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<?php |
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/************************************************* |
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* |
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* Snoopy - the PHP net client |
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* Author: Monte Ohrt <[email protected]> |
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* Copyright (c): 1999-2014, all rights reserved |
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* Version: 2.0.0 |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* You may contact the author of Snoopy by e-mail at: |
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* [email protected] |
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* |
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* The latest version of Snoopy can be obtained from: |
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* http://snoopy.sourceforge.net/ |
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*************************************************/ |
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class Snoopy |
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{ |
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/**** Public variables ****/ |
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/* user definable vars */ |
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var $scheme = 'http'; // http or https |
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var $host = "www.php.net"; // host name we are connecting to |
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var $port = 80; // port we are connecting to |
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var $proxy_host = ""; // proxy host to use |
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var $proxy_port = ""; // proxy port to use |
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var $proxy_user = ""; // proxy user to use |
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var $proxy_pass = ""; // proxy password to use |
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var $agent = "Snoopy v2.0.0"; // agent we masquerade as |
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var $referer = ""; // referer info to pass |
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var $cookies = array(); // array of cookies to pass |
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// $cookies["username"]="joe"; |
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var $rawheaders = array(); // array of raw headers to send |
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// $rawheaders["Content-type"]="text/html"; |
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var $maxredirs = 5; // http redirection depth maximum. 0 = disallow |
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var $lastredirectaddr = ""; // contains address of last redirected address |
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var $offsiteok = true; // allows redirection off-site |
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var $maxframes = 0; // frame content depth maximum. 0 = disallow |
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var $expandlinks = true; // expand links to fully qualified URLs. |
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// this only applies to fetchlinks() |
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// submitlinks(), and submittext() |
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var $passcookies = true; // pass set cookies back through redirects |
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// NOTE: this currently does not respect |
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// dates, domains or paths. |
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var $user = ""; // user for http authentication |
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var $pass = ""; // password for http authentication |
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// http accept types |
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var $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*"; |
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var $results = ""; // where the content is put |
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var $error = ""; // error messages sent here |
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var $response_code = ""; // response code returned from server |
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var $headers = array(); // headers returned from server sent here |
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var $maxlength = 500000; // max return data length (body) |
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var $read_timeout = 0; // timeout on read operations, in seconds |
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// supported only since PHP 4 Beta 4 |
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// set to 0 to disallow timeouts |
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var $timed_out = false; // if a read operation timed out |
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var $status = 0; // http request status |
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var $temp_dir = "/tmp"; // temporary directory that the webserver |
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// has permission to write to. |
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// under Windows, this should be C:\temp |
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var $curl_path = false; |
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// deprecated, snoopy no longer uses curl for https requests, |
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// but instead requires the openssl extension. |
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// send Accept-encoding: gzip? |
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var $use_gzip = true; |
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// file or directory with CA certificates to verify remote host with |
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var $cafile; |
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var $capath; |
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/**** Private variables ****/ |
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var $_maxlinelen = 4096; // max line length (headers) |
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var $_httpmethod = "GET"; // default http request method |
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var $_httpversion = "HTTP/1.0"; // default http request version |
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var $_submit_method = "POST"; // default submit method |
