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docs(auth): add documentation about errors code when Email Enumeration Protection is activated (#18084)
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Lines changed: 49 additions & 15 deletions

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‎docs/auth/password-auth.md‎

Lines changed: 15 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -73,14 +73,28 @@ try {
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password: password
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);
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} on FirebaseAuthException catch (e) {
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if (e.code == 'user-not-found') {
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if (e.code == 'invalid-credential') {
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// Email or password is incorrect. Projects with email enumeration
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// protection enabled (the default since September 2023) return this
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// code instead of 'user-not-found' or 'wrong-password'.
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print('Invalid email or password.');
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} else if (e.code == 'user-not-found') {
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// Only returned when email enumeration protection is disabled.
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print('No user found for that email.');
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} else if (e.code == 'wrong-password') {
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// Only returned when email enumeration protection is disabled.
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print('Wrong password provided for that user.');
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}
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}
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```
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Note: Since September 2023, Firebase enables
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[email enumeration protection](https://cloud.google.com/identity-platform/docs/admin/email-enumeration-protection)
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by default on new projects. With this feature enabled, `user-not-found` and
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`wrong-password` error codes are replaced by `invalid-credential` to prevent
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revealing whether an email address is registered. You can manage this setting in
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the Firebase console under **Authentication > Settings**.
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Caution: When a user uninstalls your app on iOS or macOS, the user's authentication
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state can persist between app re-installs, as the Firebase iOS SDK persists
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authentication state to the system keychain.

‎packages/firebase_auth/firebase_auth/lib/src/firebase_auth.dart‎

Lines changed: 17 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -535,11 +535,19 @@ class FirebaseAuth extends FirebasePluginPlatform {
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/// - Thrown if the email address is not valid.
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/// - **user-disabled**:
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/// - Thrown if the user corresponding to the given email has been disabled.
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/// - **user-not-found**:
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/// - **user-not-found** _(deprecated)_:
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/// - Thrown if there is no user corresponding to the given email.
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/// - **wrong-password**:
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/// **Note:** This code is no longer returned on projects that have
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/// [email enumeration protection](https://cloud.google.com/identity-platform/docs/admin/email-enumeration-protection)
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/// enabled (the default for new projects since September 2023).
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/// Use **invalid-credential** instead.
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/// - **wrong-password** _(deprecated)_:
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/// - Thrown if the password is invalid for the given email, or the account
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/// corresponding to the email does not have a password set.
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/// **Note:** This code is no longer returned on projects that have
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/// [email enumeration protection](https://cloud.google.com/identity-platform/docs/admin/email-enumeration-protection)
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/// enabled (the default for new projects since September 2023).
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/// Use **invalid-credential** instead.
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/// - **too-many-requests**:
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/// - Thrown if the user sent too many requests at the same time, for security
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/// the api will not allow too many attempts at the same time, user will have
@@ -550,11 +558,13 @@ class FirebaseAuth extends FirebasePluginPlatform {
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/// - **network-request-failed**:
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/// - Thrown if there was a network request error, for example the user
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/// doesn't have internet connection
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/// - **INVALID_LOGIN_CREDENTIALS** or **invalid-credential**:
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/// - Thrown if the password is invalid for the given email, or the account
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/// corresponding to the email does not have a password set.
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/// Depending on if you are using firebase emulator or not the code is
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/// different
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/// - **invalid-credential**:
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/// - Thrown if the email or password is incorrect. On projects with
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/// [email enumeration protection](https://cloud.google.com/identity-platform/docs/admin/email-enumeration-protection)
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/// enabled (the default since September 2023), this replaces
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/// **user-not-found** and **wrong-password** to prevent revealing
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/// whether an account exists. On the Firebase emulator, the code may
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/// appear as **INVALID_LOGIN_CREDENTIALS**.
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/// - **operation-not-allowed**:
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/// - Thrown if email/password accounts are not enabled. Enable
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/// email/password accounts in the Firebase Console, under the Auth tab.

‎packages/firebase_auth/firebase_auth_platform_interface/lib/src/platform_interface/platform_interface_firebase_auth.dart‎

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Original file line numberDiff line numberDiff line change
@@ -514,11 +514,19 @@ abstract class FirebaseAuthPlatform extends PlatformInterface {
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/// - Thrown if the email address is not valid.
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/// - **user-disabled**:
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/// - Thrown if the user corresponding to the given email has been disabled.
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/// - **user-not-found**:
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/// - **user-not-found** _(deprecated)_:
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/// - Thrown if there is no user corresponding to the given email.
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/// - **wrong-password**:
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/// **Note:** This code is no longer returned on projects that have
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/// [email enumeration protection](https://cloud.google.com/identity-platform/docs/admin/email-enumeration-protection)
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/// enabled (the default for new projects since September 2023).
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/// Use **invalid-credential** instead.
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/// - **wrong-password** _(deprecated)_:
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/// - Thrown if the password is invalid for the given email, or the account
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/// corresponding to the email does not have a password set.
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/// **Note:** This code is no longer returned on projects that have
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/// [email enumeration protection](https://cloud.google.com/identity-platform/docs/admin/email-enumeration-protection)
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/// enabled (the default for new projects since September 2023).
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/// Use **invalid-credential** instead.
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/// - **too-many-requests**:
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/// - Thrown if the user sent too many requests at the same time, for security
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/// the api will not allow too many attempts at the same time, user will have
@@ -529,11 +537,13 @@ abstract class FirebaseAuthPlatform extends PlatformInterface {
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/// - **network-request-failed**:
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/// - Thrown if there was a network request error, for example the user
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/// doesn't have internet connection
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/// - **INVALID_LOGIN_CREDENTIALS** or **invalid-credential**:
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/// - Thrown if the password is invalid for the given email, or the account
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/// corresponding to the email does not have a password set.
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/// Depending on if you are using firebase emulator or not the code is
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/// different
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/// - **invalid-credential**:
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/// - Thrown if the email or password is incorrect. On projects with
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/// [email enumeration protection](https://cloud.google.com/identity-platform/docs/admin/email-enumeration-protection)
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/// enabled (the default since September 2023), this replaces
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/// **user-not-found** and **wrong-password** to prevent revealing
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/// whether an account exists. On the Firebase emulator, the code may
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/// appear as **INVALID_LOGIN_CREDENTIALS**.
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/// - **operation-not-allowed**:
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/// - Thrown if email/password accounts are not enabled. Enable
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/// email/password accounts in the Firebase Console, under the Auth tab.

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