| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.commons.compress.harmony.unpack200; |
| |
| import java.io.BufferedInputStream; |
| import java.io.BufferedOutputStream; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarInputStream; |
| import java.util.jar.JarOutputStream; |
| import java.util.zip.GZIPInputStream; |
| |
| import org.apache.commons.compress.harmony.pack200.Pack200Exception; |
| import org.apache.commons.io.IOUtils; |
| import org.apache.commons.io.input.BoundedInputStream; |
| |
| /** |
| * Archive is the main entry point to unpack200. An archive is constructed with either two file names, a pack file and an output file name or an input stream |
| * and an output streams. Then {@code unpack()} is called, to unpack the pack200 archive. |
| */ |
| public class Archive { |
| |
| private static final int[] MAGIC = { 0xCA, 0xFE, 0xD0, 0x0D }; |
| |
| private BoundedInputStream inputStream; |
| |
| private final JarOutputStream outputStream; |
| |
| private boolean removePackFile; |
| |
| private int logLevel = Segment.LOG_LEVEL_STANDARD; |
| |
| private FileOutputStream logFile; |
| |
| private boolean overrideDeflateHint; |
| |
| private boolean deflateHint; |
| |
| private final Path inputPath; |
| |
| private final long inputSize; |
| |
| private String outputFileName; |
| |
| /** |
| * Creates an Archive with streams for the input and output files. Note: If you use this method then calling {@link #setRemovePackFile(boolean)} will have |
| * no effect. |
| * |
| * @param inputStream the input stream, preferably a {@link BoundedInputStream}. The bound can the the file size. |
| * @param outputStream the JAR output stream. |
| * @throws IOException if an I/O error occurs |
| */ |
| public Archive(final InputStream inputStream, final JarOutputStream outputStream) throws IOException { |
| this.inputStream = Pack200UnpackerAdapter.newBoundedInputStream(inputStream); |
| this.outputStream = outputStream; |
| if (inputStream instanceof FileInputStream) { |
| inputPath = Paths.get(Pack200UnpackerAdapter.readPath((FileInputStream) inputStream)); |
| } else { |
| inputPath = null; |
| } |
| this.inputSize = -1; |
| } |
| |
| /** |
| * Creates an Archive with the given input and output file names. |
| * |
| * @param inputFileName the input file name. |
| * @param outputFileName the output file name |
| * @throws FileNotFoundException if the input file does not exist |
| * @throws IOException if an I/O error occurs |
| */ |
| @SuppressWarnings("resource") |
| public Archive(final String inputFileName, final String outputFileName) throws FileNotFoundException, IOException { |
| this.inputPath = Paths.get(inputFileName); |
| this.inputSize = Files.size(this.inputPath); |
| this.inputStream = new BoundedInputStream(Files.newInputStream(inputPath), inputSize); |
| this.outputStream = new JarOutputStream(new BufferedOutputStream(new FileOutputStream(outputFileName))); |
| this.outputFileName = outputFileName; |
| } |
| |
| private boolean available(final InputStream inputStream) throws IOException { |
| inputStream.mark(1); |
| final int check = inputStream.read(); |
| inputStream.reset(); |
| return check != -1; |
| } |
| |
| public void setDeflateHint(final boolean deflateHint) { |
| overrideDeflateHint = true; |
| this.deflateHint = deflateHint; |
| } |
| |
| public void setLogFile(final String logFileName) throws FileNotFoundException { |
| this.logFile = new FileOutputStream(logFileName); |
| } |
| |
| public void setLogFile(final String logFileName, final boolean append) throws FileNotFoundException { |
| logFile = new FileOutputStream(logFileName, append); |
| } |
| |
| public void setQuiet(final boolean quiet) { |
| if (quiet || logLevel == Segment.LOG_LEVEL_QUIET) { |
| logLevel = Segment.LOG_LEVEL_QUIET; |
| } |
| } |
| |
| /** |
| * If removePackFile is set to true, the input file is deleted after unpacking. |
| * |
| * @param removePackFile If true, the input file is deleted after unpacking. |
| */ |
| public void setRemovePackFile(final boolean removePackFile) { |
| this.removePackFile = removePackFile; |
| } |
| |
| public void setVerbose(final boolean verbose) { |
| if (verbose) { |
| logLevel = Segment.LOG_LEVEL_VERBOSE; |
| } else if (logLevel == Segment.LOG_LEVEL_VERBOSE) { |
| logLevel = Segment.LOG_LEVEL_STANDARD; |
| } |
| } |
| |
| /** |
| * Unpacks the Archive from the input file to the output file |
| * |
| * @throws Pack200Exception TODO |
| * @throws IOException TODO |
| */ |
| public void unpack() throws Pack200Exception, IOException { |
| outputStream.setComment("PACK200"); |
| try { |
| if (!inputStream.markSupported()) { |
| inputStream = new BoundedInputStream(new BufferedInputStream(inputStream)); |
| if (!inputStream.markSupported()) { |
| throw new IllegalStateException(); |
| } |
| } |
| inputStream.mark(2); |
| if ((inputStream.read() & 0xFF | (inputStream.read() & 0xFF) << 8) == GZIPInputStream.GZIP_MAGIC) { |
| inputStream.reset(); |
| inputStream = new BoundedInputStream(new BufferedInputStream(new GZIPInputStream(inputStream))); |
| } else { |
| inputStream.reset(); |
| } |
| inputStream.mark(MAGIC.length); |
| // pack200 |
| final int[] word = new int[MAGIC.length]; |
| for (int i = 0; i < word.length; i++) { |
| word[i] = inputStream.read(); |
| } |
| boolean compressedWithE0 = false; |
| for (int m = 0; m < MAGIC.length; m++) { |
| if (word[m] != MAGIC[m]) { |
| compressedWithE0 = true; |
| } |
| } |
| inputStream.reset(); |
| if (compressedWithE0) { // The original Jar was not packed, so just |
| // copy it across |
| final JarInputStream jarInputStream = new JarInputStream(inputStream); |
| JarEntry jarEntry; |
| while ((jarEntry = jarInputStream.getNextJarEntry()) != null) { |
| outputStream.putNextEntry(jarEntry); |
| final byte[] bytes = new byte[16_384]; |
| int bytesRead = jarInputStream.read(bytes); |
| while (bytesRead != -1) { |
| outputStream.write(bytes, 0, bytesRead); |
| bytesRead = jarInputStream.read(bytes); |
| } |
| outputStream.closeEntry(); |
| } |
| } else { |
| int i = 0; |
| while (available(inputStream)) { |
| i++; |
| final Segment segment = new Segment(); |
| segment.setLogLevel(logLevel); |
| segment.setLogStream(logFile != null ? (OutputStream) logFile : (OutputStream) System.out); |
| segment.setPreRead(false); |
| |
| if (i == 1) { |
| segment.log(Segment.LOG_LEVEL_VERBOSE, "Unpacking from " + inputPath + " to " + outputFileName); |
| } |
| segment.log(Segment.LOG_LEVEL_VERBOSE, "Reading segment " + i); |
| if (overrideDeflateHint) { |
| segment.overrideDeflateHint(deflateHint); |
| } |
| segment.unpack(inputStream, outputStream); |
| outputStream.flush(); |
| } |
| } |
| } finally { |
| IOUtils.closeQuietly(inputStream); |
| IOUtils.closeQuietly(outputStream); |
| IOUtils.closeQuietly(logFile); |
| } |
| if (removePackFile && inputPath != null) { |
| Files.delete(inputPath); |
| } |
| } |
| |
| } |