[FEATURE] Offline Mode

Launcher/src/main/java/pro/gravit/launcher/LauncherEngine.java

@@ -6,6 +6,7 @@
 import pro.gravit.launcher.client.events.ClientPreGuiPhase;
 import pro.gravit.launcher.console.GetPublicKeyCommand;
 import pro.gravit.launcher.console.SignDataCommand;
+import pro.gravit.launcher.events.request.*;
 import pro.gravit.launcher.guard.LauncherGuardInterface;
 import pro.gravit.launcher.guard.LauncherGuardManager;
 import pro.gravit.launcher.guard.LauncherNoGuard;
@@ -14,14 +15,21 @@
 import pro.gravit.launcher.gui.RuntimeProvider;
 import pro.gravit.launcher.managers.ClientGsonManager;
 import pro.gravit.launcher.managers.ConsoleManager;
+import pro.gravit.launcher.modules.events.OfflineModeEvent;
 import pro.gravit.launcher.modules.events.PreConfigPhase;
 import pro.gravit.launcher.profiles.optional.actions.OptionalAction;
 import pro.gravit.launcher.profiles.optional.triggers.OptionalTrigger;
 import pro.gravit.launcher.request.Request;
 import pro.gravit.launcher.request.RequestException;
-import pro.gravit.launcher.request.auth.AuthRequest;
+import pro.gravit.launcher.request.RequestService;
-import pro.gravit.launcher.request.auth.GetAvailabilityAuthRequest;
+import pro.gravit.launcher.request.auth.*;
+import pro.gravit.launcher.request.auth.details.AuthLoginOnlyDetails;
+import pro.gravit.launcher.request.management.FeaturesRequest;
+import pro.gravit.launcher.request.secure.GetSecureLevelInfoRequest;
+import pro.gravit.launcher.request.secure.SecurityReportRequest;
+import pro.gravit.launcher.request.update.LauncherRequest;
 import pro.gravit.launcher.request.websockets.ClientWebSocketService;
+import pro.gravit.launcher.request.websockets.OfflineRequestService;
 import pro.gravit.launcher.request.websockets.StdWebSocketService;
 import pro.gravit.launcher.utils.NativeJVMHalt;
 import pro.gravit.utils.helper.*;
@@ -34,7 +42,9 @@
 import java.security.interfaces.ECPrivateKey;
 import java.security.interfaces.ECPublicKey;
 import java.security.spec.InvalidKeySpecException;
+import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.List;
 import java.util.Objects;
 import java.util.concurrent.atomic.AtomicBoolean;
 
@@ -143,6 +153,35 @@ public static LauncherGuardInterface tryGetStdGuard() {
         return null;
     }
 
