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Save IdentityKeys in database

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This commit is contained in:
Andreas Straub 2015-06-29 13:53:39 +02:00
parent 9e07fc5651
commit 74026b742b
2 changed files with 108 additions and 47 deletions
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64
src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
View file

@ -68,12 +68,14 @@ public class AxolotlService {
public static final String PREKEY_TABLENAME = "prekeys";
public static final String SIGNED_PREKEY_TABLENAME = "signed_prekeys";
public static final String SESSION_TABLENAME = "sessions";
public static final String IDENTITIES_TABLENAME = "identities";
public static final String ACCOUNT = "account";
public static final String DEVICE_ID = "device_id";
public static final String ID = "id";
public static final String KEY = "key";
public static final String NAME = "name";
public static final String TRUSTED = "trusted";
public static final String OWN = "ownkey";
public static final String JSONKEY_IDENTITY_KEY_PAIR = "axolotl_key";
public static final String JSONKEY_REGISTRATION_ID = "axolotl_reg_id";
@ -82,7 +84,7 @@ public class AxolotlService {
private final Account account;
private final XmppConnectionService mXmppConnectionService;
private final IdentityKeyPair identityKeyPair;
private IdentityKeyPair identityKeyPair;
private final int localRegistrationId;
private int currentPreKeyId = 0;
@ -104,10 +106,9 @@ public class AxolotlService {
public SQLiteAxolotlStore(Account account, XmppConnectionService service) {
this.account = account;
this.mXmppConnectionService = service;
this.identityKeyPair = loadIdentityKeyPair();
this.localRegistrationId = loadRegistrationId();
this.currentPreKeyId = loadCurrentPreKeyId();
for( SignedPreKeyRecord record:loadSignedPreKeys()) {
for (SignedPreKeyRecord record : loadSignedPreKeys()) {
Log.d(Config.LOGTAG, "Got Axolotl signed prekey record:" + record.getId());
}
}
@ -121,26 +122,17 @@ public class AxolotlService {
// --------------------------------------
private IdentityKeyPair loadIdentityKeyPair() {
String serializedKey = this.account.getKey(JSONKEY_IDENTITY_KEY_PAIR);
IdentityKeyPair ownKey;
if( serializedKey != null ) {
try {
ownKey = new IdentityKeyPair(Base64.decode(serializedKey,Base64.DEFAULT));
String ownName = account.getJid().toBareJid().toString();
IdentityKeyPair ownKey = mXmppConnectionService.databaseBackend.loadOwnIdentityKeyPair(account,
ownName);
if (ownKey != null) {
return ownKey;
} catch (InvalidKeyException e) {
Log.d(Config.LOGTAG, "Invalid key stored for account " + account.getJid() + ": " + e.getMessage());
// return null;
}
} //else {
Log.d(Config.LOGTAG, "Could not retrieve axolotl key for account " + account.getJid());
ownKey = generateIdentityKeyPair();
boolean success = this.account.setKey(JSONKEY_IDENTITY_KEY_PAIR, Base64.encodeToString(ownKey.serialize(), Base64.DEFAULT));
if(success) {
mXmppConnectionService.databaseBackend.updateAccount(account);
} else {
Log.e(Config.LOGTAG, "Failed to write new key to the database!");
Log.d(Config.LOGTAG, "Could not retrieve axolotl key for account " + ownName);
ownKey = generateIdentityKeyPair();
mXmppConnectionService.databaseBackend.storeOwnIdentityKeyPair(account, ownName, ownKey);
}
//}
return ownKey;
}
@ -152,8 +144,8 @@ public class AxolotlService {
} else {
Log.d(Config.LOGTAG, "Could not retrieve axolotl registration id for account " + account.getJid());
