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@ -3,44 +3,30 @@ 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). ```AUTO``` is default and 1.8 is fallback if it fails.
- ```_o```: ```t``` to force online mode in frontend, ```f``` 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.
## How does it work?
- VIAaaS auth page stores account credentials in the player's browser local storage.
- Due to technical/security reasons, 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 seems suspect.
- Account credentials aren't sent to VIAaaS instance, though it could be intermediated by CORS Proxy.
- VIAaaS receives a session hash from instance and then authenticates the session hash with Mojang.
## Setting up server instance
Download: [GitHub Actions](https://github.com/ViaVersion/VIAaaS/actions) (needs to be logged into GitHub)
Requires Java 11
How to start VIAaaS server:
- Requires Java 11
- ```java -jar VIAaaS-all.jar```
- Default Minecraft: ```viaaas.localhost``` with port 25565
- Default WS URL: ```wss://localhost:25543/ws```
## CORS Proxy
Setting up cors-anywhere on local machine:
- ```git clone https://github.com/Rob--W/cors-anywhere && cd cors-anywhere && npm install && node server.js```
My cors-anywhere instance:
- https://crp123-cors.herokuapp.com/ for using with https://viaversion.github.io/VIAaaS/ page.
- If you trust me, you can use https://crp123-cors.herokuapp.com/ in https://viaversion.github.io/VIAaaS/ page.
## Usage for players
Usage for offline mode:
- Connect to ```mc.example.com.viaaas.localhost```
@ -57,8 +43,22 @@ Usage for online mode:
- If you use the same online mode account, your client will show Bad Login. You can use a mod like
[Auth Me](https://www.curseforge.com/minecraft/mc-mods/auth-me) or [ReAuth](https://www.curseforge.com/minecraft/mc-mods/reauth) for reauthenticating the client.
Example address: server.example.com._p25565._v1_12_2._ofalse._uBACKUSERNAME.viaaas.example.com (similar to tor to web proxies)
Address 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). ```AUTO``` is default and 1.8 is fallback if it fails.
- ```_o```: ```t``` to force online mode in frontend, ```f``` 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)
## WARNING
VIAaaS may trigger anti-cheats, due to block, item, movement and other differences between versions. USE AT OWN RISK
- VIAaaS may trigger anti-cheats, due to block, item, movement and other differences between versions. USE AT OWN RISK
- VIAaaS server instance may have security vulnerabilities, make sure to block the ports in firewall
- Take care of browser local storage.
- 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
VIAaaS is stuck when connecting with online mode: