WordPress 4.7
[autoinstalls/wordpress.git] / wp-includes / default-filters.php
1 <?php
2 /**
3  * Sets up the default filters and actions for most
4  * of the WordPress hooks.
5  *
6  * If you need to remove a default hook, this file will
7  * give you the priority for which to use to remove the
8  * hook.
9  *
10  * Not all of the default hooks are found in default-filters.php
11  *
12  * @package WordPress
13  */
14
15 // Strip, trim, kses, special chars for string saves
16 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 ) {
17         add_filter( $filter, 'sanitize_text_field'  );
18         add_filter( $filter, 'wp_filter_kses'       );
19         add_filter( $filter, '_wp_specialchars', 30 );
20 }
21
22 // Strip, kses, special chars for string display
23 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 ) {
24         if ( is_admin() ) {
25                 // These are expensive. Run only on admin pages for defense in depth.
26                 add_filter( $filter, 'sanitize_text_field'  );
27                 add_filter( $filter, 'wp_kses_data'       );
28         }
29         add_filter( $filter, '_wp_specialchars', 30 );
30 }
31
32 // Kses only for textarea saves
33 foreach ( array( 'pre_term_description', 'pre_link_description', 'pre_link_notes', 'pre_user_description' ) as $filter ) {
34         add_filter( $filter, 'wp_filter_kses' );
35 }
36
37 // Kses only for textarea admin displays
38 if ( is_admin() ) {
39         foreach ( array( 'term_description', 'link_description', 'link_notes', 'user_description' ) as $filter ) {
40                 add_filter( $filter, 'wp_kses_data' );
41         }
42         add_filter( 'comment_text', 'wp_kses_post' );
43 }
44
45 // Email saves
46 foreach ( array( 'pre_comment_author_email', 'pre_user_email' ) as $filter ) {
47         add_filter( $filter, 'trim'           );
48         add_filter( $filter, 'sanitize_email' );
49         add_filter( $filter, 'wp_filter_kses' );
50 }
51
52 // Email admin display
53 foreach ( array( 'comment_author_email', 'user_email' ) as $filter ) {
54         add_filter( $filter, 'sanitize_email' );
55         if ( is_admin() )
56                 add_filter( $filter, 'wp_kses_data' );
57 }
58
59 // Save URL
60 foreach ( array( 'pre_comment_author_url', 'pre_user_url', 'pre_link_url', 'pre_link_image',
61         'pre_link_rss', 'pre_post_guid' ) as $filter ) {
62         add_filter( $filter, 'wp_strip_all_tags' );
63         add_filter( $filter, 'esc_url_raw'       );
64         add_filter( $filter, 'wp_filter_kses'    );
65 }
66
67 // Display URL
68 foreach ( array( 'user_url', 'link_url', 'link_image', 'link_rss', 'comment_url', 'post_guid' ) as $filter ) {
69         if ( is_admin() )
70                 add_filter( $filter, 'wp_strip_all_tags' );
71         add_filter( $filter, 'esc_url'           );
72         if ( is_admin() )
73                 add_filter( $filter, 'wp_kses_data'    );
74 }
75
76 // Slugs
77 add_filter( 'pre_term_slug', 'sanitize_title' );
78 add_filter( 'wp_insert_post_data', '_wp_customize_changeset_filter_insert_post_data', 10, 2 );
79
80 // Keys
81 foreach ( array( 'pre_post_type', 'pre_post_status', 'pre_post_comment_status', 'pre_post_ping_status' ) as $filter ) {
82         add_filter( $filter, 'sanitize_key' );
83 }
84
85 // Mime types
86 add_filter( 'pre_post_mime_type', 'sanitize_mime_type' );
87 add_filter( 'post_mime_type', 'sanitize_mime_type' );
88
89 // Meta
90 add_filter( 'register_meta_args', '_wp_register_meta_args_whitelist', 10, 2 );
91
92 // Places to balance tags on input
93 foreach ( array( 'content_save_pre', 'excerpt_save_pre', 'comment_save_pre', 'pre_comment_content' ) as $filter ) {
94         add_filter( $filter, 'convert_invalid_entities' );
95         add_filter( $filter, 'balanceTags', 50 );
96 }
97
98 // Format strings for display.
