New Cwtch Library Integration

lib/cwtch/cwtch.dart

@@ -29,36 +29,35 @@ abstract class Cwtch {
   void SendAppEvent(String jsonEvent);
 
   // ignore: non_constant_identifier_names
-  void AcceptContact(String profileOnion, String contactHandle);
+  void AcceptContact(String profileOnion, int contactHandle);
   // ignore: non_constant_identifier_names
-  void BlockContact(String profileOnion, String contactHandle);
+  void BlockContact(String profileOnion, int contactHandle);
 
   // ignore: non_constant_identifier_names
-  Future<dynamic> GetMessage(String profile, String handle, int index);
+  Future<dynamic> GetMessage(String profile, int handle, int index);
   // ignore: non_constant_identifier_names
-  Future<dynamic> GetMessageByContentHash(String profile, String handle, String contentHash);
+  Future<dynamic> GetMessageByContentHash(String profile, int handle, String contentHash);
-  // ignore: non_constant_identifier_names
-  void UpdateMessageFlags(String profile, String handle, int index, int flags);
-  // ignore: non_constant_identifier_names
-  void SendMessage(String profile, String handle, String message);
-  // ignore: non_constant_identifier_names
-  void SendInvitation(String profile, String handle, String target);
 
   // ignore: non_constant_identifier_names
-  void ShareFile(String profile, String handle, String filepath);
+  void SendMessage(String profile, int handle, String message);
   // ignore: non_constant_identifier_names
-  void DownloadFile(String profile, String handle, String filepath, String manifestpath, String filekey);
+  void SendInvitation(String profile, int handle, int target);
+
   // ignore: non_constant_identifier_names
-  void CreateDownloadableFile(String profile, String handle, String filenameSuggestion, String filekey);
+  void ShareFile(String profile, int handle, String filepath);
+  // ignore: non_constant_identifier_names
+  void DownloadFile(String profile, int handle, String filepath, String manifestpath, String filekey);
+  // ignore: non_constant_identifier_names
+  void CreateDownloadableFile(String profile, int handle, String filenameSuggestion, String filekey);
   // ignore: non_constant_identifier_names
   void CheckDownloadStatus(String profile, String fileKey);
   // ignore: non_constant_identifier_names
-  void VerifyOrResumeDownload(String profile, String handle, String filekey);
+  void VerifyOrResumeDownload(String profile, int handle, String filekey);
 
   // ignore: non_constant_identifier_names
-  void ArchiveConversation(String profile, String handle);
+  void ArchiveConversation(String profile, int handle);
   // ignore: non_constant_identifier_names
-  void DeleteContact(String profile, String handle);
+  void DeleteContact(String profile, int handle);
 
   // ignore: non_constant_identifier_names
   void CreateGroup(String profile, String server, String groupName);
@@ -66,13 +65,11 @@ abstract class Cwtch {
   // ignore: non_constant_identifier_names
   void ImportBundle(String profile, String bundle);
   // ignore: non_constant_identifier_names
-  void SetGroupAttribute(String profile, String groupHandle, String key, String value);
+  void RejectInvite(String profileOnion, int groupHandle);
-  // ignore: non_constant_identifier_names
-  void RejectInvite(String profileOnion, String groupHandle);
   // ignore: non_constant_identifier_names
   void SetProfileAttribute(String profile, String key, String val);
   // ignore: non_constant_identifier_names
-  void SetContactAttribute(String profile, String contact, String key, String val);
+  void SetConversationAttribute(String profile, int contact, String key, String val);
 
   // ignore: non_constant_identifier_names
   void LoadServers(String password);

lib/cwtch/cwtchNotifier.dart

@@ -34,6 +34,7 @@ class CwtchNotifier {
   }
 
   void handleMessage(String type, dynamic data) {
+    EnvironmentConfig.debugLog("NewEvent $type $data");
     switch (type) {
       case "CwtchStarted":
         appState.SetCwtchInit();
@@ -42,12 +43,15 @@ class CwtchNotifier {
         appState.SetAppError(data["Error"]);
         break;
       case "NewPeer":
+        EnvironmentConfig.debugLog("NewPeer $data");
         // if tag != v1-defaultPassword then it is either encrypted OR it is an unencrypted account created during pre-beta...
         profileCN.add(data["Identity"], data["name"], data["picture"], data["ContactsJson"], data["ServerList"], data["Online"] == "true", data["tag"] != "v1-defaultPassword");
         break;
-      case "PeerCreated":
+      case "ContactCreated":
+        EnvironmentConfig.debugLog("NewServer $data");
         profileCN.getProfile(data["ProfileOnion"])?.contactList.add(ContactInfoState(
               data["ProfileOnion"],
+              data["ConversationID"],
               data["RemotePeer"],
               nickname: data["nick"],
               status: data["status"],
@@ -88,7 +92,7 @@ class CwtchNotifier {
           status = serverInfoState.status;
         }
         if (profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["GroupID"]) == null) {
-          profileCN.getProfile(data["ProfileOnion"])?.contactList.add(ContactInfoState(data["ProfileOnion"], data["GroupID"],
+          profileCN.getProfile(data["ProfileOnion"])?.contactList.add(ContactInfoState(data["ProfileOnion"], data["ConversationID"], data["GroupID"],
               authorization: ContactAuthorization.approved,
               imagePath: data["PicturePath"],
               nickname: data["GroupName"],
@@ -111,13 +115,13 @@ class CwtchNotifier {
         }
         break;
       case "DeleteContact":
-        profileCN.getProfile(data["ProfileOnion"])?.contactList.removeContact(data["RemotePeer"]);
+        profileCN.getProfile(data["ProfileOnion"])?.contactList.removeContact(data["ConversationID"]);
         break;
       case "DeleteGroup":
-        profileCN.getProfile(data["ProfileOnion"])?.contactList.removeContact(data["GroupID"]);
+        profileCN.getProfile(data["ProfileOnion"])?.contactList.removeContact(data["ConversationID"]);
         break;
       case "PeerStateChange":
-        ContactInfoState? contact = profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"]);
+        ContactInfoState? contact = profileCN.getProfile(data["ProfileOnion"])?.contactList.findContact(data["RemotePeer"]);
         if (contact != null) {
           if (data["ConnectionState"] != null) {
             contact.status = data["ConnectionState"];
@@ -131,19 +135,20 @@ class CwtchNotifier {
         break;
       case "NewMessageFromPeer":
         notificationManager.notify("New Message From Peer!");
-        if (appState.selectedProfile != data["ProfileOnion"] || appState.selectedConversation != data["RemotePeer"]) {
+        var identifier = int.parse(data["ConversationID"]);
-          profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"])!.unreadMessages++;
+        if (appState.selectedProfile != data["ProfileOnion"] || appState.selectedConversation != identifier) {
+          profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.unreadMessages++;
         } else {
-          profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"])!.newMarker++;
+          profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.newMarker++;
         }
-        profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"])!.totalMessages++;
+        profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.totalMessages++;
-        profileCN.getProfile(data["ProfileOnion"])?.contactList.updateLastMessageTime(data["RemotePeer"], DateTime.now());
+        profileCN.getProfile(data["ProfileOnion"])?.contactList.updateLastMessageTime(identifier, DateTime.now());
 
         // We only ever see messages from authenticated peers.
         // If the contact is marked as offline then override this - can happen when the contact is removed from the front
         // end during syncing.
-        if (profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"])!.isOnline() == false) {
+        if (profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.isOnline() == false) {
-          profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"])!.status = "Authenticated";
+          profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.status = "Authenticated";
         }
 
         break;
@@ -151,10 +156,13 @@ class CwtchNotifier {
         // We don't use these anymore, IndexedAcknowledgement is more suited to the UI front end...
         break;
       case "IndexedAcknowledgement":
-        var idx = data["Index"];
+        var messageID = data["Index"];
+        var identifier = int.parse(data["ConversationID"]);
+        var idx  = identifier.toString() + messageID;
+
         // We return -1 for protocol message acks if there is no message
         if (idx == "-1") break;
-        var key = profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"])!.getMessageKey(idx);
+        var key = profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.getMessageKey(idx);
         if (key == null) break;
         try {
           var message = Provider.of<MessageMetadata>(key.currentContext!, listen: false);
@@ -162,8 +170,8 @@ class CwtchNotifier {
           // We only ever see acks from authenticated peers.
           // If the contact is marked as offline then override this - can happen when the contact is removed from the front
           // end during syncing.
-          if (profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"])!.isOnline() == false) {
+          if (profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.isOnline() == false) {
-            profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"])!.status = "Authenticated";
+            profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.status = "Authenticated";
           }
           message.ackd = true;
         } catch (e) {
@@ -172,19 +180,20 @@ class CwtchNotifier {
         }
         break;
       case "NewMessageFromGroup":
+        var identifier = int.parse(data["ConversationID"]);
         if (data["ProfileOnion"] != data["RemotePeer"]) {
           var idx = int.parse(data["Index"]);
-          var currentTotal = profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["GroupID"])!.totalMessages;
+          var currentTotal = profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.totalMessages;
 
