#!/bin/bash

# Description   :   This script removes ghostScript package from the machine using 'apt-get' command.
#
# Returns       :   0 if successfully removed.
#                   2 if not successful.
#
# Usage         :   sh GhostscriptVulnerabilityForRpm.sh detect - for only detecting the ghostscript 
#                   sh GhostscriptVulnerabilityForRpm.sh - for only detecting and removing the ghostscript
#
# Example       :   sh GhostscriptVulnerabilityForRpm.sh detect
#                   sh GhostscriptVulnerabilityForRpm.sh
#
# Maintainer    :   ManageEngine Desktop Central <desktopcentral-support@manageengine.com>


DetectOrDeploy="$1"

# errorCodes
# 0 for success
# 2 for package uninstall failure
errorCode=0

if [ "$DetectOrDeploy" = "detect" ]
then
	RPM=$(rpm -qi ghostscript)
	X=`echo $?`
	CHECK="0"
	if [ $X -eq $CHECK ]
	then
		echo "Package GhostScript exist!"
	else
		echo "Package GhostScript does not exist!"
		errorCode=2
	fi
else
	# check whether ghostscript package exists and then proceed with removal
	RPM=$(rpm -qi ghostscript)
	X=`echo $?`
	CHECK="0"
	if [ $X -eq $CHECK ]
	then
		YUM=$(yum --assumeyes remove ghostscript)

		Y=`echo $?`
		# check whether package is removed successfully
		if [ $Y -eq $CHECK ]
		then
			echo "Package GhostScript removed successfully."
		else 
			errorCode=2
			echo "Error while removing Package GhostScript."
		fi
	else
		echo "Package GhostScript does not exist!"
	fi
fi

errorFunc(){
	return $errorCode
}

errorFunc