Discord User Manager

The Discord User Manager allows users to join your Discord server by authenticating with an OAuth 2.0 provider such as Google or Microsoft. This is useful if your school or work is using G Suite from Google or Office 365 from Microsoft and you want to restrict the members of your Discord server to the members of your organization or domain. This allows you to have more control over who is able to join your Discord server without having to manage Discord invites.

Dependencies

The Discord User Manager is built with JavaScript using Express and the Pug template engine with Bootstrap for HTML, CSS, and JavaScript framework. The Discord User Manager project has a dependency on the following packages:

Package	Semantic Version	Description
bcrypt	^5.0.0	Pasword hashing used for logging into local accounts. Passwords for OAuth accounts are not stored locally.
connect-flash	^0.1.1	Used for passing messages between http requests. Flash messages use session storage to persists messages between http requests.
connect-session-sequelize	^6.0.0	SQL Session store using Sequelize as a storage backend.
cookie-parser	~1.4.4	Parse the `Cookie` header and populate `req.cookies` property with an object keyed by the cookie name.
debug	~2.6.9	A JavaScript debugging utility.
discord.js	^12.3.1	A powerful library for interacting with the Discord API.
dotenv	^8.1.0	Loads environment variables from a `.env` file into the `process.env` global variable.
express	~4.16.1	A fast, unopinionated, minimalist web framework for Node.js.
express-session	^1.16.2	Express middleware which will populate the `req.session` object.
helmet	^3.21.0	Helps to secure your Express web application.
http-errors	~1.6.3	Used to create HTTP error responses (for unmatched route handling for example).
jsonwebtoken	^8.5.1	Impelements JSON Web Token.
morgan	~1.9.1	HTTP request logger middleware for Node.js
passport	^0.4.0	Passport is Express-compatible authentication middleware for Node.js.
passport-discord	^0.1.3	Passport strategy for authentication with Discord through the OAuth 2.0 API.
passport-google-oauth20	^2.0.0	Passport strategy for authenticating with Google using the OAuth 2.0 API.
passport-local	^1.0.0	Passport strategy for authenticating with username and password.
pug	^3.0.0	High performance template engine.
sequelize	^5.18.4	A promise-based Node.js ORM for Postgres, MySQL, MariaDB, SQLite, and Microsoft SQL Server.
sqlite3	^5.0.0	Asynchronous, non-blocking SQLite3 bindings for Node.js.

Development Dependencies

In addition to the regular dependencies, the Discord User Manager also has the following development dependecies.

Package	Semantic Version	Description
@types/jest	^24.0.19	Type definitinos for Jest.
browser-sync	^2.26.7	Automatically syncronize changes to multiple devices during development.
connect-browser-sync	^2.1.0	Injects the necessary BrowserSync <script> tags into the HTML pages.
eslint	^6.3.0	ESLint is a tool for identifying and reporting on patterns found in ECMAScript/JavaScript code.
eslint-config-prettier	^6.11.0	Turns off all rules that are unnecessary or might conflict with Prettier.
eslint-plugin-jest	^22.19.0	ESLint plugin for Jest.
eslint-plugin-jquery	^1.5.1	Adds support for JQuery in ESLint
eslint-plugin-prettier	^3.1.4	Runs Prettier as an ESLint rule and reports differences as individual ESLint issues.
jest	^24.9.0	A JavaScript testing framework.
nodemon	^1.19.2	A tool that automatically restarts the Node.JS application when file changes are detected.
open	^7.2.0	Open stuff like URLs, files, executables.
prettier	^2.1.0	Opinionated Code Formatter.
sequelize-cli	^5.5.1	The Sequelize Command Line Interface (CLI).
stoppable	^1.1.0	Node's server.close() - the way you probably expected it to work by default.
yargs	^14.0.0	Build interactive command line tools by parsing arguments and generating an elegant user interface.

Installation

Discord User Manager requires Node.js (version 10 or higher) in order to be installed.

Either download the source from https://github.com/jpvanoosten/discord-user-manager or install it from the command line:

git clone https://github.com/jpvanoosten/discord-user-manager.git

Make sure the current working directory is set to the directory where the repo was cloned to:

cd discord-user-manager

Install package dependencies:

npm install

or if using Yarn:

yarn

Configuration

The Discord User Manager uses environment variables to configure a lot of functionality. The .env.example file contains all of the environment variables used by the Discord User Manager.

