Discord Bridge

This is a Sponge plugin to integrate Minecraft server with a Discord channel.

Features

• Player's chat messages in Minecraft are sent to specified Discord channels, and chat messages in specific Discord channels are also sent to online players in Minecraft.
• Admins and mods can log in to their own Discord account, so that chat messages show under their names in Discord.
• Emoji is converted between Minecraft and Discord format. Details are showed in EMOJI.md.
• Clickable URL.
• Multiple channels with custom configuration for each channel. E.g.:
  • 1 public channel to send & receive messages between Discord and Minecraft
  • 1 monitoring channel to record only server start/stop and player join/leave events
  • 1 staff-only channel that send message one-way from Discord to Minecraft with a special announcement template
• Set game activity of the bot
• Ignore Discord messages from all bots and/or blacklist certain prefixes
• Support One-Time Password
• New in 2.3.0
  • Mentions in Discord show properly in Minecraft with configurable templates
  • Mentions from Minecraft are supported with permission control (check Additional Permissions)
  • Attachments in Discord shows proper links in Minecraft
  • Support Minecraft templates based on Discord roles

Getting Started for server owners and players

[GETTING STARTED.md](GETTING STARTED.md)

Migrating from 1.x.x or 2.0.0

MIGRATE.md

Build your own .jar

1. Clone this repository
2. Run gradlew
3. The jar file will be in build/libs/DiscordBridge-{version}-all.jar.

Commands

• /discord login: login to Discord and bind the Discord account to the Minecraft account for automatic login in the future. The email and password will not be stored; instead, the access token of the user will be stored in the config folder on the server.
• /discord otp: One-time password for Discord login (thanks Prototik).
• /discord logout: logout of Discord and unbind the Discord account from the Minecraft account.
• /discord broadcast: as this plugin cannot capture server's /say at the moment, this command is to send a message to all online players and Discord. This command requires having the default account set up.
• /discord status: show current connection status.
• /discord reload: reload configurations.
• /discord reconnect: reconnect Discord connection.

A short summary is below:

Command	Shorthand	Permission
/discord login	/d l	discordbridge.login
/discord otp	/d otp	discordbridge.login
/discord logout	/d lo	discordbridge.login
/discord broadcast <message>	/d b <message>	discordbridge.broadcast
/discord status	/d s	discordbridge.status
/discord reload	/d reload	discordbridge.reload
/discord reconnect	/d reconnect	discordbridge.reconnect

Some ideas for future commands

Command	Note
/discord config	Show current configuration
/discord status	Show current Discord account

Configurations

Configuration is stored in config.json file.

• Global config
  • botToken: App Bot User's token
  • botDiscordGame: sets the current game activity of the bot in Discord (thanks, Vankka)
  • tokenStore: JSON (default) or NONE (user authentication will be disabled) or InMemory (mainly for testing). This is used for player authentication.
  • minecraftBroadcastTemplate: template for messages in Minecraft from /discord broadcast command
  • prefixBlacklist: a list of prefix string (e.g. ["!"]) that will be ignored by the plugin (thanks, Vankka)
  • ignoreBots: ignore all messages from any Discord Bots (thanks, Vankka)
  • channels: a list of channel configurations
• Channel config
  • discordId: the ID of the Discord channel (usually a 18-digit number)
  • discord: templates in Discord
    • joinedTemplate: (optional) template for a message in Discord when a player joins the server
    • leftTemplate: (optional) template for a message in Discord when a player leaves the server
    • anonymousChatTemplate: (optional) template for messages from Minecraft to Discord for unauthenticated user
    • authenticatedChatTemplate: (optional) template for messages from Minecraft to Discord for authenticated user
    • broadcastTemplate: (optional) template for messages in Discord from /discord broadcast command
    • deathTemplate: (optional) template for a message in Discord when a player dies (thanks, Mohron)
  • minecraft: templates in Minecraft
    • chatTemplate: (optional) template for messages from Discord to Minecraft. For supporting placeholders in the template, check the section Chat placeholder
    • attachment: (thanks, Mohron)
      • template: template for Discord attachments linked in Minecraft
      • hoverTemplate: template for the message shown when you hover over an attachment link
      • allowLink: adds a clickable link in game for attachments sent via discord
    • emoji: (thanks, Mohron)
      • template: template for custom emoji viewed in Minecraft - accepts %n
      • hoverTemplate: template for the message shown when you hover over an emoji
      • allowLink: adds a clickable link in game to view the emoji image
    • mention: (thanks, Mohron)
      • userTemplate: template for @user mentions - accepts %s/%u
      • roleTemplate: template for @role mentions - accepts %s
      • everyoneTemplate: template for @here & @everyone mentions - accepts %s
      • channelTemplate: template for @here & @everyone mentions - accepts %s
    • roles: minecraft configurations that are for a specific Discord role

You can find some example configurations in examples folders.

Chat Placeholders

• %s - the message sent via discord
• %a - the nickname of the message author or username if nickname is unavailable
• %u - the username of the author. This is used if you want to disallow Discord nickname.
• %r - the name of the highest Discord role held by the message author. Color of the role will also be translated into Minecraft color automatically.
• %g - the current game of the message author
• %n - the name of of custom emoji

Additional Permissions

NOTE: The below permissions are applicable only to unathenticated users. Authenticated users chat under their own Discord accounts, so you can restrict using Text permission of Discord roles.

Permission	Use
discordbridge.mention.name discordbridge.mention.name.<name>	Allows @username/@nickname mentions to be sent from Minecraft
discordbridge.mention.role discordbridge.mention.role.<role>	Allows @role mentions - the role must have "Allow anyone to @mention" set
discordbridge.mention.channel discordbridge.mention.channel.<channel>	Allows #channel mention
discordbridge.mention.here	Allows the @here mention1
discordbridge.mention.everyone	Allows the @everyone mention1

¹ The bot must have permission to "Mention Everyone" in order to use @here & @everyone.

Frequently Asked Questions

How to get channel ID

1. Open User Settings in Discord, then open Appearance section and tick Developer Mode
2. Right click any channel and click Copy ID

CHANGELOG

CHANGELOG.md

TODO

• 2.4.0

• New config to allow executing Minecraft command from Discord

• Future

• MySQL token store
• Group-based prefix
• Handle custom Sponge channels (e.g. MCClan and staff chat of Nucleus)
• A command to check Bot connection status
• New config to route Minecraft server log to Discord