Changeset 50370 for trunk/src/wp-includes/robots-template.php

Timestamp:

02/16/2021 11:36:44 PM (4 years ago)

Author:

peterwilsoncc

Message:

General: Add noindex robots meta tag to search results.

Prevent search engines indexing internal search results to protect against reflected web spam attacks.

Props abagtcs, audrasjb, ayeshrajans, burtrw, johnbillion, jonoaldersonwp, peterwilsoncc, poena, sabernhardt, xkon.
Fixes #52457

File:

• trunk/src/wp-includes/robots-template.php (modified) (1 diff)

trunk/src/wp-includes/robots-template.php

@@ -89 +89 @@
 
 /**
+ * Adds noindex to the robots meta tag if a search is being performed.
+ *
+ * If a search is being performed then noindex will be output to
+ * tell web robots not to index the page content. Add this to the
+ * {@see 'wp_robots'} filter.
+ *
+ * Typical usage is as a {@see 'wp_robots'} callback:
+ *
+ *     add_filter( 'wp_robots', 'wp_robots_noindex_search' );
+ *
+ * @since 5.7.0
+ * @see wp_robots_no_robots()
+ *
+ * @param array $robots Associative array of robots directives.
+ * @return array Filtered robots directives.
+ */
+function wp_robots_noindex_search( array $robots ) {
+    if ( is_search() ) {
+        return wp_robots_no_robots( $robots );
+    }
+
+    return $robots;
+}
+
+/**
  * Adds noindex to the robots meta tag.
  *