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class-snoopy.php (37715B)

---

 <?php
 
 /**
  * Deprecated. Use WP_HTTP (http.php) instead.
  */
 _deprecated_file( basename( __FILE__ ), '3.0.0', WPINC . '/http.php' );
 
 if ( ! class_exists( 'Snoopy', false ) ) :
 /*************************************************
 
 Snoopy - the PHP net client
 Author: Monte Ohrt <monte@ispi.net>
 Copyright (c): 1999-2008 New Digital Group, all rights reserved
 Version: 1.2.4
 
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 You may contact the author of Snoopy by e-mail at:
 monte@ohrt.com
 
 The latest version of Snoopy can be obtained from:
 http://snoopy.sourceforge.net/
 
 *************************************************/
 
 class Snoopy
 {
 	/**** Public variables ****/
 
 	/* user definable vars */
 
 	var $host			=	"www.php.net";		// host name we are connecting to
 	var $port			=	80;					// port we are connecting to
 	var $proxy_host		=	"";					// proxy host to use
 	var $proxy_port		=	"";					// proxy port to use
 	var $proxy_user		=	"";					// proxy user to use
 	var $proxy_pass		=	"";					// proxy password to use
 
 	var $agent			=	"Snoopy v1.2.4";	// agent we masquerade as
 	var	$referer		=	"";					// referer info to pass
 	var $cookies		=	array();			// array of cookies to pass
 												// $cookies["username"]="joe";
 	var	$rawheaders		=	array();			// array of raw headers to send
 												// $rawheaders["Content-type"]="text/html";
 
 	var $maxredirs		=	5;					// http redirection depth maximum. 0 = disallow
 	var $lastredirectaddr	=	"";				// contains address of last redirected address
 	var	$offsiteok		=	true;				// allows redirection off-site
 	var $maxframes		=	0;					// frame content depth maximum. 0 = disallow
 	var $expandlinks	=	true;				// expand links to fully qualified URLs.
 												// this only applies to fetchlinks()
 												// submitlinks(), and submittext()
 	var $passcookies	=	true;				// pass set cookies back through redirects
 												// NOTE: this currently does not respect
 												// dates, domains or paths.
 
 	var	$user			=	"";					// user for http authentication
 	var	$pass			=	"";					// password for http authentication
 
 	// http accept types
 	var $accept			=	"image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*";
 
 	var $results		=	"";					// where the content is put
 
 	var $error			=	"";					// error messages sent here
 	var	$response_code	=	"";					// response code returned from server
 	var	$headers		=	array();			// headers returned from server sent here
 	var	$maxlength		=	500000;				// max return data length (body)
 	var $read_timeout	=	0;					// timeout on read operations, in seconds
 												// supported only since PHP 4 Beta 4
 												// set to 0 to disallow timeouts
 	var $timed_out		=	false;				// if a read operation timed out
 	var	$status			=	0;					// http request status
 
 	var $temp_dir		=	"/tmp";				// temporary directory that the webserver
 												// has permission to write to.
 												// under Windows, this should be C:\temp
 
 	var	$curl_path		=	"/usr/local/bin/curl";
 												// Snoopy will use cURL for fetching
 												// SSL content if a full system path to
 												// the cURL binary is supplied here.
 												// set to false if you do not have
 												// cURL installed. See http://curl.haxx.se
 												// for details on installing cURL.
 												// Snoopy does *not* use the cURL
 												// library functions built into php,
 												// as these functions are not stable
 												// as of this Snoopy release.
 
 	/**** Private variables ****/
 
 	var	$_maxlinelen	=	4096;				// max line length (headers)
 
 	var $_httpmethod	=	"GET";				// default http request method
 	var $_httpversion	=	"HTTP/1.0";			// default http request version
 	var $_submit_method	=	"POST";				// default submit method
 	var $_submit_type	=	"application/x-www-form-urlencoded";	// default submit type
 	var $_mime_boundary	=   "";					// MIME boundary for multipart/form-data submit type
 	var $_redirectaddr	=	false;				// will be set if page fetched is a redirect
 	var $_redirectdepth	=	0;					// increments on an http redirect
 	var $_frameurls		= 	array();			// frame src urls
 	var $_framedepth	=	0;					// increments on frame depth
 
 	var $_isproxy		=	false;				// set if using a proxy server
 	var $_fp_timeout	=	30;					// timeout for socket connection
 
