* Fix. Cache class.
* `send_event` raise error so `Cache.del` did not remove key or send any event
* use `memcache` method by default even if `cache` table does not defined in config
* `Cache.get` did not return any data when use `memcache` method
* `Cache.get` did not close file. (Its should not be a big problem because GC should do it by self).
* `Cache.get` can returns some undefined global value. (if method is `file` and file not exists then method returns global `result` value)
* `Cache.get` does not need check for file existence
* Value escaping does not needed for `file` method
* Needed different key escaping for `memcache` and `file` methods
* Update self test
* Change. Use random names for temp files.
* Add. BLF indication for call forward.
To display general status of CallForward use blf like `forward+<extension>`
To display status for specific phone number use blf like `forward+<extension>/<number>`
* Fix. Escape variable in regex expression.
* Fix. Sync DND and CF blf.
* Add. `blf_subscribe` service which can handle all custom subscriptions.
To run for specific protocol it possible run as `luarun blf_subscribe.lua <PROTO>`
* Fix. Fetch correct arrays from settings.
Add. Use params in `settings.lua`
* Fix. array from domain settings overwrite entire array from default settings instead of appends it.
* add built in ability for microsoft bing speech to text
* move json.lua to lower case and more error checking in record_message
* Replaced Creative Commons json.lua with lunajson.lua which is MIT license
https://github.com/grafi-tt/lunajson/blob/master/LICENSE
* Add. attr_xfer analog based on conference.
Control DTMF sequence
`*0` transfer `self` to `enter number` state and `peer` leg to conference room
`##` transfer `self` to `enter number` state and hangup `peer` leg
`*#` transfer `self` to conference room and hangup `peer` leg
* Remove spaces.
* Add. Commented action to ring group.
* Change. Use `service::control` event to control services
This is more FS way. E.g. sofia sends `sofia::register` event
and add all information to headers. So now `service` script
emit `fusion::service::control` event and each service responsible
for test its own name. This also allows add in future evnets to
e.g. monitor service status like `fusion::service::satus` so it
will be possible write service which will be restart services.
* Change. rename service name from `flow` to `call_flow`
* Simplify `is_uuid` function.
Also because it returns now value itself it possible write
```Lua
my_uuid = is_uuid(value1) or is_uuid(value2)
```
* Change. Ensure `is_uuid` returns only boolean value
* Change. Pass pid file first. Because there really no need pass timeout.
Add. `fsc` script to be able shutdown MWI and Call Flow subscribe services.
* Change. rename `fsc` to `service`.
* Change. Use `stop` command instead of `shutdown`
* Add. Support `onInterval` method to EventConsumer class
Usage
```Lua
-- execute action each 30 sec
events:onInterval(30*1000, function() end)
-- execute action once after 5 min
events:onIntervalOnce(5*60*1000, function() end)
```
* Fix. Remove timers
* Fix. Reset timer before callback
It allows stop timer inside callback.
Also it produce more accurate interval invocation
if callback take quite a long time.
E.g. Interval = 10 sec and callback took 5 sec then
if we reset timer after this callback then gap between
invocation will be 15 sec.
* Add. Timers now have TimeEvent class type.
Add. `reset` method to IntervalTimer class.
```Lua
events:onIntervalOnce(1000, function(self, timer)
-- timer has type TimeEvent
-- restart timer so it will be invoke again
timer:restart()
-- or reset new interval
-- timer:reset(5000)
end)
```
* Fix. Typo in variable name
Rewrite MWI and CallFlow subscribe handlers based on EventConsumer class.
Also on my test VirtualBox/Debian system Lua function `os.clock` produce
very strange result(delta ~0.015 for 1 second) so I switch to `os.time`.
Now to to stop this background Lua scripts it possible send CUSTOM event
with subclass `fusion::XXX::shutdown`. Where XXX is `mwi` or `flow`.
Usage of EventConsumer class
```Lua
-- create new object with timeout one minute
local events = EventConsumer.new(60000)
-- bind to some FS event
events:bind("SHUTDOW", function(self, name, event) ... end)
-- bind to another FS event with subclass
events:bind("CUSTOM::fusion::mwi::shutdown", function(self, name, event) ... end)
-- handle timeout event
events:on("TIMEOUT", function(self, name) ... end)
--run event loop
events:run()
```
* Add. Handler for SUBSCRIBE method for call flow application.
Usage:
1. Run form fs_cli `luarun call_flow_subscribe`
2. Create new call flow extension and set feature code to `flow+<EXTENSION>`(e.g. `flow+401`).
3. Set on the phone BLF key to `flow+401`
This code based on `mod_valet_parking`.
* Add. prevent running 2 copy of script.
Remove some unused vars and simplify implementation.
* Fix. Use correct protocol for send event.
* Fix. Do escape SQL arguments
* Fix. escape `+` sign in call flow extension.
To configure use `database.backend` option
It can be a string value like `database.backend = 'native'`.
So it will always use same backend.
Or it can be a table value like
```Lua
database.backend = {
main = 'native';
base64 = '';
}
```
Role `database.backend.main` is predefined and it equal to `native` if not set.
If there no role when Database class creates or role unknown role `main` is used
```Lua
dbh = Database.new('system') -- uses role `main`
dbh = Database.new('system', 'main') -- same as previews
dbh = Database.new('system', 'base64') -- uses role `base64`
dbh = Database.new('system', 'test') -- uses role `main`
```
```Lua
local Database = require 'resources.functions.database'
-- Default backend configured via xml_handler.db_backend = 'native'
dbh = Database.new("system")
-- To use other backends you can use
dbh = Database.backend.luasql("system")
```