99 foreach ( array( 'comment_author', 'term_name', 'link_name', 'link_description', 'link_notes', 'bloginfo', 'wp_title', 'widget_title' ) as $filter ) {
100         add_filter( $filter, 'wptexturize'   );
101         add_filter( $filter, 'convert_chars' );
102         add_filter( $filter, 'esc_html'      );
103 }
104
105 // Format WordPress
106 foreach ( array( 'the_content', 'the_title', 'wp_title' ) as $filter )
107         add_filter( $filter, 'capital_P_dangit', 11 );
108 add_filter( 'comment_text', 'capital_P_dangit', 31 );
109
110 // Format titles
111 foreach ( array( 'single_post_title', 'single_cat_title', 'single_tag_title', 'single_month_title', 'nav_menu_attr_title', 'nav_menu_description' ) as $filter ) {
112         add_filter( $filter, 'wptexturize' );
113         add_filter( $filter, 'strip_tags'  );
114 }
115
116 // Format text area for display.
117 foreach ( array( 'term_description' ) as $filter ) {
118         add_filter( $filter, 'wptexturize'      );
119         add_filter( $filter, 'convert_chars'    );
120         add_filter( $filter, 'wpautop'          );
121         add_filter( $filter, 'shortcode_unautop');
122 }
123
124 // Format for RSS
125 add_filter( 'term_name_rss', 'convert_chars' );
126
127 // Pre save hierarchy
128 add_filter( 'wp_insert_post_parent', 'wp_check_post_hierarchy_for_loops', 10, 2 );
129 add_filter( 'wp_update_term_parent', 'wp_check_term_hierarchy_for_loops', 10, 3 );
130
131 // Display filters
132 add_filter( 'the_title', 'wptexturize'   );
133 add_filter( 'the_title', 'convert_chars' );
134 add_filter( 'the_title', 'trim'          );
135
136 add_filter( 'the_content', 'wptexturize'                       );
137 add_filter( 'the_content', 'convert_smilies',               20 );
138 add_filter( 'the_content', 'wpautop'                           );
139 add_filter( 'the_content', 'shortcode_unautop'                 );
140 add_filter( 'the_content', 'prepend_attachment'                );
141 add_filter( 'the_content', 'wp_make_content_images_responsive' );
142
143 add_filter( 'the_excerpt',     'wptexturize'      );
144 add_filter( 'the_excerpt',     'convert_smilies'  );
145 add_filter( 'the_excerpt',     'convert_chars'    );
146 add_filter( 'the_excerpt',     'wpautop'          );
147 add_filter( 'the_excerpt',     'shortcode_unautop');
148 add_filter( 'get_the_excerpt', 'wp_trim_excerpt'  );
149
150 add_filter( 'the_post_thumbnail_caption', 'wptexturize'     );
151 add_filter( 'the_post_thumbnail_caption', 'convert_smilies' );
152 add_filter( 'the_post_thumbnail_caption', 'convert_chars'   );
153
154 add_filter( 'comment_text', 'wptexturize'            );
155 add_filter( 'comment_text', 'convert_chars'          );
156 add_filter( 'comment_text', 'make_clickable',      9 );
157 add_filter( 'comment_text', 'force_balance_tags', 25 );
158 add_filter( 'comment_text', 'convert_smilies',    20 );
159 add_filter( 'comment_text', 'wpautop',            30 );
160
161 add_filter( 'comment_excerpt', 'convert_chars' );
162
163 add_filter( 'list_cats',         'wptexturize' );
164
165 add_filter( 'wp_sprintf', 'wp_sprintf_l', 10, 2 );
166
167 add_filter( 'widget_text', 'balanceTags' );
168
169 add_filter( 'date_i18n', 'wp_maybe_decline_date' );
170
171 // RSS filters
172 add_filter( 'the_title_rss',      'strip_tags'                    );
173 add_filter( 'the_title_rss',      'ent2ncr',                    8 );
174 add_filter( 'the_title_rss',      'esc_html'                      );
175 add_filter( 'the_content_rss',    'ent2ncr',                    8 );
