cleanup, clean PacketRegistry

.github/FUNDING.yml

@@ -1,5 +1,5 @@
 custom:
-- 'https://viaversion.com/donate'
+  - 'https://viaversion.com/donate'
-- 'https://viaversion.com/backwards'
+  - 'https://viaversion.com/backwards'
-- 'https://viaversion.com/rewind'
+  - 'https://viaversion.com/rewind'
-- 'https://creeper123123321.github.io/#donate'
+  - 'https://creeper123123321.github.io/#donate'

.github/workflows/gradle.yml

@@ -1,18 +1,18 @@
 # This workflow will build a Java project with Gradle
 # For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
 name: Java CI with Gradle
-on: [push, pull_request]
+on: [ push, pull_request ]
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
-    - uses: actions/setup-java@v1
+      - uses: actions/setup-java@v1
-      with:
+        with:
-        java-version: 16
+          java-version: 16
-    - name: Build with Gradle
+      - name: Build with Gradle
-      run: ./gradlew build
+        run: ./gradlew build
-    - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v2
-      with:
+        with:
-        name: artifact
+          name: artifact
-        path: build/libs/
+          path: build/libs/

README.md

@@ -10,53 +10,71 @@ Discord: https://viaversion.com/discord
 Supported versions: https://viaversion.com/
 
 ## 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.
+- [ViaVersion](https://viaversion.com), [ViaBackwards](https://viaversion.com/backwards)
-- Due to technical/security reasons, it requires a CORS Proxy for calling Mojang APIs, which may make Mojang see that
+  and [ViaRewind](https://viaversion.com/rewind) translates the connections to backend server.
- as suspicious and reset/block your account password if the IP address seems suspect.
+- VIAaaS auth page stores account credentials in the player's browser local storage. Check for XSS vulnerabilities on
+  your domain.
+- 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's intermediated by CORS Proxy.
 - VIAaaS receives a the session hash from instance and then the browser validates it to Mojang.
 
 ## 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)
+
+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 start VIAaaS server:
+
 ```sh
 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.
+
+- 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 proxy. See apache_copypasta.txt file.
+- 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 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 use my public instance at https://crp123-cors.herokuapp.com/ ([source](https://github.com/creeper123123321/cors-anywhere/)) too,
+- You can use my public instance
-but proxies have a bit more chance of being seen as suspect.
+  at https://crp123-cors.herokuapp.com/ ([source](https://github.com/creeper123123321/cors-anywhere/)) too, but proxies
+  have a bit more chance of being seen as suspect.
 
 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
+
 Usage for offline mode:
+
 - Connect to ```mc.example.net.via.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 ```_of```
+
- (offline mode in frontend. May be useful if you have a client which is incompatible with online mode).
+- You can use two accounts (avoids Bad Login error), the same account for front-end and back-end connections, or
+  use ```_of```
+  (offline mode in frontend. May be useful if you have a client which is incompatible with online mode).
 - Go to VIAaaS auth webpage (default is https://localhost:25543/)
 - Configure CORS proxy, see above in "CORS Proxy" section
 - Listen to the username A you'll use to connect to the proxy.
@@ -65,62 +83,83 @@ Usage for online mode:
 - Connect to ```mc.example.com._u(B).via.localhost``` (```_u``` can be removed if you are using the same username)
 - Approve the login in the webpage
 - If you use the same online mode account, your client may 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).
+  [Auth Me](https://www.curseforge.com/minecraft/mc-mods/auth-me)
+  or [ReAuth](https://www.curseforge.com/minecraft/mc-mods/reauth).
 
 ### 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 with underline instead of dots). ```AUTO``` is default and ``-1`` is fallback if it fails.
+- ```_v```: backend version ([protocol id](https://wiki.vg/Protocol_version_numbers) or name with underline instead of
-- ```_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.
+  dots). ```AUTO``` is default and ``-1`` 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
 - ```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 change through versions.
+
+- It's easier to maintain in that way, because providing login via chat requires encoding and decoding more packets
+  which change through versions.
 - 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.
+
+- 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.
-- To use IPv6 in backend address, you need to use a instance with IPv6 connectivity. The hostname parser currently doesn't support
+- To use IPv6 in backend address, you need to use a instance with IPv6 connectivity. The hostname parser currently
- direct IPv6, but you can use a DNS name with https://sslip.io/
+  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-127-0-0-1.nip.io as hostname suffix
 
 How to use with Geyser?
+
 - Currently you need to set the parameters (at least the hostname) 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.via.example.net``` as a Java Edition server.
+- If you are using a public GeyserConnect instance: connect to a publicly available VIAaaS instance,
+  like ```mc.example.com.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.
+- You can use .onion addresses if the instance is proxying the backend connections to TOR. Note that VIAaaS may log your
+  requests.
 
 Can you support more versions?
+
 - See [DirtMultiVersion](https://github.com/DirtPowered/DirtMultiversion)

build.gradle.kts

@@ -102,9 +102,11 @@ tasks {
 
 tasks.named<ProcessResources>("processResources") {
     filesMatching("viaaas_info.json") {
-        filter<org.apache.tools.ant.filters.ReplaceTokens>("tokens" to mapOf(
+        filter<org.apache.tools.ant.filters.ReplaceTokens>(
+            "tokens" to mapOf(
                 "version" to project.property("version")
-        ))
+            )
+        )
     }
 }
 

index.html

@@ -1 +1 @@
-<meta http-equiv="refresh" content="0; url=https://viaversion.github.io/VIAaaS/src/main/resources/web/">
+<meta content="0; url=https://viaversion.github.io/VIAaaS/src/main/resources/web/" http-equiv="refresh">

src/main/kotlin/com/viaversion/aas/Util.kt

@@ -7,14 +7,14 @@ import com.google.common.primitives.Ints
 import com.google.gson.JsonObject
 import com.viaversion.aas.config.VIAaaSConfig
 import com.viaversion.aas.util.StacklessException
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
+import com.viaversion.viaversion.api.type.Type
 import io.ktor.client.request.*
 import io.netty.buffer.ByteBuf
 import io.netty.channel.Channel
 import io.netty.channel.ChannelFutureListener
 import io.netty.handler.codec.DecoderException
 import org.slf4j.LoggerFactory
-import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
-import com.viaversion.viaversion.api.type.Type
 import java.math.BigInteger
 import java.net.InetAddress
 import java.net.InetSocketAddress

src/main/kotlin/com/viaversion/aas/VIAaaS.kt

@@ -1,6 +1,5 @@
 package com.viaversion.aas
 
-import com.google.gson.JsonObject
 import com.google.gson.JsonParser
 import com.viaversion.aas.command.VIAaaSConsole
 import com.viaversion.aas.command.ViaAspirinCommand
@@ -11,6 +10,10 @@ import com.viaversion.aas.platform.*
 import com.viaversion.aas.protocol.registerAspirinProtocols
 import com.viaversion.aas.web.ViaWebApp
 import com.viaversion.aas.web.WebDashboardServer
+import com.viaversion.viaversion.ViaManagerImpl
+import com.viaversion.viaversion.api.Via
+import com.viaversion.viaversion.api.data.MappingDataLoader
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import de.gerrygames.viarewind.api.ViaRewindConfigImpl
 import io.ktor.application.*
 import io.ktor.client.*
@@ -37,15 +40,9 @@ import io.netty.channel.socket.nio.NioSocketChannel
 import io.netty.util.concurrent.Future
 import org.apache.logging.log4j.Level
 import org.apache.logging.log4j.io.IoBuilder
-import com.viaversion.viaversion.ViaManagerImpl
-import com.viaversion.viaversion.api.Via
-import com.viaversion.viaversion.api.data.MappingDataLoader
-import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import java.io.File
 import java.net.InetAddress
 import java.security.KeyPairGenerator
-import java.security.SecureRandom
-import java.util.*
 import java.util.concurrent.CompletableFuture
 
 val viaaasVer = JsonParser.parseString(

src/main/kotlin/com/viaversion/aas/VIAaaSAddress.kt

@@ -41,20 +41,20 @@ class VIAaaSAddress {
 
     fun parseOption(part: String): Boolean {
         val option = when {
-                part.length < 2 -> null
+            part.length < 2 -> null
-                part.startsWith("_") -> part[1]
+            part.startsWith("_") -> part[1]
-                part[1] == '_' -> part[0]
+            part[1] == '_' -> part[0]
-                else -> null
+            else -> null
-            }?.toString()
+        }?.toString()
         if (option != null) {
             val arg = part.substring(2)
             when (option.toLowerCase(Locale.ROOT)) {
                 "p" -> port = arg.toInt()
                 "o" -> online = when {
-                        arg.startsWith("t", ignoreCase = true) -> true
+                    arg.startsWith("t", ignoreCase = true) -> true
-                        arg.startsWith("f", ignoreCase = true) -> false
+                    arg.startsWith("f", ignoreCase = true) -> false
-                        else -> null
+                    else -> null
-                    }
+                }
                 "v" -> parseProtocol(arg)
                 "u" -> {
                     if (arg.length > 16) throw StacklessException("Invalid username")

src/main/kotlin/com/viaversion/aas/codec/CompressionCodec.kt

@@ -1,10 +1,10 @@
 package com.viaversion.aas.codec
 
+import com.viaversion.viaversion.api.type.Type
 import io.netty.buffer.ByteBuf
 import io.netty.channel.ChannelHandlerContext
 import io.netty.handler.codec.DecoderException
 import io.netty.handler.codec.MessageToMessageCodec
-import com.viaversion.viaversion.api.type.Type
 import java.util.zip.Deflater
 import java.util.zip.Inflater
 

src/main/kotlin/com/viaversion/aas/codec/FrameCodec.kt

@@ -1,11 +1,11 @@
 package com.viaversion.aas.codec
 
 import com.viaversion.aas.badLength
+import com.viaversion.viaversion.api.type.Type
+import com.viaversion.viaversion.exception.CancelDecoderException
 import io.netty.buffer.ByteBuf
 import io.netty.channel.ChannelHandlerContext
 import io.netty.handler.codec.ByteToMessageCodec
-import com.viaversion.viaversion.api.type.Type
-import com.viaversion.viaversion.exception.CancelDecoderException
 
