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--[[
Luci statistics - statistics controller module
(c) 2008 Freifunk Leipzig / Jo-Philipp Wich <xm@leipzig.freifunk.net>
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
$Id$
]]--
module("luci.controller.luci_statistics.luci_statistics", package.seeall)
function index()
require("luci.fs")
require("luci.util")
require("luci.i18n")
require("luci.statistics.datatree")
-- load language files
luci.i18n.loadc("rrdtool")
luci.i18n.loadc("statistics")
-- get rrd data tree
local tree = luci.statistics.datatree.Instance()
-- override entry(): check for existance <plugin>.so where <plugin> is derived from the called path
function _entry( path, ... )
local file = path[5] or path[4]
if luci.fs.isfile( "/usr/lib/collectd/" .. file .. ".so" ) then
entry( path, ... )
end
end
-- override i18n(): try to translate stat_<str> or fall back to <str>
function _i18n( str )
return luci.i18n.translate( "stat_" .. str, str )
end
-- our collectd menu
local collectd_menu = {
output = { "rrdtool", "network", "unixsock", "csv" },
system = { "exec", "email", "cpu", "df", "disk", "irq", "processes", "load" },
network = { "interface", "netlink", "iptables", "tcpconns", "ping", "dns", "wireless" }
}
-- create toplevel menu nodes
local st = entry({"admin", "statistics"}, call("statistics_index"), _i18n("statistics"), 80)
st.i18n = "statistics"
st.index = true
entry({"admin", "statistics", "collectd"}, cbi("luci_statistics/collectd"), _i18n("collectd"), 10).subindex = true
-- populate collectd plugin menu
local index = 1
for section, plugins in luci.util.kspairs( collectd_menu ) do
entry(
{ "admin", "statistics", "collectd", section },
call( "statistics_" .. section .. "plugins" ),
_i18n( section .. "plugins" ),
index * 10
).index = true
for j, plugin in luci.util.vspairs( plugins ) do
_entry(
{ "admin", "statistics", "collectd", section, plugin },
cbi("luci_statistics/" .. plugin ),
_i18n( plugin ),
j * 10
)
end
index = index + 1
end
-- output views
local page = entry( { "admin", "statistics", "graph" }, call("statistics_index"), _i18n("graphs"), 80)
page.i18n = "statistics"
page.setuser = "nobody"
page.setgroup = "nogroup"
local vars = luci.http.formvalue(nil, true)
local span = vars.timespan or nil
for i, plugin in luci.util.vspairs( tree:plugins() ) do
-- get plugin instances
local instances = tree:plugin_instances( plugin )
-- plugin menu entry
entry(
{ "admin", "statistics", "graph", plugin },
call("statistics_render"), _i18n( plugin ), i
).query = { timespan = span }
-- if more then one instance is found then generate submenu
if #instances > 1 then
for j, inst in luci.util.vspairs(instances) do
-- instance menu entry
entry(
{ "admin", "statistics", "graph", plugin, inst },
call("statistics_render"), inst, j
).query = { timespan = span }
end
end
end
end
function statistics_index()
luci.template.render("admin_statistics/index")
end
function statistics_outputplugins()
local plugins = { }
for i, p in ipairs({ "rrdtool", "network", "unixsock", "csv" }) do
plugins[p] = luci.i18n.translate( "stat_" .. p, p )
end
luci.template.render("admin_statistics/outputplugins", {plugins=plugins})
end
function statistics_systemplugins()
local plugins = { }
for i, p in ipairs({ "exec", "email", "df", "disk", "irq", "processes", "cpu" }) do
plugins[p] = luci.i18n.translate( "stat_" .. p, p )
end
luci.template.render("admin_statistics/systemplugins", {plugins=plugins})
end
function statistics_networkplugins()
local plugins = { }
for i, p in ipairs({ "interface", "netlink", "iptables", "tcpconns", "ping", "dns", "wireless" }) do
plugins[p] = luci.i18n.translate( "stat_" .. p, p )
end
luci.template.render("admin_statistics/networkplugins", {plugins=plugins})
end
function statistics_render()
require("luci.statistics.rrdtool")
require("luci.template")
require("luci.model.uci")
local vars = luci.http.formvalue()
local req = luci.dispatcher.context.request
local path = luci.dispatcher.context.path
local uci = luci.model.uci.cursor()
local spans = luci.util.split( uci:get( "luci_statistics", "collectd_rrdtool", "RRATimespans" ), "%s+", nil, true )
local span = vars.timespan or uci:get( "luci_statistics", "rrdtool", "default_timespan" ) or spans[1]
local graph = luci.statistics.rrdtool.Graph( luci.util.parse_units( span ) )
local plugin, instances
local images = { }
-- find requested plugin and instance
for i, p in ipairs( luci.dispatcher.context.path ) do
if luci.dispatcher.context.path[i] == "graph" then
plugin = luci.dispatcher.context.path[i+1]
instances = { luci.dispatcher.context.path[i+2] }
end
end
-- no instance requested, find all instances
if #instances == 0 then
instances = { graph.tree:plugin_instances( plugin )[1] }
-- index instance requested
elseif instances[1] == "-" then
instances[1] = ""
end
-- render graphs
for i, inst in ipairs( instances ) do
for i, img in ipairs( graph:render( plugin, inst ) ) do
table.insert( images, graph:strippngpath( img ) )
end
end
luci.template.render( "public_statistics/graph", {
images = images,
plugin = plugin,
timespans = spans,
current_timespan = span
} )
end
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