commit 16fd49be3567e7677b82d2a3ea60f014e2373a35 Author: iceBear67 Date: Sun Jul 7 19:01:30 2024 +0800 tt diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..3c37caf --- /dev/null +++ b/.gitignore @@ -0,0 +1,118 @@ +# User-specific stuff +.idea/ + +*.iml +*.ipr +*.iws + +# IntelliJ +out/ +# mpeltonen/sbt-idea plugin +.idea_modules/ + +# JIRA plugin +atlassian-ide-plugin.xml + +# Compiled class file +*.class + +# Log file +*.log + +# BlueJ files +*.ctxt + +# Package Files # +*.jar +*.war +*.nar +*.ear +*.zip +*.tar.gz +*.rar + +# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml +hs_err_pid* + +*~ + +# temporary files which can be created if a process still has a handle open of a deleted file +.fuse_hidden* + +# KDE directory preferences +.directory + +# Linux trash folder which might appear on any partition or disk +.Trash-* + +# .nfs files are created when an open file is removed but is still being accessed +.nfs* + +# General +.DS_Store +.AppleDouble +.LSOverride + +# Icon must end with two \r +Icon + +# Thumbnails +._* + +# Files that might appear in the root of a volume +.DocumentRevisions-V100 +.fseventsd +.Spotlight-V100 +.TemporaryItems +.Trashes +.VolumeIcon.icns +.com.apple.timemachine.donotpresent + +# Directories potentially created on remote AFP share +.AppleDB +.AppleDesktop +Network Trash Folder +Temporary Items +.apdisk + +# Windows thumbnail cache files +Thumbs.db +Thumbs.db:encryptable +ehthumbs.db +ehthumbs_vista.db + +# Dump file +*.stackdump + +# Folder config file +[Dd]esktop.ini + +# Recycle Bin used on file shares +$RECYCLE.BIN/ + +# Windows Installer files +*.cab +*.msi +*.msix +*.msm +*.msp + +# Windows shortcuts +*.lnk + +.gradle +build/ + +# Ignore Gradle GUI config +gradle-app.setting + +# Cache of project +.gradletasknamecache + +**/build/ + +# Common working directory +run/ + +# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored) +!gradle-wrapper.jar diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..43bfb87 --- /dev/null +++ b/LICENSE @@ -0,0 +1,692 @@ +Copyright (c) 2024 + +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. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + {one line to give the program's name and a brief idea of what it does.} + Copyright (C) {year} {name of author} + + 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 . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + {project} Copyright (C) {year} {fullname} + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. + diff --git a/build.gradle b/build.gradle new file mode 100644 index 0000000..87968dd --- /dev/null +++ b/build.gradle @@ -0,0 +1,92 @@ +plugins { + id 'fabric-loom' version '1.6-SNAPSHOT' + id 'maven-publish' + id("io.freefair.lombok") version "8.6" +} + +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. + maven { url 'https://maven.wispforest.io/releases/' } +} + +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:${project.fabric_version}" + implementation 'com.maxmind.geoip2:geoip2:4.2.0' +} + +processResources { + inputs.property "version", project.version + inputs.property "minecraft_version", project.minecraft_version + inputs.property "loader_version", project.loader_version + filteringCharset "UTF-8" + + filesMatching("fabric.mod.json") { + expand "version": project.version, + "minecraft_version": project.minecraft_version, + "loader_version": project.loader_version + } +} + +def targetJavaVersion = 21 +tasks.withType(JavaCompile).configureEach { + // ensure that the encoding is set to UTF-8, no matter what the system default is + // this fixes some edge cases with special