Bump version to 3.7.1-SNAPSHOT

acceptableRemoteVersions = "*", clientSideOnly=true

Remove spam debug msg

.github/FUNDING.yml

@@ -0,0 +1,2 @@
+github: FlorianMichael
+custom: ["https://florianmichael.de/donate"]

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,53 @@
+name: Bug Report
+description: Report a bug in ViaForge
+labels: [bug]
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        **Before reporting a bug, please see if using latest build from https://github.com/ViaVersion/ViaForge/actions fixes your issue.**
+        Whenever you see fit, you can upload images or videos to any of the text fields.
+
+  - type: textarea
+    attributes:
+      label: General Information
+      description: |
+        Please provide a list of all installed mods
+      placeholder: |
+        Example: "ViaForge, Optifine, Xaeros Minimap, WorldEdit, WorldGuard, etc."
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Bug Description
+      description: |
+        Describe the unexpected behavior.
+        If you want to attach screenshots, use the comment field at the bottom of the page.
+      placeholder: |
+        Example: "Joining server xy causes my game to crash."
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Steps to Reproduce
+      description: |
+        List the steps on how we can reproduce the issue. Make sure I can easily understand what you mean with each step.
+      placeholder: |
+        Example:
+        1. Joining server xy with version 1.14.4
+        2. Game crashes
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Expected Behavior
+      description: |
+        Describe what exactly you expected to happen.
+      placeholder: |
+        Example: "the game should not crash when I join server xy."
+    validations:
+      required: true

.github/workflows/main.yml

@@ -1,30 +1,33 @@
-name: ViaForge build
+name: ViaForge CI
 on: [pull_request, push, workflow_dispatch]
 
 jobs:
   build:
-    strategy:
-      matrix:
-        java: ["8"]
-        os: ["ubuntu-22.04"]
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-22.04
     steps:
-      - name: Checkout the repository
-        uses: actions/checkout@v3
-      - name: Validate Gradle wrapper
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+      - name: Validate Gradle Wrapper
         uses: gradle/wrapper-validation-action@v1
-      - name: Setup JDK ${{ matrix.java }}
+      - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
-          java-version: ${{ matrix.java }}
+          java-version: 17
           distribution: 'temurin'
-      - name: Make Gradle wrapper runnable on Unix
-        run: chmod +x ./gradlew
-      - name: Build
-        run: ./gradlew build
+          check-latest: true
+      - name: Cache Dependencies
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+      - name: Build with Gradle
+        run: ./gradlew shadowJar
       - name: Upload Build Artifacts
-        if: ${{ runner.os == 'Linux' && matrix.java == '8' }}
         uses: actions/upload-artifact@v3
         with:
-          name: ViaForge-1.12.2
-          path: build/libs/
+          name: ViaForge All-in-One
+          path: viaforge-mc*/build/libs/

.gitignore

@@ -1,4 +1,5 @@
-# eclipse
+# Eclipse
+
 bin
 *.launch
 .settings
@@ -6,18 +7,18 @@ bin
 .classpath
 .project
 
-# idea
+# Idea
 out
 *.ipr
 *.iws
 *.iml
 .idea
 
-# gradle
+# Gradle
 build
 .gradle
 
-# other
+# Others
 eclipse
 run
 

.idea/copyright/GPL_3_0.xml

@@ -0,0 +1,6 @@
+<component name="CopyrightManager">
+  <copyright>
+    <option name="notice" value="This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge&#10;Copyright (C) 2021-&amp;#36;today.year FlorianMichael/EnZaXD &lt;florian.michael07@gmail.com&gt; and contributors&#10;&#10;This program is free software: you can redistribute it and/or modify&#10;it under the terms of the GNU General Public License as published by&#10;the Free Software Foundation, either version 3 of the License, or&#10;(at your option) any later version.&#10;&#10;This program is distributed in the hope that it will be useful,&#10;but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;GNU General Public License for more details.&#10;&#10;You should have received a copy of the GNU General Public License&#10;along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;." />
+    <option name="myName" value="GPL-3.0" />
+  </copyright>
+</component>

.idea/copyright/profiles_settings.xml

@@ -0,0 +1,8 @@
+<component name="CopyrightManager">
+    <settings default="GPL_3_0">
+        <module2copyright>
+            <element module="Project Files" copyright="GPL-3.0" />
+        </module2copyright>
+        <LanguageOptions name="__TEMPLATE__" />
+    </settings>
+</component>

CHANGELOG.md

@@ -0,0 +1,4 @@
+- Updated Via* projects to support 1.20.5
+- Fixed version in 1.12 mcmod.info file
+- Fixed connecting issues and other desyncs
+- Fixed pre netty versions not working on online servers

README.md

@@ -1,40 +1,52 @@
 # ViaForge
-Client-side Implementation of ViaVersion for Forge
+Client-side Implementation of the Via* projects for Minecraft Forge
 
 ## Contact
 If you encounter any issues, please report them on the
-[issue tracker](https://github.com/FlorianMichael/ViaForge/issues).  
+[issue tracker](https://github.com/ViaVersion/ViaForge/issues).  
 If you just want to talk or need help with ViaForge feel free to join the ViaVersion
 [Discord](https://discord.gg/viaversion).
 
 ## For users
 ### Where can I download the latest version?
 CurseForge: https://www.curseforge.com/minecraft/mc-mods/viaforge
+
 Modrinth: https://modrinth.com/mod/viaforge
 
-### Can you add new textures and blocks from higher versions?
-No, because it is too time-consuming
+GitHub Releases: https://github.com/ViaVersion/ViaForge
 
-### ViaVersion throws an error, or I can't access a server, what should I do?
-First of all see if it's because of an installed mod, otherwise come to the support Discord and tell me logs, mc version etc.
-
-### Certain collisions or other items bug, can you fix it?
-No
+### How does it work?
+![](.github/images/ViaVersion.png)
 
 ## For developers
-### How does it work?
-![](images/via-expl.png)
-
 ### Project Structure
-All ViaForge versions from Minecraft version 1.12 onwards are on the `master` branch. <br>
+All ViaForge versions from Minecraft version 1.12.2 onwards are on the `master` branch. <br>
 The names of the submodules indicate the version, they are always given in the format `mc-<version name without .>`. <br>
-`Minecraft 1.12.2` - `mc1122`
+`Minecraft 1.12.2` - `viaforge-mc1122` <br>
+`Minecraft 1.16.5` - `viaforge-mc1165` <br>
+`Minecraft 1.17.1` - `viaforge-mc1171` <br>
+`Minecraft 1.18.2` - `viaforge-mc1182` <br>
+`Minecraft 1.19.4` - `viaforge-mc1194` <br>
+`Minecraft 1.20.4` - `viaforge-mc1204` <br>
 
 ### ViaForge for Minecraft 1.8
-Since ForgeGradle for Minecraft 1.8 is too old, it has its own branch called `legacy-1.8`
+Since ForgeGradle for Minecraft 1.8.9 is too old, it has its own branch called `legacy-1.8`
 
 ### I want ViaForge in my own utility mod
 Just take a look at my other Project called `ViaMCP`: https://github.com/FlorianMichael/ViaMCP
 
-## Other Via related Projects
-ViaFabric - Clientside Via implementation for Fabric: https://www.curseforge.com/minecraft/mc-mods/viafabric
+## For developers
+### How to build
+1. Clone the repository with `git clone`.
+2. Run `./gradlew build` in the root directory of the repository.
+3. The compiled jar files can be found in `viaforge-mc<version>/build/libs`.
+
+Note: Build scripts are made to be run using Java 17.
+
+## Other ViaVersion Mods / Platforms
+- ViaFabric - https://modrinth.com/mod/viafabric
+- ViaFabricPlus - https://github.com/ViaVersion/ViaFabricPlus (Includes additional modifications to make the experience better)
+- ViaProxy (App) - https://github.com/ViaVersion/ViaProxy
+- ViaaaS (Proxy) - https://github.com/ViaVersion/ViaaaS
+
+### If you want to talk with me, feel free to join my [Discord](https://discord.gg/BwWhCHUKDf)

build.gradle

@@ -1,3 +1,225 @@
-plugins {
-    id "java"
+buildscript {
+    repositories {
+        gradlePluginPortal()
+
+        maven { url = "https://repo.spongepowered.org/repository/maven-public/" }
+        maven { url = "https://jitpack.io/" }
+        maven { url = "https://files.minecraftforge.net/maven" }
+    }
+
+    dependencies {
+        classpath "com.github.johnrengelman:shadow:7.1.2"
+        classpath "net.minecraftforge.gradle:ForgeGradle:6.+"
+        classpath "org.spongepowered:mixingradle:0.7-SNAPSHOT"
+        classpath "me.modmuss50:mod-publish-plugin:0.5.1"
+        classpath "xyz.wagyourtail.jvmdowngrader:gradle-plugin:0.6.1"
+    }
 }
+
+allprojects {
+    apply plugin: "java-library"
+    apply plugin: "com.github.johnrengelman.shadow"
+    apply plugin: "me.modmuss50.mod-publish-plugin"
+    apply plugin: "xyz.wagyourtail.jvmdowngrader"
+
+    java {
+        // Minecraft 1.17+ required Java 16/17 to compile
+        toolchain.languageVersion = JavaLanguageVersion.of(17)
+    }
+
+    // We define the configuration here so we can use it across all conventions and platforms
+    // To define which projects/source files should be included in the jar
+    configurations {
+        library
+        implementation.extendsFrom(library)
+    }
+
+    // Repositories for the ViaVersion dependencies defined below
+    repositories {
+        maven {
+            url = "https://repo.spongepowered.org/repository/maven-public"
+        }
+        maven {
+            url = "https://repo.viaversion.com"
+            metadataSources {
+                mavenPom()
+                artifact()
+            }
+        }
+    }
+
+    // Replace the version in the mcmod.info and mods.toml files with the project version
+    // Since this depends on the platform version, we can't define it in the global scope :(
+    tasks {
+        processResources {
+            for (final def file in ["mcmod.info", "META-INF/mods.toml"]) {
+                filesMatching(file) {
+                    expand "version": project.version
+                }
+            }
+        }
+    }
+
+    // Including all required libraries for ViaVersion {for version numbers see gradle.properties}
+    dependencies {
+        compileOnly "io.netty:netty-all:4.0.20.Final"
+
+        library "com.viaversion:viaversion-common:${project.viaversion_version}"
+        library "com.viaversion:viabackwards-common:${project.viabackwards_version}"
+        library "com.viaversion:viarewind-common:${project.viarewind_version}"
+        library ("net.raphimc:ViaLegacy:${project.vialegacy_version}") {
+            exclude group: "com.google.code.gson", module: "gson"
+        }
+        library "net.raphimc:ViaAprilFools:${project.viaaprilfools_version}"
+        library ("net.raphimc:ViaLoader:${project.vialoader_version}") {
+            exclude group: "com.google.guava"
+            exclude group: "org.slf4j"
+        }
+
+        library "org.yaml:snakeyaml:${project.snake_yml_version}"
+    }
+}
+
+subprojects {
+    apply plugin: "net.minecraftforge.gradle"
+    apply plugin: "org.spongepowered.mixin"
+
+    // Define the jar output attributes for all platforms
+    archivesBaseName = project.maven_name
+    version = maven_version
+    group = maven_group
+
+    // Used to execute code only for specific submodules
+    def versionId = Integer.parseInt(project.mc_version.replace(".", ""))
+
+    compileJava.options.encoding = "UTF-8"
+
+    minecraft {
+        runs {
+            client {
+                workingDirectory project.file("run")
+
+                property "forge.logging.markers", "REGISTRIES"
+                property "forge.logging.console.level", "debug"
+
+                // mixin
+                property "mixin.debug.export", "true"
+                property "mixin.hotSwap", "true"
+                property "fml.coreMods.load", "de.florianmichael.viaforge.mixin.MixinLoader" // Only required for MC 1.12, but modern Forges skips this anyway
+                args "-mixin.config=" + "mixins." + project.getProperty('maven_name') + ".json"
+
+                // source set
+                mods {
+                    "${project.maven_name}" {
+                        source sourceSets.main
+                    }
+                }
+            }
+        }
+    }
+
+    sourceSets.main.resources {
+        srcDir "src/generated/resources"
+    }
+
+    dependencies {
+        if (versionId >= 1_17_1) {
+            // Minecraft 1.17+ already includes slf4j, so we don't need to include it
+            compileOnly "org.slf4j:slf4j-api:${slf4j_version}"
+        } else {
+            library "org.slf4j:slf4j-api:${slf4j_version}"
+        }
+
+        library "org.spongepowered:mixin:${mixin_version}"
+        annotationProcessor "org.spongepowered:mixin:${mixin_version}:processor"
+
+        library project(":") // Include the base project, to get Common-ViaForge
+    }
+
+    mixin {
+        add sourceSets.main, "mixins.${project.maven_name}.refmap.json"
+    }
+
+    jar {
+        manifest.attributes(
+                "Specification-Title": "viaforge",
+                "Specification-Vendor": "viaforge",
+                "Specification-Version": project.version,
+                "Implementation-Title": project.name,
+                "Implementation-Version": project.version,
+                "Implementation-Vendor" :"viaforge",
+                "Implementation-Timestamp": new Date().format("yyyy-MM-dd"-"HH:mm:ssZ"),
+                "TweakClass": "org.spongepowered.asm.launch.MixinTweaker",
+                "TweakOrder": "0",
+                "FMLCorePluginContainsFMLMod": "true", // Only required for MC 1.12, but modern Forges skips this anyway
+                "FMLCorePlugin": "de.florianmichael.viaforge.mixin.MixinLoader", // Counterpart to the above
+                "MixinConfigs": "mixins.${project.maven_name}.json",
+                "ForceLoadAsMod": "true"
+        )
+        enabled = false
+    }
+
+    shadowJar {
+        if (versionId >= 1_17_1) {
+            archiveFileName = jar.archiveFileName
+        } else {
+            destinationDirectory = temporaryDir
+        }
+        configurations = [project.configurations.library] // Include the dependencies from the include configuration
+        duplicatesStrategy DuplicatesStrategy.EXCLUDE
+
+        // Prevent conflicts with Forge's weird service loading
+        exclude("META-INF/maven/**")
+        exclude("META-INF/versions/**")
+
+        if (versionId >= 1_13_2) {
+            // We don't need to package mixins into Forge 1.13+ jars, since Forge already has it
+            exclude("org/spongepowered/**")
+        }
+        if (versionId >= 1_16_5) {
+            // Get rid of the services folder, since Forge 1.16+ would conflict with some of the ForgeDev Environment's services
+            // And since we don't need them for Mixins anyway, we can just exclude them from the shadowJar
+            exclude("META-INF/services/**")
+        }
+    }
+
+    downgradeJar {
+        inputFile = shadowJar.archiveFile
+        destinationDirectory = temporaryDir
+    }
+
+    shadeDowngradedApi {
+        archiveFileName = jar.archiveFileName
+    }
+
+    publishMods {
+        file = shadowJar.archiveFile
+        type = STABLE
+        displayName = rootProject.name + ' ' + project.version
+        version = project.version + "+" + project.mc_version
+        modLoaders.add("forge")
+        changelog = file("../CHANGELOG.md").text
+        dryRun = rootProject.maven_version.contains("SNAPSHOT")
+
+        curseforge {
+            accessToken = providers.gradleProperty("curseforge.publishing_token")
+            projectId = "418933"
+            minecraftVersions.addAll(project.mc_version.split(','))
+        }
+        modrinth {
+            accessToken = providers.gradleProperty("modrinth.publishing_token")
+            projectId = "Z6se2s8f"
+            minecraftVersions.addAll(project.mc_version.split(','))
+        }
+    }
+
+    reobf {
+        shadowJar {}
+    }
+
+    jar.dependsOn("shadowJar")
+    if (versionId < 1_17_1) {
+        // Downgrade the jar to Java 8 for Minecraft 1.16.5 and below
+        jar.dependsOn("shadeDowngradedApi")
+    }
+}

gradle.properties

@@ -1,19 +1,21 @@
-# java
-org.gradle.jvmargs=-Xmx3G
+# Gradle Properties
+org.gradle.jvmargs=-Xmx3G -XX:+UseG1GC
 org.gradle.daemon=false
 
-# forge
-mod_id=viaforge
-mod_name=ViaForge
-mod_version=3.3.2
-mod_base_package=de.florianmichael
+# Project Details
+maven_version=3.7.1-SNAPSHOT
+maven_group=de.florianmichael
 
-# mixin
+# ViaVersion
+viaversion_version=5.0.1-SNAPSHOT
+viabackwards_version=5.0.1-SNAPSHOT
+viarewind_version=4.0.0
+vialegacy_version=3.0.1-SNAPSHOT
+viaaprilfools_version=3.0.1-SNAPSHOT
+vialoader_version=3.0.1-SNAPSHOT
+
+snake_yml_version=2.2
+
+# Misc Libraries
+slf4j_version=2.0.7
 mixin_version=0.8.3
-
-# via-version
-vialoader_version=2.2.5-SNAPSHOT
-viaversion_version=4.7.0
-viabackwards_version=4.7.0
-viarewind_version=2.0.4-SNAPSHOT
-snake_yml_version=2.0

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# Copyright © 2015-2021 the original authors.
+# Copyright © 2015-2021 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -32,10 +32,10 @@
 #       Busybox and similar reduced shells will NOT work, because this script
 #       requires all of these POSIX shell features:
 #         * functions;
-#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
-#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
-#         * compound commands having a testable exit status, especially «case»;
-#         * various built-in commands including «command», «set», and «ulimit».
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
 #
 #   Important for patching:
 #
@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,13 +80,11 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,22 +131,29 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -193,11 +198,15 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
@@ -205,6 +214,12 @@ set -- \
         org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.

