test: Hotfix/Orgs rewrite causing 404 with 3 or more dots domains (#9803)

* Fix RegExp

* Used ORGANIZATIONS_ENABLED to opt-out of orgs behaviour

* Add comments

* Add a new testcase

* Add response headers for easier debugging and Checkly tests in production

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;
+};

apps/web/next.config.js

@@ -5,6 +5,7 @@ const englishTranslation = require("./public/static/locales/en/common.json");
 const { withAxiom } = require("next-axiom");
 const { i18n } = require("./next-i18next.config");
 const { pages } = require("./pages");
+const { getSubdomainRegExp } = require("./getSubdomainRegExp");
 
 if (!process.env.NEXTAUTH_SECRET) throw new Error("Please set NEXTAUTH_SECRET");
 if (!process.env.CALENDSO_ENCRYPTION_KEY) throw new Error("Please set CALENDSO_ENCRYPTION_KEY");
@@ -70,14 +71,6 @@ const informAboutDuplicateTranslations = () => {
 };
 
 informAboutDuplicateTranslations();
-
-const getSubdomain = () => {
-  const _url = new URL(process.env.NEXT_PUBLIC_WEBAPP_URL);
-  const regex = new RegExp(/^([a-z]+\:\/{2})?((?<subdomain>[\w-]+)\.[\w-]+\.\w+)$/);
-  //console.log(_url.hostname, _url.hostname.match(regex));
-  return _url.hostname.match(regex)?.groups?.subdomain || null;
-};
-
 const plugins = [];
 if (process.env.ANALYZE === "true") {
   // only load dependency if env `ANALYZE` was set
@@ -102,6 +95,39 @@ const teamTypeRouteRegExp = "/team/:slug/:type((?!book$)[^/]+)";
 const privateLinkRouteRegExp = "/d/:link/:slug((?!book$)[^/]+)";
 const embedUserTypeRouteRegExp = `/:user((?!${pages.join("/|")})[^/]*)/:type/embed`;
 const embedTeamTypeRouteRegExp = "/team/:slug/:type/embed";
+const subdomainRegExp = getSubdomainRegExp(process.env.NEXT_PUBLIC_WEBAPP_URL);
+// Important Note: Do update the RegExp in apps/web/test/lib/next-config.test.ts when changing it.
+const orgHostRegExp = `^(?<orgSlug>${subdomainRegExp})\\..*`;
+
+const matcherConfigRootPath = {
+  has: [
+    {
+      type: "host",
+      value: orgHostRegExp,
+    },
+  ],
+  source: "/",
+};
+
+const matcherConfigOrgMemberPath = {
+  has: [
+    {
+      type: "host",
+      value: orgHostRegExp,
+    },
+  ],
+  source: `/:user((?!${pages.join("|")}|_next|public)[a-zA-Z0-9\-_]+)`,
+};
+
+const matcherConfigUserPath = {
+  has: [
+    {
+      type: "host",
+      value: `^(?<orgSlug>${subdomainRegExp}[^.]+)\\..*`,
+    },
+  ],
+  source: `/:user((?!${pages.join("|")}|_next|public))/:path*`,
+};
 
 /** @type {import("next").NextConfig} */
 const nextConfig = {
@@ -193,40 +219,23 @@ const nextConfig = {
     return config;
   },
   async rewrites() {
-    const defaultSubdomain = getSubdomain();
-    const subdomain = defaultSubdomain ? `(?!${defaultSubdomain})[^.]+` : "[^.]+";
-
     const beforeFiles = [
-      {
+      ...(process.env.ORGANIZATIONS_ENABLED
-        has: [
+        ? [
-          {
+            {
-            type: "host",
+              ...matcherConfigRootPath,
-            value: `^(?<orgSlug>${subdomain})\\..*`,
+              destination: "/team/:orgSlug",
-          },
+            },
-        ],
+            {
-        source: "/",
+              ...matcherConfigOrgMemberPath,
-        destination: "/team/:orgSlug",
+              destination: "/org/:orgSlug/:user",
-      },
+            },
-      {
+            {
-        has: [
+              ...matcherConfigUserPath,
-          {
+              destination: "/:user/:path*",
-            type: "host",
+            },
-            value: `^(?<orgSlug>${subdomain})\\..*`,
+          ]
-          },
+        : []),
-        ],
-        source: `/:user((?!${pages.join("|")}|_next|public)[a-zA-Z0-9\-_]+)`,
-        destination: "/org/:orgSlug/:user",
-      },
-      {
-        has: [
-          {
-            type: "host",
-            value: `^(?<orgSlug>${subdomain}[^.]+)\\..*`,
-          },
-        ],
-        source: `/:user((?!${pages.join("|")}|_next|public))/:path*`,
-        destination: "/:user/:path*",
-      },
     ];
 