 /*======================================================================*\
 	Function:	fetch
 	Purpose:	fetch the contents of a web page
 				(and possibly other protocols in the
 				future like ftp, nntp, gopher, etc.)
 	Input:		$URI	the location of the page to fetch
 	Output:		$this->results	the output text from the fetch
 \*======================================================================*/
 
 	function fetch($URI)
 	{
 
 		//preg_match("|^([^:]+)://([^:/]+)(:[\d]+)*(.*)|",$URI,$URI_PARTS);
 		$URI_PARTS = parse_url($URI);
 		if (!empty($URI_PARTS["user"]))
 			$this->user = $URI_PARTS["user"];
 		if (!empty($URI_PARTS["pass"]))
 			$this->pass = $URI_PARTS["pass"];
 		if (empty($URI_PARTS["query"]))
 			$URI_PARTS["query"] = '';
 		if (empty($URI_PARTS["path"]))
 			$URI_PARTS["path"] = '';
 
 		switch(strtolower($URI_PARTS["scheme"]))
 		{
 			case "http":
 				$this->host = $URI_PARTS["host"];
 				if(!empty($URI_PARTS["port"]))
 					$this->port = $URI_PARTS["port"];
 				if($this->_connect($fp))
 				{
 					if($this->_isproxy)
 					{
 						// using proxy, send entire URI
 						$this->_httprequest($URI,$fp,$URI,$this->_httpmethod);
 					}
 					else
 					{
 						$path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : "");
 						// no proxy, send only the path
 						$this->_httprequest($path, $fp, $URI, $this->_httpmethod);
 					}
 
 					$this->_disconnect($fp);
 
 					if($this->_redirectaddr)
 					{
 						/* url was redirected, check if we've hit the max depth */
 						if($this->maxredirs > $this->_redirectdepth)
 						{
 							// only follow redirect if it's on this site, or offsiteok is true
 							if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok)
 							{
 								/* follow the redirect */
 								$this->_redirectdepth++;
 								$this->lastredirectaddr=$this->_redirectaddr;
 								$this->fetch($this->_redirectaddr);
 							}
 						}
 					}
 
 					if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0)
 					{
 						$frameurls = $this->_frameurls;
 						$this->_frameurls = array();
 
 						foreach ( $frameurls as $frameurl )
 						{
 							if($this->_framedepth < $this->maxframes)
 							{
 								$this->fetch($frameurl);
 								$this->_framedepth++;
 							}
 							else
 								break;
 						}
 					}
 				}
 				else
 				{
 					return false;
 				}
 				return true;
 				break;
 			case "https":
 				if(!$this->curl_path)
 					return false;
 				if(function_exists("is_executable"))
 				    if (!is_executable($this->curl_path))
 				        return false;
 				$this->host = $URI_PARTS["host"];
 				if(!empty($URI_PARTS["port"]))
 					$this->port = $URI_PARTS["port"];
 				if($this->_isproxy)
 				{
 					// using proxy, send entire URI
 					$this->_httpsrequest($URI,$URI,$this->_httpmethod);
 				}
 				else
 				{
 					$path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : "");
 					// no proxy, send only the path
 					$this->_httpsrequest($path, $URI, $this->_httpmethod);
 				}
 
 				if($this->_redirectaddr)
 				{
 					/* url was redirected, check if we've hit the max depth */
 					if($this->maxredirs > $this->_redirectdepth)
 					{
 						// only follow redirect if it's on this site, or offsiteok is true
 						if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok)
 						{
 							/* follow the redirect */
 							$this->_redirectdepth++;
 							$this->lastredirectaddr=$this->_redirectaddr;
 							$this->fetch($this->_redirectaddr);
 						}
 					}
 				}
 
 				if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0)
 				{
 					$frameurls = $this->_frameurls;
 					$this->_frameurls = array();
 
 					foreach ( $frameurls as $frameurl )
 					{
 						if($this->_framedepth < $this->maxframes)
 						{
 							$this->fetch($frameurl);
 							$this->_framedepth++;
 						}
 						else
 							break;
 					}
 				}
 				return true;
 				break;
 			default:
 				// not a valid protocol
 				$this->error	=	'Invalid protocol "'.$URI_PARTS["scheme"].'"\n';
 				return false;
 				break;
 		}
 		return true;
 	}
 
 /*======================================================================*\
 	Function:	submit
 	Purpose:	submit an http form
 	Input:		$URI	the location to post the data
 				$formvars	the formvars to use.
 					format: $formvars["var"] = "val";
 				$formfiles  an array of files to submit
 					format: $formfiles["var"] = "/dir/filename.ext";
 	Output:		$this->results	the text output from the post
 \*======================================================================*/
 
 	function submit($URI, $formvars="", $formfiles="")
 	{
 		unset($postdata);
 
 		$postdata = $this->_prepare_post_body($formvars, $formfiles);
 
 		$URI_PARTS = parse_url($URI);
 		if (!empty($URI_PARTS["user"]))
 			$this->user = $URI_PARTS["user"];
 		if (!empty($URI_PARTS["pass"]))
 			$this->pass = $URI_PARTS["pass"];
 		if (empty($URI_PARTS["query"]))
 			$URI_PARTS["query"] = '';
 		if (empty($URI_PARTS["path"]))
 			$URI_PARTS["path"] = '';
 
 		switch(strtolower($URI_PARTS["scheme"]))
 		{
 			case "http":
 				$this->host = $URI_PARTS["host"];
 				if(!empty($URI_PARTS["port"]))
 					$this->port = $URI_PARTS["port"];
 				if($this->_connect($fp))
 				{
 					if($this->_isproxy)
 					{
 						// using proxy, send entire URI
 						$this->_httprequest($URI,$fp,$URI,$this->_submit_method,$this->_submit_type,$postdata);
 					}
 					else
 					{
 						$path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : "");
 						// no proxy, send only the path
 						$this->_httprequest($path, $fp, $URI, $this->_submit_method, $this->_submit_type, $postdata);
 					}
 
