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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
+*/
+if (!defined('SMF'))
+	die('Hacking attempt...');
+/*	The following functions are all within the xmlArray class, which is the xml
+	parser.  There are more functions, but these are the ones that should be
+	used from outside the class:
+	class xmlArray(string data, bool auto_trim = false,
+			int error_level = error_reporting(), bool is_clone = false)
+		- creates a new xmlArray, which is an simple xml dom parser.
+		- data should be the xml data or an array of, unless is_clone is true.
+		- auto_trim can be used to automatically trim textual data.
+		- error_level specifies whether notices should be generated for
+		  missing elements and attributes.
+		- if is_clone is true, the xmlArray is cloned from another - used
+		  internally only.
+	string xmlArray::name()
+		- retrieves the name of the current element, usually ''.
+	string xmlArray::fetch(string path, bool get_elements = false)
+		- retrieves the textual value of the specified path.
+		- children are parsed for text, but only textual data is returned
+		  unless get_elements is true.
+	xmlArray xmlArray::path(string path, bool return_set = false)
+		- finds any elements that match the path specified.
+		- will always return a set if there is more than one of the element
+		  or return_set is true.
+		- returns in the form of a new xmlArray.
+	bool xmlArray::exists(string path)
+		- returns whether the specified path matches at least one element.
+	int xmlArray::count(string path)
+		- returns the number of elements the path matches.
+	array xmlArray::set(string path)
+		- returns an array of xmlArray's matching the specified path.
+		- this differs from ->path(path, true) in that instead of an xmlArray
+		  of elements, an array of xmlArray's is returned for use with foreach.
+	string xmlArray::create_xml(string path = '.')
+		- returns the specified path as an xml file.
+*/
+// An xml array.  Reads in xml, allows you to access it simply.  Version 1.1.
+class xmlArray
+{
+	// The array and debugging output level.
+	public $array, $debug_level, $trim;
+	// Create an xml array.
+	//	the xml data, trim elements?, debugging output level, reserved.
+	//ie. $xml = new xmlArray(file('data.xml'));
+	public function __construct($data, $auto_trim = false, $level = null, $is_clone = false)
+	{
+		// If we're using this try to get some more memory.
+		@ini_set('memory_limit', '32M');
+		// Set the debug level.
+		$this->debug_level = $level !== null ? $level : error_reporting();
+		$this->trim = $auto_trim;
+		// Is the data already parsed?
+		if ($is_clone)
+		{
+			$this->array = $data;
+			return;
+		}
+		// Is the input an array? (ie. passed from file()?)
+		if (is_array($data))
+			$data = implode('', $data);
+		// Remove any xml declaration or doctype, and parse out comments and CDATA.
+		$data = preg_replace('/<!--.*?-->/s', '', $this->_to_cdata(preg_replace(array('/^<\?xml.+?\?' . '>/is', '/<!DOCTYPE[^>]+?' . '>/s'), '', $data)));
+		// Now parse the xml!
+		$this->array = $this->_parse($data);
+	}
+	// Get the root element's name.
+	//ie. echo $element->name();
+	public function name()
+	{
+		return isset($this->array['name']) ? $this->array['name'] : '';
+	}
+	// Get a specified element's value or attribute by path.
+	//	the path to the element to fetch, whether to include elements?
+	//ie. $data = $xml->fetch('html/head/title');
+	public function fetch($path, $get_elements = false)
+	{
+		// Get the element, in array form.
+		$array = $this->path($path);
+		if ($array === false)
+			return false;
+		// Getting elements into this is a bit complicated...
+		if ($get_elements && !is_string($array))
+		{
+			$temp = '';
+			// Use the _xml() function to get the xml data.
+			foreach ($array->array as $val)
+			{
+				// Skip the name and any attributes.
+				if (is_array($val))
+					$temp .= $this->_xml($val, null);
+			}
+			// Just get the XML data and then take out the CDATAs.
+			return $this->_to_cdata($temp);
+		}
+		// Return the value - taking care to pick out all the text values.
+		return is_string($array) ? $array : $this->_fetch($array->array);
+	}
+	// Get an element, returns a new xmlArray.
+	//	the path to the element to get, always return full result set? (ie. don't contract a single item.)
+	//ie. $element = $xml->path('html/body');
+	public function path($path, $return_full = false)
+	{
+		// Split up the path.
+		$path = explode('/', $path);
+		// Start with a base array.
