private static HttpConnectionKey GetConnectionKey(HttpRequestMessage request, Uri proxyUri, bool isProxyConnect)
{
Uri uri = request.RequestUri;
if (isProxyConnect)
{
Debug.Assert(uri == proxyUri);
return(new HttpConnectionKey(HttpConnectionKind.ProxyConnect, uri.IdnHost, uri.Port, null, proxyUri));
}
string sslHostName = null;
if (HttpUtilities.IsSupportedSecureScheme(uri.Scheme))
{
string hostHeader = request.Headers.Host;
if (hostHeader != null)
{
sslHostName = ParseHostNameFromHeader(hostHeader);
}
else
{
// No explicit Host header. Use host from uri.
sslHostName = uri.IdnHost;
}
}
if (proxyUri != null)
{
Debug.Assert(HttpUtilities.IsSupportedNonSecureScheme(proxyUri.Scheme));
if (sslHostName == null)
{
if (HttpUtilities.IsNonSecureWebSocketScheme(uri.Scheme))
{
// Non-secure websocket connection through proxy to the destination.
return(new HttpConnectionKey(HttpConnectionKind.ProxyTunnel, uri.IdnHost, uri.Port, null, proxyUri));
}
else
{
// Standard HTTP proxy usage for non-secure requests
// The destination host and port are ignored here, since these connections
// will be shared across any requests that use the proxy.
return(new HttpConnectionKey(HttpConnectionKind.Proxy, null, 0, null, proxyUri));
}
}
else
{
// Tunnel SSL connection through proxy to the destination.
return(new HttpConnectionKey(HttpConnectionKind.SslProxyTunnel, uri.IdnHost, uri.Port, sslHostName, proxyUri));
}
}
else if (sslHostName != null)
{
return(new HttpConnectionKey(HttpConnectionKind.Https, uri.IdnHost, uri.Port, sslHostName, null));
}
else
{
return(new HttpConnectionKey(HttpConnectionKind.Http, uri.IdnHost, uri.Port, null, null));
}
}
private static HttpConnectionKey GetConnectionKey(HttpRequestMessage request, Uri proxyUri, bool isProxyConnect)
{
Uri uri = request.RequestUri;
// If the hostname is an IPv6 address, uri.IdnHost will return the address without enclosing [].
// In this case, use uri.Host instead, which will correctly enclose with [].
// Note we don't need punycode encoding if it's an IP address, so using uri.Host is fine.
bool isIPv6Address = uri.HostNameType == UriHostNameType.IPv6;
if (isProxyConnect)
{
Debug.Assert(uri == proxyUri);
return(new HttpConnectionKey(HttpConnectionKind.ProxyConnect, isIPv6Address ? uri.Host : uri.IdnHost, uri.Port, null, proxyUri));
}
string sslHostName = null;
if (HttpUtilities.IsSupportedSecureScheme(uri.Scheme))
{
string hostHeader = request.Headers.Host;
if (hostHeader != null)
{
sslHostName = ParseHostNameFromHeader(hostHeader);
}
else
{
// No explicit Host header. Use host from uri.
sslHostName = uri.IdnHost;
}
}
if (proxyUri != null)
{
Debug.Assert(HttpUtilities.IsSupportedNonSecureScheme(proxyUri.Scheme));
if (sslHostName == null)
{
if (HttpUtilities.IsNonSecureWebSocketScheme(uri.Scheme))
{
// Non-secure websocket connection through proxy to the destination.
return(new HttpConnectionKey(HttpConnectionKind.ProxyTunnel, isIPv6Address ? uri.Host : uri.IdnHost, uri.Port, null, proxyUri));
}
else
{
// Standard HTTP proxy usage for non-secure requests
// The destination host and port are ignored here, since these connections
// will be shared across any requests that use the proxy.
return(new HttpConnectionKey(HttpConnectionKind.Proxy, null, 0, null, proxyUri));
}
}
else
{
// Tunnel SSL connection through proxy to the destination.
return(new HttpConnectionKey(HttpConnectionKind.SslProxyTunnel, isIPv6Address ? uri.Host : uri.IdnHost, uri.Port, sslHostName, proxyUri));
}
}
else if (sslHostName != null)
{
return(new HttpConnectionKey(HttpConnectionKind.Https, isIPv6Address ? uri.Host : uri.IdnHost, uri.Port, sslHostName, null));
}
else
{
return(new HttpConnectionKey(HttpConnectionKind.Http, isIPv6Address ? uri.Host : uri.IdnHost, uri.Port, null, null));
}
}
