Removed depndence on sun.misc.BASE64Decoder

2 files changed, 396 insertions, 0 deletions

diff --git a/netx/net/sourceforge/jnlp/util/replacements/BASE64Decoder.java b/netx/net/sourceforge/jnlp/util/replacements/BASE64Decoder.java
new file mode 100644
index 0000000..525a89a
--- /dev/null
+++ b/netx/net/sourceforge/jnlp/util/replacements/BASE64Decoder.java
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 1995, 2000, 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.
+ */
+package net.sourceforge.jnlp.util.replacements;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.PushbackInputStream;
+
+/**
+ * This class implements a BASE64 Character decoder as specified in RFC1521.
+ *
+ * This RFC is part of the MIME specification which is published by the
+ * Internet Engineering Task Force (IETF). Unlike some other encoding
+ * schemes there is nothing in this encoding that tells the decoder
+ * where a buffer starts or stops, so to use it you will need to isolate
+ * your encoded data into a single chunk and then feed them this decoder.
+ * The simplest way to do that is to read all of the encoded data into a
+ * string and then use:
+ * <pre>
+ *      byte    mydata[];
+ *      BASE64Decoder base64 = new BASE64Decoder();
+ *
+ *      mydata = base64.decodeBuffer(bufferString);
+ * </pre>
+ * This will decode the String in <i>bufferString</i> and give you an array
+ * of bytes in the array <i>myData</i>.
+ *
+ * On errors, this class throws a CEFormatException with the following detail
+ * strings:
+ * <pre>
+ *    "BASE64Decoder: Not enough bytes for an atom."
+ * </pre>
+ *
+ * @author      Chuck McManis
+ * @see         CharacterEncoder
+ * @see         BASE64Decoder
+ */
+
+public class BASE64Decoder extends CharacterDecoder {
+
+    private static class CEFormatException extends IOException {
+       public CEFormatException(String s) {
+                super(s);
+        }
+    }
+    
+    /** This class has 4 bytes per atom */
+    @Override
+    protected int bytesPerAtom() {
+        return (4);
+    }
+
+    /** Any multiple of 4 will do, 72 might be common */
+    @Override
+    protected int bytesPerLine() {
+        return (72);
+    }
+
+    /**
+     * This character array provides the character to value map
+     * based on RFC1521.
+     */
+    private final static char pem_array[] = {
+        //       0   1   2   3   4   5   6   7
+                '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 final static byte pem_convert_array[] = new byte[256];
+
+    static {
+        for (int i = 0; i < 255; i++) {
+            pem_convert_array[i] = -1;
+        }
+        for (int i = 0; i < pem_array.length; i++) {
+            pem_convert_array[pem_array[i]] = (byte) i;
+        }
+    }
+
+    byte decode_buffer[] = new byte[4];
+
+    /**
+     * Decode one BASE64 atom into 1, 2, or 3 bytes of data.
+     */
+    @Override
+    protected void decodeAtom(PushbackInputStream inStream, OutputStream outStream, int rem)
+        throws java.io.IOException
+    {
+        int     i;
+        byte    a = -1, b = -1, c = -1, d = -1;
+
+        if (rem < 2) {
+            throw new CEFormatException("BASE64Decoder: Not enough bytes for an atom.");
+        }
+        do {
+            i = inStream.read();
+            if (i == -1) {
+                throw new CEStreamExhausted();
+            }
+        } while (i == '\n' || i == '\r');
+        decode_buffer[0] = (byte) i;
+
+        i = readFully(inStream, decode_buffer, 1, rem-1);
+        if (i == -1) {
+            throw new CEStreamExhausted();
+        }
+
+        if (rem > 3 && decode_buffer[3] == '=') {
+            rem = 3;
+        }
+        if (rem > 2 && decode_buffer[2] == '=') {
+            rem = 2;
+        }
+        switch (rem) {
+        case 4:
+            d = pem_convert_array[decode_buffer[3] & 0xff];
+            // NOBREAK
+        case 3:
+            c = pem_convert_array[decode_buffer[2] & 0xff];
+            // NOBREAK
+        case 2:
+            b = pem_convert_array[decode_buffer[1] & 0xff];
+            a = pem_convert_array[decode_buffer[0] & 0xff];
+            break;
+        }
+
+        switch (rem) {
+        case 2:
+            outStream.write( (byte)(((a << 2) & 0xfc) | ((b >>> 4) & 3)) );
+            break;
+        case 3:
+            outStream.write( (byte) (((a << 2) & 0xfc) | ((b >>> 4) & 3)) );
+            outStream.write( (byte) (((b << 4) & 0xf0) | ((c >>> 2) & 0xf)) );
+            break;
+        case 4:
+            outStream.write( (byte) (((a << 2) & 0xfc) | ((b >>> 4) & 3)) );
+            outStream.write( (byte) (((b << 4) & 0xf0) | ((c >>> 2) & 0xf)) );
+            outStream.write( (byte) (((c << 6) & 0xc0) | (d  & 0x3f)) );
+            break;
+        }
+    }
+}
diff --git a/netx/net/sourceforge/jnlp/util/replacements/CharacterDecoder.java b/netx/net/sourceforge/jnlp/util/replacements/CharacterDecoder.java
new file mode 100644
index 0000000..a46ea1e
--- /dev/null
+++ b/netx/net/sourceforge/jnlp/util/replacements/CharacterDecoder.java
@@ -0,0 +1,226 @@
+/*
+ * Copyright (c) 1995, 2004, 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.
