activitypub / integration / class-classic-editor.php

class-classic-editor.php in ActivityPub 8.1.1, at integration/class-classic-editor.php

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1	<?php
2	/**
3	* Classic Editor integration file.
4	*
5	* @package Activitypub
6	*/
7
8	namespace Activitypub\Integration;
9
10	/**
11	* Classic Editor integration class.
12	*
13	* Handles compatibility with the Classic Editor plugin and sites without block editor support.
14	*/
15	class Classic_Editor {
16
17	/**
18	* Initialize the class, registering WordPress hooks.
19	*/
20	public static function init() {
21	\add_filter( 'activitypub_attachments_media_markup', array( self::class, 'filter_attachments_media_markup' ), 10, 2 );
22	\add_filter( 'activitypub_attachment_ids', array( self::class, 'filter_attached_media_ids' ), 10, 2 );
23	\add_action( 'add_meta_boxes', array( self::class, 'add_meta_box' ) );
24	\add_action( 'save_post', array( self::class, 'save_meta_data' ) );
25
26	if ( \function_exists( 'classicpress_version' ) ) {
27	\add_filter( 'activitypub_site_supports_blocks', '__return_false' );
28	}
29	}
30
31	/**
32	* Filter attachment media markup to use shortcodes instead of blocks.
33	*
34	* @param string $markup The custom markup. Empty string by default.
35	* @param array $attachment_ids Array of attachment IDs.
36	*
37	* @return string The generated shortcode markup.
38	*/
39	public static function filter_attachments_media_markup( $markup, $attachment_ids ) {
40	if ( empty( $attachment_ids ) ) {
41	return $markup;
42	}
43
44	$type = strtok( \get_post_mime_type( $attachment_ids[0] ), '/' );
45
46	// Single video or audio file: use media shortcode.
47	if ( 1 === \count( $attachment_ids ) && ( 'video' === $type \|\| 'audio' === $type ) ) {
48	return sprintf(
49	'[%1$s src="%2$s"]',
50	\esc_attr( $type ),
51	\esc_url( \wp_get_attachment_url( $attachment_ids[0] ) )
52	);
53	}
54
55	// Multiple attachments or images: use gallery shortcode.
56	return '[gallery ids="' . implode( ',', $attachment_ids ) . '" link="none"]';
57	}
58
59	/**
60	* Filter to add attached media IDs from the post's media library.
61	*
62	* Returns additional image attachments from the post's media library,
63	* respecting the maximum image attachment limit. Only returns new
64	* attachments that can be added without exceeding the limit.
65	*
66	* @param array $attachments The current list of attachments.
67	* @param \WP_Post $item The post item.
68	*
69	* @return array Array of new media IDs to add (as associative arrays with 'id' key).
70	* Returns empty array if already at or over the limit.
71	*/
72	public static function filter_attached_media_ids( $attachments, $item ) {
73	$max_media = \get_option( 'activitypub_max_image_attachments', \ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS );
74	$actual_count = \max( 0, $max_media - \count( $attachments ) );
75
76	if ( $actual_count <= 0 ) {
77	return $attachments;
78	}
79
80	$query = new \WP_Query(
81	array(
82	'post_parent' => $item->ID,
83	'post_status' => 'inherit',
84	'post_type' => 'attachment',
85	'post_mime_type' => 'image',
86	'order' => 'ASC',
87	'orderby' => 'menu_order ID',
88	'fields' => 'ids',
89	'posts_per_page' => $actual_count,
90	)
91	);
92
93	// Transform IDs into associative arrays.
94	$media_ids = \array_map(
95	static function ( $id ) {
96	return array( 'id' => $id );
97	},
98	$query->get_posts()
99	);
100
101	return \array_merge( $attachments, $media_ids );
102	}
103
104	/**
105	* Add ActivityPub meta box to the post editor.
106	*
107	* @param string $post_type The post type.
108	*/
109	public static function add_meta_box( $post_type ) {
110	// Only add for post types that support ActivityPub.
111	if ( ! \post_type_supports( $post_type, 'activitypub' ) ) {
112	return;
113	}
114
115	\add_meta_box(
116	'activitypub-settings',
117	\__( 'Fediverse ⁂', 'activitypub' ),
118	array( self::class, 'render_meta_box' ),
119	$post_type,
120	'side',
121	'default'
122	);
123	}
124
125	/**
126	* Render the ActivityPub meta box.
127	*
128	* @param \WP_Post $post The post object.
129	*/
130	public static function render_meta_box( $post ) {
131	// Add nonce for security.
132	\wp_nonce_field( 'activitypub_meta_box', 'activitypub_meta_box_nonce' );
133
134	// Get current values.
