/**
* Sets up the default filters and actions for most
* of the WordPress hooks.
*
* This file is loaded very early in the bootstrap which
* means many functions are not yet available and site
* information such as if this is multisite is unknown.
* Before using functions besides `add_filter` and
* `add_action`, verify things will work as expected.
*
* If you need to remove a default hook, this file will
* give you the priority to use for removing the hook.
*
* Not all of the default hooks are found in this file.
* For instance, administration-related hooks are located in
* wp-admin/includes/admin-filters.php.
*
* If a hook should only be called from a specific context
* (admin area, multisite environment…), please move it
* to a more appropriate file instead.
*
* @package WordPress
*/
// Strip, trim, kses, special chars for string saves.
foreach ( array( 'pre_term_name', 'pre_comment_author_name', 'pre_link_name', 'pre_link_target', 'pre_link_rel', 'pre_user_display_name', 'pre_user_first_name', 'pre_user_last_name', 'pre_user_nickname' ) as $filter ) {
add_filter( $filter, 'sanitize_text_field' );
add_filter( $filter, 'wp_filter_kses' );
add_filter( $filter, '_wp_specialchars', 30 );
}
// Strip, kses, special chars for string display.
foreach ( array( 'term_name', 'comment_author_name', 'link_name', 'link_target', 'link_rel', 'user_display_name', 'user_first_name', 'user_last_name', 'user_nickname' ) as $filter ) {
if ( is_admin() ) {
// These are expensive. Run only on admin pages for defense in depth.
add_filter( $filter, 'sanitize_text_field' );
add_filter( $filter, 'wp_kses_data' );
}
add_filter( $filter, '_wp_specialchars', 30 );
}
// Kses only for textarea saves.
foreach ( array( 'pre_term_description', 'pre_link_description', 'pre_link_notes', 'pre_user_description' ) as $filter ) {
add_filter( $filter, 'wp_filter_kses' );
}
// Kses only for textarea admin displays.
if ( is_admin() ) {
foreach ( array( 'term_description', 'link_description', 'link_notes', 'user_description' ) as $filter ) {
add_filter( $filter, 'wp_kses_data' );
}
add_filter( 'comment_text', 'wp_kses_post' );
}
// Email saves.
foreach ( array( 'pre_comment_author_email', 'pre_user_email' ) as $filter ) {
add_filter( $filter, 'trim' );
add_filter( $filter, 'sanitize_email' );
add_filter( $filter, 'wp_filter_kses' );
}
// Email admin display.
foreach ( array( 'comment_author_email', 'user_email' ) as $filter ) {
add_filter( $filter, 'sanitize_email' );
if ( is_admin() ) {
add_filter( $filter, 'wp_kses_data' );
}
}
// Save URL.
foreach ( array(
'pre_comment_author_url',
'pre_user_url',
'pre_link_url',
'pre_link_image',
'pre_link_rss',
'pre_post_guid',
) as $filter ) {
add_filter( $filter, 'wp_strip_all_tags' );
add_filter( $filter, 'sanitize_url' );
add_filter( $filter, 'wp_filter_kses' );
}
// Display URL.
foreach ( array( 'user_url', 'link_url', 'link_image', 'link_rss', 'comment_url', 'post_guid' ) as $filter ) {
if ( is_admin() ) {
add_filter( $filter, 'wp_strip_all_tags' );
}
add_filter( $filter, 'esc_url' );
if ( is_admin() ) {
add_filter( $filter, 'wp_kses_data' );
}
}
// Slugs.
add_filter( 'pre_term_slug', 'sanitize_title' );
add_filter( 'wp_insert_post_data', '_wp_customize_changeset_filter_insert_post_data', 10, 2 );
// Keys.
foreach ( array( 'pre_post_type', 'pre_post_status', 'pre_post_comment_status', 'pre_post_ping_status' ) as $filter ) {
add_filter( $filter, 'sanitize_key' );
}
// Mime types.
add_filter( 'pre_post_mime_type', 'sanitize_mime_type' );
add_filter( 'post_mime_type', 'sanitize_mime_type' );
// Meta.
add_filter( 'register_meta_args', '_wp_register_meta_args_allowed_list', 10, 2 );
// Counts.
add_action( 'admin_init', 'wp_schedule_update_user_counts' );
add_action( 'wp_update_user_counts', 'wp_schedule_update_user_counts', 10, 0 );
foreach ( array( 'user_register', 'deleted_user' ) as $action ) {
add_action( $action, 'wp_maybe_update_user_counts', 10, 0 );
}
// Post meta.
add_action( 'added_post_meta', 'wp_cache_set_posts_last_changed' );
add_action( 'updated_post_meta', 'wp_cache_set_posts_last_changed' );
add_action( 'deleted_post_meta', 'wp_cache_set_posts_last_changed' );
// User meta.
add_action( 'added_user_meta', 'wp_cache_set_users_last_changed' );
add_action( 'updated_user_meta', 'wp_cache_set_users_last_changed' );
add_action( 'deleted_user_meta', 'wp_cache_set_users_last_changed' );
add_action( 'add_user_role', 'wp_cache_set_users_last_changed' );
add_action( 'set_user_role', 'wp_cache_set_users_last_changed' );
add_action( 'remove_user_role', 'wp_cache_set_users_last_changed' );
// Term meta.
add_action( 'added_term_meta', 'wp_cache_set_terms_last_changed' );
add_action( 'updated_term_meta', 'wp_cache_set_terms_last_changed' );
add_action( 'deleted_term_meta', 'wp_cache_set_terms_last_changed' );
add_filter( 'get_term_metadata', 'wp_check_term_meta_support_prefilter' );
add_filter( 'add_term_metadata', 'wp_check_term_meta_support_prefilter' );
add_filter( 'update_term_metadata', 'wp_check_term_meta_support_prefilter' );
add_filter( 'delete_term_metadata', 'wp_check_term_meta_support_prefilter' );
add_filter( 'get_term_metadata_by_mid', 'wp_check_term_meta_support_prefilter' );
add_filter( 'update_term_metadata_by_mid', 'wp_check_term_meta_support_prefilter' );
add_filter( 'delete_term_metadata_by_mid', 'wp_check_term_meta_support_prefilter' );
add_filter( 'update_term_metadata_cache', 'wp_check_term_meta_support_prefilter' );
// Comment meta.
add_action( 'added_comment_meta', 'wp_cache_set_comments_last_changed' );
add_action( 'updated_comment_meta', 'wp_cache_set_comments_last_changed' );
add_action( 'deleted_comment_meta', 'wp_cache_set_comments_last_changed' );
// Places to balance tags on input.
foreach ( array( 'content_save_pre', 'excerpt_save_pre', 'comment_save_pre', 'pre_comment_content' ) as $filter ) {
add_filter( $filter, 'convert_invalid_entities' );
add_filter( $filter, 'balanceTags', 50 );
}
// Format strings for display.
foreach ( array( 'comment_author', 'term_name', 'link_name', 'link_description', 'link_notes', 'bloginfo', 'wp_title', 'document_title', 'widget_title' ) as $filter ) {
add_filter( $filter, 'wptexturize' );
add_filter( $filter, 'convert_chars' );
add_filter( $filter, 'esc_html' );
}
// Format WordPress.
foreach ( array( 'the_content', 'the_title', 'wp_title', 'document_title' ) as $filter ) {
add_filter( $filter, 'capital_P_dangit', 11 );
}
add_filter( 'comment_text', 'capital_P_dangit', 31 );
// Format titles.
foreach ( array( 'single_post_title', 'single_cat_title', 'single_tag_title', 'single_month_title', 'nav_menu_attr_title', 'nav_menu_description' ) as $filter ) {
add_filter( $filter, 'wptexturize' );
add_filter( $filter, 'strip_tags' );
}
// Format text area for display.
foreach ( array( 'term_description', 'get_the_post_type_description' ) as $filter ) {
add_filter( $filter, 'wptexturize' );
add_filter( $filter, 'convert_chars' );
add_filter( $filter, 'wpautop' );
add_filter( $filter, 'shortcode_unautop' );
}
// Format for RSS.
add_filter( 'term_name_rss', 'convert_chars' );
// Pre save hierarchy.
add_filter( 'wp_insert_post_parent', 'wp_check_post_hierarchy_for_loops', 10, 2 );
add_filter( 'wp_update_term_parent', 'wp_check_term_hierarchy_for_loops', 10, 3 );
// Display filters.
add_filter( 'the_title', 'wptexturize' );
add_filter( 'the_title', 'convert_chars' );
add_filter( 'the_title', 'trim' );
add_filter( 'the_content', 'do_blocks', 9 );
add_filter( 'the_content', 'wptexturize' );
add_filter( 'the_content', 'convert_smilies', 20 );
add_filter( 'the_content', 'wpautop' );
add_filter( 'the_content', 'shortcode_unautop' );
add_filter( 'the_content', 'prepend_attachment' );
add_filter( 'the_content', 'wp_replace_insecure_home_url' );
add_filter( 'the_content', 'do_shortcode', 11 ); // AFTER wpautop().
add_filter( 'the_content', 'wp_filter_content_tags', 12 ); // Runs after do_shortcode().
add_filter( 'the_excerpt', 'wptexturize' );
add_filter( 'the_excerpt', 'convert_smilies' );
add_filter( 'the_excerpt', 'convert_chars' );
add_filter( 'the_excerpt', 'wpautop' );
add_filter( 'the_excerpt', 'shortcode_unautop' );
add_filter( 'the_excerpt', 'wp_replace_insecure_home_url' );
add_filter( 'the_excerpt', 'wp_filter_content_tags', 12 );
add_filter( 'get_the_excerpt', 'wp_trim_excerpt', 10, 2 );
add_filter( 'the_post_thumbnail_caption', 'wptexturize' );
add_filter( 'the_post_thumbnail_caption', 'convert_smilies' );
add_filter( 'the_post_thumbnail_caption', 'convert_chars' );
add_filter( 'comment_text', 'wptexturize' );
add_filter( 'comment_text', 'convert_chars' );
add_filter( 'comment_text', 'make_clickable', 9 );
add_filter( 'comment_text', 'force_balance_tags', 25 );
add_filter( 'comment_text', 'convert_smilies', 20 );
add_filter( 'comment_text', 'wpautop', 30 );
add_filter( 'comment_excerpt', 'convert_chars' );
add_filter( 'list_cats', 'wptexturize' );
add_filter( 'wp_sprintf', 'wp_sprintf_l', 10, 2 );
add_filter( 'widget_text', 'balanceTags' );
add_filter( 'widget_text_content', 'capital_P_dangit', 11 );
add_filter( 'widget_text_content', 'wptexturize' );
add_filter( 'widget_text_content', 'convert_smilies', 20 );
add_filter( 'widget_text_content', 'wpautop' );
add_filter( 'widget_text_content', 'shortcode_unautop' );
add_filter( 'widget_text_content', 'wp_replace_insecure_home_url' );
add_filter( 'widget_text_content', 'do_shortcode', 11 ); // Runs after wpautop(); note that $post global will be null when shortcodes run.
add_filter( 'widget_text_content', 'wp_filter_content_tags', 12 ); // Runs after do_shortcode().
add_filter( 'widget_block_content', 'do_blocks', 9 );
add_filter( 'widget_block_content', 'do_shortcode', 11 );
add_filter( 'widget_block_content', 'wp_filter_content_tags', 12 ); // Runs after do_shortcode().
add_filter( 'block_type_metadata', 'wp_migrate_old_typography_shape' );
add_filter( 'wp_get_custom_css', 'wp_replace_insecure_home_url' );
// RSS filters.
add_filter( 'the_title_rss', 'strip_tags' );
add_filter( 'the_title_rss', 'ent2ncr', 8 );
add_filter( 'the_title_rss', 'esc_html' );
add_filter( 'the_content_rss', 'ent2ncr', 8 );
add_filter( 'the_content_feed', 'wp_staticize_emoji' );
add_filter( 'the_content_feed', '_oembed_filter_feed_content' );
add_filter( 'the_excerpt_rss', 'convert_chars' );
add_filter( 'the_excerpt_rss', 'ent2ncr', 8 );
add_filter( 'comment_author_rss', 'ent2ncr', 8 );
add_filter( 'comment_text_rss', 'ent2ncr', 8 );
add_filter( 'comment_text_rss', 'esc_html' );
add_filter( 'comment_text_rss', 'wp_staticize_emoji' );
add_filter( 'bloginfo_rss', 'ent2ncr', 8 );
add_filter( 'the_author', 'ent2ncr', 8 );
add_filter( 'the_guid', 'esc_url' );
// Email filters.
add_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
// Robots filters.
add_filter( 'wp_robots', 'wp_robots_noindex' );
add_filter( 'wp_robots', 'wp_robots_noindex_embeds' );
add_filter( 'wp_robots', 'wp_robots_noindex_search' );
add_filter( 'wp_robots', 'wp_robots_max_image_preview_large' );
// Mark site as no longer fresh.
foreach (
array(
'publish_post',
'publish_page',
'wp_ajax_save-widget',
'wp_ajax_widgets-order',
'customize_save_after',
'rest_after_save_widget',
'rest_delete_widget',
'rest_save_sidebar',
) as $action
) {
add_action( $action, '_delete_option_fresh_site', 0 );
}
// Misc filters.
add_filter( 'wp_default_autoload_value', 'wp_filter_default_autoload_value_via_option_size', 5, 4 ); // Allow the value to be overridden at the default priority.
add_filter( 'option_ping_sites', 'privacy_ping_filter' );
add_filter( 'option_blog_charset', '_wp_specialchars' ); // IMPORTANT: This must not be wp_specialchars() or esc_html() or it'll cause an infinite loop.
add_filter( 'option_blog_charset', '_canonical_charset' );
add_filter( 'option_home', '_config_wp_home' );
add_filter( 'option_siteurl', '_config_wp_siteurl' );
add_filter( 'tiny_mce_before_init', '_mce_set_direction' );
add_filter( 'teeny_mce_before_init', '_mce_set_direction' );
add_filter( 'pre_kses', 'wp_pre_kses_less_than' );
add_filter( 'pre_kses', 'wp_pre_kses_block_attributes', 10, 3 );
add_filter( 'sanitize_title', 'sanitize_title_with_dashes', 10, 3 );
add_action( 'check_comment_flood', 'check_comment_flood_db', 10, 4 );
add_filter( 'comment_flood_filter', 'wp_throttle_comment_flood', 10, 3 );
add_filter( 'pre_comment_content', 'wp_rel_ugc', 15 );
add_filter( 'comment_email', 'antispambot' );
add_filter( 'option_tag_base', '_wp_filter_taxonomy_base' );
add_filter( 'option_category_base', '_wp_filter_taxonomy_base' );
add_filter( 'the_posts', '_close_comments_for_old_posts', 10, 2 );
add_filter( 'comments_open', '_close_comments_for_old_post', 10, 2 );
add_filter( 'pings_open', '_close_comments_for_old_post', 10, 2 );
add_filter( 'editable_slug', 'urldecode' );
add_filter( 'editable_slug', 'esc_textarea' );
add_filter( 'pingback_ping_source_uri', 'pingback_ping_source_uri' );
add_filter( 'xmlrpc_pingback_error', 'xmlrpc_pingback_error' );
add_filter( 'title_save_pre', 'trim' );
add_action( 'transition_comment_status', '_clear_modified_cache_on_transition_comment_status', 10, 2 );
add_filter( 'http_request_host_is_external', 'allowed_http_request_hosts', 10, 2 );
// REST API filters.