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var $_submit_type = "application/x-www-form-urlencoded"; // default submit type |
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var $_mime_boundary = ""; // MIME boundary for multipart/form-data submit type |
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var $_redirectaddr = false; // will be set if page fetched is a redirect |
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var $_redirectdepth = 0; // increments on an http redirect |
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var $_frameurls = array(); // frame src urls |
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var $_framedepth = 0; // increments on frame depth |
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var $_isproxy = false; // set if using a proxy server |
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var $_fp_timeout = 30; // timeout for socket connection |
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/*======================================================================*\ |
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Function: fetch |
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Purpose: fetch the contents of a web page |
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(and possibly other protocols in the |
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future like ftp, nntp, gopher, etc.) |
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Input: $URI the location of the page to fetch |
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Output: $this->results the output text from the fetch |
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\*======================================================================*/ |
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function fetch($URI) |
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{ |
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$URI_PARTS = parse_url($URI); |
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if (!empty($URI_PARTS["user"])) |
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$this->user = $URI_PARTS["user"]; |
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if (!empty($URI_PARTS["pass"])) |
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$this->pass = $URI_PARTS["pass"]; |
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if (empty($URI_PARTS["query"])) |
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$URI_PARTS["query"] = ''; |
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if (empty($URI_PARTS["path"])) |
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$URI_PARTS["path"] = ''; |
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$fp = null; |
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switch (strtolower($URI_PARTS["scheme"])) { |
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View Code Duplication |
case "https": |
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if (!extension_loaded('openssl')) { |
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trigger_error("openssl extension required for HTTPS", E_USER_ERROR); |
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exit; |
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} |
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$this->port = 443; |
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case "http": |
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$this->scheme = strtolower($URI_PARTS["scheme"]); |
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$this->host = $URI_PARTS["host"]; |
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if (!empty($URI_PARTS["port"])) |
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$this->port = $URI_PARTS["port"]; |
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if ($this->_connect($fp)) { |
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if ($this->_isproxy) { |
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// using proxy, send entire URI |
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$this->_httprequest($URI, $fp, $URI, $this->_httpmethod); |
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View Code Duplication |
} else { |
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$path = $URI_PARTS["path"] . ($URI_PARTS["query"] ? "?" . $URI_PARTS["query"] : ""); |
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// no proxy, send only the path |
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$this->_httprequest($path, $fp, $URI, $this->_httpmethod); |
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} |
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$this->_disconnect($fp); |
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if ($this->_redirectaddr) { |
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/* url was redirected, check if we've hit the max depth */ |
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if ($this->maxredirs > $this->_redirectdepth) { |
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// only follow redirect if it's on this site, or offsiteok is true |
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if (preg_match("|^https?://" . preg_quote($this->host) . "|i", $this->_redirectaddr) || $this->offsiteok) { |
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/* follow the redirect */ |
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$this->_redirectdepth++; |
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$this->lastredirectaddr = $this->_redirectaddr; |
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$this->fetch($this->_redirectaddr); |
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} |
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} |
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} |
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View Code Duplication |
if ($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) { |
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$frameurls = $this->_frameurls; |
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$this->_frameurls = array(); |
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while (list(, $frameurl) = each($frameurls)) { |
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if ($this->_framedepth < $this->maxframes) { |
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$this->fetch($frameurl); |
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$this->_framedepth++; |
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} else |
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break; |
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} |
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} |
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} else { |
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return false; |
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} |
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return $this; |
