mirror of
https://github.com/phpbb/phpbb.git
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3a4e4374dc
Hopefully someone will make some nice upload icons. :) git-svn-id: file:///svn/phpbb/trunk@3959 89ea8834-ac86-4346-8a33-228a782c2dd0
370 lines
9.2 KiB
PHP
370 lines
9.2 KiB
PHP
<?php
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/***************************************************************************
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* download.php
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* -------------------
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* begin : Thu, Apr 10, 2003
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* copyright : (C) 2003 The phpBB Group
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* email : support@phpbb.com
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*
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* $Id$
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*
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***************************************************************************/
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/***************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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***************************************************************************/
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if ( defined('IN_PHPBB') )
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{
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die('Hacking attempt');
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exit;
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}
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define('IN_PHPBB', true);
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$phpbb_root_path = './';
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include($phpbb_root_path . 'extension.inc');
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include($phpbb_root_path . 'common.'.$phpEx);
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//
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// Delete the / * to uncomment the block, and edit the values (read the comments) to
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// enable additional security to your board (preventing third site linkage)
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//
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/*
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define('ALLOWED_DENIED', 0);
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define('DENIED_ALLOWED', 1);
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//
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// From this line on you are able to edit the stuff
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//
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// Possible Values:
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// ALLOWED_DENIED <- First allow the listed sites, and then deny all others
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// DENIED_ALLOWED <- First deny the listed sites, and then allow all others
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$allow_deny_order = ALLOWED_DENIED;
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//
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// Allowed Syntax:
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// Full Domain Name -> www.phpbb.com
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// Partial Domain Names -> phpbb.com
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//
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$sites = array(
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$config['server_name'], // This is your domain
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'phpbb.com'
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);
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// This is the message displayed, if someone links to this site...
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$lang['Denied_Message'] = 'You are not authorized to view, download or link to this Site.';
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// End of editable area
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//
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// Parse the order and evaluate the array
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//
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$site = explode('?', $HTTP_SERVER_VARS['HTTP_REFERER']);
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$url = trim($site[0]);
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//$url = $HTTP_HOST;
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if ($url != '')
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{
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$allowed = ($allow_deny_order == ALLOWED_DENIED) ? FALSE : TRUE;
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for ($i = 0; $i < count($sites); $i++)
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{
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if (strstr($url, $sites[$i]))
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{
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$allowed = ($allow_deny_order == ALLOWED_DENIED) ? TRUE : FALSE;
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break;
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}
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}
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}
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else
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{
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$allowed = TRUE;
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}
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if ($allowed == FALSE)
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{
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trigger_error($lang['Denied_Message']);
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}
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// Delete the following line, to uncomment this block
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*/
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$download_id = (isset($_REQUEST['id'])) ? intval($_REQUEST['id']) : -1;
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$thumbnail = (isset($_REQUEST['thumb'])) ? intval($_REQUEST['thumb']) : false;
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function send_file_to_browser($real_filename, $mimetype, $physical_filename, $upload_dir, $attach_id)
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{
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global $_SERVER, $HTTP_USER_AGENT, $HTTP_SERVER_VARS, $user, $db, $config;
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if ($config['upload_dir'] == '')
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{
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$filename = $physical_filename;
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}
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else
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{
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$filename = $config['upload_dir'] . '/' . $physical_filename;
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}
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$gotit = FALSE;
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if (!intval($config['allow_ftp_upload']))
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{
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if (@!file_exists($filename))
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{
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trigger_error($user->lang['ERROR_NO_ATTACHMENT'] . "<br /><br />" . sprintf($user->lang['FILE_NOT_FOUND_404'], $filename));
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}
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else
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{
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$gotit = TRUE;
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}
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}
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// Determine the Browser the User is using, because of some nasty incompatibilities.
