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-rw-r--r--bindings/corba/java/src/org/crosswire/util/Base64.java1238
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diff --git a/bindings/corba/java/src/org/crosswire/util/Base64.java b/bindings/corba/java/src/org/crosswire/util/Base64.java
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--- a/bindings/corba/java/src/org/crosswire/util/Base64.java
+++ /dev/null
@@ -1,1238 +0,0 @@
-package org.crosswire.util;
-
-/**
- * Changed last char from '/' to '-' because cookies can't use '/' so we're not really a BASE64
- * standard encoder anymore
- * Changed package name. --crosswire.
- * Thanks to Robert Harder for placing this code into the public domain
- *
- * Encodes and decodes to and from Base64 notation.
- *
- * <p>
- * Change Log:
- * </p>
- * <ul>
- * <li>v1.3.5 - Added flag to turn on and off line breaks. Fixed bug in input stream
- * where last buffer being read, if not completely full, was not returned.</li>
- * <li>v1.3.4 - Fixed when "improperly padded stream" error was thrown at the wrong time.</li>
- * <li>v1.3.3 - Fixed I/O streams which were totally messed up.</li>
- * </ul>
- *
- * <p>
- * I am placing this code in the Public Domain. Do with it as you will.
- * This software comes with no guarantees or warranties but with
- * plenty of well-wishing instead!
- * Please visit <a href="http://iharder.net/xmlizable">http://iharder.net/xmlizable</a>
- * periodically to check for updates or to contribute improvements.
- * </p>
- *
- * @author Robert Harder
- * @author rob@iharder.net
- * @version 1.3.4
- */
-public class Base64
-{
-
- /** Specify encoding (value is <tt>true</tt>). */
- public final static boolean ENCODE = true;
-
-
- /** Specify decoding (value is <tt>false</tt>). */
- public final static boolean DECODE = false;
-
-
- /** Maximum line length (76) of Base64 output. */
- private final static int MAX_LINE_LENGTH = java.lang.Integer.MAX_VALUE;
-
-
- /** The equals sign (=) as a byte. */
- private final static byte EQUALS_SIGN = (byte)'=';
-
-
- /** The new line character (\n) as a byte. */
- private final static byte NEW_LINE = (byte)'\n';
-
-
- /** The 64 valid Base64 values. */
- private final static byte[] ALPHABET =
- {
- (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)'-' // changed last char from '/' to '-' because cookies can't use '/'
- };
-
- /**
- * Translates a Base64 value to either its 6-bit reconstruction value
- * or a negative number indicating some other meaning.
- **/
- private final static byte[] DECODABET =
- {
- -9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 0 - 8
- -5,-5, // Whitespace: Tab and Linefeed
- -9,-9, // Decimal 11 - 12
- -5, // Whitespace: Carriage Return
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 14 - 26
- -9,-9,-9,-9,-9, // Decimal 27 - 31
- -5, // Whitespace: Space
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 33 - 42
- 62, // Plus sign at decimal 43
- -9,-9,-9, // Decimal 44 - 46
- 63, // Slash at decimal 47
- 52,53,54,55,56,57,58,59,60,61, // Numbers zero through nine
- -9,-9,-9, // Decimal 58 - 60
- -1, // Equals sign at decimal 61
- -9,-9,-9, // Decimal 62 - 64
- 0,1,2,3,4,5,6,7,8,9,10,11,12,13, // Letters 'A' through 'N'
- 14,15,16,17,18,19,20,21,22,23,24,25, // Letters 'O' through 'Z'
- -9,-9,-9,-9,-9,-9, // Decimal 91 - 96
- 26,27,28,29,30,31,32,33,34,35,36,37,38, // Letters 'a' through 'm'
- 39,40,41,42,43,44,45,46,47,48,49,50,51, // Letters 'n' through 'z'
- -9,-9,-9,-9 // Decimal 123 - 126
- /*,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 127 - 139
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 140 - 152
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 153 - 165
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 166 - 178
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 179 - 191
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 192 - 204
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 205 - 217
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 218 - 230
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 231 - 243
- -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9 // Decimal 244 - 255 */
- };
-
- private final static byte BAD_ENCODING = -9; // Indicates error in encoding
- private final static byte WHITE_SPACE_ENC = -5; // Indicates white space in encoding
- private final static byte EQUALS_SIGN_ENC = -1; // Indicates equals sign in encoding
-
-
- /** Defeats instantiation. */
- private Base64(){}
-
-
-
- /**
- * Testing. Feel free--in fact I encourage you--to throw out
- * this entire "main" method when you actually deploy this code.
- */
- public static void main( String[] args )
- {
- try
- {
- // Test encoding/decoding byte arrays
- {
- byte[] bytes1 = { (byte)2,(byte)2,(byte)3,(byte)0,(byte)9 }; // My zip code
- byte[] bytes2 = { (byte)99,(byte)2,(byte)2,(byte)3,(byte)0,(byte)9 };
- System.out.println( "Bytes 2,2,3,0,9 as Base64: " + encodeBytes( bytes1 ) );
- System.out.println( "Bytes 2,2,3,0,9 w/ offset: " + encodeBytes( bytes2, 1, bytes2.length-1 ) );
- byte[] dbytes = decode( encodeBytes( bytes1 ) );
- System.out.print( encodeBytes( bytes1 ) + " decoded: " );
- for( int i = 0; i < dbytes.length; i++ )
- System.out.print( dbytes[i] + (i<dbytes.length-1?",":"\n") );
- } // end testing byte arrays
-
-
-
-
- // Test Input Stream
- {
- // Read GIF stored in base64 form.