 					$this->_disconnect($fp);
 
 					if($this->_redirectaddr)
 					{
 						/* url was redirected, check if we've hit the max depth */
 						if($this->maxredirs > $this->_redirectdepth)
 						{
 							if(!preg_match("|^".$URI_PARTS["scheme"]."://|", $this->_redirectaddr))
 								$this->_redirectaddr = $this->_expandlinks($this->_redirectaddr,$URI_PARTS["scheme"]."://".$URI_PARTS["host"]);
 
 							// only follow redirect if it's on this site, or offsiteok is true
 							if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok)
 							{
 								/* follow the redirect */
 								$this->_redirectdepth++;
 								$this->lastredirectaddr=$this->_redirectaddr;
 								if( strpos( $this->_redirectaddr, "?" ) > 0 )
 									$this->fetch($this->_redirectaddr); // the redirect has changed the request method from post to get
 								else
 									$this->submit($this->_redirectaddr,$formvars, $formfiles);
 							}
 						}
 					}
 
 					if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0)
 					{
 						$frameurls = $this->_frameurls;
 						$this->_frameurls = array();
 
 						foreach ( $frameurls as $frameurl )
 						{
 							if($this->_framedepth < $this->maxframes)
 							{
 								$this->fetch($frameurl);
 								$this->_framedepth++;
 							}
 							else
 								break;
 						}
 					}
 
 				}
 				else
 				{
 					return false;
 				}
 				return true;
 				break;
 			case "https":
 				if(!$this->curl_path)
 					return false;
 				if(function_exists("is_executable"))
 				    if (!is_executable($this->curl_path))
 				        return false;
 				$this->host = $URI_PARTS["host"];
 				if(!empty($URI_PARTS["port"]))
 					$this->port = $URI_PARTS["port"];
 				if($this->_isproxy)
 				{
 					// using proxy, send entire URI
 					$this->_httpsrequest($URI, $URI, $this->_submit_method, $this->_submit_type, $postdata);
 				}
 				else
 				{
 					$path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : "");
 					// no proxy, send only the path
 					$this->_httpsrequest($path, $URI, $this->_submit_method, $this->_submit_type, $postdata);
 				}
 
 				if($this->_redirectaddr)
 				{
 					/* url was redirected, check if we've hit the max depth */
 					if($this->maxredirs > $this->_redirectdepth)
 					{
 						if(!preg_match("|^".$URI_PARTS["scheme"]."://|", $this->_redirectaddr))
 							$this->_redirectaddr = $this->_expandlinks($this->_redirectaddr,$URI_PARTS["scheme"]."://".$URI_PARTS["host"]);
 
 						// only follow redirect if it's on this site, or offsiteok is true
 						if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok)
 						{
 							/* follow the redirect */
 							$this->_redirectdepth++;
 							$this->lastredirectaddr=$this->_redirectaddr;
 							if( strpos( $this->_redirectaddr, "?" ) > 0 )
 								$this->fetch($this->_redirectaddr); // the redirect has changed the request method from post to get
 							else
 								$this->submit($this->_redirectaddr,$formvars, $formfiles);
 						}
 					}
 				}
 
 				if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0)
 				{
 					$frameurls = $this->_frameurls;
 					$this->_frameurls = array();
 
 					foreach ( $frameurls as $frameurl )
 					{
 						if($this->_framedepth < $this->maxframes)
 						{
 							$this->fetch($frameurl);
 							$this->_framedepth++;
 						}
 						else
 							break;
 					}
 				}
 				return true;
 				break;
 
 			default:
 				// not a valid protocol
 				$this->error	=	'Invalid protocol "'.$URI_PARTS["scheme"].'"\n';
 				return false;
 				break;
 		}
 		return true;
 	}
 
 /*======================================================================*\
 	Function:	fetchlinks
 	Purpose:	fetch the links from a web page
 	Input:		$URI	where you are fetching from
 	Output:		$this->results	an array of the URLs
 \*======================================================================*/
 
 	function fetchlinks($URI)
 	{
 		if ($this->fetch($URI))
 		{
 			if($this->lastredirectaddr)
 				$URI = $this->lastredirectaddr;
 			if(is_array($this->results))
 			{
 				for($x=0;$x<count($this->results);$x++)
 					$this->results[$x] = $this->_striplinks($this->results[$x]);
 			}
 			else
 				$this->results = $this->_striplinks($this->results);
 
 			if($this->expandlinks)
 				$this->results = $this->_expandlinks($this->results, $URI);
 			return true;
 		}
 		else
 			return false;
 	}
 
