applications/luci-statistics/luasrc/controller/luci_statistics/luci_statistics.lua

   1 --[[
   2
   3 Luci statistics - statistics controller module
   4 (c) 2008 Freifunk Leipzig / Jo-Philipp Wich <xm@leipzig.freifunk.net>
   5
   6 Licensed under the Apache License, Version 2.0 (the "License");
   7 you may not use this file except in compliance with the License.
   8 You may obtain a copy of the License at
   9
  10         http://www.apache.org/licenses/LICENSE-2.0
  11
  12 $Id$
  13
  14 ]]--
  15
  16 module("luci.controller.luci_statistics.luci_statistics", package.seeall)
  17
  18 function index()
  19
  20         require("luci.fs")
  21         require("luci.util")
  22         require("luci.i18n")
  23         require("luci.statistics.datatree")
  24
  25         -- load language file
  26         luci.i18n.loadc("statistics")
  27
  28         -- get rrd data tree
  29         local tree = luci.statistics.datatree.Instance()
  30
  31         -- override entry(): check for existance <plugin>.so where <plugin> is derived from the called path
  32         function _entry( path, ... )
  33                 local file = path[5] or path[4]
  34                 if luci.fs.isfile( "/usr/lib/collectd/" .. file .. ".so" ) then
  35                         entry( path, ... )
  36                 end
  37         end
  38
  39         -- override i18n(): try to translate stat_<str> or fall back to <str>
  40         function _i18n( str )
  41                 return luci.i18n.translate( "stat_" .. str, str )
  42         end
  43
  44         -- our collectd menu
  45         local collectd_menu = {
  46                 output  = { "rrdtool", "network", "unixsock", "csv" },
  47                 system  = { "exec", "email", "cpu", "df", "disk", "irq", "processes", "load" },
  48                 network = { "interface", "netlink", "iptables", "tcpconns", "ping", "dns", "wireless" }
  49         }
  50
  51         -- create toplevel menu nodes
  52         entry({"admin", "statistics"},             call("statistics_index"),        _i18n("statistics"), 80).i18n = "statistics"
  53         entry({"admin", "statistics", "collectd"}, cbi("luci_statistics/collectd"), _i18n("collectd"),   10)
  54
  55         -- populate collectd plugin menu
  56         local index = 1
  57         for section, plugins in luci.util.kspairs( collectd_menu ) do
  58                 entry(
  59                         { "admin", "statistics", "collectd", section },
  60                         call( "statistics_" .. section .. "plugins" ),
  61                         _i18n( section .. "plugins" ),
  62                         index * 10
  63                 )
  64
  65                 for j, plugin in luci.util.vspairs( plugins ) do
  66                         _entry(
  67                                 { "admin", "statistics", "collectd", section, plugin },
  68                                 cbi("luci_statistics/" .. plugin ),
  69                                 _i18n( plugin ),
  70                                 j * 10
  71                         )
  72                 end
  73
  74                 index = index + 1
  75         end
  76
  77         -- output views
  78         local page = entry( { "admin", "statistics", "graph" }, call("statistics_index"), _i18n("graphs"), 80)
  79               page.i18n     = "statistics"
  80               page.setuser  = "nobody"
  81               page.setgroup = "nogroup"
  82
  83         local vars = luci.http.getvalue()
  84         local span = vars.timespan or nil
  85
  86         for i, plugin in luci.util.vspairs( tree:plugins() ) do
  87
  88                 -- get plugin instances
  89                 local instances = tree:plugin_instances( plugin )
  90
  91                 -- plugin menu entry
  92                 entry(
  93                         { "admin", "statistics", "graph", plugin },
  94                         call("statistics_render"), _i18n( plugin ), i
  95                 ).query = { timespan = span }
  96
  97                 -- if more then one instance is found then generate submenu
  98                 if #instances > 1 then
  99                         for j, inst in luci.util.vspairs(instances) do
 100                                 -- instance menu entry
 101                                 entry(
 102                                         { "admin", "statistics", "graph", plugin, inst },
 103                                         call("statistics_render"), inst, j
 104                                 ).query = { timespan = span }
 105                         end
 106                 end
 107         end
 108 end
 109
 110 function statistics_index()
 111         luci.template.render("admin_statistics/index")
 112 end
 113
 114 function statistics_outputplugins()
 115         local plugins = { }
 116
 117         for i, p in ipairs({ "rrdtool", "network", "unixsock", "csv" }) do
 118                 plugins[p] = luci.i18n.translate( "stat_" .. p, p )
 119         end
 120
 121         luci.template.render("admin_statistics/outputplugins", {plugins=plugins})
 122 end
 123
 124 function statistics_systemplugins()
 125         local plugins = { }
 126
 127         for i, p in ipairs({ "exec", "email", "df", "disk", "irq", "processes", "cpu" }) do
 128                 plugins[p] = luci.i18n.translate( "stat_" .. p, p )
 129         end
 130
 131         luci.template.render("admin_statistics/systemplugins", {plugins=plugins})
 132 end
 133
 134 function statistics_networkplugins()
 135         local plugins = { }
 136
 137         for i, p in ipairs({ "interface", "netlink", "iptables", "tcpconns", "ping", "dns", "wireless" }) do
 138                 plugins[p] = luci.i18n.translate( "stat_" .. p, p )
 139         end
 140
 141         luci.template.render("admin_statistics/networkplugins", {plugins=plugins})
 142 end
 143
 144
 145 function statistics_render()
 146
 147         require("luci.statistics.rrdtool")
 148         require("luci.template")
 149         require("luci.model.uci")
 150
 151         local vars  = luci.http.getvalue()
 152         local req   = luci.dispatcher.context.request
 153         local path  = luci.dispatcher.context.dispatched.path
 154         local uci   = luci.model.uci
 155         local spans = luci.util.split( uci.get( "luci_statistics", "collectd_rrdtool", "RRATimespans" ), "%s+", nil, true )
 156         local span  = vars.timespan or uci.get( "luci_statistics", "rrdtool", "default_timespan" ) or spans[1]
 157         local graph = luci.statistics.rrdtool.Graph( luci.util.parse_units( span ) )
 158
 159         local plugin, instances
 160         local images = { }
 161
 162         -- find requested plugin and instance
 163         for i, p in ipairs( luci.dispatcher.context.dispatched.path ) do
 164                 if luci.dispatcher.context.dispatched.path[i] == "graph" then
 165                         plugin    = luci.dispatcher.context.dispatched.path[i+1]
 166                         instances = { luci.dispatcher.context.dispatched.path[i+2] }
 167                 end
 168         end
 169
 170         -- no instance requested, find all instances
 171         if #instances == 0 then
 172                 instances = { graph.tree:plugin_instances( plugin )[1] }
 173
 174         -- index instance requested
 175         elseif instances[1] == "-" then
 176                 instances[1] = ""
 177         end
 178
 179
 180         -- render graphs
 181         for i, inst in ipairs( instances ) do
 182                 for i, img in ipairs( graph:render( plugin, inst ) ) do
 183                         table.insert( images, graph:strippngpath( img ) )
 184                 end
 185         end
 186
 187         luci.template.render( "public_statistics/graph", {
 188                 images           = images,
 189                 plugin           = plugin,
 190                 timespans        = spans,
 191                 current_timespan = span
 192         } )
 193 end