gradlew.bat

@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,13 +41,13 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -56,11 +57,11 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal

mc1122/build.gradle

@@ -1,147 +0,0 @@
-buildscript {
-    repositories {
-        mavenCentral()
-        gradlePluginPortal()
-
-        maven { url = "https://maven.minecraftforge.net/" }
-        maven { url = "https://repo.spongepowered.org/repository/maven-public/" }
-        maven { url = "https://jitpack.io/" }
-        maven { url = "https://files.minecraftforge.net/maven" }
-        maven { url = "https://plugins.gradle.org/m2" }
-    }
-
-    dependencies {
-        classpath "net.minecraftforge.gradle:ForgeGradle:5.1.+"
-        classpath "org.spongepowered:mixingradle:0.7-SNAPSHOT"
-        classpath "com.github.johnrengelman:shadow:7.0.0"
-    }
-}
-
-apply plugin: "net.minecraftforge.gradle"
-apply plugin: "org.spongepowered.mixin"
-apply plugin: "com.github.johnrengelman.shadow"
-apply plugin: "java"
-
-version = "1.12.2-${mod_version}"
-group = "${mod_base_package}.${mod_id}"
-archivesBaseName = mod_id
-
-java.toolchain.languageVersion = JavaLanguageVersion.of(8)
-compileJava.options.encoding = "UTF-8"
-
-minecraft {
-    mappings channel: "stable", version: "39-1.12"
-
-    runs {
-        client {
-            workingDirectory project.file("run")
-
-            property 'forge.logging.markers', 'REGISTRIES'
-            property "forge.logging.console.level", "debug"
-
-            // mixin
-            property 'mixin.debug.export', 'true'
-            property "mixin.hotSwap", "true"
-            property "fml.coreMods.load", "de.florianmichael.viaforge.mixin.MixinLoader"
-
-            if (project.hasProperty('mc_uuid'))
-                args '--uuid', project.getProperty('mc_uuid')
-
-            if (project.hasProperty('mc_username'))
-                args '--username', project.getProperty('mc_username')
-
-            if (project.hasProperty('mc_accessToken'))
-                args '--accessToken', project.getProperty('mc_accessToken')
-
-            args '-mixin.config=' + 'mixins.' + project.getProperty('mod_id') + '.json'
-
-            mods {
-                "${mod_id}" {
-                    source sourceSets.main
-                }
-            }
-        }
-    }
-}
-
-sourceSets.main.resources {
-    srcDir "src/generated/resources"
-}
-
-repositories {
-    maven {
-        url = "https://repo.spongepowered.org/repository/maven-public"
-    }
-    maven {
-        url = "https://repo.viaversion.com"
-    }
-}
-
-configurations {
-    include
-    implementation.extendsFrom(include)
-}
-
-def viaLibs = [
-        "com.viaversion:viaversion:${project.viaversion_version}",
-        "com.viaversion:viabackwards:${project.viabackwards_version}",
-        "com.viaversion:viarewind-core:${project.viarewind_version}",
-        "org.yaml:snakeyaml:${project.snake_yml_version}",
-
-        "net.raphimc:ViaLoader:${project.vialoader_version}"
-]
-
-dependencies {
-    minecraft "net.minecraftforge:forge:1.12.2-14.23.5.2859"
-
-    include "org.spongepowered:mixin:${mixin_version}"
-
-    for (final def via in viaLibs) {
-        implementation(via)
-    }
-
-    annotationProcessor "org.spongepowered:mixin:${mixin_version}:processor"
-    annotationProcessor "org.spongepowered:mixin:${mixin_version}:processor"
-}
-
-mixin {
-    add sourceSets.main, "mixins.${mod_id}.refmap.json"
-}
-
-jar {
-    manifest.attributes(
-            "Specification-Title": "viaforge",
-            "Specification-Vendor": "viaforge",
-            "Specification-Version": "1",
-            "Implementation-Title": project.name,
-            "Implementation-Version": "${archiveVersion}",
-            "Implementation-Vendor" :"viaforge",
-            "Implementation-Timestamp": new Date().format("yyyy-MM-dd"-"HH:mm:ssZ"),
-            "TweakClass": "org.spongepowered.asm.launch.MixinTweaker",
-            "TweakOrder": "0",
-            "FMLCorePluginContainsFMLMod": "true",
-            "FMLCorePlugin": "de.florianmichael.viaforge.mixin.MixinLoader",
-            "MixinConfigs": "mixins.${mod_id}.json",
-            "ForceLoadAsMod": "true"
-    )
-    enabled = false
-}
-
-shadowJar {
-    archiveFileName = jar.archiveFileName
-    compileJava.options.encoding = "UTF-8"
-    exclude "native-binaries/*"
-
-    dependencies {
-        for (final def lib in viaLibs) {
-            include(dependency(lib))
-        }
-        include(dependency("org.spongepowered:mixin:${mixin_version}"))
-    }
-}
-
-reobf {
-    shadowJar {}
-}
-
-jar.dependsOn("shadowJar")

mc1122/src/main/java/de/florianmichael/viaforge/ViaForge.java

@@ -1,63 +0,0 @@
-/*
- * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
- * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package de.florianmichael.viaforge;
-
-import com.viaversion.viaversion.api.Via;
-import com.viaversion.viaversion.api.connection.UserConnection;
-import com.viaversion.viaversion.api.protocol.version.VersionProvider;
-import com.viaversion.viaversion.protocols.base.BaseVersionProvider;
-import net.minecraft.client.Minecraft;
-import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
-import net.raphimc.vialoader.ViaLoader;
-import net.raphimc.vialoader.impl.platform.ViaBackwardsPlatformImpl;
-import net.raphimc.vialoader.impl.platform.ViaRewindPlatformImpl;
-import net.raphimc.vialoader.impl.viaversion.VLLoader;
-import net.raphimc.vialoader.util.VersionEnum;
-
-@Mod(modid = "viaforge", name = "ViaForge", version = "3.3.2")
-public class ViaForge {
-    public final static VersionEnum NATIVE_VERSION = VersionEnum.r1_12_2;
-
-    public static VersionEnum targetVersion = VersionEnum.r1_12_2;
-
-    @Mod.EventHandler
-    public void init(FMLPreInitializationEvent event) {
-        ViaLoader.init(
-                null,
-                new VLLoader() {
-                    @Override
-                    public void load() {
-                        super.load();
-                        Via.getManager().getProviders().use(VersionProvider.class, new BaseVersionProvider() {
-                            @Override
-                            public int getClosestServerProtocol(UserConnection connection) throws Exception {
-                                if (connection.isClientSide() && !Minecraft.getMinecraft().isSingleplayer()) {
-                                    return targetVersion.getVersion();
-                                }
-                                return super.getClosestServerProtocol(connection);
-                            }
-                        });
-                    }
-                },
-                null,
-                null,
-                ViaBackwardsPlatformImpl::new, ViaRewindPlatformImpl::new
-        );
-    }
-}

mc1122/src/main/java/de/florianmichael/viaforge/gui/GuiProtocolSelector.java

@@ -1,108 +0,0 @@
-/*
- * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
- * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package de.florianmichael.viaforge.gui;
-
-import com.mojang.realmsclient.gui.ChatFormatting;
-import de.florianmichael.viaforge.ViaForge;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.gui.GuiButton;
-import net.minecraft.client.gui.GuiScreen;
-import net.minecraft.client.gui.GuiSlot;
-import net.raphimc.vialoader.util.VersionEnum;
-import org.lwjgl.opengl.GL11;
-
-import java.io.IOException;
-
-public class GuiProtocolSelector extends GuiScreen {
-
-    private final GuiScreen parent;
-    private SlotList list;
-
-    public GuiProtocolSelector(GuiScreen parent) {
-        this.parent = parent;
-    }
-
-    @Override
-    public void initGui() {
-        super.initGui();
-        buttonList.add(new GuiButton(1, width / 2 - 100, height - 27, 200, 20, "Back"));
-        list = new SlotList(mc, width, height, 32, height - 32, 10);
-    }
-
-    @Override
-    protected void actionPerformed(GuiButton p_actionPerformed_1_) throws IOException {
-        list.actionPerformed(p_actionPerformed_1_);
-
-        if (p_actionPerformed_1_.id == 1) mc.displayGuiScreen(parent);
-    }
-
-    @Override
-    public void handleMouseInput() throws IOException {
-        list.handleMouseInput();
-        super.handleMouseInput();
-    }
-
-    @Override
-    public void drawScreen(int p_drawScreen_1_, int p_drawScreen_2_, float p_drawScreen_3_) {
-        list.drawScreen(p_drawScreen_1_, p_drawScreen_2_, p_drawScreen_3_);
-
-        GL11.glPushMatrix();
-        GL11.glScalef(2.0F, 2.0F, 2.0F);
-        this.drawCenteredString(this.fontRenderer, ChatFormatting.GOLD + "ViaForge", this.width / 4, 6, 16777215);
-        GL11.glPopMatrix();
-
-        drawString(this.fontRenderer, "by https://github.com/FlorianMichael/ViaForge", 1, 1, -1);
-        drawString(this.fontRenderer, "Discord: EnZaXD#6257", 1, 11, -1);
-
-        super.drawScreen(p_drawScreen_1_, p_drawScreen_2_, p_drawScreen_3_);
-    }
-
-    class SlotList extends GuiSlot {
-
-        public SlotList(Minecraft p_i1052_1_, int p_i1052_2_, int p_i1052_3_, int p_i1052_4_, int p_i1052_5_, int p_i1052_6_) {
-            super(p_i1052_1_, p_i1052_2_, p_i1052_3_, p_i1052_4_, p_i1052_5_, p_i1052_6_);
-        }
-
-        @Override
-        protected int getSize() {
-            return VersionEnum.OFFICIAL_SUPPORTED_PROTOCOLS.size();
-        }
-
-        @Override
-        protected void elementClicked(int i, boolean b, int i1, int i2) {
-            ViaForge.targetVersion = VersionEnum.OFFICIAL_SUPPORTED_PROTOCOLS.get(i);
-        }
-
-        @Override
-        protected boolean isSelected(int i) {
-            return false;
-        }
-
-        @Override
-        protected void drawBackground() {
-            drawDefaultBackground();
-        }
-
-        @Override
-        protected void drawSlot(int i, int i1, int i2, int i3, int i4, int i5, float v) {
-            final VersionEnum version = VersionEnum.OFFICIAL_SUPPORTED_PROTOCOLS.get(i);
-
-            drawCenteredString(mc.fontRenderer,(ViaForge.targetVersion.getVersion() == version.getVersion() ? ChatFormatting.GREEN.toString() : ChatFormatting.DARK_RED.toString()) + version.getName(), width / 2, i2, -1);
-        }
-    }
-}

mc1122/src/main/resources/mcmod.info

@@ -1,16 +0,0 @@
-[
-  {
-    "modid": "viaforge",
-    "name": "ViaForge",
-    "description": "Client-side Implementation of ViaVersion for Forge",
-    "version": "1.0.0",
-    "mcversion": "[1.8,1.12.2]",
-    "url": "https://github.com/FlorianMichael/ViaForge",
-    "updateUrl": "",
-    "authorList": [],
-    "credits": "",
-    "logoFile": "",
-    "screenshots": [],
-    "dependencies": []
-  }
-]

mc1122/src/main/resources/mixins.viaforge.json

@@ -1,15 +0,0 @@
-{
-  "required": true,
-  "minVersion": "0.7.5",
-  "compatibilityLevel": "JAVA_8",
-  "package": "de.florianmichael.viaforge.mixin.impl",
-  "refmap": "mixins.viaforge.refmap.json",
-  "mixins": [
-    "MixinNetworkManager",
-    "MixinNetworkManager_5",
-    "MixinGuiMainMenu",
-    "MixinGuiMultiplayer",
-    "MixinGuiScreenServerList"
-  ],
-  "verbose": true
-}

settings.gradle

@@ -1,3 +1,12 @@
-rootProject.name = "ViaForge"
-include 'mc1122'
+plugins {
+    id "org.gradle.toolchains.foojay-resolver-convention" version "0.8.0"
+}
 
+rootProject.name = "ViaForge"
+
+include "viaforge-mc1122"
+include "viaforge-mc1165"
+include "viaforge-mc1171"
+include "viaforge-mc1182"
+include "viaforge-mc1194"
+include "viaforge-mc1204"

src/main/java/de/florianmichael/viaforge/common/ViaForgeCommon.java

@@ -0,0 +1,159 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common;
+
+import com.viaversion.viaversion.api.Via;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import com.viaversion.viaversion.connection.UserConnectionImpl;
+import com.viaversion.viaversion.protocol.ProtocolPipelineImpl;
+import de.florianmichael.viaforge.common.platform.VFPlatform;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.common.protocoltranslator.ViaForgeVLInjector;
+import de.florianmichael.viaforge.common.protocoltranslator.ViaForgeVLLoader;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.ViaForgeVLLegacyPipeline;
+import io.netty.channel.Channel;
+import io.netty.util.AttributeKey;
+import net.raphimc.vialoader.ViaLoader;
+import net.raphimc.vialoader.impl.platform.*;
+import net.raphimc.vialoader.netty.CompressionReorderEvent;
+
+import java.io.File;
+
+/**
+ * This class is used to manage the common code between the different ViaForge versions.
+ * It is used to inject the ViaVersion pipeline into the netty pipeline. It also manages the target version.
+ */
+public class ViaForgeCommon {
+
+    public static final AttributeKey<UserConnection> LOCAL_VIA_USER = AttributeKey.valueOf("local_via_user");
+    public static final AttributeKey<VFNetworkManager> VF_NETWORK_MANAGER = AttributeKey.valueOf("encryption_setup");
+
+    private static ViaForgeCommon manager;
+
+    private final VFPlatform platform;
+    private ProtocolVersion targetVersion;
+    private ProtocolVersion previousVersion;
+
+    private ViaForgeConfig config;
+
+    public ViaForgeCommon(VFPlatform platform) {
+        this.platform = platform;
+    }
+
+    /**
+     * Initializes the manager.
+     *
+     * @param platform the platform fields
+     */
+    public static void init(final VFPlatform platform) {
+        final ProtocolVersion version = ProtocolVersion.getProtocol(platform.getGameVersion()); // ViaForge will only load on post-netty versions
+        if (version == ProtocolVersion.unknown) {
+            throw new IllegalArgumentException("Unknown version " + platform.getGameVersion());
+        }
+
+        manager = new ViaForgeCommon(platform);
+
+        final File mainFolder = new File(platform.getLeadingDirectory(), "ViaForge");
+
+        ViaLoader.init(new ViaVersionPlatformImpl(mainFolder), new ViaForgeVLLoader(platform), new ViaForgeVLInjector(), null, ViaBackwardsPlatformImpl::new, ViaRewindPlatformImpl::new, ViaLegacyPlatformImpl::new, ViaAprilFoolsPlatformImpl::new);
+        manager.config = new ViaForgeConfig(new File(mainFolder, "viaforge.yml"), Via.getPlatform().getLogger());
+
+        final ProtocolVersion configVersion = ProtocolVersion.getClosest(manager.config.getClientSideVersion());
+        if (configVersion != null) {
+            manager.setTargetVersion(configVersion);
+        } else {
+            manager.setTargetVersion(version);
+        }
+    }
+
+    /**
+     * Injects the ViaVersion pipeline into the netty pipeline.
+     *
+     * @param channel the channel to inject the pipeline into
+     */
+    public void inject(final Channel channel, final VFNetworkManager networkManager) {
+        if (networkManager.viaForge$getTrackedVersion().equals(getNativeVersion())) {
+            return; // Don't inject ViaVersion into pipeline if there is nothing to translate anyway
+        }
+        channel.attr(VF_NETWORK_MANAGER).set(networkManager);
+
+        final UserConnection user = new UserConnectionImpl(channel, true);
+        new ProtocolPipelineImpl(user);
+
+        channel.attr(LOCAL_VIA_USER).set(user);
+
+        channel.pipeline().addLast(new ViaForgeVLLegacyPipeline(user, targetVersion));
+        channel.closeFuture().addListener(future -> {
+            if (previousVersion != null) {
+                restoreVersion();
+            }
+        });
+    }
+
+    /**
+     * Reorders the compression channel.
+     *
+     * @param channel the channel to reorder the compression for
+     */
+    public void reorderCompression(final Channel channel) {
+        // When Minecraft enables compression, we need to reorder the pipeline
+        // to match the counterparts of via-decoder <-> encoder and via-encoder <-> encoder
+        channel.pipeline().fireUserEventTriggered(CompressionReorderEvent.INSTANCE);
+    }
+
+    public ProtocolVersion getNativeVersion() {
+        return ProtocolVersion.getProtocol(platform.getGameVersion());
+    }
+
+    public ProtocolVersion getTargetVersion() {
+        return targetVersion;
+    }
+
+    public void restoreVersion() {
+        this.targetVersion = ProtocolVersion.getClosest(config.getClientSideVersion());
+    }
+
+    public void setTargetVersionSilent(final ProtocolVersion targetVersion) {
+        final ProtocolVersion oldVersion = this.targetVersion;
+        this.targetVersion = targetVersion;
+        if (oldVersion != targetVersion) {
+            previousVersion = oldVersion;
+        }
+    }
+
+    public void setTargetVersion(final ProtocolVersion targetVersion) {
+        this.targetVersion = targetVersion;
+        config.setClientSideVersion(targetVersion.getName());
+    }
+
+    public VFPlatform getPlatform() {
+        return platform;
+    }
+
+    public ViaForgeConfig getConfig() {
+        return config;
+    }
+
+    public static ViaForgeCommon getManager() {
+        return manager;
+    }
+
+}

src/main/java/de/florianmichael/viaforge/common/gui/ExtendedServerData.java

@@ -0,0 +1,32 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.gui;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+
+/**
+ * This interface is used to store the target version for a specific server in the server list.
+ */
+public interface ExtendedServerData {
+
+    ProtocolVersion viaForge$getVersion();
+
+    void viaForge$setVersion(final ProtocolVersion version);
+
+}

src/main/java/de/florianmichael/viaforge/common/platform/VFPlatform.java

@@ -0,0 +1,58 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.platform;
+
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.provider.GameProfileFetcher;
+
+import java.io.File;
+import java.util.function.Supplier;
+
+/**
+ * This interface is used to access platform-specific fields.
+ */
+public interface VFPlatform {
+
+    /**
+     * @return the native version of the platform
+     */
+    int getGameVersion();
+
+    /**
+     * @return if the client is in singleplayer
+     */
+    Supplier<Boolean> isSingleplayer();
+
+    /**
+     * @return the leading directory of the platform
+     */
+    File getLeadingDirectory();
+
+    /**
+     * Sends the joinServer API request to Mojang's authentication servers.
+     *
+     * @param serverId    the server id of the server
+     */
+    void joinServer(final String serverId) throws Throwable;
+
+    /**
+     * @return the game profile fetcher of the platform for ViaLegacy
+     */
+    GameProfileFetcher getGameProfileFetcher();
+
+}