 class FrameCodec : ByteToMessageCodec<ByteBuf>() {
     override fun decode(ctx: ChannelHandlerContext, input: ByteBuf, out: MutableList<Any>) {

src/main/kotlin/com/viaversion/aas/codec/MinecraftCodec.kt

@@ -4,11 +4,12 @@ import com.viaversion.aas.handler.MinecraftHandler
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.packet.PacketRegistry
 import com.viaversion.aas.util.StacklessException
+import com.viaversion.viaversion.api.protocol.packet.Direction
+import com.viaversion.viaversion.exception.CancelEncoderException
 import io.netty.buffer.ByteBuf
 import io.netty.buffer.ByteBufAllocator
 import io.netty.channel.ChannelHandlerContext
 import io.netty.handler.codec.MessageToMessageCodec
-import com.viaversion.viaversion.exception.CancelEncoderException
 
 class MinecraftCodec : MessageToMessageCodec<ByteBuf, Packet>() {
     override fun encode(ctx: ChannelHandlerContext, msg: Packet, out: MutableList<Any>) {
@@ -16,7 +17,12 @@ class MinecraftCodec : MessageToMessageCodec<ByteBuf, Packet>() {
         val buf = ByteBufAllocator.DEFAULT.buffer()
         try {
             val handler = ctx.pipeline().get(MinecraftHandler::class.java)
-            PacketRegistry.encode(msg, buf, handler.data.frontVer!!, serverBound = !handler.frontEnd)
+            PacketRegistry.encode(
+                msg,
+                buf,
+                handler.data.frontVer!!,
+                if (handler.frontEnd) Direction.CLIENTBOUND else Direction.SERVERBOUND
+            )
             out.add(buf.retain())
         } finally {
             buf.release()
@@ -30,7 +36,8 @@ class MinecraftCodec : MessageToMessageCodec<ByteBuf, Packet>() {
             PacketRegistry.decode(
                 msg,
                 handler.data.frontVer ?: 0,
-                handler.data.state.state, handler.frontEnd
+                handler.data.state.state,
+                if (handler.frontEnd) Direction.SERVERBOUND else Direction.CLIENTBOUND
             )
         )
         if (msg.isReadable) throw StacklessException("Remaining bytes!!!")

src/main/kotlin/com/viaversion/aas/command/VIAaaSConsole.kt

@@ -2,12 +2,12 @@ package com.viaversion.aas.command
 
 import com.viaversion.aas.command.sub.StopSubCommand
 import com.viaversion.aas.serverFinishing
+import com.viaversion.viaversion.api.command.ViaCommandSender
 import net.minecrell.terminalconsole.SimpleTerminalConsole
 import org.jline.reader.Candidate
 import org.jline.reader.LineReader
 import org.jline.reader.LineReaderBuilder
 import org.slf4j.LoggerFactory
-import com.viaversion.viaversion.api.command.ViaCommandSender
 import java.util.*
 
 object VIAaaSConsole : SimpleTerminalConsole(), ViaCommandSender {

src/main/kotlin/com/viaversion/aas/command/sub/AspirinReloadSubCommand.kt

@@ -4,7 +4,7 @@ import com.viaversion.aas.config.VIAaaSConfig
 import com.viaversion.viaversion.api.command.ViaCommandSender
 import com.viaversion.viaversion.api.command.ViaSubCommand
 
-object AspirinReloadSubCommand: ViaSubCommand() {
+object AspirinReloadSubCommand : ViaSubCommand() {
     override fun name() = "aasreload"
     override fun description() = "Reloads VIAaaS config"
 

src/main/kotlin/com/viaversion/aas/handler/BackEndInit.kt

@@ -3,11 +3,11 @@ package com.viaversion.aas.handler
 import com.viaversion.aas.codec.FrameCodec
 import com.viaversion.aas.codec.MinecraftCodec
 import com.viaversion.aas.handler.autoprotocol.ProtocolDetectorHandler
+import com.viaversion.viaversion.connection.UserConnectionImpl
+import com.viaversion.viaversion.protocol.ProtocolPipelineImpl
 import io.netty.channel.Channel
 import io.netty.channel.ChannelInitializer
 import io.netty.handler.timeout.ReadTimeoutHandler
-import com.viaversion.viaversion.connection.UserConnectionImpl
-import com.viaversion.viaversion.protocol.ProtocolPipelineImpl
 import java.util.concurrent.TimeUnit
 
 class BackEndInit(val connectionData: ConnectionData) : ChannelInitializer<Channel>() {

src/main/kotlin/com/viaversion/aas/handler/MinecraftHandler.kt

@@ -3,11 +3,11 @@ package com.viaversion.aas.handler
 import com.viaversion.aas.mcLogger
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.setAutoRead
+import com.viaversion.viaversion.exception.CancelCodecException
 import io.netty.channel.Channel
 import io.netty.channel.ChannelHandlerContext
 import io.netty.channel.SimpleChannelInboundHandler
 import io.netty.handler.proxy.Socks5ProxyHandler
-import com.viaversion.viaversion.exception.CancelCodecException
 import java.net.SocketAddress
 import java.nio.channels.ClosedChannelException
 

src/main/kotlin/com/viaversion/aas/handler/Util.kt

@@ -3,9 +3,9 @@ package com.viaversion.aas.handler
 import com.viaversion.aas.config.VIAaaSConfig
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.send
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import io.netty.channel.ChannelPipeline
 import io.netty.handler.proxy.Socks5ProxyHandler
-import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import java.net.InetSocketAddress
 
 fun forward(handler: MinecraftHandler, packet: Packet, flush: Boolean = false) {

src/main/kotlin/com/viaversion/aas/handler/ViaCodec.kt

@@ -1,11 +1,11 @@
 package com.viaversion.aas.handler
 
-import io.netty.buffer.ByteBuf
-import io.netty.channel.ChannelHandlerContext
-import io.netty.handler.codec.MessageToMessageCodec
 import com.viaversion.viaversion.api.connection.UserConnection
 import com.viaversion.viaversion.exception.CancelDecoderException
 import com.viaversion.viaversion.exception.CancelEncoderException
+import io.netty.buffer.ByteBuf
+import io.netty.channel.ChannelHandlerContext
+import io.netty.handler.codec.MessageToMessageCodec
 
 class ViaCodec(val info: UserConnection) : MessageToMessageCodec<ByteBuf, ByteBuf>() {
     override fun decode(ctx: ChannelHandlerContext, bytebuf: ByteBuf, out: MutableList<Any>) {

src/main/kotlin/com/viaversion/aas/handler/autoprotocol/ProtocolDetectionState.kt

@@ -1,17 +1,16 @@
 package com.viaversion.aas.handler.autoprotocol
 
+import com.google.gson.JsonParser
 import com.viaversion.aas.handler.MinecraftHandler
 import com.viaversion.aas.handler.state.MinecraftConnectionState
 import com.viaversion.aas.mcLogger
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.packet.status.StatusResponse
 import com.viaversion.aas.parseProtocol
-import com.google.gson.JsonParser
 import com.viaversion.aas.util.StacklessException
-import io.netty.channel.ChannelHandlerContext
-import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import com.viaversion.viaversion.api.protocol.packet.State
-import java.nio.channels.ClosedChannelException
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
+import io.netty.channel.ChannelHandlerContext
 import java.util.concurrent.CompletableFuture
 
 class ProtocolDetectionState(val future: CompletableFuture<ProtocolVersion>) : MinecraftConnectionState {
@@ -22,7 +21,7 @@ class ProtocolDetectionState(val future: CompletableFuture<ProtocolVersion>) : M
         handler.data.frontChannel.close()
         if (packet !is StatusResponse) throw StacklessException("unexpected packet")
         val ver = JsonParser.parseString(packet.json).asJsonObject
-                .getAsJsonObject("version").get("protocol").asInt.parseProtocol()
+            .getAsJsonObject("version").get("protocol").asInt.parseProtocol()
         future.complete(ver)
         mcLogger.info("A.D.: ${handler.endRemoteAddress} $ver")
     }

src/main/kotlin/com/viaversion/aas/handler/autoprotocol/ProtocolDetector.kt

@@ -1,5 +1,7 @@
 package com.viaversion.aas.handler.autoprotocol
 
+import com.google.common.cache.CacheBuilder
+import com.google.common.cache.CacheLoader
 import com.viaversion.aas.channelSocketFactory
 import com.viaversion.aas.childLoop
 import com.viaversion.aas.codec.FrameCodec
@@ -11,8 +13,8 @@ import com.viaversion.aas.mcLogger
 import com.viaversion.aas.packet.handshake.Handshake
 import com.viaversion.aas.packet.status.StatusRequest
 import com.viaversion.aas.send
-import com.google.common.cache.CacheBuilder
+import com.viaversion.viaversion.api.protocol.packet.State
-import com.google.common.cache.CacheLoader
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import io.netty.bootstrap.Bootstrap
 import io.netty.channel.Channel
 import io.netty.channel.ChannelFuture
@@ -21,8 +23,6 @@ import io.netty.channel.ChannelOption
 import io.netty.handler.timeout.ReadTimeoutHandler
 import io.netty.resolver.NoopAddressResolverGroup
 import io.netty.util.concurrent.Future
-import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
-import com.viaversion.viaversion.api.protocol.packet.State
 import java.net.InetSocketAddress
 import java.util.concurrent.CompletableFuture
 import java.util.concurrent.ExecutionException

src/main/kotlin/com/viaversion/aas/handler/autoprotocol/ProtocolDetectorHandler.kt

@@ -3,12 +3,11 @@ package com.viaversion.aas.handler.autoprotocol
 import com.viaversion.aas.handler.ConnectionData
 import com.viaversion.aas.handler.MinecraftHandler
 import com.viaversion.aas.mcLogger
+import io.netty.channel.ChannelDuplexHandler
 import io.netty.channel.ChannelHandlerContext
 import io.netty.channel.ChannelPromise
 import java.net.InetSocketAddress
 import java.util.concurrent.TimeUnit
-import io.netty.channel.ChannelDuplexHandler
-import java.lang.Exception
 import java.util.function.Consumer
 
