Open-IM-Server

Open-IM-Server: Open source Instant Messaging Server

Instant messaging server. Backend in pure Golang, wire transport protocol is JSON over websocket.

Everything is a message in Open-IM-Server, so you can extend custom messages easily, there is no need to modify the server code.

Using microservice architectures, Open-IM-Server can be deployed using clusters.

By deployment of the Open-IM-Server on the customer's server, developers can integrate instant messaging and real-time network capabilities into their own applications free of charge and quickly, and ensure the security and privacy of business data.

Features

Everything in Free
Scalable architecture
Easy integration
Good scalability
High performance
Lightweight
Supports multiple protocols

Community

Join the Telegram-OpenIM group: https://t.me/joinchat/zSJLPaHBNLZmODI1
中文官网访问这里：Open-IM中文官网

Quick start

Installing Open-IM-Server

Open-IM relies on five open source high-performance components: ETCD, MySQL, MongoDB, Redis, Kafka. Before you deploy Open-IM-Server privately, please make sure that you have installed the above five components and check the component connection parameters in the configuration file. you must install the missing components first,If your server does not have the above components. It is recommended to use it directly, if you have the above components, if not, Docker-compose is recommended, which you don't need to install dependenciesis and more convenient.

Building from Source

Install Go environment. Make sure Go version is at least 1.15.

Git clone Open-IM project

git clone https://github.com/OpenIMSDK/Open-IM-Server.git

Open config.yaml,then modify the following parameters,127.0.0.1 replace with your host IP.
- Check or modify the Etcd connection parameters.
```
etcd:
  etcdAddr: [ 127.0.0.1:2379 ]
```
- Check or modify database(MySQL) connection parameters are correct for your database.
```
mysql:
  dbAddress: [ 127.0.0.1:3306 ]
```
- Check or modify database(MongoDB) connection parameters are correct for your database.No authentication mode if dbUserName and dbPassword is empty else authentication
```
mongo:
dbAddress: [ 127.0.0.1:27017 ]
```
- Check or modify Redis connection parameters.No authentication mode if dbPassword is empty else authentication
```
redis:
  dbAddress: [ 127.0.0.1:6379 ]
```
- Check or modify Kafka connection parameters.
```
kafka:
  ws2mschat:
    addr: [ 127.0.0.1:9092 ]
  ms2pschat:
    addr: [ 127.0.0.1:9092 ]
```

Build and start Service.

Shell authorization

#cd Open-IM-server/scrip

chmod +x *.sh

Execute the build shell
```
./build_all_service.sh
```
Start service
```
./start_all.sh
```

Using Docker to run Open-IM-Server(One-click deployment)

All images are available at https://hub.docker.com/r/lyt1123/open_im_server

Install Docker 1.13 or above.
Install Docker Compose 1.22 or above.
Download redis configuration download the redis configuration file to /home/redis/config

Git clone Open-IM project

git clone https://github.com/OpenIMSDK/Open-IM-Server.git

Open docker-compose,then modify the following parameters,127.0.0.1 replace with your host IP.
- Check or modify docker-compose Kafka connection parameters.
```
 KAFKA_ZOOKEEPER_CONNECT: 127.0.0.1:2181
 KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://127.0.0.1:9092
```
Open config.yaml,then modify the following parameters,127.0.0.1 replace with your host IP.
- Check or modify the Etcd connection parameters.
```
etcd:
  etcdAddr: [ 127.0.0.1:2379 ]
```
- Check or modify database(MySQL) connection parameters are correct for your database.
```
mysql:
  dbAddress: [ 127.0.0.1:3306 ]
```
- Check or modify database(MongoDB) connection parameters are correct for your database.No authentication mode if dbUserName and dbPassword is empty else authentication
```
mongo:
dbAddress: [ 127.0.0.1:27017 ]
```
- Check or modify Redis connection parameters.No authentication mode if dbPassword is empty else authentication
```
redis:
  dbAddress: [ 127.0.0.1:6379 ]
```
- Check or modify Kafka connection parameters.
```
kafka:
  ws2mschat:
    addr: [ 127.0.0.1:9092 ]
  ms2pschat:
    addr: [ 127.0.0.1:9092 ]
```
Start docker-compose with one click(Docker automatically pulls all images)
```
docker-compose up -d
```

CONFIGURATION INSTRUCTIONS

Open-IM configuration is divided into basic component configuration and business internal service configuration. Developers need to fill in the address of each component as the address of their server component when using the product, and ensure that the internal service port of the business is not occupied

