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0,0 → 1,900 |
<?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/$headerfile\"".escapeshellcmd($cmdline_params)." ".escapeshellcmd($URI),$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; |
} |
} |
|
?> |