fix issue with contact request

ios/Podfile.lock

@@ -131,10 +131,6 @@ PODS:
   - google_mlkit_commons (0.11.1):
     - Flutter
     - MLKitVision (~> 10.0.0)
-  - google_mlkit_face_detection (0.13.2):
-    - Flutter
-    - google_mlkit_commons
-    - GoogleMLKit/FaceDetection (~> 9.0.0)
   - GoogleAdsOnDeviceConversion (3.2.0):
     - GoogleUtilities/Environment (~> 8.1)
     - GoogleUtilities/Logger (~> 8.1)
@@ -168,9 +164,6 @@ PODS:
   - GoogleMLKit/BarcodeScanning (9.0.0):
     - GoogleMLKit/MLKitCore
     - MLKitBarcodeScanning (~> 8.0.0)
-  - GoogleMLKit/FaceDetection (9.0.0):
-    - GoogleMLKit/MLKitCore
-    - MLKitFaceDetection (~> 8.0.0)
   - GoogleMLKit/MLKitCore (9.0.0):
     - MLKitCommon (~> 14.0.0)
   - GoogleToolboxForMac/Defines (4.2.1)
@@ -253,9 +246,6 @@ PODS:
     - GoogleUtilities/Logger (~> 8.0)
     - GoogleUtilities/UserDefaults (~> 8.0)
     - GTMSessionFetcher/Core (< 4.0, >= 3.3.2)
-  - MLKitFaceDetection (8.0.0):
-    - MLKitCommon (~> 14.0)
-    - MLKitVision (~> 10.0)
   - MLKitVision (10.0.0):
     - GoogleToolboxForMac/Logger (< 5.0, >= 4.2.1)
     - "GoogleToolboxForMac/NSData+zlib (< 5.0, >= 4.2.1)"
@@ -360,7 +350,6 @@ DEPENDENCIES:
   - gal (from `.symlinks/plugins/gal/darwin`)
   - google_mlkit_barcode_scanning (from `.symlinks/plugins/google_mlkit_barcode_scanning/ios`)
   - google_mlkit_commons (from `.symlinks/plugins/google_mlkit_commons/ios`)
-  - google_mlkit_face_detection (from `.symlinks/plugins/google_mlkit_face_detection/ios`)
   - GoogleUtilities
   - image_picker_ios (from `.symlinks/plugins/image_picker_ios/ios`)
   - in_app_purchase_storekit (from `.symlinks/plugins/in_app_purchase_storekit/darwin`)
@@ -403,7 +392,6 @@ SPEC REPOS:
     - MLImage
     - MLKitBarcodeScanning
     - MLKitCommon
-    - MLKitFaceDetection
     - MLKitVision
     - nanopb
     - PromisesObjC
@@ -457,8 +445,6 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/google_mlkit_barcode_scanning/ios"
   google_mlkit_commons:
     :path: ".symlinks/plugins/google_mlkit_commons/ios"
-  google_mlkit_face_detection:
-    :path: ".symlinks/plugins/google_mlkit_face_detection/ios"
   image_picker_ios:
     :path: ".symlinks/plugins/image_picker_ios/ios"
   in_app_purchase_storekit:
@@ -524,7 +510,6 @@ SPEC CHECKSUMS:
   gal: baecd024ebfd13c441269ca7404792a7152fde89
   google_mlkit_barcode_scanning: 12d8422d8f7b00726dedf9cac00188a2b98750c2
   google_mlkit_commons: a5e4ffae5bc59ea4c7b9025dc72cb6cb79dc1166
-  google_mlkit_face_detection: ee4b72cfae062b4c972204be955d83055a4bfd36
   GoogleAdsOnDeviceConversion: d68c69dd9581a0f5da02617b6f377e5be483970f
   GoogleAppMeasurement: fce7c1c90640d2f9f5c56771f71deacb2ba3f98c
   GoogleDataTransport: aae35b7ea0c09004c3797d53c8c41f66f219d6a7
@@ -540,7 +525,6 @@ SPEC CHECKSUMS:
   MLImage: 0de5c6c2bf9e93b80ef752e2797f0836f03b58c0
   MLKitBarcodeScanning: 39de223e7b1b8a8fbf10816a536dd292d8a39343
   MLKitCommon: 47d47b50a031d00db62f1b0efe5a1d8b09a3b2e6
-  MLKitFaceDetection: 32549f1e70e6e7731261bf9cea2b74095e2531cb
   MLKitVision: 39a5a812db83c4a0794445088e567f3631c11961
   nanopb: fad817b59e0457d11a5dfbde799381cd727c1275
   no_screenshot: 5e345998c43ffcad5d6834f249590483fcc037bd