+		$array = $this->array;
+		// For each element in the path.
+		foreach ($path as $el)
+		{
+			// Deal with sets....
+			if (strpos($el, '[') !== false)
+			{
+				$lvl = (int) substr($el, strpos($el, '[') + 1);
+				$el = substr($el, 0, strpos($el, '['));
+			}
+			// Find an attribute.
+			elseif (substr($el, 0, 1) == '@')
+			{
+				// It simplifies things if the attribute is already there ;).
+				if (isset($array[$el]))
+					return $array[$el];
+				else
+				{
+					if (function_exists('debug_backtrace'))
+					{
+						$trace = debug_backtrace();
+						$i = 0;
+						while ($i < count($trace) && isset($trace[$i]['class']) && $trace[$i]['class'] == get_class($this))
+							$i++;
+						$debug = ' from ' . $trace[$i - 1]['file'] . ' on line ' . $trace[$i - 1]['line'];
+					}
+					else
+						$debug = '';
+					// Cause an error.
+					if ($this->debug_level & E_NOTICE)
+						trigger_error('Undefined XML attribute: ' . substr($el, 1) . $debug, E_USER_NOTICE);
+					return false;
+				}
+			}
+			else
+				$lvl = null;
+			// Find this element.
+			$array = $this->_path($array, $el, $lvl);
+		}
+		// Clean up after $lvl, for $return_full.
+		if ($return_full && (!isset($array['name']) || substr($array['name'], -1) != ']'))
+			$array = array('name' => $el . '[]', $array);
+		// Create the right type of class...
+		$newClass = get_class($this);
+		// Return a new xmlArray for the result.
+		return $array === false ? false : new $newClass($array, $this->trim, $this->debug_level, true);
+	}
+	// Check if an element exists.
+	//	the path to the element to get.
+	//ie. echo $xml->exists('html/body') ? 'y' : 'n';
+	public function exists($path)
+	{
+		// Split up the path.
+		$path = explode('/', $path);
+		// Start with a base array.
+		$array = $this->array;
+		// For each element in the path.
+		foreach ($path as $el)
+		{
+			// Deal with sets....
+			if (strpos($el, '[') !== false)
+			{
+				$lvl = (int) substr($el, strpos($el, '[') + 1);
+				$el = substr($el, 0, strpos($el, '['));
+			}
+			// Find an attribute.
+			elseif (substr($el, 0, 1) == '@')
+				return isset($array[$el]);
+			else
+				$lvl = null;
+			// Find this element.
+			$array = $this->_path($array, $el, $lvl, true);
+		}
+		return $array !== false;
+	}
+	// Count the number of occurances of a path.
+	//	the path to search for.
+	//ie. echo $xml->count('html/head/meta');
+	public function count($path)
+	{
+		// Get the element, always returning a full set.
+		$temp = $this->path($path, true);
+		// Start at zero, then count up all the numeric keys.
+		$i = 0;
+		foreach ($temp->array as $item)
+		{
+			if (is_array($item))
+				$i++;
+		}
+		return $i;
+	}
+	// Get an array of xmlArray's for use with foreach.
+	//	the path to search for.
+	//ie. foreach ($xml->set('html/body/p') as $p)
+	public function set($path)
+	{
+		// None as yet, just get the path.
+		$array = array();
+		$xml = $this->path($path, true);
+		foreach ($xml->array as $val)
+		{
+			// Skip these, they aren't elements.
+			if (!is_array($val) || $val['name'] == '!')
+				continue;
+			// Create the right type of class...
+			$newClass = get_class($this);
+			// Create a new xmlArray and stick it in the array.
+			$array[] = new $newClass($val, $this->trim, $this->debug_level, true);
+		}
+		return $array;
+	}
+	// Create an xml file from an xml array.
+	//	the path to the element. (optional)
+	//ie. echo $this->create_xml()
+	public function create_xml($path = null)
+	{
+		// Was a path specified?  If so, use that array.
+		if ($path !== null)
+		{
+			$path = $this->path($path);
+			// The path was not found
+			if ($path === false)
+				return false;
+			$path = $path->array;
+		}
+		// Just use the current array.
+		else
+			$path = $this->array;
+		// Add the xml declaration to the front.
+		return '<?xml version="1.0"?' . '>' . $this->_xml($path, 0);
+	}
+	// Output the xml in an array form.
+	//	the path to output.
