mirror of
https://codeberg.org/Mercury-IM/Smack
synced 2024-09-20 23:19:33 +02:00
Paul Schaub
6e57ea0873
Instead of passing the passphrase back to the user via a DisplayBackupCodeCallback, we directly return the passphrase which is now represented by a class. Also we now allow the user to provide the passphrase.
65 lines
2.1 KiB
Java
65 lines
2.1 KiB
Java
/**
|
|
*
|
|
* Copyright 2020 Paul Schaub.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
package org.jivesoftware.smackx.ox;
|
|
|
|
import static org.jivesoftware.smack.util.StringUtils.UNAMBIGUOUS_NUMBERS_AND_LETTERS_STRING;
|
|
|
|
import java.util.regex.Pattern;
|
|
|
|
/**
|
|
* Represents a secret key backup passphrase whose format is described in XEP-0373 §5.3.
|
|
*
|
|
* @see <a href="https://xmpp.org/extensions/xep-0373.html#backup-encryption">
|
|
* XEP-0373 §5.4 Encrypting the Secret Key Backup</a>
|
|
*/
|
|
public class OpenPgpSecretKeyBackupPassphrase implements CharSequence {
|
|
|
|
private static final Pattern PASSPHRASE_PATTERN = Pattern.compile(
|
|
"^([" + UNAMBIGUOUS_NUMBERS_AND_LETTERS_STRING + "]{4}-){5}" +
|
|
"[" + UNAMBIGUOUS_NUMBERS_AND_LETTERS_STRING + "]{4}$");
|
|
|
|
private final String passphrase;
|
|
|
|
public OpenPgpSecretKeyBackupPassphrase(String passphrase) {
|
|
if (!PASSPHRASE_PATTERN.matcher(passphrase).matches()) {
|
|
throw new IllegalArgumentException("Passphrase must be 24 upper case letters and numbers from the english " +
|
|
"alphabet without 'O' and '0', divided into blocks of 4 and separated with dashes ('-').");
|
|
}
|
|
this.passphrase = passphrase;
|
|
}
|
|
|
|
@Override
|
|
public int length() {
|
|
return passphrase.length();
|
|
}
|
|
|
|
@Override
|
|
public char charAt(int i) {
|
|
return passphrase.charAt(i);
|
|
}
|
|
|
|
@Override
|
|
public CharSequence subSequence(int i, int i1) {
|
|
return passphrase.subSequence(i, i1);
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
return passphrase;
|
|
}
|
|
}
|