Pasture: Pixelfed and WordPress join

Pixelfed 0.14.4 (FrankenPHP with Horizon and the scheduler, on the shared
Postgres and Redis) and WordPress 6 with ActivityPub 9.3.1 (on a new shared
MySQL, WP-Cron run by a sidecar) are peers now, each with its scenario:
Pixelfed 26 checks (photos both ways with alt text, its place arriving as
Rome with its coordinates, comments, likes, a boost, edits and deletes),
WordPress 17 (an Article with its title, our reply, like and boost kept as
comments of their kinds, its edit and removal). Pixelfed has a town driver
and a pair spec: 145 checks pass, 2 expected (G-0007).

What they showed: Pixelfed names our posts by their page (fixed in
26dac40); on PostgreSQL its migration making caption nullable never runs,
so every remote boost failed (the pasture applies it); it files a DM it
fetches as followers-only (G-0007, upstream); Passport refuses a token
whose user id equals its client's id. WordPress signs with RFC 9421
first, which PrivaPub now verifies (c5a69d2).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

tools/pasture/town/check.py

@@ -28,6 +28,9 @@ RECEIVES = {
 # Misskey and its forks drop a reply whose parent they cannot fetch ("Error in inReplyTo ... 404"): a reply to a
 # followers-only post or a DM they do not hold never lands there, whoever sent it (docs/INTEROP.md, Misskey)
 DROPS_ORPHAN_REPLIES = {"misskey", "sharkey"}
+# Pixelfed is a photo platform: it keeps a post only when it carries a picture (a Note without one is dropped as it
+# arrives), and a reply only to a post it holds
+NEEDS_PICTURE = {"pixelfed"}
 
 
 class World:
@@ -205,6 +208,9 @@ class Sweep:
 					and parent["visibility"] not in ("public", "unlisted")
 				if orphan:
 					continue
+				if p in NEEDS_PICTURE and (o.get("kind") not in ("image", "video") if parent is None
+										   else not (stored.get(p, {}).get(parent["uri"]) and stored[p][parent["uri"]].exists)):
+					continue
 				if p in want and (receives is None or kind in receives):
 					fetched = p in o.get("fetched_on", {})
 					# whether a follower of the author lives on p, or only the accounts it mentions or answers