author | weijun |
Sat, 12 Feb 2011 05:09:36 +0800 | |
changeset 8387 | f0fa7bbf889e |
parent 5627 | e636ac7a63a4 |
child 9001 | 4eb5b77d7425 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2011, Oracle and/or its affiliates. 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. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package java.util.jar; |
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import java.io.*; |
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import java.net.URL; |
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import java.util.*; |
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import java.security.*; |
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import java.security.cert.CertificateException; |
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import java.util.zip.ZipEntry; |
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import sun.security.util.ManifestDigester; |
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import sun.security.util.ManifestEntryVerifier; |
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import sun.security.util.SignatureFileVerifier; |
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import sun.security.util.Debug; |
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/** |
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* |
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* @author Roland Schemers |
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*/ |
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class JarVerifier { |
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/* Are we debugging ? */ |
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static final Debug debug = Debug.getInstance("jar"); |
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/* a table mapping names to code signers, for jar entries that have |
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had their actual hashes verified */ |
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private Hashtable verifiedSigners; |
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/* a table mapping names to code signers, for jar entries that have |
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passed the .SF/.DSA/.EC -> MANIFEST check */ |
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private Hashtable sigFileSigners; |
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/* a hash table to hold .SF bytes */ |
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private Hashtable sigFileData; |
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/** "queue" of pending PKCS7 blocks that we couldn't parse |
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* until we parsed the .SF file */ |
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private ArrayList pendingBlocks; |
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/* cache of CodeSigner objects */ |
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private ArrayList signerCache; |
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/* Are we parsing a block? */ |
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private boolean parsingBlockOrSF = false; |
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/* Are we done parsing META-INF entries? */ |
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private boolean parsingMeta = true; |
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/* Are there are files to verify? */ |
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private boolean anyToVerify = true; |
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/* The output stream to use when keeping track of files we are interested |
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in */ |
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private ByteArrayOutputStream baos; |
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/** The ManifestDigester object */ |
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private volatile ManifestDigester manDig; |
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/** the bytes for the manDig object */ |
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byte manifestRawBytes[] = null; |
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/** controls eager signature validation */ |
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boolean eagerValidation; |
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/** makes code source singleton instances unique to us */ |
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private Object csdomain = new Object(); |
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/** collect -DIGEST-MANIFEST values for blacklist */ |
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private List manifestDigests; |
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public JarVerifier(byte rawBytes[]) { |
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manifestRawBytes = rawBytes; |
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sigFileSigners = new Hashtable(); |
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verifiedSigners = new Hashtable(); |
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sigFileData = new Hashtable(11); |
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pendingBlocks = new ArrayList(); |
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baos = new ByteArrayOutputStream(); |
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manifestDigests = new ArrayList(); |
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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. |
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*/ |
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public void beginEntry(JarEntry je, ManifestEntryVerifier mev) |
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throws IOException |
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{ |
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if (je == null) |
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return; |
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if (debug != null) { |
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debug.println("beginEntry "+je.getName()); |
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} |
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String name = je.getName(); |
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/* |
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* Assumptions: |
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* 1. The manifest should be the first entry in the META-INF directory. |
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* 2. The .SF/.DSA/.EC files follow the manifest, before any normal entries |
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* 3. Any of the following will throw a SecurityException: |
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* a. digest mismatch between a manifest section and |
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* the SF section. |
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* b. digest mismatch between the actual jar entry and the manifest |
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*/ |
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if (parsingMeta) { |
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String uname = name.toUpperCase(Locale.ENGLISH); |
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if ((uname.startsWith("META-INF/") || |
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uname.startsWith("/META-INF/"))) { |
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if (je.isDirectory()) { |