- java.io.FileInputStream fis = new java.io.FileInputStream( "test.gif.b64" );
- Base64.InputStream b64is = new Base64.InputStream( fis, DECODE );
-
- byte[] bytes = new byte[0];
- int b = -1;
- while( (b = b64is.read()) >= 0 ){
- byte[] temp = new byte[ bytes.length + 1 ];
- System.arraycopy( bytes,0, temp,0,bytes.length );
- temp[bytes.length] = (byte)b;
- bytes = temp;
- } // end while: terribly inefficient way to read data
- b64is.close();
- javax.swing.ImageIcon iicon = new javax.swing.ImageIcon( bytes );
- javax.swing.JLabel jlabel = new javax.swing.JLabel( "Read from test.gif.b64", iicon,0 );
- javax.swing.JFrame jframe = new javax.swing.JFrame();
- jframe.getContentPane().add( jlabel );
- jframe.pack();
- jframe.show();
-
- // Write raw bytes to file
- java.io.FileOutputStream fos = new java.io.FileOutputStream( "test.gif_out" );
- fos.write( bytes );
- fos.close();
-
- // Read raw bytes and encode
- fis = new java.io.FileInputStream( "test.gif_out" );
- b64is = new Base64.InputStream( fis, ENCODE );
- byte[] ebytes = new byte[0];
- b = -1;
- while( (b = b64is.read()) >= 0 ){
- byte[] temp = new byte[ ebytes.length + 1 ];
- System.arraycopy( ebytes,0, temp,0,ebytes.length );
- temp[ebytes.length] = (byte)b;
- ebytes = temp;
- } // end while: terribly inefficient way to read data
- b64is.close();
- String s = new String( ebytes );
- javax.swing.JTextArea jta = new javax.swing.JTextArea( s );
- javax.swing.JScrollPane jsp = new javax.swing.JScrollPane( jta );
- jframe = new javax.swing.JFrame();
- jframe.setTitle( "Read from test.gif_out" );
- jframe.getContentPane().add( jsp );
- jframe.pack();
- jframe.show();
-
- // Write encoded bytes to file
- fos = new java.io.FileOutputStream( "test.gif.b64_out" );
- fos.write( ebytes );
-
- // Read GIF stored in base64 form.
- fis = new java.io.FileInputStream( "test.gif.b64_out" );
- b64is = new Base64.InputStream( fis, DECODE );
- byte[] edbytes = new byte[0];
- b = -1;
- while( (b = b64is.read()) >= 0 ){
- byte[] temp = new byte[ edbytes.length + 1 ];
- System.arraycopy( edbytes,0, temp,0,edbytes.length );
- temp[edbytes.length] = (byte)b;
- edbytes = temp;
- } // end while: terribly inefficient way to read data
- b64is.close();
- iicon = new javax.swing.ImageIcon( edbytes );
- jlabel = new javax.swing.JLabel( "Read from test.gif.b64_out", iicon,0 );
- jframe = new javax.swing.JFrame();
- jframe.getContentPane().add( jlabel );
- jframe.pack();
- jframe.show();
- } // end: Test Input Stream
-
-
- // Test Output Stream
- {
- // Read raw bytes
- java.io.FileInputStream fis = new java.io.FileInputStream( "test.gif_out" );
- byte[] rbytes = new byte[0];
- int b = -1;
- while( (b = fis.read()) >= 0 ){
- byte[] temp = new byte[ rbytes.length + 1 ];
- System.arraycopy( rbytes,0, temp,0,rbytes.length );
- temp[rbytes.length] = (byte)b;
- rbytes = temp;
- } // end while: terribly inefficient way to read data
- fis.close();
-
- // Write raw bytes to encoded file
- java.io.FileOutputStream fos = new java.io.FileOutputStream("test.gif.b64_out2");
- Base64.OutputStream b64os = new Base64.OutputStream( fos, ENCODE );
- b64os.write( rbytes );
- b64os.close();
-
-
- // Read raw bytes that are actually encoded (but we'll ignore that)
- fis = new java.io.FileInputStream( "test.gif.b64_out2" );
- byte[] rebytes = new byte[0];
- b = -1;
- while( (b = fis.read()) >= 0 ){
- byte[] temp = new byte[ rebytes.length + 1 ];
- System.arraycopy( rebytes,0, temp,0,rebytes.length );
- temp[rebytes.length] = (byte)b;
- rebytes = temp;
- } // end while: terribly inefficient way to read data
- fis.close();
- String s = new String( rebytes );
- javax.swing.JTextArea jta = new javax.swing.JTextArea( s );
- javax.swing.JScrollPane jsp = new javax.swing.JScrollPane( jta );
- javax.swing.JFrame jframe = new javax.swing.JFrame();
