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author	Chris Cannam
date	Sun, 07 Jul 2013 11:25:48 +0200
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+:e3e11437ecea
+<?php
+/**
+* Simple Machines Forum (SMF)
+*
+* @package SMF
+* @author Simple Machines http://www.simplemachines.org
+* @copyright 2011 Simple Machines
+* @license http://www.simplemachines.org/about/smf/license.php BSD
+*
+* @version 2.0.1
+*/
+if (!defined('SMF'))
+	die('Hacking attempt...');
+/*	This file's central purpose of existence is that of making the package
+	manager work nicely.  It contains functions for handling tar.gz and zip
+	files, as well as a simple xml parser to handle the xml package stuff.
+	Not to mention a few functions to make file handling easier.
+	array read_tgz_file(string filename, string destination,
+			bool single_file = false, bool overwrite = false, array files_to_extract = null)
+		- reads a .tar.gz file, filename, in and extracts file(s) from it.
+		- essentially just a shortcut for read_tgz_data().
+	array read_tgz_data(string data, string destination,
+			bool single_file = false, bool overwrite = false, array files_to_extract = null)
+		- extracts a file or files from the .tar.gz contained in data.
+		- detects if the file is really a .zip file, and if so returns the
+		  result of read_zip_data
+		- if destination is null, returns a list of files in the archive.
+		- if single_file is true, returns the contents of the file specified
+		  by destination, if it exists, or false.
+		- if single_file is true, destination can start with * and / to
+		  signify that the file may come from any directory.
+		- destination should not begin with a / if single_file is true.
+		- overwrites existing files with newer modification times if and
+		  only if overwrite is true.
+		- creates the destination directory if it doesn't exist, and is
+		  is specified.
+		- requires zlib support be built into PHP.
+		- returns an array of the files extracted.
+		- if files_to_extract is not equal to null only extracts file within this array.
+	array read_zip_data(string data, string destination,
+			bool single_file = false, bool overwrite = false, array files_to_extract = null)
+		- extracts a file or files from the .zip contained in data.
+		- if destination is null, returns a list of files in the archive.
+		- if single_file is true, returns the contents of the file specified
+		  by destination, if it exists, or false.
+		- if single_file is true, destination can start with * and / to
+		  signify that the file may come from any directory.
+		- destination should not begin with a / if single_file is true.
+		- overwrites existing files with newer modification times if and
+		  only if overwrite is true.
+		- creates the destination directory if it doesn't exist, and is
+		  is specified.
+		- requires zlib support be built into PHP.
+		- returns an array of the files extracted.
+		- if files_to_extract is not equal to null only extracts file within this array.
+	bool url_exists(string url)
+		- checks to see if url is valid, and returns a 200 status code.
+		- will return false if the file is "moved permanently" or similar.
+		- returns true if the remote url exists.
+	array loadInstalledPackages()
+		- loads and returns an array of installed packages.
+		- gets this information from Packages/installed.list.
+		- returns the array of data.
+	array getPackageInfo(string filename)
+		- loads a package's information and returns a representative array.
+		- expects the file to be a package in Packages/.
+		- returns a error string if the package-info is invalid.
+		- returns a basic array of id, version, filename, and similar
+		  information.
+		- in the array returned, an xmlArray is available in 'xml'.
+	void packageRequireFTP(string destination_url, array files = none, bool return = false)
+		// !!!
+	array parsePackageInfo(xmlArray &package, bool testing_only = true,
+			string method = 'install', string previous_version = '')
+		- parses the actions in package-info.xml files from packages.
+		- package should be an xmlArray with package-info as its base.
+		- testing_only should be true if the package should not actually be
+		   applied.
+		- method is upgrade, install, or uninstall.  Its default is install.
+		- previous_version should be set to the previous installed version
+		   of this package, if any.
+		- does not handle failure terribly well; testing first is always
+		   better.
+		- returns an array of those changes made.
+	bool matchPackageVersion(string version, string versions)
+		- checks if version matches any of the versions in versions.
+		- supports comma separated version numbers, with or without
+		  whitespace.
+		- supports lower and upper bounds. (1.0-1.2)
+		- returns true if the version matched.
+	int compareVersions(string version1, string version2)
+		- compares two versions.
+		- returns 0 if version1 is equal to version2.
+		- returns -1 if version1 is lower than version2.
+		- returns 1 if version1 is higher than version2.
+	string parse_path(string path)
+		- parses special identifiers out of the specified path.
+		- returns the parsed path.
+	void deltree(string path, bool delete_directory = true)
+		- deletes a directory, and all the files and direcories inside it.
+		- requires access to delete these files.
+	bool mktree(string path, int mode)
+		- creates the specified tree structure with the mode specified.
+		- creates every directory in path until it finds one that already
+		  exists.
+		- returns true if successful, false otherwise.
+	void copytree(string source, string destination)
+		- copies one directory structure over to another.
+		- requires the destination to be writable.
+	void listtree(string path, string sub_path = none)
+		// !!!
+	array parseModification(string file, bool testing = true, bool undo = false, array theme_paths = array())
+		- parses a xml-style modification file (file).
+		- testing tells it the modifications shouldn't actually be saved.
+		- undo specifies that the modifications the file requests should be
+		  undone; this doesn't work with everything (regular expressions.)
+		- returns an array of those changes made.
+	array parseBoardMod(string file, bool testing = true, bool undo = false, array theme_paths = array())
+		- parses a boardmod-style modification file (file).
+		- testing tells it the modifications shouldn't actually be saved.
+		- undo specifies that the modifications the file requests should be
+		  undone.
+		- returns an array of those changes made.
+	// !!!
+	int package_put_contents(string filename, string data)
+		- writes data to a file, almost exactly like the file_put_contents()
+		  function.
+		- uses FTP to create/chmod the file when necessary and available.
+		- uses text mode for text mode file extensions.
+		- returns the number of bytes written.
+	void package_chmod(string filename)
+		// !!!
+	string package_crypt(string password)
+		// !!!
+	string fetch_web_data(string url, string post_data = '',
+			bool keep_alive = false)
+		// !!!
+	Creating your own package server:
+	---------------------------------------------------------------------------
+		// !!!
+	Creating your own package:
+	---------------------------------------------------------------------------
+		// !!!
+*/
+// Get the data from the file and extract it.
+function read_tgz_file($gzfilename, $destination, $single_file = false, $overwrite = false, $files_to_extract = null)
+{
+	if (substr($gzfilename, 0, 7) == 'http://')
+	{
+		$data = fetch_web_data($gzfilename);
+		if ($data === false)
+			return false;
+	}
+	else
+	{
+		$data = @file_get_contents($gzfilename);
+		if ($data === false)
+			return false;
+	}
+	return read_tgz_data($data, $destination, $single_file, $overwrite, $files_to_extract);
+}
+// Extract tar.gz data.  If destination is null, return a listing.
+function read_tgz_data($data, $destination, $single_file = false, $overwrite = false, $files_to_extract = null)
+{
+	// Make sure we have this loaded.
+	loadLanguage('Packages');
+	// This function sorta needs gzinflate!
+	if (!function_exists('gzinflate'))
+		fatal_lang_error('package_no_zlib', 'critical');
+	umask(0);
+	if (!$single_file && $destination !== null && !file_exists($destination))
+		mktree($destination, 0777);
+	// No signature?
+	if (strlen($data) < 2)
+		return false;
+	$id = unpack('H2a/H2b', substr($data, 0, 2));
+	if (strtolower($id['a'] . $id['b']) != '1f8b')
+	{
+		// Okay, this ain't no tar.gz, but maybe it's a zip file.
+		if (substr($data, 0, 2) == 'PK')
+			return read_zip_data($data, $destination, $single_file, $overwrite, $files_to_extract);
+		else
+			return false;
+	}
+	$flags = unpack('Ct/Cf', substr($data, 2, 2));
+	// Not deflate!
+	if ($flags['t'] != 8)
+		return false;
+	$flags = $flags['f'];
+	$offset = 10;
+	$octdec = array('mode', 'uid', 'gid', 'size', 'mtime', 'checksum', 'type');
+	// "Read" the filename and comment. // !!! Might be mussed.
+	if ($flags & 12)
+	{
+		while ($flags & 8 && $data{$offset++} != "\0")
+			continue;
+		while ($flags & 4 && $data{$offset++} != "\0")
+			continue;
+	}
+	$crc = unpack('Vcrc32/Visize', substr($data, strlen($data) - 8, 8));
+	$data = @gzinflate(substr($data, $offset, strlen($data) - 8 - $offset));
+	// smf_crc32 and crc32 may not return the same results, so we accept either.
+	if ($crc['crc32'] != smf_crc32($data) && $crc['crc32'] != crc32($data))
+		return false;
+	$blocks = strlen($data) / 512 - 1;
+	$offset = 0;
+	$return = array();
+	while ($offset < $blocks)
+	{
+		$header = substr($data, $offset << 9, 512);
+		$current = unpack('a100filename/a8mode/a8uid/a8gid/a12size/a12mtime/a8checksum/a1type/a100linkname/a6magic/a2version/a32uname/a32gname/a8devmajor/a8devminor/a155path', $header);
+		// Blank record?  This is probably at the end of the file.
+		if (empty($current['filename']))
+		{
+			$offset += 512;
+			continue;
+		}
+		if ($current['type'] == 5 && substr($current['filename'], -1) != '/')
+			$current['filename'] .= '/';
+		foreach ($current as $k => $v)
+		{
+			if (in_array($k, $octdec))
+				$current[$k] = octdec(trim($v));
+			else
+				$current[$k] = trim($v);
+		}
+		$checksum = 256;
+		for ($i = 0; $i < 148; $i++)
+			$checksum += ord($header{$i});
+		for ($i = 156; $i < 512; $i++)
+			$checksum += ord($header{$i});
+		if ($current['checksum'] != $checksum)
+			break;
+		$size = ceil($current['size'] / 512);
+		$current['data'] = substr($data, ++$offset << 9, $current['size']);
+		$offset += $size;
+		// Not a directory and doesn't exist already...
+		if (substr($current['filename'], -1, 1) != '/' && !file_exists($destination . '/' . $current['filename']))
+			$write_this = true;
+		// File exists... check if it is newer.
+		elseif (substr($current['filename'], -1, 1) != '/')
+			$write_this = $overwrite || filemtime($destination . '/' . $current['filename']) < $current['mtime'];
+		// Folder... create.
+		elseif ($destination !== null && !$single_file)
+		{
+			// Protect from accidental parent directory writing...
+			$current['filename'] = strtr($current['filename'], array('../' => '', '/..' => ''));
+			if (!file_exists($destination . '/' . $current['filename']))
+				mktree($destination . '/' . $current['filename'], 0777);
+			$write_this = false;
+		}
+		else
+			$write_this = false;
+		if ($write_this && $destination !== null)
+		{
+			if (strpos($current['filename'], '/') !== false && !$single_file)
+				mktree($destination . '/' . dirname($current['filename']), 0777);
+			// Is this the file we're looking for?
+			if ($single_file && ($destination == $current['filename'] || $destination == '*/' . basename($current['filename'])))
+				return $current['data'];
+			// If we're looking for another file, keep going.
+			elseif ($single_file)
+				continue;
+			// Looking for restricted files?
+			elseif ($files_to_extract !== null && !in_array($current['filename'], $files_to_extract))
+				continue;
+			package_put_contents($destination . '/' . $current['filename'], $current['data']);
+		}
+		if (substr($current['filename'], -1, 1) != '/')
+			$return[] = array(
+				'filename' => $current['filename'],
+				'md5' => md5($current['data']),
+				'preview' => substr($current['data'], 0, 100),
+				'size' => $current['size'],
+				'skipped' => false
+			);
+	}
+	if ($destination !== null && !$single_file)
+		package_flush_cache();
+	if ($single_file)
+		return false;
+	else
+		return $return;
+}
+// Extract zip data.  If destination is null, return a listing.
+function read_zip_data($data, $destination, $single_file = false, $overwrite = false, $files_to_extract = null)
+{
+	umask(0);
+	if ($destination !== null && !file_exists($destination) && !$single_file)
+		mktree($destination, 0777);
+	// Look for the PK header...
+	if (substr($data, 0, 2) != 'PK')
+		return false;
+	// Find the central whosamawhatsit at the end; if there's a comment it's a pain.
+	if (substr($data, -22, 4) == 'PK' . chr(5) . chr(6))
+		$p = -22;
+	else
+	{
+		// Have to find where the comment begins, ugh.
+		for ($p = -22; $p > -strlen($data); $p--)
+		{
+			if (substr($data, $p, 4) == 'PK' . chr(5) . chr(6))
+				break;
+		}
+	}
+	$return = array();
+	// Get the basic zip file info.
+	$zip_info = unpack('vfiles/Vsize/Voffset', substr($data, $p + 10, 10));
+	$p = $zip_info['offset'];
+	for ($i = 0; $i < $zip_info['files']; $i++)
+	{
+		// Make sure this is a file entry...
