mirror of https://github.com/gchq/CyberChef.git
64 lines
1.7 KiB
JavaScript
64 lines
1.7 KiB
JavaScript
/**
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* @author tlwr [toby@toby.codes]
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* @copyright Crown Copyright 2017
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* @license Apache-2.0
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*/
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import ExifParser from "exif-parser";
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import Operation from "../Operation";
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import OperationError from "../errors/OperationError";
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/**
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* Extract EXIF operation
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*/
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class ExtractEXIF extends Operation {
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/**
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* ExtractEXIF constructor
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*/
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constructor() {
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super();
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this.name = "Extract EXIF";
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this.module = "Image";
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this.description = [
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"Extracts EXIF data from an image.",
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"<br><br>",
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"EXIF data is metadata embedded in images (JPEG, JPG, TIFF) and audio files.",
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"<br><br>",
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"EXIF data from photos usually contains information about the image file itself as well as the device used to create it.",
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].join("\n");
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this.infoURL = "https://wikipedia.org/wiki/Exif";
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this.inputType = "ArrayBuffer";
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this.outputType = "string";
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this.args = [];
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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 {string}
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*/
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run(input, args) {
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try {
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const parser = ExifParser.create(input);
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const result = parser.parse();
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const lines = [];
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for (const tagName in result.tags) {
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const value = result.tags[tagName];
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lines.push(`${tagName}: ${value}`);
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}
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const numTags = lines.length;
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lines.unshift(`Found ${numTags} tags.\n`);
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return lines.join("\n");
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} catch (err) {
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throw new OperationError(`Could not extract EXIF data from image: ${err}`);
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}
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}
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}
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export default ExtractEXIF;
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