Rocket.Chat/packages/rocketchat-custom-sounds/server/methods/uploadCustomSound.js

/* globals RocketChatFileCustomSoundsInstance */
Meteor.methods({
	uploadCustomSound(binaryContent, contentType, soundData) {
		if (!RocketChat.authz.hasPermission(this.userId, 'manage-sounds')) {
			throw new Meteor.Error('not_authorized');
		}

		const file = new Buffer(binaryContent, 'binary');

		const rs = RocketChatFile.bufferToStream(file);
		RocketChatFileCustomSoundsInstance.deleteFile(`${soundData._id}.${soundData.extension}`);
		const ws = RocketChatFileCustomSoundsInstance.createWriteStream(`${soundData._id}.${soundData.extension}`, contentType);
		ws.on('end', Meteor.bindEnvironment(() =>
			Meteor.setTimeout(() => RocketChat.Notifications.notifyAll('updateCustomSound', {soundData})
			, 500)
		));

		rs.pipe(ws);
	}
});