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mev.setEntry(null, je); |
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return; |
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} |
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if (SignatureFileVerifier.isBlockOrSF(uname)) { |
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/* We parse only DSA, RSA or EC PKCS7 blocks. */ |
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parsingBlockOrSF = true; |
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baos.reset(); |
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mev.setEntry(null, je); |
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} |
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return; |
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} |
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} |
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if (parsingMeta) { |
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doneWithMeta(); |
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} |
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if (je.isDirectory()) { |
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mev.setEntry(null, je); |
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return; |
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} |
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// be liberal in what you accept. If the name starts with ./, remove |
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// it as we internally canonicalize it with out the ./. |
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if (name.startsWith("./")) |
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name = name.substring(2); |
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// be liberal in what you accept. If the name starts with /, remove |
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// it as we internally canonicalize it with out the /. |
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if (name.startsWith("/")) |
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name = name.substring(1); |
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// only set the jev object for entries that have a signature |
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if (sigFileSigners.get(name) != null) { |
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mev.setEntry(name, je); |
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return; |
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} |
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// don't compute the digest for this entry |
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mev.setEntry(null, je); |
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return; |
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} |
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/** |
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* update a single byte. |
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*/ |
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public void update(int b, ManifestEntryVerifier mev) |
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throws IOException |
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{ |
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if (b != -1) { |
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if (parsingBlockOrSF) { |
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baos.write(b); |
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} else { |
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mev.update((byte)b); |
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} |
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} else { |
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processEntry(mev); |
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} |
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} |
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/** |
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* update an array of bytes. |
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*/ |
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public void update(int n, byte[] b, int off, int len, |
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ManifestEntryVerifier mev) |
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throws IOException |
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{ |
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if (n != -1) { |
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if (parsingBlockOrSF) { |
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baos.write(b, off, n); |
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} else { |
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mev.update(b, off, n); |
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} |
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} else { |
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processEntry(mev); |
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} |
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} |
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/** |
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* called when we reach the end of entry in one of the read() methods. |
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*/ |
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private void processEntry(ManifestEntryVerifier mev) |
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throws IOException |
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{ |
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if (!parsingBlockOrSF) { |
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JarEntry je = mev.getEntry(); |
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if ((je != null) && (je.signers == null)) { |
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je.signers = mev.verify(verifiedSigners, sigFileSigners); |
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je.certs = mapSignersToCertArray(je.signers); |
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} |
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} else { |
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try { |
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parsingBlockOrSF = false; |
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if (debug != null) { |
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debug.println("processEntry: processing block"); |
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} |
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String uname = mev.getEntry().getName() |
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.toUpperCase(Locale.ENGLISH); |
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if (uname.endsWith(".SF")) { |
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String key = uname.substring(0, uname.length()-3); |
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byte bytes[] = baos.toByteArray(); |
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// add to sigFileData in case future blocks need it |
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sigFileData.put(key, bytes); |
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// check pending blocks, we can now process |
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// anyone waiting for this .SF file |
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Iterator it = pendingBlocks.iterator(); |
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while (it.hasNext()) { |
