MUC presence error handling.

Closes #15

Manager/Classes/MucJoinHelper.cs

@@ -66,10 +66,12 @@ public async Task EnterRoomAsync()
             // Subscribe to events for receiving answers:
             CLIENT.NewMUCMemberPresenceMessage -= OnMucMemberPresenceMessage;
             CLIENT.NewMUCMemberPresenceMessage += OnMucMemberPresenceMessage;
+            CLIENT.NewMUCPresenceErrorMessage -= OnMucPresenceErrorMessage;
+            CLIENT.NewMUCPresenceErrorMessage += OnMucPresenceErrorMessage;
 
             // Send message:
             await CLIENT.SendAsync(msg);
-            Logger.Info("Entering MUC room '" + INFO.chat.bareJid + "' as '" + INFO.nickname + '\'');
+            Logger.Info($"Entering MUC room '{INFO.chat.bareJid}' as '{INFO.nickname }'...");
         }
 
         public bool CanGetRemoved()
@@ -111,19 +113,17 @@ private void OnMucMemberPresenceMessage(XMPPClient client, NewMUCMemberPresenceM
                             case MUCPresenceStatusCode.PRESENCE_SELFE_REFERENCE:
                                 // Remove event subscription:
                                 CLIENT.NewMUCMemberPresenceMessage -= OnMucMemberPresenceMessage;
+                                CLIENT.NewMUCPresenceErrorMessage -= OnMucPresenceErrorMessage;
 
                                 using (SemaLock semaLock = INFO.NewSemaLock())
                                 {
                                     // Update MUC info:
                                     INFO.state = MucState.ENTERD;
                                     INFO.affiliation = args.mucMemberPresenceMessage.AFFILIATION;
                                     INFO.role = args.mucMemberPresenceMessage.ROLE;
-                                    using (MainDbContext ctx = new MainDbContext())
-                                    {
-                                        ctx.Update(INFO);
-                                    }
+                                    INFO.Update();
                                 }
-                                Logger.Info("Entered MUC room '" + roomJId + "' as '" + INFO.nickname + "' with role '" + INFO.role + "' and affiliation '" + INFO.affiliation + '\'');
+                                Logger.Info($"Entered MUC room '{roomJId}' as '{INFO.nickname}' with role '{INFO.role}' and affiliation '{INFO.affiliation}'");
                                 break;
 
                             default:
@@ -137,6 +137,21 @@ private void OnMucMemberPresenceMessage(XMPPClient client, NewMUCMemberPresenceM
             }
         }
 
+        private void OnMucPresenceErrorMessage(XMPPClient client, NewMUCPresenceErrorMessageEventArgs args)
+        {
+            // Remove event subscription:
+            CLIENT.NewMUCMemberPresenceMessage -= OnMucMemberPresenceMessage;
+            CLIENT.NewMUCPresenceErrorMessage -= OnMucPresenceErrorMessage;
+
+            using (SemaLock semaLock = INFO.NewSemaLock())
+            {
+                // Update MUC info:
+                INFO.state = MucState.ERROR;
+                INFO.Update();
+            }
+            Logger.Error($"Failed to join '{INFO.chat.bareJid}' with: {args.mucPresenceErrorMessage.ERROR}");
+        }
+
         #endregion
     }
 }

XMPP_API/Classes/Network/Events/NewMUCPresenceErrorMessageEventArgs.cs

@@ -0,0 +1,46 @@
+using XMPP_API.Classes.Network.XML.Messages.XEP_0045;
+
+namespace XMPP_API.Classes.Network.Events
+{
+    public class NewMUCPresenceErrorMessageEventArgs
+    {
+        //--------------------------------------------------------Attributes:-----------------------------------------------------------------\\
+        #region --Attributes--
+        public readonly MUCPresenceErrorMessage mucPresenceErrorMessage;
+
+        #endregion
+        //--------------------------------------------------------Constructor:----------------------------------------------------------------\\
+        #region --Constructors--
+        public NewMUCPresenceErrorMessageEventArgs(MUCPresenceErrorMessage mucPresenceErrorMessage)
+        {
+            this.mucPresenceErrorMessage = mucPresenceErrorMessage;
+        }
+
+        #endregion
+        //--------------------------------------------------------Set-, Get- Methods:---------------------------------------------------------\\
+        #region --Set-, Get- Methods--
+
+
+        #endregion
+        //--------------------------------------------------------Misc Methods:---------------------------------------------------------------\\
+        #region --Misc Methods (Public)--
+
+
+        #endregion
+
+        #region --Misc Methods (Private)--
+
+
+        #endregion
+
+        #region --Misc Methods (Protected)--
+
+
+        #endregion
+        //--------------------------------------------------------Events:---------------------------------------------------------------------\\
+        #region --Events--
+
+
+        #endregion
+    }
+}

