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+/**
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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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+
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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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+/**
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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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+ /**
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+ * TextEncodingBruteForce constructor
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+ */
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+ constructor() {
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+ super();
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+
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+ this.name = "Text Encoding Brute Force";
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+ this.module = "CharEnc";
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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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+ /**
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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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+
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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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+
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+ return output;
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+ }
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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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+
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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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+
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+ table += "<table>";
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+ return table;
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+ }
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+
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+}
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+
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+export default TextEncodingBruteForce;
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n1474335