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author | Luiz G. Costa <luizgustavo@luizgustavo.pro.br> | 2013-09-26 15:50:34 -0300 |
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committer | Luiz G. Costa <luizgustavo@luizgustavo.pro.br> | 2013-09-26 15:50:34 -0300 |
commit | f1d24481b1af528e74d4c96c6af2c56e3b976a69 (patch) | |
tree | f95a9864abe569c74da0beaf4559e1a5c1c988d0 /config/squidGuard-devel/sgerror.php | |
parent | 2b744d1d50383d698e198aa5e8f65b95c7399c25 (diff) | |
download | pfsense-packages-f1d24481b1af528e74d4c96c6af2c56e3b976a69.tar.gz pfsense-packages-f1d24481b1af528e74d4c96c6af2c56e3b976a69.tar.bz2 pfsense-packages-f1d24481b1af528e74d4c96c6af2c56e3b976a69.zip |
Add package Squidguard 1.5 beta option
Diffstat (limited to 'config/squidGuard-devel/sgerror.php')
-rw-r--r-- | config/squidGuard-devel/sgerror.php | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/config/squidGuard-devel/sgerror.php b/config/squidGuard-devel/sgerror.php new file mode 100644 index 00000000..e1e49385 --- /dev/null +++ b/config/squidGuard-devel/sgerror.php @@ -0,0 +1,292 @@ +<?php +include "globals.inc"; +include "config.inc"; +$page_info = <<<EOD +# ---------------------------------------------------------------------------------------------------------------------- +# SquidGuard error page generator +# (C)2006-2007 Serg Dvoriancev +# ---------------------------------------------------------------------------------------------------------------------- +# This programm processed redirection to specified URL or generated error page for standart HTTP error code. +# Redirection supported http and https protocols. +# ---------------------------------------------------------------------------------------------------------------------- +# Format: +# sgerror.php?url=[http://myurl]or[https://myurl]or[error_code[space_code]output-message][incoming SquidGuard variables] +# Incoming SquidGuard variables: +# a=client_address +# n=client_name +# i=client_user +# s=client_group +# t=target_group +# u=client_url +# Example: +# sgerror.php?url=http://myurl.com&a=..&n=..&i=..&s=..&t=..&u=.. +# sgerror.php?url=https://myurl.com&a=..&n=..&i=..&s=..&t=..&u=.. +# sgerror.php?url=404%20output-message&a=..&n=..&i=..&s=..&t=..&u=.. +# ---------------------------------------------------------------------------------------------------------------------- +# Tags: +# myurl and output messages can include Tags +# [a] - client address +# [n] - client name +# [i] - client user +# [s] - client group +# [t] - target group +# [u] - client url +# Example: +# sgerror.php?url=401 Unauthorized access to URL [u] for client [n] +# sgerror.php?url=http://my_error_page.php?cladr=%5Ba%5D&clname=%5Bn%5D // %5b=[ %d=] +# ---------------------------------------------------------------------------------------------------------------------- +# Special Tags: +# blank - get blank page +# blank_img - get one-pixel transparent image (for replace banners and etc.) +# Example: +# sgerror.php?url=blank +# sgerror.php?url=blank_img +# ---------------------------------------------------------------------------------------------------------------------- +EOD; + +define('ACTION_URL', 'url'); +define('ACTION_RES', 'res'); +define('ACTION_MSG', 'msg'); + +define('TAG_BLANK', 'blank'); +define('TAG_BLANK_IMG', 'blank_img'); + +# ---------------------------------------------------------------------------------------------------------------------- +# ?url=EMPTY_IMG +# Use this options for replace baners/ads to transparent picture. Thisbetter for viewing. +# ---------------------------------------------------------------------------------------------------------------------- +# NULL