private async void GetInfoFromURL(string ipAddr, int timeout = 10000)
{
ipinfo = null;
bool cancelled = false;
string jsonStr = null;
using (WebClient wc = new WebClient())
{
wc.DownloadStringCompleted += (s, e) =>
{
if (e.Error != null || e.Cancelled)
{
cancelled = true;
jsonStr = null;
ipinfo = null;
textIP.Text = "ERROR";
}
else
{
jsonStr = e.Result;
ipinfo = JsonSerializer.Deserialize <IPInfo.IPInfo>(jsonStr);
SaveInfoToFile(ipinfo);
}
ShowResult(ipAddr);
};
Uri uri = new Uri($"http://free.ipwhois.io/json/{ipAddr}");
wc.DownloadStringAsync(uri); //
// ожидаем ответа
var currentTime = DateTime.Now;
while (jsonStr == null && !cancelled && DateTime.Now.Subtract(currentTime).TotalMilliseconds < timeout)
{
await Task.Delay(100);
}
}
}
private void SaveInfoToFile(IPInfo.IPInfo info = null)
{
if (info != null)
{
infoList.Add(info);
}
string serializedText = JsonSerializer.Serialize(infoList);
File.WriteAllText(FILENAME, serializedText);
}
private void GetInfoFromFile(string ipAddr)
{
ipinfo = null;
foreach (IPInfo.IPInfo i in infoList)
{
if (i.ip == ipAddr)
{
i.success = true;
ipinfo = i;
}
}
}