famedlysdk/test/encryption/ssss_test.dart

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/*
* Ansible inventory script used at Famedly GmbH for managing many hosts
* Copyright (C) 2020 Famedly GmbH
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import 'dart:typed_data';
import 'dart:convert';
import 'package:famedlysdk/famedlysdk.dart';
import 'package:famedlysdk/matrix_api.dart';
import 'package:famedlysdk/encryption.dart';
import 'package:test/test.dart';
import 'package:encrypt/encrypt.dart';
import 'package:olm/olm.dart' as olm;
import '../fake_client.dart';
import '../fake_matrix_api.dart';
void main() {
group('SSSS', () {
var olmEnabled = true;
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try {
olm.init();
olm.Account();
} catch (_) {
olmEnabled = false;
print('[LibOlm] Failed to load LibOlm: ' + _.toString());
}
print('[LibOlm] Enabled: $olmEnabled');
if (!olmEnabled) return;
Client client;
test('setupClient', () async {
client = await getClient();
});
test('basic things', () async {
expect(client.encryption.ssss.defaultKeyId,
'0FajDWYaM6wQ4O60OZnLvwZfsBNu4Bu3');
});
test('encrypt / decrypt', () {
final key = Uint8List.fromList(SecureRandom(32).bytes);
final enc = SSSS.encryptAes('secret foxies', key, 'name');
final dec = SSSS.decryptAes(enc, key, 'name');
expect(dec, 'secret foxies');
});
test('store', () async {
final handle = client.encryption.ssss.open();
var failed = false;
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try {
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handle.unlock(passphrase: 'invalid');
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} catch (_) {
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failed = true;
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}
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expect(failed, true);
expect(handle.isUnlocked, false);
failed = false;
try {
handle.unlock(recoveryKey: 'invalid');
} catch (_) {
failed = true;
}
expect(failed, true);
expect(handle.isUnlocked, false);
handle.unlock(passphrase: SSSS_PASSPHRASE);
handle.unlock(recoveryKey: SSSS_KEY);
expect(handle.isUnlocked, true);
FakeMatrixApi.calledEndpoints.clear();
await handle.store('best animal', 'foxies');
// alright, since we don't properly sync we will manually have to update
// account_data for this test
final content = FakeMatrixApi
.calledEndpoints[
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'/client/r0/user/%40test%3AfakeServer.notExisting/account_data/best%20animal']
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.first;
client.accountData['best animal'] = BasicEvent.fromJson({
'type': 'best animal',
'content': json.decode(content),
});
expect(await handle.getStored('best animal'), 'foxies');
});
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test('cache', () async {
final handle =
client.encryption.ssss.open('m.cross_signing.self_signing');
handle.unlock(recoveryKey: SSSS_KEY);
expect(
(await client.encryption.ssss
.getCached('m.cross_signing.self_signing')) !=
null,
false);
expect(
(await client.encryption.ssss
.getCached('m.cross_signing.user_signing')) !=
null,
false);
await handle.getStored('m.cross_signing.self_signing');
expect(
(await client.encryption.ssss
.getCached('m.cross_signing.self_signing')) !=
null,
true);
await handle.maybeCacheAll();
expect(
(await client.encryption.ssss
.getCached('m.cross_signing.user_signing')) !=
null,
true);
expect(
(await client.encryption.ssss.getCached('m.megolm_backup.v1')) !=
null,
true);
});
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test('make share requests', () async {
final key =
client.userDeviceKeys[client.userID].deviceKeys['OTHERDEVICE'];
key.setDirectVerified(true);
FakeMatrixApi.calledEndpoints.clear();
await client.encryption.ssss.request('some.type', [key]);
expect(
FakeMatrixApi.calledEndpoints.keys.any(
(k) => k.startsWith('/client/r0/sendToDevice/m.room.encrypted')),
true);
});
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test('answer to share requests', () async {
var event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.request',
content: {
'action': 'request',
'requesting_device_id': 'OTHERDEVICE',
'name': 'm.cross_signing.self_signing',
'request_id': '1',
},
);
FakeMatrixApi.calledEndpoints.clear();
await client.encryption.ssss.handleToDeviceEvent(event);
expect(
FakeMatrixApi.calledEndpoints.keys.any(
(k) => k.startsWith('/client/r0/sendToDevice/m.room.encrypted')),
true);
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// now test some fail scenarios
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// not by us
event = ToDeviceEvent(
sender: '@someotheruser:example.org',
type: 'm.secret.request',
content: {
'action': 'request',
'requesting_device_id': 'OTHERDEVICE',
'name': 'm.cross_signing.self_signing',
'request_id': '1',
},
);
FakeMatrixApi.calledEndpoints.clear();
await client.encryption.ssss.handleToDeviceEvent(event);
expect(
FakeMatrixApi.calledEndpoints.keys.any(
(k) => k.startsWith('/client/r0/sendToDevice/m.room.encrypted')),
false);
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// secret not cached
event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.request',
content: {
'action': 'request',
'requesting_device_id': 'OTHERDEVICE',
'name': 'm.unknown.secret',
'request_id': '1',
},
);
FakeMatrixApi.calledEndpoints.clear();
await client.encryption.ssss.handleToDeviceEvent(event);
expect(
FakeMatrixApi.calledEndpoints.keys.any(
(k) => k.startsWith('/client/r0/sendToDevice/m.room.encrypted')),
false);
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// is a cancelation
event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.request',
content: {
'action': 'request_cancellation',
'requesting_device_id': 'OTHERDEVICE',
'name': 'm.cross_signing.self_signing',
'request_id': '1',
},
);
FakeMatrixApi.calledEndpoints.clear();
await client.encryption.ssss.handleToDeviceEvent(event);
expect(
FakeMatrixApi.calledEndpoints.keys.any(
(k) => k.startsWith('/client/r0/sendToDevice/m.room.encrypted')),
