diff options
Diffstat (limited to 'modules/snoopy')
| -rw-r--r-- | modules/snoopy/AUTHORS | 11 | ||||
| -rw-r--r-- | modules/snoopy/COPYING.lib | 458 | ||||
| -rw-r--r-- | modules/snoopy/ChangeLog | 105 | ||||
| -rw-r--r-- | modules/snoopy/FAQ | 14 | ||||
| -rw-r--r-- | modules/snoopy/NEWS | 61 | ||||
| -rw-r--r-- | modules/snoopy/Snoopy.class.php | 1250 | ||||
| -rw-r--r-- | modules/snoopy/TODO | 9 |
7 files changed, 1908 insertions, 0 deletions
diff --git a/modules/snoopy/AUTHORS b/modules/snoopy/AUTHORS new file mode 100644 index 00000000..dbbe3f4f --- /dev/null +++ b/modules/snoopy/AUTHORS @@ -0,0 +1,11 @@ +Monte Ohrt <monte@ispi.net> + - main Snoopy work + +Andrei Zmievski <andrei@ispi.net> + - miscellaneous fixes + - read timeout support + - file submission capability + +Gene Wood <gene_wood@users.sourceforge.net> + - bug fixes + - security fixes diff --git a/modules/snoopy/COPYING.lib b/modules/snoopy/COPYING.lib new file mode 100644 index 00000000..3b204400 --- /dev/null +++ b/modules/snoopy/COPYING.lib @@ -0,0 +1,458 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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(gene_wood) + - fixed BUG # 859711 : typo: http://snoopy.sourceforge.com (gene_wood) + - fixed BUG # 852993 : double urlencoding breaks redirect (gene_wood) + - added proxy user/pass support (Robert Zwink, Monte) + - fixed post data array problem (stefan, Monte) + +Version 1.01 +----------- + - fixed problem with PHP 4.3.2 and fread() (Monte) + +Version 1.0 +----------- + - added textarea to stripform functionality (Monte) + - fixed multiple cookie setting problem (Monte) + - fixed problem where extra text inside <frame src (Monte) + - fixed problem where extra text inside <a href (Monte) + - removed http request header from curl fetched + documents, not needed (Monte) + - added carriage return to newlines on headers (Monte) + - fixed bug with curl, removed single quotes + - fixed bug with curl and "&" in the URL + - added ability to post files. (Andrei) + +Version 0.94 +------------ + - Added fetchform() function + - Fixed misc issues with frames + - Added SSL support via cURL + - fixed bug with posting arrays of data + - added status variable for http status + +Version 0.93 +------------ + - fixed bug with hostname match in a redirect location header + - added $lastredirectaddr variable + +Version 0.92 +------------ + - fixed redirect bug with MS web server + - added ability to pass set cookies through redirects + - added ability to traverse html frames + +Version 0.91 +------------ + - fixed bug with return headers being overwritten. + Please read the NEWS file for important notes. (Monte) + +Version 0.9 +----------- + - added support for read timeouts (Andrei) + - standardized distribution (Andrei) + +Version 0.1e +------------ + - fixed bug in fetchlinks logic (Monte) + +Version 0.1d +------------ + - fixed redirect bug without fully qualified url (Monte) + +Version 0.1c +------------ + - fixed bug on submitting formvars after a redirect (Monte) + +Version 0.1b +------------ + - fixed bug to allow empty post vars on a submit (Monte) + +Version 0.1 +------------ + - initial release (Monte) diff --git a/modules/snoopy/FAQ b/modules/snoopy/FAQ new file mode 100644 index 00000000..89c251ae --- /dev/null +++ b/modules/snoopy/FAQ @@ -0,0 +1,14 @@ +Q: Why can't I fetch https pages? +A: Using Snoopy to fetch an https page requires curl. Check if curl is installed on your host. If curl is installed, it may be located in a different place than the default. By default Snoopy looks for curl in /usr/local/bin/curl. Run 'which curl' and find out your location. If it differs from the default, then you'll need to set the $snoopy->curl_path variable to the location of your curl installation. Here's an example of the code : + include "Snoopy.class.php"; + $snoopy = new Snoopy; + $snoopy->curl_path="/usr/bin/curl"; + +Q: where does the function preg_match_all come from? +A: PCRE functions in PHP 3.0.9 and later + +Q: I get the error: Warning: Wrong parameter count for fsockopen() +A: Upgrade your verion of PHP to 3.0.9 or later + +Q: Snoopy cuts of my results every time. What's wrong? +A: Upgrade your verion of PHP to 3.0.9 or later diff --git a/modules/snoopy/NEWS b/modules/snoopy/NEWS new file mode 100644 index 00000000..a2ae3d9b --- /dev/null +++ b/modules/snoopy/NEWS @@ -0,0 +1,61 @@ +RELEASE NOTE: v1.2.4 +October 22, 2008 + +https fetches were not properly escaping shell args for curl binary execution. This is fixed. + +RELEASE NOTE: v1.2.3 +November 7, 2005 + +A typo was introduced in 1.2.2 which broke the whole release. This has