+		if (substr($data, $p, 4) != 'PK' . chr(1) . chr(2))
+			return false;
+		// Get all the important file information.
+		$file_info = unpack('Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len/vcomment_len/vdisk/vinternal/Vexternal/Voffset', substr($data, $p + 16, 30));
+		$file_info['filename'] = substr($data, $p + 46, $file_info['filename_len']);
+		// Skip all the information we don't care about anyway.
+		$p += 46 + $file_info['filename_len'] + $file_info['extra_len'] + $file_info['comment_len'];
+		// If this is a file, and it doesn't exist.... happy days!
+		if (substr($file_info['filename'], -1, 1) != '/' && !file_exists($destination . '/' . $file_info['filename']))
+			$write_this = true;
+		// If the file exists, we may not want to overwrite it.
+		elseif (substr($file_info['filename'], -1, 1) != '/')
+			$write_this = $overwrite;
+		// This is a directory, so we're gonna want to create it. (probably...)
+		elseif ($destination !== null && !$single_file)
+		{
+			// Just a little accident prevention, don't mind me.
+			$file_info['filename'] = strtr($file_info['filename'], array('../' => '', '/..' => ''));
+			if (!file_exists($destination . '/' . $file_info['filename']))
+				mktree($destination . '/' . $file_info['filename'], 0777);
+			$write_this = false;
+		}
+		else
+			$write_this = false;
+		// Check that the data is there and does exist.
+		if (substr($data, $file_info['offset'], 4) != 'PK' . chr(3) . chr(4))
+			return false;
+		// Get the actual compressed data.
+		$file_info['data'] = substr($data, $file_info['offset'] + 30 + $file_info['filename_len'], $file_info['compressed_size']);
+		// Only inflate it if we need to ;).
+		if ($file_info['compressed_size'] != $file_info['size'])
+			$file_info['data'] = @gzinflate($file_info['data']);
+		// Okay!  We can write this file, looks good from here...
+		if ($write_this && $destination !== null)
+		{
+			if (strpos($file_info['filename'], '/') !== false && !$single_file)
+				mktree($destination . '/' . dirname($file_info['filename']), 0777);
+			// If we're looking for a specific file, and this is it... ka-bam, baby.
+			if ($single_file && ($destination == $file_info['filename'] || $destination == '*/' . basename($file_info['filename'])))
+				return $file_info['data'];
+			// Oh?  Another file.  Fine.  You don't like this file, do you?  I know how it is.  Yeah... just go away.  No, don't apologize.  I know this file's just not *good enough* for you.
+			elseif ($single_file)
+				continue;
+			// Don't really want this?
+			elseif ($files_to_extract !== null && !in_array($file_info['filename'], $files_to_extract))
+				continue;
+			package_put_contents($destination . '/' . $file_info['filename'], $file_info['data']);
+		}
+		if (substr($file_info['filename'], -1, 1) != '/')
+			$return[] = array(
+				'filename' => $file_info['filename'],
+				'md5' => md5($file_info['data']),
+				'preview' => substr($file_info['data'], 0, 100),
+				'size' => $file_info['size'],
+				'skipped' => false
+			);
+	}
+	if ($destination !== null && !$single_file)
+		package_flush_cache();
+	if ($single_file)
+		return false;
+	else
+		return $return;
+}
+// Checks the existence of a remote file since file_exists() does not do remote.
+function url_exists($url)
+{
+	$a_url = parse_url($url);
+	if (!isset($a_url['scheme']))
+		return false;
+	// Attempt to connect...
+	$temp = '';
+	$fid = fsockopen($a_url['host'], !isset($a_url['port']) ? 80 : $a_url['port'], $temp, $temp, 8);
+	if (!$fid)
+		return false;
+	fputs($fid, 'HEAD ' . $a_url['path'] . ' HTTP/1.0' . "\r\n" . 'Host: ' . $a_url['host'] . "\r\n\r\n");
+	$head = fread($fid, 1024);
+	fclose($fid);
+	return preg_match('~^HTTP/.+\s+(20[01]|30[127])~i', $head) == 1;
+}
+// Load the installed packages.
+function loadInstalledPackages()
+{
+	global $boarddir, $smcFunc;
+	// First, check that the database is valid, installed.list is still king.
+	$install_file = implode('', file($boarddir . '/Packages/installed.list'));
+	if (trim($install_file) == '')
+	{
+		$smcFunc['db_query']('', '
+			UPDATE {db_prefix}log_packages
+			SET install_state = {int:not_installed}',
+			array(
+				'not_installed' => 0,
+			)
+		);
+		// Don't have anything left, so send an empty array.
+		return array();
+	}
+	// Load the packages from the database - note this is ordered by install time to ensure latest package uninstalled first.
+	$request = $smcFunc['db_query']('', '
+		SELECT id_install, package_id, filename, name, version
+		FROM {db_prefix}log_packages
+		WHERE install_state != {int:not_installed}
+		ORDER BY time_installed DESC',
+		array(
+			'not_installed' => 0,
+		)
+	);
+	$installed = array();
+	$found = array();
+	while ($row = $smcFunc['db_fetch_assoc']($request))
+	{
+		// Already found this? If so don't add it twice!
+		if (in_array($row['package_id'], $found))
+			continue;
+		$found[] = $row['package_id'];
+		$installed[] = array(
+			'id' => $row['id_install'],
+			'name' => $row['name'],
+			'filename' => $row['filename'],
+			'package_id' => $row['package_id'],
+			'version' => $row['version'],
+		);
+	}
+	$smcFunc['db_free_result']($request);
+	return $installed;
+}
+function getPackageInfo($gzfilename)
+{
+	global $boarddir;
+	// Extract package-info.xml from downloaded file. (*/ is used because it could be in any directory.)
+	if (strpos($gzfilename, 'http://') !== false)
+		$packageInfo = read_tgz_data(fetch_web_data($gzfilename, '', true), '*/package-info.xml', true);
+	else
+	{
+		if (!file_exists($boarddir . '/Packages/' . $gzfilename))
+			return 'package_get_error_not_found';
+		if (is_file($boarddir . '/Packages/' . $gzfilename))
+			$packageInfo = read_tgz_file($boarddir . '/Packages/' . $gzfilename, '*/package-info.xml', true);
+		elseif (file_exists($boarddir . '/Packages/' . $gzfilename . '/package-info.xml'))
+			$packageInfo = file_get_contents($boarddir . '/Packages/' . $gzfilename . '/package-info.xml');
+		else
+			return 'package_get_error_missing_xml';
+	}
+	// Nothing?
+	if (empty($packageInfo))
+		return 'package_get_error_is_zero';
+	// Parse package-info.xml into an xmlArray.
+	loadClassFile('Class-Package.php');
+	$packageInfo = new xmlArray($packageInfo);
+	// !!! Error message of some sort?
+	if (!$packageInfo->exists('package-info[0]'))
+		return 'package_get_error_packageinfo_corrupt';
+	$packageInfo = $packageInfo->path('package-info[0]');
+	$package = $packageInfo->to_array();
+	$package['xml'] = $packageInfo;
+	$package['filename'] = $gzfilename;
+	if (!isset($package['type']))
+		$package['type'] = 'modification';
+	return $package;
+}
+// Create a chmod control for chmoding files.
+function create_chmod_control($chmodFiles = array(), $chmodOptions = array(), $restore_write_status = false)
+{
+	global $context, $modSettings, $package_ftp, $boarddir, $txt, $sourcedir, $scripturl;
+	// If we're restoring the status of existing files prepare the data.
+	if ($restore_write_status && isset($_SESSION['pack_ftp']) && !empty($_SESSION['pack_ftp']['original_perms']))
+	{
+		function list_restoreFiles($dummy1, $dummy2, $dummy3, $do_change)
+		{
+			global $txt;
+			$restore_files = array();
+			foreach ($_SESSION['pack_ftp']['original_perms'] as $file => $perms)
+			{
+				// Check the file still exists, and the permissions were indeed different than now.
+				$file_permissions = @fileperms($file);
+				if (!file_exists($file) || $file_permissions == $perms)
+				{
+					unset($_SESSION['pack_ftp']['original_perms'][$file]);
+					continue;
+				}
+				// Are we wanting to change the permission?
+				if ($do_change && isset($_POST['restore_files']) && in_array($file, $_POST['restore_files']))
+				{
+					// Use FTP if we have it.
+					if (!empty($package_ftp))
+					{
+						$ftp_file = strtr($file, array($_SESSION['pack_ftp']['root'] => ''));
+						$package_ftp->chmod($ftp_file, $perms);
+					}
+					else
+						@chmod($file, $perms);
+					$new_permissions = @fileperms($file);
+					$result = $new_permissions == $perms ? 'success' : 'failure';
+					unset($_SESSION['pack_ftp']['original_perms'][$file]);
+				}
+				elseif ($do_change)
+				{
+					$new_permissions = '';
+					$result = 'skipped';
+					unset($_SESSION['pack_ftp']['original_perms'][$file]);
+				}
+				// Record the results!
+				$restore_files[] = array(
+					'path' => $file,
+					'old_perms_raw' => $perms,
+					'old_perms' => substr(sprintf('%o', $perms), -4),
+					'cur_perms' => substr(sprintf('%o', $file_permissions), -4),
+					'new_perms' => isset($new_permissions) ? substr(sprintf('%o', $new_permissions), -4) : '',
+					'result' => isset($result) ? $result : '',
+					'writable_message' => '<span style="color: ' . (@is_writable($file) ? 'green' : 'red') . '">' . (@is_writable($file) ? $txt['package_file_perms_writable'] : $txt['package_file_perms_not_writable']) . '</span>',
+				);
+			}
+			return $restore_files;
+		}
+		$listOptions = array(
+			'id' => 'restore_file_permissions',
+			'title' => $txt['package_restore_permissions'],
+			'get_items' => array(
+				'function' => 'list_restoreFiles',
+				'params' => array(
+					!empty($_POST['restore_perms']),
+				),
+			),
+			'columns' => array(
+				'path' => array(
+					'header' => array(
+						'value' => $txt['package_restore_permissions_filename'],
+					),
+					'data' => array(
+						'db' => 'path',
+						'class' => 'smalltext',
+					),
+				),
+				'old_perms' => array(
+					'header' => array(
+						'value' => $txt['package_restore_permissions_orig_status'],
+					),
+					'data' => array(
+						'db' => 'old_perms',
+						'class' => 'smalltext',
+					),
+				),
+				'cur_perms' => array(
+					'header' => array(
+						'value' => $txt['package_restore_permissions_cur_status'],
+					),
+					'data' => array(
+						'function' => create_function('$rowData', '
+							global $txt;
+							$formatTxt = $rowData[\'result\'] == \'\' || $rowData[\'result\'] == \'skipped\' ? $txt[\'package_restore_permissions_pre_change\'] : $txt[\'package_restore_permissions_post_change\'];
+							return sprintf($formatTxt, $rowData[\'cur_perms\'], $rowData[\'new_perms\'], $rowData[\'writable_message\']);
+						'),
+						'class' => 'smalltext',
+					),
+				),
+				'check' => array(
+					'header' => array(
+						'value' => '<input type="checkbox" onclick="invertAll(this, this.form);" class="input_check" />',
+					),
+					'data' => array(
+						'sprintf' => array(
+							'format' => '<input type="checkbox" name="restore_files[]" value="%1$s" class="input_check" />',
+							'params' => array(
+								'path' => false,
+							),
+						),
+						'style' => 'text-align: center',
+					),
+				),
+				'result' => array(
+					'header' => array(
+						'value' => $txt['package_restore_permissions_result'],
+					),
+					'data' => array(
+						'function' => create_function('$rowData', '
+							global $txt;
+							return $txt[\'package_restore_permissions_action_\' . $rowData[\'result\']];
+						'),
+						'class' => 'smalltext',
+					),
+				),
+			),
+			'form' => array(
+				'href' => !empty($chmodOptions['destination_url']) ? $chmodOptions['destination_url'] : $scripturl . '?action=admin;area=packages;sa=perms;restore;' . $context['session_var'] . '=' . $context['session_id'],
+			),
+			'additional_rows' => array(
+				array(
+					'position' => 'below_table_data',
+					'value' => '<input type="submit" name="restore_perms" value="' . $txt['package_restore_permissions_restore'] . '" class="button_submit" />',
+					'class' => 'titlebg',
+					'style' => 'text-align: right;',
+				),
+				array(
+					'position' => 'after_title',
+					'value' => '<span class="smalltext">' . $txt['package_restore_permissions_desc'] . '</span>',
+					'class' => 'windowbg2',
+				),
+			),
+		);
+		// Work out what columns and the like to show.
