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From bsny...@apache.org
Subject svn commit: r375366 - in /geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util: ./ Base64.java Base64Encoder.java Encoder.java Hex.java HexEncoder.java XText.java XTextEncoder.java
Date Mon, 06 Feb 2006 20:48:31 GMT
Author: bsnyder
Date: Mon Feb  6 12:48:29 2006
New Revision: 375366

URL: http://svn.apache.org/viewcvs?rev=375366&view=rev
Log:
Forgot to commit the rest of the patch for GERONIMO-1593.

Added:
    geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/
    geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64.java
  (with props)
    geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64Encoder.java
  (with props)
    geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Encoder.java
  (with props)
    geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Hex.java
  (with props)
    geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/HexEncoder.java
  (with props)
    geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XText.java
  (with props)
    geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XTextEncoder.java
  (with props)

Added: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64.java
URL: http://svn.apache.org/viewcvs/geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64.java?rev=375366&view=auto
==============================================================================
--- geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64.java
(added)
+++ geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64.java
Mon Feb  6 12:48:29 2006
@@ -0,0 +1,135 @@
+/**
+ *
+ * Copyright 2003-2004 The Apache Software Foundation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.geronimo.mail.util;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class Base64
+{
+    private static final Encoder encoder = new Base64Encoder();
+
+    /**
+     * encode the input data producing a base 64 encoded byte array.
+     *
+     * @return a byte array containing the base 64 encoded data.
+     */
+    public static byte[] encode(
+        byte[]    data)
+    {
+        ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+
+        try
+        {
+            encoder.encode(data, 0, data.length, bOut);
+        }
+        catch (IOException e)
+        {
+            throw new RuntimeException("exception encoding base64 string: " + e);
+        }
+
+        return bOut.toByteArray();
+    }
+
+    /**
+     * Encode the byte data to base 64 writing it to the given output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public static int encode(
+        byte[]                data,
+        OutputStream    out)
+        throws IOException
+    {
+        return encoder.encode(data, 0, data.length, out);
+    }
+
+    /**
+     * Encode the byte data to base 64 writing it to the given output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public static int encode(
+        byte[]                data,
+        int                    off,
+        int                    length,
+        OutputStream    out)
+        throws IOException
+    {
+        return encoder.encode(data, off, length, out);
+    }
+
+    /**
+     * decode the base 64 encoded input data. It is assumed the input data is valid.
+     *
+     * @return a byte array representing the decoded data.
+     */
+    public static byte[] decode(
+        byte[]    data)
+    {
+        ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+
+        try
+        {
+            encoder.decode(data, 0, data.length, bOut);
+        }
+        catch (IOException e)
+        {
+            throw new RuntimeException("exception decoding base64 string: " + e);
+        }
+
+        return bOut.toByteArray();
+    }
+
+    /**
+     * decode the base 64 encoded String data - whitespace will be ignored.
+     *
+     * @return a byte array representing the decoded data.
+     */
+    public static byte[] decode(
+        String    data)
+    {
+        ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+
+        try
+        {
+            encoder.decode(data, bOut);
+        }
+        catch (IOException e)
+        {
+            throw new RuntimeException("exception decoding base64 string: " + e);
+        }
+
+        return bOut.toByteArray();
+    }
+
+    /**
+     * decode the base 64 encoded String data writing it to the given output stream,
+     * whitespace characters will be ignored.
+     *
+     * @return the number of bytes produced.
+     */
+    public static int decode(
+        String                data,
+        OutputStream    out)
+        throws IOException
+    {
+        return encoder.decode(data, out);
+    }
+}

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    svn:keywords = Date Author Id Revision HeadURL

Propchange: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64.java
------------------------------------------------------------------------------
    svn:mime-type = text/plain

