ping: Extracted constant IP_TYPES

routes/ping.js

@@ -3,6 +3,8 @@ let ipaddr = require("ipaddr.js");
 let db = require("../libs/Database").instance();
 let router = express.Router();
 
+const IP_TYPES = ["ipv4", "ipv6"];
+
 function combineToList(a, b) {
     return a + "\n" + b;
 }
@@ -23,7 +25,7 @@ router.get("/", (req, res) => {
 });
 
 router.get("/:fqdn", (req, res) => {
-    db.q.select(["ipv4", "ipv6"]).from("addresses").filter("fqdn", req.params.fqdn).first((e, d) => {
+    db.q.select(IP_TYPES).from("addresses").filter("fqdn", req.params.fqdn).first((e, d) => {
 		if (e) return res.status(400).send("Error");
 		if (!d) return res.status(404).send("Unknown FQDN");
 		res.send(d.ipv4 ? (d.ipv6 ? d.ipv4 + "\n" + d.ipv6 : d.ipv4) : (d.ipv6 ? d.ipv6 : ""));
@@ -32,7 +34,7 @@ router.get("/:fqdn", (req, res) => {
 
 router.get("/:fqdn/:code", (req, res) => {
 	let addr = ipaddr.parse(req.ip);
-    if (!["ipv4", "ipv6"].includes(addr.kind())) return res.status(400).send("Invalid ip address");
+    if (!IP_TYPES.includes(addr.kind())) return res.status(400).send("Invalid ip address");
     db.query("UPDATE addresses SET " + addr.kind() + " = ? WHERE fqdn = ? AND code = ?", [addr.toString(), req.params.fqdn, req.params.code], (e, d) => {
 		if (e) return res.status(400).send("Error");
 		res.send(addr.toString());