<?php
/**
* @package Joomla.Administrator
* @subpackage mod_menu
*
* @copyright (C) 2006 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\Module\Menu\Administrator\Menu;
\defined('_JEXEC') or die;
use Joomla\CMS\Application\CMSApplication;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Language\Associations;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Menu\AdministratorMenuItem;
use Joomla\CMS\Table\Table;
use Joomla\CMS\Uri\Uri;
use Joomla\Component\Menus\Administrator\Helper\MenusHelper;
use Joomla\Registry\Registry;
use Joomla\Utilities\ArrayHelper;
/**
* Tree based class to render the admin menu
*
* @since 1.5
*/
class CssMenu
{
/**
* The root of the menu
*
* @var AdministratorMenuItem
*
* @since 4.0.0
*/
protected $root;
/**
* An array of AdministratorMenuItem nodes
*
* @var AdministratorMenuItem[]
*
* @since 4.0.0
*/
protected $nodes = [];
/**
* The module options
*
* @var Registry
*
* @since 3.8.0
*/
protected $params;
/**
* The menu bar state
*
* @var boolean
*
* @since 3.8.0
*/
protected $enabled;
/**
* The application
*
* @var boolean
*
* @since 4.0.0
*/
protected $application;
/**
* A counter for unique IDs
*
* @var integer
*
* @since 4.0.0
*/
protected $counter = 0;
/**
* CssMenu constructor.
*
* @param CMSApplication $application The application
*
* @since 4.0.0
*/
public function __construct(CMSApplication $application)
{
$this->application = $application;
$this->root = new AdministratorMenuItem;
}
/**
* Populate the menu items in the menu tree object
*
* @param Registry $params Menu configuration parameters
* @param bool $enabled Whether the menu should be enabled or disabled
*
* @return AdministratorMenuItem Root node of the menu tree
*
* @since 3.7.0
*/
public function load($params, $enabled)
{
$this->params = $params;
$this->enabled = $enabled;
$menutype = $this->params->get('menutype', '*');
if ($menutype === '*')
{
$name = $this->params->get('preset', 'default');
$this->root = MenusHelper::loadPreset($name);
}
else
{
$this->root = MenusHelper::getMenuItems($menutype, true);
// Can we access everything important with this menu? Create a recovery menu!
if ($this->enabled
&& $this->params->get('check', 1)
&& $this->check($this->root, $this->params))
{
$this->params->set('recovery', true);
// In recovery mode, load the preset inside a special root node.
$this->root = new AdministratorMenuItem(['level' => 0]);
$heading = new AdministratorMenuItem(['title' => 'MOD_MENU_RECOVERY_MENU_ROOT', 'type' => 'heading']);
$this->root->addChild($heading);
MenusHelper::loadPreset('default', true, $heading);
$this->preprocess($this->root);
$this->root->addChild(new AdministratorMenuItem(['type' => 'separator']));
// Add link to exit recovery mode
$uri = clone Uri::getInstance();
$uri->setVar('recover_menu', 0);
$this->root->addChild(new AdministratorMenuItem(['title' => 'MOD_MENU_RECOVERY_EXIT', 'type' => 'url', 'link' => $uri->toString()]));
return $this->root;
}
}
$this->preprocess($this->root);
return $this->root;
}
/**
* Method to render a given level of a menu using provided layout file
*
* @param string $layoutFile The layout file to be used to render
* @param AdministratorMenuItem $node Node to render the children of
*
* @return void
*
* @since 3.8.0
*/
public function renderSubmenu($layoutFile, $node)
{
if (is_file($layoutFile))
{
$children = $node->getChildren();
foreach ($children as $current)
{
$current->level = $node->level + 1;
// This sets the scope to this object for the layout file and also isolates other `include`s
require $layoutFile;
}
}
}
/**
* Check the flat list of menu items for important links
*
* @param AdministratorMenuItem $node The menu items array
* @param Registry $params Module options
*
* @return boolean Whether to show recovery menu
*
* @since 3.8.0
*/
protected function check($node, Registry $params)
{
$me = $this->application->getIdentity();
$authMenus = $me->authorise('core.manage', 'com_menus');
$authModules = $me->authorise('core.manage', 'com_modules');
if (!$authMenus && !$authModules)
{
return false;
}
$items = $node->getChildren(true);
$types = array_column($items, 'type');
$elements = array_column($items, 'element');
$rMenu = $authMenus && !\in_array('com_menus', $elements);
$rModule = $authModules && !\in_array('com_modules', $elements);
$rContainer = !\in_array('container', $types);
if ($rMenu || $rModule || $rContainer)
{