add_action( 'xmlrpc_rsd_apis', 'rest_output_rsd' );
add_action( 'wp_head', 'rest_output_link_wp_head', 10, 0 );
add_action( 'template_redirect', 'rest_output_link_header', 11, 0 );
add_action( 'auth_cookie_malformed', 'rest_cookie_collect_status' );
add_action( 'auth_cookie_expired', 'rest_cookie_collect_status' );
add_action( 'auth_cookie_bad_username', 'rest_cookie_collect_status' );
add_action( 'auth_cookie_bad_hash', 'rest_cookie_collect_status' );
add_action( 'auth_cookie_valid', 'rest_cookie_collect_status' );
add_action( 'application_password_failed_authentication', 'rest_application_password_collect_status' );
add_action( 'application_password_did_authenticate', 'rest_application_password_collect_status', 10, 2 );
add_filter( 'rest_authentication_errors', 'rest_application_password_check_errors', 90 );
add_filter( 'rest_authentication_errors', 'rest_cookie_check_errors', 100 );
// Actions.
add_action( 'wp_head', '_wp_render_title_tag', 1 );
add_action( 'wp_head', 'wp_enqueue_scripts', 1 );
add_action( 'wp_head', 'wp_resource_hints', 2 );
add_action( 'wp_head', 'wp_preload_resources', 1 );
add_action( 'wp_head', 'feed_links', 2 );
add_action( 'wp_head', 'feed_links_extra', 3 );
add_action( 'wp_head', 'rsd_link' );
add_action( 'wp_head', 'locale_stylesheet' );
add_action( 'publish_future_post', 'check_and_publish_future_post', 10, 1 );
add_action( 'wp_head', 'wp_robots', 1 );
add_action( 'wp_head', 'print_emoji_detection_script', 7 );
add_action( 'wp_head', 'wp_print_styles', 8 );
add_action( 'wp_head', 'wp_print_head_scripts', 9 );
add_action( 'wp_head', 'wp_generator' );
add_action( 'wp_head', 'rel_canonical' );
add_action( 'wp_head', 'wp_shortlink_wp_head', 10, 0 );
add_action( 'wp_head', 'wp_custom_css_cb', 101 );
add_action( 'wp_head', 'wp_site_icon', 99 );
add_action( 'wp_footer', 'wp_print_footer_scripts', 20 );
add_action( 'template_redirect', 'wp_shortlink_header', 11, 0 );
add_action( 'wp_print_footer_scripts', '_wp_footer_scripts' );
add_action( 'init', '_register_core_block_patterns_and_categories' );
add_action( 'init', 'check_theme_switched', 99 );
add_action( 'init', array( 'WP_Block_Supports', 'init' ), 22 );
add_action( 'switch_theme', 'wp_clean_theme_json_cache' );
add_action( 'start_previewing_theme', 'wp_clean_theme_json_cache' );
add_action( 'after_switch_theme', '_wp_menus_changed' );
add_action( 'after_switch_theme', '_wp_sidebars_changed' );
add_action( 'wp_enqueue_scripts', 'wp_enqueue_emoji_styles' );
add_action( 'wp_print_styles', 'print_emoji_styles' ); // Retained for backwards-compatibility. Unhooked by wp_enqueue_emoji_styles().
if ( isset( $_GET['replytocom'] ) ) {
add_filter( 'wp_robots', 'wp_robots_no_robots' );
}
// Login actions.
add_action( 'login_head', 'wp_robots', 1 );
add_filter( 'login_head', 'wp_resource_hints', 8 );
add_action( 'login_head', 'wp_print_head_scripts', 9 );
add_action( 'login_head', 'print_admin_styles', 9 );
add_action( 'login_head', 'wp_site_icon', 99 );
add_action( 'login_footer', 'wp_print_footer_scripts', 20 );
add_action( 'login_init', 'send_frame_options_header', 10, 0 );
// Feed generator tags.
foreach ( array( 'rss2_head', 'commentsrss2_head', 'rss_head', 'rdf_header', 'atom_head', 'comments_atom_head', 'opml_head', 'app_head' ) as $action ) {
add_action( $action, 'the_generator' );
}
// Feed Site Icon.
add_action( 'atom_head', 'atom_site_icon' );
add_action( 'rss2_head', 'rss2_site_icon' );
// WP Cron.
if ( ! defined( 'DOING_CRON' ) ) {
add_action( 'init', 'wp_cron' );
}
// HTTPS migration.
add_action( 'update_option_home', 'wp_update_https_migration_required', 10, 2 );
// 2 Actions 2 Furious.
add_action( 'do_feed_rdf', 'do_feed_rdf', 10, 0 );
add_action( 'do_feed_rss', 'do_feed_rss', 10, 0 );
add_action( 'do_feed_rss2', 'do_feed_rss2', 10, 1 );
add_action( 'do_feed_atom', 'do_feed_atom', 10, 1 );
add_action( 'do_pings', 'do_all_pings', 10, 0 );
add_action( 'do_all_pings', 'do_all_pingbacks', 10, 0 );
add_action( 'do_all_pings', 'do_all_enclosures', 10, 0 );
add_action( 'do_all_pings', 'do_all_trackbacks', 10, 0 );
add_action( 'do_all_pings', 'generic_ping', 10, 0 );
add_action( 'do_robots', 'do_robots' );
add_action( 'do_favicon', 'do_favicon' );
add_action( 'set_comment_cookies', 'wp_set_comment_cookies', 10, 3 );
add_action( 'sanitize_comment_cookies', 'sanitize_comment_cookies' );
add_action( 'init', 'smilies_init', 5 );
add_action( 'plugins_loaded', 'wp_maybe_load_widgets', 0 );
add_action( 'plugins_loaded', 'wp_maybe_load_embeds', 0 );
add_action( 'shutdown', 'wp_ob_end_flush_all', 1 );
// Create a revision whenever a post is updated.
add_action( 'wp_after_insert_post', 'wp_save_post_revision_on_insert', 9, 3 );
add_action( 'post_updated', 'wp_save_post_revision', 10, 1 );
add_action( 'publish_post', '_publish_post_hook', 5, 1 );
add_action( 'transition_post_status', '_transition_post_status', 5, 3 );
add_action( 'transition_post_status', '_update_term_count_on_transition_post_status', 10, 3 );
add_action( 'comment_form', 'wp_comment_form_unfiltered_html_nonce' );
// Privacy.
add_action( 'user_request_action_confirmed', '_wp_privacy_account_request_confirmed' );
add_action( 'user_request_action_confirmed', '_wp_privacy_send_request_confirmation_notification', 12 ); // After request marked as completed.
add_filter( 'wp_privacy_personal_data_exporters', 'wp_register_comment_personal_data_exporter' );
add_filter( 'wp_privacy_personal_data_exporters', 'wp_register_media_personal_data_exporter' );
add_filter( 'wp_privacy_personal_data_exporters', 'wp_register_user_personal_data_exporter', 1 );
add_filter( 'wp_privacy_personal_data_erasers', 'wp_register_comment_personal_data_eraser' );
add_action( 'init', 'wp_schedule_delete_old_privacy_export_files' );
add_action( 'wp_privacy_delete_old_export_files', 'wp_privacy_delete_old_export_files' );
// Cron tasks.
add_action( 'wp_scheduled_delete', 'wp_scheduled_delete' );
add_action( 'wp_scheduled_auto_draft_delete', 'wp_delete_auto_drafts' );
add_action( 'importer_scheduled_cleanup', 'wp_delete_attachment' );
add_action( 'upgrader_scheduled_cleanup', 'wp_delete_attachment' );
add_action( 'delete_expired_transients', 'delete_expired_transients' );
// Navigation menu actions.
add_action( 'delete_post', '_wp_delete_post_menu_item' );
add_action( 'delete_term', '_wp_delete_tax_menu_item', 10, 3 );
add_action( 'transition_post_status', '_wp_auto_add_pages_to_menu', 10, 3 );
add_action( 'delete_post', '_wp_delete_customize_changeset_dependent_auto_drafts' );
// Post Thumbnail specific image filtering.
add_action( 'begin_fetch_post_thumbnail_html', '_wp_post_thumbnail_class_filter_add' );
add_action( 'end_fetch_post_thumbnail_html', '_wp_post_thumbnail_class_filter_remove' );
add_action( 'begin_fetch_post_thumbnail_html', '_wp_post_thumbnail_context_filter_add' );
add_action( 'end_fetch_post_thumbnail_html', '_wp_post_thumbnail_context_filter_remove' );
// Redirect old slugs.
add_action( 'template_redirect', 'wp_old_slug_redirect' );
add_action( 'post_updated', 'wp_check_for_changed_slugs', 12, 3 );
add_action( 'attachment_updated', 'wp_check_for_changed_slugs', 12, 3 );
// Redirect old dates.
add_action( 'post_updated', 'wp_check_for_changed_dates', 12, 3 );
add_action( 'attachment_updated', 'wp_check_for_changed_dates', 12, 3 );
// Nonce check for post previews.
add_action( 'init', '_show_post_preview' );
// Output JS to reset window.name for previews.
add_action( 'wp_head', 'wp_post_preview_js', 1 );
// Timezone.
add_filter( 'pre_option_gmt_offset', 'wp_timezone_override_offset' );
// If the upgrade hasn't run yet, assume link manager is used.
add_filter( 'default_option_link_manager_enabled', '__return_true' );
// This option no longer exists; tell plugins we always support auto-embedding.
add_filter( 'pre_option_embed_autourls', '__return_true' );
// Default settings for heartbeat.
add_filter( 'heartbeat_settings', 'wp_heartbeat_settings' );
// Check if the user is logged out.
add_action( 'admin_enqueue_scripts', 'wp_auth_check_load' );
add_filter( 'heartbeat_send', 'wp_auth_check' );
add_filter( 'heartbeat_nopriv_send', 'wp_auth_check' );
// Default authentication filters.
add_filter( 'authenticate', 'wp_authenticate_username_password', 20, 3 );
add_filter( 'authenticate', 'wp_authenticate_email_password', 20, 3 );
add_filter( 'authenticate', 'wp_authenticate_application_password', 20, 3 );
add_filter( 'authenticate', 'wp_authenticate_spam_check', 99 );
add_filter( 'determine_current_user', 'wp_validate_auth_cookie' );
add_filter( 'determine_current_user', 'wp_validate_logged_in_cookie', 20 );
add_filter( 'determine_current_user', 'wp_validate_application_password', 20 );
// Split term updates.
add_action( 'admin_init', '_wp_check_for_scheduled_split_terms' );
add_action( 'split_shared_term', '_wp_check_split_default_terms', 10, 4 );
add_action( 'split_shared_term', '_wp_check_split_terms_in_menus', 10, 4 );
add_action( 'split_shared_term', '_wp_check_split_nav_menu_terms', 10, 4 );
add_action( 'wp_split_shared_term_batch', '_wp_batch_split_terms' );
// Comment type updates.
add_action( 'admin_init', '_wp_check_for_scheduled_update_comment_type' );
add_action( 'wp_update_comment_type_batch', '_wp_batch_update_comment_type' );
// Email notifications.
add_action( 'comment_post', 'wp_new_comment_notify_moderator' );
add_action( 'comment_post', 'wp_new_comment_notify_postauthor' );
add_action( 'after_password_reset', 'wp_password_change_notification' );
add_action( 'register_new_user', 'wp_send_new_user_notifications' );
add_action( 'edit_user_created_user', 'wp_send_new_user_notifications', 10, 2 );
// REST API actions.
add_action( 'init', 'rest_api_init' );
add_action( 'rest_api_init', 'rest_api_default_filters', 10, 1 );
add_action( 'rest_api_init', 'register_initial_settings', 10 );
add_action( 'rest_api_init', 'create_initial_rest_routes', 99 );
add_action( 'parse_request', 'rest_api_loaded' );
// Sitemaps actions.
add_action( 'init', 'wp_sitemaps_get_server' );
/**
* Filters formerly mixed into wp-includes.
*/
// Theme.
add_action( 'setup_theme', 'create_initial_theme_features', 0 );
add_action( 'after_setup_theme', '_add_default_theme_supports', 1 );
add_action( 'wp_loaded', '_custom_header_background_just_in_time' );
add_action( 'wp_head', '_custom_logo_header_styles' );
add_action( 'plugins_loaded', '_wp_customize_include' );
add_action( 'transition_post_status', '_wp_customize_publish_changeset', 10, 3 );
add_action( 'admin_enqueue_scripts', '_wp_customize_loader_settings' );
add_action( 'delete_attachment', '_delete_attachment_theme_mod' );
add_action( 'transition_post_status', '_wp_keep_alive_customize_changeset_dependent_auto_drafts', 20, 3 );
// Block Theme Previews.
add_action( 'plugins_loaded', 'wp_initialize_theme_preview_hooks', 1 );
// Calendar widget cache.
add_action( 'save_post', 'delete_get_calendar_cache' );
add_action( 'delete_post', 'delete_get_calendar_cache' );
add_action( 'update_option_start_of_week', 'delete_get_calendar_cache' );
add_action( 'update_option_gmt_offset', 'delete_get_calendar_cache' );
// Author.
add_action( 'transition_post_status', '__clear_multi_author_cache' );
// Post.
add_action( 'init', 'create_initial_post_types', 0 ); // Highest priority.
add_action( 'admin_menu', '_add_post_type_submenus' );
add_action( 'before_delete_post', '_reset_front_page_settings_for_post' );
add_action( 'wp_trash_post', '_reset_front_page_settings_for_post' );
add_action( 'change_locale', 'create_initial_post_types' );
// Post Formats.
add_filter( 'request', '_post_format_request' );
add_filter( 'term_link', '_post_format_link', 10, 3 );
add_filter( 'get_post_format', '_post_format_get_term' );
add_filter( 'get_terms', '_post_format_get_terms', 10, 3 );
add_filter( 'wp_get_object_terms', '_post_format_wp_get_object_terms' );
// KSES.
add_action( 'init', 'kses_init' );
add_action( 'set_current_user', 'kses_init' );
// Script Loader.
add_action( 'wp_default_scripts', 'wp_default_scripts' );
add_action( 'wp_default_scripts', 'wp_default_packages' );
add_action( 'wp_default_scripts', 'wp_default_script_modules' );
add_action( 'wp_enqueue_scripts', 'wp_localize_jquery_ui_datepicker', 1000 );
add_action( 'wp_enqueue_scripts', 'wp_common_block_scripts_and_styles' );
add_action( 'wp_enqueue_scripts', 'wp_enqueue_classic_theme_styles' );
add_action( 'admin_enqueue_scripts', 'wp_localize_jquery_ui_datepicker', 1000 );
add_action( 'admin_enqueue_scripts', 'wp_common_block_scripts_and_styles' );
add_action( 'enqueue_block_assets', 'wp_enqueue_registered_block_scripts_and_styles' );
add_action( 'enqueue_block_assets', 'enqueue_block_styles_assets', 30 );
/*
* `wp_enqueue_registered_block_scripts_and_styles` is bound to both
* `enqueue_block_editor_assets` and `enqueue_block_assets` hooks
* since the introduction of the block editor in WordPress 5.0.
