mirror of https://github.com/gchq/CyberChef.git
82 lines
2.0 KiB
JavaScript
82 lines
2.0 KiB
JavaScript
/**
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* @author mshwed [m@ttshwed.com]
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* @copyright Crown Copyright 2019
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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 { search } from "../lib/Extract";
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/**
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* Extract Hash Values operation
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*/
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class ExtractHashes extends Operation {
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/**
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* ExtractHashValues constructor
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*/
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constructor() {
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super();
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this.name = "Extract Hashes";
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this.module = "Default";
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this.description = "Extracts hash values based on hash byte length";
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this.infoURL = "https://en.wikipedia.org/wiki/Comparison_of_cryptographic_hash_functions";
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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: "Hash length",
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type: "number",
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value: 32
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},
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{
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name: "All hashes",
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type: "boolean",
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value: false
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},
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{
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name: "Display Total",
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type: "boolean",
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value: false
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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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let results = [];
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let hashCount = 0;
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const hashLength = args[0];
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const searchAllHashes = args[1];
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const showDisplayTotal = args[2];
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let hashLengths = [hashLength];
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if (searchAllHashes) hashLengths = [4, 8, 16, 32, 64, 128, 160, 192, 224, 256, 320, 384, 512, 1024];
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for (let hashLength of hashLengths) {
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const regex = new RegExp(`(\\b|^)[a-f0-9]{${hashLength}}(\\b|$)`, "g");
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const searchResults = search(input, regex, null, false);
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hashCount += searchResults.split("\n").length - 1;
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results.push(searchResults);
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}
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let output = "";
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if (showDisplayTotal) {
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output = `Total Results: ${hashCount}\n\n`;
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}
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output = output + results.join("");
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return output;
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}
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}
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export default ExtractHashes;
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