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$message = 'ticket: ' . var_export($ticket, true) . ' is not a service ticket'; |
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$failed = true; |
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// the ticket has expired |
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} elseif ($this->ticketFactory->isExpired($serviceTicket)) { |
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$message = 'Ticket has ' . var_export($ticket, true) . ' expired'; |
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$failed = true; |
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} elseif ($this->sanitize($serviceTicket['service']) === $this->sanitize($service)) { |
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$message = 'Mismatching service parameters: expected ' . |
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var_export($serviceTicket['service'], true) . |
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' but was: ' . var_export($service, true); |
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$failed = true; |
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} elseif ($forceAuthn && isset($serviceTicket['forceAuthn']) && $serviceTicket['forceAuthn']) { |
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$message = 'Ticket was issued from single sign on session'; |
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$failed = true; |
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} |
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if ($failed) { |
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Logger::error('casserver:validate: ' . $message, true); |
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return new Response( |
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$this->cas10Protocol->getValidateFailureResponse(), |
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Response::HTTP_BAD_REQUEST, |
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); |
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} |
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// Get the username field |
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$usernameField = $this->casConfig->getOptionalValue('attrname', 'eduPersonPrincipalName'); |
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// Fail if the username field is not present in the attribute list |
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if (!\array_key_exists($usernameField, $serviceTicket['attributes'])) { |
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Logger::error( |
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'casserver:validate: internal server error. Missing user name attribute: ' |
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. var_export($usernameField, true), |
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); |
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} |
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// Successful validation |
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return new Response( |
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$this->cas10Protocol->getValidateSuccessResponse($serviceTicket['attributes'][$usernameField][0]), |
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Response::HTTP_OK, |
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); |
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} |
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} |
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simplesamlphp /
simplesamlphp-module-casserver
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