wicd-check.sh

#!/usr/bin/env sh
#
# Use this script in a crontab to execute specific scripts when
# your machine is connected to a specific network
# scripts are stored in ``/etc/network/scripts/${NETWORK_NAME}``
#
# Also ensure to restart failed miredo (if present)
#
# Using "Ubuntu 16.10" with "wicd 1.7.4 (bzr-r961)"
# scripts as ``postconnect`` are not properly executed, even when
# defined in ``/etc/wicd/wire*settings.conf``

set_status() {
    export NETWORK_TYPE NETWORK_STATUS NETWORK_NAME

    status=$(LANGUAGE=en_US; wicd-cli --status)

    NETWORK_TYPE=$(echo "${status}" | egrep '^Connection type:\s{1}' | awk -F ': ' '{print $2}')
    NETWORK_STATUS=$(echo "${status}" | head -1 | awk -F ': ' '{print $2}')
    NETWORK_NAME=$(echo "${status}" | egrep '^Connected to\s{1}' | awk '{print $3}')
}

miredo_check() {
    which miredo > /dev/null || return 0

    systemctl status miredo | grep -vqi failed
}

systemctl() {
  /usr/bin/env systemctl --no-ask-password --system "$@"
}

execute_network_script() {
    network_script="/etc/network/scripts/${NETWORK_NAME}"

    test -n "${NETWORK_NAME}"   || return 0
    test -f "${network_script}" || return 0
    test -x "${network_script}" || return 0

    "${network_script}"
}

main() {
    set_status

    echo "${NETWORK_STATUS}" | egrep -q '^Connected' || {
        echo 'Not connected' 1>&2
        return 100 # ENETDOWN 100 Network is down
    }

    echo "${NETWORK_STATUS} to '${NETWORK_NAME:-unnamed}' (${NETWORK_TYPE})"

    miredo_check || systemctl restart miredo
    execute_network_script
}

main