false);
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// device not verified
final key =
client.userDeviceKeys[client.userID].deviceKeys['OTHERDEVICE'];
key.setDirectVerified(false);
event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.request',
content: {
'action': 'request',
'requesting_device_id': 'OTHERDEVICE',
'name': 'm.cross_signing.self_signing',
'request_id': '1',
},
);
FakeMatrixApi.calledEndpoints.clear();
await client.encryption.ssss.handleToDeviceEvent(event);
expect(
FakeMatrixApi.calledEndpoints.keys.any(
(k) => k.startsWith('/client/r0/sendToDevice/m.room.encrypted')),
false);
key.setDirectVerified(true);
});
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test('receive share requests', () async {
final key =
client.userDeviceKeys[client.userID].deviceKeys['OTHERDEVICE'];
key.setDirectVerified(true);
final handle =
client.encryption.ssss.open('m.cross_signing.self_signing');
handle.unlock(recoveryKey: SSSS_KEY);
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await client.database.clearSSSSCache(client.id);
client.encryption.ssss.pendingShareRequests.clear();
await client.encryption.ssss.request('best animal', [key]);
var event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.send',
content: {
'request_id': client.encryption.ssss.pendingShareRequests.keys.first,
'secret': 'foxies!',
},
encryptedContent: {
'sender_key': key.curve25519Key,
},
);
await client.encryption.ssss.handleToDeviceEvent(event);
expect(await client.encryption.ssss.getCached('best animal'), 'foxies!');
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// test the different validators
for (final type in [
'm.cross_signing.self_signing',
'm.cross_signing.user_signing',
'm.megolm_backup.v1'
]) {
final secret = await handle.getStored(type);
await client.database.clearSSSSCache(client.id);
client.encryption.ssss.pendingShareRequests.clear();
await client.encryption.ssss.request(type, [key]);
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event = ToDeviceEvent(
sender: client.userID,
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type: 'm.secret.send',
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content: {
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'request_id':
client.encryption.ssss.pendingShareRequests.keys.first,
'secret': secret,
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},
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encryptedContent: {
'sender_key': key.curve25519Key,
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},
);
await client.encryption.ssss.handleToDeviceEvent(event);
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expect(await client.encryption.ssss.getCached(type), secret);
}
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// test different fail scenarios
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// not encrypted
await client.database.clearSSSSCache(client.id);
client.encryption.ssss.pendingShareRequests.clear();
await client.encryption.ssss.request('best animal', [key]);
event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.send',
content: {
'request_id': client.encryption.ssss.pendingShareRequests.keys.first,
'secret': 'foxies!',
},
);
await client.encryption.ssss.handleToDeviceEvent(event);
expect(await client.encryption.ssss.getCached('best animal'), null);
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// unknown request id
await client.database.clearSSSSCache(client.id);
client.encryption.ssss.pendingShareRequests.clear();
await client.encryption.ssss.request('best animal', [key]);
event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.send',
content: {
'request_id': 'invalid',
'secret': 'foxies!',
},
encryptedContent: {
'sender_key': key.curve25519Key,
},
);
await client.encryption.ssss.handleToDeviceEvent(event);
expect(await client.encryption.ssss.getCached('best animal'), null);
// not from a device we sent the request to
await client.database.clearSSSSCache(client.id);
client.encryption.ssss.pendingShareRequests.clear();
await client.encryption.ssss.request('best animal', [key]);
event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.send',
content: {
'request_id': client.encryption.ssss.pendingShareRequests.keys.first,
'secret': 'foxies!',
},
encryptedContent: {
'sender_key': 'invalid',
},
);
await client.encryption.ssss.handleToDeviceEvent(event);
expect(await client.encryption.ssss.getCached('best animal'), null);
// secret not a string
await client.database.clearSSSSCache(client.id);
client.encryption.ssss.pendingShareRequests.clear();
await client.encryption.ssss.request('best animal', [key]);
event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.send',
content: {
'request_id': client.encryption.ssss.pendingShareRequests.keys.first,
'secret': 42,
},
encryptedContent: {
'sender_key': key.curve25519Key,
},
);
await client.encryption.ssss.handleToDeviceEvent(event);
expect(await client.encryption.ssss.getCached('best animal'), null);
// validator doesn't check out
await client.database.clearSSSSCache(client.id);
client.encryption.ssss.pendingShareRequests.clear();
await client.encryption.ssss.request('m.megolm_backup.v1', [key]);
event = ToDeviceEvent(
sender: client.userID,
type: 'm.secret.send',
content: {
'request_id': client.encryption.ssss.pendingShareRequests.keys.first,
'secret': 'foxies!',
},
encryptedContent: {
'sender_key': key.curve25519Key,
},
);
await client.encryption.ssss.handleToDeviceEvent(event);
expect(
await client.encryption.ssss.getCached('m.megolm_backup.v1'), null);
});
test('request all', () async {
final key =
client.userDeviceKeys[client.userID].deviceKeys['OTHERDEVICE'];
key.setDirectVerified(true);
await client.database.clearSSSSCache(client.id);
client.encryption.ssss.pendingShareRequests.clear();
await client.encryption.ssss.maybeRequestAll([key]);
expect(client.encryption.ssss.pendingShareRequests.length, 3);
});
test('dispose client', () async {
await client.dispose(closeDatabase: true);
});
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});
}