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("nixio.fs")
  21         require("luci.util")
  22         require("luci.statistics.datatree")
  23
  24         -- get rrd data tree
  25         local tree = luci.statistics.datatree.Instance()
  26
  27         -- override entry(): check for existance <plugin>.so where <plugin> is derived from the called path
  28         function _entry( path, ... )
  29                 local file = path[5] or path[4]
  30                 if nixio.fs.access( "/usr/lib/collectd/" .. file .. ".so" ) then
  31                         entry( path, ... )
  32                 end
  33         end
  34
  35         local labels = {
  36                 s_output        = _("Output plugins"),
  37                 s_system        = _("System plugins"),
  38                 s_network       = _("Network plugins"),
  39
  40                 rrdtool         = _("RRDTool"),
  41                 network         = _("Network"),
  42                 unixsock        = _("UnixSock"),
  43                 csv                     = _("CSV Output"),
  44                 exec            = _("Exec"),
  45                 email           = _("Email"),
  46                 cpu                     = _("Processor"),
  47                 df                      = _("Disk Space Usage"),
  48                 disk            = _("Disk Usage"),
  49                 irq                     = _("Interrupts"),
  50                 processes       = _("Processes"),
  51                 load            = _("System Load"),
  52                 interface       = _("Interfaces"),
  53                 netlink         = _("Netlink"),
  54                 iptables        = _("Firewall"),
  55                 tcpconns        = _("TCP Connections"),
  56                 ping            = _("Ping"),
  57                 dns                     = _("DNS"),
  58                 wireless        = _("Wireless"),
  59                 olsrd           = _("OLSRd")
  60         }
  61
  62         -- our collectd menu
  63         local collectd_menu = {
  64                 output  = { "rrdtool", "network", "unixsock", "csv" },
  65                 system  = { "exec", "email", "cpu", "df", "disk", "irq", "processes", "load" },
  66                 network = { "interface", "netlink", "iptables", "tcpconns", "ping", "dns", "wireless", "olsrd" }
  67         }
  68
  69         -- create toplevel menu nodes
  70         local st = entry({"admin", "statistics"}, call("statistics_index"), _("Statistics"), 80)
  71         st.i18n = "statistics"
  72         st.index = true
  73
  74         entry({"admin", "statistics", "collectd"}, cbi("luci_statistics/collectd"), _("Collectd"), 10).subindex = true
  75
  76
  77         -- populate collectd plugin menu
  78         local index = 1
  79         for section, plugins in luci.util.kspairs( collectd_menu ) do
  80                 local e = entry(
  81                         { "admin", "statistics", "collectd", section },
  82                         call( "statistics_" .. section .. "plugins" ),
  83                         labels["s_"..section], index * 10
  84                 )
  85
  86                 e.index = true
  87                 e.i18n  = "rrdtool"
  88
  89                 for j, plugin in luci.util.vspairs( plugins ) do
  90                         _entry(
  91                                 { "admin", "statistics", "collectd", section, plugin },
  92                                 cbi("luci_statistics/" .. plugin ),
  93                                 labels[plugin], j * 10
  94                         )
  95                 end
  96
  97                 index = index + 1
  98         end
  99
 100         -- output views
 101         local page = entry( { "admin", "statistics", "graph" }, call("statistics_index"), _("Graphs"), 80)
 102               page.i18n     = "statistics"
 103               page.setuser  = "nobody"
 104               page.setgroup = "nogroup"
 105
 106         local vars = luci.http.formvalue(nil, true)
 107         local span = vars.timespan or nil
 108
 109         for i, plugin in luci.util.vspairs( tree:plugins() ) do
 110
 111                 -- get plugin instances
 112                 local instances = tree:plugin_instances( plugin )
 113
 114                 -- plugin menu entry
 115                 entry(
 116                         { "admin", "statistics", "graph", plugin },
 117                         call("statistics_render"), labels[plugin], i
 118                 ).query = { timespan = span }
 119
 120                 -- if more then one instance is found then generate submenu
 121                 if #instances > 1 then
 122                         for j, inst in luci.util.vspairs(instances) do
 123                                 -- instance menu entry
 124                                 entry(
 125                                         { "admin", "statistics", "graph", plugin, inst },
 126                                         call("statistics_render"), inst, j
 127                                 ).query = { timespan = span }