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SignatureFileVerifier sfv = |
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(SignatureFileVerifier) it.next(); |
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if (sfv.needSignatureFile(key)) { |
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if (debug != null) { |
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debug.println( |
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"processEntry: processing pending block"); |
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} |
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sfv.setSignatureFile(bytes); |
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sfv.process(sigFileSigners, manifestDigests); |
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} |
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} |
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return; |
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} |
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// now we are parsing a signature block file |
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String key = uname.substring(0, uname.lastIndexOf(".")); |
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if (signerCache == null) |
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signerCache = new ArrayList(); |
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if (manDig == null) { |
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synchronized(manifestRawBytes) { |
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if (manDig == null) { |
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manDig = new ManifestDigester(manifestRawBytes); |
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manifestRawBytes = null; |
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} |
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} |
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} |
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284 |
SignatureFileVerifier sfv = |
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new SignatureFileVerifier(signerCache, |
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manDig, uname, baos.toByteArray()); |
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288 |
if (sfv.needSignatureFileBytes()) { |
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// see if we have already parsed an external .SF file |
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byte[] bytes = (byte[]) sigFileData.get(key); |
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292 |
if (bytes == null) { |
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// put this block on queue for later processing |
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// since we don't have the .SF bytes yet |
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// (uname, block); |
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296 |
if (debug != null) { |
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297 |
debug.println("adding pending block"); |
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298 |
} |
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299 |
pendingBlocks.add(sfv); |
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300 |
return; |
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301 |
} else { |
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302 |
sfv.setSignatureFile(bytes); |
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303 |
} |
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304 |
} |
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sfv.process(sigFileSigners, manifestDigests); |
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} catch (IOException ioe) { |
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// e.g. sun.security.pkcs.ParsingException |
2 | 309 |
if (debug != null) debug.println("processEntry caught: "+ioe); |
310 |
// ignore and treat as unsigned |
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311 |
} catch (SignatureException se) { |
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312 |
if (debug != null) debug.println("processEntry caught: "+se); |
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313 |
// ignore and treat as unsigned |
|
314 |
} catch (NoSuchAlgorithmException nsae) { |
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315 |
if (debug != null) debug.println("processEntry caught: "+nsae); |
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316 |
// ignore and treat as unsigned |
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317 |
} catch (CertificateException ce) { |
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318 |
if (debug != null) debug.println("processEntry caught: "+ce); |
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319 |
// ignore and treat as unsigned |
|
320 |
} |
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321 |
} |
|
322 |
} |
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323 |
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324 |
/** |
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325 |
* Return an array of java.security.cert.Certificate objects for |
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326 |
* the given file in the jar. |
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327 |
* @deprecated |
2 | 328 |
*/ |
329 |
public java.security.cert.Certificate[] getCerts(String name) |
|
330 |
{ |
|
331 |
return mapSignersToCertArray(getCodeSigners(name)); |
|
332 |
} |
|
333 |
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public java.security.cert.Certificate[] getCerts(JarFile jar, JarEntry entry) |
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{ |
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return mapSignersToCertArray(getCodeSigners(jar, entry)); |
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} |
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338 |
|
2 | 339 |
/** |
340 |
* return an array of CodeSigner objects for |
|
341 |
* the given file in the jar. this array is not cloned. |
|
342 |
* |
|
343 |
*/ |
|
344 |
public CodeSigner[] getCodeSigners(String name) |
|
345 |
{ |
|
346 |
return (CodeSigner[])verifiedSigners.get(name); |
|
347 |
} |
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348 |
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public CodeSigner[] getCodeSigners(JarFile jar, JarEntry entry) |
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350 |
{ |
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String name = entry.getName(); |
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if (eagerValidation && sigFileSigners.get(name) != null) { |
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353 |
/* |
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354 |
* Force a read of the entry data to generate the |
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355 |
* verification hash. |
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356 |
*/ |
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357 |
try { |
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InputStream s = jar.getInputStream(entry); |
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byte[] buffer = new byte[1024]; |
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int n = buffer.length; |
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361 |
while (n != -1) { |
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362 |
n = s.read(buffer, 0, buffer.length); |
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} |
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364 |
s.close(); |