+		if (!empty($_POST['restore_perms']))
+		{
+			$listOptions['additional_rows'][1]['value'] = sprintf($txt['package_restore_permissions_action_done'], $scripturl . '?action=admin;area=packages;sa=perms;' . $context['session_var'] . '=' . $context['session_id']);
+			unset($listOptions['columns']['check'], $listOptions['form'], $listOptions['additional_rows'][0]);
+			$context['sub_template'] = 'show_list';
+			$context['default_list'] = 'restore_file_permissions';
+		}
+		else
+		{
+			unset($listOptions['columns']['result']);
+		}
+		// Create the list for display.
+		require_once($sourcedir . '/Subs-List.php');
+		createList($listOptions);
+		// If we just restored permissions then whereever we are, we are now done and dusted.
+		if (!empty($_POST['restore_perms']))
+			obExit();
+	}
+	// Otherwise, it's entirely irrelevant?
+	elseif ($restore_write_status)
+		return true;
+	// This is where we report what we got up to.
+	$return_data = array(
+		'files' => array(
+			'writable' => array(),
+			'notwritable' => array(),
+		),
+	);
+	// If we have some FTP information already, then let's assume it was required and try to get ourselves connected.
+	if (!empty($_SESSION['pack_ftp']['connected']))
+	{
+		// Load the file containing the ftp_connection class.
+		loadClassFile('Class-Package.php');
+		$package_ftp = new ftp_connection($_SESSION['pack_ftp']['server'], $_SESSION['pack_ftp']['port'], $_SESSION['pack_ftp']['username'], package_crypt($_SESSION['pack_ftp']['password']));
+	}
+	// Just got a submission did we?
+	if (empty($package_ftp) && isset($_POST['ftp_username']))
+	{
+		loadClassFile('Class-Package.php');
+		$ftp = new ftp_connection($_POST['ftp_server'], $_POST['ftp_port'], $_POST['ftp_username'], $_POST['ftp_password']);
+		// We're connected, jolly good!
+		if ($ftp->error === false)
+		{
+			// Common mistake, so let's try to remedy it...
+			if (!$ftp->chdir($_POST['ftp_path']))
+			{
+				$ftp_error = $ftp->last_message;
+				$ftp->chdir(preg_replace('~^/home[2]?/[^/]+?~', '', $_POST['ftp_path']));
+			}
+			if (!in_array($_POST['ftp_path'], array('', '/')))
+			{
+				$ftp_root = strtr($boarddir, array($_POST['ftp_path'] => ''));
+				if (substr($ftp_root, -1) == '/' && ($_POST['ftp_path'] == '' || substr($_POST['ftp_path'], 0, 1) == '/'))
+					$ftp_root = substr($ftp_root, 0, -1);
+			}
+			else
+				$ftp_root = $boarddir;
+			$_SESSION['pack_ftp'] = array(
+				'server' => $_POST['ftp_server'],
+				'port' => $_POST['ftp_port'],
+				'username' => $_POST['ftp_username'],
+				'password' => package_crypt($_POST['ftp_password']),
+				'path' => $_POST['ftp_path'],
+				'root' => $ftp_root,
+				'connected' => true,
+			);
+			if (!isset($modSettings['package_path']) || $modSettings['package_path'] != $_POST['ftp_path'])
+				updateSettings(array('package_path' => $_POST['ftp_path']));
+			// This is now the primary connection.
+			$package_ftp = $ftp;
+		}
+	}
+	// Now try to simply make the files writable, with whatever we might have.
+	if (!empty($chmodFiles))
+	{
+		foreach ($chmodFiles as $k => $file)
+		{
+			// Sometimes this can somehow happen maybe?
+			if (empty($file))
+				unset($chmodFiles[$k]);
+			// Already writable?
+			elseif (@is_writable($file))
+				$return_data['files']['writable'][] = $file;
+			else
+			{
+				// Now try to change that.
+				$return_data['files'][package_chmod($file, 'writable', true) ? 'writable' : 'notwritable'][] = $file;
+			}
+		}
+	}
+	// Have we still got nasty files which ain't writable? Dear me we need more FTP good sir.
+	if (empty($package_ftp) && (!empty($return_data['files']['notwritable']) || !empty($chmodOptions['force_find_error'])))
+	{
+		if (!isset($ftp) || $ftp->error !== false)
+		{
+			if (!isset($ftp))
+			{
+				loadClassFile('Class-Package.php');
+				$ftp = new ftp_connection(null);
+			}
+			elseif ($ftp->error !== false && !isset($ftp_error))
+				$ftp_error = $ftp->last_message === null ? '' : $ftp->last_message;
+			list ($username, $detect_path, $found_path) = $ftp->detect_path($boarddir);
+			if ($found_path)
+				$_POST['ftp_path'] = $detect_path;
+			elseif (!isset($_POST['ftp_path']))
+				$_POST['ftp_path'] = isset($modSettings['package_path']) ? $modSettings['package_path'] : $detect_path;
+			if (!isset($_POST['ftp_username']))
+				$_POST['ftp_username'] = $username;
+		}
+		$context['package_ftp'] = array(
+			'server' => isset($_POST['ftp_server']) ? $_POST['ftp_server'] : (isset($modSettings['package_server']) ? $modSettings['package_server'] : 'localhost'),
+			'port' => isset($_POST['ftp_port']) ? $_POST['ftp_port'] : (isset($modSettings['package_port']) ? $modSettings['package_port'] : '21'),
+			'username' => isset($_POST['ftp_username']) ? $_POST['ftp_username'] : (isset($modSettings['package_username']) ? $modSettings['package_username'] : ''),
+			'path' => $_POST['ftp_path'],
+			'error' => empty($ftp_error) ? null : $ftp_error,
+			'destination' => !empty($chmodOptions['destination_url']) ? $chmodOptions['destination_url'] : '',
+		);
+		// Which files failed?
+		if (!isset($context['notwritable_files']))
+			$context['notwritable_files'] = array();
+		$context['notwritable_files'] = array_merge($context['notwritable_files'], $return_data['files']['notwritable']);
+		// Sent here to die?
+		if (!empty($chmodOptions['crash_on_error']))
+		{
+			$context['page_title'] = $txt['package_ftp_necessary'];
+			$context['sub_template'] = 'ftp_required';
+			obExit();
+		}
+	}
+	return $return_data;
+}
+function packageRequireFTP($destination_url, $files = null, $return = false)
+{
+	global $context, $modSettings, $package_ftp, $boarddir, $txt;
+	// Try to make them writable the manual way.
+	if ($files !== null)
+	{
+		foreach ($files as $k => $file)
+		{
+			// If this file doesn't exist, then we actually want to look at the directory, no?
+			if (!file_exists($file))
+				$file = dirname($file);
+			// This looks odd, but it's an attempt to work around PHP suExec.
+			if (!@is_writable($file))
+				@chmod($file, 0755);
+			if (!@is_writable($file))
+				@chmod($file, 0777);
+			if (!@is_writable(dirname($file)))
+				@chmod($file, 0755);
+			if (!@is_writable(dirname($file)))
+				@chmod($file, 0777);
+			$fp = is_dir($file) ? @opendir($file) : @fopen($file, 'rb');
+			if (@is_writable($file) && $fp)
+			{
+				unset($files[$k]);
+				if (!is_dir($file))
+					fclose($fp);
+				else
+					closedir($fp);
+			}
+		}
+		// No FTP required!
+		if (empty($files))
+			return array();
+	}
+	// They've opted to not use FTP, and try anyway.
+	if (isset($_SESSION['pack_ftp']) && $_SESSION['pack_ftp'] == false)
+	{
+		if ($files === null)
+			return array();
+		foreach ($files as $k => $file)
+		{
+			// This looks odd, but it's an attempt to work around PHP suExec.
+			if (!file_exists($file))
+			{
+				mktree(dirname($file), 0755);
+				@touch($file);
+				@chmod($file, 0755);
+			}
+			if (!@is_writable($file))
+				@chmod($file, 0777);
+			if (!@is_writable(dirname($file)))
+				@chmod(dirname($file), 0777);
+			if (@is_writable($file))
+				unset($files[$k]);
+		}
+		return $files;
+	}
+	elseif (isset($_SESSION['pack_ftp']))
+	{
+		// Load the file containing the ftp_connection class.
+		loadClassFile('Class-Package.php');
+		$package_ftp = new ftp_connection($_SESSION['pack_ftp']['server'], $_SESSION['pack_ftp']['port'], $_SESSION['pack_ftp']['username'], package_crypt($_SESSION['pack_ftp']['password']));
+		if ($files === null)
+			return array();
+		foreach ($files as $k => $file)
+		{
+			$ftp_file = strtr($file, array($_SESSION['pack_ftp']['root'] => ''));
+			// This looks odd, but it's an attempt to work around PHP suExec.
+			if (!file_exists($file))
+			{
+				mktree(dirname($file), 0755);
+				$package_ftp->create_file($ftp_file);
+				$package_ftp->chmod($ftp_file, 0755);
+			}
+			if (!@is_writable($file))
+				$package_ftp->chmod($ftp_file, 0777);
+			if (!@is_writable(dirname($file)))
+				$package_ftp->chmod(dirname($ftp_file), 0777);
+			if (@is_writable($file))
+				unset($files[$k]);
+		}
+		return $files;
+	}
+	if (isset($_POST['ftp_none']))
+	{
+		$_SESSION['pack_ftp'] = false;
+		$files = packageRequireFTP($destination_url, $files, $return);
+		return $files;
+	}
+	elseif (isset($_POST['ftp_username']))
+	{
+		loadClassFile('Class-Package.php');
+		$ftp = new ftp_connection($_POST['ftp_server'], $_POST['ftp_port'], $_POST['ftp_username'], $_POST['ftp_password']);
+		if ($ftp->error === false)
+		{
+			// Common mistake, so let's try to remedy it...
+			if (!$ftp->chdir($_POST['ftp_path']))
+			{
+				$ftp_error = $ftp->last_message;
+				$ftp->chdir(preg_replace('~^/home[2]?/[^/]+?~', '', $_POST['ftp_path']));
+			}
+		}
+	}
+	if (!isset($ftp) || $ftp->error !== false)
+	{
+		if (!isset($ftp))
+		{
+			loadClassFile('Class-Package.php');
+			$ftp = new ftp_connection(null);
+		}
+		elseif ($ftp->error !== false && !isset($ftp_error))
+			$ftp_error = $ftp->last_message === null ? '' : $ftp->last_message;
+		list ($username, $detect_path, $found_path) = $ftp->detect_path($boarddir);
+		if ($found_path)
+			$_POST['ftp_path'] = $detect_path;
+		elseif (!isset($_POST['ftp_path']))
+			$_POST['ftp_path'] = isset($modSettings['package_path']) ? $modSettings['package_path'] : $detect_path;
+		if (!isset($_POST['ftp_username']))
+			$_POST['ftp_username'] = $username;
+		$context['package_ftp'] = array(
+			'server' => isset($_POST['ftp_server']) ? $_POST['ftp_server'] : (isset($modSettings['package_server']) ? $modSettings['package_server'] : 'localhost'),
+			'port' => isset($_POST['ftp_port']) ? $_POST['ftp_port'] : (isset($modSettings['package_port']) ? $modSettings['package_port'] : '21'),
+			'username' => isset($_POST['ftp_username']) ? $_POST['ftp_username'] : (isset($modSettings['package_username']) ? $modSettings['package_username'] : ''),
+			'path' => $_POST['ftp_path'],
+			'error' => empty($ftp_error) ? null : $ftp_error,
+			'destination' => $destination_url,
+		);
+		// If we're returning dump out here.
+		if ($return)
+			return $files;
+		$context['page_title'] = $txt['package_ftp_necessary'];
+		$context['sub_template'] = 'ftp_required';
+		obExit();
+	}
+	else
+	{
+		if (!in_array($_POST['ftp_path'], array('', '/')))
+		{
+			$ftp_root = strtr($boarddir, array($_POST['ftp_path'] => ''));
+			if (substr($ftp_root, -1) == '/' && ($_POST['ftp_path'] == '' || substr($_POST['ftp_path'], 0, 1) == '/'))
+				$ftp_root = substr($ftp_root, 0, -1);
+		}
+		else
+			$ftp_root = $boarddir;
+		$_SESSION['pack_ftp'] = array(
+			'server' => $_POST['ftp_server'],
+			'port' => $_POST['ftp_port'],
+			'username' => $_POST['ftp_username'],
+			'password' => package_crypt($_POST['ftp_password']),
+			'path' => $_POST['ftp_path'],
+			'root' => $ftp_root,
+		);
+		if (!isset($modSettings['package_path']) || $modSettings['package_path'] != $_POST['ftp_path'])
+			updateSettings(array('package_path' => $_POST['ftp_path']));
+		$files = packageRequireFTP($destination_url, $files, $return);
+	}
+	return $files;
+}
+// Parses a package-info.xml file - method can be 'install', 'upgrade', or 'uninstall'.
+function parsePackageInfo(&$packageXML, $testing_only = true, $method = 'install', $previous_version = '')
+{
+	global $boarddir, $forum_version, $context, $temp_path, $language;
+	// Mayday!  That action doesn't exist!!
