+++ /dev/null
-// Version 1.0a
-// Copyright (C) 1998, James R. Weeks and BioElectroMech.
-// Visit BioElectroMech at www.obrador.com. Email James@obrador.com.
-
-// See license.txt for details about the allowed used of this software.
-// This software is based in part on the work of the Independent JPEG Group.
-// See IJGreadme.txt for details about the Independent JPEG Group's license.
-
-// This encoder is inspired by the Java Jpeg encoder by Florian Raemy,
-// studwww.eurecom.fr/~raemy.
-// It borrows a great deal of code and structure from the Independent
-// Jpeg Group's Jpeg 6a library, Copyright Thomas G. Lane.
-// See license.txt for details.
-
-package javajs.util;
-
-
-public class Base64 {
-
- // 0 1 2 3 4 5 6
- // 0123456789012345678901234567890123456789012345678901234567890123
- private static String base64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
- // 41----------------------5A
- // 61----------------------7A
- // 30------39
- // 2B
- // 2F
- // alternative "URL-SAFE" 2D and 5F -_
-
- private static int[] decode64 = new int[] {
- 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, //0x00-0x0F
- 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, //0x10-0x1F
- 0,0,0,0, 0,0,0,0, 0,0,0,62, 0,62,0,63, //0x20-0x2F
- 52,53,54,55, 56,57,58,59, 60,61,0,0, 0,0,0,0, //0x30-0x3F
- 0,0,1,2, 3,4,5,6, 7,8,9,10, 11,12,13,14, //0x40-0x4F
- 15,16,17,18, 19,20,21,22, 23,24,25,0, 0,0,0,63, //0x50-0x5F
- 0,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40, //0x60-0x6F
- 41,42,43,44, 45,46,47,48, 49,50,51,0, 0,0,0,0, //0x70-0x7F
- };
-
-// public static void write(byte[] bytes, OutputChannel out) {
-// SB sb = getBase64(bytes);
-// int len = sb.length();
-// byte[] b = new byte[1];
-// for (int i = 0; i < len; i++) {
-// b[0] = (byte) sb.charAt(i);
-// out.write(b, 0, 1);
-// }
-// }
-
- public static byte[] getBytes64(byte[] bytes) {
- return getBase64(bytes).toBytes(0, -1);
- }
-
- /**
- *
- * @param bytes
- * @return BASE64-encoded string, without ";base64,"
- */
- public static SB getBase64(byte[] bytes) {
- long nBytes = bytes.length;
- SB sout = new SB();
- if (nBytes == 0)
- return sout;
- for (int i = 0, nPad = 0; i < nBytes && nPad == 0;) {
- if (i % 75 == 0 && i != 0)
- sout.append("\r\n");
- nPad = (i + 2 == nBytes ? 1 : i + 1 == nBytes ? 2 : 0);
- int outbytes = ((bytes[i++] << 16) & 0xFF0000)
- | ((nPad == 2 ? 0 : bytes[i++] << 8) & 0x00FF00)
- | ((nPad >= 1 ? 0 : (int) bytes[i++]) & 0x0000FF);
- //System.out.println(Integer.toHexString(outbytes));
- sout.appendC(base64.charAt((outbytes >> 18) & 0x3F));
- sout.appendC(base64.charAt((outbytes >> 12) & 0x3F));
- sout.appendC(nPad == 2 ? '=' : base64.charAt((outbytes >> 6) & 0x3F));
- sout.appendC(nPad >= 1 ? '=' : base64.charAt(outbytes & 0x3F));
- }
- return sout;
- }
-
- //Note: Just a simple decoder here. Nothing fancy at all
- // Because of the 0s in decode64, this is not a VERIFIER
- // Rather, it may decode even bad Base64-encoded data
- //
- // Bob Hanson 4/2007
-
- public static byte[] decodeBase64(String strBase64) {
- int nBytes = 0;
- int ch;
- int pt0 = strBase64.indexOf(";base64,") + 1;
- if (pt0 > 0)
- pt0 += 7;
- char[] chars64 = strBase64.toCharArray();
- int len64 = chars64.length;
- if (len64 == 0)
- return new byte[0];
- for (int i = len64; --i >= pt0;)
- nBytes += ((ch = chars64[i] & 0x7F) == 'A' || decode64[ch] > 0 ? 3 : 0);
- nBytes = nBytes >> 2;
- byte[] bytes = new byte[nBytes];
- int offset = 18;
- for (int i = pt0, pt = 0, b = 0; i < len64; i++) {
- if (decode64[ch = chars64[i] & 0x7F] > 0 || ch == 'A' || ch == '=') {
- b |= decode64[ch] << offset;
- //System.out.println(chars64[i] + " " + decode64[ch] + " " + offset + " " + Integer.toHexString(b));
- offset -= 6;
- if (offset < 0) {
- bytes[pt++] = (byte) ((b & 0xFF0000) >> 16);
- if (pt < nBytes)
- bytes[pt++] = (byte) ((b & 0xFF00) >> 8);
- if (pt < nBytes)
- bytes[pt++] = (byte) (b & 0xFF);
- offset = 18;
- b = 0;
- }
- }
- }
- return bytes;
- }
-}
\ No newline at end of file
git://source.jalview.org / jalview.git / blobdiff