+    public static RequestService initOffline() {
+        OfflineRequestService service = new OfflineRequestService();
+        applyBasicOfflineProcessors(service);
+        OfflineModeEvent event = new OfflineModeEvent(service);
+        modulesManager.invokeEvent(event);
+        return event.service;
+    }
+
+    public static void applyBasicOfflineProcessors(OfflineRequestService service) {
+        service.registerRequestProcessor(LauncherRequest.class, (r) -> new LauncherRequestEvent(false, (String) null));
+        service.registerRequestProcessor(CheckServerRequest.class, (r) -> {
+            throw new RequestException("CheckServer disabled in offline mode");
+        });
+        service.registerRequestProcessor(GetAvailabilityAuthRequest.class, (r) -> {
+            List<GetAvailabilityAuthRequestEvent.AuthAvailabilityDetails> details = new ArrayList<>();
+            details.add(new AuthLoginOnlyDetails());
+            GetAvailabilityAuthRequestEvent.AuthAvailability authAvailability = new GetAvailabilityAuthRequestEvent.AuthAvailability("offline", "Offline Mode", details);
+            List<GetAvailabilityAuthRequestEvent.AuthAvailability> list = new ArrayList<>(1);
+            list.add(authAvailability);
+            return new GetAvailabilityAuthRequestEvent(list);
+        });
+        service.registerRequestProcessor(JoinServerRequest.class, (r) -> new JoinServerRequestEvent(false));
+        service.registerRequestProcessor(ExitRequest.class, (r) -> new ExitRequestEvent(ExitRequestEvent.ExitReason.CLIENT));
+        service.registerRequestProcessor(SetProfileRequest.class, (r) -> new SetProfileRequestEvent(null));
+        service.registerRequestProcessor(FeaturesRequest.class, (r) -> new FeaturesRequestEvent());
+        service.registerRequestProcessor(GetSecureLevelInfoRequest.class, (r) -> new GetSecureLevelInfoRequestEvent(null, false));
+        service.registerRequestProcessor(SecurityReportRequest.class, (r) -> new SecurityReportRequestEvent(SecurityReportRequestEvent.ReportAction.NONE));
+    }
+
     public static LauncherEngine clientInstance() {
         return new LauncherEngine(true);
     }
@@ -193,9 +232,19 @@ public void start(String... args) throws Throwable {
         if (!Request.isAvailable()) {
             String address = Launcher.getConfig().address;
             LogHelper.debug("Start async connection to %s", address);
-            StdWebSocketService service = StdWebSocketService.initWebSockets(address, true);
+            RequestService service;
+            try {
+                service = StdWebSocketService.initWebSockets(address).get();
+            } catch (Throwable e) {
+                if(LogHelper.isDebugEnabled()) {
+                    LogHelper.error(e);
+                }
+                LogHelper.warning("Launcher in offline mode");
+                service = initOffline();
+            }
             Request.setRequestService(service);
-            service.reconnectCallback = () ->
+            if(service instanceof StdWebSocketService) {
+                ((StdWebSocketService) service).reconnectCallback = () ->
                 {
                     LogHelper.debug("WebSocket connect closed. Try reconnect");
                     try {
@@ -205,6 +254,7 @@ public void start(String... args) throws Throwable {
                         throw new RequestException("Connection failed", e);
                     }
                 };
+            }
             service.registerEventHandler(new BasicLauncherEventHandler());
         }
         Objects.requireNonNull(args, "args");

Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherEntryPoint.java

@@ -4,12 +4,16 @@
 import pro.gravit.launcher.api.AuthService;
 import pro.gravit.launcher.api.ClientService;
 import pro.gravit.launcher.client.events.client.*;
+import pro.gravit.launcher.events.request.ProfileByUUIDRequestEvent;
+import pro.gravit.launcher.events.request.ProfileByUsernameRequestEvent;
 import pro.gravit.launcher.guard.LauncherGuardManager;
 import pro.gravit.launcher.hasher.FileNameMatcher;
 import pro.gravit.launcher.hasher.HashedDir;
 import pro.gravit.launcher.hasher.HashedEntry;
 import pro.gravit.launcher.managers.ClientGsonManager;
 import pro.gravit.launcher.managers.ConsoleManager;
+import pro.gravit.launcher.modules.LauncherModulesManager;
+import pro.gravit.launcher.modules.events.OfflineModeEvent;
 import pro.gravit.launcher.modules.events.PreConfigPhase;
 import pro.gravit.launcher.patches.FMLPatcher;
 import pro.gravit.launcher.profiles.ClientProfile;
@@ -19,8 +23,13 @@
 import pro.gravit.launcher.profiles.optional.triggers.OptionalTrigger;
 import pro.gravit.launcher.request.Request;
 import pro.gravit.launcher.request.RequestException;
+import pro.gravit.launcher.request.RequestService;
 import pro.gravit.launcher.request.auth.AuthRequest;
 import pro.gravit.launcher.request.auth.GetAvailabilityAuthRequest;
+import pro.gravit.launcher.request.uuid.BatchProfileByUsernameRequest;
+import pro.gravit.launcher.request.uuid.ProfileByUUIDRequest;
+import pro.gravit.launcher.request.uuid.ProfileByUsernameRequest;
+import pro.gravit.launcher.request.websockets.OfflineRequestService;
 import pro.gravit.launcher.request.websockets.StdWebSocketService;
 import pro.gravit.launcher.serialize.HInput;
 import pro.gravit.launcher.utils.DirWatcher;
@@ -113,12 +122,15 @@ public static void main(String[] args) throws Throwable {
         List<URL> classpath = resolveClassPath(clientDir, params.actions, params.profile).map(IOHelper::toURL).collect(Collectors.toList());
         // Start client with WatchService monitoring
         boolean digest = !profile.isUpdateFastCheck();
-        StdWebSocketService service = StdWebSocketService.initWebSockets(Launcher.getConfig().address, false);
+        RequestService service;
+        if(params.offlineMode) {
+            service = initOffline(LauncherEngine.modulesManager, params);
+        } else {
+            service = StdWebSocketService.initWebSockets(Launcher.getConfig().address).get();
             LogHelper.debug("Restore sessions");
             Request.restore();
-
             service.registerEventHandler(new BasicLauncherEventHandler());
-        service.reconnectCallback = () ->
+            ((StdWebSocketService) service).reconnectCallback = () ->
             {
                 LogHelper.debug("WebSocket connect closed. Try reconnect");
                 try {
@@ -128,6 +140,7 @@ public static void main(String[] args) throws Throwable {
                     throw new RequestException("Connection failed", e);
                 }
             };
+        }
         Request.setRequestService(service);
         ClientProfile.ClassLoaderConfig classLoaderConfig = profile.getClassLoaderConfig();
         if (classLoaderConfig == ClientProfile.ClassLoaderConfig.LAUNCHER) {
@@ -204,6 +217,30 @@ private static void initGson(ClientModuleManager moduleManager) {
         Launcher.gsonManager.initGson();
     }
 
+    public static RequestService initOffline(LauncherModulesManager modulesManager, ClientLauncherProcess.ClientParams params) {
+        OfflineRequestService service = new OfflineRequestService();
+        LauncherEngine.applyBasicOfflineProcessors(service);
+        applyClientOfflineProcessors(service, params);
+        OfflineModeEvent event = new OfflineModeEvent(service);
+        modulesManager.invokeEvent(event);
+        return event.service;
+    }
+
+    public static void applyClientOfflineProcessors(OfflineRequestService service, ClientLauncherProcess.ClientParams params) {
+        service.registerRequestProcessor(ProfileByUsernameRequest.class, (r) -> {
+            if(params.playerProfile.username.equals(r.username)) {
+                return new ProfileByUsernameRequestEvent(params.playerProfile);
+            }
+            throw new RequestException("User not found");
+        });
+        service.registerRequestProcessor(ProfileByUUIDRequest.class, (r) -> {
+            if(params.playerProfile.uuid.equals(r.uuid)) {
+                return new ProfileByUUIDRequestEvent(params.playerProfile);
+            }
+            throw new RequestException("User not found");
+        });
+    }
+
     public static void verifyHDir(Path dir, HashedDir hdir, FileNameMatcher matcher, boolean digest) throws IOException {
         //if (matcher != null)
         //    matcher = matcher.verifyOnly();

Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherProcess.java

@@ -281,6 +281,8 @@ public static class ClientParams {
 
         public Map<String, String> extendedTokens;
 
+        public boolean offlineMode;
+
         public transient HashedDir assetHDir;
 
         public transient HashedDir clientHDir;

