import { ParameterType } from "./decorators";
import { Logger } from "./logger";
import { RouteError } from "./error";
import { BadWordsFilter } from "./utils/bad-words";
export declare let badWordsFilter: BadWordsFilter;
export declare function validateInput(val: any, role: ParameterType | undefined, logger: Logger): boolean;
export type PropertyValidateType = {
    /** Regular expression matching */
    is?: RegExp | Array<RegExp>;
    /** Whether it is an email address */
    isEmail?: boolean;
    /** Whether it is a phone number */
    isPhone?: boolean;
    /** Whether to allow only letters */
    isAlpha?: boolean;
    /** Allow letters and numbers */
    isAlphanumeric?: boolean;
    /** Numeric value */
    isNumeric?: boolean;
    /** Integer value */
    isInt?: boolean;
    /** Whether it is a URL */
    isUrl?: boolean;
    /** Character containment */
    contains?: string;
    /** Whether the value is within an array */
    isIn?: Array<any>;
    /** Length restriction */
    len?: [number, number] | {
        max?: number;
        min?: number;
    };
    /** Size restriction, generally used for file size judgment (KB) */
    fileSize?: [number, number] | {
        max?: number;
        min?: number;
    };
    /** Number of files, default is up to 1 file */
    fileCount?: number;
    /** Allowed file formats */
    fileMimeType?: string | string[];
    /** Maximum numerical value */
    max?: number;
    /** Minimum numerical value */
    min?: number;
    /** Custom validation function */
    customValidate?: (val: any) => boolean;
    /** Bad word detection: true will block access, "clean" will automatically filter */
    badWords?: boolean | "clean";
};
export declare class InputContentValidateError extends RouteError {
    code: string;
    nonSystemException: boolean;
    clearStack: boolean;
}