Merge branch 'defang-ip' of https://github.com/h345983745/CyberChef into h345983745-defang-ip

src/core/operations/DefangIP.mjs

@@ -0,0 +1,64 @@
+/**
+ * @author h345983745
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+
+/**
+ * Defang IP operation
+ */
+class DefangIP extends Operation {
+
+    /**
+     * DefangIP constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Defang IP";
+        this.module = "Default";
+        this.description = "Takes a IPV4 or IPV6 address and 'Defangs' it; meaning the IP becomes invalid, removing the risk of accidentally utilising it as an IP address.";
+        this.infoURL = "https://isc.sans.edu/forums/diary/Defang+all+the+things/22744/";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [];
+
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+
+
+        input = input.replace(IPV4_REGEX, x => {
+            return x.replace(/\./g, "[.]");
+        });
+
+
+        input = input.replace(IPV6_REGEX, x => {
+            return x.replace(/:/g, "[:]");
+        });
+
+        return input;
+    }
+}
+
+export default DefangIP;
+
+
+/**
+ * IPV4 regular expression
+ */
+const IPV4_REGEX = new RegExp("(?:(?:\\d|[01]?\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d\\d|\\d)(?:\\/\\d{1,2})?", "g");
+
+
+/**
+ * IPV6 regular expression
+ */
+const IPV6_REGEX = new RegExp("((?=.*::)(?!.*::.+::)(::)?([\\dA-Fa-f]{1,4}:(:|\\b)|){5}|([\\dA-Fa-f]{1,4}:){6})((([\\dA-Fa-f]{1,4}((?!\\3)::|:\\b|(?![\\dA-Fa-f])))|(?!\\2\\3)){2}|(((2[0-4]|1\\d|[1-9])?\\d|25[0-5])\\.?\\b){4})", "g");