Function checkNetworkConnectivity

speedtest/speedtest.ts:970–986

()

  } catch (error: any) {
    if (error.code === 'ENOTFOUND') {
      return { connected: false, message: "DNS解析失败，请检查DNS设置" };
    } else if (error.code === 'ECONNREFUSED') {
      return { connected: false, message: "连接被拒绝，可能存在防火墙阻止" };
    } else if (error.code === 'ETIMEDOUT') {
      return { connected: false, message: "连接超时，网络可能较慢或不稳定" };
    } else {
      return { connected: false, message: `网络连接异常: ${error.message}` };
    }
  }
}

async function saveSpeedtestImage(url: string): Promise<string | null> {
  try {
    const imageUrl = url + ".png";
    const response = await axios.get(imageUrl, { responseType: "arraybuffer" });
    const imagePath = path.join(TEMP_DIR, "speedtest.png");
    const filledImagePath = path.join(TEMP_DIR, "speedtest_filled.png");
    fs.writeFileSync(imagePath, response.data);

    const bgColor = "#212338";