feat(redirect): add redirect for congrats routes

apps/marketing/src/middleware/redirects/corporate/__tests__/index.test.ts

@@ -4,8 +4,9 @@ import {getCachedRedirectResponse} from '@/middleware/utils/getCachedRedirectRes
 
 import {getRedirects} from '../index';
 
+const studioBaseUrl = 'https://studio.code.org';
 jest.mock('@/config/studio', () => ({
-  getStudioBaseUrl: jest.fn(() => 'https://studio.code.org'),
+  getStudioBaseUrl: jest.fn(() => studioBaseUrl),
 }));
 jest.mock('@/middleware/utils/getCachedRedirectResponse', () => ({
   getCachedRedirectResponse: jest.fn((url, opts) => ({
@@ -14,10 +15,15 @@ jest.mock('@/middleware/utils/getCachedRedirectResponse', () => ({
   })),
 }));
 
-function createMockRequest(pathname: string, origin = 'https://example.com') {
+function createMockRequest(
+  pathname: string,
+  search = '',
+  origin = 'https://example.com',
+) {
   return {
     nextUrl: {
       pathname,
+      search,
       origin,
     },
   } as unknown as NextRequest;
@@ -62,6 +68,31 @@ describe('getRedirects', () => {
     );
   });
 
+  it('redirects /congrats/:course_name to studio.code.org/congrats/:course_name', () => {
+    const reqPath = '/congrats/course_name';
+    const req = createMockRequest(reqPath);
+
+    getRedirects(req);
+
+    expect(getCachedRedirectResponse).toHaveBeenCalledWith(
+      new URL(reqPath, studioBaseUrl),
+      {status: 308},
+    );
+  });
+
+  it('redirects /congrats?s=course_name_base64 to studio.code.org/congrats?s=course_name_base64', () => {
+    const reqPath = '/congrats';
+    const reqQuery = '?s=course_name_base64';
+    const req = createMockRequest(reqPath, reqQuery);
+
+    getRedirects(req);
+
+    expect(getCachedRedirectResponse).toHaveBeenCalledWith(
+      new URL(reqPath + reqQuery, studioBaseUrl),
+      {status: 308},
+    );
+  });
+
   it('returns undefined for unrelated paths', () => {
     const req = createMockRequest('/other/path');
     const result = getRedirects(req);

apps/marketing/src/middleware/redirects/corporate/index.ts

@@ -5,6 +5,7 @@ import {getCachedRedirectResponse} from '@/middleware/utils/getCachedRedirectRes
 
 export function getRedirects(request: NextRequest) {
   const fullPath = request.nextUrl.pathname;
+  const urlQuery = request.nextUrl.search;
   const pathParts = fullPath.split('/').filter(Boolean);
 
   const maybeLocale = pathParts[0];
@@ -47,4 +48,11 @@ export function getRedirects(request: NextRequest) {
 
     return getCachedRedirectResponse(redirectUrl, {status: 308});
   }
+
+  // Permanently redirect /congrats/*?s=course_name_base64 to studio.code.org/congrats/*?s=course_name_base64
+  if (pathParts[0] === 'congrats') {
+    const redirectUrl = new URL(fullPath + urlQuery, getStudioBaseUrl());
+
+    return getCachedRedirectResponse(redirectUrl, {status: 308});
+  }
 }