If a player is not registered then we send a LOGIN plugin message on join (#2275)

* If a player is not registered then we send a LOGIN plugin message on join

* Make looking up a profile optionally quiet

This prevents an issue where a forcedLogin of a player that doesn't exist occurring when an unregistered player switches a server. The first login would tell AuthBungee that the player is logged in, and subsequent switches would have AuthBungee send a performLogin back that would then send an unregistered player error message to the player.

Co-authored-by: bundabrg <bundabrg@grieve.com.au>
Co-authored-by: Gabriele C <sgdc3.mail@gmail.com>

src/main/java/fr/xephi/authme/process/Management.java

@@ -57,6 +57,10 @@ public class Management {
         runTask(() -> asynchronousLogin.forceLogin(player));
     }
 
+    public void forceLogin(Player player, boolean quiet) {
+        runTask(() -> asynchronousLogin.forceLogin(player, quiet));
+    }
+
     public void performLogout(Player player) {
         runTask(() -> asynchronousLogout.logout(player));
     }

src/main/java/fr/xephi/authme/process/join/AsynchronousJoin.java

@@ -15,6 +15,8 @@ import fr.xephi.authme.service.CommonService;
 import fr.xephi.authme.service.PluginHookService;
 import fr.xephi.authme.service.SessionService;
 import fr.xephi.authme.service.ValidationService;
+import fr.xephi.authme.service.bungeecord.BungeeSender;
+import fr.xephi.authme.service.bungeecord.MessageType;
 import fr.xephi.authme.settings.WelcomeMessageConfiguration;
 import fr.xephi.authme.settings.commandconfig.CommandManager;
 import fr.xephi.authme.settings.properties.HooksSettings;
@@ -73,6 +75,9 @@ public class AsynchronousJoin implements AsynchronousProcess {
     @Inject
     private SessionService sessionService;
 
+    @Inject
+    private BungeeSender bungeeSender;
+
     @Inject
     private ProxySessionManager proxySessionManager;
 
@@ -148,6 +153,7 @@ public class AsynchronousJoin implements AsynchronousProcess {
             });
 
             // Skip if registration is optional
+            bungeeSender.sendAuthMeBungeecordMessage(MessageType.LOGIN, name);
             return;
         }
 

src/main/java/fr/xephi/authme/process/login/AsynchronousLogin.java

@@ -118,6 +118,19 @@ public class AsynchronousLogin implements AsynchronousProcess {
         }
     }
 
+    /**
+     * Logs a player in without requiring a password.
+     *
+     * @param player the player to log in
+     * @param quiet if true no messages will be sent
+     */
+    public void forceLogin(Player player, boolean quiet) {
+        PlayerAuth auth = getPlayerAuth(player, quiet);
+        if (auth != null) {
+            performLogin(player, auth);
+        }
+    }
+
     /**
      * Checks the precondition for authentication (like user known) and returns
      * the player's {@link PlayerAuth} object.
@@ -127,15 +140,32 @@ public class AsynchronousLogin implements AsynchronousProcess {
      *         (e.g. because he is already logged in)
      */
     private PlayerAuth getPlayerAuth(Player player) {
+        return getPlayerAuth(player, false);
+    }
+
+    /**
+     * Checks the precondition for authentication (like user known) and returns
+     * the player's {@link PlayerAuth} object.
+     *
+     * @param player the player to check
+     * @param quiet don't send messages
+     * @return the PlayerAuth object, or {@code null} if the player doesn't exist or may not log in
+     *         (e.g. because he is already logged in)
+     */
+    private PlayerAuth getPlayerAuth(Player player, boolean quiet) {
         final String name = player.getName().toLowerCase();
         if (playerCache.isAuthenticated(name)) {
+            if (!quiet) {
                 service.send(player, MessageKey.ALREADY_LOGGED_IN_ERROR);
+            }
             return null;
         }
 
         PlayerAuth auth = dataSource.getAuth(name);
         if (auth == null) {
+            if (!quiet) {
                 service.send(player, MessageKey.UNKNOWN_USER);
+            }
             // Recreate the message task to immediately send the message again as response
             limboService.resetMessageTask(player, LimboMessageType.REGISTER);
             return null;
@@ -143,13 +173,17 @@ public class AsynchronousLogin implements AsynchronousProcess {
 
         if (!service.getProperty(DatabaseSettings.MYSQL_COL_GROUP).isEmpty()
             && auth.getGroupId() == service.getProperty(HooksSettings.NON_ACTIVATED_USERS_GROUP)) {
+            if (!quiet) {
                 service.send(player, MessageKey.ACCOUNT_NOT_ACTIVATED);
+            }
             return null;
         }
 
         final String ip = PlayerUtils.getPlayerIp(player);
         if (hasReachedMaxLoggedInPlayersForIp(player, ip)) {
+            if (!quiet) {
                 service.send(player, MessageKey.ALREADY_LOGGED_IN_ERROR);
+            }
             return null;
         }
 

src/main/java/fr/xephi/authme/service/bungeecord/BungeeReceiver.java

@@ -152,7 +152,7 @@ public class BungeeReceiver implements PluginMessageListener, SettingsDependent
     private void performLogin(final String name) {
         Player player = bukkitService.getPlayerExact(name);
         if (player != null && player.isOnline()) {
-            management.forceLogin(player);
+            management.forceLogin(player, true);
             logger.info("The user " + player.getName() + " has been automatically logged in, "
                 + "as requested via plugin messaging.");
         } else {