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--[[
LuCI - Lua Configuration Interface
Asterisk PBX interface library
Copyright 2009 Jo-Philipp Wich <xm@subsignal.org>
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.asterisk", package.seeall)
local _io = require("io")
local sys = require("luci.sys")
local util = require("luci.util")
AST_BIN = "/usr/sbin/asterisk"
AST_FLAGS = "-r -x"
--- LuCI Asterisk io interface
-- Handles low level io.
-- @type module
io = luci.util.class()
--- Execute command and return output
-- @param command String containing the command to execute
-- @return String containing the command output
function io.exec(command)
local fh = _io.popen( "%s %s %q" %{ AST_BIN, AST_FLAGS, command }, "r" )
assert(fh, "Failed to invoke asterisk")
local buffer = fh:read("*a")
fh:close()
return buffer
end
--- Execute command and invoke given callback for each readed line
-- @param command String containing the command to execute
-- @param callback Function to call back for each line
-- @return Always true
function io.execl(command, callback)
local ln
local fh = _io.popen( "%s %s %q" %{ AST_BIN, AST_FLAGS, command }, "r" )
assert(fh, "Failed to invoke asterisk")
repeat
ln = fh:read("*l")
callback(ln)
until not ln
fh:close()
return true
end
--- Execute command and return an iterator that returns one line per invokation
-- @param command String containing the command to execute
-- @return Iterator function
function io.execi(command)
local fh = _io.popen( "%s %s %q" %{ AST_BIN, AST_FLAGS, command }, "r" )
assert(fh, "Failed to invoke asterisk")
return function()
local ln = fh:read("*l")
if not ln then fh:close() end
return ln
end
end
--- LuCI Asterisk - core status
core = luci.util.class()
--- Retrive version string.
-- @return String containing the reported asterisk version
function core.version(self)
local version = io.exec("core show version")
return version:gsub(" *\n", "")
end
--- LuCI Asterisk - SIP information.
-- @type module
sip = luci.util.class()
--- Get a list of known SIP peers
-- @return Table containing each SIP peer
function sip.peers(self)
local head = false
local peers = { }
for line in io.execi("sip show peers") do
if not head then
head = true
elseif not line:match(" sip peers ") then
local online, delay, id, uid
local name, host, dyn, nat, acl, port, status =
line:match("(.-) +(.-) +([D ]) ([N ]) (.) (%d+) +(.+)")
if host == '(Unspecified)' then host = nil end
if port == '0' then port = nil else port = tonumber(port) end
dyn = ( dyn == 'D' and true or false )
nat = ( nat == 'N' and true or false )
acl = ( acl ~= ' ' and true or false )
online, delay = status:match("(OK) %((%d+) ms%)")
if online == 'OK' then
online = true
delay = tonumber(delay)
elseif status ~= 'Unmonitored' then
online = false
delay = 0
else
online = nil
delay = 0
end
id, uid = name:match("(.+)/(.+)")
if not ( id and uid ) then
id = name .. "..."
uid = nil
end
peers[#peers+1] = {
online = online,
delay = delay,
name = id,
user = uid,
dynamic = dyn,
nat = nat,
acl = acl,
host = host,
port = port
}
end
end
return peers
end
--- Get informations of given SIP peer
-- @param peer String containing the name of the SIP peer
function sip.peer(peer)
local info = { }
local keys = { }
for line in io.execi("sip show peer " .. peer) do
if #line > 0 then
local key, val = line:match("(.-) *: +(.*)")
if key and val then
key = key:gsub("^ +",""):gsub(" +$", "")
val = val:gsub("^ +",""):gsub(" +$", "")
if key == "* Name" then
key = "Name"
elseif key == "Addr->IP" then
info.address, info.port = val:match("(.+) Port (.+)")
info.port = tonumber(info.port)
elseif key == "Status" then
info.online, info.delay = val:match("(OK) %((%d+) ms%)")
if info.online == 'OK' then
info.online = true
info.delay = tonumber(info.delay)
elseif status ~= 'Unmonitored' then
info.online = false
info.delay = 0
else
info.online = nil
info.delay = 0
end
end
if val == 'Yes' or val == 'yes' or val == '<Set>' then
val = true
elseif val == 'No' or val == 'no' then
val = false
elseif val == '<Not set>' or val == '(none)' then
val = nil
end
keys[#keys+1] = key
info[key] = val
end
end
end
return info, keys
end
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