activitypub / integration / class-classic-editor.php

class-classic-editor.php in ActivityPub 7.8.4, 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_filter( 'activitypub_site_supports_blocks', '__return_false' );
24	\add_action( 'add_meta_boxes', array( self::class, 'add_meta_box' ) );
25	\add_action( 'save_post', array( self::class, 'save_meta_data' ) );
26	}
27
28	/**
29	* Filter attachment media markup to use shortcodes instead of blocks.
30	*
31	* @param string $markup The custom markup. Empty string by default.
32	* @param array $attachment_ids Array of attachment IDs.
33	*
34	* @return string The generated shortcode markup.
35	*/
36	public static function filter_attachments_media_markup( $markup, $attachment_ids ) {
37	if ( empty( $attachment_ids ) ) {
38	return $markup;
39	}
40
41	$type = strtok( \get_post_mime_type( $attachment_ids[0] ), '/' );
42
43	// Single video or audio file: use media shortcode.
44	if ( 1 === \count( $attachment_ids ) && ( 'video' === $type \|\| 'audio' === $type ) ) {
45	return sprintf(
46	'[%1$s src="%2$s"]',
47	\esc_attr( $type ),
48	\esc_url( \wp_get_attachment_url( $attachment_ids[0] ) )
49	);
50	}
51
52	// Multiple attachments or images: use gallery shortcode.
53	return '[gallery ids="' . implode( ',', $attachment_ids ) . '" link="none"]';
54	}
55
56	/**
57	* Filter to add attached media IDs from the post's media library.
58	*
59	* Returns additional image attachments from the post's media library,
60	* respecting the maximum image attachment limit. Only returns new
61	* attachments that can be added without exceeding the limit.
62	*
63	* @param array $attachments The current list of attachments.
64	* @param \WP_Post $item The post item.
65	*
66	* @return array Array of new media IDs to add (as associative arrays with 'id' key).
67	* Returns empty array if already at or over the limit.
68	*/
69	public static function filter_attached_media_ids( $attachments, $item ) {
70	$max_media = \get_option( 'activitypub_max_image_attachments', \ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS );
71	$actual_count = \max( 0, $max_media - \count( $attachments ) );
72
73	if ( $actual_count <= 0 ) {
74	return $attachments;
75	}
76
77	$query = new \WP_Query(
78	array(
79	'post_parent' => $item->ID,
80	'post_status' => 'inherit',
81	'post_type' => 'attachment',
82	'post_mime_type' => 'image',
83	'order' => 'ASC',
84	'orderby' => 'menu_order ID',
85	'fields' => 'ids',
86	'posts_per_page' => $actual_count,
87	)
88	);
89
90	// Transform IDs into associative arrays.
91	$media_ids = \array_map(
92	static function ( $id ) {
93	return array( 'id' => $id );
94	},
95	$query->get_posts()
96	);
97
98	return \array_merge( $attachments, $media_ids );
99	}
100
101	/**
102	* Add ActivityPub meta box to the post editor.
103	*
104	* @param string $post_type The post type.
105	*/
106	public static function add_meta_box( $post_type ) {
107	// Only add for post types that support ActivityPub.
108	if ( ! \post_type_supports( $post_type, 'activitypub' ) ) {
109	return;
110	}
111
112	\add_meta_box(
113	'activitypub-settings',
114	\__( 'Fediverse ⁂', 'activitypub' ),
115	array( self::class, 'render_meta_box' ),
116	$post_type,
117	'side',
118	'default'
119	);
120	}
121
122	/**
123	* Render the ActivityPub meta box.
124	*
125	* @param \WP_Post $post The post object.
126	*/
127	public static function render_meta_box( $post ) {
128	// Add nonce for security.
129	\wp_nonce_field( 'activitypub_meta_box', 'activitypub_meta_box_nonce' );
130
131	// Get current values.
