797 lines
23 KiB
Dart
797 lines
23 KiB
Dart
import 'package:logging/logging.dart';
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import 'package:omemo_dart/omemo_dart.dart';
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import 'package:omemo_dart/src/trust/always.dart';
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import 'package:omemo_dart/src/trust/never.dart';
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import 'package:test/test.dart';
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void main() {
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Logger.root
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..level = Level.ALL
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..onRecord.listen((record) {
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// ignore: avoid_print
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print('${record.level.name}: ${record.message}');
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});
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test('Test replacing a onetime prekey', () async {
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const aliceJid = 'alice@server.example';
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final device = await Device.generateNewDevice(aliceJid, opkAmount: 1);
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final newDevice = await device.replaceOnetimePrekey(0);
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expect(device.jid, newDevice.jid);
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expect(device.id, newDevice.id);
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var opksMatch = true;
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if (newDevice.opks.length != device.opks.length) {
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opksMatch = false;
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} else {
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for (final entry in device.opks.entries) {
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final m = await newDevice.opks[entry.key]?.equals(entry.value) ?? false;
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if (!m) opksMatch = false;
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}
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}
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expect(opksMatch, true);
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expect(await device.ik.equals(newDevice.ik), true);
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expect(await device.spk.equals(newDevice.spk), true);
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final oldSpkMatch = device.oldSpk != null ?
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await device.oldSpk!.equals(newDevice.oldSpk!) :
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newDevice.oldSpk == null;
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expect(oldSpkMatch, true);
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expect(listsEqual(device.spkSignature, newDevice.spkSignature), true);
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});
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test('Test using OMEMO sessions with only one device per user', () async {
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const aliceJid = 'alice@server.example';
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const bobJid = 'bob@other.server.example';
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// Alice and Bob generate their sessions
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var deviceModified = false;
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var ratchetModified = 0;
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var deviceMapModified = 0;
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final aliceSession = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobOpks = (await bobSession.getDevice()).opks.values.toList();
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bobSession.eventStream.listen((event) {
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if (event is DeviceModifiedEvent) {
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deviceModified = true;
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} else if (event is RatchetModifiedEvent) {
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ratchetModified++;
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} else if (event is DeviceMapModifiedEvent) {
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deviceMapModified++;
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}
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});
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// Alice encrypts a message for Bob
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const messagePlaintext = 'Hello Bob!';
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final aliceMessage = await aliceSession.encryptToJid(
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bobJid,
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messagePlaintext,
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newSessions: [
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await bobSession.getDeviceBundle(),
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],
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);
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expect(aliceMessage.encryptedKeys.length, 1);
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// Alice sends the message to Bob
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// ...
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// Bob decrypts it
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final bobMessage = await bobSession.decryptMessage(
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aliceMessage.ciphertext,
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aliceJid,
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await aliceSession.getDeviceId(),
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aliceMessage.encryptedKeys,
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);
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expect(messagePlaintext, bobMessage);
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// The ratchet should be modified two times: Once for when the ratchet is created and
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// other time for when the message is decrypted
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expect(ratchetModified, 2);
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// Bob's device map should be modified once
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expect(deviceMapModified, 1);
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// The event should be triggered
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expect(deviceModified, true);
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// Bob should have replaced his OPK
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expect(
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listsEqual(bobOpks, (await bobSession.getDevice()).opks.values.toList()),
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false,
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);
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// Bob responds to Alice
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const bobResponseText = 'Oh, hello Alice!';
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final bobResponseMessage = await bobSession.encryptToJid(
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aliceJid,
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bobResponseText,
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);
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// Bob sends the message to Alice
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// ...
