<?php
-// $Id: spam.php,v 1.183 2007/06/16 13:50:30 henoheno Exp $
-// Copyright (C) 2006-2007 PukiWiki Developers Team
+// $Id: spam.php,v 1.220 2011/01/24 14:46:45 henoheno Exp $
+// Copyright (C) 2006-2009 PukiWiki Developers Team
// License: GPL v2 or (at your option) any later version
//
// Functions for Concept-work of spam-uri metrics
//
// (PHP 4 >= 4.3.0): preg_match_all(PREG_OFFSET_CAPTURE): $method['uri_XXX'] related feature
-if (! defined('SPAM_INI_FILE')) define('SPAM_INI_FILE', 'spam.ini.php');
-// ---------------------
-// Compat etc
-
-// (PHP 4 >= 4.2.0): var_export(): mail-reporting and dump related
-if (! function_exists('var_export')) {
- function var_export() {
- return 'var_export() is not found on this server' . "\n";
- }
-}
-
-// (PHP 4 >= 4.2.0): preg_grep() enables invert option
-function preg_grep_invert($pattern = '//', $input = array())
-{
- static $invert;
- if (! isset($invert)) $invert = defined('PREG_GREP_INVERT');
-
- if ($invert) {
- return preg_grep($pattern, $input, PREG_GREP_INVERT);
- } else {
- $result = preg_grep($pattern, $input);
- if ($result) {
- return array_diff($input, preg_grep($pattern, $input));
- } else {
- return $input;
- }
- }
-}
-
-// ----
-
-// Very roughly, shrink the lines of var_export()
-// NOTE: If the same data exists, it must be corrupted.
-function var_export_shrink($expression, $return = FALSE, $ignore_numeric_keys = FALSE)
-{
- $result = var_export($expression, TRUE);
-
- $result = preg_replace(
- // Remove a newline and spaces
- '# => \n *array \(#', ' => array (',
- $result
- );
-
- if ($ignore_numeric_keys) {
- $result =preg_replace(
- // Remove numeric keys
- '#^( *)[0-9]+ => #m', '$1',
- $result
- );
- }
-
- if ($return) {
- return $result;
- } else {
- echo $result;
- return NULL;
- }
-}
-
-// Remove redundant values from array()
-function array_unique_recursive($array = array())
-{
- if (! is_array($array)) return $array;
-
- $tmp = array();
- foreach($array as $key => $value){
- if (is_array($value)) {
- $array[$key] = array_unique_recursive($value);
- } else {
- if (isset($tmp[$value])) {
- unset($array[$key]);
- } else {
- $tmp[$value] = TRUE;
- }
- }
- }
-
- return $array;
-}
-
-// Renumber all numeric keys from 0
-function array_renumber_numeric_keys(& $array)
-{
- if (! is_array($array)) return $array;
-
- $count = -1;
- $tmp = array();
- foreach($array as $key => $value){
- if (is_array($value)) array_renumber_numeric_keys($array[$key]); // Recurse
- if (is_numeric($key)) $tmp[$key] = ++$count;
- }
- array_rename_keys($array, $tmp);
-
- return $array;
-}
-
-// Roughly strings(1) using PCRE
-// This function is useful to:
-// * Reduce the size of data, from removing unprintable binary data
-// * Detect _bare_strings_ from binary data
-// References:
-// http://www.freebsd.org/cgi/man.cgi?query=strings (Man-page of GNU strings)
-// http://www.pcre.org/pcre.txt
-// Note: mb_ereg_replace() is one of mbstring extension's functions
-// and need to init its encoding.
-function strings($binary = '', $min_len = 4, $ignore_space = FALSE, $multibyte = FALSE)
-{
- // String only
- $binary = (is_array($binary) || $binary === TRUE) ? '' : strval($binary);
-
- $regex = $ignore_space ?
- '[^[:graph:] \t\n]+' : // Remove "\0" etc, and readable spaces
- '[^[:graph:][:space:]]+'; // Preserve readable spaces if possible
-
- $binary = $multibyte ?
- mb_ereg_replace($regex, "\n", $binary) :
- preg_replace('/' . $regex . '/s', "\n", $binary);
-
- if ($ignore_space) {
- $binary = preg_replace(
- array(
- '/[ \t]{2,}/',
- '/^[ \t]/m',
- '/[ \t]$/m',
- ),
- array(
- ' ',
- '',
- ''
- ),
- $binary);
- }
-
- if ($min_len > 1) {
- // The last character seems "\n" or not
- $br = (! empty($binary) && $binary[strlen($binary) - 1] == "\n") ? "\n" : '';
-
- $min_len = min(1024, intval($min_len));
- $regex = '/^.{' . $min_len . ',}/S';
- $binary = implode("\n", preg_grep($regex, explode("\n", $binary))) . $br;
- }
-
- return $binary;
-}
-
-// Reverse $string with specified delimiter
-function delimiter_reverse($string = 'foo.bar.example.com', $from_delim = '.', $to_delim = '.')
-{
- if (! is_string($string) || ! is_string($from_delim) || ! is_string($to_delim))
- return $string;
-
- // com.example.bar.foo
- return implode($to_delim, array_reverse(explode($from_delim, $string)));
-}
-
-
-// ---------------------
-// URI pickup
-
-// Return an array of URIs in the $string
-// [OK] http://nasty.example.org#nasty_string
-// [OK] http://nasty.example.org:80/foo/xxx#nasty_string/bar
-// [OK] ftp://nasty.example.org:80/dfsdfs
-// [OK] ftp://cnn.example.com&story=breaking_news@10.0.0.1/top_story.htm (from RFC3986)
-function uri_pickup($string = '')
-{
- if (! is_string($string)) return array();
-
- // Not available for: IDN(ignored)
- $array = array();
- preg_match_all(
- // scheme://userinfo@host:port/path/or/pathinfo/maybefile.and?query=string#fragment
- // Refer RFC3986 (Regex below is not strict)
- '#(\b[a-z][a-z0-9.+-]{1,8}):[/\\\]+' . // 1: Scheme
- '(?:' .
- '([^\s<>"\'\[\]/\#?@]*)' . // 2: Userinfo (Username)
- '@)?' .
- '(' .
- // 3: Host
- '\[[0-9a-f:.]+\]' . '|' . // IPv6([colon-hex and dot]): RFC2732
- '(?:[0-9]{1,3}\.){3}[0-9]{1,3}' . '|' . // IPv4(dot-decimal): 001.22.3.44
- '[a-z0-9][a-z0-9.-]+[a-z0-9]' . // hostname(FQDN) : foo.example.org
- ')' .
- '(?::([0-9]*))?' . // 4: Port
- '((?:/+[^\s<>"\'\[\]/\#]+)*/+)?' . // 5: Directory path or path-info
- '([^\s<>"\'\[\]\#?]+)?' . // 6: File?