been fixed. +A couple small fixes have been implemented also. + +RELEASE NOTE: v1.2.2 +October 30, 2005 + +Fixed a bug with the bugfix for the security hole. + +RELEASE NOTE: v1.2.1 +October 24, 2005 + +Fixed a few outstanding bugs and a potential security hole. + +RELEASE NOTE: v1.2 +November 17, 2004 + +Fixed a number of outstanding bugs. + +RELEASE NOTE: v1.01 + +PHP fixed a bug with fread() which consequently broke the way Snoopy called it. This has been fixed. +Renamed Snoopy.class.inc to Snoopy.class.php for proper file extention. + +RELEASE NOTE: v1.0 + +Added fetchform() function for fetching form elements from an html page. +For SSL support, you must have cURL installed. see http://curl.haxx.se +for details. Snoopy does not use the cURL library fuctions within PHP, +as these are not stable as of this Snoopy release. +Fixed bug with posting arrays of data. +Added status variable to track http status. +Several other bug fixes, see Changelog. +RELEASE NOTE: v0.93 + +A bug was fixed with redirection headers not containing the hostname, doubling up the redirection location URL. + +There is also a new variable, $lastredirectaddr that contains the last redirection URL. + +RELEASE NOTE: v0.92 +March 9, 2000 + +A bug was fixed with redirection on MS web servers. Also, cookies are now passed through redirects. + +This release also adds the ability to traverse html framed pages. Just set $maxframes to the recursion depth you want to allow, and results are returned in $this->results as an array. See the README for an example. + +-Monte + +RELEASE NOTE: v0.91 +February 22, 2000 + +In previous versions of Snoopy, $this->header was an array containing key/value pairs of headers returned from fetched content, not including HTTP and GET headers. If a key value was the same, the old value was overwritten (Two Set-Cookie: headers for example). This was overcome by making $this->header a simple array containing every header returned. Therefore, it will now be up to the programmer to split these headers into key/value pairs if so desired. + +-Monte diff --git a/modules/snoopy/Snoopy.class.php b/modules/snoopy/Snoopy.class.php new file mode 100644 index 00000000..53116105 --- /dev/null +++ b/modules/snoopy/Snoopy.class.php @@ -0,0 +1,1250 @@ +<?php + +/************************************************* + +Snoopy - the PHP net client +Author: Monte Ohrt <monte@ispi.net> +Copyright (c): 1999-2008 New Digital Group, all rights reserved +Version: 1.2.4 + + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +You may contact the author of Snoopy by e-mail at: +monte@ohrt.com + +The latest version of Snoopy can be obtained from: +http://snoopy.sourceforge.net/ + +*************************************************/ + +class Snoopy +{ + /**** Public variables ****/ + + /* user definable vars */ + + var $host = "www.php.net"; // host name we are connecting to + var $port = 80; // port we are connecting to + var $proxy_host = ""; // proxy host to use + var $proxy_port = ""; // proxy port to use + var $proxy_user = ""; // proxy user to use + var $proxy_pass = ""; // proxy password to use + + var $agent = "Snoopy v1.2.4"; // agent we masquerade as + var $referer = ""; // referer info to pass + var $cookies = array(); // array of cookies to pass + // $cookies["username"]="joe"; + var $rawheaders = array(); // array of raw headers to send + // $rawheaders["Content-type"]="text/html"; + + var $maxredirs = 5; // http redirection depth maximum. 0 = disallow + var $lastredirectaddr = ""; // contains address of last redirected address + var $offsiteok = true; // allows redirection off-site + var $maxframes = 0; // frame content depth maximum. 0 = disallow + var $expandlinks = true; // expand links to fully qualified URLs. + // this only applies to fetchlinks() + // submitlinks(), and submittext() + var $passcookies = true; // pass set cookies back through redirects + // NOTE: this currently does not respect + // dates, domains or paths. + + var $user = ""; // user for http authentication + var $pass = ""; // password for http authentication + + // http accept types + var $accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*"; + + var $results = ""; // where the content is put + + var $error = ""; // error messages sent here + var $response_code = ""; // response code returned from server + var $headers = array(); // headers returned from server sent here + var $maxlength = 500000; // max return data length (body) + var $read_timeout = 0; // timeout on read operations, in seconds + // supported only since PHP 4 Beta 4 + // set to 0 to disallow timeouts + var $timed_out = false; // if a read operation timed out + var $status = 0; // http request status + + var $temp_dir = "/tmp"; // temporary directory that the webserver + // has permission to write to. + // under Windows, this should be C:\temp + + var $curl_path = "/usr/local/bin/curl"; + // Snoopy will use cURL for fetching + // SSL content if a full system path to + // the cURL binary is supplied here. + // set to false if you do not have + // cURL installed. See http://curl.haxx.se + // for details on installing cURL. + // Snoopy does *not* use the cURL + // library functions built into php, + // as these functions are not stable + // as of this Snoopy release. + + /**** Private variables ****/ + + var $_maxlinelen = 4096; // max line length (headers) + + var $_httpmethod = "GET"; // default http request method + var $_httpversion = "HTTP/1.0"; // default http request version + var $_submit_method = "POST"; // default submit method + var $_submit_type = "application/x-www-form-urlencoded"; // default submit type + var $_mime_boundary = ""; // MIME boundary for multipart/form-data submit type + var $_redirectaddr = false; // will be set if page fetched is a redirect + var $_redirectdepth = 0; // increments on an http redirect + var $_frameurls = array(); // frame src urls + var $_framedepth = 0; // increments on frame depth + + var $_isproxy = false; // set if using a proxy server + var $_fp_timeout = 30; // timeout for socket connection + +/*======================================================================*\ + Function: fetch + Purpose: fetch the contents of a web page + (and possibly other protocols in the + future like ftp, nntp, gopher, etc.) + Input: $URI the location of the page to fetch + Output: $this->results the output text from the fetch +\*======================================================================*/ + + function fetch($URI) + { + + //preg_match("|^([^:]+)://([^:/]+)(:[\d]+)*(.*)|",$URI,$URI_PARTS); + $URI_PARTS = parse_url($URI); + if (!empty($URI_PARTS["user"])) + $this->user = $URI_PARTS["user"]; + if (!empty($URI_PARTS["pass"])) + $this->pass = $URI_PARTS["pass"]; + if (empty($URI_PARTS["query"])) + $URI_PARTS["query"] = ''; + if (empty($URI_PARTS["path"])) + $URI_PARTS["path"] = ''; + + switch(strtolower($URI_PARTS["scheme"])) + { + case "http": + $this->host = $URI_PARTS["host"]; + if(!empty($URI_PARTS["port"])) + $this->port = $URI_PARTS["port"]; + if($this->_connect($fp)) + { + if($this->_isproxy) + { + // using proxy, send entire URI + $this->_httprequest($URI,$fp,$URI,$this->_httpmethod); + } + else + { + $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); + // no proxy, send only the path + $this->_httprequest($path, $fp, $URI, $this->_httpmethod); + } + + $this->_disconnect($fp); + + if($this->_redirectaddr) + { + /* url was redirected, check if we've hit the max depth */ + if($this->maxredirs > $this->_redirectdepth) + { + // only follow redirect if it's on this site, or offsiteok is true + if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) + { + /* follow the redirect */ + $this->_redirectdepth++; + $this->lastredirectaddr=$this->_redirectaddr; + $this->fetch($this->_redirectaddr); + } + } + } + + if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) + { + $frameurls = $this->_frameurls; + $this->_frameurls = array(); + + while(list(,$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) + return false; + if(function_exists("is_executable")) + if (!is_executable($this->curl_path)) + return false; + $this->host = $URI_PARTS["host"]; + if(!empty($URI_PARTS["port"])) + $this->port = $URI_PARTS["port"]; + if($this->_isproxy) + { + // using proxy, send entire URI + $this->_httpsrequest($URI,$URI,$this->_httpmethod); + } + else + { + $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); + // no proxy, send only the path + $this->_httpsrequest($path, $URI, $this->_httpmethod); + } + + if($this->_redirectaddr) + { + /* url was redirected, check if we've hit the max depth */ + if($this->maxredirs > $this->_redirectdepth) + { + // only follow redirect if it's on this site, or offsiteok is true + if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) + { + /* follow the redirect */ + $this->_redirectdepth++; + $this->lastredirectaddr=$this->_redirectaddr; + $this->fetch($this->_redirectaddr); + } + } + } + + if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) + { + $frameurls = $this->_frameurls; + $this->_frameurls = array(); + + while(list(,$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; + } + +/*======================================================================*\ + Function: submit + Purpose: submit