6 Commits

Author SHA1 Message Date
c1187a7926 Verify Cloudflare Access's signed token before trusting the proxy
The proxy sign-in believed Cf-Access-Authenticated-User-Email from any
address in trusted_proxies. On Tower that address is the Docker gateway,
so any container there could name itself anyone (docs/sso.md said as
much, and CLAUDE.md listed it as a known gap).

With [web] access_team and access_aud set, a proxied request must also
carry a Cf-Access-Jwt-Assertion that verifies against Cloudflare's keys
(RS256 only, this application's audience, the team's issuer, not
expired), and the name comes from its email claim. The keys are fetched
at start and again when a token names an unseen key, at most once a
minute, so made-up key ids cannot make every request a request to
Cloudflare. While the keys cannot be had, proxied sign-in is refused;
password and token sign-in are unaffected. Both settings empty, nothing
changes.

jsonwebtoken does the checking, on the aws-lc-rs backend already in the
tree through rustls. Tests sign with throwaway keys in tests/data: a
valid token, another app's audience, expired, a forged signature, HS256,
alg none, the refetch limit, and keys that cannot be fetched. Checked
live on a scratch daemon: the header alone and a forged token got 401,
the admin token still signed in.

vouched_name takes the peer and headers rather than the request: a
&Request held across the new await made the auth middleware's future
unsendable, as a body is not Sync.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-19 14:38:25 +00:00
b94a74ef15 Sign out through the proxy when the proxy signed you in
Sign out cleared ipx's cookies and showed its password page, while
Cloudflare Access still vouched for the person: nothing was signed out,
and the page looked like the wrong login. /api/me now says, for someone
the proxy signed in, where to go instead ([web] sign_out_url, which is
/cdn-cgi/access/logout behind Access), and /login sends anyone the proxy
vouches for on to their feeds. The header check both use is one function.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TAC7sLVqfKmY6rsTLXzNgk
2026-09-12 14:10:30 +00:00
9a8a3c696f docs: the ipodderx tile in Authentik's library
A bookmark application with no provider, so ipodderx shows in the library
beside Outline. Recorded with its id and how to delete it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TAC7sLVqfKmY6rsTLXzNgk
2026-09-12 14:03:06 +00:00
bedf64e645 docs/sso.md: the sign-in setup ipodderx.sdf1.net really runs
Authentik is Cloudflare Access's OpenID Connect identity provider, not
something in the request path, and the tunnel's requests reach ipx from
the content_default gateway, 192.168.16.1, not 127.0.0.1. The page is
rewritten from what was measured, with checks for both the trusted and
the refused path, and docs/history.md records every change made to get
there with how to undo it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TAC7sLVqfKmY6rsTLXzNgk
2026-09-12 13:58:18 +00:00
6114add4a6 Documentation: docs/, a changelog, and CLAUDE.md
PROGRESS.md becomes CHANGELOG.md with the finished step lists moved to an
appendix. The README is an overview pointing at docs/: configuration,
cli, users, sso (refreshed for accounts and admin-only settings), and
architecture. CLAUDE.md collects what working on this code actually
requires -- pkill -x not -f, the page being compiled in, the dead columns
on entries, the Playwright worker that deleted its own database.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AdXho5tTkjFLeUXKbEjKBh
2026-09-11 03:00:25 +00:00
4810bb5cfb Make scanning an admin setting, and document SSO
The per-feed schedule picker is gone and global Settings is admin-only,
enforced in the handlers with 403s rather than just hidden: polling costs
bandwidth and affects everyone reading the feed, so it belongs to the
operator. Folders, keywords and per-feed limits stay open to anyone.

docs/sso.md covers Cloudflare Zero Trust and Authentik end to end,
including why trusted_proxies names the proxy and not a subnet.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AdXho5tTkjFLeUXKbEjKBh
2026-09-10 23:16:33 +00:00