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Use java.util Hex and Base64 codecs

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This commit is contained in:
Chris Eager
2023-02-06 12:16:59 -06:00
committed by GitHub
parent 3bbab0027b
commit 358a286523
27 changed files with 118 additions and 250 deletions
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98
service/src/main/java/org/whispersystems/textsecuregcm/util/Hex.java
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@@ -1,98 +0,0 @@
/*
* Copyright 2013-2020 Signal Messenger, LLC
* SPDX-License-Identifier: AGPL-3.0-only
*/
package org.whispersystems.textsecuregcm.util;
/**
* Utility for generating hex dumps a la hexl-mode in emacs.
*/
public class Hex {
final static String EOL = System.getProperty("line.separator");
private final static char[] HEX_DIGITS = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
public static String toString(byte[] bytes) {
return toString(bytes, 0, bytes.length, false);
}
public static String toStringCondensed(byte[] bytes) {
return toString(bytes, 0, bytes.length, true);
}
public static String toString(byte[] bytes, int offset, int length, boolean condensed) {
StringBuffer buf = new StringBuffer();
for (int i = 0; i < length; i++) {
appendHexChar(buf, bytes[offset + i]);
if (!condensed) buf.append(' ');
}
return buf.toString();
}
public static String dump(byte[] bytes) {
return dump(bytes, 0, bytes.length);
}
public static String dump(byte[] bytes, int offset, int length) {
StringBuffer buf = new StringBuffer();
int lines = ((length - 1) / 16) + 1;
int lineOffset;
int lineLength;
for (int i = 0; i < lines; i++) {
lineOffset = (i * 16) + offset;
lineLength = Math.min(16, (length - (i * 16)));
appendDumpLine(buf, i, bytes, lineOffset, lineLength);
buf.append(EOL);
}
return buf.toString();
}
private static void appendDumpLine(StringBuffer buf, int line,
byte[] bytes, int lineOffset,
int lineLength)
{
buf.append(HEX_DIGITS[(line >> 28) & 0xf]);
buf.append(HEX_DIGITS[(line >> 24) & 0xf]);
buf.append(HEX_DIGITS[(line >> 20) & 0xf]);
buf.append(HEX_DIGITS[(line >> 16) & 0xf]);
buf.append(HEX_DIGITS[(line >> 12) & 0xf]);
buf.append(HEX_DIGITS[(line >> 8) & 0xf]);
buf.append(HEX_DIGITS[(line >> 4) & 0xf]);
buf.append(HEX_DIGITS[(line ) & 0xf]);
buf.append(": ");
for (int i = 0; i < 16; i++) {
int idx = i + lineOffset;
if (i < lineLength) {
int b = bytes[idx];
appendHexChar(buf, b);
} else {
buf.append(" ");
}
if ((i % 2) == 1) {
buf.append(' ');
}
}
for (int i = 0; i < 16 && i < lineLength; i++) {
int idx = i + lineOffset;
int b = bytes[idx];
if (b >= 0x20 && b <= 0x7e) {
buf.append((char)b);
} else {
buf.append('.');
}
}
}
private static void appendHexChar(StringBuffer buf, int b) {
buf.append(HEX_DIGITS[(b >> 4) & 0xf]);
buf.append(HEX_DIGITS[b & 0xf]);
}
}