mirror of https://github.com/gchq/CyberChef.git
104 lines
2.6 KiB
JavaScript
104 lines
2.6 KiB
JavaScript
import BigNumber from "bignumber.js";
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/**
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* Windows Filetime operations.
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*
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* @author n1474335 [n1474335@gmail.com]
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* @copyright Crown Copyright 2017
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* @license Apache-2.0
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*
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* @namespace
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*/
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const Filetime = {
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/**
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* @constant
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* @default
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*/
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UNITS: ["Seconds (s)", "Milliseconds (ms)", "Microseconds (μs)", "Nanoseconds (ns)"],
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/**
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* @constant
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* @default
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*/
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FILETIME_FORMATS: ["Decimal", "Hex"],
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/**
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* Windows Filetime to Unix Timestamp operation.
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*
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* @author bwhitn [brian.m.whitney@outlook.com]
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* @param {string} input
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* @param {Object[]} args
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* @returns {string}
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*/
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runFromFiletimeToUnix: function(input, args) {
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let units = args[0],
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format = args[1];
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if (!input) return "";
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if (format === "Hex") {
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input = new BigNumber(input, 16);
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} else {
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input = new BigNumber(input);
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}
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input = input.minus(new BigNumber("116444736000000000"));
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if (units === "Seconds (s)"){
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input = input.dividedBy(new BigNumber("10000000"));
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} else if (units === "Milliseconds (ms)") {
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input = input.dividedBy(new BigNumber("10000"));
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} else if (units === "Microseconds (μs)") {
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input = input.dividedBy(new BigNumber("10"));
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} else if (units === "Nanoseconds (ns)") {
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input = input.multipliedBy(new BigNumber("100"));
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} else {
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throw "Unrecognised unit";
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}
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return input.toFixed();
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},
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/**
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* Unix Timestamp to Windows Filetime operation.
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*
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* @author bwhitn [brian.m.whitney@outlook.com]
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* @param {string} input
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* @param {Object[]} args
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* @returns {string}
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*/
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runToFiletimeFromUnix: function(input, args) {
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let units = args[0],
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format = args[1];
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if (!input) return "";
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input = new BigNumber(input);
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if (units === "Seconds (s)"){
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input = input.multipliedBy(new BigNumber("10000000"));
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} else if (units === "Milliseconds (ms)") {
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input = input.multipliedBy(new BigNumber("10000"));
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} else if (units === "Microseconds (μs)") {
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input = input.multiplyiedBy(new BigNumber("10"));
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} else if (units === "Nanoseconds (ns)") {
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input = input.dividedBy(new BigNumber("100"));
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} else {
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throw "Unrecognised unit";
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}
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input = input.plus(new BigNumber("116444736000000000"));
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if (format === "Hex"){
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return input.toString(16);
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} else {
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return input.toFixed();
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}
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},
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};
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export default Filetime;
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