Send bye when deleting message

app/src/main/java/com/nextcloud/talk/controllers/CallController.java

@@ -1191,7 +1191,7 @@ public class CallController extends BaseController {
         webSocketConnectionHelper = new WebSocketConnectionHelper();
         webSocketClient = webSocketConnectionHelper.getExternalSignalingInstanceForServer(
                 externalSignalingServer.getExternalSignalingServer(),
-                conversationUser, externalSignalingServer.getExternalSignalingTicket(), false);
+                conversationUser, externalSignalingServer.getExternalSignalingTicket());
 
         if (webSocketClient.isConnected()) {
             joinRoomAndCall();

app/src/main/java/com/nextcloud/talk/jobs/AccountRemovalWorker.java

@@ -36,6 +36,7 @@ import com.nextcloud.talk.models.json.generic.GenericOverall;
 import com.nextcloud.talk.models.json.push.PushConfigurationState;
 import com.nextcloud.talk.utils.ApiUtils;
 import com.nextcloud.talk.utils.database.user.UserUtils;
+import com.nextcloud.talk.webrtc.WebSocketConnectionHelper;
 
 import java.io.IOException;
 import java.net.CookieManager;
@@ -135,6 +136,8 @@ public class AccountRemovalWorker extends Worker {
                                                             }
                                                         }
 
+                                                        WebSocketConnectionHelper.deleteExternalSignalingInstanceForUserEntity(userEntity.getId());
+
                                                         userUtils.deleteUser(userEntity.getId()).subscribe(new CompletableObserver() {
                                                                                                                        @Override
                                                                                                                        public void onSubscribe(Disposable d) {

app/src/main/java/com/nextcloud/talk/jobs/WebsocketConnectionsWorker.java

@@ -67,7 +67,7 @@ public class WebsocketConnectionsWorker extends Worker {
                             !TextUtils.isEmpty(externalSignalingServer.getExternalSignalingTicket())) {
                         webSocketConnectionHelper.getExternalSignalingInstanceForServer(
                                 externalSignalingServer.getExternalSignalingServer(),
-                                userEntity, externalSignalingServer.getExternalSignalingTicket(), false);
+                                userEntity, externalSignalingServer.getExternalSignalingTicket());
                     }
                 } catch (IOException e) {
                     Log.e(TAG, "Failed to parse external signaling server");

app/src/main/java/com/nextcloud/talk/models/json/websocket/ByeWebSocketMessage.java

@@ -0,0 +1,38 @@
+/*
+ * Nextcloud Talk application
+ *
+ * @author Mario Danic
+ * Copyright (C) 2017-2018 Mario Danic <mario@lovelyhq.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.nextcloud.talk.models.json.websocket;
+
+import com.bluelinelabs.logansquare.annotation.JsonField;
+import com.bluelinelabs.logansquare.annotation.JsonObject;
+
+import org.parceler.Parcel;
+
+import java.util.HashMap;
+
+import lombok.Data;
+
+@JsonObject
+@Parcel
+@Data
+public class ByeWebSocketMessage extends BaseWebSocketMessage {
+    @JsonField(name = "bye")
+    HashMap<String, Object> bye;
+}

app/src/main/java/com/nextcloud/talk/webrtc/MagicWebSocketInstance.java

@@ -29,6 +29,7 @@ import com.nextcloud.talk.events.WebSocketCommunicationEvent;
 import com.nextcloud.talk.models.database.UserEntity;
 import com.nextcloud.talk.models.json.signaling.NCMessageWrapper;
 import com.nextcloud.talk.models.json.websocket.BaseWebSocketMessage;
+import com.nextcloud.talk.models.json.websocket.ByeWebSocketMessage;
 import com.nextcloud.talk.models.json.websocket.CallOverallWebSocketMessage;
 import com.nextcloud.talk.models.json.websocket.ErrorOverallWebSocketMessage;
 import com.nextcloud.talk.models.json.websocket.EventOverallWebSocketMessage;
@@ -75,8 +76,8 @@ public class MagicWebSocketInstance extends WebSocketListener {
     private String connectionUrl;
 
     private String currentRoomToken;
-
+    private boolean isPermanentlyClosed = false;
-    int restartCount = 0;
+    private int restartCount = 0;
 