an http form + Input: $URI the location to post the data + $formvars the formvars to use. + format: $formvars["var"] = "val"; + $formfiles an array of files to submit + format: $formfiles["var"] = "/dir/filename.ext"; + Output: $this->results the text output from the post +\*======================================================================*/ + + function submit($URI, $formvars="", $formfiles="") + { + unset($postdata); + + $postdata = $this->_prepare_post_body($formvars, $formfiles); + + $URI_PARTS = parse_url($URI); + if (!empty($URI_PARTS["user"])) + $this->user = $URI_PARTS["user"]; + if (!empty($URI_PARTS["pass"])) + $this->pass = $URI_PARTS["pass"]; + if (empty($URI_PARTS["query"])) + $URI_PARTS["query"] = ''; + if (empty($URI_PARTS["path"])) + $URI_PARTS["path"] = ''; + + switch(strtolower($URI_PARTS["scheme"])) + { + case "http": + $this->host = $URI_PARTS["host"]; + if(!empty($URI_PARTS["port"])) + $this->port = $URI_PARTS["port"]; + if($this->_connect($fp)) + { + if($this->_isproxy) + { + // using proxy, send entire URI + $this->_httprequest($URI,$fp,$URI,$this->_submit_method,$this->_submit_type,$postdata); + } + else + { + $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); + // no proxy, send only the path + $this->_httprequest($path, $fp, $URI, $this->_submit_method, $this->_submit_type, $postdata); + } + + $this->_disconnect($fp); + + if($this->_redirectaddr) + { + /* url was redirected, check if we've hit the max depth */ + if($this->maxredirs > $this->_redirectdepth) + { + if(!preg_match("|^".$URI_PARTS["scheme"]."://|", $this->_redirectaddr)) + $this->_redirectaddr = $this->_expandlinks($this->_redirectaddr,$URI_PARTS["scheme"]."://".$URI_PARTS["host"]); + + // only follow redirect if it's on this site, or offsiteok is true + if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) + { + /* follow the redirect */ + $this->_redirectdepth++; + $this->lastredirectaddr=$this->_redirectaddr; + if( strpos( $this->_redirectaddr, "?" ) > 0 ) + $this->fetch($this->_redirectaddr); // the redirect has changed the request method from post to get + else + $this->submit($this->_redirectaddr,$formvars, $formfiles); + } + } + } + + if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) + { + $frameurls = $this->_frameurls; + $this->_frameurls = array(); + + while(list(,$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) + return false; + if(function_exists("is_executable")) + if (!is_executable($this->curl_path)) + return false; + $this->host = $URI_PARTS["host"]; + if(!empty($URI_PARTS["port"])) + $this->port = $URI_PARTS["port"]; + if($this->_isproxy) + { + // using proxy, send entire URI + $this->_httpsrequest($URI, $URI, $this->_submit_method, $this->_submit_type, $postdata); + } + else + { + $path = $URI_PARTS["path"].($URI_PARTS["query"] ? "?".$URI_PARTS["query"] : ""); + // no proxy, send only the path + $this->_httpsrequest($path, $URI, $this->_submit_method, $this->_submit_type, $postdata); + } + + if($this->_redirectaddr) + { + /* url was redirected, check if we've hit the max depth */ + if($this->maxredirs > $this->_redirectdepth) + { + if(!preg_match("|^".$URI_PARTS["scheme"]."://|", $this->_redirectaddr)) + $this->_redirectaddr = $this->_expandlinks($this->_redirectaddr,$URI_PARTS["scheme"]."://".$URI_PARTS["host"]); + + // only follow redirect if it's on this site, or offsiteok is true + if(preg_match("|^http://".preg_quote($this->host)."|i",$this->_redirectaddr) || $this->offsiteok) + { + /* follow the redirect */ + $this->_redirectdepth++; + $this->lastredirectaddr=$this->_redirectaddr; + if( strpos( $this->_redirectaddr, "?" ) > 0 ) + $this->fetch($this->_redirectaddr); // the redirect has changed the request method from post to get + else + $this->submit($this->_redirectaddr,$formvars, $formfiles); + } + } + } + + if($this->_framedepth < $this->maxframes && count($this->_frameurls) > 0) + { + $frameurls = $this->_frameurls; + $this->_frameurls = array(); + + while(list(,$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; + } + +/*======================================================================*\ + Function: fetchlinks + Purpose: fetch the links from a web page + Input: $URI where you are fetching from + Output: $this->results an array of the URLs +\*======================================================================*/ + + function fetchlinks($URI) + { + if ($this->fetch($URI)) + { + if($this->lastredirectaddr) + $URI = $this->lastredirectaddr; + if(is_array($this->results)) + { + for($x=0;$x<count($this->results);$x++) + $this->results[$x] = $this->_striplinks($this->results[$x]); + } + else + $this->results = $this->_striplinks($this->results); + + if($this->expandlinks) + $this->results = $this->_expandlinks($this->results, $URI); + return true; + } + else + return false; + } + +/*======================================================================*\ + Function: fetchform + Purpose: fetch the form elements from a web page + Input: $URI where you are fetching from + Output: $this->results the resulting html form +\*======================================================================*/ + + function fetchform($URI) + { + + if ($this->fetch($URI)) + { + + if(is_array($this->results)) + { + for($x=0;$x<count($this->results);$x++) + $this->results[$x] = $this->_stripform($this->results[$x]); + } + else + $this->results = $this->_stripform($this->results); + + return true; + } + else + return false; + } + + +/*======================================================================*\ + Function: fetchtext + Purpose: fetch the text from a web page, stripping the links + Input: $URI where you are fetching from + Output: $this->results the text from the web page +\*======================================================================*/ + + function fetchtext($URI) + { + if($this->fetch($URI)) + { + if(is_array($this->results)) + { + for($x=0;$x<count($this->results);$x++) + $this->results[$x] = $this->_striptext($this->results[$x]); + } + else + $this->results = $this->_striptext($this->results); + return true; + } + else + return false; + } + +/*======================================================================*\ + Function: submitlinks + Purpose: grab links from a form submission + Input: $URI where you are submitting from + Output: $this->results an array of the links from the post +\*======================================================================*/ + + function submitlinks($URI, $formvars="", $formfiles="") + { + if($this->submit($URI,$formvars, $formfiles)) + { + if($this->lastredirectaddr) + $URI = $this->lastredirectaddr; + if(is_array($this->results)) + { + for($x=0;$x<count($this->results);$x++) + { + $this->results[$x] = $this->_striplinks($this->results[$x]); + if($this->expandlinks) + $this->results[$x] = $this->_expandlinks($this->results[$x],$URI); + } + } + else + { + $this->results = $this->_striplinks($this->results); + if($this->expandlinks) + $this->results = $this->_expandlinks($this->results,$URI); + } + return true; + } + else + return false; + } + +/*======================================================================*\ + Function: submittext + Purpose: grab text from a form submission + Input: $URI where you are submitting from + Output: $this->results the text from the web page +\*======================================================================*/ + + function submittext($URI, $formvars = "", $formfiles = "") + { + if($this->submit($URI,$formvars, $formfiles)) + { + if($this->lastredirectaddr) + $URI = $this->lastredirectaddr; + if(is_array($this->results)) + { + for($x=0;$x<count($this->results);$x++) + { + $this->results[$x] = $this->_striptext($this->results[$x]); + if($this->expandlinks) + $this->results[$x] = $this->_expandlinks($this->results[$x],$URI); + } + } + else + { + $this->results = $this->_striptext($this->results); + if($this->expandlinks) + $this->results = $this->_expandlinks($this->results,$URI); + } + return true; + } + else + return false; + } + + + +/*======================================================================*\ + Function: set_submit_multipart + Purpose: Set the form submission content type to + multipart/form-data +\*======================================================================*/ + function set_submit_multipart() + { + $this->_submit_type = "multipart/form-data"; + } + + +/*======================================================================*\ + Function: set_submit_normal + Purpose: Set the form submission content type to + application/x-www-form-urlencoded +\*======================================================================*/ + function set_submit_normal() + { + $this->_submit_type = "application/x-www-form-urlencoded"; + } + + + + +/*======================================================================*\ + Private functions +\*======================================================================*/ + + +/*======================================================================*\ + Function: _striplinks + Purpose: strip the hyperlinks from an html document + Input: $document document to strip. + Output: $match an array of the links +\*======================================================================*/ + + function _striplinks($document) + { + preg_match_all("'<\s*a\s.