| Clover coverage report - DrJava Test Coverage (drjava-20120304-r5456) |
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| MD5ChecksumProperties.java | 0% | 0% | 0% | 0% |
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| 1 | /*BEGIN_COPYRIGHT_BLOCK | |
| 2 | * | |
| 3 | * Copyright (c) 2001-2010, JavaPLT group at Rice University (drjava@rice.edu) | |
| 4 | * All rights reserved. | |
| 5 | * | |
| 6 | * Redistribution and use in source and binary forms, with or without | |
| 7 | * modification, are permitted provided that the following conditions are met: | |
| 8 | * * Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * * Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * * Neither the names of DrJava, the JavaPLT group, Rice University, nor the | |
| 14 | * names of its contributors may be used to endorse or promote products | |
| 15 | * derived from this software without specific prior written permission. | |
| 16 | * | |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 18 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 19 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 20 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
| 21 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 22 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 23 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 24 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 25 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 26 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| 27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 28 | * | |
| 29 | * This software is Open Source Initiative approved Open Source Software. | |
| 30 | * Open Source Initative Approved is a trademark of the Open Source Initiative. | |
| 31 | * | |
| 32 | * This file is part of DrJava. Download the current version of this project | |
| 33 | * from http://www.drjava.org/ or http://sourceforge.net/projects/drjava/ | |
| 34 | * | |
| 35 | * END_COPYRIGHT_BLOCK*/ | |
| 36 | ||
| 37 | package edu.rice.cs.util; | |
| 38 | ||
| 39 | import java.io.*; | |
| 40 | import java.util.*; | |
| 41 | import java.util.jar.*; | |
| 42 | import java.security.*; | |
| 43 | ||
| 44 | /** Create a property file with MD5 checksums | |
| 45 | * @version $Id: MD5ChecksumProperties.java 5236 2010-04-27 01:43:36Z mgricken $ | |
| 46 | */ | |
| 47 | public class MD5ChecksumProperties extends Properties { | |
| 48 | public static final int BUFFER_SIZE = 10*1024; | |
| 49 | ||
| 50 | 0 | public MD5ChecksumProperties() { super(); } |
| 51 | 0 | public MD5ChecksumProperties(Properties p) { super(p); } |
| 52 | ||
| 53 | /** | |
| 54 | * Return the MD5 checksum for the data in the stream, while copying the data | |
| 55 | * into the output stream. The output stream is not closed. | |
| 56 | * @param is input stream | |
| 57 | * @param os output stream (or null if no copying desired) | |
| 58 | * @return MD5 checksum | |
| 59 | */ | |
| 60 | 0 | public static byte[] getMD5(InputStream is, OutputStream os) throws IOException { |
| 61 | 0 | try { |
| 62 | 0 | MessageDigest digest = MessageDigest.getInstance("MD5"); |
| 63 | 0 | DigestInputStream dis = new DigestInputStream(new BufferedInputStream(is), digest); |
| 64 | 0 | BufferedOutputStream bos = null; |
| 65 | 0 | if (os!=null) { |
| 66 | 0 | bos = new BufferedOutputStream(os); |
| 67 | } | |
| 68 | 0 | byte[] buf = new byte[BUFFER_SIZE]; |
| 69 | 0 | int bytesRead = 0; |
| 70 | 0 | while((bytesRead=dis.read(buf, 0, BUFFER_SIZE))!=-1) { |
| 71 | 0 | if (os!=null) { bos.write(buf, 0, bytesRead); } |
| 72 | } | |
| 73 | 0 | if (os!=null) { bos.flush(); } |
| 74 | 0 | dis.close(); |
| 75 | 0 | is.close(); |
| 76 | 0 | return digest.digest(); |
| 77 | } | |
| 78 | catch(NoSuchAlgorithmException nsae) { | |
| 79 | 0 | throw new UnexpectedException(nsae,"MD5 algorithm not available"); |
| 80 | } | |
| 81 | } | |
| 82 | ||
| 83 | /** | |
| 84 | * Return the MD5 checksum for the data in the stream | |
