narayana/conversations-classic
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decrypt omemo messages

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This commit is contained in:
Daniel Gultsch 2023-02-24 17:36:49 +01:00
parent 49b4f54285
commit 2abcb1b4e4
No known key found for this signature in database
GPG key ID: F43D18AD2A0982C2
19 changed files with 111 additions and 42 deletions
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2
app/src/androidTest/java/im/conversations/android/xmpp/MessageTransformationTest.java
View file

@ -54,7 +54,7 @@ public class MessageTransformationTest {
final long id = database.accountDao().insert(account);
this.transformer =
new Transformer(database, database.accountDao().getEnabledAccount(id).get());
new Transformer(database.accountDao().getEnabledAccount(id).get(), database);
}
@Test

14
app/src/main/AndroidManifest.xml
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@ -79,9 +79,12 @@
<service
android:name=".service.ForegroundService"
android:exported="false" />
android:exported="false"/>
<service android:name=".service.RtpSessionService" android:exported="false" android:foregroundServiceType="phoneCall"/>
<service
android:name=".service.RtpSessionService"
android:exported="false"
android:foregroundServiceType="phoneCall" />
<receiver
android:name=".receiver.EventReceiver"
@ -95,16 +98,15 @@
<activity
android:name="im.conversations.android.ui.activity.MainActivity"
android:windowSoftInputMode="adjustResize"
android:exported="true"
android:launchMode="singleTask"
android:exported="true">
android:windowSoftInputMode="adjustResize">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="im.conversations.android.ui.activity.SettingsActivity" />
<activity android:name="im.conversations.android.ui.activity.SettingsActivity" />
<activity
android:name="im.conversations.android.ui.activity.SetupActivity"
android:windowSoftInputMode="adjustResize" />

8
app/src/main/java/im/conversations/android/AbstractAccountService.java
View file

@ -1,15 +1,15 @@
package im.conversations.android;
import android.content.Context;
import im.conversations.android.database.ConversationsDatabase;
import im.conversations.android.database.model.Account;
public abstract class AbstractAccountService {
protected Context context;
protected Account account;
protected ConversationsDatabase database;
protected AbstractAccountService(final Context context, final Account account) {
this.context = context;
protected AbstractAccountService(final Account account, final ConversationsDatabase database) {
this.account = account;
this.database = database;
}
}

4
app/src/main/java/im/conversations/android/axolotl/AxolotlPayload.java
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@ -24,4 +24,8 @@ public class AxolotlPayload {
public String payloadAsString() {
return new String(payload, StandardCharsets.UTF_8);
}
public boolean hasPayload() {
return payload != null;
}
}

17
app/src/main/java/im/conversations/android/axolotl/AxolotlService.java
View file

@ -1,11 +1,11 @@
package im.conversations.android.axolotl;
import android.content.Context;
import android.os.Build;
import com.google.common.base.Optional;
import eu.siacs.conversations.xmpp.jingle.OmemoVerification;
import im.conversations.android.AbstractAccountService;
import im.conversations.android.database.AxolotlDatabaseStore;
import im.conversations.android.database.ConversationsDatabase;
import im.conversations.android.database.model.Account;
import im.conversations.android.xmpp.model.axolotl.Encrypted;
import im.conversations.android.xmpp.model.axolotl.Header;
@ -22,6 +22,8 @@ import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.jxmpp.jid.Jid;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.whispersystems.libsignal.DuplicateMessageException;
import org.whispersystems.libsignal.IdentityKey;
import org.whispersystems.libsignal.InvalidKeyException;
@ -38,6 +40,8 @@ import org.whispersystems.libsignal.state.SignalProtocolStore;
public class AxolotlService extends AbstractAccountService {
private static final Logger LOGGER = LoggerFactory.getLogger(AxolotlService.class);
public static final String KEY_TYPE = "AES";
public static final String CIPHER_MODE = "AES/GCM/NoPadding";
@ -45,9 +49,10 @@ public class AxolotlService extends AbstractAccountService {
private final SignalProtocolStore signalProtocolStore;
public AxolotlService(final Context context, final Account account) {
super(context, account);
this.signalProtocolStore = new AxolotlDatabaseStore(context, account);
public AxolotlService(
final Account account, final ConversationsDatabase conversationsDatabase) {
super(account, conversationsDatabase);
this.signalProtocolStore = new AxolotlDatabaseStore(account, conversationsDatabase);
}
private AxolotlSession buildReceivingSession(
@ -119,6 +124,10 @@ public class AxolotlService extends AbstractAccountService {
final Header header = encrypted.getHeader();
final Key ourKey = header.getKey(signalProtocolStore.getLocalRegistrationId());
if (ourKey == null) {
LOGGER.info(
"looking for {} in {}",
signalProtocolStore.getLocalRegistrationId(),
header.getKeys());
throw new NotEncryptedForThisDeviceException();
}
final byte[] keyWithAuthTag;

