151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/* 251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. 351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is free software; you can redistribute it and/or modify it 651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * under the terms of the GNU General Public License version 2 only, as 751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * published by the Free Software Foundation. Oracle designates this 851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * particular file as subject to the "Classpath" exception as provided 951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * by Oracle in the LICENSE file that accompanied this code. 1051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is distributed in the hope that it will be useful, but WITHOUT 1251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * version 2 for more details (a copy is included in the LICENSE file that 1551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * accompanied this code). 1651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * You should have received a copy of the GNU General Public License version 1851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2 along with this work; if not, write to the Free Software Foundation, 1951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or visit www.oracle.com if you need additional information or have any 2351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * questions. 2451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 2551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipackage java.util.jar; 2751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport java.util.zip.*; 2951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport java.io.*; 3051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport sun.security.util.ManifestEntryVerifier; 3151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport sun.misc.JarIndex; 3251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 3351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/** 3451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * The <code>JarInputStream</code> class is used to read the contents of 3551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * a JAR file from any input stream. It extends the class 3651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>java.util.zip.ZipInputStream</code> with support for reading 3751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * an optional <code>Manifest</code> entry. The <code>Manifest</code> 3851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * can be used to store meta-information about the JAR file and its entries. 3951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 4051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @author David Connelly 4151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @see Manifest 4251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @see java.util.zip.ZipInputStream 4351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @since 1.2 4451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 4551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipublic 4651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiclass JarInputStream extends ZipInputStream { 4751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private Manifest man; 4851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private JarEntry first; 4951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private JarVerifier jv; 5051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private ManifestEntryVerifier mev; 5151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private final boolean doVerify; 5251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private boolean tryManifest; 5351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 5451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 5551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Creates a new <code>JarInputStream</code> and reads the optional 5651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * manifest. If a manifest is present, also attempts to verify 5751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * the signatures if the JarInputStream is signed. 5851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param in the actual input stream 5951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception IOException if an I/O error has occurred 6051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 6151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public JarInputStream(InputStream in) throws IOException { 6251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski this(in, true); 6351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 6451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 6551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 6651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Creates a new <code>JarInputStream</code> and reads the optional 6751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * manifest. If a manifest is present and verify is true, also attempts 6851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * to verify the signatures if the JarInputStream is signed. 6951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 7051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param in the actual input stream 7151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param verify whether or not to verify the JarInputStream if 7251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * it is signed. 7351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception IOException if an I/O error has occurred 7451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 7551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public JarInputStream(InputStream in, boolean verify) throws IOException { 7651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski super(in); 7751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski this.doVerify = verify; 7851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 7951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // This implementation assumes the META-INF/MANIFEST.MF entry 8051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // should be either the first or the second entry (when preceded 8151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // by the dir META-INF/). It skips the META-INF/ and then 8251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // "consumes" the MANIFEST.MF to initialize the Manifest object. 8351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski JarEntry e = (JarEntry)super.getNextEntry(); 8451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (e != null && e.getName().equalsIgnoreCase("META-INF/")) 8551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski e = (JarEntry)super.getNextEntry(); 8651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski first = checkManifest(e); 8751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 8851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 8951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private JarEntry checkManifest(JarEntry e) 9051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throws IOException 9151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski { 9251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (e != null && JarFile.MANIFEST_NAME.equalsIgnoreCase(e.getName())) { 9351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski man = new Manifest(); 9451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski byte bytes[] = getBytes(new BufferedInputStream(this)); 9551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski man.read(new ByteArrayInputStream(bytes)); 9651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski closeEntry(); 9751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (doVerify) { 9851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski jv = new JarVerifier(bytes); 9951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski mev = new ManifestEntryVerifier(man); 10051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 10151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return (JarEntry)super.getNextEntry(); 10251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 10351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return e; 10451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 10551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 10651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private byte[] getBytes(InputStream is) 10751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throws IOException 10851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski { 10951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski byte[] buffer = new byte[8192]; 11051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski ByteArrayOutputStream baos = new ByteArrayOutputStream(2048); 11151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski int n; 11251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski while ((n = is.read(buffer, 0, buffer.length)) != -1) { 11351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski baos.write(buffer, 0, n); 11451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 11551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return baos.toByteArray(); 11651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 11751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 11851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 11951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Returns the <code>Manifest</code> for this JAR file, or 12051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>null</code> if none. 12151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 12251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the <code>Manifest</code> for this JAR file, or 12351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>null</code> if none. 12451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 12551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public Manifest getManifest() { 12651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return man; 12751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 12851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 12951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 13051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Reads the next ZIP file entry and positions the stream at the 13151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * beginning of the entry data. If verification has been enabled, 13251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * any invalid signature detected while positioning the stream for 13351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * the next entry will result in an exception. 