icingaweb2/application/forms/Config/Authentication/ReorderForm.php

259 lines
7.9 KiB
PHP

<?php
// {{{ICINGA_LICENSE_HEADER}}}
/**
* This file is part of Icinga Web 2.
*
* Icinga Web 2 - Head for multiple monitoring backends.
* Copyright (C) 2013 Icinga Development Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* @copyright 2013 Icinga Development Team <info@icinga.org>
* @license http://www.gnu.org/licenses/gpl-2.0.txt GPL, version 2
* @author Icinga Development Team <info@icinga.org>
*
*/
// {{{ICINGA_LICENSE_HEADER}}}
namespace Icinga\Form\Config\Authentication;
use \Zend_Config;
use Icinga\Web\Form;
/**
* Form for modifying the authentication provider order
*/
class ReorderForm extends Form
{
/**
* The name of the current backend which will get action buttons for up and down movement
*
* @var string
*/
protected $backend;
/**
* The current ordering of all backends, required to determine possible changes
*
* @var array
*/
protected $currentOrder = array();
/**
* Set an array with the current order of all backends
*
* @param array $order An array containing backend names in the order
* they are defined in the authentication.ini
*/
public function setCurrentOrder(array $order)
{
$this->currentOrder = $order;
}
/**
* Set the name of the authentication backend for which to create the form
*
* @param string $backend The name of the authentication backend
*/
public function setBackendName($backend)
{
$this->backend = $backend;
}
/**
* Return the name of the currently set backend as it will appear in the form
*
* @return string The name of the backend
*/
public function getBackendName()
{
return $this->filterName($this->backend);
}
/**
* Create this form
*
* @see Form::create
*/
public function create()
{
if ($this->moveElementUp($this->backend, $this->currentOrder) !== $this->currentOrder) {
$upForm = new Form();
$upForm->addElement(
'hidden',
'form_backend_order',
array(
'required' => true,
'value' => join(',', $this->moveElementUp($this->backend, $this->currentOrder))
)
);
$upForm->addElement(
'button',
'btn_' . $this->getBackendName() . '_reorder_up',
array(
'type' => 'submit',
'escape' => false,
'value' => 'btn_' . $this->getBackendName() . '_reorder_up',
'name' => 'btn_' . $this->getBackendName() . '_reorder_up',
'label' => $this->getView()->icon('up.png', t('Move up in authentication order'))
)
);
$this->addSubForm($upForm, 'btn_reorder_up');
}
if ($this->moveElementDown($this->backend, $this->currentOrder) !== $this->currentOrder) {
$downForm = new Form();
$downForm->addElement(
'hidden',
'form_backend_order',
array(
'required' => true,
'value' => join(',', $this->moveElementDown($this->backend, $this->currentOrder))
)
);
$downForm->addElement(
'button',
'btn_' . $this->getBackendName() . '_reorder_down',
array(
'type' => 'submit',
'escape' => false,
'value' => 'btn_' . $this->getBackendName() . '_reorder_down',
'name' => 'btn_' . $this->getBackendName() . '_reorder_down',
'label' => $this->getView()->icon('down.png', t('Move down in authentication order'))
)
);
$this->addSubForm($downForm, 'btn_reorder_down');
}
}
/**
* Return the flattened result of $this->getValues
*
* @return array The currently set values
*
* @see Form::getValues()
*/
protected function getFlattenedValues()
{
$result = array();
foreach (parent::getValues() as $key => $value) {
if (is_array($value)) {
$result += $value;
} else {
$result[$key] = $value;
}
}
return $result;
}
/**
* Determine whether this form is submitted by testing the submit buttons of both subforms
*
* @return bool Whether the form has been submitted or not
*/
public function isSubmitted()
{
$checkData = $this->getRequest()->getParams();
return isset($checkData['btn_' . $this->getBackendName() . '_reorder_up']) ||
isset($checkData['btn_' . $this->getBackendName() . '_reorder_down']);
}
/**
* Return the reordered configuration after a reorder button has been submitted
*
* @param Zend_Config $config The configuration to reorder
*
* @return array An array containing the reordered configuration
*/
public function getReorderedConfig(Zend_Config $config)
{
$originalConfig = $config->toArray();
$newOrder = $this->getFlattenedValues();
$order = explode(',', $newOrder['form_backend_order']);
$reordered = array();
foreach ($order as $key) {
if (isset($originalConfig[$key])) {
$reordered[$key] = $originalConfig[$key];
}
}
return $reordered;
}
/**
* Static helper for moving an element in an array one slot up, if possible
*
* Example:
*
* <pre>
* $array = array('first', 'second', 'third');
* moveElementUp('third', $array); // returns ['first', 'third', 'second']
* </pre>
*
* @param string $key The key to bubble up one slot
* @param array $array The array to work with
*
* @return array The modified array
*/
protected static function moveElementUp($key, array $array)
{
for ($i = 0; $i < count($array) - 1; $i++) {
if ($array[$i + 1] === $key) {
$swap = $array[$i];
$array[$i] = $array[$i + 1];
$array[$i + 1] = $swap;
return $array;
}
}
return $array;
}
/**
* Static helper for moving an element in an array one slot down, if possible
*
* Example:
*
* <pre>
* $array = array('first', 'second', 'third');
* moveElementDown('first', $array); // returns ['second', 'first', 'third']
* </pre>
*
* @param string $key The key to bubble up one slot
* @param array $array The array to work with
*
* @return array The modified array
*/
protected static function moveElementDown($key, array $array)
{
for ($i = 0; $i < count($array) - 1; $i++) {
if ($array[$i] === $key) {
$swap = $array[$i + 1];
$array[$i + 1] = $array[$i];
$array[$i] = $swap;
return $array;
}
}
return $array;
}
}