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break; |
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default: |
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// not a valid protocol |
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$this->error = 'Invalid protocol "' . $URI_PARTS["scheme"] . '"\n'; |
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return false; |
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break; |
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} |
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return $this; |
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} |
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/*======================================================================*\ |
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Function: submit |
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Purpose: submit an http(s) form |
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Input: $URI the location to post the data |
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$formvars the formvars to use. |
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format: $formvars["var"] = "val"; |
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$formfiles an array of files to submit |
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format: $formfiles["var"] = "/dir/filename.ext"; |
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Output: $this->results the text output from the post |
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\*======================================================================*/ |
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function submit($URI, $formvars = "", $formfiles = "") |
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{ |
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unset($postdata); |
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$postdata = $this->_prepare_post_body($formvars, $formfiles); |
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$URI_PARTS = parse_url($URI); |
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if (!empty($URI_PARTS["user"])) |
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$this->user = $URI_PARTS["user"]; |
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if (!empty($URI_PARTS["pass"])) |
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$this->pass = $URI_PARTS["pass"]; |
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if (empty($URI_PARTS["query"])) |
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$URI_PARTS["query"] = ''; |
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if (empty($URI_PARTS["path"])) |
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$URI_PARTS["path"] = ''; |
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switch (strtolower($URI_PARTS["scheme"])) { |
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View Code Duplication |
case "https": |
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if (!extension_loaded('openssl')) { |
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trigger_error("openssl extension required for HTTPS", E_USER_ERROR); |
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exit; |
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} |
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$this->port = 443; |
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case "http": |
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$this->scheme = strtolower($URI_PARTS["scheme"]); |
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$this->host = $URI_PARTS["host"]; |
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if (!empty($URI_PARTS["port"])) |
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$this->port = $URI_PARTS["port"]; |
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if ($this->_connect($fp)) { |
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if ($this->_isproxy) { |
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// using proxy, send entire URI |
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$this->_httprequest($URI, $fp, $URI, $this->_submit_method, $this->_submit_type, $postdata); |
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View Code Duplication |
} else { |
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$path = $URI_PARTS["path"] . ($URI_PARTS["query"] ? "?" . $URI_PARTS["query"] : ""); |
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// no proxy, send only the path |
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$this->_httprequest($path, $fp, $URI, $this->_submit_method, $this->_submit_type, $postdata); |
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} |
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$this->_disconnect($fp); |
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if ($this->_redirectaddr) { |
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/* url was redirected, check if we've hit the max depth */ |
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if ($this->maxredirs > $this->_redirectdepth) { |
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if (!preg_match("|^" . $URI_PARTS["scheme"] . "://|", $this->_redirectaddr)) |
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$this->_redirectaddr = $this->_expandlinks($this->_redirectaddr, $URI_PARTS["scheme"] . "://" . $URI_PARTS["host"]); |
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255
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// only follow redirect if it's on this site, or offsiteok is true |
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if (preg_match("|^https?://" . preg_quote($this->host) . "|i", $this->_redirectaddr) || $this->offsiteok) { |
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/* follow the redirect */ |
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$this->_redirectdepth++; |
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$this->lastredirectaddr = $this->_redirectaddr; |
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if (strpos($this->_redirectaddr, "?") > 0) |
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$this->fetch($this->_redirectaddr); // the redirect has changed the request method from post to get |
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else |
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$this->submit($this->_redirectaddr, $formvars, $formfiles); |
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} |
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} |
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} |
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View Code Duplication |
if ($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) { |
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$frameurls = $this->_frameurls; |
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$this->_frameurls = array(); |
