#!/bin/bash
# Allstar check connection script by Kyle Yoksh, K0KN
# May 2013
#
# This script allows you to periodically check to see if your node is 
# connected to another Allstar node. This can be run as a cron job every
# so often.
#
# One use for this would be to automatically reconnect a node that 
# periodically becomes disconnected. You could also choose to send an
# email or text message to notify you that the nodes have disconnected.
#
# If the DISABLEFILE below exists, the script will exit immediately. This
# allows a DTMF to be assigned in rpt.conf to stop the nodes from automatically 
# reconnecting. Example:
#
# 123=cmd,touch /etc/asterisk/~chkconn_disable    ; disable chkconn
# 456=cmd,rm -f /etc/asterisk/~chkconn_disable    ; enable chkconn

DISABLEFILE="/etc/asterisk/~chkconn_disable"
LOGFILE="/var/log/asterisk/connectlog"
tempfile=/dev/shm/xchkconn.$1
#
if [ "$1" == "" -o "$2" == "" ] ; then
echo "Usage = chkconn [your node#] [remote node#]"; exit
fi

if [ -f $DISABLEFILE ]
then
echo "Disable flag set -- exiting"
exit
fi

#
asterisk -rx "rpt nodes $1" > $tempfile

grep "$2" $tempfile > /dev/null ||
CONNECTSTATUS=0
#
grep "$2" $tempfile > /dev/null &&
CONNECTSTATUS=1

# If nodes are connected
if [[ "$CONNECTSTATUS" == "1" ]]
then
echo "$1 connected to $2"
# add more commands as you like
fi

# If nodes are not connected
if [[ "$CONNECTSTATUS" == "0" ]]
then
echo "$1 not connected to $2"
# sample command to reconnect remote node if not connected:
asterisk -rx "rpt fun $1 *3$2"
# add log entry
echo $(date) $1 reconnected to $2 via CHKCONN >> $LOGFILE
fi

exit