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<?php |
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namespace SimpleSAML\Module\casserver\Cas; |
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use SimpleSAML\Configuration; |
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use SimpleSAML\Error\BadRequest; |
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use SimpleSAML\Logger; |
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use SimpleSAML\Module; |
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use SimpleSAML\Module\casserver\Cas\Ticket\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 Configuration */ |
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private $casconfig; |
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/** @var TicketStore */ |
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private $ticketStore; |
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/** @var TicketFactory */ |
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private $ticketFactory; |
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/** |
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* The ticket id doesn't match a ticket |
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*/ |
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const INVALID_TICKET = 'INVALID_TICKET'; |
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/** |
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* TicketValidator constructor. |
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* @param 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 = $casconfig->getValue('ticketstore', ['class' => 'casserver:FileSystemTicketStore']); |
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$ticketStoreClass = Module::resolveClass($ticketStoreConfig['class'], 'Cas_Ticket'); |
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/** @var TicketStore $ticketStore */ |
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/** @psalm-suppress InvalidStringClass */ |
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$this->ticketStore = new $ticketStoreClass($casconfig); |
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$ticketFactoryClass = Module::resolveClass('casserver:TicketFactory', 'Cas_Ticket'); |
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/** @var $ticketFactory TicketFactory */ |
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/** @psalm-suppress InvalidStringClass */ |
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$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 CasException Thrown if ticket doesn't exist, expired, service mismatch |
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* @throws \InvalidArgumentException thrown if $ticket or $service parameter is missing |
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*/ |
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public function validateAndDeleteTicket($ticket, $service) |
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{ |
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if (empty($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(CasException::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(CasException::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(CasException::INVALID_SERVICE, $message); |
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} |
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return $serviceTicket; |
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} |
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public static function sanitize($parameter) |
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{ |
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return preg_replace( |
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'/;jsessionid=.*[^?].*$/', |
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'', |
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preg_replace('/;jsessionid=.*[?]/', '?', urldecode($parameter)) |
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); |
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} |
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} |
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simplesamlphp /
simplesamlphp-module-casserver
