--- /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/BASE64EncoderStream.java Sun Aug 17 15:52:15 2014 +0100
@@ -0,0 +1,244 @@
+/*
+ * 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.
+ */
+
+/*
+ * @(#)BASE64EncoderStream.java 1.6 02/03/27
+ */
+
+
+
+package com.sun.xml.internal.messaging.saaj.packaging.mime.util;
+
+import java.io.*;
+
+/**
+ * This class implements a BASE64 Encoder. It is implemented as
+ * a FilterOutputStream, so one can just wrap this class around
+ * any output stream and write bytes into this filter. The Encoding
+ * is done as the bytes are written out.
+ *
+ * @author John Mani
+ * @author Bill Shannon
+ */
+
+public class BASE64EncoderStream extends FilterOutputStream {
+ private byte[] buffer; // cache of bytes that are yet to be encoded
+ private int bufsize = 0; // size of the cache
+ private int count = 0; // number of bytes that have been output
+ private int bytesPerLine; // number of bytes per line
+
+ /**
+ * Create a BASE64 encoder that encodes the specified input stream
+ * @param out the output stream
+ * @param bytesPerLine number of bytes per line. The encoder inserts
+ * a CRLF sequence after the specified number of bytes
+ */
+ public BASE64EncoderStream(OutputStream out, int bytesPerLine) {
+ super(out);
+ buffer = new byte[3];
+ this.bytesPerLine = bytesPerLine;
+ }
+
+ /**
+ * Create a BASE64 encoder that encodes the specified input stream.
+ * Inserts the CRLF sequence after outputting 76 bytes.
+ * @param out the output stream
+ */
+ public BASE64EncoderStream(OutputStream out) {
+ this(out, 76);
+ }
+
+ /**
+ * Encodes <code>len</code> bytes from the specified
+ * <code>byte</code> array starting at offset <code>off</code> to
+ * this output stream.
+ *
+ * @param b the data.
+ * @param off the start offset in the data.
+ * @param len the number of bytes to write.
+ * @exception IOException if an I/O error occurs.
+ */
+ public void write(byte[] b, int off, int len) throws IOException {
+ for (int i = 0; i < len; i++)
+ write(b[off + i]);
+ }
+
+ /**
+ * Encodes <code>b.length</code> bytes to this output stream.
+ * @param b the data to be written.
+ * @exception IOException if an I/O error occurs.
+ */
+ public void write(byte[] b) throws IOException {
+ write(b, 0, b.length);
+ }
+
+ /**
+ * Encodes the specified <code>byte</code> to this output stream.
+ * @param c the <code>byte</code>.
+ * @exception IOException if an I/O error occurs.
+ */
+ public void write(int c) throws IOException {
+ buffer[bufsize++] = (byte)c;
+ if (bufsize == 3) { // Encoding unit = 3 bytes
+ encode();
+ bufsize = 0;
+ }
+ }
+
+ /**
+ * Flushes this output stream and forces any buffered output bytes
+ * to be encoded out to the stream.
+ * @exception IOException if an I/O error occurs.
+ */
+ public void flush() throws IOException {
+ if (bufsize > 0) { // If there's unencoded characters in the buffer ..
+ encode(); // .. encode them
+ bufsize = 0;
+ }
+ out.flush();
+ }
+
+ /**
+ * Forces any buffered output bytes to be encoded out to the stream
+ * and closes this output stream
+ */
+ public void close() throws IOException {
+ flush();
+ out.close();
+ }
+
+ /** This array maps the characters to their 6 bit values */
+ private final static char pem_array[] = {
+ 'A','B','C','D','E','F','G','H', // 0
+ 'I','J','K','L','M','N','O','P', // 1
+ 'Q','R','S','T','U','V','W','X', // 2
+ 'Y','Z','a','b','c','d','e','f', // 3
+ 'g','h','i','j','k','l','m','n', // 4
+ 'o','p','q','r','s','t','u','v', // 5
+ 'w','x','y','z','0','1','2','3', // 6
+ '4','5','6','7','8','9','+','/' // 7
+ };
+
+ private void encode() throws IOException {
+ // If writing out this encoded unit will cause overflow,
+ // start a new line.
