dotfiles/desktop/.config/waybar/modules/wireguard
Marty Oehme 017668792c
waybar: Improve vpn block icon rendering
This is a change which is very much hardcoded for my setup, but the vpn
block will now give preference to displaying individual VPN types from
top to bottom:

If privateinternetaccess is connected, it will display its icon.
If proton is connected, it will display its icon.
If netbird is connected it will display its icon.
If nothing is connected it will display nothing.

It is still quite a hacky solution and should also be replaced by a
signal-driven system instead of the recurrent polling it does currently
(it only polls once a minute atm, to keep system load/battery drain low
but since it invokes a lot of external commands, e.g. piactl and
netbird, it should really only be invoked on vpn changes).
2024-07-26 10:56:36 +02:00

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#!/usr/bin/env bash
# nmcli WireGuard abstraction layer for use with my waybar module and rofi custom menu script
#
# requires nmcli on your path
# install to the same directory as wireguard-rofi.sh
#
# usage: ./wireguard.sh [menu|toggle NAME]
# no argument: print current connections
# json: print waybar-ready json output
# menu: print all connections
# toggle NAME: toggle connection NAME
if ! command -v nmcli >/dev/null 2>&1; then
echo "err: nmcli not found"
exit 1
fi
nargs=$#
showmenu="no"
dotoggle="no"
printjson="no"
if [[ $nargs == 1 ]]; then
if [[ $1 == "menu" ]]; then
showmenu="yes"
elif [[ $1 == "json" ]]; then
printjson="yes"
fi
elif [[ $nargs == 2 ]]; then
if [[ $1 == "toggle" ]]; then
dotoggle="yes"
conn="$2"
fi
fi
nmclicmd="nmcli connection"
wgconns="$nmclicmd show"
wgactive="$wgconns --active"
connected=()
available=()
function print_as_json() {
text="${1%% |*}" # prints out name of first vpn it finds
alt="${1%%:*}"
tooltip="${1}"
[ -n "$1" ] && class="connected" || class="disconnected"
printf "{\"text\": \"%s\", \"alt\": \"%s\", \"tooltip\": \"%s\", \"class\": \"%s\"}" \
"$text" \
"$alt" \
"$tooltip" \
"$class"
}
function get_conns {
while read -r name _ type device; do
if [[ $type != "wireguard" && ($type != "tun" || $device != "proton0") ]]; then
continue
fi
if [[ $device != "--" ]]; then
while read -r key value; do
if [[ $key != "ipv4.addresses:" ]]; then
continue
fi
connected+=("$name: $value")
done < <($wgconns "$name")
else
available+=("$name")
fi
done < <($1)
}
function get_pia {
if ! command -v piactl >/dev/null 2>&1; then
return 1
fi
status=$(piactl get connectionstate)
if [[ $status = "Connected" ]]; then
connected+=("pia: $(piactl get vpnip)")
fi
}
function get_netbird {
if ! command -v netbird >/dev/null 2>&1 || [ "$(systemctl is-active netbird)" == "inactive" ]; then
return 1
fi
status="$(netbird status)"
if echo "$status" | grep -q "^Signal: Connected"; then
connected+=("netbird:$(echo "$status" | grep "^NetBird IP:" | cut -d':' -f2)")
fi
}
function print_conns {
local first="yes"
local array_print="$1[@]"
local array_print=("${!array_print}")
if [[ $2 == "list" ]]; then
for c in "${array_print[@]}"; do
output="$1: $c"
done
else
output=""
for c in "${array_print[@]}"; do
if [[ "$first" != "yes" ]]; then
output+=" | "
fi
output+="$c"
first="no"
done
fi
if [[ "$printjson" == "yes" ]]; then
print_as_json "$output"
else
echo "$output"
fi
}
function array_contains {
local array_has="$1[@]"
local array_has=("${!array_has}")
local element="$2"
for e in "${array_has[@]}"; do
if [[ "$e" == *"$element"* ]]; then
echo "yes"
return
fi
done
echo "no"
}
if [[ $nargs == 0 ]] || [[ $printjson = "yes" ]]; then
get_pia
get_netbird
get_conns "$wgactive"
print_conns connected
elif [[ $showmenu == "yes" ]]; then
get_pia
get_netbird
get_conns "$wgconns"
print_conns connected "list"
print_conns available "list"
elif [[ $dotoggle == "yes" ]]; then
get_pia
get_netbird
get_conns "$wgconns"
if [[ "$(array_contains connected "$conn")" == "yes" ]]; then
$nmclicmd down "$conn"
elif [[ "$(array_contains available "$conn")" == "yes" ]]; then
$nmclicmd up "$conn"
else
echo "err: connection not found"
exit 1
fi
else
echo "err: wrong args"
exit 1
fi