     MagicWebSocketInstance(UserEntity conversationUser, String connectionUrl, String webSocketTicket) {
         NextcloudTalkApplication.getSharedApplication().getComponentApplication().inject(this);
@@ -92,6 +93,7 @@ public class MagicWebSocketInstance extends WebSocketListener {
 
     @Override
     public void onOpen(WebSocket webSocket, Response response) {
+        if (isConnected()) {
             try {
                 if (TextUtils.isEmpty(resumeId)) {
                     webSocket.send(LoganSquare.serialize(webSocketConnectionHelper.getAssembledHelloModel(conversationUser, webSocketTicket)));
@@ -102,6 +104,7 @@ public class MagicWebSocketInstance extends WebSocketListener {
                 Log.e(TAG, "Failed to serialize hello model");
             }
         }
+    }
 
     private void restartWebSocket() {
         Request request = new Request.Builder().url(connectionUrl).build();
@@ -131,7 +134,9 @@ public class MagicWebSocketInstance extends WebSocketListener {
                         resumeId = "";
 
                     }
+                    if (!isPermanentlyClosed) {
                         restartWebSocket();
+                    }
                     break;
                 case "room":
                     JoinedRoomOverallWebSocketMessage joinedRoomOverallWebSocketMessage = LoganSquare.parse(text, JoinedRoomOverallWebSocketMessage.class);
@@ -186,6 +191,9 @@ public class MagicWebSocketInstance extends WebSocketListener {
                         eventBus.post(new WebSocketCommunicationEvent("signalingMessage", messageHashMap));
                     }
                     break;
+                case "bye":
+                    connected = false;
+                    isPermanentlyClosed = true;
                 default:
                     break;
             }
@@ -211,6 +219,8 @@ public class MagicWebSocketInstance extends WebSocketListener {
         connected = false;
         if (restartCount < 4) {
             restartWebSocket();
+        } else {
+            isPermanentlyClosed = true;
         }
     }
 
@@ -224,11 +234,13 @@ public class MagicWebSocketInstance extends WebSocketListener {
 
     public void joinRoomWithRoomTokenAndSession(String roomToken, String normalBackendSession) {
         if (!roomToken.equals(currentRoomToken)) {
+            if (isConnected()) {
                 try {
                     webSocket.send(LoganSquare.serialize(webSocketConnectionHelper.getAssembledJoinOrLeaveRoomModel(roomToken, normalBackendSession)));
                 } catch (IOException e) {
                     Log.e(TAG, "Failed to serialize room overall websocket message");
                 }
+            }
         } else {
             HashMap<String, String> joinRoomHashMap = new HashMap<>();
             joinRoomHashMap.put("roomToken", currentRoomToken);
@@ -237,12 +249,14 @@ public class MagicWebSocketInstance extends WebSocketListener {
     }
 
     public void sendCallMessage(NCMessageWrapper ncMessageWrapper) {
+        if (isConnected()) {
             try {
                 webSocket.send(LoganSquare.serialize(webSocketConnectionHelper.getAssembledCallMessageModel(ncMessageWrapper)));
             } catch (IOException e) {
                 Log.e(TAG, "Failed to serialize signaling message");
             }
         }
+    }
 
     public Object getJobWithId(Integer id) {
         Object copyJob = magicMap.get(id);
@@ -251,14 +265,33 @@ public class MagicWebSocketInstance extends WebSocketListener {
     }
 
