gutenberg / lib / rest-api.php

rest-api.php in Gutenberg 9.2.2, at lib/rest-api.php

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1	<?php
2	/**
3	* PHP and WordPress configuration compatibility functions for the Gutenberg
4	* editor plugin changes related to REST API.
5	*
6	* @package gutenberg
7	*/
8
9	if ( ! defined( 'ABSPATH' ) ) {
10	die( 'Silence is golden.' );
11	}
12
13	/**
14	* Handle a failing oEmbed proxy request to try embedding as a shortcode.
15	*
16	* @see https://core.trac.wordpress.org/ticket/45447
17	*
18	* @since 2.3.0
19	*
20	* @param WP_HTTP_Response\|WP_Error $response The REST Request response.
21	* @param WP_REST_Server $handler ResponseHandler instance (usually WP_REST_Server).
22	* @param WP_REST_Request $request Request used to generate the response.
23	* @return WP_HTTP_Response\|object\|WP_Error The REST Request response.
24	*/
25	function gutenberg_filter_oembed_result( $response, $handler, $request ) {
26	if ( ! is_wp_error( $response ) \|\| 'oembed_invalid_url' !== $response->get_error_code() \|\|
27	'/oembed/1.0/proxy' !== $request->get_route() ) {
28	return $response;
29	}
30
31	// Try using a classic embed instead.
32	global $wp_embed;
33	$html = $wp_embed->shortcode( array(), $_GET['url'] );
34	if ( ! $html ) {
35	return $response;
36	}
37
38	global $wp_scripts;
39
40	// Check if any scripts were enqueued by the shortcode, and include them in
41	// the response.
42	$enqueued_scripts = array();
43	foreach ( $wp_scripts->queue as $script ) {
44	$enqueued_scripts[] = $wp_scripts->registered[ $script ]->src;
45	}
46
47	return array(
48	'provider_name' => __( 'Embed Handler', 'gutenberg' ),
49	'html' => $html,
50	'scripts' => $enqueued_scripts,
51	);
52	}
53	add_filter( 'rest_request_after_callbacks', 'gutenberg_filter_oembed_result', 10, 3 );
54
55	/**
56	* Add fields required for site editing to the /themes endpoint.
57	*
58	* @todo Remove once Gutenberg's minimum required WordPress version is v5.5.
59	* @see https://core.trac.wordpress.org/ticket/49906
60	* @see https://core.trac.wordpress.org/changeset/47921
61	*
62	* @param WP_REST_Response $response The response object.
63	* @param WP_Theme $theme Theme object used to create response.
64	* @param WP_REST_Request $request Request object.
65	*/
66	function gutenberg_filter_rest_prepare_theme( $response, $theme, $request ) {
67	$data = $response->get_data();
68	$fields = array_keys( $data );
69
70	/**
71	* The following is basically copied from Core's WP_REST_Themes_Controller::prepare_item_for_response()
72	* (as of WP v5.5), with `rest_is_field_included()` replaced by `! in_array()`.
73	* This makes sure that we add all the fields that are missing from Core.
74	*
75	* @see https://github.com/WordPress/WordPress/blob/019bc2d244c4d536338d2c634419583e928143df/wp-includes/rest-api/endpoints/class-wp-rest-themes-controller.php#L118-L167
76	*/
77	if ( ! in_array( 'stylesheet', $fields, true ) ) {
78	$data['stylesheet'] = $theme->get_stylesheet();
79	}
80
81	if ( ! in_array( 'template', $fields, true ) ) {
82	/**
83	* Use the get_template() method, not the 'Template' header, for finding the template.
84	* The 'Template' header is only good for what was written in the style.css, while
85	* get_template() takes into account where WordPress actually located the theme and
86	* whether it is actually valid.
87	*/
88	$data['template'] = $theme->get_template();
89	}
90
91	$plain_field_mappings = array(
92	'requires_php' => 'RequiresPHP',
93	'requires_wp' => 'RequiresWP',
94	'textdomain' => 'TextDomain',
95	'version' => 'Version',
96	);
97
98	foreach ( $plain_field_mappings as $field => $header ) {
99	if ( ! in_array( $field, $fields, true ) ) {
100	$data[ $field ] = $theme->get( $header );
101	}
102	}
103
104	if ( ! in_array( 'screenshot', $fields, true ) ) {
105	// Using $theme->get_screenshot() with no args to get absolute URL.
