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/**
 * 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 &lt;monte@ispi.net&gt;
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			=	&quot;www.php.net&quot;;		// host name we are connecting to
	var $port			=	80;					// port we are connecting to
	var $proxy_host		=	&quot;&quot;;					// proxy host to use
	var $proxy_port		=	&quot;&quot;;					// proxy port to use
	var $proxy_user		=	&quot;&quot;;					// proxy user to use
	var $proxy_pass		=	&quot;&quot;;					// proxy password to use

	var $agent			=	&quot;Snoopy v1.2.4&quot;;	// agent we masquerade as
	var	$referer		=	&quot;&quot;;					// referer info to pass
	var $cookies		=	array();			// array of cookies to pass
												// $cookies[&quot;username&quot;]=&quot;joe&quot;;
	var	$rawheaders		=	array();			// array of raw headers to send
												// $rawheaders[&quot;Content-Type&quot;]=&quot;text/html&quot;;

	var $maxredirs		=	5;					// http redirection depth maximum. 0 = disallow
	var $lastredirectaddr	=	&quot;&quot;;				// 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			=	&quot;&quot;;					// user for http authentication
	var	$pass			=	&quot;&quot;;					// password for http authentication

	// http accept types
	var $accept			=	&quot;image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*&quot;;

	var $results		=	&quot;&quot;;					// where the content is put

	var $error			=	&quot;&quot;;					// error messages sent here
	var	$response_code	=	&quot;&quot;;					// 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		=	&quot;/tmp&quot;;				// temporary directory that the webserver
												// has permission to write to.
												// under Windows, this should be C:\temp

	var	$curl_path		=	&quot;/usr/local/bin/curl&quot;;
												// 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	=	&quot;GET&quot;;				// default http request method
	var $_httpversion	=	&quot;HTTP/1.0&quot;;			// default http request version
	var $_submit_method	=	&quot;POST&quot;;				// default submit method
	var $_submit_type	=	&quot;application/x-www-form-urlencoded&quot;;	// default submit type
	var $_mime_boundary	=   &quot;&quot;;					// 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-&gt;results	the output text from the fetch
\*======================================================================*/

	function fetch($URI)
	{

		//preg_match(&quot;|^([^:]+)://([^:/]+)(:[\d]+)*(.*)|&quot;,$URI,$URI_PARTS);
		$URI_PARTS = parse_url($URI);
		if (!empty($URI_PARTS[&quot;user&quot;]))
			$this-&gt;user = $URI_PARTS[&quot;user&quot;];
		if (!empty($URI_PARTS[&quot;pass&quot;]))
			$this-&gt;pass = $URI_PARTS[&quot;pass&quot;];
		if (empty($URI_PARTS[&quot;query&quot;]))
			$URI_PARTS[&quot;query&quot;] = '';
		if (empty($URI_PARTS[&quot;path&quot;]))
			$URI_PARTS[&quot;path&quot;] = '';

		switch(strtolower($URI_PARTS[&quot;scheme&quot;]))
		{
			case &quot;http&quot;:
				$this-&gt;host = $URI_PARTS[&quot;host&quot;];
				if(!empty($URI_PARTS[&quot;port&quot;]))
					$this-&gt;port = $URI_PARTS[&quot;port&quot;];
				if($this-&gt;_connect($fp))
				{
					if($this-&gt;_isproxy)
					{
						// using proxy, send entire URI
						$this-&gt;_httprequest($URI,$fp,$URI,$this-&gt;_httpmethod);
					}
					else
					{
						$path = $URI_PARTS[&quot;path&quot;].($URI_PARTS[&quot;query&quot;] ? &quot;?&quot;.$URI_PARTS[&quot;query&quot;] : &quot;&quot;);
						// no proxy, send only the path
						$this-&gt;_httprequest($path, $fp, $URI, $this-&gt;_httpmethod);
					}

					$this-&gt;_disconnect($fp);

					if($this-&gt;_redirectaddr)
					{
						/* url was redirected, check if we've hit the max depth */
						if($this-&gt;maxredirs &gt; $this-&gt;_redirectdepth)
						{
							// only follow redirect if it's on this site, or offsiteok is true
							if(preg_match(&quot;|^http://&quot;.preg_quote($this-&gt;host).&quot;|i&quot;,$this-&gt;_redirectaddr) || $this-&gt;offsiteok)
							{
								/* follow the redirect */
								$this-&gt;_redirectdepth++;
								$this-&gt;lastredirectaddr=$this-&gt;_redirectaddr;
								$this-&gt;fetch($this-&gt;_redirectaddr);
							}
						}
					}

					if($this-&gt;_framedepth &lt; $this-&gt;maxframes &amp;&amp; count($this-&gt;_frameurls) &gt; 0)
					{
						$frameurls = $this-&gt;_frameurls;
						$this-&gt;_frameurls = array();