           // Only bother to do anything if we know about the group and the provided index is greater than our current total...
           if (currentTotal != null && idx >= currentTotal) {
-            profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["GroupID"])!.totalMessages = idx + 1;
+            profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.totalMessages = idx + 1;
 
             //if not currently open
-            if (appState.selectedProfile != data["ProfileOnion"] || appState.selectedConversation != data["GroupID"]) {
+            if (appState.selectedProfile != data["ProfileOnion"] || appState.selectedConversation != identifier) {
-              profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["GroupID"])!.unreadMessages++;
+              profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.unreadMessages++;
             } else {
-              profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["GroupID"])!.newMarker++;
+              profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)!.newMarker++;
             }
 
             var timestampSent = DateTime.tryParse(data['TimestampSent'])!;
@@ -204,7 +213,7 @@ class CwtchNotifier {
         } else {
           // from me (already displayed - do not update counter)
           var idx = data["Signature"];
-          var key = profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["GroupID"])?.getMessageKey(idx);
+          var key = profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(identifier)?.getMessageKey(idx);
           if (key == null) break;
           try {
             var message = Provider.of<MessageMetadata>(key.currentContext!, listen: false);
@@ -219,8 +228,8 @@ class CwtchNotifier {
         var contactHandle = data["RemotePeer"];
         if (contactHandle == null || contactHandle == "") contactHandle = data["GroupID"];
         var total = int.parse(data["Data"]);
-        if (total != profileCN.getProfile(data["Identity"])?.contactList.getContact(contactHandle)!.totalMessages) {
+        if (total != profileCN.getProfile(data["Identity"])?.contactList.findContact(contactHandle)!.totalMessages) {
-          profileCN.getProfile(data["Identity"])?.contactList.getContact(contactHandle)!.totalMessages = total;
+          profileCN.getProfile(data["Identity"])?.contactList.findContact(contactHandle)!.totalMessages = total;
         }
         break;
       case "SendMessageToPeerError":
@@ -228,7 +237,7 @@ class CwtchNotifier {
         break;
       case "IndexedFailure":
         var idx = data["Index"];
-        var key = profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["RemotePeer"])?.getMessageKey(idx);
+        var key = profileCN.getProfile(data["ProfileOnion"])?.contactList.findContact(data["RemotePeer"])?.getMessageKey(idx);
         try {
           var message = Provider.of<MessageMetadata>(key!.currentContext!, listen: false);
           message.error = true;
@@ -240,7 +249,7 @@ class CwtchNotifier {
         // from me (already displayed - do not update counter)
         EnvironmentConfig.debugLog("SendMessageToGroupError");
         var idx = data["Signature"];
-        var key = profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(data["GroupID"])!.getMessageKey(idx);
+        var key = profileCN.getProfile(data["ProfileOnion"])?.contactList.findContact(data["GroupID"])!.getMessageKey(idx);
         if (key == null) break;
         try {
           var message = Provider.of<MessageMetadata>(key.currentContext!, listen: false);
@@ -298,8 +307,8 @@ class CwtchNotifier {
             status = serverInfoState.status;
           }
 
-          if (profileCN.getProfile(data["ProfileOnion"])?.contactList.getContact(groupInvite["GroupID"]) == null) {
+          if (profileCN.getProfile(data["ProfileOnion"])?.contactList.findContact(groupInvite["GroupID"]) == null) {
-            profileCN.getProfile(data["ProfileOnion"])?.contactList.add(ContactInfoState(data["ProfileOnion"], groupInvite["GroupID"],
+            profileCN.getProfile(data["ProfileOnion"])?.contactList.add(ContactInfoState(data["ProfileOnion"],  data["ConversationID"], groupInvite["GroupID"],
                 authorization: ContactAuthorization.approved,
                 imagePath: data["PicturePath"],
                 nickname: groupInvite["GroupName"],

lib/cwtch/ffi.dart

@@ -36,8 +36,9 @@ typedef VoidFromStringStringStringFn = void Function(Pointer<Utf8>, int, Pointer
 typedef void_from_string_string_string_string_function = Void Function(Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32);
 typedef VoidFromStringStringStringStringFn = void Function(Pointer<Utf8>, int, Pointer<Utf8>, int, Pointer<Utf8>, int, Pointer<Utf8>, int);
 
-typedef void_from_string_string_string_string_string_function = Void Function(Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32);
+// DownloadFile
-typedef VoidFromStringStringStringStringStringFn = void Function(Pointer<Utf8>, int, Pointer<Utf8>, int, Pointer<Utf8>, int, Pointer<Utf8>, int, Pointer<Utf8>, int);
+typedef void_from_string_int_string_string_string_function = Void Function(Pointer<Utf8>, Int32, Int32, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32);
+typedef VoidFromStringIntStringStringStringFn = void Function(Pointer<Utf8>, int, int, Pointer<Utf8>, int, Pointer<Utf8>, int, Pointer<Utf8>, int);
 
 typedef void_from_string_string_int_int_function = Void Function(Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Int64, Int64);
 typedef VoidFromStringStringIntIntFn = void Function(Pointer<Utf8>, int, Pointer<Utf8>, int, int, int);
@@ -51,6 +52,9 @@ typedef StringFn = void Function(Pointer<Utf8> dir, int);
 typedef string_string_to_void_function = Void Function(Pointer<Utf8> str, Int32 length, Pointer<Utf8> str2, Int32 length2);
 typedef StringStringFn = void Function(Pointer<Utf8>, int, Pointer<Utf8>, int);
 
+typedef string_int_to_void_function = Void Function(Pointer<Utf8> str, Int32 length, Int32 handle);
+typedef VoidFromStringIntFn = void Function(Pointer<Utf8>, int, int);
+
 typedef get_json_blob_string_function = Pointer<Utf8> Function(Pointer<Utf8> str, Int32 length);
 typedef GetJsonBlobStringFn = Pointer<Utf8> Function(Pointer<Utf8> str, int len);
 
@@ -58,10 +62,26 @@ typedef GetJsonBlobStringFn = Pointer<Utf8> Function(Pointer<Utf8> str, int len)
 typedef get_json_blob_from_str_str_int_function = Pointer<Utf8> Function(Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Int32);
 typedef GetJsonBlobFromStrStrIntFn = Pointer<Utf8> Function(Pointer<Utf8>, int, Pointer<Utf8>, int, int);
 
+typedef get_json_blob_from_str_int_int_function = Pointer<Utf8> Function(Pointer<Utf8>, Int32, Int32, Int32);
+typedef GetJsonBlobFromStrIntIntFn = Pointer<Utf8> Function(Pointer<Utf8>, int,  int, int);
+
+typedef get_json_blob_from_str_int_string_function = Pointer<Utf8> Function(Pointer<Utf8>, Int32, Int32, Pointer<Utf8>, Int32);
+typedef GetJsonBlobFromStrIntStringFn = Pointer<Utf8> Function(Pointer<Utf8>, int,  int, Pointer<Utf8>, int,);
+
 // func c_GetMessagesByContentHash(profile_ptr *C.char, profile_len C.int, handle_ptr *C.char, handle_len C.int, contenthash_ptr *C.char, contenthash_len C.int) *C.char
 typedef get_json_blob_from_str_str_str_function = Pointer<Utf8> Function(Pointer<Utf8>, Int32, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32);
 typedef GetJsonBlobFromStrStrStrFn = Pointer<Utf8> Function(Pointer<Utf8>, int, Pointer<Utf8>, int, Pointer<Utf8>, int);
 
+typedef void_from_string_int_string_function = Void Function(Pointer<Utf8>, Int32, Int32, Pointer<Utf8>, Int32);
+typedef VoidFromStringIntStringFn = void Function(Pointer<Utf8>, int, int, Pointer<Utf8>, int);
+
+typedef void_from_string_int_string_string_function = Void Function(Pointer<Utf8>, Int32, Int32, Pointer<Utf8>, Int32, Pointer<Utf8>, Int32);
+typedef VoidFromStringIntStringStringFn = void Function(Pointer<Utf8>, int, int, Pointer<Utf8>, int, Pointer<Utf8>, int);
+
+typedef void_from_string_int_int_function =Void Function(Pointer<Utf8>, Int32, Int32, Int32);
+typedef VoidFromStringIntIntFn = void Function(Pointer<Utf8>, int, int, int);
+
+
 typedef appbus_events_function = Pointer<Utf8> Function();
 typedef AppbusEventsFn = Pointer<Utf8> Function();
 
