<?php
+/**
+ * Functions to help implement an external link filter for spam control.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
/**
* Some functions to help implement an external link filter for spam control.
- *
+ *
* @todo implement the filter. Currently these are just some functions to help
* maintenance/cleanupSpam.php remove links to a single specified domain. The
* next thing is to implement functions for checking a given page against a big
class LinkFilter {
/**
- * Check whether $text contains a link to $filterEntry
+ * Check whether $content contains a link to $filterEntry
*
- * @param $text String: text to check
+ * @param $content Content: content to check
* @param $filterEntry String: domainparts, see makeRegex() for more details
* @return Integer: 0 if no match or 1 if there's at least one match
*/
- static function matchEntry( $text, $filterEntry ) {
+ static function matchEntry( Content $content, $filterEntry ) {
+ if ( !( $content instanceof TextContent ) ) {
+ //TODO: handle other types of content too.
+ // Maybe create ContentHandler::matchFilter( LinkFilter ).
+ // Think about a common base class for LinkFilter and MagicWord.
+ return 0;
+ }
+
+ $text = $content->getNativeData();
+
$regex = LinkFilter::makeRegex( $filterEntry );
return preg_match( $regex, $text );
}
return $regex;
}
- /**
- * Make a string to go after an SQL LIKE, which will match the specified
- * string. There are several kinds of filter entry:
- * *.domain.com - Produces http://com.domain.%, matches domain.com
- * and www.domain.com
- * domain.com - Produces http://com.domain./%, matches domain.com
- * or domain.com/ but not www.domain.com
- * *.domain.com/x - Produces http://com.domain.%/x%, matches
- * www.domain.com/xy
- * domain.com/x - Produces http://com.domain./x%, matches
- * domain.com/xy but not www.domain.com/xy
- *
- * Asterisks in any other location are considered invalid.
- *
- * @param $filterEntry String: domainparts
- * @param $prot String: protocol
- * @return String
- * @deprecated Use makeLikeArray() and pass result to Database::buildLike() instead
- */
- public static function makeLike( $filterEntry , $prot = 'http://' ) {
- wfDeprecated( __METHOD__ );
-
- $like = self::makeLikeArray( $filterEntry , $prot );
- if ( !$like ) {
- return false;
- }
- $dbw = wfGetDB( DB_MASTER );
- $s = $dbw->buildLike( $like );
- $m = false;
- if ( preg_match( "/^ *LIKE '(.*)' *$/", $s, $m ) ) {
- return $m[1];
- } else {
- throw new MWException( __METHOD__.': this DBMS is not supported by this function.' );
- }
- }
-
/**
* Make an array to be used for calls to DatabaseBase::buildLike(), which
* will match the specified string. There are several kinds of filter entry:
// Reverse the labels in the hostname, convert to lower case
// For emails reverse domainpart only
if ( $prot == 'mailto:' && strpos($host, '@') ) {
- // complete email adress
+ // complete email adress
$mailparts = explode( '@', $host );
$domainpart = strtolower( implode( '.', array_reverse( explode( '.', $mailparts[1] ) ) ) );
$host = $domainpart . '@' . $mailparts[0];
$like = array( "$prot$host", $db->anyString() );
} elseif ( $prot == 'mailto:' ) {
// domainpart of email adress only. do not add '.'
- $host = strtolower( implode( '.', array_reverse( explode( '.', $host ) ) ) );
- $like = array( "$prot$host", $db->anyString() );
+ $host = strtolower( implode( '.', array_reverse( explode( '.', $host ) ) ) );
+ $like = array( "$prot$host", $db->anyString() );
} else {
- $host = strtolower( implode( '.', array_reverse( explode( '.', $host ) ) ) );
+ $host = strtolower( implode( '.', array_reverse( explode( '.', $host ) ) ) );
if ( substr( $host, -1, 1 ) !== '.' ) {
$host .= '.';
}
* Filters an array returned by makeLikeArray(), removing everything past first pattern placeholder.
*
* @param $arr array: array to filter
- * @return filtered array
+ * @return array filtered array
*/
public static function keepOneWildcard( $arr ) {
if( !is_array( $arr ) ) {