 /*======================================================================*\
 	Function:	fetchform
 	Purpose:	fetch the form elements from a web page
 	Input:		$URI	where you are fetching from
 	Output:		$this->results	the resulting html form
 \*======================================================================*/
 
 	function fetchform($URI)
 	{
 
 		if ($this->fetch($URI))
 		{
 
 			if(is_array($this->results))
 			{
 				for($x=0;$x<count($this->results);$x++)
 					$this->results[$x] = $this->_stripform($this->results[$x]);
 			}
 			else
 				$this->results = $this->_stripform($this->results);
 
 			return true;
 		}
 		else
 			return false;
 	}
 
 
 /*======================================================================*\
 	Function:	fetchtext
 	Purpose:	fetch the text from a web page, stripping the links
 	Input:		$URI	where you are fetching from
 	Output:		$this->results	the text from the web page
 \*======================================================================*/
 
 	function fetchtext($URI)
 	{
 		if($this->fetch($URI))
 		{
 			if(is_array($this->results))
 			{
 				for($x=0;$x<count($this->results);$x++)
 					$this->results[$x] = $this->_striptext($this->results[$x]);
 			}
 			else
 				$this->results = $this->_striptext($this->results);
 			return true;
 		}
 		else
 			return false;
 	}
 
 /*======================================================================*\
 	Function:	submitlinks
 	Purpose:	grab links from a form submission
 	Input:		$URI	where you are submitting from
 	Output:		$this->results	an array of the links from the post
 \*======================================================================*/
 
 	function submitlinks($URI, $formvars="", $formfiles="")
 	{
 		if($this->submit($URI,$formvars, $formfiles))
 		{
 			if($this->lastredirectaddr)
 				$URI = $this->lastredirectaddr;
 			if(is_array($this->results))
 			{
 				for($x=0;$x<count($this->results);$x++)
 				{
 					$this->results[$x] = $this->_striplinks($this->results[$x]);
 					if($this->expandlinks)
 						$this->results[$x] = $this->_expandlinks($this->results[$x],$URI);
 				}
 			}
 			else
 			{
 				$this->results = $this->_striplinks($this->results);
 				if($this->expandlinks)
 					$this->results = $this->_expandlinks($this->results,$URI);
 			}
 			return true;
 		}
 		else
 			return false;
 	}
 
 /*======================================================================*\
 	Function:	submittext
 	Purpose:	grab text from a form submission
 	Input:		$URI	where you are submitting from
 	Output:		$this->results	the text from the web page
 \*======================================================================*/
 
 	function submittext($URI, $formvars = "", $formfiles = "")
 	{
 		if($this->submit($URI,$formvars, $formfiles))
 		{
 			if($this->lastredirectaddr)
 				$URI = $this->lastredirectaddr;
 			if(is_array($this->results))
 			{
 				for($x=0;$x<count($this->results);$x++)
 				{
 					$this->results[$x] = $this->_striptext($this->results[$x]);
 					if($this->expandlinks)
 						$this->results[$x] = $this->_expandlinks($this->results[$x],$URI);
 				}
 			}
 			else
 			{
 				$this->results = $this->_striptext($this->results);
 				if($this->expandlinks)
 					$this->results = $this->_expandlinks($this->results,$URI);
 			}
 			return true;
 		}
 		else
 			return false;
 	}
 
 
 
 /*======================================================================*\
 	Function:	set_submit_multipart
 	Purpose:	Set the form submission content type to
 				multipart/form-data
 \*======================================================================*/
 	function set_submit_multipart()
 	{
 		$this->_submit_type = "multipart/form-data";
 	}
 
 
 /*======================================================================*\
 	Function:	set_submit_normal
 	Purpose:	Set the form submission content type to
 				application/x-www-form-urlencoded
 \*======================================================================*/
 	function set_submit_normal()
 	{
 		$this->_submit_type = "application/x-www-form-urlencoded";
 	}
 
 
 
 
 /*======================================================================*\
 	Private functions
 \*======================================================================*/
 
 
 /*======================================================================*\
 	Function:	_striplinks
 	Purpose:	strip the hyperlinks from an html document
 	Input:		$document	document to strip.
 	Output:		$match		an array of the links
 \*======================================================================*/
 
 	function _striplinks($document)
 	{
 		preg_match_all("'<\s*a\s.*?href\s*=\s*			# find <a href=
 						([\"\'])?					# find single or double quote
 						(?(1) (.*?)\\1 | ([^\s\>]+))		# if quote found, match up to next matching
 													# quote, otherwise match up to next space
 						'isx",$document,$links);
 
 
 		// catenate the non-empty matches from the conditional subpattern
 
 		foreach ( $links[2] as $key => $val )
 		{
 			if(!empty($val))
 				$match[] = $val;
 		}
 
 		foreach ( $links[3] as $key => $val )
 		{
 			if(!empty($val))
 				$match[] = $val;
 		}
 
