The single serial DeliveryWorker is replaced by Infrastructure/Jobs:
- Job rows are leased with one FindOneAndUpdate (oldest RunAt first, a
two-minute lease) and a reaper returns expired leases every 30 s;
- enqueueing wakes the workers, which otherwise poll every five seconds;
- delivery runs eight at a time with at most two per host, so a slow or
dead server holds two slots, not the queue;
- a failure waits n^4 + 15 + jitter seconds (Mastodon's curve) for up to
16 attempts; a 4xx other than 408/429 is final, a 429 honours
Retry-After;
- RemoteInstance is a per-host circuit breaker: ten consecutive failures
quarantine a host for an hour, doubling to a week, and its jobs wait
without spending attempts;
- a delivery is queued once per activity and inbox (unique DedupeKey), and
finished jobs expire after seven days (TTL on FinishedAt).
Migration _004 moves pending Delivery rows into jobs and marks them
abandoned, so a rollback to the old worker cannot send them twice.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
The repo map gains Infrastructure/ and Objects/, the federation invariants
are the ones the code now enforces instead of a list of known holes, and
Commands, Data, Testing and Deploy cover the test project, the startup
order (warm maps, migrate, index), the admin CLI and the deploy checks.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
- Sign-up, login, the invitation flows and password recovery allow ten
requests a minute per client address; the inboxes give each sending
origin (the keyId's) a bucket of 300 that refills at 300 a minute, and
answer 429 beyond it, which peers retry.
- deploy.yml dumps the PrivaPub database to /var/backups before it stops
the service (the last seven are kept), and after the swap checks that
Swagger answers 404 and that the shared inbox answers junk with 400 and
an unsigned activity with 401.
- ActivityPubClient and PostBoost, never used, are gone.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
Infrastructure/Data/Indexes runs at every start, after the migrations:
unique on Post/DmPost ObjectURI, ForeignAvatar ActorURI, the Follower
triple, RootToAvatar, RootUser UserName and ReservedName; plain indexes on
the lookups the services actually make (PublicKeyId, author and group
post listings, ParticipantsKey, the delivery queue).
Migration _001 runs first and removes the duplicates the races could
already have left (keeping the newest actor row, the oldest post, the
accepted follower), then fills ReservedName from every avatar and group.
ReservedName is one username space for personas, groups and the instance:
a name is reserved by an insert the unique index arbitrates, before the
avatar or group is saved, so two simultaneous sign-ups cannot both get it.
A short list of names (admin, support, abuse, postmaster, ...) is never
available.
EntityMaps.Warm touches every entity's collection one at a time before
anything else runs. MongoDB.Entities maps the Entity base class on first
touch, and two types mapped at once throw "An item with the same key has
already been added" and stay broken for the life of the process; the
parallel test run hit it, and the delivery worker racing a request could
have too.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
S14 and the privacy items of P0:
- signing up as "admin" no longer grants admin; `PrivaPub admin promote
<root>` (and `demote`) does, run on the box against the configured
database;
- Swagger is served in Development only;
- every service and controller answers "Something went wrong." where it
used to send ex.Message, and the SMTP warnings no longer log the
recipient's address;
- sign-up and login no longer log the IP, User-Agent and root id together;
- invitation sign-up takes the persona's own AvatarUserName (and optional
AvatarName) instead of naming the avatar after the private login, and
refuses a persona username equal to the login's. Invitation login uses
the named persona, creating it if it is new;
- recovery mail comes from "PrivaPub", not collAnon's support address name.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
S8: a direct message joins a conversation only when its participants are
exactly that conversation's members, found through a new
DmGroup.ParticipantsKey (a hash of the sorted members). A remote context
no longer decides anything: it let anyone who knew a conversation's
context post into it, and joining by context while dropping a participant
would have shown a reply to someone it was not addressed to. A context is
kept only when it is on the author's origin. Sending a DM to the same
people again reuses their conversation instead of opening a new one.
S9: Group.Kind is Circle or Community. A circle is not a federated actor:
its actor, collections, WebFinger and inbox answer 404, a remote Follow is
refused, and posts in it are IsLocalOnly - never delivered, never in an
outbox, never served. Communities keep today's behaviour until P4.
