/** * @version $Id: helper.php 10381 2008-06-01 03:35:53Z pasamio $ * @package Joomla.Framework * @subpackage Application * @copyright Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved. * @license GNU/GPL, see LICENSE.php * Joomla! is free software. This version may have been modified pursuant * to the GNU General Public License, and as distributed it includes or * is derivative of works licensed under the GNU General Public License or * other free or open source software licenses. * See COPYRIGHT.php for copyright notices and details. */ // Check to ensure this file is within the rest of the framework defined('JPATH_BASE') or die(); /** * Component helper class * * @static * @package Joomla.Framework * @subpackage Application * @since 1.5 */ class JComponentHelper { /** * Get the component info * * @access public * @param string $name The component name * @param boolean $string If set and a component does not exist, the enabled attribue will be set to false * @return object A JComponent object */ function &getComponent( $name, $strict = false ) { $result = null; $components = JComponentHelper::_load(); if (isset( $components[$name] )) { $result = &$components[$name]; } else { $result = new stdClass(); $result->enabled = $strict ? false : true; $result->params = null; } return $result; } /** * Checks if the component is enabled * * @access public * @param string $component The component name * @param boolean $string If set and a component does not exist, false will be returned * @return boolean */ function isEnabled( $component, $strict = false ) { global $mainframe; $result = &JComponentHelper::getComponent( $component, $strict ); return ($result->enabled | $mainframe->isAdmin()); } /** * Gets the parameter object for the component * * @access public * @param string $name The component name * @return object A JParameter object */ function &getParams( $name ) { static $instances; if (!isset( $instances[$name] )) { $component = &JComponentHelper::getComponent( $name ); $instances[$name] = new JParameter($component->params); } return $instances[$name]; } function renderComponent($name = null, $params = array()) { global $mainframe, $option; if(empty($name)) { // Throw 404 if no component JError::raiseError(404, JText::_("Component Not Found")); return; } $scope = $mainframe->scope; //record the scope $mainframe->scope = $name; //set scope to component name // Build the component path $name = preg_replace('/[^A-Z0-9_\.-]/i', '', $name); $file = substr( $name, 4 ); // Define component path define( 'JPATH_COMPONENT', JPATH_BASE.DS.'components'.DS.$name); define( 'JPATH_COMPONENT_SITE', JPATH_SITE.DS.'components'.DS.$name); define( 'JPATH_COMPONENT_ADMINISTRATOR', JPATH_ADMINISTRATOR.DS.'components'.DS.$name); // get component path if ( $mainframe->isAdmin() && file_exists(JPATH_COMPONENT.DS.'admin.'.$file.'.php') ) { $path = JPATH_COMPONENT.DS.'admin.'.$file.'.php'; } else { $path = JPATH_COMPONENT.DS.$file.'.php'; } // If component disabled throw error if (!JComponentHelper::isEnabled( $name ) || !file_exists($path)) { JError::raiseError( 404, JText::_( 'Component Not Found' ) ); } // Handle legacy globals if enabled if ($mainframe->getCfg('legacy')) { // Include legacy globals global $my, $database, $id, $acl, $task; // For backwards compatibility extract the config vars as globals $registry =& JFactory::getConfig(); foreach (get_object_vars($registry->toObject()) as $k => $v) { $varname = 'mosConfig_'.$k; $$varname = $v; } $contentConfig = &JComponentHelper::getParams( 'com_content' ); foreach (get_object_vars($contentConfig->toObject()) as $k => $v) { $varname = 'mosConfig_'.$k; $$varname = $v; } $usersConfig = &JComponentHelper::getParams( 'com_users' ); foreach (get_object_vars($usersConfig->toObject()) as $k => $v) { $varname = 'mosConfig_'.$k; $$varname = $v; } } $task = JRequest::getString( 'task' ); // Load common language files $lang =& JFactory::getLanguage(); $lang->load($name); // Handle template preview outlining $contents = null; // Execute the component ob_start(); require_once $path; $contents = ob_get_contents(); ob_end_clean(); // Build the component toolbar jimport( 'joomla.application.helper' ); if (($path = JApplicationHelper::getPath( 'toolbar' )) && $mainframe->isAdmin()) { // Get the task again, in case it has changed $task = JRequest::getString( 'task' ); // Make the toolbar include_once( $path ); } $mainframe->scope = $scope; //revert the scope return $contents; } /** * Load components * * @access private * @return array */ function _load() { static $components; if (isset($components)) { return $components; } $db = &JFactory::getDBO(); $query = 'SELECT *' . ' FROM #__components' . ' WHERE parent = 0'; $db->setQuery( $query ); if (!($components = $db->loadObjectList( 'option' ))) { JError::raiseWarning( 'SOME_ERROR_CODE', "Error loading Components: " . $db->getErrorMsg()); return false; } return $components; } }
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