 // https://github.com/ViaVersion/ViaFabric/blob/mc-1.16/src/main/java/com/github/creeper123123321/viafabric/handler/clientside/ProtocolDetectionHandler.java
@@ -28,15 +27,15 @@ class ProtocolDetectorHandler(val connectionData: ConnectionData) : ChannelDuple
                 ctx.pipeline().remove(this)
             }, 10, TimeUnit.SECONDS)
             ProtocolDetector.detectVersion(address).whenComplete { protocol, _ ->
-                    if (protocol != null && protocol.version != -1) {
+                if (protocol != null && protocol.version != -1) {
-                        connectionData.viaBackServerVer = protocol.version
+                    connectionData.viaBackServerVer = protocol.version
-                    } else {
+                } else {
-                        connectionData.viaBackServerVer = -1 // fallback
+                    connectionData.viaBackServerVer = -1 // fallback
-                    }
-
-                    ctx.pipeline().remove(this)
-                    timeoutRun.cancel(false)
                 }
+
+                ctx.pipeline().remove(this)
+                timeoutRun.cancel(false)
+            }
             // Let's cache it before we need it
         }
     }

src/main/kotlin/com/viaversion/aas/handler/state/HandshakeState.kt

@@ -1,18 +1,18 @@
 package com.viaversion.aas.handler.state
 
+import com.google.common.cache.CacheBuilder
+import com.google.common.cache.CacheLoader
+import com.google.common.net.HostAndPort
+import com.google.common.util.concurrent.RateLimiter
 import com.viaversion.aas.VIAaaSAddress
 import com.viaversion.aas.config.VIAaaSConfig
 import com.viaversion.aas.handler.MinecraftHandler
 import com.viaversion.aas.mcLogger
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.packet.handshake.Handshake
-import com.google.common.cache.CacheBuilder
-import com.google.common.cache.CacheLoader
-import com.google.common.net.HostAndPort
-import com.google.common.util.concurrent.RateLimiter
 import com.viaversion.aas.util.StacklessException
-import io.netty.channel.ChannelHandlerContext
 import com.viaversion.viaversion.api.protocol.packet.State
+import io.netty.channel.ChannelHandlerContext
 import java.net.InetAddress
 import java.net.InetSocketAddress
 import java.util.concurrent.TimeUnit

src/main/kotlin/com/viaversion/aas/handler/state/LoginState.kt

@@ -10,13 +10,13 @@ import com.viaversion.aas.handler.forward
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.packet.login.*
 import com.viaversion.aas.util.StacklessException
+import com.viaversion.viaversion.api.protocol.packet.State
 import io.netty.channel.Channel
 import io.netty.channel.ChannelHandlerContext
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.future.await
 import kotlinx.coroutines.launch
-import com.viaversion.viaversion.api.protocol.packet.State
 import java.util.*
 import java.util.concurrent.CompletableFuture
 import javax.crypto.Cipher

src/main/kotlin/com/viaversion/aas/handler/state/MinecraftConnectionState.kt

@@ -1,10 +1,10 @@
 package com.viaversion.aas.handler.state
 
-import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.handler.MinecraftHandler
 import com.viaversion.aas.mcLogger
-import io.netty.channel.ChannelHandlerContext
+import com.viaversion.aas.packet.Packet
 import com.viaversion.viaversion.api.protocol.packet.State
+import io.netty.channel.ChannelHandlerContext
 
 interface MinecraftConnectionState {
     val state: State

src/main/kotlin/com/viaversion/aas/handler/state/PlayState.kt

@@ -1,5 +1,6 @@
 package com.viaversion.aas.handler.state
 
+import com.google.gson.JsonPrimitive
 import com.viaversion.aas.config.VIAaaSConfig
 import com.viaversion.aas.handler.MinecraftHandler
 import com.viaversion.aas.handler.forward
@@ -10,14 +11,13 @@ import com.viaversion.aas.packet.play.Kick
 import com.viaversion.aas.packet.play.PluginMessage
 import com.viaversion.aas.parseProtocol
 import com.viaversion.aas.readRemainingBytes
-import com.viaversion.aas.writeFlushClose
-import com.google.gson.JsonPrimitive
 import com.viaversion.aas.util.StacklessException
+import com.viaversion.aas.writeFlushClose
+import com.viaversion.viaversion.api.protocol.packet.State
+import com.viaversion.viaversion.api.type.Type
 import io.netty.buffer.ByteBufAllocator
 import io.netty.buffer.Unpooled
 import io.netty.channel.ChannelHandlerContext
-import com.viaversion.viaversion.api.type.Type
-import com.viaversion.viaversion.api.protocol.packet.State
 
 object PlayState : MinecraftConnectionState {
     override val state: State
@@ -40,7 +40,8 @@ object PlayState : MinecraftConnectionState {
                 } else {
                     Type.STRING.read(Unpooled.wrappedBuffer(pluginMessage.data))
                 } + " (VIAaaS C: ${handler.data.frontVer!!.parseProtocol()} S: ${
-                        handler.data.viaBackServerVer!!.parseProtocol()})"
+                    handler.data.viaBackServerVer!!.parseProtocol()
+                })"
 
                 if (is1_7(handler)) {
                     pluginMessage.data = brand.toByteArray(Charsets.UTF_8)

src/main/kotlin/com/viaversion/aas/handler/state/StatusState.kt

@@ -1,5 +1,8 @@
 package com.viaversion.aas.handler.state
 
+import com.google.gson.JsonArray
+import com.google.gson.JsonObject
+import com.google.gson.JsonParser
 import com.viaversion.aas.config.VIAaaSConfig
 import com.viaversion.aas.handler.MinecraftHandler
 import com.viaversion.aas.handler.forward
@@ -7,14 +10,11 @@ import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.packet.UnknownPacket
 import com.viaversion.aas.packet.status.StatusResponse
 import com.viaversion.aas.parseProtocol
-import com.viaversion.aas.writeFlushClose
-import com.google.gson.JsonArray
-import com.google.gson.JsonObject
-import com.google.gson.JsonParser
 import com.viaversion.aas.util.StacklessException
-import io.netty.channel.ChannelHandlerContext
+import com.viaversion.aas.writeFlushClose
 import com.viaversion.viaversion.api.Via
 import com.viaversion.viaversion.api.protocol.packet.State
+import io.netty.channel.ChannelHandlerContext
 import java.util.*
 
 object StatusState : MinecraftConnectionState {

src/main/kotlin/com/viaversion/aas/handler/state/Util.kt

@@ -8,6 +8,7 @@ import com.viaversion.aas.handler.MinecraftHandler
 import com.viaversion.aas.handler.forward
 import com.viaversion.aas.packet.handshake.Handshake
 import com.viaversion.aas.util.StacklessException
+import com.viaversion.viaversion.api.protocol.packet.State
 import io.netty.bootstrap.Bootstrap
 import io.netty.channel.ChannelFuture
 import io.netty.channel.ChannelFutureListener
@@ -17,7 +18,6 @@ import io.netty.resolver.NoopAddressResolverGroup
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
-import com.viaversion.viaversion.api.protocol.packet.State
 import java.net.Inet4Address
 import java.net.InetAddress
 import java.net.InetSocketAddress

src/main/kotlin/com/viaversion/aas/packet/PacketRegistry.kt

@@ -1,5 +1,6 @@
 package com.viaversion.aas.packet
 
+import com.google.common.collect.Range
 import com.viaversion.aas.packet.handshake.Handshake
 import com.viaversion.aas.packet.login.*
 import com.viaversion.aas.packet.play.Kick
@@ -8,91 +9,100 @@ import com.viaversion.aas.packet.status.StatusPing
 import com.viaversion.aas.packet.status.StatusPong
 import com.viaversion.aas.packet.status.StatusRequest
 import com.viaversion.aas.packet.status.StatusResponse
-import com.google.common.collect.Range
 import com.viaversion.aas.util.StacklessException
-import io.netty.buffer.ByteBuf
+import com.viaversion.viaversion.api.protocol.packet.Direction
+import com.viaversion.viaversion.api.protocol.packet.State
 import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import com.viaversion.viaversion.api.type.Type
-import com.viaversion.viaversion.api.protocol.packet.State
+import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13
+import com.viaversion.viaversion.protocols.protocol1_14to1_13_2.ClientboundPackets1_14
+import com.viaversion.viaversion.protocols.protocol1_15to1_14_4.ClientboundPackets1_15
+import com.viaversion.viaversion.protocols.protocol1_16_2to1_16_1.ClientboundPackets1_16_2
+import com.viaversion.viaversion.protocols.protocol1_16to1_15_2.ClientboundPackets1_16
+import com.viaversion.viaversion.protocols.protocol1_17to1_16_4.ClientboundPackets1_17
+import com.viaversion.viaversion.protocols.protocol1_8.ClientboundPackets1_8
+import com.viaversion.viaversion.protocols.protocol1_9to1_8.ClientboundPackets1_9
+import io.netty.buffer.ByteBuf
 import java.util.function.Supplier
 
 object PacketRegistry {
     val entries = mutableListOf<RegistryEntry>()
 
