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feature/ MacOS show vpn name and tailscale exit node if active #279

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feature/ MacOS show vpn name and tailscale exit node if active #279

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7fbd676
feature/show-vpn-name-or-name-of-tailscale-exit-node
Theoreticallyhugo Aug 19, 2024
296b738
added tailscale support for linux
Theoreticallyhugo Oct 24, 2024
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74 changes: 69 additions & 5 deletions scripts/network_vpn.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -5,26 +5,90 @@ export LC_ALL=en_US.UTF-8
current_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source $current_dir/utils.sh



vpn_function() {
case $(uname -s) in
Linux)

verbose=$(get_tmux_option "@dracula-network-vpn-verbose" false)

#Show IP of tun0 if connected
vpn=$(ip -o -4 addr show dev tun0 | awk '{print $4}' | cut -d/ -f1)

which -s tailscale > /dev/null
tailscale_installed=$?

if [[ $vpn =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}$ ]]; then
echo $vpn
elif [ $tailscale_installed ]; then
# if tailscale is installed
#
# https://www.reddit.com/r/Tailscale/comments/18dirro/is_there_a_way_i_can_tell_which_exit_node_i_am/
node=$(tailscale status --peers --json | jq '.ExitNodeStatus')
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I'm hesitant to rely on jq as a dependency.

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understandable. im planning to rework this entirely if i end up making it "production ready" and i will keep that in mind then 👍

if [[ -z $node ]] || [[ "$node" == 'null' ]]; then
# no tailscale exit node, no output, since trafic isnt actually rerouted
echo ""
else
exitnode=$(tailscale status | grep "; exit node" | awk '{print $2}')

if $verbose; then
vpn_label=$(get_tmux_option "@dracula-network-vpn-label" "󰌘 ")
echo "$vpn_label$exitnode"
else
vpn_label=$(get_tmux_option "@dracula-network-vpn-label" "Tailscale")
echo "$vpn_label"
fi
fi
else
echo "NO VPN"
echo ""
fi
;;

Darwin)
vpn=$(scutil --nc list | grep Connected)

if [ -z $vpn ]; then
verbose=$(get_tmux_option "@dracula-network-vpn-verbose" false)

vpn="$(scutil --nc list | sed "s/\*//g" | grep Connected)"

is_not_tailscale=$(echo "$vpn" | grep -v Tailscale)

which -s tailscale > /dev/null
tailscale_installed=$?

if [ -z "$vpn" ]; then
echo ""

elif [ $tailscale_installed ] && [ -z "$is_not_tailscale" ]; then
# if tailscale is installed and no other vpn is connected. this is because tailscale will
# always show as connected for some reason.
#
# https://www.reddit.com/r/Tailscale/comments/18dirro/is_there_a_way_i_can_tell_which_exit_node_i_am/
node=$(tailscale status --peers --json | jq '.ExitNodeStatus')
if [[ -z $node ]] || [[ "$node" == 'null' ]]; then
# no tailscale exit node, no output, since trafic isnt actually rerouted
echo ""
else
exitnode=$(tailscale status | grep "; exit node" | cut -w -f 2)

if $verbose; then
vpn_label=$(get_tmux_option "@dracula-network-vpn-label" "󰌘 ")
echo "$vpn_label$exitnode"
else
vpn_label=$(get_tmux_option "@dracula-network-vpn-label" "Tailscale")
echo "$vpn_label"
fi
fi

else
echo "VPN"
if $verbose; then
vpn_name=$(echo $is_not_tailscale | sed "s/.*\"\(.*\)\".*/\1/g")
vpn_label=$(get_tmux_option "@dracula-network-vpn-label" "󰌘 ")
echo "$vpn_label$vpn_name"
else
vpn_label=$(get_tmux_option "@dracula-network-vpn-label" "VPN")
echo "$vpn_label"
fi
fi
;;

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