diff options
Diffstat (limited to 'src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPDecoderStream.java')
| -rw-r--r-- | src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPDecoderStream.java | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPDecoderStream.java b/src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPDecoderStream.java deleted file mode 100644 index b0e88d94..00000000 --- a/src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/QPDecoderStream.java +++ /dev/null @@ -1,198 +0,0 @@ -/* - * Copyright (c) 1997, 2012, 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. - */ - -/* - * @(#)QPDecoderStream.java 1.9 02/04/02 - */ - - - -package com.sun.xml.internal.messaging.saaj.packaging.mime.util; - -import java.io.*; - -/** - * This class implements a QP Decoder. 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 - */ - -public class QPDecoderStream extends FilterInputStream { - protected byte[] ba = new byte[2]; - protected int spaces = 0; - - /** - * Create a Quoted Printable decoder that decodes the specified - * input stream. - * @param in the input stream - */ - public QPDecoderStream(InputStream in) { - super(new PushbackInputStream(in, 2)); // pushback of size=2 - } - - /** - * 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 the next byte of data, or <code>-1</code> if the end of the - * stream is reached. - * @exception IOException if an I/O error occurs. - */ - public int read() throws IOException { - if (spaces > 0) { - // We have cached space characters, return one - spaces--; - return ' '; - } - - int c = in.read(); - - if (c == ' ') { - // Got space, keep reading till we get a non-space char - while ((c = in.read()) == ' ') - spaces++; - - if (c == '\r' || c == '\n' || c == -1) - // If the non-space char is CR/LF/EOF, the spaces we got - // so far is junk introduced during transport. Junk 'em. - spaces = 0; - else { - // The non-space char is NOT CR/LF, the spaces are valid. - ((PushbackInputStream)in).unread(c); - c = ' '; - } - return c; // return either <SPACE> or <CR/LF> - } - else if (c == '=') { - // QP Encoded atom. Decode the next two bytes - int a = in.read(); - - if (a == '\n') { - /* Hmm ... not really confirming QP encoding, but lets - * allow this as a LF terminated encoded line .. and - * consider this a soft linebreak and recurse to fetch - * the next char. - */ - return read(); - } else if (a == '\r') { - // Expecting LF. This forms a soft linebreak to be ignored. - int b = in.read(); - if (b != '\n') - /* Not really confirming QP encoding, but - * lets allow this as well. - */ - ((PushbackInputStream)in).unread(b); - return read(); - } else if (a == -1) { - // Not valid QP encoding, but we be nice and tolerant here ! - return -1; - } else { - ba[0] = (byte)a; - ba[1] = (byte)in.read(); - try { - return ASCIIUtility.parseInt(ba, 0, 2, 16); - } catch (NumberFormatException nex) { - /* - System.err.println( - "Illegal characters in QP encoded stream: " + - ASCIIUtility.toString(ba, 0, 2) - ); - */ - - ((PushbackInputStream)in).unread(ba); - return c; - } - } - } - return c; - } - - /** - * Reads up to <code>len</code> decoded bytes of data from this input stream - * into an array of bytes. This method blocks until some input is - * available. - * <p> - * - * @param buf the buffer into which the data is read. - * @param off the start offset of the data. - * @param len the maximum number of bytes read. - * @return the total number of bytes read into the buffer, or - * <code>-1</code> if there is no more data because the end of - * the stream has been reached. - * @exception IOException if an I/O error occurs. - */ - 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; - } - - /** - * Tests if this input stream supports marks. Currently this class - * does not support marks - */ - public boolean markSupported() { - return false; - } - - /** - * Returns the number of bytes that can be read from this input - * stream without blocking. The QP algorithm does not permit - * a priori knowledge of the number of bytes after decoding, so - * this method just invokes the <code>available</code> method - * of the original input stream. - */ - public int available() throws IOException { - // This is bogus ! We don't really know how much - // bytes are available *after* decoding - return in.available(); - } - - /**** begin TEST program - public static void main(String argv[]) throws Exception { - FileInputStream infile = new FileInputStream(argv[0]); - QPDecoderStream decoder = new QPDecoderStream(infile); - int c; - - while ((c = decoder.read()) != -1) - System.out.print((char)c); - System.out.println(); - } - *** end TEST program ****/ -} |