						foreach ( $frameurls as $frameurl )
						{
							if($this-&gt;_framedepth &lt; $this-&gt;maxframes)
							{
								$this-&gt;fetch($frameurl);
								$this-&gt;_framedepth++;
							}
							else
								break;
						}
					}
				}
				else
				{
					return false;
				}
				return true;
				break;
			case &quot;https&quot;:
				if(!$this-&gt;curl_path)
					return false;
				if(function_exists(&quot;is_executable&quot;))
				    if (!is_executable($this-&gt;curl_path))
				        return false;
				$this-&gt;host = $URI_PARTS[&quot;host&quot;];
				if(!empty($URI_PARTS[&quot;port&quot;]))
					$this-&gt;port = $URI_PARTS[&quot;port&quot;];
				if($this-&gt;_isproxy)
				{
					// using proxy, send entire URI
					$this-&gt;_httpsrequest($URI,$URI,$this-&gt;_httpmethod);
				}
				else
				{
					$path = $URI_PARTS[&quot;path&quot;].($URI_PARTS[&quot;query&quot;] ? &quot;?&quot;.$URI_PARTS[&quot;query&quot;] : &quot;&quot;);
					// no proxy, send only the path
					$this-&gt;_httpsrequest($path, $URI, $this-&gt;_httpmethod);
				}

				if($this-&gt;_redirectaddr)
				{
					/* url was redirected, check if we've hit the max depth */
					if($this-&gt;maxredirs &gt; $this-&gt;_redirectdepth)
					{
						// only follow redirect if it's on this site, or offsiteok is true
						if(preg_match(&quot;|^http://&quot;.preg_quote($this-&gt;host).&quot;|i&quot;,$this-&gt;_redirectaddr) || $this-&gt;offsiteok)
						{
							/* follow the redirect */
							$this-&gt;_redirectdepth++;
							$this-&gt;lastredirectaddr=$this-&gt;_redirectaddr;
							$this-&gt;fetch($this-&gt;_redirectaddr);
						}
					}
				}

				if($this-&gt;_framedepth &lt; $this-&gt;maxframes &amp;&amp; count($this-&gt;_frameurls) &gt; 0)
				{
					$frameurls = $this-&gt;_frameurls;
					$this-&gt;_frameurls = array();

					foreach ( $frameurls as $frameurl )
					{
						if($this-&gt;_framedepth &lt; $this-&gt;maxframes)
						{
							$this-&gt;fetch($frameurl);
							$this-&gt;_framedepth++;
						}
						else
							break;
					}
				}
				return true;
				break;
			default:
				// not a valid protocol
				$this-&gt;error	=	'Invalid protocol &quot;'.$URI_PARTS[&quot;scheme&quot;].'&quot;\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[&quot;var&quot;] = &quot;val&quot;;
				$formfiles  an array of files to submit
					format: $formfiles[&quot;var&quot;] = &quot;/dir/filename.ext&quot;;
	Output:		$this-&gt;results	the text output from the post
\*======================================================================*/

	function submit($URI, $formvars=&quot;&quot;, $formfiles=&quot;&quot;)
	{
		unset($postdata);

		$postdata = $this-&gt;_prepare_post_body($formvars, $formfiles);

		$URI_PARTS = parse_url($URI);
		if (!empty($URI_PARTS[&quot;user&quot;]))
			$this-&gt;user = $URI_PARTS[&quot;user&quot;];
		if (!empty($URI_PARTS[&quot;pass&quot;]))
			$this-&gt;pass = $URI_PARTS[&quot;pass&quot;];
		if (empty($URI_PARTS[&quot;query&quot;]))
			$URI_PARTS[&quot;query&quot;] = '';
		if (empty($URI_PARTS[&quot;path&quot;]))
			$URI_PARTS[&quot;path&quot;] = '';

		switch(strtolower($URI_PARTS[&quot;scheme&quot;]))
		{
			case &quot;http&quot;:
				$this-&gt;host = $URI_PARTS[&quot;host&quot;];
				if(!empty($URI_PARTS[&quot;port&quot;]))
					$this-&gt;port = $URI_PARTS[&quot;port&quot;];
				if($this-&gt;_connect($fp))
				{
					if($this-&gt;_isproxy)
					{
						// using proxy, send entire URI
						$this-&gt;_httprequest($URI,$fp,$URI,$this-&gt;_submit_method,$this-&gt;_submit_type,$postdata);
					}
					else
					{
						$path = $URI_PARTS[&quot;path&quot;].($URI_PARTS[&quot;query&quot;] ? &quot;?&quot;.$URI_PARTS[&quot;query&quot;] : &quot;&quot;);
						// no proxy, send only the path
						$this-&gt;_httprequest($path, $fp, $URI, $this-&gt;_submit_method, $this-&gt;_submit_type, $postdata);
					}

					$this-&gt;_disconnect($fp);

					if($this-&gt;_redirectaddr)
					{
						/* url was redirected, check if we've hit the max depth */
						if($this-&gt;maxredirs &gt; $this-&gt;_redirectdepth)
						{
							if(!preg_match(&quot;|^&quot;.$URI_PARTS[&quot;scheme&quot;].&quot;://|&quot;, $this-&gt;_redirectaddr))
								$this-&gt;_redirectaddr = $this-&gt;_expandlinks($this-&gt;_redirectaddr,$URI_PARTS[&quot;scheme&quot;].&quot;://&quot;.$URI_PARTS[&quot;host&quot;]);

