Use openconnect to log into a Cisco-compatible VPN

connect-to-vpn

#!/usr/bin/env bash
set -e

# Prerequisites:
#   brew install openconnect xmlstarlet
#   pip install keyring
#   curl https://raw.githubusercontent.com/sailfishos-mirror/openconnect/refs/heads/master/trojans/csd-post.sh
#   keyring set HOSTNAME USERNAME

# Usage:
#   connect-to-vpn HOSTNAME USERGROUP USERNAME

vpn_hostname="$1"
vpn_usergroup="$2"
vpn_username="$3"
vpn_password="$(keyring get $vpn_hostname $vpn_username)"

echo "$vpn_password" | \
sudo openconnect --verbose --protocol="anyconnect" \
    --csd-wrapper="csd-post.sh" \
    --server="$vpn_hostname" \
    --authgroup="$vpn_usergroup" \
    --user="$vpn_username" \
    --passwd-on-stdin