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// Alice decrypts it
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final aliceReceivedMessage = await aliceSession.decryptMessage(
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bobResponseMessage.ciphertext,
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bobJid,
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await bobSession.getDeviceId(),
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bobResponseMessage.encryptedKeys,
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);
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expect(bobResponseText, aliceReceivedMessage);
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});
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test('Test using OMEMO sessions with only two devices for the receiver', () async {
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const aliceJid = 'alice@server.example';
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const bobJid = 'bob@other.server.example';
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// Alice and Bob generate their sessions
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final aliceSession = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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// Bob's other device
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final bobSession2 = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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// Alice encrypts a message for Bob
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const messagePlaintext = 'Hello Bob!';
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final aliceMessage = await aliceSession.encryptToJid(
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bobJid,
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messagePlaintext,
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newSessions: [
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await bobSession.getDeviceBundle(),
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await bobSession2.getDeviceBundle(),
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],
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);
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expect(aliceMessage.encryptedKeys.length, 2);
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expect(aliceMessage.encryptedKeys[0].kex, true);
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expect(aliceMessage.encryptedKeys[1].kex, true);
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// Alice sends the message to Bob
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// ...
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// Bob decrypts it
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final bobMessage = await bobSession.decryptMessage(
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aliceMessage.ciphertext,
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aliceJid,
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await aliceSession.getDeviceId(),
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aliceMessage.encryptedKeys,
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);
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expect(messagePlaintext, bobMessage);
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// Bob responds to Alice
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const bobResponseText = 'Oh, hello Alice!';
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final bobResponseMessage = await bobSession.encryptToJid(
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aliceJid,
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bobResponseText,
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);
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// Bob sends the message to Alice
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// ...
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// Alice decrypts it
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final aliceReceivedMessage = await aliceSession.decryptMessage(
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bobResponseMessage.ciphertext,
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bobJid,
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await bobSession.getDeviceId(),
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bobResponseMessage.encryptedKeys,
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);
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expect(bobResponseText, aliceReceivedMessage);
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// Alice checks the fingerprints
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final fingerprints = await aliceSession.getHexFingerprintsForJid(bobJid);
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// Check that they the fingerprints are correct
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expect(fingerprints.length, 2);
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expect(fingerprints[0] != fingerprints[1], true);
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// Check that those two calls do not throw an exception
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aliceSession
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..getRatchet(bobJid, fingerprints[0].deviceId)
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..getRatchet(bobJid, fingerprints[1].deviceId);
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});
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test('Test using OMEMO sessions with encrypt to self', () async {
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const aliceJid = 'alice@server.example';
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const bobJid = 'bob@other.server.example';
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// Alice and Bob generate their sessions
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final aliceSession1 = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final aliceSession2 = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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// Alice encrypts a message for Bob
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const messagePlaintext = 'Hello Bob!';
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final aliceMessage = await aliceSession1.encryptToJids(
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[bobJid, aliceJid],
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messagePlaintext,
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newSessions: [
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await bobSession.getDeviceBundle(),
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await aliceSession2.getDeviceBundle(),
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],
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);
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expect(aliceMessage.encryptedKeys.length, 2);
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// Alice sends the message to Bob
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// ...
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// Bob decrypts it
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final bobMessage = await bobSession.decryptMessage(
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aliceMessage.ciphertext,
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aliceJid,
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await aliceSession1.getDeviceId(),
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aliceMessage.encryptedKeys,
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);
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expect(messagePlaintext, bobMessage);
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// Alice's other device decrypts it
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final aliceMessage2 = await aliceSession2.decryptMessage(
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aliceMessage.ciphertext,
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aliceJid,
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await aliceSession1.getDeviceId(),
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aliceMessage.encryptedKeys,
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);
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expect(messagePlaintext, aliceMessage2);
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});
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test('Test sending empty OMEMO messages', () async {
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const aliceJid = 'alice@server.example';
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const bobJid = 'bob@other.server.example';
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// Alice and Bob generate their sessions
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final aliceSession = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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// Alice encrypts a message for Bob
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final aliceMessage = await aliceSession.encryptToJid(
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bobJid,
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null,
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newSessions: [
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await bobSession.getDeviceBundle(),
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],
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);
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expect(aliceMessage.encryptedKeys.length, 1);
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expect(aliceMessage.ciphertext, null);
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// Alice sends the message to Bob
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// ...