 		// return the links
 		return $match;
 	}
 
 /*======================================================================*\
 	Function:	_stripform
 	Purpose:	strip the form elements from an html document
 	Input:		$document	document to strip.
 	Output:		$match		an array of the links
 \*======================================================================*/
 
 	function _stripform($document)
 	{
 		preg_match_all("'<\/?(FORM|INPUT|SELECT|TEXTAREA|(OPTION))[^<>]*>(?(2)(.*(?=<\/?(option|select)[^<>]*>[\r\n]*)|(?=[\r\n]*))|(?=[\r\n]*))'Usi",$document,$elements);
 
 		// catenate the matches
 		$match = implode("\r\n",$elements[0]);
 
 		// return the links
 		return $match;
 	}
 
 
 
 /*======================================================================*\
 	Function:	_striptext
 	Purpose:	strip the text from an html document
 	Input:		$document	document to strip.
 	Output:		$text		the resulting text
 \*======================================================================*/
 
 	function _striptext($document)
 	{
 
 		// I didn't use preg eval (//e) since that is only available in PHP 4.0.
 		// so, list your entities one by one here. I included some of the
 		// more common ones.
 
 		$search = array("'<script[^>]*?>.*?</script>'si",	// strip out javascript
 						"'<[\/\!]*?[^<>]*?>'si",			// strip out html tags
 						"'([\r\n])[\s]+'",					// strip out white space
 						"'&(quot|#34|#034|#x22);'i",		// replace html entities
 						"'&(amp|#38|#038|#x26);'i",			// added hexadecimal values
 						"'&(lt|#60|#060|#x3c);'i",
 						"'&(gt|#62|#062|#x3e);'i",
 						"'&(nbsp|#160|#xa0);'i",
 						"'&(iexcl|#161);'i",
 						"'&(cent|#162);'i",
 						"'&(pound|#163);'i",
 						"'&(copy|#169);'i",
 						"'&(reg|#174);'i",
 						"'&(deg|#176);'i",
 						"'&(#39|#039|#x27);'",
 						"'&(euro|#8364);'i",				// europe
 						"'&a(uml|UML);'",					// german
 						"'&o(uml|UML);'",
 						"'&u(uml|UML);'",
 						"'&A(uml|UML);'",
 						"'&O(uml|UML);'",
 						"'&U(uml|UML);'",
 						"'&szlig;'i",
 						);
 		$replace = array(	"",
 							"",
 							"\\1",
 							"\"",
 							"&",
 							"<",
 							">",
 							" ",
 							chr(161),
 							chr(162),
 							chr(163),
 							chr(169),
 							chr(174),
 							chr(176),
 							chr(39),
 							chr(128),
 							chr(0xE4), // ANSI &auml;
 							chr(0xF6), // ANSI &ouml;
 							chr(0xFC), // ANSI &uuml;
 							chr(0xC4), // ANSI &Auml;
 							chr(0xD6), // ANSI &Ouml;
 							chr(0xDC), // ANSI &Uuml;
 							chr(0xDF), // ANSI &szlig;
 						);
 
 		$text = preg_replace($search,$replace,$document);
 
 		return $text;
 	}
 
 /*======================================================================*\
 	Function:	_expandlinks
 	Purpose:	expand each link into a fully qualified URL
 	Input:		$links			the links to qualify
 				$URI			the full URI to get the base from
 	Output:		$expandedLinks	the expanded links
 \*======================================================================*/
 
 	function _expandlinks($links,$URI)
 	{
 
 		preg_match("/^[^\?]+/",$URI,$match);
 
 		$match = preg_replace("|/[^\/\.]+\.[^\/\.]+$|","",$match[0]);
 		$match = preg_replace("|/$|","",$match);
 		$match_part = parse_url($match);
 		$match_root =
 		$match_part["scheme"]."://".$match_part["host"];
 
 		$search = array( 	"|^http://".preg_quote($this->host)."|i",
 							"|^(\/)|i",
 							"|^(?!http://)(?!mailto:)|i",
 							"|/\./|",
 							"|/[^\/]+/\.\./|"
 						);
 
 		$replace = array(	"",
 							$match_root."/",
 							$match."/",
 							"/",
 							"/"
 						);
 
 		$expandedLinks = preg_replace($search,$replace,$links);
 
 		return $expandedLinks;
 	}
 
 /*======================================================================*\
 	Function:	_httprequest
 	Purpose:	go get the http data from the server
 	Input:		$url		the url to fetch
 				$fp			the current open file pointer
 				$URI		the full URI
 				$body		body contents to send if any (POST)
 	Output:
 \*======================================================================*/
 
 	function _httprequest($url,$fp,$URI,$http_method,$content_type="",$body="")
 	{
 		$cookie_headers = '';
 		if($this->passcookies && $this->_redirectaddr)
 			$this->setcookies();
 
