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Feature #4 Regular expression filters

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This commit is contained in:
Stefan Kalscheuer
2016-10-09 17:59:30 +02:00
parent e80040fb7e
commit 25b16746b2
6 changed files with 85 additions and 31 deletions
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37
inc/statifyblacklist.class.php
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@ -101,7 +101,8 @@ class StatifyBlacklist {
array(
'active_referer' => 0,
'cron_referer' => 0,
'referer' => array()
'referer' => array(),
'referer_regexp' => 0
)
);
}
@ -112,7 +113,7 @@ class StatifyBlacklist {
* @return TRUE if referer matches blacklist.
*
* @since 1.0.0
* @changed 1.2.0
* @changed 1.3.0
*/
public static function apply_blacklist_filter() {
/* Skip if blacklist is inactive */
@ -120,20 +121,26 @@ class StatifyBlacklist {
return false;
}
/* Extract relevant domain parts */
$referer = strtolower( ( isset( $_SERVER['HTTP_REFERER'] ) ? parse_url( $_SERVER['HTTP_REFERER'], PHP_URL_HOST ) : '' ) );
$referer = explode( '.', $referer );
// if ( count( $referer ) > 1 ) {
// $referer = implode( '.', array_slice( $referer, - 2 ) );
// } else {
$referer = implode( '.', $referer );
// }
/* Regular Expression filtering since 1.3.0 */
if ( isset(self::$_options['referer_regexp']) && self::$_options['referer_regexp'] > 0 ) {
/* Get full referer string */
$referer = ( isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : '' );
/* Merge given regular expressions into one */
$regexp = '/' . implode( "|", array_keys( self::$_options['referer'] ) ) . '/';
if ( self::$_options['referer_regexp'] == 2 ) {
$regexp .= 'i';
}
/* Check blacklist */
return preg_match( $regexp, $referer) === 1;
} else {
/* Extract relevant domain parts */
$referer = strtolower( ( isset( $_SERVER['HTTP_REFERER'] ) ? parse_url( $_SERVER['HTTP_REFERER'], PHP_URL_HOST ) : '' ) );
/* Get blacklist */
$blacklist = self::$_options['referer'];
/* Get blacklist */
$blacklist = self::$_options['referer'];
/* Check blacklist */
return isset( $blacklist[ $referer ] );
/* Check blacklist */
return isset( $blacklist[ $referer ] );
}
}
}