validation.py 文件源码

def _is_valid_query(params, expected_params):
    """
    Function to validate get request params.
    """

    # If expected params, check them. If not, pass.
    if expected_params:
        for param in expected_params:
            # If the expected param is in the query.
            if param in params:
                for check, rule in expected_params[param].__dict__.items():
                    if rule is not None:
                        error_message = "QueryParam [%s] failed validation check [%s]:[%s]" % (param, check, rule)
                        if check == "minLength":
                            if len(params.get(param)) < rule:
                                raise ValidationError(error_message)
                        elif check == "maxLength":
                            if len(params.get(param)) > rule:
                                raise ValidationError(error_message)
            # Isn't in the query but it is required, throw a validation exception.
            elif expected_params[param].required is True:
                raise ValidationError("QueryParam [%s] failed validation check [Required]:[True]" % param)

    # TODO Add more checks here.
    return True