Launcher/src/main/java/pro/gravit/launcher/debug/DebugMain.java

@@ -7,7 +7,12 @@
 import pro.gravit.launcher.client.ClientModuleManager;
 import pro.gravit.launcher.managers.ConsoleManager;
 import pro.gravit.launcher.modules.LauncherModule;
+import pro.gravit.launcher.modules.events.OfflineModeEvent;
 import pro.gravit.launcher.modules.events.PreConfigPhase;
+import pro.gravit.launcher.request.Request;
+import pro.gravit.launcher.request.RequestService;
+import pro.gravit.launcher.request.websockets.OfflineRequestService;
+import pro.gravit.launcher.request.websockets.StdWebSocketService;
 import pro.gravit.utils.helper.LogHelper;
 
 import java.lang.invoke.MethodHandles;
@@ -22,6 +27,7 @@ public class DebugMain {
     public static String webSocketURL = System.getProperty("launcherdebug.websocket", "ws://localhost:9274/api");
     public static String projectName = System.getProperty("launcherdebug.projectname", "Minecraft");
     public static String unlockKey = System.getProperty("launcherdebug.unlockkey", "0000");
+    public static boolean offlineMode = Boolean.getBoolean("launcherdebug.offlinemode");
     public static String[] moduleClasses = System.getProperty("launcherdebug.modules", "").split(",");
     public static String[] moduleFiles = System.getProperty("launcherdebug.modulefiles", "").split(",");
     public static LauncherConfig.LauncherEnvironment environment = LauncherConfig.LauncherEnvironment.valueOf(System.getProperty("launcherdebug.env", "STD"));
@@ -50,6 +56,17 @@ public static void main(String[] args) throws Throwable {
         LauncherEngine.initGson(LauncherEngine.modulesManager);
         ConsoleManager.initConsole();
         LauncherEngine.modulesManager.invokeEvent(new PreConfigPhase());
+        RequestService service;
+        if(offlineMode) {
+            OfflineRequestService offlineRequestService = new OfflineRequestService();
+            LauncherEngine.applyBasicOfflineProcessors(offlineRequestService);
+            OfflineModeEvent event = new OfflineModeEvent(offlineRequestService);
+            LauncherEngine.modulesManager.invokeEvent(event);
+            service = event.service;
+        } else {
+            service = StdWebSocketService.initWebSockets(webSocketURL).get();
+        }
+        Request.setRequestService(service);
         LogHelper.debug("Initialization LauncherEngine");
         LauncherEngine instance = LauncherEngine.newInstance(false);
         instance.start(args);

LauncherAPI/src/main/java/pro/gravit/launcher/events/request/GetSecureLevelInfoRequestEvent.java

@@ -10,6 +10,11 @@ public GetSecureLevelInfoRequestEvent(byte[] verifySecureKey) {
         this.verifySecureKey = verifySecureKey;
     }
 
+    public GetSecureLevelInfoRequestEvent(byte[] verifySecureKey, boolean enabled) {
+        this.verifySecureKey = verifySecureKey;
+        this.enabled = enabled;
+    }
+
     @Override
     public String getType() {
         return "getSecureLevelInfo";

LauncherAPI/src/main/java/pro/gravit/launcher/modules/events/OfflineModeEvent.java

@@ -0,0 +1,12 @@
+package pro.gravit.launcher.modules.events;
+
+import pro.gravit.launcher.modules.LauncherModule;
+import pro.gravit.launcher.request.RequestService;
+
+public class OfflineModeEvent extends LauncherModule.Event {
+    public RequestService service;
+
+    public OfflineModeEvent(RequestService service) {
+        this.service = service;
+    }
+}

LauncherAPI/src/main/java/pro/gravit/launcher/request/Request.java

@@ -214,8 +214,9 @@ public void removeOAuthChangeHandler(BiConsumer<String, AuthRequestEvent.OAuthRe
     public R request() throws Exception {
         if (!started.compareAndSet(false, true))
             throw new IllegalStateException("Request already started");
-        if (!isAvailable())
+        if(!isAvailable()) {
-            setRequestService(StdWebSocketService.initWebSockets(Launcher.getConfig().address, false));
+            throw new RequestException("RequestService not initialized");
+        }
         return requestDo(requestService);
     }
 