characters not displaying correctly + // see http://yodaconditions.net/blog/fix-for-java-file-encoding-problems-with-gradle.html + // If Javadoc is generated, this must be specified in that task too. + it.options.encoding = "UTF-8" + if (targetJavaVersion >= 10 || JavaVersion.current().isJava10Compatible()) { + it.options.release.set(targetJavaVersion) + } +} + +java { + def javaVersion = JavaVersion.toVersion(targetJavaVersion) + if (JavaVersion.current() < javaVersion) { + toolchain.languageVersion = JavaLanguageVersion.of(targetJavaVersion) + } + // Loom will automatically attach sourcesJar to a RemapSourcesJar task and to the "build" task + // if it is present. + // If you remove this line, sources will not be generated. + withSourcesJar() +} + +jar { + from("LICENSE") { + rename { "${it}_${project.archivesBaseName}" } + } +} + +// configure the maven publication +publishing { + publications { + create("mavenJava", MavenPublication) { + artifactId = project.archives_base_name + 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. + } +} diff --git a/gradle.properties b/gradle.properties new file mode 100644 index 0000000..5085427 --- /dev/null +++ b/gradle.properties @@ -0,0 +1,19 @@ +# Done to increase the memory available to gradle. +org.gradle.jvmargs=-Xmx1G + +# Fabric Properties + # check these on https://modmuss50.me/fabric.html + minecraft_version=1.21 + yarn_mappings=1.21+build.7 + loader_version=0.15.11 + +# Mod Properties + mod_version = 0.1.0 + maven_group = io.ib67 + archives_base_name = sfcraft + +# Dependencies + # check this on https://modmuss50.me/fabric.html + fabric_version=0.100.4+1.21 + owo_version=0.12.10+1.21 + diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..e096528 --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1 @@ +distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 0000000..f91a4fe --- /dev/null +++ b/settings.gradle @@ -0,0 +1,9 @@ +pluginManagement { + repositories { + maven { + name = 'Fabric' + url = 'https://maven.fabricmc.net/' + } + gradlePluginPortal() + } +} diff --git a/src/main/java/io/ib67/sfcraft/Commands.java b/src/main/java/io/ib67/sfcraft/Commands.java new file mode 100644 index 0000000..a77a2b2 --- /dev/null +++ b/src/main/java/io/ib67/sfcraft/Commands.java @@ -0,0 +1,46 @@ +package io.ib67.sfcraft; + +import io.ib67.sfcraft.access.AccessController; +import lombok.RequiredArgsConstructor; +import net.minecraft.entity.player.PlayerEntity; +import net.minecraft.server.command.ServerCommandSource; +import net.minecraft.text.Text; +import net.minecraft.text.TextColor; +import net.minecraft.util.StringHelper; +import org.jetbrains.annotations.Nullable; + +import java.net.InetSocketAddress; + +public final class Commands { + @RequiredArgsConstructor + static class AccessControl { + private final AccessController controller; + + public void grantAccess(ServerCommandSource sender, String name, @Nullable String ip) { + if (!sender.hasPermissionLevel(2)) { + sender.sendMessage(Text.of("Permission denied.")); + return; + } + if (!StringHelper.isValidPlayerName(name)) { + sender.sendMessage(Text.of("Invalid player name.")); + return; + } + if (ip == null) { + sender.sendMessage(Text.of("You're granting ANY access to player " + name + "!")); + controller.grantAccess(name, null); + } else { + controller.grantAccess(name, ip); + } + sender.sendMessage(Text.of(name + ": Access granted.")); + } + + public void revokeAccess(ServerCommandSource sender, String name) { + controller.revokeAccess(name); + sender.sendMessage(Text.of(name + ": Permission revoked.")); + } + + public void