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#!/bin/sh -e
# This script sends an email containing a firewall activity report during
# the last day.
# I choose to have an output type which is text, maybe I can add human, but I
# don't think that it would be a good idea to add something else.
#This script was written by Jean-Michel Kelbert <kelbert@debian.org>, for
#the Debian project (but may be used by others).
export LC_ALL="C"
WFLOGS=/usr/bin/wflogs
CONFIG=/etc/default/wflogs
test -x $WFLOGS || exit 0
test -r $CONFIG || exit 0
. $CONFIG
test -r $INPUT_FILE || exit 0
test "$EMAIL_SEND" = "true" || exit 0
if [ -z "$INPUT_TYPE" ]; then
INPUT_TYPE="netfilter"
fi
INPUT_TYPE=`echo $INPUT_TYPE | tr -d " "`
# wflogs options.
case "$EMAIL_SORT" in
"Yes default order")
OPTIONS="--sort"
;;
"Yes custom order")
OPTIONS="--sort=$EMAIL_SORT_OPTIONS"
;;
esac
case "$EMAIL_OUTPUT_WHOIS" in
"no whois lookups")
EMAIL_OUTPUT_WHOIS=0
;;
"always do whois lookups")
EMAIL_OUTPUT_WHOIS=1
;;
"do whois lookups only if no DNS name could be found")
EMAIL_OUTPUT_WHOIS=2
;;
esac
OPTIONS="$OPTIONS --strict-parsing=loose \
-i $INPUT_TYPE -o text --duration=$EMAIL_OUTPUT_DURATION \
--summary=$EMAIL_OUTPUT_SUMMARY --whois_lookup=$EMAIL_OUTPUT_WHOIS \
--src_mac=$EMAIL_OUTPUT_MAC --dst_mac=$EMAIL_OUTPUT_MAC \
--mac_vendor=$EMAIL_OUTPUT_MAC_VENDOR"
if [ "$EMAIL_OBFUSCATE" != "nothing" ]; then
OPTIONS="--obfuscate=$EMAIL_OBFUSCATE $OPTIONS"
fi
FILTER="\$start_time >= [yesterday]"
# Send the mail.
eval "$WFLOGS -f '$FILTER' $OPTIONS -- $INPUT_FILE | mail $EMAIL_ADDRESS -s 'Wflogs report since `date +"%D" -d "yesterday"`'"
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