The following table describes the configurable environment varaibles.

Variable	Default Value	Description
NODE_ENV	development	When running in production, make sure the value of this variable is production. When running in development, some additional features (such as debug logging and browser sync) will be available.
PORT	3000	What port the Express server should listen on.
DEBUG	discord-user-manager:*	Conrols what debug messages are logged.
USE_BROWSER_SYNC	false	Whether BrowserSync should be enabled or not.
ADMIN_USERNAME	admin	The username for the default administrator account.
ADMIN_PASSWORD		The password for the default administrator account.
SESSION_SECRET		The secret used to sign the session ID cookie.
GOOGLE_CLIENT_ID		OAuth 2.0 Client ID from the Google Developer Console.
GOOGLE_CLIENT_SECRET		OAuth 2.0 Cient Secret from the Google Developer Console.
GOOGLE_REDIRECT_URI	http://localhost:3000/google/callback	The path in your application that users are redirected to after they have authenticated with Google. This is configured in the Google Developer Console Credentials.
DISCORD_CLIENT_ID		OAuth 2.0 Client ID from the Discord Developer Portal.
DISCORD_CLIENT_SECRET		OAuth 2.0 Client Secret from the Discord Developer Portal.
DISCORD_REDIRECT_URI	http://localhost:3000/discord/callback	The path in your appliation that users are redirected to after they have authenticated with Discord.
DISCORD_BOT_TOKEN		The unique token used to authenticate the Bot with the DiscordJS client.
DISCORD_SERVER_ID		The unique identifier for the Discord server.
TEST_USER_DISCORD_ID		The unique identifer for a Discord user. (Only used for testing).
TEST_USER_ACCESS_TOKEN		An access token for a Discord user. (Only used for testing).

Auto Configuration

The Discord User Manager server can either be manually configured by copying the .env.example file to .env and modifying the environment varaibles, or you can run the configure command to auto-configure many of the required environment variables. To auto-generate the .env file based on the .env.example file, run the following command:

npm run configure

or

yarn configure

The configure command will configure the .env file with automatically generated passwords and secrets based on the contents of the .env.example file.

If the .env file already exsits in the root directory of the project, then the configure command will not overwrite the file. If you want to force the .env file to be overwritten, then you can pass the aditional --force arguments:

npm run configure --force

or

yarn configure --force

NOTE: The .env file contains sensitive secret information that could allow administrator access to your user's personal information and your Discord Bot. Never commit the .env file into version control and never use the .env.example file to store secret information since the .env.example file is part of version control.

Google Authentication

In order to allow your users to authenticate with Google, you must first create a Google Cloud Project in the Google Developer Console.

Create a New Project

Navigate to https://console.developers.google.com/ and sign-in with a Google account.
Click Select a project from main menu.

Click the NEW PROJECT button (top-right) to create a new project, or select an existing project from the list.

Give your project a meaningful name (like discord-user-manager).
Click the CREATE button to create the new project.

OAuth Consent Screen

From the hamburger menu on the top-left corner of the page, select APIs & Services > OAuth consent screen

If you are presented with the analytics screen, select the 🖊 EDIT APP button next to the application name.

In the OAuth consent screen that appears, specify the Application name.
Optionally, you can also add an Application logo which will also appear on the OAuth consent screen.

Scroll to the bottom of the page and click the Save button.

Create OAuth client ID

In order to use OAuth 2.0 to allow users to login to your application, you need to configure a Web application for the Google Cloud Project.

From the hamburger menu on the top-left corner of the page, select API & Services > Credentials.

Click the + CREATE CREDENTIALS button at the top of the screen.

Select OAuth client ID from the pop-up list.

Set the Application type to Web application.

Give the Web application a Name. This is the name that will appear on the OAuth 2.0 login screen.
Under the Authorised redirect URIs section, click the + ADD URI button to add a redirect URI to be used with requests from a web server.

In order to allow for testing the application on a locally running server, you must add http://localhost:3000/google/callback redirect URI.
Also add the redirect URI that is specified in the GOOGLE_REDIRECT_URI configuration environment variable specified in your .env file in your production environment.
Click the CREATE button on the bottom of the page to create the OAuth client credentials.