*
* The way this works is that the block assets are loaded before any other assets.
* For example, this is the order of styles for the editor:
*
* - front styles registered for blocks, via `styles` handle (block.json)
* - editor styles registered for blocks, via `editorStyles` handle (block.json)
* - editor styles enqueued via `enqueue_block_editor_assets` hook
* - front styles enqueued via `enqueue_block_assets` hook
*/
add_action( 'enqueue_block_editor_assets', 'wp_enqueue_registered_block_scripts_and_styles' );
add_action( 'enqueue_block_editor_assets', 'enqueue_editor_block_styles_assets' );
add_action( 'enqueue_block_editor_assets', 'wp_enqueue_editor_block_directory_assets' );
add_action( 'enqueue_block_editor_assets', 'wp_enqueue_editor_format_library_assets' );
add_action( 'enqueue_block_editor_assets', 'wp_enqueue_global_styles_css_custom_properties' );
add_action( 'wp_print_scripts', 'wp_just_in_time_script_localization' );
add_filter( 'print_scripts_array', 'wp_prototype_before_jquery' );
add_action( 'customize_controls_print_styles', 'wp_resource_hints', 1 );
add_action( 'admin_head', 'wp_check_widget_editor_deps' );
add_filter( 'block_editor_settings_all', 'wp_add_editor_classic_theme_styles' );
// Global styles can be enqueued in both the header and the footer. See https://core.trac.wordpress.org/ticket/53494.
add_action( 'wp_enqueue_scripts', 'wp_enqueue_global_styles' );
add_action( 'wp_footer', 'wp_enqueue_global_styles', 1 );
// Block supports, and other styles parsed and stored in the Style Engine.
add_action( 'wp_enqueue_scripts', 'wp_enqueue_stored_styles' );
add_action( 'wp_footer', 'wp_enqueue_stored_styles', 1 );
add_action( 'wp_default_styles', 'wp_default_styles' );
add_filter( 'style_loader_src', 'wp_style_loader_src', 10, 2 );
add_action( 'wp_head', 'wp_print_auto_sizes_contain_css_fix', 1 );
add_action( 'wp_head', 'wp_maybe_inline_styles', 1 ); // Run for styles enqueued in .
add_action( 'wp_footer', 'wp_maybe_inline_styles', 1 ); // Run for late-loaded styles in the footer.
/*
* Block specific actions and filters.
*/
// Footnotes Block.
add_action( 'init', '_wp_footnotes_kses_init' );
add_action( 'set_current_user', '_wp_footnotes_kses_init' );
add_filter( 'force_filtered_html_on_import', '_wp_footnotes_force_filtered_html_on_import_filter', 999 );
/*
* Disable "Post Attributes" for wp_navigation post type. The attributes are
* also conditionally enabled when a site has custom templates. Block Theme
* templates can be available for every post type.
*/
add_filter( 'theme_wp_navigation_templates', '__return_empty_array' );
// Taxonomy.
add_action( 'init', 'create_initial_taxonomies', 0 ); // Highest priority.
add_action( 'change_locale', 'create_initial_taxonomies' );
// Canonical.
add_action( 'template_redirect', 'redirect_canonical' );
add_action( 'template_redirect', 'wp_redirect_admin_locations', 1000 );
// Media.
add_action( 'wp_playlist_scripts', 'wp_playlist_scripts' );
add_action( 'customize_controls_enqueue_scripts', 'wp_plupload_default_settings' );
add_action( 'plugins_loaded', '_wp_add_additional_image_sizes', 0 );
add_filter( 'plupload_default_settings', 'wp_show_heic_upload_error' );
// Nav menu.
add_filter( 'nav_menu_item_id', '_nav_menu_item_id_use_once', 10, 2 );
add_filter( 'nav_menu_css_class', 'wp_nav_menu_remove_menu_item_has_children_class', 10, 4 );
// Widgets.
add_action( 'after_setup_theme', 'wp_setup_widgets_block_editor', 1 );
add_action( 'init', 'wp_widgets_init', 1 );
add_action( 'change_locale', array( 'WP_Widget_Media', 'reset_default_labels' ) );
add_action( 'widgets_init', '_wp_block_theme_register_classic_sidebars', 1 );
// Admin Bar.
// Don't remove. Wrong way to disable.
add_action( 'template_redirect', '_wp_admin_bar_init', 0 );
add_action( 'admin_init', '_wp_admin_bar_init' );
add_action( 'wp_enqueue_scripts', 'wp_enqueue_admin_bar_bump_styles' );
add_action( 'wp_enqueue_scripts', 'wp_enqueue_admin_bar_header_styles' );
add_action( 'admin_enqueue_scripts', 'wp_enqueue_admin_bar_header_styles' );
add_action( 'before_signup_header', '_wp_admin_bar_init' );
add_action( 'activate_header', '_wp_admin_bar_init' );
add_action( 'wp_body_open', 'wp_admin_bar_render', 0 );
add_action( 'wp_footer', 'wp_admin_bar_render', 1000 ); // Back-compat for themes not using `wp_body_open`.
add_action( 'in_admin_header', 'wp_admin_bar_render', 0 );
// Former admin filters that can also be hooked on the front end.
add_action( 'media_buttons', 'media_buttons' );
add_filter( 'image_send_to_editor', 'image_add_caption', 20, 8 );
add_filter( 'media_send_to_editor', 'image_media_send_to_editor', 10, 3 );
// Embeds.
add_action( 'rest_api_init', 'wp_oembed_register_route' );
add_filter( 'rest_pre_serve_request', '_oembed_rest_pre_serve_request', 10, 4 );
add_action( 'wp_head', 'wp_oembed_add_discovery_links' );
add_action( 'wp_head', 'wp_oembed_add_host_js' ); // Back-compat for sites disabling oEmbed host JS by removing action.
add_filter( 'embed_oembed_html', 'wp_maybe_enqueue_oembed_host_js' );
add_action( 'embed_head', 'enqueue_embed_scripts', 1 );
add_action( 'embed_head', 'print_emoji_detection_script' );
add_action( 'embed_head', 'wp_enqueue_embed_styles', 9 );
add_action( 'embed_head', 'print_embed_styles' ); // Retained for backwards-compatibility. Unhooked by wp_enqueue_embed_styles().
add_action( 'embed_head', 'wp_print_head_scripts', 20 );
add_action( 'embed_head', 'wp_print_styles', 20 );
add_action( 'embed_head', 'wp_robots' );
add_action( 'embed_head', 'rel_canonical' );
add_action( 'embed_head', 'locale_stylesheet', 30 );
add_action( 'enqueue_embed_scripts', 'wp_enqueue_emoji_styles' );
add_action( 'embed_content_meta', 'print_embed_comments_button' );
add_action( 'embed_content_meta', 'print_embed_sharing_button' );
add_action( 'embed_footer', 'print_embed_sharing_dialog' );
add_action( 'embed_footer', 'print_embed_scripts' );
add_action( 'embed_footer', 'wp_print_footer_scripts', 20 );
add_filter( 'excerpt_more', 'wp_embed_excerpt_more', 20 );
add_filter( 'the_excerpt_embed', 'wptexturize' );
add_filter( 'the_excerpt_embed', 'convert_chars' );
add_filter( 'the_excerpt_embed', 'wpautop' );
add_filter( 'the_excerpt_embed', 'shortcode_unautop' );
add_filter( 'the_excerpt_embed', 'wp_embed_excerpt_attachment' );
add_filter( 'oembed_dataparse', 'wp_filter_oembed_iframe_title_attribute', 5, 3 );
add_filter( 'oembed_dataparse', 'wp_filter_oembed_result', 10, 3 );
add_filter( 'oembed_response_data', 'get_oembed_response_data_rich', 10, 4 );
add_filter( 'pre_oembed_result', 'wp_filter_pre_oembed_result', 10, 3 );
// Capabilities.
add_filter( 'user_has_cap', 'wp_maybe_grant_install_languages_cap', 1 );
add_filter( 'user_has_cap', 'wp_maybe_grant_resume_extensions_caps', 1 );
add_filter( 'user_has_cap', 'wp_maybe_grant_site_health_caps', 1, 4 );
// Block templates post type and rendering.
add_filter( 'render_block_context', '_block_template_render_without_post_block_context' );
add_filter( 'pre_wp_unique_post_slug', 'wp_filter_wp_template_unique_post_slug', 10, 5 );
add_action( 'save_post_wp_template_part', 'wp_set_unique_slug_on_create_template_part' );
add_action( 'wp_enqueue_scripts', 'wp_enqueue_block_template_skip_link' );
add_action( 'wp_footer', 'the_block_template_skip_link' ); // Retained for backwards-compatibility. Unhooked by wp_enqueue_block_template_skip_link().
add_action( 'after_setup_theme', 'wp_enable_block_templates', 1 );
add_action( 'wp_loaded', '_add_template_loader_filters' );
// wp_navigation post type.
add_filter( 'rest_wp_navigation_item_schema', array( 'WP_Navigation_Fallback', 'update_wp_navigation_post_schema' ) );
// Fluid typography.
add_filter( 'render_block', 'wp_render_typography_support', 10, 2 );
// User preferences.
add_action( 'init', 'wp_register_persisted_preferences_meta' );
// CPT wp_block custom postmeta field.
add_action( 'init', 'wp_create_initial_post_meta' );
// Include revisioned meta when considering whether a post revision has changed.
add_filter( 'wp_save_post_revision_post_has_changed', 'wp_check_revisioned_meta_fields_have_changed', 10, 3 );
// Save revisioned post meta immediately after a revision is saved
add_action( '_wp_put_post_revision', 'wp_save_revisioned_meta_fields', 10, 2 );
// Include revisioned meta when creating or updating an autosave revision.
add_action( 'wp_creating_autosave', 'wp_autosave_post_revisioned_meta_fields' );
// When restoring revisions, also restore revisioned meta.
add_action( 'wp_restore_post_revision', 'wp_restore_post_revision_meta', 10, 2 );
// Font management.
add_action( 'wp_head', 'wp_print_font_faces', 50 );
add_action( 'deleted_post', '_wp_after_delete_font_family', 10, 2 );
add_action( 'before_delete_post', '_wp_before_delete_font_face', 10, 2 );
add_action( 'init', '_wp_register_default_font_collections' );
// Add ignoredHookedBlocks metadata attribute to the template and template part post types.
add_filter( 'rest_pre_insert_wp_template', 'inject_ignored_hooked_blocks_metadata_attributes' );
add_filter( 'rest_pre_insert_wp_template_part', 'inject_ignored_hooked_blocks_metadata_attributes' );
// Update ignoredHookedBlocks postmeta for wp_navigation post type.
add_filter( 'rest_pre_insert_wp_navigation', 'update_ignored_hooked_blocks_postmeta' );
// Inject hooked blocks into the wp_navigation post type REST response.
add_filter( 'rest_prepare_wp_navigation', 'insert_hooked_blocks_into_rest_response', 10, 2 );
unset( $filter, $action );
/**
* WordPress Rewrite API
*
* @package WordPress
* @subpackage Rewrite
*/
/**
* Endpoint mask that matches nothing.
*
* @since 2.1.0
*/
define( 'EP_NONE', 0 );
/**
* Endpoint mask that matches post permalinks.
*
* @since 2.1.0
*/
define( 'EP_PERMALINK', 1 );
/**
* Endpoint mask that matches attachment permalinks.
*
* @since 2.1.0
*/
define( 'EP_ATTACHMENT', 2 );
/**
* Endpoint mask that matches any date archives.
*
* @since 2.1.0
*/
define( 'EP_DATE', 4 );
/**
* Endpoint mask that matches yearly archives.
*
* @since 2.1.0
*/
define( 'EP_YEAR', 8 );
/**
* Endpoint mask that matches monthly archives.
*
* @since 2.1.0
*/
define( 'EP_MONTH', 16 );
/**
* Endpoint mask that matches daily archives.
*
* @since 2.1.0
*/
define( 'EP_DAY', 32 );
/**
* Endpoint mask that matches the site root.
*
* @since 2.1.0
*/
define( 'EP_ROOT', 64 );
/**
* Endpoint mask that matches comment feeds.
*
* @since 2.1.0
*/
define( 'EP_COMMENTS', 128 );
/**
* Endpoint mask that matches searches.
*
* Note that this only matches a search at a "pretty" URL such as
* `/search/my-search-term`, not `?s=my-search-term`.
*
* @since 2.1.0
*/
define( 'EP_SEARCH', 256 );
/**
* Endpoint mask that matches category archives.
*
* @since 2.1.0
*/
define( 'EP_CATEGORIES', 512 );
/**
* Endpoint mask that matches tag archives.
*
* @since 2.3.0
*/
define( 'EP_TAGS', 1024 );
/**
* Endpoint mask that matches author archives.
*
* @since 2.1.0
*/
define( 'EP_AUTHORS', 2048 );
/**
* Endpoint mask that matches pages.
*
* @since 2.1.0
*/
define( 'EP_PAGES', 4096 );
/**
* Endpoint mask that matches all archive views.
*
* @since 3.7.0
*/
define( 'EP_ALL_ARCHIVES', EP_DATE | EP_YEAR | EP_MONTH | EP_DAY | EP_CATEGORIES | EP_TAGS | EP_AUTHORS );
/**
* Endpoint mask that matches everything.
*
* @since 2.1.0
*/
define( 'EP_ALL', EP_PERMALINK | EP_ATTACHMENT | EP_ROOT | EP_COMMENTS | EP_SEARCH | EP_PAGES | EP_ALL_ARCHIVES );
/**
* Adds a rewrite rule that transforms a URL structure to a set of query vars.
*
* Any value in the $after parameter that isn't 'bottom' will result in the rule
* being placed at the top of the rewrite rules.
*
* @since 2.1.0
* @since 4.4.0 Array support was added to the `$query` parameter.
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param string $regex Regular expression to match request against.
* @param string|array $query The corresponding query vars for this rewrite rule.
* @param string $after Optional. Priority of the new rule. Accepts 'top'
* or 'bottom'. Default 'bottom'.
*/
function add_rewrite_rule( $regex, $query, $after = 'bottom' ) {
global $wp_rewrite;
$wp_rewrite->add_rule( $regex, $query, $after );
}
/**
* Adds a new rewrite tag (like %postname%).
*
* The `$query` parameter is optional. If it is omitted you must ensure that you call
* this on, or before, the {@see 'init'} hook. This is because `$query` defaults to
* `$tag=`, and for this to work a new query var has to be added.
*
* @since 2.1.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
* @global WP $wp Current WordPress environment instance.