8
app/src/main/java/im/conversations/android/database/AxolotlDatabaseStore.java
View file

@ -1,6 +1,5 @@
package im.conversations.android.database;
import android.content.Context;
import im.conversations.android.AbstractAccountService;
import im.conversations.android.axolotl.AxolotlAddress;
import im.conversations.android.database.dao.AxolotlDao;
@ -17,12 +16,13 @@ import org.whispersystems.libsignal.state.SignedPreKeyRecord;
public class AxolotlDatabaseStore extends AbstractAccountService implements SignalProtocolStore {
public AxolotlDatabaseStore(final Context context, final Account account) {
super(context, account);
public AxolotlDatabaseStore(
final Account account, final ConversationsDatabase conversationsDatabase) {
super(account, conversationsDatabase);
}
private AxolotlDao axolotlDao() {
return ConversationsDatabase.getInstance(context).axolotlDao();
return database.axolotlDao();
}
@Override

9
app/src/main/java/im/conversations/android/tls/TrustManager.java
View file

@ -1,16 +1,19 @@
package im.conversations.android.tls;
import android.content.Context;
import im.conversations.android.AbstractAccountService;
import im.conversations.android.database.model.Account;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.X509TrustManager;
public class TrustManager extends AbstractAccountService implements X509TrustManager {
public class TrustManager implements X509TrustManager {
private final Context context;
private final Account account;
public TrustManager(final Context context, final Account account) {
super(context, account);
this.context = context;
this.account = account;
}
@Override

37
app/src/main/java/im/conversations/android/transformer/Transformer.java
View file

@ -4,6 +4,8 @@ import com.google.common.base.Preconditions;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import im.conversations.android.axolotl.AxolotlDecryptionException;
import im.conversations.android.axolotl.AxolotlService;
import im.conversations.android.database.ConversationsDatabase;
import im.conversations.android.database.model.Account;
import im.conversations.android.database.model.ChatIdentifier;
@ -36,10 +38,20 @@ public class Transformer {
private final ConversationsDatabase database;
private final Account account;
public Transformer(final ConversationsDatabase database, final Account account) {
private final AxolotlService axolotlService;
public Transformer(final Account account, final ConversationsDatabase conversationsDatabase) {
this(account, conversationsDatabase, new AxolotlService(account, conversationsDatabase));
}
public Transformer(
final Account account,
final ConversationsDatabase database,
final AxolotlService axolotlService) {
Preconditions.checkArgument(account != null, "Account must not be null");
this.database = database;
this.account = account;
this.axolotlService = axolotlService;
}
public boolean transform(final MessageTransformation transformation) {
@ -72,11 +84,30 @@ public class Transformer {
chat, transformation.messageId, MessageState.error(transformation));
return false;
}
final Replace messageCorrection = transformation.getExtension(Replace.class);
final Reactions reactions = transformation.getExtension(Reactions.class);
final Retract retract = transformation.getExtension(Retract.class);
// TODO we need to remove fallbacks for reactions, retractions and potentially other things
final List<MessageContent> contents = parseContent(transformation);
final Encrypted encrypted = transformation.getExtension(Encrypted.class);
final List<MessageContent> contents;
if (encrypted != null) {
try {
final var payload = axolotlService.decrypt(transformation.from, encrypted);
if (payload.hasPayload()) {
contents = ImmutableList.of(MessageContent.text(payload.payloadAsString(),null));
} else {
return true;
}
} catch (final AxolotlDecryptionException e) {
LOGGER.error("Could not decrypt message", e);
// TODO if message had payload create error message entry
return false;
}
} else {
// TODO we need to remove fallbacks for reactions, retractions and potentially other
// things
contents = parseContent(transformation);
}
final boolean identifiableSender =
Arrays.asList(Message.Type.NORMAL, Message.Type.CHAT).contains(messageType)

