MESSENGER-6171 add federation ui for room invite

bwi/Federation/MXRoom+Federation.swift

@@ -24,7 +24,11 @@ import MatrixSDK
     func getFederationStatus(completion: ((_ isFederated:Bool) -> Void)?)  {
         // #5715 do not show federation for invites
         if (summary != nil && summary.membership == .invite) {
-            completion?(false)
+            if let roomId = summary.roomId {
+                completion?(isRoomIdFederated(roomId: roomId))
+            } else {
+                completion?(false)
+            }
         } else {
             var federationStatus = true
             // Get federated flag
@@ -225,4 +229,20 @@ import MatrixSDK
             } catch { return }
         }
     }
+    
+    func isRoomIdFederated(roomId: String) -> Bool {
+        var isFederated: Bool = false
+        // Check if the room is from the same homeserver
+        if self.mxSession != nil && self.mxSession.myUser != nil {
+            if let myUserId = self.mxSession.myUser.userId {
+                let memberUserIdComponents = roomId.components(separatedBy: ":")
+                let myUserIdComponents = myUserId.components(separatedBy: ":")
+                if memberUserIdComponents.count == 2 && myUserIdComponents.count == 2
+                    && memberUserIdComponents.last !=  myUserIdComponents.last {
+                    isFederated = true
+                }
+            }
+        }
+        return isFederated
+    }
 }