99 lines
3.1 KiB
Bash
Executable File
99 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright (C) 2021 Damien Cassou
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# Author: Damien Cassou <damien@cassou.me>
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# Url: https://gitlab.com/DamienCassou/rofi-vpn
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# Version: 0.2.0
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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# Commentary:
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# This program uses rofi and nmcli to let the user enable/disable VPN
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# connections.
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# Code:
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# What to show in front of an active VPN connection:
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ACTIVE_PREFIX=" "
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# What to show in front of an inactive VPN connection:
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INACTIVE_PREFIX=" "
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# Display on standard output all VPN connections, one per line. An
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# active VPN connection is prefixed with `ACTIVE_PREFIX` and an inactive
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# one is prefixed with `INACTIVE_PREFIX`.
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function list_vpn_connections() {
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nmcli --get-values ACTIVE,NAME,TYPE connection show \
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| grep ':vpn$' \
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| sed \
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-e "s/^no:/${INACTIVE_PREFIX}/" \
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-e "s/^yes:/${ACTIVE_PREFIX}/" \
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-e 's/:vpn$//'
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}
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# Take a line as displayed by `list_vpn_connections()` as argument and
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# use nmcli to toggle the corresponding connection.
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function toggle_vpn_connection() {
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local result="$1"
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local connection
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connection=$(extract_connection_name_from_result "${result}")
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if [[ $result = ${ACTIVE_PREFIX}* ]]; then
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feedback=$(nmcli connection down "$connection")
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notify-send "VPN Status '$connection'" "$feedback"
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else
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alacritty --class "vpn-prompt" --title "VPN Connection" -e nmcli connection --ask up "$connection"
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#feedback=$(nmcli connection up "$connection")
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notify-send "VPN Status '$connection'" "Trying to connect"
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fi
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}
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# Take a line as displayed by `list_vpn_connections()` as argument and
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# remove `ACTIVE_PREFIX` or `INACTIVE_PREFIX` to only display the
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# connection name.
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function extract_connection_name_from_result() {
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local result="$1"
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# I don't know how to use plain bash to remove the prefix so I'm
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# using sed:
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# shellcheck disable=SC2001
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sed -e 's/^.* \([^ ]\+\)$/\1/' <<< "$result"
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}
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# Execute the `rofi` command. The first argument of the function is
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# used as lines to select from.
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function start_rofi() {
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local content="$1"
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echo -e "$content" | rofi -dmenu -theme $HOME/.config/rofi/nm-vpn/nm-vpn.rasi -mesg " VPN Connection Manager" -icon ""
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}
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# List the VPN connections and let the user toggle one using rofi.
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function main() {
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local connections
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local result
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connections=$(list_vpn_connections)
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result=$(start_rofi "$connections")
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if [ -n "$result" ]; then
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toggle_vpn_connection "$result"
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else
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exit 1
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fi
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}
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main |