install.extplorer.php

<?php
// ensure this file is being included by a parent file
if( !defined( '_JEXEC' ) && !defined( '_VALID_MOS' ) ) die( 'Restricted access' );
/**
* @version $Id: install.extplorer.php 245 2015-09-15 20:20:03Z soeren $
* @package eXtplorer
* @copyright (C) 2005-2008 Soeren
* @license GNU / GPL
* @author soeren
* eXtplorer is Free Software
*/
if(function_exists ('jimport')){
	jimport( 'joomla.version' );
}
if(!function_exists ('com_install')){
	function com_install($mypath =''){
		error_reporting( E_ALL ^ E_NOTICE );
		global $database;
		
		if( is_callable( array( 'JFactory', 'getDBO' ))) {
			$database = JFactory::getDBO();
		}
		if( $mypath == '' ) {
			$mypath = dirname(__FILE__);
		}
		require_once($mypath . "/include/functions.php");
		require_once($mypath . "/libraries/Archive/archive.php");
		
		ext_RaiseMemoryLimit( '50M' );
		
		$archive_name = $mypath.'/scripts.tar.gz';
		$extract_dir = $mypath.'/';
		
		$result = extArchive::extract( $archive_name, $extract_dir );
		if( !@PEAR::isError( $result )) {
			unlink( $archive_name );
		} else {
			echo '<pre style="color:white; font-weight:bold; background-color:red;">Error!
			'.$result->getMessage().'
			</pre>';
		}
		if( !is_callable( array( $database, 'loadNextRow' ))) {
	
			$database->setQuery( "SELECT id FROM #__components WHERE admin_menu_link = 'option=com_extplorer'" );
			$id = $database->loadResult();
	
			//add new admin menu images
			$database->setQuery( "UPDATE #__components SET admin_menu_img = '../administrator/components/com_extplorer/images/x_icon.png', admin_menu_link = 'option=com_extplorer' WHERE id=$id");
			$database->query();
		}
	}
}
if(!class_exists ( 'com_extplorerInstallerScript' )){
	class com_extplorerInstallerScript
	{
	 
			/**
			 * Called on installation
			 *
			 * @param   JAdapterInstance  $adapter  The object responsible for running this script
			 *
			 * @return  boolean  True on success
			 */
			public function install( $adapter){
				$adminpath = JPATH_SITE.'/administrator/components/com_extplorer';
				com_install($adminpath);
				$version = new JVersion;
				if($version->isCompatible('3.0')) rename($adminpath.'/extplorer.j30.php', $adminpath.'/extplorer.php');
				return true;
			}
			/**
			 * Called on update
			 *
			 * @param   JAdapterInstance  $adapter  The object responsible for running this script
			 *
			 * @return  boolean  True on success
			 */
			public function update( $adapter) {
				return true;
			}
	 
			/**
			 * Called on uninstallation
			 *
			 * @param   JAdapterInstance  $adapter  The object responsible for running this script
			 */
			public function uninstall( $adapter) {
				return true;
			}
			
			function preflight($type, $parent) 
			{
							// $parent is the class calling this method
							// $type is the type of change (install, update or discover_install)
			}
	
			/**
			 * method to run after an install/update/uninstall method
			 *
			 * @return void
			 */
			function postflight($type, $parent) 
			{
				$db = jfactory::getdbo();
				$db->setQuery( "UPDATE `#__menu` SET link='index.php?option=com_extplorer&tmpl=component' WHERE link = 'index.php?option=com_extplorer'" );
				$db->query();
			}
	}
}