*
* @param string $tag Name of the new rewrite tag.
* @param string $regex Regular expression to substitute the tag for in rewrite rules.
* @param string $query Optional. String to append to the rewritten query. Must end in '='. Default empty.
*/
function add_rewrite_tag( $tag, $regex, $query = '' ) {
// Validate the tag's name.
if ( strlen( $tag ) < 3 || '%' !== $tag[0] || '%' !== $tag[ strlen( $tag ) - 1 ] ) {
return;
}
global $wp_rewrite, $wp;
if ( empty( $query ) ) {
$qv = trim( $tag, '%' );
$wp->add_query_var( $qv );
$query = $qv . '=';
}
$wp_rewrite->add_rewrite_tag( $tag, $regex, $query );
}
/**
* Removes an existing rewrite tag (like %postname%).
*
* @since 4.5.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param string $tag Name of the rewrite tag.
*/
function remove_rewrite_tag( $tag ) {
global $wp_rewrite;
$wp_rewrite->remove_rewrite_tag( $tag );
}
/**
* Adds a permalink structure.
*
* @since 3.0.0
*
* @see WP_Rewrite::add_permastruct()
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param string $name Name for permalink structure.
* @param string $struct Permalink structure.
* @param array $args Optional. Arguments for building the rules from the permalink structure,
* see WP_Rewrite::add_permastruct() for full details. Default empty array.
*/
function add_permastruct( $name, $struct, $args = array() ) {
global $wp_rewrite;
// Back-compat for the old parameters: $with_front and $ep_mask.
if ( ! is_array( $args ) ) {
$args = array( 'with_front' => $args );
}
if ( func_num_args() === 4 ) {
$args['ep_mask'] = func_get_arg( 3 );
}
$wp_rewrite->add_permastruct( $name, $struct, $args );
}
/**
* Removes a permalink structure.
*
* Can only be used to remove permastructs that were added using add_permastruct().
* Built-in permastructs cannot be removed.
*
* @since 4.5.0
*
* @see WP_Rewrite::remove_permastruct()
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param string $name Name for permalink structure.
*/
function remove_permastruct( $name ) {
global $wp_rewrite;
$wp_rewrite->remove_permastruct( $name );
}
/**
* Adds a new feed type like /atom1/.
*
* @since 2.1.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param string $feedname Feed name. Should not start with '_'.
* @param callable $callback Callback to run on feed display.
* @return string Feed action name.
*/
function add_feed( $feedname, $callback ) {
global $wp_rewrite;
if ( ! in_array( $feedname, $wp_rewrite->feeds, true ) ) {
$wp_rewrite->feeds[] = $feedname;
}
$hook = 'do_feed_' . $feedname;
// Remove default function hook.
remove_action( $hook, $hook );
add_action( $hook, $callback, 10, 2 );
return $hook;
}
/**
* Removes rewrite rules and then recreate rewrite rules.
*
* @since 3.0.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param bool $hard Whether to update .htaccess (hard flush) or just update
* rewrite_rules option (soft flush). Default is true (hard).
*/
function flush_rewrite_rules( $hard = true ) {
global $wp_rewrite;
if ( is_callable( array( $wp_rewrite, 'flush_rules' ) ) ) {
$wp_rewrite->flush_rules( $hard );
}
}
/**
* Adds an endpoint, like /trackback/.
*
* Adding an endpoint creates extra rewrite rules for each of the matching
* places specified by the provided bitmask. For example:
*
* add_rewrite_endpoint( 'json', EP_PERMALINK | EP_PAGES );
*
* will add a new rewrite rule ending with "json(/(.*))?/?$" for every permastruct
* that describes a permalink (post) or page. This is rewritten to "json=$match"
* where $match is the part of the URL matched by the endpoint regex (e.g. "foo" in
* "[permalink]/json/foo/").
*
* A new query var with the same name as the endpoint will also be created.
*
* When specifying $places ensure that you are using the EP_* constants (or a
* combination of them using the bitwise OR operator) as their values are not
* guaranteed to remain static (especially `EP_ALL`).
*
* Be sure to flush the rewrite rules - see flush_rewrite_rules() - when your plugin gets
* activated and deactivated.
*
* @since 2.1.0
* @since 4.3.0 Added support for skipping query var registration by passing `false` to `$query_var`.
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param string $name Name of the endpoint.
* @param int $places Endpoint mask describing the places the endpoint should be added.
* Accepts a mask of:
* - `EP_ALL`
* - `EP_NONE`
* - `EP_ALL_ARCHIVES`
* - `EP_ATTACHMENT`
* - `EP_AUTHORS`
* - `EP_CATEGORIES`
* - `EP_COMMENTS`
* - `EP_DATE`
* - `EP_DAY`
* - `EP_MONTH`
* - `EP_PAGES`
* - `EP_PERMALINK`
* - `EP_ROOT`
* - `EP_SEARCH`
* - `EP_TAGS`
* - `EP_YEAR`
* @param string|bool $query_var Name of the corresponding query variable. Pass `false` to skip registering a query_var
* for this endpoint. Defaults to the value of `$name`.
*/
function add_rewrite_endpoint( $name, $places, $query_var = true ) {
global $wp_rewrite;
$wp_rewrite->add_endpoint( $name, $places, $query_var );
}
/**
* Filters the URL base for taxonomies.
*
* To remove any manually prepended /index.php/.
*
* @access private
* @since 2.6.0
*
* @param string $base The taxonomy base that we're going to filter
* @return string
*/
function _wp_filter_taxonomy_base( $base ) {
if ( ! empty( $base ) ) {
$base = preg_replace( '|^/index\.php/|', '', $base );
$base = trim( $base, '/' );
}
return $base;
}
/**
* Resolves numeric slugs that collide with date permalinks.
*
* Permalinks of posts with numeric slugs can sometimes look to WP_Query::parse_query()
* like a date archive, as when your permalink structure is `/%year%/%postname%/` and
* a post with post_name '05' has the URL `/2015/05/`.
*
* This function detects conflicts of this type and resolves them in favor of the
* post permalink.
*
* Note that, since 4.3.0, wp_unique_post_slug() prevents the creation of post slugs
* that would result in a date archive conflict. The resolution performed in this
* function is primarily for legacy content, as well as cases when the admin has changed
* the site's permalink structure in a way that introduces URL conflicts.
*
* @since 4.3.0
*
* @param array $query_vars Optional. Query variables for setting up the loop, as determined in
* WP::parse_request(). Default empty array.
* @return array Returns the original array of query vars, with date/post conflicts resolved.
*/
function wp_resolve_numeric_slug_conflicts( $query_vars = array() ) {
if ( ! isset( $query_vars['year'] ) && ! isset( $query_vars['monthnum'] ) && ! isset( $query_vars['day'] ) ) {
return $query_vars;
}
// Identify the 'postname' position in the permastruct array.
$permastructs = array_values( array_filter( explode( '/', get_option( 'permalink_structure' ) ) ) );
$postname_index = array_search( '%postname%', $permastructs, true );
if ( false === $postname_index ) {
return $query_vars;
}
/*
* A numeric slug could be confused with a year, month, or day, depending on position. To account for
* the possibility of post pagination (eg 2015/2 for the second page of a post called '2015'), our
* `is_*` checks are generous: check for year-slug clashes when `is_year` *or* `is_month`, and check
* for month-slug clashes when `is_month` *or* `is_day`.
*/
$compare = '';
if ( 0 === $postname_index && ( isset( $query_vars['year'] ) || isset( $query_vars['monthnum'] ) ) ) {
$compare = 'year';
} elseif ( $postname_index && '%year%' === $permastructs[ $postname_index - 1 ] && ( isset( $query_vars['monthnum'] ) || isset( $query_vars['day'] ) ) ) {
$compare = 'monthnum';
} elseif ( $postname_index && '%monthnum%' === $permastructs[ $postname_index - 1 ] && isset( $query_vars['day'] ) ) {
$compare = 'day';
}
if ( ! $compare ) {
return $query_vars;
}
// This is the potentially clashing slug.
$value = '';
if ( $compare && array_key_exists( $compare, $query_vars ) ) {
$value = $query_vars[ $compare ];
}
$post = get_page_by_path( $value, OBJECT, 'post' );
if ( ! ( $post instanceof WP_Post ) ) {
return $query_vars;
}
// If the date of the post doesn't match the date specified in the URL, resolve to the date archive.
if ( preg_match( '/^([0-9]{4})\-([0-9]{2})/', $post->post_date, $matches ) && isset( $query_vars['year'] ) && ( 'monthnum' === $compare || 'day' === $compare ) ) {
// $matches[1] is the year the post was published.
if ( (int) $query_vars['year'] !== (int) $matches[1] ) {
return $query_vars;
}
// $matches[2] is the month the post was published.
if ( 'day' === $compare && isset( $query_vars['monthnum'] ) && (int) $query_vars['monthnum'] !== (int) $matches[2] ) {
return $query_vars;
}
}
/*
* If the located post contains nextpage pagination, then the URL chunk following postname may be
* intended as the page number. Verify that it's a valid page before resolving to it.
*/
$maybe_page = '';
if ( 'year' === $compare && isset( $query_vars['monthnum'] ) ) {
$maybe_page = $query_vars['monthnum'];
} elseif ( 'monthnum' === $compare && isset( $query_vars['day'] ) ) {
$maybe_page = $query_vars['day'];
}
// Bug found in #11694 - 'page' was returning '/4'.
$maybe_page = (int) trim( $maybe_page, '/' );
$post_page_count = substr_count( $post->post_content, '' ) + 1;
// If the post doesn't have multiple pages, but a 'page' candidate is found, resolve to the date archive.
if ( 1 === $post_page_count && $maybe_page ) {
return $query_vars;
}
// If the post has multiple pages and the 'page' number isn't valid, resolve to the date archive.
if ( $post_page_count > 1 && $maybe_page > $post_page_count ) {
return $query_vars;
}
// If we've gotten to this point, we have a slug/date clash. First, adjust for nextpage.
if ( '' !== $maybe_page ) {
$query_vars['page'] = (int) $maybe_page;
}
// Next, unset autodetected date-related query vars.
unset( $query_vars['year'] );
unset( $query_vars['monthnum'] );
unset( $query_vars['day'] );
// Then, set the identified post.
$query_vars['name'] = $post->post_name;
// Finally, return the modified query vars.
return $query_vars;
}
/**
* Examines a URL and try to determine the post ID it represents.
*
* Checks are supposedly from the hosted site blog.
*
* @since 1.0.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
* @global WP $wp Current WordPress environment instance.
*
* @param string $url Permalink to check.
* @return int Post ID, or 0 on failure.
*/
function url_to_postid( $url ) {
global $wp_rewrite;
/**
* Filters the URL to derive the post ID from.
*
* @since 2.2.0
*
* @param string $url The URL to derive the post ID from.
*/
$url = apply_filters( 'url_to_postid', $url );
$url_host = parse_url( $url, PHP_URL_HOST );
if ( is_string( $url_host ) ) {
$url_host = str_replace( 'www.', '', $url_host );
} else {
$url_host = '';
}
$home_url_host = parse_url( home_url(), PHP_URL_HOST );
if ( is_string( $home_url_host ) ) {
$home_url_host = str_replace( 'www.', '', $home_url_host );
} else {
$home_url_host = '';
}
// Bail early if the URL does not belong to this site.
if ( $url_host && $url_host !== $home_url_host ) {
return 0;
}
// First, check to see if there is a 'p=N' or 'page_id=N' to match against.
if ( preg_match( '#[?&](p|page_id|attachment_id)=(\d+)#', $url, $values ) ) {
$id = absint( $values[2] );
if ( $id ) {
return $id;
}
}
// Get rid of the #anchor.
$url_split = explode( '#', $url );
$url = $url_split[0];
// Get rid of URL ?query=string.
$url_split = explode( '?', $url );
$url = $url_split[0];
// Set the correct URL scheme.
$scheme = parse_url( home_url(), PHP_URL_SCHEME );
$url = set_url_scheme( $url, $scheme );
// Add 'www.' if it is absent and should be there.
if ( str_contains( home_url(), '://www.' ) && ! str_contains( $url, '://www.' ) ) {
$url = str_replace( '://', '://www.', $url );
}
// Strip 'www.' if it is present and shouldn't be.
if ( ! str_contains( home_url(), '://www.' ) ) {
$url = str_replace( '://www.', '://', $url );
}
if ( trim( $url, '/' ) === home_url() && 'page' === get_option( 'show_on_front' ) ) {
$page_on_front = get_option( 'page_on_front' );
if ( $page_on_front && get_post( $page_on_front ) instanceof WP_Post ) {
return (int) $page_on_front;
}
}
// Check to see if we are using rewrite rules.
$rewrite = $wp_rewrite->wp_rewrite_rules();
// Not using rewrite rules, and 'p=N' and 'page_id=N' methods failed, so we're out of options.
if ( empty( $rewrite ) ) {
return 0;
}
// Strip 'index.php/' if we're not using path info permalinks.
if ( ! $wp_rewrite->using_index_permalinks() ) {
$url = str_replace( $wp_rewrite->index . '/', '', $url );
}
if ( str_contains( trailingslashit( $url ), home_url( '/' ) ) ) {
// Chop off http://domain.com/[path].
$url = str_replace( home_url(), '', $url );
} else {
// Chop off /path/to/blog.
$home_path = parse_url( home_url( '/' ) );
$home_path = isset( $home_path['path'] ) ? $home_path['path'] : '';
$url = preg_replace( sprintf( '#^%s#', preg_quote( $home_path ) ), '', trailingslashit( $url ) );
}
// Trim leading and lagging slashes.
$url = trim( $url, '/' );
$request = $url;
$post_type_query_vars = array();
foreach ( get_post_types( array(), 'objects' ) as $post_type => $t ) {
if ( ! empty( $t->query_var ) ) {
$post_type_query_vars[ $t->query_var ] = $post_type;
}
}
// Look for matches.
$request_match = $request;
foreach ( (array) $rewrite as $match => $query ) {
/*
* If the requesting file is the anchor of the match,
* prepend it to the path info.
*/
if ( ! empty( $url ) && ( $url !== $request ) && str_starts_with( $match, $url ) ) {
$request_match = $url . '/' . $request;
}
if ( preg_match( "#^$match#", $request_match, $matches ) ) {
if ( $wp_rewrite->use_verbose_page_rules && preg_match( '/pagename=\$matches\[([0-9]+)\]/', $query, $varmatch ) ) {
// This is a verbose page match, let's check to be sure about it.
$page = get_page_by_path( $matches[ $varmatch[1] ] );
if ( ! $page ) {
continue;
}
$post_status_obj = get_post_status_object( $page->post_status );
if ( ! $post_status_obj->public && ! $post_status_obj->protected
&& ! $post_status_obj->private && $post_status_obj->exclude_from_search ) {
continue;
}
}
/*
* Got a match.
* Trim the query of everything up to the '?'.
*/
$query = preg_replace( '!^.+\?!', '', $query );
// Substitute the substring matches into the query.