listAccesses(ServerCommandSource sender) { + controller.getEntries().forEach(it -> sender.sendMessage(Text.of(it.name() + ": " + (it.condition() == null ? "ANY" : it.condition())))); + } + } +} diff --git a/src/main/java/io/ib67/sfcraft/Listener.java b/src/main/java/io/ib67/sfcraft/Listener.java new file mode 100644 index 0000000..8e7e7f8 --- /dev/null +++ b/src/main/java/io/ib67/sfcraft/Listener.java @@ -0,0 +1,41 @@ +package io.ib67.sfcraft; + +import com.maxmind.geoip2.record.City; +import lombok.SneakyThrows; +import net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents; +import net.minecraft.network.ClientConnection; +import net.minecraft.network.DisconnectionInfo; +import net.minecraft.text.Text; + +import java.net.InetSocketAddress; +import java.time.ZonedDateTime; +import java.util.function.Consumer; + +public class Listener { + private final SFCraft core; + + public Listener(SFCraft core) { + this.core = core; + } + + @SneakyThrows + public boolean onPlayerLogin(String currentPlayer, ClientConnection connection, Consumer disconnect) { + if (connection.getAddress() instanceof InetSocketAddress address) { + var clock = core.getGeoIPService().clockOf(address.getAddress()); + var hourOfDay = ZonedDateTime.now(clock).getHour(); + var startHr = SFCraft.getInstance().getConfig().maintainceStartHour; + var endHr = SFCraft.getInstance().getConfig().maintainceEndHour; + if (startHr > hourOfDay && hourOfDay > endHr) { + final var msg = "服务器尚未开放\n服务器维护时间： %1$d~%2$d\n你的下午不值得浪费在游戏上，晚点再来吧！"; + disconnect.accept(Text.of(String.format(msg, startHr, endHr))); + return false; + } + var canJoin = core.getAccessController().checkAccess(currentPlayer, address.getAddress().getHostAddress()); + if (!canJoin) { + final var msg = ""; + disconnect.accept(Text.of(String.format(msg, startHr, endHr))); + } + } + return true; + } +} diff --git a/src/main/java/io/ib67/sfcraft/SFConfig.java b/src/main/java/io/ib67/sfcraft/SFConfig.java new file mode 100644 index 0000000..eb30902 --- /dev/null +++ b/src/main/java/io/ib67/sfcraft/SFConfig.java @@ -0,0 +1,6 @@ +package io.ib67.sfcraft; + +public class SFConfig { + public int maintainceStartHour = 17; + public int maintainceEndHour = 1; +} diff --git a/src/main/java/io/ib67/sfcraft/SFCraft.java b/src/main/java/io/ib67/sfcraft/SFCraft.java new file mode 100644 index 0000000..2c81532 --- /dev/null +++ b/src/main/java/io/ib67/sfcraft/SFCraft.java @@ -0,0 +1,113 @@ +package io.ib67.sfcraft; + +import com.google.gson.Gson; +import com.mojang.brigadier.CommandDispatcher; +import com.mojang.brigadier.arguments.StringArgumentType; +import com.mojang.brigadier.builder.LiteralArgumentBuilder; +import com.mojang.brigadier.builder.RequiredArgumentBuilder; +import io.ib67.sfcraft.access.AccessController; +import io.ib67.sfcraft.access.GrantedEntry; +import io.ib67.sfcraft.access.impl.SimpleAccessController; +import io.ib67.sfcraft.geoip.GeoIPService; +import lombok.Getter; +import lombok.SneakyThrows; +import net.fabricmc.api.ModInitializer; +import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback; +import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents; +import net.minecraft.command.CommandRegistryAccess; +import net.minecraft.server.MinecraftServer; +import net.minecraft.server.command.CommandManager; +import net.minecraft.server.command.ServerCommandSource; + +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.List; +import java.util.stream.Collectors; + +public class SFCraft implements ModInitializer { + @Getter + private SFConfig config; + @Getter + private static Listener listener; + @Getter + private static SFCraft instance; + @Getter + private GeoIPService geoIPService; + @Getter + private AccessController accessController; + @Getter + private Path root; + + @Override + @SneakyThrows + public void onInitialize() { + instance = this; + listener = new Listener(this); + root = Path.of("sfcraft"); + if (Files.notExists(root)) { + Files.createDirectory(root); + } + loadConfig(); + geoIPService = new GeoIPService(); + accessController = loadAccessController(); + CommandRegistrationCallback.EVENT.register(this::registerCommands); + } + + @SneakyThrows + private void loadConfig() { + var gson = new Gson(); + var cfgFile = root.resolve("config.json"); + if (Files.notExists(cfgFile)) { + Files.writeString(cfgFile, gson.toJson(new SFConfig())); + config = new SFConfig(); + return; + } + config = gson.fromJson(Files.readString(cfgFile), SFConfig.class); + } + + @SneakyThrows + private AccessController loadAccessController() { + var file = root.resolve("access.txt"); + ServerLifecycleEvents.SERVER_STOPPING.register(this::saveAccessRules); + if (Files.notExists(file)) { + return new SimpleAccessController(List.of()); + } + return new SimpleAccessController(Files.readAllLines(file).stream().map(it -> it.split(":")).filter(it -> it.length == 2).map(it -> new GrantedEntry(it[0].trim(), it[1].trim())).toList()); + } + + @SneakyThrows + private void saveAccessRules(MinecraftServer minecraftServer) { + var file = root.resolve("access.txt"); + Files.writeString(file, accessController.getEntries().stream().map(i -> i.name() + ":" + i.condition()).collect(Collectors.joining("\n"))); + } + + private void registerCommands(CommandDispatcher dispatcher, CommandRegistryAccess commandRegistryAccess, CommandManager.RegistrationEnvironment registrationEnvironment) { + var accessControl = new Commands.AccessControl(accessController); + dispatcher.register( + LiteralArgumentBuilder.literal("access") + .requires(it -> it.hasPermissionLevel(2)) + .then(LiteralArgumentBuilder.literal("grant") + .then(RequiredArgumentBuilder.argument("name", StringArgumentType.string()).executes(it -> { + accessControl.grantAccess(it.getSource(), it.getArgument("name", String.class), null); + return 0; + }).then(RequiredArgumentBuilder.argument("ip", StringArgumentType.string()).executes(it -> { + accessControl.grantAccess(it.getSource(), it.getArgument("name", String.class), it.getArgument("ip", String.class)); + return 0; + })))) + .then(LiteralArgumentBuilder.literal("list") + .executes(it -> { + accessControl.listAccesses(it.getSource()); + return 0; + }) + ).then(LiteralArgumentBuilder.literal("revoke") + .then(RequiredArgumentBuilder.argument("name", StringArgumentType.string()) + .executes(it -> { + accessControl.revokeAccess(it.getSource(), it.getArgument("name", String.class)); + return 0; + })) + ) + + ); + } + +} diff --git a/src/main/java/io/ib67/sfcraft/access/AccessController.java b/src/main/java/io/ib67/sfcraft/access/AccessController.java new file mode 100644 index 0000000..7969d93 --- /dev/null +++ b/src/main/java/io/ib67/sfcraft/access/AccessController.java @@ -0,0 +1,18 @@ +package io.ib67.sfcraft.access; + +import com.mojang.authlib.GameProfile; + +import java.net.InetSocketAddress; +import java.net.SocketAddress; +import java.util.Collection; +import java.util.List; + +public interface AccessController { + boolean checkAccess(String name, String address); + + void grantAccess(String name, String condition); + + void revokeAccess(String name); + + Collection getEntries(); +} diff --git a/src/main/java/io/ib67/sfcraft/access/GrantedEntry.java