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// borrowed from phpMyAdmin. :)
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if (!empty($_SERVER['HTTP_USER_AGENT']))
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{
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$HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
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}
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else if (!empty($HTTP_SERVER_VARS['HTTP_USER_AGENT']))
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{
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$HTTP_USER_AGENT = $HTTP_SERVER_VARS['HTTP_USER_AGENT'];
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}
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else if (!isset($HTTP_USER_AGENT))
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{
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$HTTP_USER_AGENT = '';
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}
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if (ereg('Opera(/| )([0-9].[0-9]{1,2})', $HTTP_USER_AGENT, $log_version))
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{
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$browser_version = $log_version[2];
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$browser_agent = 'opera';
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}
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else if (ereg('MSIE ([0-9].[0-9]{1,2})', $HTTP_USER_AGENT, $log_version))
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{
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$browser_version = $log_version[1];
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$browser_agent = 'ie';
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}
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else if (ereg('OmniWeb/([0-9].[0-9]{1,2})', $HTTP_USER_AGENT, $log_version))
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{
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$browser_version = $log_version[1];
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$browser_agent = 'omniweb';
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}
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else if (ereg('Netscape([0-9]{1})', $HTTP_USER_AGENT, $log_version))
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{
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$browser_version = $log_version[1];
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$browser_agent = 'netscape';
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}
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else if (ereg('Mozilla/([0-9].[0-9]{1,2})', $HTTP_USER_AGENT, $log_version))
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{
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$browser_version = $log_version[1];
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$browser_agent = 'mozilla';
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}
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else if (ereg('Konqueror/([0-9].[0-9]{1,2})', $HTTP_USER_AGENT, $log_version))
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{
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$browser_version = $log_version[1];
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$browser_agent = 'konqueror';
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}
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else
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{
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$browser_version = 0;
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$browser_agent = 'other';
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}
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// Correct the Mime Type, if it's an octetstream
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if ( ($mimetype == 'application/octet-stream') || ($mimetype == 'application/octetstream') )
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{
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if ( ($browser_agent == 'ie') || ($browser_agent == 'opera') )
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{
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$mimetype = 'application/octetstream';
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}
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else
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{
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$mimetype = 'application/octet-stream';
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}
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}
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// Now the tricky part... let's dance
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@ob_end_clean();
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@ini_set('zlib.output_compression', 'Off');
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header('Pragma: public');
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header('Content-Transfer-Encoding: none');
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// Send out the Headers
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header('Content-Type: ' . $mimetype . '; name="' . $real_filename . '"');
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header('Content-Disposition: inline; filename="' . $real_filename . '"');
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/*
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header('Content-Type: ' . $mimetype . '; name="' . $real_filename . '"');
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header('Content-Disposition: attachment; filename=' . $real_filename);
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*/
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// Now send the File Contents to the Browser
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if ($gotit)
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{
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$size = @filesize($filename);
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if ($size)
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{
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header("Content-length: $size");
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}
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readfile($filename);
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}
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/* else if ((!$gotit) && (intval($config['allow_ftp_upload'])))
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{
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$conn_id = attach_init_ftp();
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$tmp_path = ( !@ini_get('safe_mode') ) ? '/tmp' : $config['upload_dir'] . '/tmp';
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$tmp_filename = @tempnam($tmp_path, 't0000');
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@unlink($tmp_filename);
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$mode = FTP_BINARY;
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if ( (preg_match("/text/i", $mimetype)) || (preg_match("/html/i", $mimetype)) )
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{
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$mode = FTP_ASCII;
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}
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$result = @ftp_get($conn_id, $tmp_filename, $filename, $mode);
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if (!$result)
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{
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trigger_error($user->lang['ERROR_NO_ATTACHMENT'] . "<br /><br />" . sprintf($user->lang['FILE_NOT_FOUND_404'], $filename));
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}
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@ftp_quit($conn_id);
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$size = @filesize($tmp_filename);
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if ($size)
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{
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header("Content-length: $size");
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}
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readfile($tmp_filename);
