/*
- * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
+ * Copyright (C) 2007-2012 Argeo GmbH
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-
package org.argeo.slc.core.deploy;
import java.io.File;
-import java.io.FileInputStream;
import java.io.IOException;
-import java.io.InputStream;
-import java.nio.ByteBuffer;
-import java.nio.channels.FileChannel;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import org.apache.commons.codec.binary.Hex;
-import org.apache.commons.io.IOUtils;
import org.argeo.slc.SlcException;
+import org.argeo.util.security.DigestUtils;
import org.springframework.core.io.Resource;
-public class DigestCheck {
- private static Boolean debug = true;
- // TODO: make it writable
- private final static Integer byteBufferCapacity = 100 * 1024;// 100 KB
-
+/** Add Spring capabilities to {@link DigestUtils} */
+public class DigestCheck extends DigestUtils {
public static String digest(String algorithm, Resource resource) {
try {
File file = resource.getFile();
}
}
}
-
- public static String digest(String algorithm, InputStream in) {
- try {
- MessageDigest digest = MessageDigest.getInstance(algorithm);
- // ReadableByteChannel channel = Channels.newChannel(in);
- // ByteBuffer bb = ByteBuffer.allocateDirect(byteBufferCapacity);
- // while (channel.read(bb) > 0)
- // digest.update(bb);
- byte[] buffer = new byte[byteBufferCapacity];
- int read = 0;
- while ((read = in.read(buffer)) > 0) {
- digest.update(buffer, 0, read);
- }
-
- byte[] checksum = digest.digest();
- String res = Hex.encodeHexString(checksum);
- return res;
- } catch (Exception e) {
- throw new SlcException("Cannot digest with algorithm " + algorithm,
- e);
- } finally {
- IOUtils.closeQuietly(in);
- }
- }
-
- public static String digest(String algorithm, File file) {
- FileInputStream fis = null;
- FileChannel fc = null;
- try {
- fis = new FileInputStream(file);
- fc = fis.getChannel();
-
- // Get the file's size and then map it into memory
- int sz = (int) fc.size();
- ByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, sz);
- return digest(algorithm, bb);
- } catch (IOException e) {
- throw new SlcException("Cannot digest " + file + " with algorithm "
- + algorithm, e);
- } finally {
- IOUtils.closeQuietly(fis);
- if (fc.isOpen())
- try {
- fc.close();
- } catch (IOException e) {
- // silent
- }
- }
- }
-
- protected static String digest(String algorithm, ByteBuffer bb) {
- long begin = System.currentTimeMillis();
- try {
- MessageDigest digest = MessageDigest.getInstance(algorithm);
- digest.update(bb);
- byte[] checksum = digest.digest();
- String res = Hex.encodeHexString(checksum);
- long end = System.currentTimeMillis();
- if (debug)
- System.out.println((end - begin) + " ms / "
- + ((end - begin) / 1000) + " s");
- return res;
- } catch (NoSuchAlgorithmException e) {
- throw new SlcException("Cannot digest with algorithm " + algorithm,
- e);
- }
- }
-
- public static void main(String[] args) {
- File file;
- if (args.length > 0)
- file = new File(args[0]);
- else {
- System.err.println("Usage: <file> [<algorithm>]"
- + " (see http://java.sun.com/j2se/1.5.0/"
- + "docs/guide/security/CryptoSpec.html#AppA)");
- return;
- }
-
- if (args.length > 1) {
- String algorithm = args[1];
- System.out.println(digest(algorithm, file));
- } else {
- String algorithm = "MD5";
- System.out.println(algorithm + ": " + digest(algorithm, file));
- algorithm = "SHA";
- System.out.println(algorithm + ": " + digest(algorithm, file));
- algorithm = "SHA-256";
- System.out.println(algorithm + ": " + digest(algorithm, file));
- algorithm = "SHA-512";
- System.out.println(algorithm + ": " + digest(algorithm, file));
- }
- }
-
}