-// Version 1.0a\r
-// Copyright (C) 1998, James R. Weeks and BioElectroMech.\r
-// Visit BioElectroMech at www.obrador.com. Email James@obrador.com.\r
-\r
-// See license.txt for details about the allowed used of this software.\r
-// This software is based in part on the work of the Independent JPEG Group.\r
-// See IJGreadme.txt for details about the Independent JPEG Group's license.\r
-\r
-// This encoder is inspired by the Java Jpeg encoder by Florian Raemy,\r
-// studwww.eurecom.fr/~raemy.\r
-// It borrows a great deal of code and structure from the Independent\r
-// Jpeg Group's Jpeg 6a library, Copyright Thomas G. Lane.\r
-// See license.txt for details.\r
-\r
-package javajs.util;\r
-\r
-\r
-public class Base64 {\r
-\r
- // 0 1 2 3 4 5 6\r
- // 0123456789012345678901234567890123456789012345678901234567890123\r
- private static String base64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";\r
- // 41----------------------5A\r
- // 61----------------------7A\r
- // 30------39 \r
- // 2B \r
- // 2F\r
- // alternative "URL-SAFE" 2D and 5F -_\r
- \r
- private static int[] decode64 = new int[] {\r
- 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, //0x00-0x0F\r
- 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, //0x10-0x1F\r
- 0,0,0,0, 0,0,0,0, 0,0,0,62, 0,62,0,63, //0x20-0x2F\r
- 52,53,54,55, 56,57,58,59, 60,61,0,0, 0,0,0,0, //0x30-0x3F\r
- 0,0,1,2, 3,4,5,6, 7,8,9,10, 11,12,13,14, //0x40-0x4F\r
- 15,16,17,18, 19,20,21,22, 23,24,25,0, 0,0,0,63, //0x50-0x5F\r
- 0,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40, //0x60-0x6F\r
- 41,42,43,44, 45,46,47,48, 49,50,51,0, 0,0,0,0, //0x70-0x7F\r
- };\r
- \r
-// public static void write(byte[] bytes, OutputChannel out) {\r
-// SB sb = getBase64(bytes);\r
-// int len = sb.length();\r
-// byte[] b = new byte[1];\r
-// for (int i = 0; i < len; i++) {\r
-// b[0] = (byte) sb.charAt(i);\r
-// out.write(b, 0, 1);\r
-// }\r
-// }\r
-\r
- public static byte[] getBytes64(byte[] bytes) {\r
- return getBase64(bytes).toBytes(0, -1);\r
- }\r
-\r
- /**\r
- * \r
- * @param bytes\r
- * @return BASE64-encoded string, without ";base64,"\r
- */\r
- public static SB getBase64(byte[] bytes) {\r
- long nBytes = bytes.length;\r
- SB sout = new SB();\r
- if (nBytes == 0)\r
- return sout;\r
- for (int i = 0, nPad = 0; i < nBytes && nPad == 0;) {\r
- if (i % 75 == 0 && i != 0)\r
- sout.append("\r\n");\r
- nPad = (i + 2 == nBytes ? 1 : i + 1 == nBytes ? 2 : 0);\r
- int outbytes = ((bytes[i++] << 16) & 0xFF0000)\r
- | ((nPad == 2 ? 0 : bytes[i++] << 8) & 0x00FF00)\r
- | ((nPad >= 1 ? 0 : (int) bytes[i++]) & 0x0000FF);\r
- //System.out.println(Integer.toHexString(outbytes));\r
- sout.appendC(base64.charAt((outbytes >> 18) & 0x3F));\r
- sout.appendC(base64.charAt((outbytes >> 12) & 0x3F));\r
- sout.appendC(nPad == 2 ? '=' : base64.charAt((outbytes >> 6) & 0x3F));\r
- sout.appendC(nPad >= 1 ? '=' : base64.charAt(outbytes & 0x3F));\r
- }\r
- return sout;\r
- }\r
-\r
- //Note: Just a simple decoder here. Nothing fancy at all\r
- // Because of the 0s in decode64, this is not a VERIFIER\r
- // Rather, it may decode even bad Base64-encoded data\r
- //\r
- // Bob Hanson 4/2007\r
- \r
- public static byte[] decodeBase64(String strBase64) {\r
- int nBytes = 0;\r
- int ch;\r
- int pt0 = strBase64.indexOf(";base64,") + 1;\r
- if (pt0 > 0)\r
- pt0 += 7;\r
- char[] chars64 = strBase64.toCharArray();\r
- int len64 = chars64.length;\r
- if (len64 == 0)\r
- return new byte[0];\r
- for (int i = len64; --i >= pt0;)\r
- nBytes += ((ch = chars64[i] & 0x7F) == 'A' || decode64[ch] > 0 ? 3 : 0);\r
- nBytes = nBytes >> 2;\r
- byte[] bytes = new byte[nBytes];\r
- int offset = 18;\r
- for (int i = pt0, pt = 0, b = 0; i < len64; i++) {\r
- if (decode64[ch = chars64[i] & 0x7F] > 0 || ch == 'A' || ch == '=') {\r
- b |= decode64[ch] << offset;\r
- //System.out.println(chars64[i] + " " + decode64[ch] + " " + offset + " " + Integer.toHexString(b));\r
- offset -= 6;\r
- if (offset < 0) {\r
- bytes[pt++] = (byte) ((b & 0xFF0000) >> 16);\r
- if (pt < nBytes)\r
- bytes[pt++] = (byte) ((b & 0xFF00) >> 8);\r
- if (pt < nBytes)\r
- bytes[pt++] = (byte) (b & 0xFF);\r
- offset = 18;\r
- b = 0;\r
- }\r
- }\r
- }\r
- return bytes;\r
- } \r
+// 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 / jalviewjs.git / blobdiff