42 lines
1.2 KiB
TypeScript
42 lines
1.2 KiB
TypeScript
import type { Readable } from 'stream';
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import * as plugins from './smartmime.plugins.js';
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import { binaryMimeTypes } from './binary.js';
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// TODO: evaluate where this is actually used
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export const supportedFileTypes = ['json', 'html', 'svg', 'jpg', 'ts', 'js'];
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export const detectMimeType = async (optionsArg: {
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path?: string;
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buffer?: Uint8Array;
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stream?: Readable;
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}): Promise<plugins.fileType.FileTypeResult> => {
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if (optionsArg.path) {
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return {
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mime: plugins.mime.getType(optionsArg.path),
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ext: plugins.path.extname(optionsArg.path),
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} as plugins.fileType.FileTypeResult;
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} else if (optionsArg.buffer) {
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return plugins.fileType.fileTypeFromBuffer(optionsArg.buffer);
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} else if (optionsArg.stream) {
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return plugins.fileType.fileTypeFromStream(optionsArg.stream);
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}
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};
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export const isBinary = async (optionsArg: {
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path?: string;
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buffer?: Uint8Array;
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stream?: Readable;
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}) => {
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const mimeType = await detectMimeType(optionsArg);
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return binaryMimeTypes.includes(mimeType.mime);
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};
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export const getEncoding = async (optionsArg: {
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path?: string;
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buffer?: Uint8Array;
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stream?: Readable;
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}) => {
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return (await isBinary(optionsArg)) ? 'binary' : 'utf8';
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};
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