first commit

calcom/apps/web/getSubdomainRegExp.js

@@ -0,0 +1,15 @@
+const getDefaultSubdomain = (url) => {
+  if (!url.startsWith("http:") && !url.startsWith("https:")) {
+    // Make it a valid URL. Mabe we can simply return null and opt-out from orgs support till the use a URL scheme.
+    url = `https://${url}`;
+  }
+  const _url = new URL(url);
+  const regex = new RegExp(/^([a-z]+\:\/{2})?((?<subdomain>[\w-.]+)\.[\w-]+\.\w+)$/);
+  //console.log(_url.hostname, _url.hostname.match(regex));
+  return _url.hostname.match(regex)?.groups?.subdomain || null;
+};
+exports.getSubdomainRegExp = (url) => {
+  const defaultSubdomain = getDefaultSubdomain(url);
+  const subdomain = defaultSubdomain ? `(?!${defaultSubdomain})[^.]+` : "[^.]+";
+  return subdomain;
+};