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72 lines
2.4 KiB
Java
72 lines
2.4 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, Arnaud Roques
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*
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* Project Info: http://plantuml.sourceforge.net
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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 Lesser 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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* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
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* in the United States and other countries.]
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*
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* Original Author: Arnaud Roques
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*
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* Revision $Revision: 3883 $
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*
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*/
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package net.sourceforge.plantuml;
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import java.io.UnsupportedEncodingException;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import net.sourceforge.plantuml.code.AsciiEncoder;
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public class SignatureUtils {
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public static String getSignature(String s) {
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try {
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final AsciiEncoder coder = new AsciiEncoder();
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final MessageDigest msgDigest = MessageDigest.getInstance("MD5");
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msgDigest.update(s.getBytes("UTF-8"));
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final byte[] digest = msgDigest.digest();
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return coder.encode(digest);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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throw new IllegalStateException();
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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throw new IllegalStateException();
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}
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}
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public static String getSignatureWithoutImgSrc(String s) {
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return getSignature(purge(s));
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}
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public static String purge(String s) {
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final String regex = "(?i)\\<img\\s+src=\"(?:[^\"]+[/\\\\])?([^/\\\\\\d.]+)\\d*(\\.\\w+)\"/\\>";
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s = s.replaceAll(regex, "<img src=\"$1$2\"/>");
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final String regex2 = "(?i)image=\"(?:[^\"]+[/\\\\])?([^/\\\\\\d.]+)\\d*(\\.\\w+)\"";
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s = s.replaceAll(regex2, "image=\"$1$2\"");
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return s;
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}
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}
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