- '(?:\?([^\s<>"\'\[\]\#]+))?' . // 7: Query string
- '(?:\#([a-z0-9._~%!$&\'()*+,;=:@-]*))?' . // 8: Fragment
- '#i',
- $string, $array, PREG_SET_ORDER | PREG_OFFSET_CAPTURE
- );
-
- // Format the $array
- static $parts = array(
- 1 => 'scheme', 2 => 'userinfo', 3 => 'host', 4 => 'port',
- 5 => 'path', 6 => 'file', 7 => 'query', 8 => 'fragment'
- );
- $default = array('');
- foreach(array_keys($array) as $uri) {
- $_uri = & $array[$uri];
- array_rename_keys($_uri, $parts, TRUE, $default);
- $offset = $_uri['scheme'][1]; // Scheme's offset = URI's offset
- foreach(array_keys($_uri) as $part) {
- $_uri[$part] = & $_uri[$part][0]; // Remove offsets
- }
- }
-
- foreach(array_keys($array) as $uri) {
- $_uri = & $array[$uri];
- if ($_uri['scheme'] === '') {
- unset($array[$uri]); // Considererd harmless
- continue;
- }
- unset($_uri[0]); // Matched string itself
- $_uri['area']['offset'] = $offset; // Area offset for area_measure()
- }
-
- return $array;
-}
-
-// Normalize an array of URI arrays
-// NOTE: Give me the uri_pickup() results
-function uri_pickup_normalize(& $pickups, $destructive = TRUE)
-{
- if (! is_array($pickups)) return $pickups;
-
- if ($destructive) {
- foreach (array_keys($pickups) as $key) {
- $_key = & $pickups[$key];
- $_key['scheme'] = isset($_key['scheme']) ? scheme_normalize($_key['scheme']) : '';
- $_key['host'] = isset($_key['host']) ? host_normalize($_key['host']) : '';
- $_key['port'] = isset($_key['port']) ? port_normalize($_key['port'], $_key['scheme'], FALSE) : '';
- $_key['path'] = isset($_key['path']) ? strtolower(path_normalize($_key['path'])) : '';
- $_key['file'] = isset($_key['file']) ? file_normalize($_key['file']) : '';
- $_key['query'] = isset($_key['query']) ? query_normalize($_key['query']) : '';
- $_key['fragment'] = isset($_key['fragment']) ? strtolower($_key['fragment']) : '';
- }
- } else {
- foreach (array_keys($pickups) as $key) {
- $_key = & $pickups[$key];
- $_key['scheme'] = isset($_key['scheme']) ? scheme_normalize($_key['scheme']) : '';
- $_key['host'] = isset($_key['host']) ? strtolower($_key['host']) : '';
- $_key['port'] = isset($_key['port']) ? port_normalize($_key['port'], $_key['scheme'], FALSE) : '';
- $_key['path'] = isset($_key['path']) ? path_normalize($_key['path']) : '';
- }
- }
-
- return $pickups;
-}
-
-// An URI array => An URI (See uri_pickup())
-// USAGE:
-// $pickups = uri_pickup('a string include some URIs');
-// $uris = array();
-// foreach (array_keys($pickups) as $key) {
-// $uris[$key] = uri_pickup_implode($pickups[$key]);
-// }
-function uri_pickup_implode($uri = array())
-{
- if (empty($uri) || ! is_array($uri)) return NULL;
-
- $tmp = array();
- if (isset($uri['scheme']) && $uri['scheme'] !== '') {
- $tmp[] = & $uri['scheme'];
- $tmp[] = '://';
- }
- if (isset($uri['userinfo']) && $uri['userinfo'] !== '') {
- $tmp[] = & $uri['userinfo'];
- $tmp[] = '@';
- }
- if (isset($uri['host']) && $uri['host'] !== '') {
- $tmp[] = & $uri['host'];
- }
- if (isset($uri['port']) && $uri['port'] !== '') {
- $tmp[] = ':';
- $tmp[] = & $uri['port'];
- }
- if (isset($uri['path']) && $uri['path'] !== '') {
- $tmp[] = & $uri['path'];
- }
- if (isset($uri['file']) && $uri['file'] !== '') {
- $tmp[] = & $uri['file'];
- }
- if (isset($uri['query']) && $uri['query'] !== '') {
- $tmp[] = '?';
- $tmp[] = & $uri['query'];
- }
- if (isset($uri['fragment']) && $uri['fragment'] !== '') {
- $tmp[] = '#';
- $tmp[] = & $uri['fragment'];
- }
-
- return implode('', $tmp);
-}
-
-// $array['something'] => $array['wanted']
-function array_rename_keys(& $array, $keys = array('from' => 'to'), $force = FALSE, $default = '')
-{
- if (! is_array($array) || ! is_array($keys)) return FALSE;
-
- // Nondestructive test
- if (! $force)
- foreach(array_keys($keys) as $from)
- if (! isset($array[$from]))
- return FALSE;
-
- foreach($keys as $from => $to) {
- if ($from === $to) continue;
- if (! $force || isset($array[$from])) {
- $array[$to] = & $array[$from];
- unset($array[$from]);
- } else {
- $array[$to] = $default;
- }
- }
-
- return TRUE;
-}
-
-// ---------------------
-// Area pickup
-
-// Pickup all of markup areas
-function area_pickup($string = '', $method = array())
-{
- $area = array();
- if (empty($method)) return $area;
-
- // Anchor tag pair by preg_match and preg_match_all()
- // [OK] <a href></a>
- // [OK] <a href= >Good site!</a>
- // [OK] <a href= "#" >test</a>
- // [OK] <a href="http://nasty.example.com">visit http://nasty.example.com/</a>
- // [OK] <a href=\'http://nasty.example.com/\' >discount foobar</a>
- // [NG] <a href="http://ng.example.com">visit http://ng.example.com _not_ended_
- $regex = '#<a\b[^>]*\bhref\b[^>]*>.*?</a\b[^>]*(>)#is';
- if (isset($method['area_anchor'])) {
- $areas = array();
- $count = isset($method['asap']) ?
- preg_match($regex, $string) :
- preg_match_all($regex, $string, $areas);
- if (! empty($count)) $area['area_anchor'] = $count;
- }
- if (isset($method['uri_anchor'])) {
- $areas = array();
- preg_match_all($regex, $string, $areas, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
- foreach(array_keys($areas) as $_area) {
- $areas[$_area] = array(
- $areas[$_area][0][1], // Area start (<a href>)
- $areas[$_area][1][1], // Area end (</a>)
- );
- }
- if (! empty($areas)) $area['uri_anchor'] = $areas;
- }
-
- // phpBB's "BBCode" pair by preg_match and preg_match_all()
- // [OK] [url][/url]
- // [OK] [url]http://nasty.example.com/[/url]
- // [OK] [link]http://nasty.example.com/[/link]
- // [OK] [url=http://nasty.example.com]visit http://nasty.example.com/[/url]
- // [OK] [link http://nasty.example.com/]buy something[/link]
- $regex = '#\[(url|link)\b[^\]]*\].*?\[/\1\b[^\]]*(\])#is';
- if (isset($method['area_bbcode'])) {
- $areas = array();
- $count = isset($method['asap']) ?
- preg_match($regex, $string) :
- preg_match_all($regex, $string, $areas, PREG_SET_ORDER);
- if (! empty($count)) $area['area_bbcode'] = $count;
- }
- if (isset($method['uri_bbcode'])) {
- $areas = array();
- preg_match_all($regex, $string, $areas, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
- foreach(array_keys($areas) as $_area) {
- $areas[$_area] = array(
- $areas[$_area][0][1], // Area start ([url])
- $areas[$_area][2][1], // Area end ([/url])
- );
- }
- if (! empty($areas)) $area['uri_bbcode'] = $areas;
- }
-
- // Various Wiki syntax
- // [text_or_uri>text_or_uri]
- // [text_or_uri:text_or_uri]
- // [text_or_uri|text_or_uri]
- // [text_or_uri->text_or_uri]
- // [text_or_uri text_or_uri] // MediaWiki
- // MediaWiki: [http://nasty.example.com/ visit http://nasty.example.com/]
-
- return $area;
-}
-
-// If in doubt, it's a little doubtful
-// if (Area => inside <= Area) $brief += -1
-function area_measure($areas, & $array, $belief = -1, $a_key = 'area', $o_key = 'offset')
-{
- if (! is_array($areas) || ! is_array($array)) return;
-
- $areas_keys = array_keys($areas);
- foreach(array_keys($array) as $u_index) {
- $offset = isset($array[$u_index][$o_key]) ?
- intval($array[$u_index][$o_key]) : 0;
- foreach($areas_keys as $a_index) {
- if (isset($array[$u_index][$a_key])) {
- $offset_s = intval($areas[$a_index][0]);
- $offset_e = intval($areas[$a_index][1]);
- // [Area => inside <= Area]
- if ($offset_s < $offset && $offset < $offset_e) {
- $array[$u_index][$a_key] += $belief;
- }
- }
- }
- }
-}
-
-// ---------------------
-// Spam-uri pickup
-
-// Domain exposure callback (See spam_uri_pickup_preprocess())
-// http://victim.example.org/?foo+site:nasty.example.com+bar
-// => http://nasty.example.com/?refer=victim.example.org
-// NOTE: 'refer=' is not so good for (at this time).
-// Consider about using IP address of the victim, try to avoid that.
-function _preg_replace_callback_domain_exposure($matches = array())
-{
- $result = '';
-
- // Preserve the victim URI as a complicity or ...
