/// <reference types="express" />
import { Provider, ValueOrPromise } from '@loopback/core';
import { Request } from '@loopback/rest';
import { FlclError, FlclLoggerLb4 } from 'fc-logger';
import { SecurityValidationResult } from '../types';
export type LoggerConfig = {
    className: string;
    methodName: string;
};
/**
 * Security validator provider that provides comprehensive security validation
 * Renamed from ValidatorService for better clarity
 */
export declare class SecurityValidationProvider implements Provider<SecurityValidationProvider> {
    private logger?;
    private flclError?;
    constructor(logger?: FlclLoggerLb4 | undefined, flclError?: FlclError | undefined);
    value(): ValueOrPromise<SecurityValidationProvider>;
    /**
     * Validate entire request for security threats
     */
    validateSecurityRequest(request: Request): Promise<SecurityValidationResult>;
    /**
     * Validate request body for security threats
     */
    validateRequestBody(request: Request): Promise<SecurityValidationResult>;
    /**
     * Validate query parameters for security threats
     */
    validateQueryParams(request: Request): Promise<SecurityValidationResult>;
    /**
     * Validate URL parameters for security threats
     */
    validateUrlParams(request: Request): Promise<SecurityValidationResult>;
    /**
     * Legacy validate method for backward compatibility
     */
    validate(request: Request, loggerConfig?: LoggerConfig): Promise<void>;
    /**
     * Validate object for common security threats
     */
    private validateObjectSecurity;
    /**
     * Check for SQL injection patterns in object
     */
    private checkForSQLInjectionInObject;
    /**
     * Check for XSS patterns in object
     */
    private checkForXSSInObject;
    /**
     * Check for oversized data that could indicate DoS attempt
     */
    private checkForOversizedData;
    /**
     * Traverse object looking for regex patterns
     */
    private traverseObjectForPatterns;
    /**
     * Traverse object checking for size issues
     */
    private traverseObjectForSize;
}
export { SecurityValidationProvider as ValidatorService };