@@ -266,17 +286,15 @@ class CwtchFfi implements Cwtch {
   }
 
   // ignore: non_constant_identifier_names
-  Future<String> GetMessage(String profile, String handle, int index) async {
+  Future<String> GetMessage(String profile, int handle, int index) async {
-    var getMessageC = library.lookup<NativeFunction<get_json_blob_from_str_str_int_function>>("c_GetMessage");
+    var getMessageC = library.lookup<NativeFunction<get_json_blob_from_str_int_int_function>>("c_GetMessage");
     // ignore: non_constant_identifier_names
-    final GetMessage = getMessageC.asFunction<GetJsonBlobFromStrStrIntFn>();
+    final GetMessage = getMessageC.asFunction<GetJsonBlobFromStrIntIntFn>();
     final utf8profile = profile.toNativeUtf8();
-    final utf8handle = handle.toNativeUtf8();
+    Pointer<Utf8> jsonMessageBytes = GetMessage(utf8profile, utf8profile.length, handle, index);
-    Pointer<Utf8> jsonMessageBytes = GetMessage(utf8profile, utf8profile.length, utf8handle, utf8handle.length, index);
     String jsonMessage = jsonMessageBytes.toDartString();
     _UnsafeFreePointerAnyUseOfThisFunctionMustBeDoubleApproved(jsonMessageBytes);
     malloc.free(utf8profile);
-    malloc.free(utf8handle);
     return jsonMessage;
   }
 
@@ -306,89 +324,75 @@ class CwtchFfi implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void AcceptContact(String profileOnion, String contactHandle) {
+  void AcceptContact(String profileOnion, int contactHandle) {
-    var acceptContact = library.lookup<NativeFunction<string_string_to_void_function>>("c_AcceptContact");
+    var acceptContact = library.lookup<NativeFunction<string_int_to_void_function>>("c_AcceptContact");
     // ignore: non_constant_identifier_names
-    final AcceptContact = acceptContact.asFunction<VoidFromStringStringFn>();
+    final AcceptContact = acceptContact.asFunction<VoidFromStringIntFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = contactHandle.toNativeUtf8();
+    AcceptContact(u1, u1.length, contactHandle);
-    AcceptContact(u1, u1.length, u2, u2.length);
     malloc.free(u1);
-    malloc.free(u2);
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void BlockContact(String profileOnion, String contactHandle) {
+  void BlockContact(String profileOnion, int contactHandle) {
-    var blockContact = library.lookup<NativeFunction<string_string_to_void_function>>("c_BlockContact");
+    var blockContact = library.lookup<NativeFunction<string_int_to_void_function>>("c_BlockContact");
     // ignore: non_constant_identifier_names
-    final BlockContact = blockContact.asFunction<VoidFromStringStringFn>();
+    final BlockContact = blockContact.asFunction<VoidFromStringIntFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = contactHandle.toNativeUtf8();
+    BlockContact(u1, u1.length, contactHandle);
-    BlockContact(u1, u1.length, u2, u2.length);
     malloc.free(u1);
-    malloc.free(u2);
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void SendMessage(String profileOnion, String contactHandle, String message) {
+  void SendMessage(String profileOnion, int contactHandle, String message) {
-    var sendMessage = library.lookup<NativeFunction<void_from_string_string_string_function>>("c_SendMessage");
+    var sendMessage = library.lookup<NativeFunction<void_from_string_int_string_function>>("c_SendMessage");
     // ignore: non_constant_identifier_names
-    final SendMessage = sendMessage.asFunction<VoidFromStringStringStringFn>();
+    final SendMessage = sendMessage.asFunction<VoidFromStringIntStringFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = contactHandle.toNativeUtf8();
     final u3 = message.toNativeUtf8();
-    SendMessage(u1, u1.length, u2, u2.length, u3, u3.length);
+    SendMessage(u1, u1.length, contactHandle, u3, u3.length);
     malloc.free(u1);
-    malloc.free(u2);
     malloc.free(u3);
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void SendInvitation(String profileOnion, String contactHandle, String target) {
+  void SendInvitation(String profileOnion, int contactHandle, int target) {
-    var sendInvitation = library.lookup<NativeFunction<void_from_string_string_string_function>>("c_SendInvitation");
+    var sendInvitation = library.lookup<NativeFunction<void_from_string_int_int_function>>("c_SendInvitation");
     // ignore: non_constant_identifier_names
-    final SendInvitation = sendInvitation.asFunction<VoidFromStringStringStringFn>();
+    final SendInvitation = sendInvitation.asFunction<VoidFromStringIntIntFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = contactHandle.toNativeUtf8();
+    SendInvitation(u1, u1.length, contactHandle, target);
-    final u3 = target.toNativeUtf8();
-    SendInvitation(u1, u1.length, u2, u2.length, u3, u3.length);
     malloc.free(u1);
-    malloc.free(u2);
-    malloc.free(u3);
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void ShareFile(String profileOnion, String contactHandle, String filepath) {
+  void ShareFile(String profileOnion, int contactHandle, String filepath) {
-    var shareFile = library.lookup<NativeFunction<void_from_string_string_string_function>>("c_ShareFile");
+    var shareFile = library.lookup<NativeFunction<void_from_string_int_string_function>>("c_ShareFile");
     // ignore: non_constant_identifier_names
-    final ShareFile = shareFile.asFunction<VoidFromStringStringStringFn>();
+    final ShareFile = shareFile.asFunction<VoidFromStringIntStringFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = contactHandle.toNativeUtf8();
     final u3 = filepath.toNativeUtf8();
-    ShareFile(u1, u1.length, u2, u2.length, u3, u3.length);
+    ShareFile(u1, u1.length, contactHandle, u3, u3.length);
     malloc.free(u1);
-    malloc.free(u2);
     malloc.free(u3);
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void DownloadFile(String profileOnion, String contactHandle, String filepath, String manifestpath, String filekey) {
+  void DownloadFile(String profileOnion, int contactHandle, String filepath, String manifestpath, String filekey) {
-    var dlFile = library.lookup<NativeFunction<void_from_string_string_string_string_string_function>>("c_DownloadFile");
+    var dlFile = library.lookup<NativeFunction<void_from_string_int_string_string_string_function>>("c_DownloadFile");
     // ignore: non_constant_identifier_names
-    final DownloadFile = dlFile.asFunction<VoidFromStringStringStringStringStringFn>();
+    final DownloadFile = dlFile.asFunction<VoidFromStringIntStringStringStringFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = contactHandle.toNativeUtf8();
     final u3 = filepath.toNativeUtf8();
     final u4 = manifestpath.toNativeUtf8();
     final u5 = filekey.toNativeUtf8();
-    DownloadFile(u1, u1.length, u2, u2.length, u3, u3.length, u4, u4.length, u5, u5.length);
+    DownloadFile(u1, u1.length, contactHandle, u3, u3.length, u4, u4.length, u5, u5.length);
     malloc.free(u1);
-    malloc.free(u2);
     malloc.free(u3);
     malloc.free(u4);
     malloc.free(u5);
@@ -396,7 +400,7 @@ class CwtchFfi implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void CreateDownloadableFile(String profileOnion, String contactHandle, String filenameSuggestion, String filekey) {
+  void CreateDownloadableFile(String profileOnion, int contactHandle, String filenameSuggestion, String filekey) {
     // android only - do nothing
   }
 
@@ -415,16 +419,14 @@ class CwtchFfi implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void VerifyOrResumeDownload(String profileOnion, String contactHandle, String filekey) {
+  void VerifyOrResumeDownload(String profileOnion, int contactHandle, String filekey) {
-    var fn = library.lookup<NativeFunction<void_from_string_string_string_function>>("c_VerifyOrResumeDownload");
+    var fn = library.lookup<NativeFunction<void_from_string_int_string_function>>("c_VerifyOrResumeDownload");
     // ignore: non_constant_identifier_names
-    final VerifyOrResumeDownload = fn.asFunction<VoidFromStringStringStringFn>();
+    final VerifyOrResumeDownload = fn.asFunction<VoidFromStringIntStringFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = contactHandle.toNativeUtf8();
     final u3 = filekey.toNativeUtf8();
-    VerifyOrResumeDownload(u1, u1.length, u2, u2.length, u3, u3.length);
+    VerifyOrResumeDownload(u1, u1.length, contactHandle, u3, u3.length);
     malloc.free(u1);
-    malloc.free(u2);
     malloc.free(u3);
   }
 
@@ -451,34 +453,16 @@ class CwtchFfi implements Cwtch {
     malloc.free(u2);
   }
 
-  @override
-  // ignore: non_constant_identifier_names
-  void SetGroupAttribute(String profileOnion, String groupHandle, String key, String value) {
-    var setGroupAttribute = library.lookup<NativeFunction<void_from_string_string_string_string_function>>("c_SetGroupAttribute");
-    // ignore: non_constant_identifier_names
-    final SetGroupAttribute = setGroupAttribute.asFunction<VoidFromStringStringStringStringFn>();
-    final u1 = profileOnion.toNativeUtf8();
-    final u2 = groupHandle.toNativeUtf8();
-    final u3 = key.toNativeUtf8();
-    final u4 = value.toNativeUtf8();
-    SetGroupAttribute(u1, u1.length, u2, u2.length, u3, u3.length, u4, u4.length);
-    malloc.free(u1);
-    malloc.free(u2);
-    malloc.free(u3);
-    malloc.free(u4);
-  }
 