*?href\s*=\s* # find <a href= + ([\"\'])? # find single or double quote + (?(1) (.*?)\\1 | ([^\s\>]+)) # if quote found, match up to next matching + # quote, otherwise match up to next space + 'isx",$document,$links); + + + // catenate the non-empty matches from the conditional subpattern + + 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 + "'&(quot|#34|#034|#x22);'i", // replace html entities + "'&(amp|#38|#038|#x26);'i", // added hexadecimal values + "'&(lt|#60|#060|#x3c);'i", + "'&(gt|#62|#062|#x3e);'i", + "'&(nbsp|#160|#xa0);'i", + "'&(iexcl|#161);'i", + "'&(cent|#162);'i", + "'&(pound|#163);'i", + "'&(copy|#169);'i", + "'&(reg|#174);'i", + "'&(deg|#176);'i", + "'&(#39|#039|#x27);'", + "'&(euro|#8364);'i", // europe + "'&a(uml|UML);'", // german + "'&o(uml|UML);'", + "'&u(uml|UML);'", + "'&A(uml|UML);'", + "'&O(uml|UML);'", + "'&U(uml|UML);'", + "'ß'i", + ); + $replace = array( "", + "", + "\\1", + "\"", + "&", + "<", + ">", + " ", + chr(161), + chr(162), + chr(163), + chr(169), + chr(174), + chr(176), + chr(39), + chr(128), + "ä", + "ö", + "ü", + "Ä", + "Ö", + "Ü", + "ß", + ); + + $text = preg_replace($search,$replace,$document); + + return $text; + } + +/*======================================================================*\ + Function: _expandlinks + Purpose: expand each link into a fully qualified URL + Input: $links the links to qualify + $URI the full URI to get the base from + Output: $expandedLinks the expanded links +\*======================================================================*/ + + function _expandlinks($links,$URI) + { + + preg_match("/^[^\?]+/",$URI,$match); + + $match = preg_replace("|/[^\/\.]+\.[^\/\.]+$|","",$match[0]); + $match = preg_replace("|/$|","",$match); + $match_part = parse_url($match); + $match_root = + $match_part["scheme"]."://".$match_part["host"]; + + $search = array( "|^http://".preg_quote($this->host)."|i", + "|^(\/)|i", + "|^(?!http://)(?!mailto:)|i", + "|/\./|", + "|/[^\/]+/\.\./|" + ); + + $replace = array( "", + $match_root."/", + $match."/", + "/", + "/" + ); + + $expandedLinks = preg_replace($search,$replace,$links); + + return $expandedLinks; + } + +/*======================================================================*\ + Function: _httprequest + Purpose: go get the http data from the server + Input: $url the url to fetch + $fp the current open file pointer + $URI the full URI + $body body contents to send if any (POST) + Output: +\*======================================================================*/ + + function _httprequest($url,$fp,$URI,$http_method,$content_type="",$body="") + { + $cookie_headers = ''; + if($this->passcookies && $this->_redirectaddr) + $this->setcookies(); + + $URI_PARTS = parse_url($URI); + if(empty($url)) + $url = "/"; + $headers = $http_method." ".$url." ".$this->_httpversion."\r\n"; + if(!empty($this->agent)) + $headers .= "User-Agent: ".$this->agent."\r\n"; + if(!empty($this->host) && !isset($this->rawheaders['Host'])) { + $headers .= "Host: ".$this->host; + if(!empty($this->port)) + $headers .= ":".$this->port; + $headers .= "\r\n"; + } + if(!empty($this->accept)) + $headers .= "Accept: ".$this->accept."\r\n"; + if(!empty($this->referer)) + $headers .= "Referer: ".$this->referer."\r\n"; + if(!empty($this->cookies)) + { + if(!is_array($this->cookies)) + $this->cookies = (array)$this->cookies; + + reset($this->cookies); + if ( count($this->cookies) > 0 ) { + $cookie_headers .= 'Cookie: '; + foreach ( $this->cookies as $cookieKey => $cookieVal ) { + $cookie_headers .= $cookieKey."=".urlencode($cookieVal)."; "; + } + $headers .= substr($cookie_headers,0,-2) . "\r\n"; + } + } + if(!empty($this->rawheaders)) + { + if(!is_array($this->rawheaders)) + $this->rawheaders = (array)$this->rawheaders; + 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.":".$this->pass)."\r\n"; + + //add proxy auth headers + if(!empty($this->proxy_user)) + $headers .= 'Proxy-Authorization: ' . 'Basic ' . base64_encode($this->proxy_user . ':' . $this->proxy_pass)."\r\n"; + + + $headers .= "\r\n"; + + // set the read timeout if needed + if ($this->read_timeout > 0) + socket_set_timeout($fp, $this->read_timeout); + $this->timed_out = false; + + fwrite($fp,$headers.$body,strlen($headers.$body)); + + $this->_redirectaddr = false; + unset($this->headers); + + while($currentHeader = fgets($fp,$this->_maxlinelen)) + { + if ($this->read_timeout > 0 && $this->_check_timeout($fp)) + { + $this->status=-100; + return false; + } + + if($currentHeader == "\r\n") + break; + + // if a header begins with Location: or URI:, set the redirect + if(preg_match("/^(Location:|URI:)/i",$currentHeader)) + { + // get URL portion of the redirect + preg_match("/^(Location:|URI:)[ ]+(.