74 lines
1.7 KiB
JavaScript
74 lines
1.7 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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/**
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* URL Encode operation
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*/
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class URLEncode extends Operation {
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/**
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* URLEncode constructor
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*/
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constructor() {
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super();
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this.name = "URL Encode";
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this.module = "URL";
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this.description = "Encodes problematic characters into percent-encoding, a format supported by URIs/URLs.<br><br>e.g. <code>=</code> becomes <code>%3d</code>";
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this.infoURL = "https://wikipedia.org/wiki/Percent-encoding";
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this.inputType = "byteArray";
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this.outputType = "string";
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this.args = [
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{
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"name": "Encode all special chars",
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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 {string}
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*/
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run(input, args) {
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const encodeAll = args[0];
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return this.encodeBytes(input, encodeAll);
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}
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/**
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* Encode bytes in URL using percent encoding.
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*
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* @param {byteArray} bytes
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* @param {boolean} encodeAll
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* @returns {string}
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*/
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encodeBytes(bytes, encodeAll) {
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const safeChars = encodeAll ?
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/^[A-Za-z0-9]$/ :
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/^[A-Za-z0-9:/?#[\]@!$&'()*+,;=%]$/;
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let output = "";
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for (const byte of bytes) {
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const char = String.fromCharCode(byte);
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output += safeChars.test(char) ?
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char :
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"%" + byte.toString(16).toUpperCase().padStart(2, "0");
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}
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return output;
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}
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}
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export default URLEncode;
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