LauncherAPI/src/main/java/pro/gravit/launcher/request/auth/AuthRequest.java

@@ -11,15 +11,15 @@ public final class AuthRequest extends Request<AuthRequestEvent> implements WebS
     public static final ProviderMap<AuthPasswordInterface> providers = new ProviderMap<>();
     private static boolean registerProviders = false;
     @LauncherNetworkAPI
-    private final String login;
+    public final String login;
     @LauncherNetworkAPI
-    private final AuthPasswordInterface password;
+    public final AuthPasswordInterface password;
     @LauncherNetworkAPI
-    private final String auth_id;
+    public final String auth_id;
     @LauncherNetworkAPI
-    private final boolean getSession;
+    public final boolean getSession;
     @LauncherNetworkAPI
-    private final ConnectTypes authType;
+    public final ConnectTypes authType;
 
     public AuthRequest(String login, String password, String auth_id, ConnectTypes authType) {
         this.login = login;

LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/ClientJSONPoint.java

@@ -24,6 +24,8 @@
 import java.security.KeyStoreException;
 import java.security.NoSuchAlgorithmException;
 import java.security.cert.CertificateException;
+import java.util.concurrent.CompletableFuture;
+import java.util.function.Consumer;
 
 public abstract class ClientJSONPoint {
 
@@ -94,16 +96,26 @@ public void open() throws Exception {
         webSocketClientHandler.handshakeFuture().sync();
     }
 
-    public void openAsync(Runnable onConnect) {
+    public void openAsync(Runnable onConnect, Consumer<Throwable> onFail) {
         //System.out.println("WebSocket Client connecting");
         webSocketClientHandler =
                 new WebSocketClientHandler(
                         WebSocketClientHandshakerFactory.newHandshaker(
                                 uri, WebSocketVersion.V13, null, false, EmptyHttpHeaders.INSTANCE, 12800000), this);
         ChannelFuture future = bootstrap.connect(uri.getHost(), port);
-        future.addListener((e) -> {
+        future.addListener((l) -> {
+            if(l.isSuccess()) {
                 ch = future.channel();
-            webSocketClientHandler.handshakeFuture().addListener((e1) -> onConnect.run());
+                webSocketClientHandler.handshakeFuture().addListener((e) -> {
+                    if(e.isSuccess()) {
+                        onConnect.run();
+                    } else {
+                        onFail.accept(webSocketClientHandler.handshakeFuture().cause());
+                    }
+                });
+            } else {
+                onFail.accept(future.cause());
+            }
         });
     }
 

LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/ClientWebSocketService.java

@@ -27,6 +27,7 @@
 public abstract class ClientWebSocketService extends ClientJSONPoint {
     public static final ProviderMap<WebSocketEvent> results = new ProviderMap<>();
     public static final ProviderMap<WebSocketRequest> requests = new ProviderMap<>();
+    private static boolean resultsRegistered = false;
     public final Gson gson;
     public final Boolean onConnect;
     public OnCloseCallback onCloseCallback;
@@ -83,6 +84,7 @@ public void registerRequests() {
 
     @SuppressWarnings("deprecation")
     public void registerResults() {
+        if(!resultsRegistered) {
             results.register("auth", AuthRequestEvent.class);
             results.register("checkServer", CheckServerRequestEvent.class);
             results.register("joinServer", JoinServerRequestEvent.class);
@@ -115,6 +117,8 @@ public void registerResults() {
             results.register("refreshToken", RefreshTokenRequestEvent.class);
             results.register("restore", RestoreRequestEvent.class);
             results.register("additionalData", AdditionalDataRequestEvent.class);
+            resultsRegistered = true;
+        }
     }
 
     public void waitIfNotConnected() {

LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/OfflineRequestService.java

