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-rw-r--r--packages/squidGuard/sgerror.php241
1 files changed, 215 insertions, 26 deletions
diff --git a/packages/squidGuard/sgerror.php b/packages/squidGuard/sgerror.php
index 302126fb..7e3b5c6c 100644
--- a/packages/squidGuard/sgerror.php
+++ b/packages/squidGuard/sgerror.php
@@ -1,51 +1,240 @@
<?php
+$page_info = <<<EOD
# ----------------------------------------------------------------------------------------------------------------------
-# Error page generator
+# SquidGuard error page generator
# (C)2006-2007 Serg Dvoriancev
# ----------------------------------------------------------------------------------------------------------------------
-# .php?url='redirect url'
+# This programm processed redirection to specified URL or generated error page for standart HTTP error code.
+# Redirection supported http and https protocols.
# ----------------------------------------------------------------------------------------------------------------------
-# Forbidden 403
-# Not found 404
-# 410
-# Internal Error 500
-# Moved 301
-# Found 302
+# 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');
-header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
+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 = $_POST['url'];
+ $url = trim($_POST['url']);
$msg = $_POST['msg'];
-} else {
- $url = $_GET['url'];
+ $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) {
- if (strstr($url, "301")) header("HTTP/1.0 301");
- elseif (strstr($url, "302")) header("HTTP/1.0 302");
- elseif (strstr($url, "403")) header("HTTP/1.0 403");
- elseif (strstr($url, "404")) header("HTTP/1.0 404");
- elseif (strstr($url, "410")) header("HTTP/1.0 410");
-# elseif (strstr($url, "410")) header("HTTP/1.0 500");
- else {
- #
+ $err_id = 0;
+
+ // check error code
+ foreach ($err_code as $key => $val) {
+ if (strpos(strtolower($url), strval($key)) === 0) {
+ $err_id = $key;
+ break;
+ }
+ }
+
+ # blank page
+ if ($url === 'blank') {
+ echo get_page('');
+ }
+ # blank image
+ elseif ($url === TAG_BLANK_IMG) {
+ # --------------------------------------------------------------
+ # return blank image
+ # --------------------------------------------------------------
+ header("Content-Type: image/gif;"); // charset=windows-1251");
+ echo GIF_BODY;
+ }
+ # error code
+ elseif ($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", '', 301);
+ header("Location: $url", '', 302);
}
- exit();
-} else {
- header("HTTP/1.0 410");
- exit();
+ // 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;
+ $str = Array();
+
+ header("HTTP/1.1 " . $err_code[$er_code_id]);
+
+ $str[] = '<html>';
+ $str[] = '<body>';
+ $str[] = '<h3>Request denied by pfSense 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);
}
?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 07:05:26 +0000