Autofill Cisco VPN password saved in macOS keychain (update for Big Sur)

macos_vpn_keychain.sh

#!/bin/sh
if [[ $# < 2 ]]; then
	echo "Use password saved in macOS keychain for Cisco VPNs"
	echo "$0 usage: myscript vpnname keychainitem [close_second_window]"
	exit 1
fi

VPNName=$1 # match the name of the VPN service to run
keychainItem=$2 # this name has to match "Account" for the entry you make in keychain
password=$(security find-generic-password -wl "$keychainItem")

# exit if keychain item is not accessible, the keychain will write an error message already
if [ $? != 0 ]; then exit 1; fi

# echo "Fetching VPN credentials from keychain item \"$keychainItem\""
# echo "Using VPN service: \"$VPNName\""

scutil --nc status "$VPNName" | grep -q "Disconnected"
if [ $? != 0 ]; then echo "Could not connect. Please check that the VPN name is written correctly and you are not already connected." 1>&2; exit 1; fi

scutil --nc start "$VPNName"

printf "Connecting ... "

trap "echo \"aborting\"; scutil --nc stop \"$VPNName\"; exit" SIGINT SIGQUIT

osascript <<EOF
tell application "System Events" to tell process "UserNotificationCenter"
	repeat until window 1 exists
		delay 0.05
	end repeat
	tell application "System Events"
	        keystroke (ASCII character 9)
		keystroke "$password"
		keystroke return
	end tell
	keystroke return
end tell
EOF

# optional second information window
if [[ $3 ]]; then
osascript <<EOF
tell application "System Events" to tell process "UserNotificationCenter"
	repeat until window 1 exists
		delay 0.05
	end repeat
	keystroke return
end tell
EOF
fi

printf "success\n"

exit