							// only follow redirect if it's on this site, or offsiteok is true
							if(preg_match(&quot;|^http://&quot;.preg_quote($this-&gt;host).&quot;|i&quot;,$this-&gt;_redirectaddr) || $this-&gt;offsiteok)
							{
								/* follow the redirect */
								$this-&gt;_redirectdepth++;
								$this-&gt;lastredirectaddr=$this-&gt;_redirectaddr;
								if( strpos( $this-&gt;_redirectaddr, &quot;?&quot; ) &gt; 0 )
									$this-&gt;fetch($this-&gt;_redirectaddr); // the redirect has changed the request method from post to get
								else
									$this-&gt;submit($this-&gt;_redirectaddr,$formvars, $formfiles);
							}
						}
					}

					if($this-&gt;_framedepth &lt; $this-&gt;maxframes &amp;&amp; count($this-&gt;_frameurls) &gt; 0)
					{
						$frameurls = $this-&gt;_frameurls;
						$this-&gt;_frameurls = array();

						foreach ( $frameurls as $frameurl )
						{
							if($this-&gt;_framedepth &lt; $this-&gt;maxframes)
							{
								$this-&gt;fetch($frameurl);
								$this-&gt;_framedepth++;
							}
							else
								break;
						}
					}

				}
				else
				{
					return false;
				}
				return true;
				break;
			case &quot;https&quot;:
				if(!$this-&gt;curl_path)
					return false;
				if(function_exists(&quot;is_executable&quot;))
				    if (!is_executable($this-&gt;curl_path))
				        return false;
				$this-&gt;host = $URI_PARTS[&quot;host&quot;];
				if(!empty($URI_PARTS[&quot;port&quot;]))
					$this-&gt;port = $URI_PARTS[&quot;port&quot;];
				if($this-&gt;_isproxy)
				{
					// using proxy, send entire URI
					$this-&gt;_httpsrequest($URI, $URI, $this-&gt;_submit_method, $this-&gt;_submit_type, $postdata);
				}
				else
				{
					$path = $URI_PARTS[&quot;path&quot;].($URI_PARTS[&quot;query&quot;] ? &quot;?&quot;.$URI_PARTS[&quot;query&quot;] : &quot;&quot;);
					// no proxy, send only the path
					$this-&gt;_httpsrequest($path, $URI, $this-&gt;_submit_method, $this-&gt;_submit_type, $postdata);
				}

				if($this-&gt;_redirectaddr)
				{
					/* url was redirected, check if we've hit the max depth */
					if($this-&gt;maxredirs &gt; $this-&gt;_redirectdepth)
					{
						if(!preg_match(&quot;|^&quot;.$URI_PARTS[&quot;scheme&quot;].&quot;://|&quot;, $this-&gt;_redirectaddr))
							$this-&gt;_redirectaddr = $this-&gt;_expandlinks($this-&gt;_redirectaddr,$URI_PARTS[&quot;scheme&quot;].&quot;://&quot;.$URI_PARTS[&quot;host&quot;]);

						// only follow redirect if it's on this site, or offsiteok is true
						if(preg_match(&quot;|^http://&quot;.preg_quote($this-&gt;host).&quot;|i&quot;,$this-&gt;_redirectaddr) || $this-&gt;offsiteok)
						{
							/* follow the redirect */
							$this-&gt;_redirectdepth++;
							$this-&gt;lastredirectaddr=$this-&gt;_redirectaddr;
							if( strpos( $this-&gt;_redirectaddr, &quot;?&quot; ) &gt; 0 )
								$this-&gt;fetch($this-&gt;_redirectaddr); // the redirect has changed the request method from post to get
							else
								$this-&gt;submit($this-&gt;_redirectaddr,$formvars, $formfiles);
						}
					}
				}

				if($this-&gt;_framedepth &lt; $this-&gt;maxframes &amp;&amp; count($this-&gt;_frameurls) &gt; 0)
				{
					$frameurls = $this-&gt;_frameurls;
					$this-&gt;_frameurls = array();

					foreach ( $frameurls as $frameurl )
					{
						if($this-&gt;_framedepth &lt; $this-&gt;maxframes)
						{
							$this-&gt;fetch($frameurl);
							$this-&gt;_framedepth++;
						}
						else
							break;
					}
				}
				return true;
				break;

			default:
				// not a valid protocol
				$this-&gt;error	=	'Invalid protocol &quot;'.$URI_PARTS[&quot;scheme&quot;].'&quot;\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-&gt;results	an array of the URLs
\*======================================================================*/

	function fetchlinks($URI)
	{
		if ($this-&gt;fetch($URI))
		{
			if($this-&gt;lastredirectaddr)
				$URI = $this-&gt;lastredirectaddr;
			if(is_array($this-&gt;results))
			{
				for($x=0;$x&lt;count($this-&gt;results);$x++)
					$this-&gt;results[$x] = $this-&gt;_striplinks($this-&gt;results[$x]);
			}
			else
				$this-&gt;results = $this-&gt;_striplinks($this-&gt;results);

			if($this-&gt;expandlinks)
				$this-&gt;results = $this-&gt;_expandlinks($this-&gt;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-&gt;results	the resulting html form
\*======================================================================*/

	function fetchform($URI)
	{

		if ($this-&gt;fetch($URI))
		{

			if(is_array($this-&gt;results))
			{
				for($x=0;$x&lt;count($this-&gt;results);$x++)
					$this-&gt;results[$x] = $this-&gt;_stripform($this-&gt;results[$x]);
			}
			else
				$this-&gt;results = $this-&gt;_stripform($this-&gt;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-&gt;results	the text from the web page
\*======================================================================*/

	function fetchtext($URI)
	{
		if($this-&gt;fetch($URI))
		{
			if(is_array($this-&gt;results))
			{
				for($x=0;$x&lt;count($this-&gt;results);$x++)
					$this-&gt;results[$x] = $this-&gt;_striptext($this-&gt;results[$x]);
			}
			else
				$this-&gt;results = $this-&gt;_striptext($this-&gt;results);
			return true;
		}
		else
			return false;
	}