     init {
-        // Obviosly stolen from https://github.com/VelocityPowered/Velocity/blob/dev/1.1.0/proxy/src/main/java/com/velocitypowered/proxy/protocol/StateRegistry.java
+        // Obviously stolen from https://github.com/VelocityPowered/Velocity/blob/dev/1.1.0/proxy/src/main/java/com/velocitypowered/proxy/protocol/StateRegistry.java
-        register(Range.all(), State.HANDSHAKE, 0, true, ::Handshake)
+        register(State.HANDSHAKE, Direction.SERVERBOUND, ::Handshake, Range.all(), 0)
-        register(Range.all(), State.LOGIN, 0, true, ::LoginStart)
+
-        register(Range.all(), State.LOGIN, 1, true, ::CryptoResponse)
+        register(State.LOGIN, Direction.SERVERBOUND, ::LoginStart, Range.all(), 0)
-        register(Range.atLeast(ProtocolVersion.v1_13.version), State.LOGIN, 2, true, ::PluginResponse)
+        register(State.LOGIN, Direction.SERVERBOUND, ::CryptoResponse, Range.all(), 1)
-        register(Range.all(), State.LOGIN, 0, false, ::LoginDisconnect)
+        register(State.LOGIN, Direction.SERVERBOUND, ::PluginResponse, Range.atLeast(ProtocolVersion.v1_13.version), 2)
-        register(Range.all(), State.LOGIN, 1, false, ::CryptoRequest)
+
-        register(Range.all(), State.LOGIN, 2, false, ::LoginSuccess)
+        register(State.LOGIN, Direction.CLIENTBOUND, ::LoginDisconnect, Range.all(), 0)
-        register(Range.all(), State.LOGIN, 3, false, ::SetCompression)
+        register(State.LOGIN, Direction.CLIENTBOUND, ::CryptoRequest, Range.all(), 1)
-        register(Range.atLeast(ProtocolVersion.v1_13.version), State.LOGIN, 4, false, ::PluginRequest)
+        register(State.LOGIN, Direction.CLIENTBOUND, ::LoginSuccess, Range.all(), 2)
-        register(Range.all(), State.STATUS, 0, true, ::StatusRequest)
+        register(State.LOGIN, Direction.CLIENTBOUND, ::SetCompression, Range.all(), 3)
-        register(Range.all(), State.STATUS, 1, true, ::StatusPing)
+        register(State.LOGIN, Direction.CLIENTBOUND, ::PluginRequest, Range.atLeast(ProtocolVersion.v1_13.version), 4)
-        register(Range.all(), State.STATUS, 0, false, ::StatusResponse)
+
-        register(Range.all(), State.STATUS, 1, false, ::StatusPong)
+        register(State.STATUS, Direction.SERVERBOUND, ::StatusRequest, Range.all(), 0)
+        register(State.STATUS, Direction.SERVERBOUND, ::StatusPing, Range.all(), 1)
+        register(State.STATUS, Direction.CLIENTBOUND, ::StatusResponse, Range.all(), 0)
+        register(State.STATUS, Direction.CLIENTBOUND, ::StatusPong, Range.all(), 1)
+
+        // Play
         register(
-            ::Kick, State.PLAY, false, mapOf(
+            State.PLAY, Direction.CLIENTBOUND, ::Kick, mapOf(
-                Range.closed(ProtocolVersion.v1_7_1.version, ProtocolVersion.v1_8.version) to 0x40,
+                ProtocolVersion.v1_7_1..ProtocolVersion.v1_8 to ClientboundPackets1_8.DISCONNECT.id,
-                Range.closed(ProtocolVersion.v1_9.version, ProtocolVersion.v1_12_2.version) to 0x1A,
+                ProtocolVersion.v1_9..ProtocolVersion.v1_12_2 to ClientboundPackets1_9.DISCONNECT.id,
-                Range.closed(ProtocolVersion.v1_13.version, ProtocolVersion.v1_13_2.version) to 0x1B,
+                ProtocolVersion.v1_13..ProtocolVersion.v1_13_2 to ClientboundPackets1_13.DISCONNECT.id,
-                Range.closed(ProtocolVersion.v1_14.version, ProtocolVersion.v1_14_4.version) to 0x1A,
+                ProtocolVersion.v1_14..ProtocolVersion.v1_14_4 to ClientboundPackets1_14.DISCONNECT.id,
-                Range.closed(ProtocolVersion.v1_15.version, ProtocolVersion.v1_15_2.version) to 0x1B,
+                ProtocolVersion.v1_15..ProtocolVersion.v1_15_2 to ClientboundPackets1_15.DISCONNECT.id,
-                Range.closed(ProtocolVersion.v1_16.version, ProtocolVersion.v1_16_1.version) to 0x1A,
+                ProtocolVersion.v1_16..ProtocolVersion.v1_16_1 to ClientboundPackets1_16.DISCONNECT.id,
-                Range.closed(ProtocolVersion.v1_16_2.version, ProtocolVersion.v1_16_4.version) to 0x19
+                ProtocolVersion.v1_16_2..ProtocolVersion.v1_16_4 to ClientboundPackets1_16_2.DISCONNECT.id,
+                Range.singleton(ProtocolVersion.v1_17.fullSnapshotVersion) to ClientboundPackets1_17.DISCONNECT.id
             )
         )
+
         register(
-            ::PluginMessage, State.PLAY, true, mapOf(
+            State.PLAY, Direction.CLIENTBOUND, ::PluginMessage, mapOf(
-                Range.closed(ProtocolVersion.v1_7_1.version, ProtocolVersion.v1_8.version) to 0x17,
+                ProtocolVersion.v1_7_1..ProtocolVersion.v1_8 to ClientboundPackets1_8.PLUGIN_MESSAGE.id,
-                Range.closed(ProtocolVersion.v1_9.version, ProtocolVersion.v1_11_1.version) to 0x09,
+                ProtocolVersion.v1_9..ProtocolVersion.v1_12_2 to ClientboundPackets1_9.PLUGIN_MESSAGE.id,
-                Range.singleton(ProtocolVersion.v1_12.version) to 0x0A,
+                ProtocolVersion.v1_13..ProtocolVersion.v1_13_2 to ClientboundPackets1_13.PLUGIN_MESSAGE.id,
-                Range.closed(ProtocolVersion.v1_12_1.version, ProtocolVersion.v1_12_2.version) to 0x09,
+                ProtocolVersion.v1_14..ProtocolVersion.v1_14_4 to ClientboundPackets1_14.PLUGIN_MESSAGE.id,
-                Range.closed(ProtocolVersion.v1_13.version, ProtocolVersion.v1_13_2.version) to 0x0A,
+                ProtocolVersion.v1_15..ProtocolVersion.v1_15_2 to ClientboundPackets1_15.PLUGIN_MESSAGE.id,
-                Range.closed(ProtocolVersion.v1_14.version, ProtocolVersion.v1_16_4.version) to 0x0B
+                ProtocolVersion.v1_16..ProtocolVersion.v1_16_1 to ClientboundPackets1_16.PLUGIN_MESSAGE.id,
-            )
+                ProtocolVersion.v1_16_2..ProtocolVersion.v1_16_4 to ClientboundPackets1_16_2.PLUGIN_MESSAGE.id,
-        )
+                Range.singleton(ProtocolVersion.v1_17.fullSnapshotVersion) to ClientboundPackets1_17.PLUGIN_MESSAGE.id
-        register(
-            ::PluginMessage, State.PLAY, false,
-            mapOf(
-                Range.closed(ProtocolVersion.v1_7_1.version, ProtocolVersion.v1_8.version) to 0x3F,
-                Range.closed(ProtocolVersion.v1_9.version, ProtocolVersion.v1_12_2.version) to 0x18,
-                Range.closed(ProtocolVersion.v1_13.version, ProtocolVersion.v1_13_2.version) to 0x19,
-                Range.closed(ProtocolVersion.v1_14.version, ProtocolVersion.v1_14_4.version) to 0x18,
-                Range.closed(ProtocolVersion.v1_15.version, ProtocolVersion.v1_15_2.version) to 0x19,
-                Range.closed(ProtocolVersion.v1_16.version, ProtocolVersion.v1_16_1.version) to 0x18,
-                Range.closed(ProtocolVersion.v1_16_2.version, ProtocolVersion.v1_16_4.version) to 0x17
             )
         )
     }
 
+    operator fun ProtocolVersion.rangeTo(o: ProtocolVersion): Range<Int> {
+        return Range.closed(this.originalVersion, o.originalVersion)
+    }
+
     inline fun <reified P : Packet> register(
-        protocol: Range<Int>,
         state: State,
-        id: Int,
+        direction: Direction,
-        serverBound: Boolean,
-        constructor: Supplier<P>
-    ) {
-        entries.add(RegistryEntry(protocol, state, id, serverBound, constructor, P::class.java))
-    }
-
-    inline fun <reified P : Packet> register(
         constructor: Supplier<P>,
-        state: State,
+        idByProtocol: Map<Range<Int>, Int>,
-        serverBound: Boolean,
+        klass: Class<P> = P::class.java,
-        idByProtocol: Map<Range<Int>, Int>
     ) {
-        idByProtocol.forEach { (protocol, id) -> register(protocol, state, id, serverBound, constructor) }
+        entries.add(RegistryEntry(idByProtocol, state, direction, constructor, klass))
+    }
+
+    inline fun <reified P : Packet> register(
+        state: State,
+        direction: Direction,
+        constructor: Supplier<P>,
+        protocol: Range<Int>,
+        id: Int
+    ) {
+        register(constructor = constructor, direction = direction, state = state, idByProtocol = mapOf(protocol to id))
     }
 
     data class RegistryEntry(
-        val versionRange: Range<Int>,
+        val idByVersion: Map<Range<Int>, Int>,
         val state: State,
-        val id: Int,
+        val direction: Direction,
-        val serverBound: Boolean,
         val constructor: Supplier<out Packet>,
         val packetClass: Class<out Packet>
     )
@@ -101,34 +111,35 @@ object PacketRegistry {
         protocolVersion: Int,
         state: State,
         id: Int,
-        serverBound: Boolean
+        direction: Direction
     ): Supplier<out Packet>? {
         return entries.firstOrNull {
-            it.serverBound == serverBound && it.state == state
+            it.direction == direction
-                    && it.versionRange.contains(protocolVersion) && it.id == id
+                    && it.state == state
+                    && it.idByVersion.entries.firstOrNull { it.key.contains(protocolVersion) }?.value == id
         }?.constructor
     }
 
-    fun getPacketId(packetClass: Class<out Packet>, protocolVersion: Int, serverBound: Boolean): Int? {
+    fun getPacketId(packetClass: Class<out Packet>, protocolVersion: Int, direction: Direction): Int? {
         return entries.firstOrNull {
-            it.versionRange.contains(protocolVersion) && it.packetClass == packetClass && it.serverBound == serverBound
+            it.packetClass == packetClass && it.direction == direction
-        }?.id
+        }?.idByVersion?.entries?.firstOrNull { it.key.contains(protocolVersion) }?.value
     }
 
-    fun decode(byteBuf: ByteBuf, protocolVersion: Int, state: State, serverBound: Boolean): Packet {
+    fun decode(byteBuf: ByteBuf, protocolVersion: Int, state: State, direction: Direction): Packet {
         val packetId = Type.VAR_INT.readPrimitive(byteBuf)
         val packet =
-            getPacketConstructor(protocolVersion, state, packetId, serverBound)?.get() ?: UnknownPacket(packetId)
+            getPacketConstructor(protocolVersion, state, packetId, direction)?.get() ?: UnknownPacket(packetId)
         packet.decode(byteBuf, protocolVersion)
         if (byteBuf.isReadable) throw StacklessException("Remaining bytes!")
         return packet
     }
 