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365 |
} catch (IOException e) { |
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366 |
} |
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367 |
} |
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368 |
return getCodeSigners(name); |
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|
369 |
} |
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|
370 |
|
2 | 371 |
/* |
372 |
* Convert an array of signers into an array of concatenated certificate |
|
373 |
* arrays. |
|
374 |
*/ |
|
375 |
private static java.security.cert.Certificate[] mapSignersToCertArray( |
|
376 |
CodeSigner[] signers) { |
|
377 |
||
378 |
if (signers != null) { |
|
379 |
ArrayList certChains = new ArrayList(); |
|
380 |
for (int i = 0; i < signers.length; i++) { |
|
381 |
certChains.addAll( |
|
382 |
signers[i].getSignerCertPath().getCertificates()); |
|
383 |
} |
|
384 |
||
385 |
// Convert into a Certificate[] |
|
386 |
return (java.security.cert.Certificate[]) |
|
387 |
certChains.toArray( |
|
388 |
new java.security.cert.Certificate[certChains.size()]); |
|
389 |
} |
|
390 |
return null; |
|
391 |
} |
|
392 |
||
393 |
/** |
|
394 |
* returns true if there no files to verify. |
|
395 |
* should only be called after all the META-INF entries |
|
396 |
* have been processed. |
|
397 |
*/ |
|
398 |
boolean nothingToVerify() |
|
399 |
{ |
|
400 |
return (anyToVerify == false); |
|
401 |
} |
|
402 |
||
403 |
/** |
|
404 |
* called to let us know we have processed all the |
|
405 |
* META-INF entries, and if we re-read one of them, don't |
|
406 |
* re-process it. Also gets rid of any data structures |
|
407 |
* we needed when parsing META-INF entries. |
|
408 |
*/ |
|
409 |
void doneWithMeta() |
|
410 |
{ |
|
411 |
parsingMeta = false; |
|
412 |
anyToVerify = !sigFileSigners.isEmpty(); |
|
413 |
baos = null; |
|
414 |
sigFileData = null; |
|
415 |
pendingBlocks = null; |
|
416 |
signerCache = null; |
|
417 |
manDig = null; |
|
418 |
} |
|
419 |
||
420 |
static class VerifierStream extends java.io.InputStream { |
|
421 |
||
422 |
private InputStream is; |
|
423 |
private JarVerifier jv; |
|
424 |
private ManifestEntryVerifier mev; |
|
425 |
private long numLeft; |
|
426 |
||
427 |
VerifierStream(Manifest man, |
|
428 |
JarEntry je, |
|
429 |
InputStream is, |
|
430 |
JarVerifier jv) throws IOException |
|
431 |
{ |
|
432 |
this.is = is; |
|
433 |
this.jv = jv; |
|
434 |
this.mev = new ManifestEntryVerifier(man); |
|
435 |
this.jv.beginEntry(je, mev); |
|
436 |
this.numLeft = je.getSize(); |
|
437 |
if (this.numLeft == 0) |
|
438 |
this.jv.update(-1, this.mev); |
|
439 |
} |
|
440 |
||
441 |
public int read() throws IOException |
|
442 |
{ |
|
443 |
if (numLeft > 0) { |
|
444 |
int b = is.read(); |
|
445 |
jv.update(b, mev); |
|
446 |
numLeft--; |
|
447 |
if (numLeft == 0) |
|
448 |
jv.update(-1, mev); |
|
449 |
return b; |
|
450 |
} else { |
|
451 |
return -1; |
|
452 |
} |
|
453 |
} |
|
454 |
||
455 |
public int read(byte b[], int off, int len) throws IOException { |
|
456 |
if ((numLeft > 0) && (numLeft < len)) { |
|
457 |
len = (int)numLeft; |
|
458 |
} |
|
459 |
||
460 |
if (numLeft > 0) { |
|
461 |
int n = is.read(b, off, len); |
|
462 |
jv.update(n, b, off, len, mev); |
|
463 |
numLeft -= n; |
|
464 |
if (numLeft == 0) |
|
465 |
jv.update(-1, b, off, len, mev); |
|
466 |
return n; |
|
467 |
} else { |
|
468 |
return -1; |
|
469 |
} |
|
470 |
} |
|
471 |
||
472 |
public void close() |
|
473 |
throws IOException |
|
474 |
{ |
|
475 |
if (is != null) |
|
476 |
is.close(); |
|
477 |
is = null; |
|
478 |
mev = null; |
|
479 |
jv = null; |
|
480 |
} |
|
481 |
||
482 |
public int available() throws IOException { |
|
483 |
return is.available(); |
|
484 |
} |
|
485 |
||
486 |
} |
|
8387
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|
487 |
|
f0fa7bbf889e
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|
488 |
// Extended JavaUtilJarAccess CodeSource API Support |
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|
489 |
|
f0fa7bbf889e
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|
490 |
private Map urlToCodeSourceMap = new HashMap(); |
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|
491 |
private Map signerToCodeSource = new HashMap(); |
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|
492 |
private URL lastURL; |
f0fa7bbf889e
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diff
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|
493 |
private Map lastURLMap; |
f0fa7bbf889e
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|
494 |
|
f0fa7bbf889e
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|
495 |
/* |
f0fa7bbf889e
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|
496 |
* Create a unique mapping from codeSigner cache entries to CodeSource. |
f0fa7bbf889e
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|
497 |
* In theory, multiple URLs origins could map to a single locally cached |
f0fa7bbf889e
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|
498 |
* and shared JAR file although in practice there will be a single URL in use. |
f0fa7bbf889e
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|
499 |
*/ |
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|
500 |
private synchronized CodeSource mapSignersToCodeSource(URL url, CodeSigner[] signers) { |
f0fa7bbf889e
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|
501 |
Map map; |
f0fa7bbf889e
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diff
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|
502 |
if (url == lastURL) { |
f0fa7bbf889e
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parents:
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diff
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|
503 |
map = lastURLMap; |
f0fa7bbf889e
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parents:
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|
504 |
} else { |
f0fa7bbf889e
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|
505 |
map = (Map) urlToCodeSourceMap.get(url); |
f0fa7bbf889e
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diff
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|
506 |
if (map == null) { |
f0fa7bbf889e
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diff
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|
507 |
map = new HashMap(); |
f0fa7bbf889e
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diff
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|
508 |
urlToCodeSourceMap.put(url, map); |
f0fa7bbf889e
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|
509 |
} |
f0fa7bbf889e
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parents:
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diff
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|
510 |
lastURLMap = map; |
f0fa7bbf889e
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diff
changeset
|
511 |
lastURL = url; |
f0fa7bbf889e
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diff
changeset
|
512 |
} |
f0fa7bbf889e
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changeset
|
513 |
CodeSource cs = (CodeSource) map.get(signers); |
f0fa7bbf889e
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diff
changeset
|
514 |
if (cs == null) { |
f0fa7bbf889e
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|
515 |
cs = new VerifierCodeSource(csdomain, url, signers); |
f0fa7bbf889e
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diff
changeset
|
516 |
signerToCodeSource.put(signers, cs); |
f0fa7bbf889e
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diff
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|
517 |
} |
