#!/bin/bash

/usr/bin/notify-send -i 'dialog-information' 'Running CheckNetUp.sh' 'Checking whether network is up'

AtLeastOneSiteFound=false;

# Try to download three sites and indicate a site was found if they work
# as long as we can grab at least one site, we're good.
# Otherwise, we'll disconnect and reconnect.

/usr/bin/wget --spider --read-timeout=15 http://google.ca
if [ "$?" = 0 ]; then
  AtLeastOneSiteFound=true;
fi

/usr/bin/wget --spider --read-timeout=15 http://facebook.com
if [ "$?" = 0 ]; then
  AtLeastOneSiteFound=true;
fi

/usr/bin/wget --spider --read-timeout=15 http://wikipedia.org
if [ "$?" = 0 ]; then
  AtLeastOneSiteFound=true;
fi

if [ "$AtLeastOneSiteFound" = false ]; then
  # Disconnect my wifi (and, consequently, VPN)
  /usr/bin/nmcli dev disconnect wlp0s20u2
  # Bring my wifi up
  /usr/bin/nmcli con up uuid e23f4af0-7411-4f4e-8d3c-a7cd35b607e1
  # Bring my VPN up
  /usr/bin/nmcli con up uuid 6b0f8740-df8e-411e-adeb-bcf70ced772f
fi

Error: Connection activation failed: Not authorized to control networking.