public override bool Equals(object obj)
{
if (obj is null)
{
return(false);
}
if (ReferenceEquals(this, obj))
{
return(true);
}
DomainEndPoint other = obj as DomainEndPoint;
if (other == null)
{
return(false);
}
if (!_address.Equals(other._address, StringComparison.CurrentCultureIgnoreCase))
{
return(false);
}
if (_port != other._port)
{
return(false);
}
return(true);
}
public static async Task <IPEndPoint> GetIPEndPointAsync(this EndPoint ep)
{
switch (ep.AddressFamily)
{
case AddressFamily.InterNetwork:
case AddressFamily.InterNetworkV6:
return(ep as IPEndPoint);
case AddressFamily.Unspecified:
DomainEndPoint dep = ep as DomainEndPoint;
if (dep == null)
{
throw new NotSupportedException("AddressFamily not supported.");
}
IPAddress[] ipAddresses = await System.Net.Dns.GetHostAddressesAsync(dep.Address);
if (ipAddresses.Length == 0)
{
throw new SocketException((int)SocketError.HostNotFound);
}
return(new IPEndPoint(ipAddresses[0], dep.Port));
default:
throw new NotSupportedException("AddressFamily not supported.");
}
}
protected override WebRequest GetWebRequest(Uri address)
{
HttpWebRequest request = null;
if (_proxy == null)
{
switch (_networkType)
{
case WebClientExNetworkType.IPv4Only:
if (IPAddress.TryParse(address.Host, out IPAddress ipv4))
{
if (ipv4.AddressFamily != System.Net.Sockets.AddressFamily.InterNetwork)
{
throw new WebException("WebClientEx current network type does not allow url address family: " + ipv4.AddressFamily.ToString());
}
request = base.GetWebRequest(address) as HttpWebRequest;
}
else
{
try
{
DnsClient dns = new DnsClient();
IPAddress[] ipAddresses = dns.ResolveIP(address.Host);
if (ipAddresses.Length == 0)
{
throw new WebException("WebClientEx could not resolve IPv4 address for host: " + address.Host);
}
foreach (IPAddress ipAddress in ipAddresses)
{
if (ipAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
Uri newAddress = new Uri(address.Scheme + "://" + ipAddress.ToString() + ":" + address.Port + address.PathAndQuery);
request = base.GetWebRequest(newAddress) as HttpWebRequest;
request.Host = address.Host;
break;
}
}
}
catch (DnsClientException ex)
{
throw new WebException("WebClientEx could not resolve IPv4 address for host: " + address.Host, ex);
}
if (request == null)
{
throw new WebException("WebClientEx could not resolve IPv4 address for host: " + address.Host);
}
}
break;
case WebClientExNetworkType.IPv6Only:
if (IPAddress.TryParse(address.Host, out IPAddress ipv6))
{
if (ipv6.AddressFamily != System.Net.Sockets.AddressFamily.InterNetworkV6)
{
throw new WebException("WebClientEx current network type does not allow url address family: " + ipv6.AddressFamily.ToString());
}
request = base.GetWebRequest(address) as HttpWebRequest;
}
else
{
try
{
DnsClient dns = new DnsClient(true);
IPAddress[] ipAddresses = dns.ResolveIP(address.Host, true);
if (ipAddresses.Length == 0)
{
throw new WebException("WebClientEx could not resolve IPv6 address for host: " + address.Host);
}
foreach (IPAddress ipAddress in ipAddresses)
{
if (ipAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6)
{
Uri newAddress = new Uri(address.Scheme + "://[" + ipAddress.ToString() + "]:" + address.Port + address.PathAndQuery);
request = base.GetWebRequest(newAddress) as HttpWebRequest;
request.Host = address.Host;
break;
}
}
}
catch (DnsClientException ex)
{
throw new WebException("WebClientEx could not resolve IPv6 address for host: " + address.Host, ex);
}
if (request == null)
{
throw new WebException("WebClientEx could not resolve IPv6 address for host: " + address.Host);
}
}
break;
default:
request = base.GetWebRequest(address) as HttpWebRequest;
break;
}
}
else
{
if ((_proxy.ViaProxy == null) && (_proxy.Type == NetProxyType.Http))
{
request = base.GetWebRequest(address) as HttpWebRequest;
request.Proxy = _proxy.HttpProxy;
}
else
{
EndPoint remoteEP;
if (IPAddress.TryParse(address.Host, out IPAddress ipAddr))
{
remoteEP = new IPEndPoint(ipAddr, address.Port);
}
else
{
remoteEP = new DomainEndPoint(address.Host, address.Port);
}
if ((_tunnelProxy != null) && !_tunnelProxy.RemoteEndPoint.Equals(remoteEP))
{
_tunnelProxy.Dispose();
}
if ((_tunnelProxy == null) || _tunnelProxy.Disposed)
{
_tunnelProxy = _proxy.CreateLocalTunnelProxy(remoteEP, _timeout);
}
if (address.Scheme == "https")
{
request = base.GetWebRequest(address) as HttpWebRequest;
request.Proxy = _tunnelProxy.EmulateHttpProxy();
}
else
{
request = base.GetWebRequest(new Uri("http://" + _tunnelProxy.TunnelEndPoint.Address.ToString() + ":" + _tunnelProxy.TunnelEndPoint.Port + address.PathAndQuery)) as HttpWebRequest;
request.Host = address.Host;
}
}
}
if (_timeout > 0)
{
request.Timeout = _timeout;
}
request.CookieContainer = _cookie;
if (_ifModifiedSince > (new DateTime()))
{
request.IfModifiedSince = _ifModifiedSince;
}
if (_userAgent != null)
{
request.UserAgent = _userAgent;
}
request.KeepAlive = _keepAlive;
request.AllowAutoRedirect = false;
if (_enableAutomaticDecompression)
{
request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
}
foreach (KeyValuePair <string, string> header in _headers)
{
switch (header.Key.ToLower())
{
case "accept":
request.Accept = header.Value;
break;
case "connection":
request.KeepAlive = (header.Value.ToLower() == "keep-alive");
break;
case "content-type":
request.ContentType = header.Value;
break;
case "user-agent":
request.UserAgent = header.Value;
break;
case "host":
request.Host = header.Value;
break;
default:
request.Headers.Add(header.Key, header.Value);
break;
}
}
return(request);
}