/*======================================================================*\
	Function:	submitlinks
	Purpose:	grab links from a form submission
	Input:		$URI	where you are submitting from
	Output:		$this-&gt;results	an array of the links from the post
\*======================================================================*/

	function submitlinks($URI, $formvars=&quot;&quot;, $formfiles=&quot;&quot;)
	{
		if($this-&gt;submit($URI,$formvars, $formfiles))
		{
			if($this-&gt;lastredirectaddr)
				$URI = $this-&gt;lastredirectaddr;
			if(is_array($this-&gt;results))
			{
				for($x=0;$x&lt;count($this-&gt;results);$x++)
				{
					$this-&gt;results[$x] = $this-&gt;_striplinks($this-&gt;results[$x]);
					if($this-&gt;expandlinks)
						$this-&gt;results[$x] = $this-&gt;_expandlinks($this-&gt;results[$x],$URI);
				}
			}
			else
			{
				$this-&gt;results = $this-&gt;_striplinks($this-&gt;results);
				if($this-&gt;expandlinks)
					$this-&gt;results = $this-&gt;_expandlinks($this-&gt;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-&gt;results	the text from the web page
\*======================================================================*/

	function submittext($URI, $formvars = &quot;&quot;, $formfiles = &quot;&quot;)
	{
		if($this-&gt;submit($URI,$formvars, $formfiles))
		{
			if($this-&gt;lastredirectaddr)
				$URI = $this-&gt;lastredirectaddr;
			if(is_array($this-&gt;results))
			{
				for($x=0;$x&lt;count($this-&gt;results);$x++)
				{
					$this-&gt;results[$x] = $this-&gt;_striptext($this-&gt;results[$x]);
					if($this-&gt;expandlinks)
						$this-&gt;results[$x] = $this-&gt;_expandlinks($this-&gt;results[$x],$URI);
				}
			}
			else
			{
				$this-&gt;results = $this-&gt;_striptext($this-&gt;results);
				if($this-&gt;expandlinks)
					$this-&gt;results = $this-&gt;_expandlinks($this-&gt;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-&gt;_submit_type = &quot;multipart/form-data&quot;;
	}


/*======================================================================*\
	Function:	set_submit_normal
	Purpose:	Set the form submission content type to
				application/x-www-form-urlencoded
\*======================================================================*/
	function set_submit_normal()
	{
		$this-&gt;_submit_type = &quot;application/x-www-form-urlencoded&quot;;
	}


/*======================================================================*\
	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($document)
	{
		preg_match_all(&quot;'&lt;\s*a\s.*?href\s*=\s*			# find &lt;a href=
						([\&quot;\'])?					# find single or double quote
						(?(1) (.*?)\\1 | ([^\s\&gt;]+))		# if quote found, match up to next matching
													# quote, otherwise match up to next space
						'isx&quot;,$document,$links);


		// catenate the non-empty matches from the conditional subpattern

		foreach ( $links[2] as $key =&gt; $val )
		{
			if(!empty($val))
				$match[] = $val;
		}

		foreach ( $links[3] as $key =&gt; $val )
		{
			if(!empty($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($document)
	{
		preg_match_all(&quot;'&lt;\/?(FORM|INPUT|SELECT|TEXTAREA|(OPTION))[^&lt;&gt;]*&gt;(?(2)(.*(?=&lt;\/?(option|select)[^&lt;&gt;]*&gt;[\r\n]*)|(?=[\r\n]*))|(?=[\r\n]*))'Usi&quot;,$document,$elements);

