/// <summary>
/// Prepare and send the http(s) request
/// </summary>
/// <returns></returns>
internal async Task SendRequest(bool enable100ContinueBehaviour, bool isTransparent, CancellationToken cancellationToken)
{
var upstreamProxy = Connection.UpStreamProxy;
bool useUpstreamProxy = upstreamProxy != null && upstreamProxy.ProxyType == ExternalProxyType.Http &&
!Connection.IsHttps;
var serverStream = Connection.Stream;
string?upstreamProxyUserName = null;
string?upstreamProxyPassword = null;
string url;
if (isTransparent)
{
url = Request.RequestUriString;
}
else if (!useUpstreamProxy)
{
if (UriExtensions.GetScheme(Request.RequestUriString8).Length == 0)
{
url = Request.RequestUriString;
}
else
{
url = Request.RequestUri.GetOriginalPathAndQuery();
}
}
else
{
url = Request.RequestUri.ToString();
// Send Authentication to Upstream proxy if needed
if (!string.IsNullOrEmpty(upstreamProxy !.UserName) && upstreamProxy.Password != null)
{
upstreamProxyUserName = upstreamProxy.UserName;
upstreamProxyPassword = upstreamProxy.Password;
}
}
if (url == string.Empty)
{
url = "/";
}
// prepare the request & headers
var headerBuilder = new HeaderBuilder();
headerBuilder.WriteRequestLine(Request.Method, url, Request.HttpVersion);
headerBuilder.WriteHeaders(Request.Headers, !isTransparent, upstreamProxyUserName, upstreamProxyPassword);
// write request headers
await serverStream.WriteHeadersAsync(headerBuilder, cancellationToken);
if (enable100ContinueBehaviour && Request.ExpectContinue)
{
// wait for expectation response from server
await ReceiveResponse(cancellationToken);
if (Response.StatusCode == (int)HttpStatusCode.Continue)
{
Request.ExpectationSucceeded = true;
}
else
{
Request.ExpectationFailed = true;
}
}
}