- jframe.setTitle( "Read from test.gif.b64_out2" );
- jframe.getContentPane().add( jsp );
- jframe.pack();
- jframe.show();
-
- // Write encoded bytes to decoded raw file
- fos = new java.io.FileOutputStream("test.gif_out2");
- b64os = new Base64.OutputStream( fos, DECODE );
- b64os.write( rebytes );
- b64os.close();
- javax.swing.ImageIcon iicon = new javax.swing.ImageIcon( "test.gif_out2" );
- javax.swing.JLabel jlabel = new javax.swing.JLabel( "Read from test.gif_out2", iicon,0 );
- jframe = new javax.swing.JFrame();
- jframe.getContentPane().add( jlabel );
- jframe.pack();
- jframe.show();
-
- } // end: Test Output Stream
-
-
- // Test wagner's files
- {
- java.io.FileInputStream fis = new java.io.FileInputStream("D:\\temp\\testencoding.txt");
- Base64.InputStream b64is = new Base64.InputStream( fis, DECODE );
- java.io.FileOutputStream fos = new java.io.FileOutputStream("D:\\temp\\file.zip");
- int b;
- while( (b=b64is.read()) >= 0 )
- fos.write( b );
- fos.close();
- b64is.close();
-
- } // end test wagner's file
-
- } // end try
- catch( Exception e)
- { e.printStackTrace();
- }
- } // end main
-
-
-/* ******** E N C O D I N G M E T H O D S ******** */
-
-
- /**
- * Encodes the first three bytes of array <var>threeBytes</var>
- * and returns a four-byte array in Base64 notation.
- *
- * @param threeBytes the array to convert
- * @return four byte array in Base64 notation.
- * @since 1.3
- */
- private static byte[] encode3to4( byte[] threeBytes )
- { return encode3to4( threeBytes, 3 );
- } // end encodeToBytes
-
-
-
- /**
- * Encodes up to the first three bytes of array <var>threeBytes</var>
- * and returns a four-byte array in Base64 notation.
- * The actual number of significant bytes in your array is
- * given by <var>numSigBytes</var>.
- * The array <var>threeBytes</var> needs only be as big as
- * <var>numSigBytes</var>.
- *
- * @param threeBytes the array to convert
- * @param numSigBytes the number of significant bytes in your array
- * @return four byte array in Base64 notation.
- * @since 1.3
- */
- private static byte[] encode3to4( byte[] threeBytes, int numSigBytes )
- { byte[] dest = new byte[4];
- encode3to4( threeBytes, 0, numSigBytes, dest, 0 );
- return dest;
- }
-
-
-
- /**
- * Encodes up to three bytes of the array <var>source</var>
- * and writes the resulting four Base64 bytes to <var>destination</var>.
- * The source and destination arrays can be manipulated
- * anywhere along their length by specifying
- * <var>srcOffset</var> and <var>destOffset</var>.
- * This method does not check to make sure your arrays
- * are large enough to accomodate <var>srcOffset</var> + 3 for
- * the <var>source</var> array or <var>destOffset</var> + 4 for
- * the <var>destination</var> array.
- * The actual number of significant bytes in your array is
- * given by <var>numSigBytes</var>.
- *
- * @param source the array to convert
- * @param srcOffset the index where conversion begins
- * @param numSigBytes the number of significant bytes in your array
- * @param destination the array to hold the conversion
- * @param destOffset the index where output will be put
- * @return the <var>destination</var> array
- * @since 1.3
- */
- private static byte[] encode3to4(
- byte[] source, int srcOffset, int numSigBytes,
- byte[] destination, int destOffset )
- {
- // 1 2 3
- // 01234567890123456789012345678901 Bit position
- // --------000000001111111122222222 Array position from threeBytes
- // --------| || || || | Six bit groups to index ALPHABET
- // >>18 >>12 >> 6 >> 0 Right shift necessary
- // 0x3f 0x3f 0x3f Additional AND
-
- // Create buffer with zero-padding if there are only one or two
- // significant bytes passed in the array.
- // We have to shift left 24 in order to flush out the 1's that appear
- // when Java treats a value as negative that is cast from a byte to an int.