reg_id = generateRegistrationId();
boolean success = this.account.setKey(JSONKEY_REGISTRATION_ID,""+reg_id);
if(success) {
boolean success = this.account.setKey(JSONKEY_REGISTRATION_ID, Integer.toString(reg_id));
if (success) {
mXmppConnectionService.databaseBackend.updateAccount(account);
} else {
Log.e(Config.LOGTAG, "Failed to write new key to the database!");
@ -182,6 +174,9 @@ public class AxolotlService {
*/
@Override
public IdentityKeyPair getIdentityKeyPair() {
if(identityKeyPair == null) {
identityKeyPair = loadIdentityKeyPair();
}
return identityKeyPair;
}
@ -208,16 +203,8 @@ public class AxolotlService {
*/
@Override
public void saveIdentity(String name, IdentityKey identityKey) {
try {
Jid contactJid = Jid.fromString(name);
Conversation conversation = this.mXmppConnectionService.find(this.account, contactJid);
if (conversation != null) {
conversation.getContact().addAxolotlIdentityKey(identityKey);
mXmppConnectionService.updateConversationUi();
mXmppConnectionService.syncRosterToDisk(conversation.getAccount());
}
} catch (final InvalidJidException e) {
Log.e(Config.LOGTAG, "Failed to save identityKey for contact name " + name + ": " + e.toString());
if(!mXmppConnectionService.databaseBackend.loadIdentityKeys(account, name).contains(identityKey)) {
mXmppConnectionService.databaseBackend.storeIdentityKey(account, name, identityKey);
}
}
@ -237,19 +224,8 @@ public class AxolotlService {
*/
@Override
public boolean isTrustedIdentity(String name, IdentityKey identityKey) {
try {
Jid contactJid = Jid.fromString(name);
Conversation conversation = this.mXmppConnectionService.find(this.account, contactJid);
if (conversation != null) {
List<IdentityKey> trustedKeys = conversation.getContact().getAxolotlIdentityKeys();
Set<IdentityKey> trustedKeys = mXmppConnectionService.databaseBackend.loadIdentityKeys(account, name);
return trustedKeys.isEmpty() || trustedKeys.contains(identityKey);
} else {
return false;
}
} catch (final InvalidJidException e) {
Log.e(Config.LOGTAG, "Failed to save identityKey for contact name" + name + ": " + e.toString());
return false;
}
}
// --------------------------------------

85
src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java
View file

@ -10,13 +10,18 @@ import android.util.Base64;
import android.util.Log;
import org.whispersystems.libaxolotl.AxolotlAddress;
import org.whispersystems.libaxolotl.IdentityKey;
import org.whispersystems.libaxolotl.IdentityKeyPair;
import org.whispersystems.libaxolotl.InvalidKeyException;
import org.whispersystems.libaxolotl.state.PreKeyRecord;
import org.whispersystems.libaxolotl.state.SessionRecord;
import org.whispersystems.libaxolotl.state.SignedPreKeyRecord;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
import eu.siacs.conversations.Config;
@ -87,6 +92,16 @@ public class DatabaseBackend extends SQLiteOpenHelper {
+ ") ON CONFLICT REPLACE"
+");";
private static String CREATE_IDENTITIES_STATEMENT = "CREATE TABLE "
+ AxolotlService.SQLiteAxolotlStore.IDENTITIES_TABLENAME + "("
+ AxolotlService.SQLiteAxolotlStore.ACCOUNT + " TEXT, "
+ AxolotlService.SQLiteAxolotlStore.NAME + " TEXT, "
+ AxolotlService.SQLiteAxolotlStore.OWN + " INTEGER, "
+ AxolotlService.SQLiteAxolotlStore.KEY + " TEXT, FOREIGN KEY("
+ AxolotlService.SQLiteAxolotlStore.ACCOUNT
+ ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID + ") ON DELETE CASCADE "
+");";