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@unlink($tmp_filename);
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}*/
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else
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{
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trigger_error($user->lang['ERROR_NO_ATTACHMENT'] . "<br /><br />" . sprintf($user->lang['FILE_NOT_FOUND_404'], $filename));
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}
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exit;
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}
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// Start session management
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$user->start();
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$user->setup();
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$auth->acl($user->data);
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if ($download_id == -1)
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{
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trigger_error('NO_ATTACHMENT_SELECTED');
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}
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if (!$config['allow_attachments'])
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{
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trigger_error('ATTACHMENT_FUNCTIONALITY_DISABLED');
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}
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$sql = 'SELECT *
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FROM ' . ATTACHMENTS_DESC_TABLE . '
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WHERE attach_id = ' . intval($download_id);
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$result = $db->sql_query($sql);
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if (!$attachment = $db->sql_fetchrow($result))
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{
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trigger_error('ERROR_NO_ATTACHMENT');
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}
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// get forum_id for attachment authorization or private message authorization
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$authorised = FALSE;
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// Additional query, because of more than one attachment assigned to posts and private messages
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$sql = "SELECT a.*, p.forum_id
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FROM " . ATTACHMENTS_TABLE . " a, " . POSTS_TABLE . " p
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WHERE a.attach_id = " . $attachment['attach_id'] . "
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AND (a.post_id = p.post_id OR a.post_id = 0)";
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$result = $db->sql_query($sql);
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$auth_pages = $db->sql_fetchrowset($result);
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for ($i = 0; $i < count($auth_pages) && $authorised == FALSE; $i++)
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{
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if (intval($auth_pages[$i]['post_id']) != 0)
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{
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$forum_id = $auth_pages[$i]['forum_id'];
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if ($auth->acl_get('f_download', $forum_id))
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{
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$authorised = TRUE;
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}
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}
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else
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{
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if ( (intval($config['allow_pm_attach'])) && ( ($user->data['user_id'] == $auth_pages[$i]['user_id_2']) || ($user->data['user_id'] == $auth_pages[$i]['user_id_1'])) )
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{
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$authorised = TRUE;
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}
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}
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}
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if (!$authorised)
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{
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trigger_error('SORRY_AUTH_VIEW_ATTACH');
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}
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$extensions = array();
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obtain_attach_extensions($extensions);
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// disallowed ?
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if ( (!in_array($attachment['extension'], $extensions['_allowed_'])) )
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{
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trigger_error(sprintf($lang['EXTENSION_DISABLED_AFTER_POSTING'], $attachment['extension']));
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}
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$download_mode = intval($extensions[$attachment['extension']]['download_mode']);
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if ($thumbnail)
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{
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$attachment['physical_filename'] = 'thumbs/t_' . $attachment['physical_filename'];
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}
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// Update download count
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if (!$thumbnail)
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{
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$sql = 'UPDATE ' . ATTACHMENTS_DESC_TABLE . '
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SET download_count = download_count + 1
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WHERE attach_id = ' . $attachment['attach_id'];
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$db->sql_query($sql);
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}
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// Determine the 'presenting'-method
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if ($download_mode == PHYSICAL_LINK)
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{
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if (intval($config['allow_ftp_upload']) && $config['upload_dir'] == '')
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{
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trigger_error('Physical Download not possible with the current Attachment Setting');
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}
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redirect($config['upload_dir'] . '/' . $attachment['physical_filename']);
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}
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else
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{
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if (intval($config['allow_ftp_upload']))
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{
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// We do not need a download path, we are not downloading physically
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send_file_to_browser($attachment['real_filename'], $attachment['mimetype'], $attachment['physical_filename'] , '', $attachment['attach_id']);
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exit();
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}
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else
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{
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send_file_to_browser($attachment['real_filename'], $attachment['mimetype'], $attachment['physical_filename'], $config['upload_dir'], $attachment['attach_id']);
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exit();
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}
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}
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?>
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