ESM: Ported Punycode, HTTP and PRNG operations

src/core/operations/FromPunycode.mjs

@@ -0,0 +1,52 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import punycode from "punycode";
+
+/**
+ * From Punycode operation
+ */
+class FromPunycode extends Operation {
+
+    /**
+     * FromPunycode constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "From Punycode";
+        this.module = "Encodings";
+        this.description = "Punycode is a way to represent Unicode with the limited character subset of ASCII supported by the Domain Name System.<br><br>e.g. <code>mnchen-3ya</code> decodes to <code>m\xfcnchen</code>";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Internationalised domain name",
+                "type": "boolean",
+                "value": false
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const idn = args[0];
+
+        if (idn) {
+            return punycode.toUnicode(input);
+        } else {
+            return punycode.decode(input);
+        }
+    }
+
+}
+
+export default FromPunycode;