Added: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64Encoder.java
URL: http://svn.apache.org/viewcvs/geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64Encoder.java?rev=375366&view=auto
==============================================================================
--- geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64Encoder.java
(added)
+++ geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64Encoder.java
Mon Feb  6 12:48:29 2006
@@ -0,0 +1,340 @@
+/**
+ *
+ * Copyright 2003-2004 The Apache Software Foundation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.geronimo.mail.util;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class Base64Encoder
+    implements Encoder
+{
+    protected final byte[] encodingTable =
+        {
+            (byte)'A', (byte)'B', (byte)'C', (byte)'D', (byte)'E', (byte)'F', (byte)'G',
+            (byte)'H', (byte)'I', (byte)'J', (byte)'K', (byte)'L', (byte)'M', (byte)'N',
+            (byte)'O', (byte)'P', (byte)'Q', (byte)'R', (byte)'S', (byte)'T', (byte)'U',
+            (byte)'V', (byte)'W', (byte)'X', (byte)'Y', (byte)'Z',
+            (byte)'a', (byte)'b', (byte)'c', (byte)'d', (byte)'e', (byte)'f', (byte)'g',
+            (byte)'h', (byte)'i', (byte)'j', (byte)'k', (byte)'l', (byte)'m', (byte)'n',
+            (byte)'o', (byte)'p', (byte)'q', (byte)'r', (byte)'s', (byte)'t', (byte)'u',
+            (byte)'v',
+            (byte)'w', (byte)'x', (byte)'y', (byte)'z',
+            (byte)'0', (byte)'1', (byte)'2', (byte)'3', (byte)'4', (byte)'5', (byte)'6',
+            (byte)'7', (byte)'8', (byte)'9',
+            (byte)'+', (byte)'/'
+        };
+
+    protected byte    padding = (byte)'=';
+
+    /*
+     * set up the decoding table.
+     */
+    protected final byte[] decodingTable = new byte[128];
+
+    protected void initialiseDecodingTable()
+    {
+        for (int i = 0; i < encodingTable.length; i++)
+        {
+            decodingTable[encodingTable[i]] = (byte)i;
+        }
+    }
+
+    public Base64Encoder()
+    {
+        initialiseDecodingTable();
+    }
+
+    /**
+     * encode the input data producing a base 64 output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public int encode(
+        byte[]                data,
+        int                    off,
+        int                    length,
+        OutputStream    out)
+        throws IOException
+    {
+        int modulus = length % 3;
+        int dataLength = (length - modulus);
+        int a1, a2, a3;
+
+        for (int i = off; i < off + dataLength; i += 3)
+        {
+            a1 = data[i] & 0xff;
+            a2 = data[i + 1] & 0xff;
+            a3 = data[i + 2] & 0xff;
+
+            out.write(encodingTable[(a1 >>> 2) & 0x3f]);
+            out.write(encodingTable[((a1 << 4) | (a2 >>> 4)) & 0x3f]);
+            out.write(encodingTable[((a2 << 2) | (a3 >>> 6)) & 0x3f]);
+            out.write(encodingTable[a3 & 0x3f]);
+        }
+
+        /*
+         * process the tail end.
+         */
+        int    b1, b2, b3;
+        int    d1, d2;
+
+        switch (modulus)
+        {
+        case 0:        /* nothing left to do */
+            break;
+        case 1:
+            d1 = data[off + dataLength] & 0xff;
+            b1 = (d1 >>> 2) & 0x3f;
+            b2 = (d1 << 4) & 0x3f;
+
+            out.write(encodingTable[b1]);
+            out.write(encodingTable[b2]);
+            out.write(padding);
+            out.write(padding);
+            break;
+        case 2:
+            d1 = data[off + dataLength] & 0xff;
+            d2 = data[off + dataLength + 1] & 0xff;
+
+            b1 = (d1 >>> 2) & 0x3f;
+            b2 = ((d1 << 4) | (d2 >>> 4)) & 0x3f;
+            b3 = (d2 << 2) & 0x3f;
+
+            out.write(encodingTable[b1]);
+            out.write(encodingTable[b2]);
+            out.write(encodingTable[b3]);
+            out.write(padding);
+            break;
+        }
+
+        return (dataLength / 3) * 4 + ((modulus == 0) ? 0 : 4);
+    }
+
+    private boolean ignore(
+        char    c)
+    {
+        return (c == '\n' || c =='\r' || c == '\t' || c == ' ');
+    }
+
+    /**
+     * decode the base 64 encoded byte data writing it to the given output stream,
+     * whitespace characters will be ignored.
+     *
+     * @return the number of bytes produced.
+     */
+    public int decode(
+        byte[]                data,
+        int                    off,
+        int                    length,
+        OutputStream    out)
+        throws IOException
+    {
+        byte[]    bytes;
+        byte    b1, b2, b3, b4;
+        int        outLen = 0;
+
+        int        end = off + length;
+
+        while (end > 0)
