mirror of
https://github.com/ViaVersion/VIAaaS.git
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174 lines
6.4 KiB
Markdown
174 lines
6.4 KiB
Markdown
VIAaaS
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---
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[](https://viaversion.com/discord)
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[](https://viaversion.com/)
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VIAaaS - ViaVersion as a Service - Standalone ViaVersion proxy
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<img alt="VIAaaS Logo (VIA logo with structural formula of aspirin)" height="200" src="https://viaversion.github.io/VIAaaS/src/main/resources/web/img/logo.webp">
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Address generator: https://jo0001.github.io/ViaSetup/aspirin
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Public instances: https://github.com/ViaVersion/VIAaaS/wiki/List-of-Public-Instances
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## Demo
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Online mode: https://youtu.be/9MKKjuoe66k
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Using with GeyserConnect: https://youtu.be/_LItAIIFmsI
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Using with GeyserConnect on offline mode: https://youtu.be/-hZESD61nSU
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Using with OpenAuthMod: https://youtu.be/h3EfNSxxf8k
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Offline mode tutorial: https://youtu.be/lPdELnrxmp0
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## How does it work?
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- [ViaVersion](https://viaversion.com), [ViaBackwards](https://viaversion.com/backwards)
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and [ViaRewind](https://viaversion.com/rewind) translates the connections to backend server.
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- VIAaaS auth page stores account credentials in the player's browser local storage.
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- It requires a CORS Proxy for calling Mojang APIs.
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- Account credentials aren't sent to VIAaaS instance by default.
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- The web page receives and validates the joinGame's session hash from VIAaaS instance.
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## Setting up server instance
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Download: [GitHub Actions](https://github.com/ViaVersion/VIAaaS/actions) (needs to be logged into GitHub)
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or [JitPack](https://jitpack.io/com/github/ViaVersion/VIAaaS/master-SNAPSHOT/VIAaaS-master-SNAPSHOT-all.jar)
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### How to download and start VIAaaS server:
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```sh
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curl -Lf --output VIAaaS-all.jar "https://jitpack.io/com/github/ViaVersion/VIAaaS/master-SNAPSHOT/VIAaaS-master-SNAPSHOT-all.jar"
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java -jar VIAaaS-all.jar
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```
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- Requires Java 11
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- Default Minecraft: ```via.localhost``` with port 25565
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- Default HTTPS: ```https://localhost:25543/```
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- Default WS URL: ```wss://localhost:25543/ws```
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### How to create a public server
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- You need a DNS wildcard pointing to VIAaaS instance, like ``*.example.com -> 192.168.123.123``.
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- Configure the hostname in the config
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- Open the Minecraft port (25565)
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- The HTTPS page needs a valid SSL certificate, you can use a reverse proxy like [Apache](https://httpd.apache.org/) (with
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a [Let's Encrypt](https://letsencrypt.org/) certificate).
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## CORS Proxy
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- Due to Mojang API not allowing cross-origin requests, we need to use a CORS proxy
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- Note the ending slash in cors-anywhere address
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## Usage for players
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You'll need to specify which server you want to connect through address parameters
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added as prefix in ``via.localhost`` or via web page (default https://localhost:25543/).
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#### Offline mode:
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- Connect to ```mc.example.net.via.localhost```
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#### Online mode:
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Web login:
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- Go to VIAaaS auth webpage (default is https://localhost:25543/)
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- Listen to the username A (you'll use it to connect to the VIAaaS instance).
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- Add the account B (you'll use it in backend server).
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- Keep the page open
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- Connect with your account A to ```mc.example.com._u(account B).via.localhost```
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- Approve the login in the webpage
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Web login via token caching:
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- Open the web page and save your account in your browser
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- Send your access token to the instance. After that you can close the page.
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- Connect to ```mc.example.com.via.localhost``` with the account you sent the token.
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Fabric/Forge client:
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- Install [OpenAuthMod](https://github.com/RaphiMC/OpenAuthMod) in your client.
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- Join the server: ```mc.example.net.via.localhost```
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- Approve the login
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### Address options
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#### Example address:
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- ```server.example.net._p25565._v1_12_2._of._uBACKUSERNAME.via.example.com```
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- ```server.example.net.v_1_8.via.example.com```
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- It's inspired by [Tor2web](https://www.tor2web.org/) proxies.
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#### Address parts:
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- You can use ``(option)_(value)`` too, like ``p_25565``.
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- ```server.example.net```: backend server address
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- ```_p```: backend port
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- ```_v```: backend version ([protocol id](https://wiki.vg/Protocol_version_numbers) or name, replace ``.`` with ``_``)
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. ```AUTO``` is default (with 1.8 as fallback).
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- ```_o```: ```true``` to force online mode in frontend, ```false``` to force offline mode in frontend. If not set, it
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will be based on backend online mode.
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- ```_u```: username to use in backend connection (default is front-end username)
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- ```via.example.com```: instance address (defined in config)
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## WARNING
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- VIAaaS may trigger anti-cheats, due to block, item, movement and other differences between versions. USE AT OWN RISK.
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- Take care of browser local storage. Check for XSS vulnerabilities on your domain.
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- Check the security of CORS proxy, it will be used for calling to Mojang API.
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## FAQ
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### Accounts
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#### Why to use an online webpage for online mode?:
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- It's easier to maintain in that way, because providing login via chat requires encoding and decoding more packets,
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which reduces maintainability.
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- It allows your account password and token to be kept with you.
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#### How to use Microsoft Account?:
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- If you're an administrator of the instance, edit ```config/web/js/config.js``` (default is in the jar) and
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configure your [Azure Client ID](https://wiki.vg/Microsoft_Authentication_Scheme#Microsoft_OAuth_Flow) and your domain
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whitelist.
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### Connection
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#### How to use IPv6?:
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- The hostname parser currently doesn't support direct IPv6, but you can use a DNS name with https://sslip.io/
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#### I'm getting a DNS error/"Unknown host" while connecting to via.localhost
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- Try configuring ```via.localho.st``` as hostname suffix instead
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#### How to use with Geyser?
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- Set the parameters in Geyser's `address` field:
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```yml
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remote:
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# The IP address of the remote (Java Edition) server
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address: 2b2t.org._v1_12_2.via.localhost
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```
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- If you are using a public GeyserConnect instance: connect to a publicly available VIAaaS instance,
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like ```mc.example.com._v1_8.via.example.net``` as a Java Edition server.
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#### Can I use it to connect to .onion Minecraft hidden servers?
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- You can use .onion addresses if the instance is proxying the backend connections to TOR. Note that VIAaaS may log your
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requests, and that your DNS queries may be sent unencrypted.
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#### Can you support more versions / Is there some alternative?
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- See [DirtMultiVersion](https://github.com/DirtPowered/DirtMultiversion) and [ViaProxy](https://github.com/ViaVersion/ViaProxy)
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#### Can I customize the files of HTTP server?
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- Add files to ``config/web/`` directory
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