b/src/main/java/io/ib67/sfcraft/access/GrantedEntry.java new file mode 100644 index 0000000..c632f9c --- /dev/null +++ b/src/main/java/io/ib67/sfcraft/access/GrantedEntry.java @@ -0,0 +1,8 @@ +package io.ib67.sfcraft.access; + +import com.mojang.authlib.GameProfile; + +import java.net.InetSocketAddress; + +public record GrantedEntry(String name, String condition) { +} diff --git a/src/main/java/io/ib67/sfcraft/access/impl/SimpleAccessController.java b/src/main/java/io/ib67/sfcraft/access/impl/SimpleAccessController.java new file mode 100644 index 0000000..afeb233 --- /dev/null +++ b/src/main/java/io/ib67/sfcraft/access/impl/SimpleAccessController.java @@ -0,0 +1,42 @@ +package io.ib67.sfcraft.access.impl; + +import com.google.common.collect.Multimap; +import com.google.common.collect.Multimaps; +import io.ib67.sfcraft.access.AccessController; +import io.ib67.sfcraft.access.GrantedEntry; + +import java.util.Collection; +import java.util.HashMap; +import java.util.List; +import java.util.ArrayList; +import java.util.stream.Collectors; + +public class SimpleAccessController implements AccessController { + private final Multimap whitelist = Multimaps.newListMultimap(new HashMap<>(), ArrayList::new); + + public SimpleAccessController(List entries) { + entries.forEach(i -> whitelist.put(i.name(), i.condition())); + } + + @Override + public boolean checkAccess(String profile, String address) { + return whitelist.containsEntry(profile, address) || whitelist.containsEntry(profile, null); + } + + @Override + public void grantAccess(String profile, String condition) { + whitelist.put(profile, condition); + } + + @Override + public void revokeAccess(String profile) { + whitelist.removeAll(profile); + } + + @Override + public Collection getEntries() { + return whitelist.asMap().entrySet() + .stream().flatMap(it -> it.getValue().stream().map(i -> new GrantedEntry(it.getKey(), i))) + .collect(Collectors.toSet()); + } +} diff --git a/src/main/java/io/ib67/sfcraft/geoip/GeoIPService.java b/src/main/java/io/ib67/sfcraft/geoip/GeoIPService.java new file mode 100644 index 0000000..1c007de --- /dev/null +++ b/src/main/java/io/ib67/sfcraft/geoip/GeoIPService.java @@ -0,0 +1,75 @@ +package io.ib67.sfcraft.geoip; + +import com.maxmind.geoip2.DatabaseReader; +import com.maxmind.geoip2.exception.GeoIp2Exception; +import com.maxmind.geoip2.record.Country; +import io.ib67.sfcraft.SFCraft; +import lombok.SneakyThrows; +import lombok.extern.log4j.Log4j2; + +import java.io.Closeable; +import java.io.File; +import java.io.IOException; +import java.net.InetAddress; +import java.net.InetSocketAddress; +import java.net.SocketAddress; +import java.net.URI; +import java.net.http.HttpClient; +import java.net.http.HttpRequest; +import java.nio.file.Files; +import java.nio.file.Path; +import java.time.Clock; +import java.time.ZoneId; +import java.util.TimeZone; + +import static java.net.http.HttpResponse.BodyHandlers.ofFile; + +@Log4j2 +public class GeoIPService implements Closeable { + private static final URI GEOIP_DOWNLOAD_URL = URI.create("https://cdn.jsdelivr.net/gh/Loyalsoldier/geoip@release/Country.mmdb"); + private static final Path COUNTRY_MMDB_PATH = SFCraft.getInstance().getRoot().resolve("country.mmdb"); + private final DatabaseReader databaseReader; + + public GeoIPService() throws InterruptedException { + databaseReader = loadData(); + } + + @SneakyThrows + public Clock clockOf(InetAddress address) throws GeoIp2Exception { + return Clock.system(TimeZone.getTimeZone(databaseReader.country(address).getCountry().getIsoCode()).toZoneId()); + } + + private DatabaseReader