I see Light of the Internet!

vendor/blog-engine/blog.js

@@ -0,0 +1,19 @@
+import * as bootstrap from "../twbs/bootstrap/dist/js/bootstrap.min.js";
+
+if(document.getElementById("testConn"))
+    document.getElementById("testConn").addEventListener("click", () => testConnection());
+
+function testConnection(){
+    let server = document.getElementsByName("DB_HOST")[0].value;
+    let user = document.getElementsByName("DB_USER")[0].value;
+    let pass = document.getElementsByName("DB_PASS")[0].value;
+    let name = document.getElementsByName("DB_NAME")[0].value;
+    let xmlhttp = new XMLHttpRequest();
+    xmlhttp.onreadystatechange = function (){
+        if(this.readyState == 4 && this.status == 200){
+            document.getElementById("connStatus").innerHTML = this.responseText;
+        }
+    };
+    xmlhttp.open("GET", "_checkdbconn.php?s=" + server + "&u=" + user + "&p=" + pass + "&d=" + name, true);
+    xmlhttp.send();
+}