hubs-discord-bot (Beta)

Go here to add the hosted discord bot to your server!

Discord Bot Video introduction

Note: self-hosting the bot and pointing it at production Hubs servers is currently broken. If you want to run the bot as-is, you'll need to also run your own Hubs server. We're trying to fix this.

A Discord bot that interacts with Mozilla Hubs. Mostly bridges information (chat, media links, joins/leaves), lets you see who is currently in Hubs from Discord and sets Hubs permissions and abilities based on Discord roles. Check out the bot in action on our own Hubs community Discord!

Discord

What it does
- Room/channel permissions linkage
- Room/channel bridging
Running the bot
Permissions
Hacking on it

What it does

The bot has two primary functions, both related to linking Discord text channels and Hubs rooms.

Room/channel permissions linkage

When you create a Hubs room using the !hubs create bot command, you establish a permanent association between the Hubs room and the Discord channel where you typed the command. This association will cause the Hubs room to use information from your Discord server to authenticate participants. Specifically:

People can only join the Hubs room via Discord OAuth, and only if they are a member of the channel that the Hubs room is associated with.
When they join, their permissions are based on their Discord roles. (People with Discord "manage channels" permission will be able to change the name and scene in the room, and people with Discord "kick users" permission will be able to kick and mute people in the Hubs room.)
Their display name in the Hubs room will reflect their Discord display name.

This only happens with rooms that you create using !hubs create -- simply bridging a room by putting it in the topic won't cause it to become permission-linked. This linkage will persist for the lifetime of the Hubs room -- if you don't like it, make a new Hubs room.

Room/channel bridging

Independently of being permission-linked, the bot will detect any Hubs rooms in channel topics in channels that the bot can read and join those rooms, establishing a bridge between the room and the Discord channel. Specifically:

A notification will appear in the Discord channel when someone joins or leaves the Hubs room, or if administrative stuff happens in the Hubs room.
Text chat and images will be bridged from the Discord channel into the Hubs room.
Text chat and photos will be bridged from the Hubs room into the Discord channel.
Links to media (images, videos, models) which are pinned in the Hubs room will be bridged to Discord.

Note that you need to set up a webhook for the bot to use in the Discord channel, or it won't be able to post chat from Hubs.

If you remove the Hubs room from the topic, bridging will stop.

Great. I want to run this on my Discord server.

Head over here to get a bot invite link.

Once the bot is running on your server:

Give the bot appropriate permissions on the channels you want it to run in.
Create a webhook named "Hubs" in the channels you want it to run in. It will use this webhook to bridge chat and send Hubs status updates.
Try out the bot! Type !hubs in a channel the bot is in to see all of the ways you can control the bot. Put your favorite Hubs room into a channel topic to start bridging, or use the !hubs create command to create a new room.

Permissions

The bot requires several permissions in order to work:

General Permissions

Manage Webhooks
Manage Channels - Grant locally per channel not in Developer Portal Text Permissions
Send Messages
Manage Messages
Embed Links
Read Message History
"Send messages" and "Embed links" are necessary in order to bridge between the Hubs room that is linked to a channel and the messages that are sent within the channel on Discord.
"Manage webhooks" is necessary in order for the bot to find and use a webhook for bridging chat.
"Manage channels" is necessary in order for the bot to set the channel topic and bridge chat. Note: We do not ask for this permission globally when you add the bot to your server, instead we recommend you grant this permission to the bot in specific groups or channels.
"Manage messages" and "read message history" are necessary in order for the bot to pin notification messages. Like "manage channels", you should probably grant these for specific groups and channels.

You can and should assign these on a channel-by-channel basis to the bot role after adding the bot to your guild.

Hacking on it

If you want to run the bot yourself or contribute to it right now, your best bet is to join our Discord and ask for help, because there are some parts of the server code that you will need to run and hack up. In the future this process should be easier.

To simply run the bot process:

Clone this repository.
Install Node and npm. The instructions at the NPM website should suffice.
Install Javascript dependencies by running npm ci.
Create a Discord bot on the Discord website.
Add redirect URI in the OAuth page and select the bot permissions
- Redirect URI: https://hubs.local:4000/api/v1/oauth/discord
Create an .env file with your bot's API token. Include RETICULUM_HOST={your server} and HUBS_HOSTS={your server} to point it at your local backend. RETICULUM_HOST={your server} should point to 'hubs.local:4000'. You can see the different configuration bits you can override in .env.defaults. You can also pass these values as environment variables when you run npm start/npm run local.
Inside your local reticulum instance in reticulum/config/dev.exs change the configuration for Ret.DiscordClient to point to your bot's: client_id, client_secret, and bot_token found inside your discord bot.
Run npm run local to start the server, connect to Discord and Reticulum, and operate indefinitely.
Follow the instructions above to set up and use the bot on your Discord guild.

Deploying to hubs.mozilla.com

The Hubs Discord Bot doesn't have a Jenkins job to build it yet. SO we need to build it manually.

Prerequisites

You'll need the Habitat CLI installed locally.

You'll also need access to the Habitat Builder Token. Ask someone for help with that.

Import the Habitat Builder Keys

Ask someone about getting the private key.

You'll download it and then feed it into Habitat using:

hab origin key import path/to/mozillareality.sig.key

Then for the public key run:

hab origin key download mozillareality

Building the Habitat Package

In the project directory run:

HAB_ORIGIN=mozillareality hab pkg build .

If everything builds successfully you should see a /results folder in the project directory. Take note of the mozillareality-hubs-discord-bot-0.0.1-<version>-x86_64-linux.hart file.

We now need to upload that file to the habitat.sh repository.

Run the following command in the project directory:

HAB_AUTH_TOKEN="<habitat builder token>" hab pkg upload ./results/mozillareality-hubs-discord-bot-0.0.1-<version>-x86_64-linux.hart

You should see a success message. Your uploaded package should be visible at: https://bldr.habitat.sh/#/pkgs/mozillareality/hubs-discord-bot/latest

Promoting the Habitat Package

This step will promote the package to be live on hubs.mozilla.com

Run this command to promote the package:

HAB_AUTH_TOKEN="<habitat builder token>" hab pkg promote mozillareality/hubs-discord-bot/0.0.1/<version> stable

To verify the install you can ssh into the box and tail journalctl. To do so run the following command in the hubs-ops directory.

./bin/ssh.sh discord prod

Once logged into the box run journalctl -f to tail the logs.

You'll see a bunch of logs saying:

Connected to Hubs room

Some errors that are caused by users revoking access to the hubs bot or deleting their guild. These are normal.

And finally:

Scan finished

djay/hubs-discord-bot