check is email is freeze user email

api/controllers/console/auth/error.py

@@ -113,3 +113,8 @@ class MemberNotInTenantError(BaseHTTPException):
     error_code = "member_not_in_tenant"
     description = "The member is not in the workspace."
     code = 400
+
+class AccountInFreezeError(BaseHTTPException):
+    error_code = "account_in_freeze"
+    description = "This email is temporarily unavailable."
+    code = 400

api/controllers/console/workspace/account.py

@@ -14,6 +14,7 @@ from controllers.console.auth.error import (
     EmailCodeError,
     InvalidEmailError,
     InvalidTokenError,
+    AccountInFreezeError
 )
 from controllers.console.error import AccountNotFound, EmailSendIpLimitError
 from controllers.console.workspace.error import (
@@ -488,6 +489,9 @@ class ChangeEmailResetApi(Resource):
         if not AccountService.check_email_unique(args["new_email"]):
             raise EmailAlreadyInUseError()
 
+        if AccountService.is_account_in_freeze(args["new_email"]):
+            raise AccountInFreezeError()
+
         old_email = reset_data.get("old_email", "")
         if current_user.email != old_email:
             raise AccountNotFound()

api/services/account_service.py

@@ -671,6 +671,12 @@ class AccountService:
 
         return account
 
+    @classmethod
+    def is_account_in_freeze(cls, email: str) -> bool:
+        if dify_config.BILLING_ENABLED and BillingService.is_email_in_freeze(email):
+            return True
+        return False
+
     @staticmethod
     @redis_fallback(default_return=None)
     def add_login_error_rate_limit(email: str) -> None: