#!/bin/bash
#
# junkshow: junkview driver 2005-10-24, updated 2008-09-01
#
# script to run junkview to produce a report for the last 24 (default) 
#  hours for inclusion on we site
#
# Copyright (C) 2005-2008 Grant Coady <grant@bugsplatter.id.au>
#
#	This program is free software; you can redistribute it and/or 
#	modify it under the terms of the GNU General Public License 
#	as published by the Free Software Foundation; 
#		version 2 of the License.
#
#	This program is distributed in the hope that it will be useful,
#	but WITHOUT ANY WARRANTY; without even the implied warranty of
#	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#	GNU General Public License:
#		http://www.gnu.org/licenses/licenses.html#GPL
#
# Home site: http://bugsplatter.id.au/junkshow/
#
# this program is run as cron job, it may need changing to suit your site,
#  written for a slackware system. 
#
#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
# 2008-09-01
#  some mods for operation with pak-web-site, filenames and SSI marker
#
# 2008-08-13
#  convert to new ip2cn-server operation, removing old access locking
#
# 2008-06-06
#  remove multiple outputs and generate only the last 24 hours report
#
# 2006-09-04
#  new timebased decision on reading prior logfile
#
#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
# user variables
#
report_hours=24				# report most recent number of hours
report_owner="grant:wheel"		# script run by root, chown output

FILEPATH="/home/web/bugsplatter/junkshow"
FILENAME="$FILEPATH/junkdata.text"	# where to drop report

# discover code path
codepath=$(awk '/^codepath/ {print $2; exit}' /etc/junkview.conf)

JUNKVIEW="$codepath/bin/junkview"
LOG="messages"				# file that gets iptables log events

OPTIONS="verbose=1 "			# options passed to junkview

#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
# output file must carry a SSI marker so it can be detected by the 
#  pak-web-site script as an SSI include file to be inserted prior 
#  to compressing the caller's file -- marker shall be on first line
#
printf "%s\n%s\n" "<!-- ssi-file -->" "<pre>" > $FILENAME

#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
# previous logfile may be messages.1 or messages.1.gz, choose prior 
#  logfile name and gawk input pipe method
#
log_read=""
log_file=""
if [ -r /var/log/$LOG.1.gz ]		# previous logfile is compressed
then
	log_file="/var/log/$LOG.1.gz"
	log_read="zcat"
	
elif [ -r /var/log/$LOG.1 ]		# previous logfile is not compressed
then
	log_file="/var/log/$LOG.1"
	log_read="cat"
fi

#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
# get datestamp of prior logfile and check if it is with the last 24 hours, 
#  in which case we shall have to read the previous logfile to get a full 
#  previous n hours' log events to build report from
#
now_stamp=$(date +%s)
log_stamp=$now_stamp

[ -r $log_file ] && log_stamp=$(stat --format=%Z $log_file)

start=$(( now_stamp - (report_hours * 3600) ))

if [ $start -lt $log_stamp ]
then
	$log_read $log_file | $JUNKVIEW -v hours=$report_hours \
			$OPTIONS - /var/log/$LOG >> $FILENAME
else
	$JUNKVIEW -v hours=$report_hours $OPTIONS /var/log/$LOG >> $FILENAME
fi

echo "</pre>" >> $FILENAME
chown $report_owner $FILENAME

#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
# run the .html file compressor
#
echo $(date +%F.%T) > /var/log/junkshow.log
cd $FILEPATH
/usr/local/bin/pak-web -d >> /var/log/junkshow.log
chown $report_owner index.html.gz
# end