77 lines
2.5 KiB
TypeScript
77 lines
2.5 KiB
TypeScript
/// <reference types="node" />
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import type { OutputFormat, Uint8ArrayBuffer } from './array.js';
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/**
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* Options for base64 encoding
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*/
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export interface ToBase64Options {
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/** Whether to include padding characters (default: true for base64, false for base64url) */
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padding?: boolean;
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}
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/**
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* Padding mode for base64 decoding
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* - true: padding is required
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* - false: padding is not allowed
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* - 'both': padding is optional (default for base64)
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*/
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export type PaddingMode = boolean | 'both';
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/**
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* Options for base64 decoding
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*/
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export interface FromBase64Options {
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/** Output format (default: 'uint8') */
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format?: OutputFormat;
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/** Padding mode */
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padding?: PaddingMode;
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}
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/**
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* Encodes a Uint8Array to a base64 string (RFC 4648)
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* @param arr - The input bytes
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* @param options - Encoding options
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* @returns The base64 encoded string
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*/
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export function toBase64(arr: Uint8ArrayBuffer, options?: ToBase64Options): string;
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/**
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* Encodes a Uint8Array to a base64url string (RFC 4648)
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* @param arr - The input bytes
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* @param options - Encoding options (padding defaults to false)
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* @returns The base64url encoded string
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*/
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export function toBase64url(arr: Uint8ArrayBuffer, options?: ToBase64Options): string;
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/**
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* Decodes a base64 string to bytes
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* Operates in strict mode for last chunk, does not allow whitespace
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* @param str - The base64 encoded string
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* @param options - Decoding options
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* @returns The decoded bytes
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*/
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export function fromBase64(str: string, options?: FromBase64Options): Uint8ArrayBuffer;
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export function fromBase64(str: string, options: FromBase64Options & { format: 'buffer' }): Buffer;
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/**
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* Decodes a base64url string to bytes
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* Operates in strict mode for last chunk, does not allow whitespace
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* @param str - The base64url encoded string
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* @param options - Decoding options (padding defaults to false)
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* @returns The decoded bytes
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*/
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export function fromBase64url(str: string, options?: FromBase64Options): Uint8ArrayBuffer;
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export function fromBase64url(str: string, options: FromBase64Options & { format: 'buffer' }): Buffer;
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/**
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* Decodes either base64 or base64url string to bytes
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* Automatically detects the variant based on characters present
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* @param str - The base64 or base64url encoded string
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* @param options - Decoding options
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* @returns The decoded bytes
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*/
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export function fromBase64any(str: string, options?: FromBase64Options): Uint8ArrayBuffer;
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export function fromBase64any(str: string, options: FromBase64Options & { format: 'buffer' }): Buffer;
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