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https://github.com/gchq/CyberChef.git
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add new operation: From/To MS-DOS Date and Time
This commit is contained in:
MikeCAT
parent
ed8bd34915
commit
a940a3252d
5 changed files with 420 additions and 0 deletions
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@ -290,6 +290,8 @@
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"To UNIX Timestamp",
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"Windows Filetime to UNIX Timestamp",
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"UNIX Timestamp to Windows Filetime",
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"From MS-DOS Date and Time",
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"To MS-DOS Date and Time",
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"Extract dates",
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"Get Time",
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"Sleep"
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87
src/core/operations/FromMSDOSDateAndTime.mjs
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87
src/core/operations/FromMSDOSDateAndTime.mjs
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@ -0,0 +1,87 @@
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/**
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* @author mikecat
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* @copyright Crown Copyright 2022
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* @license Apache-2.0
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*/
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import Operation from "../Operation.mjs";
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import moment from "moment-timezone";
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import OperationError from "../errors/OperationError.mjs";
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/**
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* From MS-DOS Date and Time operation
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*/
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class FromMSDOSDateAndTime extends Operation {
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/**
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* FromMSDOSDateAndTime constructor
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*/
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constructor() {
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super();
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this.name = "From MS-DOS Date and Time";
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this.module = "Default";
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this.description = "Receives a space-separated pair of MS-DOS date and time (16-bit unsigned integers) in this order and returns the corresponding datetime in <code>yyyy-MM-dd HH:mm:ss</code> format.<br><br>Some examples of where MS-DOS date and time are used are ZIP archive file and FAT filesystem.";
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this.infoURL = "https://learn.microsoft.com/en-us/windows/win32/sysinfo/ms-dos-date-and-time";
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this.inputType = "string";
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this.outputType = "string";
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this.args = [
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{
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"name": "Input Format",
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"type": "option",
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"value": ["Decimal", "Hex"]
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},
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{
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"name": "Validate datetime",
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"type": "boolean",
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"value": true
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}
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];
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}
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/**
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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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run(input, args) {
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const inputFormat = args[0], validate = args[1];
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const radixTable = {"Decimal": 10, "Hex": 16};
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if (!(inputFormat in radixTable)) {
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throw new OperationError("undefined input format");
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}
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const radix = radixTable[inputFormat];
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const inputParts = input.split(/\s+/);
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if (inputParts.length < 2) {
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throw new OperationError("invalid input");
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}
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const dateInput = parseInt(inputParts[0], radix);
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const timeInput = parseInt(inputParts[1], radix);
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if (isNaN(dateInput) || dateInput < 0 || 0xffff < dateInput ||
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isNaN(timeInput) || timeInput < 0 || 0xffff < timeInput) {
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throw new OperationError("invalid input");
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}
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const year = ((dateInput >> 9) & 0x7f) + 1980;
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const month = (dateInput >> 5) & 0x0f;
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const date = dateInput & 0x1f;
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const hour = (timeInput >> 11) & 0x1f;
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const minute = (timeInput >> 5) & 0x3f;
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const second = (timeInput & 0x1f) << 1;
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if (validate) {
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const m = moment([year, month - 1, date, hour, minute, second]);
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if (!m.isValid()) {
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throw new OperationError("invalid datetime");
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}
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}
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const toTwoDigits = function(value) {
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return (value >= 10 ? "" : "0") + value;
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};
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return "" + year + "-" + toTwoDigits(month) + "-" + toTwoDigits(date) +
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" " + toTwoDigits(hour) + ":" + toTwoDigits(minute) + ":" + toTwoDigits(second);
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}
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}
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export default FromMSDOSDateAndTime;
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90
src/core/operations/ToMSDOSDateAndTime.mjs
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90
src/core/operations/ToMSDOSDateAndTime.mjs
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@ -0,0 +1,90 @@
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/**
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* @author mikecat
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* @copyright Crown Copyright 2022
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* @license Apache-2.0
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*/
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import Operation from "../Operation.mjs";
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import moment from "moment-timezone";
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import OperationError from "../errors/OperationError.mjs";
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/**
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* To MS-DOS Date and Time operation
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*/
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class ToMSDOSDateAndTime extends Operation {
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/**
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* ToMSDOSDateAndTime constructor
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*/
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constructor() {
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super();
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this.name = "To MS-DOS Date and Time";
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this.module = "Default";
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this.description = "Parses a datetime string and returns the corresponding space-separated pair of MS-DOS date and time in this order.<br>Each of date and time are represented as 16-bit unsigned integers.<br>Years between 1980 and 2107 (inclusive) are supported.<br><br>Some examples of where MS-DOS date and time are used are ZIP archive file and FAT filesystem.";
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this.infoURL = "https://learn.microsoft.com/en-us/windows/win32/sysinfo/ms-dos-date-and-time";
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this.inputType = "string";
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this.outputType = "string";
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this.args = [
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{
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"name": "Output Format",
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"type": "option",
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"value": ["Decimal", "Hex"]
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},
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{
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"name": "Show parsed datetime",
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"type": "boolean",
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"value": true
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}
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];
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}
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/**
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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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run(input, args) {
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const outputFormat = args[0], showDate = args[1];
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const date = moment(input);
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if (!date.isValid()) {
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throw new OperationError("invalid input");
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}
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const outputFormatter = (function() {
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switch (outputFormat) {
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case "Decimal":
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return function(value) {
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return value.toString();
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};
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case "Hex":
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return function(value) {
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const result = value.toString(16);
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if (result.length >= 4) return result;