src/main/java/de/florianmichael/viaforge/common/platform/VersionTracker.java

@@ -0,0 +1,44 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.platform;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+
+import java.net.InetAddress;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Dirty, but needed to store the server specific version until building the netty pipeline.
+ */
+public class VersionTracker {
+
+    public static final Map<InetAddress, ProtocolVersion> SERVER_PROTOCOL_VERSIONS = new HashMap<>();
+
+    public static void storeServerProtocolVersion(InetAddress address, ProtocolVersion version) {
+        SERVER_PROTOCOL_VERSIONS.put(address, version);
+        ViaForgeCommon.getManager().setTargetVersionSilent(version);
+    }
+
+    public static ProtocolVersion getServerProtocolVersion(InetAddress address) {
+        return SERVER_PROTOCOL_VERSIONS.remove(address);
+    }
+
+}

src/main/java/de/florianmichael/viaforge/common/platform/ViaForgeConfig.java

@@ -0,0 +1,148 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.platform;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import com.viaversion.viaversion.util.Config;
+import com.viaversion.viaversion.util.Pair;
+
+import java.io.File;
+import java.net.URL;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Logger;
+
+public class ViaForgeConfig extends Config {
+    
+    public static final String CLIENT_SIDE_VERSION = "client-side-version";
+    public static final String VERIFY_SESSION_IN_OLD_VERSIONS = "verify-session-in-old-versions";
+    public static final String ALLOW_BETACRAFT_AUTHENTICATION = "allow-betacraft-authentication";
+    public static final String SHOW_PROTOCOL_VERSION_IN_F3 = "show-protocol-version-in-f3";
+
+    public static final String SHOW_MAIN_MENU_BUTTON = "show-main-menu-button";
+    public static final String SHOW_MULTIPLAYER_BUTTON = "show-multiplayer-button";
+    public static final String SHOW_DIRECT_CONNECT_BUTTON = "show-direct-connect-button";
+    public static final String SHOW_ADD_SERVER_BUTTON = "show-add-server-button";
+
+    public static final String VIA_FORGE_BUTTON_POSITION = "via-forge-button-position";
+    public static final String ADD_SERVER_SCREEN_BUTTON_POSITION = "add-server-screen-button-position";
+
+    /**
+     * @param configFile The location of where the config is loaded/saved.
+     */
+    public ViaForgeConfig(File configFile, Logger logger) {
+        super(configFile, logger);
+        reload();
+    }
+
+    @Override
+    public URL getDefaultConfigURL() {
+        return getClass().getClassLoader().getResource("assets/viaforge/config.yml");
+    }
+
+    @Override
+    protected void handleConfig(Map<String, Object> config) {
+    }
+
+    @Override
+    public List<String> getUnsupportedOptions() {
+        return Collections.emptyList();
+    }
+
+    @Override
+    public void set(String path, Object value) {
+        super.set(path, value);
+        save(); // Automatically save the config when something changes
+    }
+
+    public String getClientSideVersion() {
+        if (getInt(CLIENT_SIDE_VERSION, -1) != -1) { // Temporary fix for old configs
+            return ProtocolVersion.getProtocol(getInt(CLIENT_SIDE_VERSION, -1)).getName();
+        }
+        return getString(CLIENT_SIDE_VERSION, "");
+    }
+
+    public void setClientSideVersion(final String version) {
+        set(CLIENT_SIDE_VERSION, version);
+    }
+
+    public boolean isVerifySessionInOldVersions() {
+        return getBoolean(VERIFY_SESSION_IN_OLD_VERSIONS, true);
+    }
+
+    public boolean isAllowBetacraftAuthentication() {
+        return getBoolean(ALLOW_BETACRAFT_AUTHENTICATION, true);
+    }
+
+    public boolean isShowProtocolVersionInF3() {
+        return getBoolean(SHOW_PROTOCOL_VERSION_IN_F3, true);
+    }
+
+    public boolean isShowMainMenuButton() {
+        return getBoolean(SHOW_MAIN_MENU_BUTTON, true);
+    }
+
+    public boolean isShowMultiplayerButton() {
+        return getBoolean(SHOW_MULTIPLAYER_BUTTON, true);
+    }
+
+    public boolean isShowDirectConnectButton() {
+        return getBoolean(SHOW_DIRECT_CONNECT_BUTTON, true);
+    }
+
+    public boolean isShowAddServerButton() {
+        return getBoolean(SHOW_ADD_SERVER_BUTTON, true);
+    }
+
+    public ButtonPosition getViaForgeButtonPosition() {
+        return ButtonPosition.valueOf(getString(VIA_FORGE_BUTTON_POSITION, ButtonPosition.TOP_LEFT.name()));
+    }
+
+    public ButtonPosition getAddServerScreenButtonPosition() {
+        return ButtonPosition.valueOf(getString(ADD_SERVER_SCREEN_BUTTON_POSITION, ButtonPosition.TOP_LEFT.name()));
+    }
+
+    public enum ButtonPosition {
+        // Button width: 100
+        // Button height: 20
+        // Button margin for both coordinates: 5
+        TOP_LEFT((width, height) -> new Pair<>(5, 5)),
+        TOP_RIGHT((width, height) -> new Pair<>(width - 100 - 5, 5)),
+        BOTTOM_LEFT((width, height) -> new Pair<>(5, height - 20 - 5)),
+        BOTTOM_RIGHT((width, height) -> new Pair<>(width - 100 - 5, height - 20 - 5));
+
+        private final PositionInvoker invoker;
+
+        ButtonPosition(final PositionInvoker invoker) {
+            this.invoker = invoker;
+        }
+
+        public Pair<Integer, Integer> getPosition(int width, int height) {
+            return invoker.invoke(width, height);
+        }
+
+        public interface PositionInvoker {
+
+            Pair<Integer, Integer> invoke(int width, int height);
+            
+        }
+    }
+    
+}

src/main/java/de/florianmichael/viaforge/common/protocoltranslator/ViaForgeVLInjector.java

@@ -0,0 +1,36 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.protocoltranslator;
+
+import net.raphimc.vialoader.impl.viaversion.VLInjector;
+import net.raphimc.vialoader.netty.VLLegacyPipeline;
+
+public class ViaForgeVLInjector extends VLInjector {
+
+    @Override
+    public String getDecoderName() {
+        return VLLegacyPipeline.VIA_DECODER_NAME;
+    }
+
+    @Override
+    public String getEncoderName() {
+        return VLLegacyPipeline.VIA_ENCODER_NAME;
+    }
+
+}

src/main/java/de/florianmichael/viaforge/common/protocoltranslator/ViaForgeVLLoader.java

@@ -0,0 +1,55 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.protocoltranslator;
+
+import com.viaversion.viaversion.api.Via;
+import com.viaversion.viaversion.api.platform.providers.ViaProviders;
+import com.viaversion.viaversion.api.protocol.version.VersionProvider;
+import com.viaversion.viaversion.protocols.v1_8to1_9.provider.MovementTransmitterProvider;
+import de.florianmichael.viaforge.common.platform.VFPlatform;
+import de.florianmichael.viaforge.common.protocoltranslator.provider.*;
+import net.raphimc.vialegacy.protocol.classic.c0_28_30toa1_0_15.provider.ClassicMPPassProvider;
+import net.raphimc.vialegacy.protocol.release.r1_2_4_5tor1_3_1_2.provider.OldAuthProvider;
+import net.raphimc.vialegacy.protocol.release.r1_6_4tor1_7_2_5.provider.EncryptionProvider;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.provider.GameProfileFetcher;
+import net.raphimc.vialoader.impl.viaversion.VLLoader;
+
+public class ViaForgeVLLoader extends VLLoader {
+
+    private final VFPlatform platform;
+
+    public ViaForgeVLLoader(VFPlatform platform) {
+        this.platform = platform;
+    }
+
+    @Override
+    public void load() {
+        super.load();
+
+        final ViaProviders providers = Via.getManager().getProviders();
+
+        providers.use(VersionProvider.class, new ViaForgeVersionProvider());
+        providers.use(MovementTransmitterProvider.class, new ViaForgeMovementTransmitterProvider());
+        providers.use(OldAuthProvider.class, new ViaForgeOldAuthProvider());
+        providers.use(GameProfileFetcher.class, platform.getGameProfileFetcher());
+        providers.use(EncryptionProvider.class, new ViaForgeEncryptionProvider());
+        providers.use(ClassicMPPassProvider.class, new ViaForgeClassicMPPassProvider());
+    }
+
+}

src/main/java/de/florianmichael/viaforge/common/protocoltranslator/netty/VFNetworkManager.java

@@ -0,0 +1,43 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.protocoltranslator.netty;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+
+public interface VFNetworkManager {
+
+    /**
+     * API method to setup the decryption side of the pipeline.
+     * This method is called by the {@link de.florianmichael.viaforge.common.protocoltranslator.provider.ViaForgeEncryptionProvider} class.
+     */
+    void viaForge$setupPreNettyDecryption();
+
+    /**
+     * @return the target version of the connection
+     */
+    ProtocolVersion viaForge$getTrackedVersion();
+
+    /**
+     * Sets the target version of the connection.
+     *
+     * @param version the target version
+     */
+    void viaForge$setTrackedVersion(final ProtocolVersion version);
+
+}

src/main/java/de/florianmichael/viaforge/common/protocoltranslator/netty/ViaForgeVLLegacyPipeline.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
- * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,15 +15,16 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package de.florianmichael.viaforge;
+
+package de.florianmichael.viaforge.common.protocoltranslator.netty;
 
 import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
 import net.raphimc.vialoader.netty.VLLegacyPipeline;
-import net.raphimc.vialoader.util.VersionEnum;
 
 public class ViaForgeVLLegacyPipeline extends VLLegacyPipeline {
 
-    public ViaForgeVLLegacyPipeline(UserConnection user, VersionEnum version) {
+    public ViaForgeVLLegacyPipeline(UserConnection user, ProtocolVersion version) {
         super(user, version);
     }
 
@@ -56,4 +57,5 @@ public class ViaForgeVLLegacyPipeline extends VLLegacyPipeline {
     protected String lengthPrependerName() {
         return "prepender";
     }
+
 }

src/main/java/de/florianmichael/viaforge/common/protocoltranslator/provider/ViaForgeClassicMPPassProvider.java

@@ -0,0 +1,88 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.protocoltranslator.provider;
+
+import com.viaversion.viaversion.api.Via;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.raphimc.vialegacy.protocol.classic.c0_28_30toa1_0_15.provider.ClassicMPPassProvider;
+import net.raphimc.vialegacy.protocol.release.r1_2_4_5tor1_3_1_2.provider.OldAuthProvider;
+import net.raphimc.vialegacy.protocol.release.r1_6_4tor1_7_2_5.storage.HandshakeStorage;
+
+import java.io.InputStream;
+import java.net.InetAddress;
+import java.net.URL;
+import java.security.MessageDigest;
+import java.util.Formatter;
+import java.util.Scanner;
+import java.util.logging.Level;
+
+public class ViaForgeClassicMPPassProvider extends ClassicMPPassProvider {
+
+    @Override
+    public String getMpPass(UserConnection user) {
+        if (ViaForgeCommon.getManager().getConfig().isAllowBetacraftAuthentication()) {
+            final HandshakeStorage handshakeStorage = user.get(HandshakeStorage.class);
+
+            return getBetacraftMpPass(user, user.getProtocolInfo().getUsername(), handshakeStorage.getHostname(), handshakeStorage.getPort());
+        }
+        return super.getMpPass(user);
+    }
+
+    /*
+    Stolen from https://github.com/FlorianMichael/Classic4J/blob/main/src/main/java/de/florianmichael/classic4j/BetaCraftHandler.java :tm:
+     */
+
+    private static String getBetacraftMpPass(final UserConnection user, final String username, final String ip, final int port) {
+        try {
+            final String server = InetAddress.getByName(ip).getHostAddress() + ":" + port;
+
+            Via.getManager().getProviders().get(OldAuthProvider.class).sendAuthRequest(user, sha1(server.getBytes()));
+
+            final InputStream connection = new URL("https://api.betacraft.uk/getmppass.jsp?user=" + username + "&server=" + server).openStream();
+            Scanner scanner = new Scanner(connection);
+            StringBuilder response = new StringBuilder();
+            while (scanner.hasNext()) {
+                response.append(scanner.next());
+            }
+            connection.close();
+
+            if (response.toString().contains("FAILED") || response.toString().contains("SERVER NOT FOUND")) return "0";
+
+            return response.toString();
+        } catch (Throwable t) {
+            Via.getPlatform().getLogger().log(Level.WARNING, "An unknown error occurred while authenticating with BetaCraft", t);
+            return "0";
+        }
+    }
+
+    private static String sha1(final byte[] input) {
+        try {
+            Formatter formatter = new Formatter();
+            final byte[] hash = MessageDigest.getInstance("SHA-1").digest(input);
+            for (byte b : hash) {
+                formatter.format("%02x", b);
+            }
+            return formatter.toString();
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+}

src/main/java/de/florianmichael/viaforge/common/protocoltranslator/provider/ViaForgeEncryptionProvider.java

@@ -0,0 +1,32 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.protocoltranslator.provider;
+
+import com.viaversion.viaversion.api.connection.UserConnection;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.raphimc.vialegacy.protocol.release.r1_6_4tor1_7_2_5.provider.EncryptionProvider;
+
+public class ViaForgeEncryptionProvider extends EncryptionProvider {
+
+    @Override
+    public void enableDecryption(UserConnection user) {
+        user.getChannel().attr(ViaForgeCommon.VF_NETWORK_MANAGER).getAndRemove().viaForge$setupPreNettyDecryption();
+    }
+
+}

src/main/java/de/florianmichael/viaforge/common/protocoltranslator/provider/ViaForgeMovementTransmitterProvider.java

@@ -0,0 +1,31 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.protocoltranslator.provider;
+
+import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.protocols.v1_8to1_9.provider.MovementTransmitterProvider;
+
+public class ViaForgeMovementTransmitterProvider extends MovementTransmitterProvider {
+
+    @Override
+    public void sendPlayer(UserConnection userConnection) {
+        // We are on the client side, so we can handle the idle packet properly
+    }
+
+}

src/main/java/de/florianmichael/viaforge/common/protocoltranslator/provider/ViaForgeOldAuthProvider.java

@@ -0,0 +1,36 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.protocoltranslator.provider;
+
+import com.viaversion.viaversion.api.connection.UserConnection;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.raphimc.vialegacy.protocol.release.r1_2_4_5tor1_3_1_2.provider.OldAuthProvider;
+
+public class ViaForgeOldAuthProvider extends OldAuthProvider {
+
+    @Override
+    public void sendAuthRequest(UserConnection user, String serverId) throws Throwable {
+        final ViaForgeCommon common = ViaForgeCommon.getManager();
+        if (!common.getConfig().isVerifySessionInOldVersions()) {
+            return;
+        }
+        common.getPlatform().joinServer(serverId);
+    }
+
+}

src/main/java/de/florianmichael/viaforge/common/protocoltranslator/provider/ViaForgeVersionProvider.java

@@ -0,0 +1,36 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.common.protocoltranslator.provider;
+
+import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import com.viaversion.viaversion.protocol.version.BaseVersionProvider;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+
+public class ViaForgeVersionProvider extends BaseVersionProvider {
+
+    @Override
+    public ProtocolVersion getClosestServerProtocol(UserConnection connection) throws Exception {
+        if (connection.isClientSide() && !ViaForgeCommon.getManager().getPlatform().isSingleplayer().get()) {
+            return connection.getChannel().attr(ViaForgeCommon.VF_NETWORK_MANAGER).get().viaForge$getTrackedVersion();
+        }
+        return super.getClosestServerProtocol(connection);
+    }
+
+}

src/main/resources/assets/viaforge/config.yml

@@ -0,0 +1,46 @@
+# Thanks for downloading ViaForge!
+# If you need help, you can join our Discord - https://viaversion.com/discord
+#
+# Disclaimer:
+# It cannot be guaranteed that this mod is allowed on specific servers as it can possibly cause problems with anti-cheat plugins
+# (USE ONLY WITH CAUTION!)
+#
+#----------------------------------------------------------#
+#                     GLOBAL OPTIONS                       #
+#----------------------------------------------------------#
+#
+# This option sets the protocol version to be used when connecting to servers. (can also be changed in-game)
+client-side-version: -1
+#
+# Manually sends the joinServer request when connecting to <= 1.2.5 servers.
+verify-session-in-old-versions: true
+#
+# Allow ViaForge to authenticate with BetaCraft's MP-Pass system for <= c0.30 servers.
+allow-betacraft-authentication: true
+#
+# If enabled, ViaForge will show the current protocol version in the F3 menu.
+show-protocol-version-in-f3: true
+#
+#----------------------------------------------------------#
+#                       GUI OPTIONS                        #
+#----------------------------------------------------------#
+#
+# This option indicates if the ViaForge button should be shown in the main menu.
+show-main-menu-button: true
+#
+# This option indicates if the ViaForge button should be shown in the multiplayer.
+show-multiplayer-button: true
+#
+# This option indicates if the ViaForge button should be shown in the direct connect screen.
+show-direct-connect-button: true
+#
+# This option indicates if the ViaForge set version button should be shown in the server list.
+show-add-server-button: true
+#
+# This option indicates where the ViaForge button should be located in all screens.
+# Possible options: TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT
+via-forge-button-position: "TOP_LEFT"
+#
+# This option indicates where the ViaForge set version button should be located in the add server screen.
+# Possible options: TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT
+add-server-screen-button-position: "TOP_LEFT"

viaforge-mc1122/build.gradle

@@ -0,0 +1,7 @@
+minecraft {
+    mappings channel: "stable", version: "39-1.12"
+}
+
+dependencies {
+    minecraft "net.minecraftforge:forge:1.12.2-14.23.5.2859"
+}

viaforge-mc1122/gradle.properties

@@ -0,0 +1,2 @@
+maven_name=viaforge-mc1122
+mc_version=1.12.2

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/ViaForge1122.java

@@ -0,0 +1,69 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.VFPlatform;
+import de.florianmichael.viaforge.provider.ViaForgeGameProfileFetcher;
+import net.minecraft.client.Minecraft;
+import net.minecraft.realms.RealmsSharedConstants;
+import net.minecraft.util.Session;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.common.event.FMLInitializationEvent;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.provider.GameProfileFetcher;
+
+import java.io.File;
+import java.util.function.Supplier;
+
+@Mod(modid = "viaforge", name = "ViaForge", acceptableRemoteVersions = "*", clientSideOnly=true, useMetadata=true)
+public class ViaForge1122 implements VFPlatform {
+
+    @Mod.EventHandler
+    public void onInit(FMLInitializationEvent event) {
+        ViaForgeCommon.init(this);
+    }
+
+    @Override
+    public int getGameVersion() {
+        return RealmsSharedConstants.NETWORK_PROTOCOL_VERSION;
+    }
+
+    @Override
+    public Supplier<Boolean> isSingleplayer() {
+        return () -> Minecraft.getMinecraft().isSingleplayer();
+    }
+
+    @Override
+    public File getLeadingDirectory() {
+        return Minecraft.getMinecraft().gameDir;
+    }
+
+    @Override
+    public void joinServer(String serverId) throws Throwable {
+        final Session session = Minecraft.getMinecraft().getSession();
+
+        Minecraft.getMinecraft().getSessionService().joinServer(session.getProfile(), session.getToken(), serverId);
+    }
+
+    @Override
+    public GameProfileFetcher getGameProfileFetcher() {
+        return new ViaForgeGameProfileFetcher();
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/gui/GuiProtocolSelector.java

