hardcore ban on death

.gitignore

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+# User-specific stuff
+.idea/
+
+*.iml
+*.ipr
+*.iws
+
+# IntelliJ
+out/
+
+# 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
+
+target/
+
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+.mvn/wrapper/maven-wrapper.jar
+.flattened-pom.xml
+
+# Common working directory
+run/

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>me.youhavetrouble.truedeath</groupId>
+    <artifactId>TrueDeath</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>TrueDeath</name>
+
+    <properties>
+        <java.version>21</java.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <build>
+        <defaultGoal>clean package</defaultGoal>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.13.0</version>
+                <configuration>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.5.3</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+    <repositories>
+        <repository>
+            <id>papermc-repo</id>
+            <url>https://repo.papermc.io/repository/maven-public/</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.papermc.paper</groupId>
+            <artifactId>paper-api</artifactId>
+            <version>1.21.11-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

src/main/java/me/youhavetrouble/truedeath/TrueDeath.java

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+package me.youhavetrouble.truedeath;
+
+import com.mojang.brigadier.Command;
+import io.papermc.paper.command.brigadier.Commands;
+import io.papermc.paper.plugin.lifecycle.event.LifecycleEventManager;
+import io.papermc.paper.plugin.lifecycle.event.types.LifecycleEvents;
+import net.kyori.adventure.text.Component;
+import org.bukkit.Bukkit;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.PlayerDeathEvent;
+import org.bukkit.permissions.Permissible;
+import org.bukkit.permissions.Permission;
+import org.bukkit.permissions.PermissionDefault;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Date;
+
+public final class TrueDeath extends JavaPlugin implements Listener {
+
+    private final Permission trueDeathBypass = new Permission("truedeath.bypass", "Death does not ban players with this permission", PermissionDefault.OP);
+    private final Permission pluginReloadPermission = new Permission("truedeath.reload", "Allows reloading of the TrueDeath plugin", PermissionDefault.OP);
+
+    private long banTimeSeconds;
+    private String banMessage;
+
+    @Override
+    public void onEnable() {
+        getServer().getPluginManager().addPermission(trueDeathBypass);
+        reloadConfigValues();
+        getServer().getPluginManager().registerEvents(this, this);
+        LifecycleEventManager<@NotNull Plugin> manager = getLifecycleManager();
+        manager.registerEventHandler(LifecycleEvents.COMMANDS, event -> {
+            final Commands commands = event.registrar();
+            commands.register(
+                    Commands.literal("truedeath").then(
+                            Commands.literal("reload")
+                                    .requires(css -> {
+                                        if (!(css.getExecutor() instanceof Permissible permissible)) return false;
+                                        return permissible.hasPermission(pluginReloadPermission);
+                                    })
+                                    .executes(css -> {
+                                        reloadConfigValues();
+                                        css.getSource().getSender().sendRichMessage("<green>TrueDeath configuration reloaded.");
+                                        return Command.SINGLE_SUCCESS;
+                                    })
+                                    .build()
+                    ).build()
+            );
+        });
+    }
+
+    @Override
+    public void onDisable() {
+        // Players are normally kicked after plugins disable, so to avoid missing a death, kick everyone.
+        Bukkit.getOnlinePlayers()
+                .forEach(player -> player.kick(Component.translatable("minecraft.server.shutdown")));
+    }
+
+    @EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
+    public void onPlayerDeath(PlayerDeathEvent event) {
+        if (event.getPlayer().hasPermission(trueDeathBypass)) return;
+        Date banFinishDate = banTimeSeconds < 0 ? null : new Date(System.currentTimeMillis() + (banTimeSeconds * 1000));
+        event.getPlayer().ban(banMessage, banFinishDate, "[TrueDeath]", true);
+    }
+
+    public void reloadConfigValues() {
+        saveDefaultConfig();
+        reloadConfig();
+        String banTimeString = getConfig().getString("ban-time-seconds", "-1");
+        banTimeSeconds = parseBanTime(banTimeString);
+        banMessage = getConfig().getString("ban-message", "You have been slain. Thank you for playing.");
+    }
+
+    private long parseBanTime(String string) {
+
+        long multiplier = 1;
+
+        if (string.endsWith("s")) {
+            string = string.substring(0, string.length() - 1);
+        } else if (string.endsWith("m")) {
+            multiplier = 60;
+            string = string.substring(0, string.length() - 1);
+        } else if (string.endsWith("h")) {
+            multiplier = 3600;
+            string = string.substring(0, string.length() - 1);
+        } else if (string.endsWith("d")) {
+            multiplier = 86400;
+            string = string.substring(0, string.length() - 1);
+        } else if (string.endsWith("w")) {
+            multiplier = 604800;
+            string = string.substring(0, string.length() - 1);
+        } else if (string.endsWith("M")) {
+            multiplier = 2592000;
+            string = string.substring(0, string.length() - 1);
+        } else if (string.endsWith("y")) {
+            multiplier = 31536000;
+            string = string.substring(0, string.length() - 1);
+        }
+        long number;
+        try {
+            number = Long.parseLong(string);
+        } catch (NumberFormatException e) {
+            number = -1;
+            getSLF4JLogger().warn("Invalid ban time format in the config: \"{}\", defaulting to -1 (permanent ban)", string);
+        }
+
+        return number * multiplier;
+    }
+
+}

src/main/resources/config.yml

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+ban-message: "You have been slain. Thanks for playing."
+ban-time: -1

src/main/resources/plugin.yml

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+name: TrueDeath
+version: '1.0-SNAPSHOT'
+main: me.youhavetrouble.truedeath.TrueDeath
+api-version: '1.21'
+authors: [ YouHaveTrouble ]
+website: https://youhavetrouble.me