applications/luci-vnstat/luasrc/view/vnstat.htm

   1 <%#
   2 LuCI - Lua Configuration Interface
   3 Copyright 2010 Jo-Philipp Wich <xm@subsignal.org>
   4
   5 Licensed under the Apache License, Version 2.0 (the "License");
   6 you may not use this file except in compliance with the License.
   7 You may obtain a copy of the License at
   8
   9         http://www.apache.org/licenses/LICENSE-2.0
  10
  11 -%>
  12
  13 <%-
  14
  15 local fs  = require "nixio.fs"
  16 local sys = require "luci.sys"
  17 local utl = require "luci.util"
  18
  19 local param = luci.http.formvalue
  20
  21 local iface = param("iface")
  22 local style = param("style")
  23
  24 style = (style and #style > 0) and style or "s"
  25
  26
  27 --
  28 -- render image
  29 --
  30 if iface then
  31         style = style:gsub("[^%w]", "")
  32         iface = iface:gsub("[^%w%.%-]", "")
  33
  34         luci.http.prepare_content("image/png")
  35
  36         local png = io.popen("vnstati -i '%s' '-%s' -o -" % { iface, style })
  37         luci.http.write(png:read("*a"))
  38         png:close()
  39
  40         return
  41
  42 --
  43 -- update database
  44 --
  45 else
  46         sys.call("vnstat -u >/dev/null 2>/dev/null")
  47 end
  48
  49
  50 --
  51 -- find databases
  52 --
  53 local dbdir, line
  54
  55 for line in io.lines("/etc/vnstat.conf") do
  56         dbdir = line:match("^%s*DatabaseDir%s+[\"'](%S-)[\"']")
  57         if dbdir then break end
  58 end
  59
  60 dbdir = dbdir or "/var/lib/vnstat"
  61
  62 -%>
  63
  64 <%+header%>
  65
  66 <h2><a id="content" name="content"><%:VnStat Graphs%></a></h2>
  67
  68 <form action="" method="get">
  69
  70 <select name="style">
  71         <option value="s"<%=(style == "s") and ' selected="selected"' or ''%>><%:Summary display%></option>
  72         <option value="t"<%=(style == "t") and ' selected="selected"' or ''%>><%:Top 10 display%></option>
  73         <option value="h"<%=(style == "h") and ' selected="selected"' or ''%>><%:Hourly traffic%></option>
  74         <option value="d"<%=(style == "d") and ' selected="selected"' or ''%>><%:Daily traffic%></option>
  75         <option value="m"<%=(style == "m") and ' selected="selected"' or ''%>><%:Monthly traffic%></option>
  76 </select>
  77
  78 <input type="submit" value="<%:Update »%>" />
  79
  80 </form>
  81
  82 <br /><hr /><br />
  83
  84 <div style="text-align:center">
  85 <%
  86    empty = true
  87    ifdir = fs.dir(dbdir)
  88
  89    if ifdir then
  90      for iface in ifdir do
  91        if iface:sub(1,1) ~= "." then
  92          empty = false
  93 %>
  94         <img src="<%=REQUEST_URI%>?iface=<%=iface%>&amp;style=<%=param('style')%>" alt="" />
  95         <br /><br />
  96 <%
  97        end
  98      end
  99    end
 100 %>
 101
 102 <% if empty then %>
 103 <p><em><%:No database has been set up yet. Go to the VnStat configuration and enable monitoring for one or more interfaces.%></em></p>
 104 <% end %>
 105
 106 </div>
 107
 108 <%+footer%>