@@ -0,0 +1,176 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.gui;
+
+import com.mojang.realmsclient.gui.ChatFormatting;
+import com.viaversion.viaversion.api.Via;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import com.viaversion.viaversion.util.DumpUtil;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiButton;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.client.gui.GuiSlot;
+import net.raphimc.vialoader.util.ProtocolVersionList;
+import org.lwjgl.input.Keyboard;
+import org.lwjgl.opengl.GL11;
+
+import java.io.IOException;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+
+public class GuiProtocolSelector extends GuiScreen {
+
+    private final GuiScreen parent;
+    private final boolean simple;
+    private final FinishedCallback finishedCallback;
+
+    private SlotList list;
+
+    private String status;
+    private long time;
+
+    public GuiProtocolSelector(final GuiScreen parent) {
+        this(parent, false, (version, unused) -> {
+            // Default action is to set the target version and go back to the parent screen.
+            ViaForgeCommon.getManager().setTargetVersion(version);
+        });
+    }
+
+    public GuiProtocolSelector(final GuiScreen parent, final boolean simple, final FinishedCallback finishedCallback) {
+        this.parent = parent;
+        this.simple = simple;
+        this.finishedCallback = finishedCallback;
+    }
+
+    @Override
+    public void initGui() {
+        super.initGui();
+        buttonList.add(new GuiButton(1, 5, height - 25, 20, 20, "<-"));
+        if (!this.simple) {
+            buttonList.add(new GuiButton(2, width - 105, 5, 100, 20, "Create dump"));
+            buttonList.add(new GuiButton(3, width - 105, height - 25, 100, 20, "Reload configs"));
+        }
+
+        list = new SlotList(mc, width, height, 3 + 3 /* start offset */ + (fontRenderer.FONT_HEIGHT + 2) * 3 /* title is 2 */, height - 30, fontRenderer.FONT_HEIGHT + 2);
+    }
+
+    public void setStatus(final String status) {
+        this.status = status;
+        this.time = System.currentTimeMillis();
+    }
+
+    @Override
+    protected void actionPerformed(GuiButton button) {
+        list.actionPerformed(button);
+
+        if (button.id == 1) {
+            mc.displayGuiScreen(parent);
+        } else if (button.id == 2) {
+            try {
+                GuiScreen.setClipboardString(DumpUtil.postDump(UUID.randomUUID()).get());
+                setStatus(ChatFormatting.GREEN + "Dump created and copied to clipboard");
+            } catch (InterruptedException | ExecutionException e) {
+                setStatus(ChatFormatting.RED + "Failed to create dump: " + e.getMessage());
+            }
+        } else {
+            Via.getManager().getConfigurationProvider().reloadConfigs();
+        }
+    }
+
+    @Override
+    protected void keyTyped(char typedChar, int keyCode) {
+        if (keyCode == Keyboard.KEY_ESCAPE) {
+            mc.displayGuiScreen(parent);
+        }
+    }
+
+    @Override
+    public void handleMouseInput() throws IOException {
+        list.handleMouseInput();
+        super.handleMouseInput();
+    }
+
+    @Override
+    public void drawScreen(int mouseX, int mouseY, float partialTicks) {
+        if (System.currentTimeMillis() - this.time >= 10_000) {
+            this.status = null;
+        }
+
+        list.drawScreen(mouseX, mouseY, partialTicks);
+
+        GL11.glPushMatrix();
+        GL11.glScalef(2.0F, 2.0F, 2.0F);
+        drawCenteredString(fontRenderer, ChatFormatting.GOLD + "ViaForge", width / 4, 3, 16777215);
+        GL11.glPopMatrix();
+
+        drawCenteredString(fontRenderer, "https://github.com/ViaVersion/ViaForge", width / 2, (fontRenderer.FONT_HEIGHT + 2) * 2 + 3, -1);
+        drawString(fontRenderer, status != null ? status : "Discord: florianmichael", 3, 3, -1);
+
+        super.drawScreen(mouseX, mouseY, partialTicks);
+    }
+
+    class SlotList extends GuiSlot {
+
+        public SlotList(Minecraft client, int width, int height, int top, int bottom, int slotHeight) {
+            super(client, width, height, top, bottom, slotHeight);
+        }
+
+        @Override
+        protected int getSize() {
+            return ProtocolVersionList.getProtocolsNewToOld().size();
+        }
+
+        @Override
+        protected void elementClicked(int index, boolean b, int i1, int i2) {
+            finishedCallback.finished(ProtocolVersionList.getProtocolsNewToOld().get(index), parent);
+        }
+
+        @Override
+        protected boolean isSelected(int index) {
+            return false;
+        }
+
+        @Override
+        protected void drawBackground() {
+            drawDefaultBackground();
+        }
+
+        @Override
+        protected void drawSlot(int index, int x, int y, int slotHeight, int mouseX, int mouseY, float partialTicks) {
+            final ProtocolVersion targetVersion = ViaForgeCommon.getManager().getTargetVersion();
+            final ProtocolVersion version = ProtocolVersionList.getProtocolsNewToOld().get(index);
+
+            String color;
+            if (targetVersion == version) {
+                color = GuiProtocolSelector.this.simple ? ChatFormatting.GOLD.toString() : ChatFormatting.GREEN.toString();
+            } else {
+                color = GuiProtocolSelector.this.simple ? ChatFormatting.WHITE.toString() : ChatFormatting.DARK_RED.toString();
+            }
+
+            drawCenteredString(mc.fontRenderer,(color) + version.getName(), width / 2, y, -1);
+        }
+    }
+
+    public interface FinishedCallback {
+
+        void finished(final ProtocolVersion version, final GuiScreen parent);
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/MixinLoader.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
- * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,6 +15,7 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 package de.florianmichael.viaforge.mixin;
 
 import net.minecraftforge.fml.relauncher.IFMLLoadingPlugin;
@@ -27,9 +28,8 @@ import java.util.Map;
 public class MixinLoader implements IFMLLoadingPlugin {
 
     public MixinLoader() {
-        System.out.println("Starting MixinBootstrap from IFMLLoadingPlugin");
         MixinBootstrap.init();
-        Mixins.addConfiguration("mixins.viaforge.json");
+        Mixins.addConfiguration("mixins.viaforge-mc1122.json");
         MixinEnvironment.getDefaultEnvironment().setSide(MixinEnvironment.Side.CLIENT);
     }
 
@@ -49,10 +49,12 @@ public class MixinLoader implements IFMLLoadingPlugin {
     }
 
     @Override
-    public void injectData(Map<String, Object> data) { }
+    public void injectData(Map<String, Object> data) {
+    }
 
     @Override
     public String getAccessTransformerClass() {
         return null;
     }
+
 }

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/MixinGuiMainMenu.java

@@ -0,0 +1,55 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.impl;
+
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.GuiButton;
+import net.minecraft.client.gui.GuiMainMenu;
+import net.minecraft.client.gui.GuiScreen;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(GuiMainMenu.class)
+public class MixinGuiMainMenu extends GuiScreen {
+
+    @Inject(method = "initGui", at = @At("RETURN"))
+    public void hookViaForgeButton(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+        if (config.isShowMainMenuButton()) {
+            final Pair<Integer, Integer> pos = config.getViaForgeButtonPosition().getPosition(this.width, this.height);
+
+            buttonList.add(new GuiButton(1_000_000_000, pos.key(), pos.value(), 100, 20, "ViaForge"));
+        }
+    }
+
+    @Inject(method = "actionPerformed", at = @At("RETURN"))
+    public void handleViaForgeButtonClicking(GuiButton p_actionPerformed_1_, CallbackInfo ci) {
+        if (ViaForgeCommon.getManager().getConfig().isShowMainMenuButton()) {
+            if (p_actionPerformed_1_.id == 1_000_000_000) {
+                mc.displayGuiScreen(new GuiProtocolSelector(this));
+            }
+        }
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/MixinGuiMultiplayer.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
- * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,8 +15,12 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 package de.florianmichael.viaforge.mixin.impl;
 
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
 import de.florianmichael.viaforge.gui.GuiProtocolSelector;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiMultiplayer;
@@ -30,14 +34,22 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 public class MixinGuiMultiplayer extends GuiScreen {
 
     @Inject(method = "initGui", at = @At("RETURN"))
-    public void hookCustomButton(CallbackInfo ci) {
-        buttonList.add(new GuiButton(1337, 5, 6, 98, 20, "ViaForge"));
+    public void hookViaForgeButton(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+        if (config.isShowMultiplayerButton()) {
+            final Pair<Integer, Integer> pos = config.getViaForgeButtonPosition().getPosition(this.width, this.height);
+
+            buttonList.add(new GuiButton(1_000_000_000, pos.key(), pos.value(), 100, 20, "ViaForge"));
+        }
     }
 
     @Inject(method = "actionPerformed", at = @At("RETURN"))
-    public void handleCustomButtonAction(GuiButton p_actionPerformed_1_, CallbackInfo ci) {
-        if (p_actionPerformed_1_.id == 1337) {
-            mc.displayGuiScreen(new GuiProtocolSelector(this));
+    public void handleViaForgeButtonClicking(GuiButton p_actionPerformed_1_, CallbackInfo ci) {
+        if (ViaForgeCommon.getManager().getConfig().isShowMultiplayerButton()) {
+            if (p_actionPerformed_1_.id == 1_000_000_000) {
+                mc.displayGuiScreen(new GuiProtocolSelector(this));
+            }
         }
     }
+
 }

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/MixinGuiOverlayDebug.java

@@ -0,0 +1,45 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.impl;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.minecraft.client.gui.GuiOverlayDebug;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.util.List;
+
+@Mixin(GuiOverlayDebug.class)
+public class MixinGuiOverlayDebug {
+
+    @Inject(method = "getDebugInfoRight", at = @At(value = "TAIL"))
+    public void addViaForgeVersion(CallbackInfoReturnable<List<String>> cir) {
+        final ViaForgeCommon common = ViaForgeCommon.getManager();
+        final ProtocolVersion version = ViaForgeCommon.getManager().getTargetVersion();
+
+        if (common.getConfig().isShowProtocolVersionInF3() && version != common.getNativeVersion() && !common.getPlatform().isSingleplayer().get()) {
+            cir.getReturnValue().add("");
+            cir.getReturnValue().add("ViaForge: " + version.toString());
+        }
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/MixinGuiScreenAddServer.java

@@ -0,0 +1,68 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.impl;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.GuiButton;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.client.gui.GuiScreenAddServer;
+import net.minecraft.client.multiplayer.ServerData;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(GuiScreenAddServer.class)
+public class MixinGuiScreenAddServer extends GuiScreen {
+
+    @Shadow @Final private ServerData serverData;
+
+    @Inject(method = "initGui", at = @At("RETURN"))
+    public void initGui(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+
+        if (config.isShowAddServerButton()) {
+            final Pair<Integer, Integer> pos = config.getAddServerScreenButtonPosition().getPosition(this.width, this.height);
+
+            final ProtocolVersion target = ((ExtendedServerData) serverData).viaForge$getVersion();
+            buttonList.add(new GuiButton(1_000_000_000, pos.key(), pos.value(), 100, 20, target != null ? target.getName() : "Set Version"));
+        }
+    }
+
+    @Inject(method = "actionPerformed", at = @At("HEAD"))
+    public void actionPerformed(GuiButton button, CallbackInfo ci) {
+        if (ViaForgeCommon.getManager().getConfig().isShowAddServerButton()) {
+            if (button.id == 1_000_000_000) {
+                mc.displayGuiScreen(new GuiProtocolSelector(this, true, (version, parent) -> {
+                    // Set version and go back to the parent screen.
+                    ((ExtendedServerData) serverData).viaForge$setVersion(version);
+                    mc.displayGuiScreen(parent);
+                }));
+            }
+        }
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/MixinGuiScreenServerList.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
- * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,8 +15,12 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 package de.florianmichael.viaforge.mixin.impl;
 
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
 import de.florianmichael.viaforge.gui.GuiProtocolSelector;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiScreen;
@@ -30,14 +34,22 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 public class MixinGuiScreenServerList extends GuiScreen {
 
     @Inject(method = "initGui", at = @At("RETURN"))
-    public void hookCustomButton(CallbackInfo ci) {
-        buttonList.add(new GuiButton(1337, 5, 6, 98, 20, "ViaForge"));
+    public void hookViaForgeButton(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+        if (config.isShowDirectConnectButton()) {
+            final Pair<Integer, Integer> pos = config.getViaForgeButtonPosition().getPosition(this.width, this.height);
+
+            buttonList.add(new GuiButton(1_000_000_000, pos.key(), pos.value(), 100, 20, "ViaForge"));
+        }
     }
 
     @Inject(method = "actionPerformed", at = @At("RETURN"))
-    public void handleCustomButtonAction(GuiButton p_actionPerformed_1_, CallbackInfo ci) {
-        if (p_actionPerformed_1_.id == 1337) {
-            mc.displayGuiScreen(new GuiProtocolSelector(this));
+    public void handleViaForgeButtonClicking(GuiButton p_actionPerformed_1_, CallbackInfo ci) {
+        if (ViaForgeCommon.getManager().getConfig().isShowDirectConnectButton()) {
+            if (p_actionPerformed_1_.id == 1_000_000_000) {
+                mc.displayGuiScreen(new GuiProtocolSelector(this));
+            }
         }
     }
+
 }

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/MixinServerData.java

@@ -0,0 +1,70 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.impl;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.nbt.NBTTagCompound;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+@Mixin(ServerData.class)
+public class MixinServerData implements ExtendedServerData {
+
+    @Unique
+    private ProtocolVersion viaForge$version;
+
+    @Inject(method = "getNBTCompound", at = @At(value = "INVOKE", target = "Lnet/minecraft/nbt/NBTTagCompound;setString(Ljava/lang/String;Ljava/lang/String;)V", ordinal = 0), locals = LocalCapture.CAPTURE_FAILHARD)
+    public void saveVersion(CallbackInfoReturnable<NBTTagCompound> cir, NBTTagCompound nbttagcompound) {
+        if (viaForge$version != null) {
+            nbttagcompound.setString("viaForge$version", viaForge$version.getName());
+        }
+    }
+
+    @Inject(method = "getServerDataFromNBTCompound", at = @At(value = "TAIL"))
+    private static void getVersion(NBTTagCompound nbtCompound, CallbackInfoReturnable<ServerData> cir) {
+        if (nbtCompound.hasKey("viaForge$version")) {
+            ((ExtendedServerData) cir.getReturnValue()).viaForge$setVersion(ProtocolVersion.getClosest(nbtCompound.getString("viaForge$version")));
+        }
+    }
+
+    @Inject(method = "copyFrom", at = @At("HEAD"))
+    public void track(ServerData serverDataIn, CallbackInfo ci) {
+        if (serverDataIn instanceof ExtendedServerData) {
+            viaForge$version = ((ExtendedServerData) serverDataIn).viaForge$getVersion();
+        }
+    }
+
+    @Override
+    public ProtocolVersion viaForge$getVersion() {
+        return viaForge$version;
+    }
+
+    @Override
+    public void viaForge$setVersion(ProtocolVersion version) {
+        viaForge$version = version;
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/connect/MixinGuiConnecting_1.java

@@ -0,0 +1,47 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.impl.connect;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import de.florianmichael.viaforge.common.platform.VersionTracker;
+import net.minecraft.client.Minecraft;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+@Mixin(targets = "net.minecraft.client.multiplayer.GuiConnecting$1")
+public class MixinGuiConnecting_1 {
+
+    @Redirect(method = "run", at = @At(value = "INVOKE", target = "Ljava/net/InetAddress;getByName(Ljava/lang/String;)Ljava/net/InetAddress;"))
+    public InetAddress trackServerVersion(String s) throws UnknownHostException {
+        final InetAddress address = InetAddress.getByName(s);
+        ProtocolVersion version = ((ExtendedServerData) Minecraft.getMinecraft().getCurrentServerData()).viaForge$getVersion();
+        if (version == null) {
+            version = ViaForgeCommon.getManager().getTargetVersion();
+        }
+        VersionTracker.storeServerProtocolVersion(address, version);
+        return address;
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/connect/MixinNetHandlerLoginClient.java

@@ -0,0 +1,58 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.impl.connect;
+
+import com.mojang.authlib.GameProfile;
+import com.mojang.authlib.exceptions.AuthenticationException;
+import com.mojang.authlib.minecraft.MinecraftSessionService;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
+import net.minecraft.client.network.NetHandlerLoginClient;
+import net.minecraft.network.NetworkManager;
+import net.raphimc.vialegacy.api.LegacyProtocolVersion;
+import net.raphimc.vialegacy.protocol.release.r1_6_4tor1_7_2_5.storage.ProtocolMetadataStorage;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@SuppressWarnings("DataFlowIssue")
+@Mixin(NetHandlerLoginClient.class)
+public class MixinNetHandlerLoginClient {
+
+    @Shadow @Final private NetworkManager networkManager;
+
+    @Redirect(method = "handleEncryptionRequest", at = @At(value = "INVOKE", target = "Lcom/mojang/authlib/minecraft/MinecraftSessionService;joinServer(Lcom/mojang/authlib/GameProfile;Ljava/lang/String;Ljava/lang/String;)V"))
+    public void onlyJoinServerIfPremium(MinecraftSessionService instance, GameProfile profile, String authenticationToken, String serverId) throws AuthenticationException {
+        final VFNetworkManager mixinNetworkManager = (VFNetworkManager) networkManager;
+        if (mixinNetworkManager.viaForge$getTrackedVersion().olderThanOrEqualTo(LegacyProtocolVersion.r1_6_4)) {
+            final UserConnection user = networkManager.channel().attr(ViaForgeCommon.LOCAL_VIA_USER).get();
+            if (user != null && user.has(ProtocolMetadataStorage.class) && !user.get(ProtocolMetadataStorage.class).authenticate) {
+                // We are in the 1.7 -> 1.6 protocol, so we need to skip the joinServer call
+                // if the server is in offline mode, due the packet changes <-> networking changes
+                // Minecraft's networking code is bad for us.
+                return;
+            }
+        }
+        instance.joinServer(profile, authenticationToken, serverId);
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/connect/MixinNetworkManager.java

