Changes indentation to 2 spaces

This commit is contained in:
Daniel Cousens 2014-03-24 16:00:14 +11:00
parent fc2c495337
commit f8de9a66da
2 changed files with 112 additions and 111 deletions

View file

@ -10,7 +10,7 @@ var base = BigInteger.valueOf(58);
var positions = {};
for (var i=0 ; i < alphabet.length ; ++i) {
positions[alphabet[i]] = i;
positions[alphabet[i]] = i;
}
// Convert a byte array to a base58-encoded string.
@ -18,31 +18,31 @@ for (var i=0 ; i < alphabet.length ; ++i) {
// Copyright (c) 2011 Google Inc.
// Ported to JavaScript by Stefan Thomas.
function encode(input) {
var bi = BigInteger.fromByteArrayUnsigned(input);
var chars = [];
var bi = BigInteger.fromByteArrayUnsigned(input);
var chars = [];
while (bi.compareTo(base) >= 0) {
var mod = bi.mod(base);
chars.push(alphabet[mod.intValue()]);
bi = bi.subtract(mod).divide(base);
}
chars.push(alphabet[bi.intValue()]);
while (bi.compareTo(base) >= 0) {
var mod = bi.mod(base);
chars.push(alphabet[mod.intValue()]);
bi = bi.subtract(mod).divide(base);
}
// Convert leading zeros too.
for (var i = 0; i < input.length; i++) {
if (input[i] == 0x00) {
chars.push(alphabet[0]);
} else break;
}
chars.push(alphabet[bi.intValue()]);
return chars.reverse().join('');
// Convert leading zeros too.
for (var i = 0; i < input.length; i++) {
if (input[i] == 0x00) {
chars.push(alphabet[0]);
} else break;
}
return chars.reverse().join('');
}
// decode a base58 string into a byte array
// input should be a base58 encoded string
// @return Array
function decode(input) {
var base = BigInteger.valueOf(58);
var length = input.length;
@ -50,54 +50,55 @@ function decode(input) {
var leading_zero = 0;
var seen_other = false;
for (var i=0; i<length ; ++i) {
var chr = input[i];
var p = positions[chr];
var chr = input[i];
var p = positions[chr];
// if we encounter an invalid character, decoding fails
if (p === undefined) {
throw new Error('invalid base58 string: ' + input);
}
// if we encounter an invalid character, decoding fails
if (p === undefined) {
throw new Error('invalid base58 string: ' + input);
}
num = num.multiply(base).add(BigInteger.valueOf(p));
num = num.multiply(base).add(BigInteger.valueOf(p));
if (chr == '1' && !seen_other) {
++leading_zero;
}
else {
seen_other = true;
}
if (chr == '1' && !seen_other) {
++leading_zero;
}
else {
seen_other = true;
}
}
var bytes = num.toByteArrayUnsigned();
// remove leading zeros
while (leading_zero-- > 0) {
bytes.unshift(0);
bytes.unshift(0);
}
return bytes;
}
function checkEncode(input, vbyte) {
vbyte = vbyte || 0;
var front = [vbyte].concat(input)
return encode(front.concat(getChecksum(front)));
vbyte = vbyte || 0;
var front = [vbyte].concat(input);
return encode(front.concat(getChecksum(front)));
}
function checkDecode(input) {
var bytes = decode(input),
front = bytes.slice(0,bytes.length-4),
back = bytes.slice(bytes.length-4);
var bytes = decode(input),
front = bytes.slice(0,bytes.length-4),
back = bytes.slice(bytes.length-4);
var checksum = getChecksum(front)
var checksum = getChecksum(front);
if (""+checksum != ""+back) {
throw new Error("Checksum failed");
}
if ("" + checksum != "" + back) {
throw new Error("Checksum failed");
}
var o = front.slice(1);
o.version = front[0];
return o;
var o = front.slice(1);
o.version = front[0];
return o;
}
function getChecksum(bytes) {