- if (isset($matches[5])) {
- $result =
- $matches[1] . '://' . // scheme
- $matches[2] . '/' . // victim.example.org
- $matches[3]; // The rest of all (before victim)
- }
-
- // Flipped URI
- if (isset($matches[4])) {
- $result =
- $matches[1] . '://' . // scheme
- $matches[4] . // nasty.example.com
- '/?refer=' . strtolower($matches[2]) . // victim.example.org
- ' ' . $result;
- }
-
- return $result;
-}
-
-// Preprocess: Removing uninterest part for URI detection
-function spam_uri_removing_hocus_pocus($binary = '', $method = array())
-{
- $length = 4 ; // 'http'(1) and '://'(2) and 'fqdn'(1)
- if (is_array($method)) {
- // '<a'(2) or 'href='(5) or '>'(1) or '</a>'(4)
- // '[uri'(4) or ']'(1) or '[/uri]'(6)
- if (isset($method['area_anchor']) || isset($method['uri_anchor']) ||
- isset($method['area_bbcode']) || isset($method['uri_bbcode']))
- $length = 1; // Seems not effective
- }
-
- // Removing sequential spaces and too short lines
- $binary = strings($binary, $length, TRUE, FALSE); // Multibyte NOT needed
-
- // Remove words (has no '<>[]:') between spaces
- $binary = preg_replace('/[ \t][\w.,()\ \t]+[ \t]/', ' ', $binary);
-
- return $binary;
-}
-
-// Preprocess: rawurldecode() and adding space(s) and something
-// to detect/count some URIs _if possible_
-// NOTE: It's maybe danger to var_dump(result). [e.g. 'javascript:']
-// [OK] http://victim.example.org/?site:nasty.example.org
-// [OK] http://victim.example.org/nasty.example.org
-// [OK] http://victim.example.org/go?http%3A%2F%2Fnasty.example.org
-// [OK] http://victim.example.org/http://nasty.example.org
-function spam_uri_pickup_preprocess($string = '', $method = array())
-{
- if (! is_string($string)) return '';
-
- $string = spam_uri_removing_hocus_pocus(rawurldecode($string), $method);
- //var_dump(htmlspecialchars($string));
-
- // Domain exposure (simple)
- // http://victim.example.org/nasty.example.org/path#frag
- // => http://nasty.example.org/?refer=victim.example.org and original
- $string = preg_replace(
- '#h?ttp://' .
- '(' .
- 'ime\.nu' . '|' . // 2ch.net
- 'ime\.st' . '|' . // 2ch.net
- 'link\.toolbot\.com' . '|' .
- 'urlx\.org' .
- ')' .
- '/([a-z0-9.%_-]+\.[a-z0-9.%_-]+)#i', // nasty.example.org
- 'http://$2/?refer=$1 $0', // Preserve $0 or remove?
- $string
- );
-
- // Domain exposure (gate-big5)
- // http://victim.example.org/gate/big5/nasty.example.org/path
- // => http://nasty.example.org/?refer=victim.example.org and original
- $string = preg_replace(
- '#h?ttp://' .
- '(' .
- 'big5.51job.com' . '|' .
- 'big5.china.com' . '|' .
- 'big5.xinhuanet.com' . '|' .
- ')' .
- '/gate/big5' .
- '/([a-z0-9.%_-]+\.[a-z0-9.%_-]+)' .
- '#i', // nasty.example.org
- 'http://$2/?refer=$1 $0', // Preserve $0 or remove?
- $string
- );
-
- // Domain exposure (See _preg_replace_callback_domain_exposure())
- $string = preg_replace_callback(
- array(
- '#(http)://' .
- '(' .
- // Something Google: http://www.google.com/supported_domains
- '(?:[a-z0-9.]+\.)?google\.[a-z]{2,3}(?:\.[a-z]{2})?' .
- '|' .
- // AltaVista
- '(?:[a-z0-9.]+\.)?altavista.com' .
-
- ')' .
- '/' .
- '([a-z0-9?=&.%_/\'\\\+-]+)' . // path/?query=foo+bar+
- '\bsite:([a-z0-9.%_-]+\.[a-z0-9.%_-]+)' . // site:nasty.example.com
- //'()' . // Preserve or remove?
- '#i',
- ),
- '_preg_replace_callback_domain_exposure',
- $string
- );
-
- // URI exposure (uriuri => uri uri)
- $string = preg_replace(
- array(
- '#(?<! )(?:https?|ftp):/#i',
- // '#[a-z][a-z0-9.+-]{1,8}://#i',
- // '#[a-z][a-z0-9.+-]{1,8}://#i'
- ),
- ' $0',
- $string
- );
-
- return $string;
-}
-
-// Main function of spam-uri pickup,
-// A wrapper function of uri_pickup()
-function spam_uri_pickup($string = '', $method = array())
-{
- if (! is_array($method) || empty($method)) {
- $method = check_uri_spam_method();
- }
-
- $string = spam_uri_pickup_preprocess($string, $method);
-
- $array = uri_pickup($string);
-
- // Area elevation of URIs, for '(especially external)link' intension
- if (! empty($array)) {
- $_method = array();
- if (isset($method['uri_anchor'])) $_method['uri_anchor'] = & $method['uri_anchor'];
- if (isset($method['uri_bbcode'])) $_method['uri_bbcode'] = & $method['uri_bbcode'];
- $areas = area_pickup($string, $_method, TRUE);
- if (! empty($areas)) {
- $area_shadow = array();
- foreach (array_keys($array) as $key) {
- $area_shadow[$key] = & $array[$key]['area'];
- foreach (array_keys($_method) as $_key) {
- $area_shadow[$key][$_key] = 0;
- }
- }
- foreach (array_keys($_method) as $_key) {
- if (isset($areas[$_key])) {
- area_measure($areas[$_key], $area_shadow, 1, $_key);
- }
- }
- }
- }
-
- // Remove 'offset's for area_measure()
- foreach(array_keys($array) as $key)
- unset($array[$key]['area']['offset']);
-
- return $array;
-}
-
-
-// ---------------------
-// Normalization
-
-// Scheme normalization: Renaming the schemes
-// snntp://example.org => nntps://example.org
-// NOTE: Keep the static lists simple. See also port_normalize().
-function scheme_normalize($scheme = '', $abbrevs_harmfull = TRUE)
-{
- // Abbreviations they have no intention of link
- static $abbrevs = array(
- 'ttp' => 'http',
- 'ttps' => 'https',
- );
-
- // Aliases => normalized ones
- static $aliases = array(
- 'pop' => 'pop3',
- 'news' => 'nntp',
- 'imap4' => 'imap',
- 'snntp' => 'nntps',
- 'snews' => 'nntps',
- 'spop3' => 'pop3s',
- 'pops' => 'pop3s',
- );
-
- if (! is_string($scheme)) return '';
-
- $scheme = strtolower($scheme);
- if (isset($abbrevs[$scheme])) {
- $scheme = $abbrevs_harmfull ? $abbrevs[$scheme] : '';
- }
- if (isset($aliases[$scheme])) {
- $scheme = $aliases[$scheme];
- }
-
- return $scheme;
-}
-
-// Hostname normlization (Destructive)
-// www.foo => www.foo ('foo' seems TLD)
-// www.foo.bar => foo.bar
-// www.10.20 => www.10.20 (Invalid hostname)
-// NOTE:
-// 'www' is mostly used as traditional hostname of WWW server.
-// 'www.foo.bar' may be identical with 'foo.bar'.
-function host_normalize($host = '')
-{
- if (! is_string($host)) return '';
-
- $host = strtolower($host);
- $matches = array();
- if (preg_match('/^www\.(.+\.[a-z]+)$/', $host, $matches)) {
- return $matches[1];
- } else {
- return $host;
- }
-}
-
-// Port normalization: Suppress the (redundant) default port
-// HTTP://example.org:80/ => http://example.org/
-// HTTP://example.org:8080/ => http://example.org:8080/
-// HTTPS://example.org:443/ => https://example.org/
-function port_normalize($port, $scheme, $scheme_normalize = FALSE)
-{
- // Schemes that users _maybe_ want to add protocol-handlers
- // to their web browsers. (and attackers _maybe_ want to use ...)