176 add_filter( 'the_content_feed',   'wp_staticize_emoji'            );
177 add_filter( 'the_content_feed',   '_oembed_filter_feed_content'   );
178 add_filter( 'the_excerpt_rss',    'convert_chars'                 );
179 add_filter( 'the_excerpt_rss',    'ent2ncr',                    8 );
180 add_filter( 'comment_author_rss', 'ent2ncr',                    8 );
181 add_filter( 'comment_text_rss',   'ent2ncr',                    8 );
182 add_filter( 'comment_text_rss',   'esc_html'                      );
183 add_filter( 'comment_text_rss',   'wp_staticize_emoji'            );
184 add_filter( 'bloginfo_rss',       'ent2ncr',                    8 );
185 add_filter( 'the_author',         'ent2ncr',                    8 );
186 add_filter( 'the_guid',           'esc_url'                       );
187
188 // Email filters
189 add_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
190
191 // Mark site as no longer fresh
192 foreach ( array( 'publish_post', 'publish_page', 'wp_ajax_save-widget', 'wp_ajax_widgets-order', 'customize_save_after' ) as $action ) {
193         add_action( $action, '_delete_option_fresh_site' );
194 }
195
196 // Misc filters
197 add_filter( 'option_ping_sites',        'privacy_ping_filter'                 );
198 add_filter( 'option_blog_charset',      '_wp_specialchars'                    ); // IMPORTANT: This must not be wp_specialchars() or esc_html() or it'll cause an infinite loop
199 add_filter( 'option_blog_charset',      '_canonical_charset'                  );
200 add_filter( 'option_home',              '_config_wp_home'                     );
201 add_filter( 'option_siteurl',           '_config_wp_siteurl'                  );
202 add_filter( 'tiny_mce_before_init',     '_mce_set_direction'                  );
203 add_filter( 'teeny_mce_before_init',    '_mce_set_direction'                  );
204 add_filter( 'pre_kses',                 'wp_pre_kses_less_than'               );
205 add_filter( 'sanitize_title',           'sanitize_title_with_dashes',   10, 3 );
206 add_action( 'check_comment_flood',      'check_comment_flood_db',       10, 4 );
207 add_filter( 'comment_flood_filter',     'wp_throttle_comment_flood',    10, 3 );
208 add_filter( 'pre_comment_content',      'wp_rel_nofollow',              15    );
209 add_filter( 'comment_email',            'antispambot'                         );
210 add_filter( 'option_tag_base',          '_wp_filter_taxonomy_base'            );
211 add_filter( 'option_category_base',     '_wp_filter_taxonomy_base'            );
212 add_filter( 'the_posts',                '_close_comments_for_old_posts', 10, 2);
213 add_filter( 'comments_open',            '_close_comments_for_old_post', 10, 2 );
214 add_filter( 'pings_open',               '_close_comments_for_old_post', 10, 2 );
215 add_filter( 'editable_slug',            'urldecode'                           );
216 add_filter( 'editable_slug',            'esc_textarea'                        );
217 add_filter( 'nav_menu_meta_box_object', '_wp_nav_menu_meta_box_object'        );
218 add_filter( 'pingback_ping_source_uri', 'pingback_ping_source_uri'            );
219 add_filter( 'xmlrpc_pingback_error',    'xmlrpc_pingback_error'               );
220 add_filter( 'title_save_pre',           'trim'                                );
221
222 add_action( 'transition_comment_status', '_clear_modified_cache_on_transition_comment_status', 10, 2 );
223
224 add_filter( 'http_request_host_is_external',    'allowed_http_request_hosts', 10, 2 );
225
226 // REST API filters.
