<?php
-// $Id: spam.php,v 1.62 2006/12/09 12:18:52 henoheno Exp $
+// $Id: spam.php,v 1.63 2006/12/10 02:31:18 henoheno Exp $
// Copyright (C) 2006 PukiWiki Developers Team
// License: GPL v2 or (at your option) any later version
$_uri['fragment']
);
}
-
+
// Area offset for area_measure()
$_uri['area']['offset'] = $offset;
}
}
// ---------------------
+// Area pickup
+
+// Pickup all of markup areas
+function area_pickup($string = '', $method = array())
+{
+ $area = array();
+
+ // Anchor tags by preg_match_all()
+ // [OK] <a href=></a>
+ // [OK] <a href= >Good site!</a>
+ // [OK] <a href= "#" >test</a>
+ // [OK] <a href="http://nasty.example.com">visit http://nasty.example.com/</a>
+ // [OK] <a href=\'http://nasty.example.com/\' >discount foobar</a>
+ // [NG] <a href="http://ng.example.com">visit http://ng.example.com _not_ended_
+ if (isset($method['anchor'])) {
+ $areas = array();
+ preg_match_all('#<a\b[^>]*\bhref\b[^>]*>.*?</a\b[^>]*(>)#i',
+ $string, $areas, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
+ //var_dump(recursive_map('htmlspecialchars', $areas));
+ foreach(array_keys($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['anchor'] = $areas;
+ }
+
+ // phpBB's "BBCode" by preg_match_all()
+ // [OK] [url][/url]
+ // [OK] [url]http://nasty.example.com/[/url]
+ // [OK] [link]http://nasty.example.com/[/link]
+ // [OK] [url=http://nasty.example.com]visit http://nasty.example.com/[/url]
+ // [OK] [link http://nasty.example.com/]buy something[/link]
+ if (isset($method['bbcode'])) {
+ $areas = array();
+ preg_match_all('#\[(url|link)\b[^\]]*\].*?\[/\1\b[^\]]*(\])#i',
+ $string, $areas, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
+ //var_dump(recursive_map('htmlspecialchars', $areas));
+ foreach(array_keys($areas) as $_area) {
+ $areas[$_area] = array(
+ $areas[$_area][0][1], // Area start ([url])
+ $areas[$_area][2][1], // Area end ([/url])
+ );
+ }
+ if (! empty($areas)) $area['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 $area;
+}
+
+// If in doubt, it's a little doubtful
+function area_measure($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] += $belief;
+ }
+ }
+ }
+ }
+}
+
+// ---------------------
// Spam-uri pickup
// Domain exposure callback (See spam_uri_pickup_preprocess())
// Area elevation for '(especially external)link' intension
if (! empty($array)) {
-
- $area_shadow = array();
- foreach(array_keys($array) as $key){
- $area_shadow[$key] = & $array[$key]['area'];
- $area_shadow[$key]['anchor'] = 0;
- $area_shadow[$key]['bbcode'] = 0;
- }
-
- // Anchor tags by preg_match_all()
- // [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_
- // [NG] <a href= >Good site!</a> <a href= "#" >test</a>
- if (isset($area['anchor'])) {
- $areas = array();
- preg_match_all('#<a\b[^>]*href[^>]*>.*?</a\b[^>]*(>)#i',
- $string, $areas, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
- //var_dump(recursive_map('htmlspecialchars', $areas));
- foreach(array_keys($areas) as $_area) {
- $areas[$_area] = array(
- $areas[$_area][0][1], // Area start (<a href>)
- $areas[$_area][1][1], // Area end (</a>)
- );
+ $areas = area_pickup($string, $area);
+ if (! empty($areas)) {
+ $area_shadow = array();
+ foreach(array_keys($array) as $key){
+ $area_shadow[$key] = & $array[$key]['area'];
+ $area_shadow[$key]['anchor'] = 0;
+ $area_shadow[$key]['bbcode'] = 0;
}
- area_measure($areas, $area_shadow, 1, 'anchor');
- }
-
- // phpBB's "BBCode" by preg_match_all()
- // [url]http://nasty.example.com/[/url]
- // [link]http://nasty.example.com/[/link]
- // [url=http://nasty.example.com]visit http://nasty.example.com/[/url]
- // [link http://nasty.example.com/]buy something[/link]
- // ?? [url=][/url]
- if (isset($area['bbcode'])) {
- $areas = array();
- preg_match_all('#\[(url|link)\b[^\]]*\].*?\[/\1\b[^\]]*(\])#i',
- $string, $areas, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
- //var_dump(recursive_map('htmlspecialchars', $areas));
- foreach(array_keys($areas) as $_area) {
- $areas[$_area] = array(
- $areas[$_area][0][1], // Area start ([url])
- $areas[$_area][2][1], // Area end ([/url])
- );
+ if (isset($areas['anchor'])) {
+ area_measure($areas['anchor'], $area_shadow, 1, 'anchor');
+ }
+ if (isset($areas['bbcode'])) {
+ area_measure($areas['bbcode'], $area_shadow, 1, 'bbcode');
}
- area_measure($areas, $area_shadow, 1, 'bbcode');
}
-
- // Various Wiki syntax
- // [text_or_uri>text_or_uri]
- // [text_or_uri:text_or_uri]
- // [text_or_uri|text_or_uri]
- // [text_or_uri->text_or_uri]
- // [text_or_uri text_or_uri] // MediaWiki
- // MediaWiki: [http://nasty.example.com/ visit http://nasty.example.com/]
-
- // Remove 'offset's for area_measure()
- foreach(array_keys($array) as $key)
- unset($array[$key]['area']['offset']);
}
+ // Remove 'offset's for area_measure()
+ foreach(array_keys($array) as $key)
+ unset($array[$key]['area']['offset']);
+
return $array;
}
-// If in doubt, it's a little doubtful
-function area_measure($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;
- }
- }
- }
- }
-}
// ---------------------
// Normalization
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