/
PlayerPreLoginScriptEvent.java
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/
PlayerPreLoginScriptEvent.java
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package com.denizenscript.denizen.events.player;
import com.denizenscript.denizen.Denizen;
import com.denizenscript.denizen.events.BukkitScriptEvent;
import com.denizenscript.denizen.objects.PlayerTag;
import com.denizenscript.denizen.utilities.implementation.BukkitScriptEntryData;
import com.denizenscript.denizencore.objects.ObjectTag;
import com.denizenscript.denizencore.objects.core.ElementTag;
import com.denizenscript.denizencore.objects.core.QueueTag;
import com.denizenscript.denizencore.scripts.ScriptEntryData;
import com.denizenscript.denizencore.utilities.CoreConfiguration;
import com.denizenscript.denizencore.utilities.CoreUtilities;
import com.denizenscript.denizencore.utilities.debugging.Debug;
import org.bukkit.Bukkit;
import org.bukkit.OfflinePlayer;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.AsyncPlayerPreLoginEvent;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
public class PlayerPreLoginScriptEvent extends BukkitScriptEvent implements Listener {
// <--[event]
// @Events
// player prelogin
//
// @Regex ^on player prelogin$
//
// @Group Player
//
// @Triggers when a player starts to log in to the server.
// This is during the EARLY authentication process, and should NOT be confused with <@link event player joins>.
//
// @Warning This is a very special-case handler, that delays logins until the events are handled on the main thread.
// Generally, prefer <@link event on player logs in>.
//
// @Context
// <context.hostname> returns an ElementTag of the player's hostname.
// <context.name> returns an ElementTag of the player's name.
// <context.uuid> returns an ElementTag of the player's UUID.
//
// @Determine
// QueueTag to cause the event to wait until the queue is complete.
// "KICKED" to kick the player from the server.
// "KICKED <ElementTag>" to kick the player and specify a message to show.
//
// @Player When the player has previously joined (and thus the UUID is valid).
//
// -->
public PlayerPreLoginScriptEvent() {
}
public AsyncPlayerPreLoginEvent event;
public PlayerTag player;
public List<QueueTag> waitForQueues = new ArrayList<>();
@Override
public boolean couldMatch(ScriptPath path) {
return path.eventLower.startsWith("player prelogin");
}
@Override
public boolean matches(ScriptPath path) {
return super.matches(path);
}
@Override
public boolean applyDetermination(ScriptPath path, ObjectTag determinationObj) {
String determination = determinationObj.toString();
if (determinationObj instanceof ElementTag) {
if (CoreUtilities.toLowerCase(determination).startsWith("kicked")) {
String message = determination.length() > 7 ? determination.substring(7) : determination;
event.disallow(AsyncPlayerPreLoginEvent.Result.KICK_OTHER, message);
return true;
}
}
if (QueueTag.matches(determination)) {
QueueTag newQueue = QueueTag.valueOf(determination, getTagContext(path));
if (newQueue != null && newQueue.getQueue() != null) {
waitForQueues.add(newQueue);
}
return true;
}
return super.applyDetermination(path, determinationObj);
}
@Override
public ScriptEntryData getScriptEntryData() {
return new BukkitScriptEntryData(player, null);
}
@Override
public ObjectTag getContext(String name) {
switch (name) {
case "hostname":
return new ElementTag(event.getAddress().toString());
case "name":
return new ElementTag(event.getName());
case "uuid":
return new ElementTag(event.getUniqueId().toString());
}
return super.getContext(name);
}
public boolean needsToWait() {
if (CoreConfiguration.debugVerbose) {
Debug.log("Prelogin: queues that might need waiting: " + waitForQueues.size());
}
for (QueueTag queue : waitForQueues) {
if (!queue.getQueue().isStopped) {
if (CoreConfiguration.debugVerbose) {
Debug.log("Prelogin: need to wait for " + queue.getQueue().id);
}
return true;
}
}
if (CoreConfiguration.debugVerbose) {
Debug.log("Prelogin: no need to wait");
}
return false;
}
@EventHandler
public void onPlayerLogin(AsyncPlayerPreLoginEvent event) {
if (!Bukkit.isPrimaryThread()) {
PlayerPreLoginScriptEvent altEvent = (PlayerPreLoginScriptEvent) clone();
Future future = Bukkit.getScheduler().callSyncMethod(Denizen.getInstance(), () -> {
altEvent.onPlayerLogin(event);
return null;
});
try {
future.get(30, TimeUnit.SECONDS);
while (altEvent.needsToWait()) {
Thread.sleep(50);
}
}
catch (Throwable ex) {
Debug.echoError(ex);
}
return;
}
waitForQueues = new ArrayList<>();
OfflinePlayer bukkitPlayer = Bukkit.getOfflinePlayer(event.getUniqueId());
if (bukkitPlayer != null && bukkitPlayer.getName() != null) {
player = new PlayerTag(bukkitPlayer);
}
else {
player = null;
}
this.event = event;
fire(event);
}
}