A root exports one of its personas (a job) as Mastodon's account archive, so other servers' importers read it: the
actor with its public key only, its own posts and boosts with their media, likes, bookmarks and Mastodon's CSV files,
plus PrivaPub's filters, followed hashtags, notification policy, pins, scheduled and located posts; nothing of its root,
its siblings, its keys or anyone's token. A ticket link downloads it, for a week.
An archive (PrivaPub's or Mastodon's) uploaded in pieces is imported into a persona in a job, the parts the root picks,
with progress and a stop. SafeArchive refuses links, escaping paths, duplicates, bombs and oversized items, and reads the
outbox one item at a time. Imported posts are delivered to no one, put in no home and notify nobody, yet show on the
profile, outbox, hashtags and search; back home a post keeps its id, from another actor it gets one of its date and
ImportedFromURI, so importing twice changes nothing. Relationships go through the existing services; located, scheduled
and likes only when asked; followers never.
tools/pasture/scenarios/persona-archive.sh imports mastouser's real Mastodon archive (156 posts, 24 pictures) into a
persona Mastodon follows: Mastodon receives none of it, and a second import changes nothing.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw
/clientapi/admin/backups (owner decision 2026-10-07, approving these endpoints in production): the list with what runs,
the restore waiting and the last restore's report; back up now; delete; a download for the password, through a ticket
good for ten minutes in the link's path, as one tar whose length is known first and which honours Range (BackupTar);
an upload in pieces of at most 32 MB, each at the offset already received or refused with it, so a broken upload
resumes, read into a backup only when it holds nothing but plain files under one backup's folder; and a restore for
the password and the host typed out. Every call checks the administrator against the database. nginx streams downloads
for an hour and takes upload pieces unbuffered, rate-limited.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw
- The media proxy streams ranged requests from the origin (passing the range on, never caching), downloads and caches
whole files otherwise, and serves cached files with range support. A PeerTube video is never fetched whole for one
viewer, and clients still never contact the remote host.
- PeerTube's fragmented MP4 files inside an HLS entry are read as variants, so HLS-only instances play too.
- A remote Video or Audio post becomes one playable Mastodon attachment: the best MP4 up to 720p that carries both
sound and picture, with its poster and duration; the card is kept only when nothing is playable.
- nginx: /media/proxy/ with proxy_buffering off and a 600 s read timeout (applied on the box, with a backup).
Checked live: a GoToSocial image through the proxy answers 206 with exactly the asked range when streamed, 200 when
cached, and 206 with the right Content-Range from the cache.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
- /api/v1/media and /api/v2/media (and GET/PUT /api/v1/media/:id):
images go through libvips (NetVips, its native build bundled):
autorotated, every kind of metadata dropped (EXIF, GPS, XMP, IPTC,
comments), capped at 4096 px, with a 640 px preview and a blurhash
(own encoder, the reference algorithm); animated GIFs are re-encoded;
video and audio are remuxed by ffmpeg with -map_metadata -1, never
re-encoded, and a video gets a still preview. Files get random names
under /var/lib/privapub/media, outside the web root deploys replace, and
are served at /media/files with nosniff and a sandbox CSP.
- media_ids on create and edit (four at most, the persona's own, each used
once); notes carry them as Document attachments with alt text, blurhash,
focalPoint and size; inbound attachments were already kept.
- avatar and header uploads in update_credentials, cropped to 400x400 and
1500x500, federated with Update{Person}.
- Remote media reaches clients only through /media/proxy/{hmac}/{url},
fetched by the guarded client (no SVG, 40 MB cap) and cached outside the
served root, trimmed to 5 GB; foreign avatars and headers use it too, so
a client never contacts another server.
- MediaJanitor deletes uploads left unattached for a day.
- nginx accepts 100 MB bodies on the upload endpoints only (applied on Max).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
The tree had not compiled since its first commit: Group, DmGroup and
IGroupUsersService were referenced and never written, an IDE rename had
turned the user-settings DTO into the ViewAvatarServer enum, and the settings
were saved as an entity they no longer were.
Built now:
- Group (an ActivityPub Group actor with its own keys, members, invitation
code and optional password) and DmGroup (a conversation), with
/clientapi/group/{list,insert,update,join,leave,approve}.
- Posts and DMs: /clientapi/post/{list,insert,delete}, /clientapi/dm/{list,insert};
DM recipients are local usernames or user@host handles resolved by WebFinger.
- Invitation sign-up and login against the group's invitation code, checking
the password before any account is created.
- Federation: WebFinger, NodeInfo 2.0, actors at /peasants/{name} (Person,
Group, and an Application instance actor) with SPKI keys, draft-cavage
RSA-SHA256 HTTP signatures both ways, an inbox handling Follow (+Accept),
Undo, Create, Delete and Update, an outbox, notes at /posts/{id}, and a
persisted, retried, signed delivery queue. A post to a group is announced
by the group to its followers (FEP-1b12).
- The unused, broken typed ActivityPub models are replaced by a renderer;
NSign's HMAC setup, which could not federate, is gone.
Upgrade: net10.0, MongoDB.Entities 25.1 (instance DB API, Standard GUIDs),
Swashbuckle 10 / OpenApi 2, Serilog.AspNetCore 10, MailKit 4.18,
PasswordGenerator 3. The JWT keys are 64 bytes (IdentityModel 8 refuses
shorter for HS512). Production runs its own mongod on 127.0.0.1:27022, as
Sintopia's apps do, and deploys to privapub.thepra.dev from the build runner.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
thepraandClaude Opus 5.5