게임 서버 이야기

Telegram(https://telegram.org) 이 국내에서 흥하게 되었는데, 이 텔레그램이 OPEN API 입니다.

telegram-cli 란 linux 용 프로그램입니다. 스크립트나 콘솔명령으로 메세지를 보낼 수 있습니다.

그럼 이걸로 뭘 하나 생각해 보니

1. 심심이 

2. 카톡 미연시

3. 서버 제어 : http://truefeel.tistory.com/224

4. 장애 알림

5. REST 를 이용한 MSG 발송 

등등.. 서버 프로그래머 입장에서 해보고 싶은게 많습니다.

서론은 여기까지.. 텔레그램을 깔아 봅시다.

Linux 에서 늘 하던데로 소스받고,  configure , make 하면 끝~

https://github.com/vysheng/tg 에 잘 설명 되있습니다.

OS 는 CentOS 에 설치 했습니다.

1. 소스받고 압축 풀고

 wget https://github.com/vysheng/tg/archive/master.zip -O tg-master.zip
 unzip tg-master.zip && cd tg-master

2. 빌드에 필요한 패키지 깔고

 sudo yum install lua-devel openssl-devel libconfig-devel readline-devel libevent-devel

3. 빌드하면 끝 !

 ./configure
 make

이건 CentOS 7 얘기... 현실은

event-old.h: In function 'event_new':
event-old.h:16: error: implicit declaration of function 'malloc'
event-old.h:16: error: incompatible implicit declaration of built-in function 'malloc'
event-old.h: In function 'evtimer_new':
event-old.h:24: error: incompatible implicit declaration of built-in function 'malloc'
event-old.h: In function 'event_free':
event-old.h:33: error: implicit declaration of function 'free'
event-old.h:33: error: incompatible implicit declaration of built-in function 'free'
tgl-timers.c: In function 'tgl_timer_free':
tgl-timers.c:59: error: implicit declaration of function 'event_get_callback_arg'
tgl-timers.c:59: error: initialization makes pointer from integer without a cast
make: *** [objs/tgl-timers.o] Error 1

이럴땐 !! 예전이었다면 아둥바둥 왜 안되는지 알아보고, 이것저것 고쳐보고...했겠지만 

이젠 Docker 를 사용합니다.

https://www.docker.com

설치와 사용법은 나중에 자세히 알아보고 docker 로 CentOS 7 환경을 올립니다. 

[root@localhost ~]# docker pull centos 

로 이미지 받아와서 들어가면 CentOS7 환경에서 작업할 수 있습니다.

[root@localhost ~]# docker run -i -t centos:centos7 /bin/bash
bash-4.2# cat /etc/redhat-release
CentOS Linux release 7.0.1406 (Core)

[root@localhost ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             ...
cd2b01f5645f        centos:centos7      /bin/bash           2 minutes ago       ...
9b05fb4f5b8f        centos:centos6      /bin/bash           12 minutes ago      ...
62368a818401        9b9939481a40        /bin/bash           16 hours ago        ...
e9d15253d9d7        cc7c33cb9d68        /bin/bash           16 hours ago        ...

당황하지 않고 사용한 컨테이너 ID를 찾아서 commit 하면 image 로 생성되어 다음에 작업했던데 부터 사용할 수 있습니다. 자세한 사용법은 나중에?

centos7 환경에선 잘 됩니다.

ar: creating libs/libtgl.a
a - ./objs/net.o
a - ./objs/mtproto-common.o
.......
a - ./objs/updates.o
a - ./objs/tgl-timers.o
a - ./objs/tools.o
gcc ./objs/main.o ./objs/loop.o ./objs/interface.o ./objs/lua-tg.o .........

bash-4.2# bin/telegram-cli
change_user_group: can't find the user telegramd to switch to
Telegram-cli version 1.1.0, Copyright (C) 2013-2014 Vitaly Valtman
Telegram-cli comes with ABSOLUTELY NO WARRANTY; for details type `show_license'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show_license' for details.
I: config dir=[//.telegram-cli]
Telephone number (with '+' sign): 

Telephone number (with '+' sign): +8210********
Code from sms (if you did not receive an SMS and want to be called, type "call"): 36692
> 

help    Prints this help
contact_list    Prints contact list
stats   For debug purpose
history <peer> [limit] [offset] Prints messages with this peer (most recent message lower). Also marks messages as read
dialog_list     List of last conversations
send_photo <peer> <file>        Sends photo to peer
send_video <peer> <file>        Sends video to peer
send_audio <peer> <file>        Sends audio to peer
send_document <peer> <file>     Sends document to peer
send_text <peer> <file> Sends contents of text file as plain text message
chat_info <chat>        Prints info about chat (id, members, admin, etc.)
user_info <user>        Prints info about user (id, last online, phone)
fwd <peer> <msg-id>     Forwards message to peer. Forward to secret chats is forbidden
fwd <peer> <msg-id>     Forwards message media to peer. Forward to secret chats is forbidden. Result slightly differs from fwd
msg <peer> <text>       Sends text message to peer
....

우선 주소를 등록하고 보내 봅니다.

> add_contact +8210******** yongdae kwon
yongdae kwon
> msg yongdae_kwon hello
[02:14]  yongdae kwon <<< hello

bash-4.2# echo "msg yongdae_kwon hello" | bin/telegram-cli -k ./tg-server.pub -W
change_user_group: can't find the user telegramd to switch to
Telegram-cli version 1.1.0, Copyright (C) 2013-2014 Vitaly Valtman
Telegram-cli comes with ABSOLUTELY NO WARRANTY; for details type `show_license'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show_license' for details.
I: config dir=[//.telegram-cli]
User Telegram updated photo
User SANGWOOK KWON updated photo
> msg yongdae_kwon hello
[03:22]  yongdae kwon <<< hello
> All done. Exit

잘 보내집니다.

node.js 의 express 와 연결해서 보내봅시다.

javascript 를 추가 하고

var exec = require('child_process').exec;
app.get('/msg', function( req, res ) {
        var _cmd = 'msg ' + req.param('id',null) + ' ' + req.param('msg',null);
        console.log( _cmd );
        exec( "echo '" + _cmd  + "' | telegram-cli -k /home/tg-master/tg-server.pub -W " , 
function(err, stdout, stderr) { 
if(err) { 
console.log(err.message); 
} 
} );
  res.send('send msg');
});

잘 보내지네요.

Lua Script 를 이용하면 ( 참고 : http://truefeel.tistory.com/224 )

function on_msg_receive (msg)
	if ( msg.text == 'hello' ) then
		send_msg(msg.from.print_name, "world", ok_cb, false)
		return
	end
end
function ok_cb(extra, success, result)
end

스크립트와 함께 돌리면

bash-4.2# bin/telegram-cli -s ../hello.lua
change_user_group: can't find the user telegramd to switch to
Telegram-cli version 1.1.0, Copyright (C) 2013-2014 Vitaly Valtman
Telegram-cli comes with ABSOLUTELY NO WARRANTY; for details type `show_license'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show_license' for details.
I: config dir=[//.telegram-cli]
 *** lua: attempt to call a nil value
 *** lua: attempt to call a nil value
 *** lua: attempt to call a nil value
[03:30]  yongdae kwon ««« hello
 *** lua: attempt to call a nil value
[04:07]  yongdae kwon <<< world