+	if (empty($packageXML) || !$packageXML->exists($method))
+		return array();
+	// We haven't found the package script yet...
+	$script = false;
+	$the_version = strtr($forum_version, array('SMF ' => ''));
+	// Emulation support...
+	if (!empty($_SESSION['version_emulate']))
+		$the_version = $_SESSION['version_emulate'];
+	// Get all the versions of this method and find the right one.
+	$these_methods = $packageXML->set($method);
+	foreach ($these_methods as $this_method)
+	{
+		// They specified certain versions this part is for.
+		if ($this_method->exists('@for'))
+		{
+			// Don't keep going if this won't work for this version of SMF.
+			if (!matchPackageVersion($the_version, $this_method->fetch('@for')))
+				continue;
+		}
+		// Upgrades may go from a certain old version of the mod.
+		if ($method == 'upgrade' && $this_method->exists('@from'))
+		{
+			// Well, this is for the wrong old version...
+			if (!matchPackageVersion($previous_version, $this_method->fetch('@from')))
+				continue;
+		}
+		// We've found it!
+		$script = $this_method;
+		break;
+	}
+	// Bad news, a matching script wasn't found!
+	if ($script === false)
+		return array();
+	// Find all the actions in this method - in theory, these should only be allowed actions. (* means all.)
+	$actions = $script->set('*');
+	$return = array();
+	$temp_auto = 0;
+	$temp_path = $boarddir . '/Packages/temp/' . (isset($context['base_path']) ? $context['base_path'] : '');
+	$context['readmes'] = array();
+	// This is the testing phase... nothing shall be done yet.
+	foreach ($actions as $action)
+	{
+		$actionType = $action->name();
+		if ($actionType == 'readme' || $actionType == 'code' || $actionType == 'database' || $actionType == 'modification' || $actionType == 'redirect')
+		{
+			// Allow for translated readme files.
+			if ($actionType == 'readme')
+			{
+				if ($action->exists('@lang'))
+				{
+					// Auto-select a readme language based on either request variable or current language.
+					if ((isset($_REQUEST['readme']) && $action->fetch('@lang') == $_REQUEST['readme']) || (!isset($_REQUEST['readme']) && $action->fetch('@lang') == $language))
+					{
+						// In case the user put the readme blocks in the wrong order.
+						if (isset($context['readmes']['selected']) && $context['readmes']['selected'] == 'default')
+							$context['readmes'][] = 'default';
+						$context['readmes']['selected'] = htmlspecialchars($action->fetch('@lang'));
+					}
+					else
+					{
+						// We don't want this readme now, but we'll allow the user to select to read it.
+						$context['readmes'][] = htmlspecialchars($action->fetch('@lang'));
+						continue;
+					}
+				}
+				// Fallback readme. Without lang parameter.
+				else
+				{
+					// Already selected a readme.
+					if (isset($context['readmes']['selected']))
+					{
+						$context['readmes'][] = 'default';
+						continue;
+					}
+					else
+						$context['readmes']['selected'] = 'default';
+				}
+			}
+			// !!! TODO: Make sure the file actually exists?  Might not work when testing?
+			if ($action->exists('@type') && $action->fetch('@type') == 'inline')
+			{
+				$filename = $temp_path . '$auto_' . $temp_auto++ . ($actionType == 'readme' || $actionType == 'redirect' ? '.txt' : ($actionType == 'code' || $actionType == 'database' ? '.php' : '.mod'));
+				package_put_contents($filename, $action->fetch('.'));
+				$filename = strtr($filename, array($temp_path => ''));
+			}
+			else
+				$filename = $action->fetch('.');
+			$return[] = array(
+				'type' => $actionType,
+				'filename' => $filename,
+				'description' => '',
+				'reverse' => $action->exists('@reverse') && $action->fetch('@reverse') == 'true',
+				'boardmod' => $action->exists('@format') && $action->fetch('@format') == 'boardmod',
+				'redirect_url' => $action->exists('@url') ? $action->fetch('@url') : '',
+				'redirect_timeout' => $action->exists('@timeout') ? (int) $action->fetch('@timeout') : '',
+				'parse_bbc' => $action->exists('@parsebbc') && $action->fetch('@parsebbc') == 'true',
+				'language' => ($actionType == 'readme' && $action->exists('@lang') && $action->fetch('@lang') == $language) ? $language : '',
+			);
+			continue;
+		}
+		elseif ($actionType == 'error')
+		{
+			$return[] = array(
+				'type' => 'error',
+			);
+		}
+		$this_action = &$return[];
+		$this_action = array(
+			'type' => $actionType,
+			'filename' => $action->fetch('@name'),
+			'description' => $action->fetch('.')
+		);
+		// If there is a destination, make sure it makes sense.
+		if (substr($actionType, 0, 6) != 'remove')
+		{
+			$this_action['unparsed_destination'] = $action->fetch('@destination');
+			$this_action['destination'] = parse_path($action->fetch('@destination')) . '/' . basename($this_action['filename']);
+		}
+		else
+		{
+			$this_action['unparsed_filename'] = $this_action['filename'];
+			$this_action['filename'] = parse_path($this_action['filename']);
+		}
+		// If we're moving or requiring (copying) a file.
+		if (substr($actionType, 0, 4) == 'move' || substr($actionType, 0, 7) == 'require')
+		{
+			if ($action->exists('@from'))
+				$this_action['source'] = parse_path($action->fetch('@from'));
+			else
+				$this_action['source'] = $temp_path . $this_action['filename'];
+		}
+		// Check if these things can be done. (chmod's etc.)
+		if ($actionType == 'create-dir')
+		{
+			if (!mktree($this_action['destination'], false))
+			{
+				$temp = $this_action['destination'];
+				while (!file_exists($temp) && strlen($temp) > 1)
+					$temp = dirname($temp);
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $temp
+				);
+			}
+		}
+		elseif ($actionType == 'create-file')
+		{
+			if (!mktree(dirname($this_action['destination']), false))
+			{
+				$temp = dirname($this_action['destination']);
+				while (!file_exists($temp) && strlen($temp) > 1)
+					$temp = dirname($temp);
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $temp
+				);
+			}
+			if (!is_writable($this_action['destination']) && (file_exists($this_action['destination']) || !is_writable(dirname($this_action['destination']))))
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $this_action['destination']
+				);
+		}
+		elseif ($actionType == 'require-dir')
+		{
+			if (!mktree($this_action['destination'], false))
+			{
+				$temp = $this_action['destination'];
+				while (!file_exists($temp) && strlen($temp) > 1)
+					$temp = dirname($temp);
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $temp
+				);
+			}
+		}
+		elseif ($actionType == 'require-file')
+		{
+			if ($action->exists('@theme'))
+				$this_action['theme_action'] = $action->fetch('@theme');
+			if (!mktree(dirname($this_action['destination']), false))
+			{
+				$temp = dirname($this_action['destination']);
+				while (!file_exists($temp) && strlen($temp) > 1)
+					$temp = dirname($temp);
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $temp
+				);
+			}
+			if (!is_writable($this_action['destination']) && (file_exists($this_action['destination']) || !is_writable(dirname($this_action['destination']))))
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $this_action['destination']
+				);
+		}
+		elseif ($actionType == 'move-dir' || $actionType == 'move-file')
+		{
+			if (!mktree(dirname($this_action['destination']), false))
+			{
+				$temp = dirname($this_action['destination']);
+				while (!file_exists($temp) && strlen($temp) > 1)
+					$temp = dirname($temp);
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $temp
+				);
+			}
+			if (!is_writable($this_action['destination']) && (file_exists($this_action['destination']) || !is_writable(dirname($this_action['destination']))))
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $this_action['destination']
+				);
+		}
+		elseif ($actionType == 'remove-dir')
+		{
+			if (!is_writable($this_action['filename']) && file_exists($this_action['destination']))
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $this_action['filename']
+				);
+		}
+		elseif ($actionType == 'remove-file')
+		{
+			if (!is_writable($this_action['filename']) && file_exists($this_action['filename']))
+				$return[] = array(
+					'type' => 'chmod',
+					'filename' => $this_action['filename']
+				);
+		}
+	}
+	// Only testing - just return a list of things to be done.
+	if ($testing_only)
+		return $return;
+	umask(0);
+	$failure = false;
+	$not_done = array(array('type' => '!'));
+	foreach ($return as $action)
+	{
+		if ($action['type'] == 'modification' || $action['type'] == 'code' || $action['type'] == 'database' || $action['type'] == 'redirect')
+			$not_done[] = $action;
+		if ($action['type'] == 'create-dir')
+		{
+			if (!mktree($action['destination'], 0755) || !is_writable($action['destination']))
+				$failure |= !mktree($action['destination'], 0777);
+		}
+		elseif ($action['type'] == 'create-file')
+		{
+			if (!mktree(dirname($action['destination']), 0755) || !is_writable(dirname($action['destination'])))
+				$failure |= !mktree(dirname($action['destination']), 0777);
+			// Create an empty file.
+			package_put_contents($action['destination'], package_get_contents($action['source']), $testing_only);
+			if (!file_exists($action['destination']))
+				$failure = true;
+		}
+		elseif ($action['type'] == 'require-dir')
+		{
+			copytree($action['source'], $action['destination']);
+			// Any other theme folders?
+			if (!empty($context['theme_copies']) && !empty($context['theme_copies'][$action['type']][$action['destination']]))
+				foreach ($context['theme_copies'][$action['type']][$action['destination']] as $theme_destination)
+					copytree($action['source'], $theme_destination);
+		}
+		elseif ($action['type'] == 'require-file')
+		{
+			if (!mktree(dirname($action['destination']), 0755) || !is_writable(dirname($action['destination'])))
+				$failure |= !mktree(dirname($action['destination']), 0777);
+			package_put_contents($action['destination'], package_get_contents($action['source']), $testing_only);
+			$failure |= !copy($action['source'], $action['destination']);
+			// Any other theme files?
+			if (!empty($context['theme_copies']) && !empty($context['theme_copies'][$action['type']][$action['destination']]))
+				foreach ($context['theme_copies'][$action['type']][$action['destination']] as $theme_destination)
+				{
+					if (!mktree(dirname($theme_destination), 0755) || !is_writable(dirname($theme_destination)))
+						$failure |= !mktree(dirname($theme_destination), 0777);
+					package_put_contents($theme_destination, package_get_contents($action['source']), $testing_only);
+					$failure |= !copy($action['source'], $theme_destination);
+				}
+		}
+		elseif ($action['type'] == 'move-file')
+		{
+			if (!mktree(dirname($action['destination']), 0755) || !is_writable(dirname($action['destination'])))
+				$failure |= !mktree(dirname($action['destination']), 0777);
+			$failure |= !rename($action['source'], $action['destination']);
+		}
+		elseif ($action['type'] == 'move-dir')
+		{
+			if (!mktree($action['destination'], 0755) || !is_writable($action['destination']))
+				$failure |= !mktree($action['destination'], 0777);
+			$failure |= !rename($action['source'], $action['destination']);
+		}
+		elseif ($action['type'] == 'remove-dir')
+		{
+			deltree($action['filename']);
+			// Any other theme folders?
+			if (!empty($context['theme_copies']) && !empty($context['theme_copies'][$action['type']][$action['filename']]))
+				foreach ($context['theme_copies'][$action['type']][$action['filename']] as $theme_destination)
+					deltree($theme_destination);
+		}
+		elseif ($action['type'] == 'remove-file')
+		{
+			// Make sure the file exists before deleting it.
+			if (file_exists($action['filename']))
+			{
+				package_chmod($action['filename']);
+				$failure |= !unlink($action['filename']);
+			}
+			// The file that was supposed to be deleted couldn't be found.
+			else
+				$failure = true;
+			// Any other theme folders?
+			if (!empty($context['theme_copies']) && !empty($context['theme_copies'][$action['type']][$action['filename']]))
+				foreach ($context['theme_copies'][$action['type']][$action['filename']] as $theme_destination)
+					if (file_exists($theme_destination))
+						$failure |= !unlink($theme_destination);
+					else
+						$failure = true;
+		}
+	}
+	return $not_done;
+}
+// This function tries to match $version into any of the ranges given in $versions
+function matchPackageVersion($version, $versions)
+{
+	// Make sure everything is lowercase and clean of spaces and unpleasant history.
+	$version = str_replace(array(' ', '2.0rc1-1'), array('', '2.0rc1.1'), strtolower($version));
+	$versions = explode(',', str_replace(array(' ', '2.0rc1-1'), array('', '2.0rc1.1'), strtolower($versions)));
+	// Perhaps we do accept anything?
+	if (in_array('all', $versions))
+		return true;
+	// Loop through each version.
+	foreach ($versions as $for)
+	{
+		// Wild card spotted?
+		if (strpos($for, '*') !== false)
+			$for = str_replace('*', '0dev0', $for) . '-' . str_replace('*', '999', $for);
+		// Do we have a range?
