#!/bin/bash

###################################
#Name: Lab2Check1.sh
#Purpose: Script that checks the first part of OPS235 - Lab 2 (Seneca College)
#Written by: Philip Ianni
#Last Edited: 18 January 2016
##################################

#Ensure root

if [[ $(whoami) != "root" ]] 

	then

	echo "Please run this as root!"

	exit 1

fi

#List required software 

RequiredSoftware=("qemu-kvm" "qemu-img" "virt-manager" "libvirt" "libvirt-python" "python-virtinst" "libvirt-client" "virt-install" "virt-viewer" "bridge-utils" "iptables-services")

#Grab list of installed software, store in variable. We do this to reduce overhead from system continously executing rpm command

InstalledSoftware=$(rpm -qa)

#Foreach loop to test if software is actually installed, exit with message at end of loop if all not required

for package in ${RequiredSoftware[@]}

	do

	echo "$InstalledSoftware" | grep -q $package 

        if [[ $? -ne 0 ]]  

		then 

		MissingSoftware=("${MissingSoftware[@]}" "$package")

        fi 

        done

#Check if missing software variable contains data, if so echo and exit 

if [[ -n ${MissingSoftware[@]} ]] 

	then 

	echo "It seems you are missing the following yum package(s)"

	echo "${MissingSoftware[@]}"

        # Uncomment this later	exit 2

fi 

#Check firewall/iptables status

FirewalldStatus=$(systemctl status firewalld)

IptablesStatus=$(systemctl status iptables)

if ! [[ "$FirewalldStatus" =~ masked ]] 

	then 

	echo "The build-in firewalld service is not masked. Hint: systemctl ... ..." 

	exit 2 

elif ! [[ "$FirewalldStatus" =~ inactive ]]

	then 

	echo "The build-in firewalld service is not stop. Hint: systemctl ... ..." 

	exit 3 

elif ! [[ "$IptablesStatus" =~ loaded ]] 

	then 

	echo "The iptables service is not loaded. Hint: systemctl ... ..."

	exit 4

elif ! [[ "$IptablesStatus" =~ Active:\ active ]]  
 
	then 

	echo "The iptables service is not active. Hint: systemctl ... ..." 

	exit 5 

elif ! [[ "$IptablesStatus" =~ enabled ]] 

	then 

	echo "The iptables service is not enabled. Hint: systemctl ... ..." 

	exit 6 

fi