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-- hostname model methods
module (..., package.seeall)
require ("posix")
require ("fs")
-- no initializer in model - use controller.init for that
-- ################################################################################
-- UNKNOWN
--local function read_file_as_array ( path )
-- local file, error = io.open(path)
-- if ( file == nil ) then
-- return nil, error
-- end
-- local f = {}
-- for line in file:lines() do
-- table.insert ( f , line )
-- end
-- file:close()
-- return f
--end
local function has_init_script ( f )
local initprefix = "/etc/init.d/openvpn"
local file = initprefix .. "." .. f
if f ~= "openvpn" then
if ( fs.is_file(file)) then
init = "yes"
else
init = nil
end
else
if ( fs.is_file(initprefix)) then
init = "yes"
else
init = nil
end
end
return init
end
-- ################################################################################
-- LOCAL FUNCTIONS
local function config_content( f )
local config = {}
config.name = "/etc/openvpn/" .. f
local conf_file = fs.read_file_as_array ( config.name )
for i=1,table.maxn(conf_file) do
local l = conf_file[i]
-- Filter out commented lines
if not string.find ( l, "^[;#].*" ) then
local a,b = string.match ( l, "^%s*(%S*)%s+(%S*).*$" )
if (a) then
config[a]=b
end
end
end
if not ( config.log ) then
config.log = config["log-append"]
end
if not ( config["max-clients"] ) then
config["max-clients"] = "Unlimited"
end
if not ( config["tls-auth"] ) then
config["tls-auth"] = ""
end
if not ( config["crl-verify"] ) then
config["crl-verify"] = ""
end
if not ( config["local"] ) then
config["local"] = "0.0.0.0"
end
return config
end
local is_running = function( process, parameters )
local strsplit = require("split")
local retval = ""
local pidofsx,error = io.popen("pidof " .. process ,r)
local pidofs = strsplit(" ", pidofsx:read("*a"))
pidofsx:close()
if ( pidofs ~= nil ) then
for k,v in pairs(pidofs) do
local path = string.gsub("/proc/".. v .. "/cmdline", "%s", "")
local f = io.open(path)
if (f) then
local file_resultx = f:read("*a")
local file_result = string.match(file_resultx, parameters)
f:close()
end
if ( file_result ) then
retval = "Running"
end
end
end
return retval
end
local function check_valid_config ( f )
config.err = ""
if not (config.client) or not (config.ca) or not (config.cert) or not (config.key) or not (config.dev) or not (config.proto) or not (config.remote) then
config.type = nil
config.err = ""
if not (config.ca) then
config.err = config.err .. "Check CA; "
end
if not (config.cert) then
config.err = config.err .. "Check CERT; "
end
if not (config.key) then
config.err = config.err .. "Check KEY; "
end
if not (config.dev) then
config.err = config.err .. "Check DEV; "
end
if not (config.proto) then
config.err = config.err .. "Check PROTO; "
end
if (config.client) or not (config.ca) or not (config.cert) or not (config.key) or not (config.dev) or not (config.proto) or not (config.port) then
config.type = nil
else
config.type = "server"
config.err = ""
end
else
config.type = "client"
config.err = ""
end
if not (config.type) then config.type = "unknown" end
return config.type, config.err
end
local function list_conffiles()
local configfiles = {}
local config = {}
local files , errstr, errno = posix.dir ( "/etc/openvpn/" )
if files then
for k,v in ipairs(files) do
if string.match (v, "^.*conf$") then
table.insert ( configfiles, cfe{ name = v } )
end
end
return configfiles
end
end
-- ################################################################################
-- PUBLIC FUNCTIONS
function clientlist( self, path )
-- DEBUG
-- local path = "openvpn.conf"
local clientlist = {}
local f = ""
local f2 = ""
if ( path ) then
-- config = config_content ( config.name )
-- config = {}
config = config_content ( path )
end
if (config.status) then
local f = fs.read_file_as_array( config.status )
if ( f ) then
for k,v in ipairs(f) do
-- The reason for this compex regexp is that I want to filter away the first 2-3 rows
-- that doesn't mach this regexp.
local clientname,clientip,clientport,bytesreceived,bytessent = string.match ( v, "([^,]*)[,]+([%w]+[.*][%w]+[.*][%w]+[.*][%w]+)[:]([%w]+)[,](%w*)[,](%w*)" )
-- Routing table is now intresting at this moment. So stop reading file.
if ( v == "ROUTING TABLE" ) then
break
end
if ( clientname ~= nil ) then
table.insert ( clientlist, cfe{ name = clientname, ip = clientip , virtualip = "xXx.xXx.xXx.xXx", port = clientport, received = bytesreceived, sent = bytessent } )
end
end
end
end
local connclients = table.maxn(clientlist)
return clientlist, connclients
end
function openvpn_version()
local f,error = io.popen("/usr/sbin/openvpn --version")
openvpnversion = f:read("*l")
f:close()
if not (openvpnversion) then
openvpnversion = "Not installed!"
end
return openvpnversion
end
function get_serverconfig ( self, f )
local serverconfig = {}
config = config_content ( f )
-- FIXME: change nex row to clientlist(config.name)
local clientlist, connclients = clientlist ()
local isrunning = is_running ("openvpn", config.name)
-- FIXME: Get status for autostart_status = 'rc_status | grep this process'
local autostart_status = ""
serverconfig = cfe{ name = f, device = config.dev, log = config.log, verb = config.verb, maxclients = config["max-clients"], clients = connclients, status = isrunning, autostart = autostart_status, dh = config.dh, ca = config.ca, cert = config.cert, key = config.key, tls = config["tls-auth"] , crl = config["crl-verify"], port = config.port, proto = config.proto, loca = config["local"] }
return serverconfig
end
function get_logfile( self, path)
local logcontent = {}
config = config_content ( path )
local logfilecontent = fs.read_file ( config.log )
if not (logfilecontent) then
logfilecontent = "File is empty or missing!"
end
return ( { name = config.log, value = logfilecontent } )
end
function get_config( self, path)
local logcontent = {}
config = config_content ( path )
local logfilecontent = fs.read_file ( config.name )
if not (logfilecontent) then
logfilecontent = "File is empty or missing!"
end
return ( { name = config.name, value = logfilecontent } )
end
function get_conflist ()
local configlist = {}
for k,v in pairs(list_conffiles()) do
config = config_content ( v.name )
local conf_type, err = check_valid_config ( v.name )
local isrunning = is_running ("openvpn", v.name)
local clientlist, connclients = clientlist ()
table.insert ( configlist, cfe{ name = v.name, type = conf_type, test = config.ca, err = err, status = isrunning, clients = connclients } )
end
local countconfigs = table.maxn(configlist)
return configlist, countconfigs
end
get = function (self)
return list_conffiles()
end
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