Add virtual host support

src/main/java/org/geysermc/connect/GeyserConnectConfig.java

@@ -65,6 +65,8 @@ public class GeyserConnectConfig {
     @JsonProperty("custom-servers")
     private CustomServersSection customServers;
 
+    private VirtualHostSection vhost;
+
     public void checkRemoteIP() {
         if ("auto".equals(remoteAddress)) {
             remoteAddress = WebUtils.getBody("https://icanhazip.com/").trim();
@@ -111,4 +113,12 @@ public class GeyserConnectConfig {
         private String host;
         private int port;
     }
+
+    @Getter
+    public static class VirtualHostSection {
+
+        private boolean enabled;
+        @JsonProperty("base-domain")
+        private String baseDomain;
+    }
 }

src/main/java/org/geysermc/connect/PacketHandler.java

@@ -44,6 +44,7 @@ import org.geysermc.common.window.response.SimpleFormResponse;
 import org.geysermc.connect.ui.FormID;
 import org.geysermc.connect.ui.UIHandler;
 import org.geysermc.connect.utils.Player;
+import org.geysermc.connect.utils.Server;
 import org.geysermc.connector.entity.attribute.AttributeType;
 import org.geysermc.connector.network.BedrockProtocol;
 import org.geysermc.connector.network.session.auth.BedrockClientData;
@@ -210,6 +211,44 @@ public class PacketHandler implements BedrockPacketHandler {
 
         masterServer.getLogger().debug("Player initialized: " + player.getDisplayName());
 
+        // Handle the virtual host if specified
+        GeyserConnectConfig.VirtualHostSection vhost = MasterServer.getInstance().getGeyserConnectConfig().getVhost();
+        if (vhost.isEnabled()) {
+            String domain = player.getClientData().getServerAddress().split(":")[0];
+            if (!domain.equals(vhost.getBaseDomain()) && domain.endsWith("." + vhost.getBaseDomain())) {
+                String address = "";
+                int port = 25565;
+                boolean online = true;
+
+                // Parse the address used
+                String[] domainParts = domain.replaceFirst("\\." + vhost.getBaseDomain() + "$", "").split("._");
+                for (int i = 0; i < domainParts.length; i++) {
+                    String part = domainParts[i];
+                    if (i == 0) {
+                        address = part;
+                    } else if (part.startsWith("p")) {
+                        port = Integer.parseInt(part.substring(1));
+                    } else if (part.startsWith("o")) {
+                        online = false;
+                    }
+                }
+
+                // They didn't specify an address so disconnect them
+                if (address.startsWith("_")) {
+                    session.disconnect("disconnectionScreen.invalidIP");
+                    return false;
+                }
+
+                // Log the virtual host usage
+                masterServer.getLogger().info(player.getDisplayName() + " is using virtualhost: " + address + ":" + port + (!online ? " (offline)" : ""));
+
+                // Send the player to the wanted server
+                player.sendToServer(new Server(address, port, online, false));
+
+                return false;
+            }
+        }
+
         String message = "";
         try {
             File messageFile = FileUtils.fileOrCopiedFromResource(new File(MasterServer.getInstance().getGeyserConnectConfig().getWelcomeFile()), "welcome.txt", (x) -> x);

src/main/java/org/geysermc/connect/ui/UIHandler.java

@@ -241,7 +241,7 @@ public class UIHandler {
 
                         default:
                             player.getSession().disconnect("disconnectionScreen.disconnected");
-                            break;
+                            return;
                     }
                 } else {
                     player.getSession().disconnect("disconnectionScreen.disconnected");

src/main/resources/config.yml

@@ -63,8 +63,7 @@ servers:
     port: 19132
     bedrock: true
     category: OFFICIAL
-    imageUrl: >-
-      https://pbs.twimg.com/profile_images/1275867042583896066/UMPF5nTM_400x400.jpg
+    imageUrl: 'https://pbs.twimg.com/profile_images/1275867042583896066/UMPF5nTM_400x400.jpg'
 
   - name: Lifeboat Network
     address: 63.143.54.198
@@ -85,8 +84,7 @@ servers:
     port: 19132
     bedrock: true
     category: OFFICIAL
-    imageUrl: >-
-      https://pbs.twimg.com/profile_images/1332400307050045441/MHQvGEUP_400x400.jpg
+    imageUrl: 'https://pbs.twimg.com/profile_images/1332400307050045441/MHQvGEUP_400x400.jpg'
 
   - name: Official Geyser Test Server
     address: test.geysermc.org
@@ -113,3 +111,15 @@ custom-servers:
     database: "geyser_connect"
     host: "localhost"
     port: 3306
+
+# Enable virtual hosts to be specified to skip the server list
+# Allows people to connect using addresses like
+#   hypixel.net._p25565.example.com
+#   hypixel.net.example.com
+#   hypixel.net._o.example.com    - For offline mode
+vhost:
+  # Should this be enabled
+  enabled: false
+
+  # The base domain pointing to the server
+  base-domain: example.com