Implement auto login for Floodgate players

This is buggy in most cases.

bukkit/pom.xml

@@ -226,6 +226,13 @@
             <version>1.2.0-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
+        
+        <dependency>
+            <groupId>org.geysermc</groupId>
+            <artifactId>floodgate-bukkit</artifactId>
+            <version>1.0-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
 
         <!--No maven repository :(-->
         <dependency>

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/ConnectionListener.java

@@ -3,6 +3,7 @@ package com.github.games647.fastlogin.bukkit.listener;
 import com.github.games647.fastlogin.bukkit.BukkitLoginSession;
 import com.github.games647.fastlogin.bukkit.FastLoginBukkit;
 import com.github.games647.fastlogin.bukkit.task.ForceLoginTask;
+import com.github.games647.fastlogin.core.StoredProfile;
 
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
@@ -13,6 +14,8 @@ import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.event.player.PlayerLoginEvent;
 import org.bukkit.event.player.PlayerLoginEvent.Result;
 import org.bukkit.event.player.PlayerQuitEvent;
+import org.geysermc.floodgate.FloodgateAPI;
+import org.geysermc.floodgate.FloodgatePlayer;
 
 /**
  * This listener tells authentication plugins if the player has a premium account and we checked it successfully. So the
@@ -45,7 +48,20 @@ public class ConnectionListener implements Listener {
             // cases: Paper (firing BungeeCord message before PlayerJoinEvent) or not running BungeeCord and already
             // having the login session from the login process
             BukkitLoginSession session = plugin.getSession(player.getAddress());
-            if (session == null) {
+            FloodgatePlayer floodgatePlayer = FloodgateAPI.getPlayer(player.getUniqueId());
+            if (floodgatePlayer != null) {
+                StoredProfile profile = plugin.getCore().getStorage().loadProfile(player.getName());
+                
+                //create fake session to make auto login work
+                session = new BukkitLoginSession(player.getName(), profile.isSaved());
+                session.setVerified(true);
+                
+                //start auto login
+                //TODO: configurate auto login for floodgate players
+                //TODO: fix bug: registering as bedrock player breaks java auto login 
+                Runnable forceLoginTask = new ForceLoginTask(plugin.getCore(), player, session);
+                Bukkit.getScheduler().runTaskAsynchronously(plugin, forceLoginTask);
+            } else if (session == null) {
                 String sessionId = plugin.getSessionId(player.getAddress());
                 plugin.getLog().info("No on-going login session for player: {} with ID {}", player, sessionId);
             } else {

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/NameCheckTask.java

@@ -14,6 +14,9 @@ import java.util.Random;
 
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.geysermc.connector.GeyserConnector;
+import org.geysermc.connector.common.AuthType;
+import org.geysermc.connector.network.session.GeyserSession;
 
 public class NameCheckTask extends JoinManagement<Player, CommandSender, ProtocolLibLoginSource>
         implements Runnable {
@@ -42,6 +45,19 @@ public class NameCheckTask extends JoinManagement<Player, CommandSender, Protoco
     @Override
     public void run() {
         try {
+            // check if the player is connecting through Geyser
+            if (GeyserConnector.getInstance().getDefaultAuthType() == AuthType.FLOODGATE) {
+                // the Floodgate API requires UUID, which is inaccessible at this state
+                // workaround: iterate over Geyser's player's usernames
+                for (GeyserSession geyserPlayer : GeyserConnector.getInstance().getPlayers()) {
+                    if (geyserPlayer.getName().equals(username)) {
+                        plugin.getLog().info(
+                                "Player {} is connecting through Geyser Floodgate.",
+                                username);
+                        return;
+                    }
+                }
+            }
             super.onLogin(username, new ProtocolLibLoginSource(packetEvent, player, random, publicKey));
         } finally {
             ProtocolLibrary.getProtocolManager().getAsynchronousManager().signalPacketTransmission(packetEvent);

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/ProtocolLibListener.java

@@ -90,21 +90,6 @@ public class ProtocolLibListener extends PacketAdapter {
         String username = packet.getGameProfiles().read(0).getName();
         plugin.getLog().trace("GameProfile {} with {} connecting", sessionKey, username);
 
-        // check if the player is connecting through Geyser
-        if (GeyserConnector.getInstance().getDefaultAuthType() == AuthType.FLOODGATE) {
-            // the Floodgate API requires UUID, which is inaccessible at this state
-            // workaround: iterate over Geyser's player's usernames
-            for (GeyserSession geyserPlayer : GeyserConnector.getInstance().getPlayers()) {
-                if (geyserPlayer.getName().equals(username)) {
-                    plugin.getLog().info(
-                            "Player {} is connecting throught Geyser Floodgate. FastLogin will not check this player.",
-                            username);
-                    // TODO: auto login (WHEN?)
-                    return;
-                }
-            }
-        }
-
         packetEvent.getAsyncMarker().incrementProcessingDelay();
         Runnable nameCheckTask = new NameCheckTask(plugin, packetEvent, random, player, username, keyPair.getPublic());
         plugin.getScheduler().runAsync(nameCheckTask);