applications/luci-app-wol/luasrc/model/cbi/wol.lua

   1 -- Copyright 2010 Jo-Philipp Wich <jow@openwrt.org>
   2 -- Licensed to the public under the Apache License 2.0.
   3
   4 local sys = require "luci.sys"
   5 local fs  = require "nixio.fs"
   6
   7 m = SimpleForm("wol", translate("Wake on LAN"),
   8         translate("Wake on LAN is a mechanism to remotely boot computers in the local network."))
   9
  10 m.submit = translate("Wake up host")
  11 m.reset  = false
  12
  13
  14 local has_ewk = fs.access("/usr/bin/etherwake")
  15 local has_wol = fs.access("/usr/bin/wol")
  16
  17
  18 s = m:section(SimpleSection)
  19
  20 if has_ewk and has_wol then
  21         bin = s:option(ListValue, "binary", translate("WoL program"),
  22                 translate("Sometimes only one of the two tools works. If one fails, try the other one"))
  23
  24         bin:value("/usr/bin/etherwake", "Etherwake")
  25         bin:value("/usr/bin/wol", "WoL")
  26 end
  27
  28 if has_ewk then
  29         iface = s:option(ListValue, "iface", translate("Network interface to use"),
  30                 translate("Specifies the interface the WoL packet is sent on"))
  31
  32         if has_wol then
  33                 iface:depends("binary", "/usr/bin/etherwake")
  34         end
  35
  36         iface:value("", translate("Broadcast on all interfaces"))
  37
  38         for _, e in ipairs(sys.net.devices()) do
  39                 if e ~= "lo" then iface:value(e) end
  40         end
  41 end
  42
  43
  44 host = s:option(Value, "mac", translate("Host to wake up"),
  45         translate("Choose the host to wake up or enter a custom MAC address to use"))
  46
  47 sys.net.mac_hints(function(mac, name)
  48         host:value(mac, "%s (%s)" %{ mac, name })
  49 end)
  50
  51
  52 function host.write(self, s, val)
  53         local host = luci.http.formvalue("cbid.wol.1.mac")
  54         if host and #host > 0 and host:match("^[a-fA-F0-9:]+$") then
  55                 local cmd
  56                 local util = luci.http.formvalue("cbid.wol.1.binary") or (
  57                         has_ewk and "/usr/bin/etherwake" or "/usr/bin/wol"
  58                 )
  59
  60                 if util == "/usr/bin/etherwake" then
  61                         local iface = luci.http.formvalue("cbid.wol.1.iface")
  62                         cmd = "%s -D%s %q" %{
  63                                 util, (iface ~= "" and " -i %q" % iface or ""), host
  64                         }
  65                 else
  66                         cmd = "%s -v %q" %{ util, host }
  67                 end
  68
  69                 local msg = "<p><strong>%s</strong><br /><br /><code>%s<br /><br />" %{
  70                         translate("Starting WoL utility:"), cmd
  71                 }
  72
  73                 local p = io.popen(cmd .. " 2>&1")
  74                 if p then
  75                         while true do
  76                                 local l = p:read("*l")
  77                                 if l then
  78                                         if #l > 100 then l = l:sub(1, 100) .. "..." end
  79                                         msg = msg .. l .. "<br />"
  80                                 else
  81                                         break
  82                                 end
  83                         end
  84                         p:close()
  85                 end
  86
  87                 msg = msg .. "</code></p>"
  88
  89                 m.message = msg
  90         end
  91 end
  92
  93
  94 return m