+        {
+            if (!ignore((char)data[end - 1]))
+            {
+                break;
+            }
+
+            end--;
+        }
+
+        int  i = off;
+        int  finish = end - 4;
+
+        while (i < finish)
+        {
+            while ((i < finish) && ignore((char)data[i]))
+            {
+                i++;
+            }
+
+            b1 = decodingTable[data[i++]];
+
+            while ((i < finish) && ignore((char)data[i]))
+            {
+                i++;
+            }
+
+            b2 = decodingTable[data[i++]];
+
+            while ((i < finish) && ignore((char)data[i]))
+            {
+                i++;
+            }
+
+            b3 = decodingTable[data[i++]];
+
+            while ((i < finish) && ignore((char)data[i]))
+            {
+                i++;
+            }
+
+            b4 = decodingTable[data[i++]];
+
+            out.write((b1 << 2) | (b2 >> 4));
+            out.write((b2 << 4) | (b3 >> 2));
+            out.write((b3 << 6) | b4);
+
+            outLen += 3;
+        }
+
+        if (data[end - 2] == padding)
+        {
+            b1 = decodingTable[data[end - 4]];
+            b2 = decodingTable[data[end - 3]];
+
+            out.write((b1 << 2) | (b2 >> 4));
+
+            outLen += 1;
+        }
+        else if (data[end - 1] == padding)
+        {
+            b1 = decodingTable[data[end - 4]];
+            b2 = decodingTable[data[end - 3]];
+            b3 = decodingTable[data[end - 2]];
+
+            out.write((b1 << 2) | (b2 >> 4));
+            out.write((b2 << 4) | (b3 >> 2));
+
+            outLen += 2;
+        }
+        else
+        {
+            b1 = decodingTable[data[end - 4]];
+            b2 = decodingTable[data[end - 3]];
+            b3 = decodingTable[data[end - 2]];
+            b4 = decodingTable[data[end - 1]];
+
+            out.write((b1 << 2) | (b2 >> 4));
+            out.write((b2 << 4) | (b3 >> 2));
+            out.write((b3 << 6) | b4);
+
+            outLen += 3;
+        }
+
+        return outLen;
+    }
+
+    /**
+     * decode the base 64 encoded String data writing it to the given output stream,
+     * whitespace characters will be ignored.
+     *
+     * @return the number of bytes produced.
+     */
+    public int decode(
+        String                data,
+        OutputStream    out)
+        throws IOException
+    {
+        byte[]    bytes;
+        byte    b1, b2, b3, b4;
+        int        length = 0;
+
+        int        end = data.length();
+
+        while (end > 0)
+        {
+            if (!ignore(data.charAt(end - 1)))
+            {
+                break;
+            }
+
+            end--;
+        }
+
+        int    i = 0;
+        int   finish = end - 4;
+
+        while (i < finish)
+        {
+            while ((i < finish) && ignore(data.charAt(i)))
+            {
+                i++;
+            }
+
+            b1 = decodingTable[data.charAt(i++)];
+
+            while ((i < finish) && ignore(data.charAt(i)))
+            {
+                i++;
+            }
+            b2 = decodingTable[data.charAt(i++)];
+
+            while ((i < finish) && ignore(data.charAt(i)))
+            {
+                i++;
+            }
+            b3 = decodingTable[data.charAt(i++)];
+
+            while ((i < finish) && ignore(data.charAt(i)))
+            {
+                i++;
+            }
+            b4 = decodingTable[data.charAt(i++)];
+
+            out.write((b1 << 2) | (b2 >> 4));
+            out.write((b2 << 4) | (b3 >> 2));
+            out.write((b3 << 6) | b4);
+
+            length += 3;
+        }
+
+        if (data.charAt(end - 2) == padding)
+        {
+            b1 = decodingTable[data.charAt(end - 4)];
+            b2 = decodingTable[data.charAt(end - 3)];
+
+            out.write((b1 << 2) | (b2 >> 4));
+
+            length += 1;
+        }
+        else if (data.charAt(end - 1) == padding)
+        {
+            b1 = decodingTable[data.charAt(end - 4)];
+            b2 = decodingTable[data.charAt(end - 3)];
+            b3 = decodingTable[data.charAt(end - 2)];
+
+            out.write((b1 << 2) | (b2 >> 4));
+            out.write((b2 << 4) | (b3 >> 2));
+
+            length += 2;
+        }
+        else
+        {
+            b1 = decodingTable[data.charAt(end - 4)];
+            b2 = decodingTable[data.charAt(end - 3)];
+            b3 = decodingTable[data.charAt(end - 2)];
+            b4 = decodingTable[data.charAt(end - 1)];
+
+            out.write((b1 << 2) | (b2 >> 4));
+            out.write((b2 << 4) | (b3 >> 2));
+            out.write((b3 << 6) | b4);
+
+            length += 3;
+        }
+
+        return length;
+    }
+}