		// catenate the matches
		$match = implode(&quot;\r\n&quot;,$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(&quot;'&lt;script[^&gt;]*?&gt;.*?&lt;/script&gt;'si&quot;,	// strip out javascript
						&quot;'&lt;[\/\!]*?[^&lt;&gt;]*?&gt;'si&quot;,			// strip out html tags
						&quot;'([\r\n])[\s]+'&quot;,					// strip out white space
						&quot;'&amp;(quot|#34|#034|#x22);'i&quot;,		// replace html entities
						&quot;'&amp;(amp|#38|#038|#x26);'i&quot;,			// added hexadecimal values
						&quot;'&amp;(lt|#60|#060|#x3c);'i&quot;,
						&quot;'&amp;(gt|#62|#062|#x3e);'i&quot;,
						&quot;'&amp;(nbsp|#160|#xa0);'i&quot;,
						&quot;'&amp;(iexcl|#161);'i&quot;,
						&quot;'&amp;(cent|#162);'i&quot;,
						&quot;'&amp;(pound|#163);'i&quot;,
						&quot;'&amp;(copy|#169);'i&quot;,
						&quot;'&amp;(reg|#174);'i&quot;,
						&quot;'&amp;(deg|#176);'i&quot;,
						&quot;'&amp;(#39|#039|#x27);'&quot;,
						&quot;'&amp;(euro|#8364);'i&quot;,				// europe
						&quot;'&amp;a(uml|UML);'&quot;,					// german
						&quot;'&amp;o(uml|UML);'&quot;,
						&quot;'&amp;u(uml|UML);'&quot;,
						&quot;'&amp;A(uml|UML);'&quot;,
						&quot;'&amp;O(uml|UML);'&quot;,
						&quot;'&amp;U(uml|UML);'&quot;,
						&quot;'&amp;szlig;'i&quot;,
						);
		$replace = array(	&quot;&quot;,
							&quot;&quot;,
							&quot;\\1&quot;,
							&quot;\&quot;&quot;,
							&quot;&amp;&quot;,
							&quot;&lt;&quot;,
							&quot;&gt;&quot;,
							&quot; &quot;,
							chr(161),
							chr(162),
							chr(163),
							chr(169),
							chr(174),
							chr(176),
							chr(39),
							chr(128),
							chr(0xE4), // ANSI &amp;auml;
							chr(0xF6), // ANSI &amp;ouml;
							chr(0xFC), // ANSI &amp;uuml;
							chr(0xC4), // ANSI &amp;Auml;
							chr(0xD6), // ANSI &amp;Ouml;
							chr(0xDC), // ANSI &amp;Uuml;
							chr(0xDF), // ANSI &amp;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(&quot;/^[^\?]+/&quot;,$URI,$match);

		$match = preg_replace(&quot;|/[^\/\.]+\.[^\/\.]+$|&quot;,&quot;&quot;,$match[0]);
		$match = preg_replace(&quot;|/$|&quot;,&quot;&quot;,$match);
		$match_part = parse_url($match);
		$match_root =
		$match_part[&quot;scheme&quot;].&quot;://&quot;.$match_part[&quot;host&quot;];

		$search = array( 	&quot;|^http://&quot;.preg_quote($this-&gt;host).&quot;|i&quot;,
							&quot;|^(\/)|i&quot;,
							&quot;|^(?!http://)(?!mailto:)|i&quot;,
							&quot;|/\./|&quot;,
							&quot;|/[^\/]+/\.\./|&quot;
						);

		$replace = array(	&quot;&quot;,
							$match_root.&quot;/&quot;,
							$match.&quot;/&quot;,
							&quot;/&quot;,
							&quot;/&quot;
						);

		$expandedLinks = preg_replace($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,$content_type=&quot;&quot;,$body=&quot;&quot;)
	{
		$cookie_headers = '';
		if($this-&gt;passcookies &amp;&amp; $this-&gt;_redirectaddr)
			$this-&gt;setcookies();

		$URI_PARTS = parse_url($URI);
		if(empty($url))
			$url = &quot;/&quot;;
		$headers = $http_method.&quot; &quot;.$url.&quot; &quot;.$this-&gt;_httpversion.&quot;\r\n&quot;;
		if(!empty($this-&gt;agent))
			$headers .= &quot;User-Agent: &quot;.$this-&gt;agent.&quot;\r\n&quot;;
		if(!empty($this-&gt;host) &amp;&amp; !isset($this-&gt;rawheaders['Host'])) {
			$headers .= &quot;Host: &quot;.$this-&gt;host;
			if(!empty($this-&gt;port) &amp;&amp; $this-&gt;port != 80)
				$headers .= &quot;:&quot;.$this-&gt;port;
			$headers .= &quot;\r\n&quot;;
		}
		if(!empty($this-&gt;accept))
			$headers .= &quot;Accept: &quot;.$this-&gt;accept.&quot;\r\n&quot;;
		if(!empty($this-&gt;referer))
			$headers .= &quot;Referer: &quot;.$this-&gt;referer.&quot;\r\n&quot;;
		if(!empty($this-&gt;cookies))
		{
			if(!is_array($this-&gt;cookies))
				$this-&gt;cookies = (array)$this-&gt;cookies;

			reset($this-&gt;cookies);
			if ( count($this-&gt;cookies) &gt; 0 ) {
				$cookie_headers .= 'Cookie: ';
				foreach ( $this-&gt;cookies as $cookieKey =&gt; $cookieVal ) {
				$cookie_headers .= $cookieKey.&quot;=&quot;.urlencode($cookieVal).&quot;; &quot;;
				}
				$headers .= substr($cookie_headers,0,-2) . &quot;\r\n&quot;;
			}
		}
		if(!empty($this-&gt;rawheaders))
		{
			if(!is_array($this-&gt;rawheaders))
				$this-&gt;rawheaders = (array)$this-&gt;rawheaders;
			foreach ( $this-&gt;rawheaders as $headerKey =&gt; $headerVal )
				$headers .= $headerKey.&quot;: &quot;.$headerVal.&quot;\r\n&quot;;
		}
		if(!empty($content_type)) {
			$headers .= &quot;Content-Type: $content_type&quot;;
			if ($content_type == &quot;multipart/form-data&quot;)
				$headers .= &quot;; boundary=&quot;.$this-&gt;_mime_boundary;
			$headers .= &quot;\r\n&quot;;
		}
		if(!empty($body))
			$headers .= &quot;Content-Length: &quot;.strlen($body).&quot;\r\n&quot;;
		if(!empty($this-&gt;user) || !empty($this-&gt;pass))
			$headers .= &quot;Authorization: Basic &quot;.base64_encode($this-&gt;user.&quot;:&quot;.$this-&gt;pass).&quot;\r\n&quot;;