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272
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while (list(, $frameurl) = each($frameurls)) { |
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if ($this->_framedepth < $this->maxframes) { |
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$this->fetch($frameurl); |
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$this->_framedepth++; |
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} else |
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break; |
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} |
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} |
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} else { |
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return false; |
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} |
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return $this; |
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break; |
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default: |
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// not a valid protocol |
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$this->error = 'Invalid protocol "' . $URI_PARTS["scheme"] . '"\n'; |
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return false; |
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break; |
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} |
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return $this; |
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} |
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/*======================================================================*\ |
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Function: fetchlinks |
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Purpose: fetch the links from a web page |
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Input: $URI where you are fetching from |
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Output: $this->results an array of the URLs |
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\*======================================================================*/ |
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function fetchlinks($URI) |
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{ |
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if ($this->fetch($URI) !== false) { |
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if ($this->lastredirectaddr) |
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$URI = $this->lastredirectaddr; |
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if (is_array($this->results)) { |
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for ($x = 0; $x < count($this->results); $x++) |
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$this->results[$x] = $this->_striplinks($this->results[$x]); |
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} else |
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$this->results = $this->_striplinks($this->results); |
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313
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if ($this->expandlinks) |
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$this->results = $this->_expandlinks($this->results, $URI); |
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return $this; |
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} else |
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return false; |
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} |
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320
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/*======================================================================*\ |
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Function: fetchform |
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322
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Purpose: fetch the form elements from a web page |
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Input: $URI where you are fetching from |
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Output: $this->results the resulting html form |
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\*======================================================================*/ |
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327
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View Code Duplication |
function fetchform($URI) |
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328
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{ |
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330
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if ($this->fetch($URI) !== false) { |
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332
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if (is_array($this->results)) { |
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333
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for ($x = 0; $x < count($this->results); $x++) |
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334
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$this->results[$x] = $this->_stripform($this->results[$x]); |
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335
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} else |
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336
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$this->results = $this->_stripform($this->results); |
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338
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return $this; |
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339
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} else |
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return false; |
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341
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} |
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342
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343
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344
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/*======================================================================*\ |
|
345
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Function: fetchtext |
|
346
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Purpose: fetch the text from a web page, stripping the links |
|
347
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Input: $URI where you are fetching from |
|
348
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Output: $this->results the text from the web page |
|
349
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|
\*======================================================================*/ |
|
350
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351
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View Code Duplication |