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// Bob decrypts it
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final bobMessage = await bobSession.decryptMessage(
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aliceMessage.ciphertext,
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aliceJid,
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await aliceSession.getDeviceId(),
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aliceMessage.encryptedKeys,
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);
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expect(bobMessage, null);
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// This call must not cause an exception
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bobSession.getRatchet(aliceJid, await aliceSession.getDeviceId());
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});
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test('Test rotating the Signed Prekey', () async {
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// Generate the session
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const aliceJid = 'alice@some.server';
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final aliceSession = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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// Setup an event listener
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final oldDevice = await aliceSession.getDevice();
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Device? newDevice;
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aliceSession.eventStream.listen((event) {
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if (event is DeviceModifiedEvent) {
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newDevice = event.device;
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}
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});
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// Rotate the Signed Prekey
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await aliceSession.rotateSignedPrekey();
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// Just for safety...
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await Future<void>.delayed(const Duration(seconds: 2));
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expect(await oldDevice.equals(newDevice!), false);
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expect(await newDevice!.equals(await aliceSession.getDevice()), true);
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expect(await newDevice!.oldSpk!.equals(oldDevice.spk), true);
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expect(newDevice!.oldSpkId, oldDevice.spkId);
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});
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test('Test accepting a session with an old SPK', () async {
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const aliceJid = 'alice@server.example';
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const bobJid = 'bob@other.server.example';
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// Alice and Bob generate their sessions
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final aliceSession = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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// Alice encrypts a message for Bob
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const messagePlaintext = 'Hello Bob!';
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final aliceMessage = await aliceSession.encryptToJid(
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bobJid,
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messagePlaintext,
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newSessions: [
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await bobSession.getDeviceBundle(),
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],
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);
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expect(aliceMessage.encryptedKeys.length, 1);
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// Alice loses her Internet connection. Bob rotates his SPK.
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await bobSession.rotateSignedPrekey();
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// Alice regains her Internet connection and sends the message to Bob
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// ...
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// Bob decrypts it
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final bobMessage = await bobSession.decryptMessage(
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aliceMessage.ciphertext,
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aliceJid,
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await aliceSession.getDeviceId(),
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aliceMessage.encryptedKeys,
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);
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expect(messagePlaintext, bobMessage);
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});
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test('Test trust bypassing with empty OMEMO messages', () async {
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const aliceJid = 'alice@server.example';
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const bobJid = 'bob@other.server.example';
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// Alice and Bob generate their sessions
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final aliceSession = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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NeverTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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NeverTrustingTrustManager(),
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opkAmount: 1,
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);
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// Alice encrypts an empty message for Bob
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final aliceMessage = await aliceSession.encryptToJid(
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bobJid,
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null,
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newSessions: [
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await bobSession.getDeviceBundle(),
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],
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);
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// Despite Alice not trusting Bob's device, we should have encrypted it for his
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// untrusted device.
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expect(aliceMessage.encryptedKeys.length, 1);
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});
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test('Test by sending multiple messages back and forth', () async {
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const aliceJid = 'alice@server.example';
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const bobJid = 'bob@other.server.example';
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// Alice and Bob generate their sessions
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final aliceSession = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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// Alice encrypts a message for Bob
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final aliceMessage = await aliceSession.encryptToJid(
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bobJid,
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'Hello Bob!',
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newSessions: [
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await bobSession.getDeviceBundle(),
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],
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);
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// Alice sends the message to Bob
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// ...
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await bobSession.decryptMessage(
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aliceMessage.ciphertext,
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aliceJid,
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await aliceSession.getDeviceId(),
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aliceMessage.encryptedKeys,
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);
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for (var i = 0; i < 100; i++) {
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final messageText = 'Test Message #$i';
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// Bob responds to Alice
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final bobResponseMessage = await bobSession.encryptToJid(
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aliceJid,
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messageText,
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);
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// Bob sends the message to Alice
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// ...
