public async Task <LocalIpHistory> SaveIpInfo(string ip, string lastIp)
{
if (string.IsNullOrEmpty(ip))
{
throw new Exception("保存IP信息失败，当前IP不能为空。");
}
LocalIpHistory ipHistory = new LocalIpHistory()
{
IP = ip,
LastIP = lastIp,
UpdateTs = TimeUtil.Timestamp()
};
using (CustumDbContext db = new CustumDbContext())
{
ipHistory = db.LocalIpHistory.Add(ipHistory).Entity;
//自动删除24h之前的数据
if (ConfigManager.Now.AppSettings.IsEnableAutoClearHistoryIP)
{
string sql = $"DELETE FROM {nameof(LocalIpHistory)} WHERE {nameof(LocalIpHistory.UpdateTs)} < {TimeUtil.Timestamp() - 24 * 60 * 60}";
await db.Database.ExecuteSqlRawAsync(sql);
}
if (await db.SaveChangesAsync() > 0)
{
return(ipHistory);
}
else
{
throw new Exception($"保存IP数据失败，IP：{ip}");
}
}
}
public async Task <LocalIpHistory> GetLastIpInfo()
{
using (CustumDbContext db = new CustumDbContext())
{
LocalIpHistory ipHistory = await db.LocalIpHistory.OrderByDescending(c => c.UpdateTs).FirstOrDefaultAsync();
return(ipHistory);
}
}
static async void Start()
{
Log.Info("Ddns service starting.");
bool isFirst = ConfigManager.Now.DdnsConfig.IsEnableDdns;
while (!token.IsCancellationRequested)
{
try
{
LocalIPInfo ipHelper = new LocalIPInfo();
string ip = await ipHelper.GetLocalIp();
Log.Info($"当前网络环境外网IP：{ip}");
if (isFirst)
{
isFirst = false;
if (ConfigManager.Now.DdnsConfig.IsEnableDdns)
{
new DomainDdnsService().UpdateDomainInfo(ip);
}
else
{
Log.Info($"DDNS服务已关闭，跳过初次启动更新IP地址。");
}
}
LocalIpHistory lastIp = await dataManager.GetLastIpInfo();
if (lastIp == null || lastIp.IP != ip)
await DoDifferentAction(ip, lastIp == null ? "0.0.0.0" : lastIp.IP);
else
Log.Info($"当前网络环境外网IP[{ip}]未发生变化。");
if (await dataManager.SaveIpInfo(ip, lastIp == null ? "0.0.0.0" : lastIp.IP) != null)
Log.Info($"当前IP[{ip}]已记录。");
await Delay();
}
catch (TaskCanceledException)
{
break;
}
catch (Exception ex)
{
Log.Warn(ex.Message, ex);
await Delay();
}
}
}
