VIAaaS/README.md
2021-02-04 13:51:12 -03:00

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VIAaaS
---
VIAaaS - ViaVersion ~~acetylsalicylic acid~~ as a Service - Standalone ViaVersion proxy
How to use: server.example.com._p25565._v1_12_2._ofalse._uBACKUSERNAME.viaaas.example.com (similar to tor to web proxies)
Parts:
- ```server.example.com```: backend server address
- ```_p```: backend port
- ```_v```: backend version (protocol id https://wiki.vg/Protocol_version_numbers or name with underline instead of dots)
- ```_o```: true to force online mode in frontend, false to disable online mode in frontend. if not set, it will be based on backend online mode.
- ```_u```: username to use in backend connection
- ```viaaas.example.com```: hostname suffix (defined in config)
Default Minecraft: viaaas.localhost with port 25565
Default WS URL: wss://localhost:25543/ws
- VIAaaS auth page is designed for storing accounts in the player's browser local storage.
It requires a CORS Proxy for calling Mojang APIs, which may make Mojang see that
as suspicious and reset/block your account password if the IP address is suspect.
- There are some information about Mojang password resetting:
https://github.com/GeyserMC/Geyser/wiki/Common-Issues#mojang-resetting-account-credentials and
https://mobile.twitter.com/MojangSupport/status/863697596350517248
- VIAaaS may have security vulnerabilities, make sure to block the ports in firewall and take care of browser local storage.
Download: https://github.com/ViaVersion/VIAaaS/actions (needs to be logged into GitHub)
Requires Java 11
How to start VIAaaS server:
- ```java -jar VIAaaS-all.jar```
Usage for offline mode:
- Connect to mc.example.com._v1_8.viaaas.localhost
Usage for online mode:
- You can use two accounts (avoids Bad Login error), the same account for front-end and back-end connections or use ```_ofalse``` (offline mode in frontend, not encrypted).
- You should set up a CORS Proxy (something like https://www.npmjs.com/package/cors-anywhere, ```git clone https://github.com/Rob--W/cors-anywhere && cd cors-anywhere && npm install && node server.js```) on the machine you are using the VIAaaS authenticator webpage.
- Go to VIAaaS auth webpage (https://localhost:25543/), configure the CORS Proxy URL (something like http://localhost:8080/,
note the ending slash) and listen to the username A that you're using to connect to the proxy.
- Add the account B you'll use in ```_u``` parameter to browser auth page.
- Connect to ```mc.example.com._v1_8._u(account B).viaaas.localhost``` (```_u(account B)``` parameter can be removed if you are using the same account)
- Approve the login in auth webpage
- Minecraft client will give Bad Login after you approve the login in your browser if you are using the same account. You can use
https://www.curseforge.com/minecraft/mc-mods/auth-me for reauthenticate the client.
## WARNING
VIAaaS may trigger anti-cheats, due to block, item, movement and other differences between versions. USE AT OWN RISK
## FAQ
VIAaaS is stuck when connecting with online mode:
- Your system may have low entropy, see https://wiki.archlinux.org/index.php/Rng-tools