| 85 | * @param is input stream | |
| 86 | * @return MD5 checksum | |
| 87 | */ | |
| 88 | 0 | public static byte[] getMD5(InputStream is) throws IOException { |
| 89 | 0 | return getMD5(is, null); |
| 90 | } | |
| 91 | ||
| 92 | /** | |
| 93 | * Return the MD5 checksum as string for the data in the stream, while | |
| 94 | * copying the data into the output stream. The output stream is not closed. | |
| 95 | * @param is input stream | |
| 96 | * @param os output stream (or null if no copying desired) | |
| 97 | * @return MD5 checksum string | |
| 98 | */ | |
| 99 | 0 | public static String getMD5String(InputStream is, OutputStream os) throws IOException { |
| 100 | 0 | byte[] messageDigest = getMD5(is,os); |
| 101 | 0 | StringBuilder hexString = new StringBuilder(); |
| 102 | 0 | for (int i=0;i<messageDigest.length;i++) { |
| 103 | 0 | String oneByte = "0"+Integer.toHexString(0xFF & messageDigest[i]); |
| 104 | 0 | hexString.append(oneByte.substring(oneByte.length()-2,oneByte.length())); |
| 105 | } | |
| 106 | 0 | return hexString.toString(); |
| 107 | } | |
| 108 | ||
| 109 | /** | |
| 110 | * Return the MD5 checksum as string for the data in the stream. | |
| 111 | * @param is input stream | |
| 112 | * @return MD5 checksum string | |
| 113 | */ | |
| 114 | 0 | public static String getMD5String(InputStream is) throws IOException { |
| 115 | 0 | return getMD5String(is, null); |
| 116 | } | |
| 117 | ||
| 118 | 0 | public static byte[] getMD5(File f) throws IOException { |
| 119 | 0 | return getMD5(new FileInputStream(f)); |
| 120 | } | |
| 121 | ||
| 122 | 0 | public static String getMD5String(File f) throws IOException { |
| 123 | 0 | return getMD5String(new FileInputStream(f)); |
| 124 | } | |
| 125 | ||
| 126 | 0 | public static byte[] getMD5(byte[] b) throws IOException { |
| 127 | 0 | return getMD5(new ByteArrayInputStream(b)); |
| 128 | } | |
| 129 | ||
| 130 | 0 | public static String getMD5String(byte[] b) throws IOException { |
| 131 | 0 | return getMD5String(new ByteArrayInputStream(b)); |
| 132 | } | |
| 133 | ||
| 134 | /** Add the MD5 checksum for the data in the input stream to the | |
| 135 | * properties, using the specified key. | |
| 136 | * @param key key to store the checksum under | |
| 137 | * @param is input stream with the data | |
| 138 | * @param os output stream to copy to (or null if not wanted) | |
| 139 | * @return false if the new MD5 checksum didn't match an existing checksum */ | |
| 140 | 0 | public boolean addMD5(String key, InputStream is, OutputStream os) throws IOException { |
| 141 | 0 | String md5 = getMD5String(is, os); |
| 142 | 0 | Object prev = setProperty(key,md5); |
| 143 | 0 | return ((prev==null) || (prev.equals(md5))); |
| 144 | } | |
| 145 | ||
| 146 | /** Add the MD5 checksum for the data in the input stream to the | |
| 147 | * properties, using the specified key. | |
| 148 | * @param key key to store the checksum under | |
| 149 | * @param is input stream with the data | |
| 150 | * @return false if the new MD5 checksum didn't match an existing checksum */ | |
| 151 | 0 | public boolean addMD5(String key, InputStream is) throws IOException { |
| 152 | 0 | return addMD5(key, is, null); |
| 153 | } | |
| 154 | ||
| 155 | /** Add the MD5 checksum for the data in the file to the | |
| 156 | * properties, using the specified key. | |
| 157 | * @param key key to store the checksum under | |
| 158 | * @param f file with the data | |
| 159 | * @param os output stream to copy to (or null if not wanted) | |
| 160 | * @return false if the new MD5 checksum didn't match an existing checksum */ | |
| 161 | 0 | public boolean addMD5(String key, File f, OutputStream os) throws IOException { |
| 162 | 0 | return addMD5(key, new FileInputStream(f), os); |
| 163 | } | |
| 164 | ||
| 165 | /** Add the MD5 checksum for the data in the file to the | |
| 166 | * properties, using the specified key. | |
| 167 | * @param key key to store the checksum under | |
