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121 lines
4.4 KiB
121 lines
4.4 KiB
--[[ |
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Licensed under GNU General Public License v2 |
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* (c) 2013, Luca CPZ |
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* (c) 2010-2012, Peter Hofmann |
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--]] |
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local helpers = require("lain.helpers") |
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local naughty = require("naughty") |
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local wibox = require("wibox") |
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local string = string |
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-- Network infos |
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-- lain.widget.net |
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local function factory(args) |
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args = args or {} |
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local net = { widget = args.widget or wibox.widget.textbox(), devices = {} } |
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local timeout = args.timeout or 2 |
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local units = args.units or 1024 -- KB |
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local notify = args.notify or "on" |
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local wifi_state = args.wifi_state or "off" |
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local eth_state = args.eth_state or "off" |
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local screen = args.screen or 1 |
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local settings = args.settings or function() end |
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-- Compatibility with old API where iface was a string corresponding to 1 interface |
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net.iface = (args.iface and (type(args.iface) == "string" and {args.iface}) or |
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(type(args.iface) == "table" and args.iface)) or {} |
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function net.get_devices() |
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net.iface = {} -- reset at every call |
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helpers.line_callback("ip link", function(line) |
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net.iface[#net.iface + 1] = not string.match(line, "LOOPBACK") and string.match(line, "(%w+): <") or nil |
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end) |
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end |
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if #net.iface == 0 then net.get_devices() end |
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function net.update() |
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-- These are the totals over all specified interfaces |
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net_now = { |
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devices = {}, |
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-- Bytes since last iteration |
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sent = 0, |
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received = 0 |
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} |
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for _, dev in ipairs(net.iface) do |
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local dev_now = {} |
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local dev_before = net.devices[dev] or { last_t = 0, last_r = 0 } |
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local now_t = tonumber(helpers.first_line(string.format("/sys/class/net/%s/statistics/tx_bytes", dev)) or 0) |
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local now_r = tonumber(helpers.first_line(string.format("/sys/class/net/%s/statistics/rx_bytes", dev)) or 0) |
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dev_now.carrier = helpers.first_line(string.format("/sys/class/net/%s/carrier", dev)) or "0" |
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dev_now.state = helpers.first_line(string.format("/sys/class/net/%s/operstate", dev)) or "down" |
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dev_now.sent = (now_t - dev_before.last_t) / timeout / units |
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dev_now.received = (now_r - dev_before.last_r) / timeout / units |
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net_now.sent = net_now.sent + dev_now.sent |
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net_now.received = net_now.received + dev_now.received |
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dev_now.sent = string.format("%.1f", dev_now.sent) |
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dev_now.received = string.format("%.1f", dev_now.received) |
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dev_now.last_t = now_t |
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dev_now.last_r = now_r |
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if wifi_state == "on" and helpers.first_line(string.format("/sys/class/net/%s/uevent", dev)) == "DEVTYPE=wlan" then |
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dev_now.wifi = true |
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if string.match(dev_now.carrier, "1") then |
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dev_now.signal = tonumber(string.match(helpers.lines_from("/proc/net/wireless")[3], "(%-%d+%.)")) or nil |
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end |
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else |
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dev_now.wifi = false |
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end |
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if eth_state == "on" and helpers.first_line(string.format("/sys/class/net/%s/uevent", dev)) ~= "DEVTYPE=wlan" then |
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dev_now.ethernet = true |
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else |
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dev_now.ethernet = false |
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end |
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net.devices[dev] = dev_now |
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-- Notify only once when connection is lost |
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if string.match(dev_now.carrier, "0") and notify == "on" and helpers.get_map(dev) then |
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naughty.notify { |
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title = dev, |
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text = "No carrier", |
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icon = helpers.icons_dir .. "no_net.png", |
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screen = screen |
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} |
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helpers.set_map(dev, false) |
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elseif string.match(dev_now.carrier, "1") then |
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helpers.set_map(dev, true) |
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end |
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net_now.carrier = dev_now.carrier |
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net_now.state = dev_now.state |
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net_now.devices[dev] = dev_now |
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-- net_now.sent and net_now.received will be |
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-- the totals across all specified devices |
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end |
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net_now.sent = string.format("%.1f", net_now.sent) |
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net_now.received = string.format("%.1f", net_now.received) |
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widget = net.widget |
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settings() |
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end |
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helpers.newtimer("network", timeout, net.update) |
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return net |
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end |
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return factory
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