+ if (count + 4 > bytesPerLine) {
+ out.write('\r');
+ out.write('\n');
+ count = 0;
+ }
+
+ byte a, b, c;
+ if (bufsize == 1) {
+ a = buffer[0];
+ b = 0;
+ c = 0;
+ out.write(pem_array[(a >>> 2) & 0x3F]);
+ out.write(pem_array[((a << 4) & 0x30) + ((b >>> 4) & 0xf)]);
+ out.write('='); // pad character
+ out.write('='); // pad character
+ } else if (bufsize == 2) {
+ a = buffer[0];
+ b = buffer[1];
+ c = 0;
+ out.write(pem_array[(a >>> 2) & 0x3F]);
+ out.write(pem_array[((a << 4) & 0x30) + ((b >>> 4) & 0xf)]);
+ out.write(pem_array[((b << 2) & 0x3c) + ((c >>> 6) & 0x3)]);
+ out.write('='); // pad character
+ } else {
+ a = buffer[0];
+ b = buffer[1];
+ c = buffer[2];
+ out.write(pem_array[(a >>> 2) & 0x3F]);
+ out.write(pem_array[((a << 4) & 0x30) + ((b >>> 4) & 0xf)]);
+ out.write(pem_array[((b << 2) & 0x3c) + ((c >>> 6) & 0x3)]);
+ out.write(pem_array[c & 0x3F]);
+ }
+
+ // increment count
+ count += 4;
+ }
+
+ /**
+ * Base64 encode a byte array. No line breaks are inserted.
+ * This method is suitable for short strings, such as those
+ * in the IMAP AUTHENTICATE protocol, but not to encode the
+ * entire content of a MIME part.
+ */
+ public static byte[] encode(byte[] inbuf) {
+ if (inbuf.length == 0)
+ return inbuf;
+ byte[] outbuf = new byte[((inbuf.length + 2) / 3) * 4];
+ int inpos = 0, outpos = 0;
+ int size = inbuf.length;
+ while (size > 0) {
+ byte a, b, c;
+ if (size == 1) {
+ a = inbuf[inpos++];
+ b = 0;
+ c = 0;
+ outbuf[outpos++] = (byte)pem_array[(a >>> 2) & 0x3F];
+ outbuf[outpos++] =
+ (byte)pem_array[((a << 4) & 0x30) + ((b >>> 4) & 0xf)];
+ outbuf[outpos++] = (byte)'='; // pad character
+ outbuf[outpos++] = (byte)'='; // pad character
+ } else if (size == 2) {
+ a = inbuf[inpos++];
+ b = inbuf[inpos++];
+ c = 0;
+ outbuf[outpos++] = (byte)pem_array[(a >>> 2) & 0x3F];
+ outbuf[outpos++] =
+ (byte)pem_array[((a << 4) & 0x30) + ((b >>> 4) & 0xf)];
+ outbuf[outpos++] =
+ (byte)pem_array[((b << 2) & 0x3c) + ((c >>> 6) & 0x3)];
+ outbuf[outpos++] = (byte)'='; // pad character
+ } else {
+ a = inbuf[inpos++];
+ b = inbuf[inpos++];
+ c = inbuf[inpos++];
+ outbuf[outpos++] = (byte)pem_array[(a >>> 2) & 0x3F];
+ outbuf[outpos++] =
+ (byte)pem_array[((a << 4) & 0x30) + ((b >>> 4) & 0xf)];
+ outbuf[outpos++] =
+ (byte)pem_array[((b << 2) & 0x3c) + ((c >>> 6) & 0x3)];
+ outbuf[outpos++] = (byte)pem_array[c & 0x3F];
+ }
+ size -= 3;
+ }
+ return outbuf;
+ }
+
+ /*** begin TEST program
+ public static void main(String argv[]) throws Exception {
+ FileInputStream infile = new FileInputStream(argv[0]);
+ BASE64EncoderStream encoder = new BASE64EncoderStream(System.out);
+ int c;
+
+ while ((c = infile.read()) != -1)
+ encoder.write(c);
+ encoder.close();
+ }
+ *** end TEST program **/
+}