jaxws/src/java.xml.soap/share/classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/UUDecoderStream.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxws/src/java.xml.soap/share/classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/UUDecoderStream.java Sun Aug 17 15:52:15 2014 +0100
@@ -0,0 +1,257 @@
+/*
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @(#)UUDecoderStream.java 1.8 02/07/08
+ */
+
+
+
+package com.sun.xml.internal.messaging.saaj.packaging.mime.util;
+
+import java.io.*;
+
+/**
+ * This class implements a UUDecoder. It is implemented as
+ * a FilterInputStream, so one can just wrap this class around
+ * any input stream and read bytes from this filter. The decoding
+ * is done as the bytes are read out.
+ *
+ * @author John Mani
+ * @author Bill Shannon
+ */
+
+public class UUDecoderStream extends FilterInputStream {
+ private String name;
+ private int mode;
+
+ private byte[] buffer; // cache of decoded bytes
+ private int bufsize = 0; // size of the cache
+ private int index = 0; // index into the cache
+ private boolean gotPrefix = false;
+ private boolean gotEnd = false;
+ private LineInputStream lin;
+
+ /**
+ * Create a UUdecoder that decodes the specified input stream
+ * @param in the input stream
+ */
+ public UUDecoderStream(InputStream in) {
+ super(in);
+ lin = new LineInputStream(in);
+ buffer = new byte[45]; // max decoded chars in a line = 45
+ }
+
+ /**
+ * Read the next decoded byte from this input stream. The byte
+ * is returned as an <code>int</code> in the range <code>0</code>
+ * to <code>255</code>. If no byte is available because the end of
+ * the stream has been reached, the value <code>-1</code> is returned.
+ * This method blocks until input data is available, the end of the
+ * stream is detected, or an exception is thrown.
+ *
+ * @return next byte of data, or <code>-1</code> if the end of
+ * stream is reached.
+ * @exception IOException if an I/O error occurs.
+ * @see java.io.FilterInputStream#in
+ */
+
+ public int read() throws IOException {
+ if (index >= bufsize) {
+ readPrefix();
+ if (!decode())
+ return -1;
+ index = 0; // reset index into buffer
+ }
+ return buffer[index++] & 0xff; // return lower byte
+ }
+
+ public int read(byte[] buf, int off, int len) throws IOException {
+ int i, c;
+ for (i = 0; i < len; i++) {
+ if ((c = read()) == -1) {
+ if (i == 0) // At end of stream, so we should
+ i = -1; // return -1, NOT 0.
+ break;
+ }
+ buf[off+i] = (byte)c;
+ }
+ return i;
+ }
+
+ public boolean markSupported() {
+ return false;
+ }
+
+ public int available() throws IOException {
+ // This is only an estimate, since in.available()
+ // might include CRLFs too ..
+ return ((in.available() * 3)/4 + (bufsize-index));
+ }
+
+ /**
+ * Get the "name" field from the prefix. This is meant to
+ * be the pathname of the decoded file
+ *
+ * @return name of decoded file
+ * @exception IOException if an I/O error occurs.
+ */
+ public String getName() throws IOException {
+ readPrefix();
+ return name;
+ }
+
+ /**
+ * Get the "mode" field from the prefix. This is the permission
+ * mode of the source file.
+ *
+ * @return permission mode of source file
+ * @exception IOException if an I/O error occurs.
+ */
+ public int getMode() throws IOException {
+ readPrefix();
+ return mode;
+ }
+
+ /**
+ * UUencoded streams start off with the line:
+ * "begin <mode> <filename>"
+ * Search for this prefix and gobble it up.
+ */
+ private void readPrefix() throws IOException {
+ if (gotPrefix) // got the prefix
+ return;
+
+ String s;
+ for (;;) {
+ // read till we get the prefix: "begin MODE FILENAME"
+ s = lin.readLine(); // NOTE: readLine consumes CRLF pairs too
+ if (s == null)
+ throw new IOException("UUDecoder error: No Begin");
+ if (s.regionMatches(true, 0, "begin", 0, 5)) {
+ try {
+ mode = Integer.parseInt(s.substring(6,9));
+ } catch (NumberFormatException ex) {
+ throw new IOException("UUDecoder error: " + ex.toString());
+ }
+ name = s.substring(10);
+ gotPrefix = true;
+ return;
+ }
+ }
+ }
+
+ private boolean decode() throws IOException {
+
+ if (gotEnd)
+ return false;
+ bufsize = 0;
+ String line;
+ do {
+ line = lin.readLine();
+
+ /*
+ * Improperly encoded data sometimes omits the zero length
+ * line that starts with a space character, we detect the
+ * following "end" line here.
+ */
+ if (line == null)
+ throw new IOException("Missing End");
+ if (line.regionMatches(true, 0, "end", 0, 3)) {
+ gotEnd = true;
+ return false;
+ }
+ } while (line.length() == 0);
+ int count = line.charAt(0);
+ if (count < ' ')
+ throw new IOException("Buffer format error");
+
+ /*
+ * The first character in a line is the number of original (not
+ * the encoded atoms) characters in the line. Note that all the
+ * code below has to handle the <SPACE> character that indicates
+ * end of encoded stream.
+ */
+ count = (count - ' ') & 0x3f;
+
+ if (count == 0) {
+ line = lin.readLine();
+ if (line == null || !line.regionMatches(true, 0, "end", 0, 3))
+ throw new IOException("Missing End");
+ gotEnd = true;
+ return false;
+ }
+
+ int need = ((count * 8)+5)/6;
+//System.out.println("count " + count + ", need " + need + ", len " + line.length());
+ if (line.length() < need + 1)
+ throw new IOException("Short buffer error");
+
+ int i = 1;
+ byte a, b;
+ /*
+ * A correct uuencoder always encodes 3 characters at a time, even
+ * if there aren't 3 characters left. But since some people out
+ * there have broken uuencoders we handle the case where they
+ * don't include these "unnecessary" characters.
+ */
+ while (bufsize < count) {
+ // continue decoding until we get 'count' decoded chars
+ a = (byte)((line.charAt(i++) - ' ') & 0x3f);
+ b = (byte)((line.charAt(i++) - ' ') & 0x3f);
+ buffer[bufsize++] = (byte)(((a << 2) & 0xfc) | ((b >>> 4) & 3));
+
+ if (bufsize < count) {
+ a = b;
+ b = (byte)((line.charAt(i++) - ' ') & 0x3f);
+ buffer[bufsize++] =
+ (byte)(((a << 4) & 0xf0) | ((b >>> 2) & 0xf));
+ }
+
+ if (bufsize < count) {
+ a = b;
+ b = (byte)((line.charAt(i++) - ' ') & 0x3f);
+ buffer[bufsize++] = (byte)(((a << 6) & 0xc0) | (b & 0x3f));
+ }
+ }
+ return true;
+ }
+
+ /*** begin TEST program *****
+ public static void main(String argv[]) throws Exception {
+ FileInputStream infile = new FileInputStream(argv[0]);
+ UUDecoderStream decoder = new UUDecoderStream(infile);
+ int c;
+
+ try {
+ while ((c = decoder.read()) != -1)
+ System.out.write(c);
+ System.out.flush();
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+ **** end TEST program ****/
+}