Ticket #3395: 3395.2.diff

akismet.php

@@ -68 +68 @@
                 // Update post meta
                 add_action( 'wp_insert_post', array( $this, 'update_post_meta' ), 10, 2 );
 
+                // Cleanup
+                add_action( 'akismet_scheduled_delete', array( $this, 'delete_old_spam' ) );
+                add_action( 'akismet_scheduled_delete', array( $this, 'delete_old_spam_meta' ) );
+                add_action( 'akismet_scheduled_delete', array( $this, 'delete_orphaned_spam_meta' ) );
+
                 // Admin
                 if ( is_admin() ) {
                         add_action( 'add_meta_boxes', array( $this, 'add_metaboxes' ) );
@@ -954 +959 @@
 
                 <?php
         }
+
+        /**
+         * Delete old spam topics & replies from the queue after a few days
+         * (determined by `_bbp_akismet_delete_spam_interval` filter).
+         *
+         * @since 2.7.0 bbPress (r7203)
+         *
+         * @global wpdb $wpdb
+         */
+        public function delete_old_spam() {
+                global $wpdb;
+
+                /**
+                 * Determines how many posts will be deleted in each batch.
+                 *
+                 * @param int The default as defined by AKISMET_DELETE_LIMIT (also used
+                 *            in Akismet WordPress plugin).
+                 */
+                $delete_limit = (int) apply_filters( '_bbp_akismet_delete_spam_limit',
+                        defined( 'AKISMET_DELETE_LIMIT' )
+                                ? AKISMET_DELETE_LIMIT
+                                : 10000
+                );
+
+                // Validate the deletion limit
+                $delete_limit = max( 1, intval( $delete_limit ) );
+
+                /**
+                 * Determines how many days a piece of spam will be left in the Spam
+                 * queue before being deleted.
+                 *
+                 * @param int The default number of days.
+                 */
+                $delete_interval = (int) apply_filters( '_bbp_akismet_delete_spam_interval', 15 );
+
+                // Validate the deletion interval
+                $delete_interval = max( 1, intval( $delete_interval ) );
+
+                // Setup the query
+                $sql = "SELECT id FROM {$wpdb->posts} WHERE post_type IN ('topic', 'reply') AND post_status = 'spam' AND DATE_SUB(NOW(), INTERVAL %d DAY) > post_date_gmt LIMIT %d";
+
+                // Query loop of topic & reply IDs
+                while ( $spam_ids = $wpdb->get_col( $wpdb->prepare( $sql, $delete_interval, $delete_limit ) ) ) {
+
+                        // Exit loop if no spam IDs
+                        if ( empty( $spam_ids ) ) {
+                                break;
+                        }
+
+                        // Reset queries
+                        $wpdb->queries = array();
+
+                        // Loop through each of the topic/reply IDs
+                        foreach ( $spam_ids as $spam_id ) {
+
+                                /**
+                                 * Perform a single action on the single topic/reply ID for
+                                 * simpler batch processing.
+                                 *
+                                 * Maybe we should run the bbp_delete_topic or bbp_delete_reply
+                                 * actions here, too?
+                                 *
+                                 * @param string The current function.
+                                 * @param int    The current topic/reply ID.
+                                 */
+                                do_action( '_bbp_akismet_batch_delete', __FUNCTION__, $spam_id );
+                        }
+
+                        // Prepared as strings since id is an unsigned BIGINT, and using %
+                        // will constrain the value to the maximum signed BIGINT.
+                        $format_string = implode( ", ", array_fill( 0, count( $spam_ids ), '%s' ) );
+
+                        // Run the delete queries
+                        $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->posts} WHERE post_id IN ( " . $format_string . " )", $spam_ids ) );
+                        $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->postmeta} WHERE post_id IN ( " . $format_string . " )", $spam_ids ) );
+
+                        // Clean the post cache for these topics & replies
+                        clean_post_cache( $spam_ids );
+
+                        /**
+                         * Single action that encompasses all topic/reply IDs after the
+                         * delete queries have been run.
+                         *
+                         * @param int   Count of topic/reply IDs
+                         * @param array Array of topic/reply IDs
+                         */
+                        do_action( '_bbp_akismet_delete_spam_count', count( $spam_ids ), $spam_ids );
+                }
+
+                /**
+                 * Determines whether tables should be optimized.
+                 *
+                 * @param int Random number between 1 and 5000.
+                 */
+                $optimize = (int) apply_filters( '_bbp_akismet_optimize_tables', mt_rand( 1, 5000 ), array( $wpdb->posts, $wpdb->postmeta ) );
+
+                // Lucky number 11
+                if ( 11 === $optimize ) {
+                        $wpdb->query( "OPTIMIZE TABLE {$wpdb->posts}" );
+                        $wpdb->query( "OPTIMIZE TABLE {$wpdb->postmeta}" );
+                }
+        }
+
+        /**
+         * Delete the `_bbp_akismet_as_submitted` meta keys after a while, since
+         * they are large and not useful in the long term.
+         *
+         * @since 2.7.0 bbPress (r7203)
+         *
+         * @global wpdb $wpdb
+         */
+        public function delete_old_spam_meta() {
+                global $wpdb;
+
+                /**
+                 * Determines how many days a piece of spam will be left in the Spam
+                 * queue before being deleted.
+                 *
+                 * @param int The default number of days.
+                 */
+                $interval = (int) apply_filters( '_bbp_akismet_delete_spam_meta_interval', 15 );
+
+                // Validate the deletion interval
+                $interval = max( 1, intval( $interval ) );
+
+                // Setup the query
