ffho-packages/ffho/ffho-autoupdater-wifi-fallback/luasrc/usr/lib/lua/autoupdater-wifi-fallback/util.lua

#!/usr/bin/lua
local uci = require('luci.model.uci').cursor()
local iwinfo = require "iwinfo"

function get_available_wifi_networks()
  local radios = {}

  uci:foreach('wireless', 'wifi-device',
    function(s)
      radios[s['.name']] = {}
    end
  )

  for radio, _ in pairs(radios) do
    local wifitype = iwinfo.type(radio)
    local iw = iwinfo[wifitype]
    if iw then
      local tmplist = iw.scanlist(radio)
      for _, net in ipairs(tmplist) do
        if net.ssid and net.bssid then
          if net.ssid:match('.*[Ff][Rr][Ee][Ii][Ff][Uu][Nn][Kk].*') then
            table.insert (radios[radio], net)
          end
        end
      end
    end
  end

  return radios
end

function get_update_hosts(branch)
  local hosts = {}
  local mirrors = uci:get_list('autoupdater', branch, 'mirror')

  for _, mirror in ipairs(mirrors) do
    local host = mirror:match("://%[?([a-zA-Z0-9\:\.]+)%]?/")
    table.insert(hosts, 1, host)
  end
  return hosts
end