+	//ie. print_r($xml->to_array());
+	public function to_array($path = null)
+	{
+		// Are we doing a specific path?
+		if ($path !== null)
+		{
+			$path = $this->path($path);
+			// The path was not found
+			if ($path === false)
+				return false;
+			$path = $path->array;
+		}
+		// No, so just use the current array.
+		else
+			$path = $this->array;
+		return $this->_array($path);
+	}
+	// Parse data into an array. (privately used...)
+	protected function _parse($data)
+	{
+		// Start with an 'empty' array with no data.
+		$current = array(
+		);
+		// Loop until we're out of data.
+		while ($data != '')
+		{
+			// Find and remove the next tag.
+			preg_match('/\A<([\w\-:]+)((?:\s+.+?)?)([\s]?\/)?' . '>/', $data, $match);
+			if (isset($match[0]))
+				$data = preg_replace('/' . preg_quote($match[0], '/') . '/s', '', $data, 1);
+			// Didn't find a tag?  Keep looping....
+			if (!isset($match[1]) || $match[1] == '')
+			{
+				// If there's no <, the rest is data.
+				if (strpos($data, '<') === false)
+				{
+					$text_value = $this->_from_cdata($data);
+					$data = '';
+					if ($text_value != '')
+						$current[] = array(
+							'name' => '!',
+							'value' => $text_value
+						);
+				}
+				// If the < isn't immediately next to the current position... more data.
+				elseif (strpos($data, '<') > 0)
+				{
+					$text_value = $this->_from_cdata(substr($data, 0, strpos($data, '<')));
+					$data = substr($data, strpos($data, '<'));
+					if ($text_value != '')
+						$current[] = array(
+							'name' => '!',
+							'value' => $text_value
+						);
+				}
+				// If we're looking at a </something> with no start, kill it.
+				elseif (strpos($data, '<') !== false && strpos($data, '<') == 0)
+				{
+					if (strpos($data, '<', 1) !== false)
+					{
+						$text_value = $this->_from_cdata(substr($data, 0, strpos($data, '<', 1)));
+						$data = substr($data, strpos($data, '<', 1));
+						if ($text_value != '')
+							$current[] = array(
+								'name' => '!',
+								'value' => $text_value
+							);
+					}
+					else
+					{
+						$text_value = $this->_from_cdata($data);
+						$data = '';
+						if ($text_value != '')
+							$current[] = array(
+								'name' => '!',
+								'value' => $text_value
+							);
+					}
+				}
+				// Wait for an actual occurance of an element.
+				continue;
+			}
+			// Create a new element in the array.
+			$el = &$current[];
+			$el['name'] = $match[1];
+			// If this ISN'T empty, remove the close tag and parse the inner data.
+			if ((!isset($match[3]) || trim($match[3]) != '/') && (!isset($match[2]) || trim($match[2]) != '/'))
+			{
+				// Because PHP 5.2.0+ seems to croak using regex, we'll have to do this the less fun way.
+				$last_tag_end = strpos($data, '</' . $match[1]. '>');
+				if ($last_tag_end === false)
+					continue;
+				$offset = 0;
+				while (1 == 1)
+				{
+					// Where is the next start tag?
+					$next_tag_start = strpos($data, '<' . $match[1], $offset);
+					// If the next start tag is after the last end tag then we've found the right close.
+					if ($next_tag_start === false || $next_tag_start > $last_tag_end)
+						break;
+					// If not then find the next ending tag.
+					$next_tag_end = strpos($data, '</' . $match[1]. '>', $offset);
+					// Didn't find one? Then just use the last and sod it.
+					if ($next_tag_end === false)
+						break;
+					else
+					{
+						$last_tag_end = $next_tag_end;
+						$offset = $next_tag_start + 1;
+					}
+				}
+				// Parse the insides.
+				$inner_match = substr($data, 0, $last_tag_end);
+				// Data now starts from where this section ends.
+				$data = substr($data, $last_tag_end + strlen('</' . $match[1]. '>'));
+				if (!empty($inner_match))
+				{
+					// Parse the inner data.
+					if (strpos($inner_match, '<') !== false)
+						$el += $this->_parse($inner_match);
+					elseif (trim($inner_match) != '')
+					{
+						$text_value = $this->_from_cdata($inner_match);
+						if ($text_value != '')
+							$el[] = array(
+								'name' => '!',
+								'value' => $text_value
+							);
+					}
+				}
+			}
+			// If we're dealing with attributes as well, parse them out.