+		if (strpos($for, '-') !== false)
+		{
+			list ($lower, $upper) = explode('-', $for);
+			// Compare the version against lower and upper bounds.
+			if (compareVersions($version, $lower) > -1 && compareVersions($version, $upper) < 1)
+				return true;
+		}
+		// Otherwise check if they are equal...
+		elseif (compareVersions($version, $for) === 0)
+			return true;
+	}
+	return false;
+}
+// The geek version of versioning checks for dummies, which basically compares two versions.
+function compareVersions($version1, $version2)
+{
+	static $categories;
+	$versions = array();
+	foreach (array(1 => $version1, $version2) as $id => $version)
+	{
+		// Clean the version and extract the version parts.
+		$clean = str_replace(array(' ', '2.0rc1-1'), array('', '2.0rc1.1'), strtolower($version));
+		preg_match('~(\d+)(?:\.(\d+|))?(?:\.)?(\d+|)(?:(alpha|beta|rc)(\d+|)(?:\.)?(\d+|))?(?:(dev))?(\d+|)~', $clean, $parts);
+		// Build an array of parts.
+		$versions[$id] = array(
+			'major' => (int) $parts[1],
+			'minor' => !empty($parts[2]) ? (int) $parts[2] : 0,
+			'patch' => !empty($parts[3]) ? (int) $parts[3] : 0,
+			'type' => empty($parts[4]) ? 'stable' : $parts[4],
+			'type_major' => !empty($parts[6]) ? (int) $parts[5] : 0,
+			'type_minor' => !empty($parts[6]) ? (int) $parts[6] : 0,
+			'dev' => !empty($parts[7]),
+		);
+	}
+	// Are they the same, perhaps?
+	if ($versions[1] === $versions[2])
+		return 0;
+	// Get version numbering categories...
+	if (!isset($categories))
+		$categories = array_keys($versions[1]);
+	// Loop through each category.
+	foreach ($categories as $category)
+	{
+		// Is there something for us to calculate?
+		if ($versions[1][$category] !== $versions[2][$category])
+		{
+			// Dev builds are a problematic exception.
+			// (stable) dev < (stable) but (unstable) dev = (unstable)
+			if ($category == 'type')
+				return $versions[1][$category] > $versions[2][$category] ? ($versions[1]['dev'] ? -1 : 1) : ($versions[2]['dev'] ? 1 : -1);
+			elseif ($category == 'dev')
+				return $versions[1]['dev'] ? ($versions[2]['type'] == 'stable' ? -1 : 0) : ($versions[1]['type'] == 'stable' ? 1 : 0);
+			// Otherwise a simple comparison.
+			else
+				return $versions[1][$category] > $versions[2][$category] ? 1 : -1;
+		}
+	}
+	// They are the same!
+	return 0;
+}
+function parse_path($path)
+{
+	global $modSettings, $boarddir, $sourcedir, $settings, $temp_path;
+	$dirs = array(
+		'\\' => '/',
+		'$boarddir' => $boarddir,
+		'$sourcedir' => $sourcedir,
+		'$avatardir' => $modSettings['avatar_directory'],
+		'$avatars_dir' => $modSettings['avatar_directory'],
+		'$themedir' => $settings['default_theme_dir'],
+		'$imagesdir' => $settings['default_theme_dir'] . '/' . basename($settings['default_images_url']),
+		'$themes_dir' => $boarddir . '/Themes',
+		'$languagedir' => $settings['default_theme_dir'] . '/languages',
+		'$languages_dir' => $settings['default_theme_dir'] . '/languages',
+		'$smileysdir' => $modSettings['smileys_dir'],
+		'$smileys_dir' => $modSettings['smileys_dir'],
+	);
+	// do we parse in a package directory?
+	if (!empty($temp_path))
+		$dirs['$package'] = $temp_path;
+	if (strlen($path) == 0)
+		trigger_error('parse_path(): There should never be an empty filename', E_USER_ERROR);
+	return strtr($path, $dirs);
+}
+function deltree($dir, $delete_dir = true)
+{
+	global $package_ftp;
+	if (!file_exists($dir))
+		return;
+	$current_dir = @opendir($dir);
+	if ($current_dir == false)
+	{
+		if ($delete_dir && isset($package_ftp))
+		{
+			$ftp_file = strtr($dir, array($_SESSION['pack_ftp']['root'] => ''));
+			if (!is_writable($dir . '/' . $entryname))
+				$package_ftp->chmod($ftp_file, 0777);
+			$package_ftp->unlink($ftp_file);
+		}
+		return;
+	}
+	while ($entryname = readdir($current_dir))
+	{
+		if (in_array($entryname, array('.', '..')))
+			continue;
+		if (is_dir($dir . '/' . $entryname))
+			deltree($dir . '/' . $entryname);
+		else
+		{
+			// Here, 755 doesn't really matter since we're deleting it anyway.
+			if (isset($package_ftp))
+			{
+				$ftp_file = strtr($dir . '/' . $entryname, array($_SESSION['pack_ftp']['root'] => ''));
+				if (!is_writable($dir . '/' . $entryname))
+					$package_ftp->chmod($ftp_file, 0777);
+				$package_ftp->unlink($ftp_file);
+			}
+			else
+			{
+				if (!is_writable($dir . '/' . $entryname))
+					@chmod($dir . '/' . $entryname, 0777);
+				unlink($dir . '/' . $entryname);
+			}
+		}
+	}
+	closedir($current_dir);
+	if ($delete_dir)
+	{
+		if (isset($package_ftp))
+		{
+			$ftp_file = strtr($dir, array($_SESSION['pack_ftp']['root'] => ''));
+			if (!is_writable($dir . '/' . $entryname))
+				$package_ftp->chmod($ftp_file, 0777);
+			$package_ftp->unlink($ftp_file);
+		}
+		else
+		{
+			if (!is_writable($dir))
+				@chmod($dir, 0777);
+			@rmdir($dir);
+		}
+	}
+}
+function mktree($strPath, $mode)
+{
+	global $package_ftp;
+	if (is_dir($strPath))
+	{
+		if (!is_writable($strPath) && $mode !== false)
+		{
+			if (isset($package_ftp))
+				$package_ftp->chmod(strtr($strPath, array($_SESSION['pack_ftp']['root'] => '')), $mode);
+			else
+				@chmod($strPath, $mode);
+		}
+		$test = @opendir($strPath);
+		if ($test)
+		{
+			closedir($test);
+			return is_writable($strPath);
+		}
+		else
+			return false;
+	}
+	// Is this an invalid path and/or we can't make the directory?
+	if ($strPath == dirname($strPath) || !mktree(dirname($strPath), $mode))
+		return false;
+	if (!is_writable(dirname($strPath)) && $mode !== false)
+	{
+		if (isset($package_ftp))
+			$package_ftp->chmod(dirname(strtr($strPath, array($_SESSION['pack_ftp']['root'] => ''))), $mode);
+		else
+			@chmod(dirname($strPath), $mode);
+	}
+	if ($mode !== false && isset($package_ftp))
+		return $package_ftp->create_dir(strtr($strPath, array($_SESSION['pack_ftp']['root'] => '')));
+	elseif ($mode === false)
+	{
+		$test = @opendir(dirname($strPath));
+		if ($test)
+		{
+			closedir($test);
+			return true;
+		}
+		else
+			return false;
+	}
+	else
+	{
+		@mkdir($strPath, $mode);
+		$test = @opendir($strPath);
+		if ($test)
+		{
+			closedir($test);
+			return true;
+		}
+		else
+			return false;
+	}
+}
+function copytree($source, $destination)
+{
+	global $package_ftp;
+	if (!file_exists($destination) || !is_writable($destination))
+		mktree($destination, 0755);
+	if (!is_writable($destination))
+		mktree($destination, 0777);
+	$current_dir = opendir($source);
+	if ($current_dir == false)
+		return;
+	while ($entryname = readdir($current_dir))
+	{
+		if (in_array($entryname, array('.', '..')))
+			continue;
+		if (isset($package_ftp))
+			$ftp_file = strtr($destination . '/' . $entryname, array($_SESSION['pack_ftp']['root'] => ''));
+		if (is_file($source . '/' . $entryname))
+		{
+			if (isset($package_ftp) && !file_exists($destination . '/' . $entryname))
+				$package_ftp->create_file($ftp_file);
+			elseif (!file_exists($destination . '/' . $entryname))
+				@touch($destination . '/' . $entryname);
+		}
+		package_chmod($destination . '/' . $entryname);
+		if (is_dir($source . '/' . $entryname))
+			copytree($source . '/' . $entryname, $destination . '/' . $entryname);
+		elseif (file_exists($destination . '/' . $entryname))
+			package_put_contents($destination . '/' . $entryname, package_get_contents($source . '/' . $entryname));
+		else
+			copy($source . '/' . $entryname, $destination . '/' . $entryname);
+	}
+	closedir($current_dir);
+}
+function listtree($path, $sub_path = '')
+{
+	$data = array();
+	$dir = @dir($path . $sub_path);
+	if (!$dir)
+		return array();
+	while ($entry = $dir->read())
+	{
+		if ($entry == '.' || $entry == '..')
+			continue;
+		if (is_dir($path . $sub_path . '/' . $entry))
+			$data = array_merge($data, listtree($path, $sub_path . '/' . $entry));
+		else
+			$data[] = array(
+				'filename' => $sub_path == '' ? $entry : $sub_path . '/' . $entry,
+				'size' => filesize($path . $sub_path . '/' . $entry),
+				'skipped' => false,
+			);
+	}
+	$dir->close();
+	return $data;
+}
+// Parse an xml based modification file.
+function parseModification($file, $testing = true, $undo = false, $theme_paths = array())
+{
+	global $boarddir, $sourcedir, $settings, $txt, $modSettings, $package_ftp;
+	@set_time_limit(600);
+	loadClassFile('Class-Package.php');
+	$xml = new xmlArray(strtr($file, array("\r" => '')));
+	$actions = array();
+	$everything_found = true;
+	if (!$xml->exists('modification') || !$xml->exists('modification/file'))
+	{
+		$actions[] = array(
+			'type' => 'error',
+			'filename' => '-',
+			'debug' => $txt['package_modification_malformed']
+		);
+		return $actions;
+	}
+	// Get the XML data.
+	$files = $xml->set('modification/file');
+	// Use this for holding all the template changes in this mod.
+	$template_changes = array();
+	// This is needed to hold the long paths, as they can vary...
+	$long_changes = array();
+	// First, we need to build the list of all the files likely to get changed.
+	foreach ($files as $file)
+	{
+		// What is the filename we're currently on?
+		$filename = parse_path(trim($file->fetch('@name')));
+		// Now, we need to work out whether this is even a template file...
+		foreach ($theme_paths as $id => $theme)
+		{
+			// If this filename is relative, if so take a guess at what it should be.
+			$real_filename = $filename;
+			if (strpos($filename, 'Themes') === 0)
+				$real_filename = $boarddir . '/' . $filename;
+			if (strpos($real_filename, $theme['theme_dir']) === 0)
+			{
+				$template_changes[$id][] = substr($real_filename, strlen($theme['theme_dir']) + 1);
+				$long_changes[$id][] = $filename;
+			}
+		}
+	}
+	// Custom themes to add.
+	$custom_themes_add = array();
+	// If we have some template changes, we need to build a master link of what new ones are required for the custom themes.
+	if (!empty($template_changes[1]))
+	{
+		foreach ($theme_paths as $id => $theme)
+		{
+			// Default is getting done anyway, so no need for involvement here.
+			if ($id == 1)
+				continue;
+			// For every template, do we want it? Yea, no, maybe?
+			foreach ($template_changes[1] as $index => $template_file)
+			{
+				// What, it exists and we haven't already got it?! Lordy, get it in!
+				if (file_exists($theme['theme_dir'] . '/' . $template_file) && (!isset($template_changes[$id]) || !in_array($template_file, $template_changes[$id])))
+				{
+					// Now let's add it to the "todo" list.
+					$custom_themes_add[$long_changes[1][$index]][$id] = $theme['theme_dir'] . '/' . $template_file;
+				}
+			}
+		}
+	}
+	foreach ($files as $file)
+	{
+		// This is the actual file referred to in the XML document...
+		$files_to_change = array(
+			1 => parse_path(trim($file->fetch('@name'))),
+		);
+		// Sometimes though, we have some additional files for other themes, if we have add them to the mix.
+		if (isset($custom_themes_add[$files_to_change[1]]))
+			$files_to_change += $custom_themes_add[$files_to_change[1]];
+		// Now, loop through all the files we're changing, and, well, change them ;)
+		foreach ($files_to_change as $theme => $working_file)
+		{
+			if ($working_file[0] != '/' && $working_file[1] != ':')
+			{
+				trigger_error('parseModification(): The filename \'' . $working_file . '\' is not a full path!', E_USER_WARNING);
+				$working_file = $boarddir . '/' . $working_file;
+			}
+			// Doesn't exist - give an error or what?