227 add_action( 'xmlrpc_rsd_apis',            'rest_output_rsd' );
228 add_action( 'wp_head',                    'rest_output_link_wp_head', 10, 0 );
229 add_action( 'template_redirect',          'rest_output_link_header', 11, 0 );
230 add_action( 'auth_cookie_malformed',      'rest_cookie_collect_status' );
231 add_action( 'auth_cookie_expired',        'rest_cookie_collect_status' );
232 add_action( 'auth_cookie_bad_username',   'rest_cookie_collect_status' );
233 add_action( 'auth_cookie_bad_hash',       'rest_cookie_collect_status' );
234 add_action( 'auth_cookie_valid',          'rest_cookie_collect_status' );
235 add_filter( 'rest_authentication_errors', 'rest_cookie_check_errors', 100 );
236
237 // Actions
238 add_action( 'wp_head',             '_wp_render_title_tag',            1     );
239 add_action( 'wp_head',             'wp_enqueue_scripts',              1     );
240 add_action( 'wp_head',             'wp_resource_hints',               2     );
241 add_action( 'wp_head',             'feed_links',                      2     );
242 add_action( 'wp_head',             'feed_links_extra',                3     );
243 add_action( 'wp_head',             'rsd_link'                               );
244 add_action( 'wp_head',             'wlwmanifest_link'                       );
245 add_action( 'wp_head',             'adjacent_posts_rel_link_wp_head', 10, 0 );
246 add_action( 'wp_head',             'locale_stylesheet'                      );
247 add_action( 'publish_future_post', 'check_and_publish_future_post',   10, 1 );
248 add_action( 'wp_head',             'noindex',                          1    );
249 add_action( 'wp_head',             'print_emoji_detection_script',     7    );
250 add_action( 'wp_head',             'wp_print_styles',                  8    );
251 add_action( 'wp_head',             'wp_print_head_scripts',            9    );
252 add_action( 'wp_head',             'wp_generator'                           );
253 add_action( 'wp_head',             'rel_canonical'                          );
254 add_action( 'wp_head',             'wp_shortlink_wp_head',            10, 0 );
255 add_action( 'wp_head',             'wp_custom_css_cb',                11    );
256 add_action( 'wp_head',             'wp_site_icon',                    99    );
257 add_action( 'wp_footer',           'wp_print_footer_scripts',         20    );
258 add_action( 'template_redirect',   'wp_shortlink_header',             11, 0 );
259 add_action( 'wp_print_footer_scripts', '_wp_footer_scripts'                 );
260 add_action( 'init',                'check_theme_switched',            99    );
261 add_action( 'after_switch_theme',  '_wp_sidebars_changed'                   );
262 add_action( 'wp_print_styles',     'print_emoji_styles'                     );
263
264 if ( isset( $_GET['replytocom'] ) )
265     add_action( 'wp_head', 'wp_no_robots' );
266
267 // Login actions
268 add_filter( 'login_head',          'wp_resource_hints',             8     );
269 add_action( 'login_head',          'wp_print_head_scripts',         9     );
270 add_action( 'login_head',          'print_admin_styles',            9     );
271 add_action( 'login_head',          'wp_site_icon',                  99    );
272 add_action( 'login_footer',        'wp_print_footer_scripts',       20    );
273 add_action( 'login_init',          'send_frame_options_header',     10, 0 );
274
275 // Feed Generator Tags
276 foreach ( array( 'rss2_head', 'commentsrss2_head', 'rss_head', 'rdf_header', 'atom_head', 'comments_atom_head', 'opml_head', 'app_head' ) as $action ) {
277         add_action( $action, 'the_generator' );
278 }
279
280 // Feed Site Icon
281 add_action( 'atom_head', 'atom_site_icon' );
282 add_action( 'rss2_head', 'rss2_site_icon' );
283
284
285 // WP Cron
286 if ( !defined( 'DOING_CRON' ) )
287         add_action( 'init', 'wp_cron' );
288
289 // 2 Actions 2 Furious
290 add_action( 'do_feed_rdf',                'do_feed_rdf',                             10, 1 );
291 add_action( 'do_feed_rss',                'do_feed_rss',                             10, 1 );
292 add_action( 'do_feed_rss2',               'do_feed_rss2',                            10, 1 );
293 add_action( 'do_feed_atom',               'do_feed_atom',                            10, 1 );
294 add_action( 'do_pings',                   'do_all_pings',                            10, 1 );
295 add_action( 'do_robots',                  'do_robots'                                      );
296 add_action( 'set_comment_cookies',        'wp_set_comment_cookies',                  10, 2 );
297 add_action( 'sanitize_comment_cookies',   'sanitize_comment_cookies'                       );
298 add_action( 'admin_print_scripts',        'print_emoji_detection_script'                   );
299 add_action( 'admin_print_scripts',        'print_head_scripts',                      20    );
300 add_action( 'admin_print_footer_scripts', '_wp_footer_scripts'                             );
301 add_action( 'admin_print_styles',         'print_emoji_styles'                             );
302 add_action( 'admin_print_styles',         'print_admin_styles',                      20    );
303 add_action( 'init',                       'smilies_init',                             5    );
304 add_action( 'plugins_loaded',             'wp_maybe_load_widgets',                    0    );
305 add_action( 'plugins_loaded',             'wp_maybe_load_embeds',                     0    );
306 add_action( 'shutdown',                   'wp_ob_end_flush_all',                      1    );
307 // Create a revision whenever a post is updated.