     let afterFiles = [
@@ -381,6 +390,35 @@ const nextConfig = {
           },
         ],
       },
+      ...[
+        {
+          ...matcherConfigRootPath,
+          headers: [
+            {
+              key: "X-Cal-Org-path",
+              value: "/team/:orgSlug",
+            },
+          ],
+        },
+        {
+          ...matcherConfigOrgMemberPath,
+          headers: [
+            {
+              key: "X-Cal-Org-path",
+              value: "/org/:orgSlug/:user",
+            },
+          ],
+        },
+        {
+          ...matcherConfigUserPath,
+          headers: [
+            {
+              key: "X-Cal-Org-path",
+              value: "/:user/:path",
+            },
+          ],
+        },
+      ],
     ];
   },
   async redirects() {

apps/web/test/lib/next-config.test.ts

@@ -1,5 +1,7 @@
 
 import { it, expect, describe, beforeAll, afterAll } from "vitest";
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const { getSubdomainRegExp } = require("../../getSubdomainRegExp");
 let userTypeRouteRegExp: RegExp;
 let teamTypeRouteRegExp:RegExp;
 let privateLinkRouteRegExp:RegExp
@@ -161,3 +163,36 @@ describe('next.config.js - RegExp', ()=>{
   })
 })
 
+
+describe('next.config.js - Org Rewrite', ()=> {
+  // RegExp copied from next.config.js
+  const orgHostRegExp = (subdomainRegExp:string)=> new RegExp(`^(?<orgSlug>${subdomainRegExp})\\..*`)
+  describe('SubDomain Retrieval from NEXT_PUBLIC_WEBAPP_URL', ()=>{
+    it('https://app.cal.com', ()=>{
+      const subdomainRegExp = getSubdomainRegExp('https://app.cal.com');
+      expect(orgHostRegExp(subdomainRegExp).exec('app.cal.com')).toEqual(null)
+      expect(orgHostRegExp(subdomainRegExp).exec('company.app.cal.com')?.groups?.orgSlug).toEqual('company')
+      expect(orgHostRegExp(subdomainRegExp).exec('org.cal.com')?.groups?.orgSlug).toEqual('org')
+    })
+
+    it('app.cal.com', ()=>{
+      const subdomainRegExp = getSubdomainRegExp('app.cal.com');
+      expect(orgHostRegExp(subdomainRegExp).exec('app.cal.com')).toEqual(null)
+      expect(orgHostRegExp(subdomainRegExp).exec('company.app.cal.com')?.groups?.orgSlug).toEqual('company')
+    })
+
+    it('https://calcom.app.company.com', ()=>{
+      const subdomainRegExp = getSubdomainRegExp('https://calcom.app.company.com');
+      expect(orgHostRegExp(subdomainRegExp).exec('calcom.app.company.com')).toEqual(null)
+      expect(orgHostRegExp(subdomainRegExp).exec('acme.calcom.app.company.com')?.groups?.orgSlug).toEqual('acme')
+    })
+
+    it('https://calcom.example.com', ()=>{
+      const subdomainRegExp = getSubdomainRegExp('https://calcom.example.com');
+      expect(orgHostRegExp(subdomainRegExp).exec('calcom.example.com')).toEqual(null)
+      expect(orgHostRegExp(subdomainRegExp).exec('acme.calcom.example.com')?.groups?.orgSlug).toEqual('acme')
+      // The following also matches which causes anything other than the domain in NEXT_PUBLIC_WEBAPP_URL to give 404
+      expect(orgHostRegExp(subdomainRegExp).exec('some-other.company.com')?.groups?.orgSlug).toEqual('some-other')
+    })
+  })
+})

packages/lib/default-cookies.ts

@@ -22,7 +22,8 @@ export function defaultCookies(useSecureCookies: boolean): CookiesOptions {
   const defaultOptions: CookieOption["options"] = {
     domain: isENVDev
       ? process.env.ORGANIZATIONS_ENABLED
-        ? ".cal.local"
+        ? //FIXME: This is causing login to not work if someone uses anything other .cal.local for testing
+          ".cal.local"
         : undefined
       : NEXTAUTH_COOKIE_DOMAIN,
     // To enable cookies on widgets,