*)/i",chop($currentHeader),$matches); + // look for :// in the Location header to see if hostname is included + if(!preg_match("|\:\/\/|",$matches[2])) + { + // no host in the path, so prepend + $this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port; + // eliminate double slash + if(!preg_match("|^/|",$matches[2])) + $this->_redirectaddr .= "/".$matches[2]; + else + $this->_redirectaddr .= $matches[2]; + } + else + $this->_redirectaddr = $matches[2]; + } + + if(preg_match("|^HTTP/|",$currentHeader)) + { + if(preg_match("|^HTTP/[^\s]*\s(.*?)\s|",$currentHeader, $status)) + { + $this->status= $status[1]; + } + $this->response_code = $currentHeader; + } + + $this->headers[] = $currentHeader; + } + + $results = ''; + do { + $_data = fread($fp, $this->maxlength); + if (strlen($_data) == 0) { + break; + } + $results .= $_data; + } while(true); + + if ($this->read_timeout > 0 && $this->_check_timeout($fp)) + { + $this->status=-100; + return false; + } + + // check if there is a a redirect meta tag + + if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]*URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match)) + + { + $this->_redirectaddr = $this->_expandlinks($match[1],$URI); + } + + // have we hit our frame depth and is there frame src to fetch? + if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match)) + { + $this->results[] = $results; + for($x=0; $x<count($match[1]); $x++) + $this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host); + } + // have we already fetched framed content? + elseif(is_array($this->results)) + $this->results[] = $results; + // no framed content + else + $this->results = $results; + + return true; + } + +/*======================================================================*\ + Function: _httpsrequest + Purpose: go get the https data from the server using curl + Input: $url the url to fetch + $URI the full URI + $body body contents to send if any (POST) + Output: +\*======================================================================*/ + + function _httpsrequest($url,$URI,$http_method,$content_type="",$body="") + { + if($this->passcookies && $this->_redirectaddr) + $this->setcookies(); + + $headers = array(); + + $URI_PARTS = parse_url($URI); + if(empty($url)) + $url = "/"; + // GET ... header not needed for curl + //$headers[] = $http_method." ".$url." ".$this->_httpversion; + if(!empty($this->agent)) + $headers[] = "User-Agent: ".$this->agent; + if(!empty($this->host)) + if(!empty($this->port)) + $headers[] = "Host: ".$this->host.":".$this->port; + else + $headers[] = "Host: ".$this->host; + if(!empty($this->accept)) + $headers[] = "Accept: ".$this->accept; + if(!empty($this->referer)) + $headers[] = "Referer: ".$this->referer; + if(!empty($this->cookies)) + { + if(!is_array($this->cookies)) + $this->cookies = (array)$this->cookies; + + reset($this->cookies); + if ( count($this->cookies) > 0 ) { + $cookie_str = 'Cookie: '; + foreach ( $this->cookies as $cookieKey => $cookieVal ) { + $cookie_str .= $cookieKey."=".urlencode($cookieVal)."; "; + } + $headers[] = substr($cookie_str,0,-2); + } + } + if(!empty($this->rawheaders)) + { + if(!is_array($this->rawheaders)) + $this->rawheaders = (array)$this->rawheaders; + 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++) { + $safer_header = strtr( $headers[$curr_header], "\"", " " ); + $cmdline_params .= " -H \"".$safer_header."\""; + } + + if(!empty($body)) + $cmdline_params .= " -d \"$body\""; + + if($this->read_timeout > 0) + $cmdline_params .= " -m ".$this->read_timeout; + + $headerfile = tempnam($temp_dir, "sno"); + + exec($this->curl_path." -k -D \"$headerfile\"".$cmdline_params." \"".escapeshellcmd($URI)."\"",$results,$return); + + if($return) + { + $this->error = "Error: cURL could not retrieve the document, error $return."; + return false; + } + + + $results = implode("\r\n",$results); + + $result_headers = file("$headerfile"); + + $this->_redirectaddr = false; + unset($this->headers); + + for($currentHeader = 0; $currentHeader < count($result_headers); $currentHeader++) + { + + // if a header begins with Location: or URI:, set the redirect + if(preg_match("/^(Location: |URI: )/i",$result_headers[$currentHeader])) + { + // get URL portion of the redirect + preg_match("/^(Location: |URI:)\s+(.*)/",chop($result_headers[$currentHeader]),$matches); + // look for :// in the Location header to see if hostname is included + if(!preg_match("|\:\/\/|",$matches[2])) + { + // no host in the path, so prepend + $this->_redirectaddr = $URI_PARTS["scheme"]."://".