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modifications to FILETIME

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This commit is contained in:
Bwhit1 2017-06-10 23:42:02 -04:00
parent a144f65dcf
commit 003e076b00
2 changed files with 45 additions and 14 deletions
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39
src/core/operations/DateTime.js
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@ -1,4 +1,6 @@
import Decimal from "../lib/decimal.min.js";
//import Decimal from "../lib/decimal.min.js";
import Utils from "../Utils.js";
import {BigInteger} from "jsbn";
/**
* Date and time operations.
@ -83,35 +85,52 @@ const DateTime = {
/**
* Converts a Windows FILETIME to Unix Epoch time.
*
* @author bwhitn [brian.m.whitney@outlook.com]
* @param {string} input
* @param {Object[]} args (not used)
* @returns {string}
*/
runFromFiletimeToUnix: function(input, args) {
input = new Decimal(input);
input = input.sub(116444736000000000).div(10000000);
if (input.gte(0) && input.lt(Math.pow(2, 31))){
return input.toString();
let units = args[0], offset = new BigInteger("116444736000000000");
input = new BigInteger(input,16).subtract(offset);
if (units === "Seconds (s)"){
input = input.divide(new BigInteger("10000000"));
} else if (units === "Milliseconds (ms)") {
input = input.divide(new BigInteger("10000"));
} else if (units === "Microseconds (μs)") {
input = input.divide(new BigInteger("10"));
} else if (units === "Nanoseconds (ns)") {
input = input.multiply(new BigInteger("100"));
} else {
throw "Date " + input + " is not a valid date";
throw "The value " + input + " cannot be expressed as a UNIX timestamp.";
}
return input.toString();
},
/**
* Converts a Unix Epoch time to Windows FILETIME.
*
* @author bwhitn [brian.m.whitney@outlook.com]
* @param {string} input
* @param {Object[]} args (not used)
* @returns {string}
*/
runToFiletimeFromUnix: function(input, args) {
input = new Decimal(input);
if (input.gte(0) && input.lt(Math.pow(2, 31))){
return input.mul(10000000).add(116444736000000000).toHex();
let units = args[0], offset = new BigInteger("116444736000000000");
input = new BigInteger(input);
if (units === "Seconds (s)"){
input = input.multiply(new BigInteger("10000000")).add(offset);
} else if (units === "Milliseconds (ms)") {
input = input.multiply(new BigInteger("10000")).add(offset);
} else if (units === "Microseconds (μs)") {
input = input.multiply(new BigInteger("10")).add(offset);
} else if (units === "Nanoseconds (ns)") {
input = input.divide(new BigInteger("100")).add(offset);
} else {
throw "Date " + input + " is not a valid date";
throw "The value " + input + " cannot be expressed as a UNIX timestamp.";
}
return input.toString();
},