Update: Channel Based VC (Same Issues)

RelayServer/Services/ChatTest.cs

@@ -384,29 +384,29 @@ public class ChatTest : WebSocketBehavior
             return;
         }
 
-        var targetClient = Task.Run(async () => await ClientKeyService.GetByUsernameAsync(clientPayload.RecipientUsername))
+        var allKeys = Task.Run(async () => await ClientKeyService.GetAllAsync())
             .GetAwaiter()
             .GetResult();
 
-        if (targetClient is null)
+        foreach (var client in allKeys)
         {
-            Console.WriteLine($"No target RTC client key found for {clientPayload.RecipientUsername}");
-            return;
+            if (client.Username == clientPayload.SenderUsername)
+                continue;
+
+            var encrypted = E2EeHelper.EncryptForRecipient(plainJson, client.PublicKey);
+
+            var outbound = new SocketRtcSignalMessage
+            {
+                Type = "encrypted_rtc_signal",
+                SenderUsername = clientPayload.SenderUsername,
+                ChannelId = clientPayload.ChannelId,
+                CipherText = encrypted.CipherText,
+                Nonce = encrypted.Nonce,
+                Tag = encrypted.Tag,
+                EncryptedKey = encrypted.EncryptedKey
+            };
+
+            Sessions.Broadcast(JsonSerializer.Serialize(outbound));
         }
-
-        var encrypted = E2EeHelper.EncryptForRecipient(plainJson, targetClient.PublicKey);
-
-        var outbound = new SocketRtcSignalMessage
-        {
-            Type = "encrypted_rtc_signal",
-            SenderUsername = clientPayload.SenderUsername,
-            RecipientUsername = clientPayload.RecipientUsername,
-            CipherText = encrypted.CipherText,
-            Nonce = encrypted.Nonce,
-            Tag = encrypted.Tag,
-            EncryptedKey = encrypted.EncryptedKey
-        };
-
-        Sessions.Broadcast(JsonSerializer.Serialize(outbound));
     }
 }