     public void requestOfferForSessionIdWithType(String sessionIdParam, String roomType) {
+        if (isConnected()) {
             try {
                 webSocket.send(LoganSquare.serialize(webSocketConnectionHelper.getAssembledRequestOfferModel(sessionIdParam, roomType)));
             } catch (IOException e) {
                 Log.e(TAG, "Failed to offer request");
             }
         }
+    }
+
+    public void sendBye() {
+        if (isConnected()) {
+            try {
+                ByeWebSocketMessage byeWebSocketMessage = new ByeWebSocketMessage();
+                byeWebSocketMessage.setType("bye");
+                byeWebSocketMessage.setBye(new HashMap<>());
+                webSocket.send(LoganSquare.serialize(byeWebSocketMessage);
+            } catch (IOException e) {
+                Log.e(TAG, "Failed to serialize bye message");
+            }
+        }
+    }
 
     public boolean isConnected() {
         return connected;
     }
+
+    public boolean isPermanentlyClosed() {
+        return isPermanentlyClosed;
+    }
 }

app/src/main/java/com/nextcloud/talk/webrtc/WebSocketConnectionHelper.java

@@ -47,7 +47,7 @@ import okhttp3.OkHttpClient;
 
 @AutoInjector(NextcloudTalkApplication.class)
 public class WebSocketConnectionHelper {
-    private static Map<String, MagicWebSocketInstance> magicWebSocketInstanceMap = new HashMap<>();
+    private static Map<Long, MagicWebSocketInstance> magicWebSocketInstanceMap = new HashMap<>();
 
     @Inject
     OkHttpClient okHttpClient;
@@ -57,7 +57,7 @@ public class WebSocketConnectionHelper {
         NextcloudTalkApplication.getSharedApplication().getComponentApplication().inject(this);
     }
 
-    public static synchronized MagicWebSocketInstance getExternalSignalingInstanceForServer(String url, UserEntity userEntity, String webSocketTicket, boolean forceReconnect) {
+    public static synchronized MagicWebSocketInstance getExternalSignalingInstanceForServer(String url, UserEntity userEntity, String webSocketTicket) {
         String generatedURL = url.replace("https://", "wss://").replace("http://", "ws://");
 
         if (generatedURL.endsWith("/")) {
@@ -66,15 +66,25 @@ public class WebSocketConnectionHelper {
             generatedURL += "/spreed";
         }
 
-        if (magicWebSocketInstanceMap.containsKey(userEntity.getUserId()) && !forceReconnect) {
+        MagicWebSocketInstance magicWebSocketInstance;
-            return magicWebSocketInstanceMap.get(userEntity.getUserId());
+        if ((magicWebSocketInstance = magicWebSocketInstanceMap.get(userEntity.getId())) != null && !magicWebSocketInstance.isPermanentlyClosed()) {
+            return magicWebSocketInstance;
         } else {
-            MagicWebSocketInstance magicWebSocketInstance = new MagicWebSocketInstance(userEntity, generatedURL, webSocketTicket);
+            magicWebSocketInstance = new MagicWebSocketInstance(userEntity, generatedURL, webSocketTicket);
-            magicWebSocketInstanceMap.put(userEntity.getUserId(), magicWebSocketInstance);
+            magicWebSocketInstanceMap.put(userEntity.getId(), magicWebSocketInstance);
             return magicWebSocketInstance;
         }
     }
 
+    public static synchronized void deleteExternalSignalingInstanceForUserEntity(long id) {
+        MagicWebSocketInstance magicWebSocketInstance;
+        if ((magicWebSocketInstance = magicWebSocketInstanceMap.get(id)) != null) {
+            if (magicWebSocketInstance.isConnected()) {
+                magicWebSocketInstance.sendBye();
+                magicWebSocketInstanceMap.remove(id);
+            }
+        }
+    }
     HelloOverallWebSocketMessage getAssembledHelloModel(UserEntity userEntity, String ticket) {
         HelloOverallWebSocketMessage helloOverallWebSocketMessage = new HelloOverallWebSocketMessage();
         helloOverallWebSocketMessage.setType("hello");