#!/bin/bash

SOURCE_FILE=/home/user/scripts/input.csv
if test -f "$SOURCE_FILE"; then
    echo "$SOURCE_FILE exists"
fi

REPORT_FILE="/home/user/scripts/Report_$(date +"%F_%T").csv"

echo $REPORT_FILE

UNREACHABLE="255"
INVALID_PASSWORD="5"
NO_HOME_DIRECTORY="2"
PASSWORD_EXPIRED="1"
FLAVOUR=""
HOSTNAME=""

touch $REPORT_FILE

       echo "Input Hostname,\
Input IP,\
SSH Access,\
Tag,\
OS Type,\
Hostname,\
IP Adress,\
Uptime,\
ACTIVE KERNEL,\
INACTIVE KERNELS"  >> $REPORT_FILE

exec < $SOURCE_FILE || exit 1
read header # read (and ignore) the first line
while IFS=, read -r InputHost\
InputIP\
Tag\
UserAgentTag\
ResourceProvisioner\
OSType\
OSVersion\
OSDetail\
Location\
PowerState\
; do
        sshpass -p '********' ssh -qno StrictHostKeyChecking=no -o ConnectTimeout=1 userlogin@$InputIP 'ls -l /home/userlogin >/dev/null 2>&1' > /dev/null 2>&1
       
        status="$(echo $?)"
       
        echo "processing $InputHost"
       
        FLAVOUR=$(sshpass -p '********' ssh -qno StrictHostKeyChecking=no -o ConnectTimeout=1 userlogin@$InputIP 'cat /etc/redhat-release 2>/dev/null || lsb_release -a 2>/dev/null | grep Description | cut -f2')
       
        HOSTNAME=$(sshpass -p '********' ssh -qno StrictHostKeyChecking=no -o ConnectTimeout=1 userlogin@$InputIP 'hostname')

        IPADDRESS=$(sshpass -p '********' ssh -qno StrictHostKeyChecking=no -o ConnectTimeout=1 userlogin@$InputIP 'hostname -I')
       
        ACTIVE_KERNEL=$(sshpass -p '********' ssh -qno StrictHostKeyChecking=no -o ConnectTimeout=1 userlogin@$InputIP 'uname -r')

        INACTIVE_KERNEL=$(sshpass -p '********' ssh -qno StrictHostKeyChecking=no -o ConnectTimeout=1 userlogin@$InputIP 'rpm -qa | grep '^kernel-[0-9]' |grep -vE `uname -r`')
       
        UPTIME=$(sshpass -p '********' ssh -qno StrictHostKeyChecking=no -o ConnectTimeout=1 userlogin@$InputIP 'uptime | cut -d "," -f 1')


        if [ "$status" == "$UNREACHABLE" ]
        then
                echo "$InputHost,\
                $InputIP,\
                cannot connect,\
                $Tag,\
                $FLAVOUR,\
                $HOSTNAME,\
                $IPADDRESS,\
                $UPTIME,\
                "$ACTIVE_KERNEL,\
                $INACTIVE_KERNEL >> $REPORT_FILE
        elif [ "$status" == "$INVALID_PASSWORD" ]
        then
                echo "$InputHost,\
                $InputIP,\
                invalid account access,\
                $Tag,\
                $FLAVOUR,\
                $HOSTNAME,\
                $IPADDRESS,\
                $UPTIME,\
                "$ACTIVE_KERNEL,\
                $INACTIVE_KERNEL >> $REPORT_FILE
        elif [ "$status" == "$NO_HOME_DIRECTORY" ]
        then
                echo "$InputHost,\
                $Tag,\
                $FLAVOUR,\
                $HOSTNAME,\
                $IPADDRESS,\
                $UPTIME,\
                "$ACTIVE_KERNEL,\
                $INACTIVE_KERNEL >> $REPORT_FILE

        elif [ "$status" == "$PASSWORD_EXPIRED" ]
        then
                echo "$InputHost,\
                $InputIP,\
                password expired,\
                $Tag,\
                $FLAVOUR,\
                $HOSTNAME,\
                $IPADDRESS,\
                $UPTIME,\
                "$ACTIVE_KERNEL,\
                $INACTIVE_KERNEL >> $REPORT_FILE
        else
             echo "$InputHost,\
                $InputIP,\
                successful ssh access,\
                $Tag,\
                $FLAVOUR,\
                $HOSTNAME,\
                $IPADDRESS,\
                $UPTIME,\
                "$ACTIVE_KERNEL,\
                $INACTIVE_KERNEL >> $REPORT_FILE

        fi
done < $SOURCE_FILE