import { SignedEvent } from "./Events.js";
export type BlossomAuthAction = "get" | "upload" | "list" | "delete";
export type BlossomAuthEventOpts = {
    action: BlossomAuthAction;
    server: string;
    hashes?: string[];
    expiration?: number;
    content?: string;
};
export type BlossomServer = {
    url: string;
    pubkey?: string;
};
export type BlossomErrorResponse = {
    message: string;
    reason?: string;
};
export declare const makeBlossomAuthEvent: ({ action, server, hashes, expiration, content, }: BlossomAuthEventOpts) => {
    kind: number;
    content: string;
    tags: string[][];
    created_at: number;
};
export declare const buildBlobUrl: (server: string, sha256: string, extension?: string) => string;
export declare const checkBlobExists: (server: string, sha256: string, { headers, authEvent, }?: {
    headers?: Record<string, string>;
    authEvent?: SignedEvent;
}) => Promise<{
    exists: boolean;
    size?: number;
}>;
export declare const getBlob: (server: string, sha256: string, { headers, authEvent, range, }?: {
    headers?: Record<string, string>;
    authEvent?: SignedEvent;
    range?: {
        start: number;
        end?: number;
    };
}) => Promise<Response>;
export declare const canUploadBlob: (server: string, { headers, authEvent, }?: {
    headers?: Record<string, string>;
    authEvent?: SignedEvent;
}) => Promise<Response>;
export declare const uploadBlob: (server: string, blob: Blob | ArrayBuffer, { headers, authEvent, }?: {
    headers?: Record<string, string>;
    authEvent?: SignedEvent;
}) => Promise<Response>;
export declare const deleteBlob: (server: string, sha256: string, { headers, authEvent, }?: {
    headers?: Record<string, string>;
    authEvent?: SignedEvent;
}) => Promise<Response>;
export declare const listBlobs: (server: string, pubkey: string, { headers, authEvent, since, until, }?: {
    headers?: Record<string, string>;
    authEvent?: SignedEvent;
    since?: number;
    until?: number;
}) => Promise<Response>;
export interface EncryptedFile {
    key: string;
    nonce: string;
    ciphertext: Uint8Array;
    algorithm: string;
}
export declare function encryptFile(file: Blob): Promise<EncryptedFile>;
export declare function decryptFile({ key, nonce, ciphertext, algorithm, }: EncryptedFile): Promise<Uint8Array>;
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