jaxws/src/java.xml.soap/share/classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/UUDecoderStream.java
changeset 28641 6b05689b7445
parent 28640 01e4ca94fb0d
parent 28505 7574ac3bb6c1
child 28642 a42fefc69922
--- a/jaxws/src/java.xml.soap/share/classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/UUDecoderStream.java	Thu Jan 15 11:30:13 2015 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,257 +0,0 @@
-/*
- * 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 ****/
-}