+			if (isset($match[2]) && $match[2] != '')
+			{
+				// Find all the attribute pairs in the string.
+				preg_match_all('/([\w:]+)="(.+?)"/', $match[2], $attr, PREG_SET_ORDER);
+				// Set them as @attribute-name.
+				foreach ($attr as $match_attr)
+					$el['@' . $match_attr[1]] = $match_attr[2];
+			}
+		}
+		// Return the parsed array.
+		return $current;
+	}
+	// Get a specific element's xml. (privately used...)
+	protected function _xml($array, $indent)
+	{
+		$indentation = $indent !== null ? '
+' . str_repeat('	', $indent) : '';
+		// This is a set of elements, with no name...
+		if (is_array($array) && !isset($array['name']))
+		{
+			$temp = '';
+			foreach ($array as $val)
+				$temp .= $this->_xml($val, $indent);
+			return $temp;
+		}
+		// This is just text!
+		if ($array['name'] == '!')
+			return $indentation . '<![CDATA[' . $array['value'] . ']]>';
+		elseif (substr($array['name'], -2) == '[]')
+			$array['name'] = substr($array['name'], 0, -2);
+		// Start the element.
+		$output = $indentation . '<' . $array['name'];
+		$inside_elements = false;
+		$output_el = '';
+		// Run through and recurively output all the elements or attrbutes inside this.
+		foreach ($array as $k => $v)
+		{
+			if (substr($k, 0, 1) == '@')
+				$output .= ' ' . substr($k, 1) . '="' . $v . '"';
+			elseif (is_array($v))
+			{
+				$output_el .= $this->_xml($v, $indent === null ? null : $indent + 1);
+				$inside_elements = true;
+			}
+		}
+		// Indent, if necessary.... then close the tag.
+		if ($inside_elements)
+			$output .= '>' . $output_el . $indentation . '</' . $array['name'] . '>';
+		else
+			$output .= ' />';
+		return $output;
+	}
+	// Return an element as an array...
+	protected function _array($array)
+	{
+		$return = array();
+		$text = '';
+		foreach ($array as $value)
+		{
+			if (!is_array($value) || !isset($value['name']))
+				continue;
+			if ($value['name'] == '!')
+				$text .= $value['value'];
+			else
+				$return[$value['name']] = $this->_array($value);
+		}
+		if (empty($return))
+			return $text;
+		else
+			return $return;
+	}
+	// Parse out CDATA tags. (htmlspecialchars them...)
+	function _to_cdata($data)
+	{
+		$inCdata = $inComment = false;
+		$output = '';
+		$parts = preg_split('~(<!\[CDATA\[|\]\]>|<!--|-->)~', $data, -1, PREG_SPLIT_DELIM_CAPTURE);
+		foreach ($parts as $part)
+		{
+			// Handle XML comments.
+			if (!$inCdata && $part === '<!--')
+				$inComment = true;
+			if ($inComment && $part === '-->')
+				$inComment = false;
+			elseif ($inComment)
+				continue;
+			// Handle Cdata blocks.
+			elseif (!$inComment && $part === '<![CDATA[')
+				$inCdata = true;
+			elseif ($inCdata && $part === ']]>')
+				$inCdata = false;
+			elseif ($inCdata)
+				$output .= htmlentities($part, ENT_QUOTES);
+			// Everything else is kept as is.
+			else
+				$output .= $part;
+		}
+		return $output;
+	}
+	// Turn the CDATAs back to normal text.
+	protected function _from_cdata($data)
+	{
+		// Get the HTML translation table and reverse it.
+		$trans_tbl = array_flip(get_html_translation_table(HTML_ENTITIES, ENT_QUOTES));
+		// Translate all the entities out.
+		$data = strtr(preg_replace('~&#(\d{1,4});~e', "chr('\$1')", $data), $trans_tbl);
+		return $this->trim ? trim($data) : $data;
+	}
+	// Given an array, return the text from that array. (recursive and privately used.)
+	protected function _fetch($array)
+	{
+		// Don't return anything if this is just a string.
+		if (is_string($array))
+			return '';
+		$temp = '';
+		foreach ($array as $text)
+		{
+			// This means it's most likely an attribute or the name itself.
+			if (!isset($text['name']))
+				continue;
+			// This is text!
+			if ($text['name'] == '!')
+				$temp .= $text['value'];
+			// Another element - dive in ;).