function fetchtext($URI) |
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352
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{ |
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353
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if ($this->fetch($URI) !== false) { |
|
354
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if (is_array($this->results)) { |
|
355
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for ($x = 0; $x < count($this->results); $x++) |
|
356
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$this->results[$x] = $this->_striptext($this->results[$x]); |
|
357
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} else |
|
358
|
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$this->results = $this->_striptext($this->results); |
|
359
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return $this; |
|
360
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} else |
|
361
|
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return false; |
|
362
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|
} |
|
363
|
|
|
|
|
364
|
|
|
/*======================================================================*\ |
|
365
|
|
|
Function: submitlinks |
|
366
|
|
|
Purpose: grab links from a form submission |
|
367
|
|
|
Input: $URI where you are submitting from |
|
368
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|
|
Output: $this->results an array of the links from the post |
|
369
|
|
|
\*======================================================================*/ |
|
370
|
|
|
|
|
371
|
|
View Code Duplication |
function submitlinks($URI, $formvars = "", $formfiles = "") |
|
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|
|
|
|
372
|
|
|
{ |
|
373
|
|
|
if ($this->submit($URI, $formvars, $formfiles) !== false) { |
|
374
|
|
|
if ($this->lastredirectaddr) |
|
375
|
|
|
$URI = $this->lastredirectaddr; |
|
376
|
|
|
if (is_array($this->results)) { |
|
377
|
|
|
for ($x = 0; $x < count($this->results); $x++) { |
|
378
|
|
|
$this->results[$x] = $this->_striplinks($this->results[$x]); |
|
379
|
|
|
if ($this->expandlinks) |
|
380
|
|
|
$this->results[$x] = $this->_expandlinks($this->results[$x], $URI); |
|
381
|
|
|
} |
|
382
|
|
|
} else { |
|
383
|
|
|
$this->results = $this->_striplinks($this->results); |
|
|
|
|
|
|
384
|
|
|
if ($this->expandlinks) |
|
385
|
|
|
$this->results = $this->_expandlinks($this->results, $URI); |
|
386
|
|
|
} |
|
387
|
|
|
return $this; |
|
388
|
|
|
} else |
|
389
|
|
|
return false; |
|
390
|
|
|
} |
|
391
|
|
|
|
|
392
|
|
|
/*======================================================================*\ |
|
393
|
|
|
Function: submittext |
|
394
|
|
|
Purpose: grab text from a form submission |
|
395
|
|
|
Input: $URI where you are submitting from |
|
396
|
|
|
Output: $this->results the text from the web page |
|
397
|
|
|
\*======================================================================*/ |
|
398
|
|
|
|
|
399
|
|
View Code Duplication |
function submittext($URI, $formvars = "", $formfiles = "") |
|
|
|
|
|
|
400
|
|
|
{ |
|
401
|
|
|
if ($this->submit($URI, $formvars, $formfiles) !== false) { |
|
402
|
|
|
if ($this->lastredirectaddr) |
|
403
|
|
|
$URI = $this->lastredirectaddr; |
|
404
|
|
|
if (is_array($this->results)) { |
|
405
|
|
|
for ($x = 0; $x < count($this->results); $x++) { |
|
406
|
|
|
$this->results[$x] = $this->_striptext($this->results[$x]); |
|
407
|
|
|
if ($this->expandlinks) |
|
408
|
|
|
$this->results[$x] = $this->_expandlinks($this->results[$x], $URI); |
|
409
|
|
|
} |
|
410
|
|
|
} else { |
|
411
|
|
|
$this->results = $this->_striptext($this->results); |
|
412
|
|
|
if ($this->expandlinks) |
|
413
|
|
|
$this->results = $this->_expandlinks($this->results, $URI); |
|
414
|
|
|
} |
|
415
|
|
|
return $this; |
|
416
|
|
|
} else |
|
417
|
|
|
return false; |
|
418
|
|
|
} |
|
419
|
|
|
|
|
420
|
|
|
|
|
421
|
|
|
/*======================================================================*\ |
|
422
|
|
|
Function: set_submit_multipart |
|
423
|
|
|
Purpose: Set the form submission content type to |
|
424
|
|
|
multipart/form-data |
|
425
|
|
|
\*======================================================================*/ |
|
426
|
|
|
function set_submit_multipart() |
|
|
|
|
|
|
427
|
|
|
{ |
|
428
|
|
|
$this->_submit_type = "multipart/form-data"; |
|
429
|
|
|
return $this; |
|
430
|
|
|
} |
|
431
|
|
|
|
|
432
|
|
|
|
|
433
|
|
|
/*======================================================================*\ |
|
434
|
|
|
Function: set_submit_normal |
|
435
|
|
|
Purpose: Set the form submission content type to |
|
436
|
|
|
application/x-www-form-urlencoded |
|
437
|
|
|
\*======================================================================*/ |
|
438
|
|
|
function set_submit_normal() |
|
|
|
|
|
|
439
|
|
|
{ |
|
440
|
|
|
$this->_submit_type = "application/x-www-form-urlencoded"; |
|
441
|
|
|
return $this; |
|
442
|
|
|
} |
|
443
|
|
|
|
|
444
|
|
|
|
|
445
|
|
|
|
|
446
|
|
|
|
|
447
|
|
|
/*======================================================================*\ |
|
448
|
|
|
Private functions |
|
449
|
|
|
\*======================================================================*/ |
|
450
|
|
|
|
|
451
|
|
|
|
|
452
|
|
|
/*======================================================================*\ |
|
453
|
|
|
Function: _striplinks |
|
454
|
|
|
Purpose: strip the hyperlinks from an html document |
|
455
|
|
|
Input: $document document to strip. |
|
456
|
|
|
Output: $match an array of the links |
|
457
|
|
|
\*======================================================================*/ |
|
458
|
|
|
|
|
459
|
|
|
function _striplinks($document) |
|
|
|
|
|
|
460
|
|
|
{ |
|
461
|
|
|
preg_match_all("'<\s*a\s.*?href\s*=\s* # find <a href= |
|
462
|
|
|
([\"\'])? # find single or double quote |
|
463
|
|
|
(?(1) (.*?)\\1 | ([^\s\>]+)) # if quote found, match up to next matching |
|
464
|
|
|
# quote, otherwise match up to next space |
|
465
|
|
|
'isx", $document, $links); |
|
466
|
|
|
|
|
467
|
|
|
|
|
468
|
|
|
// catenate the non-empty matches from the conditional subpattern |
|
469
|
|
|
|
|
470
|
|
View Code Duplication |
while (list($key, $val) = each($links[2])) { |
|
|
|
|
|
|
471
|
|
|
if (!empty($val)) |
|
472
|
|
|
$match[] = $val; |
|
|
|
|
|
|
473
|
|
|
} |
|
474
|
|
|
|
|
475
|
|
View Code Duplication |
while (list($key, $val) = each($links[3])) { |
|
|
|
|
|
|
476
|
|
|
if (!empty($val)) |
|
477
|
|
|
$match[] = $val; |
|
|
|
|
|
|
478
|
|
|
} |
|
479
|
|
|
|
|
480
|
|
|
// return the links |
|
481
|
|
|
return $match; |
|
482
|
|
|
} |
|
483
|
|
|
|
|
484
|
|
|
/*======================================================================*\ |
|
485
|
|
|
Function: _stripform |
|
486
|
|
|
Purpose: strip the form elements from an html document |
|
487
|
|
|
Input: $document document to strip. |
|
488
|
|
|
