mirror of https://github.com/gchq/CyberChef.git
93 lines
2.5 KiB
JavaScript
93 lines
2.5 KiB
JavaScript
/**
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* @author Cynser
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* @author n1474335 [n1474335@gmail.com]
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* @copyright Crown Copyright 2018
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* @license Apache-2.0
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*/
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import Operation from "../Operation";
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import Utils from "../Utils";
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import cptable from "../vendor/js-codepage/cptable.js";
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import {IO_FORMAT} from "../lib/ChrEnc";
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/**
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* Text Encoding Brute Force operation
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*/
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class TextEncodingBruteForce extends Operation {
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/**
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* TextEncodingBruteForce constructor
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*/
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constructor() {
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super();
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this.name = "Text Encoding Brute Force";
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this.module = "Encodings";
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this.description = [
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"Enumerates all supported text encodings for the input, allowing you to quickly spot the correct one.",
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"<br><br>",
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"Supported charsets are:",
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"<ul>",
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Object.keys(IO_FORMAT).map(e => `<li>${e}</li>`).join("\n"),
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"</ul>"
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].join("\n");
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this.infoURL = "https://wikipedia.org/wiki/Character_encoding";
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this.inputType = "string";
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this.outputType = "json";
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this.presentType = "html";
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this.args = [
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{
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name: "Mode",
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type: "option",
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value: ["Encode", "Decode"]
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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 {json}
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*/
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run(input, args) {
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const output = {},
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charsets = Object.keys(IO_FORMAT),
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mode = args[0];
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charsets.forEach(charset => {
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try {
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if (mode === "Decode") {
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output[charset] = cptable.utils.decode(IO_FORMAT[charset], input);
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} else {
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output[charset] = Utils.arrayBufferToStr(cptable.utils.encode(IO_FORMAT[charset], input));
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}
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} catch (err) {
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output[charset] = "Could not decode.";
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}
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});
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return output;
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}
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/**
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* Displays the encodings in an HTML table for web apps.
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*
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* @param {Object[]} encodings
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* @returns {html}
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*/
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present(encodings) {
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let table = "<table class='table table-hover table-sm table-bordered table-nonfluid'><tr><th>Encoding</th><th>Value</th></tr>";
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for (const enc in encodings) {
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const value = Utils.printable(encodings[enc], true);
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table += `<tr><td>${enc}</td><td>${value}</td></tr>`;
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}
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table += "<table>";
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return table;
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}
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}
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export default TextEncodingBruteForce;
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