@@ -0,0 +1,102 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.impl.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.VersionTracker;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
+import io.netty.channel.Channel;
+import net.minecraft.network.NettyEncryptingDecoder;
+import net.minecraft.network.NettyEncryptingEncoder;
+import net.minecraft.network.NetworkManager;
+import net.minecraft.util.CryptManager;
+import net.minecraft.util.LazyLoadBase;
+import net.raphimc.vialegacy.api.LegacyProtocolVersion;
+import net.raphimc.vialoader.netty.VLLegacyPipeline;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+import javax.crypto.Cipher;
+import javax.crypto.SecretKey;
+import java.net.InetAddress;
+
+@Mixin(NetworkManager.class)
+public class MixinNetworkManager implements VFNetworkManager {
+
+    @Shadow private Channel channel;
+
+    @Shadow private boolean isEncrypted;
+    @Unique
+    private Cipher viaForge$decryptionCipher;
+
+    @Unique
+    private ProtocolVersion viaForge$targetVersion;
+
+    @Inject(method = "setCompressionThreshold", at = @At("RETURN"))
+    public void reorderPipeline(int p_setCompressionTreshold_1_, CallbackInfo ci) {
+        ViaForgeCommon.getManager().reorderCompression(channel);
+    }
+
+    @Inject(method = "enableEncryption", at = @At("HEAD"), cancellable = true)
+    private void storeEncryptionCiphers(SecretKey key, CallbackInfo ci) {
+        if (viaForge$targetVersion != null && viaForge$targetVersion.olderThanOrEqualTo(LegacyProtocolVersion.r1_6_4)) {
+            // Minecraft's encryption code is bad for us, we need to reorder the pipeline
+            ci.cancel();
+
+            // Minecraft 1.6.4 supports tile encryption which means the server can only enable one side of the encryption
+            // So we only enable the encryption side and later enable the decryption side if the 1.7 -> 1.6 protocol
+            // tells us to do, therefore we need to store the cipher instance.
+            this.viaForge$decryptionCipher = CryptManager.createNetCipherInstance(2, key);
+
+            // Enabling the encryption side
+            this.isEncrypted = true;
+            this.channel.pipeline().addBefore(VLLegacyPipeline.VIALEGACY_PRE_NETTY_LENGTH_REMOVER_NAME, "encrypt", new NettyEncryptingEncoder(CryptManager.createNetCipherInstance(1, key)));
+        }
+    }
+
+    @Inject(method = "createNetworkManagerAndConnect", at = @At(value = "INVOKE", target = "Lio/netty/bootstrap/Bootstrap;group(Lio/netty/channel/EventLoopGroup;)Lio/netty/bootstrap/AbstractBootstrap;"), locals = LocalCapture.CAPTURE_FAILHARD)
+    private static void setTargetVersion(InetAddress address, int serverPort, boolean useNativeTransport, CallbackInfoReturnable<NetworkManager> cir, NetworkManager networkmanager, Class oclass, LazyLoadBase lazyloadbase) {
+        final VFNetworkManager mixinNetworkManager = (VFNetworkManager) networkmanager;
+        mixinNetworkManager.viaForge$setTrackedVersion(VersionTracker.getServerProtocolVersion(address));
+    }
+
+    @Override
+    public void viaForge$setupPreNettyDecryption() {
+        // Enabling the decryption side for 1.6.4 if the 1.7 -> 1.6 protocol tells us to do
+        this.channel.pipeline().addBefore(VLLegacyPipeline.VIALEGACY_PRE_NETTY_LENGTH_REMOVER_NAME, "decrypt", new NettyEncryptingDecoder(this.viaForge$decryptionCipher));
+    }
+
+    @Override
+    public ProtocolVersion viaForge$getTrackedVersion() {
+        return viaForge$targetVersion;
+    }
+
+    @Override
+    public void viaForge$setTrackedVersion(ProtocolVersion version) {
+        viaForge$targetVersion = version;
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/connect/MixinNetworkManager_5.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
- * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,16 +15,14 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package de.florianmichael.viaforge.mixin.impl;
 
-import com.viaversion.viaversion.api.connection.UserConnection;
-import com.viaversion.viaversion.connection.UserConnectionImpl;
-import com.viaversion.viaversion.protocol.ProtocolPipelineImpl;
-import de.florianmichael.viaforge.ViaForge;
-import de.florianmichael.viaforge.ViaForgeVLLegacyPipeline;
+package de.florianmichael.viaforge.mixin.impl.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
 import io.netty.channel.Channel;
-import io.netty.channel.socket.SocketChannel;
-import org.spongepowered.asm.mixin.Mixin;
+import net.minecraft.network.NetworkManager;
+import org.spongepowered.asm.mixin.*;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
@@ -32,13 +30,13 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 @Mixin(targets = "net.minecraft.network.NetworkManager$5")
 public class MixinNetworkManager_5 {
 
-    @Inject(method = "initChannel", at = @At(value = "TAIL"), remap = false)
-    private void onInitChannel(Channel channel, CallbackInfo ci) {
-        if (channel instanceof SocketChannel && ViaForge.targetVersion != ViaForge.NATIVE_VERSION) {
-            final UserConnection user = new UserConnectionImpl(channel, true);
-            new ProtocolPipelineImpl(user);
+    @Final
+    @Mutable
+    NetworkManager val$networkmanager;
 
-            channel.pipeline().addLast(new ViaForgeVLLegacyPipeline(user, ViaForge.targetVersion));
-        }
+    @Inject(method = "initChannel", at = @At(value = "TAIL"), remap = false)
+    private void hookViaPipeline(Channel channel, CallbackInfo ci) {
+        ViaForgeCommon.getManager().inject(channel, (VFNetworkManager) val$networkmanager);
     }
+
 }

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/connect/MixinServerPinger.java

@@ -0,0 +1,60 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.impl.connect;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import de.florianmichael.viaforge.common.platform.VersionTracker;
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.client.network.ServerPinger;
+import net.minecraft.network.NetworkManager;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.net.InetAddress;
+
+@Mixin(ServerPinger.class)
+public class MixinServerPinger {
+
+    @Unique
+    private ServerData viaForge$serverData;
+
+    @Inject(method = "ping", at = @At("HEAD"))
+    public void trackServerData(ServerData server, CallbackInfo ci) {
+        viaForge$serverData = server;
+    }
+
+    @Redirect(method = "ping", at = @At(value = "INVOKE", target = "Lnet/minecraft/network/NetworkManager;createNetworkManagerAndConnect(Ljava/net/InetAddress;IZ)Lnet/minecraft/network/NetworkManager;"))
+    public NetworkManager trackVersion(InetAddress address, int i, boolean b) {
+        ProtocolVersion version = ((ExtendedServerData) viaForge$serverData).viaForge$getVersion();
+        if (version == null) {
+            version = ViaForgeCommon.getManager().getTargetVersion();
+        }
+        VersionTracker.storeServerProtocolVersion(address, version);
+        viaForge$serverData = null;
+
+        return NetworkManager.createNetworkManagerAndConnect(address, i, b);
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/mixin/impl/fixes/MixinEntityPlayerSP.java

@@ -0,0 +1,56 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.impl.fixes;
+
+import com.mojang.authlib.GameProfile;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.minecraft.client.entity.AbstractClientPlayer;
+import net.minecraft.client.entity.EntityPlayerSP;
+import net.minecraft.world.World;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(EntityPlayerSP.class)
+public class MixinEntityPlayerSP extends AbstractClientPlayer {
+
+    @Shadow private boolean prevOnGround;
+
+    public MixinEntityPlayerSP(World worldIn, GameProfile playerProfile) {
+        super(worldIn, playerProfile);
+    }
+
+    @Redirect(method = "onUpdateWalkingPlayer", at = @At(value = "FIELD", target = "Lnet/minecraft/client/entity/EntityPlayerSP;prevOnGround:Z", ordinal = 0))
+    public boolean emulateIdlePacket(EntityPlayerSP instance) {
+        if (ViaForgeCommon.getManager().getTargetVersion().olderThanOrEqualTo(ProtocolVersion.v1_8)) {
+            // <= 1.8 spams the idle packet instead of only sending it when the ground state changes
+            // So we invert the original logic:
+            // if (prevOnGround != onGround) sendPacket
+            // To be like:
+            // if (!onGround != onGround) sendPacket
+            // Which is the same as:
+            // if (true) sendPacket
+            return !onGround;
+        }
+        return prevOnGround;
+    }
+
+}

viaforge-mc1122/src/main/java/de/florianmichael/viaforge/provider/ViaForgeGameProfileFetcher.java

@@ -0,0 +1,77 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.provider;
+
+import com.mojang.authlib.Agent;
+import com.mojang.authlib.GameProfileRepository;
+import com.mojang.authlib.HttpAuthenticationService;
+import com.mojang.authlib.ProfileLookupCallback;
+import com.mojang.authlib.minecraft.MinecraftSessionService;
+import com.mojang.authlib.properties.Property;
+import com.mojang.authlib.yggdrasil.ProfileNotFoundException;
+import com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.model.GameProfile;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.provider.GameProfileFetcher;
+
+import java.net.Proxy;
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+
+public class ViaForgeGameProfileFetcher extends GameProfileFetcher {
+
+    public static final HttpAuthenticationService AUTHENTICATION_SERVICE = new YggdrasilAuthenticationService(Proxy.NO_PROXY, "");
+    public static final MinecraftSessionService SESSION_SERVICE = AUTHENTICATION_SERVICE.createMinecraftSessionService();
+    public static final GameProfileRepository GAME_PROFILE_REPOSITORY = AUTHENTICATION_SERVICE.createProfileRepository();
+
+    @Override
+    public UUID loadMojangUUID(String playerName) throws Exception {
+        final CompletableFuture<com.mojang.authlib.GameProfile> future = new CompletableFuture<>();
+        GAME_PROFILE_REPOSITORY.findProfilesByNames(new String[]{playerName}, Agent.MINECRAFT, new ProfileLookupCallback() {
+            @Override
+            public void onProfileLookupSucceeded(com.mojang.authlib.GameProfile profile) {
+                future.complete(profile);
+            }
+
+            @Override
+            public void onProfileLookupFailed(com.mojang.authlib.GameProfile profile, Exception exception) {
+                future.completeExceptionally(exception);
+            }
+        });
+        if (!future.isDone()) {
+            future.completeExceptionally(new ProfileNotFoundException());
+        }
+        return future.get().getId();
+    }
+
+    @Override
+    public GameProfile loadGameProfile(UUID uuid) {
+        final com.mojang.authlib.GameProfile inProfile = new com.mojang.authlib.GameProfile(uuid, null);
+        final com.mojang.authlib.GameProfile mojangProfile = SESSION_SERVICE.fillProfileProperties(inProfile, true);
+        if (mojangProfile.equals(inProfile)) throw new ProfileNotFoundException();
+
+        final GameProfile gameProfile = new GameProfile(mojangProfile.getName(), mojangProfile.getId());
+        for (final java.util.Map.Entry<String, Property> entry : mojangProfile.getProperties().entries()) {
+            final Property prop = entry.getValue();
+            gameProfile.addProperty(new GameProfile.Property(prop.getName(), prop.getValue(), prop.getSignature()));
+        }
+
+        return gameProfile;
+    }
+
+}

viaforge-mc1122/src/main/resources/mcmod.info

@@ -0,0 +1,15 @@
+[
+  {
+    "modid": "viaforge",
+    "name": "ViaForge",
+    "description": "Client-side Implementation of the Via* projects for Minecraft Forge",
+    "version": "${version}",
+    "mcversion": "[1.12,)",
+    "url": "https://github.com/ViaVersion/ViaForge",
+    "authorList": [
+      "FlorianMichael/EnZaXD"
+    ],
+    "credits": "https://github.com/FlorianMichael/",
+    "logoFile": "icon.png"
+  }
+]

viaforge-mc1122/src/main/resources/mixins.viaforge-mc1122.json

@@ -0,0 +1,22 @@
+{
+  "required": true,
+  "minVersion": "0.7.5",
+  "compatibilityLevel": "JAVA_8",
+  "package": "de.florianmichael.viaforge.mixin.impl",
+  "refmap": "mixins.viaforge-mc1122.refmap.json",
+  "client": [
+    "connect.MixinGuiConnecting_1",
+    "MixinGuiMainMenu",
+    "MixinGuiMultiplayer",
+    "MixinGuiOverlayDebug",
+    "MixinGuiScreenAddServer",
+    "MixinGuiScreenServerList",
+    "connect.MixinNetHandlerLoginClient",
+    "connect.MixinNetworkManager",
+    "connect.MixinNetworkManager_5",
+    "MixinServerData",
+    "connect.MixinServerPinger",
+    "fixes.MixinEntityPlayerSP"
+  ],
+  "verbose": true
+}

viaforge-mc1165/build.gradle

@@ -0,0 +1,7 @@
+minecraft {
+    mappings channel: "official", version: "1.16.5"
+}
+
+dependencies {
+    minecraft "net.minecraftforge:forge:1.16.5-36.2.39"
+}

viaforge-mc1165/gradle.properties

@@ -0,0 +1,2 @@
+maven_name=viaforge-mc1165
+mc_version=1.16.5

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/ViaForge1165.java

@@ -0,0 +1,73 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.VFPlatform;
+import de.florianmichael.viaforge.provider.ViaForgeGameProfileFetcher;
+import net.minecraft.client.Minecraft;
+import net.minecraft.util.Session;
+import net.minecraft.util.SharedConstants;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
+import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.provider.GameProfileFetcher;
+
+import java.io.File;
+import java.util.function.Supplier;
+
+@Mod("viaforge")
+public class ViaForge1165 implements VFPlatform {
+
+    public ViaForge1165() {
+        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::onInit);
+    }
+
+    public void onInit(FMLCommonSetupEvent event) {
+        ViaForgeCommon.init(this);
+    }
+
+    @Override
+    public int getGameVersion() {
+        return SharedConstants.getProtocolVersion();
+    }
+
+    @Override
+    public Supplier<Boolean> isSingleplayer() {
+        return () -> Minecraft.getInstance().hasSingleplayerServer();
+    }
+
+    @Override
+    public File getLeadingDirectory() {
+        return Minecraft.getInstance().gameDirectory;
+    }
+
+    @Override
+    public void joinServer(String serverId) throws Throwable {
+        final Session session = Minecraft.getInstance().getUser();
+
+        Minecraft.getInstance().getMinecraftSessionService().joinServer(session.getGameProfile(), session.getAccessToken(), serverId);
+    }
+
+    @Override
+    public GameProfileFetcher getGameProfileFetcher() {
+        return new ViaForgeGameProfileFetcher();
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/gui/GuiProtocolSelector.java

@@ -0,0 +1,167 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.gui;
+
+import com.mojang.blaze3d.matrix.MatrixStack;
+import com.viaversion.viaversion.api.Via;
+import com.viaversion.viaversion.util.DumpUtil;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.client.gui.widget.list.AbstractList;
+import net.minecraft.client.gui.widget.list.ExtendedList;
+import net.minecraft.util.text.StringTextComponent;
+import net.minecraft.util.text.TextFormatting;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import net.raphimc.vialoader.util.ProtocolVersionList;
+import org.lwjgl.glfw.GLFW;
+import org.lwjgl.opengl.GL11;
+
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+
+public class GuiProtocolSelector extends Screen {
+
+    public final Screen parent;
+    public final boolean simple;
+    public final FinishedCallback finishedCallback;
+
+    private SlotList list;
+
+    private String status;
+    private long time;
+
+    public static void open(final Minecraft minecraft) { // Bypass for some weird bytecode instructions errors in Forge
+        minecraft.setScreen(new GuiProtocolSelector(minecraft.screen));
+    }
+
+    public GuiProtocolSelector(final Screen parent) {
+        this(parent, false, (version, unused) -> {
+            // Default action is to set the target version and go back to the parent screen.
+            ViaForgeCommon.getManager().setTargetVersion(version);
+        });
+    }
+
+    public GuiProtocolSelector(final Screen parent, final boolean simple, final FinishedCallback finishedCallback) {
+        super(new StringTextComponent("ViaForge Protocol Selector"));
+        this.parent = parent;
+        this.simple = simple;
+        this.finishedCallback = finishedCallback;
+    }
+
+    @Override
+    public void init() {
+        super.init();
+        addButton(new Button(5, height - 25, 20, 20, new StringTextComponent("<-"), b -> minecraft.setScreen(parent)));
+        if (!this.simple) {
+            addButton(new Button(width - 105, 5, 100, 20, new StringTextComponent("Create dump"), b -> {
+                try {
+                    minecraft.keyboardHandler.setClipboard(DumpUtil.postDump(UUID.randomUUID()).get());
+                    setStatus(TextFormatting.GREEN + "Dump created and copied to clipboard");
+                } catch (InterruptedException | ExecutionException e) {
+                    setStatus(TextFormatting.RED + "Failed to create dump: " + e.getMessage());
+                }
+            }));
+            addButton(new Button(width - 105, height - 25, 100, 20, new StringTextComponent("Reload configs"), b -> Via.getManager().getConfigurationProvider().reloadConfigs()));
+        }
+
+        addWidget(list = new SlotList(minecraft, width, height, 3 + 3 /* start offset */ + (font.lineHeight + 2) * 3 /* title is 2 */, height - 30, font.lineHeight + 2));
+    }
+
+    public void setStatus(final String status) {
+        this.status = status;
+        this.time = System.currentTimeMillis();
+    }
+
+    @Override
+    public boolean keyPressed(int keyCode, int scanCode, int actions) {
+        if (keyCode == GLFW.GLFW_KEY_ESCAPE) {
+            minecraft.setScreen(parent);
+        }
+        return super.keyPressed(keyCode, scanCode, actions);
+    }
+
+    @Override
+    public void render(MatrixStack matrices, int p_230430_2_, int p_230430_3_, float p_230430_4_) {
+        if (System.currentTimeMillis() - this.time >= 10_000) {
+            this.status = null;
+        }
+
+        renderBackground(matrices);
+        list.render(matrices, p_230430_2_, p_230430_3_, p_230430_4_);
+
+        super.render(matrices, p_230430_2_, p_230430_3_, p_230430_4_);
+
+        GL11.glPushMatrix();
+        GL11.glScalef(2.0F, 2.0F, 2.0F);
+        drawCenteredString(matrices, font, TextFormatting.GOLD + "ViaForge", width / 4, 3, 16777215);
+        GL11.glPopMatrix();
+
+        drawCenteredString(matrices, font, "https://github.com/ViaVersion/ViaForge", width / 2, (font.lineHeight + 2) * 2 + 3, -1);
+        drawString(matrices, font, status != null ? status : "Discord: florianmichael", 3, 3, -1);
+    }
+
+    class SlotList extends ExtendedList<SlotList.SlotEntry> {
+
+        public SlotList(Minecraft client, int width, int height, int top, int bottom, int slotHeight) {
+            super(client, width, height, top, bottom, slotHeight);
+
+            for (ProtocolVersion version : ProtocolVersionList.getProtocolsNewToOld()) {
+                addEntry(new SlotEntry(version));
+            }
+        }
+
+        public class SlotEntry extends AbstractList.AbstractListEntry<SlotEntry> {
+
+            private final ProtocolVersion ProtocolVersion;
+
+            public SlotEntry(ProtocolVersion ProtocolVersion) {
+                this.ProtocolVersion = ProtocolVersion;
+            }
+
+            @Override
+            public boolean mouseClicked(double mouseX, double mouseY, int button) {
+                GuiProtocolSelector.this.finishedCallback.finished(ProtocolVersion, GuiProtocolSelector.this.parent);
+                return super.mouseClicked(mouseX, mouseY, button);
+            }
+
+            @Override
+            public void render(MatrixStack matrices, int p_230432_2_, int y, int p_230432_4_, int p_230432_5_, int p_230432_6_, int p_230432_7_, int p_230432_8_, boolean p_230432_9_, float p_230432_10_) {
+                final ProtocolVersion targetVersion = ViaForgeCommon.getManager().getTargetVersion();
+
+                String color;
+                if (targetVersion == ProtocolVersion) {
+                    color = GuiProtocolSelector.this.simple ? TextFormatting.GOLD.toString() : TextFormatting.GREEN.toString();
+                } else {
+                    color = GuiProtocolSelector.this.simple ? TextFormatting.WHITE.toString() : TextFormatting.DARK_RED.toString();
+                }
+
+                drawCenteredString(matrices, Minecraft.getInstance().font, color + ProtocolVersion.getName(), width / 2, y, -1);
+            }
+        }
+    }
+
+    public interface FinishedCallback {
+
+        void finished(final ProtocolVersion version, final Screen parent);
+
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/MixinAddServerScreen.java