308 add_action( 'post_updated',               'wp_save_post_revision',                   10, 1 );
309 add_action( 'publish_post',               '_publish_post_hook',                       5, 1 );
310 add_action( 'transition_post_status',     '_transition_post_status',                  5, 3 );
311 add_action( 'transition_post_status',     '_update_term_count_on_transition_post_status', 10, 3 );
312 add_action( 'comment_form',               'wp_comment_form_unfiltered_html_nonce'          );
313 add_action( 'wp_scheduled_delete',        'wp_scheduled_delete'                            );
314 add_action( 'wp_scheduled_auto_draft_delete', 'wp_delete_auto_drafts'                      );
315 add_action( 'admin_init',                 'send_frame_options_header',               10, 0 );
316 add_action( 'importer_scheduled_cleanup', 'wp_delete_attachment'                           );
317 add_action( 'upgrader_scheduled_cleanup', 'wp_delete_attachment'                           );
318 add_action( 'welcome_panel',              'wp_welcome_panel'                               );
319
320 // Navigation menu actions
321 add_action( 'delete_post',                '_wp_delete_post_menu_item'         );
322 add_action( 'delete_term',                '_wp_delete_tax_menu_item',   10, 3 );
323 add_action( 'transition_post_status',     '_wp_auto_add_pages_to_menu', 10, 3 );
324
325 // Post Thumbnail CSS class filtering
326 add_action( 'begin_fetch_post_thumbnail_html', '_wp_post_thumbnail_class_filter_add'    );
327 add_action( 'end_fetch_post_thumbnail_html',   '_wp_post_thumbnail_class_filter_remove' );
328
329 // Redirect Old Slugs
330 add_action( 'template_redirect',  'wp_old_slug_redirect'              );
331 add_action( 'post_updated',       'wp_check_for_changed_slugs', 12, 3 );
332 add_action( 'attachment_updated', 'wp_check_for_changed_slugs', 12, 3 );
333
334 // Nonce check for Post Previews
335 add_action( 'init', '_show_post_preview' );
336
337 // Output JS to reset window.name for previews
338 add_action( 'wp_head', 'wp_post_preview_js', 1 );
339
340 // Timezone
341 add_filter( 'pre_option_gmt_offset','wp_timezone_override_offset' );
342
343 // Admin Color Schemes
344 add_action( 'admin_init', 'register_admin_color_schemes', 1);
345 add_action( 'admin_color_scheme_picker', 'admin_color_scheme_picker' );
346
347 // If the upgrade hasn't run yet, assume link manager is used.
348 add_filter( 'default_option_link_manager_enabled', '__return_true' );
349
350 // This option no longer exists; tell plugins we always support auto-embedding.
351 add_filter( 'default_option_embed_autourls', '__return_true' );
352
353 // Default settings for heartbeat
354 add_filter( 'heartbeat_settings', 'wp_heartbeat_settings' );
355
356 // Check if the user is logged out
357 add_action( 'admin_enqueue_scripts', 'wp_auth_check_load' );
358 add_filter( 'heartbeat_send',        'wp_auth_check' );
359 add_filter( 'heartbeat_nopriv_send', 'wp_auth_check' );
360
361 // Default authentication filters
362 add_filter( 'authenticate', 'wp_authenticate_username_password',  20, 3 );
363 add_filter( 'authenticate', 'wp_authenticate_email_password',     20, 3 );
364 add_filter( 'authenticate', 'wp_authenticate_spam_check',         99    );
365 add_filter( 'determine_current_user', 'wp_validate_auth_cookie'          );
366 add_filter( 'determine_current_user', 'wp_validate_logged_in_cookie', 20 );
367
368 // Split term updates.