f0fa7bbf889e
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parents:
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diff
changeset
|
518 |
return cs; |
f0fa7bbf889e
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parents:
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diff
changeset
|
519 |
} |
f0fa7bbf889e
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parents:
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diff
changeset
|
520 |
|
f0fa7bbf889e
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parents:
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diff
changeset
|
521 |
private CodeSource[] mapSignersToCodeSources(URL url, List signers, boolean unsigned) { |
f0fa7bbf889e
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parents:
5627
diff
changeset
|
522 |
List sources = new ArrayList(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
523 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
524 |
for (int i = 0; i < signers.size(); i++) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
525 |
sources.add(mapSignersToCodeSource(url, (CodeSigner[]) signers.get(i))); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
526 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
527 |
if (unsigned) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
528 |
sources.add(mapSignersToCodeSource(url, null)); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
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diff
changeset
|
529 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
530 |
return (CodeSource[]) sources.toArray(new CodeSource[sources.size()]); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
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diff
changeset
|
531 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
532 |
private CodeSigner[] emptySigner = new CodeSigner[0]; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
533 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
534 |
/* |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
535 |
* Match CodeSource to a CodeSigner[] in the signer cache. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
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diff
changeset
|
536 |
*/ |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
537 |
private CodeSigner[] findMatchingSigners(CodeSource cs) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
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diff
changeset
|
538 |
if (cs instanceof VerifierCodeSource) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
539 |
VerifierCodeSource vcs = (VerifierCodeSource) cs; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
540 |
if (vcs.isSameDomain(csdomain)) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
541 |
return ((VerifierCodeSource) cs).getPrivateSigners(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
542 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
543 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
544 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
545 |
/* |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
546 |
* In practice signers should always be optimized above |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
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diff
changeset
|
547 |
* but this handles a CodeSource of any type, just in case. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
548 |
*/ |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
549 |
CodeSource[] sources = mapSignersToCodeSources(cs.getLocation(), getJarCodeSigners(), true); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
550 |
List sourceList = new ArrayList(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
551 |
for (int i = 0; i < sources.length; i++) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
552 |
sourceList.add(sources[i]); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
553 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
554 |
int j = sourceList.indexOf(cs); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
555 |
if (j != -1) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
556 |
CodeSigner[] match; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
557 |
match = ((VerifierCodeSource) sourceList.get(j)).getPrivateSigners(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
558 |
if (match == null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
559 |
match = emptySigner; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
560 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
561 |
return match; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
562 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
563 |
return null; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
564 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
565 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
566 |
/* |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
567 |
* Instances of this class hold uncopied references to internal |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
568 |
* signing data that can be compared by object reference identity. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
569 |
*/ |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
570 |
private static class VerifierCodeSource extends CodeSource { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
571 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
572 |
URL vlocation; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
573 |
CodeSigner[] vsigners; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
574 |
java.security.cert.Certificate[] vcerts; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
575 |
Object csdomain; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
576 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
577 |
VerifierCodeSource(Object csdomain, URL location, CodeSigner[] signers) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
578 |
super(location, signers); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
579 |
this.csdomain = csdomain; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
580 |
vlocation = location; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
581 |
vsigners = signers; // from signerCache |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
582 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
583 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
584 |
VerifierCodeSource(Object csdomain, URL location, java.security.cert.Certificate[] certs) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
585 |
super(location, certs); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
586 |
this.csdomain = csdomain; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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changeset
|
587 |
vlocation = location; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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diff
changeset
|
588 |
vcerts = certs; // from signerCache |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
589 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
590 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
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diff
changeset
|
591 |
/* |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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diff
changeset
|
592 |
* All VerifierCodeSource instances are constructed based on |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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changeset
|
593 |