+                $sql = "SELECT m.post_id FROM {$wpdb->postmeta} as m INNER JOIN {$wpdb->posts} as p ON m.post_id = p.id WHERE m.meta_key = '_bbp_akismet_as_submitted' AND DATE_SUB(NOW(), INTERVAL %d DAY) > p.post_date_gmt LIMIT 10000";
+
+                // Query loop of topic & reply IDs
+                while ( $spam_ids = $wpdb->get_col( $wpdb->prepare( $sql, $interval ) ) ) {
+
+                        // Exit loop if no spam IDs
+                        if ( empty( $spam_ids ) ) {
+                                break;
+                        }
+
+                        // Reset queries
+                        $wpdb->queries = array();
+
+                        // Loop through each of the topic/reply IDs
+                        foreach ( $spam_ids as $spam_id ) {
+
+                                // Delete the as_submitted meta data
+                                delete_post_meta( $spam_id, '_bbp_akismet_as_submitted' );
+
+                                /**
+                                 * Perform a single action on the single topic/reply ID for
+                                 * simpler batch processing.
+                                 *
+                                 * @param string The current function.
+                                 * @param int    The current topic/reply ID.
+                                 */
+                                do_action( '_bbp_akismet_batch_delete', __FUNCTION__, $spam_id );
+                        }
+
+                        /**
+                         * Single action that encompasses all topic/reply IDs after the
+                         * delete queries have been run.
+                         *
+                         * @param int   Count of topic/reply IDs
+                         * @param array Array of topic/reply IDs
+                         */
+                        do_action( '_bbp_akismet_delete_spam_meta_count', count( $spam_ids ), $spam_ids );
+                }
+
+                // Maybe optimize
+                $this->maybe_optimize_postmeta();
+        }
+
+        /**
+         * Clear out posts meta that no longer have corresponding posts in the database
+         *
+         * @since 2.7.0 bbPress (r7203)
+         *
+         * @global wpdb $wpdb
+         */
+        public function delete_orphaned_spam_meta() {
+                global $wpdb;
+
+                $last_meta_id = 0;
+
+                // Start time (float)
+                $start_time = isset( $_SERVER['REQUEST_TIME_FLOAT'] )
+                        ? (float) $_SERVER['REQUEST_TIME_FLOAT']
+                        : microtime( true );
+
+                // Maximum time
+                $max_exec_time = (float) max( ini_get( 'max_execution_time' ) - 5, 3 );
+
+                // Setup the query
+                $sql = "SELECT m.meta_id, m.post_id, m.meta_key FROM {$wpdb->postmeta} as m LEFT JOIN {$wpdb->posts} as p ON m.post_id = p.id WHERE p.id IS NULL AND m.meta_id > %d ORDER BY m.meta_id LIMIT 1000";
+
+                // Query loop of topic & reply IDs
+                while ( $spam_meta_results = $wpdb->get_results( $wpdb->prepare( $sql, $last_meta_id ) ) ) {
+
+                        // Exit loop if no spam IDs
+                        if ( empty( $spam_meta_results ) ) {
+                                break;
+                        }
+
+                        // Reset queries
+                        $wpdb->queries = array();
+
+                        // Reset deleted meta count
+                        $spam_meta_deleted = array();
+
+                        // Loop through each of the metas
+                        foreach ( $spam_meta_results as $spam_meta ) {
+
+                                // Skip if not an Akismet key
+                                if ( 'akismet_' !== substr( $spam_meta->meta_key, 0, 8 ) ) {
+                                        continue;
+                                }
+
+                                // Delete the meta
+                                delete_post_meta( $spam_meta->post_id, $spam_meta->meta_key );
+
+                                /**
+                                 * Perform a single action on the single topic/reply ID for
+                                 * simpler batch processing.
+                                 *
+                                 * @param string The current function.
+                                 * @param int    The current topic/reply ID.
+                                 */
+                                do_action( '_bbp_akismet_batch_delete', __FUNCTION__, $spam_meta );
+
+                                // Stash the meta ID being deleted
+                                $spam_meta_deleted[] = $last_meta_id = $spam_meta->meta_id;
+                        }
+
+                        /**
+                         * Single action that encompasses all topic/reply IDs after the
+                         * delete queries have been run.
+                         *
+                         * @param int   Count of spam meta IDs
+                         * @param array Array of spam meta IDs
+                         */
+                        do_action( '_bbp_akismet_delete_spam_meta_count', count( $spam_meta_deleted ), $spam_meta_deleted );
+
+                        // Break if getting close to max_execution_time.
+                        if ( ( microtime( true ) - $start_time ) > $max_exec_time ) {
+                                break;
+                        }
+                }
+
+                // Maybe optimize
+                $this->maybe_optimize_postmeta();
+        }
+
+        /**
+         * Maybe OPTIMIZE the _postmeta database table.
+         *
+         * @since 2.7.0 bbPress (r7203)
+         *
+         * @global wpdb $wpdb
+         */
+        private function maybe_optimize_postmeta() {
+                global $wpdb;
+
+                /**
+                 * Determines whether tables should be optimized.
+                 *
+                 * @param int Random number between 1 and 5000.
+                 */
+                $optimize = (int) apply_filters( '_bbp_akismet_optimize_table', mt_rand( 1, 5000 ), $wpdb->postmeta );
+
+                // Lucky number 11
+                if ( 11 === $optimize ) {
+                        $wpdb->query( "OPTIMIZE TABLE {$wpdb->postmeta}" );
+                }
+        }
 }
 endif;