mirror of https://github.com/octoleo/plantuml.git
195 lines
6.1 KiB
Java
195 lines
6.1 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 2009-2017, Arnaud Roques
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*
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* Project Info: http://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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* http://plantuml.com/patreon (only 1$ per month!)
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* http://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;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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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 java.security.spec.InvalidKeySpecException;
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import javax.crypto.SecretKey;
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import javax.crypto.SecretKeyFactory;
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import javax.crypto.spec.PBEKeySpec;
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import net.sourceforge.plantuml.code.AsciiEncoder;
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public class SignatureUtils {
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public static byte[] salting(String pass, byte[] salt) throws NoSuchAlgorithmException, InvalidKeySpecException,
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UnsupportedEncodingException {
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final int iterations = 10000;
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final int keyLength = 512;
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final SecretKeyFactory skf = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
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final PBEKeySpec spec = new PBEKeySpec(pass.toCharArray(), salt, iterations, keyLength);
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final SecretKey key = skf.generateSecret(spec);
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return SignatureUtils.getSHA512raw(key.getEncoded());
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}
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public static String getSignature(String s) {
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try {
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final byte[] digest = getMD5raw(s);
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return toString(digest);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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}
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}
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public static String toString(byte data[]) {
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final AsciiEncoder coder = new AsciiEncoder();
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return coder.encode(data);
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}
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public static String toHexString(byte data[]) {
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final StringBuilder sb = new StringBuilder(data.length * 2);
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for (byte b : data) {
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sb.append(String.format("%02x", b));
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}
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return sb.toString();
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}
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public static String getMD5Hex(String s) {
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try {
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final byte[] digest = getMD5raw(s);
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assert digest.length == 16;
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return toHexString(digest);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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}
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}
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public static String getSHA512Hex(String s) {
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try {
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final byte[] digest = getSHA512raw(s);
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assert digest.length == 64;
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return toHexString(digest);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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}
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}
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public static byte[] getMD5raw(String s) throws NoSuchAlgorithmException, UnsupportedEncodingException {
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final MessageDigest msgDigest = MessageDigest.getInstance("MD5");
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msgDigest.update(s.getBytes("UTF-8"));
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return msgDigest.digest();
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}
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public static byte[] getSHA512raw(String s) throws NoSuchAlgorithmException, UnsupportedEncodingException {
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return getSHA512raw(s.getBytes("UTF-8"));
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}
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public static byte[] getSHA512raw(byte data[]) throws NoSuchAlgorithmException, UnsupportedEncodingException {
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final MessageDigest msgDigest = MessageDigest.getInstance("SHA-512");
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msgDigest.update(data);
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return msgDigest.digest();
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}
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public static String getSignatureSha512(File f) throws IOException {
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final InputStream is = new FileInputStream(f);
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try {
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return getSignatureSha512(is);
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} finally {
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is.close();
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}
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}
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public static String getSignatureSha512(InputStream is) throws IOException {
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try {
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final MessageDigest msgDigest = MessageDigest.getInstance("SHA-512");
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int read = 0;
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while ((read = is.read()) != -1) {
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msgDigest.update((byte) read);
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}
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final byte[] digest = msgDigest.digest();
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return toString(digest);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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}
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}
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public static String getSignatureWithoutImgSrc(String s) {
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s = getSignature(purge(s));
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return 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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public static String getSignature(File f) throws IOException {
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try {
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final MessageDigest msgDigest = MessageDigest.getInstance("MD5");
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final FileInputStream is = new FileInputStream(f);
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int read = -1;
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while ((read = is.read()) != -1) {
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msgDigest.update((byte) read);
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}
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is.close();
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final byte[] digest = msgDigest.digest();
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return toString(digest);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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throw new UnsupportedOperationException(e);
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}
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}
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}
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