1<?php
2/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
3
4/**
5 * Writer to the standard output
6 * It will concatenate the files that it receive
7 * It may send some headers, but will do so only for the first file
8 *
9 * PHP versions 4 and 5
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330,Boston,MA 02111-1307 USA
24 *
25 * @category   File Formats
26 * @package    File_Archive
27 * @author     Vincent Lascaux <vincentlascaux@php.net>
28 * @copyright  1997-2005 The PHP Group
29 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL
30 * @version    CVS: $Id: Output.php,v 1.8 2005/05/30 15:25:14 vincentlascaux Exp $
31 * @link       http://pear.php.net/package/File_Archive
32 */
33
34require_once "File/Archive/Writer.php";
35
36/**
37 * Writer to the standard output
38 * It will concatenate the files that it receive
39 * It may send some headers, but will do so only for the first file
40 */
41class File_Archive_Writer_Output extends File_Archive_Writer
42{
43    /**
44     * @var    bool If true, the Content-type and Content-disposition headers
45     *         will be sent. The file will be considered as an attachment and
46     *         the MIME will be deduced from its extension
47     * @access private
48     */
49    var $sendHeaders;
50
51    /**
52     * @param $sendHeaders see the variable
53     */
54    function File_Archive_Writer_Output($sendHeaders = true)
55    {
56        $this->sendHeaders = $sendHeaders;
57    }
58    /**
59     * @see File_Archive_Writer::newFile()
60     */
61    function newFile($filename, $stat = array(), $mime = "application/octet-stream")
62    {
63        if ($this->sendHeaders) {
64            if(headers_sent()) {
65                return PEAR::raiseError(
66                    'The headers have already been sent. '.
67                    'Use File_Archive::toOutput(false) to write '.
68                    'to output without sending headers');
69            }
70
71            header("Content-type: $mime");
72            header("Content-disposition: attachment; filename=$filename");
73            $this->sendHeaders = false;
74        }
75    }
76    /**
77     * @see File_Archive_Writer::newFileNeedsMIME
78     */
79    function newFileNeedsMIME()
80    {
81        return $this->sendHeaders;
82    }
83    /**
84     * @see File_Archive_Writer::writeData()
85     */
86    function writeData($data) { echo $data; }
87    /**
88     * @see File_Archive_Writer::writeFile()
89     */
90    function writeFile($filename) { readfile($filename); }
91}
92
93?>