magpie's modified version of Snoopy class
authordhawes <dhawes>
Sun, 23 Jan 2005 15:48:57 +0000 (15:48 +0000)
committerdhawes <dhawes>
Sun, 23 Jan 2005 15:48:57 +0000 (15:48 +0000)
rss/magpie/extlib/Snoopy.class.inc [new file with mode: 0644]

diff --git a/rss/magpie/extlib/Snoopy.class.inc b/rss/magpie/extlib/Snoopy.class.inc
new file mode 100644 (file)
index 0000000..532ecba
--- /dev/null
@@ -0,0 +1,899 @@
+<?php
+
+/*************************************************
+
+Snoopy - the PHP net client
+Author: Monte Ohrt <monte@ispi.net>
+Copyright (c): 1999-2000 ispi, all rights reserved
+Version: 1.0
+
+ * 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@ispi.net
+
+Or, write to:
+Monte Ohrt
+CTO, ispi
+237 S. 70th suite 220
+Lincoln, NE 68510
+
+The latest version of Snoopy can be obtained from:
+http://snoopy.sourceforge.com
+
+*************************************************/
+
+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 $agent                      =       "Snoopy v1.0";          // 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()
+                                                                                               // or submitlinks()
+       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     $curl_path              =       "/usr/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.
+       
+       // send Accept-encoding: gzip?
+       var $use_gzip           = true; 
+       
+       /**** 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 = $URI_PARTS["pass"];
+                               
+               switch($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 = $URI_PARTS["path"].(isset($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;
+                                               $this->_frameurls = array();
+                                               
+                                               while(list(,$frameurl) = each($frameurls))
+                                               {
+                                                       if($this->_framedepth < $this->maxframes)
+                                                       {
+                                                               $this->fetch($frameurl);
+                                                               $this->_framedepth++;
+                                                       }
+                                                       else
+                                                               break;
+                                               }
+                                       }                                       
+                               }
+                               else
+                               {
+                                       return false;
+                               }
+                               return true;                                    
+                               break;
+                       case "https":
+                               if(!$this->curl_path || (!is_executable($this->curl_path))) {
+                                       $this->error = "Bad curl ($this->curl_path), can't fetch HTTPS \n";
+                                       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;
+                                       $this->_frameurls = array();
+
+                                       while(list(,$frameurl) = each($frameurls))
+                                       {
+                                               if($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;
+       }
+
+
+
+/*======================================================================*\
+       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
+
+               while(list($key,$val) = each($links[2]))
+               {
+                       if(!empty($val))
+                               $match[] = $val;
+               }                               
+               
+               while(list($key,$val) = each($links[3]))
+               {
+                       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
+                                               "'&(quote|#34);'i",                                     // replace html entities
+                                               "'&(amp|#38);'i",
+                                               "'&(lt|#60);'i",
+                                               "'&(gt|#62);'i",
+                                               "'&(nbsp|#160);'i",
+                                               "'&(iexcl|#161);'i",
+                                               "'&(cent|#162);'i",
+                                               "'&(pound|#163);'i",
+                                               "'&(copy|#169);'i"
+                                               );                              
+               $replace = array(       "",
+                                                       "",
+                                                       "\\1",
+                                                       "\"",
+                                                       "&",
+                                                       "<",
+                                                       ">",
+                                                       " ",
+                                                       chr(161),
+                                                       chr(162),
+                                                       chr(163),
+                                                       chr(169));
+                                       
+               $text = preg_replace($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]);
+                               
+               $search = array(        "|^http://".preg_quote($this->host)."|i",
+                                                       "|^(?!http://)(\/)?(?!mailto:)|i",
+                                                       "|/\./|",
+                                                       "|/[^\/]+/\.\./|"
+                                               );
+                                               
+               $replace = array(       "",
+                                                       $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="",$body="")
+       {
+               if($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."\r\n";
+               if(!empty($this->accept))
+                       $headers .= "Accept: ".$this->accept."\r\n";
+               
+               if($this->use_gzip) {
+                       // make sure PHP was built with --with-zlib
+                       // and we can handle gzipp'ed data
+                       if ( function_exists(gzinflate) ) {
+                          $headers .= "Accept-encoding: gzip\r\n";
+                       }
+                       else {
+                          trigger_error(
+                               "use_gzip is on, but PHP was built without zlib support.".