$recovery = $this->application->getUserStateFromRequest('mod_menu.recovery', 'recover_menu', 0, 'int');
if ($recovery)
{
return true;
}
$missing = array();
if ($rMenu)
{
$missing[] = Text::_('MOD_MENU_IMPORTANT_ITEM_MENU_MANAGER');
}
if ($rModule)
{
$missing[] = Text::_('MOD_MENU_IMPORTANT_ITEM_MODULE_MANAGER');
}
if ($rContainer)
{
$missing[] = Text::_('MOD_MENU_IMPORTANT_ITEM_COMPONENTS_CONTAINER');
}
$uri = clone Uri::getInstance();
$uri->setVar('recover_menu', 1);
$table = Table::getInstance('MenuType');
$menutype = $params->get('menutype');
$table->load(array('menutype' => $menutype));
$menutype = $table->get('title', $menutype);
$message = Text::sprintf('MOD_MENU_IMPORTANT_ITEMS_INACCESSIBLE_LIST_WARNING', $menutype, implode(', ', $missing), $uri);
$this->application->enqueueMessage($message, 'warning');
}
return false;
}
/**
* Filter and perform other preparatory tasks for loaded menu items based on access rights and module configurations for display
*
* @param AdministratorMenuItem $parent A menu item to process
*
* @return array
*
* @since 3.8.0
*/
protected function preprocess($parent)
{
$user = $this->application->getIdentity();
$language = $this->application->getLanguage();
$noSeparator = true;
$children = $parent->getChildren();
/**
* Trigger onPreprocessMenuItems for the current level of backend menu items.
* $children is an array of AdministratorMenuItem objects. A plugin can traverse the whole tree,
* but new nodes will only be run through this method if their parents have not been processed yet.
*/
$this->application->triggerEvent('onPreprocessMenuItems', array('com_menus.administrator.module', $children, $this->params, $this->enabled));
foreach ($children as $item)
{
$itemParams = $item->getParams();
// Exclude item with menu item option set to exclude from menu modules
if ($itemParams->get('menu_show', 1) == 0)
{
$parent->removeChild($item);
continue;
}
$item->scope = $item->scope ?? 'default';
$item->icon = $item->icon ?? '';
// Whether this scope can be displayed. Applies only to preset items. Db driven items should use un/published state.
if (($item->scope === 'help' && $this->params->get('showhelp', 1) == 0) || ($item->scope === 'edit' && !$this->params->get('shownew', 1)))
{
$parent->removeChild($item);
continue;
}
if (substr($item->link, 0, 8) === 'special:')
{
$special = substr($item->link, 8);
if ($special === 'language-forum')
{
$item->link = 'index.php?option=com_admin&view=help&layout=langforum';
}
elseif ($special === 'custom-forum')
{
$item->link = $this->params->get('forum_url');
}
}
$uri = new Uri($item->link);
$query = $uri->getQuery(true);
/**
* If component is passed in the link via option variable, we set $item->element to this value for further
* processing. It is needed for links from menu items of third party extensions link to Joomla! core
* components like com_categories, com_fields...
*/
if ($option = $uri->getVar('option'))
{
$item->element = $option;
}
// Exclude item if is not enabled
if ($item->element && !ComponentHelper::isEnabled($item->element))
{
$parent->removeChild($item);
continue;
}
/*
* Multilingual Associations if the site is not set as multilingual and/or Associations is not enabled in
* the Language Filter plugin
*/
if ($item->element === 'com_associations' && !Associations::isEnabled())
{
$parent->removeChild($item);
continue;
}
// Exclude Mass Mail if disabled in global configuration
if ($item->scope === 'massmail' && ($this->application->get('mailonline', 1) == 0 || $this->application->get('massmailoff', 0) == 1))
{
$parent->removeChild($item);
continue;
}
// Exclude item if the component is not authorised
$assetName = $item->element;
if ($item->element === 'com_categories')
{
$assetName = $query['extension'] ?? 'com_content';
}
elseif ($item->element === 'com_fields')
{
// Only display Fields menus when enabled in the component
$createFields = null;
if (isset($query['context']))
{
$createFields = ComponentHelper::getParams(strstr($query['context'], '.', true))->get('custom_fields_enable', 1);
}
if (!$createFields)
{
$parent->removeChild($item);
continue;
}
list($assetName) = isset($query['context']) ? explode('.', $query['context'], 2) : array('com_fields');
}
elseif ($item->element === 'com_cpanel' && $item->link === 'index.php')
{
continue;
}
elseif ($item->link === 'index.php?option=com_cpanel&view=help'
|| $item->link === 'index.php?option=com_cpanel&view=cpanel&dashboard=help')