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return ("0000" + result).substring(result.length);
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};
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default:
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throw new OperationError("undefined output format");
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}
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})();
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const year = date.year();
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if (year < 1980 || 2107 < year) {
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throw new OperationError("out-of-range");
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}
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const dateOut =
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((year - 1980) << 9) |
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((date.month() + 1) << 5) |
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date.date();
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const timeOut =
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(date.hour() << 11) |
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(date.minute() << 5) |
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(date.second() >> 1);
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const output = outputFormatter(dateOut) + " " + outputFormatter(timeOut);
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if (showDate) {
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return output + " (" + date.format("yyyy-MM-DD HH:mm:ss") + ")";
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}
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return output;
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}
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}
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export default ToMSDOSDateAndTime;
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@ -124,6 +124,7 @@ import "./tests/UnescapeString.mjs";
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import "./tests/LS47.mjs";
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import "./tests/LZString.mjs";
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import "./tests/NTLM.mjs";
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import "./tests/MSDOSDateAndTime.mjs";
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// Cannot test operations that use the File type yet
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// import "./tests/SplitColourChannels.mjs";
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240
tests/operations/tests/MSDOSDateAndTime.mjs
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240
tests/operations/tests/MSDOSDateAndTime.mjs
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@ -0,0 +1,240 @@
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/**
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* @author mikecat
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* @copyright Crown Copyright 2022
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* @license Apache-2.0
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*/
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import TestRegister from "../../lib/TestRegister.mjs";
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TestRegister.addTests([
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{
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"name": "From MS-DOS Date and Time",
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"input": "21854 25692",
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"expectedOutput": "2022-10-30 12:34:56",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: minimum date",
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"input": "33 0",
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"expectedOutput": "1980-01-01 00:00:00",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: maximum date",
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"input": "65439 49021",
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"expectedOutput": "2107-12-31 23:59:58",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: month too small",
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"input": "21534 25692",
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"expectedOutput": "invalid datetime",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: month too large",
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"input": "21950 25692",
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"expectedOutput": "invalid datetime",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: date too small",
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"input": "21824 25692",
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"expectedOutput": "invalid datetime",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: date too large",
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"input": "21823 25692",
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"expectedOutput": "invalid datetime",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: hour too large",
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"input": "21854 50268",
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"expectedOutput": "invalid datetime",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: minute too large",
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"input": "21854 26524",
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"expectedOutput": "invalid datetime",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: second too large",
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"input": "21854 25694",
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"expectedOutput": "invalid datetime",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: hexadecimal input",
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"input": "2a47 75b1",
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"expectedOutput": "2001-02-07 14:45:34",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Hex", true],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: disable validation",
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"input": "21954 55711",
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"expectedOutput": "2022-14-02 27:12:62",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", false],
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},
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],
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},
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{
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"name": "From MS-DOS Date and Time: ignore extra elements",
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"input": "18137 10735 21566",
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"expectedOutput": "2015-06-25 05:15:30",
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"recipeConfig": [
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{
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"op": "From MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "To MS-DOS Date and Time",
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"input": "2022-10-30 13:24:56",
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"expectedOutput": "21854 27420 (2022-10-30 13:24:56)",
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"recipeConfig": [
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{
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"op": "To MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "To MS-DOS Date and Time: minimum year",
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"input": "1980-01-01 00:00:00",
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"expectedOutput": "33 0 (1980-01-01 00:00:00)",
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"recipeConfig": [
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{
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"op": "To MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "To MS-DOS Date and Time: maximum year",
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"input": "2107-12-31 23:59:59",
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"expectedOutput": "65439 49021 (2107-12-31 23:59:59)",
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"recipeConfig": [
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{
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"op": "To MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "To MS-DOS Date and Time: minimum year - 1",
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"input": "1979-12-31 23:59:59",
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"expectedOutput": "out-of-range",
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"recipeConfig": [
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{
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"op": "To MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "To MS-DOS Date and Time: maximum year + 1",
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"input": "2108-01-01 00:00:00",
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"expectedOutput": "out-of-range",
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"recipeConfig": [
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{
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"op": "To MS-DOS Date and Time",
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"args": ["Decimal", true],
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},
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],
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},
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{
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"name": "To MS-DOS Date and Time: hexadecimal output",
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"input": "2004-09-13 15:02:28",
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"expectedOutput": "312d 784e (2004-09-13 15:02:28)",
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"recipeConfig": [
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{
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"op": "To MS-DOS Date and Time",
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"args": ["Hex", true],
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},
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],
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},
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{
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"name": "To MS-DOS Date and Time: hexadecimal output, small values",
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"input": "1985-05-23 00:04:48",
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"expectedOutput": "0ab7 0098 (1985-05-23 00:04:48)",
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"recipeConfig": [
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{
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"op": "To MS-DOS Date and Time",
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"args": ["Hex", true],
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},
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],
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},
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{
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"name": "To MS-DOS Date and Time: no parsed datetime",
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"input": "1998-11-06 21:37:52",
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"expectedOutput": "9574 44218",
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"recipeConfig": [
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{
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"op": "To MS-DOS Date and Time",
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"args": ["Decimal", false],
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},
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],
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},
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]);
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