Function parse

packages/common/server/parser-user-agent.ts:157–239

(ua: string)

}

const parse = (ua: string): UAParser.IResult => {
  // Check cache first
  const cached = parseCache.get(ua);
  if (cached) {
    return cached;
  }

  const parser = new UAParser(ua);
  let res = parser.getResult();

  // Some user agents are not detected correctly by ua-parser-js
  // Doing some extra checks for ios
  if (!res.device.model && !res.os.name) {
    const iphone = isIphone(ua);
    if (iphone) {
      const result = {
        ...res,
        device: {
          ...res.device,
          model: iphone.model,
          vendor: 'Apple',
        },
        os: {
          ...res.os,
          name: iphone.os,
          version: iphone.osVersion,
        },
      };
      parseCache.set(ua, result);
      return result;
    }
  }

  // Mozilla/5.0 (iPad; iPadOS 18_0; like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/18.0
  if (res.device.model === 'iPad' && !res.os.version) {
    const osVersion = ua.match(IPAD_OS_VERSION_REGEX);
    if (osVersion) {
      res = {
        ...res,
        os: {
          ...res.os,
          version: osVersion[1]!.replace(/_/g, '.'),
        },
      };
    }
  }

  // Extract app-style UA info (e.g., "Model=Redmi Note 8 Pro; Manufacturer=Xiaomi")
  // This handles UAs from mobile apps that include device info in a custom format
  const appInfo = extractAppStyleInfo(ua);
  if (appInfo.model || appInfo.manufacturer) {
    const model = res.device.model || appInfo.model;
    const vendor =
      res.device.vendor || appInfo.manufacturer || detectBrand(ua, model);

    res = {
      ...res,
      device: {