13451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception ZipException if a ZIP file error has occurred 13551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception IOException if an I/O error has occurred 13651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception SecurityException if any of the jar file entries 13751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * are incorrectly signed. 13851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 13951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public ZipEntry getNextEntry() throws IOException { 14051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski JarEntry e; 14151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (first == null) { 14251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski e = (JarEntry)super.getNextEntry(); 14351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (tryManifest) { 14451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski e = checkManifest(e); 14551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski tryManifest = false; 14651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 14751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } else { 14851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski e = first; 14951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (first.getName().equalsIgnoreCase(JarIndex.INDEX_NAME)) 15051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski tryManifest = true; 15151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski first = null; 15251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 15351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (jv != null && e != null) { 15451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // At this point, we might have parsed all the meta-inf 15551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // entries and have nothing to verify. If we have 15651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // nothing to verify, get rid of the JarVerifier object. 15751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (jv.nothingToVerify() == true) { 15851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski jv = null; 15951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski mev = null; 16051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } else { 16151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski jv.beginEntry(e, mev); 16251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 16351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 16451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return e; 16551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 16651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 16751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 16851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Reads the next JAR file entry and positions the stream at the 16951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * beginning of the entry data. If verification has been enabled, 17051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * any invalid signature detected while positioning the stream for 17151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * the next entry will result in an exception. 17251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the next JAR file entry, or null if there are no more entries 17351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception ZipException if a ZIP file error has occurred 17451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception IOException if an I/O error has occurred 17551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception SecurityException if any of the jar file entries 17651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * are incorrectly signed. 17751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 17851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public JarEntry getNextJarEntry() throws IOException { 17951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return (JarEntry)getNextEntry(); 18051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 18151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 18251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 18351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Reads from the current JAR file entry into an array of bytes. 18451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * If <code>len</code> is not zero, the method 18551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * blocks until some input is available; otherwise, no 18651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * bytes are read and <code>0</code> is returned. 18751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * If verification has been enabled, any invalid signature 18851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * on the current entry will be reported at some point before the 18951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * end of the entry is reached. 19051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param b the buffer into which the data is read 19151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param off the start offset in the destination array <code>b</code> 19251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param len the maximum number of bytes to read 19351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the actual number of bytes read, or -1 if the end of the 19451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * entry is reached 19551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception NullPointerException If <code>b</code> is <code>null</code>. 19651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception IndexOutOfBoundsException If <code>off</code> is negative, 19751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>len</code> is negative, or <code>len</code> is greater than 19851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <code>b.length - off</code> 19951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception ZipException if a ZIP file error has occurred 20051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception IOException if an I/O error has occurred 20151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception SecurityException if any of the jar file entries 20251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * are incorrectly signed. 20351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 20451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public int read(byte[] b, int off, int len) throws IOException { 20551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski int n; 20651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (first == null) { 20751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski n = super.read(b, off, len); 20851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } else { 20951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski n = -1; 21051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 21151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (jv != null) { 21251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski jv.update(n, b, off, len, mev); 21351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 21451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return n; 21551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 21651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 21751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 21851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Creates a new <code>JarEntry</code> (<code>ZipEntry</code>) for the 21951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * specified JAR file entry name. The manifest attributes of 22051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * the specified JAR file entry name will be copied to the new 22151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <CODE>JarEntry</CODE>. 22251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 22351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param name the name of the JAR/ZIP file entry 22451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the <code>JarEntry</code> object just created 22551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 22651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski protected ZipEntry createZipEntry(String name) { 22751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski JarEntry e = new JarEntry(name); 22851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (man != null) { 22951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski e.attr = man.getAttributes(name); 23051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 23151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return e; 23251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 23351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski} 234