ZMQ manager
Author: Sungtae Kim <pchero21@gmail.com>

INFO:
- This moudule aims to replicate asterisk manager interface using zmq and json.
- For now, it just support any json-type of message pass to ami.
- This module has two sockets. One is for action&reply, and the other one is for eventy notify.
- It is asterisk-20.x compatible. For asterisk-13.x compatible, please use the asterisk-13 branch.

DESCRIPTION:
- ZMQ manager uses 2 zmq sockets.
- zmq_cmd, zmq_evt.
- Default address is (addr_cmd=tcp://*:967, addr_evt=tcp://*:968)
- zmq_cmd designed for REQ-REP pattern. (For AMI Action)
- zmq_evt designed for PUB-SUB pattern. (For AMI Event)
- AMI should be enabled.(MUST)
- If AMI disabled, no event message would be received.(only Action/Response working)
- zmq_cmd send message as an json_array.
- zmq_evt send message as an json_object.


DEPENDENCIES:
- zmq(zeromq-3.2.5)
- compiled Asterisk with json support.

REFERENCE:
- Flavio [FlaPer87] Percoco Premoli <flaper87@flaper87.org>


BUILDING:
- cd asterisk-zmq/ && make

INSTALLING:
- cp build/zmq_manager.so ASTERISK_INSTALL_PATH/lib/asterisk/modules/

USAGE:
- Create a config file. See conf/zmq_manager.conf
-- cp conf/zmq_manager.conf /etc/asterisk
- Add: load => res_zmq_manager.so to the modules.conf file
-- echo "load => res_zmq_manager.so" >> /etc/asterisk/modules.conf
- AMI enable(MUST)
-- edit /etc/asterisk/manager.conf.
-- change "enabled = no" to "enabled = yes"
- See samples.

Asterisk CLI HELP:
- Asterisk*CLI> zmq manager status
[cmd address: tcp://*:967]
[evt address: tcp://*:968]


SAMPLES:
- $ python samples/evt_receiver.py // Receive Asterisk event script.
- $ python samples/cmd_sippeers.py.py
- ...

TEST:
- Send AMI message in json style, to tcp://localhost967
--Send
{"Action": "SIPpeers"}
-- It will reply AMI response in json style.(Json array)
[
    {
        "Response":"Success",
        "EventList":"start",
        "Message":"Peer status list will follow"
    },
    {
        "IPport":"44151",
        "AutoComedia":"no",
        "Dynamic":"yes",
        "TextSupport":"no",
        "Event":"PeerEntry",
        "ChanObjectType":"peer",
        "Status":"Unmonitored",
        "Channeltype":"SIP",
        "AutoForcerport":"yes",
        "Comedia":"no",
        "VideoSupport":"no",
        "IPaddress":"127.0.0.1",
        "ObjectName":"test-01",
        "Forcerport":"no",
        "ACL":"no",
        "RealtimeDevice":"no",
        "Description":""
    },
    {
        "IPport":"0",
        "AutoComedia":"no",
        "Dynamic":"yes",
        "TextSupport":"no",
        "Event":"PeerEntry",
        "ChanObjectType":"peer",
        "Status":"Unmonitored",
        "Channeltype":"SIP",
        "AutoForcerport":"yes",
        "Comedia":"no",
        "VideoSupport":"no",
        "IPaddress":"-none-",
        "ObjectName":"test-02",
        "Forcerport":"no",
        "ACL":"no",
        "RealtimeDevice":"no",
        "Description":""
    },
    {
        "IPport":"0",
        "AutoComedia":"no",
        "Dynamic":"yes",
        "TextSupport":"no",
        "Event":"PeerEntry",
        "ChanObjectType":"peer",
        "Status":"Unmonitored",
        "Channeltype":"SIP",
        "AutoForcerport":"yes",
        "Comedia":"no",
        "VideoSupport":"no",
        "IPaddress":"-none-",
        "ObjectName":"test-03",
        "Forcerport":"no",
        "ACL":"no",
        "RealtimeDevice":"no",
        "Description":""
    },
    {
        "Event":"PeerlistComplete",
        "ListItems":"3",
        "EventList":"Complete"
    }

]

-- Send
{"Action":"SIPShowPeer","Peer":"test-01"}

-- Response
[
    {
        "SIP-Sess-Expires":"1800",
        "LastMsgsSent":"0",
        "SecretExist":"Y",
        "Parkinglot":"",
        "SIP-Forcerport":"a",
        "SIP-DirectMedia":"Y",
        "Named Pickupgroup":"",
        "SIP-AuthInsecure":"no",
        "Busy-level":"0",
        "Named Callgroup":"",
        "ACL":"N",
        "Dynamic":"Y",
        "Response":"Success",
        "AMAflags":"Unknown",
        "RemoteSecretExist":"N",
        "Default-addr-port":"0",
        "SIP-UserPhone":"N",
        "MaxCallBR":"384 kbps",
        "VoiceMailbox":"",
        "Channeltype":"SIP",
        "QualifyFreq":"60000 ms",
        "SIP-RTP-Engine":"asterisk",
        "SIP-CanReinvite":"Y",
        "Language":"",
        "Callgroup":"",
        "Context":"public",
        "ChanObjectType":"peer",
        "CID-CallingPres":"Presentation Allowed, Not Screened",
        "Default-addr-IP":"(null)",
        "ToneZone":"<Not set>",
        "ToHost":"",
        "SIP-Sess-Refresh":"uas",
        "SIP-Useragent":"",
        "TransferMode":"open",
        "SIP-T.38MaxDtgrm":"4294967295",
        "SIP-DTMFmode":"rfc2833",
        "ObjectName":"test-01",
        "MD5SecretExist":"N",
        "Address-IP":"127.0.0.1",
        "Call-limit":"0",
        "Maxforwards":"0",
        "Pickupgroup":"",
        "MOHSuggest":"",
        "SIP-VideoSupport":"N",
        "Description":"",
        "Callerid":"\"\" <>",
        "SIP-Comedia":"N",
        "Default-Username":"test-01",
        "RegExpire":"604 seconds",
        "SIP-Encryption":"N",
        "SIP-PromiscRedir":"N",
        "SIP-Sess-Timers":"Accept",
        "SIP-TextSupport":"N",
        "Reg-Contact":"sip:test-01@127.0.0.1:44151",
        "SIP-T.38Support":"N",
        "SIP-T.38EC":"Unknown",
        "SIP-Sess-Min":"90",
        "Address-Port":"44151",
        "Codecs":"(ulaw|alaw|gsm|h263)",
        "Status":"Unmonitored",
        "SIP-Use-Reason-Header":"N"
    }
]


LICENSING:
- BSD License