+			else
+				$temp .= $this->_fetch($text);
+		}
+		// Return all the bits and pieces we've put together.
+		return $temp;
+	}
+	// Get a specific array by path, one level down. (privately used...)
+	protected function _path($array, $path, $level, $no_error = false)
+	{
+		// Is $array even an array?  It might be false!
+		if (!is_array($array))
+			return false;
+		// Asking for *no* path?
+		if ($path == '' || $path == '.')
+			return $array;
+		$paths = explode('|', $path);
+		// A * means all elements of any name.
+		$show_all = in_array('*', $paths);
+		$results = array();
+		// Check each element.
+		foreach ($array as $value)
+		{
+			if (!is_array($value) || $value['name'] === '!')
+				continue;
+			if ($show_all || in_array($value['name'], $paths))
+			{
+				// Skip elements before "the one".
+				if ($level !== null && $level > 0)
+					$level--;
+				else
+					$results[] = $value;
+			}
+		}
+		// No results found...
+		if (empty($results))
+		{
+			if (function_exists('debug_backtrace'))
+			{
+				$trace = debug_backtrace();
+				$i = 0;
+				while ($i < count($trace) && isset($trace[$i]['class']) && $trace[$i]['class'] == get_class($this))
+					$i++;
+				$debug = ' from ' . $trace[$i - 1]['file'] . ' on line ' . $trace[$i - 1]['line'];
+			}
+			else
+				$debug = '';
+			// Cause an error.
+			if ($this->debug_level & E_NOTICE && !$no_error)
+				trigger_error('Undefined XML element: ' . $path . $debug, E_USER_NOTICE);
+			return false;
+		}
+		// Only one result.
+		elseif (count($results) == 1 || $level !== null)
+			return $results[0];
+		// Return the result set.
+		else
+			return $results + array('name' => $path . '[]');
+	}
+}
+// http://www.faqs.org/rfcs/rfc959.html
+if (!class_exists('ftp_connection'))
+{
+	class ftp_connection
+	{
+		public $connection, $error, $last_message, $pasv;
+		// Create a new FTP connection...
+		public function __construct($ftp_server, $ftp_port = 21, $ftp_user = 'anonymous', $ftp_pass = 'ftpclient@simplemachines.org')
+		{
+			// Initialize variables.
+			$this->connection = 'no_connection';
+			$this->error = false;
+			$this->pasv = array();
+			if ($ftp_server !== null)
+				$this->connect($ftp_server, $ftp_port, $ftp_user, $ftp_pass);
+		}
+		public function connect($ftp_server, $ftp_port = 21, $ftp_user = 'anonymous', $ftp_pass = 'ftpclient@simplemachines.org')
+		{
+			if (substr($ftp_server, 0, 6) == 'ftp://')
+				$ftp_server = substr($ftp_server, 6);
+			elseif (substr($ftp_server, 0, 7) == 'ftps://')
+				$ftp_server = 'ssl://' . substr($ftp_server, 7);
+			if (substr($ftp_server, 0, 7) == 'http://')
+				$ftp_server = substr($ftp_server, 7);
+			$ftp_server = strtr($ftp_server, array('/' => '', ':' => '', '@' => ''));
+			// Connect to the FTP server.
+			$this->connection = @fsockopen($ftp_server, $ftp_port, $err, $err, 5);
+			if (!$this->connection)
+			{
+				$this->error = 'bad_server';
+				return;
+			}
+			// Get the welcome message...
+			if (!$this->check_response(220))
+			{
+				$this->error = 'bad_response';
+				return;
+			}
+			// Send the username, it should ask for a password.
+			fwrite($this->connection, 'USER ' . $ftp_user . "\r\n");
+			if (!$this->check_response(331))
+			{
+				$this->error = 'bad_username';
+				return;
+			}
+			// Now send the password... and hope it goes okay.
+			fwrite($this->connection, 'PASS ' . $ftp_pass . "\r\n");
+			if (!$this->check_response(230))
+			{
+				$this->error = 'bad_password';
+				return;
+			}
+		}
+		public function chdir($ftp_path)
+		{
+			if (!is_resource($this->connection))
+				return false;
+			// No slash on the end, please...
