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# shulker
> Connects [Discord](https://discordapp.com/) and [Minecraft](https://minecraft.net) Servers by sending messages back and forth without any mods or plugins.
## In Action
## Features
- Sends message to and from Vanilla Minecraft servers
- Can send messages regarding advancements, when players join and leave, and player deaths
- Can be run on a remote machine or locally on the same machine (see `IS_LOCAL_FILE` in the options below)
- Allows admins to send commands to Minecraft through Discord
## Installation and usage
Ensure you have Node v16.6+ installed. You can check the version you have installed with `node -v` in your terminal or command prompt.
Create a Discord bot here: https://discordapp.com/developers/applications/me
Then, add the bot to your Discord server using the following link, replace the Client ID with that of your bot.
```
https://discordapp.com/oauth2/authorize?client_id=<CLIENT ID>&scope=bot
```
In your Minecraft server.properties, make sure you have the following and restart the server:
```
enable-rcon=true
rcon.password=<your password>
rcon.port=<1-65535>
```
Clone repository onto a server, copy ```config.example.json``` to ```config.json```, and edit it to enter your Discord bot details and to change any options (see below for details on the config file).
Then, in the repository folder:
```sh
yarn # or npm install
yarn build # or npm run build
yarn start # or npm run start
```
If you are running this on the same server as the MC server, enable the `IS_LOCAL_FILE` flag and update related options below.
Otherwise, perform the following command on the server hosting (in a screen/tmux session or background process, make sure to replace your `YOUR_URL` with whatever URL you're using (`localhost:8000` if running on the same server and default config) and `PATH_TO_MINECRAFT_SERVER_INSTALL` with the path to the Minecraft server installation, such as `/usr/home/minecraft_server/`):
``` sh
tail -F /PATH_TO_MINECRAFT_SERVER_INSTALL/logs/latest.log | grep --line-buffered ": <" | while read x ; do echo -ne $x | curl -X POST -d @- http://YOUR_URL/minecraft/hook ; done
```
(The above command will also be given to you if you are not using a local file when you first start up Shulker)
### Configuration
```js
{
"PORT": 8000, /* Port you want to run the webserver for the hook on */
"DEBUG": false, /* Dev debugging */
"USE_WEBHOOKS": true, /* If you want to use webhooks rather than the Discord bot sending the messages (recommended) */
"WEBHOOK_URL": "DISCORD_WEBHOOK_URL_HERE", /* Be sure to create a webhook in the channel settings and place it here! */
"IGNORE_WEBHOOKS": true, /* Ignore any messages that are sent by webhooks. If disabled, then all webhooks but those sent from the configured webhook will be handled as well */
"DISCORD_TOKEN": "<12345>", /* Discord bot token. [Click here](https://discordapp.com/developers/applications/me) to create you application and add a bot to it. */
"DISCORD_CHANNEL_ID": "<channel>", /* Discord channel ID for for the discord bot. Enable developer mode in your Discord client, then right click channel and select "Copy ID". */
"DISCORD_CHANNEL_NAME": "#<channel name>" /* The Discord channel name. It is recommended to use the ID if the bot is in multiple servers. The ID will take precedence. */
"DISCORD_MESSAGE_TEMPLATE": "`%username%`:%message%", /* Message template to display in Discord */
"MINECRAFT_SERVER_RCON_IP": "127.0.0.1", /* Minecraft server IP (make sure you have enabled rcon) */
"MINECRAFT_SERVER_RCON_PORT": <1-65535>, /* Minecraft server rcon port */
"MINECRAFT_SERVER_RCON_PASSWORD": "<your password>", /* Minecraft server rcon password */
"MINECRAFT_TELLRAW_TEMPLATE": "[{\"color\": \"white\", \"text\": \"<%username%> %message%\"}]", /* Tellraw template to display in Minecraft */
"MINECRAFT_TELLRAW_DOESNT_EXIST": false, /* Minecraft doesn't have the tellraw command (<1.7.2), use say instead. !this may be dangerous! */
