#!/bin/sh
#
# /usr/local/sbin/localshowmailreceived
# Copyright 2007-2008 Jonas Smedegaard <dr@jones.dk>
#
# $Id: localshowmailreceived,v 1.4 2008-02-03 20:10:45 jonas Exp $
#
# List recently received emails
#
# TODO: Handle other patterns than AMaViS
#

input="${input:-user}"
output="${output:-shortline}"
logfilecount="${logfilecount:-1}"
pattern="${pattern:-user_amavis}"

mailname="$(cat /etc/mailname | head -n 1)"

sed_longline='s/^\(.\{15\}\) [^:]*: /\1 /'
sed_time='s/^\(.\{15\}\) .*$/\1 /'

case $pattern in
    user_amavis)
	# AMaViSd new
	egrep_before=' -> <'
	egrep_after='@'"$mailname"
	sed_shortline='s/^\(.\{15\}\) [^)]*) \([^,]*\), [^]]*] \([^ ]*\) -> .*Message-ID: \([^>,]*>\?\).*/\1 \3 (\4) \2/'
	sed_msgid='s/^.*Message-ID: //;s/: .*$//'
	;;
    *)
	echo >&2 "ERROR: unknwon pattern \"$pattern\""
	exit 1
	;;
esac

case $output in
    shortline)
	sedstring="$sed_shortline"
	;;
    longline)
	sedstring="$sed_longline"
	;;
    msgid)
	sedstring="$sed_msgid"
	;;
    *)
	echo >&2 "ERROR: unknwon output \"$output\""
	exit 1
	;;
esac

localuser="$1"

find /var/log -name 'mail.log*' | sort -nr -t. -k3 | tail -n "$logfilecount" | xargs zcat -f \
	| egrep -- "$egrep_before$localuser$egrep_after" \
	| sed "$sedstring"