FishChatServer

FishChat(鱼传 - 鱼传尺素) - FishChat是一款优秀的即时通讯软件(IM), 它集合了市面上已有产品的优点, 并具备智能硬件网关管理(学习QQ物联**, 构思中).

NOTE: 鱼传取自古乐府《饮马长城窟行》客从远方来, 遗我双鲤鱼. 呼儿烹鲤鱼, 中有尺素书.

FishChat Android客户端见 https://github.com/oikomi/FishChatAndroid (紧张开发中)

Status

It is not usable yet and still under early development.

Todo

系统架构

关键服务器详解

gateway

gateway server主要是接受client请求，进行通用的功能设置，目前这块只做了分配msg_server的功能，后面可根据需要进行扩展

在gateway server的配置文件中最重要的是配置msg_server列表

"MsgServerList"      : [
		"192.168.159.169:19000",
		"192.168.159.169:19001"
	],

msg_server

msg_server是消息的主体，维护着客户端连接和keeplive,同时要注意router、manager和monitor都订阅了msg_server的channel


	SYSCTRL_CLIENT_STATUS = "/sysctrl/client-status"
	SYSCTRL_TOPIC_STATUS  = "/sysctrl/topic-status"
	SYSCTRL_TOPIC_SYNC    = "/sysctrl/topic-sync"
	SYSCTRL_SEND          = "/sysctrl/send"
	SYSCTRL_MONITOR       = "/sysctrl/monitor"

这些channel保证了msg_server在事件触发时会广播通知后面的router、manager和monitor服务

router

router顾名思义是做了msg_server之间的消息转发

manager

manager主要是管理client信息存储、topic信息存储、离线消息存储等等，通过它和redis联系

monitor

monitor主要是收集监控各服务器状态信息，目前monitor是可选项，可按需要启动它

部署

FishChatServer采用分布式可伸缩部署方式(各类服务器角色都可以动态增减)。如果没有多机条件，可以单机部署：

建议：单机测试部署(建议配置)

gateway一台
msg_server两台
router一台
manager一台
monitor一台

NOTE: FishChatServer依赖redis,请先启动redis,让它监听在默认端口

NOTE: 可以通过修改各文件夹下面的json配置文件配置服务器参数

./gateway

./msg_server -conf_file=msg_server.19001.json

./msg_server -conf_file=msg_server.19000.json

./router

./manager

./monitor

按上面的默认启动方式，查看系统的监听端口如下

当然你可以修改各文件夹下面的json配置文件修改配置参数

NOTE: router、manager和monitor一定要在msg_server启动之后启动，因为他们都订阅了msg_server的channel

技术细节

FishChatServer完全采用Golang开发(https://golang.org/)

音视频方案

音视频采用nginx-rtmp架构,借助ffmpeg技术,客户端推送rtmp流,服务器输出hls流

关键协议

1. client to gateway

REQ_MSG_SERVER_CMD

format: REQ_MSG_SERVER

client use this cmd to get a msg_server addr from gateway

SELECT_MSG_SERVER_FOR_CLIENT_CMD

format: SELECT_MSG_SERVER_FOR_CLIENT msg_server_ip

gateway return msg_server addr to client

2. client to msg_server

SEND_PING_CMD

format: SEND_PING

client use this cmd to keep alive status in msg_server.

SEND_CLIENT_ID_CMD

format: SEND_CLIENT_ID CLIENT_ID

client use this cmd to send unique ID to msg_server.

LOCATE_TOPIC_MSG_ADDR_CMD

format: LOCATE_TOPIC_MSG_ADDR MsgServerAddr topic_name

send the msg_server addr that having the topic you want.

CREATE_TOPIC_CMD

format: CREATE_TOPIC topic_name

client use this cmd to CREATE TOPIC.

JOIN_TOPIC_CMD

format: JOIN_TOPIC topic_name ID

client use this cmd to JOIN TOPIC.

2. router,manager,monitor to msg_server

SUBSCRIBE_CHANNEL_CMD

format: SUBSCRIBE_CHANNEL channelName

router,manager,monitor use this cmd to SUBSCRIBE channel from msg_server.

ROUTE_MESSAGE_P2P_CMD

format: ROUTE_MESSAGE_P2P send2ID send2Msg

router use this cmd to router message between msg_servers.

Copyright & License

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

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

yhcflyy/FishChatServer