369 add_action( 'admin_init',        '_wp_check_for_scheduled_split_terms' );
370 add_action( 'split_shared_term', '_wp_check_split_default_terms',  10, 4 );
371 add_action( 'split_shared_term', '_wp_check_split_terms_in_menus', 10, 4 );
372 add_action( 'split_shared_term', '_wp_check_split_nav_menu_terms', 10, 4 );
373 add_action( 'wp_split_shared_term_batch', '_wp_batch_split_terms' );
374
375 // Email notifications.
376 add_action( 'comment_post', 'wp_new_comment_notify_moderator' );
377 add_action( 'comment_post', 'wp_new_comment_notify_postauthor' );
378 add_action( 'after_password_reset', 'wp_password_change_notification' );
379 add_action( 'register_new_user',      'wp_send_new_user_notifications' );
380 add_action( 'edit_user_created_user', 'wp_send_new_user_notifications', 10, 2 );
381
382 // REST API actions.
383 add_action( 'init',          'rest_api_init' );
384 add_action( 'rest_api_init', 'rest_api_default_filters',   10, 1 );
385 add_action( 'rest_api_init', 'register_initial_settings',  10 );
386 add_action( 'rest_api_init', 'create_initial_rest_routes', 99 );
387 add_action( 'parse_request', 'rest_api_loaded' );
388
389 /**
390  * Filters formerly mixed into wp-includes
391  */
392 // Theme
393 add_action( 'wp_loaded', '_custom_header_background_just_in_time' );
394 add_action( 'wp_head', '_custom_logo_header_styles' );
395 add_action( 'plugins_loaded', '_wp_customize_include' );
396 add_action( 'transition_post_status', '_wp_customize_publish_changeset', 10, 3 );
397 add_action( 'admin_enqueue_scripts', '_wp_customize_loader_settings' );
398 add_action( 'delete_attachment', '_delete_attachment_theme_mod' );
399
400 // Calendar widget cache
401 add_action( 'save_post', 'delete_get_calendar_cache' );
402 add_action( 'delete_post', 'delete_get_calendar_cache' );
403 add_action( 'update_option_start_of_week', 'delete_get_calendar_cache' );
404 add_action( 'update_option_gmt_offset', 'delete_get_calendar_cache' );
405
406 // Author
407 add_action( 'transition_post_status', '__clear_multi_author_cache' );
408
409 // Post
410 add_action( 'init', 'create_initial_post_types', 0 ); // highest priority
411 add_action( 'admin_menu', '_add_post_type_submenus' );
412 add_action( 'before_delete_post', '_reset_front_page_settings_for_post' );
413 add_action( 'wp_trash_post',      '_reset_front_page_settings_for_post' );
414 add_action( 'change_locale', 'create_initial_post_types' );
415
416 // Post Formats
417 add_filter( 'request', '_post_format_request' );
418 add_filter( 'term_link', '_post_format_link', 10, 3 );
419 add_filter( 'get_post_format', '_post_format_get_term' );
420 add_filter( 'get_terms', '_post_format_get_terms', 10, 3 );
421 add_filter( 'wp_get_object_terms', '_post_format_wp_get_object_terms' );
422
423 // KSES
424 add_action( 'init', 'kses_init' );
425 add_action( 'set_current_user', 'kses_init' );
426
427 // Script Loader
428 add_action( 'wp_default_scripts', 'wp_default_scripts' );
429 add_action( 'wp_enqueue_scripts', 'wp_localize_jquery_ui_datepicker', 1000 );
430 add_action( 'admin_enqueue_scripts', 'wp_localize_jquery_ui_datepicker', 1000 );
431 add_filter( 'wp_print_scripts', 'wp_just_in_time_script_localization' );
432 add_filter( 'print_scripts_array', 'wp_prototype_before_jquery' );
433 add_filter( 'customize_controls_print_styles', 'wp_resource_hints', 1 );
434
435 add_action( 'wp_default_styles', 'wp_default_styles' );
436 add_filter( 'style_loader_src', 'wp_style_loader_src', 10, 2 );
437
438 // Taxonomy
439 add_action( 'init', 'create_initial_taxonomies', 0 ); // highest priority
440 add_action( 'change_locale', 'create_initial_taxonomies' );
441
442 // Canonical
443 add_action( 'template_redirect', 'redirect_canonical' );
444 add_action( 'template_redirect', 'wp_redirect_admin_locations', 1000 );
445
446 // Shortcodes
447 add_filter( 'the_content', 'do_shortcode', 11 ); // AFTER wpautop()
448
449 // Media
450 add_action( 'wp_playlist_scripts', 'wp_playlist_scripts' );
451 add_action( 'customize_controls_enqueue_scripts', 'wp_plupload_default_settings' );
452
453 // Nav menu
454 add_filter( 'nav_menu_item_id', '_nav_menu_item_id_use_once', 10, 2 );
455
456 // Widgets
457 add_action( 'init', 'wp_widgets_init', 1 );
458
459 // Admin Bar
460 // Don't remove. Wrong way to disable.
