Firebase Email Verification Swift - ios

Question

I tried to use the Firebase Authentication, but in the login lets me in even when I haven't used the email to confirm the verification.
I have two Viewcontroller , one for Login and the other for signUP.
I can log in and I get the email for verification, but I can also log in in without verification.
public func sendVerificationMail() {
if self.authUser != nil && !self.authUser!.isEmailVerified {
self.authUser!.sendEmailVerification(completion: { (error) in
// Notify the user that the mail has sent or couldn't because of an error.
})
} else {
// Either the user is not available, or the user is already verified.
}
}
#IBAction func signupButtonTapped(_ sender: Any) {
print("Sign up button tapped")
Auth.auth().createUser(withEmail: self.userEmailTextField.text!, password: self.userPasswordTextField.text!) { (user, error) in
if user != nil {
print("User has Signed Up")
self.sendVerificationMail()
}
if error != nil {
print("User cant Sign Up")
}
}
}
#IBAction func signinButtonTapped(_ sender: Any) {
Auth.auth().signIn(withEmail: self.userEmailTextField.text!, password: self.userPasswordTextField.text!) { (user, error) in
if user != nil {
print("User has Signed In")
}
if error != nil {
print("Cant Sign in user")
} else {
self.performSegue(withIdentifier: "toHome", sender: nil)
}
}
}

Answer 1

Firebase Auth doesn't prevent people from signing in when their email isn't verified. If you want to prevent users from advancing when they aren't verified, you will need to code this on the client using the isEmailVerified boolean.
Auth.auth().signIn(withEmail: self.userEmailTextField.text!, password: self.userPasswordTextField.text!) { (authResult, error) in
if let authResult = authResult {
let user = authResult.user
print("User has Signed In")
if user.isEmailVerified {
self.performSegue(withIdentifier: "toHome", sender: nil)
} else {
// do whatever you want to do when user isn't verified
}
}
if let error = error {
print("Cant Sign in user")
}
}

Answer 2

A more comprehensive solution than that provided by #jen-person (and based on together with another SO answer) is this:
final class MySignInView: UIView { // or possibly MySignInViewController: UIViewController
// ... your properties etc...
#IBAction func signInButtonPressed(sender _: AnyObject) {
trySigningIn()
}
}
// MARK: Private
private extension MySignInView {
func trySigningIn() {
guard
let email = userEmailTextField.text,
let password = userPasswordTextField.text
else {
print("Cannot sign in, email or password is 'nil'")
return
}
do {
try signIn(email: email, password: password) { [unowned self] authResult in
self.userDidSignIn(authResult.user)
}
} catch {
// Display error
}
}
func userDidSignIn(_ user: FIRUser) {
// Creds to Jen: https://stackoverflow.com/a/51389154/1311272
guard user.isEmailVerified else {
// TODO display message about non verified email user?
return
}
performSegue(withIdentifier: "toHome", sender: nil)
}
}
// MARK: Error
private extension MySignInView {
enum Error: Strng, Equatable {
case invalidEmail
case userDisabled
case wrongPassword
case userNotFound
case networkError
case unknownError
}
}
// MARK: Firebae specific
private extension MySignInView {
func signIn(
email: String,
password: String,
onSuccessful: (AuthDataResult) -> Void
) throws {
Auth.auth().signIn(
withEmail: email,
password: password
) { (authResult, anyError) in
if let anyError = anyError {
if let error = Error(anyError: anyError) {
throw error
} else {
fatalError("Unsupported error: \(anyError)")
}
}
onSuccessful(authResult)
}
}
}
private extension MySignInView.Error {
init?(anyError: Swift.Error) {
guard let authErrorCode = FIRAuthErrorCode(rawValue: anyError.code) else {
return nil
}
self.init(fireBaseAuthErrorCode: authErrorCode)
}
// Creds goes to to: https://stackoverflow.com/a/39936083/1311272
init(fireBaseAuthErrorCode: FIRAuthErrorCode) {
switch errCode {
case .ErrorCodeInvalidEmail:
self = .invalidEmail
case .ErrorCodeUserDisabled:
self = .userDisabled
case .ErrorCodeWrongPassword:
self = .wrongPassword
case .ErrorCodeUserNotFound:
self = .userNotFound
case .ErrorCodeNetworkError:
self = .networkError
default:
self = .unknownError
}
}
}
You need to inform the user appropriately about the different errors/incorrect states of course, not only print.
This code should probably me moved to a ViewModel, and if your are not using MVVM, I highly recommend it :).

Answer 3

if let email = emailTextfield.text, let password = passwordTextfield.text {
Auth.auth().signIn(withEmail: email, password: password) { authResult, error in
if let e = error{
print(e.localizedDescription)
}
else {
//Do whatever you want to do after successful login
}
}
}

Answer 4

You can try this also:
if( !Auth.auth().currentUser!.isEmailVerified) {
// do something
}