Delete DetectFileType.mjs

src/core/operations/DetectFileType.mjs

@@ -1,81 +0,0 @@
-/**
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- */
-
-import Operation from "../Operation.mjs";
-import {detectFileType} from "../lib/FileType.mjs";
-import {FILE_SIGNATURES} from "../lib/FileSignatures.mjs";
-
-// Concat all supported extensions into a single flat list
-const exts = [].concat.apply([], Object.keys(FILE_SIGNATURES).map(cat =>
-    [].concat.apply([], FILE_SIGNATURES[cat].map(sig =>
-        sig.extension.split(",")
-    ))
-)).unique().sort().join(", ");
-
-/**
- * Detect File Type operation
- */
-class DetectFileType extends Operation {
-
-    /**
-     * DetectFileType constructor
-     */
-    constructor() {
-        super();
-
-        this.name = "Detect File Type";
-        this.module = "Default";
-        this.description = "Attempts to guess the MIME (Multipurpose Internet Mail Extensions) type of the data based on 'magic bytes'.<br><br>Currently supports the following file types: " +
-            exts + ".";
-        this.infoURL = "https://wikipedia.org/wiki/List_of_file_signatures";
-        this.inputType = "ArrayBuffer";
-        this.outputType = "string";
-        this.args = Object.keys(FILE_SIGNATURES).map(cat => {
-            return {
-                name: cat,
-                type: "boolean",
-                value: true
-            };
-        });
-    }
-
-    /**
-     * @param {ArrayBuffer} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    run(input, args) {
-        const data = new Uint8Array(input),
-            categories = [];
-
-        args.forEach((cat, i) => {
-            if (cat) categories.push(Object.keys(FILE_SIGNATURES)[i]);
-        });
-
-        const types = detectFileType(data, categories);
-
-        if (!types.length) {
-            return "Unknown file type. Have you tried checking the entropy of this data to determine whether it might be encrypted or compressed?";
-        } else {
-            const results = types.map(type => {
-                let output = `File type:   ${type.name}
-Extension:   ${type.extension}
-MIME type:   ${type.mime}\n`;
-
-                if (type.description && type.description.length) {
-                    output += `Description: ${type.description}\n`;
-                }
-
-                return output;
-            });
-
-            return results.join("\n");
-        }
-    }
-
-}
-
-export default DetectFileType;