loadData() throws InterruptedException { + try { + return new DatabaseReader.Builder(COUNTRY_MMDB_PATH.toFile()).build(); + } catch (IOException ignored) { + return updateData(); + } + } + + private DatabaseReader updateData() throws InterruptedException { + var client = HttpClient.newHttpClient(); + var req = HttpRequest.newBuilder(GEOIP_DOWNLOAD_URL).GET().build(); + int retries = 0; + do { + try { + log.info("Downloading GeoIP database, please wait...."); + client.send(req, ofFile(COUNTRY_MMDB_PATH)); + return new DatabaseReader.Builder(COUNTRY_MMDB_PATH.toFile()).build(); + } catch (IOException | InterruptedException e) { + log.error("Failed to download or the database is corrupted!", e); + int sleep = (int) Math.pow(2, ++retries); + log.info("Retrying after " + sleep + "sec."); + Thread.sleep(sleep); + } finally { + client.close(); + } + } while (retries < 4); + throw new InterruptedException("Cannot load GeoIP data."); + } + + @Override + public void close() throws IOException { + databaseReader.close(); + } +} diff --git a/src/main/java/io/ib67/sfcraft/mixin/server/ServerLoginNetworkHandlerMixin.java b/src/main/java/io/ib67/sfcraft/mixin/server/ServerLoginNetworkHandlerMixin.java new file mode 100644 index 0000000..3023768 --- /dev/null +++ b/src/main/java/io/ib67/sfcraft/mixin/server/ServerLoginNetworkHandlerMixin.java @@ -0,0 +1,33 @@ +package io.ib67.sfcraft.mixin.server; + +import io.ib67.sfcraft.SFCraft; +import net.minecraft.network.ClientConnection; +import net.minecraft.network.packet.c2s.login.LoginHelloC2SPacket; +import net.minecraft.server.network.ServerLoginNetworkHandler; +import net.minecraft.text.Text; +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.Redirect; +import org.spongepowered.asm.mixin.injection.callback.CallbackInfo; + +@Mixin(ServerLoginNetworkHandler.class) +public abstract class ServerLoginNetworkHandlerMixin { + @Shadow + public abstract void disconnect(Text reason); + + private String currentPlayer; + + @Inject(method = "onHello", at = @At("HEAD")) + public void onHello(LoginHelloC2SPacket packet, CallbackInfo ci) { + currentPlayer = packet.name(); + } + + @Redirect(method = "onHello", at = @At(value = "INVOKE", target = "Lnet/minecraft/network/ClientConnection;isLocal()Z")) + public boolean isLocal(ClientConnection connection) { + return SFCraft.getListener().onPlayerLogin(currentPlayer, connection, this::disconnect); + } + + +} diff --git a/src/main/resources/fabric.mod.json b/src/main/resources/fabric.mod.json new file mode 100644 index 0000000..3456a94 --- /dev/null +++ b/src/main/resources/fabric.mod.json @@ -0,0 +1,27 @@ +{ + "schemaVersion": 1, + "id": "sfcraft", + "version": "${version}", + "name": "sfcraft", + "description": "", + "authors": [], + "contact": { + "repo": "https://github.com/icebear67/sfcraft" + }, + "license": "GPL-3.0", + "icon": "assets/sfcraft/icon.png", + "environment": "server", + "entrypoints": { + "main": [ + "io.ib67.sfcraft.SFCraft" + ] + }, + "mixins": [ + "sfcraft.mixins.json" + ], + "depends": { + "fabricloader": ">=${loader_version}", + "fabric": "*", + "minecraft": "${minecraft_version}" + } +} diff --git a/src/main/resources/sfcraft.mixins.json b/src/main/resources/sfcraft.mixins.json new file mode 100644 index 0000000..d01702e --- /dev/null +++ b/src/main/resources/sfcraft.mixins.json @@ -0,0 +1,16 @@ +{ + "required": true, + "minVersion": "0.8", + "package": "io.ib67.sfcraft.mixin", + "compatibilityLevel": "JAVA_21", + "mixins": [ + ], + "client": [ + ], + "server": [ + "server.ServerLoginNetworkHandlerMixin" + ], + "injectors": { + "defaultRequire": 1 + } +}