Add the ability to define multiple authentication services

src/main/java/de/sebastianvonhelmersen/fetmcplugin.java

@@ -1,5 +1,8 @@
 package de.sebastianvonhelmersen;
 
+import de.sebastianvonhelmersen.authentication.Authenticator;
+import de.sebastianvonhelmersen.authentication.FetSite;
+import de.sebastianvonhelmersen.authentication.Ldap;
 import net.kyori.adventure.text.Component;
 import org.bukkit.Bukkit;
 import org.bukkit.GameMode;
@@ -23,11 +26,13 @@ import java.util.logging.Level;
 public class fetmcplugin extends JavaPlugin implements Listener {
     private Database db;
     private Map<UUID, AuthInfos> allInfos = HashMap.newHashMap(0);
+    private Authenticator authenticator;
 
     @Override
     public void onEnable() {
         // Make sure the plugin's data folder exists
         File dataFolder = this.getDataFolder();
+        this.authenticator = new FetSite("MyokpBxpqxw9Eo8IduwH9IFSnBy4qII6");
 
         if (!dataFolder.exists()) {
             dataFolder.mkdirs();
@@ -145,10 +150,10 @@ public class fetmcplugin extends JavaPlugin implements Listener {
                         Component.text("§eBitte gib das Password deines FET Accounts ein!"));
                 break;
             case AUTH_WAITING_PASSWORD:
-                LdapUser user = checkLdap(info.getUsername(), message.trim());
+                boolean valid = validate(info.getUsername(), message.trim());
                 event.setCancelled(true);
                 event.getRecipients().clear();
-                if(user != null) {
+                if(valid) {
                     allInfos.remove(uuid);
                     this.db.addPlayer(uuid.toString(), event.getPlayer().getName(), user);
                     Bukkit.getScheduler().runTask(this, () -> {
@@ -177,11 +182,16 @@ public class fetmcplugin extends JavaPlugin implements Listener {
         return;
 
     }
-
-    private LdapUser checkLdap(String username, String password) {
+    /*
+     *  This function uses the defined Authenticator instance to authenticate the User against their
+     *  provided username - token combination
+     *  @param username the username used to authenticate the player with the provider
+     *  @param token some sort of authentication methon. Can be Password, AppPassword or some other form of token the
+     *         provider takes to authenticate the user
+     */
+    private boolean validate(String username, String token) {
         getLogger().log(Level.INFO, "Checking LDAP for user " + username);
-        return Ldap.authenticate(username, password);
-        //return true;
+        return authenticator.authenticate(username, token);
     }
 
 }