fix: Fix style issues

lib/src/crypto.dart

@@ -113,7 +113,7 @@ Future<Result<MalformedCiphertextError, List<int>>> aes256CbcDecrypt(
       ),
     );
   } catch (ex) {
-    return Result(MalformedCiphertextError(ex)); 
+    return Result(MalformedCiphertextError(ex));
   }
 }
 

lib/src/double_ratchet/double_ratchet.dart

@@ -247,11 +247,15 @@ class OmemoDoubleRatchet {
 
   /// Decrypt [ciphertext] using keys derived from the message key [mk]. Also computes the
   /// HMAC from the [OMEMOMessage] embedded in [message].
-  /// 
+  ///
   /// If the computed HMAC does not match the HMAC in [message], returns
   /// [InvalidMessageHMACError]. If it matches, returns the decrypted
   /// payload.
-  Future<Result<OmemoError, List<int>>> _decrypt(OMEMOAuthenticatedMessage message, List<int> ciphertext, List<int> mk) async {
+  Future<Result<OmemoError, List<int>>> _decrypt(
+    OMEMOAuthenticatedMessage message,
+    List<int> ciphertext,
+    List<int> mk,
+  ) async {
     final keys = await deriveEncryptionKeys(mk, encryptHkdfInfoString);
 
     final hmacInput = concat([sessionAd, message.message]);
@@ -260,7 +264,8 @@ class OmemoDoubleRatchet {
       return Result(InvalidMessageHMACError());
     }
 
-    final plaintext = await aes256CbcDecrypt(ciphertext, keys.encryptionKey, keys.iv);
+    final plaintext =
+        await aes256CbcDecrypt(ciphertext, keys.encryptionKey, keys.iv);
     if (plaintext.isType<MalformedCiphertextError>()) {
       return Result(plaintext.get<MalformedCiphertextError>());
     }
@@ -270,10 +275,13 @@ class OmemoDoubleRatchet {
 
   /// Checks whether we could decrypt the payload in [header] with a skipped key. If yes,
   /// attempts to decrypt it. If not, returns null.
-  /// 
+  ///
   /// If the decryption is successful, returns the plaintext payload. If an error occurs, like
   /// an [InvalidMessageHMACError], that is returned instead.
-  Future<Result<OmemoError, List<int>?>> _trySkippedMessageKeys(OMEMOAuthenticatedMessage message, OMEMOMessage header) async {
+  Future<Result<OmemoError, List<int>?>> _trySkippedMessageKeys(
+    OMEMOAuthenticatedMessage message,
+    OMEMOMessage header,
+  ) async {
     final key = SkippedKey(
       OmemoPublicKey.fromBytes(header.dhPub, KeyPairType.x25519),
       header.n,
@@ -289,10 +297,12 @@ class OmemoDoubleRatchet {
   }
 
   /// Decrypt the payload (deeply) embedded in [message].
-  /// 
+  ///
   /// If everything goes well, returns the plaintext payload. If an error occurs, that
   /// is returned instead.
-  Future<Result<OmemoError, List<int>>> ratchetDecrypt(OMEMOAuthenticatedMessage message) async {
+  Future<Result<OmemoError, List<int>>> ratchetDecrypt(
+    OMEMOAuthenticatedMessage message,
+  ) async {
     final header = OMEMOMessage.fromBuffer(message.message);
 
     // Try skipped keys
@@ -343,10 +353,10 @@ class OmemoDoubleRatchet {
 
     // Fill-in the header and serialize it here so we do it only once
     final header = OMEMOMessage()
-        ..dhPub = await dhs.pk.getBytes()
-        ..pn = pn
-        ..n = ns
-        ..ciphertext = ciphertext;
+      ..dhPub = await dhs.pk.getBytes()
+      ..pn = pn
+      ..n = ns
+      ..ciphertext = ciphertext;
     final headerBytes = header.writeToBuffer();
 