132	$content_warning = \get_post_meta( $post->ID, 'activitypub_content_warning', true );
133	$max_image_attachments = \get_post_meta( $post->ID, 'activitypub_max_image_attachments', true );
134	$content_visibility = self::get_default_visibility( $post );
135	$quote_interaction = \get_post_meta( $post->ID, 'activitypub_interaction_policy_quote', true ) ?: ACTIVITYPUB_INTERACTION_POLICY_ANYONE;
136
137	?>
138	<p>
139	<label for="activitypub_content_warning">
140	<strong><?php \esc_html_e( 'Content Warning', 'activitypub' ); ?></strong>
141	</label><br />
142	<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' ); ?>" />
143	<span class="howto"><?php \esc_html_e( 'Content warnings do not change the content on your site, only in the fediverse.', 'activitypub' ); ?></span>
144	</p>
145
146	<p>
147	<label for="activitypub_max_image_attachments">
148	<strong><?php \esc_html_e( 'Maximum Image Attachments', 'activitypub' ); ?></strong>
149	</label><br />
150	<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" />
151	<span class="howto"><?php \esc_html_e( 'Maximum number of image attachments to include when sharing to the fediverse.', 'activitypub' ); ?></span>
152	</p>
153
154	<p>
155	<strong><?php \esc_html_e( 'Visibility', 'activitypub' ); ?></strong><br />
156	<label>
157	<input type="radio" name="activitypub_content_visibility" value="<?php echo \esc_attr( ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC ); ?>" <?php \checked( $content_visibility, ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC ); ?> />
158	<?php \esc_html_e( 'Public', 'activitypub' ); ?>
159	</label><br />
160	<label>
161	<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 ); ?> />
162	<?php \esc_html_e( 'Quiet public', 'activitypub' ); ?>
163	</label><br />
164	<label>
165	<input type="radio" name="activitypub_content_visibility" value="<?php echo \esc_attr( ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL ); ?>" <?php \checked( $content_visibility, ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL ); ?> />
166	<?php \esc_html_e( 'Do not federate', 'activitypub' ); ?>
167	</label><br />
168	<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>
169	</p>
170
171	<p>
172	<label for="activitypub_interaction_policy_quote">
173	<strong><?php \esc_html_e( 'Who can quote this post?', 'activitypub' ); ?></strong>
174	</label><br />
175	<select id="activitypub_interaction_policy_quote" name="activitypub_interaction_policy_quote" class="widefat">
176	<option value="anyone" <?php \selected( $quote_interaction, ACTIVITYPUB_INTERACTION_POLICY_ANYONE ); ?>><?php \esc_html_e( 'Anyone', 'activitypub' ); ?></option>
177	<option value="followers" <?php \selected( $quote_interaction, ACTIVITYPUB_INTERACTION_POLICY_FOLLOWERS ); ?>><?php \esc_html_e( 'Followers only', 'activitypub' ); ?></option>
178	<option value="me" <?php \selected( $quote_interaction, ACTIVITYPUB_INTERACTION_POLICY_ME ); ?>><?php \esc_html_e( 'Just me', 'activitypub' ); ?></option>
179	</select>
180	<span class="howto"><?php \esc_html_e( 'Quoting allows others to cite your post while adding their own commentary.', 'activitypub' ); ?></span>
181	</p>
182	<?php
183	}
184
185	/**
186	* Get default visibility based on post age and federation status.
187	*
188	* @param \WP_Post $post The post object.
189	*
190	* @return string The default visibility value.
191	*/
192	private static function get_default_visibility( $post ) {
193	// If already set, use that value.
194	$saved_visibility = \get_post_meta( $post->ID, 'activitypub_content_visibility', true );
195	if ( $saved_visibility ) {
196	return $saved_visibility;
197	}
198
199	// If post is federated, use public.
200	$status = \get_post_meta( $post->ID, 'activitypub_status', true );
201	if ( 'federated' === $status ) {
202	return ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC;
203	}
204
205	// If post is older than 1 month, default to local.
206	$post_timestamp = \strtotime( $post->post_date );
207	$one_month_ago = \strtotime( '-30 days' );
208
209	if ( $post_timestamp < $one_month_ago ) {
210	return ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL;
211	}
212
213	// Default to public for new posts.
214	return ACTIVITYPUB_CONTENT_VISIBILITY_PUBLIC;
215	}
216
217	/**
218	* Save ActivityPub meta data.
219	*
220	* @param int $post_id The post ID.
221	*/
222	public static function save_meta_data( $post_id ) {
223	// Check if this is an autosave.
224	if ( \defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
225	return;
226	}
227
228	// Only process for post types that support ActivityPub.
229	if ( ! \post_type_supports( \get_post_type( $post_id ), 'activitypub' ) ) {
230	return;
231	}
232
233	// Check user permissions.
234	if ( ! \current_user_can( 'edit_post', $post_id ) ) {
235	return;
236	}
237
238	// Verify nonce is present and valid.
239	if ( ! isset( $_POST['activitypub_meta_box_nonce'] ) ) {
240	return;
241	}
242
243	if ( ! \wp_verify_nonce( \sanitize_text_field( \wp_unslash( $_POST['activitypub_meta_box_nonce'] ) ), 'activitypub_meta_box' ) ) {
244	return;
245	}
246
247	// Save content warning.
248	if ( isset( $_POST['activitypub_content_warning'] ) ) {
249	$content_warning = \sanitize_text_field( \wp_unslash( $_POST['activitypub_content_warning'] ) );
250	if ( ! empty( $content_warning ) ) {
251	\update_post_meta( $post_id, 'activitypub_content_warning', $content_warning );
252	} else {
253	\delete_post_meta( $post_id, 'activitypub_content_warning' );
254	}
255	}
256
257	// Save max image attachments.
258	if ( isset( $_POST['activitypub_max_image_attachments'] ) ) {
259	$max_images = \absint( $_POST['activitypub_max_image_attachments'] );
260	\update_post_meta( $post_id, 'activitypub_max_image_attachments', $max_images );
261	}
262
263	// Save content visibility.
264	if ( isset( $_POST['activitypub_content_visibility'] ) ) {
265	$visibility = \sanitize_text_field( \wp_unslash( $_POST['activitypub_content_visibility'] ) );
266	\update_post_meta( $post_id, 'activitypub_content_visibility', $visibility );
267	}
268
269	// Save quote interaction policy.
270	if ( isset( $_POST['activitypub_interaction_policy_quote'] ) ) {
271	$quote_policy = \sanitize_text_field( \wp_unslash( $_POST['activitypub_interaction_policy_quote'] ) );
272	\update_post_meta( $post_id, 'activitypub_interaction_policy_quote', $quote_policy );
273	}
274	}
275	}
276