From e7e2ef639c1eb2d4699386fa68101f21b62e6eec Mon Sep 17 00:00:00 2001
From: Stefan Kalscheuer <stefan@stklcode.de>
Date: Mon, 10 Oct 2016 10:00:01 +0200
Subject: [PATCH] Corrections for case-(in)sensitive DB cleanup

---
 inc/statifyblacklist_admin.class.php | 9 ++++-----
 views/settings_page.php              | 2 +-
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/inc/statifyblacklist_admin.class.php b/inc/statifyblacklist_admin.class.php
index 07f9293..72b4c89 100644
--- a/inc/statifyblacklist_admin.class.php
+++ b/inc/statifyblacklist_admin.class.php
@@ -126,10 +126,7 @@ class StatifyBlacklist_Admin extends StatifyBlacklist {
 
 		if ( isset( self::$_options['referer_regexp'] ) && self::$_options['referer_regexp'] > 0 ) {
 			/* Merge given regular expressions into one */
-			$refererRegexp = '/' . implode( "|", array_keys( self::$_options['referer'] ) ) . '/';
-			if ( self::$_options['referer_regexp'] == 2 ) {
-				$refererRegexp .= 'i';
-			}
+			$refererRegexp = implode( "|", array_keys( self::$_options['referer'] ) );
 		} else {
 			/* Sanitize URLs */
 			$referer = self::sanitizeURLs( self::$_options['referer'] );
@@ -141,7 +138,9 @@ class StatifyBlacklist_Admin extends StatifyBlacklist {
 		if ( ! empty( $refererRegexp ) ) {
 			/* Execute filter on database */
 			$wpdb->query(
-				$wpdb->prepare( "DELETE FROM `$wpdb->statify` WHERE referrer REGEXP %s", $refererRegexp )
+				$wpdb->prepare( "DELETE FROM `$wpdb->statify` WHERE "
+				                . ( ( self::$_options['referer_regexp'] == 1 ) ? " BINARY " : "" )
+				                . "referrer REGEXP %s", $refererRegexp )
 			);
 
 			/* Optimize DB */
diff --git a/views/settings_page.php b/views/settings_page.php
index f250e0e..bfb940b 100755
--- a/views/settings_page.php
+++ b/views/settings_page.php
@@ -83,6 +83,7 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
 			<li>
 				<label for="statify-blacklist_referer_regexp">
 					<?php esc_html_e( 'Use regular expressions', 'statify-blacklist' ); ?>:
+					<br />
 					<select name="statifyblacklist[referer_regexp]" id="statifyblacklist_referer_regexp">
 						<option value="0" <?php selected( StatifyBlacklist::$_options['referer_regexp'], 0 ); ?>>
 							<?php esc_html_e( 'Disabled', 'statify-blacklist' ); ?>
@@ -94,7 +95,6 @@ if ( ! empty( $_POST['statifyblacklist'] ) ) {
 							<?php esc_html_e( 'Case-insensitive', 'statify-blacklist' ); ?>
 						</option>
 					</select>
-					<br />
 					<small>(<?php esc_html_e( 'Performance slower than standard domain filter. Recommended for cron or manual execition only.', 'statify-blacklist' ); ?>)</small>
 				</label>
 			</li>