Auth model change: ergo-auth-member now verifies the SASL passphrase against a
per-member pbkdf2 hash (/var/lib/ergo/irc-passwd) in addition to BBS membership,
replacing the old "membership is the credential, passphrase ignored" gate that
let anyone who knew a member name connect as them. Rewrote deploy/ergo/auth-script.sh
in python3 (drops jq/curl dep); setup.sh already installs it as ergo-auth-member.
- scripts/set-irc-password.sh: set/rotate a member's IRC password (or --all to
backfill); also syncs The Lounge saslPassword so the web client keeps working.
- setup.sh landing page: new "IRC from a desktop client" section with irssi/HexChat/
WeeChat SASL setup (connect by network name ProfullstackBBS, not hostname).
- docs/irc.md: document password auth, the helper, the 6697 cloud-firewall note,
and an irssi quick-start.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Rework the IRC access model to the user-level source of truth — the
bbs.profullstack.com user store — per the agreed design:
- Auth via the store, not OS users. New loopback endpoint /irc-auth (on the
/verify server) answers {member,premium} from the store via UserByName. Ergo's
auth-script now curls it instead of `getent passwd`; the OS-user (tilde.town)
reconcile in setup.sh is reverted. require-sasl on, registration off.
- Remove the in-BBS `ssh irc@` route: delete internal/irc (in-process client +
TUI), handleIRC/runIRC, the hub IRC menu entry, and the dispatch case. Members
connect with an external client (or web) at irc.profullstack.com:6697 / wss.
IRCNames kept only to reserve the "irc" name (IsIRCName removed).
- Keep external clients; keep the irc.profullstack.com hostname + cert work.
Premium channel creation: /irc-auth already returns each account's premium
status, but enforcement is NOT yet wired (the old irc@ /create was removed with
the route; Ergo can't gate creation per-account natively). operator-only-creation
stays off for now; server-side premium gating (a ChanServ-style bot) is a
documented follow-up. See docs/irc.md.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Hostname: serve the network as irc.profullstack.com (new IRC_DOMAIN var,
default irc.<root-of-DOMAIN>). Caddy serves an irc.profullstack.com site so it
gets a Let's Encrypt cert; ergo-refresh-certs copies that into Ergo for 6697.
Needs an A record irc.profullstack.com -> the box (self-signed until it resolves).
Members are OS users (tilde.town model): setup.sh reconciles a real OS account
per member dir (root-side, on each deploy + the 15-min timer; nologin shell, so
identity-only — no shell access). The IRC auth-script now gates on
`getent passwd` with uid>=1000 instead of the member dir, so "OS user" == member.
Premium channels: free members may /join; creating channels is a premium perk.
The ssh irc@ client gains /create #name (premium-gated via ensurePremium): it
joins the fresh channel and registers it with ChanServ as the member's founder.
v1 gate is route-level (operator-only-creation left off); external-client
creation hardening is a follow-up. See docs/irc.md.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds an in-process IRC client (internal/irc) and an `irc@` SSH route that
drops a member straight into the BBS's own Ergo network with no client to
install and no SASL to configure.
- internal/irc/client.go: minimal IRC client (SASL PLAIN, IRCv3 CAP, PING,
PRIVMSG/JOIN/PART/NICK, event stream). Dials Ergo on the loopback
127.0.0.1:6667; presents the member's account name (the SSH key already
proved membership; Ergo's auth-script ignores the passphrase by design).
- internal/irc/tui.go: Bubble Tea TUI over the SSH PTY (mirrors internal/chat)
with /join /part /msg /me /names /nick /help and a current-channel input.
- cmd/agentbbs: handleIRC resolves the member by key (members-only, free) and
runs the client; routed via auth.IsIRCName. AGENTBBS_IRC_ADDR overrides the
target on dev hosts.
- auth: reserve `irc` as a route name.
Unlike copying tor-irc@ (a third-party client in a pod), this runs our own Go
code in-process, so there is no /exec shell-escape surface, and the host
process can reach Ergo's loopback listener directly.
Validated live against a members-only Ergo: non-members are rejected, a member
authenticates via SASL, and channel messages are received.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Provision a self-hosted Ergo IRC network (irc.${DOMAIN}) in setup.sh §9b:
single Go binary on its own ports/user, reusing Caddy's Let's Encrypt cert
for 6697 TLS (refreshed by a timer; self-signed fallback on first boot),
loopback 6667 + a loopback WebSocket fronted by Caddy at wss://${DOMAIN}/irc.
Access is MEMBERS-ONLY: every client must authenticate with SASL, self-service
registration is off, and an auth-script (deploy/ergo/auth-script.sh, installed
as /usr/local/bin/ergo-auth-member) approves a login only if the account name
maps to an existing AgentBBS member home dir under <data>/users/. Passphrase is
ignored — membership (the filesystem dir) is the credential. require-sasl has
no IP exemption so WebSocket clients (which reach Ergo via Caddy from 127.0.0.1)
can't bypass the gate; accounts are auto-created on first successful auth.
Public attack surface is TLS-only (ufw opens 6697; 6667 is loopback). Toggle
with IRC=0. See docs/irc.md.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