private DatabaseBackend(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@ -126,6 +141,7 @@ public class DatabaseBackend extends SQLiteOpenHelper {
db.execSQL(CREATE_SESSIONS_STATEMENT);
db.execSQL(CREATE_PREKEYS_STATEMENT);
db.execSQL(CREATE_SIGNED_PREKEYS_STATEMENT);
db.execSQL(CREATE_IDENTITIES_STATEMENT);
}
@Override
@ -273,6 +289,8 @@ public class DatabaseBackend extends SQLiteOpenHelper {
db.execSQL(CREATE_PREKEYS_STATEMENT);
db.execSQL("DROP TABLE IF EXISTS " + AxolotlService.SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME);
db.execSQL(CREATE_SIGNED_PREKEYS_STATEMENT);
db.execSQL("DROP TABLE IF EXISTS " + AxolotlService.SQLiteAxolotlStore.IDENTITIES_TABLENAME);
db.execSQL(CREATE_IDENTITIES_STATEMENT);
}
}
@ -783,4 +801,71 @@ public class DatabaseBackend extends SQLiteOpenHelper {
+ AxolotlService.SQLiteAxolotlStore.ID + "=?",
args);
}
private Cursor getIdentityKeyCursor(Account account, String name, boolean own) {
final SQLiteDatabase db = this.getReadableDatabase();
String[] columns = {AxolotlService.SQLiteAxolotlStore.KEY};
String[] selectionArgs = {account.getUuid(),
name,
own?"1":"0"};
Cursor cursor = db.query(AxolotlService.SQLiteAxolotlStore.IDENTITIES_TABLENAME,
columns,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + " = ? AND "
+ AxolotlService.SQLiteAxolotlStore.NAME + " = ? AND "
+ AxolotlService.SQLiteAxolotlStore.OWN + " = ? ",
selectionArgs,
null, null, null);
return cursor;
}
public IdentityKeyPair loadOwnIdentityKeyPair(Account account, String name) {
IdentityKeyPair identityKeyPair = null;
Cursor cursor = getIdentityKeyCursor(account, name, true);
if(cursor.getCount() != 0) {
cursor.moveToFirst();
try {
identityKeyPair = new IdentityKeyPair(Base64.decode(cursor.getString(cursor.getColumnIndex(AxolotlService.SQLiteAxolotlStore.KEY)),Base64.DEFAULT));
} catch (InvalidKeyException e) {
Log.d(Config.LOGTAG, "Encountered invalid IdentityKey in database for account" + account.getJid().toBareJid() + ", address: " + name);
}
}
cursor.close();
return identityKeyPair;
}
public Set<IdentityKey> loadIdentityKeys(Account account, String name) {
Set<IdentityKey> identityKeys = new HashSet<>();
Cursor cursor = getIdentityKeyCursor(account, name, false);
while(cursor.moveToNext()) {
try {
identityKeys.add(new IdentityKey(Base64.decode(cursor.getString(cursor.getColumnIndex(AxolotlService.SQLiteAxolotlStore.KEY)),Base64.DEFAULT),0));
} catch (InvalidKeyException e) {
Log.d(Config.LOGTAG, "Encountered invalid IdentityKey in database for account"+account.getJid().toBareJid()+", address: "+name);
}
}
cursor.close();
return identityKeys;
}
private void storeIdentityKey(Account account, String name, boolean own, String base64Serialized) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(AxolotlService.SQLiteAxolotlStore.ACCOUNT, account.getUuid());
values.put(AxolotlService.SQLiteAxolotlStore.NAME, name);
values.put(AxolotlService.SQLiteAxolotlStore.OWN, own?1:0);
values.put(AxolotlService.SQLiteAxolotlStore.KEY, base64Serialized);
db.insert(AxolotlService.SQLiteAxolotlStore.IDENTITIES_TABLENAME, null, values);
}
public void storeIdentityKey(Account account, String name, IdentityKey identityKey) {
storeIdentityKey(account, name, false, Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT));
}
public void storeOwnIdentityKeyPair(Account account, String name, IdentityKeyPair identityKeyPair) {
storeIdentityKey(account, name, true, Base64.encodeToString(identityKeyPair.serialize(),Base64.DEFAULT));
}
}