@@ -0,0 +1,67 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.screen.AddServerScreen;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.StringTextComponent;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(AddServerScreen.class)
+public class MixinAddServerScreen extends Screen {
+
+    @Shadow @Final private ServerData serverData;
+
+    public MixinAddServerScreen(ITextComponent title) {
+        super(title);
+    }
+
+    @Inject(method = "init", at = @At("RETURN"))
+    public void initGui(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+
+        if (config.isShowAddServerButton()) {
+            final Pair<Integer, Integer> pos = config.getAddServerScreenButtonPosition().getPosition(this.width, this.height);
+
+            final ProtocolVersion target = ((ExtendedServerData) serverData).viaForge$getVersion();
+           addButton(new Button(pos.key(), pos.value(), 100, 20, new StringTextComponent(target != null ? target.getName() : "Set Version"), b -> {
+               minecraft.setScreen(new GuiProtocolSelector(this, true, (version, parent) -> {
+                   // Set version and go back to the parent screen.
+                   ((ExtendedServerData) serverData).viaForge$setVersion(version);
+                   minecraft.setScreen(parent);
+               }));
+           }));
+        }
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/MixinDebugOverlayGui.java

@@ -0,0 +1,45 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.minecraft.client.gui.overlay.DebugOverlayGui;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.util.List;
+
+@Mixin(DebugOverlayGui.class)
+public class MixinDebugOverlayGui {
+
+    @Inject(method = "getSystemInformation", at = @At(value = "TAIL"))
+    public void addViaForgeVersion(CallbackInfoReturnable<List<String>> cir) {
+        final ViaForgeCommon common = ViaForgeCommon.getManager();
+        final ProtocolVersion version = ViaForgeCommon.getManager().getTargetVersion();
+
+        if (common.getConfig().isShowProtocolVersionInF3() && version != common.getNativeVersion() && !common.getPlatform().isSingleplayer().get()) {
+            cir.getReturnValue().add("");
+            cir.getReturnValue().add("ViaForge: " + version.toString());
+        }
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/MixinMainMenuScreen.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.screen.MainMenuScreen;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.StringTextComponent;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(MainMenuScreen.class)
+public class MixinMainMenuScreen extends Screen {
+
+    public MixinMainMenuScreen(ITextComponent title) {
+        super(title);
+    }
+
+    @Inject(method = "init", at = @At("RETURN"))
+    public void hookViaForgeButton(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+        if (config.isShowMainMenuButton()) {
+            final Pair<Integer, Integer> pos = config.getViaForgeButtonPosition().getPosition(this.width, this.height);
+
+            addButton(new Button(pos.key(), pos.value(), 100, 20, new StringTextComponent("ViaForge"), buttons -> GuiProtocolSelector.open(minecraft)));
+        }
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/MixinMultiplayerScreen.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.screen.MultiplayerScreen;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.StringTextComponent;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(MultiplayerScreen.class)
+public class MixinMultiplayerScreen extends Screen {
+
+    public MixinMultiplayerScreen(ITextComponent title) {
+        super(title);
+    }
+
+    @Inject(method = "init", at = @At("RETURN"))
+    public void hookViaForgeButton(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+        if (config.isShowMainMenuButton()) {
+            final Pair<Integer, Integer> pos = config.getViaForgeButtonPosition().getPosition(this.width, this.height);
+
+            addButton(new Button(pos.key(), pos.value(), 100, 20, new StringTextComponent("ViaForge"), buttons -> GuiProtocolSelector.open(minecraft)));
+        }
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/MixinServerData.java

@@ -0,0 +1,70 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.nbt.CompoundNBT;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+@Mixin(ServerData.class)
+public class MixinServerData implements ExtendedServerData {
+
+    @Unique
+    private ProtocolVersion viaForge$version;
+
+    @Inject(method = "write", at = @At(value = "INVOKE", target = "Lnet/minecraft/nbt/CompoundNBT;putString(Ljava/lang/String;Ljava/lang/String;)V", ordinal = 0), locals = LocalCapture.CAPTURE_FAILHARD)
+    public void saveVersion(CallbackInfoReturnable<CompoundNBT> cir, CompoundNBT compoundnbt) {
+        if (viaForge$version != null) {
+            compoundnbt.putString("viaForge$version", viaForge$version.getName());
+        }
+    }
+
+    @Inject(method = "read", at = @At(value = "TAIL"))
+    private static void getVersion(CompoundNBT compoundnbt, CallbackInfoReturnable<ServerData> cir) {
+        if (compoundnbt.contains("viaForge$version")) {
+            ((ExtendedServerData) cir.getReturnValue()).viaForge$setVersion(ProtocolVersion.getClosest(compoundnbt.getString("viaForge$version")));
+        }
+    }
+
+    @Inject(method = "copyFrom", at = @At("HEAD"))
+    public void track(ServerData serverDataIn, CallbackInfo ci) {
+        if (serverDataIn instanceof ExtendedServerData) {
+            viaForge$version = ((ExtendedServerData) serverDataIn).viaForge$getVersion();
+        }
+    }
+
+    @Override
+    public ProtocolVersion viaForge$getVersion() {
+        return viaForge$version;
+    }
+
+    @Override
+    public void viaForge$setVersion(ProtocolVersion version) {
+        viaForge$version = version;
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/MixinServerListScreen.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.screen.ServerListScreen;
+import net.minecraft.client.gui.widget.button.Button;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraft.util.text.StringTextComponent;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(ServerListScreen.class)
+public class MixinServerListScreen extends Screen {
+
+    public MixinServerListScreen(ITextComponent title) {
+        super(title);
+    }
+
+    @Inject(method = "init", at = @At("RETURN"))
+    public void hookViaForgeButton(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+        if (config.isShowDirectConnectButton()) {
+            final Pair<Integer, Integer> pos = config.getViaForgeButtonPosition().getPosition(this.width, this.height);
+
+            addButton(new Button(pos.key(), pos.value(), 100, 20, new StringTextComponent("ViaForge"), b -> GuiProtocolSelector.open(minecraft)));
+        }
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinClientLoginNetHandler.java

@@ -0,0 +1,58 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.connect;
+
+import com.mojang.authlib.GameProfile;
+import com.mojang.authlib.exceptions.AuthenticationException;
+import com.mojang.authlib.minecraft.MinecraftSessionService;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
+import net.minecraft.client.network.login.ClientLoginNetHandler;
+import net.minecraft.network.NetworkManager;
+import net.raphimc.vialegacy.api.LegacyProtocolVersion;
+import net.raphimc.vialegacy.protocol.release.r1_6_4tor1_7_2_5.storage.ProtocolMetadataStorage;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@SuppressWarnings("DataFlowIssue")
+@Mixin(ClientLoginNetHandler.class)
+public class MixinClientLoginNetHandler {
+
+    @Shadow @Final private NetworkManager connection;
+
+    @Redirect(method = "authenticateServer", at = @At(value = "INVOKE", target = "Lcom/mojang/authlib/minecraft/MinecraftSessionService;joinServer(Lcom/mojang/authlib/GameProfile;Ljava/lang/String;Ljava/lang/String;)V"))
+    public void onlyJoinServerIfPremium(MinecraftSessionService instance, GameProfile profile, String authenticationToken, String serverId) throws AuthenticationException {
+        final VFNetworkManager mixinConnection = (VFNetworkManager) connection;
+        if (mixinConnection.viaForge$getTrackedVersion().olderThanOrEqualTo(LegacyProtocolVersion.r1_6_4)) {
+            final UserConnection user = connection.channel().attr(ViaForgeCommon.LOCAL_VIA_USER).get();
+            if (user != null && user.has(ProtocolMetadataStorage.class) && !user.get(ProtocolMetadataStorage.class).authenticate) {
+                // We are in the 1.7 -> 1.6 protocol, so we need to skip the joinServer call
+                // if the server is in offline mode, due the packet changes <-> networking changes
+                // Minecraft's networking code is bad for us.
+                return;
+            }
+        }
+        instance.joinServer(profile, authenticationToken, serverId);
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinConnectingScreen_1.java

@@ -0,0 +1,48 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import de.florianmichael.viaforge.common.platform.VersionTracker;
+import net.minecraft.client.Minecraft;
+import net.minecraft.network.NetworkManager;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+@Mixin(targets = "net.minecraft.client.gui.screen.ConnectingScreen$1")
+public class MixinConnectingScreen_1 {
+
+    @Redirect(method = "run", at = @At(value = "INVOKE", target = "Ljava/net/InetAddress;getByName(Ljava/lang/String;)Ljava/net/InetAddress;"))
+    public InetAddress trackServerVersion(String s) throws UnknownHostException {
+        final InetAddress address = InetAddress.getByName(s);
+        ProtocolVersion version = ((ExtendedServerData) Minecraft.getInstance().getCurrentServer()).viaForge$getVersion();
+        if (version == null) {
+            version = ViaForgeCommon.getManager().getTargetVersion();
+        }
+        VersionTracker.storeServerProtocolVersion(address, version);
+        return address;
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinNetworkManager.java

@@ -0,0 +1,100 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.VersionTracker;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
+import io.netty.channel.Channel;
+import net.minecraft.network.NettyEncryptingDecoder;
+import net.minecraft.network.NettyEncryptingEncoder;
+import net.minecraft.network.NetworkManager;
+import net.minecraft.util.LazyValue;
+import net.raphimc.vialegacy.api.LegacyProtocolVersion;
+import net.raphimc.vialoader.netty.VLLegacyPipeline;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+import javax.crypto.Cipher;
+import java.net.InetAddress;
+
+@Mixin(NetworkManager.class)
+public class MixinNetworkManager implements VFNetworkManager {
+
+    @Shadow private Channel channel;
+
+    @Shadow private boolean encrypted;
+    @Unique
+    private Cipher viaForge$decryptionCipher;
+
+    @Unique
+    private ProtocolVersion viaForge$targetVersion;
+
+    @Inject(method = "setupCompression", at = @At("RETURN"))
+    public void reorderPipeline(int p_setCompressionTreshold_1_, CallbackInfo ci) {
+        ViaForgeCommon.getManager().reorderCompression(channel);
+    }
+
+    @Inject(method = "setEncryptionKey", at = @At("HEAD"), cancellable = true)
+    private void storeEncryptionCiphers(Cipher p_244777_1_, Cipher p_244777_2_, CallbackInfo ci) {
+        if (viaForge$targetVersion != null && viaForge$targetVersion.olderThanOrEqualTo(LegacyProtocolVersion.r1_6_4)) {
+            // Minecraft's encryption code is bad for us, we need to reorder the pipeline
+            ci.cancel();
+
+            // Minecraft 1.6.4 supports tile encryption which means the server can only enable one side of the encryption
+            // So we only enable the encryption side and later enable the decryption side if the 1.7 -> 1.6 protocol
+            // tells us to do, therefore we need to store the cipher instance.
+            this.viaForge$decryptionCipher = p_244777_1_;
+
+            // Enabling the encryption side
+            this.encrypted = true;
+            this.channel.pipeline().addBefore(VLLegacyPipeline.VIALEGACY_PRE_NETTY_LENGTH_REMOVER_NAME, "encrypt", new NettyEncryptingEncoder(p_244777_2_));
+        }
+    }
+
+    @Inject(method = "connectToServer", at = @At(value = "INVOKE", target = "Lio/netty/bootstrap/Bootstrap;group(Lio/netty/channel/EventLoopGroup;)Lio/netty/bootstrap/AbstractBootstrap;"), locals = LocalCapture.CAPTURE_FAILHARD)
+    private static void setTargetVersion(InetAddress address, int serverPort, boolean useNativeTransport, CallbackInfoReturnable<NetworkManager> cir, NetworkManager networkmanager, Class oclass, LazyValue lazyvalue) {
+        final VFNetworkManager mixinNetworkManager = (VFNetworkManager) networkmanager;
+        mixinNetworkManager.viaForge$setTrackedVersion(VersionTracker.getServerProtocolVersion(address));
+    }
+
+    @Override
+    public void viaForge$setupPreNettyDecryption() {
+        // Enabling the decryption side for 1.6.4 if the 1.7 -> 1.6 protocol tells us to do
+        this.channel.pipeline().addBefore(VLLegacyPipeline.VIALEGACY_PRE_NETTY_LENGTH_REMOVER_NAME, "decrypt", new NettyEncryptingDecoder(this.viaForge$decryptionCipher));
+    }
+
+    @Override
+    public ProtocolVersion viaForge$getTrackedVersion() {
+        return viaForge$targetVersion;
+    }
+
+    @Override
+    public void viaForge$setTrackedVersion(ProtocolVersion version) {
+        viaForge$targetVersion = version;
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinNetworkManager_1.java

@@ -0,0 +1,44 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
+import io.netty.channel.Channel;
+import net.minecraft.network.NetworkManager;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Mutable;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(targets = "net.minecraft.network.NetworkManager$1")
+public class MixinNetworkManager_1 {
+
+    @Final
+    @Mutable
+    NetworkManager val$networkmanager;
+
+    @Inject(method = "initChannel", at = @At(value = "TAIL"), remap = false)
+    private void hookViaPipeline(Channel channel, CallbackInfo ci) {
+        ViaForgeCommon.getManager().inject(channel, (VFNetworkManager) val$networkmanager);
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinServerPinger.java

@@ -0,0 +1,60 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import de.florianmichael.viaforge.common.platform.VersionTracker;
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.client.network.ServerPinger;
+import net.minecraft.network.NetworkManager;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.net.InetAddress;
+
+@Mixin(ServerPinger.class)
+public class MixinServerPinger {
+
+    @Unique
+    private ServerData viaForge$serverData;
+
+    @Inject(method = "pingServer", at = @At("HEAD"))
+    public void trackServerData(ServerData server, Runnable p_147224_2_, CallbackInfo ci) {
+        viaForge$serverData = server;
+    }
+
+    @Redirect(method = "pingServer", at = @At(value = "INVOKE", target = "Lnet/minecraft/network/NetworkManager;connectToServer(Ljava/net/InetAddress;IZ)Lnet/minecraft/network/NetworkManager;"))
+    public NetworkManager trackVersion(InetAddress address, int i, boolean b) {
+        ProtocolVersion version = ((ExtendedServerData) viaForge$serverData).viaForge$getVersion();
+        if (version == null) {
+            version = ViaForgeCommon.getManager().getTargetVersion();
+        }
+        VersionTracker.storeServerProtocolVersion(address, version);
+        viaForge$serverData = null;
+
+        return NetworkManager.connectToServer(address, i, b);
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/mixin/fixes/MixinClientPlayerEntity.java

@@ -0,0 +1,56 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.fixes;
+
+import com.mojang.authlib.GameProfile;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.minecraft.client.entity.player.AbstractClientPlayerEntity;
+import net.minecraft.client.entity.player.ClientPlayerEntity;
+import net.minecraft.client.world.ClientWorld;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(ClientPlayerEntity.class)
+public class MixinClientPlayerEntity extends AbstractClientPlayerEntity {
+
+    @Shadow private boolean lastOnGround;
+
+    public MixinClientPlayerEntity(ClientWorld world, GameProfile profile) {
+        super(world, profile);
+    }
+
+    @Redirect(method = "sendPosition", at = @At(value = "FIELD", target = "Lnet/minecraft/client/entity/player/ClientPlayerEntity;lastOnGround:Z", ordinal = 0))
+    public boolean emulateIdlePacket(ClientPlayerEntity instance) {
+        if (ViaForgeCommon.getManager().getTargetVersion().olderThanOrEqualTo(ProtocolVersion.v1_8)) {
+            // <= 1.8 spams the idle packet instead of only sending it when the ground state changes
+            // So we invert the original logic:
+            // if (prevOnGround != onGround) sendPacket
+            // To be like:
+            // if (!onGround != onGround) sendPacket
+            // Which is the same as:
+            // if (true) sendPacket
+            return !onGround;
+        }
+        return lastOnGround;
+    }
+
+}

viaforge-mc1165/src/main/java/de/florianmichael/viaforge/provider/ViaForgeGameProfileFetcher.java