Copy the Client ID and paste it in the value for the GOOGLE_CLIENT_ID variable in the .env file (never commit this value to version control).
Copy the Client Secret and paste it in the value for the GOOGLE_CLIENT_SECRET variable in the .env file (never commit this value to version control).

Discord Authentication

Create a Discord Application

In order to allow users to log into Discord and join the Discord server, you must create a Discord application and add a Discord bot in the Discord Developer Portal.

Navitate to https://discord.com/developers and log in with your Discord account.
Click the New Application button in the top-right corner of the screen.

Give the application a name like Discord User Manager. This name will be used to identify your application in the OAuth consent screen.
Click the Create button to create a new Discord application.

Copy the Client ID and paste it into the value for the DISCORD_CLIENT_ID variable in the .env file (never commit this value to version control).
Copy the Client Secret and paste it into the value for the DISCORD_CLIENT_SECRET variable in the .env file (never commit this value to version control).
Select the OAuth2 settings.

Click the Add Redirect button.
In order to test your application on a locally running server, you must add http://localhost:3000/discord/callback as a redirect URI.
Also add the value of the DISCORD_REDIRECT_URI environment variable in the .env file in your production environment.

Click the Save Changes button on the bottom of the screen.
Next, select the Bot settings.

Add a Discord Bot

A Discord Bot is a privileged user that can perform certain actions within your Discord server on your behalf.

Click the Add Bot button to add a bot to your Discord application.

Give the Discord bot a username such as Discord User Manager.
Optionally, you can give the Discord bot an image icon. This is the icon that will be used to represent this bot in your Discord server.
Since the bot will only be used by your own Discord server, uncheck Public Bot setting.
Under Privileged Gateway Intents make sure Server Members Intent is enabled.
Click the Save Changes button on the bottom of the screen.
Click the Copy button under TOKEN section and paste the bot token to the value of the DISCORD_BOT_TOKEN environment variable in the .env file.

The Server Members Intent is required to allow your bot to receive the guildMemberAdd, and guildMemberRemove events. These are considered privilaged events which requires this option to be enabled. See https://discord.com/developers/docs/topics/gateway#gateway-intents for more information.

Add Application to your Discord Server

Before the Discord User Manager application can start working to manage the users in your Discord Server, you need to add the Discord application and bot that you created in the previous step to your Discord server.

Select the OAuth2 settings again.

Scroll down to Scopes and check the following scopes:
- identity
- email
- guilds
- guilds.join
- bot
Under Bot Permissions select the following permissions:
- Manage Roles
- Kick Members
- Ban Members
- Create Instant Invite
- Manage Nicknames
- Send Messages
- Add Reactions
Copy the URL in the Scopes section and paste it into the address bar of your browser.

Select the server you want to add the bot to and click the Continue button.

On the next screen that appears, make sure all of the requested permissions are checked.
Click the Authorize button to add the Discord Bot to your server.
If you go to your Discord Server, you should see the Discord User Manager bot as a member of your server.

The Discord User Manager bot has now been added to your server and is able to perform user management tasks for you.

The bot may appear offline but this is normal if the Discord User Manager application is not yet running.

Configure the Discord Bot

Now that the Discord bot has been added to your Discord server, a few more settings need to be configured on the Discord User Manager server.

Open the Discord application and go to User Settings
Select the Appearance under App Settings

Scroll to the bottom of the page and enable the Developer Mode option.

Enabling the Developer Mode option will allow you to copy the server ID, user ID, channel ID, and message ID from the Discord application (even when using the desktop application).

Right-click on the server icon on the left of the screen and select the Copy ID option in the pop-up menu that appears.
Paste the server ID into the value of the DISCORD_SERVER_ID in the .env file.

Start the Discord User Manager

To start the Discord User Manager application, open a terminal and navigate to the root folder where you cloned the discord-user-manager git repository and run the following command:

npm run start

Or if using Yarn:

yarn start

If the service starts correctly, you should see Listening on port 3000 printed to the console.

Open your browser and navigate to http://localhost:3000.

If everything worked correctly, you should see the home page for the Discord User Manager application (as shown in the image above).

Verify Discord Bot

If you return to your Discord server, you should see that the Discord User Manager bot is online.

