| /* |
| * 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.archivers.zip; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Enumeration; |
| |
| import org.apache.commons.compress.archivers.ArchiveEntry; |
| import org.apache.commons.compress.utils.IOUtils; |
| |
| /** |
| * Simple command line application that lists the contents of a ZIP archive. |
| * |
| * <p>The name of the archive must be given as a command line argument.</p> |
| * |
| * <p>Optional command line arguments specify the encoding to assume |
| * and whether to use ZipFile or ZipArchiveInputStream.</p> |
| */ |
| public final class Lister { |
| private static class CommandLine { |
| String archive; |
| boolean useStream = false; |
| String encoding; |
| boolean allowStoredEntriesWithDataDescriptor = false; |
| String dir; |
| } |
| |
| public static void main(String[] args) throws IOException { |
| CommandLine cl = parse(args); |
| File f = new File(cl.archive); |
| if (!f.isFile()) { |
| System.err.println(f + " doesn't exists or is a directory"); |
| usage(); |
| } |
| if (cl.useStream) { |
| BufferedInputStream fs = |
| new BufferedInputStream(new FileInputStream(f)); |
| try { |
| ZipArchiveInputStream zs = |
| new ZipArchiveInputStream(fs, cl.encoding, true, |
| cl.allowStoredEntriesWithDataDescriptor); |
| for (ArchiveEntry entry = zs.getNextEntry(); |
| entry != null; |
| entry = zs.getNextEntry()) { |
| ZipArchiveEntry ze = (ZipArchiveEntry) entry; |
| list(ze); |
| if (cl.dir != null) { |
| extract(cl.dir, ze, zs); |
| } |
| } |
| } finally { |
| fs.close(); |
| } |
| } else { |
| ZipFile zf = new ZipFile(f, cl.encoding); |
| try { |
| for (Enumeration<ZipArchiveEntry> entries = zf.getEntries(); |
| entries.hasMoreElements(); ) { |
| ZipArchiveEntry ze = entries.nextElement(); |
| list(ze); |
| if (cl.dir != null) { |
| InputStream is = zf.getInputStream(ze); |
| try { |
| extract(cl.dir, ze, is); |
| } finally { |
| is.close(); |
| } |
| } |
| } |
| } finally { |
| zf.close(); |
| } |
| } |
| } |
| |
| private static void list(ZipArchiveEntry entry) { |
| System.out.println(entry.getName()); |
| } |
| |
| private static void extract(String dir, ZipArchiveEntry entry, |
| InputStream is) throws IOException { |
| File f = new File(dir, entry.getName()); |
| if (!f.getParentFile().exists()) { |
| f.getParentFile().mkdirs(); |
| } |
| FileOutputStream fos = null; |
| try { |
| fos = new FileOutputStream(f); |
| IOUtils.copy(is, fos); |
| } finally { |
| if (fos != null) { |
| fos.close(); |
| } |
| } |
| } |
| |
| private static CommandLine parse(String[] args) { |
| CommandLine cl = new CommandLine(); |
| boolean error = false; |
| for (int i = 0; i < args.length; i++) { |
| if (args[i].equals("-enc")) { |
| if (args.length > i + 1) { |
| cl.encoding = args[++i]; |
| } else { |
| System.err.println("missing argument to -enc"); |
| error = true; |
| } |
| } else if (args[i].equals("-extract")) { |
| if (args.length > i + 1) { |
| cl.dir = args[++i]; |
| } else { |
| System.err.println("missing argument to -extract"); |
| error = true; |
| } |
| } else if (args[i].equals("-stream")) { |
| cl.useStream = true; |
| } else if (args[i].equals("+storeddd")) { |
| cl.allowStoredEntriesWithDataDescriptor = true; |
| } else if (args[i].equals("-file")) { |
| cl.useStream = false; |
| } else if (cl.archive != null) { |
| System.err.println("Only one archive"); |
| error = true; |
| } else { |
| cl.archive = args[i]; |
| } |
| } |
| if (error || cl.archive == null) { |
| usage(); |
| } |
| return cl; |
| } |
| |
| private static void usage() { |
| System.err.println("lister [-enc encoding] [-stream] [-file]" |
| + " [+storeddd] [-extract dir] archive"); |
| System.exit(1); |
| } |
| } |