fusionpbx/resources/install/scripts/call_flow_subscribe.lua

112 lines
3.0 KiB
Lua
Raw Normal View History

require "resources.functions.config"
require "resources.functions.split"
local log = require "resources.functions.log".call_flow_subscribe
local file = require "resources.functions.file"
local presence_in = require "resources.functions.presence_in"
local Database = require "resources.functions.database"
local ievents = function(events, ...)
if type(events) == 'string' then
events = freeswitch.EventConsumer(events)
end
local block, timeout = ...
if timeout and (timeout == 0) then block, timeout = 0, 0 end
timeout = timeout or 0
return function()
local event = events:pop(block, timeout)
return not event, event
end
end
local find_call_flow_sql = [[select t1.call_flow_uuid, t1.call_flow_status
from v_call_flows t1 inner join v_domains t2 on t1.domain_uuid = t2.domain_uuid
where t2.domain_name = '%s' and t1.call_flow_feature_code = '%s'
]]
local function find_call_flow(user)
local ext, domain_name = split_first(user, '@', true)
if not domain_name then return end
local dbh = Database.new('system')
if not dbh then return end
local sql = string.format(find_call_flow_sql, dbh:escape(domain_name), dbh:escape(ext))
local row = dbh:first_row(sql)
dbh:release()
if not row then return end
return row.call_flow_uuid, row.call_flow_status
end
local IntervalTimer = {} do
IntervalTimer.__index = IntervalTimer
function IntervalTimer.new(interval)
local o = setmetatable({}, IntervalTimer)
o._interval = interval
return o
end
function IntervalTimer:rest()
local d = self._interval - os.difftime(os.time(), self._begin)
if d < 0 then d = 0 end
return d
end
function IntervalTimer:start()
self._begin = os.time()
return self
end
function IntervalTimer:stop()
self._begin = nil
return self
end
end
local pid_file = scripts_dir .. "/run/call_flow_subscribe.tmp"
local pid = tostring(os.clock())
file.write(pid_file, pid)
log.notice("start call_flow_subscribe");
local timer = IntervalTimer.new(60):start()
for timeout, event in ievents("PRESENCE_PROBE", 1, timer:rest() * 1000) do
if timeout or timer:rest() == 0 then
local stored = file.read(pid_file)
if stored then
if stored ~= pid then break end
else
if not file.exists(pid_file) then break end
end
timer:start()
end
if event then
-- log.notice("event:" .. event:serialize("xml"));
if event:getHeader('proto') == 'flow' and
event:getHeader('Event-Calling-Function') == 'sofia_presence_handle_sip_i_subscribe'
then
local from, to = event:getHeader('from'), event:getHeader('to')
local expires = tonumber(event:getHeader('expires'))
if expires and expires > 0 then
local call_flow_uuid, call_flow_status = find_call_flow(to)
if call_flow_uuid then
log.debugf("Find call flow: %s", to)
presence_in.turn_lamp(call_flow_status == "false", to, call_flow_uuid);
else
log.warningf("Can not find call flow: %s", to)
end
else
log.noticef("%s UNSUBSCRIBE from %s", from, to)
end
end
end
end
log.notice("stop call_flow_subscribe")