+			if (!file_exists($working_file) && (!$file->exists('@error') || !in_array(trim($file->fetch('@error')), array('ignore', 'skip'))))
+			{
+				$actions[] = array(
+					'type' => 'missing',
+					'filename' => $working_file,
+					'debug' => $txt['package_modification_missing']
+				);
+				$everything_found = false;
+				continue;
+			}
+			// Skip the file if it doesn't exist.
+			elseif (!file_exists($working_file) && $file->exists('@error') && trim($file->fetch('@error')) == 'skip')
+			{
+				$actions[] = array(
+					'type' => 'skipping',
+					'filename' => $working_file,
+				);
+				continue;
+			}
+			// Okay, we're creating this file then...?
+			elseif (!file_exists($working_file))
+				$working_data = '';
+			// Phew, it exists!  Load 'er up!
+			else
+				$working_data = str_replace("\r", '', package_get_contents($working_file));
+			$actions[] = array(
+				'type' => 'opened',
+				'filename' => $working_file
+			);
+			$operations = $file->exists('operation') ? $file->set('operation') : array();
+			foreach ($operations as $operation)
+			{
+				// Convert operation to an array.
+				$actual_operation = array(
+					'searches' => array(),
+					'error' => $operation->exists('@error') && in_array(trim($operation->fetch('@error')), array('ignore', 'fatal', 'required')) ? trim($operation->fetch('@error')) : 'fatal',
+				);
+				// The 'add' parameter is used for all searches in this operation.
+				$add = $operation->exists('add') ? $operation->fetch('add') : '';
+				// Grab all search items of this operation (in most cases just 1).
+				$searches = $operation->set('search');
+				foreach ($searches as $i => $search)
+					$actual_operation['searches'][] = array(
+						'position' => $search->exists('@position') && in_array(trim($search->fetch('@position')), array('before', 'after', 'replace', 'end')) ? trim($search->fetch('@position')) : 'replace',
+						'is_reg_exp' => $search->exists('@regexp') && trim($search->fetch('@regexp')) === 'true',
+						'loose_whitespace' => $search->exists('@whitespace') && trim($search->fetch('@whitespace')) === 'loose',
+						'search' => $search->fetch('.'),
+						'add' => $add,
+						'preg_search' => '',
+						'preg_replace' => '',
+					);
+				// At least one search should be defined.
+				if (empty($actual_operation['searches']))
+				{
+					$actions[] = array(
+						'type' => 'failure',
+						'filename' => $working_file,
+						'search' => $search['search'],
+						'is_custom' => $theme > 1 ? $theme : 0,
+					);
+					// Skip to the next operation.
+					continue;
+				}
+				// Reverse the operations in case of undoing stuff.
+				if ($undo)
+				{
+					foreach ($actual_operation['searches'] as $i => $search)
+					{
+						// Reverse modification of regular expressions are not allowed.
+						if ($search['is_reg_exp'])
+						{
+							if ($actual_operation['error'] === 'fatal')
+								$actions[] = array(
+									'type' => 'failure',
+									'filename' => $working_file,
+									'search' => $search['search'],
+									'is_custom' => $theme > 1 ? $theme : 0,
+								);
+							// Continue to the next operation.
+							continue 2;
+						}
+						// The replacement is now the search subject...
+						if ($search['position'] === 'replace' || $search['position'] === 'end')
+							$actual_operation['searches'][$i]['search'] = $search['add'];
+						else
+						{
+							// Reversing a before/after modification becomes a replacement.
+							$actual_operation['searches'][$i]['position'] = 'replace';
+							if ($search['position'] === 'before')
+								$actual_operation['searches'][$i]['search'] .= $search['add'];
+							elseif ($search['position'] === 'after')
+								$actual_operation['searches'][$i]['search'] = $search['add'] . $search['search'];
+						}
+						// ...and the search subject is now the replacement.
+						$actual_operation['searches'][$i]['add'] = $search['search'];
+					}
+				}
+				// Sort the search list so the replaces come before the add before/after's.
+				if (count($actual_operation['searches']) !== 1)
+				{
+					$replacements = array();
+					foreach ($actual_operation['searches'] as $i => $search)
+					{
+						if ($search['position'] === 'replace')
+						{
+							$replacements[] = $search;
+							unset($actual_operation['searches'][$i]);
+						}
+					}
+					$actual_operation['searches'] = array_merge($replacements, $actual_operation['searches']);
+				}
+				// Create regular expression replacements from each search.
+				foreach ($actual_operation['searches'] as $i => $search)
+				{
+					// Not much needed if the search subject is already a regexp.
+					if ($search['is_reg_exp'])
+						$actual_operation['searches'][$i]['preg_search'] = $search['search'];
+					else
+					{
+						// Make the search subject fit into a regular expression.
+						$actual_operation['searches'][$i]['preg_search'] = preg_quote($search['search'], '~');
+						// Using 'loose', a random amount of tabs and spaces may be used.
+						if ($search['loose_whitespace'])
+							$actual_operation['searches'][$i]['preg_search'] = preg_replace('~[ \t]+~', '[ \t]+', $actual_operation['searches'][$i]['preg_search']);
+					}
+					// Shuzzup.  This is done so we can safely use a regular expression. ($0 is bad!!)
+					$actual_operation['searches'][$i]['preg_replace'] = strtr($search['add'], array('$' => '[$PACK' . 'AGE1$]', '\\' => '[$PACK' . 'AGE2$]'));
+					// Before, so the replacement comes after the search subject :P
+					if ($search['position'] === 'before')
+					{
+						$actual_operation['searches'][$i]['preg_search'] = '(' . $actual_operation['searches'][$i]['preg_search'] . ')';
+						$actual_operation['searches'][$i]['preg_replace'] = '$1' . $actual_operation['searches'][$i]['preg_replace'];
+					}
+					// After, after what?
+					elseif ($search['position'] === 'after')
+					{
+						$actual_operation['searches'][$i]['preg_search'] = '(' . $actual_operation['searches'][$i]['preg_search'] . ')';
+						$actual_operation['searches'][$i]['preg_replace'] .= '$1';
+					}
+					// Position the replacement at the end of the file (or just before the closing PHP tags).
+					elseif ($search['position'] === 'end')
+					{
+						if ($undo)
+						{
+							$actual_operation['searches'][$i]['preg_replace'] = '';
+						}
+						else
+						{
+							$actual_operation['searches'][$i]['preg_search'] = '(\\n\\?\\>)?$';
+							$actual_operation['searches'][$i]['preg_replace'] .= '$1';
+						}
+					}
+					// Testing 1, 2, 3...
+					$failed = preg_match('~' . $actual_operation['searches'][$i]['preg_search'] . '~s', $working_data) === 0;
+					// Nope, search pattern not found.
+					if ($failed && $actual_operation['error'] === 'fatal')
+					{
+						$actions[] = array(
+							'type' => 'failure',
+							'filename' => $working_file,
+							'search' => $actual_operation['searches'][$i]['preg_search'],
+							'search_original' => $actual_operation['searches'][$i]['search'],
+							'replace_original' => $actual_operation['searches'][$i]['add'],
+							'position' => $search['position'],
+							'is_custom' => $theme > 1 ? $theme : 0,
+							'failed' => $failed,
+						);
+						$everything_found = false;
+						continue;
+					}
+					// Found, but in this case, that means failure!
+					elseif (!$failed && $actual_operation['error'] === 'required')
+					{
+						$actions[] = array(
+							'type' => 'failure',
+							'filename' => $working_file,
+							'search' => $actual_operation['searches'][$i]['preg_search'],
+							'search_original' => $actual_operation['searches'][$i]['search'],
+							'replace_original' => $actual_operation['searches'][$i]['add'],
+							'position' => $search['position'],
+							'is_custom' => $theme > 1 ? $theme : 0,
+							'failed' => $failed,
+						);
+						$everything_found = false;
+						continue;
+					}
+					// Replace it into nothing? That's not an option...unless it's an undoing end.
+					if ($search['add'] === '' && ($search['position'] !== 'end' || !$undo))
+						continue;
+					// Finally, we're doing some replacements.
+					$working_data = preg_replace('~' . $actual_operation['searches'][$i]['preg_search'] . '~s', $actual_operation['searches'][$i]['preg_replace'], $working_data, 1);
+					$actions[] = array(
+						'type' => 'replace',
+						'filename' => $working_file,
+						'search' => $actual_operation['searches'][$i]['preg_search'],
+						'replace' =>  $actual_operation['searches'][$i]['preg_replace'],
+						'search_original' => $actual_operation['searches'][$i]['search'],
+						'replace_original' => $actual_operation['searches'][$i]['add'],
+						'position' => $search['position'],
+						'failed' => $failed,
+						'ignore_failure' => $failed && $actual_operation['error'] === 'ignore',
+						'is_custom' => $theme > 1 ? $theme : 0,
+					);
+				}
+			}
+			// Fix any little helper symbols ;).
+			$working_data = strtr($working_data, array('[$PACK' . 'AGE1$]' => '$', '[$PACK' . 'AGE2$]' => '\\'));
+			package_chmod($working_file);
+			if ((file_exists($working_file) && !is_writable($working_file)) || (!file_exists($working_file) && !is_writable(dirname($working_file))))
+				$actions[] = array(
+					'type' => 'chmod',
+					'filename' => $working_file
+				);
+			if (basename($working_file) == 'Settings_bak.php')
+				continue;
+			if (!$testing && !empty($modSettings['package_make_backups']) && file_exists($working_file))
+			{
+				// No, no, not Settings.php!
+				if (basename($working_file) == 'Settings.php')
+					@copy($working_file, dirname($working_file) . '/Settings_bak.php');
+				else
+					@copy($working_file, $working_file . '~');
+			}
+			// Always call this, even if in testing, because it won't really be written in testing mode.
+			package_put_contents($working_file, $working_data, $testing);
+			$actions[] = array(
+				'type' => 'saved',
+				'filename' => $working_file,
+				'is_custom' => $theme > 1 ? $theme : 0,
+			);
+		}
+	}
+	$actions[] = array(
+		'type' => 'result',
+		'status' => $everything_found
+	);
+	return $actions;
+}
+// Parses a BoardMod format mod file...
+function parseBoardMod($file, $testing = true, $undo = false, $theme_paths = array())
+{
+	global $boarddir, $sourcedir, $settings, $txt, $modSettings;
+	@set_time_limit(600);
+	$file = strtr($file, array("\r" => ''));
+	$working_file = null;
+	$working_search = null;
+	$working_data = '';
+	$replace_with = null;
+	$actions = array();
+	$everything_found = true;
+	// This holds all the template changes in the standard mod file.
+	$template_changes = array();
+	// This is just the temporary file.
+	$temp_file = $file;
+	// This holds the actual changes on a step counter basis.
+	$temp_changes = array();
+	$counter = 0;
+	$step_counter = 0;
+	// Before we do *anything*, let's build a list of what we're editing, as it's going to be used for other theme edits.
+	while (preg_match('~<(edit file|file|search|search for|add|add after|replace|add before|add above|above|before)>\n(.*?)\n</\\1>~is', $temp_file, $code_match) != 0)
+	{
+		$counter++;
+		// Get rid of the old stuff.
+		$temp_file = substr_replace($temp_file, '', strpos($temp_file, $code_match[0]), strlen($code_match[0]));
+		// No interest to us?
+		if ($code_match[1] != 'edit file' && $code_match[1] != 'file')
+		{
+			// It's a step, let's add that to the current steps.
+			if (isset($temp_changes[$step_counter]))
+				$temp_changes[$step_counter]['changes'][] = $code_match[0];
+			continue;
+		}
+		// We've found a new edit - let's make ourself heard, kind of.
+		$step_counter = $counter;
+		$temp_changes[$step_counter] = array(
+			'title' => $code_match[0],
+			'changes' => array(),
+		);
+		$filename = parse_path($code_match[2]);
+		// Now, is this a template file, and if so, which?
+		foreach ($theme_paths as $id => $theme)
+		{
+			// If this filename is relative, if so take a guess at what it should be.
+			if (strpos($filename, 'Themes') === 0)
+				$filename = $boarddir . '/' . $filename;
+			if (strpos($filename, $theme['theme_dir']) === 0)
+				$template_changes[$id][$counter] = substr($filename, strlen($theme['theme_dir']) + 1);
+		}
+	}
+	// Anything above $counter must be for custom themes.
+	$custom_template_begin = $counter;
+	// Reference for what theme ID this action belongs to.
+	$theme_id_ref = array();
+	// Now we know what templates we need to touch, cycle through each theme and work out what we need to edit.
+	if (!empty($template_changes[1]))
+	{
+		foreach ($theme_paths as $id => $theme)
+		{
+			// Don't do default, it means nothing to me.
+			if ($id == 1)
+				continue;
+			// Now, for each file do we need to edit it?
+			foreach ($template_changes[1] as $pos => $template_file)
+			{
+				// It does? Add it to the list darlin'.
