Inital Commit

src/core/operations/DNSOverHTTPS.mjs

@@ -0,0 +1,93 @@
+/**
+ * @author h345983745 []
+ * @copyright Crown Copyright 2019
+ * @license Apache-2.0
+ */
+import jpath from "jsonpath";
+import Operation from "../Operation";
+import OperationError from "../errors/OperationError";
+
+/**
+ * HTTPS Over DNS operation
+ */
+class HTTPSOverDNS extends Operation {
+
+    /**
+     * HTTPSOverDNS constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "DNS Over HTTPS";
+        this.module = "Code";
+        this.description = "Calls out to HTTPS Over DNS Resolvers";
+        this.infoURL = "https://en.wikipedia.org/wiki/DNS_over_HTTPS";
+        this.inputType = "string";
+        this.outputType = "JSON";
+        this.args = [
+            {
+                name: "Resolver",
+                type: "editableOption",
+                value: [
+                    {
+                        name: "Google",
+                        value: "https://dns.google.com/resolve"
+                    },
+                    {
+                        name: "Cloudflare",
+                        value: "https://cloudflare-dns.com/dns-query"
+                    }
+                ]
+            },
+            {
+                name: "Request Type",
+                type: "option",
+                value: [
+                    "A",
+                    "AAAA",
+                    "TXT",
+                    "MX"
+                ]
+            },
+            {
+                name: "Show Just Answer Data",
+                type: "boolean",
+                value: false
+            },
+            {
+                name: "Validate DNSSEC",
+                type: "boolean",
+                value: true
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {JSON}
+     */
+    run(input, args) {
+        const [resolver, requestType, justAnswer, DNSSEC] = args;
+
+        var url = new URL(resolver);
+        var params = {name:input, type:requestType, cd:DNSSEC};
+
+        url.search = new URLSearchParams(params)
+
+        console.log(url.toString())
+        
+        return fetch(url, {headers:{'accept': 'application/dns-json'}}).then(response => {return response.json()})
+        .then(data => {
+            if(justAnswer){
+                return jpath.query(data, "$.Answer[*].data")
+            }
+            return data;
+
+        }).catch(e => {throw new OperationError("Error making request to " + url + e.toString())})
+
+    }
+
+}
+
+export default HTTPSOverDNS;