**NotEnoughAuth** is a **Paper (1.21.7+)** plugin that allows you to authenticate players using **OAuth2 providers** (_Google, GitHub, GitLab, Discord, Twitch, Telegram_) based on the [Dialog](https://minecraft.wiki/w/Dialog) functionality. How to setup: [step-by-step instruction](#configuration). ### 👀 Screenshots

* While you authenticate, you will see the 'Joining world...' screen.
* After successfully authenticating, you will be automatically redirected to the server after the 'Joining world...' screen. ### 🧶 How it works? Each player session has a hash describing the state of the client, and it is checked against the database (`data.yml`) each time a player joins.\ If sessions match - proceed to the server. If they don't, force the authentication. The session hash is composed of multiple factors: - IP address [[`Player.getClientAddress()`](https://jd.papermc.io/paper/26.1.2/io/papermc/paper/connection/PlayerConnection.html#getClientAddress())] - View distance [[`ClientOption.VIEW_DISTANCE`](https://jd.papermc.io/paper/26.1.2/com/destroystokyo/paper/ClientOption.html#VIEW_DISTANCE)] - Flag to allow server listings [[`ClientOption.ALLOW_SERVER_LISTINGS`](https://jd.papermc.io/paper/26.1.2/com/destroystokyo/paper/ClientOption.html#ALLOW_SERVER_LISTINGS)] - Locale [[`ClientOption.LOCALE`](https://jd.papermc.io/paper/26.1.2/com/destroystokyo/paper/ClientOption.html#LOCALE)] - Chat visibility [[`ClientOption.CHAT_VISIBILITY`](https://jd.papermc.io/paper/26.1.2/com/destroystokyo/paper/ClientOption.html#CHAT_VISIBILITY)] - Skins parts [[`ClientOption.SKIN_PARTS`](https://jd.papermc.io/paper/26.1.2/com/destroystokyo/paper/ClientOption.html#SKIN_PARTS)] ### 💻 Commands - `/link` — opens a dialog to link an additional OAuth2 provider to your account. - `/unlink` — opens a dialog to unlink an OAuth2 provider from your account. - `/logout` — terminates your current session hash, requires authentication on next join. - `/auth info` — see a list of available commands. - `/auth reload` — reloads the plugin. Aliases: `/nea`, `/notenoughauth`. ### 🔞 Permissions - `notenoughauth.admin` _(for **operators** by default)_ — Allows to use `/auth reload`. - `notenoughauth.default` _(**true** by default)_ — Allows to use the `/auth info` command. - `notenoughauth.link` _(**true** by default)_ — Allows to use the `/link` command. - `notenoughauth.unlink` _(**true** by default)_ — Allows to use the `/unlink` command. ### 📄 Default config > [!CAUTION] > **Don't forget** to put your **public IP** into the `webIp` field.
> Also, you should **open the TCP port** on your machine for the plugin to work. Port **4177** by default.
> **Otherwise, nothing will work.** ```yaml # After setting 'webIp' and 'webPort', take a look at the console output; # You will see a list of OAuth2 redirect URLs - copy these and paste them into your OAuth provider settings (e.g., Google, GitHub) when creating the application credentials. webIp: "127.0.0.1" webPort: 4177 # Defines whether auth redirect links will contain "http" or "https"; # For example, if you use Nginx/Apache as a reverse proxy ('80' → '4177') and Cloudflare for SSL certificate, set this to 'true'; # For local testing, you may leave this as 'false'. useHttps: false # If you use tunneling software (such as 'playit.gg' or 'ngrok'), you may use this field for overriding the base URL (e.g., 'https://4be8-112-41-125-11.ngrok-free.app'). overriddenRedirectUrlBase: "" # Time for a player to pass the auth process (in seconds). timeout: 90 # Link for creating Google application: https://console.cloud.google.com/apis/credentials google: enabled: true clientId: "YOUR_GOOGLE_CLIENT_ID" secret: "YOUR_GOOGLE_CLIENT_SECRET" # Link for creating GitHub application: https://github.com/settings/developers github: enabled: true clientId: "YOUR_GITHUB_CLIENT_ID" secret: "YOUR_GITHUB_CLIENT_SECRET" # Link for creating GitLab application: https://gitlab.com/-/user_settings/applications gitlab: enabled: true clientId: "YOUR_GITLAB_APPLICATION_ID" secret: "YOUR_GITLAB_SECRET" # Link for creating Discord application: https://discord.com/developers/applications discord: enabled: true clientId: "YOUR_DISCORD_CLIENT_ID" secret: "YOUR_DISCORD_CLIENT_SECRET" # Link for creating Twitch application: https://dev.twitch.tv/console/apps/create twitch: enabled: true clientId: "YOUR_TWITCH_CLIENT_ID" secret: "YOUR_TWITCH_CLIENT_SECRET" # Link to Telegram documentation: https://core.telegram.org/bots/telegram-login#tldr telegram: enabled: true clientId: "YOUR_TELEGRAM_BOT_CLIENT_ID" secret: "YOUR_TELEGRAM_BOT_CLIENT_SECRET" messages: "prefix": "&#C8D1DE[NotEnoughAuth]" "auth-required": "&fAuthentication required to join this server." "title": "&#FFDB60Welcome!" "description": "Let's verify it's you using OAuth2.