$query = addslashes( WP_MatchesMapRegex::apply( $query, $matches ) );
// Filter out non-public query vars.
global $wp;
parse_str( $query, $query_vars );
$query = array();
foreach ( (array) $query_vars as $key => $value ) {
if ( in_array( (string) $key, $wp->public_query_vars, true ) ) {
$query[ $key ] = $value;
if ( isset( $post_type_query_vars[ $key ] ) ) {
$query['post_type'] = $post_type_query_vars[ $key ];
$query['name'] = $value;
}
}
}
// Resolve conflicts between posts with numeric slugs and date archive queries.
$query = wp_resolve_numeric_slug_conflicts( $query );
// Do the query.
$query = new WP_Query( $query );
if ( ! empty( $query->posts ) && $query->is_singular ) {
return $query->post->ID;
} else {
return 0;
}
}
}
return 0;
}
/**
* Rewrite API: WP_Rewrite class
*
* @package WordPress
* @subpackage Rewrite
* @since 1.5.0
*/
/**
* Core class used to implement a rewrite component API.
*
* The WordPress Rewrite class writes the rewrite module rules to the .htaccess
* file. It also handles parsing the request to get the correct setup for the
* WordPress Query class.
*
* The Rewrite along with WP class function as a front controller for WordPress.
* You can add rules to trigger your page view and processing using this
* component. The full functionality of a front controller does not exist,
* meaning you can't define how the template files load based on the rewrite
* rules.
*
* @since 1.5.0
*/
#[AllowDynamicProperties]
class WP_Rewrite {
/**
* Permalink structure for posts.
*
* @since 1.5.0
* @var string
*/
public $permalink_structure;
/**
* Whether to add trailing slashes.
*
* @since 2.2.0
* @var bool
*/
public $use_trailing_slashes;
/**
* Base for the author permalink structure (example.com/$author_base/authorname).
*
* @since 1.5.0
* @var string
*/
public $author_base = 'author';
/**
* Permalink structure for author archives.
*
* @since 1.5.0
* @var string
*/
public $author_structure;
/**
* Permalink structure for date archives.
*
* @since 1.5.0
* @var string
*/
public $date_structure;
/**
* Permalink structure for pages.
*
* @since 1.5.0
* @var string
*/
public $page_structure;
/**
* Base of the search permalink structure (example.com/$search_base/query).
*
* @since 1.5.0
* @var string
*/
public $search_base = 'search';
/**
* Permalink structure for searches.
*
* @since 1.5.0
* @var string
*/
public $search_structure;
/**
* Comments permalink base.
*
* @since 1.5.0
* @var string
*/
public $comments_base = 'comments';
/**
* Pagination permalink base.
*
* @since 3.1.0
* @var string
*/
public $pagination_base = 'page';
/**
* Comments pagination permalink base.
*
* @since 4.2.0
* @var string
*/
public $comments_pagination_base = 'comment-page';
/**
* Feed permalink base.
*
* @since 1.5.0
* @var string
*/
public $feed_base = 'feed';
/**
* Comments feed permalink structure.
*
* @since 1.5.0
* @var string
*/
public $comment_feed_structure;
/**
* Feed request permalink structure.
*
* @since 1.5.0
* @var string
*/
public $feed_structure;
/**
* The static portion of the post permalink structure.
*
* If the permalink structure is "/archive/%post_id%" then the front
* is "/archive/". If the permalink structure is "/%year%/%postname%/"
* then the front is "/".
*
* @since 1.5.0
* @var string
*
* @see WP_Rewrite::init()
*/
public $front;
/**
* The prefix for all permalink structures.
*
* If PATHINFO/index permalinks are in use then the root is the value of
* `WP_Rewrite::$index` with a trailing slash appended. Otherwise the root
* will be empty.
*
* @since 1.5.0
* @var string
*
* @see WP_Rewrite::init()
* @see WP_Rewrite::using_index_permalinks()
*/
public $root = '';
/**
* The name of the index file which is the entry point to all requests.
*
* @since 1.5.0
* @var string
*/
public $index = 'index.php';
/**
* Variable name to use for regex matches in the rewritten query.
*
* @since 1.5.0
* @var string
*/
public $matches = '';
/**
* Rewrite rules to match against the request to find the redirect or query.
*
* @since 1.5.0
* @var string[]
*/
public $rules;
/**
* Additional rules added external to the rewrite class.
*
* Those not generated by the class, see add_rewrite_rule().
*
* @since 2.1.0
* @var string[]
*/
public $extra_rules = array();
/**
* Additional rules that belong at the beginning to match first.
*
* Those not generated by the class, see add_rewrite_rule().
*
* @since 2.3.0
* @var string[]
*/
public $extra_rules_top = array();
/**
* Rules that don't redirect to WordPress' index.php.
*
* These rules are written to the mod_rewrite portion of the .htaccess,
* and are added by add_external_rule().
*
* @since 2.1.0
* @var string[]
*/
public $non_wp_rules = array();
/**
* Extra permalink structures, e.g. categories, added by add_permastruct().
*
* @since 2.1.0
* @var array[]
*/
public $extra_permastructs = array();
/**
* Endpoints (like /trackback/) added by add_rewrite_endpoint().
*
* @since 2.1.0
* @var array[]
*/
public $endpoints;
/**
* Whether to write every mod_rewrite rule for WordPress into the .htaccess file.
*
* This is off by default, turning it on might print a lot of rewrite rules
* to the .htaccess file.
*
* @since 2.0.0
* @var bool
*
* @see WP_Rewrite::mod_rewrite_rules()
*/
public $use_verbose_rules = false;
/**
* Could post permalinks be confused with those of pages?
*
* If the first rewrite tag in the post permalink structure is one that could
* also match a page name (e.g. %postname% or %author%) then this flag is
* set to true. Prior to WordPress 3.3 this flag indicated that every page
* would have a set of rules added to the top of the rewrite rules array.
* Now it tells WP::parse_request() to check if a URL matching the page
* permastruct is actually a page before accepting it.
*
* @since 2.5.0
* @var bool
*
* @see WP_Rewrite::init()
*/
public $use_verbose_page_rules = true;
/**
* Rewrite tags that can be used in permalink structures.
*
* These are translated into the regular expressions stored in
* `WP_Rewrite::$rewritereplace` and are rewritten to the query
* variables listed in WP_Rewrite::$queryreplace.
*
* Additional tags can be added with add_rewrite_tag().
*
* @since 1.5.0
* @var string[]
*/
public $rewritecode = array(
'%year%',
'%monthnum%',
'%day%',
'%hour%',
'%minute%',
'%second%',
'%postname%',
'%post_id%',
'%author%',
'%pagename%',
'%search%',
);
/**
* Regular expressions to be substituted into rewrite rules in place
* of rewrite tags, see WP_Rewrite::$rewritecode.
*
* @since 1.5.0
* @var string[]
*/
public $rewritereplace = array(
'([0-9]{4})',
'([0-9]{1,2})',
'([0-9]{1,2})',
'([0-9]{1,2})',
'([0-9]{1,2})',
'([0-9]{1,2})',
'([^/]+)',
'([0-9]+)',
'([^/]+)',
'([^/]+?)',
'(.+)',
);
/**
* Query variables that rewrite tags map to, see WP_Rewrite::$rewritecode.
*
* @since 1.5.0
* @var string[]
*/
public $queryreplace = array(
'year=',
'monthnum=',
'day=',
'hour=',
'minute=',
'second=',
'name=',
'p=',
'author_name=',
'pagename=',
's=',
);
/**
* Supported default feeds.
*
* @since 1.5.0
* @var string[]
*/
public $feeds = array( 'feed', 'rdf', 'rss', 'rss2', 'atom' );
/**
* Determines whether permalinks are being used.
*
* This can be either rewrite module or permalink in the HTTP query string.
*
* @since 1.5.0
*
* @return bool True, if permalinks are enabled.
*/
public function using_permalinks() {
return ! empty( $this->permalink_structure );
}
/**
* Determines whether permalinks are being used and rewrite module is not enabled.
*
* Means that permalink links are enabled and index.php is in the URL.
*
* @since 1.5.0
*
* @return bool Whether permalink links are enabled and index.php is in the URL.
*/
public function using_index_permalinks() {
if ( empty( $this->permalink_structure ) ) {
return false;
}
// If the index is not in the permalink, we're using mod_rewrite.
return preg_match( '#^/*' . $this->index . '#', $this->permalink_structure );
}
/**
* Determines whether permalinks are being used and rewrite module is enabled.
*
* Using permalinks and index.php is not in the URL.
*
* @since 1.5.0
*
* @return bool Whether permalink links are enabled and index.php is NOT in the URL.
*/
public function using_mod_rewrite_permalinks() {
return $this->using_permalinks() && ! $this->using_index_permalinks();
}
/**
* Indexes for matches for usage in preg_*() functions.
*
* The format of the string is, with empty matches property value, '$NUM'.
* The 'NUM' will be replaced with the value in the $number parameter. With
* the matches property not empty, the value of the returned string will
* contain that value of the matches property. The format then will be
* '$MATCHES[NUM]', with MATCHES as the value in the property and NUM the
* value of the $number parameter.
*
* @since 1.5.0
*
* @param int $number Index number.
* @return string
*/
public function preg_index( $number ) {
$match_prefix = '$';
$match_suffix = '';
if ( ! empty( $this->matches ) ) {
$match_prefix = '$' . $this->matches . '[';
$match_suffix = ']';
}
return "$match_prefix$number$match_suffix";
}
/**
* Retrieves all pages and attachments for pages URIs.
*
* The attachments are for those that have pages as parents and will be
* retrieved.
*
* @since 2.5.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @return array Array of page URIs as first element and attachment URIs as second element.
*/
public function page_uri_index() {
global $wpdb;
// Get pages in order of hierarchy, i.e. children after parents.
$pages = $wpdb->get_results( "SELECT ID, post_name, post_parent FROM $wpdb->posts WHERE post_type = 'page' AND post_status != 'auto-draft'" );
$posts = get_page_hierarchy( $pages );
// If we have no pages get out quick.
if ( ! $posts ) {
return array( array(), array() );
}
// Now reverse it, because we need parents after children for rewrite rules to work properly.
$posts = array_reverse( $posts, true );
$page_uris = array();
$page_attachment_uris = array();
foreach ( $posts as $id => $post ) {
// URL => page name.
$uri = get_page_uri( $id );
$attachments = $wpdb->get_results( $wpdb->prepare( "SELECT ID, post_name, post_parent FROM $wpdb->posts WHERE post_type = 'attachment' AND post_parent = %d", $id ) );
if ( ! empty( $attachments ) ) {
foreach ( $attachments as $attachment ) {
$attach_uri = get_page_uri( $attachment->ID );
$page_attachment_uris[ $attach_uri ] = $attachment->ID;
}
}
$page_uris[ $uri ] = $id;
}
return array( $page_uris, $page_attachment_uris );
}
/**
* Retrieves all of the rewrite rules for pages.
*
* @since 1.5.0
*
* @return string[] Page rewrite rules.
*/
public function page_rewrite_rules() {
// The extra .? at the beginning prevents clashes with other regular expressions in the rules array.
$this->add_rewrite_tag( '%pagename%', '(.?.+?)', 'pagename=' );
return $this->generate_rewrite_rules( $this->get_page_permastruct(), EP_PAGES, true, true, false, false );
}
/**
* Retrieves date permalink structure, with year, month, and day.
*
* The permalink structure for the date, if not set already depends on the
* permalink structure. It can be one of three formats. The first is year,
* month, day; the second is day, month, year; and the last format is month,
* day, year. These are matched against the permalink structure for which
* one is used. If none matches, then the default will be used, which is
* year, month, day.
*
* Prevents post ID and date permalinks from overlapping. In the case of
* post_id, the date permalink will be prepended with front permalink with
* 'date/' before the actual permalink to form the complete date permalink
* structure.
*
* @since 1.5.0
*
* @return string|false Date permalink structure on success, false on failure.
*/
public function get_date_permastruct() {
if ( isset( $this->date_structure ) ) {
return $this->date_structure;
}
if ( empty( $this->permalink_structure ) ) {
$this->date_structure = '';
return false;
}
// The date permalink must have year, month, and day separated by slashes.
$endians = array( '%year%/%monthnum%/%day%', '%day%/%monthnum%/%year%', '%monthnum%/%day%/%year%' );
$this->date_structure = '';
$date_endian = '';
foreach ( $endians as $endian ) {
if ( str_contains( $this->permalink_structure, $endian ) ) {
$date_endian = $endian;
break;
}
}
if ( empty( $date_endian ) ) {
$date_endian = '%year%/%monthnum%/%day%';
}
/*
* Do not allow the date tags and %post_id% to overlap in the permalink
* structure. If they do, move the date tags to $front/date/.
*/
$front = $this->front;
preg_match_all( '/%.+?%/', $this->permalink_structure, $tokens );
$tok_index = 1;
foreach ( (array) $tokens[0] as $token ) {
if ( '%post_id%' === $token && ( $tok_index <= 3 ) ) {
$front = $front . 'date/';
break;
}
++$tok_index;
}
$this->date_structure = $front . $date_endian;
return $this->date_structure;
}
/**
* Retrieves the year permalink structure without month and day.
*
* Gets the date permalink structure and strips out the month and day
* permalink structures.
*
* @since 1.5.0
*
* @return string|false Year permalink structure on success, false on failure.
*/
public function get_year_permastruct() {
$structure = $this->get_date_permastruct();
if ( empty( $structure ) ) {
return false;
}
$structure = str_replace( '%monthnum%', '', $structure );
$structure = str_replace( '%day%', '', $structure );
$structure = preg_replace( '#/+#', '/', $structure );
return $structure;
}
/**
* Retrieves the month permalink structure without day and with year.
*
* Gets the date permalink structure and strips out the day permalink
* structures. Keeps the year permalink structure.
*
* @since 1.5.0
*
* @return string|false Year/Month permalink structure on success, false on failure.
*/
public function get_month_permastruct() {
$structure = $this->get_date_permastruct();
if ( empty( $structure ) ) {
return false;
}
$structure = str_replace( '%day%', '', $structure );
$structure = preg_replace( '#/+#', '/', $structure );
return $structure;
}
/**
* Retrieves the day permalink structure with month and year.
*
* Keeps date permalink structure with all year, month, and day.
*
* @since 1.5.0
*
* @return string|false Year/Month/Day permalink structure on success, false on failure.
*/
public function get_day_permastruct() {
return $this->get_date_permastruct();
}
/**
* Retrieves the permalink structure for categories.
*
* If the category_base property has no value, then the category structure
* will have the front property value, followed by 'category', and finally
* '%category%'. If it does, then the root property will be used, along with
* the category_base property value.
*
* @since 1.5.0
*
* @return string|false Category permalink structure on success, false on failure.
*/
public function get_category_permastruct() {
return $this->get_extra_permastruct( 'category' );
}
/**
* Retrieves the permalink structure for tags.
*
* If the tag_base property has no value, then the tag structure will have
* the front property value, followed by 'tag', and finally '%tag%'. If it
* does, then the root property will be used, along with the tag_base
* property value.