XMPP_API/Classes/XMPPClient.cs

@@ -38,6 +38,7 @@ public XmppConnection connection
         public delegate void MessageSendEventHandler(XMPPClient client, MessageSendEventArgs args);
         public delegate void NewBookmarksResultMessageEventHandler(XMPPClient client, NewBookmarksResultMessageEventArgs args);
         public delegate void NewMUCMemberPresenceMessageEventHandler(XMPPClient client, NewMUCMemberPresenceMessageEventArgs args);
+        public delegate void NewMUCPresenceErrorMessageEventHandler(XMPPClient client, NewMUCPresenceErrorMessageEventArgs args);
         public delegate void NewDeliveryReceiptHandler(XMPPClient client, NewDeliveryReceiptEventArgs args);
         public delegate void NewPubSubEventHandler(XMPPClient client, NewPubSubEventEventArgs args);
         public delegate void OmemoSessionBuildErrorEventHandler(XMPPClient client, OmemoSessionBuildErrorEventArgs args);
@@ -49,6 +50,7 @@ public XmppConnection connection
         public event NewChatStateEventHandler NewChatState;
         public event MessageSendEventHandler MessageSend;
         public event NewMUCMemberPresenceMessageEventHandler NewMUCMemberPresenceMessage;
+        public event NewMUCPresenceErrorMessageEventHandler NewMUCPresenceErrorMessage;
         public event NewValidMessageEventHandler NewValidMessage;
         public event NewBookmarksResultMessageEventHandler NewBookmarksResultMessage;
         public event NewDeliveryReceiptHandler NewDeliveryReceipt;
@@ -307,9 +309,13 @@ private void Connection_ConnectionNewValidMessage(IMessageSender sender, NewVali
         private void Connection_ConnectionNewPresenceMessage(IMessageSender connection, NewValidMessageEventArgs args)
         {
             // XEP-0045 (MUC member presence):
-            if (args.MESSAGE is MUCMemberPresenceMessage)
+            if (args.MESSAGE is MUCMemberPresenceMessage mucPresence)
             {
-                NewMUCMemberPresenceMessage?.Invoke(this, new NewMUCMemberPresenceMessageEventArgs(args.MESSAGE as MUCMemberPresenceMessage));
+                NewMUCMemberPresenceMessage?.Invoke(this, new NewMUCMemberPresenceMessageEventArgs(mucPresence));
+            }
+            else if (args.MESSAGE is MUCPresenceErrorMessage mucPresenceError)
+            {
+                NewMUCPresenceErrorMessage?.Invoke(this, new NewMUCPresenceErrorMessageEventArgs(mucPresenceError));
             }
             else
             {

XMPP_API/XMPP_API.csproj

@@ -153,6 +153,7 @@
     <Compile Include="Classes\Network\Events\NewChatMessageEventArgs.cs" />
     <Compile Include="Classes\Network\Events\NewChatStateEventArgs.cs" />
     <Compile Include="Classes\Network\Events\NewDataReceivedEventArgs.cs" />
+    <Compile Include="Classes\Network\Events\NewMUCPresenceErrorMessageEventArgs.cs" />
     <Compile Include="Classes\Network\Events\NewPubSubEventEventArgs.cs" />
     <Compile Include="Classes\Network\Events\NewDeliveryReceiptEventArgs.cs" />
     <Compile Include="Classes\Network\Events\NewDiscoResponseMessageEventArgs.cs" />