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// Alice decrypts it
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final aliceReceivedMessage = await aliceSession.decryptMessage(
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bobResponseMessage.ciphertext,
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bobJid,
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await bobSession.getDeviceId(),
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bobResponseMessage.encryptedKeys,
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);
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expect(messageText, aliceReceivedMessage);
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}
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});
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group('Test removing a ratchet', () {
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test('Test removing a ratchet when the user has multiple', () async {
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const aliceJid = 'alice@server.local';
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const bobJid = 'bob@some.server.local';
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final aliceSession = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession1 = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession2 = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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// Alice sends a message to those two Bobs
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await aliceSession.encryptToJid(
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bobJid,
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'Hallo Welt',
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newSessions: [
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await bobSession1.getDeviceBundle(),
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await bobSession2.getDeviceBundle(),
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],
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);
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// One of those two sessions is broken, so Alice removes the session2 ratchet
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final id1 = await bobSession1.getDeviceId();
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final id2 = await bobSession2.getDeviceId();
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await aliceSession.removeRatchet(bobJid, id1);
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final map = aliceSession.getRatchetMap();
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expect(map.containsKey(RatchetMapKey(bobJid, id1)), false);
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expect(map.containsKey(RatchetMapKey(bobJid, id2)), true);
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final deviceMap = await aliceSession.getDeviceMap();
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expect(deviceMap.containsKey(bobJid), true);
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expect(deviceMap[bobJid], [id2]);
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});
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test('Test removing a ratchet when the user has only one', () async {
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const aliceJid = 'alice@server.local';
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const bobJid = 'bob@some.server.local';
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final aliceSession = await OmemoSessionManager.generateNewIdentity(
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aliceJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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final bobSession = await OmemoSessionManager.generateNewIdentity(
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bobJid,
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AlwaysTrustingTrustManager(),
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opkAmount: 1,
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);
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// Alice sends a message to those two Bobs
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await aliceSession.encryptToJid(
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bobJid,
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'Hallo Welt',
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newSessions: [
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await bobSession.getDeviceBundle(),
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],
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);
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// One of those two sessions is broken, so Alice removes the session2 ratchet
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final id = await bobSession.getDeviceId();
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await aliceSession.removeRatchet(bobJid, id);
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final map = aliceSession.getRatchetMap();
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expect(map.containsKey(RatchetMapKey(bobJid, id)), false);
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final deviceMap = await aliceSession.getDeviceMap();
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expect(deviceMap.containsKey(bobJid), false);
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});
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});
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test('Test acknowledging a ratchet', () async {
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const aliceJid = 'alice@server.example';
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const bobJid = 'bob@other.server.example';
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// Alice and Bob generate their sessions
|
|
final aliceSession = await OmemoSessionManager.generateNewIdentity(
|
|
aliceJid,
|
|
AlwaysTrustingTrustManager(),
|
|
opkAmount: 1,
|
|
);
|
|
final bobSession = await OmemoSessionManager.generateNewIdentity(
|
|
bobJid,
|
|
AlwaysTrustingTrustManager(),
|
|
opkAmount: 1,
|
|
);
|
|
|
|
// Alice sends Bob a message
|
|
await aliceSession.encryptToJid(
|
|
bobJid,
|
|
'Hallo Welt',
|
|
newSessions: [
|
|
await bobSession.getDeviceBundle(),
|
|
],
|
|
);
|
|
expect(
|
|
await aliceSession.getUnacknowledgedRatchets(bobJid),
|
|
[
|
|
await bobSession.getDeviceId(),
|
|
],
|
|
);
|
|
|
|
// Bob sends alice an empty message
|
|
// ...
|
|
|
|
// Alice decrypts it
|
|
// ...