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Propchange: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Base64Encoder.java
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    svn:mime-type = text/plain

Added: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Encoder.java
URL: http://svn.apache.org/viewcvs/geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Encoder.java?rev=375366&view=auto
==============================================================================
--- geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Encoder.java
(added)
+++ geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Encoder.java
Mon Feb  6 12:48:29 2006
@@ -0,0 +1,34 @@
+/**
+ *
+ * Copyright 2003-2004 The Apache Software Foundation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.geronimo.mail.util;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+/**
+ * Encode and decode byte arrays (typically from binary to 7-bit ASCII
+ * encodings).
+ */
+public interface Encoder
+{
+    int encode(byte[] data, int off, int length, OutputStream out) throws IOException;
+
+    int decode(byte[] data, int off, int length, OutputStream out) throws IOException;
+
+    int decode(String data, OutputStream out) throws IOException;
+}

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Propchange: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Encoder.java
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Added: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Hex.java
URL: http://svn.apache.org/viewcvs/geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Hex.java?rev=375366&view=auto
==============================================================================
--- geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Hex.java
(added)
+++ geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/Hex.java
Mon Feb  6 12:48:29 2006
@@ -0,0 +1,148 @@
+/**
+ *
+ * Copyright 2003-2004 The Apache Software Foundation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.geronimo.mail.util;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class Hex
+{
+    private static final Encoder encoder = new HexEncoder();
+
+    /**
+     * encode the input data producing a Hex encoded byte array.
+     *
+     * @return a byte array containing the Hex encoded data.
+     */
+    public static byte[] encode(
+        byte[]    data)
+    {
+        return encode(data, 0, data.length);
+    }
+
+    /**
+     * encode the input data producing a Hex encoded byte array.
+     *
+     * @return a byte array containing the Hex encoded data.
+     */
+    public static byte[] encode(
+        byte[]    data,
+        int       off,
+        int       length)
+    {
+        ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+
+        try
+        {
+            encoder.encode(data, off, length, bOut);
+        }
+        catch (IOException e)
+        {
+            throw new RuntimeException("exception encoding Hex string: " + e);
+        }
+
+        return bOut.toByteArray();
+    }
+
+    /**
+     * Hex encode the byte data writing it to the given output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public static int encode(
+        byte[]         data,
+        OutputStream   out)
+        throws IOException
+    {
+        return encoder.encode(data, 0, data.length, out);
+    }
+
+    /**
+     * Hex encode the byte data writing it to the given output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public static int encode(
+        byte[]         data,
+        int            off,
+        int            length,
+        OutputStream   out)
+        throws IOException
+    {
+        return encoder.encode(data, 0, data.length, out);
+    }
+
+    /**
+     * decode the Hex encoded input data. It is assumed the input data is valid.
+     *
+     * @return a byte array representing the decoded data.
+     */
+    public static byte[] decode(
+        byte[]    data)
+    {
+        ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+
+        try
+        {
+            encoder.decode(data, 0, data.length, bOut);
+        }
+        catch (IOException e)
+        {
+            throw new RuntimeException("exception decoding Hex string: " + e);
+        }
+
+        return bOut.toByteArray();
+    }
+
+    /**
+     * decode the Hex encoded String data - whitespace will be ignored.
+     *
+     * @return a byte array representing the decoded data.
+     */
+    public static byte[] decode(
+        String    data)
+    {
+        ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+
+        try
+        {
+            encoder.decode(data, bOut);
+        }
+        catch (IOException e)
+        {
+            throw new RuntimeException("exception decoding Hex string: " + e);
+        }
+
+        return bOut.toByteArray();
+    }
+
+    /**
+     * decode the Hex encoded String data writing it to the given output stream,
+     * whitespace characters will be ignored.
+     *
+     * @return the number of bytes produced.
+     */
+    public static int decode(
+        String          data,
+        OutputStream    out)
+        throws IOException
+    {
+        return encoder.decode(data, out);
+    }
+}