- int inBuff = ( numSigBytes > 0 ? ((source[ srcOffset ] << 24) >>> 8) : 0 )
- | ( numSigBytes > 1 ? ((source[ srcOffset + 1 ] << 24) >>> 16) : 0 )
- | ( numSigBytes > 2 ? ((source[ srcOffset + 2 ] << 24) >>> 24) : 0 );
-
- switch( numSigBytes )
- {
- case 3:
- destination[ destOffset ] = ALPHABET[ (inBuff >>> 18) ];
- destination[ destOffset + 1 ] = ALPHABET[ (inBuff >>> 12) & 0x3f ];
- destination[ destOffset + 2 ] = ALPHABET[ (inBuff >>> 6) & 0x3f ];
- destination[ destOffset + 3 ] = ALPHABET[ (inBuff ) & 0x3f ];
- return destination;
-
- case 2:
- destination[ destOffset ] = ALPHABET[ (inBuff >>> 18) ];
- destination[ destOffset + 1 ] = ALPHABET[ (inBuff >>> 12) & 0x3f ];
- destination[ destOffset + 2 ] = ALPHABET[ (inBuff >>> 6) & 0x3f ];
- destination[ destOffset + 3 ] = EQUALS_SIGN;
- return destination;
-
- case 1:
- destination[ destOffset ] = ALPHABET[ (inBuff >>> 18) ];
- destination[ destOffset + 1 ] = ALPHABET[ (inBuff >>> 12) & 0x3f ];
- destination[ destOffset + 2 ] = EQUALS_SIGN;
- destination[ destOffset + 3 ] = EQUALS_SIGN;
- return destination;
-
- default:
- return destination;
- } // end switch
- } // end encode3to4
-
- /**
- * Serializes an object and returns the Base64-encoded
- * version of that serialized object. If the object
- * cannot be serialized or there is another error,
- * the method will return <tt>null</tt>.
- *
- * @param serializableObject The object to encode
- * @return The Base64-encoded object
- * @since 1.4
- */
- public static String encodeObject( java.io.Serializable serializableObject )
- {
- return encodeObject( serializableObject, true );
- } // end encodeObject
-
- /**
- * Serializes an object and returns the Base64-encoded
- * version of that serialized object. If the object
- * cannot be serialized or there is another error,
- * the method will return <tt>null</tt>.
- *
- * @param serializableObject The object to encode
- * @param breakLines Break lines at 80 characters or less.
- * @return The Base64-encoded object
- * @since 1.4
- */
- public static String encodeObject( java.io.Serializable serializableObject, boolean breakLines )
- {
- java.io.ByteArrayOutputStream baos = null;
- java.io.OutputStream b64os = null;
- java.io.ObjectOutputStream oos = null;
-
- try
- {
- baos = new java.io.ByteArrayOutputStream();
- b64os = new Base64.OutputStream( baos, Base64.ENCODE, breakLines );
- oos = new java.io.ObjectOutputStream( b64os );
-
- oos.writeObject( serializableObject );
- } // end try
- catch( java.io.IOException e )
- {
- e.printStackTrace();
- return null;
- } // end catch
- finally
- {
- try{ oos.close(); } catch( Exception e ){}
- try{ b64os.close(); } catch( Exception e ){}
- try{ baos.close(); } catch( Exception e ){}
- } // end finally
-
- return new String( baos.toByteArray() );
- } // end encode
-
-
- /**
- * Encodes a byte array into Base64 notation.
- * Equivalen to calling
- * <code>encodeBytes( source, 0, source.length )</code>
- *
- * @param source The data to convert
- * @since 1.4
- */
- public static String encodeBytes( byte[] source )
- {
- return encodeBytes( source, true );
- } // end encodeBytes
-
- /**
- * Encodes a byte array into Base64 notation.
- * Equivalen to calling
- * <code>encodeBytes( source, 0, source.length )</code>
- *
- * @param source The data to convert
- * @param breakLines Break lines at 80 characters or less.
- * @since 1.4
- */
- public static String encodeBytes( byte[] source, boolean breakLines )
- {
- return encodeBytes( source, 0, source.length, breakLines );
- } // end encodeBytes
-
-
- /**
- * Encodes a byte array into Base64 notation.
- *
- * @param source The data to convert
- * @param off Offset in array where conversion should begin
- * @param len Length of data to convert
- * @since 1.4
- */
- public static String encodeBytes( byte[] source, int off, int len )
- {
- return encodeBytes( source, off, len, true );
- } // end encodeBytes
-
-
- /**
- * Encodes a byte array into Base64 notation.
- *
- * @param source The data to convert
- * @param off Offset in array where conversion should begin
- * @param len Length of data to convert
- * @param breakLines Break lines at 80 characters or less.
- * @since 1.4
- */
- public static String encodeBytes( byte[] source, int off, int len, boolean breakLines )
- {
- int len43 = len * 4 / 3;
- byte[] outBuff = new byte[ ( len43 ) // Main 4:3
- + ( (len % 3) > 0 ? 4 : 0 ) // Account for padding
- + (breakLines ? ( len43 / MAX_LINE_LENGTH ) : 0) ]; // New lines
- int d = 0;
- int e = 0;
- int len2 = len - 2;
- int lineLength = 0;
- for( ; d < len2; d+=3, e+=4 )
- {
- encode3to4( source, d+off, 3, outBuff, e );
-
- lineLength += 4;
- if( breakLines && lineLength == MAX_LINE_LENGTH )
- {
- outBuff[e+4] = NEW_LINE;
- e++;
- lineLength = 0;
- } // end if: end of line
- } // en dfor: each piece of array
-
- if( d < len )
- {
- encode3to4( source, d+off, len - d, outBuff, e );
- e += 4;
- } // end if: some padding needed
-
- return new String( outBuff, 0, e );
- } // end encodeBytes
-
-
- /**
- * Encodes a string in Base64 notation with line breaks
- * after every 75 Base64 characters.
