ping: Extracted testIP middleware

routes/ping.js

@@ -13,6 +13,13 @@ function toList(array) {
     return array.reduce(combineToList, "").trim();
 }
 
+function testIP(req, res, next) {
+	let addr = ipaddr.parse(req.ip);
+    if (!IP_TYPES.includes(addr.kind())) return res.status(400).send("Invalid ip address");
+	req.params.addr = addr;
+	next();
+}
+
 router.use((req, res, next) => {
     res.type('text/plain');
 	next();
@@ -32,9 +39,8 @@ router.get("/:fqdn", (req, res) => {
 	});
 });
 
-router.get("/:fqdn/:code", (req, res) => {
-	let addr = ipaddr.parse(req.ip);
-    if (!IP_TYPES.includes(addr.kind())) return res.status(400).send("Invalid ip address");
+router.get("/:fqdn/:code", testIP, (req, res) => {
+	let addr = req.params.addr;
     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());