lib/src/database/daos/contacts.dao.dart

@@ -110,7 +110,7 @@ class ContactsDao extends DatabaseAccessor<TwonlyDB> with _$ContactsDaoMixin {
     return query.map((row) => row.read(count)).watchSingle();
   }
 
-  Stream<int?> watchContactsRequested() {
+  Stream<int?> watchContactsRequestedCount() {
     final count = contacts.requested.count(distinct: true);
     final query = selectOnly(contacts)
       ..where(

lib/src/services/api/client2client/contact.c2c.dart

@@ -18,7 +18,15 @@ Future<bool> handleNewContactRequest(int fromUserId) async {
       .getContactByUserId(fromUserId)
       .getSingleOrNull();
   if (contact != null) {
-    if (contact.accepted) {
+    // Either the contact has accepted the fromUserId already: Then just blindly accept the request.
+    // Or the user has also requested fromUserId. This means that both user have requested each other (while been
+    // offline for example): In this case the contact can also be accepted blindly.
+    if (contact.accepted || (!contact.requested && !contact.deletedByUser)) {
+      if (!contact.accepted) {
+        // User has also requested the fromUserId, so mark the user as accepted.
+        await handleContactAccept(fromUserId);
+      }
+
       // contact was already accepted, so just accept the request in the background.
       await sendCipherText(
         contact.userId,
@@ -50,6 +58,28 @@ Future<bool> handleNewContactRequest(int fromUserId) async {
   return true;
 }
 
+Future<void> handleContactAccept(int fromUserId) async {
+  await twonlyDB.contactsDao.updateContact(
+    fromUserId,
+    const ContactsCompanion(
+      requested: Value(false),
+      accepted: Value(true),
+      deletedByUser: Value(false),
+    ),
+  );
+  final contact = await twonlyDB.contactsDao
+      .getContactByUserId(fromUserId)
+      .getSingleOrNull();
+  if (contact != null) {
+    await twonlyDB.groupsDao.createNewDirectChat(
+      fromUserId,
+      GroupsCompanion(
+        groupName: Value(getContactDisplayName(contact)),
+      ),
+    );
+  }
+}
+
 Future<bool> handleContactRequest(
   int fromUserId,
   EncryptedContent_ContactRequest contactRequest,
@@ -60,25 +90,7 @@ Future<bool> handleContactRequest(
       return handleNewContactRequest(fromUserId);
     case EncryptedContent_ContactRequest_Type.ACCEPT:
       Log.info('Got a contact accept from $fromUserId');
-      await twonlyDB.contactsDao.updateContact(
-        fromUserId,
-        const ContactsCompanion(
-          requested: Value(false),
-          accepted: Value(true),
-          deletedByUser: Value(false),
-        ),
-      );
-      final contact = await twonlyDB.contactsDao
-          .getContactByUserId(fromUserId)
-          .getSingleOrNull();
-      if (contact != null) {
-        await twonlyDB.groupsDao.createNewDirectChat(
-          fromUserId,
-          GroupsCompanion(
-            groupName: Value(getContactDisplayName(contact)),
-          ),
-        );
-      }
+      await handleContactAccept(fromUserId);
     case EncryptedContent_ContactRequest_Type.REJECT:
       Log.info('Got a contact reject from $fromUserId');
       await twonlyDB.contactsDao.updateContact(

