<%# LuCI - Lua Configuration Interface Copyright 2010 Jo-Philipp Wich <xm@subsignal.org> Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 -%> <%- local fs = require "nixio.fs" local sys = require "luci.sys" local utl = require "luci.util" local param = luci.http.formvalue local iface = param("iface") local style = param("style") style = (style and #style > 0) and style or "s" -- -- render image -- if iface then style = style:gsub("[^%w]", "") iface = iface:gsub("[^%w%.%-]", "") luci.http.prepare_content("image/png") local png = io.popen("vnstati -i '%s' '-%s' -o -" % { iface, style }) luci.http.write(png:read("*a")) png:close() return -- -- update database -- else sys.call("vnstat -u >/dev/null 2>/dev/null") end -- -- find databases -- local dbdir, line for line in io.lines("/etc/vnstat.conf") do dbdir = line:match("^%s*DatabaseDir%s+[\"'](%S-)[\"']") if dbdir then break end end dbdir = dbdir or "/var/lib/vnstat" -%> <%+header%> <h2><a id="content" name="content"><%:VnStat Graphs%></a></h2> <form action="" method="get"> <select name="style"> <option value="s"<%=(style == "s") and ' selected="selected"' or ''%>><%:Summary display%></option> <option value="t"<%=(style == "t") and ' selected="selected"' or ''%>><%:Top 10 display%></option> <option value="h"<%=(style == "h") and ' selected="selected"' or ''%>><%:Hourly traffic%></option> <option value="d"<%=(style == "d") and ' selected="selected"' or ''%>><%:Daily traffic%></option> <option value="m"<%=(style == "m") and ' selected="selected"' or ''%>><%:Monthly traffic%></option> </select> <input type="submit" value="<%:Update ยป%>" /> </form> <br /><hr /><br /> <div style="text-align:center"> <% empty = true ifdir = fs.dir(dbdir) if ifdir then for iface in ifdir do if iface:sub(1,1) ~= "." then empty = false %> <img src="<%=REQUEST_URI%>?iface=<%=iface%>&style=<%=param('style')%>" alt="" /> <br /><br /> <% end end end %> <% if empty then %> <p><em><%:No database has been set up yet. Go to the VnStat configuration and enable monitoring for one or more interfaces.%></em></p> <% end %> </div> <%+footer%>