* singleton signerCache or signerCacheCert entries for each unique signer. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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changeset
|
594 |
* No CodeSigner<->Certificate[] conversion is required. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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diff
changeset
|
595 |
* We use these assumptions to optimize equality comparisons. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
596 |
*/ |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
597 |
public boolean equals(Object obj) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
598 |
if (obj == this) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
599 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
600 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
601 |
if (obj instanceof VerifierCodeSource) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
602 |
VerifierCodeSource that = (VerifierCodeSource) obj; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
603 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
604 |
/* |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
605 |
* Only compare against other per-signer singletons constructed |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
606 |
* on behalf of the same JarFile instance. Otherwise, compare |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
607 |
* things the slower way. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
608 |
*/ |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
609 |
if (isSameDomain(that.csdomain)) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
610 |
if (that.vsigners != this.vsigners |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
611 |
|| that.vcerts != this.vcerts) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
612 |
return false; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
613 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
614 |
if (that.vlocation != null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
615 |
return that.vlocation.equals(this.vlocation); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
616 |
} else if (this.vlocation != null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
617 |
return this.vlocation.equals(that.vlocation); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
618 |
} else { // both null |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
619 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
620 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
621 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
622 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
623 |
return super.equals(obj); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
624 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
625 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
626 |
boolean isSameDomain(Object csdomain) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
627 |
return this.csdomain == csdomain; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
628 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
629 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
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diff
changeset
|
630 |
private CodeSigner[] getPrivateSigners() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
631 |
return vsigners; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
632 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
633 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
634 |
private java.security.cert.Certificate[] getPrivateCertificates() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
635 |
return vcerts; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
636 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
637 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
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diff
changeset
|
638 |
private Map signerMap; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
639 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
640 |
private synchronized Map signerMap() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
641 |
if (signerMap == null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
642 |
/* |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
643 |
* Snapshot signer state so it doesn't change on us. We care |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
644 |
* only about the asserted signatures. Verification of |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
645 |
* signature validity happens via the JarEntry apis. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
646 |
*/ |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
647 |
signerMap = new HashMap(verifiedSigners.size() + sigFileSigners.size()); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
648 |
signerMap.putAll(verifiedSigners); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
649 |
signerMap.putAll(sigFileSigners); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
650 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
651 |
return signerMap; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
652 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
653 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
654 |
public synchronized Enumeration<String> entryNames(JarFile jar, final CodeSource[] cs) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
655 |
final Map map = signerMap(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
656 |
final Iterator itor = map.entrySet().iterator(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
657 |
boolean matchUnsigned = false; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
658 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
659 |
/* |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
660 |
* Grab a single copy of the CodeSigner arrays. Check |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
661 |
* to see if we can optimize CodeSigner equality test. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
662 |
*/ |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
663 |
List req = new ArrayList(cs.length); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
664 |
for (int i = 0; i < cs.length; i++) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
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parents:
5627
diff
changeset
|
665 |
CodeSigner[] match = findMatchingSigners(cs[i]); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
666 |
if (match != null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
667 |
if (match.length > 0) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
668 |
req.add(match); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
669 |
} else { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
670 |
matchUnsigned = true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
671 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
672 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
673 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
674 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
675 |
final List signersReq = req; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
676 |
final Enumeration enum2 = (matchUnsigned) ? unsignedEntryNames(jar) : emptyEnumeration; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
677 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
678 |
return new Enumeration<String>() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
679 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
680 |
String name; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
681 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
682 |
