#!/bin/bash
# Stage a fail2ban ban for later promotion to the shared-bans repo.
# Args: <ip> <jail-name> <match-string> <staging-dir>
set -uo pipefail

IP="$1"
JAIL="$2"
MATCH="$3"
STAGING="$4"

mkdir -p "$STAGING"
ts=$(date -u +%Y-%m-%dT%H:%M:%SZ)
{
  echo "# fail2ban ban at $ts jail=$JAIL match=$MATCH"
  echo "$IP"
} >> "$STAGING/bans.txt"
chmod 0644 "$STAGING/bans.txt"