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Diffstat (limited to 'libjava/classpath/java/util/jar/JarInputStream.java')
| -rw-r--r-- | libjava/classpath/java/util/jar/JarInputStream.java | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/libjava/classpath/java/util/jar/JarInputStream.java b/libjava/classpath/java/util/jar/JarInputStream.java deleted file mode 100644 index 4de6609..0000000 --- a/libjava/classpath/java/util/jar/JarInputStream.java +++ /dev/null @@ -1,200 +0,0 @@ -/* JarInputStream.java - InputStream for reading jar files - Copyright (C) 2000, 2004 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - -package java.util.jar; - -import java.io.IOException; -import java.io.InputStream; -import java.util.zip.ZipEntry; -import java.util.zip.ZipInputStream; - -/** - * InputStream for reading jar files. - * XXX - verification of the signatures in the Manifest file is not yet - * implemented. - * - * @since 1.2 - * @author Mark Wielaard (mark@klomp.org) - */ - -public class JarInputStream extends ZipInputStream -{ - // Fields - - /** The manifest for this file or null when there was no manifest. */ - private Manifest manifest; - - /** The first real JarEntry for this file. Used by readManifest() to store - an entry that isn't the manifest but that should be returned by - getNextEntry next time it is called. Null when no firstEntry was read - while searching for the manifest entry, or when it has already been - returned by getNextEntry(). */ - private JarEntry firstEntry; - - // Constructors - - /** - * Creates a new JarInputStream and tries to read the manifest. - * If such a manifest is present the JarInputStream tries to verify all - * the entry signatures while reading. - * - * @param in InputStream to read the jar from - * @exception IOException when an error occurs when opening or reading - */ - public JarInputStream(InputStream in) throws IOException - { - this(in, true); - } - - /** - * Creates a new JarInputStream and tries to read the manifest. - * If such a manifest is present and verify is true, the JarInputStream - * tries to verify all the entry signatures while reading. - * - * @param in InputStream to read the jar from - * @param verify whether or not to verify the manifest entries - * @exception IOException when an error occurs when opening or reading - */ - public JarInputStream(InputStream in, boolean verify) throws IOException - { - super(in); - readManifest(verify); - } - - // Methods - - /** - * Set the manifest if found. Skips all entries that start with "META-INF/" - * - * @param verify when true (and a Manifest is found) checks the Manifest, - * when false no check is performed - * @exception IOException if an error occurs while reading - */ - private void readManifest(boolean verify) throws IOException - { - firstEntry = (JarEntry) super.getNextEntry(); - while ((firstEntry != null) && - firstEntry.getName().startsWith("META-INF/")) - { - if (firstEntry.getName().equals(JarFile.MANIFEST_NAME)) - { - manifest = new Manifest(this); - } - firstEntry = (JarEntry) super.getNextEntry(); - } - - if (verify) - { - // XXX - } - } - - /** - * Creates a JarEntry for a particular name and consults the manifest - * for the Attributes of the entry. - * Used by <code>ZipEntry.getNextEntry()</code> - * - * @param name the name of the new entry - */ - protected ZipEntry createZipEntry(String name) - { - ZipEntry zipEntry = super.createZipEntry(name); - JarEntry jarEntry = new JarEntry(zipEntry); - if (manifest != null) - { - jarEntry.attr = manifest.getAttributes(name); - } - return jarEntry; - } - - /** - * Returns the Manifest for the jar file or null if there was no Manifest. - */ - public Manifest getManifest() - { - return manifest; - } - - /** - * Returns the next entry or null when there are no more entries. - * Does actually return a JarEntry, if you don't want to cast it yourself - * use <code>getNextJarEntry()</code>. Does not return any entries found - * at the beginning of the ZipFile that are special - * (those that start with "META-INF/"). - * - * @exception IOException if an IO error occurs when reading the entry - */ - public ZipEntry getNextEntry() throws IOException - { - ZipEntry entry; - if (firstEntry != null) - { - entry = firstEntry; - firstEntry = null; - } - else - { - entry = super.getNextEntry(); - } - return entry; - } - - /** - * Returns the next jar entry or null when there are no more entries. - * - * @exception IOException if an IO error occurs when reading the entry - */ - public JarEntry getNextJarEntry() throws IOException - { - return (JarEntry) getNextEntry(); - } - - /** - * XXX - * - * @param buf XXX - * @param off XXX - * @param len XXX - * @return XXX - * @exception IOException XXX - */ - public int read(byte[]buf, int off, int len) throws IOException - { - // XXX if (verify) {} - return super.read(buf, off, len); - } -} |