+			if ($ftp_path !== '/' && substr($ftp_path, -1) === '/')
+				$ftp_path = substr($ftp_path, 0, -1);
+			fwrite($this->connection, 'CWD ' . $ftp_path . "\r\n");
+			if (!$this->check_response(250))
+			{
+				$this->error = 'bad_path';
+				return false;
+			}
+			return true;
+		}
+		public function chmod($ftp_file, $chmod)
+		{
+			if (!is_resource($this->connection))
+				return false;
+			if ($ftp_file == '')
+				$ftp_file = '.';
+			// Convert the chmod value from octal (0777) to text ("777").
+			fwrite($this->connection, 'SITE CHMOD ' . decoct($chmod) . ' ' . $ftp_file . "\r\n");
+			if (!$this->check_response(200))
+			{
+				$this->error = 'bad_file';
+				return false;
+			}
+			return true;
+		}
+		public function unlink($ftp_file)
+		{
+			// We are actually connected, right?
+			if (!is_resource($this->connection))
+				return false;
+			// Delete file X.
+			fwrite($this->connection, 'DELE ' . $ftp_file . "\r\n");
+			if (!$this->check_response(250))
+			{
+				fwrite($this->connection, 'RMD ' . $ftp_file . "\r\n");
+				// Still no love?
+				if (!$this->check_response(250))
+				{
+					$this->error = 'bad_file';
+					return false;
+				}
+			}
+			return true;
+		}
+		public function check_response($desired)
+		{
+			// Wait for a response that isn't continued with -, but don't wait too long.
+			$time = time();
+			do
+				$this->last_message = fgets($this->connection, 1024);
+			while ((strlen($this->last_message) < 4 || substr($this->last_message, 0, 1) == ' ' || substr($this->last_message, 3, 1) != ' ') && time() - $time < 5);
+			// Was the desired response returned?
+			return is_array($desired) ? in_array(substr($this->last_message, 0, 3), $desired) : substr($this->last_message, 0, 3) == $desired;
+		}
+		public function passive()
+		{
+			// We can't create a passive data connection without a primary one first being there.
+			if (!is_resource($this->connection))
+				return false;
+			// Request a passive connection - this means, we'll talk to you, you don't talk to us.
+			@fwrite($this->connection, 'PASV' . "\r\n");
+			$time = time();
+			do
+				$response = fgets($this->connection, 1024);
+			while (substr($response, 3, 1) != ' ' && time() - $time < 5);
+			// If it's not 227, we weren't given an IP and port, which means it failed.
+			if (substr($response, 0, 4) != '227 ')
+			{
+				$this->error = 'bad_response';
+				return false;
+			}
+			// Snatch the IP and port information, or die horribly trying...
+			if (preg_match('~\((\d+),\s*(\d+),\s*(\d+),\s*(\d+),\s*(\d+)(?:,\s*(\d+))\)~', $response, $match) == 0)
+			{
+				$this->error = 'bad_response';
+				return false;
+			}
+			// This is pretty simple - store it for later use ;).
+			$this->pasv = array('ip' => $match[1] . '.' . $match[2] . '.' . $match[3] . '.' . $match[4], 'port' => $match[5] * 256 + $match[6]);
+			return true;
+		}
+		public function create_file($ftp_file)
+		{
+			// First, we have to be connected... very important.
+			if (!is_resource($this->connection))
+				return false;
+			// I'd like one passive mode, please!
+			if (!$this->passive())
+				return false;
+			// Seems logical enough, so far...
+			fwrite($this->connection, 'STOR ' . $ftp_file . "\r\n");
+			// Okay, now we connect to the data port.  If it doesn't work out, it's probably "file already exists", etc.
+			$fp = @fsockopen($this->pasv['ip'], $this->pasv['port'], $err, $err, 5);
+			if (!$fp || !$this->check_response(150))
+			{
+				$this->error = 'bad_file';
+				@fclose($fp);
+				return false;
+			}
+			// This may look strange, but we're just closing it to indicate a zero-byte upload.
+			fclose($fp);
+			if (!$this->check_response(226))
+			{
+				$this->error = 'bad_response';
+				return false;
+			}
+			return true;
+		}
+		public function list_dir($ftp_path = '', $search = false)
+		{
+			// Are we even connected...?
+			if (!is_resource($this->connection))
+				return false;
+			// Passive... non-agressive...
+			if (!$this->passive())
+				return false;
+			// Get the listing!
+			fwrite($this->connection, 'LIST -1' . ($search ? 'R' : '') . ($ftp_path == '' ? '' : ' ' . $ftp_path) . "\r\n");
+			// Connect, assuming we've got a connection.
