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#!/bin/bash
#/**
#@file ogagentqueue.cron
#@brief Cronfile to send pending operations to OGAgent.
#warning This file must be executed under system Cron every minute.
#@version 1.1.0 - Initial version.
#@date 2017-10-26
#@author Ramón M. Gómez - Univ. Sevilla
#*/ ##
# Variables.
PROG=$(basename "$0")
OPENGNSYS=${OPENGNSYS:-"/opt/opengnsys"}
SERVERCONF=$OPENGNSYS/etc/ogAdmServer.cfg
LOGFILE=$OPENGNSYS/log/remotepc.log
MYCNF=/tmp/.my.cnf.$$
# Basic error control
if [ ! -r "$SERVERCONF" ]; then
echo "$PROG: Cannot access to configuration file." >&2
exit 2
fi
if ! touch "$LOGFILE"; then
echo "$PROG: Cannot write to log file." >&2
exit 2
fi
# Fetching database access data.
source "$SERVERCONF"
# Composing connection credentils file.
touch $MYCNF
chmod 600 $MYCNF
cat << EOT > $MYCNF
[client]
user=$USUARIO
password=$PASSWORD
EOT
# Trap to delete temporal file if process ends.
trap "rm -f $MYCNF" 0 1 2 3 6 9 15
# Reading pending operations.
mysql --defaults-extra-file="$MYCNF" -D "$CATALOG" -Nse "
SELECT ogagent_queue.id, ogagent_queue.exectime, ogagent_queue.operation,
ordenadores.idordenador, ordenadores.ip, ordenadores.agentkey, remotepc.language
FROM ogagent_queue
JOIN ordenadores ON ogagent_queue.clientid=ordenadores.idordenador
JOIN remotepc ON ogagent_queue.clientid=remotepc.id
WHERE exectime < NOW()
ORDER BY exectime;" | \
while read -r OPERID DATE TIME OPER CLNTID AGNTIP AGNTKEY LANGUAGE; do
# Preparing operation data.
case "$OPER" in
popup-10) # Message: 10 min. before power off.
AGNTURL=https://$AGNTIP:8000/opengnsys/popup
case "$LANGUAGE" in
es) DATA='{"title":"Apagado en 10 min.","message":"Fin del tiempo de acceso remoto.\nEl ordenador se apagará automáticamente dentro de 10 minutos."}' ;;
*) DATA='{"title":"Shutdown after 10 min.","message":"Remote access time is ended.\nComputer will be powered off automaticly after 10 minutes."}' ;;
esac
;;
popup-5) # Message: 5 min. before power off.
AGNTURL=https://$AGNTIP:8000/opengnsys/popup
case "$LANGUAGE" in
es) DATA='{"title":"Apagado en 5 min.","message":"El ordenador se apagará automáticamente dentro de 5 minutos.\nATENCIÓN: Este es el último aviso."}' ;;
*) DATA='{"title":"Shutdown after 5 min.","message":"The computer will be powered off automaticly after 5 minutes.\nATTENTION: This is the last warning."}'
esac
;;
poweroff) # Power off client.
AGNTURL=https://$AGNTIP:8000/opengnsys/poweroff
DATA=
;;
*) # Unknown operation.
AGNTURL=
;;
esac
# Sending operation to OGAgent.
if [ -n "$AGNTURL" ]; then
CODE=$(curl -ksm 1 -w "%{http_code}" -o /dev/null -H "Authorization: $AGNTKEY" ${DATA:+"-d $DATA"} "$AGNTURL")
case "$CODE" in
000) # Client does not respond (may be halted).
;;
200) # Operation sent.
echo "$(date +"%FT%T%z"): $PROG: Operation sent to OGAgent: client=$AGNTIP, oper=$OPER, exectime=\"$DATE $TIME\"" >> $LOGFILE ;;
*) # Operation error.
echo "$(date +"%FT%T%z"): $PROG: Operation error: client=$AGNTIP, oper=$OPER, code=$CODE" >> $LOGFILE ;;
esac
else # Unknown operation.
echo "$(date +"%FT%T%z"): $PROG: Unknown operation: client=$AGNTIP, oper=$OPER" >> $LOGFILE
fi
# Deleting operation from database.
SQL="DELETE FROM ogagent_queue WHERE id='$OPERID';"
[ "$OPER" == "poweroff" ] && SQL="$SQL
UPDATE remotepc
SET reserved = NOW() - INTERVAL 1 SECOND, urllogin=NULL, urllogout=NULL, language=NULL
WHERE id = '$CNLTID';
DELETE FROM acciones
WHERE idordenador = '$CLNTID'
AND descriaccion = 'RemotePC Session';"
mysql --defaults-extra-file="$MYCNF" -D "$CATALOG" -Nse "$SQL"
done
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