9
app/src/main/java/im/conversations/android/xmpp/XmppConnection.java
View file

@ -17,7 +17,6 @@ import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.MoreExecutors;
import com.google.common.util.concurrent.SettableFuture;
import im.conversations.android.AbstractAccountService;
import im.conversations.android.BuildConfig;
import im.conversations.android.Conversations;
import im.conversations.android.IDs;
@ -106,13 +105,16 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xmlpull.v1.XmlPullParserException;
public class XmppConnection extends AbstractAccountService implements Runnable {
public class XmppConnection implements Runnable {
private static final Logger LOGGER = LoggerFactory.getLogger(XmppConnection.class);
private static final boolean EXTENDED_SM_LOGGING = false;
private static final int CONNECT_DISCO_TIMEOUT = 20;
private final Context context;
private final Account account;
private final SparseArray<Stanza> mStanzaQueue = new SparseArray<>();
private final Hashtable<String, Pair<Iq, Consumer<Iq>>> packetCallbacks = new Hashtable<>();
private Socket socket;
@ -155,7 +157,8 @@ public class XmppConnection extends AbstractAccountService implements Runnable {
private CountDownLatch mStreamCountDownLatch;
public XmppConnection(final Context context, final Account account) {
super(context, account);
this.context = context;
this.account = account;
this.connectionAddress = account.address;
// these consumers are pure listeners; they don’t have public method except for accept|apply

16
app/src/main/java/im/conversations/android/xmpp/manager/AxolotlManager.java
View file

@ -22,6 +22,7 @@ import im.conversations.android.axolotl.AxolotlPayload;
import im.conversations.android.axolotl.AxolotlService;
import im.conversations.android.axolotl.AxolotlSession;
import im.conversations.android.axolotl.EncryptionBuilder;
import im.conversations.android.database.ConversationsDatabase;
import im.conversations.android.xml.Element;
import im.conversations.android.xml.Namespace;
import im.conversations.android.xmpp.IqErrorException;
@ -60,7 +61,13 @@ public class AxolotlManager extends AbstractManager {
public AxolotlManager(Context context, XmppConnection connection) {
super(context, connection);
this.axolotlService = new AxolotlService(context, connection.getAccount());
this.axolotlService =
new AxolotlService(
connection.getAccount(), ConversationsDatabase.getInstance(context));
}
public AxolotlService getAxolotlService() {
return this.axolotlService;
}
public void handleItems(final BareJid from, final Items items) {
@ -286,8 +293,11 @@ public class AxolotlManager extends AbstractManager {
throw new IllegalStateException("No signed PreKeys have been created yet");
}
bundle.setSignedPreKey(
signedPreKeyRecord.getKeyPair().getPublicKey(), signedPreKeyRecord.getSignature());
bundle.setPreKeys(getDatabase().axolotlDao().getPreKeys(getAccount().id));
signedPreKeyRecord.getId(),
signedPreKeyRecord.getKeyPair().getPublicKey(),
signedPreKeyRecord.getSignature());
bundle.addPreKeys(getDatabase().axolotlDao().getPreKeys(getAccount().id));
LOGGER.info("bundle {}", bundle);
return bundle;
}

6
app/src/main/java/im/conversations/android/xmpp/model/axolotl/Bundle.java
View file

@ -40,14 +40,16 @@ public class Bundle extends Extension {
identityKey.setContent(ecPublicKey);
}
public void setSignedPreKey(final ECPublicKey ecPublicKey, final byte[] signature) {
public void setSignedPreKey(
final int id, final ECPublicKey ecPublicKey, final byte[] signature) {
final var signedPreKey = this.addExtension(new SignedPreKey());
signedPreKey.setId(id);
signedPreKey.setContent(ecPublicKey);
final var signedPreKeySignature = this.addExtension(new SignedPreKeySignature());
signedPreKeySignature.setContent(signature);
}
public void setPreKeys(final List<PreKeyRecord> preKeyRecords) {
public void addPreKeys(final List<PreKeyRecord> preKeyRecords) {
final var preKeys = this.addExtension(new PreKeys());
for (final PreKeyRecord preKeyRecord : preKeyRecords) {
final var preKey = preKeys.addExtension(new PreKey());