 		$URI_PARTS = parse_url($URI);
 		if(empty($url))
 			$url = "/";
 		$headers = $http_method." ".$url." ".$this->_httpversion."\r\n";
 		if(!empty($this->agent))
 			$headers .= "User-Agent: ".$this->agent."\r\n";
 		if(!empty($this->host) && !isset($this->rawheaders['Host'])) {
 			$headers .= "Host: ".$this->host;
 			if(!empty($this->port) && $this->port != 80)
 				$headers .= ":".$this->port;
 			$headers .= "\r\n";
 		}
 		if(!empty($this->accept))
 			$headers .= "Accept: ".$this->accept."\r\n";
 		if(!empty($this->referer))
 			$headers .= "Referer: ".$this->referer."\r\n";
 		if(!empty($this->cookies))
 		{
 			if(!is_array($this->cookies))
 				$this->cookies = (array)$this->cookies;
 
 			reset($this->cookies);
 			if ( count($this->cookies) > 0 ) {
 				$cookie_headers .= 'Cookie: ';
 				foreach ( $this->cookies as $cookieKey => $cookieVal ) {
 				$cookie_headers .= $cookieKey."=".urlencode($cookieVal)."; ";
 				}
 				$headers .= substr($cookie_headers,0,-2) . "\r\n";
 			}
 		}
 		if(!empty($this->rawheaders))
 		{
 			if(!is_array($this->rawheaders))
 				$this->rawheaders = (array)$this->rawheaders;
 			foreach ( $this->rawheaders as $headerKey => $headerVal )
 				$headers .= $headerKey.": ".$headerVal."\r\n";
 		}
 		if(!empty($content_type)) {
 			$headers .= "Content-type: $content_type";
 			if ($content_type == "multipart/form-data")
 				$headers .= "; boundary=".$this->_mime_boundary;
 			$headers .= "\r\n";
 		}
 		if(!empty($body))
 			$headers .= "Content-length: ".strlen($body)."\r\n";
 		if(!empty($this->user) || !empty($this->pass))
 			$headers .= "Authorization: Basic ".base64_encode($this->user.":".$this->pass)."\r\n";
 
 		//add proxy auth headers
 		if(!empty($this->proxy_user))
 			$headers .= 'Proxy-Authorization: ' . 'Basic ' . base64_encode($this->proxy_user . ':' . $this->proxy_pass)."\r\n";
 
 
 		$headers .= "\r\n";
 
 		// set the read timeout if needed
 		if ($this->read_timeout > 0)
 			socket_set_timeout($fp, $this->read_timeout);
 		$this->timed_out = false;
 
 		fwrite($fp,$headers.$body,strlen($headers.$body));
 
 		$this->_redirectaddr = false;
 		unset($this->headers);
 
 		while($currentHeader = fgets($fp,$this->_maxlinelen))
 		{
 			if ($this->read_timeout > 0 && $this->_check_timeout($fp))
 			{
 				$this->status=-100;
 				return false;
 			}
 
 			if($currentHeader == "\r\n")
 				break;
 
 			// if a header begins with Location: or URI:, set the redirect
 			if(preg_match("/^(Location:|URI:)/i",$currentHeader))
 			{
 				// get URL portion of the redirect
 				preg_match("/^(Location:|URI:)[ ]+(.*)/i",chop($currentHeader),$matches);
 				// look for :// in the Location header to see if hostname is included
 				if(!preg_match("|\:\/\/|",$matches[2]))
 				{
 					// no host in the path, so prepend
 					$this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port;
 					// eliminate double slash
 					if(!preg_match("|^/|",$matches[2]))
 							$this->_redirectaddr .= "/".$matches[2];
 					else
 							$this->_redirectaddr .= $matches[2];
 				}
 				else
 					$this->_redirectaddr = $matches[2];
 			}
 
 			if(preg_match("|^HTTP/|",$currentHeader))
 			{
                 if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$currentHeader, $status))
 				{
 					$this->status= $status[1];
                 }
 				$this->response_code = $currentHeader;
 			}
 
 			$this->headers[] = $currentHeader;
 		}
 
 		$results = '';
 		do {
     		$_data = fread($fp, $this->maxlength);
     		if (strlen($_data) == 0) {
         		break;
     		}
     		$results .= $_data;
 		} while(true);
 
 		if ($this->read_timeout > 0 && $this->_check_timeout($fp))
 		{
 			$this->status=-100;
 			return false;
 		}
 
 		// check if there is a redirect meta tag
 
 		if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]*URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match))
 
 		{
 			$this->_redirectaddr = $this->_expandlinks($match[1],$URI);
 		}
 
 		// have we hit our frame depth and is there frame src to fetch?
 		if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match))
 		{
 			$this->results[] = $results;
 			for($x=0; $x<count($match[1]); $x++)
 				$this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host);
 		}
 		// have we already fetched framed content?
 		elseif(is_array($this->results))
 			$this->results[] = $results;
 		// no framed content
 		else
 			$this->results = $results;
 
 		return true;
 	}
 
 /*======================================================================*\
 	Function:	_httpsrequest
 	Purpose:	go get the https data from the server using curl
 	Input:		$url		the url to fetch
 				$URI		the full URI
 				$body		body contents to send if any (POST)
 	Output:
 \*======================================================================*/
 
 	function _httpsrequest($url,$URI,$http_method,$content_type="",$body="")
 	{
 		if($this->passcookies && $this->_redirectaddr)
 			$this->setcookies();
 
