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mailsystem/DOC/DMARC-Report/dmarc-collect.sh

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#!/usr/bin/env bash
set -euo pipefail
BASE="/var/lib/dmarc"
INBOX="$BASE/reports"
PROC="$BASE/processed"
LOGF="$BASE/logs/collector.log"
umask 027
TMPDIR="$(mktemp -d)"
EML="$TMPDIR/mail.eml"
cat > "$EML"
ripmime --no-nameless --name-by-type --overwrite -i "$EML" -d "$TMPDIR" >>"$LOGF" 2>&1 || true
TODAY="$(date -u +%Y/%m/%d)"
OUTDIR="$INBOX/$TODAY"
mkdir -p "$OUTDIR"
moved=0
shopt -s nullglob
for f in "$TMPDIR"/*; do
case "$f" in
*.xml|*.XML|*.gz|*.zip)
sha="$(sha256sum "$f" | awk '{print $1}')"
base="$(basename "$f")"
dst="$OUTDIR/$(date -u +%Y%m%dT%H%M%SZ)_${sha:0:12}_$base"
mv "$f" "$dst"
echo "$(date -Is) stored $dst" >> "$LOGF"
moved=$((moved+1))
;;
*) : ;;
esac
done
mkdir -p "$PROC"
mv "$EML" "$PROC/$(date -u +%Y%m%dT%H%M%SZ)_mail.eml" || true
rm -rf "$TMPDIR"
if (( moved > 0 )); then
exit 0
else
echo "$(date -Is) no usable attachment in message" >> "$LOGF"
exit 0
fi