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Added: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/HexEncoder.java
URL: http://svn.apache.org/viewcvs/geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/HexEncoder.java?rev=375366&view=auto
==============================================================================
--- geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/HexEncoder.java
(added)
+++ geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/HexEncoder.java
Mon Feb  6 12:48:29 2006
@@ -0,0 +1,191 @@
+/**
+ *
+ * Copyright 2003-2004 The Apache Software Foundation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.geronimo.mail.util;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class HexEncoder
+    implements Encoder
+{
+    protected final byte[] encodingTable =
+        {
+            (byte)'0', (byte)'1', (byte)'2', (byte)'3', (byte)'4', (byte)'5', (byte)'6',
(byte)'7',
+            (byte)'8', (byte)'9', (byte)'a', (byte)'b', (byte)'c', (byte)'d', (byte)'e',
(byte)'f'
+        };
+
+    /*
+     * set up the decoding table.
+     */
+    protected final byte[] decodingTable = new byte[128];
+
+    protected void initialiseDecodingTable()
+    {
+        for (int i = 0; i < encodingTable.length; i++)
+        {
+            decodingTable[encodingTable[i]] = (byte)i;
+        }
+
+        decodingTable['A'] = decodingTable['a'];
+        decodingTable['B'] = decodingTable['b'];
+        decodingTable['C'] = decodingTable['c'];
+        decodingTable['D'] = decodingTable['d'];
+        decodingTable['E'] = decodingTable['e'];
+        decodingTable['F'] = decodingTable['f'];
+    }
+
+    public HexEncoder()
+    {
+        initialiseDecodingTable();
+    }
+
+    /**
+     * encode the input data producing a Hex output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public int encode(
+        byte[]                data,
+        int                    off,
+        int                    length,
+        OutputStream    out)
+        throws IOException
+    {
+        for (int i = off; i < (off + length); i++)
+        {
+            int    v = data[i] & 0xff;
+
+            out.write(encodingTable[(v >>> 4)]);
+            out.write(encodingTable[v & 0xf]);
+        }
+
+        return length * 2;
+    }
+
+    private boolean ignore(
+        char    c)
+    {
+        return (c == '\n' || c =='\r' || c == '\t' || c == ' ');
+    }
+
+    /**
+     * decode the Hex encoded byte data writing it to the given output stream,
+     * whitespace characters will be ignored.
+     *
+     * @return the number of bytes produced.
+     */
+    public int decode(
+        byte[]                data,
+        int                    off,
+        int                    length,
+        OutputStream    out)
+        throws IOException
+    {
+        byte[]    bytes;
+        byte    b1, b2;
+        int        outLen = 0;
+
+        int        end = off + length;
+
+        while (end > 0)
+        {
+            if (!ignore((char)data[end - 1]))
+            {
+                break;
+            }
+
+            end--;
+        }
+
+        int i = off;
+        while (i < end)
+        {
+            while (i < end && ignore((char)data[i]))
+            {
+                i++;
+            }
+
+            b1 = decodingTable[data[i++]];
+
+            while (i < end && ignore((char)data[i]))
+            {
+                i++;
+            }
+
+            b2 = decodingTable[data[i++]];
+
+            out.write((b1 << 4) | b2);
+
+            outLen++;
+        }
+
+        return outLen;
+    }
+
+    /**
+     * decode the Hex encoded String data writing it to the given output stream,
+     * whitespace characters will be ignored.
+     *
+     * @return the number of bytes produced.
+     */
+    public int decode(
+        String                data,
+        OutputStream    out)
+        throws IOException
+    {
+        byte[]    bytes;
+        byte    b1, b2, b3, b4;
+        int        length = 0;
+
+        int        end = data.length();
+
+        while (end > 0)
+        {
+            if (!ignore(data.charAt(end - 1)))
+            {
+                break;
+            }
+
+            end--;
+        }
+
+        int i = 0;
+        while (i < end)
+        {
+            while (i < end && ignore(data.charAt(i)))
+            {
+                i++;
+            }
+
+            b1 = decodingTable[data.charAt(i++)];
+
+            while (i < end && ignore(data.charAt(i)))
+            {
+                i++;
+            }
+
+            b2 = decodingTable[data.charAt(i++)];
+
+            out.write((b1 << 4) | b2);
+
+            length++;
+        }
+
+        return length;
+    }
+}