|
|
|
|
// Alice marks the ratchet as acknowledged
|
|
await aliceSession.ratchetAcknowledged(bobJid, await bobSession.getDeviceId());
|
|
expect(
|
|
(await aliceSession.getUnacknowledgedRatchets(bobJid))!.isEmpty,
|
|
true,
|
|
);
|
|
});
|
|
|
|
test('Test overwriting sessions', () async {
|
|
const aliceJid = 'alice@server.example';
|
|
const bobJid = 'bob@other.server.example';
|
|
// Alice and Bob generate their sessions
|
|
final aliceSession = await OmemoSessionManager.generateNewIdentity(
|
|
aliceJid,
|
|
AlwaysTrustingTrustManager(),
|
|
opkAmount: 1,
|
|
);
|
|
final bobSession = await OmemoSessionManager.generateNewIdentity(
|
|
bobJid,
|
|
AlwaysTrustingTrustManager(),
|
|
opkAmount: 2,
|
|
);
|
|
|
|
// Alice sends Bob a message
|
|
final msg1 = await aliceSession.encryptToJid(
|
|
bobJid,
|
|
'Hallo Welt',
|
|
newSessions: [
|
|
await bobSession.getDeviceBundle(),
|
|
],
|
|
);
|
|
await bobSession.decryptMessage(
|
|
msg1.ciphertext,
|
|
aliceJid,
|
|
await aliceSession.getDeviceId(),
|
|
msg1.encryptedKeys,
|
|
);
|
|
final aliceRatchet1 = aliceSession.getRatchet(
|
|
bobJid,
|
|
await bobSession.getDeviceId(),
|
|
);
|
|
final bobRatchet1 = bobSession.getRatchet(
|
|
aliceJid,
|
|
await aliceSession.getDeviceId(),
|
|
);
|
|
|
|
// Alice is impatient and immediately sends another message before the original one
|
|
// can be acknowledged by Bob
|
|
final msg2 = await aliceSession.encryptToJid(
|
|
bobJid,
|
|
"Why don't you answer?",
|
|
newSessions: [
|
|
await bobSession.getDeviceBundle(),
|
|
],
|
|
);
|
|
await bobSession.decryptMessage(
|
|
msg2.ciphertext,
|
|
aliceJid,
|
|
await aliceSession.getDeviceId(),
|
|
msg2.encryptedKeys,
|
|
);
|
|
final aliceRatchet2 = aliceSession.getRatchet(
|
|
bobJid,
|
|
await bobSession.getDeviceId(),
|
|
);
|
|
final bobRatchet2 = bobSession.getRatchet(
|
|
aliceJid,
|
|
await aliceSession.getDeviceId(),
|
|
);
|
|
|
|
// Both should only have one ratchet
|
|
expect(aliceSession.getRatchetMap().length, 1);
|
|
expect(bobSession.getRatchetMap().length, 1);
|
|
|
|
// The ratchets should both be different
|
|
expect(await aliceRatchet1.equals(aliceRatchet2), false);
|
|
expect(await bobRatchet1.equals(bobRatchet2), false);
|
|
});
|
|
|
|
test('Test receiving an old message that contains a KEX', () async {
|
|
const aliceJid = 'alice@server.example';
|
|
const bobJid = 'bob@other.server.example';
|
|
// Alice and Bob generate their sessions
|
|
final aliceSession = await OmemoSessionManager.generateNewIdentity(
|
|
aliceJid,
|
|
AlwaysTrustingTrustManager(),
|
|
opkAmount: 1,
|
|
);
|
|
final bobSession = await OmemoSessionManager.generateNewIdentity(
|
|
bobJid,
|
|
AlwaysTrustingTrustManager(),
|
|
opkAmount: 2,
|
|
);
|
|
|
|
// Alice sends Bob a message
|
|
final msg1 = await aliceSession.encryptToJid(
|
|
bobJid,
|
|
