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fix UUIDv4 calculation

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Daniel Gultsch 2023-09-08 14:19:18 +02:00
parent 11e6cb9693
commit c6501a3ad4
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1 changed files with 19 additions and 14 deletions
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27
src/main/java/eu/siacs/conversations/utils/AccountUtils.java
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@ -6,6 +6,10 @@ import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import com.google.common.primitives.Bytes;
import com.google.common.primitives.Longs;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
@ -24,7 +28,6 @@ public class AccountUtils {
MANAGE_ACCOUNT_ACTIVITY = getManageAccountActivityClass();
}
public static boolean hasEnabledAccounts(final XmppConnectionService service) {
final List<Account> accounts = service.getAccounts();
for (Account account : accounts) {
@ -42,19 +45,21 @@ public class AccountUtils {
} catch (final IllegalArgumentException e) {
return account.getUuid();
}
final UUID publicDeviceId = getUuid(uuid.getLeastSignificantBits(), uuid.getLeastSignificantBits());
return publicDeviceId.toString();
}
protected static UUID getUuid(final long msb, final long lsb) {
final long msb0 = (msb & 0xffffffffffff0fffL) | 4; // set version
final long lsb0 = (lsb & 0x3fffffffffffffffL) | 0x8000000000000000L; // set variant
return new UUID(msb0, lsb0);
final byte[] bytes =
Bytes.concat(
Longs.toByteArray(uuid.getLeastSignificantBits()),
Longs.toByteArray(uuid.getLeastSignificantBits()));
bytes[6] &= 0x0f; /* clear version */
bytes[6] |= 0x40; /* set to version 4 */
bytes[8] &= 0x3f; /* clear variant */
bytes[8] |= 0x80; /* set to IETF variant */
final ByteBuffer byteBuffer = ByteBuffer.wrap(bytes);
return new UUID(byteBuffer.getLong(), byteBuffer.getLong()).toString();
}
public static List<String> getEnabledAccounts(final XmppConnectionService service) {
ArrayList<String> accounts = new ArrayList<>();
for (Account account : service.getAccounts()) {
final ArrayList<String> accounts = new ArrayList<>();
for (final Account account : service.getAccounts()) {
if (account.getStatus() != Account.State.DISABLED) {
if (Config.DOMAIN_LOCK != null) {
accounts.add(account.getJid().getEscapedLocal());