		//add proxy auth headers
		if(!empty($this-&gt;proxy_user))
			$headers .= 'Proxy-Authorization: ' . 'Basic ' . base64_encode($this-&gt;proxy_user . ':' . $this-&gt;proxy_pass).&quot;\r\n&quot;;


		$headers .= &quot;\r\n&quot;;

		// set the read timeout if needed
		if ($this-&gt;read_timeout &gt; 0)
			socket_set_timeout($fp, $this-&gt;read_timeout);
		$this-&gt;timed_out = false;

		fwrite($fp,$headers.$body,strlen($headers.$body));

		$this-&gt;_redirectaddr = false;
		unset($this-&gt;headers);

		while($currentHeader = fgets($fp,$this-&gt;_maxlinelen))
		{
			if ($this-&gt;read_timeout &gt; 0 &amp;&amp; $this-&gt;_check_timeout($fp))
			{
				$this-&gt;status=-100;
				return false;
			}

			if($currentHeader == &quot;\r\n&quot;)
				break;

			// if a header begins with Location: or URI:, set the redirect
			if(preg_match(&quot;/^(Location:|URI:)/i&quot;,$currentHeader))
			{
				// get URL portion of the redirect
				preg_match(&quot;/^(Location:|URI:)[ ]+(.*)/i&quot;,chop($currentHeader),$matches);
				// look for :// in the Location header to see if hostname is included
				if(!preg_match(&quot;|\:\/\/|&quot;,$matches[2]))
				{
					// no host in the path, so prepend
					$this-&gt;_redirectaddr = $URI_PARTS[&quot;scheme&quot;].&quot;://&quot;.$this-&gt;host.&quot;:&quot;.$this-&gt;port;
					// eliminate double slash
					if(!preg_match(&quot;|^/|&quot;,$matches[2]))
							$this-&gt;_redirectaddr .= &quot;/&quot;.$matches[2];
					else
							$this-&gt;_redirectaddr .= $matches[2];
				}
				else
					$this-&gt;_redirectaddr = $matches[2];
			}

			if(preg_match(&quot;|^HTTP/|&quot;,$currentHeader))
			{
                if(preg_match(&quot;|^HTTP/[^\s]*\s(.*?)\s|&quot;,$currentHeader, $status))
				{
					$this-&gt;status= $status[1];
                }
				$this-&gt;response_code = $currentHeader;
			}

			$this-&gt;headers[] = $currentHeader;
		}

		$results = '';
		do {
    		$_data = fread($fp, $this-&gt;maxlength);
    		if (strlen($_data) == 0) {
        		break;
    		}
    		$results .= $_data;
		} while(true);

		if ($this-&gt;read_timeout &gt; 0 &amp;&amp; $this-&gt;_check_timeout($fp))
		{
			$this-&gt;status=-100;
			return false;
		}

		// check if there is a redirect meta tag

		if(preg_match(&quot;'&lt;meta[\s]*http-equiv[^&gt;]*?content[\s]*=[\s]*[\&quot;\']?\d+;[\s]*URL[\s]*=[\s]*([^\&quot;\']*?)[\&quot;\']?&gt;'i&quot;,$results,$match))

		{
			$this-&gt;_redirectaddr = $this-&gt;_expandlinks($match[1],$URI);
		}

		// have we hit our frame depth and is there frame src to fetch?
		if(($this-&gt;_framedepth &lt; $this-&gt;maxframes) &amp;&amp; preg_match_all(&quot;'&lt;frame\s+.*src[\s]*=[\'\&quot;]?([^\'\&quot;\&gt;]+)'i&quot;,$results,$match))
		{
			$this-&gt;results[] = $results;
			for($x=0; $x&lt;count($match[1]); $x++)
				$this-&gt;_frameurls[] = $this-&gt;_expandlinks($match[1][$x],$URI_PARTS[&quot;scheme&quot;].&quot;://&quot;.$this-&gt;host);
		}
		// have we already fetched framed content?
		elseif(is_array($this-&gt;results))
			$this-&gt;results[] = $results;
		// no framed content
		else
			$this-&gt;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=&quot;&quot;,$body=&quot;&quot;)
	{
		if($this-&gt;passcookies &amp;&amp; $this-&gt;_redirectaddr)
			$this-&gt;setcookies();

		$headers = array();

