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Only fetch reCAPTCHA v2 token when FAKE_TOKEN #8493

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Merged
merged 1 commit into from
Sep 10, 2024
Merged

Only fetch reCAPTCHA v2 token when FAKE_TOKEN #8493

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24 changes: 6 additions & 18 deletions packages/auth/src/platform_browser/strategies/phone.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -267,12 +267,8 @@ export async function _verifyPhoneNumber(
authInstance: AuthInternal,
request: StartPhoneMfaEnrollmentRequest
) => {
// If reCAPTCHA Enterprise token is empty or "NO_RECAPTCHA", fetch reCAPTCHA v2 token and inject into request.
if (
!request.phoneEnrollmentInfo.captchaResponse ||
request.phoneEnrollmentInfo.captchaResponse.length === 0 ||
request.phoneEnrollmentInfo.captchaResponse === FAKE_TOKEN
) {
// If reCAPTCHA Enterprise token is FAKE_TOKEN, fetch reCAPTCHA v2 token and inject into request.
if (request.phoneEnrollmentInfo.captchaResponse === FAKE_TOKEN) {
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what is the case that we need to use a fake token?

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We use fake token when rCE token is missing (MISSING_RECAPTCHA_TOKEN) or reCAPTCHA Enterprise token check fails (INVALID_APP_CREDENTIAL). In audit mode, if the 1st request fails with the above reason, we try again with FAKE_TOKEN and rcv2 token

https://github.com/firebase/firebase-js-sdk/blob/nhienlam-rce/packages/auth/src/platform_browser/recaptcha/recaptcha_enterprise_verifier.ts#L308-L310

_assert(
verifier?.type === RECAPTCHA_VERIFIER_TYPE,
authInstance,
Expand Down Expand Up @@ -329,12 +325,8 @@ export async function _verifyPhoneNumber(
authInstance: AuthInternal,
request: StartPhoneMfaSignInRequest
) => {
// If reCAPTCHA Enterprise token is empty or "NO_RECAPTCHA", fetch reCAPTCHA v2 token and inject into request.
if (
!request.phoneSignInInfo.captchaResponse ||
request.phoneSignInInfo.captchaResponse.length === 0 ||
request.phoneSignInInfo.captchaResponse === FAKE_TOKEN
) {
// If reCAPTCHA Enterprise token is FAKE_TOKEN, fetch reCAPTCHA v2 token and inject into request.
if (request.phoneSignInInfo.captchaResponse === FAKE_TOKEN) {
_assert(
verifier?.type === RECAPTCHA_VERIFIER_TYPE,
authInstance,
Expand Down Expand Up @@ -380,12 +372,8 @@ export async function _verifyPhoneNumber(
authInstance: AuthInternal,
request: SendPhoneVerificationCodeRequest
) => {
// If reCAPTCHA Enterprise token is empty or "NO_RECAPTCHA", fetch reCAPTCHA v2 token and inject into request.
if (
!request.captchaResponse ||
request.captchaResponse.length === 0 ||
request.captchaResponse === FAKE_TOKEN
) {
// If reCAPTCHA Enterprise token is FAKE_TOKEN, fetch reCAPTCHA v2 token and inject into request.
if (request.captchaResponse === FAKE_TOKEN) {
_assert(
verifier?.type === RECAPTCHA_VERIFIER_TYPE,
authInstance,
Expand Down
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