View file

@ -3,121 +3,121 @@ var WordArray = Crypto.lib.WordArray;
var base64map = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
function lpad(str, padString, length) {
while (str.length < length) str = padString + str;
return str;
while (str.length < length) str = padString + str;
return str;
}
/**
* Convert a byte array to a hex string
*/
function bytesToHex(bytes) {
return bytes.map(function(x) {
return lpad(x.toString(16), '0', 2)
}).join('');
return bytes.map(function(x) {
return lpad(x.toString(16), '0', 2)
}).join('');
};
/**
* Convert a hex string to a byte array
*/
function hexToBytes(hex) {
return hex.match(/../g).map(function(x) {
return parseInt(x,16)
});
return hex.match(/../g).map(function(x) {
return parseInt(x,16)
});
}
/**
* Convert a byte array to a base-64 string
*/
function bytesToBase64(bytes) {
var base64 = []
var base64 = []
for (var i = 0; i < bytes.length; i += 3) {
var triplet = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2];
for (var i = 0; i < bytes.length; i += 3) {
var triplet = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2];
for (var j = 0; j < 4; j++) {
if (i * 8 + j * 6 <= bytes.length * 8) {
base64.push(base64map.charAt((triplet >>> 6 * (3 - j)) & 0x3F));
} else {
base64.push('=');
}
}
for (var j = 0; j < 4; j++) {
if (i * 8 + j * 6 <= bytes.length * 8) {
base64.push(base64map.charAt((triplet >>> 6 * (3 - j)) & 0x3F));
} else {
base64.push('=');
}
}
}
return base64.join('');
return base64.join('');
}
/**
* Convert a base-64 string to a byte array
*/
function base64ToBytes(base64) {
// Remove non-base-64 characters
base64 = base64.replace(/[^A-Z0-9+\/]/ig, '');
// Remove non-base-64 characters
base64 = base64.replace(/[^A-Z0-9+\/]/ig, '');
var bytes = [];
var imod4 = 0;
var bytes = [];
var imod4 = 0;
for (var i = 0; i < base64.length; imod4 = ++i % 4) {
if (!imod4) continue
for (var i = 0; i < base64.length; imod4 = ++i % 4) {
if (!imod4) continue
bytes.push(
(
(base64map.indexOf(base64.charAt(i - 1)) & (Math.pow(2, -2 * imod4 + 8) - 1)) <<
(imod4 * 2)
) |
(base64map.indexOf(base64.charAt(i)) >>> (6 - imod4 * 2))
);
}
bytes.push(
(
(base64map.indexOf(base64.charAt(i - 1)) & (Math.pow(2, -2 * imod4 + 8) - 1)) <<
(imod4 * 2)
) |
(base64map.indexOf(base64.charAt(i)) >>> (6 - imod4 * 2))
);
}
return bytes;
return bytes;
}
/**
* Hex only (allowing bin would be potentially risky, as 01010101 = \x01 * 4 or 85)
*/
function coerceToBytes(input) {
if (typeof input != 'string') return input
return hexToBytes(input);
if (typeof input != 'string') return input
return hexToBytes(input);
}
function binToBytes(bin) {
return bin.match(/......../g).map(function(x) {
return parseInt(x,2)
});
return bin.match(/......../g).map(function(x) {
return parseInt(x,2)
});
}
function bytesToBin(bytes) {
return bytes.map(function(x) {
return lpad(x.toString(2), '0', 8)
}).join('');
return bytes.map(function(x) {
return lpad(x.toString(2), '0', 8)
}).join('');
}
function bytesToString(bytes) {
return bytes.map(function(x){
return String.fromCharCode(x)
}).join('');
return bytes.map(function(x){
return String.fromCharCode(x)
}).join('');
}
function stringToBytes(string) {
return string.split('').map(function(x) {
return x.charCodeAt(0)
});
return string.split('').map(function(x) {
return x.charCodeAt(0)
});
}
/**
* Create a byte array representing a number with the given length
*/
function numToBytes(num, bytes) {
if (bytes === undefined) bytes = 8;
if (bytes === 0) return [];
return [num % 256].concat(numToBytes(Math.floor(num / 256), bytes - 1));
if (bytes === undefined) bytes = 8;
if (bytes === 0) return [];
return [num % 256].concat(numToBytes(Math.floor(num / 256), bytes - 1));
}
/**
* Convert a byte array to the number that it represents
*/
function bytesToNum(bytes) {
if (bytes.length === 0) return 0;
return bytes[0] + 256 * bytesToNum(bytes.slice(1));
if (bytes.length === 0) return 0;
return bytes[0] + 256 * bytesToNum(bytes.slice(1));
}
/**
@ -128,26 +128,26 @@ function bytesToNum(bytes) {
* Returns a byte array.
*/
function numToVarInt(num) {
if (num < 253) return [num];
if (num < 65536) return [253].concat(numToBytes(num, 2));
if (num < 4294967296) return [254].concat(numToBytes(num, 4));
return [253].concat(numToBytes(num, 8));
if (num < 253) return [num];
if (num < 65536) return [253].concat(numToBytes(num, 2));
if (num < 4294967296) return [254].concat(numToBytes(num, 4));
return [253].concat(numToBytes(num, 8));
}
function bytesToWords(bytes) {
var words = [];
for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
words[b >>> 5] |= bytes[i] << (24 - b % 32);
}
return words;
var words = [];
for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
words[b >>> 5] |= bytes[i] << (24 - b % 32);
}
return words;
}
function wordsToBytes(words) {
var bytes = [];
for (var b = 0; b < words.length * 32; b += 8) {
bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
}
return bytes;
var bytes = [];
for (var b = 0; b < words.length * 32; b += 8) {
bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
}
return bytes;
}
function bytesToWordArray(bytes) {