downloader.php

讲的是网络编程

<?php
// $Id: downloader.php 1029 2007-09-09 03:49:25Z phppp $
//  ------------------------------------------------------------------------ //
//                XOOPS - PHP Content Management System                      //
//                    Copyright (c) 2000 XOOPS.org                           //
//                       <http://www.xoops.org/>                             //
//  ------------------------------------------------------------------------ //
//  This program is free software; you can redistribute it and/or modify     //
//  it under the terms of the GNU General Public License as published by     //
//  the Free Software Foundation; either version 2 of the License, or        //
//  (at your option) any later version.                                      //
//                                                                           //
//  You may not change or alter any portion of this comment or credits       //
//  of supporting developers from this source code or any supporting         //
//  source code which is considered copyrighted (c) material of the          //
//  original comment or credit authors.                                      //
//                                                                           //
//  This program is distributed in the hope that it will be useful,          //
//  but WITHOUT ANY WARRANTY; without even the implied warranty of           //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            //
//  GNU General Public License for more details.                             //
//                                                                           //
//  You should have received a copy of the GNU General Public License        //
//  along with this program; if not, write to the Free Software              //
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA //
//  ------------------------------------------------------------------------ //
// Author: Kazumi Ono (AKA onokazu)                                          //
// URL: http://www.myweb.ne.jp/, http://www.xoops.org/, http://jp.xoops.org/ //
// Project: The XOOPS Project                                                //
// ------------------------------------------------------------------------- //
/**
 * Sends non HTML files through a http socket
 * 
 * @package     kernel
 * @subpackage  core
 * 
 * @author	    Kazumi Ono	<[e-mail]>
 * @copyright	copyright (c) 2000-2003 XOOPS.org
 */
class XoopsDownloader
{

	/**#@+
	 * file information
	 */
	var $mimetype;
	var $ext;
	var $archiver;
    /**#@-*/

	/**
	 * Constructor
	 */
	function XoopsDownloader()
	{
		//EMPTY
	}

	/**
	 * Send the HTTP header
     * 
     * @param	string  $filename
     * 
     * @access	private
	 */
	function _header($filename)
	{
		if (function_exists('mb_http_output')) {
			mb_http_output('pass');
		}
		header('Content-Type: '.$this->mimetype);
		if (preg_match("/MSIE ([0-9]\.[0-9]{1,2})/", $_SERVER['HTTP_USER_AGENT'])) {
			header('Content-Disposition: attachment; filename="'.$filename.'"');
			header('Expires: 0');
			header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
			header('Pragma: public');
		} else {
			header('Content-Disposition: attachment; filename="'.$filename.'"');
			header('Expires: 0');
			header('Pragma: no-cache');
		}
	}

	/**
	 * XoopsDownloader::addFile()
	 * 
	 * @param   string  $filepath
	 * @param   string   $newfilename
	 **/
	function addFile($filepath, $newfilename=null)
	{
		//EMPTY
	}

	/**
	 * XoopsDownloader::addBinaryFile()
	 * 
	 * @param   string  $filepath
	 * @param   string  $newfilename
	 **/
	function addBinaryFile($filepath, $newfilename=null)
	{
		//EMPTY
	}

	/**
	 * XoopsDownloader::addFileData()
	 * 
	 * @param   mixed     $data
	 * @param   string    $filename
	 * @param   integer   $time
	 **/
	function addFileData(&$data, $filename, $time=0)
	{
		//EMPTY
	}

	/**
	 * XoopsDownloader::addBinaryFileData()
	 * 
	 * @param   mixed   $data
	 * @param   string  $filename
	 * @param   integer $time
	 **/
	function addBinaryFileData(&$data, $filename, $time=0)
	{
		//EMPTY
	}

	/**
	 * XoopsDownloader::download()
	 * 
	 * @param   string  $name
	 * @param   boolean $gzip
	 **/
	function download($name, $gzip = true)
	{
		//EMPTY
	}
}
?>