VIAaaS --- VIAaaS - ViaVersion as a Service - Standalone ViaVersion proxy

Address generator: https://jo0001.github.io/ViaSetup/aspirin Public instances: https://github.com/ViaVersion/VIAaaS/wiki/List-of-Public-Instances Discord: https://viaversion.com/discord Supported versions: https://viaversion.com/ ## Demo Online mode: https://youtu.be/9MKKjuoe66k Using with GeyserConnect: https://youtu.be/_LItAIIFmsI Using with GeyserConnect on offline mode: https://youtu.be/-hZESD61nSU Offline mode tutorial: https://youtu.be/lPdELnrxmp0 ## How does it work? - [ViaVersion](https://viaversion.com), [ViaBackwards](https://viaversion.com/backwards) and [ViaRewind](https://viaversion.com/rewind) translates the connections to backend server. - VIAaaS auth page stores account credentials in the player's browser local storage. Check for XSS vulnerabilities on your domain. - It requires a CORS Proxy for calling Mojang APIs, which may make Mojang see that as suspicious and block your account password if the IP address seems suspect. - Account credentials aren't sent to VIAaaS instance, though it's intermediated by CORS Proxy. - The web page receives and validates a the session hash from VIAaaS instance. ## Setting up server instance Download: [GitHub Actions](https://github.com/ViaVersion/VIAaaS/actions) (needs to be logged into GitHub) or [JitPack](https://jitpack.io/com/github/ViaVersion/VIAaaS/master-SNAPSHOT/VIAaaS-master-SNAPSHOT-all.jar) ### How to download and start VIAaaS server: ```sh curl -Lf --output VIAaaS-all.jar "https://jitpack.io/com/github/ViaVersion/VIAaaS/master-SNAPSHOT/VIAaaS-master-SNAPSHOT-all.jar" java -jar VIAaaS-all.jar ``` - Requires Java 11 - Default Minecraft: ```via.localhost``` with port 25565 - Default HTTPS: ```https://localhost:25543/``` - Default WS URL: ```wss://localhost:25543/ws``` ### How to create a public server - You need a domain wildcarding to VIAaaS instance, like ``*.example.com -> 192.168.123.123``. You can use [DuckDNS](https://duckdns.org/) DDNS service. - Configure the hostname in the config - Open the Minecraft port (25565) - The HTTPS page needs a certificate, you can use [Apache](https://httpd.apache.org/) (with a [Let's Encrypt](https://letsencrypt.org/) certificate) as a reverse proxy. See apache_copypasta.txt file. ## CORS Proxy - For less chance of Mojang seeing the login as suspect, you (the player) should set up a CORS proxy on your machine. - Note the ending slash in cors-anywhere address - You can also try my public instance at https://crp123-cors.herokuapp.com/ ([source](https://github.com/creeper123123321/cors-anywhere/)) ### Setting up [cors-anywhere](https://www.npmjs.com/package/cors-anywhere) on local machine: ```sh git clone https://github.com/Rob--W/cors-anywhere cd cors-anywhere npm install node server.js ``` - It will be available at ```http://localhost:8080/``` ## Usage for players #### Offline mode: - Connect to ```mc.example.net.via.localhost``` #### Online mode: Web login: - You can use the same username for front-end and back-end connection. It's also possible to use an offline mode connection on front-end (use ``_of``). - Go to VIAaaS auth webpage (default is https://localhost:25543/) - Listen to the username A (you'll use it to connect to the VIAaaS instance). - Add the account B (you'll use it in backend server). - Keep the page open - Connect with your account A to ```mc.example.com._u(account B).via.localhost``` (```_u``` can be removed if username is the same) - Approve the login in the webpage Fabric client: - Install [ParacetamolAuth](https://github.com/creeper123123321/ParacetamolAuth) in your Fabric client. - Join the server: ```mc.example.net.via.localhost``` - Approve the login ### Address options #### Example address: - ```server.example.net._p25565._v1_12_2._of._uBACKUSERNAME.via.example.com``` - ```server.example.net.v_1_8.via.example.com``` - It's inspired by [Tor2web](https://www.tor2web.org/) proxies. #### Address parts: - You can use ``(option)_(value)`` too, like ``p_25565``. - ```server.example.net```: backend server address - ```_p```: backend port - ```_v```: backend version ([protocol id](https://wiki.vg/Protocol_version_numbers) or name, replace ``.`` with ``_``) . ```AUTO``` is default (1.8 fallback). - ```_o```: ```t``` to force online mode in frontend, ```f``` to force offline mode in frontend. If not set, it will be based on backend online mode. - ```_u```: username to use in backend connection - ```via.example.com```: instance address (defined in config) ## WARNING - VIAaaS may trigger anti-cheats, due to block, item, movement and other differences between versions. USE AT OWN RISK. - Take care of browser local storage. Check for XSS vulnerabilities on your domain. - Check the security of CORS proxy, it will intermediate Mojang API calls. - Mojang may lock your account when API is called from a suspect IP address. ## FAQ ### Accounts #### My Microsoft account <18 years old is not able to log in, it's giving XSTS error: - Add your account to a family (see https://wiki.vg/Microsoft_Authentication_Scheme#Authenticate_with_XSTS) #### Why a online webpage for online mode?: - It's easier to maintain in that way, because providing login via chat requires encoding and decoding more packets, which reduces maintanability. - It allows your account password and token to be kept with you. #### How to use Microsoft Account?: - If you are using a public VIAaaS instance, use this page https://viaversion.github.io/VIAaaS/ and configure the WebSocket address. ### Connection #### How to use IPv6?: - When listening to 0.0.0.0, it should listen on IPv6 too. - The hostname parser currently doesn't support direct IPv6, but you can use a DNS name with https://sslip.io/ #### I'm getting a DNS error/"Unknown host" while connecting to (...).localhost - Try configuring via.localho.st as hostname suffix #### How to use with Geyser? - Set the parameters in Geyser's `address` field: ```yml remote: # The IP address of the remote (Java Edition) server address: 2b2t.org._v1_12_2.via.localhost ``` - If you are using a public GeyserConnect instance: connect to a publicly available VIAaaS instance, like ```mc.example.com._v1_8.via.example.net``` as a Java Edition server. #### Can I use it to connect to .onion Minecraft hidden servers? - You can use .onion addresses if the instance is proxying the backend connections to TOR. Note that VIAaaS may log your requests, and that your DNS queries may be unencrypted. #### Can you support more versions / Is there some alternative? - See [DirtMultiVersion](https://github.com/DirtPowered/DirtMultiversion) and RK_01's ViaProxy server (lenni0451.net: 25563)