@@ -0,0 +1,73 @@
+package pro.gravit.launcher.request.websockets;
+
+import pro.gravit.launcher.Launcher;
+import pro.gravit.launcher.request.Request;
+import pro.gravit.launcher.request.RequestException;
+import pro.gravit.launcher.request.RequestService;
+import pro.gravit.launcher.request.WebSocketEvent;
+import pro.gravit.utils.helper.LogHelper;
+
+import java.io.IOException;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class OfflineRequestService implements RequestService {
+    private final HashSet<EventHandler> eventHandlers = new HashSet<>();
+    private final Map<Class<?>, RequestProcessor<?, ?>> processors = new ConcurrentHashMap<>();
+    @Override
+    @SuppressWarnings("unchecked")
+    public <T extends WebSocketEvent> CompletableFuture<T> request(Request<T> request) throws IOException {
+        RequestProcessor<T, Request<T>> processor = (RequestProcessor<T, Request<T>>) processors.get(request.getClass());
+        CompletableFuture<T> future = new CompletableFuture<>();
+        if(processor == null) {
+            future.completeExceptionally(new RequestException(String.format("Offline mode not support '%s'", request.getType())));
+            return future;
+        }
+        if(LogHelper.isDevEnabled()) {
+            LogHelper.dev("Request %s: %s", request.getType(), Launcher.gsonManager.gson.toJson(request));
+        }
+        try {
+            T event = processor.process(request);
+            if(LogHelper.isDevEnabled()) {
+                LogHelper.dev("Response %s: %s", event.getType(), Launcher.gsonManager.gson.toJson(event));
+            }
+            future.complete(event);
+        } catch (Throwable e) {
+            if(e instanceof RequestException) {
+                future.completeExceptionally(e);
+            } else {
+                future.completeExceptionally(new RequestException(e));
+            }
+        }
+        return future;
+    }
+
+    @Override
+    public void registerEventHandler(EventHandler handler) {
+        eventHandlers.add(handler);
+    }
+
+    @Override
+    public void unregisterEventHandler(EventHandler handler) {
+        eventHandlers.remove(handler);
+    }
+
+    @Override
+    public boolean isClosed() {
+        return false;
+    }
+
+    public<T extends WebSocketEvent, V extends WebSocketRequest> void registerRequestProcessor(Class<V> requestClazz, RequestProcessor<T, V> function) {
+        processors.put(requestClazz, function);
+    }
+
+    public<T extends WebSocketEvent> void unregisterRequestProcessor(Class<Request<T>> requestClazz) {
+        processors.remove(requestClazz);
+    }
+
+    public interface RequestProcessor<T extends WebSocketEvent, V extends WebSocketRequest> {
+        T process(V request) throws RequestException;
+    }
+}

LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/StdWebSocketService.java

@@ -28,7 +28,7 @@ public StdWebSocketService(String address) throws SSLException {
         super(address);
     }
 
-    public static StdWebSocketService initWebSockets(String address, boolean async) {
+    public static CompletableFuture<StdWebSocketService> initWebSockets(String address) throws Exception {
         StdWebSocketService service;
         try {
             service = new StdWebSocketService(address);
@@ -37,16 +37,9 @@ public static StdWebSocketService initWebSockets(String address, boolean async)
         }
         service.registerResults();
         service.registerRequests();
-        if (!async) {
+        CompletableFuture<StdWebSocketService> future = new CompletableFuture<>();
-            try {
-                service.open();
-            } catch (Exception e) {
-                LogHelper.error(e);
-            }
-        } else {
         service.openAsync(() -> {
-            });
+            future.complete(service);
-        }
             JVMHelper.RUNTIME.addShutdownHook(new Thread(() -> {
                 try {
                     //if(service.isOpen())
@@ -56,9 +49,14 @@ public static StdWebSocketService initWebSockets(String address, boolean async)
                     LogHelper.error(e);
                 }
             }));
-        return service;
+        }, (error) -> {
+            future.completeExceptionally(error);
+        });
+        return future;
     }
 
