WordPress/wp-includes/default-filters.php
Jeremy Felt 2dce718157 REST API: Move object type-specific metadata integrations from the wrapper functions to the low-level Meta API functions.
Object type-specific actions that should happen before or after modification of metadata have so far been part of the respective wrapper functions. By using action and filter hooks, this changeset ensures they are always executed, even when calling the lower-level Meta API functions directly, which the REST API does as a prime example.

Merges [43729] to trunk.

Props flixos90, spacedmonkey.
Fixes #44467.

Built from https://develop.svn.wordpress.org/trunk@43982


git-svn-id: http://core.svn.wordpress.org/trunk@43814 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2018-12-12 03:02:24 +00:00

588 lines
25 KiB
PHP

<?php
/**
* Sets up the default filters and actions for most
* of the WordPress hooks.
*
* If you need to remove a default hook, this file will
* give you the priority for which to use to remove the
* hook.
*
* Not all of the default hooks are found in default-filters.php
*
* @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, 'esc_url_raw' );
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_whitelist', 10, 2 );
// 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' );
// 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 );
}
// Add proper rel values for links with target.
foreach ( array(
'title_save_pre',
'content_save_pre',
'excerpt_save_pre',
'content_filtered_save_pre',
'pre_comment_content',
'pre_term_description',
'pre_link_description',
'pre_link_notes',
'pre_user_description',
) as $filter ) {
add_filter( $filter, 'wp_targeted_link_rel' );
};
// Format strings for display.
foreach ( array( 'comment_author', 'term_name', 'link_name', 'link_description', 'link_notes', 'bloginfo', 'wp_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' ) 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', '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_make_content_images_responsive' );
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( 'get_the_excerpt', 'wp_trim_excerpt' );
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', 'do_shortcode', 11 ); // Runs after wpautop(); note that $post global will be null when shortcodes run.
add_filter( 'date_i18n', 'wp_maybe_decline_date' );
// 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' );
// Mark site as no longer fresh
foreach ( array( 'publish_post', 'publish_page', 'wp_ajax_save-widget', 'wp_ajax_widgets-order', 'customize_save_after' ) as $action ) {
add_action( $action, '_delete_option_fresh_site', 0 );
}
// Misc filters
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( '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_nofollow', 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( 'nav_menu_meta_box_object', '_wp_nav_menu_meta_box_object' );
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_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', 'feed_links', 2 );
add_action( 'wp_head', 'feed_links_extra', 3 );
add_action( 'wp_head', 'rsd_link' );
add_action( 'wp_head', 'wlwmanifest_link' );
add_action( 'wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0 );
add_action( 'wp_head', 'locale_stylesheet' );
add_action( 'publish_future_post', 'check_and_publish_future_post', 10, 1 );
add_action( 'wp_head', 'noindex', 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', 'check_theme_switched', 99 );
add_action( 'after_switch_theme', '_wp_menus_changed' );
add_action( 'after_switch_theme', '_wp_sidebars_changed' );
add_action( 'wp_print_styles', 'print_emoji_styles' );
if ( isset( $_GET['replytocom'] ) ) {
add_action( 'wp_head', 'wp_no_robots' );
}
// Login actions
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' );
}
// 2 Actions 2 Furious
add_action( 'do_feed_rdf', 'do_feed_rdf', 10, 1 );
add_action( 'do_feed_rss', 'do_feed_rss', 10, 1 );
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, 1 );
add_action( 'do_robots', 'do_robots' );
add_action( 'set_comment_cookies', 'wp_set_comment_cookies', 10, 3 );
add_action( 'sanitize_comment_cookies', 'sanitize_comment_cookies' );
add_action( 'admin_print_scripts', 'print_emoji_detection_script' );
add_action( 'admin_print_scripts', 'print_head_scripts', 20 );
add_action( 'admin_print_footer_scripts', '_wp_footer_scripts' );
add_action( 'admin_print_styles', 'print_emoji_styles' );
add_action( 'admin_print_styles', 'print_admin_styles', 20 );
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( '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' );
add_action( 'admin_init', 'send_frame_options_header', 10, 0 );
add_action( 'welcome_panel', 'wp_welcome_panel' );
// 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 CSS class 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' );
// 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' );
// Admin Color Schemes
add_action( 'admin_init', 'register_admin_color_schemes', 1 );
add_action( 'admin_color_scheme_picker', 'admin_color_scheme_picker' );
// 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_spam_check', 99 );
add_filter( 'determine_current_user', 'wp_validate_auth_cookie' );
add_filter( 'determine_current_user', 'wp_validate_logged_in_cookie', 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' );
// 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' );
/**
* Filters formerly mixed into wp-includes
*/
// Theme
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 );
// 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_enqueue_scripts', 'wp_localize_jquery_ui_datepicker', 1000 );
add_action( 'admin_enqueue_scripts', 'wp_localize_jquery_ui_datepicker', 1000 );
add_action( 'admin_print_scripts-index.php', 'wp_localize_community_events' );
add_filter( 'wp_print_scripts', 'wp_just_in_time_script_localization' );
add_filter( 'print_scripts_array', 'wp_prototype_before_jquery' );
add_filter( 'customize_controls_print_styles', 'wp_resource_hints', 1 );
add_action( 'wp_default_styles', 'wp_default_styles' );
add_filter( 'style_loader_src', 'wp_style_loader_src', 10, 2 );
// 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 );
// Shortcodes
add_filter( 'the_content', 'do_shortcode', 11 ); // AFTER wpautop()
// Media
add_action( 'wp_playlist_scripts', 'wp_playlist_scripts' );
add_action( 'customize_controls_enqueue_scripts', 'wp_plupload_default_settings' );
// Nav menu
add_filter( 'nav_menu_item_id', '_nav_menu_item_id_use_once', 10, 2 );
// Widgets
add_action( 'init', 'wp_widgets_init', 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( 'before_signup_header', '_wp_admin_bar_init' );
add_action( 'activate_header', '_wp_admin_bar_init' );
add_action( 'wp_footer', 'wp_admin_bar_render', 1000 );
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' );
add_action( 'embed_head', 'enqueue_embed_scripts', 1 );
add_action( 'embed_head', 'print_emoji_detection_script' );
add_action( 'embed_head', 'print_embed_styles' );
add_action( 'embed_head', 'wp_print_head_scripts', 20 );
add_action( 'embed_head', 'wp_print_styles', 20 );
add_action( 'embed_head', 'wp_no_robots' );
add_action( 'embed_head', 'rel_canonical' );
add_action( 'embed_head', 'locale_stylesheet', 30 );
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_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 );
unset( $filter, $action );