   @override
   // ignore: non_constant_identifier_names
-  void RejectInvite(String profileOnion, String groupHandle) {
+  void RejectInvite(String profileOnion, int groupHandle) {
-    var rejectInvite = library.lookup<NativeFunction<string_string_to_void_function>>("c_RejectInvite");
+    var rejectInvite = library.lookup<NativeFunction<string_int_to_void_function>>("c_RejectInvite");
     // ignore: non_constant_identifier_names
-    final RejectInvite = rejectInvite.asFunction<VoidFromStringStringFn>();
+    final RejectInvite = rejectInvite.asFunction<VoidFromStringIntFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = groupHandle.toNativeUtf8();
+    RejectInvite(u1, u1.length, groupHandle);
-    RejectInvite(u1, u1.length, u2, u2.length);
     malloc.free(u1);
-    malloc.free(u2);
   }
 
   @override
@@ -499,42 +483,27 @@ class CwtchFfi implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void ArchiveConversation(String profileOnion, String handle) {
+  void ArchiveConversation(String profileOnion, int handle) {
-    var archiveConversation = library.lookup<NativeFunction<string_string_to_void_function>>("c_ArchiveConversation");
+    var archiveConversation = library.lookup<NativeFunction<string_int_to_void_function>>("c_ArchiveConversation");
     // ignore: non_constant_identifier_names
-    final ArchiveConversation = archiveConversation.asFunction<VoidFromStringStringFn>();
+    final ArchiveConversation = archiveConversation.asFunction<VoidFromStringIntFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = handle.toNativeUtf8();
+    ArchiveConversation(u1, u1.length, handle);
-    ArchiveConversation(u1, u1.length, u2, u2.length);
     malloc.free(u1);
-    malloc.free(u2);
+
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void DeleteContact(String profileOnion, String handle) {
+  void DeleteContact(String profileOnion, int handle) {
-    var deleteContact = library.lookup<NativeFunction<string_string_to_void_function>>("c_DeleteContact");
+    var deleteContact = library.lookup<NativeFunction<string_int_to_void_function>>("c_DeleteContact");
     // ignore: non_constant_identifier_names
-    final DeleteContact = deleteContact.asFunction<VoidFromStringStringFn>();
+    final DeleteContact = deleteContact.asFunction<VoidFromStringIntFn>();
     final u1 = profileOnion.toNativeUtf8();
-    final u2 = handle.toNativeUtf8();
+    DeleteContact(u1, u1.length, handle);
-    DeleteContact(u1, u1.length, u2, u2.length);
     malloc.free(u1);
-    malloc.free(u2);
   }
 
-  @override
-  // ignore: non_constant_identifier_names
-  void UpdateMessageFlags(String profile, String handle, int index, int flags) {
-    var updateMessageFlagsC = library.lookup<NativeFunction<void_from_string_string_int_int_function>>("c_UpdateMessageFlags");
-    // ignore: non_constant_identifier_names
-    final updateMessageFlags = updateMessageFlagsC.asFunction<VoidFromStringStringIntIntFn>();
-    final utf8profile = profile.toNativeUtf8();
-    final utf8handle = handle.toNativeUtf8();
-    updateMessageFlags(utf8profile, utf8profile.length, utf8handle, utf8handle.length, index, flags);
-    malloc.free(utf8profile);
-    malloc.free(utf8handle);
-  }
 
   @override
   // ignore: non_constant_identifier_names
@@ -566,17 +535,15 @@ class CwtchFfi implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void SetContactAttribute(String profile, String contact, String key, String val) {
+  void SetConversationAttribute(String profile, int contact, String key, String val) {
-    var setContactAttribute = library.lookup<NativeFunction<void_from_string_string_string_string_function>>("c_SetContactAttribute");
+    var setContactAttribute = library.lookup<NativeFunction<void_from_string_int_string_string_function>>("c_SetContactAttribute");
     // ignore: non_constant_identifier_names
-    final SetContactAttribute = setContactAttribute.asFunction<VoidFromStringStringStringStringFn>();
+    final SetContactAttribute = setContactAttribute.asFunction<VoidFromStringIntStringStringFn>();
     final u1 = profile.toNativeUtf8();
-    final u2 = contact.toNativeUtf8();
     final u3 = key.toNativeUtf8();
     final u4 = key.toNativeUtf8();
-    SetContactAttribute(u1, u1.length, u2, u2.length, u3, u3.length, u4, u4.length);
+    SetContactAttribute(u1, u1.length, contact, u3, u3.length, u4, u4.length);
     malloc.free(u1);
-    malloc.free(u2);
     malloc.free(u3);
     malloc.free(u4);
   }
@@ -703,19 +670,17 @@ class CwtchFfi implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  Future GetMessageByContentHash(String profile, String handle, String contentHash) async {
+  Future GetMessageByContentHash(String profile, int handle, String contentHash) async {
-    var getMessagesByContentHashC = library.lookup<NativeFunction<get_json_blob_from_str_str_str_function>>("c_GetMessagesByContentHash");
+    var getMessagesByContentHashC = library.lookup<NativeFunction<get_json_blob_from_str_int_string_function>>("c_GetMessagesByContentHash");
     // ignore: non_constant_identifier_names
-    final GetMessagesByContentHash = getMessagesByContentHashC.asFunction<GetJsonBlobFromStrStrStrFn>();
+    final GetMessagesByContentHash = getMessagesByContentHashC.asFunction<GetJsonBlobFromStrIntStringFn>();
     final utf8profile = profile.toNativeUtf8();
-    final utf8handle = handle.toNativeUtf8();
     final utf8contentHash = contentHash.toNativeUtf8();
-    Pointer<Utf8> jsonMessageBytes = GetMessagesByContentHash(utf8profile, utf8profile.length, utf8handle, utf8handle.length, utf8contentHash, utf8contentHash.length);
+    Pointer<Utf8> jsonMessageBytes = GetMessagesByContentHash(utf8profile, utf8profile.length, handle, utf8contentHash, utf8contentHash.length);
     String jsonMessage = jsonMessageBytes.toDartString();
 
     _UnsafeFreePointerAnyUseOfThisFunctionMustBeDoubleApproved(jsonMessageBytes);
     malloc.free(utf8profile);
-    malloc.free(utf8handle);
     malloc.free(utf8contentHash);
     return jsonMessage;
   }

lib/cwtch/gomobile.dart

@@ -87,7 +87,7 @@ class CwtchGomobile implements Cwtch {
   }
 
   // ignore: non_constant_identifier_names
-  Future<dynamic> GetMessage(String profile, String handle, int index) {
+  Future<dynamic> GetMessage(String profile, int handle, int index) {
     print("gomobile.dart GetMessage " + index.toString());
     return cwtchPlatform.invokeMethod("GetMessage", {"profile": profile, "contact": handle, "index": index});
   }
@@ -109,42 +109,42 @@ class CwtchGomobile implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void AcceptContact(String profileOnion, String contactHandle) {
+  void AcceptContact(String profileOnion, int contactHandle) {
     cwtchPlatform.invokeMethod("AcceptContact", {"ProfileOnion": profileOnion, "handle": contactHandle});
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void BlockContact(String profileOnion, String contactHandle) {
+  void BlockContact(String profileOnion, int contactHandle) {
     cwtchPlatform.invokeMethod("BlockContact", {"ProfileOnion": profileOnion, "handle": contactHandle});
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void SendMessage(String profileOnion, String contactHandle, String message) {
+  void SendMessage(String profileOnion, int contactHandle, String message) {
     cwtchPlatform.invokeMethod("SendMessage", {"ProfileOnion": profileOnion, "handle": contactHandle, "message": message});
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void SendInvitation(String profileOnion, String contactHandle, String target) {
+  void SendInvitation(String profileOnion, int contactHandle, int target) {
     cwtchPlatform.invokeMethod("SendInvitation", {"ProfileOnion": profileOnion, "handle": contactHandle, "target": target});
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void ShareFile(String profileOnion, String contactHandle, String filepath) {
+  void ShareFile(String profileOnion, int contactHandle, String filepath) {
     cwtchPlatform.invokeMethod("ShareFile", {"ProfileOnion": profileOnion, "handle": contactHandle, "filepath": filepath});
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void DownloadFile(String profileOnion, String contactHandle, String filepath, String manifestpath, String filekey) {
+  void DownloadFile(String profileOnion, int contactHandle, String filepath, String manifestpath, String filekey) {
     cwtchPlatform.invokeMethod("DownloadFile", {"ProfileOnion": profileOnion, "handle": contactHandle, "filepath": filepath, "manifestpath": manifestpath, "filekey": filekey});
   }
 
   // ignore: non_constant_identifier_names
-  void CreateDownloadableFile(String profileOnion, String contactHandle, String filenameSuggestion, String filekey) {
+  void CreateDownloadableFile(String profileOnion, int contactHandle, String filenameSuggestion, String filekey) {
     cwtchPlatform.invokeMethod("CreateDownloadableFile", {"ProfileOnion": profileOnion, "handle": contactHandle, "filename": filenameSuggestion, "filekey": filekey});
   }
 
