| 968 | } |
| 969 | |
| 970 | async function checkNetworkConnectivity(): Promise<{ connected: boolean; message: string }> { |
| 971 | try { |
| 972 | // 测试基本网络连接 |
| 973 | await axios.get('https://www.speedtest.net', { timeout: 10000 }); |
| 974 | return { connected: true, message: "网络连接正常" }; |
| 975 | } catch (error: any) { |
| 976 | if (error.code === 'ENOTFOUND') { |
| 977 | return { connected: false, message: "DNS解析失败，请检查DNS设置" }; |
| 978 | } else if (error.code === 'ECONNREFUSED') { |
| 979 | return { connected: false, message: "连接被拒绝，可能存在防火墙阻止" }; |
| 980 | } else if (error.code === 'ETIMEDOUT') { |
| 981 | return { connected: false, message: "连接超时，网络可能较慢或不稳定" }; |
| 982 | } else { |
| 983 | return { connected: false, message: `网络连接异常: ${error.message}` }; |
| 984 | } |
| 985 | } |
| 986 | } |
| 987 | |
| 988 | async function saveSpeedtestImage(url: string): Promise<string | null> { |
| 989 | try { |