#!/bin/sh 

##[ ./ldebug.sh
##[
##[ A simple information gathering tool for sharing system info with others
##[ on forums, email etc...

##[ vim settings
##[
##[ set tabstop=4

# Global Variables
##############################################
MINARGS=1
US_DATE=$(date +%d%m%Y)
EU_DATE=$(date +%Y%m%d)
TMPFILE=$(mktemp /tmp/myfile.XXXXX)

# Functions
##############################################
output(){
# print out a section header
	printf "\n\n"
	printf "%s #################### \n" "$1"
}

obfuscate(){
	local tmp=$(mktemp /tmp/ldebug-obf.XXXXX)
	local ips
	local uniqips
	local count=0

	printf "%s" "$1" > $tmp

	ips=$(printf "%s" "$1" | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*')
	uniqips=$(printf "%s \n" "$ips" | sort | uniq)

	printf "%s" "$uniqips" | while IFS=" " read -r ip; do
		sed -i "s/$ip/IP-ADD-0$count/g" $tmp
		((count++))
	done

	cat "$tmp"
	rm -f "$tmp"

# To do:
# take public hostnames and obfuscate to something like HOST01, HOST02 etc..
}

get_general(){
# general system information
	output VERSION
	cat /proc/version
	output Memory
	free -m
	vmstat
	output CPU
	grep '^proc\|^model\|^cpu' /proc/cpuinfo
	cat /proc/loadavg
}

get_hardware(){
# general hardware information
	output Modules
	lsmod
	output PCI
	lspci
	output USB
	lsusb
}

get_storage(){
# general storage information
	output DF
	df -h
	output FSTAB
	cat /etc/fstab	
	output MOUNTS
	cat /proc/mounts
	output BLKID
	blkid
	output LSBLK
	lsblk
}

get_lvm(){
# more specific LVM related information
	output PVDISPLAY
	pvdisplay
	output PVS
	pvs
	output LVS
	lvs
	output VGS
	vgs
}

get_fw(){
# firewall information (iptables, firewalld)
	output IPTABLES STATUS
	systemctl status iptables
	service iptables status
	output FIREWALLD STATUS
	systemctl status firewalld
	firewall-cmd --state
	output IPTABLES RULES
	iptables -L
	output FIREWALLD RULES
	firewall-cmd --list-all
}

get_network(){
# network information
	output ADAPTERS
	ip link
	output IPADDRESSES
	ip addr
	output ROUTING
	ip route
	output LISTENING
	netstat -tulpn
}

usage(){
# print out a simple usage/help menu
cat << EOF
	$0 [OPTIONS] 

	EXAMPLE:
	ldebug.sh -s
	print information about BASIC system storage

	OPTIONS:
	-f		get firewall info
	-g		get general info (ram,cpu,etc)
	-h              display script help
	-H		get general hardware info (modules,pci,usb)
	-l		get info about LVM system storage
	-n		get networking info
	-s              get info about BASIC system storage
	-Z		send to pastebin-like site and get shareable URL
EOF
}

# currently only uid 0 (root) is allowed to run this script
if [ "$(id -u)" -ne "0" ]; then
	printf "script must be run as root \n" 1>&2
	exit
fi

# if args empty then display usage and exit
if [ $# -lt $MINARGS ]; then 
	usage
fi

# argument handling - standard examples
while getopts ":fghHlnsZ" opt; do
	case $opt in
	f)
	firewall=$(get_fw)
	obfuscate "$firewall" | tee -a "$TMPFILE"
	;;
	g)
	get_general | tee -a "$TMPFILE"
	;;
	h)  
	usage 
	;;
	H)
	get_hardware | tee -a "$TMPFILE"
	;;
	l)
	get_lvm | tee -a "$TMPFILE"
	;;
	n)
	network=$(get_network)
	obfuscate "$network" | tee -a "$TMPFILE"
	;;
	s)  
	get_storage | tee -a "$TMPFILE"
	;;
	Z)
	printf "\n\n\nCopy, Paste and Share this pastebin URL: \n"
	cat "$TMPFILE" | curl -F 'sprunge=<-' http://sprunge.us
	;;
	\?) 
	printf "unknown arg: -%s \n" "$OPTARG" 
	;;
	esac
done

printf "\n\n"
printf "Output Date============== \n"
printf "US Date: %s \n" "$US_DATE"
printf "EU Date: %s \n" "$EU_DATE"

# clean temp file
rm -f "$TMPFILE"