To see if the bot responds to commands, type !ping in one of the text channels of your server (make sure the bot can read the messages of the channel you use to type bot commands).

If the bot is running correctly, it should reply with Pong. printed to the same text channel.

If you want to see a list of possible commands the bot can respond to, use the !help bot command. The bot should respond with a direct message that contains list of bot commands that it knows about.

Add Custom Bot Commands

You can create custom bot commands by adding a JavaScript file to the discord/commands folder. The file should export an object with the following properties:

Property	Type	Required	Description
name	string	✔	The name that is used to identify the command.
description	string		A brief description of the command. Used to diplay documentation using the `!help` bot command.
aliases	string[]		An array of aliases for the command.
usage	string		A list of expected arguments for the command.
args	boolean		Set to `true` if this command expects arguments. If `true` and no arguments are provided, an error is generated displaying the `usage` string.
cooldown	number		The time in seconds that the command can be exectued again.
guildOnly	boolean		`true` if this command can only be executed in the context of a guild channel. If `true`, an error is generated if the command is executed in a direct message to the bot.
permissions	Discord.PermissionResolvable[]		An array of permission flags that the user executing the command must have. See https://discord.js.org/#/docs/main/stable/class/Permissions?scrollTo=s-FLAGS
execute	function (message: Discord.Message, args: string[])	✔	The function that is executed when the command is received by the bot. The `message` parameter is the Discord message that was received. The `args` parameter are any additional arguments that were provided in the message. If the command doesn't take any additional arguments, the `args` parameter can be omitted.

An example command file looks like this:

// Error messages can be logged to a debug stream.
const debug = require("debug")("discord-user-manager:discord:commands:kick");
// The DiscordJS API
const discord = require("discord.js");

module.exports = {
  // The command name (excluding the command prefix).
  name: "kick",

  // Command aliases.
  aliases: ["k"],

  // A description of the command.
  description: "Kick a user from the Discord guild server.",

  // Does this command expect any additional arguments?
  args: true,

  // Specify the expected arguments.
  usage: "<guildUser>",

  // The user executing the command must have the following permissions.
  permissions: [discord.Permissions.FLAGS.KICK_MEMBERS],

  // Can this command only be run in the context of a guild channel?
  guildOnly: true,

  // Elapsed time (in seconds) between subsequent execution of the command.
  cooldown: 1,

  // The function that executes the command.
  execute: async (message) => {
    if (!message.mentions.users.size) {
      return message.reply("No user mentioned in kick command.");
    }

    const user = message.mentions.users.first();
    if (user === message.author) {
      return message.reply("You can't kick yourself.");
    }

    const member = message.guild.member(user);
    if (member) {
      try {
        await member.kick("Kicked by bot kick command.");
        message.reply(`Successfully kicked ${user.tag}`);
      } catch (err) {
        debug(err);
        message.reply(`Unable to kick ${user.tag}`);
      }
    } else {
      message.reply(`User ${user.tag} is not a guild member.`);
    }
  },
};

Reaction Based Roles

// TODO: This section still needs to be filled in.

Testing

Jest is used to perform unit testing on the server. Some of the test cases require a valid Discord user in order to run. A valid OAuth 2.0 access token is required for the test user. Use the utils/getDiscordOAuthToken.js script to populate the TEST_USER_ACCESS_TOKEN and TEST_USER_DISCORD_ID values in the .env file.

Note: If the TEST_USER_DISCORD_ID and TEST_USER_ACCESS_TOKEN keys are not in the .env file, nothing will be replaced. Please make sure these keys exist in the .env file before running this script.

Using the terminal:

node utils/getDiscordOAuthToke.js

Using npm:

npm run oauth:discord

Using Yarn:

yarn oauth:discord

Run Jest

To run the unit tests for the Discord bot, open a terminal in the root folder of the project and use the following command:

npm run test

or if you are using yarn:

yarn test

If all tests pass, you should see the following output in the terminal:

 PASS  discord/DiscordAdapter.test.js
  √ resolve welcome channel (2ms)
  √ resolve default role (1ms)
  √ can add user to role (599ms)
  √ add user to invalid role (30ms)
  √ add invalid user to role (1ms)
  √ welcome URL
  √ add existing user (168ms)
  √ add invalid user
  √ remove invalid user (1ms)
  √ send log to channel (1ms)

