#!/bin/sh
# mx      : Postfix -> pipe -> mas-gateway -> capture (JSONL evidence) -> ticket service
# statute : static /.well-known/mas only (the only thing exposed over HTTPS)
set -e
DOMAIN="${MAS_DOMAIN:-mas.coulomb.social}"
STATUTE_DIR="/app/examples/statute/$DOMAIN"

if [ "$1" = "statute" ]; then
  exec python3 /app/examples/statute/serve.py "$STATUTE_DIR" --host 0.0.0.0 --port 8080
fi

cat > /usr/local/bin/mas-gateway <<SH
#!/bin/sh
exec env PYTHONPATH=/app python3 -m mas_gateway.main "\$@"
SH
chmod +x /usr/local/bin/mas-gateway

# The MAS setup (relay control, no rewriting, mas pipe, outbound relay, sender
# authentication) is the integration profile; see integrations/postfix/.
# Port 25 out is blocked on railiance01, so replies go through an
# authenticated submission relay, and only when its credentials are mounted.
RELAY_ARGS=""
if [ -n "$MAS_RELAY" ] && [ -s /etc/mas-relay/username ]; then
  RELAY_ARGS="--relay $MAS_RELAY --relay-credentials /etc/mas-relay"
fi
/app/integrations/postfix/install.sh --domain "$DOMAIN" \
  --statute "$STATUTE_DIR/.well-known/mas" --app-url http://127.0.0.1:8024/mas-events --auth \
  $RELAY_ARGS

# Deployment specifics.
postconf -e \
  "maillog_file=/dev/stdout" "message_size_limit=10240000" \
  "smtpd_banner=\$myhostname ESMTP MAS live test" \
  "smtpd_tls_security_level=may" \
  "smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem" \
  "smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key" \
  "inet_protocols=ipv4" "compatibility_level=3.6"
# start-fg does not populate the chroot (no resolv.conf), so DNS fails inside
# it: client rDNS shows "unknown" and a relayhost would not resolve. The
# container already isolates Postfix, so run the daemons unchrooted.
postconf -F '*/*/chroot = n'

# The ticket service sends replies only with a relay, capped at MAS_MAX_SENT.
SMTP_ARG=""
if [ -n "$MAS_RELAY" ] && [ -s /etc/mas-relay/username ]; then
  SMTP_ARG="--smtp 127.0.0.1:25 --max-sent ${MAS_MAX_SENT:-300} --require-dmarc-pass"
fi

# Milters in the foreground: daemonized, OpenDKIM died on its first
# connection in this container.
opendkim -f -x /etc/opendkim.conf &
opendmarc -f -c /etc/opendmarc.conf &

mkdir -p /var/lib/mas && chown mas /var/lib/mas
# Replies are only recorded in the outbox unless a relay is configured above.
su -s /bin/sh mas -c "python3 /app/examples/ticket_service/ticket_service.py \
  --db /var/lib/mas/tickets.sqlite3 --listen 127.0.0.1:8025 $SMTP_ARG" &
su -s /bin/sh mas -c "python3 /app/capture.py http://127.0.0.1:8025/mas-events \
  /var/lib/mas/events.jsonl 127.0.0.1" &
exec postfix start-fg