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archy/scripts
archipelagoandClaude Opus 5 aab74127f5
Demo images / Build & push demo images (push) Failing after 2m19s
feat(tls): per-node certificate authority + Settings install flow
The node served a bare self-signed leaf, so a browser exception had to be
granted per ORIGIN — scheme + host + port. The dashboard on :443 and an app
on :8334 are different origins, and a certificate interstitial CANNOT be
accepted inside an iframe, so a gated app embedded over HTTPS could never
render no matter how many warnings the user clicked through. (Mixed content
blocks the plain-HTTP variant first, before the SameSite cookie question the
symptom was originally filed under.)

A CA fixes it structurally: ports are not part of a certificate's identity, so
one leaf with the right SANs covers every port on the host, and one installed
CA trusts them all.

- scripts/setup-node-ca.sh generates the CA (4096-bit, pathlen:0, keyCertSign
  only) and issues a 397-day leaf covering archipelago.local, the hostname, the
  Tailscale MagicDNS name and every global address the host holds. Idempotent —
  re-running reuses the CA and only reissues the leaf, so gaining an address
  does not invalidate copies users already installed. --force-ca is the
  deliberate escape hatch and says what it costs.
- nginx serves the public CA at /ca.crt on both schemes, unauthenticated by
  design: a device fetches it before it can validate the node, so gating it
  behind HTTPS or a login would be a chicken-and-egg.
- Settings → System shows the fingerprint and per-platform install steps.
  crypto.subtle does not exist outside a secure context — precisely the case
  this feature exists to fix — so an HTTP dashboard gets the openssl command
  to verify by hand instead of a blank field.

Verified locally: chain validates, key pairs with the leaf, CA:TRUE/CA:FALSE
are correct, keys are 0600. Two TLS servers on different ports both verify
(ssl_verify_result=0) against the CA alone and are rejected without it — the
one-CA-covers-every-port claim, tested rather than assumed.

Not yet wired: app ports still serve plain HTTP. Putting TLS on them is the
next step and is what actually closes the iframe-login bug.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-06 14:38:30 -04:00
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2026-05-06 09:23:57 -04:00