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--[[
Licensed under GNU General Public License v2
* (c) 2013, Luke Bonham
* (c) 2010-2012, Peter Hofmann
--]]
local helpers = require("lain.helpers")
local notify_fg = require("beautiful").fg_focus
local naughty = require("naughty")
local wibox = require("wibox")
local io = { popen = io.popen }
local string = { format = string.format,
gsub = string.gsub,
match = string.match }
local setmetatable = setmetatable
-- Network infos
-- lain.widgets.net
local net = {
last_t = 0,
last_r = 0
}
function net.get_device()
f = io.popen("ip link show | cut -d' ' -f2,9")
ws = f:read("*a")
f:close()
ws = ws:match("%w+: UP") or ws:match("ppp%w+: UNKNOWN")
if ws ~= nil then
return ws:match("(%w+):")
else
return "network off"
end
end
local function worker(args)
local args = args or {}
local timeout = args.timeout or 2
local units = args.units or 1024 --kb
local notify = args.notify or "on"
local screen = args.screen or 1
local settings = args.settings or function() end
iface = args.iface or net.get_device()
net.widget = wibox.widget.textbox('')
helpers.set_map(iface, true)
function update()
net_now = {}
if iface == "" or string.match(iface, "network off")
then
iface = net.get_device()
end
net_now.carrier = helpers.first_line('/sys/class/net/' .. iface ..
'/carrier') or "0"
net_now.state = helpers.first_line('/sys/class/net/' .. iface ..
'/operstate') or "down"
local now_t = helpers.first_line('/sys/class/net/' .. iface ..
'/statistics/tx_bytes') or 0
local now_r = helpers.first_line('/sys/class/net/' .. iface ..
'/statistics/rx_bytes') or 0
net_now.sent = (now_t - net.last_t) / timeout / units
net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ",", ".")
net_now.received = (now_r - net.last_r) / timeout / units
net_now.received = string.gsub(string.format('%.1f', net_now.received), ",", ".")
widget = net.widget
settings()
net.last_t = now_t
net.last_r = now_r
if net_now.carrier ~= "1" and notify == "on"
then
if helpers.get_map(iface)
then
naughty.notify({
title = iface,
text = "no carrier",
timeout = 7,
position = "top_left",
icon = helpers.icons_dir .. "no_net.png",
fg = notify_fg or "#FFFFFF",
screen = screen
})
helpers.set_map(iface, false)
end
else
helpers.set_map(iface, true)
end
end
helpers.newtimer(iface, timeout, update)
return net.widget
end
return setmetatable(net, { __call = function(_, ...) return worker(...) end })
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