     // Increment the send counter

lib/src/omemo/encryption_result.dart

@@ -1,8 +1,6 @@
 import 'package:meta/meta.dart';
-import 'package:omemo_dart/src/errors.dart';
 import 'package:omemo_dart/src/omemo/encrypted_key.dart';
 import 'package:omemo_dart/src/omemo/errors.dart';
-import 'package:omemo_dart/src/omemo/ratchet_map_key.dart';
 
 @immutable
 class EncryptionResult {
@@ -19,7 +17,7 @@ class EncryptionResult {
   /// for the ratchet with said device Id.
   final Map<String, List<EncryptedKey>> encryptedKeys;
 
-  /// Mapping of a JID to 
+  /// Mapping of a JID to
   final Map<String, List<EncryptToJidError>> deviceEncryptionErrors;
 
   // TODO: Turn this into a property that is computed in [onOutgoingStanza].

lib/src/omemo/omemo.dart

@@ -1,5 +1,4 @@
 import 'dart:async';
-import 'dart:collection';
 import 'dart:convert';
 import 'package:collection/collection.dart';
 import 'package:cryptography/cryptography.dart';
@@ -139,11 +138,12 @@ class OmemoManager {
 
   /// Fetches the device list from the server for [jid] and downloads OMEMO bundles
   /// for devices we have no session with.
-  /// 
+  ///
   /// Returns a list of new bundles, that may be empty.
   Future<List<OmemoBundle>> _fetchNewOmemoBundles(String jid) async {
     // Do we have to request the device list or are we already up-to-date?
-    if (!_deviceListRequested.containsKey(jid) || !_deviceList.containsKey(jid)) {
+    if (!_deviceListRequested.containsKey(jid) ||
+        !_deviceList.containsKey(jid)) {
       final newDeviceList = await fetchDeviceListImpl(jid);
       if (newDeviceList != null) {
         // Figure out what bundles we must fetch
@@ -190,11 +190,17 @@ class OmemoManager {
     return bundles;
   }
 
-  Future<void> _maybeSendEmptyMessage(RatchetMapKey key, bool created, bool replaced) async {
+  Future<void> _maybeSendEmptyMessage(
+    RatchetMapKey key,
+    bool created,
+    bool replaced,
+  ) async {
     final ratchet = _ratchetMap[key]!;
     if (ratchet.acknowledged) {
       // The ratchet is acknowledged
-      _log.finest('Checking whether to heartbeat to ${key.jid}, ratchet.nr (${ratchet.nr}) >= 53: ${ratchet.nr >= 53}, created: $created, replaced: $replaced');
+      _log.finest(
+        'Checking whether to heartbeat to ${key.jid}, ratchet.nr (${ratchet.nr}) >= 53: ${ratchet.nr >= 53}, created: $created, replaced: $replaced',
+      );
       if (ratchet.nr >= 53 || created || replaced) {
         await sendEmptyOmemoMessageImpl(
           await _onOutgoingStanzaImpl(
@@ -222,7 +228,7 @@ class OmemoManager {
     }
   }
 
-  /// 
+  ///
   Future<DecryptionResult> onIncomingStanza(OmemoIncomingStanza stanza) async {
     return _ratchetQueue.synchronized(
       [stanza.bareSenderJid],
@@ -230,7 +236,9 @@ class OmemoManager {
     );
   }
 
-  Future<DecryptionResult> _onIncomingStanzaImpl(OmemoIncomingStanza stanza) async {
+  Future<DecryptionResult> _onIncomingStanzaImpl(
+    OmemoIncomingStanza stanza,
+  ) async {
     // Find the correct key for our device
     final deviceId = await getDeviceId();
     final key = stanza.keys.firstWhereOrNull((key) => key.rid == deviceId);
@@ -242,7 +250,8 @@ class OmemoManager {
     }
 
     // Check how we should process the message
-    final ratchetKey = RatchetMapKey(stanza.bareSenderJid, stanza.senderDeviceId);
+    final ratchetKey =
+        RatchetMapKey(stanza.bareSenderJid, stanza.senderDeviceId);
     var processAsKex = key.kex;
     if (key.kex && _ratchetMap.containsKey(ratchetKey)) {
       final ratchet = _ratchetMap[ratchetKey]!;
@@ -288,7 +297,7 @@ class OmemoManager {
       );
       final kex = await x3dhFromInitialMessage(
         X3DHMessage(
-          kexIk, 
+          kexIk,
           kexEk,
           kexMessage.pkId,
         ),
@@ -369,7 +378,11 @@ class OmemoManager {
       }
 
