#!/bin/sh
# **********************************************************************
# Pandora Agent 
# HPUX Version (v11)
# (c) Sancho Lerena 2003-2005, slerena@gmail.com
# Este codigo esta licenciado bajo la licencia GPL 2.0
# This code is licenced under GPL 2.0 licence.
# **********************************************************************

AGENT_VERSION=1.1

OLDIFS=$IFS
# Stupid trick to use IFS in Unix ... doesnt work standard $'\n' :-?
NEWIFS="
"

# Begin cycle for adquire primary config tokens
TIMESTAMP=`date +"%Y/%m/%d %H:%M:%S"`

if [ -z "$1" ]
then
        echo " "
        echo "FATAL ERROR: I need an argument to PANDORA AGENT home path"
        echo " "
        echo " example:   /usr/share/pandora_ng/pandora_agent /usr/share/pandora_ng  "
        echo " "
        exit
else
        PANDORA_HOME=$1
fi

if [ -z "`cat $PANDORA_HOME/pandora_agent.conf`" ]
then
        echo " "
        echo "FATAL ERROR: Cannot load $PANDORA_HOME/pandora_agent.conf"
        echo " "
        exit
fi

echo "$TIMESTAMP - Reading general config parameters from .conf file" >> $PANDORA_HOME/pandora.log

IFS=$NEWIFS
# Default values for Debug mode and Checksum mode
DEBUG_MODE=0
CHECKSUM_MODE=1

for a in `cat $PANDORA_HOME/pandora_agent.conf | grep -v "^#" | grep -v "^module" `
do
        a=`echo $a | tr -s " " " "`
        # Get general configuration parameters from config file
        if [ ! -z "`echo $a | grep '^server_ip'`" ]
        then
                SERVER_IP=`echo $a | awk '{ print $2 }' `
                echo "$TIMESTAMP - [SETUP] - Server IP Address is $SERVER_IP" >> $PANDORA_HOME/pandora.log
        fi
        if [ ! -z "`echo $a | grep '^server_path'`" ]
        then
                SERVER_PATH=`echo $a | awk '{ print $2 }' `
                echo "$TIMESTAMP - [SETUP] - Server Path is $SERVER_PATH" >> $PANDORA_HOME/pandora.log
        fi
        if [ ! -z "`echo $a | grep '^temporal'`" ]
        then
                TEMP=`echo $a | awk '{ print $2 }' `
                echo "$TIMESTAMP - [SETUP] - Temporal Path is $TEMP" >> $PANDORA_HOME/pandora.log
        fi
        if [ ! -z "`echo $a | grep '^interval'`" ]
        then
                INTERVAL=`echo $a | awk '{ print $2 }' `
                echo "$TIMESTAMP - [SETUP] - Interval is $INTERVAL seconds" >> $PANDORA_HOME/pandora.log
        fi
        if [ ! -z "`echo $a | grep '^agent_name'`" ]
                then
                NOMBRE_HOST=`echo $a | awk '{ print $2 }'`
                echo "$TIMESTAMP - [SETUP] - Agent name is $NOMBRE_HOST " >> $PANDORA_HOME/pandora.log
        fi
        if [ ! -z "`echo $a | grep '^debug'`" ]
                then
                DEBUG_MODE=`echo $a | awk '{ print $2 }'`
                echo "$TIMESTAMP - [SETUP] - Debug mode is $DEBUG_MODE " >> $PANDORA_HOME/pandora.log
        fi
        if [ ! -z "`echo $a | grep '^checksum'`" ]
                then
                CHECKSUM_MODE=`echo $a | awk '{ print $2 }'`
                echo "$TIMESTAMP - [SETUP] - Checksum mode is $CHECKSUM_MODE " >> $PANDORA_HOME/pandora.log
        fi
done

# MAIN Program loop begin
# OS Data
OS_VERSION=`uname -r`
OS_NAME=`uname -s`
# Hostname
if [ -z "$NOMBRE_HOST" ]
then
        NOMBRE_HOST=`/bin/hostname`
fi
CONTADOR=0

while [ "1" = "1" ]
do
        CONTADOR=`expr $CONTADOR + 1`
        # Fecha y hora. Se genera un serial (numero de segundos desde 1970) para cada paquete generado.
        TIMESTAMP=`date +"%Y/%m/%d %H:%M:%S"`
        SERIAL=$CONTADOR