-    fun encode(packet: Packet, byteBuf: ByteBuf, protocolVersion: Int, serverBound: Boolean) {
+    fun encode(packet: Packet, byteBuf: ByteBuf, protocolVersion: Int, direction: Direction) {
         val id = if (packet is UnknownPacket) {
             packet.id
         } else {
-            getPacketId(packet.javaClass, protocolVersion, serverBound)!!
+            getPacketId(packet.javaClass, protocolVersion, direction)!!
         }
         Type.VAR_INT.writePrimitive(byteBuf, id)
         packet.encode(byteBuf, protocolVersion)

src/main/kotlin/com/viaversion/aas/packet/handshake/Handshake.kt

@@ -1,9 +1,9 @@
 package com.viaversion.aas.packet.handshake
 
 import com.viaversion.aas.packet.Packet
-import io.netty.buffer.ByteBuf
-import com.viaversion.viaversion.api.type.Type
 import com.viaversion.viaversion.api.protocol.packet.State
+import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 import kotlin.properties.Delegates
 
 class Handshake : Packet {

src/main/kotlin/com/viaversion/aas/packet/login/CryptoRequest.kt

@@ -2,9 +2,9 @@ package com.viaversion.aas.packet.login
 
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.readByteArray
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 import java.security.KeyFactory
 import java.security.PublicKey
 import java.security.spec.X509EncodedKeySpec

src/main/kotlin/com/viaversion/aas/packet/login/CryptoResponse.kt

@@ -2,9 +2,9 @@ package com.viaversion.aas.packet.login
 
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.readByteArray
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 
 class CryptoResponse : Packet {
     lateinit var encryptedKey: ByteArray

src/main/kotlin/com/viaversion/aas/packet/login/LoginDisconnect.kt

@@ -1,8 +1,8 @@
 package com.viaversion.aas.packet.login
 
 import com.viaversion.aas.packet.Packet
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 
 class LoginDisconnect : Packet {
     lateinit var msg: String

src/main/kotlin/com/viaversion/aas/packet/login/LoginStart.kt

@@ -1,8 +1,8 @@
 package com.viaversion.aas.packet.login
 
 import com.viaversion.aas.packet.Packet
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 
 class LoginStart : Packet {
     lateinit var username: String

src/main/kotlin/com/viaversion/aas/packet/login/LoginSuccess.kt

@@ -2,9 +2,9 @@ package com.viaversion.aas.packet.login
 
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.parseUndashedId
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 import java.util.*
 
 class LoginSuccess : Packet {

src/main/kotlin/com/viaversion/aas/packet/login/PluginRequest.kt

@@ -2,8 +2,8 @@ package com.viaversion.aas.packet.login
 
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.readRemainingBytes
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 import kotlin.properties.Delegates
 
 class PluginRequest : Packet {

src/main/kotlin/com/viaversion/aas/packet/login/PluginResponse.kt

@@ -2,8 +2,8 @@ package com.viaversion.aas.packet.login
 
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.readRemainingBytes
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 import kotlin.properties.Delegates
 
 class PluginResponse : Packet {

src/main/kotlin/com/viaversion/aas/packet/login/SetCompression.kt

@@ -1,8 +1,8 @@
 package com.viaversion.aas.packet.login
 
 import com.viaversion.aas.packet.Packet
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 import kotlin.properties.Delegates
 
 class SetCompression : Packet {

src/main/kotlin/com/viaversion/aas/packet/play/Kick.kt

@@ -1,8 +1,8 @@
 package com.viaversion.aas.packet.play
 
 import com.viaversion.aas.packet.Packet
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 
 class Kick : Packet {
     lateinit var msg: String

src/main/kotlin/com/viaversion/aas/packet/play/PluginMessage.kt

@@ -3,9 +3,9 @@ package com.viaversion.aas.packet.play
 import com.viaversion.aas.packet.Packet
 import com.viaversion.aas.readByteArray
 import com.viaversion.aas.readRemainingBytes
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 
 class PluginMessage : Packet {
     lateinit var channel: String

src/main/kotlin/com/viaversion/aas/packet/status/StatusRequest.kt

@@ -3,7 +3,7 @@ package com.viaversion.aas.packet.status
 import com.viaversion.aas.packet.Packet
 import io.netty.buffer.ByteBuf
 
-class StatusRequest: Packet {
+class StatusRequest : Packet {
     override fun decode(byteBuf: ByteBuf, protocolVersion: Int) {
     }
 

src/main/kotlin/com/viaversion/aas/packet/status/StatusResponse.kt

@@ -1,8 +1,8 @@
 package com.viaversion.aas.packet.status
 
 import com.viaversion.aas.packet.Packet
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.type.Type
+import io.netty.buffer.ByteBuf
 
 class StatusResponse : Packet {
     lateinit var json: String

src/main/kotlin/com/viaversion/aas/platform/AspirinBackwards.kt

@@ -1,8 +1,8 @@
 package com.viaversion.aas.platform
 
 import com.viaversion.viabackwards.api.ViaBackwardsPlatform
-import org.slf4j.LoggerFactory
 import com.viaversion.viaversion.sponge.util.LoggerWrapper
+import org.slf4j.LoggerFactory
 import java.io.File
 import java.util.logging.Logger
 

src/main/kotlin/com/viaversion/aas/platform/AspirinPlatform.kt

@@ -1,20 +1,19 @@
 package com.viaversion.aas.platform
 
+import com.google.common.util.concurrent.ThreadFactoryBuilder
 import com.viaversion.aas.config.AspirinViaConfig
 import com.viaversion.aas.initFuture
 import com.viaversion.aas.viaaasVer
-import com.google.common.util.concurrent.ThreadFactoryBuilder
-import io.netty.channel.DefaultEventLoop
-import org.slf4j.LoggerFactory
 import com.viaversion.viaversion.api.ViaAPI
-import com.viaversion.viaversion.api.configuration.ViaVersionConfig
 import com.viaversion.viaversion.api.command.ViaCommandSender
 import com.viaversion.viaversion.api.configuration.ConfigurationProvider
-import com.viaversion.viaversion.api.platform.PlatformTask
+import com.viaversion.viaversion.api.configuration.ViaVersionConfig
 import com.viaversion.viaversion.api.platform.ViaPlatform
+import com.viaversion.viaversion.libs.gson.JsonObject
 import com.viaversion.viaversion.sponge.util.LoggerWrapper
 import com.viaversion.viaversion.util.VersionInfo
-import com.viaversion.viaversion.libs.gson.JsonObject
+import io.netty.channel.DefaultEventLoop
+import org.slf4j.LoggerFactory
 import java.io.File
 import java.util.*
 import java.util.concurrent.CompletableFuture
@@ -47,7 +46,7 @@ object AspirinPlatform : ViaPlatform<UUID> {
     override fun getDump(): JsonObject = JsonObject()
     override fun kickPlayer(p0: UUID, p1: String): Boolean = false
     override fun getApi(): ViaAPI<UUID> = AspirinViaAPI
-            override fun getDataFolder(): File = File("viaversion")
+    override fun getDataFolder(): File = File("viaversion")
     override fun getConf(): ViaVersionConfig = AspirinViaConfig
     override fun runAsync(p0: Runnable): AspirinTask = AspirinTask(CompletableFuture.runAsync(p0, executor))
     override fun getLogger(): Logger = LoggerWrapper(LoggerFactory.getLogger("ViaVersion"))

src/main/kotlin/com/viaversion/aas/platform/AspirinRewind.kt

@@ -1,8 +1,8 @@
 package com.viaversion.aas.platform
 
+import com.viaversion.viaversion.sponge.util.LoggerWrapper
 import de.gerrygames.viarewind.api.ViaRewindPlatform
 import org.slf4j.LoggerFactory
-import com.viaversion.viaversion.sponge.util.LoggerWrapper
 import java.util.logging.Logger
 
 object AspirinRewind : ViaRewindPlatform {

src/main/kotlin/com/viaversion/aas/protocol/AspirinProtocols.kt

@@ -8,6 +8,10 @@ import com.viaversion.viaversion.api.protocol.version.ProtocolVersion
 // cursed 1.7 -> 1.8 from https://github.com/Gerrygames/ClientViaVersion
 // + https://github.com/creeper123123321/ViaRewind/tree/17to18
 fun registerAspirinProtocols() {
-    Via.getManager().protocolManager.registerProtocol(Protocol1_7_6to1_7_2, ProtocolVersion.v1_7_6, ProtocolVersion.v1_7_1)
+    Via.getManager().protocolManager.registerProtocol(
+        Protocol1_7_6to1_7_2,
+        ProtocolVersion.v1_7_6,
+        ProtocolVersion.v1_7_1
+    )
     Via.getManager().protocolManager.registerProtocol(Protocol1_8To1_7_6, ProtocolVersion.v1_8, ProtocolVersion.v1_7_6)
 }

src/main/kotlin/com/viaversion/aas/protocol/Util.kt

@@ -1,7 +1,7 @@
 package com.viaversion.aas.protocol
 
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper
 import com.viaversion.viaversion.api.minecraft.Position
+import com.viaversion.viaversion.api.protocol.packet.PacketWrapper
 import com.viaversion.viaversion.api.protocol.remapper.ValueReader
 import com.viaversion.viaversion.api.protocol.remapper.ValueTransformer
 import com.viaversion.viaversion.api.protocol.remapper.ValueWriter

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/Protocol1_8To1_7_6.kt

@@ -4,7 +4,6 @@ import com.viaversion.aas.protocol.id47toid5.packets.*
 import com.viaversion.aas.protocol.id47toid5.storage.*
 import com.viaversion.viaversion.api.connection.UserConnection
 import com.viaversion.viaversion.api.protocol.AbstractSimpleProtocol
-import java.util.*
 
 // Based on https://github.com/Gerrygames/ClientViaVersion
 object Protocol1_8To1_7_6 : AbstractSimpleProtocol() {

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/chunks/ChunkPacketTransformer.kt

