Attempt to provision subdomain on team create

shared/utils/domains.js

@@ -0,0 +1,66 @@
+// @flow
+import parseDomain from 'parse-domain';
+
+export function stripSubdomain(hostname: string) {
+  const parsed = parseDomain(hostname);
+  if (!parsed) return hostname;
+
+  if (parsed.tld) return `${parsed.domain}.${parsed.tld}`;
+  return parsed.domain;
+}
+
+export const RESERVED_SUBDOMAINS = [
+  'about',
+  'account',
+  'admin',
+  'advertising',
+  'api',
+  'assets',
+  'archive',
+  'beta',
+  'billing',
+  'blog',
+  'cache',
+  'cdn',
+  'code',
+  'community',
+  'dashboard',
+  'developer',
+  'developers',
+  'forum',
+  'help',
+  'home',
+  'http',
+  'https',
+  'imap',
+  'localhost',
+  'mail',
+  'mobile',
+  'news',
+  'newsletter',
+  'ns1',
+  'ns2',
+  'ns3',
+  'ns4',
+  'password',
+  'profile',
+  'sandbox',
+  'script',
+  'scripts',
+  'setup',
+  'signin',
+  'signup',
+  'smtp',
+  'support',
+  'status',
+  'static',
+  'stats',
+  'test',
+  'update',
+  'updates',
+  'www',
+  'www1',
+  'www2',
+  'www3',
+  'www4',
+];

shared/utils/domains.test.js

@@ -0,0 +1,17 @@
+/* eslint-disable flowtype/require-valid-file-annotation */
+import { stripSubdomain } from './domains';
+
+describe('#stripSubdomain', () => {
+  test('to work with localhost', () => {
+    expect(stripSubdomain('localhost')).toBe('localhost');
+  });
+  test('to return domains without a subdomain', () => {
+    expect(stripSubdomain('example')).toBe('example');
+    expect(stripSubdomain('example.com')).toBe('example.com');
+    expect(stripSubdomain('example.org:3000')).toBe('example.org');
+  });
+  test('to remove subdomains', () => {
+    expect(stripSubdomain('test.example.com')).toBe('example.com');
+    expect(stripSubdomain('test.example.com:3000')).toBe('example.com');
+  });
+});