135	$content_warning = \get_post_meta( $post->ID, 'activitypub_content_warning', true );
136	$max_image_attachments = \get_post_meta( $post->ID, 'activitypub_max_image_attachments', true );
137	$content_visibility = self::get_default_visibility( $post );
138	$default_quote_policy = \get_option( 'activitypub_default_quote_policy', ACTIVITYPUB_INTERACTION_POLICY_ANYONE );
139	$quote_interaction = \get_post_meta( $post->ID, 'activitypub_interaction_policy_quote', true ) ?: $default_quote_policy;
140
141	?>
142	<p>
143	<label for="activitypub_content_warning">
144	<strong><?php \esc_html_e( 'Content Warning', 'activitypub' ); ?></strong>
145	</label><br />
146	<input type="text" id="activitypub_content_warning" name="activitypub_content_warning" value="<?php echo \esc_attr( $content_warning ); ?>" class="widefat" placeholder="<?php \esc_attr_e( 'Optional content warning', 'activitypub' ); ?>" />
147	<span class="howto"><?php \esc_html_e( 'Content warnings do not change the content on your site, only in the fediverse.', 'activitypub' ); ?></span>
148	</p>
149
150	<p>
151	<label for="activitypub_max_image_attachments">
152	<strong><?php \esc_html_e( 'Maximum Image Attachments', 'activitypub' ); ?></strong>
153	</label><br />
154	<input type="number" id="activitypub_max_image_attachments" name="activitypub_max_image_attachments" value="<?php echo \esc_attr( $max_image_attachments ); ?>" min="0" max="10" class="small-text" />
155	<span class="howto"><?php \esc_html_e( 'Maximum number of image attachments to include when sharing to the fediverse.', 'activitypub' ); ?></span>
156	</p>
157
158	<p>
159	<strong><?php \esc_html_e( 'Visibility', 'activitypub' ); ?></strong><br />
160	<label>
161	<input type="radio" name="activitypub_content_visibility" value="<?php echo \esc_attr( ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC ); ?>" <?php \checked( $content_visibility, ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC ); ?> />
162	<?php \esc_html_e( 'Public', 'activitypub' ); ?>
163	</label><br />
164	<label>
165	<input type="radio" name="activitypub_content_visibility" value="<?php echo \esc_attr( ACTIVITYPUB_CONTENT_VISIBILITY_QUIET_PUBLIC ); ?>" <?php \checked( $content_visibility, ACTIVITYPUB_CONTENT_VISIBILITY_QUIET_PUBLIC ); ?> />
166	<?php \esc_html_e( 'Quiet public', 'activitypub' ); ?>
167	</label><br />
168	<label>
169	<input type="radio" name="activitypub_content_visibility" value="<?php echo \esc_attr( ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL ); ?>" <?php \checked( $content_visibility, ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL ); ?> />
170	<?php \esc_html_e( 'Do not federate', 'activitypub' ); ?>
171	</label><br />
172	<span class="howto"><?php \esc_html_e( 'This adjusts the visibility of a post in the fediverse, but note that it won\'t affect how the post appears on the blog.', 'activitypub' ); ?></span>
173	</p>
174
175	<p>
176	<label for="activitypub_interaction_policy_quote">
177	<strong><?php \esc_html_e( 'Who can quote this post?', 'activitypub' ); ?></strong>
178	</label><br />
179	<select id="activitypub_interaction_policy_quote" name="activitypub_interaction_policy_quote" class="widefat">
180	<option value="<?php echo \esc_attr( ACTIVITYPUB_INTERACTION_POLICY_ANYONE ); ?>" <?php \selected( $quote_interaction, ACTIVITYPUB_INTERACTION_POLICY_ANYONE ); ?>><?php \esc_html_e( 'Anyone', 'activitypub' ); ?></option>
181	<option value="<?php echo \esc_attr( ACTIVITYPUB_INTERACTION_POLICY_FOLLOWERS ); ?>" <?php \selected( $quote_interaction, ACTIVITYPUB_INTERACTION_POLICY_FOLLOWERS ); ?>><?php \esc_html_e( 'Followers only', 'activitypub' ); ?></option>
182	<option value="<?php echo \esc_attr( ACTIVITYPUB_INTERACTION_POLICY_ME ); ?>" <?php \selected( $quote_interaction, ACTIVITYPUB_INTERACTION_POLICY_ME ); ?>><?php \esc_html_e( 'Just me', 'activitypub' ); ?></option>
183	</select>
184	<span class="howto">
185	<?php \esc_html_e( 'Quoting allows others to cite your post while adding their own commentary.', 'activitypub' ); ?>
186	<?php
187	printf(
188	/* translators: %s: The current site default quote policy. Note the leading space. */
189	\esc_html__( ' Site default: %s', 'activitypub' ),
190	\esc_html( self::get_quote_policy_label( $default_quote_policy ) )
191	);
192	?>
193	</span>
194	</p>
195	<?php
196	}
197
198	/**
199	* Get the label for a quote policy value.