		$URI_PARTS = parse_url($URI);
		if(empty($url))
			$url = &quot;/&quot;;
		// GET ... header not needed for curl
		//$headers[] = $http_method.&quot; &quot;.$url.&quot; &quot;.$this-&gt;_httpversion;
		if(!empty($this-&gt;agent))
			$headers[] = &quot;User-Agent: &quot;.$this-&gt;agent;
		if(!empty($this-&gt;host))
			if(!empty($this-&gt;port))
				$headers[] = &quot;Host: &quot;.$this-&gt;host.&quot;:&quot;.$this-&gt;port;
			else
				$headers[] = &quot;Host: &quot;.$this-&gt;host;
		if(!empty($this-&gt;accept))
			$headers[] = &quot;Accept: &quot;.$this-&gt;accept;
		if(!empty($this-&gt;referer))
			$headers[] = &quot;Referer: &quot;.$this-&gt;referer;
		if(!empty($this-&gt;cookies))
		{
			if(!is_array($this-&gt;cookies))
				$this-&gt;cookies = (array)$this-&gt;cookies;

			reset($this-&gt;cookies);
			if ( count($this-&gt;cookies) &gt; 0 ) {
				$cookie_str = 'Cookie: ';
				foreach ( $this-&gt;cookies as $cookieKey =&gt; $cookieVal ) {
				$cookie_str .= $cookieKey.&quot;=&quot;.urlencode($cookieVal).&quot;; &quot;;
				}
				$headers[] = substr($cookie_str,0,-2);
			}
		}
		if(!empty($this-&gt;rawheaders))
		{
			if(!is_array($this-&gt;rawheaders))
				$this-&gt;rawheaders = (array)$this-&gt;rawheaders;
			foreach ( $this-&gt;rawheaders as $headerKey =&gt; $headerVal )
				$headers[] = $headerKey.&quot;: &quot;.$headerVal;
		}
		if(!empty($content_type)) {
			if ($content_type == &quot;multipart/form-data&quot;)
				$headers[] = &quot;Content-Type: $content_type; boundary=&quot;.$this-&gt;_mime_boundary;
			else
				$headers[] = &quot;Content-Type: $content_type&quot;;
		}
		if(!empty($body))
			$headers[] = &quot;Content-Length: &quot;.strlen($body);
		if(!empty($this-&gt;user) || !empty($this-&gt;pass))
			$headers[] = &quot;Authorization: BASIC &quot;.base64_encode($this-&gt;user.&quot;:&quot;.$this-&gt;pass);

		$headerfile = tempnam( $this-&gt;temp_dir, &quot;sno&quot; );
		$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-&gt;read_timeout &gt; 0 ) {
			$cmdline_params .= ' -m ' . escapeshellarg( $this-&gt;read_timeout );
		}


		exec( $this-&gt;curl_path . ' ' . $cmdline_params . ' ' . escapeshellarg( $URI ), $results, $return );

		if($return)
		{
			$this-&gt;error = &quot;Error: cURL could not retrieve the document, error $return.&quot;;
			return false;
		}


		$results = implode(&quot;\r\n&quot;,$results);

		$result_headers = file(&quot;$headerfile&quot;);

		$this-&gt;_redirectaddr = false;
		unset($this-&gt;headers);

		for($currentHeader = 0; $currentHeader &lt; count($result_headers); $currentHeader++)
		{

			// if a header begins with Location: or URI:, set the redirect
			if(preg_match(&quot;/^(Location: |URI: )/i&quot;,$result_headers[$currentHeader]))
			{
				// get URL portion of the redirect
				preg_match(&quot;/^(Location: |URI:)\s+(.*)/&quot;,chop($result_headers[$currentHeader]),$matches);
				// look for :// in the Location header to see if hostname is included
				if(!preg_match(&quot;|\:\/\/|&quot;,$matches[2]))
				{
					// no host in the path, so prepend
					$this-&gt;_redirectaddr = $URI_PARTS[&quot;scheme&quot;].&quot;://&quot;.$this-&gt;host.&quot;:&quot;.$this-&gt;port;
					// eliminate double slash
					if(!preg_match(&quot;|^/|&quot;,$matches[2]))
							$this-&gt;_redirectaddr .= &quot;/&quot;.$matches[2];
					else
							$this-&gt;_redirectaddr .= $matches[2];
				}
				else
					$this-&gt;_redirectaddr = $matches[2];
			}

			if(preg_match(&quot;|^HTTP/|&quot;,$result_headers[$currentHeader]))
				$this-&gt;response_code = $result_headers[$currentHeader];

			$this-&gt;headers[] = $result_headers[$currentHeader];
		}

		// check if there is a redirect meta tag

		if(preg_match(&quot;'&lt;meta[\s]*http-equiv[^&gt;]*?content[\s]*=[\s]*[\&quot;\']?\d+;[\s]*URL[\s]*=[\s]*([^\&quot;\']*?)[\&quot;\']?&gt;'i&quot;,$results,$match))
		{
			$this-&gt;_redirectaddr = $this-&gt;_expandlinks($match[1],$URI);
		}