+                               "  Requesting file(s) without gzip encoding.", 
+                               E_USER_NOTICE);
+                       }
+               }
+               
+               if(!empty($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;
+                       while(list($headerKey,$headerVal) = each($this->rawheaders))
+                               $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";
+
+               $headers .= "\r\n";
+               
+               // set the read timeout if needed
+               if ($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);
+               
+               // content was returned gzip encoded?
+               $is_gzipped = false;
+                                               
+               while($currentHeader = fgets($fp,$this->_maxlinelen))
+               {
+                       if ($this->read_timeout > 0 && $this->_check_timeout($fp))
+                       {
+                               $this->status=-100;
+                               return false;
+                       }
+                               
+               //      if($currentHeader == "\r\n")
+                       if(preg_match("/^\r?\n$/", $currentHeader) )
+                             break;
+                                               
+                       // if a header begins with Location: or URI:, set the redirect
+                       if(preg_match("/^(Location:|URI:)/i",$currentHeader))
+                       {
+                               // get URL portion of the redirect
+                               preg_match("/^(Location:|URI:)\s+(.*)/",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;
+                       }
+                       
+                       if (preg_match("/Content-Encoding: gzip/", $currentHeader) ) {
+                               $is_gzipped = true;
+                       }
+                       
+                       $this->headers[] = $currentHeader;
+               }
+
+               # $results = fread($fp, $this->maxlength);
+               $results = "";
+               while ( $data = fread($fp, $this->maxlength) ) {
+                   $results .= $data;
+                   if (
+                       strlen($results) > $this->maxlength ) {
+                       break;
+                   }
+               }
+               
+               // gunzip
+               if ( $is_gzipped ) {
+                       // per http://www.php.net/manual/en/function.gzencode.php
+                       $results = substr($results, 10);
+                       $results = gzinflate($results);
+               }
+               
+               if ($this->read_timeout > 0 && $this->_check_timeout($fp))
+               {
+                       $this->status=-100;
+                       return false;
+               }
+               
+               // check if there is a a redirect meta tag
+               
+               if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]+URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$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))
+                       $headers[] = "Host: ".$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;
+                       while(list($headerKey,$headerVal) = each($this->rawheaders))
+                               $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.":".$this->pass);
+                       
+               for($curr_header = 0; $curr_header < count($headers); $curr_header++)
+                       $cmdline_params .= " -H \"".$headers[$curr_header]."\"";
+               
+               if(!empty($body))
+                       $cmdline_params .= " -d \"$body\"";
+               
+               if($this->read_timeout > 0)
+                       $cmdline_params .= " -m ".$this->read_timeout;
+               
+               $headerfile = uniqid(time());
+               
+               # accept self-signed certs
+               $cmdline_params .= " -k";
+               exec($this->curl_path." -D \"/tmp/$headerfile\"".$cmdline_params." ".$URI,$results,$return);
+               
+               if($return)
+               {
+                       $this->error = "Error: cURL could not retrieve the document, error $return.";
+                       return false;
+               }
+                       
+                       
+               $results = implode("\r\n",$results);
+               
+               $result_headers = file("/tmp/$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[$currentHeader]))
+                       {
+                               // get URL portion of the redirect
+                               preg_match("/^(Location: |URI:)(.*)/",chop($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];
+                           if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$this->response_code, $match))
+                           {
+                               $this->status= $match[1];
+                           }
+                       }
+                       $this->headers[] = $result_headers[$currentHeader];
+               }
+
+               // check if there is a 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 = $results;
+
+               unlink("/tmp/$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]] = $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($formfiles, "array");
+
+               if (count($formvars) == 0 && count($formfiles) == 0)
+                       return;
+               
+               switch ($this->_submit_type) {
+                       case "application/x-www-form-urlencoded":
+                               reset($formvars);
+                               while(list($key,$val) = each($formvars)) {
+                                       if (is_array($val) || is_object($val)) {
+                                               while (list($cur_key, $cur_val) = each($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);
+                               while(list($key,$val) = each($formvars)) {
+                                       if (is_array($val) || is_object($val)) {
+                                               while (list($cur_key, $cur_val) = each($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($formfiles);
+                               while (list($field_name, $file_names) = each($formfiles)) {
+                                       settype($file_names, "array");
+                                       while (list(, $file_name) = each($file_names)) {
+                                               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;
+       }
+}
+
+?>