Output: $match an array of the links |
|
489
|
|
|
\*======================================================================*/ |
|
490
|
|
|
|
|
491
|
|
|
function _stripform($document) |
|
|
|
|
|
|
492
|
|
|
{ |
|
493
|
|
|
preg_match_all("'<\/?(FORM|INPUT|SELECT|TEXTAREA|(OPTION))[^<>]*>(?(2)(.*(?=<\/?(option|select)[^<>]*>[\r\n]*)|(?=[\r\n]*))|(?=[\r\n]*))'Usi", $document, $elements); |
|
494
|
|
|
|
|
495
|
|
|
// catenate the matches |
|
496
|
|
|
$match = implode("\r\n", $elements[0]); |
|
497
|
|
|
|
|
498
|
|
|
// return the links |
|
499
|
|
|
return $match; |
|
500
|
|
|
} |
|
501
|
|
|
|
|
502
|
|
|
|
|
503
|
|
|
/*======================================================================*\ |
|
504
|
|
|
Function: _striptext |
|
505
|
|
|
Purpose: strip the text from an html document |
|
506
|
|
|
Input: $document document to strip. |
|
507
|
|
|
Output: $text the resulting text |
|
508
|
|
|
\*======================================================================*/ |
|
509
|
|
|
|
|
510
|
|
|
function _striptext($document) |
|
|
|
|
|
|
511
|
|
|
{ |
|
512
|
|
|
|
|
513
|
|
|
// I didn't use preg eval (//e) since that is only available in PHP 4.0. |
|
514
|
|
|
// so, list your entities one by one here. I included some of the |
|
515
|
|
|
// more common ones. |
|
516
|
|
|
|
|
517
|
|
|
$search = array("'<script[^>]*?>.*?</script>'si", // strip out javascript |
|
518
|
|
|
"'<[\/\!]*?[^<>]*?>'si", // strip out html tags |
|
519
|
|
|
"'([\r\n])[\s]+'", // strip out white space |
|
520
|
|
|
"'&(quot|#34|#034|#x22);'i", // replace html entities |
|
521
|
|
|
"'&(amp|#38|#038|#x26);'i", // added hexadecimal values |
|
522
|
|
|
"'&(lt|#60|#060|#x3c);'i", |
|
523
|
|
|
"'&(gt|#62|#062|#x3e);'i", |
|
524
|
|
|
"'&(nbsp|#160|#xa0);'i", |
|
525
|
|
|
"'&(iexcl|#161);'i", |
|
526
|
|
|
"'&(cent|#162);'i", |
|
527
|
|
|
"'&(pound|#163);'i", |
|
528
|
|
|
"'&(copy|#169);'i", |
|
529
|
|
|
"'&(reg|#174);'i", |
|
530
|
|
|
"'&(deg|#176);'i", |
|
531
|
|
|
"'&(#39|#039|#x27);'", |
|
532
|
|
|
"'&(euro|#8364);'i", // europe |
|
533
|
|
|
"'&a(uml|UML);'", // german |
|
534
|
|
|
"'&o(uml|UML);'", |
|
535
|
|
|
"'&u(uml|UML);'", |
|
536
|
|
|
"'&A(uml|UML);'", |
|
537
|
|
|
"'&O(uml|UML);'", |
|
538
|
|
|
"'&U(uml|UML);'", |
|
539
|
|
|
"'ß'i", |
|
540
|
|
|
); |
|
541
|
|
|
$replace = array("", |
|
542
|
|
|
"", |
|
543
|
|
|
"\\1", |
|
544
|
|
|
"\"", |
|
545
|
|
|
"&", |
|
546
|
|
|
"<", |
|
547
|
|
|
">", |
|
548
|
|
|
" ", |
|
549
|
|
|
chr(161), |
|
550
|
|
|
chr(162), |
|
551
|
|
|
chr(163), |
|
552
|
|
|
chr(169), |
|
553
|
|
|
chr(174), |
|
554
|
|
|
chr(176), |
|
555
|
|
|
chr(39), |
|
556
|
|
|
chr(128), |
|
557
|
|
|
"ä", |
|
558
|
|
|
"ö", |
|
559
|
|
|
"ü", |
|
560
|
|
|
"Ä", |
|
561
|
|
|
"Ö", |
|
562
|
|
|
"Ü", |
|
563
|
|
|
"ß", |
|
564
|
|
|
); |
|
565
|
|
|
|
|
566
|
|
|
$text = preg_replace($search, $replace, $document); |
|
567
|
|
|
|
|
568
|
|
|
return $text; |
|
569
|
|
|
} |
|
570
|
|
|
|
|
571
|
|
|
/*======================================================================*\ |
|
572
|
|
|
Function: _expandlinks |
|
573
|
|
|
Purpose: expand each link into a fully qualified URL |
|
574
|
|
|
Input: $links the links to qualify |
|
575
|
|
|
$URI the full URI to get the base from |
|
576
|
|
|
Output: $expandedLinks the expanded links |
|
577
|
|
|
\*======================================================================*/ |
|
578
|
|
|
|
|
579
|
|
|
function _expandlinks($links, $URI) |
|
|
|
|
|
|
580
|
|
|
{ |
|
581
|
|
|
|
|
582
|
|
|
preg_match("/^[^\?]+/", $URI, $match); |
|
583
|
|
|
|
|
584
|
|
|
$match = preg_replace("|/[^\/\.]+\.[^\/\.]+$|", "", $match[0]); |
|
585
|
|
|
$match = preg_replace("|/$|", "", $match); |
|
586
|
|
|
$match_part = parse_url($match); |
|
587
|
|
|
$match_root = |
|
588
|
|
|
$match_part["scheme"] . "://" . $match_part["host"]; |
|
589
|
|
|
|
|
590
|
|
|
$search = array("|^http://" . preg_quote($this->host) . "|i", |
|
591
|
|
|
"|^(\/)|i", |
|
592
|
|
|
"|^(?!http://)(?!mailto:)|i", |
|
593
|
|
|
"|/\./|", |
|
594
|
|
|
"|/[^\/]+/\.\./|" |
|
595
|
|
|
); |
|
596
|
|
|
|
|
597
|
|
|
$replace = array("", |
|
598
|
|
|
$match_root . "/", |
|
599
|
|
|
$match . "/", |
|
600
|
|
|
"/", |
|
601
|
|
|
"/" |
|
602
|
|
|
); |
|
603
|
|
|
|
|
604
|
|
|
$expandedLinks = preg_replace($search, $replace, $links); |
|
605
|
|
|
|
|
606
|
|
|
return $expandedLinks; |
|
607
|
|
|
} |
|
608
|
|
|
|
|
609
|
|
|
/*======================================================================*\ |
|
610
|
|
|
Function: _httprequest |
|
611
|
|
|
Purpose: go get the http(s) data from the server |
|
612
|
|
|
Input: $url the url to fetch |
|
613
|
|
|
$fp the current open file pointer |
|
614
|
|
|
$URI the full URI |
|
615
|
|
|
$body body contents to send if any (POST) |
|
616
|
|
|
Output: |
|
617
|
|
|
\*======================================================================*/ |
|
618
|
|
|
|
|
619
|
|
|
function _httprequest($url, $fp, $URI, $http_method, $content_type = "", $body = "") |
|
|
|
|
|
|
620
|
|
|
{ |
|
621
|
|
|
$cookie_headers = ''; |
|
622
|
|
|
if ($this->passcookies && $this->_redirectaddr) |
|
623
|
|
|
$this->setcookies(); |
|
624
|
|
|
|
|
625
|
|
|
$URI_PARTS = parse_url($URI); |
|
626
|
|
|
if (empty($url)) |
|
627
|
|
|
$url = "/"; |
|
628
|
|
|
$headers = $http_method . " " . $url . " " . $this->_httpversion . "\r\n"; |
|
629
|
|
|
if (!empty($this->host) && !isset($this->rawheaders['Host'])) { |
|
630
|
|
|
$headers .= "Host: " . $this->host; |
|
631
|
|
|
if (!empty($this->port) && $this->port != '80') |
|
632
|
|
|
$headers .= ":" . $this->port; |
|
633
|
|
|
$headers .= "\r\n"; |
|
634
|
|
|
} |
|
635
|
|
|
if (!empty($this->agent)) |
|
636
|
|
|
$headers .= "User-Agent: " . $this->agent . "\r\n"; |
|
637
|
|
|
if (!empty($this->accept)) |
|
638
|
|
|
$headers .= "Accept: " . $this->accept . "\r\n"; |
|
639
|
|
|
if ($this->use_gzip) { |
|
640
|
|
|
// make sure PHP was built with --with-zlib |
|
641
|
|
|
// and we can handle gzipp'ed data |
|
642
|
|
|
if (function_exists('gzinflate')) { |
|
643
|
|
|
$headers .= "Accept-encoding: gzip\r\n"; |
|
644
|
|
|
} else { |
|
645
|
|
|
trigger_error( |
|
646
|
|
|
"use_gzip is on, but PHP was built without zlib support." . |
|
647
|
|
|
" Requesting file(s) without gzip encoding.", |
|
648
|
|
|
E_USER_NOTICE); |
|
649
|
|
|
} |
|
650
|
|
|
} |
|
651
|
|
|
if (!empty($this->referer)) |
|
652
|
|
|
$headers .= "Referer: " . $this->referer . "\r\n"; |
|
653
|
|
|
if (!empty($this->cookies)) { |
|
654
|
|
|
if (!is_array($this->cookies)) |
|
655
|
|
|
$this->cookies = (array)$this->cookies; |
|
656
|
|
|
|
|
657
|
|
|
reset($this->cookies); |
|
658
|
|
|
if (count($this->cookies) > 0) { |
|
659
|
|
|
$cookie_headers .= 'Cookie: '; |
|
660
|
|
|
foreach ($this->cookies as $cookieKey => $cookieVal) { |
|
661
|
|
|
$cookie_headers .= $cookieKey . "=" . urlencode($cookieVal) . "; "; |
|
662
|
|
|