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Added: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XText.java
URL: http://svn.apache.org/viewcvs/geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XText.java?rev=375366&view=auto
==============================================================================
--- geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XText.java
(added)
+++ geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XText.java
Mon Feb  6 12:48:29 2006
@@ -0,0 +1,164 @@
+/**
+ *
+ * Copyright 2003-2004 The Apache Software Foundation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.geronimo.mail.util;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+/**
+ * Encoder for RFC1891 xtext.
+ *
+ * xtext strings are defined as
+ *
+ *    xtext = *( xchar / hexchar )
+ *
+ * where
+ *
+ *    xchar is any ASCII character in the range 33-126, EXCEPT
+ *    the characters "+" and "=".
+ *
+ *    hexchar is an ASCII "+" followed by two upper case
+ *    hexadecimal digits.
+ */
+public class XText
+{
+    private static final Encoder encoder = new XTextEncoder();
+
+    /**
+     * encode the input data producing an xtext  encoded byte array.
+     *
+     * @return a byte array containing the xtext encoded data.
+     */
+    public static byte[] encode(
+        byte[]    data)
+    {
+        return encode(data, 0, data.length);
+    }
+
+    /**
+     * encode the input data producing an xtext encoded byte array.
+     *
+     * @return a byte array containing the xtext encoded data.
+     */
+    public static byte[] encode(
+        byte[]    data,
+        int       off,
+        int       length)
+    {
+        ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+
+        try
+        {
+            encoder.encode(data, off, length, bOut);
+        }
+        catch (IOException e)
+        {
+            throw new RuntimeException("exception encoding xtext string: " + e);
+        }
+
+        return bOut.toByteArray();
+    }
+
+    /**
+     * xtext encode the byte data writing it to the given output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public static int encode(
+        byte[]         data,
+        OutputStream   out)
+        throws IOException
+    {
+        return encoder.encode(data, 0, data.length, out);
+    }
+
+    /**
+     * extext encode the byte data writing it to the given output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public static int encode(
+        byte[]         data,
+        int            off,
+        int            length,
+        OutputStream   out)
+        throws IOException
+    {
+        return encoder.encode(data, 0, data.length, out);
+    }
+
+    /**
+     * decode the xtext encoded input data. It is assumed the input data is valid.
+     *
+     * @return a byte array representing the decoded data.
+     */
+    public static byte[] decode(
+        byte[]    data)
+    {
+        ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+
+        try
+        {
+            encoder.decode(data, 0, data.length, bOut);
+        }
+        catch (IOException e)
+        {
+            throw new RuntimeException("exception decoding xtext string: " + e);
+        }
+
+        return bOut.toByteArray();
+    }
+
+    /**
+     * decode the xtext encoded String data - whitespace will be ignored.
+     *
+     * @return a byte array representing the decoded data.
+     */
+    public static byte[] decode(
+        String    data)
+    {
+        ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
+
+        try
+        {
+            encoder.decode(data, bOut);
+        }
+        catch (IOException e)
+        {
+            throw new RuntimeException("exception decoding xtext string: " + e);
+        }
+
+        return bOut.toByteArray();
+    }
+
+    /**
+     * decode the xtext encoded String data writing it to the given output stream,
+     * whitespace characters will be ignored.
+     *
+     * @return the number of bytes produced.
+     */
+    public static int decode(
+        String          data,
+        OutputStream    out)
+        throws IOException
+    {
+        return encoder.decode(data, out);
+    }
+}
+