- *
- * @param s the string to encode
- * @return the encoded string
- * @since 1.3
- */
- public static String encodeString( String s )
- {
- return encodeString( s, true );
- } // end encodeString
-
- /**
- * Encodes a string in Base64 notation with line breaks
- * after every 75 Base64 characters.
- *
- * @param s the string to encode
- * @param breakLines Break lines at 80 characters or less.
- * @return the encoded string
- * @since 1.3
- */
- public static String encodeString( String s, boolean breakLines )
- {
- return encodeBytes( s.getBytes(), breakLines );
- } // end encodeString
-
-
-
-
-/* ******** D E C O D I N G M E T H O D S ******** */
-
-
- /**
- * Decodes the first four bytes of array <var>fourBytes</var>
- * and returns an array up to three bytes long with the
- * decoded values.
- *
- * @param fourBytes the array with Base64 content
- * @return array with decoded values
- * @since 1.3
- */
- private static byte[] decode4to3( byte[] fourBytes )
- {
- byte[] outBuff1 = new byte[3];
- int count = decode4to3( fourBytes, 0, outBuff1, 0 );
- byte[] outBuff2 = new byte[ count ];
-
- for( int i = 0; i < count; i++ )
- outBuff2[i] = outBuff1[i];
-
- return outBuff2;
- }
-
-
-
-
- /**
- * Decodes four bytes from array <var>source</var>
- * and writes the resulting bytes (up to three of them)
- * to <var>destination</var>.
- * The source and destination arrays can be manipulated
- * anywhere along their length by specifying
- * <var>srcOffset</var> and <var>destOffset</var>.
- * This method does not check to make sure your arrays
- * are large enough to accomodate <var>srcOffset</var> + 4 for
- * the <var>source</var> array or <var>destOffset</var> + 3 for
- * the <var>destination</var> array.
- * This method returns the actual number of bytes that
- * were converted from the Base64 encoding.
- *
- *
- * @param source the array to convert
- * @param srcOffset the index where conversion begins
- * @param destination the array to hold the conversion
- * @param destOffset the index where output will be put
- * @return the number of decoded bytes converted
- * @since 1.3
- */
- private static int decode4to3( byte[] source, int srcOffset, byte[] destination, int destOffset )
- {
- // Example: Dk==
- if( source[ srcOffset + 2] == EQUALS_SIGN )
- {
- // Two ways to do the same thing. Don't know which way I like best.
- //int outBuff = ( ( DECODABET[ source[ srcOffset ] ] << 24 ) >>> 6 )
- // | ( ( DECODABET[ source[ srcOffset + 1] ] << 24 ) >>> 12 );
- int outBuff = ( ( DECODABET[ source[ srcOffset ] ] & 0xFF ) << 18 )
- | ( ( DECODABET[ source[ srcOffset + 1] ] & 0xFF ) << 12 );
-
- destination[ destOffset ] = (byte)( outBuff >>> 16 );
- return 1;
- }
-
- // Example: DkL=
- else if( source[ srcOffset + 3 ] == EQUALS_SIGN )
- {
- // Two ways to do the same thing. Don't know which way I like best.
- //int outBuff = ( ( DECODABET[ source[ srcOffset ] ] << 24 ) >>> 6 )
- // | ( ( DECODABET[ source[ srcOffset + 1 ] ] << 24 ) >>> 12 )
- // | ( ( DECODABET[ source[ srcOffset + 2 ] ] << 24 ) >>> 18 );
- int outBuff = ( ( DECODABET[ source[ srcOffset ] ] & 0xFF ) << 18 )
- | ( ( DECODABET[ source[ srcOffset + 1 ] ] & 0xFF ) << 12 )
- | ( ( DECODABET[ source[ srcOffset + 2 ] ] & 0xFF ) << 6 );
-
- destination[ destOffset ] = (byte)( outBuff >>> 16 );
- destination[ destOffset + 1 ] = (byte)( outBuff >>> 8 );
- return 2;
- }
-
- // Example: DkLE
- else
- {
- try{
- // Two ways to do the same thing. Don't know which way I like best.
- //int outBuff = ( ( DECODABET[ source[ srcOffset ] ] << 24 ) >>> 6 )
- // | ( ( DECODABET[ source[ srcOffset + 1 ] ] << 24 ) >>> 12 )
- // | ( ( DECODABET[ source[ srcOffset + 2 ] ] << 24 ) >>> 18 )
- // | ( ( DECODABET[ source[ srcOffset + 3 ] ] << 24 ) >>> 24 );
- int outBuff = ( ( DECODABET[ source[ srcOffset ] ] & 0xFF ) << 18 )
- | ( ( DECODABET[ source[ srcOffset + 1 ] ] & 0xFF ) << 12 )
- | ( ( DECODABET[ source[ srcOffset + 2 ] ] & 0xFF ) << 6)
- | ( ( DECODABET[ source[ srcOffset + 3 ] ] & 0xFF ) );
-
-
- destination[ destOffset ] = (byte)( outBuff >> 16 );
- destination[ destOffset + 1 ] = (byte)( outBuff >> 8 );
- destination[ destOffset + 2 ] = (byte)( outBuff );
-
- return 3;
- }catch( Exception e){
- System.out.println(""+source[srcOffset]+ ": " + ( DECODABET[ source[ srcOffset ] ] ) );
- System.out.println(""+source[srcOffset+1]+ ": " + ( DECODABET[ source[ srcOffset + 1 ] ] ) );
- System.out.println(""+source[srcOffset+2]+ ": " + ( DECODABET[ source[ srcOffset + 2 ] ] ) );
- System.out.println(""+source[srcOffset+3]+ ": " + ( DECODABET[ source[ srcOffset + 3 ] ] ) );
- return -1;
- } //e nd catch
- }
- } // end decodeToBytes
-
-
-
- /**
- * Decodes data from Base64 notation.