$this->host.":".$this->port; + // eliminate double slash + if(!preg_match("|^/|",$matches[2])) + $this->_redirectaddr .= "/".$matches[2]; + else + $this->_redirectaddr .= $matches[2]; + } + else + $this->_redirectaddr = $matches[2]; + } + + if(preg_match("|^HTTP/|",$result_headers[$currentHeader])) + $this->response_code = $result_headers[$currentHeader]; + + $this->headers[] = $result_headers[$currentHeader]; + } + + // check if there is a a redirect meta tag + + if(preg_match("'<meta[\s]*http-equiv[^>]*?content[\s]*=[\s]*[\"\']?\d+;[\s]*URL[\s]*=[\s]*([^\"\']*?)[\"\']?>'i",$results,$match)) + { + $this->_redirectaddr = $this->_expandlinks($match[1],$URI); + } + + // have we hit our frame depth and is there frame src to fetch? + if(($this->_framedepth < $this->maxframes) && preg_match_all("'<frame\s+.*src[\s]*=[\'\"]?([^\'\"\>]+)'i",$results,$match)) + { + $this->results[] = $results; + for($x=0; $x<count($match[1]); $x++) + $this->_frameurls[] = $this->_expandlinks($match[1][$x],$URI_PARTS["scheme"]."://".$this->host); + } + // have we already fetched framed content? + elseif(is_array($this->results)) + $this->results[] = $results; + // no framed content + else + $this->results = $results; + + unlink("$headerfile"); + + return true; + } + +/*======================================================================*\ + Function: setcookies() + Purpose: set cookies for a redirection +\*======================================================================*/ + + function setcookies() + { + for($x=0; $x<count($this->headers); $x++) + { + if(preg_match('/^set-cookie:[\s]+([^=]+)=([^;]+)/i', $this->headers[$x],$match)) + $this->cookies[$match[1]] = urldecode($match[2]); + } + } + + +/*======================================================================*\ + Function: _check_timeout + Purpose: checks whether timeout has occurred + Input: $fp file pointer +\*======================================================================*/ + + function _check_timeout($fp) + { + if ($this->read_timeout > 0) { + $fp_status = socket_get_status($fp); + if ($fp_status["timed_out"]) { + $this->timed_out = true; + return true; + } + } + return false; + } + +/*======================================================================*\ + Function: _connect + Purpose: make a socket connection + Input: $fp file pointer +\*======================================================================*/ + + function _connect(&$fp) + { + if(!empty($this->proxy_host) && !empty($this->proxy_port)) + { + $this->_isproxy = true; + + $host = $this->proxy_host; + $port = $this->proxy_port; + } + else + { + $host = $this->host; + $port = $this->port; + } + + $this->status = 0; + + if($fp = fsockopen( + $host, + $port, + $errno, + $errstr, + $this->_fp_timeout + )) + { + // socket connection succeeded + + return true; + } + else + { + // socket connection failed + $this->status = $errno; + switch($errno) + { + case -3: + $this->error="socket creation failed (-3)"; + case -4: + $this->error="dns lookup failure (-4)"; + case -5: + $this->error="connection refused or timed out (-5)"; + default: + $this->error="connection failed (".$errno.")"; + } + return false; + } + } +/*======================================================================*\ + Function: _disconnect + Purpose: disconnect a socket connection + Input: $fp file pointer +\*======================================================================*/ + + function _disconnect($fp) + { + return(fclose($fp)); + } + + +/*======================================================================*\ + Function: _prepare_post_body + Purpose: Prepare post body according to encoding type + Input: $formvars - form variables + $formfiles - form upload files + Output: post body +\*======================================================================*/ + + function _prepare_post_body($formvars, $formfiles) + { + settype($formvars, "array"); + settype($formfiles, "array"); + $postdata = ''; + + if (count($formvars) == 0 && count($formfiles) == 0) + return; + + switch ($this->_submit_type) { + case "application/x-www-form-urlencoded": + reset($formvars); + while(list($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; + } +} + +?> diff --git a/modules/snoopy/TODO b/modules/snoopy/TODO new file mode 100644 index 00000000..d46738c1 --- /dev/null +++ b/modules/snoopy/TODO @@ -0,0 +1,9 @@ +* fetch other types of protocols such as ftp, nntp, gopher, etc. +* post forms with http file upload (I didn't have this need, + but it should be fairly straightforward) +* expand links, image tags, and form actions to fully + qualified URLs + +Bugs +---- +* none known |