Extension.php
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<?php
/**
* @package Regular Labs Library
* @version 18.2.10140
*
* @author Peter van Westen <info@regularlabs.com>
* @link http://www.regularlabs.com
* @copyright Copyright © 2018 Regular Labs All Rights Reserved
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
*/
namespace RegularLabs\Library;
defined('_JEXEC') or die;
jimport('joomla.filesystem.file');
jimport('joomla.filesystem.folder');
use JFactory;
use JFile;
use JFolder;
use JInstaller;
use JPluginHelper;
use JText;
/**
* Class Extension
* @package RegularLabs\Library
*/
class Extension
{
/**
* Get the full path to the extension folder
*
* @param string $extension
* @param string $basePath
* @param string $check_folder
*
* @return string
*/
public static function getPath($extension = 'plg_system_regularlabs', $basePath = JPATH_ADMINISTRATOR, $check_folder = '')
{
$basePath = $basePath ?: JPATH_SITE;
if ( ! in_array($basePath, [JPATH_ADMINISTRATOR, JPATH_SITE]))
{
return $basePath;
}
$extension = str_replace('.sys', '', $extension);
switch (true)
{
case (strpos($extension, 'mod_') === 0):
$path = 'modules/' . $extension;
break;
case (strpos($extension, 'plg_') === 0):
list($prefix, $folder, $name) = explode('_', $extension, 3);
$path = 'plugins/' . $folder . '/' . $name;
break;
case (strpos($extension, 'com_') === 0):
default:
$path = 'components/' . $extension;
break;
}
$check_folder = $check_folder ? '/' . $check_folder : '';
if (is_dir($basePath . '/' . $path . $check_folder))
{
return $basePath . '/' . $path;
}
if (is_dir(JPATH_ADMINISTRATOR . '/' . $path . $check_folder))
{
return JPATH_ADMINISTRATOR . '/' . $path;
}
if (is_dir(JPATH_SITE . '/' . $path . $check_folder))
{
return JPATH_SITE . '/' . $path;
}
return $basePath;
}
/**
* Check if all extension types of a given extension are installed
*
* @param string $extension
* @param array $types
*
* @return bool
*/
public static function areInstalled($extension, $types = ['plugin'])
{
foreach ($types as $type)
{
$folder = 'system';
if (is_array($type))
{
list($type, $folder) = $type;
}
if ( ! self::isInstalled($extension, $type, $folder))
{
return false;
}
}
return true;
}
/**
* Check if the given extension is installed
*
* @param string $extension
* @param string $type
* @param string $folder
*
* @return bool
*/
public static function isInstalled($extension, $type = 'component', $folder = 'system')
{
$extension = strtolower($extension);
switch ($type)
{
case 'component':
if (JFile::exists(JPATH_ADMINISTRATOR . '/components/com_' . $extension . '/' . $extension . '.php')
|| JFile::exists(JPATH_ADMINISTRATOR . '/components/com_' . $extension . '/admin.' . $extension . '.php')
|| JFile::exists(JPATH_SITE . '/components/com_' . $extension . '/' . $extension . '.php')
)
{
if ($extension == 'cookieconfirm' && JFile::exists(JPATH_ADMINISTRATOR . '/components/com_cookieconfirm/version.php'))
{
// Only Cookie Confirm 2.0.0.rc1 and above is supported, because
// previous versions don't have isCookiesAllowed()
require_once JPATH_ADMINISTRATOR . '/components/com_cookieconfirm/version.php';
if (version_compare(COOKIECONFIRM_VERSION, '2.2.0.rc1', '<'))
{
return false;
}
}
return true;
}
break;
case 'plugin':
return JFile::exists(JPATH_PLUGINS . '/' . $folder . '/' . $extension . '/' . $extension . '.php');
case 'module':
return (JFile::exists(JPATH_ADMINISTRATOR . '/modules/mod_' . $extension . '/' . $extension . '.php')
|| JFile::exists(JPATH_ADMINISTRATOR . '/modules/mod_' . $extension . '/mod_' . $extension . '.php')
|| JFile::exists(JPATH_SITE . '/modules/mod_' . $extension . '/' . $extension . '.php')
|| JFile::exists(JPATH_SITE . '/modules/mod_' . $extension . '/mod_' . $extension . '.php')
);
case 'library':
return JFolder::exists(JPATH_LIBRARIES . '/' . $extension);
}
return false;
}
/**
* Return an alias and element name based on the given extension name
*
* @param string $name
*
* @return array
*/
public static function getAliasAndElement(&$name)
{
$name = self::getNameByAlias($name);
$alias = self::getAliasByName($name);
$element = self::getElementByAlias($alias);
return [$alias, $element];
}
/**
* Return the name based on the given extension alias
*
* @param string $alias
*
* @return string
*/
public static function getNameByAlias($alias)
{
// Alias is a language string
if (strpos($alias, ' ') === false && strtoupper($alias) == $alias)
{
return JText::_($alias);
}
// Alias has a space and/or capitals, so is already a name
if (strpos($alias, ' ') !== false || $alias !== strtolower($alias))
{
return $alias;