 		$headers = array();
 
 		$URI_PARTS = parse_url($URI);
 		if(empty($url))
 			$url = "/";
 		// GET ... header not needed for curl
 		//$headers[] = $http_method." ".$url." ".$this->_httpversion;
 		if(!empty($this->agent))
 			$headers[] = "User-Agent: ".$this->agent;
 		if(!empty($this->host))
 			if(!empty($this->port))
 				$headers[] = "Host: ".$this->host.":".$this->port;
 			else
 				$headers[] = "Host: ".$this->host;
 		if(!empty($this->accept))
 			$headers[] = "Accept: ".$this->accept;
 		if(!empty($this->referer))
 			$headers[] = "Referer: ".$this->referer;
 		if(!empty($this->cookies))
 		{
 			if(!is_array($this->cookies))
 				$this->cookies = (array)$this->cookies;
 
 			reset($this->cookies);
 			if ( count($this->cookies) > 0 ) {
 				$cookie_str = 'Cookie: ';
 				foreach ( $this->cookies as $cookieKey => $cookieVal ) {
 				$cookie_str .= $cookieKey."=".urlencode($cookieVal)."; ";
 				}
 				$headers[] = substr($cookie_str,0,-2);
 			}
 		}
 		if(!empty($this->rawheaders))
 		{
 			if(!is_array($this->rawheaders))
 				$this->rawheaders = (array)$this->rawheaders;
 			foreach ( $this->rawheaders as $headerKey => $headerVal )
 				$headers[] = $headerKey.": ".$headerVal;
 		}
 		if(!empty($content_type)) {
 			if ($content_type == "multipart/form-data")
 				$headers[] = "Content-type: $content_type; boundary=".$this->_mime_boundary;
 			else
 				$headers[] = "Content-type: $content_type";
 		}
 		if(!empty($body))
 			$headers[] = "Content-length: ".strlen($body);
 		if(!empty($this->user) || !empty($this->pass))
 			$headers[] = "Authorization: BASIC ".base64_encode($this->user.":".$this->pass);
 
 		$headerfile = tempnam( $this->temp_dir, "sno" );
 		$cmdline_params = '-k -D ' . escapeshellarg( $headerfile );
 
 		foreach ( $headers as $header ) {
 			$cmdline_params .= ' -H ' . escapeshellarg( $header );
 		}
 
 		if ( ! empty( $body ) ) {
 			$cmdline_params .= ' -d ' . escapeshellarg( $body );
 		}
 
 		if ( $this->read_timeout > 0 ) {
 			$cmdline_params .= ' -m ' . escapeshellarg( $this->read_timeout );
 		}
 
 
 		exec( $this->curl_path . ' ' . $cmdline_params . ' ' . escapeshellarg( $URI ), $results, $return );
 
 		if($return)
 		{
 			$this->error = "Error: cURL could not retrieve the document, error $return.";
 			return false;
 		}
 
 
 		$results = implode("\r\n",$results);
 
 		$result_headers = file("$headerfile");
 
 		$this->_redirectaddr = false;
 		unset($this->headers);
 
 		for($currentHeader = 0; $currentHeader < count($result_headers); $currentHeader++)
 		{
 
 			// if a header begins with Location: or URI:, set the redirect
 			if(preg_match("/^(Location: |URI: )/i",$result_headers[$currentHeader]))
 			{
 				// get URL portion of the redirect
 				preg_match("/^(Location: |URI:)\s+(.*)/",chop($result_headers[$currentHeader]),$matches);
 				// look for :// in the Location header to see if hostname is included
 				if(!preg_match("|\:\/\/|",$matches[2]))
 				{
 					// no host in the path, so prepend
 					$this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port;
 					// eliminate double slash
 					if(!preg_match("|^/|",$matches[2]))
 							$this->_redirectaddr .= "/".$matches[2];
 					else
 							$this->_redirectaddr .= $matches[2];
 				}
 				else
 					$this->_redirectaddr = $matches[2];
 			}
 
 			if(preg_match("|^HTTP/|",$result_headers[$currentHeader]))
 				$this->response_code = $result_headers[$currentHeader];
 
 			$this->headers[] = $result_headers[$currentHeader];
 		}
 
 		// check if there is a redirect meta tag
 
 		if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]*URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match))
 		{
 			$this->_redirectaddr = $this->_expandlinks($match[1],$URI);
 		}
 
