tronewb
Version:
JavaScript SDK that encapsulates the TRON HTTP API
149 lines • 4.67 kB
JavaScript
import { byte2hexStr, bytesToString, hextoString, byteArray2hexStr, base64DecodeFromString, base64EncodeToString, } from './bytes.js';
export function bin2String(array) {
return bytesToString(array);
}
export function arrayEquals(array1, array2, strict = false) {
if (array1.length != array2.length)
return false;
for (let i = 0; i < array1.length; i++) {
if (strict) {
if (array1[i] != array2[i])
return false;
}
else if (JSON.stringify(array1[i]) != JSON.stringify(array2[i]))
return false;
}
return true;
}
export function stringToBytes(str) {
const bytes = [];
const len = str.length;
let c;
for (let i = 0; i < len; i++) {
c = str.charCodeAt(i);
if (c >= 0x010000 && c <= 0x10ffff) {
bytes.push(((c >> 18) & 0x07) | 0xf0);
bytes.push(((c >> 12) & 0x3f) | 0x80);
bytes.push(((c >> 6) & 0x3f) | 0x80);
bytes.push((c & 0x3f) | 0x80);
}
else if (c >= 0x000800 && c <= 0x00ffff) {
bytes.push(((c >> 12) & 0x0f) | 0xe0);
bytes.push(((c >> 6) & 0x3f) | 0x80);
bytes.push((c & 0x3f) | 0x80);
}
else if (c >= 0x000080 && c <= 0x0007ff) {
bytes.push(((c >> 6) & 0x1f) | 0xc0);
bytes.push((c & 0x3f) | 0x80);
}
else
bytes.push(c & 0xff);
}
return bytes;
}
export { byte2hexStr, bytesToString, hextoString, byteArray2hexStr, base64DecodeFromString, base64EncodeToString };
export function hexChar2byte(c) {
let d;
if (c >= 'A' && c <= 'F')
d = c.charCodeAt(0) - 'A'.charCodeAt(0) + 10;
else if (c >= 'a' && c <= 'f')
d = c.charCodeAt(0) - 'a'.charCodeAt(0) + 10;
else if (c >= '0' && c <= '9')
d = c.charCodeAt(0) - '0'.charCodeAt(0);
if (typeof d === 'number')
return d;
else
throw new Error('The passed hex char is not a valid hex char');
}
export function isHexChar(c) {
if ((c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f') || (c >= '0' && c <= '9')) {
return 1;
}
return 0;
}
// set strict as true: if the length of str is odd, add 0 before the str to make its length as even
export function hexStr2byteArray(str, strict = false) {
let len = str.length;
if (strict) {
if (len % 2) {
str = `0${str}`;
len++;
}
}
const byteArray = [];
let d = 0;
let j = 0;
let k = 0;
for (let i = 0; i < len; i++) {
const c = str.charAt(i);
if (isHexChar(c)) {
d <<= 4;
d += hexChar2byte(c);
j++;
if (0 === j % 2) {
byteArray[k++] = d;
d = 0;
}
}
else
throw new Error('The passed hex char is not a valid hex string');
}
return byteArray;
}
//yyyy-MM-DD HH-mm-ss
export function strToDate(str) {
if (!/^\d{4}-\d{2}-\d{2}( \d{2}-\d{2}-\d{2}|)/.test(str))
throw new Error('The passed date string is not valid');
const tempStrs = str.split(' ');
const dateStrs = tempStrs[0].split('-');
const year = parseInt(dateStrs[0], 10);
const month = parseInt(dateStrs[1], 10) - 1;
const day = parseInt(dateStrs[2], 10);
if (tempStrs.length > 1) {
const timeStrs = tempStrs[1].split('-');
const hour = parseInt(timeStrs[0], 10);
const minute = parseInt(timeStrs[1], 10);
const second = parseInt(timeStrs[2], 10);
return new Date(year, month, day, hour, minute, second);
}
return new Date(year, month, day);
}
export function isNumber(c) {
if (c >= '0' && c <= '9')
return 1;
return 0;
}
//return 1: address --- 20Bytes HexString
//return 2: blockNumber ------ Decimal number
//return 3: assetName ------ String
//return other: error
export function getStringType(str) {
if (null == str)
return -1;
if (str.length == 0 || str == '')
return -1;
let i = 0;
if (str.length == 40) {
for (; i < 40; i++) {
const c = str.charAt(i);
if (!isHexChar(c))
break;
}
}
if (i == 40)
return 1; //40 Hex, Address
for (i = 0; i < str.length; i++) {
const c = str.charAt(i);
if (!isNumber(c))
break;
}
if (i == str.length)
return 2; // All Decimal number, BlockNumber
for (i = 0; i < str.length; i++) {
const c = str.charAt(i);
if (c > ' ')
return 3; // At least one visible character
}
return -1;
}
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