← All changes | includes/agents/abilities.php +82 -7 1.0.0 → 1.1.12 View file →

		@@ -290,8 +290,35 @@
290	290
291	291	/**
292	292	* `desktop-mode/get-post` permission callback.
293	293	*
	294	+ * Asks every gate a single read has, in the order Core's REST
	295	+ * controllers ask them:
	296	+ *
	297	+ * - A zero id is refused before any fetch: `get_post( 0 )` returns
	298	+ * the global post, which would judge the request against whatever
	299	+ * another plugin left there.
	300	+ * - `read_post` decides visibility (published / private / draft) and
	301	+ * stays the floor for every row.
	302	+ * - The post password is a separate question — WordPress splits the
	303	+ * two deliberately. A sealed post stays sealed unless the caller can
	304	+ * edit it (the same escape hatch
	305	+ * `WP_REST_Posts_Controller::check_password_required()` grants), and
	306	+ * because this ability returns RAW `post_content` there is no empty
	307	+ * rendered field to fall back to, so the answer is to refuse.
	308	+ * - A post type with no readable front end (`is_post_type_viewable()`
	309	+ * false: an order, a submission log, a queue entry) is read only by
	310	+ * a caller who can edit the row. `map_meta_cap()` resolves
	311	+ * `read_post` on a published row of such a type to plain `read`,
	312	+ * which every logged-in user holds, so `read_post` alone does not
	313	+ * answer the question for it.
	314	+ *
	315	+ * `openstation_ai_can_read_post()` (loaded unconditionally from the AI
	316	+ * Copilot bootstrap, ahead of this module) implements the password and
	317	+ * post-type gates; this callback keeps `read_post` in front of it so a
	318	+ * plugin that narrows `read_post` on a public post still narrows this
	319	+ * ability.
	320	+ *
294	321	* @param array $args Input args.
295	322	* @return bool
296	323	*/
297	324	function openstation_agents_ability_get_post_can( $args ) {
		@@ -299,9 +326,12 @@
299	326	$post_id = isset( $args['post_id'] ) ? (int) $args['post_id'] : 0;
300	327	if ( $post_id <= 0 ) {
301	328	return false;
302	329	}
303		- return current_user_can( 'read_post', $post_id );
	330	+ if ( ! current_user_can( 'read_post', $post_id ) ) {
	331	+ return false;
	332	+ }
	333	+ return openstation_ai_can_read_post( $post_id );
304	334	}
305	335
306	336	/**
307	337	* `desktop-mode/get-media` execute callback.
		@@ -339,14 +369,33 @@
339	369
340	370	/**
341	371	* `desktop-mode/get-media` permission callback.
342	372	*
343		- * Gates on `upload_files` (author+), deliberately NOT on `read_post`:
344		- * for `inherit`-status attachments that check defers to the parent
345		- * post (and effectively requires edit rights when unattached), which
346		- * wrongly blocks read-only access to media whose file URL is public
347		- * on a standard site anyway.
	373	+ * Gates on `upload_files` (author+) — the capability the Media
	374	+ * Library itself requires — rather than on `read_post` of the
	375	+ * attachment.
348	376	*
	377	+ * An attached file is a child of its parent post, and the result
	378	+ * carries the attachment's title, caption and `attachedTo` (the parent
	379	+ * id), so an attached file also requires that the caller can read the
	380	+ * parent. That follows the shape of Core's rule for `inherit`-status
	381	+ * attachments, `WP_REST_Posts_Controller::check_read_permission()`
	382	+ * (the attachments controller inherits it): an attachment defers to
	383	+ * its parent whenever one exists. The parent is judged by `read_post`,
	384	+ * plus the post-type rule `desktop-mode/get-post` applies (a type with
	385	+ * no readable front end needs `edit_post`), which is stricter than Core
	386	+ * on a non-viewable parent: Core admits any `publish` parent of a
	387	+ * REST-enabled type. Core's other requirement, that the parent's type
	388	+ * be `show_in_rest`, is not copied: it would refuse media attached to a
	389	+ * non-REST type for every caller, administrators included. The
	390	+ * parent's password is not asked: the attachment's own fields are not
	391	+ * the parent's body, and Core's attachment read does not ask it either.
	392	+ *
	393	+ * An unattached file, or one whose parent row no longer exists, is
	394	+ * judged on `upload_files` alone, as Core treats a parentless
	395	+ * `inherit` attachment as published. A zero id is refused before any
	396	+ * fetch, because `get_post( 0 )` returns the global post.
	397	+ *
349	398	* @param array $args Input args.
350	399	* @return bool
351	400	*/
352	401	function openstation_agents_ability_get_media_can( $args ) {
		@@ -354,9 +403,35 @@
354	403	$attachment_id = isset( $args['attachment_id'] ) ? (int) $args['attachment_id'] : 0;
355	404	if ( $attachment_id <= 0 ) {
356	405	return false;
357	406	}
358		- return current_user_can( 'upload_files' );
	407	+ if ( ! current_user_can( 'upload_files' ) ) {
	408	+ return false;
	409	+ }
	410	+
	411	+ $attachment = get_post( $attachment_id );
	412	+ if ( ! ( $attachment instanceof WP_Post ) || 'attachment' !== $attachment->post_type ) {
	413	+ // The execute callback answers "not found" for these.
	414	+ return true;
	415	+ }
	416	+
	417	+ $parent_id = (int) $attachment->post_parent;
	418	+ if ( $parent_id <= 0 || $parent_id === $attachment_id ) {
	419	+ return true;
	420	+ }
	421	+ $parent = get_post( $parent_id );
	422	+ if ( ! ( $parent instanceof WP_Post ) ) {
	423	+ return true;
	424	+ }
	425	+
	426	+ if ( ! current_user_can( 'read_post', $parent->ID ) ) {
	427	+ return false;
	428	+ }
	429	+ $parent_type = get_post_type_object( $parent->post_type );
	430	+ if ( ! $parent_type || ! is_post_type_viewable( $parent_type ) ) {
	431	+ return current_user_can( 'edit_post', $parent->ID );
	432	+ }
	433	+ return true;
359	434	}
360	435
361	436	/**
362	437	* `desktop-mode/update-media` execute callback.