*
* @since 2.3.0
*
* @return string|false Tag permalink structure on success, false on failure.
*/
public function get_tag_permastruct() {
return $this->get_extra_permastruct( 'post_tag' );
}
/**
* Retrieves an extra permalink structure by name.
*
* @since 2.5.0
*
* @param string $name Permalink structure name.
* @return string|false Permalink structure string on success, false on failure.
*/
public function get_extra_permastruct( $name ) {
if ( empty( $this->permalink_structure ) ) {
return false;
}
if ( isset( $this->extra_permastructs[ $name ] ) ) {
return $this->extra_permastructs[ $name ]['struct'];
}
return false;
}
/**
* Retrieves the author permalink structure.
*
* The permalink structure is front property, author base, and finally
* '/%author%'. Will set the author_structure property and then return it
* without attempting to set the value again.
*
* @since 1.5.0
*
* @return string|false Author permalink structure on success, false on failure.
*/
public function get_author_permastruct() {
if ( isset( $this->author_structure ) ) {
return $this->author_structure;
}
if ( empty( $this->permalink_structure ) ) {
$this->author_structure = '';
return false;
}
$this->author_structure = $this->front . $this->author_base . '/%author%';
return $this->author_structure;
}
/**
* Retrieves the search permalink structure.
*
* The permalink structure is root property, search base, and finally
* '/%search%'. Will set the search_structure property and then return it
* without attempting to set the value again.
*
* @since 1.5.0
*
* @return string|false Search permalink structure on success, false on failure.
*/
public function get_search_permastruct() {
if ( isset( $this->search_structure ) ) {
return $this->search_structure;
}
if ( empty( $this->permalink_structure ) ) {
$this->search_structure = '';
return false;
}
$this->search_structure = $this->root . $this->search_base . '/%search%';
return $this->search_structure;
}
/**
* Retrieves the page permalink structure.
*
* The permalink structure is root property, and '%pagename%'. Will set the
* page_structure property and then return it without attempting to set the
* value again.
*
* @since 1.5.0
*
* @return string|false Page permalink structure on success, false on failure.
*/
public function get_page_permastruct() {
if ( isset( $this->page_structure ) ) {
return $this->page_structure;
}
if ( empty( $this->permalink_structure ) ) {
$this->page_structure = '';
return false;
}
$this->page_structure = $this->root . '%pagename%';
return $this->page_structure;
}
/**
* Retrieves the feed permalink structure.
*
* The permalink structure is root property, feed base, and finally
* '/%feed%'. Will set the feed_structure property and then return it
* without attempting to set the value again.
*
* @since 1.5.0
*
* @return string|false Feed permalink structure on success, false on failure.
*/
public function get_feed_permastruct() {
if ( isset( $this->feed_structure ) ) {
return $this->feed_structure;
}
if ( empty( $this->permalink_structure ) ) {
$this->feed_structure = '';
return false;
}
$this->feed_structure = $this->root . $this->feed_base . '/%feed%';
return $this->feed_structure;
}
/**
* Retrieves the comment feed permalink structure.
*
* The permalink structure is root property, comment base property, feed
* base and finally '/%feed%'. Will set the comment_feed_structure property
* and then return it without attempting to set the value again.
*
* @since 1.5.0
*
* @return string|false Comment feed permalink structure on success, false on failure.
*/
public function get_comment_feed_permastruct() {
if ( isset( $this->comment_feed_structure ) ) {
return $this->comment_feed_structure;
}
if ( empty( $this->permalink_structure ) ) {
$this->comment_feed_structure = '';
return false;
}
$this->comment_feed_structure = $this->root . $this->comments_base . '/' . $this->feed_base . '/%feed%';
return $this->comment_feed_structure;
}
/**
* Adds or updates existing rewrite tags (e.g. %postname%).
*
* If the tag already exists, replace the existing pattern and query for
* that tag, otherwise add the new tag.
*
* @since 1.5.0
*
* @see WP_Rewrite::$rewritecode
* @see WP_Rewrite::$rewritereplace
* @see WP_Rewrite::$queryreplace
*
* @param string $tag Name of the rewrite tag to add or update.
* @param string $regex Regular expression to substitute the tag for in rewrite rules.
* @param string $query String to append to the rewritten query. Must end in '='.
*/
public function add_rewrite_tag( $tag, $regex, $query ) {
$position = array_search( $tag, $this->rewritecode, true );
if ( false !== $position && null !== $position ) {
$this->rewritereplace[ $position ] = $regex;
$this->queryreplace[ $position ] = $query;
} else {
$this->rewritecode[] = $tag;
$this->rewritereplace[] = $regex;
$this->queryreplace[] = $query;
}
}
/**
* Removes an existing rewrite tag.
*
* @since 4.5.0
*
* @see WP_Rewrite::$rewritecode
* @see WP_Rewrite::$rewritereplace
* @see WP_Rewrite::$queryreplace
*
* @param string $tag Name of the rewrite tag to remove.
*/
public function remove_rewrite_tag( $tag ) {
$position = array_search( $tag, $this->rewritecode, true );
if ( false !== $position && null !== $position ) {
unset( $this->rewritecode[ $position ] );
unset( $this->rewritereplace[ $position ] );
unset( $this->queryreplace[ $position ] );
}
}
/**
* Generates rewrite rules from a permalink structure.
*
* The main WP_Rewrite function for building the rewrite rule list. The
* contents of the function is a mix of black magic and regular expressions,
* so best just ignore the contents and move to the parameters.
*
* @since 1.5.0
*
* @param string $permalink_structure The permalink structure.
* @param int $ep_mask Optional. Endpoint mask defining what endpoints are added to the structure.
* Accepts a mask of:
* - `EP_ALL`
* - `EP_NONE`
* - `EP_ALL_ARCHIVES`
* - `EP_ATTACHMENT`
* - `EP_AUTHORS`
* - `EP_CATEGORIES`
* - `EP_COMMENTS`
* - `EP_DATE`
* - `EP_DAY`
* - `EP_MONTH`
* - `EP_PAGES`
* - `EP_PERMALINK`
* - `EP_ROOT`
* - `EP_SEARCH`
* - `EP_TAGS`
* - `EP_YEAR`
* Default `EP_NONE`.
* @param bool $paged Optional. Whether archive pagination rules should be added for the structure.
* Default true.
* @param bool $feed Optional. Whether feed rewrite rules should be added for the structure.
* Default true.
* @param bool $forcomments Optional. Whether the feed rules should be a query for a comments feed.
* Default false.
* @param bool $walk_dirs Optional. Whether the 'directories' making up the structure should be walked
* over and rewrite rules built for each in-turn. Default true.
* @param bool $endpoints Optional. Whether endpoints should be applied to the generated rewrite rules.
* Default true.
* @return string[] Array of rewrite rules keyed by their regex pattern.
*/
public function generate_rewrite_rules( $permalink_structure, $ep_mask = EP_NONE, $paged = true, $feed = true, $forcomments = false, $walk_dirs = true, $endpoints = true ) {
// Build a regex to match the feed section of URLs, something like (feed|atom|rss|rss2)/?
$feedregex2 = '';
foreach ( (array) $this->feeds as $feed_name ) {
$feedregex2 .= $feed_name . '|';
}
$feedregex2 = '(' . trim( $feedregex2, '|' ) . ')/?$';
/*
* $feedregex is identical but with /feed/ added on as well, so URLs like /feed/atom
* and /atom are both possible
*/
$feedregex = $this->feed_base . '/' . $feedregex2;
// Build a regex to match the trackback and page/xx parts of URLs.
$trackbackregex = 'trackback/?$';
$pageregex = $this->pagination_base . '/?([0-9]{1,})/?$';
$commentregex = $this->comments_pagination_base . '-([0-9]{1,})/?$';
$embedregex = 'embed/?$';
// Build up an array of endpoint regexes to append => queries to append.
if ( $endpoints ) {
$ep_query_append = array();
foreach ( (array) $this->endpoints as $endpoint ) {
// Match everything after the endpoint name, but allow for nothing to appear there.
$epmatch = $endpoint[1] . '(/(.*))?/?$';
// This will be appended on to the rest of the query for each dir.
$epquery = '&' . $endpoint[2] . '=';
$ep_query_append[ $epmatch ] = array( $endpoint[0], $epquery );
}
}
// Get everything up to the first rewrite tag.
$front = substr( $permalink_structure, 0, strpos( $permalink_structure, '%' ) );
// Build an array of the tags (note that said array ends up being in $tokens[0]).
preg_match_all( '/%.+?%/', $permalink_structure, $tokens );
$num_tokens = count( $tokens[0] );
$index = $this->index; // Probably 'index.php'.
$feedindex = $index;
$trackbackindex = $index;
$embedindex = $index;
/*
* Build a list from the rewritecode and queryreplace arrays, that will look something
* like tagname=$matches[i] where i is the current $i.
*/
$queries = array();
for ( $i = 0; $i < $num_tokens; ++$i ) {
if ( 0 < $i ) {
$queries[ $i ] = $queries[ $i - 1 ] . '&';
} else {
$queries[ $i ] = '';
}
$query_token = str_replace( $this->rewritecode, $this->queryreplace, $tokens[0][ $i ] ) . $this->preg_index( $i + 1 );
$queries[ $i ] .= $query_token;
}
// Get the structure, minus any cruft (stuff that isn't tags) at the front.
$structure = $permalink_structure;
if ( '/' !== $front ) {
$structure = str_replace( $front, '', $structure );
}
/*
* Create a list of dirs to walk over, making rewrite rules for each level
* so for example, a $structure of /%year%/%monthnum%/%postname% would create
* rewrite rules for /%year%/, /%year%/%monthnum%/ and /%year%/%monthnum%/%postname%
*/
$structure = trim( $structure, '/' );
$dirs = $walk_dirs ? explode( '/', $structure ) : array( $structure );
$num_dirs = count( $dirs );
// Strip slashes from the front of $front.
$front = preg_replace( '|^/+|', '', $front );
// The main workhorse loop.
$post_rewrite = array();
$struct = $front;
for ( $j = 0; $j < $num_dirs; ++$j ) {
// Get the struct for this dir, and trim slashes off the front.
$struct .= $dirs[ $j ] . '/'; // Accumulate. see comment near explode('/', $structure) above.
$struct = ltrim( $struct, '/' );
// Replace tags with regexes.
$match = str_replace( $this->rewritecode, $this->rewritereplace, $struct );
// Make a list of tags, and store how many there are in $num_toks.
$num_toks = preg_match_all( '/%.+?%/', $struct, $toks );
// Get the 'tagname=$matches[i]'.
$query = ( ! empty( $num_toks ) && isset( $queries[ $num_toks - 1 ] ) ) ? $queries[ $num_toks - 1 ] : '';
// Set up $ep_mask_specific which is used to match more specific URL types.
switch ( $dirs[ $j ] ) {
case '%year%':
$ep_mask_specific = EP_YEAR;
break;
case '%monthnum%':
$ep_mask_specific = EP_MONTH;
break;
case '%day%':
$ep_mask_specific = EP_DAY;
break;
default:
$ep_mask_specific = EP_NONE;
}
// Create query for /page/xx.
$pagematch = $match . $pageregex;
$pagequery = $index . '?' . $query . '&paged=' . $this->preg_index( $num_toks + 1 );
// Create query for /comment-page-xx.
$commentmatch = $match . $commentregex;
$commentquery = $index . '?' . $query . '&cpage=' . $this->preg_index( $num_toks + 1 );
if ( get_option( 'page_on_front' ) ) {
// Create query for Root /comment-page-xx.
$rootcommentmatch = $match . $commentregex;
$rootcommentquery = $index . '?' . $query . '&page_id=' . get_option( 'page_on_front' ) . '&cpage=' . $this->preg_index( $num_toks + 1 );
}
// Create query for /feed/(feed|atom|rss|rss2|rdf).
$feedmatch = $match . $feedregex;
$feedquery = $feedindex . '?' . $query . '&feed=' . $this->preg_index( $num_toks + 1 );
// Create query for /(feed|atom|rss|rss2|rdf) (see comment near creation of $feedregex).
$feedmatch2 = $match . $feedregex2;
$feedquery2 = $feedindex . '?' . $query . '&feed=' . $this->preg_index( $num_toks + 1 );
// Create query and regex for embeds.
$embedmatch = $match . $embedregex;
$embedquery = $embedindex . '?' . $query . '&embed=true';
// If asked to, turn the feed queries into comment feed ones.
if ( $forcomments ) {
$feedquery .= '&withcomments=1';
$feedquery2 .= '&withcomments=1';
}
// Start creating the array of rewrites for this dir.
$rewrite = array();
// ...adding on /feed/ regexes => queries.
if ( $feed ) {
$rewrite = array(
$feedmatch => $feedquery,
$feedmatch2 => $feedquery2,
$embedmatch => $embedquery,
);
}
// ...and /page/xx ones.
if ( $paged ) {
$rewrite = array_merge( $rewrite, array( $pagematch => $pagequery ) );
}
// Only on pages with comments add ../comment-page-xx/.
if ( EP_PAGES & $ep_mask || EP_PERMALINK & $ep_mask ) {
$rewrite = array_merge( $rewrite, array( $commentmatch => $commentquery ) );
} elseif ( EP_ROOT & $ep_mask && get_option( 'page_on_front' ) ) {
$rewrite = array_merge( $rewrite, array( $rootcommentmatch => $rootcommentquery ) );
}
// Do endpoints.
if ( $endpoints ) {
foreach ( (array) $ep_query_append as $regex => $ep ) {
// Add the endpoints on if the mask fits.
if ( $ep[0] & $ep_mask || $ep[0] & $ep_mask_specific ) {
$rewrite[ $match . $regex ] = $index . '?' . $query . $ep[1] . $this->preg_index( $num_toks + 2 );
}
}
}
// If we've got some tags in this dir.
if ( $num_toks ) {
$post = false;
$page = false;
/*
* Check to see if this dir is permalink-level: i.e. the structure specifies an
* individual post. Do this by checking it contains at least one of 1) post name,
* 2) post ID, 3) page name, 4) timestamp (year, month, day, hour, second and
* minute all present). Set these flags now as we need them for the endpoints.
*/
if ( str_contains( $struct, '%postname%' )
|| str_contains( $struct, '%post_id%' )
|| str_contains( $struct, '%pagename%' )
|| ( str_contains( $struct, '%year%' )
&& str_contains( $struct, '%monthnum%' )
&& str_contains( $struct, '%day%' )
&& str_contains( $struct, '%hour%' )
&& str_contains( $struct, '%minute%' )
&& str_contains( $struct, '%second%' ) )
) {
$post = true;
if ( str_contains( $struct, '%pagename%' ) ) {
$page = true;
}
}
if ( ! $post ) {
// For custom post types, we need to add on endpoints as well.
foreach ( get_post_types( array( '_builtin' => false ) ) as $ptype ) {
if ( str_contains( $struct, "%$ptype%" ) ) {
$post = true;
// This is for page style attachment URLs.
$page = is_post_type_hierarchical( $ptype );
break;
}
}
}
// If creating rules for a permalink, do all the endpoints like attachments etc.
if ( $post ) {
// Create query and regex for trackback.