+				if (file_exists($theme['theme_dir'] . '/' . $template_file) && (!isset($template_changes[$id][$pos]) || !in_array($template_file, $template_changes[$id][$pos])))
+				{
+					// Actually add it to the mod file too, so we can see that it will work ;)
+					if (!empty($temp_changes[$pos]['changes']))
+					{
+						$file .= "\n\n" . '<edit file>' . "\n" . $theme['theme_dir'] . '/' . $template_file . "\n" . '</edit file>' . "\n\n" . implode("\n\n", $temp_changes[$pos]['changes']);
+						$theme_id_ref[$counter] = $id;
+						$counter += 1 + count($temp_changes[$pos]['changes']);
+					}
+				}
+			}
+		}
+	}
+	$counter = 0;
+	$is_custom = 0;
+	while (preg_match('~<(edit file|file|search|search for|add|add after|replace|add before|add above|above|before)>\n(.*?)\n</\\1>~is', $file, $code_match) != 0)
+	{
+		// This is for working out what we should be editing.
+		$counter++;
+		// Edit a specific file.
+		if ($code_match[1] == 'file' || $code_match[1] == 'edit file')
+		{
+			// Backup the old file.
+			if ($working_file !== null)
+			{
+				package_chmod($working_file);
+				// Don't even dare.
+				if (basename($working_file) == 'Settings_bak.php')
+					continue;
+				if (!is_writable($working_file))
+					$actions[] = array(
+						'type' => 'chmod',
+						'filename' => $working_file
+					);
+				if (!$testing && !empty($modSettings['package_make_backups']) && file_exists($working_file))
+				{
+					if (basename($working_file) == 'Settings.php')
+						@copy($working_file, dirname($working_file) . '/Settings_bak.php');
+					else
+						@copy($working_file, $working_file . '~');
+				}
+				package_put_contents($working_file, $working_data, $testing);
+			}
+			if ($working_file !== null)
+				$actions[] = array(
+					'type' => 'saved',
+					'filename' => $working_file,
+					'is_custom' => $is_custom,
+				);
+			// Is this "now working on" file a theme specific one?
+			$is_custom = isset($theme_id_ref[$counter - 1]) ? $theme_id_ref[$counter - 1] : 0;
+			// Make sure the file exists!
+			$working_file = parse_path($code_match[2]);
+			if ($working_file[0] != '/' && $working_file[1] != ':')
+			{
+				trigger_error('parseBoardMod(): The filename \'' . $working_file . '\' is not a full path!', E_USER_WARNING);
+				$working_file = $boarddir . '/' . $working_file;
+			}
+			if (!file_exists($working_file))
+			{
+				$places_to_check = array($boarddir, $sourcedir, $settings['default_theme_dir'], $settings['default_theme_dir'] . '/languages');
+				foreach ($places_to_check as $place)
+					if (file_exists($place . '/' . $working_file))
+					{
+						$working_file = $place . '/' . $working_file;
+						break;
+					}
+			}
+			if (file_exists($working_file))
+			{
+				// Load the new file.
+				$working_data = str_replace("\r", '', package_get_contents($working_file));
+				$actions[] = array(
+					'type' => 'opened',
+					'filename' => $working_file
+				);
+			}
+			else
+			{
+				$actions[] = array(
+					'type' => 'missing',
+					'filename' => $working_file
+				);
+				$working_file = null;
+				$everything_found = false;
+			}
+			// Can't be searching for something...
+			$working_search = null;
+		}
+		// Search for a specific string.
+		elseif (($code_match[1] == 'search' || $code_match[1] == 'search for') && $working_file !== null)
+		{
+			if ($working_search !== null)
+			{
+				$actions[] = array(
+					'type' => 'error',
+					'filename' => $working_file
+				);
+				$everything_found = false;
+			}
+			$working_search = $code_match[2];
+		}
+		// Must've already loaded a search string.
+		elseif ($working_search !== null)
+		{
+			// This is the base string....
+			$replace_with = $code_match[2];
+			// Add this afterward...
+			if ($code_match[1] == 'add' || $code_match[1] == 'add after')
+				$replace_with = $working_search . "\n" . $replace_with;
+			// Add this beforehand.
+			elseif ($code_match[1] == 'before' || $code_match[1] == 'add before' || $code_match[1] == 'above' || $code_match[1] == 'add above')
+				$replace_with .= "\n" . $working_search;
+			// Otherwise.. replace with $replace_with ;).
+		}
+		// If we have a search string, replace string, and open file..
+		if ($working_search !== null && $replace_with !== null && $working_file !== null)
+		{
+			// Make sure it's somewhere in the string.
+			if ($undo)
+			{
+				$temp = $replace_with;
+				$replace_with = $working_search;
+				$working_search = $temp;
+			}
+			if (strpos($working_data, $working_search) !== false)
+			{
+				$working_data = str_replace($working_search, $replace_with, $working_data);
+				$actions[] = array(
+					'type' => 'replace',
+					'filename' => $working_file,
+					'search' => $working_search,
+					'replace' => $replace_with,
+					'search_original' => $working_search,
+					'replace_original' => $replace_with,
+					'position' => $code_match[1] == 'replace' ? 'replace' : ($code_match[1] == 'add' || $code_match[1] == 'add after' ? 'before' : 'after'),
+					'is_custom' => $is_custom,
+					'failed' => false,
+				);
+			}
+			// It wasn't found!
+			else
+			{
+				$actions[] = array(
+					'type' => 'failure',
+					'filename' => $working_file,
+					'search' => $working_search,
+					'is_custom' => $is_custom,
+					'search_original' => $working_search,
+					'replace_original' => $replace_with,
+					'position' => $code_match[1] == 'replace' ? 'replace' : ($code_match[1] == 'add' || $code_match[1] == 'add after' ? 'before' : 'after'),
+					'is_custom' => $is_custom,
+					'failed' => true,
+				);
+				$everything_found = false;
+			}
+			// These don't hold any meaning now.
+			$working_search = null;
+			$replace_with = null;
+		}
+		// Get rid of the old tag.
+		$file = substr_replace($file, '', strpos($file, $code_match[0]), strlen($code_match[0]));
+	}
+	// Backup the old file.
+	if ($working_file !== null)
+	{
+		package_chmod($working_file);
+		if (!is_writable($working_file))
+			$actions[] = array(
+				'type' => 'chmod',
+				'filename' => $working_file
+			);
+		if (!$testing && !empty($modSettings['package_make_backups']) && file_exists($working_file))
+		{
+			if (basename($working_file) == 'Settings.php')
+				@copy($working_file, dirname($working_file) . '/Settings_bak.php');
+			else
+				@copy($working_file, $working_file . '~');
+		}
+		package_put_contents($working_file, $working_data, $testing);
+	}
+	if ($working_file !== null)
+		$actions[] = array(
+			'type' => 'saved',
+			'filename' => $working_file,
+			'is_custom' => $is_custom,
+		);
+	$actions[] = array(
+		'type' => 'result',
+		'status' => $everything_found
+	);
+	return $actions;
+}
+function package_get_contents($filename)
+{
+	global $package_cache, $modSettings;
+	if (!isset($package_cache))
+	{
+		// Windows doesn't seem to care about the memory_limit.
+		if (!empty($modSettings['package_disable_cache']) || ini_set('memory_limit', '128M') !== false || strpos(strtolower(PHP_OS), 'win') !== false)
+			$package_cache = array();
+		else
+			$package_cache = false;
+	}
+	if (strpos($filename, 'Packages/') !== false || $package_cache === false || !isset($package_cache[$filename]))
+		return file_get_contents($filename);
+	else
+		return $package_cache[$filename];
+}
+function package_put_contents($filename, $data, $testing = false)
+{
+	global $package_ftp, $package_cache, $modSettings;
+	static $text_filetypes = array('php', 'txt', '.js', 'css', 'vbs', 'tml', 'htm');
+	if (!isset($package_cache))
+	{
+		// Try to increase the memory limit - we don't want to run out of ram!
+		if (!empty($modSettings['package_disable_cache']) || ini_set('memory_limit', '128M') !== false || strpos(strtolower(PHP_OS), 'win') !== false)
+			$package_cache = array();
+		else
+			$package_cache = false;
+	}
+	if (isset($package_ftp))
+		$ftp_file = strtr($filename, array($_SESSION['pack_ftp']['root'] => ''));
+	if (!file_exists($filename) && isset($package_ftp))
+		$package_ftp->create_file($ftp_file);
+	elseif (!file_exists($filename))
+		@touch($filename);
+	package_chmod($filename);
+	if (!$testing && (strpos($filename, 'Packages/') !== false || $package_cache === false))
+	{
+		$fp = @fopen($filename, in_array(substr($filename, -3), $text_filetypes) ? 'w' : 'wb');
+		// We should show an error message or attempt a rollback, no?
+		if (!$fp)
+			return false;
+		fwrite($fp, $data);
+		fclose($fp);
+	}
+	elseif (strpos($filename, 'Packages/') !== false || $package_cache === false)
+		return strlen($data);
+	else
+	{
+		$package_cache[$filename] = $data;
+		// Permission denied, eh?
+		$fp = @fopen($filename, 'r+');
+		if (!$fp)
+			return false;
+		fclose($fp);
+	}
+	return strlen($data);
+}
+function package_flush_cache($trash = false)
+{
+	global $package_ftp, $package_cache;
+	static $text_filetypes = array('php', 'txt', '.js', 'css', 'vbs', 'tml', 'htm');
+	if (empty($package_cache))
+		return;
+	// First, let's check permissions!
+	foreach ($package_cache as $filename => $data)
+	{
+		if (isset($package_ftp))
+			$ftp_file = strtr($filename, array($_SESSION['pack_ftp']['root'] => ''));
+		if (!file_exists($filename) && isset($package_ftp))
+			$package_ftp->create_file($ftp_file);
+		elseif (!file_exists($filename))
+			@touch($filename);
+		package_chmod($filename);
+		$fp = fopen($filename, 'r+');
+		if (!$fp && !$trash)
+		{
+			// We should have package_chmod()'d them before, no?!
+			trigger_error('package_flush_cache(): some files are still not writable', E_USER_WARNING);
+			return;
+		}
+		fclose($fp);
+	}
+	if ($trash)
+	{
+		$package_cache = array();
+		return;
+	}
+	foreach ($package_cache as $filename => $data)
+	{
+		$fp = fopen($filename, in_array(substr($filename, -3), $text_filetypes) ? 'w' : 'wb');
+		fwrite($fp, $data);
+		fclose($fp);
+	}
+	$package_cache = array();
+}
+// Try to make a file writable. Return true if it worked, false if it didn't.
+function package_chmod($filename, $perm_state = 'writable', $track_change = false)
+{
+	global $package_ftp;
+	if (file_exists($filename) && is_writable($filename) && $perm_state == 'writable')
+		return true;
+	// Start off checking without FTP.
+	if (!isset($package_ftp) || $package_ftp === false)
+	{
+		for ($i = 0; $i < 2; $i++)
+		{
+			$chmod_file = $filename;
+			// Start off with a less agressive test.
+			if ($i == 0)
+			{
+				// If this file doesn't exist, then we actually want to look at whatever parent directory does.
+				$subTraverseLimit = 2;
+				while (!file_exists($chmod_file) && $subTraverseLimit)
+				{
+					$chmod_file = dirname($chmod_file);
+					$subTraverseLimit--;
+				}
+				// Keep track of the writable status here.
+				$file_permissions = @fileperms($chmod_file);
+			}
+			else
+			{
+				// This looks odd, but it's an attempt to work around PHP suExec.
+				if (!file_exists($chmod_file) && $perm_state == 'writable')
+				{
+					$file_permissions = @fileperms(dirname($chmod_file));
+					mktree(dirname($chmod_file), 0755);
+					@touch($chmod_file);
+					@chmod($chmod_file, 0755);
+				}
+				else
+					$file_permissions = @fileperms($chmod_file);
+			}
+			// This looks odd, but it's another attempt to work around PHP suExec.
+			if ($perm_state != 'writable')
+				@chmod($chmod_file, $perm_state == 'execute' ? 0755 : 0644);
+			else
+			{
+				if (!@is_writable($chmod_file))
+					@chmod($chmod_file, 0755);
+				if (!@is_writable($chmod_file))
+					@chmod($chmod_file, 0777);
+				if (!@is_writable(dirname($chmod_file)))
+					@chmod($chmod_file, 0755);
+				if (!@is_writable(dirname($chmod_file)))
+					@chmod($chmod_file, 0777);
+			}
+			// The ultimate writable test.
+			if ($perm_state == 'writable')
+			{
+				$fp = is_dir($chmod_file) ? @opendir($chmod_file) : @fopen($chmod_file, 'rb');
+				if (@is_writable($chmod_file) && $fp)
+				{
+					if (!is_dir($chmod_file))
+						fclose($fp);
+					else
+						closedir($fp);
+					// It worked!
