import { ObservableMap } from 'mobx';
import { CubaApp, EntityAttrPermissionValue, EffectivePermsInfo, EntityOperationType } from '@cuba-platform/rest';
export declare class Security {
    private cubaREST;
    attrPermissionCache: ObservableMap<string, EntityAttrPermissionValue>;
    private effectivePermissions?;
    private restSupportEffectivePerms;
    permissionsRequestCount: number;
    constructor(cubaREST: CubaApp);
    /**
     * Indicates whether the permissions data has been successfully loaded from backend.
     * NOTE: will always return `true` if the REST API version doesn't support effective permissions
     * (REST API version < 7.2).
     */
    get isDataLoaded(): boolean;
    /**
     * Returns current user permissions.
     */
    get permissions(): EffectivePermsInfo;
    getAttributePermission: (entityName: string, attributeName: string) => EntityAttrPermissionValue;
    /**
     * Returns a boolean indicating whether the current user is allowed to upload files.
     * This is convenience method that checks whether a user has a `create` operation permission
     * on `sys$FileDescriptor` entity and `cuba.restApi.fileUpload.enabled` specific permission.
     */
    canUploadAndLinkFile: () => boolean;
    /**
     * Returns a boolean indicating whether a given entity operation permission is granted
     * to the current user.
     *
     * @param entityName
     * @param operation
     */
    isOperationPermissionGranted: (entityName: string, operation: EntityOperationType) => boolean;
    /**
     * Returns a boolean indicating whether a given entity attribute permission is granted
     * to the current user.
     *
     * @param entityName
     * @param attrName
     * @param requiredAttrPerm
     */
    isAttributePermissionGranted: (entityName: string, attrName: string, requiredAttrPerm: Exclude<EntityAttrPermissionValue, 'DENY'>) => boolean;
    /**
     * Returns a boolean indicating whether a given specific permission is granted
     * to the current user.
     *
     * @param target
     */
    isSpecificPermissionGranted: (target: string) => boolean;
    loadPermissions(): Promise<void>;
}