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<?php
/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Forms\Config\User;
use Exception;
use Icinga\Application\Logger;
use Icinga\Data\DataArray\ArrayDatasource;
use Icinga\Web\Form;
use Icinga\Web\Notification;
/**
* Form for creating one or more group memberships
*/
class CreateMembershipForm extends Form
{
/**
* The user group backends to fetch groups from
*
* Each backend must implement the Icinga\Data\Extensible and Icinga\Data\Selectable interface.
*
* @var array
*/
protected $backends;
/**
* The username to create memberships for
*
* @var string
*/
protected $userName;
/**
* Set the user group backends to fetch groups from
*
* @param array $backends
*
* @return $this
*/
public function setBackends($backends)
{
$this->backends = $backends;
return $this;
}
/**
* Set the username to create memberships for
*
* @param string $userName
*
* @return $this
*/
public function setUsername($userName)
{
$this->userName = $userName;
return $this;
}
/**
* Create and add elements to this form
*
* @param array $formData The data sent by the user
*/
public function createElements(array $formData)
{
$query = $this->createDataSource()->select()->from('group', array('group_name', 'backend_name'));
$options = array();
foreach ($query as $row) {
$options[$row->backend_name . ';' . $row->group_name] = $row->group_name . ' (' . $row->backend_name . ')';
}
$this->addElement(
'multiselect',
'groups',
array(
'required' => true,
'multiOptions' => $options,
'label' => $this->translate('Groups'),
'description' => sprintf(
$this->translate('Select one or more groups where to add %s as member'),
$this->userName
),
'class' => 'grant-permissions'
)
);
$this->setTitle(sprintf($this->translate('Create memberships for %s'), $this->userName));
$this->setSubmitLabel($this->translate('Create'));
}
/**
* Instantly redirect back in case the user is already a member of all groups
*/
public function onRequest()
{
if ($this->createDataSource()->select()->from('group')->count() === 0) {
Notification::info(sprintf($this->translate('User %s is already a member of all groups'), $this->userName));
$this->getResponse()->redirectAndExit($this->getRedirectUrl());
}
}
/**
* Create the memberships for the user
*
* @return bool
*/
public function onSuccess()
{
$backendMap = array();
foreach ($this->backends as $backend) {
$backendMap[$backend->getName()] = $backend;
}
$single = null;
$groupName = null;
foreach ($this->getValue('groups') as $backendAndGroup) {
list($backendName, $groupName) = explode(';', $backendAndGroup, 2);
try {
$backendMap[$backendName]->insert(
'group_membership',
array(
'group_name' => $groupName,
'user_name' => $this->userName
)
);
} catch (Exception $e) {
Notification::error(sprintf(
$this->translate('Failed to add "%s" as group member for "%s"'),
$this->userName,
$groupName
));
$this->error($e->getMessage());
return false;
}
$single = $single === null;
}
if ($single) {
Notification::success(
sprintf($this->translate('Membership for group %s created successfully'), $groupName)
);
} else {
Notification::success($this->translate('Memberships created successfully'));
}
return true;
}
/**
* 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);
}
}
|