+			$fp = @fsockopen($this->pasv['ip'], $this->pasv['port'], $err, $err, 5);
+			if (!$fp || !$this->check_response(array(150, 125)))
+			{
+				$this->error = 'bad_response';
+				@fclose($fp);
+				return false;
+			}
+			// Read in the file listing.
+			$data = '';
+			while (!feof($fp))
+				$data .= fread($fp, 4096);
+			fclose($fp);
+			// Everything go okay?
+			if (!$this->check_response(226))
+			{
+				$this->error = 'bad_response';
+				return false;
+			}
+			return $data;
+		}
+		public function locate($file, $listing = null)
+		{
+			if ($listing === null)
+				$listing = $this->list_dir('', true);
+			$listing = explode("\n", $listing);
+			@fwrite($this->connection, 'PWD' . "\r\n");
+			$time = time();
+			do
+				$response = fgets($this->connection, 1024);
+			while ($response[3] != ' ' && time() - $time < 5);
+			// Check for 257!
+			if (preg_match('~^257 "(.+?)" ~', $response, $match) != 0)
+				$current_dir = strtr($match[1], array('""' => '"'));
+			else
+				$current_dir = '';
+			for ($i = 0, $n = count($listing); $i < $n; $i++)
+			{
+				if (trim($listing[$i]) == '' && isset($listing[$i + 1]))
+				{
+					$current_dir = substr(trim($listing[++$i]), 0, -1);
+					$i++;
+				}
+				// Okay, this file's name is:
+				$listing[$i] = $current_dir . '/' . trim(strlen($listing[$i]) > 30 ? strrchr($listing[$i], ' ') : $listing[$i]);
+				if ($file[0] == '*' && substr($listing[$i], -(strlen($file) - 1)) == substr($file, 1))
+					return $listing[$i];
+				if (substr($file, -1) == '*' && substr($listing[$i], 0, strlen($file) - 1) == substr($file, 0, -1))
+					return $listing[$i];
+				if (basename($listing[$i]) == $file || $listing[$i] == $file)
+					return $listing[$i];
+			}
+			return false;
+		}
+		public function create_dir($ftp_dir)
+		{
+			// We must be connected to the server to do something.
+			if (!is_resource($this->connection))
+				return false;
+			// Make this new beautiful directory!
+			fwrite($this->connection, 'MKD ' . $ftp_dir . "\r\n");
+			if (!$this->check_response(257))
+			{
+				$this->error = 'bad_file';
+				return false;
+			}
+			return true;
+		}
+		public function detect_path($filesystem_path, $lookup_file = null)
+		{
+			$username = '';
+			if (isset($_SERVER['DOCUMENT_ROOT']))
+			{
+				if (preg_match('~^/home[2]?/([^/]+?)/public_html~', $_SERVER['DOCUMENT_ROOT'], $match))
+				{
+					$username = $match[1];
+					$path = strtr($_SERVER['DOCUMENT_ROOT'], array('/home/' . $match[1] . '/' => '', '/home2/' . $match[1] . '/' => ''));
+					if (substr($path, -1) == '/')
+						$path = substr($path, 0, -1);
+					if (strlen(dirname($_SERVER['PHP_SELF'])) > 1)
+						$path .= dirname($_SERVER['PHP_SELF']);
+				}
+				elseif (substr($filesystem_path, 0, 9) == '/var/www/')
+					$path = substr($filesystem_path, 8);
+				else
+					$path = strtr(strtr($filesystem_path, array('\\' => '/')), array($_SERVER['DOCUMENT_ROOT'] => ''));
+			}
+			else
+				$path = '';
+			if (is_resource($this->connection) && $this->list_dir($path) == '')
+			{
+				$data = $this->list_dir('', true);
+				if ($lookup_file === null)
+					$lookup_file = $_SERVER['PHP_SELF'];
+				$found_path = dirname($this->locate('*' . basename(dirname($lookup_file)) . '/' . basename($lookup_file), $data));
+				if ($found_path == false)
+					$found_path = dirname($this->locate(basename($lookup_file)));
+				if ($found_path != false)
+					$path = $found_path;
+			}
+			elseif (is_resource($this->connection))
+				$found_path = true;
+			return array($username, $path, isset($found_path));
+		}
+		public function close()
+		{
+			// Goodbye!
+			fwrite($this->connection, 'QUIT' . "\r\n");
+			fclose($this->connection);
+			return true;
+		}
+	}
+}
+?>

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