Base64.java
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/*
* Decompiled with CFR 0_118.
*/
package com.adobe.livecycle.formsservice.sharedutils;
import com.adobe.livecycle.formsservice.logging.FormsLogger;
public class Base64 {
private static byte[] base64;
static byte[] ascii;
public static final byte[] encode(byte[] src) {
int bits6;
int bits24;
long startTime = FormsLogger.logPerformance(false, 0, "<Base64-encode>");
byte[] dst = new byte[((src.length - 1) / 3 + 1) * 4];
int didx = 0;
int sidx = 0;
while (sidx + 3 <= src.length) {
bits24 = (src[sidx++] & 255) << 16;
bits24 |= (src[sidx++] & 255) << 8;
bits6 = ((bits24 |= (src[sidx++] & 255) << 0) & 16515072) >> 18;
dst[didx++] = base64[bits6];
bits6 = (bits24 & 258048) >> 12;
dst[didx++] = base64[bits6];
bits6 = (bits24 & 4032) >> 6;
dst[didx++] = base64[bits6];
bits6 = bits24 & 63;
dst[didx++] = base64[bits6];
}
if (src.length - sidx == 2) {
bits24 = (src[sidx] & 255) << 16;
bits6 = ((bits24 |= (src[sidx + 1] & 255) << 8) & 16515072) >> 18;
dst[didx++] = base64[bits6];
bits6 = (bits24 & 258048) >> 12;
dst[didx++] = base64[bits6];
bits6 = (bits24 & 4032) >> 6;
dst[didx++] = base64[bits6];
dst[didx++] = 61;
} else if (src.length - sidx == 1) {
bits24 = (src[sidx] & 255) << 16;
bits6 = (bits24 & 16515072) >> 18;
dst[didx++] = base64[bits6];
bits6 = (bits24 & 258048) >> 12;
dst[didx++] = base64[bits6];
dst[didx++] = 61;
dst[didx++] = 61;
}
FormsLogger.logPerformance(true, startTime, "</Base64-encode>");
return dst;
}
public static final String encode(String src) {
return new String(Base64.encode(src.getBytes()));
}
public static final byte[] decode(byte[] src) {
int didx;
int sidx;
long startTime = FormsLogger.logPerformance(false, 0, "<Base64-decode>");
int tail = src.length;
while (src[tail - 1] == 61) {
--tail;
}
byte[] dst = new byte[tail - src.length / 4];
for (sidx = 0; sidx < src.length; ++sidx) {
src[sidx] = ascii[src[sidx]];
}
sidx = 0;
for (didx = 0; didx < dst.length - 2; didx += 3) {
dst[didx] = (byte)(src[sidx] << 2 & 255 | src[sidx + 1] >>> 4 & 3);
dst[didx + 1] = (byte)(src[sidx + 1] << 4 & 255 | src[sidx + 2] >>> 2 & 15);
dst[didx + 2] = (byte)(src[sidx + 2] << 6 & 255 | src[sidx + 3] & 63);
sidx += 4;
}
if (didx < dst.length) {
dst[didx] = (byte)(src[sidx] << 2 & 255 | src[sidx + 1] >>> 4 & 3);
}
if (++didx < dst.length) {
dst[didx] = (byte)(src[sidx + 1] << 4 & 255 | src[sidx + 2] >>> 2 & 15);
}
FormsLogger.logPerformance(true, startTime, "</Base64-decode>");
return dst;
}
public static final String decode(String src) {
return new String(Base64.decode(src.getBytes()));
}
static {
int idx;
base64 = new byte[]{65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 43, 47};
ascii = new byte[255];
for (idx = 0; idx < 255; ++idx) {
Base64.ascii[idx] = -1;
}
for (idx = 0; idx < base64.length; ++idx) {
Base64.ascii[Base64.base64[idx]] = (byte)idx;
}
}
}