import { type RequestOptions, type IncomingHttpHeaders } from 'urllib';
import type { OSSRequestParams, OSSResult, RequestParameters } from './type/Request.js';
export interface OSSBaseClientInitOptions {
    /** access key you create */
    accessKeyId: string;
    /** access secret you create */
    accessKeySecret: string;
    /**
     * oss region domain. It takes priority over region.
     * e.g.:
     * - oss-cn-shanghai.aliyuncs.com
     * - oss-cn-shanghai-internal.aliyuncs.com
     */
    endpoint: string;
    /** the bucket data region location, please see Data Regions, default is oss-cn-hangzhou. */
    region?: string | undefined;
    /** access OSS with aliyun internal network or not, default is false. If your servers are running on aliyun too, you can set true to save lot of money. */
    internal?: boolean | undefined;
    /** instance level timeout for all operations, default is 60s */
    timeout?: number | string;
    isRequestPay?: boolean;
}
export type OSSBaseClientOptions = Required<OSSBaseClientInitOptions> & {
    timeout: number;
};
export declare abstract class OSSBaseClient {
    #private;
    protected readonly options: OSSBaseClientOptions;
    constructor(options: OSSBaseClientInitOptions);
    /** public methods */
    /**
     * get OSS signature
     */
    signature(stringToSign: string): string;
    /** protected methods */
    /**
     * get author header
     *
     * "Authorization: OSS " + Access Key Id + ":" + Signature
     *
     * Signature = base64(hmac-sha1(Access Key Secret + "\n"
     *  + VERB + "\n"
     *  + CONTENT-MD5 + "\n"
     *  + CONTENT-TYPE + "\n"
     *  + DATE + "\n"
     *  + CanonicalizedOSSHeaders
     *  + CanonicalizedResource))
     */
    protected authorization(method: string, resource: string, headers: IncomingHttpHeaders, subResource?: RequestParameters): string;
    /**
     * encodeURIComponent name except '/'
     */
    protected escape(name: string): string;
    protected abstract getRequestEndpoint(): string;
    protected getRequestURL(params: Pick<OSSRequestParams, 'object' | 'query' | 'subResource'>): string;
    getResource(params: {
        bucket?: string;
        object?: string;
    }): string;
    createHttpClientRequestParams(params: OSSRequestParams): {
        url: string;
        options: RequestOptions;
    };
    /**
     * request oss server
     */
    protected request<T = any>(params: OSSRequestParams): Promise<OSSResult<T>>;
}