'#!/bin/bash

read -r req || exit 0

cr=$(printf '\r')
req="${req%$cr}"

req="${req//./}"
req="${req//\//}"
req="${req//[!a-zA-Z0-9_]/}"

[ -z "$req" ] && req="index"

f="/home/user/Public/$req"

[ -f "$f" ] && /bin/cat "$f"

exit 0