move PersonalMessages to its own file

routes/api/dms/PersonalMessages.js

@@ -0,0 +1,24 @@
+module.exports = {
+    "setup": function(router,con,server) {
+        router.get("/api/getPersonalPosts", async function(req,res) {
+            res.set("Access-Control-Allow-Origin","")
+        
+            let otherperson = req.query.otherperson
+        
+            if(typeof otherperson != "string" || otherperson.length > 100) {
+                res.status(400).json({"error": "invalid otherperson given"})
+                return
+            }
+        
+            const columns = [
+                "dms_user_name","dms_text","dms_time","dms_special_text","dms_id","dms_from_bot","dms_reply_id"
+            ]
+
+            let sql = `select ${columns.join(",")} from ipost.dms where (dms_channel = ?) order by dms_id desc;`
+            con.query(sql, [xor(encodeURIComponent(res.locals.username),otherperson)], function (err, result) {
+                if (err) throw err;
+                res.json(result)
+            });
+        })
+    }
+}