}
return JText::_(self::getXMLValue('name', $alias));
}
/**
* Return an alias based on the given extension name
*
* @param string $name
*
* @return string
*/
public static function getAliasByName($name)
{
$alias = RegEx::replace('[^a-z0-9]', '', strtolower($name));
switch ($alias)
{
case 'advancedmodules':
return 'advancedmodulemanager';
case 'advancedtemplates':
return 'advancedtemplatemanager';
case 'nonumbermanager':
return 'nonumberextensionmanager';
case 'what-nothing':
return 'whatnothing';
}
return $alias;
}
/**
* Return an element name based on the given extension alias
*
* @param string $alias
*
* @return string
*/
public static function getElementByAlias($alias)
{
$alias = self::getAliasByName($alias);
switch ($alias)
{
case 'advancedmodulemanager':
return 'advancedmodules';
case 'advancedtemplatemanager':
return 'advancedtemplates';
case 'nonumberextensionmanager':
return 'nonumbermanager';
}
return $alias;
}
/**
* Return a value from an extensions main xml file based on the given key
*
* @param string $key
* @param string $alias
* @param string $type
* @param string $folder
*
* @return string
*/
public static function getXMLValue($key, $alias, $type = 'component', $folder = 'system')
{
if ( ! $xml = self::getXML($alias, $type, $folder))
{
return '';
}
if ( ! isset($xml[$key]))
{
return '';
}
return isset($xml[$key]) ? $xml[$key] : '';
}
/**
* Return an extensions main xml array
*
* @param string $alias
* @param string $type
* @param string $folder
*
* @return array|bool
*/
public static function getXML($alias, $type = 'component', $folder = 'system')
{
if ( ! $file = self::getXMLFile($alias, $type, $folder))
{
return false;
}
return JInstaller::parseXMLInstallFile($file);
}
/**
* Return an extensions main xml file name (including path)
*
* @param string $alias
* @param string $type
* @param string $folder
*
* @return string
*/
public static function getXMLFile($alias, $type = 'component', $folder = 'system')
{
$element = self::getElementByAlias($alias);
$files = [];
// Components
if (empty($type) || $type == 'component')
{
$files[] = JPATH_ADMINISTRATOR . '/components/com_' . $element . '/' . $element . '.xml';
$files[] = JPATH_SITE . '/components/com_' . $element . '/' . $element . '.xml';
$files[] = JPATH_ADMINISTRATOR . '/components/com_' . $element . '/com_' . $element . '.xml';
$files[] = JPATH_SITE . '/components/com_' . $element . '/com_' . $element . '.xml';
}
// Plugins
if (empty($type) || $type == 'plugin')
{
if ( ! empty($folder))
{
$files[] = JPATH_PLUGINS . '/' . $folder . '/' . $element . '/' . $element . '.xml';
$files[] = JPATH_PLUGINS . '/' . $folder . '/' . $element . '.xml';
}
// System Plugins
$files[] = JPATH_PLUGINS . '/system/' . $element . '/' . $element . '.xml';
$files[] = JPATH_PLUGINS . '/system/' . $element . '.xml';
// Editor Button Plugins
$files[] = JPATH_PLUGINS . '/editors-xtd/' . $element . '/' . $element . '.xml';
$files[] = JPATH_PLUGINS . '/editors-xtd/' . $element . '.xml';
}
// Modules
if (empty($type) || $type == 'module')
{
$files[] = JPATH_ADMINISTRATOR . '/modules/mod_' . $element . '/' . $element . '.xml';
$files[] = JPATH_SITE . '/modules/mod_' . $element . '/' . $element . '.xml';
$files[] = JPATH_ADMINISTRATOR . '/modules/mod_' . $element . '/mod_' . $element . '.xml';
$files[] = JPATH_SITE . '/modules/mod_' . $element . '/mod_' . $element . '.xml';
}
foreach ($files as $file)
{
if ( ! JFile::exists($file))
{
continue;
}
return $file;
}
return '';
}
/**
* Check if the Regular Labs Library is enabled
*
* @return bool
*/
public static function isFrameworkEnabled()
{
return JPluginHelper::isEnabled('system', 'regularlabs');
}
public static function isAuthorised($require_core_auth = true)
{
$user = JFactory::getUser();
if ($user->get('guest'))
{
return false;
}
if ( ! $require_core_auth)
{
return true;
}
if (
! $user->authorise('core.edit', 'com_content')
&& ! $user->authorise('core.edit.own', 'com_content')
&& ! $user->authorise('core.create', 'com_content')
)
{
return false;
}
return true;
}
public static function isEnabledInArea($params)
{
if ( ! isset($params->enable_frontend))
{
return true;
}
// Only allow in frontend
if ($params->enable_frontend == 2 && Document::isClient('administrator'))
{
return false;
}
// Do not allow in frontend
if ( ! $params->enable_frontend && Document::isClient('site'))
{
return false;
}
return true;
}
public static function isEnabledInComponent($params)
{
if ( ! isset($params->disabled_components))
{
return true;
}
return ! Protect::isRestrictedComponent($params->disabled_components);
}
}