<?php
/**
* Handle linkback() response from CAS.
*/
if (!isset($_GET['stateID'])) {
throw new SimpleSAML_Error_BadRequest('Missing stateID parameter.');
}
$stateId = (string)$_GET['stateID'];
if (!isset($_GET['ticket'])) {
throw new SimpleSAML_Error_BadRequest('Missing ticket parameter.');
}
// sanitize the input
$sid = SimpleSAML_Utilities::parseStateID($stateId);
if (!is_null($sid['url'])) {
SimpleSAML_Utilities::checkURLAllowed($sid['url']);
}
$state = SimpleSAML_Auth_State::loadState($stateId, sspmod_cas_Auth_Source_CAS::STAGE_INIT);
$state['cas:ticket'] = (string)$_GET['ticket'];
/* Find authentication source. */
assert('array_key_exists(sspmod_cas_Auth_Source_CAS::AUTHID, $state)');
$sourceId = $state[sspmod_cas_Auth_Source_CAS::AUTHID];
$source = SimpleSAML_Auth_Source::getById($sourceId);
if ($source === NULL) {
throw new Exception('Could not find authentication source with id ' . $sourceId);
}
$source->finalStep($state);
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