GIF file +# HEX: 47 49 46 38 39 61 - - - +# SYM: G I F 8 9 a 01 00 | 01 00 80 00 00 FF FF FF | 00 00 00 2C 00 00 00 00 | 01 00 01 00 00 02 02 44 | 01 00 3B +# ---------------------------------------------------------------------------------------------------------------------- +define(GIF_BODY, "GIF89a\x01\x00\x01\x00\x80\x00\x00\xFF\xFF\xFF\x00\x00\x00\x2C\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x44\x01\x00\x3B"); + +$url = ''; +$msg = ''; +$cl = Array(); // squidGuard variables: %a %n %i %s %t %u +$err_code = array(); + +$err_code[301] = "301 Moved Permanently"; +$err_code[302] = "302 Found"; +$err_code[303] = "303 See Other"; +$err_code[305] = "305 Use Proxy"; + +$err_code[400] = "400 Bad Request"; +$err_code[401] = "401 Unauthorized"; +$err_code[402] = "402 Payment Required"; +$err_code[403] = "403 Forbidden"; +$err_code[404] = "404 Not Found"; +$err_code[405] = "405 Method Not Allowed"; +$err_code[406] = "406 Not Acceptable"; +$err_code[407] = "407 Proxy Authentication Required"; +$err_code[408] = "408 Request Time-out"; +$err_code[409] = "409 Conflict"; +$err_code[410] = "410 Gone"; +$err_code[411] = "411 Length Required"; +$err_code[412] = "412 Precondition Failed"; +$err_code[413] = "413 Request Entity Too Large"; +$err_code[414] = "414 Request-URI Too Large"; +$err_code[415] = "415 Unsupported Media Type"; +$err_code[416] = "416 Requested range not satisfiable"; +$err_code[417] = "417 Expectation Failed"; + +$err_code[500] = "500 Internal Server Error"; +$err_code[501] = "501 Not Implemented"; +$err_code[502] = "502 Bad Gateway"; +$err_code[503] = "503 Service Unavailable"; +$err_code[504] = "504 Gateway Time-out"; +$err_code[505] = "505 HTTP Version not supported"; + +# ---------------------------------------------------------------------------------------------------------------------- +# check arg's +# ---------------------------------------------------------------------------------------------------------------------- + +if (count($_POST)) { + $url = trim($_POST['url']); + $msg = $_POST['msg']; + $cl['a'] = $_POST['a']; + $cl['n'] = $_POST['n']; + $cl['i'] = $_POST['i']; + $cl['s'] = $_POST['s']; + $cl['t'] = $_POST['t']; + $cl['u'] = $_POST['u']; +} +elseif (count($_GET)) { + $url = trim($_GET['url']); + $msg = $_GET['msg']; + $cl['a'] = $_GET['a']; + $cl['n'] = $_GET['n']; + $cl['i'] = $_GET['i']; + $cl['s'] = $_GET['s']; + $cl['t'] = $_GET['t']; + $cl['u'] = $_GET['u']; +} +else { + # Show 'About page' + echo get_page(get_about()); + exit(); +} + +# ---------------------------------------------------------------------------------------------------------------------- +# url's +# ---------------------------------------------------------------------------------------------------------------------- +if ($url) { + $err_id = 0; + + // check error code + foreach ($err_code as $key => $val) { + if (strpos(strtolower($url), strval($key)) === 0) { + $err_id = $key; + break; + } + } + + # blank page + if ($url === TAG_BLANK) { + echo get_page(''); + } + # blank image + elseif ($url === TAG_BLANK_IMG) { + $msg = trim($msg); + if(strpos($msg, "maxlen_") !== false) { + $maxlen = intval(trim(str_replace("maxlen_", "", $url))); + filter_by_image_size($cl['u'], $maxlen); + exit(); + } + else { + # -------------------------------------------------------------- + # return blank image + # -------------------------------------------------------------- + header("Content-Type: image/gif;"); // charset=windows-1251"); + echo GIF_BODY; + } + } + # error code + elseif ($err_id !