src/vs/base/common/mime.ts

136 LOC · 126 covered · 10 uncovered · 9 ranges · 5282 concepts · 5 introducers · 2651 tests

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  /*---------------------------------------------------------------------------------------------
  
mime.ts ×5

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   *  Copyright (c) Microsoft Corporation. All rights reserved.
  
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   *  Licensed under the MIT License. See License.txt in the project root for license information.
  
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   *--------------------------------------------------------------------------------------------*/
  
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  import { extname } from './path.js';
  
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  export const Mimes = Object.freeze({
  
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  	text: 'text/plain',
  
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  	binary: 'application/octet-stream',
  
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  	unknown: 'application/unknown',
  
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  	markdown: 'text/markdown',
  
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  	latex: 'text/latex',
  
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  	uriList: 'text/uri-list',
  
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  	html: 'text/html',
  
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  });
  
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  interface MapExtToMediaMimes {
  
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  	[index: string]: string | string[];
  
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  }
  
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  const mapExtToTextMimes: Record<string, string> = {
  
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  	'.css': 'text/css',
  
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  	'.csv': 'text/csv',
  
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  	'.htm': 'text/html',
  
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  	'.html': 'text/html',
  
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  	'.ics': 'text/calendar',
  
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  	'.js': 'text/javascript',
  
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  	'.mjs': 'text/javascript',
  
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  	'.txt': 'text/plain',
  
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  	'.xml': 'text/xml'
  
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  };
  
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  // Known media mimes that we can handle
  
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  const mapExtToMediaMimes: MapExtToMediaMimes = {
  
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  	'.aac': 'audio/x-aac',
  
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  	'.avi': 'video/x-msvideo',
  
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  	'.bmp': 'image/bmp',
  
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  	'.flv': 'video/x-flv',
  
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  	'.gif': 'image/gif',
  
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  	'.ico': 'image/x-icon',
  
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  	'.jpe': ['image/jpg', 'image/jpeg'],
  
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  	'.jpeg': ['image/jpg', 'image/jpeg'],
  
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  	'.jpg': ['image/jpg', 'image/jpeg'],
  
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  	'.m1v': 'video/mpeg',
  
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  	'.m2a': 'audio/mpeg',
  
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  	'.m2v': 'video/mpeg',
  
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  	'.m3a': 'audio/mpeg',
  
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  	'.mid': 'audio/midi',
  
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  	'.midi': 'audio/midi',
  
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  	'.mk3d': 'video/x-matroska',
  
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  	'.mks': 'video/x-matroska',
  
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  	'.mkv': 'video/x-matroska',
  
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  	'.mov': 'video/quicktime',
  
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  	'.movie': 'video/x-sgi-movie',
  
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  	'.mp2': 'audio/mpeg',
  
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  	'.mp2a': 'audio/mpeg',
  
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  	'.mp3': 'audio/mpeg',
  
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  	'.mp4': 'video/mp4',
  
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  	'.mp4a': 'audio/mp4',
  
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  	'.mp4v': 'video/mp4',
  
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  	'.mpe': 'video/mpeg',
  
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  	'.mpeg': 'video/mpeg',
  
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  	'.mpg': 'video/mpeg',
  
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  	'.mpg4': 'video/mp4',
  
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  	'.mpga': 'audio/mpeg',
  
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  	'.oga': 'audio/ogg',
  
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  	'.ogg': 'audio/ogg',
  
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  	'.opus': 'audio/opus',
  
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  	'.ogv': 'video/ogg',
  
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  	'.png': 'image/png',
  
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  	'.psd': 'image/vnd.adobe.photoshop',
  
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  	'.qt': 'video/quicktime',
  
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  	'.spx': 'audio/ogg',
  
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  	'.svg': 'image/svg+xml',
  
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  	'.tga': 'image/x-tga',
  
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  	'.tif': 'image/tiff',
  
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  	'.tiff': 'image/tiff',
  
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  	'.wav': 'audio/x-wav',
  
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  	'.webm': 'video/webm',
  
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  	'.webp': 'image/webp',
  
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  	'.wma': 'audio/x-ms-wma',
  
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  	'.wmv': 'video/x-ms-wmv',
  
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  	'.woff': 'application/font-woff',
  
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  };
  
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  export function getMediaOrTextMime(path: string): string | undefined {
  
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  	const ext = extname(path);
  
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  	const textMime = mapExtToTextMimes[ext.toLowerCase()];
  
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  	if (textMime !== undefined) {
  
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  		return textMime;
  
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  	} else {
  
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  		return getMediaMime(path);
  
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  	}
  
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  }
  
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mime.ts ×5

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  export function getMediaMime(path: string): string | undefined {
  
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  	const ext = extname(path);
  
mime.ts ×1

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  	const mimeType = mapExtToMediaMimes[ext.toLowerCase()];
  
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  	return Array.isArray(mimeType) ? mimeType[0] : mimeType;
  
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  }
  
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mime.ts ×5

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  export function getExtensionForMimeType(mimeType: string): string | undefined {
  
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  	for (const extension in mapExtToMediaMimes) {
  
mime.ts ×1

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  		const value = mapExtToMediaMimes[extension];
  
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  		if (Array.isArray(value) ? value.includes(mimeType) : value === mimeType) {
  
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  			return extension;
  
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  		}
  
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  	}
  
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mime.ts ×1

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  	return undefined;
  
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  }
  
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mime.ts ×5

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  const _simplePattern = /^(.+)\/(.+?)(;.+)?$/;
  
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  export function normalizeMimeType(mimeType: string): string;
  
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  export function normalizeMimeType(mimeType: string, strict: true): string | undefined;
  
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  export function normalizeMimeType(mimeType: string, strict?: true): string | undefined {
  
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mime.ts ×1

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  	const match = _simplePattern.exec(mimeType);
  
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  	if (!match) {
  
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  		return strict
  
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  			? undefined
  
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  			: mimeType;
  
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  	}
  
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  	// https://datatracker.ietf.org/doc/html/rfc2045#section-5.1
  
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  	// media and subtype must ALWAYS be lowercase, parameter not
  
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  	return `${match[1].toLowerCase()}/${match[2].toLowerCase()}${match[3] ?? ''}`;
  
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  }
  
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mime.ts ×5

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  /**
  
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   * Whether the provided mime type is a text stream like `stdout`, `stderr`.
  
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   */
  
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  export function isTextStreamMime(mimeType: string) {
  
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  	return ['application/vnd.code.notebook.stdout', 'application/vnd.code.notebook.stderr'].includes(mimeType);
  
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  }