public async Task <IHttpWebResponse> GetResponseAsync()
{
try
{
using (var clientHandler = (HttpClientHandler)HttpMessageHandlerFactory.GetMessageHandler(this.UseDefaultCredentials))
return(await GetResponseAsync(clientHandler));
}
catch (HttpRequestException ex)
{
var innerException = (WebException)ex.InnerException;
HttpStatusCode statusCode = (innerException?.Response as HttpWebResponse)?.StatusCode ?? 0;
if (statusCode != HttpStatusCode.ProxyAuthenticationRequired)
{
throw;
}
//Got proxy authenication failure (407) - configuring proxy
var proxyUrl = innerException.Response.ResponseUri;
using (
var clientHandler =
(HttpClientHandler)HttpMessageHandlerFactory.GetMessageHandler(this.UseDefaultCredentials))
{
HttpMessageHandlerFactory.InvokeUpdateWebProxy(clientHandler, proxyUrl);
return(await GetResponseAsync(clientHandler));
}
}
}
public async Task <IHttpWebResponse> GetResponseAsync()
{
using (HttpClient client =
new HttpClient(HttpMessageHandlerFactory.GetMessageHandler(this.UseDefaultCredentials)))
{
client.MaxResponseContentBufferSize = _maxResponseSizeInBytes;
client.DefaultRequestHeaders.Accept.Clear();
HttpRequestMessage requestMessage = new HttpRequestMessage();
requestMessage.RequestUri = new Uri(uri);
requestMessage.Headers.Accept.Clear();
requestMessage.Headers.Accept.Add(
new MediaTypeWithQualityHeaderValue(this.Accept ?? "application/json"));
foreach (KeyValuePair <string, string> kvp in this.Headers)
{
requestMessage.Headers.Add(kvp.Key, kvp.Value);
}
bool addCorrelationId = (this.CallState != null && this.CallState.CorrelationId != Guid.Empty);
if (addCorrelationId)
{
requestMessage.Headers.Add(OAuthHeader.CorrelationId, this.CallState.CorrelationId.ToString());
requestMessage.Headers.Add(OAuthHeader.RequestCorrelationIdInResponse, "true");
}
client.Timeout = TimeSpan.FromMilliseconds(this._timeoutInMilliSeconds);
HttpResponseMessage responseMessage;
try
{
if (this.BodyParameters != null)
{
HttpContent content;
if (this.BodyParameters is StringRequestParameters)
{
content = new StringContent(this.BodyParameters.ToString(), Encoding.UTF8,
this.ContentType);
}
else
{
content = new FormUrlEncodedContent(((DictionaryRequestParameters)this.BodyParameters)
.ToList());
}
requestMessage.Method = HttpMethod.Post;
requestMessage.Content = content;
}
else
{
requestMessage.Method = HttpMethod.Get;
}
responseMessage = await client.SendAsync(requestMessage).ConfigureAwait(false);
}
catch (TaskCanceledException ex)
{
throw new HttpRequestWrapperException(null, ex);
}
IHttpWebResponse webResponse = await CreateResponseAsync(responseMessage).ConfigureAwait(false);
if (!responseMessage.IsSuccessStatusCode)
{
try
{
throw new HttpRequestException(
string.Format(CultureInfo.CurrentCulture,
" Response status code does not indicate success: {0} ({1}).",
(int)webResponse.StatusCode, webResponse.StatusCode),
new AdalException(webResponse.ResponseString));
}
catch (HttpRequestException ex)
{
throw new HttpRequestWrapperException(webResponse, ex);
}
}
if (addCorrelationId)
{
VerifyCorrelationIdHeaderInReponse(webResponse.Headers);
}
return(webResponse);
}
}