- // Reference: http://www.iana.org/assignments/port-numbers
- static $array = array(
- // scheme => default port
- 'ftp' => 21,
- 'ssh' => 22,
- 'telnet' => 23,
- 'smtp' => 25,
- 'tftp' => 69,
- 'gopher' => 70,
- 'finger' => 79,
- 'http' => 80,
- 'pop3' => 110,
- 'sftp' => 115,
- 'nntp' => 119,
- 'imap' => 143,
- 'irc' => 194,
- 'wais' => 210,
- 'https' => 443,
- 'nntps' => 563,
- 'rsync' => 873,
- 'ftps' => 990,
- 'telnets' => 992,
- 'imaps' => 993,
- 'ircs' => 994,
- 'pop3s' => 995,
- 'mysql' => 3306,
- );
-
- // intval() converts '0-1' to '0', so preg_match() rejects these invalid ones
- if (! is_numeric($port) || $port < 0 || preg_match('/[^0-9]/i', $port))
- return '';
-
- $port = intval($port);
- if ($scheme_normalize) $scheme = scheme_normalize($scheme);
- if (isset($array[$scheme]) && $port == $array[$scheme])
- $port = ''; // Ignore the defaults
-
- return $port;
-}
-
-// Path normalization
-// http://example.org => http://example.org/
-// http://example.org#hoge => http://example.org/#hoge
-// http://example.org/path/a/b/./c////./d => http://example.org/path/a/b/c/d
-// http://example.org/path/../../a/../back => http://example.org/back
-function path_normalize($path = '', $divider = '/', $add_root = TRUE)
-{
- if (! is_string($divider)) return is_string($path) ? $path : '';
-
- if ($add_root) {
- $first_div = & $divider;
- } else {
- $first_div = '';
- }
- if (! is_string($path) || $path == '') return $first_div;
-
- if (strpos($path, $divider, strlen($path) - strlen($divider)) === FALSE) {
- $last_div = '';
- } else {
- $last_div = & $divider;
- }
-
- $array = explode($divider, $path);
-
- // Remove paddings ('//' and '/./')
- foreach(array_keys($array) as $key) {
- if ($array[$key] == '' || $array[$key] == '.') {
- unset($array[$key]);
- }
- }
-
- // Remove back-tracks ('/../')
- $tmp = array();
- foreach($array as $value) {
- if ($value == '..') {
- array_pop($tmp);
- } else {
- array_push($tmp, $value);
- }
- }
- $array = & $tmp;
-
- if (empty($array)) {
- return $first_div;
- } else {
- return $first_div . implode($divider, $array) . $last_div;
- }
-}
-
-// DirectoryIndex normalize (Destructive and rough)
-// TODO: sample.en.ja.html.gz => sample.html
-function file_normalize($file = 'index.html.en')
-{
- static $simple_defaults = array(
- 'default.htm' => TRUE,
- 'default.html' => TRUE,
- 'default.asp' => TRUE,
- 'default.aspx' => TRUE,
- 'index' => TRUE, // Some system can omit the suffix
- );
-
- static $content_suffix = array(
- // index.xxx, sample.xxx
- 'htm' => TRUE,
- 'html' => TRUE,
- 'shtml' => TRUE,
- 'jsp' => TRUE,
- 'php' => TRUE,
- 'php3' => TRUE,
- 'php4' => TRUE,
- 'pl' => TRUE,
- 'py' => TRUE,
- 'rb' => TRUE,
- 'cgi' => TRUE,
- 'xml' => TRUE,
- );
-
- static $language_suffix = array(
- // Reference: Apache 2.0.59 'AddLanguage' default
- 'ca' => TRUE,
- 'cs' => TRUE, // cs
- 'cz' => TRUE, // cs
- 'de' => TRUE,
- 'dk' => TRUE, // da
- 'el' => TRUE,
- 'en' => TRUE,
- 'eo' => TRUE,
- 'es' => TRUE,
- 'et' => TRUE,
- 'fr' => TRUE,
- 'he' => TRUE,
- 'hr' => TRUE,
- 'it' => TRUE,
- 'ja' => TRUE,
- 'ko' => TRUE,
- 'ltz' => TRUE,
- 'nl' => TRUE,
- 'nn' => TRUE,
- 'no' => TRUE,
- 'po' => TRUE,
- 'pt' => TRUE,
- 'pt-br' => TRUE,
- 'ru' => TRUE,
- 'sv' => TRUE,
- 'zh-cn' => TRUE,
- 'zh-tw' => TRUE,
-
- // Reference: Apache 2.0.59 default 'index.html' variants
- 'ee' => TRUE,
- 'lb' => TRUE,
- 'var' => TRUE,
- );
-
- static $charset_suffix = array(
- // Reference: Apache 2.0.59 'AddCharset' default
- 'iso8859-1' => TRUE, // ISO-8859-1
- 'latin1' => TRUE, // ISO-8859-1
- 'iso8859-2' => TRUE, // ISO-8859-2
- 'latin2' => TRUE, // ISO-8859-2
- 'cen' => TRUE, // ISO-8859-2
- 'iso8859-3' => TRUE, // ISO-8859-3
- 'latin3' => TRUE, // ISO-8859-3
- 'iso8859-4' => TRUE, // ISO-8859-4
- 'latin4' => TRUE, // ISO-8859-4
- 'iso8859-5' => TRUE, // ISO-8859-5
- 'latin5' => TRUE, // ISO-8859-5
- 'cyr' => TRUE, // ISO-8859-5
- 'iso-ru' => TRUE, // ISO-8859-5
- 'iso8859-6' => TRUE, // ISO-8859-6
- 'latin6' => TRUE, // ISO-8859-6
- 'arb' => TRUE, // ISO-8859-6
- 'iso8859-7' => TRUE, // ISO-8859-7
- 'latin7' => TRUE, // ISO-8859-7
- 'grk' => TRUE, // ISO-8859-7
- 'iso8859-8' => TRUE, // ISO-8859-8
- 'latin8' => TRUE, // ISO-8859-8
- 'heb' => TRUE, // ISO-8859-8
- 'iso8859-9' => TRUE, // ISO-8859-9
- 'latin9' => TRUE, // ISO-8859-9
- 'trk' => TRUE, // ISO-8859-9
- 'iso2022-jp'=> TRUE, // ISO-2022-JP
- 'jis' => TRUE, // ISO-2022-JP
- 'iso2022-kr'=> TRUE, // ISO-2022-KR
- 'kis' => TRUE, // ISO-2022-KR
- 'iso2022-cn'=> TRUE, // ISO-2022-CN
- 'cis' => TRUE, // ISO-2022-CN
- 'big5' => TRUE,
- 'cp-1251' => TRUE, // ru, WINDOWS-1251
- 'win-1251' => TRUE, // ru, WINDOWS-1251
- 'cp866' => TRUE, // ru
- 'koi8-r' => TRUE, // ru, KOI8-r
- 'koi8-ru' => TRUE, // ru, KOI8-r
- 'koi8-uk' => TRUE, // ru, KOI8-ru
- 'ua' => TRUE, // ru, KOI8-ru
- 'ucs2' => TRUE, // ru, ISO-10646-UCS-2
- 'ucs4' => TRUE, // ru, ISO-10646-UCS-4
- 'utf8' => TRUE,
-
- // Reference: Apache 2.0.59 default 'index.html' variants
- 'euc-kr' => TRUE,
- 'gb2312' => TRUE,
- );
-
- // May uncompress by web browsers on the fly
- // Must be at the last of the filename
- // Reference: Apache 2.0.59 'AddEncoding'
- static $encoding_suffix = array(
- 'z' => TRUE,
- 'gz' => TRUE,
- );
+if (! defined('LIB_DIR')) define('LIB_DIR', './');
+require(LIB_DIR . 'spam_pickup.php');
+require(LIB_DIR . 'spam_util.php');
- if (! is_string($file)) return '';
- $_file = strtolower($file);
- if (isset($simple_defaults[$_file])) return '';
-
-
- // Roughly removing language/character-set/encoding suffixes
- // References:
- // * Apache 2 document about 'Content-negotiaton', 'mod_mime' and 'mod_negotiation'
- // http://httpd.apache.org/docs/2.0/content-negotiation.html
- // http://httpd.apache.org/docs/2.0/mod/mod_mime.html
- // http://httpd.apache.org/docs/2.0/mod/mod_negotiation.html
- // * http://www.iana.org/assignments/character-sets
- // * RFC3066: Tags for the Identification of Languages
- // http://www.ietf.org/rfc/rfc3066.txt
- // * ISO 639: codes of 'language names'
- $suffixes = explode('.', $_file);
- $body = array_shift($suffixes);
- if ($suffixes) {
- // Remove the last .gz/.z
- $last_key = end(array_keys($suffixes));
- if (isset($encoding_suffix[$suffixes[$last_key]])) {
- unset($suffixes[$last_key]);
- }
- }
- // Cut language and charset suffixes
- foreach($suffixes as $key => $value){
- if (isset($language_suffix[$value]) || isset($charset_suffix[$value])) {
- unset($suffixes[$key]);
- }
- }
- if (empty($suffixes)) return $body;
-
- // Index.xxx
- $count = count($suffixes);
- reset($suffixes);
- $current = current($suffixes);
- if ($body == 'index' && $count == 1 && isset($content_suffix[$current])) return '';
-
- return $file;
-}
+if (! defined('SPAM_INI_FILE')) define('SPAM_INI_FILE', 'spam.ini.php');
-// Sort query-strings if possible (Destructive and rough)
-// [OK] &&&&f=d&b&d&c&a=0dd => a=0dd&b&c&d&f=d
-// [OK] nothing==&eg=dummy&eg=padding&eg=foobar => eg=foobar
-function query_normalize($string = '', $equal = TRUE, $equal_cutempty = TRUE, $stortolower = TRUE)
-{
- if (! is_string($string)) return '';
- if ($stortolower) $string = strtolower($string);
-
- $array = explode('&', $string);
-
- // Remove '&' paddings
- foreach(array_keys($array) as $key) {
- if ($array[$key] == '') {
- unset($array[$key]);
- }
- }
-
- // Consider '='-sepalated input and paddings
- if ($equal) {
- $equals = $not_equals = array();
- foreach ($array as $part) {
- if (strpos($part, '=') === FALSE) {
- $not_equals[] = $part;
- } else {
- list($key, $value) = explode('=', $part, 2);
- $value = ltrim($value, '=');
- if (! $equal_cutempty || $value != '') {
- $equals[$key] = $value;
- }
- }
- }
-
- $array = & $not_equals;
- foreach ($equals as $key => $value) {
- $array[] = $key . '=' . $value;
- }
- unset($equals);
- }
-
- natsort($array);
- return implode('&', $array);
-}
// ---------------------
-// Part One : Checker
+// Regex
// Rough implementation of globbing
//
return $string;
}
-// Rough hostname checker
-// [OK] 192.168.
-// TODO: Strict digit, 0x, CIDR, IPv6
-function is_ip($string = '')
-{
- if (preg_match('/^' .
- '(?:[0-9]{1,3}\.){3}[0-9]{1,3}' . '|' .
- '(?:[0-9]{1,3}\.){1,3}' . '$/',
- $string)) {
- return 4; // Seems IPv4(dot-decimal)
- } else {
- return 0; // Seems not IP
- }
-}
-
// Generate host (FQDN, IPv4, ...) regex
// 'localhost' : Matches with 'localhost' only
// 'example.org' : Matches with 'example.org' only (See host_normalize() about 'www')
{
if (! is_string($string)) return '';
- if (mb_strpos($string, '.') === FALSE)
+ if (mb_strpos($string, '.') === FALSE || is_ip($string)) {
+ // "localhost", IPv4, etc
return generate_glob_regex($string, $divider);
+ }
- $result = '';
- if (is_ip($string)) {
- // IPv4
- return generate_glob_regex($string, $divider);
+ // FQDN or something
+ $part = explode('.', $string, 2);
+ if ($part[0] == '') {
+ // ".example.org"
+ $part[0] = '(?:.*\.)?';
+ } else if ($part[0] == '*') {
+ // "*.example.org"
+ $part[0] = '.*\.';
} else {
- // FQDN or something
- $part = explode('.', $string, 2);
- if ($part[0] == '') {
- $part[0] = '(?:.*\.)?'; // And all related FQDN
- } else if ($part[0] == '*') {
- $part[0] = '.*\.'; // All subdomains/hosts only
- } else {
- return generate_glob_regex($string, $divider);
- }
- $part[1] = generate_glob_regex($part[1], $divider);
- return implode('', $part);
+ // example.org, etc
+ return generate_glob_regex($string, $divider);
}
+
+ $part[1] = generate_glob_regex($part[1], $divider);
+
+ return implode('', $part);
}
+
+// ---------------------
+// Load
+
+// Load SPAM_INI_FILE and return parsed one
function get_blocklist($list = '')
{
static $regexes;
$regexes = array();
if (file_exists(SPAM_INI_FILE)) {
$blocklist = array();
+
include(SPAM_INI_FILE);
+ // $blocklist['list'] = array(
+ // //'goodhost' => FALSE;
+ // 'badhost' => TRUE;
+ // );
// $blocklist['badhost'] = array(
// '*.blogspot.com', // Blog services's subdomains (only)
// 'IANA-examples' => '#^(?:.*\.)?example\.(?:com|net|org)$#',
// );
- if (isset($blocklist['list'])) {
- $regexes['list'] = & $blocklist['list'];
- } else {
- // Default
- $blocklist['list'] = array(
- 'goodhost' => FALSE,
- 'badhost' => TRUE,
- );
- }
- foreach(array_keys($blocklist['list']) as $_list) {
- if (! isset($blocklist[$_list])) continue;
- foreach ($blocklist[$_list] as $key => $value) {
- if (is_array($value)) {
- $regexes[$_list][$key] = array();
- foreach($value as $_key => $_value) {
- get_blocklist_add($regexes[$_list][$key], $_key, $_value);
+
+ foreach(array(
+ 'pre',
+ 'list',
+ ) as $special) {
+
+ if (! isset($blocklist[$special])) continue;
+
+ $regexes[$special] = $blocklist[$special];
+
+ foreach(array_keys($blocklist[$special]) as $_list) {
+ if (! isset($blocklist[$_list])) continue;
+
+ foreach ($blocklist[$_list] as $key => $value) {
+ if (is_array($value)) {
+ $regexes[$_list][$key] = array();
+ foreach($value as $_key => $_value) {
+ get_blocklist_add($regexes[$_list][$key], $_key, $_value);
+ }
+ } else {
+ get_blocklist_add($regexes[$_list], $key, $value);
}
- } else {
- get_blocklist_add($regexes[$_list], $key, $value);
}
+
+ unset($blocklist[$_list]);
}
- unset($blocklist[$_list]);
}
}
}
if ($list === '') {
- return $regexes; // ALL
+ return $regexes; // ALL of
} else if (isset($regexes[$list])) {
- return $regexes[$list];
+ return $regexes[$list]; // A part of
} else {
- return array();
+ return array(); // Found nothing
}
}
-// Subroutine of get_blocklist()
-function get_blocklist_add(& $array, $key = 0, $value = '*.example.org')
+// Subroutine of get_blocklist(): Add new regex to the $array
+function get_blocklist_add(& $array, $key = 0, $value = '*.example.org/path/to/file.html')
{
if (is_string($key)) {
- $array[$key] = & $value; // Treat $value as a regex
+ $array[$key] = & $value; // Treat $value as a regex for FQDN(host)s
} else {
- $array[$value] = '/^' . generate_host_regex($value, '/') . '$/i';
+ $regex = generate_host_regex($value, '#');
+ if (! empty($regex)) {
+ $array[$value] = '#^' . $regex . '$#i';
+ }
}
}
return $blocked;
}
+
+// ---------------------
+
+
// Default (enabled) methods and thresholds (for content insertion)
function check_uri_spam_method($times = 1, $t_area = 0, $rule = TRUE)
{
),
);
+ // ----------------------------------------
// Aliases
+
$sum = & $progress['sum'];
$is_spam = & $progress['is_spam'];
$progress['method'] = & $method; // Argument
$hosts = & $progress['hosts'];
$asap = isset($method['asap']);
+ // ----------------------------------------
// Init
+
if (! is_array($method) || empty($method)) {
$method = check_uri_spam_method();
}
}
if (! isset($sum['quantity'])) $sum['quantity'] = 0;
+ // ----------------------------------------
+ // Recurse
+
if (is_array($target)) {
foreach($target as $str) {
if (! is_string($str)) continue;
if ($asap && $is_spam) break;
// Merge only
- $blocked = array_merge_recursive($blocked, $_progress['blocked']);
- $hosts = array_merge_recursive($hosts, $_progress['hosts']);
+ $blocked = array_merge_leaves($blocked, $_progress['blocked'], FALSE);
+ $hosts = array_merge_leaves($hosts, $_progress['hosts'], FALSE);
}
// Unique values
return $progress;
}
- // Area: There's HTML anchor tag
- if ((! $asap || ! $is_spam) && isset($method['area_anchor'])) {
- $key = 'area_anchor';
- $_asap = isset($method['asap']) ? array('asap' => TRUE) : array();
- $result = area_pickup($target, array($key => TRUE) + $_asap);
- if ($result) {
- $sum[$key] = $result[$key];
- if (isset($method[$key]) && $sum[$key] > $method[$key]) {
- $is_spam[$key] = TRUE;
- }
+ // ----------------------------------------
+ // Area measure
+
+ if (! $asap || ! $is_spam) {
+
+ // Method pickup
+ $_method = array();
+ foreach(array(
+ 'area_anchor', // There's HTML anchor tag
+ 'area_bbcode', // There's 'BBCode' linking tag
+ ) as $key) {
+ if (isset($method[$key])) $_method[$key] = TRUE;
}
- }
- // Area: There's 'BBCode' linking tag
- if ((! $asap || ! $is_spam) && isset($method['area_bbcode'])) {
- $key = 'area_bbcode';
- $_asap = isset($method['asap']) ? array('asap' => TRUE) : array();
- $result = area_pickup($target, array($key => TRUE) + $_asap);
- if ($result) {
- $sum[$key] = $result[$key];
- if (isset($method[$key]) && $sum[$key] > $method[$key]) {
- $is_spam[$key] = TRUE;
+ if ($_method) {
+ $_asap = isset($method['asap']) ? array('asap' => TRUE) : array();
+ $_result = area_pickup($target, $_method + $_asap);
+ $_asap = NULL;
+ } else {
+ $_result = FALSE;
+ }
+
+ if ($_result) {
+ foreach(array_keys($_method) as $key) {
+ if (isset($_result[$key])) {
+ $sum[$key] = $_result[$key];
+ if (isset($method[$key]) && $sum[$key] > $method[$key]) {
+ $is_spam[$key] = TRUE;
+ }
+ }
}
}
+
+ unset($_asap, $_method, $_result);
}
// Return if ...