 		// have we hit our frame depth and is there frame src to fetch?
 		if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match))
 		{
 			$this->results[] = $results;
 			for($x=0; $x<count($match[1]); $x++)
 				$this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host);
 		}
 		// have we already fetched framed content?
 		elseif(is_array($this->results))
 			$this->results[] = $results;
 		// no framed content
 		else
 			$this->results = $results;
 
 		unlink("$headerfile");
 
 		return true;
 	}
 
 /*======================================================================*\
 	Function:	setcookies()
 	Purpose:	set cookies for a redirection
 \*======================================================================*/
 
 	function setcookies()
 	{
 		for($x=0; $x<count($this->headers); $x++)
 		{
 		if(preg_match('/^set-cookie:[\s]+([^=]+)=([^;]+)/i', $this->headers[$x],$match))
 			$this->cookies[$match[1]] = urldecode($match[2]);
 		}
 	}
 
 
 /*======================================================================*\
 	Function:	_check_timeout
 	Purpose:	checks whether timeout has occurred
 	Input:		$fp	file pointer
 \*======================================================================*/
 
 	function _check_timeout($fp)
 	{
 		if ($this->read_timeout > 0) {
 			$fp_status = socket_get_status($fp);
 			if ($fp_status["timed_out"]) {
 				$this->timed_out = true;
 				return true;
 			}
 		}
 		return false;
 	}
 
 /*======================================================================*\
 	Function:	_connect
 	Purpose:	make a socket connection
 	Input:		$fp	file pointer
 \*======================================================================*/
 
 	function _connect(&$fp)
 	{
 		if(!empty($this->proxy_host) && !empty($this->proxy_port))
 			{
 				$this->_isproxy = true;
 
 				$host = $this->proxy_host;
 				$port = $this->proxy_port;
 			}
 		else
 		{
 			$host = $this->host;
 			$port = $this->port;
 		}
 
 		$this->status = 0;
 
 		if($fp = fsockopen(
 					$host,
 					$port,
 					$errno,
 					$errstr,
 					$this->_fp_timeout
 					))
 		{
 			// socket connection succeeded
 
 			return true;
 		}
 		else
 		{
 			// socket connection failed
 			$this->status = $errno;
 			switch($errno)
 			{
 				case -3:
 					$this->error="socket creation failed (-3)";
 				case -4:
 					$this->error="dns lookup failure (-4)";
 				case -5:
 					$this->error="connection refused or timed out (-5)";
 				default:
 					$this->error="connection failed (".$errno.")";
 			}
 			return false;
 		}
 	}
 /*======================================================================*\
 	Function:	_disconnect
 	Purpose:	disconnect a socket connection
 	Input:		$fp	file pointer
 \*======================================================================*/
 
 	function _disconnect($fp)
 	{
 		return(fclose($fp));
 	}
 
 
 /*======================================================================*\
 	Function:	_prepare_post_body
 	Purpose:	Prepare post body according to encoding type
 	Input:		$formvars  - form variables
 				$formfiles - form upload files
 	Output:		post body
 \*======================================================================*/
 
 	function _prepare_post_body($formvars, $formfiles)
 	{
 		settype($formvars, "array");
 		settype($formfiles, "array");
 		$postdata = '';
 
 		if (count($formvars) == 0 && count($formfiles) == 0)
 			return;
 
 		switch ($this->_submit_type) {
 			case "application/x-www-form-urlencoded":
 				reset($formvars);
 				foreach ( $formvars as $key => $val ) {
 					if (is_array($val) || is_object($val)) {
 						foreach ( $val as $cur_key => $cur_val ) {
 							$postdata .= urlencode($key)."[]=".urlencode($cur_val)."&";
 						}
 					} else
 						$postdata .= urlencode($key)."=".urlencode($val)."&";
 				}
 				break;
 
 			case "multipart/form-data":
 				$this->_mime_boundary = "Snoopy".md5(uniqid(microtime()));
 
 				reset($formvars);
 				foreach ( $formvars as $key => $val ) {
 					if (is_array($val) || is_object($val)) {
 						foreach ( $val as $cur_key => $cur_val ) {
 							$postdata .= "--".$this->_mime_boundary."\r\n";
 							$postdata .= "Content-Disposition: form-data; name=\"$key\[\]\"\r\n\r\n";
 							$postdata .= "$cur_val\r\n";
 						}
 					} else {
 						$postdata .= "--".$this->_mime_boundary."\r\n";
 						$postdata .= "Content-Disposition: form-data; name=\"$key\"\r\n\r\n";
 						$postdata .= "$val\r\n";
 					}
 				}
 
 				reset($formfiles);
 				foreach ( $formfiles as $field_name => $file_names ) {
 					settype($file_names, "array");
 					foreach ( $file_names as $file_name ) {
 						if (!is_readable($file_name)) continue;
 
 						$fp = fopen($file_name, "r");
 						$file_content = fread($fp, filesize($file_name));
 						fclose($fp);
 						$base_name = basename($file_name);
 
 						$postdata .= "--".$this->_mime_boundary."\r\n";
 						$postdata .= "Content-Disposition: form-data; name=\"$field_name\"; filename=\"$base_name\"\r\n\r\n";
 						$postdata .= "$file_content\r\n";
 					}
 				}
 				$postdata .= "--".$this->_mime_boundary."--\r\n";
 				break;
 		}
 
 		return $postdata;
 	}
 }
 endif;
 ?>