55 lines
1.8 KiB
Java
55 lines
1.8 KiB
Java
/**
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*
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* Copyright 2019 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack.packet.id;
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import org.jivesoftware.smack.util.StringUtils;
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public final class RandomStringStanzaIdSource {
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public static class Factory implements StanzaIdSourceFactory {
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private static final int REQUIRED_MIN_LENGTH = 10;
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private final int length;
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private final boolean verySecure;
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public static final Factory VERY_SECURE = new Factory(10, true);
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public static final Factory MEDIUM_SECURE = new Factory(10, false);
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public Factory(int length, boolean verySecure) {
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if (length < REQUIRED_MIN_LENGTH) {
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throw new IllegalArgumentException(
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"Insufficient length " + length + ", must be at least " + REQUIRED_MIN_LENGTH);
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}
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this.length = length;
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this.verySecure = verySecure;
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}
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@Override
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public StanzaIdSource constructStanzaIdSource() {
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StanzaIdSource stanzaIdSource;
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if (verySecure) {
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stanzaIdSource = () -> StringUtils.randomString(length);
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} else {
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stanzaIdSource = () -> StringUtils.insecureRandomString(length);
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}
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return stanzaIdSource;
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}
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}
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}
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