Basic Component Configuration Instructions

ETCD
- Etcd is used for the discovery and registration of rpc services, etcd Schema is the prefix of the registered name, it is recommended to modify it to your company name, etcd address (ip+port) supports clustered deployment, you can fill in multiple ETCD addresses separated by commas, and also only one etcd address.
MySQL
- mysql is used for full storage of messages and user relationships. Cluster deployment is not supported for the time being. Modify addresses and users, passwords, and database names.
Mongo
- Mongo is used for offline storage of messages. The default storage is 7 days. Cluster deployment is temporarily not supported. Just modify the address and database name.
Redis
- Redis is currently mainly used for message serial number storage and user token information storage. Cluster deployment is temporarily not supported. Just modify the corresponding redis address and password.
Kafka
- Kafka is used as a message transfer storage queue to support cluster deployment, just modify the corresponding address

Internal Service Configuration Instructions

credential&&push
- The Open-IM needs to use the three-party offline push function. Currently, Tencent's three-party push is used. It supports IOS, Android and OSX push. This information is some registration information pushed by Tencent. Developers need to go to Tencent Cloud Mobile Push to register the corresponding information. If you do not fill in the corresponding information, you cannot use the offline message push function
api&&rpcport&&longconnsvr&&rpcregistername
- The api port is the http interface, longconnsvr is the websocket listening port, and rpcport is the internal service startup port. Both support cluster deployment. Make sure that these ports are not used. If you want to open multiple services for a single service, fill in multiple ports separated by commas. rpcregistername is the service name registered by each service to the registry etcd, no need to modify
log&&modulename
- The log configuration includes the storage path of the log file, and the log is sent to elasticsearch for log viewing. Currently, the log is not supported to be sent to elasticsearch. The configuration does not need to be modified for the time being. The modulename is used to split the log according to the name of the service module. The default configuration is fine.
multiloginpolicy&&tokenpolicy
- Open-IM supports multi-terminal login. Currently, there are three multi-terminal login policies. The PC terminal and the mobile terminal are online at the same time by default. When multiple policies are configured to be true, the first policy with true is used by default, and the token policy is the generated token policy. , The developer can customize the expiration time of the token

SCRIPT DESCRIPTION

Open-IM script provides service compilation, start, and stop scripts. There are four Open-IM script start modules, one is the http+rpc service start module, the second is the websocket service start module, then the msg_transfer module, and the last is the push module

path_info.cfg&&style_info.cfg&&functions.sh
- Contains the path information of each module, including the path where the source code is located, the name of the service startup, the shell print font style, and some functions for processing shell strings
build_all_service.sh
- Compile the module, compile all the source code of Open-IM into a binary file and put it into the bin directory
start_rpc_api_service.sh&&msg_gateway_start.sh&&msg_transfer_start.sh&&push_start.sh
- Independent script startup module, followed by api and rpc modules, message gateway module, message transfer module, and push module
start_all.sh&&stop_all.sh
- Total script, start all services and close all services

Server-side authentication api graphic explanation of the login authentication process

User Register

Request URL

http://x.x.x.x:10000/auth/user_register

Request method
```
POST
```

Parameter

parameter name	required	Type	Description
secret	Y	string	The secret key used by the app server to connect to the sdk server. The maximum length is 32 characters. It must be ensured that the secret keys of the app server and the sdk server are the same. There is a risk of secret leakage, and it is best to save it on the user server.
platform	Y	int	Platform type iOS 1, Android 2, Windows 3, OSX 4, WEB 5, applet 6, linux 7
uid	Y	string	User ID, with a maximum length of 64 characters, must be unique within an APP
name	Y	string	User nickname, the maximum length is 64 characters, can be set as an empty string
icon	N	string	User avatar, the maximum length is 1024 bytes, can be set as an empty string
gender	N	int	User gender, 0 means unknown, 1 means male, 2 female means female, others will report parameter errors
mobile	N	string	User mobile, the maximum length is 32 characters, non-Mainland China mobile phone numbers need to fill in the country code (such as the United States: +1-xxxxxxxxxx) or the area code (such as Hong Kong: +852-xxxxxxxx), which can be set as an empty string
birth	N	string	The birthday of the user, the maximum length is 16 characters, can be set as an empty string
email	N	string	User email, the maximum length is 64 characters, can be set as an empty string
ex	N	string	User business card extension field, the maximum length is 1024 characters, users can extend it by themselves, it is recommended to encapsulate it into a JSON string, or set it to an empty string

Return Parameter

{
   "errCode": 0,
   "errMsg": "",
   "data":{
      "uid": "",
      "token": "",
      "expiredTime": 0,
   }
}

Refresh Token

Request URL
```
http://x.x.x.x:10000/auth/user_token
```
Request method
```
POST
```