+
+
     @Deprecated
     public void registerEventHandler(ClientWebSocketService.EventHandler handler) {
         legacyEventHandlers.add(handler);

LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/VoidRequestService.java

@@ -0,0 +1,43 @@
+package pro.gravit.launcher.request.websockets;
+
+import pro.gravit.launcher.request.Request;
+import pro.gravit.launcher.request.RequestException;
+import pro.gravit.launcher.request.RequestService;
+import pro.gravit.launcher.request.WebSocketEvent;
+
+import java.io.IOException;
+import java.util.concurrent.CompletableFuture;
+
+public class VoidRequestService implements RequestService {
+    private final Throwable ex;
+
+    public VoidRequestService(Throwable ex) {
+        this.ex = ex;
+    }
+
+    public VoidRequestService() {
+        this.ex = null;
+    }
+
+    @Override
+    public <T extends WebSocketEvent> CompletableFuture<T> request(Request<T> request) throws IOException {
+        CompletableFuture<T> future = new CompletableFuture<>();
+        future.completeExceptionally(ex != null ? ex : new RequestException("Connection fail"));
+        return future;
+    }
+
+    @Override
+    public void registerEventHandler(EventHandler handler) {
+
+    }
+
+    @Override
+    public void unregisterEventHandler(EventHandler handler) {
+
+    }
+
+    @Override
+    public boolean isClosed() {
+        return true;
+    }
+}

LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/WebSocketClientHandler.java

@@ -77,17 +77,15 @@ else if (frame instanceof BinaryWebSocketFrame) {
             // uncomment to print request
             // logger.info(frame.content().toString());
         }
-
     }
 
     @Override
     public void exceptionCaught(final ChannelHandlerContext ctx, final Throwable cause) {
-        LogHelper.error(cause);
-
         if (!handshakeFuture.isDone()) {
             handshakeFuture.setFailure(cause);
+        } else {
+            LogHelper.error(cause);
         }
-
         ctx.close();
     }
 }

ServerWrapper/src/main/java/pro/gravit/launcher/server/ServerWrapper.java

@@ -113,7 +113,7 @@ public void run(String... args) throws Throwable {
         updateLauncherConfig();
         if (config.env != null) Launcher.applyLauncherEnv(config.env);
         else Launcher.applyLauncherEnv(LauncherConfig.LauncherEnvironment.STD);
-        StdWebSocketService service = StdWebSocketService.initWebSockets(config.address, false);
+        StdWebSocketService service = StdWebSocketService.initWebSockets(config.address).get();
         service.reconnectCallback = () ->
         {
             LogHelper.debug("WebSocket connect closed. Try reconnect");

ServerWrapper/src/main/java/pro/gravit/launcher/server/setup/ServerWrapperSetup.java

@@ -61,7 +61,13 @@ public void run() throws Exception {
             if(!Request.isAvailable() || Request.getRequestService().isClosed()) {
                 System.out.println("Print launchserver websocket host( ws://host:port/api ):");
                 wrapper.config.address = commands.commandHandler.readLine();
-                StdWebSocketService service = StdWebSocketService.initWebSockets(wrapper.config.address, false);
+                StdWebSocketService service;
+                try {
+                    service = StdWebSocketService.initWebSockets(wrapper.config.address).get();
+                } catch (Throwable e) {
+                    LogHelper.error(e);
+                    continue;
+                }
                 Request.setRequestService(service);
             }
             System.out.println("Print server token:");

build.gradle

@@ -5,7 +5,7 @@
     id 'org.openjfx.javafxplugin' version '0.0.10' apply false
 }
 group = 'pro.gravit.launcher'
-version = '5.2.5'
+version = '5.2.6-SNAPSHOT'
 
 apply from: 'props.gradle'