lib/src/services/api/server_messages.dart

@@ -26,6 +26,7 @@ import 'package:twonly/src/services/api/client2client/text_message.c2c.dart';
 import 'package:twonly/src/services/api/messages.dart';
 import 'package:twonly/src/services/group.services.dart';
 import 'package:twonly/src/services/signal/encryption.signal.dart';
+import 'package:twonly/src/services/signal/session.signal.dart';
 import 'package:twonly/src/utils/log.dart';
 import 'package:twonly/src/utils/misc.dart';
 
@@ -94,6 +95,11 @@ Future<void> handleClient2ClientMessage(NewMessage newMessage) async {
       var retry = false;
       if (message.hasPlaintextContent()) {
         if (message.plaintextContent.hasDecryptionErrorMessage()) {
+          if (message.plaintextContent.decryptionErrorMessage.type ==
+              PlaintextContent_DecryptionErrorMessage_Type.PREKEY_UNKNOWN) {
+            // Get a new prekey from the server, and establish a new signal session.
+            await handleSessionResync(fromUserId);
+          }
           Log.info(
             'Got decryption error: ${message.plaintextContent.decryptionErrorMessage.type} for $receiptId',
           );

lib/src/views/chats/chat_list.view.dart

@@ -138,7 +138,7 @@ class _ChatListViewState extends State<ChatListView> {
         actions: [
           const FeedbackIconButton(),
           StreamBuilder(
-            stream: twonlyDB.contactsDao.watchContactsRequested(),
+            stream: twonlyDB.contactsDao.watchContactsRequestedCount(),
             builder: (context, snapshot) {
               var count = 0;
               if (snapshot.hasData && snapshot.data != null) {

lib/src/views/groups/group_member.context.dart

@@ -93,7 +93,9 @@ class GroupMemberContextMenu extends StatelessWidget {
     await twonlyDB.contactsDao.updateContact(
       member.contactId,
       const ContactsCompanion(
-        requested: Value(true),
+        accepted: Value(false),
+        requested: Value(false),
+        deletedByUser: Value(false),
       ),
     );
     await sendCipherText(

pubspec.lock

@@ -341,18 +341,18 @@ packages:
     dependency: "direct main"
     description:
       name: cryptography_flutter_plus
-      sha256: "35a8c270aae0abaac7125a6b6b33c2b3daa0ea90d85320aa7d588b6dd6c2edc9"
+      sha256: "65bc0a78c2104cdb02f4b69e3a03abef093e660d9d9208bc81942b058b49deb2"
       url: "https://pub.dev"
     source: hosted
-    version: "2.3.4"
+    version: "3.0.0"
   cryptography_plus:
     dependency: "direct main"
     description:
       name: cryptography_plus
-      sha256: "34db787df4f4740a39474b6fb0a610aa6dc13a5b5b68754b4787a79939ac0454"
+      sha256: edf96fc96518368b11bb1ba33b515f59aa5a55b0aa7533c0e1813399cf81130e
       url: "https://pub.dev"
     source: hosted
-    version: "2.7.1"
+    version: "3.0.0"
   csslib:
     dependency: transitive
     description:
@@ -1080,14 +1080,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.14.2"
-  js:
-    dependency: transitive
-    description:
-      name: js
-      sha256: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.7.2"
   json_annotation:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -98,8 +98,8 @@ dependencies:
   avatar_maker: ^0.4.0
   background_downloader: ^9.4.0
   cached_network_image: ^3.4.1
-  cryptography_flutter_plus: ^2.3.4
-  cryptography_plus: ^2.7.0
+  cryptography_flutter_plus: ^3.0.0
+  cryptography_plus: ^3.0.0
   flutter_android_volume_keydown: ^1.0.1
   flutter_image_compress: ^2.4.0
   flutter_volume_controller: ^1.3.4