Migration _003 makes every existing group a circle, marks their posts
local-only and backfills the conversation keys.
End-to-end inbox tests sign real deliveries from a fake peer: a context
injection, a forged activity id, a note attributed to someone else, a
cross-origin object, a bad signature, junk bodies and a Follow of a circle.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
S5 of the roadmap. ContentSanitizer wraps HtmlSanitizer with Mastodon's
allowlist: the inline and list tags Mastodon keeps, href/rel/class and
the list attributes, microformat and mention/hashtag/ellipsis/invisible
classes, Mastodon's link schemes, every link rel=nofollow noopener
noreferrer, relative links unlinked, headings folded to a bold paragraph,
and the contents of script, style, svg, iframe and friends dropped rather
than kept as text.
Post and DmPost gain ContentHtml (what is shown) and ContentFormat
(Markdown for local, Html for remote). Inbound Create and Update, and a
remote actor's biography, are sanitized on the way in; local posts store
their Markdig rendering. Migration _002 does the same to what is already
stored, and migrations now run at startup.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
S6 of the roadmap. An inbox POST is refused unless its signature covers
(request-target) and host, as well as the digest and a date or (created).
The Date or (created) may be at most an hour old and fifteen minutes ahead
(it was twelve hours either way), and an (expires) in the past is refused.
The request target is read raw from the server, so a percent-encoded path
verifies as the sender signed it.
Tests cover a Mastodon-shaped delivery and each way of tampering with it,
plus a round trip of our own outbound signature.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
S1 and S2 of the roadmap. RemoteActorService:
- FetchObject accepts a document only when its id is the address it was
served from; a same-origin document naming another address is asked for
at that address once (how GoToSocial serves its key URIs), anything else
is dropped;
- GetActorByKeyId accepts a key only when the actor lists it, its owner is
the actor and it lives on the actor's origin, whether the keyId points at
the actor or at a key document;
- a refetch for a key or an actor happens at most once per five minutes,
so a bad signature cannot make us hammer a host;
- the cache row is written by one atomic upsert on ActorURI;
- every fetch is signed by the instance actor, never by the persona that
happened to receive the activity.
The inbox refuses an activity whose id is not on its actor's origin, and
an Undo of someone else's activity; a Create's object, an Update and a
Delete must be on the actor's origin too, and a cross-origin object is
refetched from its own origin before it is trusted.
Tests: a fake peer on two origins serves forged actors, foreign-owned keys,
cross-origin key documents, aliases and a GoToSocial-style key address
(integration, PRIVAPUB_TEST_MONGOD=1).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
Infrastructure/Http adds the client the roadmap's S3 and S4 ask for:
- the connect callback resolves the name itself and refuses loopback,
private, link-local, CGNAT, documentation, multicast, ULA, NAT64, 6to4,
Teredo and IPv4-mapped/compatible forms, then connects to the vetted
address, so DNS rebinding cannot swap it afterwards;
- redirects are followed by hand, at most three, each one re-checked;
- bodies are capped at 1 MB after decompression, only JSON media types are
read, every request has a 15 s budget, and a refused URL is not asked
again for five minutes.
Actor and WebFinger fetches and inbox deliveries all use it. Test networks
can switch on Federation:AllowPrivateNetworks/AllowPlainHttp; startup
refuses both in Production.
PrivaPub.Tests (xUnit v3) starts with the address table and the fetcher's
limits against an in-process peer; build.yml and deploy.yml run it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
Services/Federation and Controllers/ServerToServer become
Federation/{Actors,Signing,Inbox,Outbox,Rendering,Controllers}, the first step
of the roadmap's layout. No type, route or behaviour changes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
CLAUDE.md records what the project is (one private login owning unlinkable
personas, each its own actor), the deliberately odd route names (peasants,
mouth, anus, human-centipede, sniff/again, and the agreed ones still to come),
the federation and privacy invariants, the data and style conventions, and
how it deploys. docs/ROADMAP.md holds the intent reconstructed from the 2023
code, the gap audit, the owner's decisions of 2026-10-01 (Mastodon client
API, personas unlinkable to others, local-only range posts, communities and
circles), the libraries chosen, and phases P0-P5.
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