mirror of https://github.com/gchq/CyberChef.git
81 lines
1.9 KiB
JavaScript
81 lines
1.9 KiB
JavaScript
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/**
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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";
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import Utils from "../Utils";
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import unzip from "zlibjs/bin/unzip.min";
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const Zlib = unzip.Zlib;
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/**
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* Unzip operation
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*/
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class Unzip extends Operation {
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/**
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* Unzip constructor
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*/
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constructor() {
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super();
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this.name = "Unzip";
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this.module = "Compression";
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this.description = "Decompresses data using the PKZIP algorithm and displays it per file, with support for passwords.";
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this.inputType = "byteArray";
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this.outputType = "html";
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this.args = [
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{
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name: "Password",
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type: "binaryString",
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value: ""
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},
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{
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name: "Verify result",
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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 {byteArray} input
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* @param {Object[]} args
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* @returns {html}
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*/
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run(input, args) {
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const options = {
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password: Utils.strToByteArray(args[0]),
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verify: args[1]
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},
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unzip = new Zlib.Unzip(input, options),
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filenames = unzip.getFilenames(),
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files = [];
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filenames.forEach(function(fileName) {
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const bytes = unzip.decompress(fileName);
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const contents = Utils.byteArrayToUtf8(bytes);
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const file = {
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fileName: fileName,
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size: contents.length,
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};
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const isDir = contents.length === 0 && fileName.endsWith("/");
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if (!isDir) {
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file.bytes = bytes;
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file.contents = contents;
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}
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files.push(file);
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});
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return Utils.displayFilesAsHTML(files);
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}
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}
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export default Unzip;
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