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|
#!/usr/bin/env bash
set -euo pipefail
usage() {
cat <<EOF
Usage: ${0##*/} <command> [connections...]
Manage Network Manager VPN connections.
Commands:
up enable vpn
down disable vpn
toggle toggle vpn status
status display vpn staus
If a connection name is passed, run the command on that connection; otherwise,
select the connection interactively. If multiple connections are selected,
the command will be applied to them sequentially.
If no arguments passed and no active connection then equal to up command, if has
active connections then equals to down command
EOF
exit 1
}
list_vpn_connections() {
nmcli -t --fields=TYPE,ACTIVE,UUID,NAME connection show | awk 'BEGIN{FS=":"; OFS=FS}/^(vpn|wireguard):/{print $2, $3, $4}'
}
select_connection() {
local state
local columns=2
# shellcheck disable=SC2016
local output='{print $1}'
case "$1" in
up) state=no ;;
down) state=yes ;;
toggle)
state=""
columns="1,3"
# shellcheck disable=SC2016
output='{if ($1=="yes"){print $2, "down"} else {print $2, "up"}}'
;;
esac
list_vpn_connections |
awk -v state="$state" 'BEGIN{FS=":"; OFS=FS}{if ($1==state){print $2, $3} if (state=="") {print $0}}' |
fzf --multi --delimiter=':' --with-nth="$columns" --exit-0 --select-1 |
awk -F ':' "$output"
}
run_command() {
local state=$1
shift
if [ $# -eq 0 ]; then
select_connection "$state" | while read -r connection_uuid; do
nmcli connection "$state" "$connection_uuid" >/dev/null
done
else
for connection in "$@"; do
nmcli connection "$state" "$connection" >/dev/null
done
fi
}
run_toggle() {
if [ $# -eq 0 ]; then
select_connection toggle | while read -r connection_uuid state; do
run_command "$state" "$connection_uuid"
done
else
for connection in "$@"; do
if nmcli connection show "$connection" | grep "GENERAL.STATE" >/dev/null; then
run_command down "$connection"
else
run_command up "$connection"
fi
done
fi
}
run_status() {
(
echo "Active:Name"
list_vpn_connections | cut --delimiter=':' --fields=1,3
) | column --table --separator=':'
}
main() {
if [ $# -eq 0 ]; then
main down || main up
exit
fi
command_name="$1"
shift
case "$command_name" in
up | down) run_command "$command_name" "$@" ;;
toggle | status) "run_$command_name" "$@" ;;
*) usage ;;
esac
}
main "$@"
|