@@ -0,0 +1,77 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.provider;
+
+import com.mojang.authlib.Agent;
+import com.mojang.authlib.GameProfileRepository;
+import com.mojang.authlib.HttpAuthenticationService;
+import com.mojang.authlib.ProfileLookupCallback;
+import com.mojang.authlib.minecraft.MinecraftSessionService;
+import com.mojang.authlib.properties.Property;
+import com.mojang.authlib.yggdrasil.ProfileNotFoundException;
+import com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.provider.GameProfileFetcher;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.model.GameProfile;
+
+import java.net.Proxy;
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+
+public class ViaForgeGameProfileFetcher extends GameProfileFetcher {
+
+    public static final HttpAuthenticationService AUTHENTICATION_SERVICE = new YggdrasilAuthenticationService(Proxy.NO_PROXY, "");
+    public static final MinecraftSessionService SESSION_SERVICE = AUTHENTICATION_SERVICE.createMinecraftSessionService();
+    public static final GameProfileRepository GAME_PROFILE_REPOSITORY = AUTHENTICATION_SERVICE.createProfileRepository();
+
+    @Override
+    public UUID loadMojangUUID(String playerName) throws Exception {
+        final CompletableFuture<com.mojang.authlib.GameProfile> future = new CompletableFuture<>();
+        GAME_PROFILE_REPOSITORY.findProfilesByNames(new String[]{playerName}, Agent.MINECRAFT, new ProfileLookupCallback() {
+            @Override
+            public void onProfileLookupSucceeded(com.mojang.authlib.GameProfile profile) {
+                future.complete(profile);
+            }
+
+            @Override
+            public void onProfileLookupFailed(com.mojang.authlib.GameProfile profile, Exception exception) {
+                future.completeExceptionally(exception);
+            }
+        });
+        if (!future.isDone()) {
+            future.completeExceptionally(new ProfileNotFoundException());
+        }
+        return future.get().getId();
+    }
+
+    @Override
+    public GameProfile loadGameProfile(UUID uuid) throws Exception {
+        final com.mojang.authlib.GameProfile inProfile = new com.mojang.authlib.GameProfile(uuid, null);
+        final com.mojang.authlib.GameProfile mojangProfile = SESSION_SERVICE.fillProfileProperties(inProfile, true);
+        if (mojangProfile.equals(inProfile)) throw new ProfileNotFoundException();
+
+        final GameProfile gameProfile = new GameProfile(mojangProfile.getName(), mojangProfile.getId());
+        for (final java.util.Map.Entry<String, Property> entry : mojangProfile.getProperties().entries()) {
+            final Property prop = entry.getValue();
+            gameProfile.addProperty(new GameProfile.Property(prop.getName(), prop.getValue(), prop.getSignature()));
+        }
+
+        return gameProfile;
+    }
+
+}

viaforge-mc1165/src/main/resources/META-INF/mods.toml

@@ -0,0 +1,18 @@
+modLoader="javafml"
+loaderVersion="[36,)"
+
+license="GPL-3.0 license"
+issueTrackerURL="https://github.com/ViaVersion/ViaForge/issues"
+showAsResourcePack=false
+
+[[mods]]
+modId="viaforge"
+version="${version}"
+displayName="ViaForge"
+displayURL="https://github.com/FlorianMichael"
+logoFile="icon.png"
+credits="Github contributors"
+authors="FlorianMichael/EnZaXD"
+description='''
+  Client-side Implementation of the Via* projects for Minecraft Forge
+  '''

viaforge-mc1165/src/main/resources/mixins.viaforge-mc1165.json

@@ -0,0 +1,24 @@
+{
+  "required": true,
+  "minVersion": "0.7.5",
+  "compatibilityLevel": "JAVA_8",
+  "package": "de.florianmichael.viaforge.mixin",
+  "client": [
+    "MixinAddServerScreen",
+    "connect.MixinClientLoginNetHandler",
+    "connect.MixinConnectingScreen_1",
+    "MixinDebugOverlayGui",
+    "MixinMainMenuScreen",
+    "MixinMultiplayerScreen",
+    "connect.MixinNetworkManager",
+    "connect.MixinNetworkManager_1",
+    "MixinServerData",
+    "MixinServerListScreen",
+    "connect.MixinServerPinger",
+    "fixes.MixinClientPlayerEntity"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  },
+  "refmap": "mixins.viaforge-mc1165.refmap.json"
+}

viaforge-mc1171/build.gradle

@@ -0,0 +1,7 @@
+minecraft {
+    mappings channel: "official", version: "1.17.1"
+}
+
+dependencies {
+    minecraft "net.minecraftforge:forge:1.17.1-37.1.1"
+}

viaforge-mc1171/gradle.properties

@@ -0,0 +1,2 @@
+maven_name=viaforge-mc1171
+mc_version=1.17.1

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/ViaForge1171.java

@@ -0,0 +1,73 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.VFPlatform;
+import de.florianmichael.viaforge.provider.ViaForgeGameProfileFetcher;
+import net.minecraft.SharedConstants;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.User;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
+import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.provider.GameProfileFetcher;
+
+import java.io.File;
+import java.util.function.Supplier;
+
+@Mod("viaforge")
+public class ViaForge1171 implements VFPlatform {
+
+    public ViaForge1171() {
+        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::onInit);
+    }
+
+    public void onInit(FMLCommonSetupEvent event) {
+        ViaForgeCommon.init(this);
+    }
+
+    @Override
+    public int getGameVersion() {
+        return SharedConstants.getProtocolVersion();
+    }
+
+    @Override
+    public Supplier<Boolean> isSingleplayer() {
+        return () -> Minecraft.getInstance().hasSingleplayerServer();
+    }
+
+    @Override
+    public File getLeadingDirectory() {
+        return Minecraft.getInstance().gameDirectory;
+    }
+
+    @Override
+    public void joinServer(String serverId) throws Throwable {
+        final User session = Minecraft.getInstance().getUser();
+
+        Minecraft.getInstance().getMinecraftSessionService().joinServer(session.getGameProfile(), session.getAccessToken(), serverId);
+    }
+
+    @Override
+    public GameProfileFetcher getGameProfileFetcher() {
+        return new ViaForgeGameProfileFetcher();
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/gui/GuiProtocolSelector.java

@@ -0,0 +1,171 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.gui;
+
+import com.mojang.blaze3d.vertex.PoseStack;
+import com.viaversion.viaversion.api.Via;
+import com.viaversion.viaversion.util.DumpUtil;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.minecraft.ChatFormatting;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.components.Button;
+import net.minecraft.client.gui.components.ObjectSelectionList;
+import net.minecraft.client.gui.screens.Screen;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.TextComponent;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import net.raphimc.vialoader.util.ProtocolVersionList;
+import org.lwjgl.glfw.GLFW;
+
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+
+public class GuiProtocolSelector extends Screen {
+
+    public final Screen parent;
+    public final boolean simple;
+    public final FinishedCallback finishedCallback;
+
+    private SlotList list;
+
+    private String status;
+    private long time;
+
+    public static void open(final Minecraft minecraft) { // Bypass for some weird bytecode instructions errors in Forge
+        minecraft.setScreen(new GuiProtocolSelector(minecraft.screen));
+    }
+
+    public GuiProtocolSelector(final Screen parent) {
+        this(parent, false, (version, unused) -> {
+            // Default action is to set the target version and go back to the parent screen.
+            ViaForgeCommon.getManager().setTargetVersion(version);
+        });
+    }
+
+    public GuiProtocolSelector(final Screen parent, final boolean simple, final FinishedCallback finishedCallback) {
+        super(new TextComponent("ViaForge Protocol Selector"));
+        this.parent = parent;
+        this.simple = simple;
+        this.finishedCallback = finishedCallback;
+    }
+
+    @Override
+    public void init() {
+        super.init();
+        addRenderableWidget(new Button(5, height - 25, 20, 20, new TextComponent("<-"), b -> minecraft.setScreen(parent)));
+        if (!this.simple) {
+            addRenderableWidget(new Button(width - 105, 5, 100, 20, new TextComponent("Create dump"), b -> {
+                try {
+                    minecraft.keyboardHandler.setClipboard(DumpUtil.postDump(UUID.randomUUID()).get());
+                    setStatus(ChatFormatting.GREEN + "Dump created and copied to clipboard");
+                } catch (InterruptedException | ExecutionException e) {
+                    setStatus(ChatFormatting.RED + "Failed to create dump: " + e.getMessage());
+                }
+            }));
+            addRenderableWidget(new Button(width - 105, height - 25, 100, 20, new TextComponent("Reload configs"), b -> Via.getManager().getConfigurationProvider().reloadConfigs()));
+        }
+
+        addWidget(list = new SlotList(minecraft, width, height, 3 + 3 /* start offset */ + (font.lineHeight + 2) * 3 /* title is 2 */, height - 30, font.lineHeight + 2));
+    }
+
+    public void setStatus(final String status) {
+        this.status = status;
+        this.time = System.currentTimeMillis();
+    }
+
+    @Override
+    public boolean keyPressed(int keyCode, int scanCode, int actions) {
+        if (keyCode == GLFW.GLFW_KEY_ESCAPE) {
+            minecraft.setScreen(parent);
+        }
+        return super.keyPressed(keyCode, scanCode, actions);
+    }
+
+    @Override
+    public void render(PoseStack matrices, int p_230430_2_, int p_230430_3_, float p_230430_4_) {
+        if (System.currentTimeMillis() - this.time >= 10_000) {
+            this.status = null;
+        }
+
+        renderBackground(matrices);
+        this.list.render(matrices, p_230430_2_, p_230430_3_, p_230430_4_);
+
+        super.render(matrices, p_230430_2_, p_230430_3_, p_230430_4_);
+
+        matrices.pushPose();
+        matrices.scale(2.0F, 2.0F, 2.0F);
+        drawCenteredString(matrices, font, ChatFormatting.GOLD + "ViaForge", width / 4, 3, 16777215);
+        matrices.popPose();
+
+        drawCenteredString(matrices, font, "https://github.com/ViaVersion/ViaForge", width / 2, (font.lineHeight + 2) * 2 + 3, -1);
+        drawString(matrices, font, status != null ? status : "Discord: florianmichael", 3, 3, -1);
+    }
+
+    class SlotList extends ObjectSelectionList<SlotList.SlotEntry> {
+
+        public SlotList(Minecraft client, int width, int height, int top, int bottom, int slotHeight) {
+            super(client, width, height, top, bottom, slotHeight);
+
+            for (ProtocolVersion version : ProtocolVersionList.getProtocolsNewToOld()) {
+                addEntry(new SlotEntry(version));
+            }
+        }
+
+        public class SlotEntry extends ObjectSelectionList.Entry<SlotEntry> {
+
+            private final ProtocolVersion ProtocolVersion;
+
+            public SlotEntry(ProtocolVersion ProtocolVersion) {
+                this.ProtocolVersion = ProtocolVersion;
+            }
+
+            @Override
+            public boolean mouseClicked(double mouseX, double mouseY, int button) {
+                GuiProtocolSelector.this.finishedCallback.finished(ProtocolVersion, GuiProtocolSelector.this.parent);
+                return super.mouseClicked(mouseX, mouseY, button);
+            }
+
+            @Override
+            public Component getNarration() {
+                return new TextComponent(ProtocolVersion.getName());
+            }
+
+            @Override
+            public void render(PoseStack matrices, int p_93524_, int y, int p_93526_, int p_93527_, int p_93528_, int p_93529_, int p_93530_, boolean p_93531_, float p_93532_) {
+                final ProtocolVersion targetVersion = ViaForgeCommon.getManager().getTargetVersion();
+
+                String color;
+                if (targetVersion == ProtocolVersion) {
+                    color = GuiProtocolSelector.this.simple ? ChatFormatting.GOLD.toString() : ChatFormatting.GREEN.toString();
+                } else {
+                    color = GuiProtocolSelector.this.simple ? ChatFormatting.WHITE.toString() : ChatFormatting.DARK_RED.toString();
+                }
+
+                drawCenteredString(matrices, Minecraft.getInstance().font, color + ProtocolVersion.getName(), width / 2, y, -1);
+            }
+        }
+    }
+
+    public interface FinishedCallback {
+
+        void finished(final ProtocolVersion version, final Screen parent);
+
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/MixinDebugScreenOverlay.java

@@ -0,0 +1,45 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.minecraft.client.gui.components.DebugScreenOverlay;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.util.List;
+
+@Mixin(DebugScreenOverlay.class)
+public class MixinDebugScreenOverlay {
+
+    @Inject(method = "getSystemInformation", at = @At(value = "TAIL"))
+    public void addViaForgeVersion(CallbackInfoReturnable<List<String>> cir) {
+        final ViaForgeCommon common = ViaForgeCommon.getManager();
+        final ProtocolVersion version = ViaForgeCommon.getManager().getTargetVersion();
+
+        if (common.getConfig().isShowProtocolVersionInF3() && version != common.getNativeVersion() && !common.getPlatform().isSingleplayer().get()) {
+            cir.getReturnValue().add("");
+            cir.getReturnValue().add("ViaForge: " + version.toString());
+        }
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/MixinDirectJoinServerScreen.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.components.Button;
+import net.minecraft.client.gui.screens.DirectJoinServerScreen;
+import net.minecraft.client.gui.screens.Screen;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.TextComponent;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(DirectJoinServerScreen.class)
+public class MixinDirectJoinServerScreen extends Screen {
+
+    public MixinDirectJoinServerScreen(Component title) {
+        super(title);
+    }
+
+    @Inject(method = "init", at = @At("RETURN"))
+    public void hookViaForgeButton(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+        if (config.isShowDirectConnectButton()) {
+            final Pair<Integer, Integer> pos = config.getViaForgeButtonPosition().getPosition(this.width, this.height);
+
+            addRenderableWidget(new Button(pos.key(), pos.value(), 100, 20, new TextComponent("ViaForge"), b -> GuiProtocolSelector.open(minecraft)));
+        }
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/MixinEditServerScreen.java

@@ -0,0 +1,69 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.components.Button;
+import net.minecraft.client.gui.screens.EditServerScreen;
+import net.minecraft.client.gui.screens.Screen;
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.TextComponent;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(EditServerScreen.class)
+public class MixinEditServerScreen extends Screen {
+
+    @Shadow
+    @Final
+    private ServerData serverData;
+
+    public MixinEditServerScreen(Component title) {
+        super(title);
+    }
+
+    @Inject(method = "init", at = @At("RETURN"))
+    public void initGui(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+
+        if (config.isShowAddServerButton()) {
+            final Pair<Integer, Integer> pos = config.getAddServerScreenButtonPosition().getPosition(this.width, this.height);
+
+            final ProtocolVersion target = ((ExtendedServerData) serverData).viaForge$getVersion();
+            addRenderableWidget(new Button(pos.key(), pos.value(), 100, 20, new TextComponent(target != null ? target.getName() : "Set Version"), b -> {
+                minecraft.setScreen(new GuiProtocolSelector(this, true, (version, parent) -> {
+                    // Set version and go back to the parent screen.
+                    ((ExtendedServerData) serverData).viaForge$setVersion(version);
+                    minecraft.setScreen(parent);
+                }));
+            }));
+        }
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/MixinJoinMultiplayerScreen.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.components.Button;
+import net.minecraft.client.gui.screens.Screen;
+import net.minecraft.client.gui.screens.multiplayer.JoinMultiplayerScreen;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.TextComponent;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(JoinMultiplayerScreen.class)
+public class MixinJoinMultiplayerScreen extends Screen {
+
+    public MixinJoinMultiplayerScreen(Component title) {
+        super(title);
+    }
+
+    @Inject(method = "init", at = @At("RETURN"))
+    public void hookViaForgeButton(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+        if (config.isShowMainMenuButton()) {
+            final Pair<Integer, Integer> pos = config.getViaForgeButtonPosition().getPosition(this.width, this.height);
+
+            addRenderableWidget(new Button(pos.key(), pos.value(), 100, 20, new TextComponent("ViaForge"), buttons -> GuiProtocolSelector.open(minecraft)));
+        }
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/MixinServerData.java

@@ -0,0 +1,70 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.nbt.CompoundTag;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+@Mixin(ServerData.class)
+public class MixinServerData implements ExtendedServerData {
+
+    @Unique
+    private ProtocolVersion viaForge$version;
+
+    @Inject(method = "write", at = @At(value = "INVOKE", target = "Lnet/minecraft/nbt/CompoundTag;putString(Ljava/lang/String;Ljava/lang/String;)V", ordinal = 0), locals = LocalCapture.CAPTURE_FAILHARD)
+    public void saveVersion(CallbackInfoReturnable<CompoundTag> cir, CompoundTag compoundtag) {
+        if (viaForge$version != null) {
+            compoundtag.putString("viaForge$version", viaForge$version.getName());
+        }
+    }
+
+    @Inject(method = "read", at = @At(value = "TAIL"))
+    private static void getVersion(CompoundTag compoundnbt, CallbackInfoReturnable<ServerData> cir) {
+        if (compoundnbt.contains("viaForge$version")) {
+            ((ExtendedServerData) cir.getReturnValue()).viaForge$setVersion(ProtocolVersion.getClosest(compoundnbt.getString("viaForge$version")));
+        }
+    }
+
+    @Inject(method = "copyFrom", at = @At("HEAD"))
+    public void track(ServerData serverDataIn, CallbackInfo ci) {
+        if (serverDataIn instanceof ExtendedServerData) {
+            viaForge$version = ((ExtendedServerData) serverDataIn).viaForge$getVersion();
+        }
+    }
+
+    @Override
+    public ProtocolVersion viaForge$getVersion() {
+        return viaForge$version;
+    }
+
+    @Override
+    public void viaForge$setVersion(ProtocolVersion version) {
+        viaForge$version = version;
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/MixinTitleScreen.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin;
+
+import com.viaversion.viaversion.util.Pair;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.ViaForgeConfig;
+import de.florianmichael.viaforge.gui.GuiProtocolSelector;
+import net.minecraft.client.gui.components.Button;
+import net.minecraft.client.gui.screens.Screen;
+import net.minecraft.client.gui.screens.TitleScreen;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.TextComponent;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(TitleScreen.class)
+public class MixinTitleScreen extends Screen {
+
+    public MixinTitleScreen(Component title) {
+        super(title);
+    }
+
+    @Inject(method = "init", at = @At("RETURN"))
+    public void hookViaForgeButton(CallbackInfo ci) {
+        final ViaForgeConfig config = ViaForgeCommon.getManager().getConfig();
+        if (config.isShowMainMenuButton()) {
+            final Pair<Integer, Integer> pos = config.getViaForgeButtonPosition().getPosition(this.width, this.height);
+
+            addRenderableWidget(new Button(pos.key(), pos.value(), 100, 20, new TextComponent("ViaForge"), buttons -> GuiProtocolSelector.open(minecraft)));
+        }
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinClientHandshakePacketListenerImpl.java

@@ -0,0 +1,58 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.connect;
+
+import com.mojang.authlib.GameProfile;
+import com.mojang.authlib.exceptions.AuthenticationException;
+import com.mojang.authlib.minecraft.MinecraftSessionService;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
+import net.minecraft.client.multiplayer.ClientHandshakePacketListenerImpl;
+import net.minecraft.network.Connection;
+import net.raphimc.vialegacy.api.LegacyProtocolVersion;
+import net.raphimc.vialegacy.protocol.release.r1_6_4tor1_7_2_5.storage.ProtocolMetadataStorage;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@SuppressWarnings("DataFlowIssue")
+@Mixin(ClientHandshakePacketListenerImpl.class)
+public class MixinClientHandshakePacketListenerImpl {
+
+    @Shadow @Final private Connection connection;
+
+    @Redirect(method = "authenticateServer", at = @At(value = "INVOKE", target = "Lcom/mojang/authlib/minecraft/MinecraftSessionService;joinServer(Lcom/mojang/authlib/GameProfile;Ljava/lang/String;Ljava/lang/String;)V"))
+    public void onlyJoinServerIfPremium(MinecraftSessionService instance, GameProfile profile, String authenticationToken, String serverId) throws AuthenticationException {
+        final VFNetworkManager mixinConnection = (VFNetworkManager) connection;
+        if (mixinConnection.viaForge$getTrackedVersion().olderThanOrEqualTo(LegacyProtocolVersion.r1_6_4)) {
+            final UserConnection user = connection.channel().attr(ViaForgeCommon.LOCAL_VIA_USER).get();
+            if (user != null && user.has(ProtocolMetadataStorage.class) && !user.get(ProtocolMetadataStorage.class).authenticate) {
+                // We are in the 1.7 -> 1.6 protocol, so we need to skip the joinServer call
+                // if the server is in offline mode, due the packet changes <-> networking changes
+                // Minecraft's networking code is bad for us.
+                return;
+            }
+        }
+        instance.joinServer(profile, authenticationToken, serverId);
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinConnectScreen_1.java

@@ -0,0 +1,47 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import de.florianmichael.viaforge.common.platform.VersionTracker;
+import net.minecraft.client.Minecraft;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.net.InetSocketAddress;
+import java.util.Optional;
+
+@Mixin(targets = "net.minecraft.client.gui.screens.ConnectScreen$1")
+public class MixinConnectScreen_1 {
+
+    @Redirect(method = "run", at = @At(value = "INVOKE", target = "Ljava/util/Optional;get()Ljava/lang/Object;"))
+    public Object trackServerVersion(Optional instance) {
+        final InetSocketAddress address = (InetSocketAddress) instance.get();
+        ProtocolVersion version = ((ExtendedServerData) Minecraft.getInstance().getCurrentServer()).viaForge$getVersion();
+        if (version == null) {
+            version = ViaForgeCommon.getManager().getTargetVersion();
+        }
+        VersionTracker.storeServerProtocolVersion(address.getAddress(), version);
+        return address;
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinConnection.java

@@ -0,0 +1,102 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.VersionTracker;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
+import io.netty.channel.Channel;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import net.minecraft.network.CipherDecoder;
+import net.minecraft.network.CipherEncoder;
+import net.minecraft.network.Connection;
+import net.minecraft.util.LazyLoadedValue;
+import net.raphimc.vialegacy.api.LegacyProtocolVersion;
+import net.raphimc.vialoader.netty.VLLegacyPipeline;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+import javax.crypto.Cipher;
+import java.net.InetSocketAddress;
+
+@Mixin(Connection.class)
+public class MixinConnection implements VFNetworkManager {
+
+    @Shadow private Channel channel;
+
+    @Shadow private boolean encrypted;
+    @Unique
+    private Cipher viaForge$decryptionCipher;
+
+    @Unique
+    private ProtocolVersion viaForge$targetVersion;
+
+    @Inject(method = "setupCompression", at = @At("RETURN"))
+    public void reorderPipeline(int p_129485_, boolean p_182682_, CallbackInfo ci) {
+        ViaForgeCommon.getManager().reorderCompression(channel);
+    }
+
+    @Inject(method = "setEncryptionKey", at = @At("HEAD"), cancellable = true)
+    private void storeEncryptionCiphers(Cipher p_244777_1_, Cipher p_244777_2_, CallbackInfo ci) {
+        if (viaForge$targetVersion != null && viaForge$targetVersion.olderThanOrEqualTo(LegacyProtocolVersion.r1_6_4)) {
+            // Minecraft's encryption code is bad for us, we need to reorder the pipeline
+            ci.cancel();
+
+            // Minecraft 1.6.4 supports tile encryption which means the server can only enable one side of the encryption
+            // So we only enable the encryption side and later enable the decryption side if the 1.7 -> 1.6 protocol
+            // tells us to do, therefore we need to store the cipher instance.
+            this.viaForge$decryptionCipher = p_244777_1_;
+
+            // Enabling the encryption side
+            this.encrypted = true;
+            this.channel.pipeline().addBefore(VLLegacyPipeline.VIALEGACY_PRE_NETTY_LENGTH_REMOVER_NAME, "encrypt", new CipherEncoder(p_244777_2_));
+        }
+    }
+
+    @Inject(method = "connectToServer", at = @At(value = "INVOKE", target = "Lio/netty/bootstrap/Bootstrap;group(Lio/netty/channel/EventLoopGroup;)Lio/netty/bootstrap/AbstractBootstrap;"), locals = LocalCapture.CAPTURE_FAILHARD)
+    private static void setTargetVersion(InetSocketAddress p_178301_, boolean p_178302_, CallbackInfoReturnable<Connection> cir, Connection connection, Class<? extends SocketChannel> oclass, LazyLoadedValue<? extends EventLoopGroup> lazyloadedvalue) {
+        final VFNetworkManager mixinConnection = (VFNetworkManager) connection;
+        mixinConnection.viaForge$setTrackedVersion(VersionTracker.getServerProtocolVersion(p_178301_.getAddress()));
+    }
+
+    @Override
+    public void viaForge$setupPreNettyDecryption() {
+        // Enabling the decryption side for 1.6.4 if the 1.7 -> 1.6 protocol tells us to do
+        this.channel.pipeline().addBefore(VLLegacyPipeline.VIALEGACY_PRE_NETTY_LENGTH_REMOVER_NAME, "decrypt", new CipherDecoder(this.viaForge$decryptionCipher));
+    }
+
+    @Override
+    public ProtocolVersion viaForge$getTrackedVersion() {
+        return viaForge$targetVersion;
+    }
+
+    @Override
+    public void viaForge$setTrackedVersion(ProtocolVersion version) {
+        viaForge$targetVersion = version;
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinConnection_1.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
- * Copyright (C) 2021-2023 FlorianMichael/EnZaXD and contributors
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,24 +15,25 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package de.florianmichael.viaforge.mixin.impl;
 
+package de.florianmichael.viaforge.mixin.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.protocoltranslator.netty.VFNetworkManager;
 import io.netty.channel.Channel;
-import net.minecraft.network.NetworkManager;
-import net.raphimc.vialoader.netty.CompressionReorderEvent;
+import io.netty.channel.ChannelHandler;
 import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
-@Mixin(NetworkManager.class)
-public class MixinNetworkManager {
+@Mixin(targets = "net.minecraft.network.Connection$1")
+public class MixinConnection_1 {
 
-    @Shadow private Channel channel;
-
-    @Inject(method = "setCompressionThreshold", at = @At("RETURN"))
-    public void reOrderPipeline(int p_setCompressionTreshold_1_, CallbackInfo ci) {
-        channel.pipeline().fireUserEventTriggered(CompressionReorderEvent.INSTANCE);
+    @Inject(method = "initChannel", at = @At("TAIL"))
+    private void hookViaPipeline(Channel p_129552_, CallbackInfo ci) {
+        final ChannelHandler connection = p_129552_.pipeline().get("packet_handler");
+        ViaForgeCommon.getManager().inject(p_129552_, (VFNetworkManager) connection);
     }
+
 }

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/connect/MixinServerStatusPinger.java

@@ -0,0 +1,60 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.connect;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.gui.ExtendedServerData;
+import de.florianmichael.viaforge.common.platform.VersionTracker;
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.client.multiplayer.ServerStatusPinger;
+import net.minecraft.network.Connection;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.net.InetSocketAddress;
+
+@Mixin(ServerStatusPinger.class)
+public class MixinServerStatusPinger {
+
+    @Unique
+    private ServerData viaForge$serverData;
+
+    @Inject(method = "pingServer", at = @At("HEAD"))
+    public void trackServerData(ServerData server, Runnable p_147224_2_, CallbackInfo ci) {
+        viaForge$serverData = server;
+    }
+
+    @Redirect(method = "pingServer", at = @At(value = "INVOKE", target = "Lnet/minecraft/network/Connection;connectToServer(Ljava/net/InetSocketAddress;Z)Lnet/minecraft/network/Connection;"))
+    public Connection trackVersion(InetSocketAddress oclass, boolean lazyloadedvalue) {
+        ProtocolVersion version = ((ExtendedServerData) viaForge$serverData).viaForge$getVersion();
+        if (version == null) {
+            version = ViaForgeCommon.getManager().getTargetVersion();
+        }
+        VersionTracker.storeServerProtocolVersion(oclass.getAddress(), version);
+        viaForge$serverData = null;
+
+        return Connection.connectToServer(oclass, lazyloadedvalue);
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/mixin/fixes/MixinLocalPlayer.java

@@ -0,0 +1,56 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.mixin.fixes;
+
+import com.mojang.authlib.GameProfile;
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import net.minecraft.client.multiplayer.ClientLevel;
+import net.minecraft.client.player.AbstractClientPlayer;
+import net.minecraft.client.player.LocalPlayer;
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(LocalPlayer.class)
+public class MixinLocalPlayer extends AbstractClientPlayer {
+
+    @Shadow private boolean lastOnGround;
+
+    public MixinLocalPlayer(ClientLevel level, GameProfile profile) {
+        super(level, profile);
+    }
+
+    @Redirect(method = "sendPosition", at = @At(value = "FIELD", target = "Lnet/minecraft/client/player/LocalPlayer;lastOnGround:Z", ordinal = 0))
+    public boolean emulateIdlePacket(LocalPlayer instance) {
+        if (ViaForgeCommon.getManager().getTargetVersion().olderThanOrEqualTo(ProtocolVersion.v1_8)) {
+            // <= 1.8 spams the idle packet instead of only sending it when the ground state changes
+            // So we invert the original logic:
+            // if (prevOnGround != onGround) sendPacket
+            // To be like:
+            // if (!onGround != onGround) sendPacket
+            // Which is the same as:
+            // if (true) sendPacket
+            return !onGround;
+        }
+        return lastOnGround;
+    }
+
+}

viaforge-mc1171/src/main/java/de/florianmichael/viaforge/provider/ViaForgeGameProfileFetcher.java

@@ -0,0 +1,77 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge.provider;
+
+import com.mojang.authlib.Agent;
+import com.mojang.authlib.GameProfileRepository;
+import com.mojang.authlib.HttpAuthenticationService;
+import com.mojang.authlib.ProfileLookupCallback;
+import com.mojang.authlib.minecraft.MinecraftSessionService;
+import com.mojang.authlib.properties.Property;
+import com.mojang.authlib.yggdrasil.ProfileNotFoundException;
+import com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.model.GameProfile;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.provider.GameProfileFetcher;
+
+import java.net.Proxy;
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+
+public class ViaForgeGameProfileFetcher extends GameProfileFetcher {
+
+    public static final HttpAuthenticationService AUTHENTICATION_SERVICE = new YggdrasilAuthenticationService(Proxy.NO_PROXY, "");
+    public static final MinecraftSessionService SESSION_SERVICE = AUTHENTICATION_SERVICE.createMinecraftSessionService();
+    public static final GameProfileRepository GAME_PROFILE_REPOSITORY = AUTHENTICATION_SERVICE.createProfileRepository();
+
+    @Override
+    public UUID loadMojangUUID(String playerName) throws Exception {
+        final CompletableFuture<com.mojang.authlib.GameProfile> future = new CompletableFuture<>();
+        GAME_PROFILE_REPOSITORY.findProfilesByNames(new String[]{playerName}, Agent.MINECRAFT, new ProfileLookupCallback() {
+            @Override
+            public void onProfileLookupSucceeded(com.mojang.authlib.GameProfile profile) {
+                future.complete(profile);
+            }
+
+            @Override
+            public void onProfileLookupFailed(com.mojang.authlib.GameProfile profile, Exception exception) {
+                future.completeExceptionally(exception);
+            }
+        });
+        if (!future.isDone()) {
+            future.completeExceptionally(new ProfileNotFoundException());
+        }
+        return future.get().getId();
+    }
+
+    @Override
+    public GameProfile loadGameProfile(UUID uuid) throws Exception {
+        final com.mojang.authlib.GameProfile inProfile = new com.mojang.authlib.GameProfile(uuid, null);
+        final com.mojang.authlib.GameProfile mojangProfile = SESSION_SERVICE.fillProfileProperties(inProfile, true);
+        if (mojangProfile.equals(inProfile)) throw new ProfileNotFoundException();
+
+        final GameProfile gameProfile = new GameProfile(mojangProfile.getName(), mojangProfile.getId());
+        for (final java.util.Map.Entry<String, Property> entry : mojangProfile.getProperties().entries()) {
+            final Property prop = entry.getValue();
+            gameProfile.addProperty(new GameProfile.Property(prop.getName(), prop.getValue(), prop.getSignature()));
+        }
+
+        return gameProfile;
+    }
+
+}

viaforge-mc1171/src/main/resources/META-INF/mods.toml

@@ -0,0 +1,18 @@
+modLoader="javafml"
+loaderVersion="[37,)"
+
+license="GPL-3.0 license"
+issueTrackerURL="https://github.com/ViaVersion/ViaForge/issues"
+showAsResourcePack=false
+
+[[mods]]
+modId="viaforge"
+version="${version}"
+displayName="ViaForge"
+displayURL="https://github.com/FlorianMichael"
+logoFile="icon.png"
+credits="Github contributors"
+authors="FlorianMichael/EnZaXD"
+description='''
+  Client-side Implementation of the Via* projects for Minecraft Forge
+  '''

viaforge-mc1171/src/main/resources/mixins.viaforge-mc1171.json

@@ -0,0 +1,25 @@
+{
+  "required": true,
+  "minVersion": "0.7.5",
+  "compatibilityLevel": "JAVA_8",
+  "package": "de.florianmichael.viaforge.mixin",
+  "client": [
+    "connect.MixinClientHandshakePacketListenerImpl",
+    "connect.MixinConnection",
+    "connect.MixinConnection_1",
+    "MixinDebugScreenOverlay",
+    "MixinDirectJoinServerScreen",
+    "MixinEditServerScreen",
+    "MixinJoinMultiplayerScreen",
+    "MixinServerData",
+    "connect.MixinServerStatusPinger",
+    "MixinTitleScreen",
+    "fixes.MixinLocalPlayer",
+    "connect.MixinConnection_1",
+    "connect.MixinConnectScreen_1"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  },
+  "refmap": "mixins.viaforge-mc1171.refmap.json"
+}

viaforge-mc1182/build.gradle

@@ -0,0 +1,7 @@
+minecraft {
+    mappings channel: "official", version: "1.18.2"
+}
+
+dependencies {
+    minecraft "net.minecraftforge:forge:1.18.2-40.2.0"
+}

viaforge-mc1182/gradle.properties

@@ -0,0 +1,2 @@
+maven_name=viaforge-mc1182
+mc_version=1.18.2

viaforge-mc1182/src/main/java/de/florianmichael/viaforge/ViaForge1182.java

@@ -0,0 +1,73 @@
+/*
+ * This file is part of ViaForge - https://github.com/FlorianMichael/ViaForge
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viaforge;
+
+import de.florianmichael.viaforge.common.ViaForgeCommon;
+import de.florianmichael.viaforge.common.platform.VFPlatform;
+import de.florianmichael.viaforge.provider.ViaForgeGameProfileFetcher;
+import net.minecraft.SharedConstants;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.User;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
+import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
+import net.raphimc.vialegacy.protocol.release.r1_7_6_10tor1_8.provider.GameProfileFetcher;
+
+import java.io.File;
+import java.util.function.Supplier;
+
+@Mod("viaforge")
+public class ViaForge1182 implements VFPlatform {
+
+    public ViaForge1182() {
+        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::onInit);
+    }
+
+    private void onInit(FMLCommonSetupEvent event) {
+        ViaForgeCommon.init(this);
+    }
+
+    @Override
+    public int getGameVersion() {
+        return SharedConstants.getProtocolVersion();
+    }
+
+    @Override
+    public Supplier<Boolean> isSingleplayer() {
+        return () -> Minecraft.getInstance().hasSingleplayerServer();
+    }
+
+    @Override
+    public File getLeadingDirectory() {
+        return Minecraft.getInstance().gameDirectory;
+    }
+
+    @Override
+    public void joinServer(String serverId) throws Throwable {
+        final User session = Minecraft.getInstance().getUser();
+
+        Minecraft.getInstance().getMinecraftSessionService().joinServer(session.getGameProfile(), session.getAccessToken(), serverId);
+    }
+
+    @Override
+    public GameProfileFetcher getGameProfileFetcher() {
+        return new ViaForgeGameProfileFetcher();
+    }
+
+}