Initial commit

.gitignore

@@ -0,0 +1,40 @@
+# gradle
+
+.gradle/
+build/
+out/
+classes/
+
+# eclipse
+
+*.launch
+
+# idea
+
+.idea/
+*.iml
+*.ipr
+*.iws
+
+# vscode
+
+.settings/
+.vscode/
+bin/
+.classpath
+.project
+
+# macos
+
+*.DS_Store
+
+# fabric
+
+run/
+
+# java
+
+hs_err_*.log
+replay_*.log
+*.hprof
+*.jfr

LICENSE

@@ -0,0 +1,11 @@
+DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+Version 2, December 2004
+
+Everyone is permitted to copy and distribute verbatim or modified
+copies of this license document, and changing it is allowed as long
+as the name is changed.
+
+DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. You just DO WHAT THE FUCK YOU WANT TO.

README.md

@@ -0,0 +1,29 @@
+# 介绍
+本模组意在修复一个2021年11月26号被报告但一直未修复的Bug  
+[漏洞追踪器链接](https://bugs.mojang.com/browse/MC-242809)
+
+# 为什么会有这个模组
+前几个月吧，我想玩一个服务器。从那个服务器的官网把地址复制下来，粘贴到“服务器地址”中保存之后，居然出现了“未知的主机”。  
+莫慌，这显然是DNS没查找到对应的地址，先Ping一下。  
+Ping能找到域名对应的地址，然后我有怀疑是长城又在搞什么，用站长之家的工具测了一下，所有的结果和我的都是一样的啊。  
+这就比较奇怪了。  
+然后在折腾了一段时间之后，我发现了问题。  
+**我复制到的服务器地址的末尾，有一个空格。**  
+这就很难绷了啊，再继续折腾了一段时间，确认问题能够稳定复现之后，我去漏洞追踪器提交了一个Bug。  
+结果您猜怎么着？  
+![漏洞追踪器上提的问题](./图片/Snipaste_2023-10-18_15-22-39.png)  
+![下面的评论](./图片/Snipaste_2023-10-18_15-22-47.png)  
+![更早的一个问题报告](./图片/Snipaste_2023-10-18_15-22-57.png)  
+我英语完全不行，就没继续说下去了，问题描述都是用翻译写的。  
+但是吧，我打心里觉得这事多少有点离谱。  
+既然你的地址是String类，那在后面调用一下trim方法很难吗？  
+而且，我作为一个玩家，你跟我说，“这都是你自己不小心，这根本就不能算是个Bug“，我是不能接受的。  
+**所以，有了这个模组。**  
+
+# 已知问题
+- 必须在服务器MOTD被加载出来之后，才能使用刷新按钮，不然被弄掉的空格自己又会回来，我也不知道为什么。
+
+如果有谁愿意帮我把Bug修了，欢迎提交PR╰(*°▽°*)╯
+
+# 开源许可
+我用的是比MIT更激进的WTFPL