@@ -1,10 +1,10 @@
 package com.viaversion.aas.protocol.id47toid5.chunks
 
-import io.netty.buffer.ByteBuf
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper
 import com.viaversion.viaversion.api.minecraft.BlockChangeRecord1_8
+import com.viaversion.viaversion.api.protocol.packet.PacketWrapper
 import com.viaversion.viaversion.api.type.Type
 import com.viaversion.viaversion.api.type.types.CustomByteType
+import io.netty.buffer.ByteBuf
 import java.io.IOException
 import java.util.stream.IntStream
 import java.util.zip.DataFormatException
@@ -102,7 +102,8 @@ object ChunkPacketTransformer {
         }
         val chunks = arrayOfNulls<Chunk1_8to1_7_6_10>(columnCount)
         (0 until columnCount).forEach {
-            chunks[it] = Chunk1_8to1_7_6_10(inflatedBuffers[it]!!, primaryBitMask[it], addBitMask[it], skyLightSent, true)
+            chunks[it] =
+                Chunk1_8to1_7_6_10(inflatedBuffers[it]!!, primaryBitMask[it], addBitMask[it], skyLightSent, true)
         }
         packetWrapper.write(Type.BOOLEAN, skyLightSent)
         packetWrapper.write(Type.VAR_INT, columnCount)
@@ -133,13 +134,13 @@ object ChunkPacketTransformer {
         packetWrapper.write(Type.INT, chunkX)
         packetWrapper.write(Type.INT, chunkZ)
         packetWrapper.write(Type.BLOCK_CHANGE_RECORD_ARRAY, IntStream.range(0, size)
-                .mapToObj {
+            .mapToObj {
-                    val encodedPos = (positions[it].toInt())
+                val encodedPos = (positions[it].toInt())
-                    val x = encodedPos.ushr(12).and(0xF)
+                val x = encodedPos.ushr(12).and(0xF)
-                    val y = encodedPos.and(0xFF)
+                val y = encodedPos.and(0xFF)
-                    val z = encodedPos.ushr(8).and(0xF)
+                val z = encodedPos.ushr(8).and(0xF)
-                    BlockChangeRecord1_8(x, y, z, blocks[it].toInt())
+                BlockChangeRecord1_8(x, y, z, blocks[it].toInt())
-                }
+            }
-                .toList().toTypedArray())
+            .toList().toTypedArray())
     }
 }

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/metadata/MetadataRewriter.kt

@@ -1,11 +1,10 @@
 package com.viaversion.aas.protocol.id47toid5.metadata
 
-import de.gerrygames.viarewind.protocol.protocol1_8to1_7_6_10.metadata.MetaIndex1_8to1_7_6_10
 import com.viaversion.viaversion.api.Via
 import com.viaversion.viaversion.api.minecraft.entities.Entity1_10Types
 import com.viaversion.viaversion.api.minecraft.metadata.Metadata
 import com.viaversion.viaversion.api.minecraft.metadata.types.MetaType1_8
-import java.util.*
+import de.gerrygames.viarewind.protocol.protocol1_8to1_7_6_10.metadata.MetaIndex1_8to1_7_6_10
 
 object MetadataRewriter {
     fun transform(type: Entity1_10Types.EntityType?, list: MutableList<Metadata>) {

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/packets/EntityPackets.kt

@@ -5,13 +5,13 @@ import com.viaversion.aas.protocol.id47toid5.metadata.MetadataRewriter
 import com.viaversion.aas.protocol.id47toid5.storage.EntityTracker
 import com.viaversion.aas.protocol.id47toid5.type.CustomIntType
 import com.viaversion.aas.protocol.xyzToPosition
-import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.Types1_7_6_10
 import com.viaversion.viaversion.api.minecraft.entities.Entity1_10Types
+import com.viaversion.viaversion.api.protocol.packet.State
 import com.viaversion.viaversion.api.protocol.remapper.PacketRemapper
 import com.viaversion.viaversion.api.protocol.remapper.TypeRemapper
 import com.viaversion.viaversion.api.type.Type
 import com.viaversion.viaversion.api.type.types.version.Types1_8
-import com.viaversion.viaversion.api.protocol.packet.State
+import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.Types1_7_6_10
 import kotlin.experimental.and
 
 fun Protocol1_8To1_7_6.registerEntityPackets() {
@@ -36,7 +36,10 @@ fun Protocol1_8To1_7_6.registerEntityPackets() {
                     packetWrapper.write(Type.VAR_INT, entityId) //Entity Id
                     packetWrapper.write(Type.UNSIGNED_BYTE, 0.toShort()) //Index
                     packetWrapper.write(Type.UNSIGNED_BYTE, 0.toShort()) //Type
-                    packetWrapper.write(Type.BYTE, (if (animation.toInt() == 104) 0x02 else 0x00).toByte()) //Value (sneaking/not sneaking)
+                    packetWrapper.write(
+                        Type.BYTE,
+                        (if (animation.toInt() == 104) 0x02 else 0x00).toByte()
+                    ) //Value (sneaking/not sneaking)
                     packetWrapper.write(Type.UNSIGNED_BYTE, 255.toShort()) //end
                 } else {
                     packetWrapper.write(Type.VAR_INT, entityId) //Entity Id
@@ -381,7 +384,12 @@ fun Protocol1_8To1_7_6.registerEntityPackets() {
     this.registerServerbound(State.PLAY, 0x0B, 0x0B, object : PacketRemapper() {
         override fun registerMap() {
             map(Type.VAR_INT, Type.INT) //Entity Id
-            handler { packetWrapper -> packetWrapper.write(Type.BYTE, (packetWrapper.read(Type.VAR_INT) + 1).toByte()) } //Action Id
+            handler { packetWrapper ->
+                packetWrapper.write(
+                    Type.BYTE,
+                    (packetWrapper.read(Type.VAR_INT) + 1).toByte()
+                )
+            } //Action Id
             map(Type.VAR_INT, Type.INT) //Action Paramter
         }
     })

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/packets/InventoryPackets.kt

@@ -2,14 +2,14 @@ package com.viaversion.aas.protocol.id47toid5.packets
 
 import com.viaversion.aas.protocol.id47toid5.Protocol1_8To1_7_6
 import com.viaversion.aas.protocol.id47toid5.storage.Windows
-import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.Types1_7_6_10
 import com.viaversion.viaversion.api.minecraft.item.Item
+import com.viaversion.viaversion.api.protocol.packet.State
 import com.viaversion.viaversion.api.protocol.remapper.PacketRemapper
 import com.viaversion.viaversion.api.type.Type
-import com.viaversion.viaversion.api.protocol.packet.State
 import com.viaversion.viaversion.libs.kyori.adventure.text.Component
 import com.viaversion.viaversion.libs.kyori.adventure.text.serializer.gson.GsonComponentSerializer
 import com.viaversion.viaversion.libs.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer
+import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.Types1_7_6_10
 
 fun Protocol1_8To1_7_6.registerInventoryPackets() {
 

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/packets/LoginPackets.kt

@@ -1,9 +1,9 @@
 package com.viaversion.aas.protocol.id47toid5.packets
 
 import com.viaversion.aas.protocol.id47toid5.Protocol1_8To1_7_6
+import com.viaversion.viaversion.api.protocol.packet.State
 import com.viaversion.viaversion.api.protocol.remapper.PacketRemapper
 import com.viaversion.viaversion.api.type.Type
-import com.viaversion.viaversion.api.protocol.packet.State
 
 fun Protocol1_8To1_7_6.registerLoginPackets() {
     //Encryption Request

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/packets/PlayerPackets.kt

@@ -9,24 +9,23 @@ import com.viaversion.aas.protocol.id47toid5.storage.Scoreboard
 import com.viaversion.aas.protocol.id47toid5.storage.Tablist
 import com.viaversion.aas.protocol.xyzToPosition
 import com.viaversion.aas.protocol.xyzUBytePos
-import com.viaversion.aas.readRemainingBytes
-import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.CustomStringType
-import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.Types1_7_6_10
-import de.gerrygames.viarewind.utils.ChatUtil
-import io.netty.buffer.Unpooled
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper
 import com.viaversion.viaversion.api.Via
 import com.viaversion.viaversion.api.minecraft.entities.Entity1_10Types
 import com.viaversion.viaversion.api.minecraft.item.Item
+import com.viaversion.viaversion.api.protocol.packet.PacketWrapper
+import com.viaversion.viaversion.api.protocol.packet.State
 import com.viaversion.viaversion.api.protocol.remapper.PacketRemapper
 import com.viaversion.viaversion.api.protocol.remapper.TypeRemapper
 import com.viaversion.viaversion.api.type.Type
 import com.viaversion.viaversion.api.type.types.CustomByteType
 import com.viaversion.viaversion.api.type.types.version.Types1_8
-import com.viaversion.viaversion.api.protocol.packet.State
-import com.viaversion.viaversion.util.ChatColorUtil
 import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag
 import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag
+import com.viaversion.viaversion.util.ChatColorUtil
+import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.CustomStringType
+import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.Types1_7_6_10
+import de.gerrygames.viarewind.utils.ChatUtil
+import io.netty.buffer.Unpooled
 import java.nio.charset.StandardCharsets
 import java.util.*
 import kotlin.experimental.and