$trackbackmatch = $match . $trackbackregex;
$trackbackquery = $trackbackindex . '?' . $query . '&tb=1';
// Create query and regex for embeds.
$embedmatch = $match . $embedregex;
$embedquery = $embedindex . '?' . $query . '&embed=true';
// Trim slashes from the end of the regex for this dir.
$match = rtrim( $match, '/' );
// Get rid of brackets.
$submatchbase = str_replace( array( '(', ')' ), '', $match );
// Add a rule for at attachments, which take the form of /some-text.
$sub1 = $submatchbase . '/([^/]+)/';
// Add trackback regex /trackback/...
$sub1tb = $sub1 . $trackbackregex;
// And /feed/(atom|...)
$sub1feed = $sub1 . $feedregex;
// And /(feed|atom...)
$sub1feed2 = $sub1 . $feedregex2;
// And /comment-page-xx
$sub1comment = $sub1 . $commentregex;
// And /embed/...
$sub1embed = $sub1 . $embedregex;
/*
* Add another rule to match attachments in the explicit form:
* /attachment/some-text
*/
$sub2 = $submatchbase . '/attachment/([^/]+)/';
// And add trackbacks /attachment/trackback.
$sub2tb = $sub2 . $trackbackregex;
// Feeds, /attachment/feed/(atom|...)
$sub2feed = $sub2 . $feedregex;
// And feeds again on to this /attachment/(feed|atom...)
$sub2feed2 = $sub2 . $feedregex2;
// And /comment-page-xx
$sub2comment = $sub2 . $commentregex;
// And /embed/...
$sub2embed = $sub2 . $embedregex;
// Create queries for these extra tag-ons we've just dealt with.
$subquery = $index . '?attachment=' . $this->preg_index( 1 );
$subtbquery = $subquery . '&tb=1';
$subfeedquery = $subquery . '&feed=' . $this->preg_index( 2 );
$subcommentquery = $subquery . '&cpage=' . $this->preg_index( 2 );
$subembedquery = $subquery . '&embed=true';
// Do endpoints for attachments.
if ( ! empty( $endpoints ) ) {
foreach ( (array) $ep_query_append as $regex => $ep ) {
if ( $ep[0] & EP_ATTACHMENT ) {
$rewrite[ $sub1 . $regex ] = $subquery . $ep[1] . $this->preg_index( 3 );
$rewrite[ $sub2 . $regex ] = $subquery . $ep[1] . $this->preg_index( 3 );
}
}
}
/*
* Now we've finished with endpoints, finish off the $sub1 and $sub2 matches
* add a ? as we don't have to match that last slash, and finally a $ so we
* match to the end of the URL
*/
$sub1 .= '?$';
$sub2 .= '?$';
/*
* Post pagination, e.g. /2/
* Previously: '(/[0-9]+)?/?$', which produced '/2' for page.
* When cast to int, returned 0.
*/
$match = $match . '(?:/([0-9]+))?/?$';
$query = $index . '?' . $query . '&page=' . $this->preg_index( $num_toks + 1 );
// Not matching a permalink so this is a lot simpler.
} else {
// Close the match and finalize the query.
$match .= '?$';
$query = $index . '?' . $query;
}
/*
* Create the final array for this dir by joining the $rewrite array (which currently
* only contains rules/queries for trackback, pages etc) to the main regex/query for
* this dir
*/
$rewrite = array_merge( $rewrite, array( $match => $query ) );
// If we're matching a permalink, add those extras (attachments etc) on.
if ( $post ) {
// Add trackback.
$rewrite = array_merge( array( $trackbackmatch => $trackbackquery ), $rewrite );
// Add embed.
$rewrite = array_merge( array( $embedmatch => $embedquery ), $rewrite );
// Add regexes/queries for attachments, attachment trackbacks and so on.
if ( ! $page ) {
// Require /attachment/stuff form for pages because of confusion with subpages.
$rewrite = array_merge(
$rewrite,
array(
$sub1 => $subquery,
$sub1tb => $subtbquery,
$sub1feed => $subfeedquery,
$sub1feed2 => $subfeedquery,
$sub1comment => $subcommentquery,
$sub1embed => $subembedquery,
)
);
}
$rewrite = array_merge(
array(
$sub2 => $subquery,
$sub2tb => $subtbquery,
$sub2feed => $subfeedquery,
$sub2feed2 => $subfeedquery,
$sub2comment => $subcommentquery,
$sub2embed => $subembedquery,
),
$rewrite
);
}
}
// Add the rules for this dir to the accumulating $post_rewrite.
$post_rewrite = array_merge( $rewrite, $post_rewrite );
}
// The finished rules. phew!
return $post_rewrite;
}
/**
* Generates rewrite rules with permalink structure and walking directory only.
*
* Shorten version of WP_Rewrite::generate_rewrite_rules() that allows for shorter
* list of parameters. See the method for longer description of what generating
* rewrite rules does.
*
* @since 1.5.0
*
* @see WP_Rewrite::generate_rewrite_rules() See for long description and rest of parameters.
*
* @param string $permalink_structure The permalink structure to generate rules.
* @param bool $walk_dirs Optional. Whether to create list of directories to walk over.
* Default false.
* @return array An array of rewrite rules keyed by their regex pattern.
*/
public function generate_rewrite_rule( $permalink_structure, $walk_dirs = false ) {
return $this->generate_rewrite_rules( $permalink_structure, EP_NONE, false, false, false, $walk_dirs );
}
/**
* Constructs rewrite matches and queries from permalink structure.
*
* Runs the action {@see 'generate_rewrite_rules'} with the parameter that is an
* reference to the current WP_Rewrite instance to further manipulate the
* permalink structures and rewrite rules. Runs the {@see 'rewrite_rules_array'}
* filter on the full rewrite rule array.
*
* There are two ways to manipulate the rewrite rules, one by hooking into
* the {@see 'generate_rewrite_rules'} action and gaining full control of the
* object or just manipulating the rewrite rule array before it is passed
* from the function.
*
* @since 1.5.0
*
* @return string[] An associative array of matches and queries.
*/
public function rewrite_rules() {
$rewrite = array();
if ( empty( $this->permalink_structure ) ) {
return $rewrite;
}
// robots.txt -- only if installed at the root.
$home_path = parse_url( home_url() );
$robots_rewrite = ( empty( $home_path['path'] ) || '/' === $home_path['path'] ) ? array( 'robots\.txt$' => $this->index . '?robots=1' ) : array();
// favicon.ico -- only if installed at the root.
$favicon_rewrite = ( empty( $home_path['path'] ) || '/' === $home_path['path'] ) ? array( 'favicon\.ico$' => $this->index . '?favicon=1' ) : array();
// sitemap.xml -- only if installed at the root.
$sitemap_rewrite = ( empty( $home_path['path'] ) || '/' === $home_path['path'] ) ? array( 'sitemap\.xml' => $this->index . '??sitemap=index' ) : array();
// Old feed and service files.
$deprecated_files = array(
'.*wp-(atom|rdf|rss|rss2|feed|commentsrss2)\.php$' => $this->index . '?feed=old',
'.*wp-app\.php(/.*)?$' => $this->index . '?error=403',
);
// Registration rules.
$registration_pages = array();
if ( is_multisite() && is_main_site() ) {
$registration_pages['.*wp-signup.php$'] = $this->index . '?signup=true';
$registration_pages['.*wp-activate.php$'] = $this->index . '?activate=true';
}
// Deprecated.
$registration_pages['.*wp-register.php$'] = $this->index . '?register=true';
// Post rewrite rules.
$post_rewrite = $this->generate_rewrite_rules( $this->permalink_structure, EP_PERMALINK );
/**
* Filters rewrite rules used for "post" archives.
*
* @since 1.5.0
*
* @param string[] $post_rewrite Array of rewrite rules for posts, keyed by their regex pattern.
*/
$post_rewrite = apply_filters( 'post_rewrite_rules', $post_rewrite );
// Date rewrite rules.
$date_rewrite = $this->generate_rewrite_rules( $this->get_date_permastruct(), EP_DATE );
/**
* Filters rewrite rules used for date archives.
*
* Likely date archives would include `/yyyy/`, `/yyyy/mm/`, and `/yyyy/mm/dd/`.
*
* @since 1.5.0
*
* @param string[] $date_rewrite Array of rewrite rules for date archives, keyed by their regex pattern.
*/
$date_rewrite = apply_filters( 'date_rewrite_rules', $date_rewrite );
// Root-level rewrite rules.
$root_rewrite = $this->generate_rewrite_rules( $this->root . '/', EP_ROOT );
/**
* Filters rewrite rules used for root-level archives.
*
* Likely root-level archives would include pagination rules for the homepage
* as well as site-wide post feeds (e.g. `/feed/`, and `/feed/atom/`).
*
* @since 1.5.0
*
* @param string[] $root_rewrite Array of root-level rewrite rules, keyed by their regex pattern.
*/
$root_rewrite = apply_filters( 'root_rewrite_rules', $root_rewrite );
// Comments rewrite rules.
$comments_rewrite = $this->generate_rewrite_rules( $this->root . $this->comments_base, EP_COMMENTS, false, true, true, false );
/**
* Filters rewrite rules used for comment feed archives.
*
* Likely comments feed archives include `/comments/feed/` and `/comments/feed/atom/`.
*
* @since 1.5.0
*
* @param string[] $comments_rewrite Array of rewrite rules for the site-wide comments feeds, keyed by their regex pattern.
*/
$comments_rewrite = apply_filters( 'comments_rewrite_rules', $comments_rewrite );
// Search rewrite rules.
$search_structure = $this->get_search_permastruct();
$search_rewrite = $this->generate_rewrite_rules( $search_structure, EP_SEARCH );
/**
* Filters rewrite rules used for search archives.
*
* Likely search-related archives include `/search/search+query/` as well as
* pagination and feed paths for a search.
*
* @since 1.5.0
*
* @param string[] $search_rewrite Array of rewrite rules for search queries, keyed by their regex pattern.
*/
$search_rewrite = apply_filters( 'search_rewrite_rules', $search_rewrite );
// Author rewrite rules.
$author_rewrite = $this->generate_rewrite_rules( $this->get_author_permastruct(), EP_AUTHORS );
/**
* Filters rewrite rules used for author archives.
*
* Likely author archives would include `/author/author-name/`, as well as
* pagination and feed paths for author archives.
*
* @since 1.5.0
*
* @param string[] $author_rewrite Array of rewrite rules for author archives, keyed by their regex pattern.
*/
$author_rewrite = apply_filters( 'author_rewrite_rules', $author_rewrite );
// Pages rewrite rules.
$page_rewrite = $this->page_rewrite_rules();
/**
* Filters rewrite rules used for "page" post type archives.
*
* @since 1.5.0
*
* @param string[] $page_rewrite Array of rewrite rules for the "page" post type, keyed by their regex pattern.
*/
$page_rewrite = apply_filters( 'page_rewrite_rules', $page_rewrite );
// Extra permastructs.
foreach ( $this->extra_permastructs as $permastructname => $struct ) {
if ( is_array( $struct ) ) {
if ( count( $struct ) === 2 ) {
$rules = $this->generate_rewrite_rules( $struct[0], $struct[1] );
} else {
$rules = $this->generate_rewrite_rules( $struct['struct'], $struct['ep_mask'], $struct['paged'], $struct['feed'], $struct['forcomments'], $struct['walk_dirs'], $struct['endpoints'] );
}
} else {
$rules = $this->generate_rewrite_rules( $struct );
}
/**
* Filters rewrite rules used for individual permastructs.
*
* The dynamic portion of the hook name, `$permastructname`, refers
* to the name of the registered permastruct.
*
* Possible hook names include:
*
* - `category_rewrite_rules`
* - `post_format_rewrite_rules`
* - `post_tag_rewrite_rules`
*
* @since 3.1.0
*
* @param string[] $rules Array of rewrite rules generated for the current permastruct, keyed by their regex pattern.
*/
$rules = apply_filters( "{$permastructname}_rewrite_rules", $rules );
if ( 'post_tag' === $permastructname ) {
/**
* Filters rewrite rules used specifically for Tags.
*
* @since 2.3.0
* @deprecated 3.1.0 Use {@see 'post_tag_rewrite_rules'} instead.
*
* @param string[] $rules Array of rewrite rules generated for tags, keyed by their regex pattern.
*/
$rules = apply_filters_deprecated( 'tag_rewrite_rules', array( $rules ), '3.1.0', 'post_tag_rewrite_rules' );
}
$this->extra_rules_top = array_merge( $this->extra_rules_top, $rules );
}
// Put them together.
if ( $this->use_verbose_page_rules ) {
$this->rules = array_merge( $this->extra_rules_top, $robots_rewrite, $favicon_rewrite, $sitemap_rewrite, $deprecated_files, $registration_pages, $root_rewrite, $comments_rewrite, $search_rewrite, $author_rewrite, $date_rewrite, $page_rewrite, $post_rewrite, $this->extra_rules );
} else {
$this->rules = array_merge( $this->extra_rules_top, $robots_rewrite, $favicon_rewrite, $sitemap_rewrite, $deprecated_files, $registration_pages, $root_rewrite, $comments_rewrite, $search_rewrite, $author_rewrite, $date_rewrite, $post_rewrite, $page_rewrite, $this->extra_rules );
}
/**
* Fires after the rewrite rules are generated.
*
* @since 1.5.0
*
* @param WP_Rewrite $wp_rewrite Current WP_Rewrite instance (passed by reference).
*/
do_action_ref_array( 'generate_rewrite_rules', array( &$this ) );
/**
* Filters the full set of generated rewrite rules.
*
* @since 1.5.0
*
* @param string[] $rules The compiled array of rewrite rules, keyed by their regex pattern.
*/
$this->rules = apply_filters( 'rewrite_rules_array', $this->rules );
return $this->rules;
}
/**
* Retrieves the rewrite rules.
*
* The difference between this method and WP_Rewrite::rewrite_rules() is that
* this method stores the rewrite rules in the 'rewrite_rules' option and retrieves
* it. This prevents having to process all of the permalinks to get the rewrite rules
* in the form of caching.
*
* @since 1.5.0
*
* @return string[] Array of rewrite rules keyed by their regex pattern.
*/
public function wp_rewrite_rules() {
$this->rules = get_option( 'rewrite_rules' );
if ( empty( $this->rules ) ) {
$this->refresh_rewrite_rules();
}
return $this->rules;
}
/**
* Refreshes the rewrite rules, saving the fresh value to the database.
*
* If the {@see 'wp_loaded'} action has not occurred yet, will postpone saving to the database.
*
* @since 6.4.0
*/
private function refresh_rewrite_rules() {
$this->rules = '';
$this->matches = 'matches';
$this->rewrite_rules();
if ( ! did_action( 'wp_loaded' ) ) {
/*
* It is not safe to save the results right now, as the rules may be partial.
* Need to give all rules the chance to register.
*/
add_action( 'wp_loaded', array( $this, 'flush_rules' ) );
} else {
update_option( 'rewrite_rules', $this->rules );
}
}
/**
* Retrieves mod_rewrite-formatted rewrite rules to write to .htaccess.
*
* Does not actually write to the .htaccess file, but creates the rules for
* the process that will.
*
* Will add the non_wp_rules property rules to the .htaccess file before
* the WordPress rewrite rules one.
*
* @since 1.5.0
*
* @return string
*/
public function mod_rewrite_rules() {
if ( ! $this->using_permalinks() ) {
return '';
}
$site_root = parse_url( site_url() );
if ( isset( $site_root['path'] ) ) {
$site_root = trailingslashit( $site_root['path'] );
}
$home_root = parse_url( home_url() );
if ( isset( $home_root['path'] ) ) {
$home_root = trailingslashit( $home_root['path'] );
} else {
$home_root = '/';
}
$rules = "\n";
$rules .= "RewriteEngine On\n";
$rules .= "RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]\n";
$rules .= "RewriteBase $home_root\n";
// Prevent -f checks on index.php.
$rules .= "RewriteRule ^index\.php$ - [L]\n";
// Add in the rules that don't redirect to WP's index.php (and thus shouldn't be handled by WP at all).
foreach ( (array) $this->non_wp_rules as $match => $query ) {
// Apache 1.3 does not support the reluctant (non-greedy) modifier.
$match = str_replace( '.+?', '.+', $match );
$rules .= 'RewriteRule ^' . $match . ' ' . $home_root . $query . " [QSA,L]\n";
}
if ( $this->use_verbose_rules ) {
$this->matches = '';
$rewrite = $this->rewrite_rules();
$num_rules = count( $rewrite );
$rules .= "RewriteCond %{REQUEST_FILENAME} -f [OR]\n" .
"RewriteCond %{REQUEST_FILENAME} -d\n" .
"RewriteRule ^.*$ - [S=$num_rules]\n";
foreach ( (array) $rewrite as $match => $query ) {
// Apache 1.3 does not support the reluctant (non-greedy) modifier.
$match = str_replace( '.+?', '.+', $match );
if ( str_contains( $query, $this->index ) ) {
$rules .= 'RewriteRule ^' . $match . ' ' . $home_root . $query . " [QSA,L]\n";
} else {
$rules .= 'RewriteRule ^' . $match . ' ' . $site_root . $query . " [QSA,L]\n";
}
}
} else {
$rules .= "RewriteCond %{REQUEST_FILENAME} !-f\n" .
"RewriteCond %{REQUEST_FILENAME} !-d\n" .
"RewriteRule . {$home_root}{$this->index} [L]\n";
}
$rules .= "\n";
/**
* Filters the list of rewrite rules formatted for output to an .htaccess file.
*
* @since 1.5.0
*
* @param string $rules mod_rewrite Rewrite rules formatted for .htaccess.
*/
$rules = apply_filters( 'mod_rewrite_rules', $rules );
/**
* Filters the list of rewrite rules formatted for output to an .htaccess file.
*
* @since 1.5.0
* @deprecated 1.5.0 Use the {@see 'mod_rewrite_rules'} filter instead.
*
* @param string $rules mod_rewrite Rewrite rules formatted for .htaccess.
*/
return apply_filters_deprecated( 'rewrite_rules', array( $rules ), '1.5.0', 'mod_rewrite_rules' );
}
/**
* Retrieves IIS7 URL Rewrite formatted rewrite rules to write to web.config file.
*
* Does not actually write to the web.config file, but creates the rules for
* the process that will.
*
* @since 2.8.0
*
* @param bool $add_parent_tags Optional. Whether to add parent tags to the rewrite rule sets.
* Default false.
* @return string IIS7 URL rewrite rule sets.
*/
public function iis7_url_rewrite_rules( $add_parent_tags = false ) {
if ( ! $this->using_permalinks() ) {
return '';
}
$rules = '';
if ( $add_parent_tags ) {
$rules .= '
';
}
$rules .= '
';
if ( $add_parent_tags ) {
$rules .= '
';
}
/**
* Filters the list of rewrite rules formatted for output to a web.config.
*
* @since 2.8.0
*
* @param string $rules Rewrite rules formatted for IIS web.config.
*/
return apply_filters( 'iis7_url_rewrite_rules', $rules );
}
/**
* Adds a rewrite rule that transforms a URL structure to a set of query vars.
*
* Any value in the $after parameter that isn't 'bottom' will result in the rule
* being placed at the top of the rewrite rules.
*
* @since 2.1.0
* @since 4.4.0 Array support was added to the `$query` parameter.
*
* @param string $regex Regular expression to match request against.
* @param string|array $query The corresponding query vars for this rewrite rule.
* @param string $after Optional. Priority of the new rule. Accepts 'top'
* or 'bottom'. Default 'bottom'.
*/
public function add_rule( $regex, $query, $after = 'bottom' ) {
if ( is_array( $query ) ) {
$external = false;
$query = add_query_arg( $query, 'index.php' );
} else {
$index = ! str_contains( $query, '?' ) ? strlen( $query ) : strpos( $query, '?' );
$front = substr( $query, 0, $index );
$external = $front !== $this->index;
}
// "external" = it doesn't correspond to index.php.
if ( $external ) {
$this->add_external_rule( $regex, $query );
} else {
if ( 'bottom' === $after ) {
$this->extra_rules = array_merge( $this->extra_rules, array( $regex => $query ) );
} else {
$this->extra_rules_top = array_merge( $this->extra_rules_top, array( $regex => $query ) );
}
}
}
/**
* Adds a rewrite rule that doesn't correspond to index.php.
*
* @since 2.1.0
*
* @param string $regex Regular expression to match request against.
* @param string $query The corresponding query vars for this rewrite rule.
*/
public function add_external_rule( $regex, $query ) {
$this->non_wp_rules[ $regex ] = $query;
}
/**
* Adds an endpoint, like /trackback/.
*
* @since 2.1.0
* @since 3.9.0 $query_var parameter added.
* @since 4.3.0 Added support for skipping query var registration by passing `false` to `$query_var`.
*
* @see add_rewrite_endpoint() for full documentation.
* @global WP $wp Current WordPress environment instance.
*
* @param string $name Name of the endpoint.
* @param int $places Endpoint mask describing the places the endpoint should be added.
* Accepts a mask of:
* - `EP_ALL`
* - `EP_NONE`
* - `EP_ALL_ARCHIVES`
* - `EP_ATTACHMENT`
* - `EP_AUTHORS`
* - `EP_CATEGORIES`
* - `EP_COMMENTS`
* - `EP_DATE`
* - `EP_DAY`
* - `EP_MONTH`
* - `EP_PAGES`
* - `EP_PERMALINK`
* - `EP_ROOT`
* - `EP_SEARCH`
* - `EP_TAGS`
* - `EP_YEAR`
* @param string|bool $query_var Optional. Name of the corresponding query variable. Pass `false` to
* skip registering a query_var for this endpoint. Defaults to the
* value of `$name`.
*/
public function add_endpoint( $name, $places, $query_var = true ) {
global $wp;
// For backward compatibility, if null has explicitly been passed as `$query_var`, assume `true`.
if ( true === $query_var || null === $query_var ) {
$query_var = $name;
}
$this->endpoints[] = array( $places, $name, $query_var );
if ( $query_var ) {
$wp->add_query_var( $query_var );
}
}
/**
* Adds a new permalink structure.
*
* A permalink structure (permastruct) is an abstract definition of a set of rewrite rules;
* it is an easy way of expressing a set of regular expressions that rewrite to a set of
* query strings. The new permastruct is added to the WP_Rewrite::$extra_permastructs array.
*
* When the rewrite rules are built by WP_Rewrite::rewrite_rules(), all of these extra
* permastructs are passed to WP_Rewrite::generate_rewrite_rules() which transforms them
* into the regular expressions that many love to hate.
*
* The `$args` parameter gives you control over how WP_Rewrite::generate_rewrite_rules()
* works on the new permastruct.
*
* @since 2.5.0
*
* @param string $name Name for permalink structure.
* @param string $struct Permalink structure (e.g. category/%category%)
* @param array $args {
* Optional. Arguments for building rewrite rules based on the permalink structure.
* Default empty array.
*
* @type bool $with_front Whether the structure should be prepended with `WP_Rewrite::$front`.
* Default true.
* @type int $ep_mask The endpoint mask defining which endpoints are added to the structure.
* Accepts a mask of:
* - `EP_ALL`
* - `EP_NONE`
* - `EP_ALL_ARCHIVES`
* - `EP_ATTACHMENT`
* - `EP_AUTHORS`
* - `EP_CATEGORIES`
* - `EP_COMMENTS`
* - `EP_DATE`
* - `EP_DAY`
* - `EP_MONTH`
* - `EP_PAGES`
* - `EP_PERMALINK`
* - `EP_ROOT`
* - `EP_SEARCH`
* - `EP_TAGS`
* - `EP_YEAR`
* Default `EP_NONE`.
* @type bool $paged Whether archive pagination rules should be added for the structure.
* Default true.
* @type bool $feed Whether feed rewrite rules should be added for the structure. Default true.
* @type bool $forcomments Whether the feed rules should be a query for a comments feed. Default false.
* @type bool $walk_dirs Whether the 'directories' making up the structure should be walked over
* and rewrite rules built for each in-turn. Default true.
* @type bool $endpoints Whether endpoints should be applied to the generated rules. Default true.
* }
*/
public function add_permastruct( $name, $struct, $args = array() ) {
// Back-compat for the old parameters: $with_front and $ep_mask.
if ( ! is_array( $args ) ) {
$args = array( 'with_front' => $args );
}
if ( func_num_args() === 4 ) {
$args['ep_mask'] = func_get_arg( 3 );
}
$defaults = array(
'with_front' => true,
'ep_mask' => EP_NONE,
'paged' => true,
'feed' => true,
'forcomments' => false,
'walk_dirs' => true,
'endpoints' => true,
);
$args = array_intersect_key( $args, $defaults );
$args = wp_parse_args( $args, $defaults );
if ( $args['with_front'] ) {
$struct = $this->front . $struct;
} else {
$struct = $this->root . $struct;
}
$args['struct'] = $struct;
$this->extra_permastructs[ $name ] = $args;
}
/**
* Removes a permalink structure.
*
* @since 4.5.0
*
* @param string $name Name for permalink structure.
*/
public function remove_permastruct( $name ) {
unset( $this->extra_permastructs[ $name ] );
}
/**
* Removes rewrite rules and then recreate rewrite rules.
*
* Calls WP_Rewrite::wp_rewrite_rules() after removing the 'rewrite_rules' option.
* If the function named 'save_mod_rewrite_rules' exists, it will be called.
*
* @since 2.0.1
*
* @param bool $hard Whether to update .htaccess (hard flush) or just update rewrite_rules option (soft flush). Default is true (hard).
*/
public function flush_rules( $hard = true ) {
static $do_hard_later = null;
// Prevent this action from running before everyone has registered their rewrites.
if ( ! did_action( 'wp_loaded' ) ) {
add_action( 'wp_loaded', array( $this, 'flush_rules' ) );
$do_hard_later = ( isset( $do_hard_later ) ) ? $do_hard_later || $hard : $hard;
return;
}
if ( isset( $do_hard_later ) ) {
$hard = $do_hard_later;
unset( $do_hard_later );
}
$this->refresh_rewrite_rules();
/**
* Filters whether a "hard" rewrite rule flush should be performed when requested.
*
* A "hard" flush updates .htaccess (Apache) or web.config (IIS).
*
* @since 3.7.0
*
* @param bool $hard Whether to flush rewrite rules "hard". Default true.
*/
if ( ! $hard || ! apply_filters( 'flush_rewrite_rules_hard', true ) ) {
return;
}
if ( function_exists( 'save_mod_rewrite_rules' ) ) {
save_mod_rewrite_rules();
}
if ( function_exists( 'iis7_save_url_rewrite_rules' ) ) {
iis7_save_url_rewrite_rules();
}
}
/**
* Sets up the object's properties.
*
* The 'use_verbose_page_rules' object property will be set to true if the
* permalink structure begins with one of the following: '%postname%', '%category%',
* '%tag%', or '%author%'.
*
* @since 1.5.0
*/
public function init() {
$this->extra_rules = array();
$this->non_wp_rules = array();
$this->endpoints = array();
$this->permalink_structure = get_option( 'permalink_structure' );
$this->front = substr( $this->permalink_structure, 0, strpos( $this->permalink_structure, '%' ) );
$this->root = '';
if ( $this->using_index_permalinks() ) {
$this->root = $this->index . '/';
}
unset( $this->author_structure );
unset( $this->date_structure );
unset( $this->page_structure );
unset( $this->search_structure );
unset( $this->feed_structure );
unset( $this->comment_feed_structure );
$this->use_trailing_slashes = str_ends_with( $this->permalink_structure, '/' );
// Enable generic rules for pages if permalink structure doesn't begin with a wildcard.
if ( preg_match( '/^[^%]*%(?:postname|category|tag|author)%/', $this->permalink_structure ) ) {
$this->use_verbose_page_rules = true;
} else {
$this->use_verbose_page_rules = false;
}
}
/**
* Sets the main permalink structure for the site.
*
* Will update the 'permalink_structure' option, if there is a difference
* between the current permalink structure and the parameter value. Calls
* WP_Rewrite::init() after the option is updated.
*
* Fires the {@see 'permalink_structure_changed'} action once the init call has
* processed passing the old and new values
*
* @since 1.5.0
*
* @param string $permalink_structure Permalink structure.
*/
public function set_permalink_structure( $permalink_structure ) {
if ( $this->permalink_structure !== $permalink_structure ) {
$old_permalink_structure = $this->permalink_structure;
update_option( 'permalink_structure', $permalink_structure );
$this->init();
/**
* Fires after the permalink structure is updated.
*
* @since 2.8.0
*
* @param string $old_permalink_structure The previous permalink structure.
* @param string $permalink_structure The new permalink structure.
*/
do_action( 'permalink_structure_changed', $old_permalink_structure, $permalink_structure );
}
}
/**
* Sets the category base for the category permalink.
*
* Will update the 'category_base' option, if there is a difference between
* the current category base and the parameter value. Calls WP_Rewrite::init()
* after the option is updated.
*
* @since 1.5.0
*
* @param string $category_base Category permalink structure base.
*/
public function set_category_base( $category_base ) {
if ( get_option( 'category_base' ) !== $category_base ) {
update_option( 'category_base', $category_base );
$this->init();
}
}
/**
* Sets the tag base for the tag permalink.
*
* Will update the 'tag_base' option, if there is a difference between the
* current tag base and the parameter value. Calls WP_Rewrite::init() after
* the option is updated.
*
* @since 2.3.0
*
* @param string $tag_base Tag permalink structure base.
*/
public function set_tag_base( $tag_base ) {
if ( get_option( 'tag_base' ) !== $tag_base ) {
update_option( 'tag_base', $tag_base );
$this->init();
}
}
/**
* Constructor - Calls init(), which runs setup.
*
* @since 1.5.0
*/
public function __construct() {
$this->init();
}
}