if ($asap && $is_spam) return $progress;
+ // ----------------------------------------
// URI: Pickup
- $pickups = uri_pickup_normalize(spam_uri_pickup($target, $method));
+
+ $pickups = spam_uri_pickup($target, $method);
+
// Return if ...
if (empty($pickups)) return $progress;
+ // Normalize all
+ $pickups = uri_pickup_normalize($pickups);
+
+ // ----------------------------------------
+ // Pickup some part of URI
+
+ $hosts = array();
+ foreach ($pickups as $key => $pickup) {
+ $hosts[$key] = & $pickup['host'];
+ }
+
+ // ----------------------------------------
+ // URI: Bad host <pre-filter> (Separate good/bad hosts from $hosts)
+
+ if ((! $asap || ! $is_spam) && isset($method['badhost'])) {
+ $list = get_blocklist('pre');
+ $blocked = blocklist_distiller($hosts, array_keys($list), $asap);
+ foreach($list as $key => $type){
+ if (! $type) unset($blocked[$key]); // Ignore goodhost etc
+ }
+ unset($list);
+ if (! empty($blocked)) $is_spam['badhost'] = TRUE;
+ }
+
+ // Return if ...
+ if ($asap && $is_spam) return $progress;
+
+ // Remove blocked from $pickups
+ foreach(array_keys($pickups) as $key) {
+ if (! isset($hosts[$key])) {
+ unset($pickups[$key]);
+ }
+ }
+
+ // ----------------------------------------
// URI: Check quantity
+
$sum['quantity'] += count($pickups);
// URI quantity
if ((! $asap || ! $is_spam) && isset($method['quantity']) &&
$is_spam['quantity'] = TRUE;
}
+ // ----------------------------------------
// URI: used inside HTML anchor tag pair
+
if ((! $asap || ! $is_spam) && isset($method['uri_anchor'])) {
$key = 'uri_anchor';
foreach($pickups as $pickup) {
}
}
+ // ----------------------------------------
// URI: used inside 'BBCode' pair
+
if ((! $asap || ! $is_spam) && isset($method['uri_bbcode'])) {
$key = 'uri_bbcode';
foreach($pickups as $pickup) {
}
}
+ // ----------------------------------------
// URI: Uniqueness (and removing non-uniques)
+
if ((! $asap || ! $is_spam) && isset($method['non_uniquri'])) {
$uris = array();
// Return if ...
if ($asap && $is_spam) return $progress;
+ // ----------------------------------------
// Host: Uniqueness (uniq / non-uniq)
- foreach ($pickups as $pickup) $hosts[] = & $pickup['host'];
+
$hosts = array_unique($hosts);
- $sum['uniqhost'] += count($hosts);
+
+ if (isset($sum['uniqhost'])) $sum['uniqhost'] += count($hosts);
if ((! $asap || ! $is_spam) && isset($method['non_uniqhost'])) {
$sum['non_uniqhost'] = $sum['quantity'] - $sum['uniqhost'];
if ($sum['non_uniqhost'] > $method['non_uniqhost']) {
// Return if ...
if ($asap && $is_spam) return $progress;
+ // ----------------------------------------
// URI: Bad host (Separate good/bad hosts from $hosts)
- if ((! $asap || ! $is_spam) && isset($method['badhost'])) {
- // is_badhost()
- $list = get_blocklist('list');
- $blocked = blocklist_distiller($hosts, array_keys($list), $asap);
+ if ((! $asap || ! $is_spam) && isset($method['badhost'])) {
+ $list = get_blocklist('list');
+ $blocked = array_merge_leaves(
+ $blocked,
+ blocklist_distiller($hosts, array_keys($list), $asap),
+ FALSE
+ );
foreach($list as $key=>$type){
if (! $type) unset($blocked[$key]); // Ignore goodhost etc
}
unset($list);
-
if (! empty($blocked)) $is_spam['badhost'] = TRUE;
}
- return $progress;
-}
-
-// Count leaves (A leaf = value that is not an array, or an empty array)
-function array_count_leaves($array = array(), $count_empty = FALSE)
-{
- if (! is_array($array) || (empty($array) && $count_empty)) return 1;
-
- // Recurse
- $count = 0;
- foreach ($array as $part) {
- $count += array_count_leaves($part, $count_empty);
- }
- return $count;
-}
-
-// An array-leaves to a flat array
-function array_flat_leaves($array, $unique = TRUE)
-{
- if (! is_array($array)) return $array;
-
- $tmp = array();
- foreach(array_keys($array) as $key) {
- if (is_array($array[$key])) {
- // Recurse
- foreach(array_flat_leaves($array[$key]) as $_value) {
- $tmp[] = $_value;
- }
- } else {
- $tmp[] = & $array[$key];
- }
- }
-
- return $unique ? array_values(array_unique($tmp)) : $tmp;
-}
+ // Return if ...
