pivpn/scripts/openvpn/clientStat.sh

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#!/bin/bash
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# PiVPN: client status script
STATUS_LOG="/var/log/openvpn-status.log"
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err() {
echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
}
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scriptusage() {
echo "::: List any connected clients to the server"
echo ":::"
echo "::: Usage: pivpn <-c|clients> [-b|bytes]"
echo ":::"
echo "::: Commands:"
echo "::: [none] List clients with human readable format"
echo "::: -b, bytes List clients with dotted decimal notation"
echo "::: -h, help Show this usage dialog"
}
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hr() {
numfmt --to=iec-i --suffix=B "${1}"
}
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listClients() {
printf ": NOTE : The output below is NOT real-time!\n"
printf ": : It may be off by a few minutes.\n"
printf "\n"
printf "\e[1m::: Client Status List :::\e[0m\n"
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{
printf "\e[4mName\e[0m \t \e[4mRemote IP\e[0m \t "
printf "\e[4mVirtual IP\e[0m \t \e[4mBytes Received\e[0m \t "
printf "\e[4mBytes Sent\e[0m \t \e[4mConnected Since\e[0m\n"
if grep -q "^CLIENT_LIST" "${STATUS_LOG}"; then
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if [[ -n "$(type -t numfmt)" ]]; then
while read -r line; do
read -r -a array <<< "${line}"
[[ "${array[0]}" == 'CLIENT_LIST' ]] || continue
printf "%s \t %s \t " "${array[1]}" "${array[2]}"
printf "%s \t " "${array[3]}"
if [[ "${HR}" == 1 ]]; then
printf "%s \t %s" "$(hr "${array[4]}")" "$(hr "${array[5]}")"
else
printf "%'d \t %'d" "${array[4]}" "${array[5]}"
fi
printf " \t %s %s %s " "${array[7]}" "${array[8]}" "${array[10]}"
printf "%s\n" "${array[9]}"
printf "\n"
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done < "${STATUS_LOG}"
else
awk -F ' ' -v s='CLIENT_LIST' \
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'$1 == s {
print $2"\t\t"$3"\t"$4"\t"$5"\t\t"$6"\t\t"$8" "$9" "$11" - "$10"\n"
}' \
"${STATUS_LOG}"
fi
else
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printf "\nNo Clients Connected!\n"
fi
printf "\n"
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} | column -t -s $'\t'
}
if [[ ! -f "${STATUS_LOG}" ]]; then
err "The file: ${STATUS_LOG} was not found!"
exit 1
fi
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if [[ "$#" -eq 0 ]]; then
HR=1
listClients
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else
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while true; do
case "${1}" in
-b | bytes)
HR=0
listClients
exit 0
;;
-h | help)
scriptusage
exit 0
;;
*)
HR=0
listClients
exit 0
;;
esac
done
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fi