<%# LuCI - Lua Configuration Interface Copyright 2010 Jo-Philipp Wich 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%>

<%:VnStat Graphs%>

<% empty = true ifdir = fs.dir(dbdir) if ifdir then for iface in ifdir do if iface:sub(1,1) ~= "." then empty = false %>

<% end end end %> <% if empty then %>

<%:No database has been set up yet. Go to the VnStat configuration and enable monitoring for one or more interfaces.%>

<% end %>

<%+footer%>