jschan - Anonymous imageboard software. Classic look, modern features and feel. Works without JavaScript and supports Tor, I2P, Lokinet, etc.
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'use strict';
const imageMimeTypes = new Set([
'image/jpeg',
'image/pjpeg',
'image/png',
'image/bmp',
]);
const animatedImageMimeTypes = new Set([
'image/gif',
'image/webp',
'image/apng',
]);
const videoMimeTypes = new Set([
'video/quicktime',
'video/mp4',
'video/webm',
]);
module.exports = (mimetype, options) => {
return (options.video && videoMimeTypes.has(mimetype)) ||
(options.image && imageMimeTypes.has(mimetype)) ||
(options.animatedImage && animatedImageMimeTypes.has(mimetype));
};