build.gradle

@@ -0,0 +1,91 @@
+plugins {
+	id 'fabric-loom' version '1.4-SNAPSHOT'
+	id 'maven-publish'
+}
+
+version = project.mod_version
+group = project.maven_group
+
+base {
+	archivesName = project.archives_base_name
+}
+
+repositories {
+	// Add repositories to retrieve artifacts from in here.
+	// You should only use this when depending on other mods because
+	// Loom adds the essential maven repositories to download Minecraft and libraries from automatically.
+	// See https://docs.gradle.org/current/userguide/declaring_repositories.html
+	// for more information about repositories.
+}
+
+loom {
+    splitEnvironmentSourceSets()
+
+	mods {
+		"twd-sasf" {
+			sourceSet sourceSets.main
+			sourceSet sourceSets.client
+		}
+	}
+
+}
+
+dependencies {
+	// To change the versions see the gradle.properties file
+	minecraft "com.mojang:minecraft:${project.minecraft_version}"
+	mappings "net.fabricmc:yarn:${project.yarn_mappings}:v2"
+	modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
+
+	// Fabric API. This is technically optional, but you probably want it anyway.
+	// modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
+	
+	// Uncomment the following line to enable the deprecated Fabric API modules. 
+	// These are included in the Fabric API production distribution and allow you to update your mod to the latest modules at a later more convenient time.
+
+	// modImplementation "net.fabricmc.fabric-api:fabric-api-deprecated:${project.fabric_version}"
+}
+
+processResources {
+	inputs.property "version", project.version
+
+	filesMatching("fabric.mod.json") {
+		expand "version": project.version
+	}
+}
+
+tasks.withType(JavaCompile).configureEach {
+	it.options.release = 17
+}
+
+java {
+	// Loom will automatically attach sourcesJar to a RemapSourcesJar task and to the "build" task
+	// if it is present.
+	// If you remove this line, sources will not be generated.
+	withSourcesJar()
+
+	sourceCompatibility = JavaVersion.VERSION_17
+	targetCompatibility = JavaVersion.VERSION_17
+}
+
+jar {
+	from("LICENSE") {
+		rename { "${it}_${project.base.archivesName.get()}"}
+	}
+}
+
+// configure the maven publication
+publishing {
+	publications {
+		mavenJava(MavenPublication) {
+			from components.java
+		}
+	}
+
+	// See https://docs.gradle.org/current/userguide/publishing_maven.html for information on how to set up publishing.
+	repositories {
+		// Add repositories to publish to here.
+		// Notice: This block does NOT have the same function as the block in the top level.
+		// The repositories here will be used for publishing your artifact, not for
+		// retrieving dependencies.
+	}
+}

gradle.properties

@@ -0,0 +1,23 @@
+# Done to increase the memory available to gradle.
+org.gradle.jvmargs=-Xmx1G
+org.gradle.parallel=true
+
+# Fabric Properties
+# check these on https://fabricmc.net/develop
+minecraft_version=1.20.1
+yarn_mappings=1.20.1+build.10
+loader_version=0.14.23
+
+# Mod Properties
+mod_version=0.1.0
+maven_group=xyz.thewhitedog9487
+archives_base_name=twd-sasf
+
+# Dependencies
+fabric_version=0.90.0+1.20.1
+
+loom_libraries_base=https://bmclapi2.bangbang93.com/maven/
+loom_resources_base=https://bmclapi2.bangbang93.com/assets/
+loom_version_manifests=https://bmclapi2.bangbang93.com/mc/game/version_manifest.json
+loom_experimental_versions=https://maven.fabricmc.net/net/minecraft/experimental_versions.json
+loom_fabric_repository=https://repository.hanbings.io/proxy/

gradlew

@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# 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.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       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 «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       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/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# 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, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# 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.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+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.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+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.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+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!
+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
+
+:omega

settings.gradle

@@ -0,0 +1,11 @@
+pluginManagement {
+	repositories {
+		maven {
+			name = 'Fabric'
+			url = 'https://maven.aliyun.com/repository/gradle-plugin'
+			url = 'https://maven.fabricmc.net/'
+		}
+		mavenCentral()
+		gradlePluginPortal()
+	}
+}

src/client/java/xyz/thewhitedog9487/ServerAddressSpaceFixClient.java

@@ -0,0 +1,10 @@
+package xyz.thewhitedog9487;
+
+import net.fabricmc.api.ClientModInitializer;
+
+public class ServerAddressSpaceFixClient implements ClientModInitializer {
+	@Override
+	public void onInitializeClient() {
+		// This entrypoint is suitable for setting up client-specific logic, such as rendering.
+	}
+}

src/client/java/xyz/thewhitedog9487/mixin/client/AddServerScreenAccessor.java

@@ -0,0 +1,15 @@
+package xyz.thewhitedog9487.mixin.client;
+
+import net.minecraft.client.gui.widget.TextFieldWidget;
+import net.minecraft.client.network.ServerInfo;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(net.minecraft.client.gui.screen.AddServerScreen.class)
+public interface AddServerScreenAccessor {
+    @Accessor("server")
+    ServerInfo Mixin_GetServer();
+
+    @Accessor("addressField")
+    TextFieldWidget Mixin_GetAddressField();
+}

src/client/java/xyz/thewhitedog9487/mixin/client/DirectConnectScreenAccessor.java

