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<?php |
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/** |
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* Proxy controller class. |
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* |
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* @version 1.2.0 |
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* @since 1.2.0 |
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*/ |
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namespace Cassava\CAS\Controller; |
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use Cassava\CAS; |
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use Cassava\Exception\GeneralException; |
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use Cassava\Exception\RequestException; |
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use Cassava\Exception\TicketException; |
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use Cassava\Plugin; |
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/** |
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* Implements CAS proxy ticket generation. |
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* |
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* `/proxy` provides proxy tickets to services that have acquired proxy-granting tickets and |
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* will be proxying authentication to back-end services. |
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* |
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* The following HTTP request parameters must be provided: |
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* |
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* - `pgt` (required): The proxy-granting ticket (PGT) acquired by the service during |
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* service ticket (ST) or proxy ticket (PT) validation. |
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* - `targetService` (required): The service identifier of the back-end service. Note that not |
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* all back-end services are web services so this service identifier will not always be a URL. |
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* However, the service identifier specified here must match the "service" parameter specified |
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* to `/proxyValidate` upon validation of the proxy ticket. |
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* |
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* @since 1.2.0 |
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*/ |
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class ProxyController extends ValidateController { |
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/** |
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* Valid ticket types. |
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* |
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* `/proxy` checks the validity of the proxy-granting ticket passed. |
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* |
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* @var array |
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*/ |
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protected $validTicketTypes = array( |
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CAS\Ticket::TYPE_PGT, |
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); |
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/** |
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* Handles proxy ticket generation requests. |
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* |
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* This method attempts to set a `Content-Type: text/xml` HTTP response header. |
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* |
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* @param array $request Request arguments. |
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* @return string Response XML string. |
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*/ |
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public function handleRequest( $request ) { |
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$pgt = isset( $request['pgt'] ) ? $request['pgt'] : ''; |
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$targetService = isset( $request['targetService'] ) ? $request['targetService'] : ''; |
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$response = new CAS\Response\ProxyResponse; |
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try { |
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$ticket = $this->validateRequest( $pgt, $targetService ); |
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$proxyTicket = new CAS\Ticket( CAS\Ticket::TYPE_PT, $ticket->user, $targetService ); |
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$response->setTicket( $proxyTicket ); |
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} |
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catch ( GeneralException $exception ) { |
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$response->setError( $exception->getErrorInstance(), 'proxyFailure' ); |
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} |
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$this->server->setResponseContentType( 'text/xml' ); |
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return $response->prepare(); |
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} |
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/** |
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* Validates a proxy ticket, returning a ticket object, or throws an exception. |
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* |
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* @param string $ticket Service or proxy ticket. |
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* @param string $service Service URI. |
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* @return \Cassava\CAS\Ticket Valid ticket object associated with request. |
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* |
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* @throws \Cassava\Exception\RequestException |
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* @throws \Cassava\Exception\TicketException |
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*/ |
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public function validateRequest( $ticket = '', $service = '' ) { |
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try { |
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return parent::validateRequest( $ticket, $service ); |
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} catch ( TicketException $exception ) { |
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throw new TicketException( $exception->getMessage(), |
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TicketException::ERROR_BAD_PGT ); |
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} |
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} |
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} |
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goblindegook /
wp-cas-server
