View file upload/includes/functions_file.php

<?php
/*======================================================================*\
|| #################################################################### ||
|| # vBulletin 4.0.5
|| # ---------------------------------------------------------------- # ||
|| # Copyright ©2000-2010 vBulletin Solutions Inc. All Rights Reserved. ||
|| # This file may not be redistributed in whole or significant part. # ||
|| # ---------------- VBULLETIN IS NOT FREE SOFTWARE ---------------- # ||
|| # http://www.vbulletin.com | http://www.vbulletin.com/license.html # ||
|| #################################################################### ||
\*======================================================================*/

define('ATTACH_AS_DB', 0);
define('ATTACH_AS_FILES_OLD', 1);
define('ATTACH_AS_FILES_NEW', 2);

function fetch_attachmentinfo($posthash, $poststarttime, $contenttypeid, $values = array())
{
	global $vbulletin;

	return array(
		'auth_type'     => (
												empty($_SERVER['AUTH_USER'])
													AND
												empty($_SERVER['REMOTE_USER'])
											) ? 0 : 1,

		'asset_enable'  => ($vbulletin->userinfo['vbasset_enable'] ? $vbulletin->options['vbasset_enable'] : 0),

		'posthash'      => $posthash,
		'poststarttime' => $poststarttime,
		'userid'        => $vbulletin->userinfo['userid'],
		'contenttypeid' => $contenttypeid,
		'max_file_size' => fetch_max_upload_size(),
		'values'        => $values,
	);

}

// ###################### Start checkattachpath #######################
// Returns Attachment path
function fetch_attachment_path($userid, $attachmentid = 0, $thumb = false, $overridepath = '')
{
	global $vbulletin;

	if (!empty($overridepath))
	{
		$filepath =& $overridepath;
	}
	else
	{
		$filepath =& $vbulletin->options['attachpath'];
	}

	if ($vbulletin->options['attachfile'] == ATTACH_AS_FILES_NEW) // expanded paths
	{
		$path = $filepath . '/' . implode('/', preg_split('//', $userid,  -1, PREG_SPLIT_NO_EMPTY));
	}
	else
	{
		$path = $filepath . '/' . $userid;
	}

	if ($attachmentid)
	{
		if ($thumb)
		{
			$path .= '/' . $attachmentid . '.thumb';
		}
		else
		{
			$path .= '/' . $attachmentid . '.attach';
		}
	}

	return $path;
}

// ###################### Start vbmkdir ###############################
// Recursive creation of file path
function vbmkdir($path, $mode = 0777)
{
	if (is_dir($path))
	{
		if (!(is_writable($path)))
		{
			@chmod($path, $mode);
		}
		return true;
	}
	else
	{
		$oldmask = @umask(0);
		$partialpath = dirname($path);
		if (!vbmkdir($partialpath, $mode))
		{
			return false;
		}
		else
		{
			return @mkdir($path, $mode);
		}
	}
}

// ###################### Start downloadFile #######################
// must be called before outputting anything to the browser
function file_download($filestring, $filename, $filetype = 'application/octet-stream')
{
	if (!isset($isIE))
	{
		static $isIE;
		$isIE = iif(is_browser('ie') OR is_browser('opera'), true, false);
	}

	if ($isIE AND $filetype == 'application/octet-stream')
	{
		$filetype = 'application/octetstream';
	}

	if (preg_match('~&#([0-9]+);~', $filename))
	{
		if (function_exists('iconv'))
		{
			$filename = @iconv(vB_Template_Runtime::fetchStyleVar('charset'), 'UTF-8//IGNORE', $filename);
		}

		$filename = preg_replace(
			'~&#([0-9]+);~e',
			"convert_int_to_utf8('\\1')",
			$filename
		);
		$filename_charset = 'utf-8';
	}
	else
	{
		$filename_charset = vB_Template_Runtime::fetchStyleVar('charset');
	}
	$filename = preg_replace('#[\r\n]#', '', $filename);

	// Opera and IE have not a clue about this, mozilla puts on incorrect extensions.
	if (is_browser('mozilla'))
	{
		$filename = "filename*=" . $filename_charset . "''" . rawurlencode($filename);
	}
	else
	{
		// other browsers seem to want names in UTF-8
		if ($filename_charset != 'utf-8' AND function_exists('iconv'))
		{
			$filename = @iconv($filename_charset, 'UTF-8//IGNORE', $filename);
		}

		// Should just make this (!is_browser('ie'))
		if (is_browser('opera') OR is_browser('konqueror') OR is_browser('safari'))
		{
			// Opera / konqueror does not support encoded file names
			$filename = 'filename="' . str_replace('"', '', $filename) . '"';
		}
		else
		{
			// encode the filename to stay within spec
			$filename = 'filename="' . rawurlencode($filename) . '"';
		}
	}

	header('Content-Type: ' . $filetype);
	header('Expires: ' . gmdate('D, d M Y H:i:s') . ' GMT');
	header('Content-Disposition: attachment; ' . $filename);
	header('Content-Length: ' . strlen($filestring));
	header('Cache-Control: private, must-revalidate, post-check=0, pre-check=0');
	header('Pragma: public');

	echo $filestring;
	exit;
}

// ###################### Start getmaxattachsize #######################
function fetch_max_upload_size()
{
	if ($temp = @ini_get('upload_max_filesize'))
	{
		if (preg_match('#^\s*(\d+(?:\.\d+)?)\s*(?:([mkg])b?)?\s*$#i', $temp, $matches))
		{
			switch (strtolower($matches[2]))
			{
				case 'g':
					return $matches[1] * 1073741824;
				case 'm':
					return $matches[1] * 1048576;
				case 'k':
					return $matches[1] * 1024;
				default: // no g, m, k, gb, mb, kb
					return $matches[1] * 1;
			}
		}
		else
		{
			return $temp;
		}
	}
	else
	{
		return 10485760; // approx 10 megabytes :)
	}
}

// ###################### Start fetch_head_request #######################
function fetch_head_request($url)
{
	global $vbulletin;

	require_once(DIR . '/includes/class_vurl.php');
	$vurl = new vB_vURL($vbulletin);

	return $vurl->fetch_head($url);
}

// ###################### Start fetch_body_request #######################
function fetch_body_request($url, $maxsize = 0, $dieonmaxsize = false, $returnheaders = false)
{
	global $vbulletin;

	require_once(DIR . '/includes/class_vurl.php');
	$vurl = new vB_vURL($vbulletin);

	return $vurl->fetch_body($url, $maxsize, $dieonmaxsize, $returnheaders);
}

/*======================================================================*\
|| ####################################################################
|| # CVS: $RCSfile$ - $Revision: 35982 $
|| ####################################################################
\*======================================================================*/