73 lines
3.1 KiB
TypeScript
73 lines
3.1 KiB
TypeScript
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/// <reference types="node" />
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/// <reference types="node" />
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/// <reference types="node" />
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import type { IncomingMessage, ServerResponse } from 'http';
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import { type UrlWithParsedQuery } from 'url';
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import type { ImageConfigComplete } from '../shared/lib/image-config';
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import type { NextConfigComplete } from './config-shared';
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import type { NextUrlWithParsedQuery } from './request-meta';
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import type { IncrementalCacheEntry, IncrementalCacheValue } from './response-cache';
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type XCacheHeader = 'MISS' | 'HIT' | 'STALE';
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export interface ImageParamsResult {
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href: string;
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isAbsolute: boolean;
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isStatic: boolean;
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width: number;
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quality: number;
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mimeType: string;
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sizes: number[];
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minimumCacheTTL: number;
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}
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export declare function getHash(items: (string | number | Buffer)[]): string;
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/**
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* Inspects the first few bytes of a buffer to determine if
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* it matches the "magic number" of known file signatures.
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* https://en.wikipedia.org/wiki/List_of_file_signatures
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*/
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export declare function detectContentType(buffer: Buffer): "image/svg+xml" | "image/avif" | "image/webp" | "image/jpeg" | "image/png" | "image/x-icon" | "image/gif" | null;
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export declare class ImageOptimizerCache {
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private cacheDir;
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private nextConfig;
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static validateParams(req: IncomingMessage, query: UrlWithParsedQuery['query'], nextConfig: NextConfigComplete, isDev: boolean): ImageParamsResult | {
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errorMessage: string;
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};
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static getCacheKey({ href, width, quality, mimeType, }: {
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href: string;
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width: number;
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quality: number;
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mimeType: string;
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}): string;
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constructor({ distDir, nextConfig, }: {
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distDir: string;
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nextConfig: NextConfigComplete;
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});
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get(cacheKey: string): Promise<IncrementalCacheEntry | null>;
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set(cacheKey: string, value: IncrementalCacheValue | null, { revalidate, }: {
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revalidate?: number | false;
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}): Promise<void>;
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}
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export declare class ImageError extends Error {
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statusCode: number;
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constructor(statusCode: number, message: string);
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}
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export declare function getMaxAge(str: string | null): number;
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export declare function optimizeImage({ buffer, contentType, quality, width, height, nextConfigOutput, }: {
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buffer: Buffer;
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contentType: string;
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quality: number;
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width: number;
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height?: number;
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nextConfigOutput?: 'standalone' | 'export';
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}): Promise<Buffer>;
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export declare function imageOptimizer(_req: IncomingMessage, _res: ServerResponse, paramsResult: ImageParamsResult, nextConfig: NextConfigComplete, isDev: boolean | undefined, handleRequest: (newReq: IncomingMessage, newRes: ServerResponse, newParsedUrl?: NextUrlWithParsedQuery) => Promise<void>): Promise<{
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buffer: Buffer;
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contentType: string;
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maxAge: number;
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}>;
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export declare function sendResponse(req: IncomingMessage, res: ServerResponse, url: string, extension: string, buffer: Buffer, isStatic: boolean, xCache: XCacheHeader, imagesConfig: ImageConfigComplete, maxAge: number, isDev: boolean): void;
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export declare function getImageSize(buffer: Buffer, extension: 'avif' | 'webp' | 'png' | 'jpeg'): Promise<{
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width?: number;
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height?: number;
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}>;
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export {};
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