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/packets/WorldPackets.kt

@@ -5,14 +5,14 @@ import com.viaversion.aas.protocol.id47toid5.Protocol1_8To1_7_6
 import com.viaversion.aas.protocol.id47toid5.chunks.ChunkPacketTransformer
 import com.viaversion.aas.protocol.id47toid5.data.Particle1_8to1_7
 import com.viaversion.aas.protocol.id47toid5.storage.MapStorage
-import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.Types1_7_6_10
+import com.viaversion.viaversion.api.protocol.packet.State
 import com.viaversion.viaversion.api.protocol.remapper.PacketRemapper
 import com.viaversion.viaversion.api.protocol.remapper.TypeRemapper
 import com.viaversion.viaversion.api.type.Type
-import com.viaversion.viaversion.api.protocol.packet.State
-import com.viaversion.viaversion.protocols.protocol1_9to1_8.Protocol1_9To1_8
 import com.viaversion.viaversion.libs.kyori.adventure.text.serializer.gson.GsonComponentSerializer
 import com.viaversion.viaversion.libs.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer
+import com.viaversion.viaversion.protocols.protocol1_9to1_8.Protocol1_9To1_8
+import de.gerrygames.viarewind.protocol.protocol1_7_6_10to1_8.types.Types1_7_6_10
 import kotlin.experimental.and
 
 fun Protocol1_8To1_7_6.registerWorldPackets() {

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/storage/EntityTracker.kt

@@ -2,14 +2,13 @@ package com.viaversion.aas.protocol.id47toid5.storage
 
 import com.viaversion.aas.protocol.id47toid5.Protocol1_8To1_7_6
 import com.viaversion.aas.protocol.id47toid5.metadata.MetadataRewriter
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper
 import com.viaversion.viaversion.api.connection.StoredObject
 import com.viaversion.viaversion.api.connection.UserConnection
 import com.viaversion.viaversion.api.minecraft.entities.Entity1_10Types
 import com.viaversion.viaversion.api.minecraft.metadata.Metadata
+import com.viaversion.viaversion.api.protocol.packet.PacketWrapper
 import com.viaversion.viaversion.api.type.Type
 import com.viaversion.viaversion.api.type.types.version.Types1_8
-import java.lang.Exception
 import java.util.concurrent.ConcurrentHashMap
 
 class EntityTracker(user: UserConnection) : StoredObject(user) {

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/storage/MapStorage.kt

@@ -2,7 +2,6 @@ package com.viaversion.aas.protocol.id47toid5.storage
 
 import com.viaversion.viaversion.api.connection.StoredObject
 import com.viaversion.viaversion.api.connection.UserConnection
-import java.util.*
 
 class MapStorage(user: UserConnection) : StoredObject(user) {
     private val maps: MutableMap<Int, MapData> = HashMap()
@@ -18,5 +17,6 @@ class MapStorage(user: UserConnection) : StoredObject(user) {
         var scale: Byte = 0
         var mapIcons = emptyArray<MapIcon>()
     }
+
     class MapIcon(var direction: Byte, var type: Byte, var x: Byte, var z: Byte)
 }

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/storage/Scoreboard.kt

@@ -2,7 +2,6 @@ package com.viaversion.aas.protocol.id47toid5.storage
 
 import com.viaversion.viaversion.api.connection.StoredObject
 import com.viaversion.viaversion.api.connection.UserConnection
-import java.util.*
 
 class Scoreboard(user: UserConnection) : StoredObject(user) {
     private val objectives = HashMap<String, String>()

src/main/kotlin/com/viaversion/aas/protocol/id47toid5/type/CustomIntType.kt

@@ -1,7 +1,7 @@
 package com.viaversion.aas.protocol.id47toid5.type
 
-import io.netty.buffer.ByteBuf
 import com.viaversion.viaversion.api.type.PartialType
+import io.netty.buffer.ByteBuf
 
 class CustomIntType(amount: Int) : PartialType<IntArray, Int>(amount, IntArray::class.java) {
     override fun read(p0: ByteBuf, p1: Int): IntArray {

src/main/kotlin/com/viaversion/aas/protocol/id5toid4/Protocol1_7_6to1_7_2.kt

@@ -3,9 +3,9 @@ package com.viaversion.aas.protocol.id5toid4
 import com.viaversion.aas.protocol.INSERT_DASHES
 import com.viaversion.viaversion.api.connection.UserConnection
 import com.viaversion.viaversion.api.protocol.AbstractSimpleProtocol
+import com.viaversion.viaversion.api.protocol.packet.State
 import com.viaversion.viaversion.api.protocol.remapper.PacketRemapper
 import com.viaversion.viaversion.api.type.Type
-import com.viaversion.viaversion.api.protocol.packet.State
 
 // Based on https://github.com/Gerrygames/ClientViaVersion
 object Protocol1_7_6to1_7_2 : AbstractSimpleProtocol() {

src/main/kotlin/com/viaversion/aas/web/WebClient.kt

@@ -1,8 +1,8 @@
 package com.viaversion.aas.web
 
-import com.viaversion.aas.config.VIAaaSConfig
 import com.google.common.collect.Sets
 import com.google.common.util.concurrent.RateLimiter
+import com.viaversion.aas.config.VIAaaSConfig
 import io.ktor.features.*
 import io.ktor.websocket.*
 import java.util.*

src/main/kotlin/com/viaversion/aas/web/WebLogin.kt

@@ -26,7 +26,8 @@ class WebLogin : WebState {
             "offline_login" -> {
                 if (!sha512Hex(msg.toByteArray(Charsets.UTF_8)).startsWith("00000")) throw StacklessException("PoW failed")
                 if ((obj.getAsJsonPrimitive("date").asLong - System.currentTimeMillis()).absoluteValue
-                    > Duration.ofMinutes(2).toMillis()) {
+                    > Duration.ofMinutes(2).toMillis()
+                ) {
                     throw StacklessException("Invalid PoW date")
                 }
                 val username = obj.get("username").asString.trim()

src/main/resources/web/index.html

@@ -2,140 +2,171 @@
 <html lang="en">
 <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
     <title>VIAaaS</title>
-    <meta name="application-name" content="VIAaaS">
+    <meta content="VIAaaS" name="application-name">
-    <meta property="og:site_name" content="VIAaaS">
+    <meta content="VIAaaS" property="og:site_name">
-    <meta name="description" content="VIAaaS - ViaVersion as a Service - ViaVersion standalone proxy">
+    <meta content="VIAaaS - ViaVersion as a Service - ViaVersion standalone proxy" name="description">
-    <meta property="og:title" content="VIAaaS">
+    <meta content="VIAaaS" property="og:title">
-    <meta property="og:description" content="VIAaaS - ViaVersion as a Service - ViaVersion standalone proxy">
+    <meta content="VIAaaS - ViaVersion as a Service - ViaVersion standalone proxy" property="og:description">
-    <meta property="og:type" content="game">
+    <meta content="game" property="og:type">
-    <meta property="og:image" content="https://cdn.discordapp.com/attachments/698483428915675186/821487447664885770/unknown.png">
+    <meta content="https://cdn.discordapp.com/attachments/698483428915675186/821487447664885770/unknown.png"
-    <link rel="icon" href="https://cdn.discordapp.com/attachments/698483428915675186/821487447664885770/unknown.png">
+          property="og:image">
-    <meta http-equiv="Content-Security-Policy" content="default-src 'self';
+    <link href="https://cdn.discordapp.com/attachments/698483428915675186/821487447664885770/unknown.png" rel="icon">
+    <meta content="default-src 'self';
  style-src https://cdnjs.cloudflare.com/ 'self';
  img-src data: https://cdn.discordapp.com/ https://crafthead.net/ https://crafatar.com/;
  connect-src 'self' http://localhost:*/ https: wss:;
- script-src 'sha256-47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=' 'self' https://ajax.cloudflare.com/ https://cdnjs.cloudflare.com/ https://alcdn.msauth.net/">
+ script-src 'sha256-47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=' 'self' https://ajax.cloudflare.com/ https://cdnjs.cloudflare.com/ https://alcdn.msauth.net/" http-equiv="Content-Security-Policy">
-    <meta name="referrer" content="no-referrer">
+    <meta content="no-referrer" name="referrer">
-    <meta name="robots" content="noindex">
+    <meta content="noindex" name="robots">
-    <meta name="theme-color" content="#0468a1">
+    <meta content="#0468a1" name="theme-color">
-    <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.0.0-beta1/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1" crossorigin="anonymous">
+    <link crossorigin="anonymous"
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.0.0-beta1/js/bootstrap.bundle.min.js" integrity="sha512-q2vREMvON/xrz1KuOj5QKWmdvcHtM4XNbNer+Qbf4TOj+RMDnul0Fg3VmmYprdf3fnL1gZgzKhZszsp62r5Ugg==" crossorigin="anonymous"></script>
+          href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.0.0-beta1/css/bootstrap.min.css" integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1"
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.slim.js" integrity="sha512-1lagjLfnC1I0iqH9plHYIUq3vDMfjhZsLy9elfK89RBcpcRcx4l+kRJBSnHh2Mh6kLxRHoObD1M5UTUbgFy6nA==" crossorigin="anonymous"></script>
+          rel="stylesheet">
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+    <script crossorigin="anonymous"
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+            src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.slim.js"></script>
+    <script crossorigin="anonymous"
+            integrity="sha512-UNM1njAgOFUa74Z0bADwAq8gbTcqZC8Ej4xPSzpnh0l6KMevwvkBvbldF9uR++qKeJ+MOZHRjV1HZjoRvjDfNQ=="
+            src="https://cdnjs.cloudflare.com/ajax/libs/uuid/8.3.2/uuid.min.js"></script>
+    <script crossorigin="anonymous"
+            integrity="sha512-/yIGjYJZIXZx10ig0yhbK41OiwcqBUxIj0xQJe+NwkMIdS/u07b6Mwo0nvXB4o7A6WiKnKOf92JwE5Ezo27u9Q=="
+            src="https://cdnjs.cloudflare.com/ajax/libs/jsSHA/3.2.0/sha.min.js"></script>
+    <script crossorigin="anonymous"
+            integrity="sha384-5Fqyq1ncNYhL2mXCdWAFXkf2wWtKeA0mXYp++ryAX1lowD0ctAHFdity37L/ULXh"
+            src="https://alcdn.msauth.net/browser/2.7.0/js/msal-browser.js"></script>
     <link href="style.css" rel="stylesheet">
 </head>
 <body>
 <nav class="navbar navbar-expand-lg navbar-dark bg-dark">
-  <div class="container-fluid">
+    <div class="container-fluid">
-    <a class="navbar-brand" href="javascript:">VIAaaS</a>
+        <a class="navbar-brand" href="javascript:">VIAaaS</a>
-    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
+        <button aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation" class="navbar-toggler"
-      <span class="navbar-toggler-icon"></span>
+                data-bs-target="#navbarSupportedContent" data-bs-toggle="collapse" type="button">
-    </button>
+            <span class="navbar-toggler-icon"></span>
-    <div class="collapse navbar-collapse" id="navbarSupportedContent">
+        </button>
-      <ul class="navbar-nav nav" role="tablist">
+        <div class="collapse navbar-collapse" id="navbarSupportedContent">
-        <li class="nav-item" role="presentation">
+            <ul class="navbar-nav nav" role="tablist">
-          <a class="nav-link active" id="home-tab" data-bs-toggle="tab" href="#home" role="tab" aria-controls="home" aria-selected="true">Status</a>
+                <li class="nav-item" role="presentation">
-        </li>
+                    <a aria-controls="home" aria-selected="true" class="nav-link active" data-bs-toggle="tab" href="#home"
-        <li class="nav-item" role="presentation">
+                       id="home-tab" role="tab">Status</a>
-          <a class="nav-link" id="accounts-tab" data-bs-toggle="tab" href="#accounts" role="tab" aria-controls="accounts" aria-selected="false">Accounts</a>
+                </li>
-        </li>
+                <li class="nav-item" role="presentation">
-        <li class="nav-item" role="presentation">
+                    <a aria-controls="accounts" aria-selected="false" class="nav-link" data-bs-toggle="tab" href="#accounts"
-          <a class="nav-link" id="settings-tab" data-bs-toggle="tab" href="#settings" role="tab" aria-controls="settings" aria-selected="false">Settings</a>
+                       id="accounts-tab" role="tab">Accounts</a>
-        </li>
+                </li>
-        <li class="nav-item dropdown">
+                <li class="nav-item" role="presentation">
-          <a class="nav-link dropdown-toggle" href="#" id="aboutDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
+                    <a aria-controls="settings" aria-selected="false" class="nav-link" data-bs-toggle="tab" href="#settings"
-            About
+                       id="settings-tab" role="tab">Settings</a>
-          </a>
+                </li>
-          <ul class="dropdown-menu dropdown-menu-dark" aria-labelledby="aboutDropdown">
+                <li class="nav-item dropdown">
-            <li><a class="dropdown-item" data-bs-toggle="modal" href="#aboutModal" role="tab">About VIAaaS</a></li>
+                    <a aria-expanded="false" class="nav-link dropdown-toggle" data-bs-toggle="dropdown" href="#"
-          </ul>
+                       id="aboutDropdown" role="button">
-        </li>
+                        About
-      </ul>
+                    </a>
+                    <ul aria-labelledby="aboutDropdown" class="dropdown-menu dropdown-menu-dark">
+                        <li><a class="dropdown-item" data-bs-toggle="modal" href="#aboutModal" role="tab">About
+                            VIAaaS</a></li>
+                    </ul>
+                </li>
+            </ul>
+        </div>
     </div>
-  </div>
 </nav>
 <div class="container tab-content" id="content">
-    <div id="home" class="tab-pane fade show active" aria-labelledby="home-tab">
+    <div aria-labelledby="home-tab" class="tab-pane fade show active" id="home">
-	<p>WebSocket connection status: <span id="connection_status" class="text-white bg-dark">?</span></p>
+        <p>WebSocket connection status: <span class="text-white bg-dark" id="connection_status">?</span></p>
-        <p>CORS Proxy status: <span id="cors_status" class="text-white bg-dark">?</span></p>
+        <p>CORS Proxy status: <span class="text-white bg-dark" id="cors_status">?</span></p>
-	<hr>
+        <hr>
-	<p><span id="actions"></span></p>
+        <p><span id="actions"></span></p>
-	<p>Listening to logins from: <span id="listening"></span></p>
+        <p>Listening to logins from: <span id="listening"></span></p>
     </div>
 