== 0) { + $er_msg = strstr($_GET['url'], ' '); + echo get_error_page($err_id, $er_msg); + } + # redirect url + elseif ((strpos(strtolower($url), "http://") === 0) or (strpos(strtolower($url), "https://") === 0)) { + # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + # redirect to specified url + # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + header("HTTP/1.0"); + header("Location: $url", '', 302); + } + // error arguments + else { + echo get_page("sgerror: error arguments $url"); + } +} +else { + echo get_page($_SERVER['QUERY_STRING']); //$url . implode(" ", $_GET)); +# echo get_error_page(500); +} + +# ~~~~~~~~~~ +# Exit +# ~~~~~~~~~~ +exit(); + +# ---------------------------------------------------------------------------------------------------------------------- +# functions +# ---------------------------------------------------------------------------------------------------------------------- +function get_page($body) { + $str = Array(); + $str[] = '<html>'; + $str[] = "<body>\n$body\n</body>"; + $str[] = '</html>'; + return implode("\n", $str); +} + +# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +# IE displayed self-page, if them size > 1024 +# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +function get_error_page($er_code_id, $err_msg='') { + global $err_code; + global $cl; + global $g; + global $config; + $str = Array(); + + header("HTTP/1.1 " . $err_code[$er_code_id]); + + $str[] = '<html>'; + $str[] = '<body>'; + if ($config['installedpackages']['squidguarddefault']['config'][0]['deniedmessage']) { + $str[] = "<h3>{$config['installedpackages']['squidguarddefault']['config'][0]['deniedmessage']}: {$err_code[$er_code_id]}</h3>"; + } else { + $str[] = "<h3>Request denied by {$g['product_name']} proxy: {$err_code[$er_code_id]}</h3>"; + } + if ($err_msg) $str[] = "<b> Reason: </b> $err_msg"; + $str[] = '<hr size="1" noshade>'; + if ($cl['a']) $str[] = "<b> Client address: </b> {$cl['a']} <br>"; + if ($cl['n']) $str[] = "<b> Client name: </b> {$cl['n']} <br>"; + if ($cl['i']) $str[] = "<b> Client user: </b> {$cl['i']} <br>"; + if ($cl['s']) $str[] = "<b> Client group: </b> {$cl['s']} <br>"; + if ($cl['t']) $str[] = "<b> Target group: </b> {$cl['t']} <br>"; + if ($cl['u']) $str[] = "<b> URL: </b> {$cl['u']} <br>"; + $str[] = '<hr size="1" noshade>'; + $str[] = "</body>"; + $str[] = "</html>"; + + return implode("\n", $str); +} + +function get_about() { + global $err_code; + global $page_info; + $str = Array(); + + // about info + $s = str_replace("\n", "<br>", $page_info); + $str[] = $s; + $str[] = "<br>"; + + $str[] = '<table>'; + $str[] = ' <b>HTTP error codes (ERROR_CODE):</th></tr>'; + foreach($err_code as $val) { + $str []= "<tr><td>$val"; + } + $str[] = '</table>'; + + return implode("\n", $str); +} + +function filter_by_image_size($url, $val_size) { + + # load url header + $ch = curl_init(); + curl_setopt($ch, CURLOPT_URL, $url); + curl_setopt($ch, CURLOPT_HEADER, 1); + curl_setopt($ch, CURLOPT_NOBODY, 1); + curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); + $hd = curl_exec($ch); + curl_close($ch); + + $size = 0; + $SKEY = "content-length:"; + $s_tmp = strtolower($hd); + $s_tmp = str_replace("\n", " ", $s_tmp); # replace all "\n" + if (strpos($s_tmp, $SKEY) !== false) { + $s_tmp = trim(substr($s_tmp, strpos($s_tmp, $SKEY) + strlen($SKEY))); + $s_tmp = trim(substr($s_tmp, 0, strpos($s_tmp, " "))); + if (is_numeric($s_tmp)) + $size = intval($s_tmp); + else $size = 0; + } + + # === check url type and content size === + # redirect to specified url + if (($size !== 0) && ($size < $val_size)) { + header("HTTP/1.0"); + header("Location: $url", '', 302); + } + # return blank image + else { + header("Content-Type: image/gif;"); + echo GIF_BODY; + } +} +?>
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