mirror of https://github.com/gchq/CyberChef.git
54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
/**
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* @author n1474335 [n1474335@gmail.com]
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* @copyright Crown Copyright 2016
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* @license Apache-2.0
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*/
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import Operation from "../Operation.mjs";
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import {COMPRESSION_TYPE, ZLIB_COMPRESSION_TYPE_LOOKUP} from "../lib/Zlib.mjs";
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import zlibAndGzip from "zlibjs/bin/zlib_and_gzip.min.js";
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const Zlib = zlibAndGzip.Zlib;
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/**
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* Zlib Deflate operation
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*/
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class ZlibDeflate extends Operation {
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/**
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* ZlibDeflate constructor
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*/
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constructor() {
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super();
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this.name = "Zlib Deflate";
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this.module = "Compression";
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this.description = "Compresses data using the deflate algorithm adding zlib headers.";
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this.infoURL = "https://wikipedia.org/wiki/Zlib";
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this.inputType = "ArrayBuffer";
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this.outputType = "ArrayBuffer";
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this.args = [
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{
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name: "Compression type",
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type: "option",
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value: COMPRESSION_TYPE
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}
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];
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}
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/**
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* @param {ArrayBuffer} input
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* @param {Object[]} args
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* @returns {ArrayBuffer}
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*/
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run(input, args) {
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const deflate = new Zlib.Deflate(new Uint8Array(input), {
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compressionType: ZLIB_COMPRESSION_TYPE_LOOKUP[args[0]]
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});
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return new Uint8Array(deflate.compress()).buffer;
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}
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}
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export default ZlibDeflate;
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