2
app/src/main/java/im/conversations/android/xmpp/model/axolotl/IV.java
View file

@ -4,7 +4,7 @@ import im.conversations.android.annotation.XmlElement;
import im.conversations.android.xmpp.model.ByteContent;
import im.conversations.android.xmpp.model.Extension;
@XmlElement
@XmlElement(name = "iv")
public class IV extends Extension implements ByteContent {
public IV() {

2
app/src/main/java/im/conversations/android/xmpp/model/axolotl/PreKey.java
View file

@ -16,6 +16,6 @@ public class PreKey extends Extension implements ECPublicKeyContent {
}
public void setId(int id) {
this.setAttribute("id", id);
this.setAttribute("preKeyId", id);
}
}

4
app/src/main/java/im/conversations/android/xmpp/model/axolotl/SignedPreKey.java
View file

@ -14,4 +14,8 @@ public class SignedPreKey extends Extension implements ECPublicKeyContent {
public int getId() {
return Ints.saturatedCast(this.getLongAttribute("signedPreKeyId"));
}
public void setId(final int id) {
this.setAttribute("signedPreKeyId", id);
}
}

2
app/src/main/java/im/conversations/android/xmpp/model/state/Active.java
View file

@ -5,7 +5,7 @@ import im.conversations.android.annotation.XmlElement;
@XmlElement
public class Active extends ChatStateNotification {
protected Active() {
public Active() {
super(Active.class);
}
}

2
app/src/main/java/im/conversations/android/xmpp/model/state/Composing.java
View file

@ -5,7 +5,7 @@ import im.conversations.android.annotation.XmlElement;
@XmlElement
public class Composing extends ChatStateNotification {
protected Composing() {
public Composing() {
super(Composing.class);
}
}

2
app/src/main/java/im/conversations/android/xmpp/model/state/Gone.java
View file

@ -5,7 +5,7 @@ import im.conversations.android.annotation.XmlElement;
@XmlElement
public class Gone extends ChatStateNotification {
protected Gone() {
public Gone() {
super(Gone.class);
}
}

2
app/src/main/java/im/conversations/android/xmpp/model/state/Inactive.java
View file

@ -5,7 +5,7 @@ import im.conversations.android.annotation.XmlElement;
@XmlElement
public class Inactive extends ChatStateNotification {
protected Inactive() {
public Inactive() {
super(Inactive.class);
}
}

7
app/src/main/java/im/conversations/android/xmpp/processor/MessageProcessor.java
View file

@ -6,6 +6,7 @@ import im.conversations.android.transformer.TransformationFactory;
import im.conversations.android.transformer.Transformer;
import im.conversations.android.xmpp.XmppConnection;
import im.conversations.android.xmpp.manager.ArchiveManager;
import im.conversations.android.xmpp.manager.AxolotlManager;
import im.conversations.android.xmpp.manager.CarbonsManager;
import im.conversations.android.xmpp.manager.ChatStateManager;
import im.conversations.android.xmpp.manager.JingleConnectionManager;
@ -83,7 +84,9 @@ public class MessageProcessor extends XmppConnection.Delegate implements Consume
final boolean sendReceipts;
if (transformation.isAnythingToTransform()) {
final var database = ConversationsDatabase.getInstance(context);
final var transformer = new Transformer(database, getAccount());
final var axolotlService =
connection.getManager(AxolotlManager.class).getAxolotlService();
final var transformer = new Transformer(getAccount(), database, axolotlService);
sendReceipts = transformer.transform(transformation);
} else {
sendReceipts = true;
@ -96,8 +99,6 @@ public class MessageProcessor extends XmppConnection.Delegate implements Consume
if (chatState != null) {
getManager(ChatStateManager.class).handle(from, chatState);
}
// TODO pass JMI to JingleManager
}
private boolean isRoot() {