protected override async Task <Stream> SendRemoteRequestInternalAsync()
{
IHttpWebRequest httpWebRequest = httpWebRequestFactory.Create("https://visualstudio-devdiv-c2s.msedge.net/ab");
httpWebRequest.Method = "GET";
httpWebRequest.CachePolicy = DefaultCachePolicy;
httpWebRequest.ContentType = "application/json";
httpWebRequest.AddHeaders(GetAllFilters());
Stream stream = null;
try
{
CancellationTokenSource tokenSource = new CancellationTokenSource();
Task.Delay(60000).ContinueWith(delegate
{
tokenSource.Cancel();
});
IHttpWebResponse httpWebResponse = await httpWebRequest.GetResponseAsync(tokenSource.Token).ConfigureAwait(false);
if (httpWebResponse.ErrorCode != 0)
{
return(stream);
}
stream = httpWebResponse.GetResponseStream();
return(stream);
}
catch
{
return(stream);
}
}
/// <summary>
/// Execute request and returns entityResponse - ASYNC.
/// </summary>
/// <param name="httpWebRequest">Http web request.</param>
/// <returns></returns>
protected async Task <IHttpWebResponse> ExecuteRequestAsync(IHttpWebRequest httpWebRequest)
{
this.PreExecuteRequest(httpWebRequest);
IHttpWebResponse httpWebResponse = await httpWebRequest.GetResponseAsync();
this.ProcessHttpWebResponseInternal(httpWebResponse);
return(httpWebResponse);
}
private async Task <string> ResolveUrlRedirect(string url, CancellationToken token)
{
IHttpWebRequest httpWebRequest = webRequestFactory.Create(url);
httpWebRequest.Method = "HEAD";
httpWebRequest.AllowAutoRedirect = false;
IHttpWebResponse httpWebResponse = await httpWebRequest.GetResponseAsync(token).ConfigureAwait(false);
if (httpWebResponse.ErrorCode == ErrorCode.NoError && httpWebResponse.Headers != null)
{
string text = httpWebResponse.Headers["Location"];
if (text != null)
{
return(text);
}
throw new TargetedNotificationsException("Could not resolve url redirect (no location header was received)");
}
throw new TargetedNotificationsException($"Could not resolve url redirect ({httpWebResponse.ErrorCode}-{httpWebResponse.StatusCode}-{httpWebResponse.ExceptionCode})");
}
private async Task <Stream> SendTargetedNotificationsRequestAsync(IEnumerable <string> previouslyCachedRuleIds)
{
Stream stream = null;
apiTimer = Stopwatch.StartNew();
try
{
CancellationTokenSource tokenSource = new CancellationTokenSource();
Task.Delay(10000).ContinueWith(delegate
{
tokenSource.Cancel();
});
CancellationToken cancelToken = CancellationTokenSource.CreateLinkedTokenSource(tokenSource.Token, cancellationTokenSource.Token).Token;
string parameters = await BuildRequestParametersAsync(previouslyCachedRuleIds).ConfigureAwait(false);
IHttpWebRequestFactory httpWebRequestFactory = webRequestFactory;
IHttpWebRequest request = httpWebRequestFactory.Create(await ResolveUrlRedirect("https://go.microsoft.com/fwlink/?LinkId=690387", cancelToken).ConfigureAwait(false));
request.ContentType = "application/json";
request.Method = "POST";
logger.LogVerbose("Sending request to TN backend", parameters);
byte[] postData = Encoding.UTF8.GetBytes(parameters);
request.ContentLength = postData.Length;
Stream postStream = await request.GetRequestStreamAsync().ConfigureAwait(false);
await postStream.WriteAsync(postData, 0, postData.Length, cancelToken).ConfigureAwait(false);
postStream.Close();
IHttpWebResponse httpWebResponse = await request.GetResponseAsync(cancelToken).ConfigureAwait(false);
apiTimer.Stop();
if (httpWebResponse.ErrorCode == ErrorCode.NoError)
{
stream = httpWebResponse.GetResponseStream();
}
else
{
string eventName = "VS/Core/TargetedNotifications/ApiRequestFailed";
string description = "Request failed.";
Dictionary <string, object> dictionary = new Dictionary <string, object>
{
{
"VS.Core.TargetedNotifications.ErrorCode",
httpWebResponse.ErrorCode
},
{
"VS.Core.TargetedNotifications.ApiResponseMs",
apiTimer?.ElapsedMilliseconds
},
{
"VS.Core.TargetedNotifications.Iteration",
queryIteration
}
};
if (httpWebResponse.ErrorCode == ErrorCode.WebExceptionThrown)
{
dictionary.Add("VS.Core.TargetedNotifications.WebExceptionCode", httpWebResponse.ExceptionCode);
}
targetedNotificationsTelemetry.PostDiagnosticFault(eventName, description, null, dictionary);
}
return(stream);
}
catch (Exception exception)
{
apiTimer.Stop();
string eventName2 = "VS/Core/TargetedNotifications/ApiRequestException";
string text = "Sending request to TN backend failed";
Dictionary <string, object> additionalProperties = new Dictionary <string, object>
{
{
"VS.Core.TargetedNotifications.ApiResponseMs",
apiTimer?.ElapsedMilliseconds
},
{
"VS.Core.TargetedNotifications.Iteration",
queryIteration
}
};
logger.LogError(text, exception);
targetedNotificationsTelemetry.PostDiagnosticFault(eventName2, text, exception, additionalProperties);
return(stream);
}
}