using_permalinks() ) { // rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101 if ( is_single() && get_query_var('p') ) { if ( $redirect_url = get_permalink(get_query_var('p')) ) $redirect['query'] = remove_query_arg('p', $redirect['query']); } elseif ( is_page() && get_query_var('page_id') ) { if ( $redirect_url = get_permalink(get_query_var('page_id')) ) $redirect['query'] = remove_query_arg('page_id', $redirect['query']); } elseif ( get_query_var('m') && ( is_year() || is_month() || is_day() ) ) { $m = get_query_var('m'); switch ( strlen($m) ) { case 4: // Yearly $redirect_url = get_year_link($m); break; case 6: // Monthly $redirect_url = get_month_link( substr($m, 0, 4), substr($m, 4, 2) ); break; case 8: // Daily $redirect_url = get_day_link(substr($m, 0, 4), substr($m, 4, 2), substr($m, 6, 2)); break; } if ( $redirect_url ) $redirect['query'] = remove_query_arg('m', $redirect['query']); // now moving on to non ?m=X year/month/day links } elseif ( is_day() && get_query_var('year') && get_query_var('monthnum') && get_query_var('day') ) { if ( $redirect_url = get_day_link(get_query_var('year'), get_query_var('monthnum'), get_query_var('day')) ) $redirect['query'] = remove_query_arg(array('year', 'monthnum', 'day'), $redirect['query']); } elseif ( is_month() && get_query_var('year') && get_query_var('monthnum') ) { if ( $redirect_url = get_month_link(get_query_var('year'), get_query_var('monthnum')) ) $redirect['query'] = remove_query_arg(array('year', 'monthnum'), $redirect['query']); } elseif ( is_year() && get_query_var('year') ) { if ( $redirect_url = get_year_link(get_query_var('year')) ) $redirect['query'] = remove_query_arg('year', $redirect['query']); } elseif ( is_category() && get_query_var('cat') ) { if ( $redirect_url = get_category_link(get_query_var('cat')) ) $redirect['query'] = remove_query_arg('cat', $redirect['query']); } elseif ( is_author() && get_query_var('author') ) { $author = get_userdata(get_query_var('author')); if ( false !== $author && $redirect_url = get_author_link(false, $author->ID, $author->user_nicename) ) $redirect['query'] = remove_query_arg('author', $redirect['author']); } // paging if ( is_paged() && strpos($redirect['query'], 'paged=') !== false ) { if ( $paged = get_query_var('paged') ) { if ( $paged > 1 ) { if ( !$redirect_url ) $redirect_url = $requested_url; $paged_redirect = @parse_url($redirect_url); $paged_redirect['path'] = preg_replace('|/index.php/?$|', '/', $paged_redirect['path']); $paged_redirect['path'] = trailingslashit($paged_redirect['path']); if ( $wp_rewrite->using_index_permalinks() && strpos($paged_redirect['path'], '/index.php/') === false ) $paged_redirect['path'] .= 'index.php/'; $paged_redirect['path'] .= user_trailingslashit("page/$paged"); $redirect_url = $paged_redirect['scheme'] . '://' . $paged_redirect['host'] . $paged_redirect['path']; } $redirect['query'] = remove_query_arg('paged', $redirect['query']); } } } // tack on any additional query vars if ( $redirect_url && $redirect['query'] ) $redirect_url .= '?' . $redirect['query']; if ( !$redirect_url ) { // we're only going down this road if we don't have a WP-generated link from above // www.example.com vs example.com $user_home = parse_url(get_option('home')); $redirect['host'] = $user_home['host']; // trailing /index.php or /index.php/ $redirect['path'] = preg_replace('|/index.php/?$|', '/', $redirect['path']); // need to strip off the query string if ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() && !is_404() && (!is_home() || ( is_home() && is_paged() ) ) ) $redirect['path'] = user_trailingslashit($redirect['path']); if ( array($original['host'], $original['path'], $original['query']) !== array($redirect['host'], $redirect['path'], $redirect['query']) ) { $redirect_url = $redirect['scheme'] . '://' . $redirect['host'] . $redirect['path']; if ( $redirect['query'] ) $redirect_url .= '?' . $redirect['query']; } } if ( $redirect_url && $redirect_url != $requested_url ) { // var_dump($redirect_url); die(); $redirect_url = apply_filters('redirect_canonical', $redirect_url, $requested_url); wp_redirect($redirect_url, 301); exit(); } } function redirect_guess_404_permalink() { global $wp_query, $wpdb; if ( !get_query_var('name') ) return false; $where = "post_name LIKE '" . $wpdb->escape(get_query_var('name')) . "%'"; // if any of year, monthnum, or day are set, use them to refine the query if ( get_query_var('year') ) $where .= " AND YEAR(post_date) = '" . $wpdb->escape(get_query_var('year')) . "'"; if ( get_query_var('monthnum') ) $where .= " AND MONTH(post_date) = '" . $wpdb->escape(get_query_var('monthnum')) . "'"; if ( get_query_var('day') ) $where .= " AND DAYOFMONTH(post_date) = '" . $wpdb->escape(get_query_var('day')) . "'"; $post_id = $wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE $where AND post_status = 'publish'"); if ( !$post_id ) return false; return get_permalink($post_id); } add_action('template_redirect', 'redirect_canonical'); ?>