'Hallo Welt',
|
|
newSessions: [
|
|
await bobSession.getDeviceBundle(),
|
|
],
|
|
);
|
|
|
|
await bobSession.decryptMessage(
|
|
msg1.ciphertext,
|
|
aliceJid,
|
|
await aliceSession.getDeviceId(),
|
|
msg1.encryptedKeys,
|
|
);
|
|
|
|
// Bob responds
|
|
final msg2 = await bobSession.encryptToJid(
|
|
aliceJid,
|
|
'Hello!',
|
|
);
|
|
await aliceSession.decryptMessage(
|
|
msg2.ciphertext,
|
|
bobJid,
|
|
await bobSession.getDeviceId(),
|
|
msg2.encryptedKeys,
|
|
);
|
|
|
|
// Due to some issue with the transport protocol, the first message Bob received is
|
|
// received again
|
|
try {
|
|
await bobSession.decryptMessage(
|
|
msg1.ciphertext,
|
|
aliceJid,
|
|
await aliceSession.getDeviceId(),
|
|
msg1.encryptedKeys,
|
|
);
|
|
expect(true, false);
|
|
} on InvalidMessageHMACException {
|
|
// NOOP
|
|
}
|
|
|
|
final msg3 = await aliceSession.encryptToJid(
|
|
bobJid,
|
|
'Are you okay?',
|
|
);
|
|
final result = await bobSession.decryptMessage(
|
|
msg3.ciphertext,
|
|
aliceJid,
|
|
await aliceSession.getDeviceId(),
|
|
msg3.encryptedKeys,
|
|
);
|
|
|
|
expect(result, 'Are you okay?');
|
|
});
|
|
|
|
test('Test receiving an old message that does not contain a KEX', () async {
|
|
const aliceJid = 'alice@server.example';
|
|
const bobJid = 'bob@other.server.example';
|
|
// Alice and Bob generate their sessions
|
|
final aliceSession = await OmemoSessionManager.generateNewIdentity(
|
|
aliceJid,
|
|
AlwaysTrustingTrustManager(),
|
|
opkAmount: 1,
|
|
);
|
|
final bobSession = await OmemoSessionManager.generateNewIdentity(
|
|
bobJid,
|
|
AlwaysTrustingTrustManager(),
|
|
opkAmount: 2,
|
|
);
|
|
|
|
// Alice sends Bob a message
|
|
final msg1 = await aliceSession.encryptToJid(
|
|
bobJid,
|
|
'Hallo Welt',
|
|
newSessions: [
|
|
await bobSession.getDeviceBundle(),
|
|
],
|
|
);
|
|
await bobSession.decryptMessage(
|
|
msg1.ciphertext,
|
|
aliceJid,
|
|
await aliceSession.getDeviceId(),
|
|
msg1.encryptedKeys,
|
|
);
|
|
|
|
// Bob responds
|
|
final msg2 = await bobSession.encryptToJid(
|
|
aliceJid,
|
|
'Hello!',
|
|
);
|
|
await aliceSession.decryptMessage(
|
|
msg2.ciphertext,
|
|
bobJid,
|
|
await bobSession.getDeviceId(),
|
|
msg2.encryptedKeys,
|
|
);
|
|
|
|
// Due to some issue with the transport protocol, the first message Alice received is
|
|
// received again.
|
|
try {
|
|
await aliceSession.decryptMessage(
|
|
msg2.ciphertext,
|
|
bobJid,
|
|
await bobSession.getDeviceId(),
|
|
msg2.encryptedKeys,
|
|
);
|
|
expect(true, false);
|
|
} catch (_) {
|
|
// NOOP
|
|
}
|
|
|
|
final msg3 = await aliceSession.encryptToJid(
|
|
bobJid,
|
|
'Are you okay?',
|
|
);
|
|
final result = await bobSession.decryptMessage(
|
|
msg3.ciphertext,
|
|
aliceJid,
|
|
await aliceSession.getDeviceId(),
|
|
msg3.encryptedKeys,
|
|
);
|
|
|
|
expect(result, 'Are you okay?');
|
|
});
|
|
}
|