        # Nombre de los archivos
        DATA=$TEMP/$NOMBRE_HOST.$SERIAL.data
        CHECKSUM=$TEMP/$NOMBRE_HOST.$SERIAL.checksum
        PANDORA_FILES="$TEMP/$NOMBRE_HOST.$SERIAL.*"

        # Makes data packet
        echo "<agent_data os_name='$OS_NAME' os_version='$OS_VERSION' interval='$INTERVAL' version='$AGENT_VERSION' timestamp='$TIMESTAMP' agent_name='$NOMBRE_HOST'>" > $DATA
        if [ "$DEBUG_MODE" = "1" ]
        then
                echo "$TIMESTAMP - Reading module adquisition data from .conf file" >> $PANDORA_HOME/pandora.log
        fi
        for a in `cat $PANDORA_HOME/pandora_agent.conf | grep -v "^#" | grep "^module" `
        do
                a=`echo $a | tr -s " " " "`

                if [ ! -z "`echo $a | grep '^module_exec'`" ]
                then
                   execution=`echo $a | cut -c 13-`
                   res=`eval $execution`
                   if [ -z "$flux_string" ]
                   then
                        res=`eval expr $res`
                   fi
                   echo "<data>$res</data>" >> $DATA
                fi

                if [ ! -z "`echo $a | grep '^module_name'`" ]
                then
                   name=`echo $a | cut -c 13-`
                   echo "<name>$name</name>" >> $DATA
                fi

                if [ ! -z "`echo $a | grep '^module_begin'`" ]
                then
                   echo "<module>" >> $DATA
                fi

                if [ ! -z "`echo $a | grep '^module_max' `" ]
                then
                   max=`echo $a | awk '{ print $2 }' `
                   echo "<max>$max</max>" >> $DATA
                fi

                if [ ! -z "`echo $a | grep '^module_min'`" ]
                then
                   min=`echo $a | awk '{ print $2 }' `
                   echo "<min>$min</min>" >> $DATA
                fi

                if [ ! -z "`echo $a | grep '^module_description'`" ]
                then
                   desc=`echo $a | cut -c 20- `
                   echo "<description>$desc</description>" >> $DATA
                fi

                if [ ! -z "`echo $a | grep '^module_end'`" ]
                then
                   echo "</module>" >> $DATA
                fi

                if [ ! -z "`echo $a | grep '^module_type'`" ]
                then
                   mtype=`echo $a | cut -c 13-`
                   if [ ! -z "`echo $mtype | grep 'generic_data_string'`" ]
                   then
                        flux_string=1
                   else
                        flux_string=0
                        unset flux_string
                   fi
                   echo "<type>$mtype</type>" >> $DATA
                fi
        done

        # Call for user-defined script for data adquisition

        if [ -f "$PANDORA_HOME/pandora_user.conf" ]
        then
           /bin/sh $PANDORA_HOME/pandora_user.conf >> $DATA
        fi

        # Finish data packet
        echo "</agent_data>" >> $DATA
        if [ "$DEBUG_MODE" = "1" ]
        then
                echo "$TIMESTAMP - Finish writing XML $DATA" >> $PANDORA_HOME/pandora.log
        fi

        # Calculate Checksum and prepare MD5 file
        if [ "$CHECKSUM_MODE" = "1" ]
        then
                CHECKSUM_DATA=`cat $DATA | $PANDORA_HOME/util/md5 `
        else
                CHECKSUM_DATA="No valid checksum"
        fi
        echo $CHECKSUM_DATA $DATA> $CHECKSUM
        # Send packets to server and detele it
        scp $PANDORA_FILES pandora@$SERVER_IP:$SERVER_PATH > /dev/null 2> /dev/null
        if [ "$DEBUG_MODE" = "1" ]
        then
                echo "$TIMESTAMP - Copying $PANDORA_FILES to $SERVER_IP:$SERVER_PATH" >> $PANDORA_HOME/pandora.log
                echo "Pandora Agent in debug mode. Exitting now"
                exit
        fi

        rm -f $PANDORA_FILES> /dev/null
        sleep $INTERVAL
done
# forever!