public async Task <IPAddress> GetMyIpAsync(IPVersion ver = IPVersion.IPv4, CancellationToken cancel = default)
{
string url;
if (ver == IPVersion.IPv4)
{
url = Consts.Urls.GetMyIpUrl_IPv4;
}
else
{
url = Consts.Urls.GetMyIpUrl_IPv6;
}
Exception error = new CoresLibException("Unknown Error");
IPAddress?ret = null;
for (int i = 0; i < CoresConfig.GetMyIpClientSettings.NumRetry; i++)
{
try
{
WebRet webRet = await Web.SimpleQueryAsync(WebMethods.GET, url, cancel);
string str = webRet.Data._GetString_Ascii()._OneLine("");
if (str.StartsWith("IP=", StringComparison.OrdinalIgnoreCase))
{
ret = IPAddress.Parse(str.Substring(3));
break;
}
else
{
throw new ApplicationException($"Invalid IP str: \"{str}\"");
}
}
catch (Exception ex)
{
error = ex;
}
}
if (ret == null)
{
throw error !;
}
return(ret);
}
public async Task <GetMyIpInfoResult> GetMyIpInfoAsync(IPVersion ver = IPVersion.IPv4, CancellationToken cancel = default)
{
string url;
if (ver == IPVersion.IPv4)
{
url = Consts.Urls.GetMyIpUrl_IPv4;
}
else
{
url = Consts.Urls.GetMyIpUrl_IPv6;
}
url += "?port=true&fqdn=true";
Exception error = new CoresLibException("Unknown Error");
GetMyIpInfoResult?ret = null;
for (int i = 0; i < CoresConfig.GetMyIpClientSettings.NumRetry; i++)
{
try
{
WebRet webRet = await Web.SimpleQueryAsync(WebMethods.GET, url, cancel);
string str = webRet.Data._GetString_UTF8();
IPAddress?ip = null;
string fqdn = "";
int port = 0;
foreach (string line in str._GetLines(true))
{
if (line._GetKeyAndValue(out string key, out string value, "="))
{
key = key.ToUpperInvariant();
switch (key)
{
case "IP":
ip = value._NonNullTrim()._ToIPAddress(ver == IPVersion.IPv4 ? AllowedIPVersions.IPv4 : AllowedIPVersions.IPv6);
break;
case "FQDN":
fqdn = value._NonNullTrim();
break;
case "PORT":
port = value._NonNullTrim()._ToInt();
break;
}
}
}
if (ip != null && port != 0)
{
if (fqdn._IsEmpty())
{
fqdn = ip.ToString();
}
ret = new GetMyIpInfoResult(ip, port, fqdn, null !);
break;
}
else
{
throw new ApplicationException($"Invalid GetMyIp Server reply str: \"{str}\"");
}
}
catch (Exception ex)
{
error = ex;
}
}
if (ret == null)
{
throw error !;
}
return(ret);
}