Removes the need to use a bukkit auth plugin if you have a bungee one

(Fixes #4)

bukkit/src/main/java/com/github/games647/fastlogin/bukkit/FastLoginBukkit.java

@@ -153,7 +153,8 @@ public class FastLoginBukkit extends JavaPlugin {
     }
 
     /**
-     * Gets the auth plugin hook in order to interact with the plugins
+     * Gets the auth plugin hook in order to interact with the plugins.
+     * This can be null if no supporting auth plugin was found
      *
      * @return interface to any supported auth plugin
      */

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

@@ -4,6 +4,7 @@ import com.comphenix.protocol.wrappers.WrappedGameProfile;
 import com.comphenix.protocol.wrappers.WrappedSignedProperty;
 import com.github.games647.fastlogin.bukkit.FastLoginBukkit;
 import com.github.games647.fastlogin.bukkit.PlayerSession;
+import com.github.games647.fastlogin.bukkit.hooks.BukkitAuthPlugin;
 
 import java.util.logging.Level;
 
@@ -56,20 +57,23 @@ public class BukkitJoinListener implements Listener {
                     //blacklist this target player for BungeeCord Id brute force attacks
                     player.setMetadata(plugin.getName(), new FixedMetadataValue(plugin, true));
                     //check if it's the same player as we checked before
-                    if (session != null && player.getName().equals(session.getUsername()) && session.isVerified()) {
+
+                    BukkitAuthPlugin authPlugin = plugin.getAuthPlugin();
+                    if (session != null && player.getName().equals(session.getUsername()) && session.isVerified()
+                            && authPlugin != null) {
                         if (session.needsRegistration()) {
                             plugin.getLogger().log(Level.FINE, "Register player {0}", player.getName());
 
                             plugin.getEnabledPremium().add(session.getUsername());
 
                             String generatedPassword = plugin.generateStringPassword();
-                            plugin.getAuthPlugin().forceRegister(player, generatedPassword);
+                            authPlugin.forceRegister(player, generatedPassword);
                             player.sendMessage(ChatColor.DARK_GREEN + "Auto registered with password: "
                                     + generatedPassword);
                             player.sendMessage(ChatColor.DARK_GREEN + "You may want change it?");
                         } else {
                             plugin.getLogger().log(Level.FINE, "Logging player {0} in", player.getName());
-                            plugin.getAuthPlugin().forceLogin(player);
+                            authPlugin.forceLogin(player);
                             player.sendMessage(ChatColor.DARK_GREEN + "Auto logged in");
                         }
                     }

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

@@ -2,6 +2,7 @@ package com.github.games647.fastlogin.bukkit.listener;
 
 import com.github.games647.fastlogin.bukkit.FastLoginBukkit;
 import com.github.games647.fastlogin.bukkit.PlayerSession;
+import com.github.games647.fastlogin.bukkit.hooks.BukkitAuthPlugin;
 
 import java.net.InetSocketAddress;
 
@@ -29,10 +30,13 @@ public class ProtcolSupportListener implements Listener {
 
         //remove old data every time on a new login in order to keep the session only for one person
         plugin.getSessions().remove(playerName);
+
+        BukkitAuthPlugin authPlugin = plugin.getAuthPlugin();
         if (plugin.getEnabledPremium().contains(playerName)) {
             //the player have to be registered in order to invoke the command
             startPremiumSession(playerName, loginStartEvent, true);
-        } else if (plugin.getConfig().getBoolean("autoRegister") && !plugin.getAuthPlugin().isRegistered(playerName)) {
+        } else if (plugin.getConfig().getBoolean("autoRegister")
+                && authPlugin != null && !plugin.getAuthPlugin().isRegistered(playerName)) {
             startPremiumSession(playerName, loginStartEvent, false);
             plugin.getEnabledPremium().add(playerName);
         }

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

@@ -7,6 +7,7 @@ import com.comphenix.protocol.events.PacketContainer;
 import com.comphenix.protocol.events.PacketEvent;
 import com.github.games647.fastlogin.bukkit.FastLoginBukkit;
 import com.github.games647.fastlogin.bukkit.PlayerSession;
+import com.github.games647.fastlogin.bukkit.hooks.BukkitAuthPlugin;
 
 import java.lang.reflect.InvocationTargetException;
 import java.security.PublicKey;
@@ -72,9 +73,11 @@ public class StartPacketListener extends PacketAdapter {
         plugin.getLogger().log(Level.FINER, "Player {0} with {1} connecting to the server"
                 , new Object[]{sessionKey, username});
         if (!plugin.getBungeeCordUsers().containsKey(player)) {
+            BukkitAuthPlugin authPlugin = plugin.getAuthPlugin();
             if (plugin.getEnabledPremium().contains(username)) {
                 enablePremiumLogin(username, sessionKey, player, packetEvent, true);
-            } else if (plugin.getConfig().getBoolean("autologin") && !plugin.getAuthPlugin().isRegistered(username)) {
+            } else if (plugin.getConfig().getBoolean("autologin")
+                    && authPlugin != null && !plugin.getAuthPlugin().isRegistered(username)) {
                 enablePremiumLogin(username, sessionKey, player, packetEvent, false);
                 plugin.getEnabledPremium().add(username);
             }