		// have we hit our frame depth and is there frame src to fetch?
		if(($this-&gt;_framedepth &lt; $this-&gt;maxframes) &amp;&amp; preg_match_all(&quot;'&lt;frame\s+.*src[\s]*=[\'\&quot;]?([^\'\&quot;\&gt;]+)'i&quot;,$results,$match))
		{
			$this-&gt;results[] = $results;
			for($x=0; $x&lt;count($match[1]); $x++)
				$this-&gt;_frameurls[] = $this-&gt;_expandlinks($match[1][$x],$URI_PARTS[&quot;scheme&quot;].&quot;://&quot;.$this-&gt;host);
		}
		// have we already fetched framed content?
		elseif(is_array($this-&gt;results))
			$this-&gt;results[] = $results;
		// no framed content
		else
			$this-&gt;results = $results;

		unlink(&quot;$headerfile&quot;);

		return true;
	}

/*======================================================================*\
	Function:	setcookies()
	Purpose:	set cookies for a redirection
\*======================================================================*/

	function setcookies()
	{
		for($x=0; $x&lt;count($this-&gt;headers); $x++)
		{
		if(preg_match('/^set-cookie:[\s]+([^=]+)=([^;]+)/i', $this-&gt;headers[$x],$match))
			$this-&gt;cookies[$match[1]] = urldecode($match[2]);
		}
	}


/*======================================================================*\
	Function:	_check_timeout
	Purpose:	checks whether timeout has occurred
	Input:		$fp	file pointer
\*======================================================================*/

	function _check_timeout($fp)
	{
		if ($this-&gt;read_timeout &gt; 0) {
			$fp_status = socket_get_status($fp);
			if ($fp_status[&quot;timed_out&quot;]) {
				$this-&gt;timed_out = true;
				return true;
			}
		}
		return false;
	}

/*======================================================================*\
	Function:	_connect
	Purpose:	make a socket connection
	Input:		$fp	file pointer
\*======================================================================*/

	function _connect(&amp;$fp)
	{
		if(!empty($this-&gt;proxy_host) &amp;&amp; !empty($this-&gt;proxy_port))
			{
				$this-&gt;_isproxy = true;

				$host = $this-&gt;proxy_host;
				$port = $this-&gt;proxy_port;
			}
		else
		{
			$host = $this-&gt;host;
			$port = $this-&gt;port;
		}

		$this-&gt;status = 0;

		if($fp = fsockopen(
					$host,
					$port,
					$errno,
					$errstr,
					$this-&gt;_fp_timeout
					))
		{
			// socket connection succeeded

			return true;
		}
		else
		{
			// socket connection failed
			$this-&gt;status = $errno;
			switch($errno)
			{
				case -3:
					$this-&gt;error=&quot;socket creation failed (-3)&quot;;
				case -4:
					$this-&gt;error=&quot;dns lookup failure (-4)&quot;;
				case -5:
					$this-&gt;error=&quot;connection refused or timed out (-5)&quot;;
				default:
					$this-&gt;error=&quot;connection failed (&quot;.$errno.&quot;)&quot;;
			}
			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, &quot;array&quot;);
		settype($formfiles, &quot;array&quot;);
		$postdata = '';

		if (count($formvars) == 0 &amp;&amp; count($formfiles) == 0)
			return;

		switch ($this-&gt;_submit_type) {
			case &quot;application/x-www-form-urlencoded&quot;:
				reset($formvars);
				foreach ( $formvars as $key =&gt; $val ) {
					if (is_array($val) || is_object($val)) {
						foreach ( $val as $cur_key =&gt; $cur_val ) {
							$postdata .= urlencode($key).&quot;[]=&quot;.urlencode($cur_val).&quot;&amp;&quot;;
						}
					} else
						$postdata .= urlencode($key).&quot;=&quot;.urlencode($val).&quot;&amp;&quot;;
				}
				break;

			case &quot;multipart/form-data&quot;:
				$this-&gt;_mime_boundary = &quot;Snoopy&quot;.md5(uniqid(microtime()));

				reset($formvars);
				foreach ( $formvars as $key =&gt; $val ) {
					if (is_array($val) || is_object($val)) {
						foreach ( $val as $cur_key =&gt; $cur_val ) {
							$postdata .= &quot;--&quot;.$this-&gt;_mime_boundary.&quot;\r\n&quot;;
							$postdata .= &quot;Content-Disposition: form-data; name=\&quot;$key\[\]\&quot;\r\n\r\n&quot;;
							$postdata .= &quot;$cur_val\r\n&quot;;
						}
					} else {
						$postdata .= &quot;--&quot;.$this-&gt;_mime_boundary.&quot;\r\n&quot;;
						$postdata .= &quot;Content-Disposition: form-data; name=\&quot;$key\&quot;\r\n\r\n&quot;;
						$postdata .= &quot;$val\r\n&quot;;
					}
				}

				reset($formfiles);
				foreach ( $formfiles as $field_name =&gt; $file_names ) {
					settype($file_names, &quot;array&quot;);
					foreach ( $file_names as $file_name ) {
						if (!is_readable($file_name)) continue;

						$fp = fopen($file_name, &quot;r&quot;);
						$file_content = fread($fp, filesize($file_name));
						fclose($fp);
						$base_name = basename($file_name);

						$postdata .= &quot;--&quot;.$this-&gt;_mime_boundary.&quot;\r\n&quot;;
						$postdata .= &quot;Content-Disposition: form-data; name=\&quot;$field_name\&quot;; filename=\&quot;$base_name\&quot;\r\n\r\n&quot;;
						$postdata .= &quot;$file_content\r\n&quot;;
					}
				}
				$postdata .= &quot;--&quot;.$this-&gt;_mime_boundary.&quot;--\r\n&quot;;
				break;
		}

		return $postdata;
	}
}
endif;
?&gt;
</textarea><br>
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