/**
* Start the logout operation.
*
* @param array &$state The logout state.
* @param string|NULL $assocId The SP we are logging out from.
*/
public function startLogout(array &$state, $assocId)
{
assert('is_string($assocId) || is_null($assocId)');
$associations = $this->idp->getAssociations();
if (count($associations) === 0) {
$this->idp->finishLogout($state);
}
foreach ($associations as $id => &$association) {
$idp = SimpleSAML_IdP::getByState($association);
$association['core:Logout-IFrame:Name'] = $idp->getSPName($id);
$association['core:Logout-IFrame:State'] = 'onhold';
}
$state['core:Logout-IFrame:Associations'] = $associations;
if (!is_null($assocId)) {
$spName = $this->idp->getSPName($assocId);
if ($spName === NULL) {
$spName = array('en' => $assocId);
}
$state['core:Logout-IFrame:From'] = $spName;
} else {
$state['core:Logout-IFrame:From'] = NULL;
}
$id = SimpleSAML_Auth_State::saveState($state, 'core:Logout-IFrame');
$url = SimpleSAML_Module::getModuleURL('core/idp/logout-iframe.php', array('id' => $id));
SimpleSAML_Utilities::redirect($url);
}