106	$data['screenshot'] = $theme->get_screenshot() ? $theme->get_screenshot() : '';
107	}
108
109	$rich_field_mappings = array(
110	'author' => 'Author',
111	'author_uri' => 'AuthorURI',
112	'description' => 'Description',
113	'name' => 'Name',
114	'tags' => 'Tags',
115	'theme_uri' => 'ThemeURI',
116	);
117
118	foreach ( $rich_field_mappings as $field => $header ) {
119	if ( ! in_array( $field, $fields, true ) ) {
120	$data[ $field ]['raw'] = $theme->display( $header, false, true );
121	$data[ $field ]['rendered'] = $theme->display( $header );
122	}
123	}
124
125	$response->set_data( $data );
126	return $response;
127	}
128	add_filter( 'rest_prepare_theme', 'gutenberg_filter_rest_prepare_theme', 10, 3 );
129
130	/**
131	* Registers the block directory.
132	*
133	* @since 6.5.0
134	*/
135	function gutenberg_register_rest_block_directory() {
136	$block_directory_controller = new WP_REST_Block_Directory_Controller();
137	$block_directory_controller->register_routes();
138	}
139	add_filter( 'rest_api_init', 'gutenberg_register_rest_block_directory' );
140
141	/**
142	* Registers the Block types REST API routes.
143	*/
144	function gutenberg_register_block_type() {
145	$block_types = new WP_REST_Block_Types_Controller();
146	$block_types->register_routes();
147	}
148	add_action( 'rest_api_init', 'gutenberg_register_block_type' );
149	/**
150	* Registers the menu locations area REST API routes.
151	*/
152	function gutenberg_register_rest_menu_location() {
153	$nav_menu_location = new WP_REST_Menu_Locations_Controller();
154	$nav_menu_location->register_routes();
155	}
156	add_action( 'rest_api_init', 'gutenberg_register_rest_menu_location' );
157
158	/**
159	* Registers the menu locations area REST API routes.
160	*/
161	function gutenberg_register_rest_customizer_nonces() {
162	$nav_menu_location = new WP_Rest_Customizer_Nonces();
163	$nav_menu_location->register_routes();
164	}
165	add_action( 'rest_api_init', 'gutenberg_register_rest_customizer_nonces' );
166
167
168	/**
169	* Registers the Plugins REST API routes.
170	*/
171	function gutenberg_register_plugins_endpoint() {
172	$plugins = new WP_REST_Plugins_Controller();
173	$plugins->register_routes();
174	}
175	add_action( 'rest_api_init', 'gutenberg_register_plugins_endpoint' );
176
177	/**
178	* Registers the Sidebars & Widgets REST API routes.
179	*/
180	function gutenberg_register_sidebars_and_widgets_endpoint() {
181	$sidebars = new WP_REST_Sidebars_Controller();
182	$sidebars->register_routes();
183
184	$widget_types = new WP_REST_Widget_Types_Controller();
185	$widget_types->register_routes();
186	$widgets = new WP_REST_Widgets_Controller();
187	$widgets->register_routes();
188	}
189	add_action( 'rest_api_init', 'gutenberg_register_sidebars_and_widgets_endpoint' );
190
191	/**
192	* Registers the Batch REST API routes.
193	*/
194	function gutenberg_register_batch_endpoint() {
195	$batch = new WP_REST_Batch_Controller();
196	$batch->register_routes();
197	}
198	add_action( 'rest_api_init', 'gutenberg_register_batch_endpoint' );
199
200	/**
201	* Hook in to the nav menu item post type and enable a post type rest endpoint.
202	*
203	* @param array $args Current registered post type args.
204	* @param string $post_type Name of post type.
205	*
206	* @return array
207	*/
208	function wp_api_nav_menus_post_type_args( $args, $post_type ) {
209	if ( 'nav_menu_item' === $post_type ) {
210	$args['show_in_rest'] = true;
211	$args['rest_base'] = 'menu-items';
212	$args['rest_controller_class'] = 'WP_REST_Menu_Items_Controller';
213	}
214
215	return $args;
216	}
217	add_filter( 'register_post_type_args', 'wp_api_nav_menus_post_type_args', 10, 2 );
218
219	/**
220	* Hook in to the nav_menu taxonomy and enable a taxonomy rest endpoint.
221	*
222	* @param array $args Current registered taxonomy args.
223	* @param string $taxonomy Name of taxonomy.
224	*
225	* @return array
226	*/
227	function wp_api_nav_menus_taxonomy_args( $args, $taxonomy ) {
228	if ( 'nav_menu' === $taxonomy ) {
229	$args['show_in_rest'] = true;
230	$args['rest_base'] = 'menus';
231	$args['rest_controller_class'] = 'WP_REST_Menus_Controller';
232	}
233
234	return $args;
235	}
236	add_filter( 'register_taxonomy_args', 'wp_api_nav_menus_taxonomy_args', 10, 2 );
237
238	/**
239	* Shim for get_sample_permalink() to add support for auto-draft status.