@@ -0,0 +1,15 @@
+package xyz.thewhitedog9487.mixin.client;
+
+import net.minecraft.client.gui.widget.TextFieldWidget;
+import net.minecraft.client.network.ServerInfo;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(net.minecraft.client.gui.screen.DirectConnectScreen.class)
+public interface DirectConnectScreenAccessor {
+    @Accessor("serverEntry")
+    ServerInfo Mixin_GetServerEntry();
+
+    @Accessor("addressField")
+    TextFieldWidget Mixin_GetAddressField();
+}

src/client/java/xyz/thewhitedog9487/mixin/client/ExampleClientMixin.java

@@ -0,0 +1,15 @@
+package xyz.thewhitedog9487.mixin.client;
+
+import net.minecraft.client.MinecraftClient;
+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(MinecraftClient.class)
+public class ExampleClientMixin {
+	@Inject(at = @At("HEAD"), method = "run")
+	private void run(CallbackInfo info) {
+		// This code is injected into the start of MinecraftClient.run()V
+	}
+}

src/client/java/xyz/thewhitedog9487/mixin/client/MixinAddServerScreen.java

@@ -0,0 +1,22 @@
+package xyz.thewhitedog9487.mixin.client;
+
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.text.Text;
+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(net.minecraft.client.gui.screen.AddServerScreen.class)
+public class MixinAddServerScreen extends Screen {
+    protected MixinAddServerScreen(Text title) {
+        super(title);}
+
+    @Inject(method = "addAndClose()V", at = @At("RETURN"))
+    private void addAndClose(CallbackInfo ci){
+        var Server = ((AddServerScreenAccessor) this).Mixin_GetServer();
+        var Address = ((AddServerScreenAccessor) this).Mixin_GetAddressField().getText();
+        // this.server.address = this.addressField.getText();
+        Server.address = Address.trim();}
+
+}

src/client/java/xyz/thewhitedog9487/mixin/client/MixinDirectConnectScreen.java

@@ -0,0 +1,22 @@
+package xyz.thewhitedog9487.mixin.client;
+
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.text.Text;
+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(net.minecraft.client.gui.screen.DirectConnectScreen.class)
+public class MixinDirectConnectScreen extends Screen {
+    protected MixinDirectConnectScreen(Text title) {
+        super(title);}
+
+    @Inject(method = "saveAndClose()V", at = @At("RETURN"))
+    private void addAndClose(CallbackInfo ci){
+    var ServerEntry = ((DirectConnectScreenAccessor) this).Mixin_GetServerEntry();
+    var Address = ((DirectConnectScreenAccessor) this).Mixin_GetAddressField().getText();
+    // this.serverEntry.address = this.addressField.getText();
+    ServerEntry.address = Address.trim();}
+
+}

src/client/resources/twd-sasf.client.mixins.json

@@ -0,0 +1,14 @@
+{
+  "required": true,
+  "package": "xyz.thewhitedog9487.mixin.client",
+  "compatibilityLevel": "JAVA_17",
+  "client": [
+    "AddServerScreenAccessor",
+    "ExampleClientMixin",
+    "MixinAddServerScreen",
+    "MixinDirectConnectScreen"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+	}
+}

src/main/java/xyz/thewhitedog9487/ServerAddressSpaceFix.java

@@ -0,0 +1,22 @@
+package xyz.thewhitedog9487;
+
+import net.fabricmc.api.ModInitializer;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ServerAddressSpaceFix implements ModInitializer {
+	// This logger is used to write text to the console and the log file.
+	// It is considered best practice to use your mod id as the logger's name.
+	// That way, it's clear which mod wrote info, warnings, and errors.
+    public static final Logger LOGGER = LoggerFactory.getLogger("twd-sasf");
+
+	@Override
+	public void onInitialize() {
+		// This code runs as soon as Minecraft is in a mod-load-ready state.
+		// However, some things (like resources) may still be uninitialized.
+		// Proceed with mild caution.
+
+		LOGGER.info("Hello Fabric world!");
+	}
+}