} |
|
663
|
|
|
$headers .= substr($cookie_headers, 0, -2) . "\r\n"; |
|
664
|
|
|
} |
|
665
|
|
|
} |
|
666
|
|
|
if (!empty($this->rawheaders)) { |
|
667
|
|
|
if (!is_array($this->rawheaders)) |
|
668
|
|
|
$this->rawheaders = (array)$this->rawheaders; |
|
669
|
|
|
while (list($headerKey, $headerVal) = each($this->rawheaders)) |
|
670
|
|
|
$headers .= $headerKey . ": " . $headerVal . "\r\n"; |
|
671
|
|
|
} |
|
672
|
|
|
if (!empty($content_type)) { |
|
673
|
|
|
$headers .= "Content-type: $content_type"; |
|
674
|
|
|
if ($content_type == "multipart/form-data") |
|
675
|
|
|
$headers .= "; boundary=" . $this->_mime_boundary; |
|
676
|
|
|
$headers .= "\r\n"; |
|
677
|
|
|
} |
|
678
|
|
|
if (!empty($body)) |
|
679
|
|
|
$headers .= "Content-length: " . strlen($body) . "\r\n"; |
|
680
|
|
View Code Duplication |
if (!empty($this->user) || !empty($this->pass)) |
|
681
|
|
|
$headers .= "Authorization: Basic " . base64_encode($this->user . ":" . $this->pass) . "\r\n"; |
|
682
|
|
|
|
|
683
|
|
|
//add proxy auth headers |
|
684
|
|
View Code Duplication |
if (!empty($this->proxy_user)) |
|
685
|
|
|
$headers .= 'Proxy-Authorization: ' . 'Basic ' . base64_encode($this->proxy_user . ':' . $this->proxy_pass) . "\r\n"; |
|
686
|
|
|
|
|
687
|
|
|
|
|
688
|
|
|
$headers .= "\r\n"; |
|
689
|
|
|
|
|
690
|
|
|
// set the read timeout if needed |
|
691
|
|
|
if ($this->read_timeout > 0) |
|
692
|
|
|
socket_set_timeout($fp, $this->read_timeout); |
|
693
|
|
|
$this->timed_out = false; |
|
694
|
|
|
|
|
695
|
|
|
fwrite($fp, $headers . $body, strlen($headers . $body)); |
|
696
|
|
|
|
|
697
|
|
|
$this->_redirectaddr = false; |
|
698
|
|
|
unset($this->headers); |
|
699
|
|
|
|
|
700
|
|
|
// content was returned gzip encoded? |
|
701
|
|
|
$is_gzipped = false; |
|
702
|
|
|
|
|
703
|
|
|
while ($currentHeader = fgets($fp, $this->_maxlinelen)) { |
|
704
|
|
View Code Duplication |
if ($this->read_timeout > 0 && $this->_check_timeout($fp)) { |
|
705
|
|
|
$this->status = -100; |
|
706
|
|
|
return false; |
|
707
|
|
|
} |
|
708
|
|
|
|
|
709
|
|
|
if ($currentHeader == "\r\n") |
|
710
|
|
|
break; |
|
711
|
|
|
|
|
712
|
|
|
// if a header begins with Location: or URI:, set the redirect |
|
713
|
|
|
if (preg_match("/^(Location:|URI:)/i", $currentHeader)) { |
|
714
|
|
|
// get URL portion of the redirect |
|
715
|
|
|
preg_match("/^(Location:|URI:)[ ]+(.*)/i", chop($currentHeader), $matches); |
|
716
|
|
|
// look for :// in the Location header to see if hostname is included |
|
717
|
|
|
if (!preg_match("|\:\/\/|", $matches[2])) { |
|
718
|
|
|
// no host in the path, so prepend |
|
719
|
|
|
$this->_redirectaddr = $URI_PARTS["scheme"] . "://" . $this->host . ":" . $this->port; |
|
|
|
|
|
|
720
|
|
|
// eliminate double slash |
|
721
|
|
|
if (!preg_match("|^/|", $matches[2])) |
|
722
|
|
|
$this->_redirectaddr .= "/" . $matches[2]; |
|
723
|
|
|
else |
|
724
|
|
|
$this->_redirectaddr .= $matches[2]; |
|
725
|
|
|
} else |
|
726
|
|
|
$this->_redirectaddr = $matches[2]; |
|
|
|
|
|
|
727
|
|
|
} |
|
728
|
|
|
|
|
729
|
|
|
if (preg_match("|^HTTP/|", $currentHeader)) { |
|
730
|
|
|
if (preg_match("|^HTTP/[^\s]*\s(.*?)\s|", $currentHeader, $status)) { |
|
731
|
|
|
$this->status = $status[1]; |
|
|
|
|
|
|
732
|
|
|
} |
|
733
|
|
|
$this->response_code = $currentHeader; |
|
734
|
|
|
} |
|
735
|
|
|
|
|
736
|
|
|
if (preg_match("/Content-Encoding: gzip/", $currentHeader)) { |
|
737
|
|
|
$is_gzipped = true; |
|
738
|
|
|
} |
|
739
|
|
|
|
|
740
|
|
|
$this->headers[] = $currentHeader; |
|
741
|
|
|
} |
|
742
|
|
|
|
|
743
|
|
|
$results = ''; |
|
744
|
|
|
do { |
|
745
|
|
|
$_data = fread($fp, $this->maxlength); |
|
746
|
|
|
if (strlen($_data) == 0) { |
|
747
|
|
|
break; |
|
748
|
|
|
} |
|
749
|
|
|
$results .= $_data; |
|
750
|
|
|
} while (true); |
|
751
|
|
|
|
|
752
|
|
|
// gunzip |
|
753
|
|
|
if ($is_gzipped) { |
|
754
|
|
|
// per http://www.php.net/manual/en/function.gzencode.php |
|
755
|
|
|
$results = substr($results, 10); |
|
756
|
|
|
$results = gzinflate($results); |
|
757
|
|
|
} |
|
758
|
|
|
|
|
759
|
|
View Code Duplication |
if ($this->read_timeout > 0 && $this->_check_timeout($fp)) { |
|
760
|
|
|
$this->status = -100; |
|
761
|
|
|
return false; |
|
762
|
|
|
} |
|
763
|
|
|
|
|
764
|
|
|
// check if there is a a redirect meta tag |
|
765
|
|
|
|
|
766
|
|
|
if (preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]*URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i", $results, $match)) { |
|
767
|
|
|
$this->_redirectaddr = $this->_expandlinks($match[1], $URI); |
|
768
|
|
|
} |
|
769
|
|
|
|
|
770
|
|
|
// have we hit our frame depth and is there frame src to fetch? |
|
771
|
|
|
if (($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i", $results, $match)) { |
|
772
|
|
|
$this->results[] = $results; |
|
773
|
|
|
for ($x = 0; $x < count($match[1]); $x++) |
|
774
|
|
|
$this->_frameurls[] = $this->_expandlinks($match[1][$x], $URI_PARTS["scheme"] . "://" . $this->host); |
|
775
|
|
|
} // have we already fetched framed content? |
|
776
|
|
|
elseif (is_array($this->results)) |
|
777
|
|
|
$this->results[] = $results; |
|
778
|
|
|
// no framed content |
|
779
|
|
|
else |
|
780
|
|
|
$this->results = $results; |
|
781
|
|
|
|
|
782
|
|
|
return $this; |
|
783
|
|
|
} |
|
784
|
|
|
|
|
785
|
|
|
/*======================================================================*\ |
|
786
|
|
|
Function: setcookies() |
|
787
|
|
|
Purpose: set cookies for a redirection |
|
788
|
|
|
\*======================================================================*/ |
|
789
|
|
|
|
|
790
|
|
|
function setcookies() |
|
|
|
|
|
|
791
|
|
|
{ |
|
792
|
|
|
for ($x = 0; $x < count($this->headers); $x++) { |
|
793
|
|
|
if (preg_match('/^set-cookie:[\s]+([^=]+)=([^;]+)/i', $this->headers[$x], $match)) |
|
794
|
|
|
$this->cookies[$match[1]] = urldecode($match[2]); |
|
795
|
|
|
} |
|
796
|
|
|
return $this; |
|
797
|
|
|
} |
|
798
|
|
|
|
|
799
|
|
|
|
|
800
|
|
|
/*======================================================================*\ |
|
801
|
|
|
Function: _check_timeout |
|
802
|
|
|
Purpose: checks whether timeout has occurred |
|
803
|
|
|
Input: $fp file pointer |
|
804
|
|
|
\*======================================================================*/ |
|
805
|
|
|
|
|
806
|
|
|
function _check_timeout($fp) |
|
|
|
|
|
|
807
|
|
|
{ |
|
808
|
|
|
if ($this->read_timeout > 0) { |
|
809
|
|
|
$fp_status = socket_get_status($fp); |
|
810
|
|
|
if ($fp_status["timed_out"]) { |
|
811
|
|
|
$this->timed_out = true; |
|
812
|
|
|
return true; |
|
813
|
|
|
} |
|
814
|
|
|
} |
|
815
|
|
|
return false; |
|
816
|
|
|
} |
|
817
|
|
|
|
|
818
|
|
|
/*======================================================================*\ |
|
819
|
|
|
Function: _connect |
|
820
|
|
|
Purpose: make a socket connection |
|
821
|
|
|
Input: $fp file pointer |
|
822
|
|
|