@@ -156,7 +156,7 @@ class CwtchGomobile implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void VerifyOrResumeDownload(String profileOnion, String contactHandle, String filekey) {
+  void VerifyOrResumeDownload(String profileOnion, int contactHandle, String filekey) {
     cwtchPlatform.invokeMethod("VerifyOrResumeDownload", {"ProfileOnion": profileOnion, "handle": contactHandle, "filekey": filekey});
   }
 
@@ -180,7 +180,7 @@ class CwtchGomobile implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void RejectInvite(String profileOnion, String groupHandle) {
+  void RejectInvite(String profileOnion, int groupHandle) {
     cwtchPlatform.invokeMethod("RejectInvite", {"ProfileOnion": profileOnion, "groupHandle": groupHandle});
   }
 
@@ -191,21 +191,16 @@ class CwtchGomobile implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void DeleteContact(String profileOnion, String handle) {
+  void DeleteContact(String profileOnion, int handle) {
     cwtchPlatform.invokeMethod("DeleteContact", {"ProfileOnion": profileOnion, "handle": handle});
   }
 
   @override
   // ignore: non_constant_identifier_names
-  void ArchiveConversation(String profileOnion, String contactHandle) {
+  void ArchiveConversation(String profileOnion, int contactHandle) {
     cwtchPlatform.invokeMethod("ArchiveConversation", {"ProfileOnion": profileOnion, "handle": contactHandle});
   }
 
-  @override
-  void UpdateMessageFlags(String profile, String handle, int index, int flags) {
-    print("gomobile.dart UpdateMessageFlags " + index.toString());
-    cwtchPlatform.invokeMethod("UpdateMessageFlags", {"profile": profile, "contact": handle, "midx": index, "flags": flags});
-  }
 
   @override
   // ignore: non_constant_identifier_names
@@ -215,7 +210,7 @@ class CwtchGomobile implements Cwtch {
 
   @override
   // ignore: non_constant_identifier_names
-  void SetContactAttribute(String profile, String contact, String key, String val) {
+  void SetConversationAttribute(String profile, int contact, String key, String val) {
     cwtchPlatform.invokeMethod("SetContactAttribute", {"ProfileOnion": profile, "Contact": contact, "Key": key, "Val": val});
   }
 
@@ -280,7 +275,7 @@ class CwtchGomobile implements Cwtch {
   }
 
   @override
-  Future GetMessageByContentHash(String profile, String handle, String contentHash) {
+  Future GetMessageByContentHash(String profile, int handle, String contentHash) {
     return cwtchPlatform.invokeMethod("GetMessageByContentHash", {"profile": profile, "contact": handle, "contentHash": contentHash});
   }
 }

lib/model.dart

@@ -29,7 +29,7 @@ class AppState extends ChangeNotifier {
   bool cwtchIsClosing = false;
   String appError = "";
   String? _selectedProfile;
-  String? _selectedConversation;
+  int? _selectedConversation;
   int _initialScrollIndex = 0;
   int _hoveredIndex = -1;
   int? _selectedIndex;
@@ -51,8 +51,8 @@ class AppState extends ChangeNotifier {
     notifyListeners();
   }
 
-  String? get selectedConversation => _selectedConversation;
+  int? get selectedConversation => _selectedConversation;
-  set selectedConversation(String? newVal) {
+  set selectedConversation(int? newVal) {
     this._selectedConversation = newVal;
     notifyListeners();
   }
@@ -172,8 +172,8 @@ class ContactListState extends ChangeNotifier {
     //} </todo>
   }
 
-  void updateLastMessageTime(String forOnion, DateTime newMessageTime) {
+  void updateLastMessageTime(int forIdentifier, DateTime newMessageTime) {
-    var contact = getContact(forOnion);
+    var contact = getContact(forIdentifier);
     if (contact == null) return;
 
     // Assert that the new time is after the current last message time AND that
@@ -191,18 +191,24 @@ class ContactListState extends ChangeNotifier {
 
   List<ContactInfoState> get contacts => _contacts.sublist(0); //todo: copy?? dont want caller able to bypass changenotifier
 
-  ContactInfoState? getContact(String onion) {
+  ContactInfoState? getContact(int identifier) {
-    int idx = _contacts.indexWhere((element) => element.onion == onion);
+    int idx = _contacts.indexWhere((element) => element.identifier == identifier);
     return idx >= 0 ? _contacts[idx] : null;
   }
 
-  void removeContact(String onion) {
+  void removeContact(int identifier) {
-    int idx = _contacts.indexWhere((element) => element.onion == onion);
+    int idx = _contacts.indexWhere((element) => element.identifier == identifier);
     if (idx >= 0) {
       _contacts.removeAt(idx);
       notifyListeners();
     }
   }
+
+  ContactInfoState? findContact(String byHandle) {
+    int idx = _contacts.indexWhere((element) => element.onion == byHandle);
+    return idx >= 0 ? _contacts[idx] : null;
+  }
+
 }
 
 class ProfileInfoState extends ChangeNotifier {
@@ -238,7 +244,7 @@ class ProfileInfoState extends ChangeNotifier {
     if (contactsJson != null && contactsJson != "" && contactsJson != "null") {
       List<dynamic> contacts = jsonDecode(contactsJson);
       this._contacts.addAll(contacts.map((contact) {
-        return ContactInfoState(this.onion, contact["onion"],
+        return ContactInfoState(this.onion, contact["identifier"], contact["onion"],
             nickname: contact["name"],
             status: contact["status"],
             imagePath: contact["picture"],
@@ -254,7 +260,7 @@ class ProfileInfoState extends ChangeNotifier {
 
       // dummy set to invoke sort-on-load
       if (this._contacts.num > 0) {
-        this._contacts.updateLastMessageTime(this._contacts._contacts.first.onion, this._contacts._contacts.first.lastMessageTime);
+        this._contacts.updateLastMessageTime(this._contacts._contacts.first.identifier, this._contacts._contacts.first.lastMessageTime);
       }
     }
 
@@ -341,6 +347,7 @@ class ProfileInfoState extends ChangeNotifier {
         } else {
           this._contacts.add(ContactInfoState(
                 this.onion,
+                contact["identifier"],
                 contact["onion"],
                 nickname: contact["name"],
                 status: contact["status"],
@@ -496,6 +503,7 @@ ContactAuthorization stringToContactAuthorization(String authStr) {
 
 class ContactInfoState extends ChangeNotifier {
   final String profileOnion;
+  final int identifier;
   final String onion;
   late String _nickname;
 
@@ -515,7 +523,7 @@ class ContactInfoState extends ChangeNotifier {
   String? _server;
   late bool _archived;
 
-  ContactInfoState(this.profileOnion, this.onion,
+  ContactInfoState(this.profileOnion, this.identifier, this.onion,
       {nickname = "",
       isGroup = false,
       authorization = ContactAuthorization.unknown,

lib/models/message.dart

@@ -31,11 +31,11 @@ abstract class Message {
   Widget getPreviewWidget(BuildContext context);
 }
 
-Future<Message> messageHandler(BuildContext context, String profileOnion, String contactHandle, int index) {
+Future<Message> messageHandler(BuildContext context, String profileOnion, int conversationIdentifier, int index) {
   try {
-    var rawMessageEnvelopeFuture = Provider.of<FlwtchState>(context, listen: false).cwtch.GetMessage(profileOnion, contactHandle, index);
+    var rawMessageEnvelopeFuture = Provider.of<FlwtchState>(context, listen: false).cwtch.GetMessage(profileOnion, conversationIdentifier, index);
     return rawMessageEnvelopeFuture.then((dynamic rawMessageEnvelope) {
-      var metadata = MessageMetadata(profileOnion, contactHandle, index, DateTime.now(), "", "", null, 0, false, true);
+      var metadata = MessageMetadata(profileOnion, conversationIdentifier, index, -1, DateTime.now(), "", "", null, 0, false, true);
       try {
         dynamic messageWrapper = jsonDecode(rawMessageEnvelope);
         // There are 2 conditions in which this error condition can be met:
@@ -50,23 +50,20 @@ Future<Message> messageHandler(BuildContext context, String profileOnion, String
         if (messageWrapper['Message'] == null || messageWrapper['Message'] == '' || messageWrapper['Message'] == '{}') {
           return Future.delayed(Duration(seconds: 2), () {
             print("Tail recursive call to messageHandler called. This should be a rare event. If you see multiples of this log over a short period of time please log it as a bug.");
-            return messageHandler(context, profileOnion, contactHandle, index).then((value) => value);
+            return messageHandler(context, profileOnion, conversationIdentifier, index).then((value) => value);
           });
         }
 