\nYou will be prompted to open your browser." "google": "&#D5DEEAGoogle Account" "google-hover": "Click for Google authentication" "github": "&#D5DEEAGitHub Account" "github-hover": "Click for GitHub authentication" "gitlab": "&#D5DEEAGitLab Account" "gitlab-hover": "Click for GitLab authentication" "discord": "&#D5DEEADiscord Account" "discord-hover": "Click for Discord authentication" "twitch": "&#D5DEEATwitch Account" "twitch-hover": "Click for Twitch authentication" "telegram": "&#D5DEEATelegram Account" "telegram-hover": "Click for Telegram authentication" "auth-success": "Authentication successful." "auth-success-description": "You can now return to Minecraft." "auth-failed": "Authentication failed." "account-mismatch": "This Minecraft account is linked to a different account in this OAuth provider." "provider-mismatch": "This provider isn't linked to this player's account." "invalid-state": "Invalid or expired state. Please try again." "timeout": "Timeout." "link-title": "&#FFDB60Link a provider" "link-description": "You may &#A4D400&nlink&r an additional oAuth2 provider to your account to be able to use it as your additional sign-in option on this server." "link-hover": "Click to link this provider" "unlink-title": "&#FFDB60Unlink a provider" "unlink-description": "You may choose an account to &#EB4C42&nunlink&r. If needed, you will be able to link the provider again." "unlink-hover": "Click to unlink this provider" "unlink-confirm-title": "&#FFDB60Are you sure?" "unlink-confirm-description": "This provider will be removed from your account." "confirm-unlink": "&#E74C3CConfirm Unlink" "confirm-unlink-hover": "Permanently unlink this provider" "confirm": "&#A4D400Confirm" "cancel": "&#EB4C42Cancel" "back": "&#EB4C42← Back" "back-hover": "Go back to server list" "info-header": " &#ECF4FBCommands:" "info-link": "\n &#D8E5EC&n/link&r&#ECF4FB - link an additional provider to your account." "info-unlink": "\n &#D8E5EC&n/unlink&r&#ECF4FB - unlink one of the providers from your account." "info-logout": "\n &#D8E5EC&n/logout&r&#ECF4FB - sign out of the account." "info-reload": "\n &#D8E5EC&n/auth reload&r&#ECF4FB - reload the plugin configuration." "successfully-linked": " &#A4D400Linked successfully!" "successfully-unlinked": " &#A4D400Unlinked successfully!" "provider-linked": "Provider linked successfully!" "logged-out": "&fYou've successfully logged out." "reloaded": " &#ECF4FBReloaded!" "disconnected": "Disconnected." "command-not-found": " &#E03E3EOops! That command doesn't exist, or you don't have enough permissions." "not-enough-permissions": " &#E03E3ENot enough permissions." "one-provider-left": " &#E03E3EYou have only one provider left linked to your account." "all-providers-already-linked": " &#ECF4FBYou've already linked all possible providers to your account!" "rejoin": " &#E03E3ESession hashes don't match. Please rejoin." "an-error-occurred": " &#E03E3EAn error occurred during reload! Check the console logs for details." ``` ### 🚀 Installation > [!IMPORTANT] > Before getting started, make sure that the plugin's version is **compatible** with your server version. 1. Download the latest version of the plugin from the Releases tab. 1. Put the downloaded `.jar` into the `/plugins` folder of your server. 1. Restart your server or enter the `/reload` command. ### 🪄 Configuration > [!CAUTION] > **Never share your client secrets, bot tokens, or any other credentials** shown in your `config.yml`. Anyone with access to these can impersonate your application.\ > All credentials visible in the screenshots throughout the guide have been revoked and are no longer valid. **Prerequisites**: 1. Make sure to put your server's public IP into the `webIp` field in `config.yml`. 1. Open a **TCP port** _(**4177** by default)_ on your server equal to the `webPort` field from the `config.yml`. **How to configure specific providers**:

Google

1. Follow the link to open Google Cloud Console: https://console.cloud.google.com/apis/credentials 1. Create a project:

1. Click "Create credentials" → "OAuth client ID":

1. Set **"Application type"** to **"Web application"** and provide it with a name:

1. Enter `/auth reload` and copy the link for Google callback _(before that, make sure to populate `webIp` in the configuration with your server public IP or domain)_:

1. Add the link from the console to the **"Authorized redirect URIs"** section and click **"Create"**:

1. Copy both **"Client ID"** and **"Client Secret"**:

1. In the `google` section, replace `YOUR_GOOGLE_CLIENT_ID` and `YOUR_GOOGLE_CLIENT_SECRET` with the obtained credentials:

1. ✅ Enter the `/auth reload` and enjoy!

GitHub

1. Follow the link to open GitHub Developer Settings: https://github.com/settings/developers 1. Click **"New OAuth App"**:

1. Enter `/auth reload` and copy the link for GitHub callback _(before that, make sure to populate `webIp` in the configuration with your server public IP or domain)_:

1. Fill in **"Application name"**, **"Homepage URL"**, and paste the redirect URL from the plugin console into the **"Authorization callback URL"** field, then click **"Register application"**:

1. Copy the **"Client ID"**, then click **"Generate a new client secret"** and copy the generated secret:

1. In the `github` section, replace `YOUR_GITHUB_CLIENT_ID` and `YOUR_GITHUB_CLIENT_SECRET` with the obtained credentials:

1. ✅ Enter `/auth reload` and enjoy!

GitLab

1. Follow the link to open GitLab User Application Settings: https://gitlab.com/-/user_settings/applications 1. Click **"Add new application"**:

1. Enter `/auth reload` and copy the link for GitLab callback _(before that, make sure to populate `webIp` in the configuration with your server public IP or domain)_:

1. Fill in the **"Name"** field, paste the redirect URL from the plugin console into the **"Redirect URI"** field, and select the **`read_user`** scope, then click **"Save application"**:

1. Copy both the **"Application ID"** and the **"Secret"**:

1. In the `gitlab` section, replace `YOUR_GITLAB_APPLICATION_ID` and `YOUR_GITLAB_SECRET` with the obtained credentials:

1. ✅ Enter `/auth reload` and enjoy!

Discord

1. Follow the link to open the Discord Developer Portal: https://discord.com/developers/applications 1. Click **"New Application"**, enter a name for your application, and click **"Create"**:

1. In the left sidebar, select the **"OAuth2"** tab. Copy the **"Client ID"** and **"Client Secret"**:

1. Enter `/auth reload` and copy the link for Discord callback _(before that, make sure to populate `webIp` in the configuration with your server public IP or domain)_:

1. Under the **"Redirects"** section on the same OAuth2 page, click **"Add Redirect"**, paste the redirect URL from the plugin console, and click **"Save Changes"**:

1. In the `discord` section, replace `YOUR_DISCORD_CLIENT_ID` and `YOUR_DISCORD_CLIENT_SECRET` with the obtained credentials:

1. ✅ Enter `/auth reload` and enjoy!

Twitch

1. Follow the link to open the Twitch Developer Console: https://dev.twitch.tv/console/apps/create 1. Enter `/auth reload` and copy the link for Twitch callback _(before that, make sure to populate `webIp` in the configuration with your server public IP or domain)_:

1. Fill in the **"Name"** field, paste the redirect URL from the plugin console into the **"OAuth Redirect URLs"** field and click **"Add"**, then choose any **"Category"** (e.g. _"Website Integration"_), and click **"Create"**:

1. Back on the **"Applications"** list, find your newly created app and click **"Manage"**:

1. Copy the **"Client ID"**, then click **"New Secret"** and copy the generated **"Client Secret"**:

1. In the `twitch` section, replace `YOUR_TWITCH_CLIENT_ID` and `YOUR_TWITCH_CLIENT_SECRET` with the obtained credentials:

1. ✅ Enter `/auth reload` and enjoy!

Telegram

1. Open Telegram and start a chat with **@BotFather**: https://t.me/BotFather 1. Open the **@BotFather** Mini App, click **"Create a New Bot"** and proceed with the form:

1. Once the bot is created, go to the **"Login Widget"** tab:

1. Click on the **"Switch to OpenID Connect Login"**:

1. Copy the **"Client ID"** and the **"Client Secret"**:

1. Enter `/auth reload` and copy the base domain/IP for the Telegram callback _(before that, make sure to populate `webIp` in the configuration with your server public IP or domain)_:

1. Under the **"Redirect URIs"** section, click **"Add a Redirect URI"**, paste the redirect URL from the plugin console:

1. In the `telegram` section, replace `YOUR_TELEGRAM_BOT_CLIENT_ID` and `YOUR_TELEGRAM_BOT_CLIENT_SECRET` with the obtained credentials:

1. ✅ Enter `/auth reload` and enjoy!

### 🔁 SSL certificates and HTTPS > [!NOTE] > If you don't own a domain, tunneling software like [ngrok](https://ngrok.com/) or [playit.gg](https://playit.gg/) can also provide an HTTPS URL - use the `overriddenRedirectUrlBase` field in `config.yml` for that. Some OAuth2 providers require you to own a domain, and in some cases, an SSL certificate (i.e., to use 'https'). You can purchase a domain at websites such as [Cloudflare](https://www.cloudflare.com/products/registrar/), [Spaceship](https://www.spaceship.com/domains/).\ Domain price comparison tool and aggregator - https://tld-list.com/. Table of OAuth2 providers and their agility: | Provider | Can use without a private domain | Can use without SSL (HTTPS) | |---|---|---| |

Google | ❌ | ✅ | |

GitHub | ✅ | ✅ | |

GitLab | ✅ | ✅ | |

Discord | ✅ | ✅ | |

Twitch | ❌ | ❌ | |

Telegram | ✅ | ✅ |

NotEnoughAuth

1.0