Files
selfpost/deploy/traefik/extract-cert.sh
T
mixandClaude Opus 5 ab2cd885c4
test / test (push) Has been cancelled
review follow-up: close the gaps left by the phase1-6 pass
Verified the tree against docs/plans/code-review-2026-08.md and finished the
tasks that were only partly done, plus two defects the pass introduced.

- bcrypt: the setup account was still hashed at DefaultCost (10). The work
  factor now has one definition, auth.BcryptCost = 12, used everywhere.
- rate limiter: protecting blocked buckets from eviction was unbounded — an
  attacker with many source addresses could grow the map by making each one
  fail its way to blocked. Blocked buckets are now evicted past
  maxBuckets * 4, nearest expiry first, logged once per window. Tests cover
  both halves.
- postqueue: the 5s timeout left the output size unbounded; reads are now
  capped at 4 MiB and report truncation.
- spec references: the ~76 `spec N` citations CHANGELOG [0.5.0] claimed were
  gone are removed from build/, deploy/, the first two migrations and the
  release workflow, with the affected comment paragraphs re-wrapped. Comments
  only; shell/YAML/SQL syntax re-checked.
- schema-migrations.md: schema section was headed v9 with the chain at v10,
  and three links pointed at deleted plan files.
- internal/configsafe: the shared empty/forbidden-character check behind the
  OpenDKIM and Postfix config writers; each writer keeps its own forbidden set.
- dropped the parseDomainRateLimitForm/parseAppRateLimitForm pass-throughs
  left behind by the parser merge (only their own tests still called them).
- plan doc now carries a status table: what shipped, what was already in
  place, what was declined (//go:build linux for the /proc reader) and the
  open CSRF-token question.

Not done, each its own phase: typed template data structs, log/slog, DMARC
service and handler tests, error-page/corrupted-backup tests, backup re-auth.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-19 20:03:05 +03:00

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#!/bin/sh
# Extracts a PEM cert/key pair for one domain out of Traefik's acme.json —
# Traefik keeps its certificates there, so a PEM extraction step is required.
# Run this on the host, after Traefik has issued or renewed the certificate, and
# again on a schedule (cron/systemd timer) since acme.json is not itself watched
# by SelfPost/Postfix.
#
# Requires jq. Usage: ./extract-cert.sh <acme.json path> <domain> <output dir>
set -eu
ACME_JSON="${1:?path to acme.json}"
DOMAIN="${2:?domain name, e.g. mail.example.com}"
OUT_DIR="${3:?output directory, e.g. ./extracted-certs}"
mkdir -p "$OUT_DIR"
jq -r --arg domain "$DOMAIN" '
.le.Certificates[]
| select(.domain.main == $domain)
| .certificate' "$ACME_JSON" | base64 -d > "$OUT_DIR/fullchain.pem"
jq -r --arg domain "$DOMAIN" '
.le.Certificates[]
| select(.domain.main == $domain)
| .key' "$ACME_JSON" | base64 -d > "$OUT_DIR/privkey.pem"
chmod 0640 "$OUT_DIR/fullchain.pem" "$OUT_DIR/privkey.pem"
echo "extracted $DOMAIN to $OUT_DIR/{fullchain,privkey}.pem"