Move to Commons Base

[lgpl/argeo-commons.git] / basic / runtime / org.argeo.basic.nodeps / src / main / java / org / argeo / util / security / DigestUtils.java

diff --git a/basic/runtime/org.argeo.basic.nodeps/src/main/java/org/argeo/util/security/DigestUtils.java b/basic/runtime/org.argeo.basic.nodeps/src/main/java/org/argeo/util/security/DigestUtils.java
deleted file mode 100644 (file)
index 0d8956d..0000000
--- a/basic/runtime/org.argeo.basic.nodeps/src/main/java/org/argeo/util/security/DigestUtils.java
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * Copyright (C) 2007-2012 Mathieu Baudier
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.argeo.util.security;
-
-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.argeo.ArgeoException;
-import org.argeo.StreamUtils;
-
-/** Utilities around cryptographic digests */
-public class DigestUtils {
-       private static Boolean debug = true;
-       // TODO: make it writable
-       private final static Integer byteBufferCapacity = 100 * 1024;// 100 KB
-
-       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 = StreamUtils.encodeHexString(checksum);
-                       return res;
-               } catch (Exception e) {
-                       throw new ArgeoException("Cannot digest with algorithm "
-                                       + algorithm, e);
-               } finally {
-                       StreamUtils.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 ArgeoException("Cannot digest " + file
-                                       + " with algorithm " + algorithm, e);
-               } finally {
-                       StreamUtils.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 = StreamUtils.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 ArgeoException("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));
-               }
-       }
-
-}