240	*
241	* This function filters the return from get_sample_permalink() and essentially
242	* re-runs the same logic minus the filters, but pretends a status of auto-save
243	* is actually publish in order to return the future permalink format.
244	*
245	* This is a temporary fix until we can patch get_sample_permalink()
246	*
247	* @see https://core.trac.wordpress.org/ticket/46266
248	*
249	* @param array $permalink Array containing the sample permalink with placeholder for the post name, and the post name.
250	* @param int $id ID of the post.
251	* @param string $title Title of the post.
252	* @param string $name Slug of the post.
253	* @param object $post WP_Post object.
254	*
255	* @return array Array containing the sample permalink with placeholder for the post name, and the post name.
256	*/
257	function gutenberg_auto_draft_get_sample_permalink( $permalink, $id, $title, $name, $post ) {
258	if ( 'auto-draft' !== $post->post_status ) {
259	return $permalink;
260	}
261	$ptype = get_post_type_object( $post->post_type );
262
263	$original_status = $post->post_status;
264	$original_date = $post->post_date;
265	$original_name = $post->post_name;
266
267	// Hack: get_permalink() would return ugly permalink for drafts, so we will fake that our post is published.
268	$post->post_status = 'publish';
269	$post->post_name = sanitize_title( $post->post_name ? $post->post_name : $post->post_title, $post->ID );
270
271	// If the user wants to set a new name -- override the current one.
272	// Note: if empty name is supplied -- use the title instead, see #6072.
273	if ( ! is_null( $name ) ) {
274	$post->post_name = sanitize_title( $name ? $name : $title, $post->ID );
275	}
276
277	$post->post_name = wp_unique_post_slug( $post->post_name, $post->ID, $post->post_status, $post->post_type, $post->post_parent );
278
279	$post->filter = 'sample';
280
281	$permalink = get_permalink( $post, true );
282
283	// Replace custom post_type Token with generic pagename token for ease of use.
284	$permalink = str_replace( "%$post->post_type%", '%pagename%', $permalink );
285
286	// Handle page hierarchy.
287	if ( $ptype->hierarchical ) {
288	$uri = get_page_uri( $post );
289	if ( $uri ) {
290	$uri = untrailingslashit( $uri );
291	$uri = strrev( stristr( strrev( $uri ), '/' ) );
292	$uri = untrailingslashit( $uri );
293	}
294
295	if ( ! empty( $uri ) ) {
296	$uri .= '/';
297	}
298	$permalink = str_replace( '%pagename%', "{$uri}%pagename%", $permalink );
299	}
300
301	$permalink = array( $permalink, $post->post_name );
302	$post->post_status = $original_status;
303	$post->post_date = $original_date;
304	$post->post_name = $original_name;
305	unset( $post->filter );
306
307	return $permalink;
308	}
309	add_filter( 'get_sample_permalink', 'gutenberg_auto_draft_get_sample_permalink', 10, 5 );
310
311	/**
312	* Registers the image editor.
313	*
314	* @since 7.x.0
315	*/
316	function gutenberg_register_image_editor() {
317	global $wp_version;
318
319	// Strip '-src' from the version string. Messes up version_compare().
320	$version = str_replace( '-src', '', $wp_version );
321
322	// Only register routes for versions older than WP 5.5.
323	if ( version_compare( $version, '5.5-beta', '<' ) ) {
324	$image_editor = new WP_REST_Image_Editor_Controller();
325	$image_editor->register_routes();
326	}
327	}
328	add_filter( 'rest_api_init', 'gutenberg_register_image_editor' );
329
330	/**
331	* Registers the post format search handler.
332	*
333	* @param string $search_handlers Title list of current handlers.
334	*
335	* @return array Title updated list of handlers.
336	*/
337	function gutenberg_post_format_search_handler( $search_handlers ) {
338	if ( current_theme_supports( 'post-formats' ) ) {
339	$search_handlers[] = new WP_REST_Post_Format_Search_Handler();
340	}
341
342	return $search_handlers;
343	}
344	add_filter( 'wp_rest_search_handlers', 'gutenberg_post_format_search_handler', 10, 5 );
345
346	/**
347	* Registers the terms search handler.
348	*
349	* @param string $search_handlers Title list of current handlers.
350	*
351	* @return array Title updated list of handlers.
352	*/
353	function gutenberg_term_search_handler( $search_handlers ) {
354	$search_handlers[] = new WP_REST_Term_Search_Handler();
355	return $search_handlers;
356	}
357	add_filter( 'wp_rest_search_handlers', 'gutenberg_term_search_handler', 10, 5 );
358