- *
- * @param s the string to decode
- * @return the decoded data
- * @since 1.4
- */
- public static byte[] decode( String s )
- {
- byte[] bytes = s.getBytes();
- return decode( bytes, 0, bytes.length );
- } // end decode
-
-
- /**
- * Decodes data from Base64 notation and
- * returns it as a string.
- * Equivlaent to calling
- * <code>new String( decode( s ) )</code>
- *
- * @param s the strind to decode
- * @return The data as a string
- * @since 1.4
- */
- public static String decodeToString( String s )
- { return new String( decode( s ) );
- } // end decodeToString
-
-
- /**
- * Attempts to decode Base64 data and deserialize a Java
- * Object within. Returns <tt>null if there was an error.
- *
- * @param encodedObject The Base64 data to decode
- * @return The decoded and deserialized object
- * @since 1.4
- */
- public static Object decodeToObject( String encodedObject )
- {
- byte[] objBytes = decode( encodedObject );
-
- java.io.ByteArrayInputStream bais = null;
- java.io.ObjectInputStream ois = null;
-
- try
- {
- bais = new java.io.ByteArrayInputStream( objBytes );
- ois = new java.io.ObjectInputStream( bais );
-
- return ois.readObject();
- } // end try
- catch( java.io.IOException e )
- {
- e.printStackTrace();
- return null;
- } // end catch
- catch( java.lang.ClassNotFoundException e )
- {
- e.printStackTrace();
- return null;
- } // end catch
- finally
- {
- try{ bais.close(); } catch( Exception e ){}
- try{ ois.close(); } catch( Exception e ){}
- } // end finally
- } // end decodeObject
-
-
- /**
- * Decodes Base64 content in byte array format and returns
- * the decoded byte array.
- *
- * @param source The Base64 encoded data
- * @param off The offset of where to begin decoding
- * @param len The length of characters to decode
- * @return decoded data
- * @since 1.3
- */
- public static byte[] decode( byte[] source, int off, int len )
- {
- int len34 = len * 3 / 4;
- byte[] outBuff = new byte[ len34 ]; // Upper limit on size of output
- int outBuffPosn = 0;
-
- byte[] b4 = new byte[4];
- int b4Posn = 0;
- int i = 0;
- byte sbiCrop = 0;
- byte sbiDecode = 0;
- for( i = 0; i < len; i++ )
- {
- sbiCrop = (byte)(source[i] & 0x7f); // Only the low seven bits
- sbiDecode = DECODABET[ sbiCrop ];
-
- if( sbiDecode >= WHITE_SPACE_ENC ) // White space, Equals sign or better
- {
- if( sbiDecode >= EQUALS_SIGN_ENC )
- {
- b4[ b4Posn++ ] = sbiCrop;
- if( b4Posn > 3 )
- {
- outBuffPosn += decode4to3( b4, 0, outBuff, outBuffPosn );
- b4Posn = 0;
-
- // If that was the equals sign, break out of 'for' loop
- if( sbiCrop == EQUALS_SIGN )
- break;
- } // end if: quartet built
-
- } // end if: equals sign or better
-
- } // end if: white space, equals sign or better
- else
- {
- System.err.println( "Bad Base64 input character at " + i + ": " + source[i] + "(decimal)" );
- return null;
- } // end else:
- } // each input character
-
- byte[] out = new byte[ outBuffPosn ];
- System.arraycopy( outBuff, 0, out, 0, outBuffPosn );
- return out;
- } // end decode
-
-
-
-
- /* ******** I N N E R C L A S S I N P U T S T R E A M ******** */
-
-
-
- /**
- * A {@link Base64#InputStream} will read data from another
- * {@link java.io.InputStream}, given in the constructor,
- * and encode/decode to/from Base64 notation on the fly.
- *
- * @see Base64
- * @see java.io.FilterInputStream
- * @since 1.3
- */
- public static class InputStream extends java.io.FilterInputStream
- {
- private boolean encode; // Encoding or decoding
- private int position; // Current position in the buffer
- private byte[] buffer; // Small buffer holding converted data
- private int bufferLength; // Length of buffer (3 or 4)
- private int numSigBytes; // Number of meaningful bytes in the buffer
- private int lineLength;
- private boolean breakLines; // Break lines at less than 80 characters
-
-
- /**
- * Constructs a {@link Base64#InputStream} in DECODE mode.
