Files
selfpost/build/postfix-wrapper.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

34 lines
1.2 KiB
Bash

#!/bin/sh
# Postfix start wrapper: solves the cold-start race where Postfix would try to
# reach the milter sockets before they are listening.
#
# It blocks until BOTH milter sockets — OpenDKIM and the panel's journal-milter
# — are present, then execs `postfix start-fg`. If they are not ready within the
# timeout it exits non-zero WITHOUT starting Postfix, so supervisord/Docker see
# an explicit startup failure instead of a relay running blind.
#
# This handles cold start only. Runtime milter failures after a successful start
# are governed by fail-open (milter_default_action).
set -eu
OPENDKIM_SOCK="${OPENDKIM_SOCKET:-/run/opendkim/opendkim.sock}"
JOURNAL_SOCK="${JOURNAL_MILTER_SOCKET:-/run/selfpost/journal.sock}"
TIMEOUT="${MILTER_WAIT_TIMEOUT:-30}"
INTERVAL=1
elapsed=0
for sock in "$OPENDKIM_SOCK" "$JOURNAL_SOCK"; do
while [ ! -S "$sock" ]; do
if [ "$elapsed" -ge "$TIMEOUT" ]; then
echo "postfix-wrapper: timed out after ${TIMEOUT}s waiting for milter socket $sock" >&2
exit 1
fi
sleep "$INTERVAL"
elapsed=$((elapsed + INTERVAL))
done
echo "postfix-wrapper: milter socket ready: $sock"
done
echo "postfix-wrapper: both milter sockets ready, starting postfix"
exec postfix start-fg