Geolocate

geolocate.lua takes one or more files as input and
outputs the corresponding longitude/latitude GPS coordinates
for each of those input files.

The input file should contain bssid(access point's MAC) and
signal per line using this format:

BSSID <number> : <6-byte MAC address> Signal : <signal strength percent>%

Note that Google's geolocation API requires at least 2 sets of
BSSID data to work.

To have geolocate read from stdin use '-' as input filename.
For example, in Windows, the command below pipes the stdout from netsh
and feeds it into geolocate's stdin:

netsh wlan show networks mode=bssid | geolocate.lua -

Dependencies

The Lua script uses the following external lua libraries:

• penlight's pretty dump module
• dkjson for dealing with json messages
• luasocket's http module for doing REST request
• luasec's https module for handling ssl/tls communication.
• luacom for displaying generated map page in browser w/o blocking