| 168 | * @param f file with the data | |
| 169 | * @return false if the new MD5 checksum didn't match an existing checksum */ | |
| 170 | 0 | public boolean addMD5(String key, File f) throws IOException { |
| 171 | 0 | return addMD5(key, f, null); |
| 172 | } | |
| 173 | ||
| 174 | /** Add the MD5 checksum for the data in the byte array to the | |
| 175 | * properties, using the specified key. | |
| 176 | * @param key key to store the checksum under | |
| 177 | * @param b byte array with the data | |
| 178 | * @param os output stream to copy to (or null if not wanted) | |
| 179 | * @return false if the new MD5 checksum didn't match an existing checksum */ | |
| 180 | 0 | public boolean addMD5(String key, byte[] b, OutputStream os) throws IOException { |
| 181 | 0 | return addMD5(key, new ByteArrayInputStream(b), os); |
| 182 | } | |
| 183 | ||
| 184 | /** Add the MD5 checksum for the data in the byte array to the | |
| 185 | * properties, using the specified key. | |
| 186 | * @param key key to store the checksum under | |
| 187 | * @param b byte array with the data | |
| 188 | * @return false if the new MD5 checksum didn't match an existing checksum */ | |
| 189 | 0 | public boolean addMD5(String key, byte[] b) throws IOException { |
| 190 | 0 | return addMD5(key, b, null); |
| 191 | } | |
| 192 | ||
| 193 | /** Add the MD5 checksum for the data in the input stream to the | |
| 194 | * properties, using the name of the file as key. | |
| 195 | * @param f file with the data | |
| 196 | * @param os output stream to copy to (or null if not wanted) | |
| 197 | * @return false if the new MD5 checksum didn't match an existing checksum */ | |
| 198 | 0 | public boolean addMD5(File f, OutputStream os) throws IOException { |
| 199 | 0 | return addMD5(f.getPath().replace('\\','/'), f, os); |
| 200 | } | |
| 201 | ||
| 202 | /** Add the MD5 checksum for the data in the input stream to the | |
| 203 | * properties, using the name of the file as key. | |
| 204 | * @param f file with the data | |
| 205 | * @return false if the new MD5 checksum didn't match an existing checksum */ | |
| 206 | 0 | public boolean addMD5(File f) throws IOException { |
| 207 | 0 | return addMD5(f, null); |
| 208 | } | |
| 209 | ||
| 210 | /** Main method. Usage: | |
| 211 | * no arguments --> input file list from standard in, output properties to standard out | |
| 212 | * <file1> --> input file list from standard in, append output properties to file1 | |
| 213 | * <file1> <file2> --> input file list from file1, append output properties to file 2 | |
| 214 | */ | |
| 215 | 0 | public static void main(String[] args) throws IOException { |
| 216 | 0 | InputStream is = System.in; |
| 217 | 0 | OutputStream os = System.out; |
| 218 | 0 | Properties prevp = new Properties(); |
| 219 | ||
| 220 | 0 | if (args.length==2) { |
| 221 | 0 | File outFile = new File(args[1]); |
| 222 | 0 | if (outFile.exists()) { |
| 223 | 0 | FileInputStream pis = new FileInputStream(outFile); |
| 224 | 0 | prevp.load(pis); |
| 225 | 0 | pis.close(); |
| 226 | } | |
| 227 | 0 | is = new FileInputStream(new File(args[0])); |
| 228 | 0 | os = new FileOutputStream(outFile); |
| 229 | } | |
| 230 | 0 | else if (args.length==1) { |
| 231 | 0 | File outFile = new File(args[0]); |
| 232 | 0 | if (outFile.exists()) { |
| 233 | 0 | FileInputStream pis = new FileInputStream(outFile); |
| 234 | 0 | prevp.load(pis); |
| 235 | 0 | pis.close(); |
| 236 | } | |
| 237 | 0 | os = new FileOutputStream(outFile); |
| 238 | } | |
| 239 | ||
| 240 | 0 | BufferedReader br = new BufferedReader(new InputStreamReader(is)); |
| 241 | 0 | MD5ChecksumProperties p = new MD5ChecksumProperties(); |
| 242 | 0 | p.putAll(prevp); |
| 243 | 0 | String line; |
| 244 | 0 | while((line = br.readLine())!=null) { |
| 245 | 0 | if (line.equals("")) break; |
| 246 | 0 | p.addMD5(new File(line)); |
| 247 | } | |
| 248 | 0 | p.store(os,"MD5 Checksums"); |
| 249 | } | |
| 250 | } |
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