- *
- * @param in the {@link java.io.InputStream} from which to read data.
- * @since 1.3
- */
- public InputStream( java.io.InputStream in )
- {
- this( in, Base64.DECODE );
- } // end constructor
-
-
- /**
- * Constructs a {@link Base64#InputStream} in
- * either ENCODE or DECODE mode.
- *
- * @param in the {@link java.io.InputStream} from which to read data.
- * @param encode Conversion direction
- * @see Base64#ENCODE
- * @see Base64#DECODE
- * @since 1.3
- */
- public InputStream( java.io.InputStream in, boolean encode )
- {
- this( in, encode, true );
- } // end constructor
-
-
- /**
- * Constructs a {@link Base64#InputStream} in
- * either ENCODE or DECODE mode.
- *
- * @param in the {@link java.io.InputStream} from which to read data.
- * @param encode Conversion direction
- * @param breakLines Break lines at less than 80 characters.
- * @see Base64#ENCODE
- * @see Base64#DECODE
- * @since 1.3
- */
- public InputStream( java.io.InputStream in, boolean encode, boolean breakLines )
- {
- super( in );
- this.breakLines = breakLines;
- this.encode = encode;
- this.bufferLength = encode ? 4 : 3;
- this.buffer = new byte[ bufferLength ];
- this.position = -1;
- this.lineLength = 0;
- } // end constructor
-
- /**
- * Reads enough of the input stream to convert
- * to/from Base64 and returns the next byte.
- *
- * @return next byte
- * @since 1.3
- */
- public int read() throws java.io.IOException
- {
- // Do we need to get data?
- if( position < 0 )
- {
- if( encode )
- {
- byte[] b3 = new byte[3];
- int numBinaryBytes = 0;
- for( int i = 0; i < 3; i++ )
- {
- try
- {
- int b = in.read();
-
- // If end of stream, b is -1.
- if( b >= 0 )
- {
- b3[i] = (byte)b;
- numBinaryBytes++;
- } // end if: not end of stream
-
- } // end try: read
- catch( java.io.IOException e )
- {
- // Only a problem if we got no data at all.
- if( i == 0 )
- throw e;
-
- } // end catch
- } // end for: each needed input byte
-
- if( numBinaryBytes > 0 )
- {
- encode3to4( b3, 0, numBinaryBytes, buffer, 0 );
- position = 0;
- numSigBytes = 4;
- } // end if: got data
- else
- {
- return -1;
- } // end else
- } // end if: encoding
-
- // Else decoding
- else
- {
- byte[] b4 = new byte[4];
- int i = 0;
- for( i = 0; i < 4; i++ )
- {
- // Read four "meaningful" bytes:
- int b = 0;
- do{ b = in.read(); }
- while( b >= 0 && DECODABET[ b & 0x7f ] <= WHITE_SPACE_ENC );
-
- if( b < 0 )
- break; // Reads a -1 if end of stream
-
- b4[i] = (byte)b;
- } // end for: each needed input byte
-
- if( i == 4 )
- {
- numSigBytes = decode4to3( b4, 0, buffer, 0 );
- position = 0;
- } // end if: got four characters
- else if( i == 0 ){
- return -1;
- } // end else if: also padded correctly
- else
- {
- // Must have broken out from above.
- throw new java.io.IOException( "Improperly padded Base64 input." );
- } // end
-
- } // end else: decode
- } // end else: get data
-
- // Got data?
- if( position >= 0 )
- {
- // End of relevant data?
- if( /*!encode &&*/ position >= numSigBytes )
- return -1;
-
- if( encode && breakLines && lineLength >= MAX_LINE_LENGTH )
- {
- lineLength = 0;
- return '\n';
- } // end if
- else
- {
- lineLength++; // This isn't important when decoding
- // but throwing an extra "if" seems
- // just as wasteful.
-
- int b = buffer[ position++ ];
-
- if( position >= bufferLength )
- position = -1;
-
- return b & 0xFF; // This is how you "cast" a byte that's
- // intended to be unsigned.
- } // end else
- } // end if: position >= 0
-
- // Else error
- else
- {
- // When JDK1.4 is more accepted, use an assertion here.
- throw new java.io.IOException( "Error in Base64 code reading stream." );
- } // end else
- } // end read
-
-
- /**
- * Calls {@link #read} repeatedly until the end of stream
- * is reached or <var>len</var> bytes are read.
- * Returns number of bytes read into array or -1 if
- * end of stream is encountered.
- *
- * @param dest array to hold values
- * @param off offset for array
- * @param len max number of bytes to read into array
- * @return bytes read into array or -1 if end of stream is encountered.
- * @since 1.3
- */
- public int read( byte[] dest, int off, int len ) throws java.io.IOException
- {
- int i;
- int b;
- for( i = 0; i < len; i++ )
- {
- b = read();
-
- //if( b < 0 && i == 0 )
- // return -1;
-
- if( b >= 0 )
- dest[off + i] = (byte)b;
- else if( i == 0 )
- return -1;
- else
- break; // Out of 'for' loop
- } // end for: each byte read
- return i;
- } // end read
-
- } // end inner class InputStream
-
-
-
-
-
-
- /* ******** I N N E R C L A S S O U T P U T S T R E A M ******** */
-
-
-
- /**
- * A {@link Base64#OutputStream} will write data to another
- * {@link java.io.OutputStream}, given in the constructor,
- * and encode/decode to/from Base64 notation on the fly.
