RandomStringStanzaIdSource.java
- /**
- *
- * Copyright 2019 Florian Schmaus
- *
- * 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.smack.packet.id;
- import org.jivesoftware.smack.util.StringUtils;
- public final class RandomStringStanzaIdSource {
- public static class Factory implements StanzaIdSourceFactory {
- private static final int REQUIRED_MIN_LENGTH = 10;
- private final int length;
- private final boolean verySecure;
- public static final Factory VERY_SECURE = new Factory(10, true);
- public static final Factory MEDIUM_SECURE = new Factory(10, false);
- public Factory(int length, boolean verySecure) {
- if (length < REQUIRED_MIN_LENGTH) {
- throw new IllegalArgumentException(
- "Insufficient length " + length + ", must be at least " + REQUIRED_MIN_LENGTH);
- }
- this.length = length;
- this.verySecure = verySecure;
- }
- @Override
- public StanzaIdSource constructStanzaIdSource() {
- StanzaIdSource stanzaIdSource;
- if (verySecure) {
- stanzaIdSource = () -> StringUtils.randomString(length);
- } else {
- stanzaIdSource = () -> StringUtils.insecureRandomString(length);
- }
- return stanzaIdSource;
- }
- }
- }