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<?php
/**
* Class which handles traditional logout.
*
* @package SimpleSAMLphp
*/
class SimpleSAML_IdP_LogoutTraditional extends SimpleSAML_IdP_LogoutHandler
{
/**
* Picks the next SP and issues a logout request.
*
* This function never returns.
*
* @param array &$state The logout state.
*/
private function logoutNextSP(array &$state)
{
$association = array_pop($state['core:LogoutTraditional:Remaining']);
if ($association === null) {
$this->idp->finishLogout($state);
}
$relayState = SimpleSAML_Auth_State::saveState($state, 'core:LogoutTraditional', true);
$id = $association['id'];
SimpleSAML_Logger::info('Logging out of '.var_export($id, true).'.');
try {
$idp = SimpleSAML_IdP::getByState($association);
$url = call_user_func(array($association['Handler'], 'getLogoutURL'), $idp, $association, $relayState);
\SimpleSAML\Utils\HTTP::redirectTrustedURL($url);
} catch (Exception $e) {
SimpleSAML_Logger::warning('Unable to initialize logout to '.var_export($id, true).'.');
$this->idp->terminateAssociation($id);
$state['core:Failed'] = true;
// Try the next SP
$this->logoutNextSP($state);
assert('FALSE');
}
}
/**
* Start the logout operation.
*
* This function never returns.
*
* @param array &$state The logout state.
* @param string $assocId The association that started the logout.
*/
public function startLogout(array &$state, $assocId)
{
$state['core:LogoutTraditional:Remaining'] = $this->idp->getAssociations();
self::logoutNextSP($state);
}
/**
* Continue the logout operation.
*
* This function will never return.
*
* @param string $assocId The association that is terminated.
* @param string|null $relayState The RelayState from the start of the logout.
* @param SimpleSAML_Error_Exception|null $error The error that occurred during session termination (if any).
*
* @throws SimpleSAML_Error_Exception If the RelayState was lost during logout.
*/
public function onResponse($assocId, $relayState, SimpleSAML_Error_Exception $error = null)
{
assert('is_string($assocId)');
assert('is_string($relayState) || is_null($relayState)');
if ($relayState === null) {
throw new SimpleSAML_Error_Exception('RelayState lost during logout.');
}
$state = SimpleSAML_Auth_State::loadState($relayState, 'core:LogoutTraditional');
if ($error === null) {
SimpleSAML_Logger::info('Logged out of '.var_export($assocId, true).'.');
$this->idp->terminateAssociation($assocId);
} else {
SimpleSAML_Logger::warning('Error received from '.var_export($assocId, true).' during logout:');
$error->logWarning();
$state['core:Failed'] = true;
}
self::logoutNextSP($state);
}
}
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