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<?php
/**
* Joomla! Content Management System
*
* @copyright (C) 2009 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Form\Field;
use Joomla\CMS\Access\Access;
use Joomla\CMS\Access\Rules;
use Joomla\CMS\Form\FormField;
use Joomla\CMS\Helper\UserGroupsHelper;
use Joomla\Database\ParameterType;
// phpcs:disable PSR1.Files.SideEffects
\defined('JPATH_PLATFORM') or die;
// phpcs:enable PSR1.Files.SideEffects
/**
* Form Field class for the Joomla Platform.
* Field for assigning permissions to groups for a given asset
*
* @see JAccess
* @since 1.7.0
*/
class RulesField extends FormField
{
/**
* The form field type.
*
* @var string
* @since 1.7.0
*/
protected $type = 'Rules';
/**
* Name of the layout being used to render the field
*
* @var string
* @since 4.0.0
*/
protected $layout = 'joomla.form.field.rules';
/**
* The section.
*
* @var string
* @since 3.2
*/
protected $section;
/**
* The component.
*
* @var string
* @since 3.2
*/
protected $component;
/**
* The assetField.
*
* @var string
* @since 3.2
*/
protected $assetField;
/**
* The flag which indicates if it is the global config
*
* @var bool
* @since 4.3.0
*/
protected $isGlobalConfig;
/**
* The asset rules
*
* @var Rules
* @since 4.3.0
*/
protected $assetRules;
/**
* The actions
*
* @var object[]
* @since 4.3.0
*/
protected $actions;
/**
* The groups
*
* @var object[]
* @since 4.3.0
*/
protected $groups;
/**
* The asset Id
*
* @var int
* @since 4.3.0
*/
protected $assetId;
/**
* The parent asset Id
*
* @var int
* @since 4.3.0
*/
protected $parentAssetId;
/**
* The flag to indicate that it is a new item
*
* @var bool
* @since 4.3.0
*/
protected $newItem;
/**
* The parent class of the field
*
* @var string
* @since 4.0.0
*/
protected $parentclass;
/**
* Method to get certain otherwise inaccessible properties from the form field object.
*
* @param string $name The property name for which to get the value.
*
* @return mixed The property value or null.
*
* @since 3.2
*/
public function __get($name)
{
switch ($name) {
case 'section':
case 'component':
case 'assetField':
return $this->$name;
}
return parent::__get($name);
}
/**
* Method to set certain otherwise inaccessible properties of the form field object.
*
* @param string $name The property name for which to set the value.
* @param mixed $value The value of the property.
*
* @return void
*
* @since 3.2
*/
public function __set($name, $value)
{
switch ($name) {
case 'section':
case 'component':
case 'assetField':
$this->$name = (string) $value;
break;
default:
parent::__set($name, $value);
}
}
/**
* Method to attach a Form object to the field.
*
* @param \SimpleXMLElement $element The SimpleXMLElement object representing the `<field>` tag for the form field object.
* @param mixed $value The form field value to validate.
* @param string $group The field name group control value. This acts as an array container for the field.
* For example if the field has name="foo" and the group value is set to "bar" then the
* full field name would end up being "bar[foo]".
*
* @return boolean True on success.
*
* @see FormField::setup()
* @since 3.2
*/
public function setup(\SimpleXMLElement $element, $value, $group = null)
{
$return = parent::setup($element, $value, $group);
if ($return) {
$this->section = $this->element['section'] ? (string) $this->element['section'] : '';
$this->component = $this->element['component'] ? (string) $this->element['component'] : '';
$this->assetField = $this->element['asset_field'] ? (string) $this->element['asset_field'] : 'asset_id';
}
return $return;
}
/**
* Method to get the field input markup for Access Control Lists.
* Optionally can be associated with a specific component and section.
*
* @return string The field input markup.
*
* @since 1.7.0
* @todo: Add access check.
*/
protected function getInput()
{
// Initialise some field attributes.
$section = $this->section;
$assetField = $this->assetField;
$component = empty($this->component) ? 'root.1' : $this->component;
// Current view is global config?
$this->isGlobalConfig = $component === 'root.1';
// Get the actions for the asset.
$this->actions = Access::getActionsFromFile(
JPATH_ADMINISTRATOR . '/components/' . $component . '/access.xml',
"/access/section[@name='" . $section . "']/"
);
if ($this->actions === false) {
$this->actions = [];
}
// Iterate over the children and add to the actions.
foreach ($this->element->children() as $el) {
if ($el->getName() === 'action') {
$this->actions[] = (object) [
'name' => (string) $el['name'],
'title' => (string) $el['title'],
'description' => (string) $el['description'],
];
}
}
// Get the asset id.
// Note that for global configuration, com_config injects asset_id = 1 into the form.
$this->assetId = (int) $this->form->getValue($assetField);
$this->newItem = empty($this->assetId) && $this->isGlobalConfig === false && $section !== 'component';
// If the asset id is empty (component or new item).
if (empty($this->assetId)) {
// Get the component asset id as fallback.
$db = $this->getDatabase();
$query = $db->getQuery(true)
->select($db->quoteName('id'))
->from($db->quoteName('#__assets'))
->where($db->quoteName('name') . ' = :component')
->bind(':component', $component);
$db->setQuery($query);
$this->assetId = (int) $db->loadResult();
/**
* @todo: incorrect info
* When creating a new item (not saving) it uses the calculated permissions from the component (item <-> component <-> global config).
* But if we have a section too (item <-> section(s) <-> component <-> global config) this is not correct.
* Also, currently it uses the component permission, but should use the calculated permissions for achild of the component/section.
*/
}
// If not in global config we need the parent_id asset to calculate permissions.
if (!$this->isGlobalConfig) {
// In this case we need to get the component rules too.
$db = $this->getDatabase();
$query = $db->getQuery(true)
->select($db->quoteName('parent_id'))
->from($db->quoteName('#__assets'))
->where($db->quoteName('id') . ' = :assetId')
->bind(':assetId', $this->assetId, ParameterType::INTEGER);
$db->setQuery($query);
$this->parentAssetId = (int) $db->loadResult();
}
// Get the rules for just this asset (non-recursive).
$this->assetRules = Access::getAssetRules($this->assetId, false, false);
// Get the available user groups.
$this->groups = $this->getUserGroups();
// Trim the trailing line in the layout file
return trim($this->getRenderer($this->layout)->render($this->getLayoutData()));
}
/**
* Method to get the data to be passed to the layout for rendering.
*
* @return array
*
* @since 4.0.0
*/
protected function getLayoutData()
{
$data = parent::getLayoutData();
$extraData = [
'groups' => $this->groups,
'section' => $this->section,
'actions' => $this->actions,
'assetId' => $this->assetId,
'newItem' => $this->newItem,
'assetRules' => $this->assetRules,
'isGlobalConfig' => $this->isGlobalConfig,
'parentAssetId' => $this->parentAssetId,
'component' => $this->component,
];
return array_merge($data, $extraData);
}
/**
* Get a list of the user groups.
*
* @return object[]
*
* @since 1.7.0
*/
protected function getUserGroups()
{
$options = UserGroupsHelper::getInstance()->getAll();
foreach ($options as &$option) {
$option->value = $option->id;
$option->text = $option->title;
}
return array_values($options);
}
}