461 add_action( 'template_redirect', '_wp_admin_bar_init', 0 );
462 add_action( 'admin_init', '_wp_admin_bar_init' );
463 add_action( 'before_signup_header', '_wp_admin_bar_init' );
464 add_action( 'activate_header', '_wp_admin_bar_init' );
465 add_action( 'wp_footer', 'wp_admin_bar_render', 1000 );
466 add_action( 'in_admin_header', 'wp_admin_bar_render', 0 );
467
468 // Former admin filters that can also be hooked on the front end
469 add_action( 'media_buttons', 'media_buttons' );
470 add_filter( 'image_send_to_editor', 'image_add_caption', 20, 8 );
471 add_filter( 'media_send_to_editor', 'image_media_send_to_editor', 10, 3 );
472
473 // Embeds
474 add_action( 'rest_api_init',          'wp_oembed_register_route'              );
475 add_filter( 'rest_pre_serve_request', '_oembed_rest_pre_serve_request', 10, 4 );
476
477 add_action( 'wp_head',                'wp_oembed_add_discovery_links'         );
478 add_action( 'wp_head',                'wp_oembed_add_host_js'                 );
479
480 add_action( 'embed_head',             'enqueue_embed_scripts',           1    );
481 add_action( 'embed_head',             'print_emoji_detection_script'          );
482 add_action( 'embed_head',             'print_embed_styles'                    );
483 add_action( 'embed_head',             'wp_print_head_scripts',          20    );
484 add_action( 'embed_head',             'wp_print_styles',                20    );
485 add_action( 'embed_head',             'wp_no_robots'                          );
486 add_action( 'embed_head',             'rel_canonical'                         );
487 add_action( 'embed_head',             'locale_stylesheet',              30    );
488
489 add_action( 'embed_content_meta',     'print_embed_comments_button'           );
490 add_action( 'embed_content_meta',     'print_embed_sharing_button'            );
491
492 add_action( 'embed_footer',           'print_embed_sharing_dialog'            );
493 add_action( 'embed_footer',           'print_embed_scripts'                   );
494 add_action( 'embed_footer',           'wp_print_footer_scripts',        20    );
495
496 add_filter( 'excerpt_more',           'wp_embed_excerpt_more',          20    );
497 add_filter( 'the_excerpt_embed',      'wptexturize'                           );
498 add_filter( 'the_excerpt_embed',      'convert_chars'                         );
499 add_filter( 'the_excerpt_embed',      'wpautop'                               );
500 add_filter( 'the_excerpt_embed',      'shortcode_unautop'                     );
501 add_filter( 'the_excerpt_embed',      'wp_embed_excerpt_attachment'           );
502
503 add_filter( 'oembed_dataparse',       'wp_filter_oembed_result',        10, 3 );
504 add_filter( 'oembed_response_data',   'get_oembed_response_data_rich',  10, 4 );
505 add_filter( 'pre_oembed_result',      'wp_filter_pre_oembed_result',    10, 3 );
506
507 unset( $filter, $action );