37 lines
1.5 KiB
TypeScript
37 lines
1.5 KiB
TypeScript
export type RemotePattern = {
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protocol?: "http" | "https";
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hostname: string;
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port?: string;
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pathname: string;
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search?: string;
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};
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export type LocalPattern = {
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pathname: string;
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search?: string;
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};
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/**
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* Fetches an images.
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*
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* Local images (starting with a '/' as fetched using the passed fetcher).
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* Remote images should match the configured remote patterns or a 404 response is returned.
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*/
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export declare function fetchImage(fetcher: Fetcher | undefined, imageUrl: string, ctx: ExecutionContext): Promise<Response | undefined>;
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export declare function matchRemotePattern(pattern: RemotePattern, url: URL): boolean;
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export declare function matchLocalPattern(pattern: LocalPattern, url: URL): boolean;
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/**
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* Detects the content type by looking at the first few bytes of a file
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*
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* Based on https://github.com/vercel/next.js/blob/72c9635/packages/next/src/server/image-optimizer.ts#L155
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*
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* @param buffer The image bytes
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* @returns a content type of undefined for unsupported content
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*/
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export declare function detectContentType(buffer: Uint8Array): "image/svg+xml" | "image/jpeg" | "image/png" | "image/gif" | "image/webp" | "image/avif" | "image/x-icon" | "image/x-icns" | "image/tiff" | "image/bmp" | "image/jxl" | "image/heic" | "application/pdf" | "image/jp2" | undefined;
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declare global {
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var __IMAGES_REMOTE_PATTERNS__: RemotePattern[];
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var __IMAGES_LOCAL_PATTERNS__: LocalPattern[];
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var __IMAGES_ALLOW_SVG__: boolean;
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var __IMAGES_CONTENT_SECURITY_POLICY__: string;
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var __IMAGES_CONTENT_DISPOSITION__: string;
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}
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