Fail open and send auth request to the GCIP backend if Recaptcha toke…

packages/auth/src/core/credentials/email.test.ts

@@ -184,32 +184,17 @@ describe('core/credentials/email', () => {
           });
         });
 
-        it('calls sign in with password with recaptcha forced refresh succeed', async () => {
+        it('calls sign in with password with recaptcha forced refresh', async () => {
           if (typeof window === 'undefined') {
             return;
           }
-          // Mock recaptcha js loading method and manually set window.recaptcha
+          // Mock recaptcha js loading method but not set window.recaptcha to simulate recaptcha token retrieval failure
           sinon
             .stub(jsHelpers, '_loadJS')
             .returns(Promise.resolve(new Event('')));
-          const recaptcha = new MockGreCAPTCHATopLevel();
-          window.grecaptcha = recaptcha;
-          const stub = sinon.stub(recaptcha.enterprise, 'execute');
-
-          // First verification should fail with 'wrong-site-key'
-          stub
-            .withArgs('wrong-site-key', {
-              action: RecaptchaActionName.SIGN_IN_WITH_PASSWORD
-            })
-            .rejects();
-          // Second verifcation should succeed with site key refreshed
-          stub
-            .withArgs('site-key', {
-              action: RecaptchaActionName.SIGN_IN_WITH_PASSWORD
-            })
-            .returns(Promise.resolve('recaptcha-response'));
+          window.grecaptcha = undefined;
 
-          mockEndpointWithParams(
+          const getRecaptchaConfigMock = mockEndpointWithParams(
             Endpoint.GET_RECAPTCHA_CONFIG,
             {
               clientType: RecaptchaClientType.WEB,
@@ -218,21 +203,14 @@ describe('core/credentials/email', () => {
             recaptchaConfigResponseEnforce
           );
           await auth.initializeRecaptchaConfig();
-          auth._agentRecaptchaConfig!.siteKey = 'wrong-site-key';
+          auth._agentRecaptchaConfig!.siteKey = 'cached-site-key';
 
-          const idTokenResponse = await credential._getIdTokenResponse(auth);
-          expect(idTokenResponse.idToken).to.eq('id-token');
-          expect(idTokenResponse.refreshToken).to.eq('refresh-token');
-          expect(idTokenResponse.expiresIn).to.eq('1234');
-          expect(idTokenResponse.localId).to.eq(serverUser.localId);
-          expect(apiMock.calls[0].request).to.eql({
-            captchaResponse: 'recaptcha-response',
-            clientType: RecaptchaClientType.WEB,
-            email: 'some-email',
-            password: 'some-password',
-            recaptchaVersion: RecaptchaVersion.ENTERPRISE,
-            returnSecureToken: true
-          });
+          await expect(credential._getIdTokenResponse(auth)).to.be.rejectedWith(
+            'No reCAPTCHA enterprise script loaded.'
+          );
+          // Should call getRecaptchaConfig once to refresh the cached recaptcha config
+          expect(getRecaptchaConfigMock.calls.length).to.eq(2);
+          expect(auth._agentRecaptchaConfig?.siteKey).to.eq('site-key');
         });
 
         it('calls fallback to recaptcha flow when receiving MISSING_RECAPTCHA_TOKEN error', async () => {

packages/auth/src/platform_browser/recaptcha/recaptcha_enterprise_verifier.test.ts

@@ -27,7 +27,10 @@ import * as mockFetch from '../../../test/helpers/mock_fetch';
 import { ServerError } from '../../api/errors';
 
 import { MockGreCAPTCHATopLevel } from './recaptcha_mock';
-import { RecaptchaEnterpriseVerifier } from './recaptcha_enterprise_verifier';
+import {
+  RecaptchaEnterpriseVerifier,
+  FAKE_TOKEN
+} from './recaptcha_enterprise_verifier';
 
 use(chaiAsPromised);
 use(sinonChai);
@@ -81,7 +84,7 @@ describe('platform_browser/recaptcha/recaptcha_enterprise_verifier', () => {
       expect(await verifier.verify()).to.eq('recaptcha-response');
     });
 
-    it('reject if error is thrown when retieve site key', async () => {
+    it('reject if error is thrown when retrieve site key', async () => {
       mockEndpointWithParams(
         Endpoint.GET_RECAPTCHA_CONFIG,
         request,
@@ -102,19 +105,16 @@ describe('platform_browser/recaptcha/recaptcha_enterprise_verifier', () => {
       );
     });
 
-    it('reject if error is thrown when retieve recaptcha token', async () => {
+    it('return fake recaptcha token if error is thrown when retrieve recaptcha token', async () => {
       mockEndpointWithParams(
         Endpoint.GET_RECAPTCHA_CONFIG,
         request,
         recaptchaConfigResponseEnforce
       );
       sinon
         .stub(recaptcha.enterprise, 'execute')
-        .returns(Promise.reject(Error('retieve-recaptcha-token-error')));
-      await expect(verifier.verify()).to.be.rejectedWith(
-        Error,
-        'retieve-recaptcha-token-error'
-      );
+        .returns(Promise.reject(Error('retrieve-recaptcha-token-error')));
+      expect(await verifier.verify()).to.eq(FAKE_TOKEN);
     });
   });
 });

packages/auth/src/platform_browser/recaptcha/recaptcha_enterprise_verifier.ts

@@ -33,6 +33,7 @@ const RECAPTCHA_ENTERPRISE_URL =
   'https://www.google.com/recaptcha/enterprise.js?render=';
 
 export const RECAPTCHA_ENTERPRISE_VERIFIER_TYPE = 'recaptcha-enterprise';
+export const FAKE_TOKEN = 'NO_RECAPTCHA';
 
 export class RecaptchaEnterpriseVerifier {
   /**
@@ -105,18 +106,14 @@ export class RecaptchaEnterpriseVerifier {
       const grecaptcha = window.grecaptcha;
       if (isEnterprise(grecaptcha)) {
         grecaptcha.enterprise.ready(() => {
-          try {
-            grecaptcha.enterprise
-              .execute(siteKey, { action })
-              .then(token => {
-                resolve(token);
-              })
-              .catch(error => {
-                reject(error);
-              });
-          } catch (error) {
-            reject(error);
-          }
+          grecaptcha.enterprise
+            .execute(siteKey, { action })
+            .then(token => {
+              resolve(token);
+            })
+            .catch(() => {
+              resolve(FAKE_TOKEN);
+            });
         });
       } else {
         reject(Error('No reCAPTCHA enterprise script loaded.'));