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/*
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* Copyright 1996-2004 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package sun.tools.jar;
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import java.io.*;
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import java.util.*;
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import java.util.zip.*;
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import java.util.jar.*;
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import java.security.cert.Certificate;
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import java.security.AccessController;
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import java.security.cert.X509Certificate;
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import java.security.Identity;
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import java.security.PublicKey;
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import java.security.Principal;
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import sun.security.provider.SystemIdentity;
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/**
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* This is OBSOLETE. DO NOT USE THIS. Use
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* java.util.jar.JarEntry.getCertificates instead. It has to stay here
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* because some apps (namely HJ and HJV) call directly into it.
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*
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* This class is stripped down greatly from JDK 1.1.x.
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*
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* @author Roland Schemers
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*/
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public class JarVerifierStream extends ZipInputStream {
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private JarEntry current;
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private Hashtable verified = new Hashtable();
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private JarInputStream jis;
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private sun.tools.jar.Manifest man = null;
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/**
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* construct a JarVerfierStream from an input stream.
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*/
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public JarVerifierStream(InputStream is)
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throws IOException
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{
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super(is);
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jis = new JarInputStream(is);
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}
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public void close()
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throws IOException
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{
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jis.close();
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}
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public void closeEntry() throws IOException {
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jis.closeEntry();
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}
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/**
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* This method scans to see which entry we're parsing and
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* keeps various state information depending on what type of
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* file is being parsed. Files it treats specially are: <ul>
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*
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* <li>Manifest files. At any point, this stream can be queried
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* for a manifest. If it is present, a Manifest object will be
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* returned.
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*
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* <li>Block Signature file. Like with the manifest, the stream
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* can be queried at any time for all blocks parsed thus far.
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*
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* </ul>
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*/
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public synchronized ZipEntry getNextEntry() throws IOException {
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current = (JarEntry) jis.getNextEntry();
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return current;
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}
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/**
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* read a single byte.
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*/
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public int read() throws IOException {
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int n = jis.read();
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if (n == -1) {
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addIds();
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}
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return n;
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}
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/**
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* read an array of bytes.
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*/
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public int read(byte[] b, int off, int len) throws IOException {
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int n = jis.read(b, off, len);
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if (n == -1) {
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addIds();
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}
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return n;
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}
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private void addIds()
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{
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if (current != null) {
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Certificate[] certs = current.getCertificates();
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if (certs != null) {
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Vector ids = getIds(certs);
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if (ids != null) {
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verified.put(current.getName(), ids);
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}
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}
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}
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}
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/**
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* Returns a Hashtable mapping filenames to vectors of identities.
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*/
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public Hashtable getVerifiedSignatures() {
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/* we may want to return a copy of this at some point.
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For now we simply trust the caller */
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if (verified.isEmpty())
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return null;
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else
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return verified;
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}
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/**
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* Returns an enumeration of PKCS7 blocks. This looks bogus,
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* but Hotjava just checks to see if enumeration is not null
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* to see if anything was signed!
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*/
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public Enumeration getBlocks() {
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if (verified.isEmpty()) {
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return null;
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} else {
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return new Enumeration() {
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public boolean hasMoreElements() { return false; }
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public Object nextElement() { return null; }
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};
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}
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}
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/**
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* This method used to be called by various versions of
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* AppletResourceLoader, even though they didn't do anything with
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* the result. We leave them and return null for backwards compatability.
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*/
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public Hashtable getNameToHash() {
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return null;
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}
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/**
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* Convert java.util.jar.Manifest object to a sun.tools.jar.Manifest
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* object.
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*/
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public sun.tools.jar.Manifest getManifest() {
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if (man == null) {
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try {
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java.util.jar.Manifest jman = jis.getManifest();
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if (jman == null)
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return null;
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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jman.write(baos);
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byte[] data = baos.toByteArray();
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man = new sun.tools.jar.Manifest(data);
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} catch (IOException ioe) {
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// return null
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}
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}
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return man;
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}
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static class CertCache {
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Certificate [] certs;
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Vector ids;
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boolean equals(Certificate[] certs) {
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if (this.certs == null) {
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if (certs!= null)
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return false;
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else
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return true;
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}
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if (certs == null)
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return false;
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boolean match;
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for (int i = 0; i < certs.length; i++) {
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match = false;
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for (int j = 0; j < this.certs.length; j++) {
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if (certs[i].equals(this.certs[j])) {
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match = true;
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break;
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}
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}
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if (!match) return false;
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}
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for (int i = 0; i < this.certs.length; i++) {
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match = false;
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for (int j = 0; j < certs.length; j++) {
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if (this.certs[i].equals(certs[j])) {
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match = true;
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break;
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}
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}
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if (!match) return false;
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}
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return true;
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}
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}
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private ArrayList certCache = null;
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/**
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* Returns the Identity vector for the given array of Certificates
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*/
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protected Vector getIds(Certificate[] certs) {
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if (certs == null)
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return null;
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if (certCache == null)
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certCache = new ArrayList();
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CertCache cc;
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for (int i = 0; i < certCache.size(); i++) {
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cc = (CertCache) certCache.get(i);
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if (cc.equals(certs)) {
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return cc.ids;
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}
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}
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cc = new CertCache();
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cc.certs = certs;
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if (certs.length > 0) {
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for (int i=0; i<certs.length; i++) {
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try {
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X509Certificate cert = (X509Certificate) certs[i];
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Principal tmpName = cert.getSubjectDN();
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final SystemIdentity id = new SystemIdentity(
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tmpName.getName(),
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null);
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byte[] encoded = cert.getEncoded();
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final java.security.Certificate oldC =
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new sun.security.x509.X509Cert(encoded);
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try {
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AccessController.doPrivileged(
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new java.security.PrivilegedExceptionAction() {
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public Object run()
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throws java.security.KeyManagementException
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{
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id.addCertificate(oldC);
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return null;
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}
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});
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} catch (java.security.PrivilegedActionException pae) {
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throw (java.security.KeyManagementException)
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pae.getException();
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}
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if (cc.ids == null)
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cc.ids = new Vector();
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cc.ids.addElement(id);
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} catch (java.security.KeyManagementException kme) {
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// ignore if we can't create Identity
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} catch (IOException ioe) {
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// ignore if we can't parse
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} catch (java.security.cert.CertificateEncodingException cee) {
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// ignore if we can't encode
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}
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}
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}
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certCache.add(cc);
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return cc.ids;
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}
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}
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