Rocket.Chat/app/spotify/lib/spotify.js

const process = (message, source, callback) => {
	if (!source?.trim()) {
		return;
	}

	const msgParts = source.split(/(```\w*[\n ]?[\s\S]*?```+?)|(`(?:[^`]+)`)/);
	for (let index = 0; index < msgParts.length; index++) {
		const part = msgParts[index];
		if (!/(?:```(\w*)[\n ]?([\s\S]*?)```+?)|(?:`(?:[^`]+)`)/.test(part)) {
			callback(message, msgParts, index, part);
		}
	}
};

export const createSpotifyBeforeSaveMessageHandler = () => (message) => {
	const urls = Array.isArray(message.urls) ? message.urls : [];

	let changed = false;

	process(message, message.msg, (message, msgParts, index, part) => {
		const re = /(?:^|\s)spotify:([^:\s]+):([^:\s]+)(?::([^:\s]+))?(?::(\S+))?(?:\s|$)/g;

		let match;
		while ((match = re.exec(part)) != null) {
			const data = match.slice(1).filter(Boolean);
			const path = data.map((value) => encodeURI(value)).join('/');
			const url = `https://open.spotify.com/${ path }`;
			urls.push({ url, source: `spotify:${ data.join(':') }` });
			changed = true;
		}
	});

	if (changed) {
		message.urls = urls;
	}

	return message;
};