- *
- * @see Base64
- * @see java.io.FilterOutputStream
- * @since 1.3
- */
- public static class OutputStream extends java.io.FilterOutputStream
- {
- private boolean encode;
- private int position;
- private byte[] buffer;
- private int bufferLength;
- private int lineLength;
- private boolean breakLines;
-
-
- /**
- * Constructs a {@link Base64#OutputStream} in ENCODE mode.
- *
- * @param out the {@link java.io.OutputStream} to which data will be written.
- * @since 1.3
- */
- public OutputStream( java.io.OutputStream out )
- {
- this( out, Base64.ENCODE );
- } // end constructor
-
-
- /**
- * Constructs a {@link Base64#OutputStream} in
- * either ENCODE or DECODE mode.
- *
- * @param out the {@link java.io.OutputStream} to which data will be written.
- * @param encode Conversion direction
- * @see Base64#ENCODE
- * @see Base64#DECODE
- * @since 1.3
- */
- public OutputStream( java.io.OutputStream out, boolean encode )
- {
- this( out, encode, true );
- } // end constructor
-
-
- /**
- * Constructs a {@link Base64#OutputStream} in
- * either ENCODE or DECODE mode.
- *
- * @param out the {@link java.io.OutputStream} to which data will be written.
- * @param encode Conversion direction
- * @param breakLines Break lines to be less than 80 characters.
- * @see Base64#ENCODE
- * @see Base64#DECODE
- * @since 1.3
- */
- public OutputStream( java.io.OutputStream out, boolean encode, boolean breakLines )
- {
- super( out );
- this.breakLines = breakLines;
- this.encode = encode;
- this.bufferLength = encode ? 3 : 4;
- this.buffer = new byte[ bufferLength ];
- this.position = 0;
- this.lineLength = 0;
- } // end constructor
-
-
- /**
- * Writes the byte to the output stream after
- * converting to/from Base64 notation.
- * When encoding, bytes are buffered three
- * at a time before the output stream actually
- * gets a write() call.
- * When decoding, bytes are buffered four
- * at a time.
- *
- * @param theByte the byte to write
- * @since 1.3
- */
- public void write(int theByte) throws java.io.IOException
- {
- if( encode )
- {
- buffer[ position++ ] = (byte)theByte;
- if( position >= bufferLength ) // Enough to encode.
- {
- out.write( Base64.encode3to4( buffer, bufferLength ) );
-
- lineLength += 4;
- if( breakLines && lineLength >= MAX_LINE_LENGTH )
- {
- out.write( NEW_LINE );
- lineLength = 0;
- } // end if: end of line
-
- position = 0;
- } // end if: enough to output
- } // end if: encoding
-
- // Else, Decoding
- else
- {
- // Meaningful Base64 character?
- if( DECODABET[ theByte & 0x7f ] > WHITE_SPACE_ENC )
- {
- buffer[ position++ ] = (byte)theByte;
- if( position >= bufferLength ) // Enough to output.
- {
- out.write( Base64.decode4to3( buffer ) );
- position = 0;
- } // end if: enough to output
- } // end if: meaningful base64 character
- else if( DECODABET[ theByte & 0x7f ] != WHITE_SPACE_ENC )
- {
- throw new java.io.IOException( "Invalid character in Base64 data." );
- } // end else: not white space either
- } // end else: decoding
- } // end write
-
-
-
- /**
- * Calls {@link #write} repeatedly until <var>len</var>
- * bytes are written.
- *
- * @param theBytes array from which to read bytes
- * @param off offset for array
- * @param len max number of bytes to read into array
- * @since 1.3
- */
- public void write( byte[] theBytes, int off, int len ) throws java.io.IOException
- {
- for( int i = 0; i < len; i++ )
- {
- write( theBytes[ off + i ] );
- } // end for: each byte written
-
- } // end write
-
-
- /**
- * Appropriately pads Base64 notation when encoding
- * or throws an exception if Base64 input is not
- * properly padded when decoding.
- *
- * @since 1.3
- */
- public void flush() throws java.io.IOException
- {
- super.flush();
-
- if( position > 0 )
- {
- if( encode )
- {
- out.write( Base64.encode3to4( buffer, position ) );
- } // end if: encoding
- else
- {
- throw new java.io.IOException( "Base64 input not properly padded." );
- } // end else: decoding
- } // end if: buffer partially full
-
- out.flush();
- } // end flush
-
-
- /**
- * Flushes and closes stream.
- *
- * @since 1.3
- */
- public void close() throws java.io.IOException
- {
- super.close();
- //this.flush();
-
- out.close();
-
- buffer = null;
- out = null;
- } // end close
-
- } // end inner class OutputStream
-
-
-} // end class Base64
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 15:39:32 +0000