"MINECRAFT_TELLRAW_DOESNT_EXIST_SAY_TEMPLATE": "<%username%> %message%", /* used when MINECRAFT_TELLRAW_DOESNT_EXIST is set to true. say template to display on minecraft, same as MINECRAFT_TELLRAW_TEMPLATE. */
"IS_LOCAL_FILE": true, /* tail the local file specified at `LOCAL_FILE_PATH` */
"LOCAL_FILE_PATH": "/usr/home/minecraft_server/logs/latest.log", /* the path to the local file if `IS_LOCAL_FILE` is set */
"FS_WATCH_FILE": false, /* use node's watchFile rather than watch. see FAQ for more details */
"SHOW_INIT_MESSAGE": true, /* Sends the message on boot if not a local file of what command to run */
"ALLOW_USER_MENTIONS": false, /* should replace @mentions with the mention in discord (format: @username#discriminator) */
"ALLOW_HERE_EVERYONE_MENTIONS": false, /* replaces @everyone and @here with "@ everyone" and "@ here" respectively */
"ALLOW_SLASH_COMMANDS": false, /* whether to allow users to run slash commands from discord */
"SLASH_COMMAND_ROLES": [], /* if the above is enabled, the names of the roles which can run slash commands */
"WEBHOOK": "/minecraft/hook", /* Web hook, where to send the log to */
"REGEX_SERVER_PREFIX": "\\[Server thread/INFO\\]:", /* What the lines of the log should start with */
"REGEX_MATCH_CHAT_MC": "^<([^>]*)> (.*)", /* What to match for chat (best to leave as default) */
"REGEX_DEATH_MESSAGE": "^[\w_]+ (died|...)", /* What to match for death messages (best leave this default too) */
"REGEX_IGNORED_CHAT": "packets too frequently", /* What to ignore, you can put any regex for swear words for example and it will be ignored */
"SERVER_NAME": "Shulker", /* The username used when displaying any server information in chat, e.g., Server - Shulker : Server message here*/
"SERVER_IMAGE": "", /* Image for the server when sending such messages (if enabled below). Only for WebHooks. */
"HEAD_IMAGE_URL": "https://mc-heads.net/avatar/%uuid%/256", /* Url to get the heads for the webhook, %uuid% is replaced with the uuid of the player */
"DEFAULT_PLAYER_HEAD": "c06f89064c8a49119c29ea1dbd1aab82", /* UUID of player with the default head to use (currently is MHF_Steve) */
"SHOW_SERVER_STATUS": false, /* Shows when the server turns on and off e.g., Server - Shulker : Server is online */
"SHOW_PLAYER_CONN_STAT": false, /* Shows player connection status in chat, e.g., Server - Shulker : TheMachine joined the game */
"SHOW_PLAYER_ADVANCEMENT": false, /* Shows when players earn advancements in chat, e.g., Server - Shulker : TheMachine has made the advacement [MEME - Machine] */
"SHOW_PLAYER_DEATH": false, /* Shows when players die in chat, e.g., Server - Shulker : TheMachine was blown up by creeper */
"SHOW_PLAYER_ME": false /* Shows when players use the /me command, e.g. **destruc7i0n** says hello */
}
```
## FAQ
* How do I make this work on a modded server?
- Try replacing `REGEX_SERVER_PREFIX` with `"\\[Server thread/INFO\\] \\[.*\\]:"`
* Why can't I send commands even if I have the option enabled?
- Make sure that you have a role on the server which is put in the array `SLASH_COMMAND_ROLES` case-sensitive.
- e.g. `"SLASH_COMMAND_ROLES": ["Admin"]`
* I am using a local file and no messages are being sent!
- Enable `DEBUG` in the config to check for any errors.
- If you are on Windows, try enabling `FS_WATCH_FILE`.
## Upgrade Instructions
From version 2 to version 3:
- The main change is that you need to split your `REGEX_MATCH_CHAT_MC` to both `REGEX_MATCH_CHAT_MC` and `REGEX_SERVER_PREFIX`.
See the [configuration](#configuration) above for details.
## Upcoming
None
## Suggestions
If you have any suggestions or feature requests, feel free to add an issue and I will take a look.
## Thanks
* [hydrabolt](https://github.com/hydrabolt) for discord.js
* [qrush](https://github.com/qrush) for the idea of this ([wither](https://github.com/qrush/wither))
* [SecretOnline](https://github.com/secretonline) for Rcon reconnecting and for making it only send messages in specified channel
* [TheZackCodec](https://github.com/TheZackCodec/) for the updates in server based messages
## License
ISC. See `LICENSE`.
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