/**
* Returns the current users' principal uri.
*
* If nobody is logged in, this will return null.
*
* @return string|null
*/
public function getCurrentUser()
{
$userInfo = $this->authBackend->getCurrentUser();
if (!$userInfo) {
return null;
}
return $userInfo;
}
/**
* This method intercepts calls to PROPFIND and similar lookups
*
* This is done to inject the current-user-principal if this is requested.
*
* @todo support for 'unauthenticated'
* @return void
*/
public function afterGetProperties($href, &$properties)
{
if (array_key_exists('{DAV:}current-user-principal', $properties[404])) {
if ($ui = $this->authBackend->getCurrentUser()) {
$properties[200]['{DAV:}current-user-principal'] = new Sabre_DAV_Property_Principal(Sabre_DAV_Property_Principal::HREF, $ui['uri']);
} else {
$properties[200]['{DAV:}current-user-principal'] = new Sabre_DAV_Property_Principal(Sabre_DAV_Property_Principal::UNAUTHENTICATED);
}
unset($properties[404]['{DAV:}current-user-principal']);
}
if (array_key_exists('{DAV:}principal-collection-set', $properties[404])) {
$properties[200]['{DAV:}principal-collection-set'] = new Sabre_DAV_Property_Href('principals');
unset($properties[404]['{DAV:}principal-collection-set']);
}
if (array_key_exists('{DAV:}supported-report-set', $properties[200])) {
$properties[200]['{DAV:}supported-report-set']->addReport(array('{DAV:}expand-property'));
}
}
/**
* Check if user has access.
*
* This method does a check if the currently logged in user
* has permission to access this calendar. There is only read-write
* access, so you're in or you're out.
*
* @return bool
*/
protected function hasPrivilege()
{
if (!($user = $this->authBackend->getCurrentUser())) {
return false;
}
if ($user['uri'] !== $this->calendarInfo['principaluri']) {
return false;
}
return true;
}