         // Construct the initial metadata
+        var messageID = messageWrapper['ID'];
         var timestamp = DateTime.tryParse(messageWrapper['Timestamp'])!;
         var senderHandle = messageWrapper['PeerID'];
         var senderImage = messageWrapper['ContactImage'];
         var flags = int.parse(messageWrapper['Flags'].toString());
         var ackd = messageWrapper['Acknowledged'];
         var error = messageWrapper['Error'] != null;
-        String? signature;
+        var signature = messageWrapper['Signature'];
-        // If this is a group, store the signature
+        metadata = MessageMetadata(profileOnion, conversationIdentifier, index, messageID, timestamp, senderHandle, senderImage, signature, flags, ackd, error);
-        if (contactHandle.length == GroupConversationHandleLength) {
-          signature = messageWrapper['Signature'];
-        }
-        metadata = MessageMetadata(profileOnion, contactHandle, index, timestamp, senderHandle, senderImage, signature, flags, ackd, error);
 
         dynamic message = jsonDecode(messageWrapper['Message']);
         var content = message['d'] as dynamic;
@@ -92,15 +89,16 @@ Future<Message> messageHandler(BuildContext context, String profileOnion, String
       }
     });
   } catch (e) {
-    return Future.value(MalformedMessage(MessageMetadata(profileOnion, contactHandle, index, DateTime.now(), "", "", null, 0, false, true)));
+    return Future.value(MalformedMessage(MessageMetadata(profileOnion, conversationIdentifier, index, -1, DateTime.now(), "", "", null, 0, false, true)));
   }
 }
 
 class MessageMetadata extends ChangeNotifier {
   // meta-metadata
   final String profileOnion;
-  final String contactHandle;
+  final int conversationIdentifier;
   final int messageIndex;
+  final int messageID;
 
   final DateTime timestamp;
   final String senderHandle;
@@ -129,5 +127,5 @@ class MessageMetadata extends ChangeNotifier {
     notifyListeners();
   }
 
-  MessageMetadata(this.profileOnion, this.contactHandle, this.messageIndex, this.timestamp, this.senderHandle, this.senderImage, this.signature, this._flags, this._ackd, this._error);
+  MessageMetadata(this.profileOnion, this.conversationIdentifier, this.messageIndex, this.messageID, this.timestamp, this.senderHandle, this.senderImage, this.signature, this._flags, this._ackd, this._error);
 }

lib/models/messages/filemessage.dart

@@ -21,7 +21,7 @@ class FileMessage extends Message {
     return ChangeNotifierProvider.value(
         value: this.metadata,
         builder: (bcontext, child) {
-          String idx = this.metadata.contactHandle + this.metadata.messageIndex.toString();
+          String idx = this.metadata.conversationIdentifier.toString() + this.metadata.messageID.toString();
           dynamic shareObj = jsonDecode(this.content);
           if (shareObj == null) {
             return MessageRow(MalformedBubble());

lib/models/messages/invitemessage.dart

@@ -21,14 +21,14 @@ class InviteMessage extends Message {
     return ChangeNotifierProvider.value(
         value: this.metadata,
         builder: (bcontext, child) {
-          String idx = this.metadata.contactHandle + this.metadata.messageIndex.toString();
+          String idx = this.metadata.conversationIdentifier.toString() + this.metadata.messageID.toString();
           String inviteTarget;
           String inviteNick;
           String invite = this.content;
 
           if (this.content.length == TorV3ContactHandleLength) {
             inviteTarget = this.content;
-            var targetContact = Provider.of<ProfileInfoState>(context).contactList.getContact(inviteTarget);
+            var targetContact = Provider.of<ProfileInfoState>(context).contactList.findContact(inviteTarget);
             inviteNick = targetContact == null ? this.content : targetContact.nickname;
           } else {
             var parts = this.content.toString().split("||");
@@ -54,7 +54,7 @@ class InviteMessage extends Message {
           String invite = this.content;
           if (this.content.length == TorV3ContactHandleLength) {
             inviteTarget = this.content;
-            var targetContact = Provider.of<ProfileInfoState>(context).contactList.getContact(inviteTarget);
+            var targetContact = Provider.of<ProfileInfoState>(context).contactList.findContact(inviteTarget);
             inviteNick = targetContact == null ? this.content : targetContact.nickname;
           } else {
             var parts = this.content.toString().split("||");

lib/models/messages/quotedmessage.dart

@@ -70,7 +70,7 @@ class QuotedMessage extends Message {
         return MalformedMessage(this.metadata).getWidget(context);
       }
 
-      var quotedMessagePotentials = Provider.of<FlwtchState>(context).cwtch.GetMessageByContentHash(metadata.profileOnion, metadata.contactHandle, message["quotedHash"]);
+      var quotedMessagePotentials = Provider.of<FlwtchState>(context).cwtch.GetMessageByContentHash(metadata.profileOnion, metadata.conversationIdentifier, message["quotedHash"]);
       int messageIndex = metadata.messageIndex;
       Future<LocallyIndexedMessage?> quotedMessage = quotedMessagePotentials.then((matchingMessages) {
         if (matchingMessages == "[]") {
@@ -94,11 +94,11 @@ class QuotedMessage extends Message {
       return ChangeNotifierProvider.value(
           value: this.metadata,
           builder: (bcontext, child) {
-            String idx = this.metadata.contactHandle + this.metadata.messageIndex.toString();
+            String idx = this.metadata.conversationIdentifier.toString() + this.metadata.messageID.toString();
             return MessageRow(
                 QuotedMessageBubble(message["body"], quotedMessage.then((LocallyIndexedMessage? localIndex) {
                   if (localIndex != null) {
-                    return messageHandler(context, metadata.profileOnion, metadata.contactHandle, localIndex.index);
+                    return messageHandler(context, metadata.profileOnion, metadata.conversationIdentifier, localIndex.index);
                   }
                   return MalformedMessage(this.metadata);
                 })),

lib/models/messages/textmessage.dart

@@ -32,7 +32,7 @@ class TextMessage extends Message {
     return ChangeNotifierProvider.value(
         value: this.metadata,
         builder: (bcontext, child) {
-          String idx = this.metadata.contactHandle + this.metadata.messageIndex.toString();
+          String idx = this.metadata.conversationIdentifier.toString() + this.metadata.messageID.toString();
           return MessageRow(MessageBubble(this.content), key: Provider.of<ContactInfoState>(bcontext).getMessageKey(idx));
         });
   }

lib/views/contactsview.dart

@@ -22,7 +22,7 @@ class ContactsView extends StatefulWidget {
 }
 
 // selectConversation can be called from anywhere to set the active conversation
-void selectConversation(BuildContext context, String handle) {
+void selectConversation(BuildContext context, int handle) {
   // requery instead of using contactinfostate directly because sometimes listview gets confused about data that resorts
   var initialIndex = Provider.of<ProfileInfoState>(context, listen: false).contactList.getContact(handle)!.unreadMessages;
   Provider.of<ProfileInfoState>(context, listen: false).contactList.getContact(handle)!.unreadMessages = 0;
@@ -36,7 +36,7 @@ void selectConversation(BuildContext context, String handle) {
   if (Provider.of<Settings>(context, listen: false).uiColumns(isLandscape).length == 1) _pushMessageView(context, handle);
 }
 
-void _pushMessageView(BuildContext context, String handle) {
+void _pushMessageView(BuildContext context, int handle) {
   var profileOnion = Provider.of<ProfileInfoState>(context, listen: false).onion;
   Navigator.of(context).push(
     MaterialPageRoute<void>(

lib/views/doublecolview.dart

@@ -34,8 +34,8 @@ class _DoubleColumnViewState extends State<DoubleColumnView> {
               MultiProvider(providers: [
                   ChangeNotifierProvider.value(value: Provider.of<ProfileInfoState>(context)),
                   ChangeNotifierProvider.value(
-                      value: flwtch.selectedConversation != null ? Provider.of<ProfileInfoState>(context).contactList.getContact(flwtch.selectedConversation!)! : ContactInfoState("", "")),
+                      value: flwtch.selectedConversation != null ? Provider.of<ProfileInfoState>(context).contactList.getContact(flwtch.selectedConversation!)! : ContactInfoState("", -1, "")),
-                ], child: Container(key: Key(flwtch.selectedConversation??"never_this"), child: MessageView())),
+                ], child: Container(key: Key(flwtch.selectedConversation!.toString()), child: MessageView())),
         ),
       ],
     );