200	*
201	* @param string $policy The policy value.
202	*
203	* @return string The translated label.
204	*/
205	private static function get_quote_policy_label( $policy ) {
206	$labels = array(
207	ACTIVITYPUB_INTERACTION_POLICY_ANYONE => \__( 'Anyone', 'activitypub' ),
208	ACTIVITYPUB_INTERACTION_POLICY_FOLLOWERS => \__( 'Followers only', 'activitypub' ),
209	ACTIVITYPUB_INTERACTION_POLICY_ME => \__( 'Just me', 'activitypub' ),
210	);
211
212	return $labels[ $policy ] ?? $labels[ ACTIVITYPUB_INTERACTION_POLICY_ANYONE ];
213	}
214
215	/**
216	* Get default visibility based on post age and federation status.
217	*
218	* @param \WP_Post $post The post object.
219	*
220	* @return string The default visibility value.
221	*/
222	private static function get_default_visibility( $post ) {
223	// If already set, use that value.
224	$saved_visibility = \get_post_meta( $post->ID, 'activitypub_content_visibility', true );
225	if ( $saved_visibility ) {
226	return $saved_visibility;
227	}
228
229	// If post is federated, use public.
230	$status = \get_post_meta( $post->ID, 'activitypub_status', true );
231	if ( ACTIVITYPUB_OBJECT_STATE_FEDERATED === $status ) {
232	return ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC;
233	}
234
235	// If post is older than 1 month, default to local.
236	$post_timestamp = \strtotime( $post->post_date );
237	$one_month_ago = \strtotime( '-30 days' );
238
239	if ( $post_timestamp < $one_month_ago ) {
240	return ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL;
241	}
242
243	// Default to public for new posts.
244	return ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC;
245	}
246
247	/**
248	* Save ActivityPub meta data.
249	*
250	* @param int $post_id The post ID.
251	*/
252	public static function save_meta_data( $post_id ) {
253	// Check if this is an autosave.
254	if ( \defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
255	return;
256	}
257
258	// Only process for post types that support ActivityPub.
259	if ( ! \post_type_supports( \get_post_type( $post_id ), 'activitypub' ) ) {
260	return;
261	}
262
263	// Check user permissions.
264	if ( ! \current_user_can( 'edit_post', $post_id ) ) {
265	return;
266	}
267
268	// Verify nonce is present and valid.
269	if ( ! isset( $_POST['activitypub_meta_box_nonce'] ) ) {
270	return;
271	}
272
273	if ( ! \wp_verify_nonce( \sanitize_text_field( \wp_unslash( $_POST['activitypub_meta_box_nonce'] ) ), 'activitypub_meta_box' ) ) {
274	return;
275	}
276
277	// Save content warning.
278	if ( isset( $_POST['activitypub_content_warning'] ) ) {
279	$content_warning = \sanitize_text_field( \wp_unslash( $_POST['activitypub_content_warning'] ) );
280	if ( ! empty( $content_warning ) ) {
281	\update_post_meta( $post_id, 'activitypub_content_warning', $content_warning );
282	} else {
283	\delete_post_meta( $post_id, 'activitypub_content_warning' );
284	}
285	}
286
287	// Save max image attachments.
288	if ( isset( $_POST['activitypub_max_image_attachments'] ) ) {
289	$max_images = \absint( $_POST['activitypub_max_image_attachments'] );
290	\update_post_meta( $post_id, 'activitypub_max_image_attachments', $max_images );
291	}
292
293	// Save content visibility.
294	if ( isset( $_POST['activitypub_content_visibility'] ) ) {
295	$visibility = \sanitize_text_field( \wp_unslash( $_POST['activitypub_content_visibility'] ) );
296	\update_post_meta( $post_id, 'activitypub_content_visibility', $visibility );
297	}
298
299	// Save quote interaction policy.
300	if ( isset( $_POST['activitypub_interaction_policy_quote'] ) ) {
301	$quote_policy = \sanitize_text_field( \wp_unslash( $_POST['activitypub_interaction_policy_quote'] ) );
302	\update_post_meta( $post_id, 'activitypub_interaction_policy_quote', $quote_policy );
303	}
304	}
305	}
306