       // Send the hearbeat, if we have to
-      await _maybeSendEmptyMessage(ratchetKey, true, _ratchetMap.containsKey(ratchetKey));
+      await _maybeSendEmptyMessage(
+        ratchetKey,
+        true,
+        _ratchetMap.containsKey(ratchetKey),
+      );
 
       return DecryptionResult(
         result.get<String?>(),
@@ -380,7 +393,8 @@ class OmemoManager {
       if (!_ratchetMap.containsKey(ratchetKey)) {
         // TODO: Check if we recently failed to build a session with the device
         // This causes omemo_dart to build a session with the device.
-        if (!_deviceList[stanza.bareSenderJid]!.contains(stanza.senderDeviceId)) {
+        if (!_deviceList[stanza.bareSenderJid]!
+            .contains(stanza.senderDeviceId)) {
           _deviceList[stanza.bareSenderJid]!.add(stanza.senderDeviceId);
         }
         await _sendOmemoHeartbeat(stanza.bareSenderJid);
@@ -397,10 +411,14 @@ class OmemoManager {
       // Correctly decode the message
       OMEMOAuthenticatedMessage authMessage;
       if (key.kex) {
-        _log.finest('Extracting OMEMOAuthenticatedMessage from OMEMOKeyExchange');
-        authMessage = OMEMOKeyExchange.fromBuffer(base64Decode(key.value)).message;
+        _log.finest(
+          'Extracting OMEMOAuthenticatedMessage from OMEMOKeyExchange',
+        );
+        authMessage =
+            OMEMOKeyExchange.fromBuffer(base64Decode(key.value)).message;
       } else {
-        authMessage = OMEMOAuthenticatedMessage.fromBuffer(base64Decode(key.value));
+        authMessage =
+            OMEMOAuthenticatedMessage.fromBuffer(base64Decode(key.value));
       }
 
       final keyAndHmac = await ratchet.ratchetDecrypt(authMessage);
@@ -459,7 +477,9 @@ class OmemoManager {
     );
   }
 
-  Future<EncryptionResult> _onOutgoingStanzaImpl(OmemoOutgoingStanza stanza) async {
+  Future<EncryptionResult> _onOutgoingStanzaImpl(
+    OmemoOutgoingStanza stanza,
+  ) async {
     // Encrypt the payload, if we have any
     final List<int> payloadKey;
     final List<int> ciphertext;
@@ -545,7 +565,9 @@ class OmemoManager {
       _eventStreamController.add(
         RatchetsAddedEvent(
           Map<RatchetMapKey, OmemoDoubleRatchet>.fromEntries(
-            addedRatchetKeys.map((key) => MapEntry(key, _ratchetMap[key]!)).toList(),
+            addedRatchetKeys
+                .map((key) => MapEntry(key, _ratchetMap[key]!))
+                .toList(),
           ),
         ),
       );
@@ -728,7 +750,9 @@ class OmemoManager {
   Future<void> _ratchetAcknowledged(String jid, int device) async {
     final ratchetKey = RatchetMapKey(jid, device);
     if (!_ratchetMap.containsKey(ratchetKey)) {
-      _log.warning('Cannot mark $jid:$device as acknowledged as the ratchet does not exist');
+      _log.warning(
+        'Cannot mark $jid:$device as acknowledged as the ratchet does not exist',
+      );
     } else {
       // Commit
       final ratchet = _ratchetMap[ratchetKey]!..acknowledged = true;
@@ -740,7 +764,7 @@ class OmemoManager {
 
