Function getFavicon

apps/api/src/controllers/misc.controller.ts:232–396

(
  request: FastifyRequest<{
    Querystring: GetFaviconParams;
  }>,
  reply: FastifyReply,
)

}

export async function getFavicon(
  request: FastifyRequest<{
    Querystring: GetFaviconParams;
  }>,
  reply: FastifyReply,
) {
  try {
    logger.info({ url: request.query.url }, 'getFavicon');
    const url = validateUrl(request.query.url);
    if (!url) {
      return reply
        .status(404)
        .header('Content-Type', 'text/plain')
        .send('Not found');
    }

    const cacheKey = createCacheKey(url.toString());

    // Check cache first
    const cached = await getFromCacheBinary(cacheKey);
    if (cached) {
      reply.header('Content-Type', cached.contentType);
      reply.header('Cache-Control', 'public, max-age=604800, immutable');
      return reply.send(cached.buffer);
    }

    let imageUrl: URL;
    // If it's a direct image URL, use it directly
    if (isDirectImage(url)) {
      imageUrl = url;
    } else {
      logger.info({ url: url.toString() }, 'before parseUrlMeta');
      // For website URLs, extract favicon from HTML
      const meta = await parseUrlMeta(url.toString());
      logger.info(
        { url: url.toString(), favicon: meta?.favicon },
        'parseUrlMeta result',
      );
      if (meta?.favicon) {
        imageUrl = new URL(meta.favicon);
      } else {
        // Try standard favicon location first
        const { origin } = url;
        imageUrl = new URL(`${origin}/favicon.ico`);
      }
    }

    logger.info(
      {
        originalUrl: url.toString(),
        imageUrl: imageUrl.toString(),
      },
      'Fetching favicon',
    );

    // Fetch the image
    let { buffer, contentType, status } = await fetchImage(imageUrl);