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Rename package to com.beemdevelopment.aegis
This commit is contained in:
Alexander Bakker
parent
ceb03de240
commit
62425511a1
101 changed files with 366 additions and 362 deletions
144
app/src/main/java/com/beemdevelopment/aegis/encoding/Base32.java
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144
app/src/main/java/com/beemdevelopment/aegis/encoding/Base32.java
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package com.beemdevelopment.aegis.encoding;
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// modified for use in Aegis
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/* (PD) 2001 The Bitzi Corporation
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* Please see http://bitzi.com/publicdomain for more info.
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*
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* As modified by Patrick Woodworth:
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*
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* Copyright 2011 Patrick Woodworth
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.util.Arrays;
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/**
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* Base32 - encodes and decodes RFC3548 Base32
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* (see http://www.faqs.org/rfcs/rfc3548.html )
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*
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* @author Robert Kaye
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* @author Gordon Mohr
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*/
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public class Base32 {
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private static final String base32Chars =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
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private static final int[] base32Lookup =
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{ 0xFF,0xFF,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F, // '0', '1', '2', '3', '4', '5', '6', '7'
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0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF, // '8', '9', ':', ';', '<', '=', '>', '?'
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0xFF,0x00,0x01,0x02,0x03,0x04,0x05,0x06, // '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G'
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0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E, // 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O'
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0x0F,0x10,0x11,0x12,0x13,0x14,0x15,0x16, // 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W'
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0x17,0x18,0x19,0xFF,0xFF,0xFF,0xFF,0xFF, // 'X', 'Y', 'Z', '[', '\', ']', '^', '_'
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0xFF,0x00,0x01,0x02,0x03,0x04,0x05,0x06, // '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g'
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0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E, // 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o'
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0x0F,0x10,0x11,0x12,0x13,0x14,0x15,0x16, // 'p', 'q', 'r', 's', 't', 'u', 'v', 'w'
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0x17,0x18,0x19,0xFF,0xFF,0xFF,0xFF,0xFF // 'x', 'y', 'z', '{', '|', '}', '~', 'DEL'
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};
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/**
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* Encodes byte array to Base32 String.
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*
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* @param bytes Bytes to encode.
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* @return Encoded byte array <code>bytes</code> as a String.
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*
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*/
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public static char[] encode(final byte[] bytes) {
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int i = 0, index = 0, digit = 0, j = 0;
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int currByte, nextByte;
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char[] base32 = new char[(bytes.length + 7) * 8 / 5];
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while (i < bytes.length) {
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currByte = (bytes[i] >= 0) ? bytes[i] : (bytes[i] + 256); // unsign
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/* Is the current digit going to span a byte boundary? */
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if (index > 3) {
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if ((i + 1) < bytes.length) {
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nextByte =
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(bytes[i + 1] >= 0) ? bytes[i + 1] : (bytes[i + 1] + 256);
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} else {
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nextByte = 0;
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}
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digit = currByte & (0xFF >> index);
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index = (index + 5) % 8;
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digit <<= index;
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digit |= nextByte >> (8 - index);
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i++;
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} else {
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digit = (currByte >> (8 - (index + 5))) & 0x1F;
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index = (index + 5) % 8;
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if (index == 0)
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i++;
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}
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base32[j++] = base32Chars.charAt(digit);
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}
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return Arrays.copyOf(base32, j);
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}
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/**
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* Decodes the given Base32 String to a raw byte array.
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*
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* @param base32
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* @return Decoded <code>base32</code> String as a raw byte array.
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*/
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public static byte[] decode(final char[] base32) throws Base32Exception {
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int i, index, lookup, offset, digit;
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byte[] bytes = new byte[base32.length * 5 / 8];
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for (i = 0, index = 0, offset = 0; i < base32.length; i++) {
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lookup = base32[i] - '0';
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digit = decodeDigit(lookup);
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if (index <= 3) {
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index = (index + 5) % 8;
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if (index == 0) {
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bytes[offset] |= digit;
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offset++;
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if (offset >= bytes.length)
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break;
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} else {
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bytes[offset] |= digit << (8 - index);
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}
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} else {
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index = (index + 5) % 8;
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bytes[offset] |= (digit >>> index);
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offset++;
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if (offset >= bytes.length) {
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break;
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}
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bytes[offset] |= digit << (8 - index);
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}
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}
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return bytes;
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}
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private static int decodeDigit(int c) throws Base32Exception {
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/* Skip chars outside the lookup table */
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if (c < 0 || c >= base32Lookup.length) {
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throw new Base32Exception("char not found in base32 lookup table");
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}
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int digit = base32Lookup[c];
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/* If this digit is not in the table, ignore it */
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if (digit == 0xFF) {
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throw new Base32Exception("char not found in base32 lookup table");
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}
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return digit;
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}
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}
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@ -0,0 +1,7 @@
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package com.beemdevelopment.aegis.encoding;
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public class Base32Exception extends Exception {
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public Base32Exception(String message) {
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super(message);
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}
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}
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@ -0,0 +1,29 @@
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package com.beemdevelopment.aegis.encoding;
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import java.io.UnsupportedEncodingException;
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public class Base64 {
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private static final int _flags = android.util.Base64.NO_WRAP;
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private Base64() {
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}
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public static byte[] decode(String s) throws Base64Exception {
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try {
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return android.util.Base64.decode(s, _flags);
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} catch (IllegalArgumentException e) {
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throw new Base64Exception(e);
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}
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}
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public static String encode(byte[] data) {
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byte[] encoded = android.util.Base64.encode(data, _flags);
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try {
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return new String(encoded, "UTF-8");
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} catch (UnsupportedEncodingException e) {
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throw new RuntimeException(e);
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}
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}
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}
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package com.beemdevelopment.aegis.encoding;
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public class Base64Exception extends Exception {
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public Base64Exception(Throwable cause) {
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super(cause);
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}
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}
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@ -0,0 +1,46 @@
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package com.beemdevelopment.aegis.encoding;
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// The hexadecimal utility functions in this file were taken and modified from: http://www.docjar.com/html/api/com/sun/xml/internal/bind/DatatypeConverterImpl.java.html
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// It is licensed under GPLv2 with a classpath exception.
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public class Hex {
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private Hex() {
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}
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private static int hexToBin(char ch) {
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if ('0' <= ch && ch <= '9') return ch - '0';
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if ('A' <= ch && ch <= 'F') return ch - 'A' + 10;
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if ('a' <= ch && ch <= 'f') return ch - 'a' + 10;
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return -1;
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}
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private static final char[] hexCode = "0123456789abcdef".toCharArray();
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public static byte[] decode(String s) throws HexException {
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final int len = s.length();
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if (len % 2 != 0)
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throw new HexException("hexBinary needs to be even-length: " + s);
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byte[] out = new byte[len / 2];
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for (int i = 0; i < len; i += 2) {
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int h = hexToBin(s.charAt(i));
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int l = hexToBin(s.charAt(i + 1));
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if (h == -1 || l == -1)
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throw new HexException("contains illegal character for hexBinary: " + s);
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out[i / 2] = (byte) (h * 16 + l);
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}
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return out;
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}
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public static String encode(byte[] data) {
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StringBuilder r = new StringBuilder(data.length * 2);
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for (byte b : data) {
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r.append(hexCode[(b >> 4) & 0xF]);
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r.append(hexCode[(b & 0xF)]);
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}
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return r.toString();
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}
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}
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@ -0,0 +1,7 @@
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package com.beemdevelopment.aegis.encoding;
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public class HexException extends Exception {
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public HexException(String message) {
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super(message);
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}
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}
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