CyberChef/src/core/operations/ToHex.mjs

100 lines
2.8 KiB
JavaScript
Raw Normal View History

/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation.mjs";
import {toHex, TO_HEX_DELIM_OPTIONS} from "../lib/Hex.mjs";
import Utils from "../Utils.mjs";
/**
* To Hex operation
*/
class ToHex extends Operation {
/**
* ToHex constructor
*/
constructor() {
super();
this.name = "To Hex";
this.module = "Default";
this.description = "Converts the input string to hexadecimal bytes separated by the specified delimiter.<br><br>e.g. The UTF-8 encoded string <code>Γειά σου</code> becomes <code>ce 93 ce b5 ce b9 ce ac 20 cf 83 ce bf cf 85 0a</code>";
this.infoURL = "https://wikipedia.org/wiki/Hexadecimal";
this.inputType = "ArrayBuffer";
this.outputType = "string";
this.args = [
{
name: "Delimiter",
type: "option",
2018-05-14 13:58:01 +02:00
value: TO_HEX_DELIM_OPTIONS
}
];
}
/**
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const delim = Utils.charRep(args[0] || "Space");
return toHex(new Uint8Array(input), delim, 2);
}
/**
* Highlight to Hex
*
* @param {Object[]} pos
* @param {number} pos[].start
* @param {number} pos[].end
* @param {Object[]} args
* @returns {Object[]} pos
*/
highlight(pos, args) {
const delim = Utils.charRep(args[0] || "Space"),
len = delim === "\r\n" ? 1 : delim.length;
pos[0].start = pos[0].start * (2 + len);
pos[0].end = pos[0].end * (2 + len) - len;
// 0x and \x are added to the beginning if they are selected, so increment the positions accordingly
if (delim === "0x" || delim === "\\x") {
pos[0].start += 2;
pos[0].end += 2;
}
return pos;
}
/**
* Highlight from Hex
*
* @param {Object[]} pos
* @param {number} pos[].start
* @param {number} pos[].end
* @param {Object[]} args
* @returns {Object[]} pos
*/
highlightReverse(pos, args) {
const delim = Utils.charRep(args[0] || "Space"),
len = delim === "\r\n" ? 1 : delim.length,
width = len + 2;
// 0x and \x are added to the beginning if they are selected, so increment the positions accordingly
if (delim === "0x" || delim === "\\x") {
if (pos[0].start > 1) pos[0].start -= 2;
else pos[0].start = 0;
if (pos[0].end > 1) pos[0].end -= 2;
else pos[0].end = 0;
}
pos[0].start = pos[0].start === 0 ? 0 : Math.round(pos[0].start / width);
pos[0].end = pos[0].end === 0 ? 0 : Math.ceil(pos[0].end / width);
return pos;
}
}
export default ToHex;