add site key form

templates/utils/getFormUrl.ts

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2021  Aravinth Manivannan <realaravinth@batsense.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/** 
+ * querySelector is the the selector that will be 
+ * used to fetch elements.
+ * So when using class-names, pass in ".whatever-classname"
+ * and for ID, "#id".
+ * */
+const getFormUrl = (querySelector: null|string|HTMLFormElement) => {
+  let form;
+  if (querySelector === null) {
+    form = <HTMLFormElement>document.querySelector("form");
+  } 
+  if (querySelector === "string" || querySelector instanceof String) {
+    form = <HTMLFormElement>document.querySelector(querySelector.toString());
+  } 
+  if (querySelector instanceof HTMLFormElement) {
+      form = querySelector;
+  }
+
+  if ( form !== undefined) {
+  return form.action
+  } else {
+    throw new Error("Can't find form");
+  }
+};
+
+export default getFormUrl;