+ //if ($asap && $is_spam) return $progress;
-// An array() to an array leaf
-function array_leaf($array = array('A', 'B', 'C.D'), $stem = FALSE, $edge = TRUE)
-{
- if (! is_array($array)) return $array;
-
- $leaf = array();
- $tmp = & $leaf;
- foreach($array as $arg) {
- if (! is_string($arg) && ! is_int($arg)) continue;
- $tmp[$arg] = array();
- $parent = & $tmp;
- $tmp = & $tmp[$arg];
- }
- if ($stem) {
- $parent[key($parent)] = & $edge;
- } else {
- $parent = key($parent);
- }
+ // ----------------------------------------
+ // End
- return $leaf; // array('A' => array('B' => 'C.D'))
+ return $progress;
}
-
// ---------------------
// Reporting
! is_array($progress['hosts']) ||
empty($progress['hosts'])) return '';
- $result = '';
-
// Generate a responsible $trie
$trie = array();
foreach($progress['hosts'] as $value) {
-
- // array('example.com', 'bar', 'foo')
+ // 'A.foo.bar.example.com'
$resp = whois_responsibility($value); // 'example.com'
- $rest = rtrim(substr($value, 0, - strlen($resp)), '.'); // 'foo.bar'
- if ($rest) {
- $parts = explode('.', delimiter_reverse('.' . $rest));
- array_unshift($parts, $resp);
+ if (empty($resp)) {
+ // One or more test, or do nothing here
+ $resp = strval($value);
+ $rest = '';
} else {
- $parts = array($resp, $rest);
+ $rest = rtrim(substr($value, 0, - strlen($resp)), '.'); // 'A.foo.bar'
}
-
- $trie = array_merge_recursive(
- $trie,
- array_leaf($parts, TRUE, $value)
- );
+ $trie = array_merge_leaves($trie, array($resp => array($rest => NULL)), FALSE);
}
- // Sort and flatten -- 'A.foo.bar.example.com, B.foo.bar.example.com'
- foreach(array_keys($trie) as $key) {
- if (is_array($trie[$key])) {
- ksort_by_domain($trie[$key]);
-
- $trie[$key] = implode(', ', array_flat_leaves($trie[$key]));
- //$trie[$key] = var_export($trie[$key], TRUE); // DEBUG
- }
- }
-
- ksort_by_domain($trie);
-
- // Format: From array('foobar' => 'foobar') to 'foobar'
- $tmp = array();
- foreach($trie as $key => $value) {
- if ($trie[$key] == $key) {
- // 'responsibility.example.com'
- $tmp[] = ' \'' . $key . '\',';
- } else {
- // 'subdomain-or-host.responsibility.example.com'
- $tmp[] = ' \'.' . $key . '\' => \'' . $trie[$key] . '\',';
- }
- unset($trie[$key]);
- }
-
- return 'array (' . "\n" . implode("\n", $tmp) . "\n" . ')';
-}
-
-// ksort() by domain
-function ksort_by_domain(& $array)
-{
- $sort = array();
- foreach(array_keys($array) as $key) {
- $sort[delimiter_reverse($key)] = $key;
- }
- ksort($sort, SORT_STRING);
+ // Format: var_export_shrink() -like output
$result = array();
- foreach($sort as $key) {
- $result[$key] = & $array[$key];
- }
- $array = $result;
-}
-
-// Check responsibility-root of the FQDN
-// 'foo.bar.example.com' => 'example.com' (.com has the last whois for it)
-// 'foo.bar.example.au' => 'example.au' (.au has the last whois for it)
-// 'foo.bar.example.edu.au' => 'example.edu.au' (.edu.au has the last whois for it)
-// 'foo.bar.example.act.edu.au' => 'example.act.edu.au' (.act.edu.au has the last whois for it)
-function whois_responsibility($fqdn = 'foo.bar.example.com', $parent = FALSE, $implicit = TRUE)
-{
- // Domains who have 2nd and/or 3rd level domains
- static $domain = array(
-
- // ccTLD: Australia
- // http://www.auda.org.au/
- // NIC : http://www.aunic.net/
- // Whois: http://www.ausregistry.com.au/
- 'au' => array(
- // .au Second Level Domains
- // http://www.auda.org.au/domains/
- 'asn' => TRUE,
- 'com' => TRUE,
- 'conf' => TRUE,
- 'csiro' => TRUE,
- 'edu' => array( // http://www.domainname.edu.au/
- // Geographic
- 'act' => TRUE,
- 'nt' => TRUE,
- 'nsw' => TRUE,
- 'qld' => TRUE,
- 'sa' => TRUE,
- 'tas' => TRUE,
- 'vic' => TRUE,
- 'wa' => TRUE,
- ),
- 'gov' => array(
- // Geographic
- 'act' => TRUE, // Australian Capital Territory
- 'nt' => TRUE, // Northern Territory
- 'nsw' => TRUE, // New South Wales
- 'qld' => TRUE, // Queensland
- 'sa' => TRUE, // South Australia
- 'tas' => TRUE, // Tasmania
- 'vic' => TRUE, // Victoria
- 'wa' => TRUE, // Western Australia
- ),
- 'id' => TRUE,
- 'net' => TRUE,
- 'org' => TRUE,
- 'info' => TRUE,
- ),
-
- // ccTLD: China
- // NIC : http://www.cnnic.net.cn/en/index/
- // Whois: http://ewhois.cnnic.cn/
- 'cn' => array(
- // Provisional Administrative Rules for Registration of Domain Names in China
- // http://www.cnnic.net.cn/html/Dir/2003/11/27/1520.htm
-
- // Organizational
- 'ac' => TRUE,
- 'com' => TRUE,
- 'edu' => TRUE,
- 'gov' => TRUE,
- 'net' => TRUE,
- 'org' => TRUE,
-
- // Geographic
- 'ah' => TRUE,
- 'bj' => TRUE,
- 'cq' => TRUE,
- 'fj' => TRUE,
- 'gd' => TRUE,
- 'gs' => TRUE,
- 'gx' => TRUE,
- 'gz' => TRUE,
- 'ha' => TRUE,
- 'hb' => TRUE,
- 'he' => TRUE,
- 'hi' => TRUE,
- 'hk' => TRUE,
- 'hl' => TRUE,
- 'hn' => TRUE,
- 'jl' => TRUE,
- 'js' => TRUE,
- 'jx' => TRUE,
- 'ln' => TRUE,
- 'mo' => TRUE,
- 'nm' => TRUE,
- 'nx' => TRUE,
- 'qh' => TRUE,
- 'sc' => TRUE,
- 'sd' => TRUE,
- 'sh' => TRUE,
- 'sn' => TRUE,
- 'sx' => TRUE,
- 'tj' => TRUE,
- 'tw' => TRUE,
- 'xj' => TRUE,
- 'xz' => TRUE,
- 'yn' => TRUE,
- 'zj' => TRUE,
- ),
-
- // ccTLD: South Korea
- // NIC : http://www.nic.or.kr/english/
- // Whois: http://whois.nida.or.kr/english/
- 'kr' => array(
- // .kr domain policy [appendix 1] : Qualifications for Second Level Domains
- // http://domain.nida.or.kr/eng/policy.jsp
-
- // Organizational
- 'co' => TRUE,
- 'ne ' => TRUE,
- 'or ' => TRUE,
- 're ' => TRUE,
- 'pe' => TRUE,
- 'go ' => TRUE,
- 'mil' => TRUE,
- 'ac' => TRUE,
- 'hs' => TRUE,
- 'ms' => TRUE,
- 'es' => TRUE,
- 'sc' => TRUE,
- 'kg' => TRUE,
-
- // Geographic
- 'seoul' => TRUE,
- 'busan' => TRUE,
- 'daegu' => TRUE,
- 'incheon' => TRUE,
- 'gwangju' => TRUE,
- 'daejeon' => TRUE,
- 'ulsan' => TRUE,
- 'gyeonggi' => TRUE,
- 'gangwon' => TRUE,
- 'chungbuk' => TRUE,
- 'chungnam' => TRUE,
- 'jeonbuk' => TRUE,
- 'jeonnam' => TRUE,
- 'gyeongbuk' => TRUE,
- 'gyeongnam' => TRUE,
- 'jeju' => TRUE,
- ),
-
- // ccTLD: Japan
- // NIC : http://jprs.co.jp/en/
- // Whois: http://whois.jprs.jp/en/
- 'jp' => array(
- // Guide to JP Domain Name
- // http://jprs.co.jp/en/jpdomain.html
-
- // Organizational
- 'ac' => TRUE,
- 'ad' => TRUE,
- 'co' => TRUE,
- 'go' => TRUE,
- 'gr' => TRUE,
- 'lg' => TRUE,
- 'ne' => TRUE,
- 'or' => TRUE,
-
- // Geographic
- //
- // Examples for 3rd level domains
- //'kumamoto' => array(
- // // http://www.pref.kumamoto.jp/link/list.asp#4
- // 'amakusa' => TRUE,
- // 'hitoyoshi' => TRUE,
- // 'jonan' => TRUE,
- // 'kumamoto' => TRUE,
- // ...
