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73 lines
2.0 KiB
Java
73 lines
2.0 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2024, Arnaud Roques
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*
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* Project Info: https://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* https://plantuml.com/patreon (only 1$ per month!)
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* https://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml.eggs;
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import static java.nio.charset.StandardCharsets.UTF_8;
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import java.io.UnsupportedEncodingException;
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public class SentenceDecoder {
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// ::remove file when CORE
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private final String secret;
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public SentenceDecoder(String sentence1, byte[] crypted) throws UnsupportedEncodingException {
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final byte[] key = EggUtils.fromSecretSentence(sentence1).toByteArray();
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final byte[] sen2 = EggUtils.xor(crypted, key);
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this.secret = new String(sen2, UTF_8);
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}
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public boolean isOk() {
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for (char c : secret.toCharArray()) {
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if ((int) c > 256) {
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return false;
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}
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if (Character.isDefined(c) == false) {
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return false;
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}
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if (Character.isISOControl(c)) {
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return false;
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}
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}
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return true;
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}
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public String getSecret() {
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return secret;
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}
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}
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