import { LicenseState, Logger } from '@n8n/backend-common';
import type { LdapConfig } from '@n8n/constants';
import { SettingsRepository, User } from '@n8n/db';
import type { RunningMode } from '@n8n/db';
import { Constructable } from '@n8n/di';
import type { IPasswordAuthHandler } from '@n8n/decorators';
import type { Entry as LdapUser } from 'ldapts';
import { Cipher } from 'n8n-core';
import { EventService } from '../../events/event.service';
export declare class LdapService implements IPasswordAuthHandler<User> {
    private readonly logger;
    private readonly settingsRepository;
    private readonly cipher;
    private readonly eventService;
    private readonly licenseState;
    readonly metadata: {
        name: string;
        type: "password";
    };
    private client;
    private ldapts;
    private syncTimer;
    config: LdapConfig;
    readonly userClass: Constructable<User>;
    constructor(logger: Logger, settingsRepository: SettingsRepository, cipher: Cipher, eventService: EventService, licenseState: LicenseState);
    init(): Promise<void>;
    loadConfig(): Promise<LdapConfig>;
    updateConfig(ldapConfig: LdapConfig): Promise<void>;
    setConfig(ldapConfig: LdapConfig): void;
    private setGlobalLdapConfigVariables;
    private setLdapLoginEnabled;
    private getClient;
    private bindAdmin;
    searchWithAdminBinding(filter: string): Promise<LdapUser[]>;
    private hasEmailDuplicatesInLdap;
    validUser(dn: string, password: string): Promise<void>;
    findAndAuthenticateLdapUser(loginId: string, password: string, loginIdAttribute: string, userFilter: string): Promise<LdapUser | undefined>;
    testConnection(): Promise<void>;
    private scheduleSync;
    runSync(mode: RunningMode): Promise<void>;
    stopSync(): void;
    private getUsersToProcess;
    private filterEmailDuplicates;
    private getUsersToCreate;
    private getUsersToUpdate;
    private getUsersToDisable;
    handleLogin(loginId: string, password: string): Promise<User | undefined>;
}