----------------------------------------|----------|----------|----------|----------|-------------------|
File                                    |  % Stmts | % Branch |  % Funcs |  % Lines | Uncovered Line #s |
----------------------------------------|----------|----------|----------|----------|-------------------|
All files                               |    50.88 |    23.04 |    54.55 |    51.02 |                   |
 discord-user-manager                   |      100 |      100 |      100 |      100 |                   |
  settings.js                           |      100 |      100 |      100 |      100 |                   |
 discord-user-manager/config            |      100 |      100 |      100 |      100 |                   |
  config.js                             |      100 |      100 |      100 |      100 |                   |
 discord-user-manager/discord           |    59.92 |     31.4 |    67.57 |    59.69 |                   |
  DiscordAdapter.js                     |    59.77 |     31.4 |    67.57 |    59.53 |... 45,646,648,651 |
  config.js                             |      100 |      100 |      100 |      100 |                   |
 discord-user-manager/discord/commands  |    13.95 |        0 |        0 |    14.46 |                   |
  args-info.js                          |    16.67 |        0 |        0 |    16.67 |        6,7,8,9,12 |
  help.js                               |     9.76 |        0 |        0 |    10.53 |... 69,70,72,73,76 |
  kick.js                               |    18.75 |        0 |        0 |    18.75 |... 26,27,29,30,33 |
  ping.js                               |       50 |      100 |        0 |       50 |                 7 |
  prune.js                              |    14.29 |        0 |        0 |    14.29 |... 33,35,37,39,40 |
 discord-user-manager/discord/reactions |       20 |        0 |        0 |       20 |                   |
  add_role.js                           |       20 |        0 |        0 |       20 |... 36,37,38,40,43 |
 discord-user-manager/models            |    95.83 |    66.67 |      100 |    95.83 |                   |
  index.js                              |       95 |    66.67 |      100 |       95 |                13 |
  user.js                               |      100 |      100 |      100 |      100 |                   |
----------------------------------------|----------|----------|----------|----------|-------------------|
Test Suites: 1 passed, 1 total
Tests:       10 passed, 10 total
Snapshots:   0 total
Time:        4.33s
Ran all test suites.

Some common reasons why some of the tests fail:

The Discord guild server does not have a welcome channel. See discord/config.js.
The Discord guild server does not have a default role. See discord/config.js.
The Discord guild server does not have a logs channel. See discord/config.js.
The test user's OAuth access token is not valid. See Testing.
The test user's ID does not match that of the access token. See Get Discord User ID.

Name		Name	Last commit message	Last commit date
Latest commit History 113 Commits
.vscode		.vscode
bin		bin
config		config
discord		discord
docs/images		docs/images
migrations		migrations
models		models
public		public
routes		routes
utils		utils
views		views
.env.example		.env.example
.eslintrc.json		.eslintrc.json
.gitignore		.gitignore
.htaccess		.htaccess
.prettierrc.json		.prettierrc.json
.sequelizerc		.sequelizerc
LICENSE		LICENSE
README.md		README.md
app.js		app.js
jest.config.js		jest.config.js
jsconfig.json		jsconfig.json
package.json		package.json
settings.js		settings.js
welcome-message.eml		welcome-message.eml

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Discord User Manager

Dependencies

Development Dependencies

Installation

Configuration

Auto Configuration

Google Authentication

Create a New Project

OAuth Consent Screen

Create OAuth client ID

Discord Authentication

Create a Discord Application

Add a Discord Bot

Add Application to your Discord Server

Configure the Discord Bot

Start the Discord User Manager

Verify Discord Bot

Add Custom Bot Commands

Reaction Based Roles

Testing

Run Jest

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WebOfTrustInfo/discord-user-manager

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Discord User Manager

Dependencies

Development Dependencies

Installation

Configuration

Auto Configuration

Google Authentication

Create a New Project

OAuth Consent Screen

Create OAuth client ID

Discord Authentication

Create a Discord Application

Add a Discord Bot

Add Application to your Discord Server

Configure the Discord Bot

Start the Discord User Manager

Verify Discord Bot

Add Custom Bot Commands

Reaction Based Roles

Testing

Run Jest

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