 128                         end
 129                 end
 130         end
 131 end
 132
 133 function statistics_index()
 134         luci.template.render("admin_statistics/index")
 135 end
 136
 137 function statistics_outputplugins()
 138         local translate = luci.i18n.translate
 139         local plugins = {
 140                 rrdtool         = translate("RRDTool"),
 141                 network         = translate("Network"),
 142                 unixsock        = translate("UnixSock"),
 143                 csv                     = translate("CSV Output")
 144         }
 145
 146         luci.template.render("admin_statistics/outputplugins", {plugins=plugins})
 147 end
 148
 149 function statistics_systemplugins()
 150         local translate = luci.i18n.translate
 151         local plugins = {
 152                 exec            = translate("Exec"),
 153                 email           = translate("Email"),
 154                 cpu                     = translate("Processor"),
 155                 df                      = translate("Disk Space Usage"),
 156                 disk            = translate("Disk Usage"),
 157                 irq                     = translate("Interrupts"),
 158                 processes       = translate("Processes"),
 159                 load            = translate("System Load"),
 160         }
 161
 162         luci.template.render("admin_statistics/systemplugins", {plugins=plugins})
 163 end
 164
 165 function statistics_networkplugins()
 166         local translate = luci.i18n.translate
 167         local plugins = {
 168                 interface       = translate("Interfaces"),
 169                 netlink         = translate("Netlink"),
 170                 iptables        = translate("Firewall"),
 171                 tcpconns        = translate("TCP Connections"),
 172                 ping            = translate("Ping"),
 173                 dns                     = translate("DNS"),
 174                 wireless        = translate("Wireless"),
 175                 olsrd           = translate("OLSRd")
 176         }
 177
 178         luci.template.render("admin_statistics/networkplugins", {plugins=plugins})
 179 end
 180
 181
 182 function statistics_render()
 183
 184         require("luci.statistics.rrdtool")
 185         require("luci.template")
 186         require("luci.model.uci")
 187
 188         local vars  = luci.http.formvalue()
 189         local req   = luci.dispatcher.context.request
 190         local path  = luci.dispatcher.context.path
 191         local uci   = luci.model.uci.cursor()
 192         local spans = luci.util.split( uci:get( "luci_statistics", "collectd_rrdtool", "RRATimespans" ), "%s+", nil, true )
 193         local span  = vars.timespan or uci:get( "luci_statistics", "rrdtool", "default_timespan" ) or spans[1]
 194         local graph = luci.statistics.rrdtool.Graph( luci.util.parse_units( span ) )
 195
 196         local is_index = false
 197
 198         -- deliver image
 199         if vars.img then
 200                 local l12 = require "luci.ltn12"
 201                 local png = io.open(graph.opts.imgpath .. "/" .. vars.img:gsub("%.+", "."), "r")
 202                 if png then
 203                         luci.http.prepare_content("image/png")
 204                         l12.pump.all(l12.source.file(png), luci.http.write)
 205                         png:close()
 206                 end
 207                 return
 208         end
 209
 210         local plugin, instances
 211         local images = { }
 212
 213         -- find requested plugin and instance
 214     for i, p in ipairs( luci.dispatcher.context.path ) do
 215         if luci.dispatcher.context.path[i] == "graph" then
 216             plugin    = luci.dispatcher.context.path[i+1]
 217             instances = { luci.dispatcher.context.path[i+2] }
 218         end
 219     end
 220
 221         -- no instance requested, find all instances
 222         if #instances == 0 then
 223                 --instances = { graph.tree:plugin_instances( plugin )[1] }
 224                 instances = graph.tree:plugin_instances( plugin )
 225                 is_index = true
 226
 227         -- index instance requested
 228         elseif instances[1] == "-" then
 229                 instances[1] = ""
 230                 is_index = true
 231         end
 232
 233
 234         -- render graphs
 235         for i, inst in ipairs( instances ) do
 236                 for i, img in ipairs( graph:render( plugin, inst, is_index ) ) do
 237                         table.insert( images, graph:strippngpath( img ) )
 238                         images[images[#images]] = inst
 239                 end
 240         end
 241
 242         luci.template.render( "public_statistics/graph", {
 243                 images           = images,
 244                 plugin           = plugin,
 245                 timespans        = spans,
 246                 current_timespan = span,
 247                 is_index         = is_index
 248         } )
 249 end