public boolean hasMoreElements() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
683 |
if (name != null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
684 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
685 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
686 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
687 |
while (itor.hasNext()) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
688 |
Map.Entry e = (Map.Entry) itor.next(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
689 |
if (signersReq.contains((CodeSigner[]) e.getValue())) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
690 |
name = (String) e.getKey(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
691 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
692 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
693 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
694 |
while (enum2.hasMoreElements()) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
695 |
name = (String) enum2.nextElement(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
696 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
697 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
698 |
return false; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
699 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
700 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
701 |
public String nextElement() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
702 |
if (hasMoreElements()) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
703 |
String value = name; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
704 |
name = null; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
705 |
return value; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
706 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
707 |
throw new NoSuchElementException(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
708 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
709 |
}; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
710 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
711 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
712 |
/* |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
713 |
* Like entries() but screens out internal JAR mechanism entries |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
714 |
* and includes signed entries with no ZIP data. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
715 |
*/ |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
716 |
public Enumeration<JarEntry> entries2(final JarFile jar, Enumeration e) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
717 |
final Map map = new HashMap(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
718 |
map.putAll(signerMap()); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
719 |
final Enumeration enum_ = e; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
720 |
return new Enumeration<JarEntry>() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
721 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
722 |
Enumeration signers = null; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
723 |
JarEntry entry; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
724 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
725 |
public boolean hasMoreElements() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
726 |
if (entry != null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
727 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
728 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
729 |
while (enum_.hasMoreElements()) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
730 |
ZipEntry ze = (ZipEntry) enum_.nextElement(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
731 |
if (JarVerifier.isSigningRelated(ze.getName())) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
732 |
continue; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
733 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
734 |
entry = jar.newEntry(ze); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
735 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
736 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
737 |
if (signers == null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
738 |
signers = Collections.enumeration(map.keySet()); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
739 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
740 |
while (signers.hasMoreElements()) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
741 |
String name = (String) signers.nextElement(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
742 |
entry = jar.newEntry(new ZipEntry(name)); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
743 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
744 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
745 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
746 |
// Any map entries left? |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
747 |
return false; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
748 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
749 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
750 |
public JarEntry nextElement() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
751 |
if (hasMoreElements()) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
752 |
JarEntry je = entry; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
753 |
map.remove(je.getName()); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
754 |
entry = null; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
755 |
return je; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
756 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
757 |
throw new NoSuchElementException(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
758 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
759 |
}; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
760 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
761 |
private Enumeration emptyEnumeration = new Enumeration<String>() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
762 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
763 |
public boolean hasMoreElements() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
764 |
return false; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
765 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
766 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
767 |
public String nextElement() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
768 |
throw new NoSuchElementException(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
769 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
770 |
}; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
771 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
772 |
// true if file is part of the signature mechanism itself |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
773 |
static boolean isSigningRelated(String name) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
774 |
name = name.toUpperCase(Locale.ENGLISH); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
775 |
if (!name.startsWith("META-INF/")) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
776 |
return false; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
777 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
778 |
name = name.substring(9); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
779 |
if (name.indexOf('/') != -1) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
780 |
return false; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
781 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
782 |