   /// If ratchets with [jid] exists, returns a list of fingerprints for each
   /// ratchet.
-  /// 
+  ///
   /// If not ratchets exists, returns null.
   Future<List<DeviceFingerprint>?> getFingerprintsForJid(String jid) async {
     return _ratchetQueue.synchronized(
@@ -750,7 +774,9 @@ class OmemoManager {
   }
 
   /// Same as [getFingerprintsForJid], but without acquiring the lock for [jid].
-  Future<List<DeviceFingerprint>?> _getFingerprintsForJidImpl(String jid) async {
+  Future<List<DeviceFingerprint>?> _getFingerprintsForJidImpl(
+    String jid,
+  ) async {
     // Check if we know of the JID.
     if (!_deviceList.containsKey(jid)) {
       return null;

lib/src/omemo/queue.dart

@@ -87,7 +87,10 @@ class RatchetAccessQueue {
     });
   }
 
-  Future<T> synchronized<T>(List<String> jids, Future<T> Function() function) async {
+  Future<T> synchronized<T>(
+    List<String> jids,
+    Future<T> Function() function,
+  ) async {
     await enterCriticalSection(jids);
     final result = await function();
     await leaveCriticalSection(jids);

lib/src/x3dh/x3dh.dart

@@ -71,7 +71,8 @@ Future<List<int>> kdf(List<int> km) async {
 
 /// Alice builds a session with Bob using his bundle [bundle] and Alice's identity key
 /// pair [ik].
-Future<Result<InvalidKeyExchangeSignatureError, X3DHAliceResult>> x3dhFromBundle(
+Future<Result<InvalidKeyExchangeSignatureError, X3DHAliceResult>>
+    x3dhFromBundle(
   OmemoBundle bundle,
   OmemoKeyPair ik,
 ) async {

test/omemo_test.dart

@@ -203,7 +203,7 @@ void main() {
 
     // Alice now sends 52 messages that Bob decrypts
     for (var i = 0; i < 52; i++) {
-      Logger.root.finest('${i+1}/52');
+      Logger.root.finest('${i + 1}/52');
       final aliceResultLoop = await aliceManager.onOutgoingStanza(
         OmemoOutgoingStanza(
           [bobJid],
@@ -934,7 +934,10 @@ void main() {
 
     expect(aliceResult.isSuccess(2), isFalse);
     expect(aliceResult.deviceEncryptionErrors[cocoJid]!.length, 1);
-    expect(aliceResult.deviceEncryptionErrors[cocoJid]!.first.error, const TypeMatcher<NoKeyMaterialAvailableError>(),);
+    expect(
+      aliceResult.deviceEncryptionErrors[cocoJid]!.first.error,
+      const TypeMatcher<NoKeyMaterialAvailableError>(),
+    );
 
     // Bob decrypts it
     final bobResult = await bobManager.onIncomingStanza(
@@ -1243,7 +1246,10 @@ void main() {
     Logger.root.info('Removing all ratchets for $bobJid');
     await aliceManager.removeAllRatchets(bobJid);
 
-    expect(aliceManager.getRatchet(RatchetMapKey(bobJid, bobDevice.id)), isNull);
+    expect(
+      aliceManager.getRatchet(RatchetMapKey(bobJid, bobDevice.id)),
+      isNull,
+    );
 
     // Alice prepares an empty OMEMO message
     await aliceManager.sendOmemoHeartbeat(bobJid);

test/queue_test.dart

@@ -1,9 +1,12 @@
 import 'dart:async';
-
 import 'package:omemo_dart/src/omemo/queue.dart';
 import 'package:test/test.dart';
 
-Future<void> testMethod(RatchetAccessQueue queue, List<String> data, int duration) async {
+Future<void> testMethod(
+  RatchetAccessQueue queue,
+  List<String> data,
+  int duration,
+) async {
   await queue.enterCriticalSection(data);
 
   await Future<void>.delayed(Duration(seconds: duration));
@@ -48,7 +51,10 @@ void main() {
     expect(queue.runningOperations.length, 4);
     expect(
       queue.runningOperations.containsAll([
-        'a', 'b', 'c', 'd',
+        'a',
+        'b',
+        'c',
+        'd',
       ]),
       isTrue,
     );