+ */
+
+package net.sourceforge.jnlp.util.replacements;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.PushbackInputStream;
+import java.nio.ByteBuffer;
+
+/**
+ * This class defines the decoding half of character encoders.
+ * A character decoder is an algorithim for transforming 8 bit
+ * binary data that has been encoded into text by a character
+ * encoder, back into original binary form.
+ *
+ * The character encoders, in general, have been structured
+ * around a central theme that binary data can be encoded into
+ * text that has the form:
+ *
+ * <pre>
+ *      [Buffer Prefix]
+ *      [Line Prefix][encoded data atoms][Line Suffix]
+ *      [Buffer Suffix]
+ * </pre>
+ *
+ * Of course in the simplest encoding schemes, the buffer has no
+ * distinct prefix of suffix, however all have some fixed relationship
+ * between the text in an 'atom' and the binary data itself.
+ *
+ * In the CharacterEncoder and CharacterDecoder classes, one complete
+ * chunk of data is referred to as a <i>buffer</i>. Encoded buffers
+ * are all text, and decoded buffers (sometimes just referred to as
+ * buffers) are binary octets.
+ *
+ * To create a custom decoder, you must, at a minimum,  overide three
+ * abstract methods in this class.
+ * <DL>
+ * <DD>bytesPerAtom which tells the decoder how many bytes to
+ * expect from decodeAtom
+ * <DD>decodeAtom which decodes the bytes sent to it as text.
+ * <DD>bytesPerLine which tells the encoder the maximum number of
+ * bytes per line.
+ * </DL>
+ *
+ * In general, the character decoders return error in the form of a
+ * CEFormatException. The syntax of the detail string is
+ * <pre>
+ *      DecoderClassName: Error message.
+ * </pre>
+ *
+ * Several useful decoders have already been written and are
+ * referenced in the See Also list below.
+ *
+ * @author      Chuck McManis
+ * @see         CEFormatException
+ * @see         CharacterEncoder
+ * @see         UCDecoder
+ * @see         UUDecoder
+ * @see         BASE64Decoder
+ */
+
+public abstract class CharacterDecoder {
+    
+    /** This exception is thrown when EOF is reached */
+    protected static class CEStreamExhausted extends IOException { };
+
+    /** Return the number of bytes per atom of decoding */
+    abstract protected int bytesPerAtom();
+
+    /** Return the maximum number of bytes that can be encoded per line */
+    abstract protected int bytesPerLine();
+
+    /** decode the beginning of the buffer, by default this is a NOP. */
+    protected void decodeBufferPrefix(PushbackInputStream aStream, OutputStream bStream) throws IOException { }
+
+    /** decode the buffer suffix, again by default it is a NOP. */
+    protected void decodeBufferSuffix(PushbackInputStream aStream, OutputStream bStream) throws IOException { }
+
+    /**
+     * This method should return, if it knows, the number of bytes
+     * that will be decoded. Many formats such as uuencoding provide
+     * this information. By default we return the maximum bytes that
+     * could have been encoded on the line.
