Changeset 8050

Timestamp:

01/09/2019 12:40:52 AM (6 years ago)

Author:

dd32

Message:

Support Forums: Add a canonical redirect for .../page/[01]/ > .../ as these display the same content. This avoids duplicate content SEO issues.

Fixes #3944.

File:

• sites/trunk/wordpress.org/public_html/wp-content/plugins/support-forums/inc/class-performance-optimizations.php (modified) (2 diffs)

sites/trunk/wordpress.org/public_html/wp-content/plugins/support-forums/inc/class-performance-optimizations.php

@@ -33 +33 @@
         // Redirect search results.
         add_action( 'bbp_template_redirect', array( $this, 'redirect_search_results_to_google_search' ) );
+
+        // Redirect (.+)/page/[01]/ and (.+)?paged=[01] to $1
+        add_action( 'bbp_template_redirect', array( $this, 'redirect_page_zero_one' ) );
 
         // REST API.
@@ -122 +125 @@
         wp_safe_redirect( $search_url );
         exit;
+    }
+
+    /**
+     * Redirects /page/[01]/, and /?paged=[01] requests to the archive root.
+     */
+    public function redirect_page_zero_one() {
+        global $wp_query;
+
+        if (
+            isset( $wp_query->query['paged'] ) &&
+            in_array( $wp_query->query['paged'], [ 0, 1 ] ) &&
+            'POST' !== $_SERVER['REQUEST_METHOD']
+        ) {
+            // Generate the current URL.
+            $current_url = $_SERVER['REQUEST_URI'];
+            // Remove the path components.
+            $current_url = preg_replace( '!^' . preg_quote( parse_url( home_url('/'), PHP_URL_PATH ), '!' ) . '!i', '', $current_url );
+            $current_url = home_url( $current_url );
+
+            // Remove any paged items
+            $pageless_url = $current_url;
+            $pageless_url = remove_query_arg( 'paged', $pageless_url );
+            $pageless_url = preg_replace( '!/page/[01]/?!i', '/', $pageless_url );
+
+            if ( $pageless_url !== $current_url ) {
+                wp_safe_redirect( $pageless_url );
+                exit;
+            }
+        }
     }