applications/luci-app-openvpn/luasrc/model/cbi/openvpn.lua

   1 -- Copyright 2008 Steven Barth <steven@midlink.org>
   2 -- Licensed to the public under the Apache License 2.0.
   3
   4 local fs  = require "nixio.fs"
   5 local sys = require "luci.sys"
   6 local uci = require "luci.model.uci".cursor()
   7 local testfullps = luci.sys.exec("ps --help 2>&1 | grep BusyBox") --check which ps do we have
   8 local psstring = (string.len(testfullps)>0) and  "ps w" or  "ps axfw" --set command we use to get pid
   9
  10 local m = Map("openvpn", translate("OpenVPN"))
  11 local s = m:section( TypedSection, "openvpn", translate("OpenVPN instances"), translate("Below is a list of configured OpenVPN instances and their current state") )
  12 s.template = "cbi/tblsection"
  13 s.template_addremove = "openvpn/cbi-select-input-add"
  14 s.addremove = true
  15 s.add_select_options = { }
  16 s.extedit = luci.dispatcher.build_url(
  17         "admin", "services", "openvpn", "basic", "%s"
  18 )
  19
  20 uci:load("openvpn_recipes")
  21 uci:foreach( "openvpn_recipes", "openvpn_recipe",
  22         function(section)
  23                 s.add_select_options[section['.name']] =
  24                         section['_description'] or section['.name']
  25         end
  26 )
  27
  28 function s.getPID(section) -- Universal function which returns valid pid # or nil
  29         local pid = sys.exec("%s | grep -w '[o]penvpn(%s)'" % { psstring, section })
  30         if pid and #pid > 0 then
  31                 return tonumber(pid:match("^%d+"))
  32         else
  33                 return nil
  34         end
  35 end
  36
  37 function s.parse(self, section)
  38         local recipe = luci.http.formvalue(
  39                 luci.cbi.CREATE_PREFIX .. self.config .. "." ..
  40                 self.sectiontype .. ".select"
  41         )
  42
  43         if recipe and not s.add_select_options[recipe] then
  44                 self.invalid_cts = true
  45         else
  46                 TypedSection.parse( self, section )
  47         end
  48 end
  49
  50 function s.create(self, name)
  51         local recipe = luci.http.formvalue(
  52                 luci.cbi.CREATE_PREFIX .. self.config .. "." ..
  53                 self.sectiontype .. ".select"
  54         )
  55         name = luci.http.formvalue(
  56                 luci.cbi.CREATE_PREFIX .. self.config .. "." ..
  57                 self.sectiontype .. ".text"
  58         )
  59         if string.len(name)>3 and not name:match("[^a-zA-Z0-9_]") then
  60                 uci:section(
  61                         "openvpn", "openvpn", name,
  62                         uci:get_all( "openvpn_recipes", recipe )
  63                 )
  64
  65                 uci:delete("openvpn", name, "_role")
  66                 uci:delete("openvpn", name, "_description")
  67                 uci:save("openvpn")
  68
  69                 luci.http.redirect( self.extedit:format(name) )
  70         else
  71                 self.invalid_cts = true
  72         end
  73 end
  74
  75
  76 s:option( Flag, "enabled", translate("Enabled") )
  77
  78 local active = s:option( DummyValue, "_active", translate("Started") )
  79 function active.cfgvalue(self, section)
  80         local pid = s.getPID(section)
  81         if pid ~= nil then
  82                 return (sys.process.signal(pid, 0))
  83                         and translatef("yes (%i)", pid)
  84                         or  translate("no")
  85         end
  86         return translate("no")
  87 end
  88
  89 local updown = s:option( Button, "_updown", translate("Start/Stop") )
  90 updown._state = false
  91 updown.redirect = luci.dispatcher.build_url(
  92         "admin", "services", "openvpn"
  93 )
  94 function updown.cbid(self, section)
  95         local pid = s.getPID(section)
  96         self._state = pid ~= nil and sys.process.signal(pid, 0)
  97         self.option = self._state and "stop" or "start"
  98         return AbstractValue.cbid(self, section)
  99 end
 100 function updown.cfgvalue(self, section)
 101         self.title = self._state and "stop" or "start"
 102         self.inputstyle = self._state and "reset" or "reload"
 103 end
 104 function updown.write(self, section, value)
 105         if self.option == "stop" then
 106                 local pid = s.getPID(section)
 107                 if pid ~= nil then
 108                         sys.process.signal(pid,15)
 109                 end
 110         else
 111                 luci.sys.call("/etc/init.d/openvpn start %s" % section)
 112         end
 113         luci.http.redirect( self.redirect )
 114 end
 115
 116
 117 local port = s:option( DummyValue, "port", translate("Port") )
 118 function port.cfgvalue(self, section)
 119         local val = AbstractValue.cfgvalue(self, section)
 120         return val or "1194"
 121 end
 122
 123 local proto = s:option( DummyValue, "proto", translate("Protocol") )
 124 function proto.cfgvalue(self, section)
 125         local val = AbstractValue.cfgvalue(self, section)
 126         return val or "udp"
 127 end
 128
 129
 130 return m