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Added: geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XTextEncoder.java
URL: http://svn.apache.org/viewcvs/geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XTextEncoder.java?rev=375366&view=auto
==============================================================================
--- geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XTextEncoder.java
(added)
+++ geronimo/specs/trunk/geronimo-spec-javamail/src/main/java/org/apache/geronimo/mail/util/XTextEncoder.java
Mon Feb  6 12:48:29 2006
@@ -0,0 +1,155 @@
+/**
+ *
+ * Copyright 2003-2004 The Apache Software Foundation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.geronimo.mail.util;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class XTextEncoder
+    implements Encoder
+{
+    protected final byte[] encodingTable =
+        {
+            (byte)'0', (byte)'1', (byte)'2', (byte)'3', (byte)'4', (byte)'5', (byte)'6',
(byte)'7',
+            (byte)'8', (byte)'9', (byte)'A', (byte)'B', (byte)'C', (byte)'D', (byte)'E',
(byte)'F'
+        };
+
+    /*
+     * set up the decoding table.
+     */
+    protected final byte[] decodingTable = new byte[128];
+
+    protected void initialiseDecodingTable()
+    {
+        for (int i = 0; i < encodingTable.length; i++)
+        {
+            decodingTable[encodingTable[i]] = (byte)i;
+        }
+    }
+
+    public XTextEncoder()
+    {
+        initialiseDecodingTable();
+    }
+
+    /**
+     * encode the input data producing an XText output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public int encode(
+        byte[]                data,
+        int                    off,
+        int                    length,
+        OutputStream    out)
+        throws IOException
+    {
+        for (int i = off; i < (off + length); i++)
+        {
+            int    v = data[i] & 0xff;
+            // character tha must be encoded?  Prefix with a '+' and encode in hex.
+            if (v < 33 || v > 126 || v == '+' || v == '+') {
+                out.write((byte)'+');
+                out.write(encodingTable[(v >>> 4)]);
+                out.write(encodingTable[v & 0xf]);
+            }
+            else {
+                // add unchanged.
+                out.write((byte)v);
+            }
+        }
+
+        return length * 2;
+    }
+
+
+    /**
+     * decode the xtext encoded byte data writing it to the given output stream
+     *
+     * @return the number of bytes produced.
+     */
+    public int decode(
+        byte[]                data,
+        int                    off,
+        int                    length,
+        OutputStream    out)
+        throws IOException
+    {
+        byte[]    bytes;
+        byte    b1, b2;
+        int        outLen = 0;
+
+        int        end = off + length;
+
+        int i = off;
+        while (i < end)
+        {
+            byte v = data[i++];
+            // a plus is a hex character marker, need to decode a hex value.
+            if (v == '+') {
+                b1 = decodingTable[data[i++]];
+                b2 = decodingTable[data[i++]];
+                out.write((b1 << 4) | b2);
+            }
+            else {
+                // copied over unchanged.
+                out.write(v);
+            }
+            // always just one byte added
+            outLen++;
+        }
+
+        return outLen;
+    }
+
+    /**
+     * decode the xtext encoded String data writing it to the given output stream.
+     *
+     * @return the number of bytes produced.
+     */
+    public int decode(
+        String                data,
+        OutputStream    out)
+        throws IOException
+    {
+        byte[]    bytes;
+        byte    b1, b2, b3, b4;
+        int        length = 0;
+
+        int        end = data.length();
+
+        int i = 0;
+        while (i < end)
+        {
+            char v = data.charAt(i++);
+            if (v == '+') {
+                b1 = decodingTable[data.charAt(i++)];
+                b2 = decodingTable[data.charAt(i++)];
+
+                out.write((b1 << 4) | b2);
+            }
+            else {
+                out.write((byte)v);
+            }
+            length++;
+        }
+
+        return length;
+    }
+}
+

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