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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\Module\casserver\Cas; |
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use InvalidArgumentException; |
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use SimpleSAML\CAS\Constants as C; |
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use SimpleSAML\Configuration; |
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use SimpleSAML\Logger; |
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use SimpleSAML\Module; |
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use SimpleSAML\Module\casserver\Cas\CasException; |
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use SimpleSAML\Module\casserver\Cas\Factories\TicketFactory; |
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use SimpleSAML\Module\casserver\Cas\Ticket\TicketStore; |
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class TicketValidator |
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{ |
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/** @var \SimpleSAML\Configuration */ |
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private Configuration $casconfig; |
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/** @var \SimpleSAML\Module\casserver\Cas\Ticket\TicketStore */ |
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private TicketStore $ticketStore; |
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/** @var \SimpleSAML\Module\casserver\Cas\Factories\TicketFactory */ |
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private TicketFactory $ticketFactory; |
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/** |
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* TicketValidator constructor. |
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* @param \SimpleSAML\Configuration $casconfig |
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*/ |
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public function __construct(Configuration $casconfig) |
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{ |
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$this->casconfig = $casconfig; |
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$ticketStoreConfig = $casconfig->getOptionalValue( |
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'ticketstore', |
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['class' => 'casserver:FileSystemTicketStore'], |
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); |
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$ticketStoreClass = Module::resolveClass($ticketStoreConfig['class'], 'Cas\Ticket'); |
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/** @var \SimpleSAML\Module\casserver\Cas\Ticket\TicketStore $this->ticketStore */ |
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$this->ticketStore = new $ticketStoreClass($casconfig); |
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$ticketFactoryClass = Module::resolveClass('casserver:TicketFactory', 'Cas\Factories'); |
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/** @var \SimpleSAML\Module\casserver\Cas\Factories\TicketFactory $this->ticketStore */ |
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$this->ticketFactory = new $ticketFactoryClass($casconfig); |
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} |
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/** |
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* @param string $ticket the ticket id to load validate |
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* @param string $service the service that the ticket was issued to |
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* @return string|array|null |
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* @throws \SimpleSAML\Module\casserver\Cas\CasException Thrown if ticket doesn't exist, expired, service mismatch |
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* @throws \InvalidArgumentException thrown if $ticket or $service parameter is missing |
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*/ |
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public function validateAndDeleteTicket(string $ticket, string $service) |
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{ |
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if (empty($ticket)) { |
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throw new InvalidArgumentException('Missing ticket parameter: [ticket]'); |
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} |
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if (empty($service)) { |
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throw new InvalidArgumentException('Missing service parameter: [service]'); |
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} |
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$serviceTicket = $this->ticketStore->getTicket($ticket); |
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if ($serviceTicket == null) { |
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$message = 'Ticket ' . var_export($ticket, true) . ' not recognized'; |
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Logger::debug('casserver:' . $message); |
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throw new CasException(C::ERR_INVALID_TICKET, $message); |
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} |
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// TODO: do proxy vs non proxy ticket check |
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$this->ticketStore->deleteTicket($ticket); |
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if ($this->ticketFactory->isExpired($serviceTicket)) { |
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$message = 'Ticket ' . var_export($ticket, true) . ' has expired'; |
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Logger::debug('casserver:' . $message); |
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throw new CasException(C::ERR_INVALID_TICKET, $message); |
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} |
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if (self::sanitize($serviceTicket['service']) !== self::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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Logger::debug('casserver:' . $message); |
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throw new CasException(C::ERR_INVALID_SERVICE, $message); |
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} |
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return $serviceTicket; |
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} |
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/** |
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* Java CAS clients are inconsistent with their sending of jsessionid, so remove it to |
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* avoid service url matching issues. |
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* @param string $parameter The service url to sanitize |
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* @return string The sanitized url |
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*/ |
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public static function sanitize(string $parameter): string |
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{ |
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return preg_replace( |
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'/;jsessionid=.*[^?].*$/U', |
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'', |
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preg_replace('/;jsessionid=.*[?]/U', '?', urldecode($parameter)), |
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); |
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} |
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} |
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simplesamlphp /
simplesamlphp-module-casserver
