private async Task <WebResponse> SendRequest()
{
if (RequestSubmitted)
{
throw new InvalidOperationException(SR.net_reqsubmitted);
}
var handler = new HttpClientHandler();
var request = new HttpRequestMessage(new HttpMethod(_originVerb), _requestUri);
using (var client = new HttpClient(handler))
{
if (_requestStream != null)
{
ArraySegment <byte> bytes = _requestStream.GetBuffer();
request.Content = new ByteArrayContent(bytes.Array, bytes.Offset, bytes.Count);
}
// set up the various properties
handler.AutomaticDecompression = AutomaticDecompression;
handler.Credentials = _credentials;
handler.AllowAutoRedirect = AllowAutoRedirect;
handler.MaxAutomaticRedirections = MaximumAutomaticRedirections;
handler.MaxResponseHeadersLength = MaximumResponseHeadersLength;
if (_cookieContainer != null)
{
handler.CookieContainer = _cookieContainer;
Debug.Assert(handler.UseCookies); // Default of handler.UseCookies is true.
}
else
{
handler.UseCookies = false;
}
Debug.Assert(handler.UseProxy); // Default of handler.UseProxy is true.
Debug.Assert(handler.Proxy == null); // Default of handler.Proxy is null.
if (_proxy == null)
{
handler.UseProxy = false;
}
else
{
handler.Proxy = _proxy;
}
handler.ClientCertificates.AddRange(ClientCertificates);
// Set relevant properties from ServicePointManager
handler.CheckCertificateRevocationList = ServicePointManager.CheckCertificateRevocationList;
RemoteCertificateValidationCallback rcvc = ServerCertificateValidationCallback != null ?
ServerCertificateValidationCallback :
ServicePointManager.ServerCertificateValidationCallback;
if (rcvc != null)
{
RemoteCertificateValidationCallback localRcvc = rcvc;
handler.ServerCertificateCustomValidationCallback = (message, cert, chain, errors) => localRcvc(this, cert, chain, errors);
}
// Copy the HttpWebRequest request headers from the WebHeaderCollection into HttpRequestMessage.Headers and
// HttpRequestMessage.Content.Headers.
foreach (string headerName in _webHeaderCollection)
{
// The System.Net.Http APIs require HttpRequestMessage headers to be properly divided between the request headers
// collection and the request content headers collection for all well-known header names. And custom headers
// are only allowed in the request headers collection and not in the request content headers collection.
if (IsWellKnownContentHeader(headerName))
{
if (request.Content == null)
{
// Create empty content so that we can send the entity-body header.
request.Content = new ByteArrayContent(Array.Empty <byte>());
}
request.Content.Headers.TryAddWithoutValidation(headerName, _webHeaderCollection[headerName]);
}
else
{
request.Headers.TryAddWithoutValidation(headerName, _webHeaderCollection[headerName]);
}
}
request.Headers.TransferEncodingChunked = SendChunked;
_sendRequestTask = client.SendAsync(
request,
_allowReadStreamBuffering ? HttpCompletionOption.ResponseContentRead : HttpCompletionOption.ResponseHeadersRead,
_sendRequestCts.Token);
HttpResponseMessage responseMessage = await _sendRequestTask.ConfigureAwait(false);
HttpWebResponse response = new HttpWebResponse(responseMessage, _requestUri, _cookieContainer);
if (!responseMessage.IsSuccessStatusCode)
{
throw new WebException(
SR.Format(SR.net_servererror, (int)response.StatusCode, response.StatusDescription),
null,
WebExceptionStatus.ProtocolError,
response);
}
return(response);
}
}
private async Task <WebResponse> SendRequest()
{
if (RequestSubmitted)
{
throw new InvalidOperationException(SR.net_reqsubmitted);
}
var handler = new HttpClientHandler();
var client = new HttpClient(handler);
var request = new HttpRequestMessage(new HttpMethod(_originVerb), _requestUri);
if (_requestStream != null)
{
ArraySegment <byte> bytes = _requestStream.GetBuffer();
request.Content = new ByteArrayContent(bytes.Array, bytes.Offset, bytes.Count);
}
// Set to match original defaults of HttpWebRequest.
// HttpClientHandler.AutomaticDecompression defaults to true; set it to false to match the desktop behavior
handler.AutomaticDecompression = DecompressionMethods.None;
handler.Credentials = _credentials;
if (_cookieContainer != null)
{
handler.CookieContainer = _cookieContainer;
Debug.Assert(handler.UseCookies); // Default of handler.UseCookies is true.
}
else
{
handler.UseCookies = false;
}
Debug.Assert(handler.UseProxy); // Default of handler.UseProxy is true.
Debug.Assert(handler.Proxy == null); // Default of handler.Proxy is null.
if (_proxy == null)
{
handler.UseProxy = false;
}
else
{
handler.Proxy = _proxy;
}
// Copy the HttpWebRequest request headers from the WebHeaderCollection into HttpRequestMessage.Headers and
// HttpRequestMessage.Content.Headers.
foreach (string headerName in _webHeaderCollection)
{
// The System.Net.Http APIs require HttpRequestMessage headers to be properly divided between the request headers
// collection and the request content headers colllection for all well-known header names. And custom headers
// are only allowed in the request headers collection and not in the request content headers collection.
if (IsWellKnownContentHeader(headerName))
{
if (request.Content == null)
{
// Create empty content so that we can send the entity-body header.
request.Content = new ByteArrayContent(Array.Empty <byte>());
}
request.Content.Headers.TryAddWithoutValidation(headerName, _webHeaderCollection[headerName]);
}
else
{
request.Headers.TryAddWithoutValidation(headerName, _webHeaderCollection[headerName]);
}
}
_sendRequestTask = client.SendAsync(
request,
_allowReadStreamBuffering ? HttpCompletionOption.ResponseContentRead : HttpCompletionOption.ResponseHeadersRead,
_sendRequestCts.Token);
HttpResponseMessage responseMessage = await _sendRequestTask.ConfigureAwait(false);
HttpWebResponse response = new HttpWebResponse(responseMessage, _requestUri, _cookieContainer);
if (!responseMessage.IsSuccessStatusCode)
{
throw new WebException(
SR.Format(SR.net_servererror, (int)response.StatusCode, response.StatusDescription),
null,
WebExceptionStatus.ProtocolError,
response);
}
return(response);
}