{
if ($this->params->get('showhelp', 1))
{
continue;
}
// Exclude help menu item if set such in mod_menu
$parent->removeChild($item);
continue;
}
elseif ($item->element === 'com_workflow')
{
// Only display Workflow menus when enabled in the component
$workflow = null;
if (isset($query['extension']))
{
$parts = explode('.', $query['extension']);
$workflow = ComponentHelper::getParams($parts[0])->get('workflow_enabled') && $user->authorise('core.manage.workflow', $parts[0]);
}
if (!$workflow)
{
$parent->removeChild($item);
continue;
}
list($assetName) = isset($query['extension']) ? explode('.', $query['extension'], 2) : array('com_workflow');
}
// Special case for components which only allow super user access
elseif (\in_array($item->element, array('com_config', 'com_privacy', 'com_actionlogs'), true) && !$user->authorise('core.admin'))
{
$parent->removeChild($item);
continue;
}
elseif ($item->element === 'com_joomlaupdate' && !$user->authorise('core.admin'))
{
$parent->removeChild($item);
continue;
}
elseif (($item->link === 'index.php?option=com_installer&view=install' || $item->link === 'index.php?option=com_installer&view=languages')
&& !$user->authorise('core.admin'))
{
continue;
}
elseif ($item->element === 'com_admin')
{
if (isset($query['view']) && $query['view'] === 'sysinfo' && !$user->authorise('core.admin'))
{
$parent->removeChild($item);
continue;
}
}
if ($assetName && !$user->authorise(($item->scope === 'edit') ? 'core.create' : 'core.manage', $assetName))
{
$parent->removeChild($item);
continue;
}
// Exclude if link is invalid
if (!\in_array($item->type, array('separator', 'heading', 'container')) && trim($item->link) === '')
{
$parent->removeChild($item);
continue;
}
// Process any children if exists
if ($item->hasChildren())
{
$this->preprocess($item);
}
// Populate automatic children for container items
if ($item->type === 'container')
{
$exclude = (array) $itemParams->get('hideitems') ?: array();
$components = MenusHelper::getMenuItems('main', false, $exclude);
// We are adding the nodes first to preprocess them, then sort them and add them again.
foreach ($components->getChildren() as $c)
{
$item->addChild($c);
}
$this->preprocess($item);
$children = ArrayHelper::sortObjects($item->getChildren(), 'text', 1, false, true);
foreach ($children as $c)
{
$item->addChild($c);
}
}
// Exclude if there are no child items under heading or container
if (\in_array($item->type, array('heading', 'container')) && !$item->hasChildren() && empty($item->components))
{
$parent->removeChild($item);
continue;
}
// Remove repeated and edge positioned separators, It is important to put this check at the end of any logical filtering.
if ($item->type === 'separator')
{
if ($noSeparator)
{
$parent->removeChild($item);
continue;
}
$noSeparator = true;
}
else
{
$noSeparator = false;
}
// Ok we passed everything, load language at last only
if ($item->element)
{
$language->load($item->element . '.sys', JPATH_ADMINISTRATOR) ||
$language->load($item->element . '.sys', JPATH_ADMINISTRATOR . '/components/' . $item->element);
}
if ($item->type === 'separator' && $itemParams->get('text_separator') == 0)
{
$item->title = '';
}
$item->text = Text::_($item->title);
}
// If last one was a separator remove it too.
$last = end($parent->getChildren());
if ($last && $last->type === 'separator' && $last->getSibling(false) && $last->getSibling(false)->type === 'separator')
{
$parent->removeChild($last);
}
}
/**
* Method to get the CSS class name for an icon identifier or create one if
* a custom image path is passed as the identifier
*
* @param AdministratorMenuItem $node Node to get icon data from
*
* @return string CSS class name
*
* @since 3.8.0
*/
public function getIconClass($node)
{
$identifier = $node->class;
// Top level is special
if (trim($identifier) == '')
{
return null;
}
// We were passed a class name
if (substr($identifier, 0, 6) == 'class:')
{
$class = substr($identifier, 6);
}
// We were passed background icon url. Build the CSS class for the icon
else
{
if ($identifier == null)
{
return null;
}
$class = preg_replace('#\.[^.]*$#', '', basename($identifier));
$class = preg_replace('#\.\.[^A-Za-z0-9\.\_\- ]#', '', $class);
}
$html = 'icon-' . $class . ' icon-fw';
return $html;
}
/**
* Create unique identifier
*
* @return string
*
* @since 4.0.0
*/
public function getCounter()
{
$this->counter++;
return $this->counter;
}
}