if (name.endsWith(".DSA") |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
783 |
|| name.endsWith(".RSA") |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
784 |
|| name.endsWith(".SF") |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
785 |
|| name.endsWith(".EC") |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
786 |
|| name.startsWith("SIG-") |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
787 |
|| name.equals("MANIFEST.MF")) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
788 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
789 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
790 |
return false; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
791 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
792 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
793 |
private Enumeration<String> unsignedEntryNames(JarFile jar) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
794 |
final Map map = signerMap(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
795 |
final Enumeration entries = jar.entries(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
796 |
return new Enumeration<String>() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
797 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
798 |
String name; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
799 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
800 |
/* |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
801 |
* Grab entries from ZIP directory but screen out |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
802 |
* metadata. |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
803 |
*/ |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
804 |
public boolean hasMoreElements() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
805 |
if (name != null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
806 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
807 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
808 |
while (entries.hasMoreElements()) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
809 |
String value; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
810 |
ZipEntry e = (ZipEntry) entries.nextElement(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
811 |
value = e.getName(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
812 |
if (e.isDirectory() || isSigningRelated(value)) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
813 |
continue; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
814 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
815 |
if (map.get(value) == null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
816 |
name = value; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
817 |
return true; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
818 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
819 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
820 |
return false; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
821 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
822 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
823 |
public String nextElement() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
824 |
if (hasMoreElements()) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
825 |
String value = name; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
826 |
name = null; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
827 |
return value; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
828 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
829 |
throw new NoSuchElementException(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
830 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
831 |
}; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
832 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
833 |
private List jarCodeSigners; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
834 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
835 |
private synchronized List getJarCodeSigners() { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
836 |
CodeSigner[] signers; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
837 |
if (jarCodeSigners == null) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
838 |
HashSet set = new HashSet(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
839 |
set.addAll(signerMap().values()); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
840 |
jarCodeSigners = new ArrayList(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
841 |
jarCodeSigners.addAll(set); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
842 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
843 |
return jarCodeSigners; |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
844 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
845 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
846 |
public synchronized CodeSource[] getCodeSources(JarFile jar, URL url) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
847 |
boolean hasUnsigned = unsignedEntryNames(jar).hasMoreElements(); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
848 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
849 |
return mapSignersToCodeSources(url, getJarCodeSigners(), hasUnsigned); |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
850 |
} |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
851 |
|
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
852 |
public CodeSource getCodeSource(URL url, String name) { |
f0fa7bbf889e
6742654: Code insertion/replacement attacks against signed jars
weijun
parents:
5627
diff
changeset
|
853 |
CodeSigner[] signers; |
f0fa7bbf889e
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changeset
|
854 |
|
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|
855 |
signers = (CodeSigner[]) signerMap().get(name); |
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|
856 |
return mapSignersToCodeSource(url, signers); |
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|
857 |
} |
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changeset
|
858 |
|
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|
859 |
public CodeSource getCodeSource(URL url, JarFile jar, JarEntry je) { |
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|
860 |
CodeSigner[] signers; |
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changeset
|
861 |
|
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|
862 |
return mapSignersToCodeSource(url, getCodeSigners(jar, je)); |
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|
863 |
} |
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changeset
|
864 |
|
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|
865 |
public void setEagerValidation(boolean eager) { |
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|
866 |
eagerValidation = eager; |
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changeset
|
867 |
} |
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changeset
|
868 |
|
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|
869 |
public synchronized List getManifestDigests() { |
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|
870 |
return Collections.unmodifiableList(manifestDigests); |
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|
871 |
} |
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changeset
|
872 |
|
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|
873 |
static CodeSource getUnsignedCS(URL url) { |
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|
874 |
return new VerifierCodeSource(null, url, (java.security.cert.Certificate[]) null); |
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|
875 |
} |
2 | 876 |
} |