src/main/java/xyz/thewhitedog9487/mixin/ExampleMixin.java

@@ -0,0 +1,15 @@
+package xyz.thewhitedog9487.mixin;
+
+import net.minecraft.server.MinecraftServer;
+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(MinecraftServer.class)
+public class ExampleMixin {
+	@Inject(at = @At("HEAD"), method = "loadWorld")
+	private void init(CallbackInfo info) {
+		// This code is injected into the start of MinecraftServer.loadWorld()V
+	}
+}

src/main/resources/assets/twd-sasf/lang/en_us.json

@@ -0,0 +1,6 @@
+{
+  "modmenu.nameTranslation.twd-sasf": "ServerAddressSpaceFix",
+  "modmenu.descriptionTranslation.twd-sasf": "Fixed the \"unknown host\" bug caused by the server address containing spaces at the beginning and end of the server address when adding a server or connecting directly",
+  "twd-sasf.bilibili": "Bilibili",
+  "twd-sasf.blog": "Blog"
+}

src/main/resources/assets/twd-sasf/lang/zh_cn.json

@@ -0,0 +1,6 @@
+{
+  "modmenu.nameTranslation.twd-sasf": "服务器地址首尾空格修复",
+  "modmenu.descriptionTranslation.twd-sasf": "修复添加服务器或直接连接时，服务器地址首尾包含空格导致的“未知的主机”Bug",
+  "twd-sasf.bilibili": "哔哩哔哩主页",
+  "twd-sasf.blog": "TheWhiteDog9487的博客"
+}

src/main/resources/fabric.mod.json

@@ -0,0 +1,47 @@
+{
+	"schemaVersion": 1,
+	"id": "twd-sasf",
+	"version": "${version}",
+	"name": "ServerAddressSpaceFix",
+	"description": "服务器地址首尾空格修复",
+	"authors": [
+		"TheWhiteDog9487"
+	],
+	"contact": {
+		"homepage": "https://www.thewhitedog9487.xyz/",
+		"sources": "https://github.com/TheWhiteDog9487/ServerAddressSpaceFix",
+		"issues": "https://github.com/TheWhiteDog9487/ServerAddressSpaceFix/issues"
+	},
+	"license": "WTFPL",
+	"icon": "assets/twd-sasf/icon.png",
+	"environment": "client",
+	"entrypoints": {
+		"main": [
+			"xyz.thewhitedog9487.ServerAddressSpaceFix"
+		],
+		"client": [
+			"xyz.thewhitedog9487.ServerAddressSpaceFixClient"
+		]
+	},
+	"mixins": [
+		"twd-sasf.mixins.json",
+		{
+			"config": "twd-sasf.client.mixins.json",
+			"environment": "client"
+		}
+	],
+	"depends": {
+		"fabricloader": ">=0.14.23",
+		"minecraft": "~1.20.1",
+		"java": ">=17"
+	},
+	"suggests": {
+		"another-mod": "*"
+	},
+	"custom": {
+		"modmenu": {
+			"links": {
+				"twd-sasf.bilibili": "https://space.bilibili.com/401746666",
+				"twd-sasf.blog": "www.thewhitedog9487.xyz"},
+			"update_checker": true}}
+}

src/main/resources/twd-sasf.mixins.json

@@ -0,0 +1,11 @@
+{
+	"required": true,
+	"package": "xyz.thewhitedog9487.mixin",
+	"compatibilityLevel": "JAVA_17",
+	"mixins": [
+		"ExampleMixin"
+	],
+	"injectors": {
+		"defaultRequire": 1
+	}
+}