@myog-io/ngx-chunk-file-upload-base/src/file-upload/file-type.class.ts

Angular file upload directives with Chunk Upload

import { FileLikeObject } from './file-like-object.class';

export class FileType {
	/*  MS office  */
	public static mime_doc: string[] = [
		'application/msword',
		'application/msword',
		'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
		'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
		'application/vnd.ms-word.document.macroEnabled.12',
		'application/vnd.ms-word.template.macroEnabled.12',
	];
	public static mime_xsl: string[] = [
		'application/vnd.ms-excel',
		'application/vnd.ms-excel',
		'application/vnd.ms-excel',
		'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
		'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
		'application/vnd.ms-excel.sheet.macroEnabled.12',
		'application/vnd.ms-excel.template.macroEnabled.12',
		'application/vnd.ms-excel.addin.macroEnabled.12',
		'application/vnd.ms-excel.sheet.binary.macroEnabled.12',
	];
	public static mime_ppt: string[] = [
		'application/vnd.ms-powerpoint',
		'application/vnd.ms-powerpoint',
		'application/vnd.ms-powerpoint',
		'application/vnd.ms-powerpoint',
		'application/vnd.openxmlformats-officedocument.presentationml.presentation',
		'application/vnd.openxmlformats-officedocument.presentationml.template',
		'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
		'application/vnd.ms-powerpoint.addin.macroEnabled.12',
		'application/vnd.ms-powerpoint.presentation.macroEnabled.12',
		'application/vnd.ms-powerpoint.presentation.macroEnabled.12',
		'application/vnd.ms-powerpoint.slideshow.macroEnabled.12',
	];

	/* PSD */
	public static mime_psd: string[] = [
		'image/photoshop',
		'image/x-photoshop',
		'image/psd',
		'application/photoshop',
		'application/psd',
		'zz-application/zz-winassoc-psd',
	];

	/* Compressed files */
	public static mime_compress: string[] = [
		'application/x-gtar',
		'application/x-gcompress',
		'application/compress',
		'application/x-tar',
		'application/x-rar-compressed',
		'application/octet-stream',
		'application/x-zip-compressed',
		'application/zip-compressed',
		'application/x-7z-compressed',
		'application/gzip',
		'application/x-bzip2',
	];

	public static getMimeClass(file: FileLikeObject): string {
		let mimeClass = 'application';
		if (this.mime_psd.indexOf(file.type) !== -1) {
			mimeClass = 'image';
		} else if (file.type.match('image.*')) {
			mimeClass = 'image';
		} else if (file.type.match('video.*')) {
			mimeClass = 'video';
		} else if (file.type.match('audio.*')) {
			mimeClass = 'audio';
		} else if (file.type === 'application/pdf') {
			mimeClass = 'pdf';
		} else if (this.mime_compress.indexOf(file.type) !== -1) {
			mimeClass = 'compress';
		} else if (this.mime_doc.indexOf(file.type) !== -1) {
			mimeClass = 'doc';
		} else if (this.mime_xsl.indexOf(file.type) !== -1) {
			mimeClass = 'xls';
		} else if (this.mime_ppt.indexOf(file.type) !== -1) {
			mimeClass = 'ppt';
		}
		if (mimeClass === 'application') {
			mimeClass = this.fileTypeDetection(file.name);
		}

		return mimeClass;
	}

	public static fileTypeDetection(inputFilename: string): string {
		const types: { [key: string]: string } = {
			jpg: 'image',
			jpeg: 'image',
			tif: 'image',
			psd: 'image',
			bmp: 'image',
			png: 'image',
			nef: 'image',
			tiff: 'image',
			cr2: 'image',
			dwg: 'image',
			cdr: 'image',
			ai: 'image',
			indd: 'image',
			pin: 'image',
			cdp: 'image',
			skp: 'image',
			stp: 'image',
			'3dm': 'image',
			mp3: 'audio',
			wav: 'audio',
			wma: 'audio',
			mod: 'audio',
			m4a: 'audio',
			compress: 'compress',
			zip: 'compress',
			rar: 'compress',
			'7z': 'compress',
			lz: 'compress',
			z01: 'compress',
			bz2: 'compress',
			gz: 'compress',
			pdf: 'pdf',
			xls: 'xls',
			xlsx: 'xls',
			ods: 'xls',
			mp4: 'video',
			avi: 'video',
			wmv: 'video',
			mpg: 'video',
			mts: 'video',
			flv: 'video',
			'3gp': 'video',
			vob: 'video',
			m4v: 'video',
			mpeg: 'video',
			m2ts: 'video',
			mov: 'video',
			doc: 'doc',
			docx: 'doc',
			eps: 'doc',
			txt: 'doc',
			odt: 'doc',
			rtf: 'doc',
			ppt: 'ppt',
			pptx: 'ppt',
			pps: 'ppt',
			ppsx: 'ppt',
			odp: 'ppt',
		};

		const chunks = inputFilename.split('.');
		if (chunks.length < 2) {
			return 'application';
		}
		const extension = chunks[chunks.length - 1].toLowerCase();
		if (types[extension] === undefined) {
			return 'application';
		} else {
			return types[extension];
		}
	}
}