Function validateFontFilename

api/cdn/src/validate.ts:10–39

(file: string, metadata: IDResponse)

	!Number.isNaN(Number(num));

export const validateFontFilename = (file: string, metadata: IDResponse) => {
	const [filename, extension] = file.split('.');
	if (!extension || !isAcceptedExtension(extension)) {
		throw new StatusError(400, 'Bad Request. Invalid file extension.');
	}

	if (file === 'download.zip') {
		return;
	}

	const { weights, styles, subsets } = metadata;

	const filenameArr = filename.split('-');
	const style = filenameArr.pop();
	const weight = filenameArr.pop();
	const subset = filenameArr.join('-');

	// Accept id-subset-weight-style
	if (
		style &&
		// It could also be a numbered subset
		(subsets.includes(subset) || isNumeric(subset)) &&
		weights.includes(Number(weight)) &&
		styles.includes(style)
	) {
		return;
	}

	throw new StatusError(404, 'Not Found. Invalid filename.');
};

export const validateVariableFontFileName = (
	file: string,