Add email re-validation handling with UI feedback and backend validation to prevent duplicate email verification attempts

2025-08-23 22:59:22 +02:00
parent d1da1296bb
commit 42b11eecf1
4 changed files with 44 additions and 5 deletions
@@ -33,6 +33,14 @@ public class MailController implements MailApi {
    @RateLimit(limit = 5, timeValue = 1, timeUnit = TimeUnit.HOURS, key = "mailSubmit")
    public ResponseEntity<MailResponseDto> submitEmailForVerification(SubmitEmailDto submitEmailDto) {
        UUID uuid = AuthenticatedUuid.getAuthenticatedUserUuid();
+        boolean emailAlreadyVerified = mailVerificationService.listAll(uuid).stream()
+                                           .filter(EmailVerification::verified)
+                                           .map(EmailVerification::email)
+                                           .anyMatch(mail -> mail.equalsIgnoreCase(submitEmailDto.getEmail()));
+        if (emailAlreadyVerified) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Email already verified for user");
+        }
+
        EmailVerification saved = mailVerificationService.submitEmail(uuid, submitEmailDto.getEmail());
        MailResponseDto response = new MailResponseDto()
                .email(saved.email())