+					if ($track_change)
+						$_SESSION['pack_ftp']['original_perms'][$chmod_file] = $file_permissions;
+					return true;
+				}
+			}
+			elseif ($perm_state != 'writable' && isset($_SESSION['pack_ftp']['original_perms'][$chmod_file]))
+				unset($_SESSION['pack_ftp']['original_perms'][$chmod_file]);
+		}
+		// If we're here we're a failure.
+		return false;
+	}
+	// Otherwise we do have FTP?
+	elseif ($package_ftp !== false && !empty($_SESSION['pack_ftp']))
+	{
+		$ftp_file = strtr($filename, array($_SESSION['pack_ftp']['root'] => ''));
+		// This looks odd, but it's an attempt to work around PHP suExec.
+		if (!file_exists($filename) && $perm_state == 'writable')
+		{
+			$file_permissions = @fileperms(dirname($filename));
+			mktree(dirname($filename), 0755);
+			$package_ftp->create_file($ftp_file);
+			$package_ftp->chmod($ftp_file, 0755);
+		}
+		else
+			$file_permissions = @fileperms($filename);
+		if ($perm_state != 'writable')
+		{
+			$package_ftp->chmod($ftp_file, $perm_state == 'execute' ? 0755 : 0644);
+		}
+		else
+		{
+			if (!@is_writable($filename))
+				$package_ftp->chmod($ftp_file, 0777);
+			if (!@is_writable(dirname($filename)))
+				$package_ftp->chmod(dirname($ftp_file), 0777);
+		}
+		if (@is_writable($filename))
+		{
+			if ($track_change)
+				$_SESSION['pack_ftp']['original_perms'][$filename] = $file_permissions;
+			return true;
+		}
+		elseif ($perm_state != 'writable' && isset($_SESSION['pack_ftp']['original_perms'][$filename]))
+			unset($_SESSION['pack_ftp']['original_perms'][$filename]);
+	}
+	// Oh dear, we failed if we get here.
+	return false;
+}
+function package_crypt($pass)
+{
+	$n = strlen($pass);
+	$salt = session_id();
+	while (strlen($salt) < $n)
+		$salt .= session_id();
+	for ($i = 0; $i < $n; $i++)
+		$pass{$i} = chr(ord($pass{$i}) ^ (ord($salt{$i}) - 32));
+	return $pass;
+}
+function package_create_backup($id = 'backup')
+{
+	global $sourcedir, $boarddir, $smcFunc;
+	$files = array();
+	$base_files = array('index.php', 'SSI.php', 'agreement.txt', 'ssi_examples.php', 'ssi_examples.shtml');
+	foreach ($base_files as $file)
+	{
+		if (file_exists($boarddir . '/' . $file))
+			$files[realpath($boarddir . '/' . $file)] = array(
+				empty($_REQUEST['use_full_paths']) ? $file : $boarddir . '/' . $file,
+				stat($boarddir . '/' . $file)
+			);
+	}
+	$dirs = array(
+		$sourcedir => empty($_REQUEST['use_full_paths']) ? 'Sources/' : strtr($sourcedir . '/', '\\', '/')
+	);
+	$request = $smcFunc['db_query']('', '
+		SELECT value
+		FROM {db_prefix}themes
+		WHERE id_member = {int:no_member}
+			AND variable = {string:theme_dir}',
+		array(
+			'no_member' => 0,
+			'theme_dir' => 'theme_dir',
+		)
+	);
+	while ($row = $smcFunc['db_fetch_assoc']($request))
+		$dirs[$row['value']] = empty($_REQUEST['use_full_paths']) ? 'Themes/' . basename($row['value']) . '/' : strtr($row['value'] . '/', '\\', '/');
+	$smcFunc['db_free_result']($request);
+	while (!empty($dirs))
+	{
+		list ($dir, $dest) = each($dirs);
+		unset($dirs[$dir]);
+		$listing = @dir($dir);
+		if (!$listing)
+			continue;
+		while ($entry = $listing->read())
+		{
+			if (preg_match('~^(\.{1,2}|CVS|backup.*|help|images|.*\~)$~', $entry) != 0)
+				continue;
+			$filepath = realpath($dir . '/' . $entry);
+			if (isset($files[$filepath]))
+				continue;
+			$stat = stat($dir . '/' . $entry);
+			if ($stat['mode'] & 040000)
+			{
+				$files[$filepath] = array($dest . $entry . '/', $stat);
+				$dirs[$dir . '/' . $entry] = $dest . $entry . '/';
+			}
+			else
+				$files[$filepath] = array($dest . $entry, $stat);
+		}
+		$listing->close();
+	}
+	if (!file_exists($boarddir . '/Packages/backups'))
+		mktree($boarddir . '/Packages/backups', 0777);
+	if (!is_writable($boarddir . '/Packages/backups'))
+		package_chmod($boarddir . '/Packages/backups');
+	$output_file = $boarddir . '/Packages/backups/' . strftime('%Y-%m-%d_') . preg_replace('~[$\\\\/:<>|?*"\']~', '', $id);
+	$output_ext = '.tar' . (function_exists('gzopen') ? '.gz' : '');
+	if (file_exists($output_file . $output_ext))
+	{
+		$i = 2;
+		while (file_exists($output_file . '_' . $i . $output_ext))
+			$i++;
+		$output_file = $output_file . '_' . $i . $output_ext;
+	}
+	else
+		$output_file .= $output_ext;
+	@set_time_limit(300);
+	if (function_exists('apache_reset_timeout'))
+		@apache_reset_timeout();
+	if (function_exists('gzopen'))
+	{
+		$fwrite = 'gzwrite';
+		$fclose = 'gzclose';
+		$output = gzopen($output_file, 'wb');
+	}
+	else
+	{
+		$fwrite = 'fwrite';
+		$fclose = 'fclose';
+		$output = fopen($output_file, 'wb');
+	}
+	foreach ($files as $real_file => $file)
+	{
+		if (!file_exists($real_file))
+			continue;
+		$stat = $file[1];
+		if (substr($file[0], -1) == '/')
+			$stat['size'] = 0;
+		$current = pack('a100a8a8a8a12a12a8a1a100a6a2a32a32a8a8a155a12', $file[0], decoct($stat['mode']), sprintf('%06d', decoct($stat['uid'])), sprintf('%06d', decoct($stat['gid'])), decoct($stat['size']), decoct($stat['mtime']), '', 0, '', '', '', '', '', '', '', '', '');
+		$checksum = 256;
+		for ($i = 0; $i < 512; $i++)
+			$checksum += ord($current{$i});
+		$fwrite($output, substr($current, 0, 148) . pack('a8', decoct($checksum)) . substr($current, 156, 511));
+		if ($stat['size'] == 0)
+			continue;
+		$fp = fopen($real_file, 'rb');
+		while (!feof($fp))
+			$fwrite($output, fread($fp, 16384));
+		fclose($fp);
+		$fwrite($output, pack('a' . (512 - $stat['size'] % 512), ''));
+	}
+	$fwrite($output, pack('a1024', ''));
+	$fclose($output);
+}
+// Get the contents of a URL, irrespective of allow_url_fopen.
+function fetch_web_data($url, $post_data = '', $keep_alive = false, $redirection_level = 0)
+{
+	global $webmaster_email;
+	static $keep_alive_dom = null, $keep_alive_fp = null;
+	preg_match('~^(http|ftp)(s)?://([^/:]+)(:(\d+))?(.+)$~', $url, $match);
+	// An FTP url. We should try connecting and RETRieving it...
+	if (empty($match[1]))
+		return false;
+	elseif ($match[1] == 'ftp')
+	{
+		// Include the file containing the ftp_connection class.
+		loadClassFile('Class-Package.php');
+		// Establish a connection and attempt to enable passive mode.
+		$ftp = new ftp_connection(($match[2] ? 'ssl://' : '') . $match[3], empty($match[5]) ? 21 : $match[5], 'anonymous', $webmaster_email);
+		if ($ftp->error !== false || !$ftp->passive())
+			return false;
+		// I want that one *points*!
+		fwrite($ftp->connection, 'RETR ' . $match[6] . "\r\n");
+		// Since passive mode worked (or we would have returned already!) open the connection.
+		$fp = @fsockopen($ftp->pasv['ip'], $ftp->pasv['port'], $err, $err, 5);
+		if (!$fp)
+			return false;
+		// The server should now say something in acknowledgement.
+		$ftp->check_response(150);
+		$data = '';
+		while (!feof($fp))
+			$data .= fread($fp, 4096);
+		fclose($fp);
+		// All done, right?  Good.
+		$ftp->check_response(226);
+		$ftp->close();
+	}
+	// This is more likely; a standard HTTP URL.
+	elseif (isset($match[1]) && $match[1] == 'http')
+	{
+		if ($keep_alive && $match[3] == $keep_alive_dom)
+			$fp = $keep_alive_fp;
+		if (empty($fp))
+		{
+			// Open the socket on the port we want...
+			$fp = @fsockopen(($match[2] ? 'ssl://' : '') . $match[3], empty($match[5]) ? ($match[2] ? 443 : 80) : $match[5], $err, $err, 5);
+			if (!$fp)
+				return false;
+		}
+		if ($keep_alive)
+		{
+			$keep_alive_dom = $match[3];
+			$keep_alive_fp = $fp;
+		}
+		// I want this, from there, and I'm not going to be bothering you for more (probably.)
+		if (empty($post_data))
+		{
+			fwrite($fp, 'GET ' . $match[6] . ' HTTP/1.0' . "\r\n");
+			fwrite($fp, 'Host: ' . $match[3] . (empty($match[5]) ? ($match[2] ? ':443' : '') : ':' . $match[5]) . "\r\n");
+			fwrite($fp, 'User-Agent: PHP/SMF' . "\r\n");
+			if ($keep_alive)
+				fwrite($fp, 'Connection: Keep-Alive' . "\r\n\r\n");
+			else
+				fwrite($fp, 'Connection: close' . "\r\n\r\n");
+		}
+		else
+		{
+			fwrite($fp, 'POST ' . $match[6] . ' HTTP/1.0' . "\r\n");
+			fwrite($fp, 'Host: ' . $match[3] . (empty($match[5]) ? ($match[2] ? ':443' : '') : ':' . $match[5]) . "\r\n");
+			fwrite($fp, 'User-Agent: PHP/SMF' . "\r\n");
+			if ($keep_alive)
+				fwrite($fp, 'Connection: Keep-Alive' . "\r\n");
+			else
+				fwrite($fp, 'Connection: close' . "\r\n");
+			fwrite($fp, 'Content-Type: application/x-www-form-urlencoded' . "\r\n");
+			fwrite($fp, 'Content-Length: ' . strlen($post_data) . "\r\n\r\n");
+			fwrite($fp, $post_data);
+		}
+		$response = fgets($fp, 768);
+		// Redirect in case this location is permanently or temporarily moved.
+		if ($redirection_level < 3 && preg_match('~^HTTP/\S+\s+30[127]~i', $response) === 1)
+		{
+			$header = '';
+			$location = '';
+			while (!feof($fp) && trim($header = fgets($fp, 4096)) != '')
+				if (strpos($header, 'Location:') !== false)
+					$location = trim(substr($header, strpos($header, ':') + 1));
+			if (empty($location))
+				return false;
+			else
+			{
+				if (!$keep_alive)
+					fclose($fp);
+				return fetch_web_data($location, $post_data, $keep_alive, $redirection_level + 1);
+			}
+		}
+		// Make sure we get a 200 OK.
+		elseif (preg_match('~^HTTP/\S+\s+20[01]~i', $response) === 0)
+			return false;
+		// Skip the headers...
+		while (!feof($fp) && trim($header = fgets($fp, 4096)) != '')
+		{
+			if (preg_match('~content-length:\s*(\d+)~i', $header, $match) != 0)
+				$content_length = $match[1];
+			elseif (preg_match('~connection:\s*close~i', $header) != 0)
+			{
+				$keep_alive_dom = null;
+				$keep_alive = false;
+			}
+			continue;
+		}
+		$data = '';
+		if (isset($content_length))
+		{
+			while (!feof($fp) && strlen($data) < $content_length)
+				$data .= fread($fp, $content_length - strlen($data));
+		}
+		else
+		{
+			while (!feof($fp))
+				$data .= fread($fp, 4096);
+		}
+		if (!$keep_alive)
+			fclose($fp);
+	}
+	else
+	{
+		// Umm, this shouldn't happen?
+		trigger_error('fetch_web_data(): Bad URL', E_USER_NOTICE);
+		$data = false;
+	}
+	return $data;
+}
+// crc32 doesn't work as expected on 64-bit functions - make our own.
+// http://www.php.net/crc32#79567
+if (!function_exists('smf_crc32'))
+{
+	function smf_crc32($number)
+	{
+		$crc = crc32($number);
+		if ($crc & 0x80000000)
+		{
+			$crc ^= 0xffffffff;
+			$crc += 1;
+			$crc = -$crc;
+		}
+		return $crc;
+	}
+}
+?>

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