\*======================================================================*/ |
|
823
|
|
|
|
|
824
|
|
|
function _connect(&$fp) |
|
|
|
|
|
|
825
|
|
|
{ |
|
826
|
|
|
if (!empty($this->proxy_host) && !empty($this->proxy_port)) { |
|
827
|
|
|
$this->_isproxy = true; |
|
828
|
|
|
|
|
829
|
|
|
$host = $this->proxy_host; |
|
830
|
|
|
$port = $this->proxy_port; |
|
831
|
|
|
|
|
832
|
|
|
if ($this->scheme == 'https') { |
|
833
|
|
|
trigger_error("HTTPS connections over proxy are currently not supported", E_USER_ERROR); |
|
834
|
|
|
exit; |
|
835
|
|
|
} |
|
836
|
|
|
} else { |
|
837
|
|
|
$host = $this->host; |
|
838
|
|
|
$port = $this->port; |
|
839
|
|
|
} |
|
840
|
|
|
|
|
841
|
|
|
$this->status = 0; |
|
842
|
|
|
|
|
843
|
|
|
$context_opts = array(); |
|
844
|
|
|
|
|
845
|
|
|
if ($this->scheme == 'https') { |
|
846
|
|
|
// if cafile or capath is specified, enable certificate |
|
847
|
|
|
// verification (including name checks) |
|
848
|
|
|
if (isset($this->cafile) || isset($this->capath)) { |
|
849
|
|
|
$context_opts['ssl'] = array( |
|
850
|
|
|
'verify_peer' => true, |
|
851
|
|
|
'CN_match' => $this->host, |
|
852
|
|
|
'disable_compression' => true, |
|
853
|
|
|
); |
|
854
|
|
|
|
|
855
|
|
|
if (isset($this->cafile)) |
|
856
|
|
|
$context_opts['ssl']['cafile'] = $this->cafile; |
|
857
|
|
|
if (isset($this->capath)) |
|
858
|
|
|
$context_opts['ssl']['capath'] = $this->capath; |
|
859
|
|
|
} |
|
860
|
|
|
|
|
861
|
|
|
$host = 'ssl://' . $host; |
|
862
|
|
|
} |
|
863
|
|
|
|
|
864
|
|
|
$context = stream_context_create($context_opts); |
|
865
|
|
|
|
|
866
|
|
|
if (version_compare(PHP_VERSION, '5.0.0', '>')) { |
|
867
|
|
|
if($this->scheme == 'http') |
|
868
|
|
|
$host = "tcp://" . $host; |
|
869
|
|
|
$fp = stream_socket_client( |
|
870
|
|
|
"$host:$port", |
|
871
|
|
|
$errno, |
|
872
|
|
|
$errmsg, |
|
873
|
|
|
$this->_fp_timeout, |
|
874
|
|
|
STREAM_CLIENT_CONNECT, |
|
875
|
|
|
$context); |
|
876
|
|
|
} else { |
|
877
|
|
|
$fp = fsockopen( |
|
878
|
|
|
$host, |
|
879
|
|
|
$port, |
|
880
|
|
|
$errno, |
|
881
|
|
|
$errstr, |
|
882
|
|
|
$this->_fp_timeout, |
|
883
|
|
|
$context); |
|
884
|
|
|
} |
|
885
|
|
|
|
|
886
|
|
|
if ($fp) { |
|
887
|
|
|
// socket connection succeeded |
|
888
|
|
|
return true; |
|
889
|
|
|
} else { |
|
890
|
|
|
// socket connection failed |
|
891
|
|
|
$this->status = $errno; |
|
892
|
|
|
switch ($errno) { |
|
893
|
|
|
case -3: |
|
894
|
|
|
$this->error = "socket creation failed (-3)"; |
|
895
|
|
|
case -4: |
|
896
|
|
|
$this->error = "dns lookup failure (-4)"; |
|
897
|
|
|
case -5: |
|
898
|
|
|
$this->error = "connection refused or timed out (-5)"; |
|
899
|
|
|
default: |
|
900
|
|
|
$this->error = "connection failed (" . $errno . ")"; |
|
901
|
|
|
} |
|
902
|
|
|
return false; |
|
903
|
|
|
} |
|
904
|
|
|
} |
|
905
|
|
|
|
|
906
|
|
|
/*======================================================================*\ |
|
907
|
|
|
Function: _disconnect |
|
908
|
|
|
Purpose: disconnect a socket connection |
|
909
|
|
|
Input: $fp file pointer |
|
910
|
|
|
\*======================================================================*/ |
|
911
|
|
|
|
|
912
|
|
|
function _disconnect($fp) |
|
|
|
|
|
|
913
|
|
|
{ |
|
914
|
|
|
return (fclose($fp)); |
|
915
|
|
|
} |
|
916
|
|
|
|
|
917
|
|
|
|
|
918
|
|
|
/*======================================================================*\ |
|
919
|
|
|
Function: _prepare_post_body |
|
920
|
|
|
Purpose: Prepare post body according to encoding type |
|
921
|
|
|
Input: $formvars - form variables |
|
922
|
|
|
$formfiles - form upload files |
|
923
|
|
|
Output: post body |
|
924
|
|
|
\*======================================================================*/ |
|
925
|
|
|
|
|
926
|
|
|
function _prepare_post_body($formvars, $formfiles) |
|
|
|
|
|
|
927
|
|
|
{ |
|
928
|
|
|
settype($formvars, "array"); |
|
929
|
|
|
settype($formfiles, "array"); |
|
930
|
|
|
$postdata = ''; |
|
931
|
|
|
|
|
932
|
|
|
if (count($formvars) == 0 && count($formfiles) == 0) |
|
933
|
|
|
return; |
|
934
|
|
|
|
|
935
|
|
|
switch ($this->_submit_type) { |
|
936
|
|
|
case "application/x-www-form-urlencoded": |
|
937
|
|
|
reset($formvars); |
|
938
|
|
|
while (list($key, $val) = each($formvars)) { |
|
939
|
|
|
if (is_array($val) || is_object($val)) { |
|
940
|
|
|
while (list($cur_key, $cur_val) = each($val)) { |
|
|
|
|
|
|
941
|
|
|
$postdata .= urlencode($key) . "[]=" . urlencode($cur_val) . "&"; |
|
942
|
|
|
} |
|
943
|
|
|
} else |
|
944
|
|
|
$postdata .= urlencode($key) . "=" . urlencode($val) . "&"; |
|
945
|
|
|
} |
|
946
|
|
|
break; |
|
947
|
|
|
|
|
948
|
|
|
case "multipart/form-data": |
|
949
|
|
|
$this->_mime_boundary = "Snoopy" . md5(uniqid(microtime())); |
|
950
|
|
|
|
|
951
|
|
|
reset($formvars); |
|
952
|
|
|
while (list($key, $val) = each($formvars)) { |
|
953
|
|
|
if (is_array($val) || is_object($val)) { |
|
954
|
|
|
while (list($cur_key, $cur_val) = each($val)) { |
|
|
|
|
|
|
955
|
|
|
$postdata .= "--" . $this->_mime_boundary . "\r\n"; |
|
956
|
|
|
$postdata .= "Content-Disposition: form-data; name=\"$key\[\]\"\r\n\r\n"; |
|
957
|
|
|
$postdata .= "$cur_val\r\n"; |
|
958
|
|
|
} |
|
959
|
|
|
} else { |
|
960
|
|
|
$postdata .= "--" . $this->_mime_boundary . "\r\n"; |
|
961
|
|
|
$postdata .= "Content-Disposition: form-data; name=\"$key\"\r\n\r\n"; |
|
962
|
|
|
$postdata .= "$val\r\n"; |
|
963
|
|
|
} |
|
964
|
|
|
} |
|
965
|
|
|
|
|
966
|
|
|
reset($formfiles); |
|
967
|
|
|
while (list($field_name, $file_names) = each($formfiles)) { |
|
968
|
|
|
settype($file_names, "array"); |
|
969
|
|
|
while (list(, $file_name) = each($file_names)) { |
|
970
|
|
|
if (!is_readable($file_name)) continue; |
|
971
|
|
|
|
|
972
|
|
|
$fp = fopen($file_name, "r"); |
|
973
|
|
|
$file_content = fread($fp, filesize($file_name)); |
|
974
|
|
|
fclose($fp); |
|
975
|
|
|
$base_name = basename($file_name); |
|
976
|
|
|
|
|
977
|
|
|
$postdata .= "--" . $this->_mime_boundary . "\r\n"; |
|
978
|
|
|
$postdata .= "Content-Disposition: form-data; name=\"$field_name\"; filename=\"$base_name\"\r\n\r\n"; |
|
979
|
|
|
$postdata .= "$file_content\r\n"; |
|
980
|
|
|
} |
|
981
|
|
|
} |
|
982
|
|
|
$postdata .= "--" . $this->_mime_boundary . "--\r\n"; |
|
983
|
|
|
break; |
|
984
|
|
|
} |
|
985
|
|
|
|
|
986
|
|
|
return $postdata; |
|
987
|
|
|
} |
|
988
|
|
|
|
|
989
|
|
|
/*======================================================================*\ |
|
990
|
|
|
Function: getResults |
|
991
|
|
|
Purpose: return the results of a request |
|
992
|
|
|
Output: string results |
|
993
|
|
|
\*======================================================================*/ |
|
994
|
|
|
|
|
995
|
|
|
function getResults() |
|
|
|
|
|
|
996
|
|
|
{ |
|
997
|
|
|
return $this->results; |
|
998
|
|
|
} |
|
999
|
|
|
} |
|
1000
|
|
|
|
evolution-cms /
evolution
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