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default-filters.php
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<?php /** * 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 */ // Don't load directly. if ( ! defined( 'ABSPATH' ) ) { die( '-1' ); } // 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', 'apply_block_hooks_to_content_from_post_object', 8 ); // BEFORE do_blocks(). 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_speculation_rules' ); 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 ( // Comment reply link. isset( $_GET['replytocom'] ) || // Unapproved comment preview. ( isset( $_GET['unapproved'] ) && isset( $_GET['moderation-hash'] ) ) ) { 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 ); add_action( 'login_init', 'wp_admin_headers' ); // 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 ); // Site preview for Classic Theme. add_action( 'init', 'wp_initialize_site_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_classic_theme_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' ); // 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 <head>. 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 some post types. add_filter( 'rest_pre_insert_page', 'update_ignored_hooked_blocks_postmeta' ); add_filter( 'rest_pre_insert_post', 'update_ignored_hooked_blocks_postmeta' ); add_filter( 'rest_pre_insert_wp_block', 'update_ignored_hooked_blocks_postmeta' ); add_filter( 'rest_pre_insert_wp_navigation', 'update_ignored_hooked_blocks_postmeta' ); // Inject hooked blocks into the Posts endpoint REST response for some given post types. add_filter( 'rest_prepare_page', 'insert_hooked_blocks_into_rest_response', 10, 2 ); add_filter( 'rest_prepare_post', 'insert_hooked_blocks_into_rest_response', 10, 2 ); add_filter( 'rest_prepare_wp_block', 'insert_hooked_blocks_into_rest_response', 10, 2 ); add_filter( 'rest_prepare_wp_navigation', 'insert_hooked_blocks_into_rest_response', 10, 2 ); unset( $filter, $action );