lib/views/groupsettingsview.dart

@@ -78,9 +78,9 @@ class _GroupSettingsViewState extends State<GroupSettingsView> {
                               readonly: false,
                               onPressed: () {
                                 var profileOnion = Provider.of<ContactInfoState>(context, listen: false).profileOnion;
-                                var handle = Provider.of<ContactInfoState>(context, listen: false).onion;
+                                var handle = Provider.of<ContactInfoState>(context, listen: false).identifier;
                                 Provider.of<ContactInfoState>(context, listen: false).nickname = ctrlrNick.text;
-                                Provider.of<FlwtchState>(context, listen: false).cwtch.SetGroupAttribute(profileOnion, handle, "local.name", ctrlrNick.text);
+                                Provider.of<FlwtchState>(context, listen: false).cwtch.SetConversationAttribute(profileOnion, handle, "local.name", ctrlrNick.text);
                                 // todo translations
                                 final snackBar = SnackBar(content: Text("Group Nickname changed successfully"));
                                 ScaffoldMessenger.of(context).showSnackBar(snackBar);
@@ -140,7 +140,7 @@ class _GroupSettingsViewState extends State<GroupSettingsView> {
                                 child: ElevatedButton.icon(
                                   onPressed: () {
                                     var profileOnion = Provider.of<ContactInfoState>(context, listen: false).profileOnion;
-                                    var handle = Provider.of<ContactInfoState>(context, listen: false).onion;
+                                    var handle = Provider.of<ContactInfoState>(context, listen: false).identifier;
                                     // locally update cache...
                                     Provider.of<ContactInfoState>(context, listen: false).isArchived = true;
                                     Provider.of<FlwtchState>(context, listen: false).cwtch.ArchiveConversation(profileOnion, handle);
@@ -195,7 +195,7 @@ class _GroupSettingsViewState extends State<GroupSettingsView> {
       child: Text(AppLocalizations.of(context)!.yesLeave),
       onPressed: () {
         var profileOnion = Provider.of<ContactInfoState>(context, listen: false).profileOnion;
-        var handle = Provider.of<ContactInfoState>(context, listen: false).onion;
+        var handle = Provider.of<ContactInfoState>(context, listen: false).identifier;
         // locally update cache...
         Provider.of<ContactInfoState>(context, listen: false).isArchived = true;
         Provider.of<FlwtchState>(context, listen: false).cwtch.DeleteContact(profileOnion, handle);

lib/views/messageview.dart

@@ -33,7 +33,7 @@ class MessageView extends StatefulWidget {
 class _MessageViewState extends State<MessageView> {
   final ctrlrCompose = TextEditingController();
   final focusNode = FocusNode();
-  String selectedContact = "";
+  int selectedContact = -1;
   ItemPositionsListener scrollListener = ItemPositionsListener.create();
   ItemScrollController scrollController = ItemScrollController();
 
@@ -180,7 +180,7 @@ class _MessageViewState extends State<MessageView> {
             ChatMessage cm = new ChatMessage(o: QuotedMessageOverlay, d: quotedMessage);
             Provider.of<FlwtchState>(context, listen: false)
                 .cwtch
-                .SendMessage(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).onion, jsonEncode(cm));
+                .SendMessage(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).identifier, jsonEncode(cm));
           } catch (e) {}
           Provider.of<AppState>(context, listen: false).selectedIndex = null;
           _sendMessageHelper();
@@ -189,7 +189,7 @@ class _MessageViewState extends State<MessageView> {
         ChatMessage cm = new ChatMessage(o: TextMessageOverlay, d: ctrlrCompose.value.text);
         Provider.of<FlwtchState>(context, listen: false)
             .cwtch
-            .SendMessage(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).onion, jsonEncode(cm));
+            .SendMessage(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).identifier, jsonEncode(cm));
         _sendMessageHelper();
       }
     }
@@ -198,14 +198,14 @@ class _MessageViewState extends State<MessageView> {
   void _sendInvitation([String? ignoredParam]) {
     Provider.of<FlwtchState>(context, listen: false)
         .cwtch
-        .SendInvitation(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).onion, this.selectedContact);
+        .SendInvitation(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).identifier, this.selectedContact);
     _sendMessageHelper();
   }
 
   void _sendFile(String filePath) {
     Provider.of<FlwtchState>(context, listen: false)
         .cwtch
-        .ShareFile(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).onion, filePath);
+        .ShareFile(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).identifier, filePath);
     _sendMessageHelper();
   }
 
@@ -216,7 +216,7 @@ class _MessageViewState extends State<MessageView> {
       Provider.of<ContactInfoState>(context, listen: false).totalMessages++;
       Provider.of<ContactInfoState>(context, listen: false).newMarker++;
       // Resort the contact list...
-      Provider.of<ProfileInfoState>(context, listen: false).contactList.updateLastMessageTime(Provider.of<ContactInfoState>(context, listen: false).onion, DateTime.now());
+      Provider.of<ProfileInfoState>(context, listen: false).contactList.updateLastMessageTime(Provider.of<ContactInfoState>(context, listen: false).identifier, DateTime.now());
     });
   }
 

lib/views/peersettingsview.dart

@@ -200,7 +200,7 @@ class _PeerSettingsViewState extends State<PeerSettingsView> {
                                   child: ElevatedButton.icon(
                                     onPressed: () {
                                       var profileOnion = Provider.of<ContactInfoState>(context, listen: false).profileOnion;
-                                      var handle = Provider.of<ContactInfoState>(context, listen: false).onion;
+                                      var handle = Provider.of<ContactInfoState>(context, listen: false).identifier;
                                       // locally update cache...
                                       Provider.of<ContactInfoState>(context, listen: false).isArchived = true;
                                       Provider.of<FlwtchState>(context, listen: false).cwtch.ArchiveConversation(profileOnion, handle);
@@ -239,7 +239,7 @@ class _PeerSettingsViewState extends State<PeerSettingsView> {
       child: Text(AppLocalizations.of(context)!.yesLeave),
       onPressed: () {
         var profileOnion = Provider.of<ContactInfoState>(context, listen: false).profileOnion;
-        var handle = Provider.of<ContactInfoState>(context, listen: false).onion;
+        var handle = Provider.of<ContactInfoState>(context, listen: false).identifier;
         // locally update cache...
         Provider.of<ContactInfoState>(context, listen: false).isArchived = true;
         Provider.of<FlwtchState>(context, listen: false).cwtch.DeleteContact(profileOnion, handle);

lib/widgets/contactrow.dart

@@ -105,7 +105,7 @@ class _ContactRowState extends State<ContactRow> {
             ),
           ]),
           onTap: () {
-            selectConversation(context, contact.onion);
+            selectConversation(context, contact.identifier);
           },
         ));
   }
@@ -113,16 +113,16 @@ class _ContactRowState extends State<ContactRow> {
   void _btnApprove() {
     Provider.of<FlwtchState>(context, listen: false)
         .cwtch
-        .AcceptContact(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).onion);
+        .AcceptContact(Provider.of<ContactInfoState>(context, listen: false).profileOnion, Provider.of<ContactInfoState>(context, listen: false).identifier);
   }
 
   void _btnReject() {
     ContactInfoState contact = Provider.of<ContactInfoState>(context, listen: false);
     if (contact.isGroup == true) {
-      Provider.of<FlwtchState>(context, listen: false).cwtch.RejectInvite(Provider.of<ContactInfoState>(context, listen: false).profileOnion, contact.onion);
+      Provider.of<FlwtchState>(context, listen: false).cwtch.RejectInvite(Provider.of<ContactInfoState>(context, listen: false).profileOnion, contact.identifier);
       Provider.of<ProfileInfoState>(context, listen: false).removeContact(contact.onion);
     } else {
-      Provider.of<FlwtchState>(context, listen: false).cwtch.BlockContact(Provider.of<ContactInfoState>(context, listen: false).profileOnion, contact.onion);
+      Provider.of<FlwtchState>(context, listen: false).cwtch.BlockContact(Provider.of<ContactInfoState>(context, listen: false).profileOnion, contact.identifier);
     }
   }
 

lib/widgets/filebubble.dart

@@ -49,7 +49,7 @@ class FileBubbleState extends State<FileBubble> {
     // If the sender is not us, then we want to give them a nickname...
     var senderDisplayStr = "";
     if (!fromMe) {
-      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.getContact(Provider.of<MessageMetadata>(context).senderHandle);
+      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.findContact(Provider.of<MessageMetadata>(context).senderHandle);
       if (contact != null) {
         senderDisplayStr = contact.nickname;
       } else {
@@ -152,9 +152,16 @@ class FileBubbleState extends State<FileBubble> {
 
