/**
* Create and return a data source to fetch all groups from all backends where the user is not already a member of
*
* @return ArrayDatasource
*/
protected function createDataSource()
{
$groups = $failures = array();
foreach ($this->backends as $backend) {
try {
$memberships = $backend->select()->from('group_membership', array('group_name'))->where('user_name', $this->userName)->fetchColumn();
foreach ($backend->select(array('group_name')) as $row) {
if (!in_array($row->group_name, $memberships)) {
// TODO(jom): Apply this as native query filter
$row->backend_name = $backend->getName();
$groups[] = $row;
}
}
} catch (Exception $e) {
$failures[] = array($backend->getName(), $e);
}
}
if (empty($groups) && !empty($failures)) {
// In case there are only failures, throw the very first exception again
throw $failures[0][1];
} elseif (!empty($failures)) {
foreach ($failures as $failure) {
Logger::error($failure[1]);
Notification::warning(sprintf($this->translate('Failed to fetch any groups from backend %s. Please check your log'), $failure[0]));
}
}
return new ArrayDatasource($groups);
}
/**
* Fetch and return all users from all user backends
*
* @return ArrayDatasource
*/
protected function fetchUsers()
{
$users = array();
foreach ($this->loadUserBackends('Icinga\\Data\\Selectable') as $backend) {
try {
foreach ($backend->select(array('user_name')) as $row) {
$users[] = $row;
}
} catch (Exception $e) {
Logger::error($e);
Notification::warning(sprintf($this->translate('Failed to fetch any users from backend %s. Please check your log'), $backend->getName()));
}
}
return new ArrayDatasource($users);
}
/**
* Fetch and return the given user's groups from all user group backends
*
* @param User $user
*
* @return ArrayDatasource
*/
protected function loadMemberships(User $user)
{
$groups = $alreadySeen = array();
foreach ($this->loadUserGroupBackends() as $backend) {
try {
foreach ($backend->getMemberships($user) as $groupName) {
if (array_key_exists($groupName, $alreadySeen)) {
continue;
// Ignore duplicate memberships
}
$alreadySeen[$groupName] = null;
$groups[] = (object) array('group_name' => $groupName, 'backend' => $backend);
}
} catch (Exception $e) {
Logger::error($e);
Notification::warning(sprintf($this->translate('Failed to fetch memberships from backend %s. Please check your log'), $backend->getName()));
}
}
return new ArrayDatasource($groups);
}