- //),
- 'aichi' => TRUE,
- 'akita' => TRUE,
- 'aomori' => TRUE,
- 'chiba' => TRUE,
- 'ehime' => TRUE,
- 'fukui' => TRUE,
- 'fukuoka' => TRUE,
- 'fukushima' => TRUE,
- 'gifu' => TRUE,
- 'gunma' => TRUE,
- 'hiroshima' => TRUE,
- 'hokkaido' => TRUE,
- 'hyogo' => TRUE,
- 'ibaraki' => TRUE,
- 'ishikawa' => TRUE,
- 'iwate' => TRUE,
- 'kagawa' => TRUE,
- 'kagoshima' => TRUE,
- 'kanagawa' => TRUE,
- 'kawasaki' => TRUE,
- 'kitakyushu'=> TRUE,
- 'kobe' => TRUE,
- 'kochi' => TRUE,
- 'kumamoto' => TRUE,
- 'kyoto' => TRUE,
- 'mie' => TRUE,
- 'miyagi' => TRUE,
- 'miyazaki' => TRUE,
- 'nagano' => TRUE,
- 'nagasaki' => TRUE,
- 'nagoya' => TRUE,
- 'nara' => TRUE,
- 'niigata' => TRUE,
- 'oita' => TRUE,
- 'okayama' => TRUE,
- 'okinawa' => TRUE,
- 'osaka' => TRUE,
- 'saga' => TRUE,
- 'saitama' => TRUE,
- 'sapporo' => TRUE,
- 'sendai' => TRUE,
- 'shiga' => TRUE,
- 'shimane' => TRUE,
- 'shizuoka' => TRUE,
- 'tochigi' => TRUE,
- 'tokushima' => TRUE,
- 'tokyo' => TRUE,
- 'tottori' => TRUE,
- 'toyama' => TRUE,
- 'wakayama' => TRUE,
- 'yamagata' => TRUE,
- 'yamaguchi' => TRUE,
- 'yamanashi' => TRUE,
- 'yokohama' => TRUE,
- ),
-
- // ccTLD: Ukraine
- // NIC : http://www.nic.net.ua/
- // Whois: http://whois.com.ua/
- 'ua' => array(
- // policy for alternative 2nd level domain names (a2ld)
- // http://www.nic.net.ua/doc/a2ld
- // http://whois.com.ua/
- 'cherkassy' => TRUE,
- 'chernigov' => TRUE,
- 'chernovtsy' => TRUE,
- 'ck' => TRUE,
- 'cn' => TRUE,
- 'com' => TRUE,
- 'crimea' => TRUE,
- 'cv' => TRUE,
- 'dn' => TRUE,
- 'dnepropetrovsk' => TRUE,
- 'donetsk' => TRUE,
- 'dp' => TRUE,
- 'edu' => TRUE,
- 'gov' => TRUE,
- 'if' => TRUE,
- 'ivano-frankivsk' => TRUE,
- 'kh' => TRUE,
- 'kharkov' => TRUE,
- 'kherson' => TRUE,
- 'kiev' => TRUE,
- 'kirovograd' => TRUE,
- 'km' => TRUE,
- 'kr' => TRUE,
- 'ks' => TRUE,
- 'lg' => TRUE,
- 'lugansk' => TRUE,
- 'lutsk' => TRUE,
- 'lviv' => TRUE,
- 'mk' => TRUE,
- 'net' => TRUE,
- 'nikolaev' => TRUE,
- 'od' => TRUE,
- 'odessa' => TRUE,
- 'org' => TRUE,
- 'pl' => TRUE,
- 'poltava' => TRUE,
- 'rovno' => TRUE,
- 'rv' => TRUE,
- 'sebastopol' => TRUE,
- 'sumy' => TRUE,
- 'te' => TRUE,
- 'ternopil' => TRUE,
- 'uz' => TRUE,
- 'uzhgorod' => TRUE,
- 'vinnica' => TRUE,
- 'vn' => TRUE,
- 'zaporizhzhe' => TRUE,
- 'zhitomir' => TRUE,
- 'zp' => TRUE,
- 'zt' => TRUE,
- ),
-
- // ccTLD: United Kingdom
- // NIC : http://www.nic.uk/
- 'uk' => array(
- // Second Level Domains
- // http://www.nic.uk/registrants/aboutdomainnames/sld/
- 'co' => TRUE,
- 'ltd' => TRUE,
- 'me' => TRUE,
- 'net' => TRUE,
- 'nic' => TRUE,
- 'org' => TRUE,
- 'plc' => TRUE,
- 'sch' => TRUE,
-
- // Delegated Second Level Domains
- // http://www.nic.uk/registrants/aboutdomainnames/sld/delegated/
- 'ac' => TRUE,
- 'gov' => TRUE,
- 'mil' => TRUE,
- 'mod' => TRUE,
- 'nhs' => TRUE,
- 'police' => TRUE,
- ),
-
- // ccTLD: United States of America
- // NIC : http://nic.us/
- // Whois: http://whois.us/
- 'us' => array(
- // See RFC1480
-
- // Organizational
- 'dni',
- 'fed',
- 'isa',
- 'kids',
- 'nsn',
-
- // Geographical
- // United States Postal Service: State abbreviations (for postal codes)
- // http://www.usps.com/ncsc/lookups/abbreviations.html
- 'ak' => TRUE, // Alaska
- 'al' => TRUE, // Alabama
- 'ar' => TRUE, // Arkansas
- 'as' => TRUE, // American samoa
- 'az' => TRUE, // Arizona
- 'ca' => TRUE, // California
- 'co' => TRUE, // Colorado
- 'ct' => TRUE, // Connecticut
- 'dc' => TRUE, // District of Columbia
- 'de' => TRUE, // Delaware
- 'fl' => TRUE, // Florida
- 'fm' => TRUE, // Federated states of Micronesia
- 'ga' => TRUE, // Georgia
- 'gu' => TRUE, // Guam
- 'hi' => TRUE, // Hawaii
- 'ia' => TRUE, // Iowa
- 'id' => TRUE, // Idaho
- 'il' => TRUE, // Illinois
- 'in' => TRUE, // Indiana
- 'ks' => TRUE, // Kansas
- 'ky' => TRUE, // Kentucky
- 'la' => TRUE, // Louisiana
- 'ma' => TRUE, // Massachusetts
- 'md' => TRUE, // Maryland
- 'me' => TRUE, // Maine
- 'mh' => TRUE, // Marshall Islands
- 'mi' => TRUE, // Michigan
- 'mn' => TRUE, // Minnesota
- 'mo' => TRUE, // Missouri
- 'mp' => TRUE, // Northern mariana islands
- 'ms' => TRUE, // Mississippi
- 'mt' => TRUE, // Montana
- 'nc' => TRUE, // North Carolina
- 'nd' => TRUE, // North Dakota
- 'ne' => TRUE, // Nebraska
- 'nh' => TRUE, // New Hampshire
- 'nj' => TRUE, // New Jersey
- 'nm' => TRUE, // New Mexico
- 'nv' => TRUE, // Nevada
- 'ny' => TRUE, // New York
- 'oh' => TRUE, // Ohio
- 'ok' => TRUE, // Oklahoma
- 'or' => TRUE, // Oregon
- 'pa' => TRUE, // Pennsylvania
- 'pr' => TRUE, // Puerto Rico
- 'pw' => TRUE, // Palau
- 'ri' => TRUE, // Rhode Island
- 'sc' => TRUE, // South Carolina
- 'sd' => TRUE, // South Dakota
- 'tn' => TRUE, // Tennessee
- 'tx' => TRUE, // Texas
- 'ut' => TRUE, // Utah
- 'va' => TRUE, // Virginia
- 'vi' => TRUE, // Virgin Islands
- 'vt' => TRUE, // Vermont
- 'wa' => TRUE, // Washington
- 'wi' => TRUE, // Wisconsin
- 'wv' => TRUE, // West Virginia
- 'wy' => TRUE, // Wyoming
- ),
- );
-
- if (! is_string($fqdn)) return '';
-
- $result = array();
- $dcursor = & $domain;
- $array = array_reverse(explode('.', $fqdn));
- $i = 0;
- while(TRUE) {
- $acursor = $array[$i];
- if (is_array($dcursor) && isset($dcursor[$acursor])) {
- $result[] = & $array[$i];
- $dcursor = & $dcursor[$acursor];
+ ksort_by_domain($trie);
+ foreach(array_keys($trie) as $key) {
+ ksort_by_domain($trie[$key]);
+ if (count($trie[$key]) == 1 && key($trie[$key]) == '') {
+ // Just one 'responsibility.example.com'
+ $result[] = ' \'' . $key . '\',';
} else {
- if (! $parent && isset($acursor)) {
- $result[] = & $array[$i]; // Whois servers must know this subdomain
+ // One subdomain-or-host, or several ones
+ $subs = array();
+ foreach(array_keys($trie[$key]) as $sub) {
+ if ($sub == '') {
+ $subs[] = $key; // 'example.com'
+ } else {
+ $subs[] = $sub . '. '; // 'A.foo.bar. '
+ }
}
- break;
+ $result[] = ' \'' . $key . '\' => \'' . implode(', ', $subs) . '\',';
}
- ++$i;
- }
-
- // Implicit responsibility: Top-Level-Domains must not be yours
- // 'bar.foo.something' => 'foo.something'
- if ($implicit && count($result) == 1 && count($array) > 1) {
- $result[] = & $array[1];
+ unset($trie[$key]);
}
-
- return $result ? implode('.', array_reverse($result)) : '';
+ return
+ 'array (' . "\n" .
+ implode("\n", $result) . "\n" .
+ ')';
}
function spam_dispose()
{
get_blocklist(NULL);
+ whois_responsibility(NULL);
}
// Common bahavior for blocking
// NOTE: Call this function from various blocking feature, to disgueise the reason 'why blocked'
function spam_exit($mode = '', $data = array())
{
-
$exit = TRUE;
+
switch ($mode) {
case '':
echo("\n");
break;
case 'dump':
echo('<pre>' . "\n");
- echo htmlspecialchars(var_export($data, TRUE));
+ echo htmlsc(var_export($data, TRUE));
echo('</pre>' . "\n");
break;
};
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