+     */
+    protected int decodeLinePrefix(PushbackInputStream aStream, OutputStream bStream) throws IOException {
+        return (bytesPerLine());
+    }
+
+    /**
+     * This method post processes the line, if there are error detection
+     * or correction codes in a line, they are generally processed by
+     * this method. The simplest version of this method looks for the
+     * (newline) character.
+     */
+    protected void decodeLineSuffix(PushbackInputStream aStream, OutputStream bStream) throws IOException { }
+
+    /**
+     * This method does an actual decode. It takes the decoded bytes and
+     * writes them to the OutputStream. The integer <i>l</i> tells the
+     * method how many bytes are required. This is always <= bytesPerAtom().
+     */
+    protected void decodeAtom(PushbackInputStream aStream, OutputStream bStream, int l) throws IOException {
+        throw new CEStreamExhausted();
+    }
+
+    /**
+     * This method works around the bizarre semantics of BufferedInputStream's
+     * read method.
+     */
+    protected int readFully(InputStream in, byte buffer[], int offset, int len)
+        throws java.io.IOException {
+        for (int i = 0; i < len; i++) {
+            int q = in.read();
+            if (q == -1) {
+                return ((i == 0) ? -1 : i);
+            }
+            buffer[i+offset] = (byte)q;
+        }
+        return len;
+    }
+
+    /**
+     * Decode the text from the InputStream and write the decoded
+     * octets to the OutputStream. This method runs until the stream
+     * is exhausted.
+     * @exception CEFormatException An error has occured while decoding
+     * @exception CEStreamExhausted The input stream is unexpectedly out of data
+     */
+    public void decodeBuffer(InputStream aStream, OutputStream bStream) throws IOException {
+        int     i;
+        int     totalBytes = 0;
+
+        PushbackInputStream ps = new PushbackInputStream (aStream);
+        decodeBufferPrefix(ps, bStream);
+        while (true) {
+            int length;
+
+            try {
+                length = decodeLinePrefix(ps, bStream);
+                for (i = 0; (i+bytesPerAtom()) < length; i += bytesPerAtom()) {
+                    decodeAtom(ps, bStream, bytesPerAtom());
+                    totalBytes += bytesPerAtom();
+                }
+                if ((i + bytesPerAtom()) == length) {
+                    decodeAtom(ps, bStream, bytesPerAtom());
+                    totalBytes += bytesPerAtom();
+                } else {
+                    decodeAtom(ps, bStream, length - i);
+                    totalBytes += (length - i);
+                }
+                decodeLineSuffix(ps, bStream);
+            } catch (CEStreamExhausted e) {
+                break;
+            }
+        }
+        decodeBufferSuffix(ps, bStream);
+    }
+
+    /**
+     * Alternate decode interface that takes a String containing the encoded
+     * buffer and returns a byte array containing the data.
+     * @exception CEFormatException An error has occured while decoding
+     */
+    public byte decodeBuffer(String inputString)[] throws IOException {
+        byte    inputBuffer[] = new byte[inputString.length()];
+        ByteArrayInputStream inStream;
+        ByteArrayOutputStream outStream;
+
+        inputString.getBytes(0, inputString.length(), inputBuffer, 0);
+        inStream = new ByteArrayInputStream(inputBuffer);
+        outStream = new ByteArrayOutputStream();
+        decodeBuffer(inStream, outStream);
+        return (outStream.toByteArray());
+    }
+
+    /**
+     * Decode the contents of the inputstream into a buffer.
+     */
+    public byte decodeBuffer(InputStream in)[] throws IOException {
+        ByteArrayOutputStream outStream = new ByteArrayOutputStream();
+        decodeBuffer(in, outStream);
+        return (outStream.toByteArray());
+    }
+
+    /**
+     * Decode the contents of the String into a ByteBuffer.
+     */
+    public ByteBuffer decodeBufferToByteBuffer(String inputString)
+        throws IOException {
+        return ByteBuffer.wrap(decodeBuffer(inputString));
+    }
+
+    /**
+     * Decode the contents of the inputStream into a ByteBuffer.
+     */
+    public ByteBuffer decodeBufferToByteBuffer(InputStream in)
+        throws IOException {
+        return ByteBuffer.wrap(decodeBuffer(in));
+    }
+}