CyberChef/src/core/operations/ChangeIPFormat.mjs

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/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation";
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import OperationError from "../errors/OperationError";
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import Utils from "../Utils";
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import {fromHex} from "../lib/Hex";
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/**
* Change IP format operation
*/
class ChangeIPFormat extends Operation {
/**
* ChangeIPFormat constructor
*/
constructor() {
super();
this.name = "Change IP format";
this.module = "Default";
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this.description = "Convert an IP address from one format to another, e.g. <code>172.20.23.54</code> to <code>ac141736</code>";
this.inputType = "string";
this.outputType = "string";
this.args = [
{
"name": "Input format",
"type": "option",
"value": ["Dotted Decimal", "Decimal", "Hex"]
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},
{
"name": "Output format",
"type": "option",
"value": ["Dotted Decimal", "Decimal", "Hex"]
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}
];
}
/**
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
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const [inFormat, outFormat] = args,
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lines = input.split("\n");
let output = "",
j = 0;
for (let i = 0; i < lines.length; i++) {
if (lines[i] === "") continue;
let baIp = [];
let octets;
let decimal;
if (inFormat === outFormat) {
output += lines[i] + "\n";
continue;
}
// Convert to byte array IP from input format
switch (inFormat) {
case "Dotted Decimal":
octets = lines[i].split(".");
for (j = 0; j < octets.length; j++) {
baIp.push(parseInt(octets[j], 10));
}
break;
case "Decimal":
decimal = lines[i].toString();
baIp.push(decimal >> 24 & 255);
baIp.push(decimal >> 16 & 255);
baIp.push(decimal >> 8 & 255);
baIp.push(decimal & 255);
break;
case "Hex":
baIp = fromHex(lines[i]);
break;
default:
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throw new OperationError("Unsupported input IP format");
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}
let ddIp;
let decIp;
let hexIp;
// Convert byte array IP to output format
switch (outFormat) {
case "Dotted Decimal":
ddIp = "";
for (j = 0; j < baIp.length; j++) {
ddIp += baIp[j] + ".";
}
output += ddIp.slice(0, ddIp.length-1) + "\n";
break;
case "Decimal":
decIp = ((baIp[0] << 24) | (baIp[1] << 16) | (baIp[2] << 8) | baIp[3]) >>> 0;
output += decIp.toString() + "\n";
break;
case "Hex":
hexIp = "";
for (j = 0; j < baIp.length; j++) {
hexIp += Utils.hex(baIp[j]);
}
output += hexIp + "\n";
break;
default:
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throw new OperationError("Unsupported output IP format");
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}
}
return output.slice(0, output.length-1);
}
}
export default ChangeIPFormat;