-    <div id="settings" class="tab-pane fade" aria-labelledby="settings-tab">
+    <div aria-labelledby="settings-tab" class="tab-pane fade" id="settings">
         <div class="mb-3">
-          <label for="cors-proxy" class="form-label">CORS Proxy URL Prefix</label>
+            <label class="form-label" for="cors-proxy">CORS Proxy URL Prefix</label>
-          <p>See <a href="https://github.com/ViaVersion/VIAaaS#cors-proxy">README</a>
+            <p>See <a href="https://github.com/ViaVersion/VIAaaS#cors-proxy">README</a>
-            for setting up one. Mojang APIs are called through this proxy, and a remote IP address may look suspicious and block your account.
+                for setting up one. Mojang APIs are called through this proxy, and a remote IP address may look
-            It will receive sensitive data like email, passwords and tokens. HTTPS is required for non-localhost addresses.</p>
+                suspicious and block your account.
-          <input type="url" class="form-control" id="cors-proxy" placeholder="http://localhost:8080/">
+                It will receive sensitive data like email, passwords and tokens. HTTPS is required for non-localhost
+                addresses.</p>
+            <input class="form-control" id="cors-proxy" placeholder="http://localhost:8080/" type="url">
         </div>
         <div class="mb-3">
-          <label for="ws-url" class="form-label">WebSocket URL</label>
+            <label class="form-label" for="ws-url">WebSocket URL</label>
-          <p>It exchanges sensitive data like minecraft.id tokens, server session hashes and usernames. WSS is required.</p>
+            <p>It exchanges sensitive data like minecraft.id tokens, server session hashes and usernames. WSS is
-          <input type="url" class="form-control" id="ws-url" placeholder="wss://viaaas.example.com/ws">
+                required.</p>
+            <input class="form-control" id="ws-url" placeholder="wss://viaaas.example.com/ws" type="url">
         </div>
     </div>
 
-    <div id="accounts" class="tab-pane fade" aria-labelledby="accounts-tab">
+    <div aria-labelledby="accounts-tab" class="tab-pane fade" id="accounts">
-	<div>
+        <div>
-          <p>Browser Minecraft accounts:</p>
+            <p>Browser Minecraft accounts:</p>
-          <div id="accounts-list"></div>
+            <div id="accounts-list"></div>
-          <hr>
+            <hr>
-	</div>
+        </div>
         <div id="add-account">
-            <label for="form_add_ms" class="mb-3">Add Microsoft account:</label>
+            <label class="mb-3" for="form_add_ms">Add Microsoft account:</label>
-            <form id="form_add_ms" class="row">
+            <form class="row" id="form_add_ms">
-              <div class="col-auto">
+                <div class="col-auto">
-                <button id="login_submit_ms" type="submit" class="btn btn-primary mb-3">Login with Microsoft</button>
+                    <button class="btn btn-primary mb-3" id="login_submit_ms" type="submit">Login with Microsoft
-              </div>
+                    </button>
+                </div>
             </form>
-            <label for="form_add_mc" class="mb-3">Add Mojang account:</label>
+            <label class="mb-3" for="form_add_mc">Add Mojang account:</label>
-            <form id="form_add_mc" class="row g-3">
+            <form class="row g-3" id="form_add_mc">
-              <div class="col-auto">
+                <div class="col-auto">
-                <label for="email" class="visually-hidden">Username/Email</label>
+                    <label class="visually-hidden" for="email">Username/Email</label>
-                <input type="text" id="email" name="email" class="form-control" placeholder="mc@example.com">
+                    <input class="form-control" id="email" name="email" placeholder="mc@example.com" type="text">
-              </div>
+                </div>
-              <div class="col-auto">
+                <div class="col-auto">
-                <label for="password" class="visually-hidden">Password</label>
+                    <label class="visually-hidden" for="password">Password</label>
-                <input type="password" id="password" name="password" class="form-control" placeholder="password">
+                    <input class="form-control" id="password" name="password" placeholder="password" type="password">
-              </div>
+                </div>
-              <div class="col-auto">
+                <div class="col-auto">
-                <button id="login_submit_mc" type="submit" class="btn btn-primary mb-3">Login with Minecraft</button>
+                    <button class="btn btn-primary mb-3" id="login_submit_mc" type="submit">Login with Minecraft
-              </div>
+                    </button>
+                </div>
             </form>
         </div>
     </div>
 </div>
 
-<div class="modal fade" id="aboutModal" tabindex="-1" aria-labelledby="aboutModalLabel" aria-hidden="true">
+<div aria-hidden="true" aria-labelledby="aboutModalLabel" class="modal fade" id="aboutModal" tabindex="-1">
-  <div class="modal-dialog">
+    <div class="modal-dialog">
-    <div class="modal-content">
+        <div class="modal-content">
-      <div class="modal-header">
+            <div class="modal-header">
-        <h5 class="modal-title" id="aboutModalLabel">About</h5>
+                <h5 class="modal-title" id="aboutModalLabel">About</h5>
-        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                <button aria-label="Close" class="btn-close" data-bs-dismiss="modal" type="button"></button>
-      </div>
+            </div>
-      <div class="modal-body">
+            <div class="modal-body">
-        <p>Copyright © 2020-2021 <a href="https://github.com/creeper123123321">creeper123123321</a></p>
+                <p>Copyright © 2020-2021 <a href="https://github.com/creeper123123321">creeper123123321</a></p>
-        <p>Copyright © 2021 <a href="https://github.com/ViaVersion/VIAaaS/graphs/contributors">contributors</a></p>
+                <p>Copyright © 2021 <a href="https://github.com/ViaVersion/VIAaaS/graphs/contributors">contributors</a>
-        <p>This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by
+                </p>
-the Free Software Foundation, either version 3 of the License, or (at your option) any later version.</p>
+                <p>This program is free software: you can redistribute it and/or modify it under the terms of the GNU
-        <p>This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+                    Affero General Public License as published by
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.</p>
+                    the Free Software Foundation, either version 3 of the License, or (at your option) any later
-        <p>You should have received a copy of the GNU Affero General Public License along with this program. If not, see
+                    version.</p>
-<a href="https://gnu.org/licenses">http://www.gnu.org/licenses/</a>.</p>
+                <p>This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
-      </div>
+                    even the implied warranty of
-      <div class="modal-footer">
+                    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
-        <a role="button" type="button" class="btn btn-secondary" href="https://github.com/ViaVersion/VIAaaS/">Source Code</a>
+                    more details.</p>
-        <button type="button" class="btn btn-primary" data-bs-dismiss="modal">Close</button>
+                <p>You should have received a copy of the GNU Affero General Public License along with this program. If
-      </div>
+                    not, see
+                    <a href="https://gnu.org/licenses">http://www.gnu.org/licenses/</a>.</p>
+            </div>
+            <div class="modal-footer">
+                <a class="btn btn-secondary" href="https://github.com/ViaVersion/VIAaaS/" role="button" type="button">Source
+                    Code</a>
+                <button class="btn btn-primary" data-bs-dismiss="modal" type="button">Close</button>
+            </div>
+        </div>
     </div>
-  </div>
 </div>
 
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