]> git.madduck.net Git - etc/awesome.git/blob - widgets/net.lua

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

Merge branch 'master' of https://github.com/copycat-killer/lain
[etc/awesome.git] / widgets / net.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013,      Luke Bonham                
6       * (c) 2010-2012, Peter Hofmann              
7                                                   
8 --]]
9
10 local helpers      = require("lain.helpers")
11
12 local notify_fg    = require("beautiful").fg_focus
13 local naughty      = require("naughty")
14 local wibox        = require("wibox")
15
16 local io           = { popen  = io.popen }
17 local tostring     = tostring
18 local string       = { format = string.format,
19                        gsub   = string.gsub }
20
21 local setmetatable = setmetatable
22
23 -- Network infos
24 -- lain.widgets.net
25 local net = {
26     last_t = 0,
27     last_r = 0
28 }
29
30 function net.get_device()
31     f = io.popen("ip link show | cut -d' ' -f2,9")
32     ws = f:read("*a")
33     f:close()
34     ws = ws:match("%w+: UP")
35     if ws ~= nil then
36         return ws:gsub(": UP", "")
37     else
38         return "network off"
39     end
40 end
41
42 local function worker(args)
43     local args = args or {}
44     local timeout = args.timeout or 2
45     local iface = args.iface or net.get_device()
46     local units = args.units or 1024 --kb
47     local notify = args.notify or "on"
48     local settings = args.settings or function() end
49
50     net.widget = wibox.widget.textbox('')
51
52     helpers.set_map(iface, true)
53
54     function update()
55         net_now = {}
56
57         if iface == "" then iface = net.get_device() end
58
59         net_now.carrier = helpers.first_line('/sys/class/net/' .. iface ..
60                                            '/carrier') or "0"
61         net_now.state = helpers.first_line('/sys/class/net/' .. iface ..
62                                            '/operstate') or "down"
63         local now_t = helpers.first_line('/sys/class/net/' .. iface ..
64                                            '/statistics/tx_bytes') or 0
65         local now_r = helpers.first_line('/sys/class/net/' .. iface ..
66                                            '/statistics/rx_bytes') or 0
67
68         net_now.sent = tostring((now_t - net.last_t) / timeout / units)
69         net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ",", ".")
70
71         net_now.received = tostring((now_r - net.last_r) / timeout / units)
72         net_now.received = string.gsub(string.format('%.1f', net_now.received), ",", ".")
73
74         widget = net.widget
75         settings()
76
77         net.last_t = now_t
78         net.last_r = now_r
79
80         if net_now.carrier ~= "1" and notify == "on"
81         then
82             if helpers.get_map(iface)
83             then
84                 naughty.notify({
85                     title    = iface,
86                     text     = "no carrier",
87                     timeout  = 7,
88                     position = "top_left",
89                     icon     = helpers.icons_dir .. "no_net.png",
90                     fg       = notify_fg or "#FFFFFF",
91                 })
92                 helpers.set_map(iface, false)
93             end
94         else
95             helpers.set_map(iface, true)
96         end
97     end
98
99     helpers.newtimer(iface, timeout, update)
100     return net.widget
101 end
102
103 return setmetatable(net, { __call = function(_, ...) return worker(...) end })