     if (Platform.isAndroid) {
       Provider.of<ProfileInfoState>(context, listen: false).downloadInit(widget.fileKey(), (widget.fileSize / 4096).ceil());
-      Provider.of<FlwtchState>(context, listen: false).cwtch.UpdateMessageFlags(profileOnion, contact, idx, Provider.of<MessageMetadata>(context, listen: false).flags | 0x02);
+      //Provider.of<FlwtchState>(context, listen: false).cwtch.UpdateMessageFlags(profileOnion, contact, idx, Provider.of<MessageMetadata>(context, listen: false).flags | 0x02);
       Provider.of<MessageMetadata>(context, listen: false).flags |= 0x02;
-      Provider.of<FlwtchState>(context, listen: false).cwtch.CreateDownloadableFile(profileOnion, handle, widget.nameSuggestion, widget.fileKey());
+      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.findContact(Provider.of<MessageMetadata>(context).senderHandle);
+      if (contact != null) {
+        Provider
+            .of<FlwtchState>(context, listen: false)
+            .cwtch
+            .CreateDownloadableFile(
+            profileOnion, contact.identifier, widget.nameSuggestion, widget.fileKey());
+      }
     } else {
       try {
         selectedFileName = await saveFile(
@@ -165,9 +172,16 @@ class FileBubbleState extends State<FileBubble> {
           print("saving to " + file.path);
           var manifestPath = file.path + ".manifest";
           Provider.of<ProfileInfoState>(context, listen: false).downloadInit(widget.fileKey(), (widget.fileSize / 4096).ceil());
-          Provider.of<FlwtchState>(context, listen: false).cwtch.UpdateMessageFlags(profileOnion, contact, idx, Provider.of<MessageMetadata>(context, listen: false).flags | 0x02);
+          //Provider.of<FlwtchState>(context, listen: false).cwtch.UpdateMessageFlags(profileOnion, contact, idx, Provider.of<MessageMetadata>(context, listen: false).flags | 0x02);
           Provider.of<MessageMetadata>(context, listen: false).flags |= 0x02;
-          Provider.of<FlwtchState>(context, listen: false).cwtch.DownloadFile(profileOnion, handle, file.path, manifestPath, widget.fileKey());
+          ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.findContact(Provider.of<MessageMetadata>(context).senderHandle);
+          if (contact != null) {
+            Provider
+                .of<FlwtchState>(context, listen: false)
+                .cwtch
+                .DownloadFile(profileOnion, contact.identifier, file.path, manifestPath,
+                widget.fileKey());
+          }
         }
       } catch (e) {
         print(e);
@@ -177,7 +191,7 @@ class FileBubbleState extends State<FileBubble> {
 
   void _btnResume() async {
     var profileOnion = Provider.of<ProfileInfoState>(context, listen: false).onion;
-    var handle = Provider.of<MessageMetadata>(context, listen: false).senderHandle;
+    var handle = Provider.of<MessageMetadata>(context, listen: false).conversationIdentifier;
     Provider.of<ProfileInfoState>(context, listen: false).downloadMarkResumed(widget.fileKey());
     Provider.of<FlwtchState>(context, listen: false).cwtch.VerifyOrResumeDownload(profileOnion, handle, widget.fileKey());
   }

lib/widgets/invitationbubble.dart

@@ -36,7 +36,7 @@ class InvitationBubbleState extends State<InvitationBubble> {
   Widget build(BuildContext context) {
     var fromMe = Provider.of<MessageMetadata>(context).senderHandle == Provider.of<ProfileInfoState>(context).onion;
     var isGroup = widget.overlay == InviteGroupOverlay;
-    isAccepted = Provider.of<ProfileInfoState>(context).contactList.getContact(widget.inviteTarget) != null;
+    isAccepted = Provider.of<ProfileInfoState>(context).contactList.findContact(widget.inviteTarget) != null;
     var borderRadiousEh = 15.0;
     var showGroupInvite = Provider.of<Settings>(context).isExperimentEnabled(TapirGroupsExperiment);
     rejected = Provider.of<MessageMetadata>(context).flags & 0x01 == 0x01;
@@ -45,7 +45,7 @@ class InvitationBubbleState extends State<InvitationBubble> {
     // If the sender is not us, then we want to give them a nickname...
     var senderDisplayStr = "";
     if (!fromMe) {
-      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.getContact(Provider.of<MessageMetadata>(context).senderHandle);
+      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.findContact(Provider.of<MessageMetadata>(context).senderHandle);
       if (contact != null) {
         senderDisplayStr = contact.nickname;
       } else {
@@ -69,7 +69,7 @@ class InvitationBubbleState extends State<InvitationBubble> {
         ? Text(AppLocalizations.of(context)!.groupInviteSettingsWarning)
         : fromMe
             ? senderInviteChrome(
-                AppLocalizations.of(context)!.sendAnInvitation, isGroup ? Provider.of<ProfileInfoState>(context).contactList.getContact(widget.inviteTarget)!.nickname : widget.inviteTarget)
+                AppLocalizations.of(context)!.sendAnInvitation, isGroup ? Provider.of<ProfileInfoState>(context).contactList.findContact(widget.inviteTarget)!.nickname : widget.inviteTarget)
             : (inviteChrome(isGroup ? AppLocalizations.of(context)!.inviteToGroup : AppLocalizations.of(context)!.contactSuggestion, widget.inviteNick, widget.inviteTarget));
 
     Widget wdgDecorations;
@@ -130,7 +130,7 @@ class InvitationBubbleState extends State<InvitationBubble> {
       var profileOnion = Provider.of<ProfileInfoState>(context, listen: false).onion;
       var contact = Provider.of<ContactInfoState>(context, listen: false).onion;
       var idx = Provider.of<MessageMetadata>(context, listen: false).messageIndex;
-      Provider.of<FlwtchState>(context, listen: false).cwtch.UpdateMessageFlags(profileOnion, contact, idx, Provider.of<MessageMetadata>(context, listen: false).flags | 0x01);
+      //Provider.of<FlwtchState>(context, listen: false).cwtch.UpdateMessageFlags(profileOnion, contact, idx, Provider.of<MessageMetadata>(context, listen: false).flags | 0x01);
       Provider.of<MessageMetadata>(context, listen: false).flags |= 0x01;
     });
   }

lib/widgets/messagebubble.dart

@@ -40,7 +40,7 @@ class MessageBubbleState extends State<MessageBubble> {
     // If the sender is not us, then we want to give them a nickname...
     var senderDisplayStr = "";
     if (!fromMe) {
-      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.getContact(Provider.of<MessageMetadata>(context).senderHandle);
+      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.findContact(Provider.of<MessageMetadata>(context).senderHandle);
       if (contact != null) {
         senderDisplayStr = contact.nickname;
       } else {

lib/widgets/messagelist.dart

@@ -76,8 +76,8 @@ class _MessageListState extends State<MessageList> {
                       reverse: true, // NOTE: There seems to be a bug in flutter that corrects the mouse wheel scroll, but not the drag direction...
                       itemBuilder: (itemBuilderContext, index) {
                         var profileOnion = Provider.of<ProfileInfoState>(outerContext, listen: false).onion;
-                        var contactHandle = Provider.of<ContactInfoState>(outerContext, listen: false).onion;
+                        var contactHandle = Provider.of<ContactInfoState>(outerContext, listen: false).identifier;
-                        var messageIndex = Provider.of<ContactInfoState>(outerContext).totalMessages - index - 1;
+                        var messageIndex = index;
 
                         return FutureBuilder(
                           future: messageHandler(outerContext, profileOnion, contactHandle, messageIndex),

lib/widgets/messagerow.dart

@@ -48,8 +48,8 @@ class MessageRowState extends State<MessageRow> with SingleTickerProviderStateMi
   @override
   Widget build(BuildContext context) {
     var fromMe = Provider.of<MessageMetadata>(context).senderHandle == Provider.of<ProfileInfoState>(context).onion;
-    var isContact = Provider.of<ProfileInfoState>(context).contactList.getContact(Provider.of<MessageMetadata>(context).senderHandle) != null;
+    var isContact = Provider.of<ProfileInfoState>(context).contactList.findContact(Provider.of<MessageMetadata>(context).senderHandle) != null;
-    var isBlocked = isContact ? Provider.of<ProfileInfoState>(context).contactList.getContact(Provider.of<MessageMetadata>(context).senderHandle)!.isBlocked : false;
+    var isBlocked = isContact ? Provider.of<ProfileInfoState>(context).contactList.findContact(Provider.of<MessageMetadata>(context).senderHandle)!.isBlocked : false;
     var actualMessage = Flexible(flex: 3, fit: FlexFit.loose, child: widget.child);
 
     _dragAffinity = fromMe ? Alignment.centerRight : Alignment.centerLeft;
@@ -60,7 +60,7 @@ class MessageRowState extends State<MessageRow> with SingleTickerProviderStateMi
 
     var senderDisplayStr = "";
     if (!fromMe) {
-      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.getContact(Provider.of<MessageMetadata>(context).senderHandle);
+      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.findContact(Provider.of<MessageMetadata>(context).senderHandle);
       if (contact != null) {
         senderDisplayStr = contact.nickname;
       } else {
@@ -249,7 +249,7 @@ class MessageRowState extends State<MessageRow> with SingleTickerProviderStateMi
   }
 
   void _btnGoto() {
-    selectConversation(context, Provider.of<MessageMetadata>(context, listen: false).senderHandle);
+    selectConversation(context, Provider.of<MessageMetadata>(context, listen: false).conversationIdentifier);
   }
 
   void _btnAdd() {

lib/widgets/quotedmessage.dart

@@ -34,7 +34,7 @@ class QuotedMessageBubbleState extends State<QuotedMessageBubble> {
     // If the sender is not us, then we want to give them a nickname...
     var senderDisplayStr = "";
     if (!fromMe) {
-      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.getContact(Provider.of<MessageMetadata>(context).senderHandle);
+      ContactInfoState? contact = Provider.of<ProfileInfoState>(context).contactList.findContact(Provider.of<MessageMetadata>(context).senderHandle);
       if (contact != null) {
         senderDisplayStr = contact.nickname;
       } else {