Python django.core.validators 模块，EmailValidator() 实例源码

def validate_mailto(self, parts, verify_exists=False):
        """
        Validates a mailto URL, by using Django's EmailValidator.
        `verify_exists` does nothing at this time.

        :param parts:
        :param verify_exists:
        :return:
        """
        validator = EmailValidator()
        try:
            validator(parts['path'])
        except ValidationError:
            return False
        else:
            return True

def is_email(string):
    from django.core.exceptions import ValidationError
    from django.core.validators import EmailValidator

    validator = EmailValidator()
    try:
        validator(string)
    except ValidationError:
        return False

    return True

def login(email: str, password: str) -> tuple:

    allowed_domains = AD_ALLOWED_DOMAINS + [AD_REALM]

    validate_email = EmailValidator(whitelist=allowed_domains)

    if '@' in email:
        try:
            validate_email(email)
        except ValidationError as e:
            raise ADLoginError({'error_message': str(e)})

        username, domain = email.split('@')
    else:
        # If no @ used then try to use AD_DEFAULT_DOMAIN
        username, domain = email, AD_DEFAULT_DOMAIN
        email = '{username}@{domain}'.format(
            username=username,
            domain=domain
        )

    if domain not in allowed_domains:
        raise ADLoginError({'error_message': 'Invalid domain in e-mail'})

    try:
        checkPassword(username, password, "", AD_REALM)
    except BasicAuthError as e:
        errmsg, _junk = e.args
        if errmsg == "Cannot contact any KDC for requested realm":
            errmsg = "Error connecting to KERBEROS server"
            raise KerberosLoginError({"error_message": errmsg})
        elif errmsg == "Decrypt integrity check failed":
            errmsg = "KERBEROS account or password incorrect"
            raise KerberosLoginError({"error_message": errmsg})
        else:
            raise KerberosLoginError({"error_message": errmsg})
    except Exception as e:
        raise ADLoginError({'error_message': str(e)})

    # Lookup email and username from AD
    (ldap_email, ldap_fullname) = None, None
    try:
        ldap_email, ldap_fullname = do_ldap_search(username, password)
    except Exception as e:
        pass

    # Return a fullname property if available from LDAP query.
    if ldap_fullname:
        username = ldap_fullname

    if ldap_email:
        email = ldap_email

    return (email, username)