public void OverrideHttpPrefix()
{
// Couldn't find a way to "officially" unregister a prefix but that shouldn't stop us
var prefixListProperty = typeof(WebRequest).GetProperty("PrefixList", BindingFlags.Static | BindingFlags.NonPublic);
var oldPrefixList = prefixListProperty.GetValue(null);
WebRequest.RegisterPrefix("http://", new CustomWebRequestCreator());
// Make sure we properly hooked the WebRequest factory
Assert.IsType <FakeWebRequest>(WebRequest.Create("http://localhost/"));
try
{
var factory = new ApiWebRequestFactory();
var request = factory.Create(new Uri("http://localhost"));
Assert.NotNull(request);
}
finally
{
// Unregister the prefix
prefixListProperty.SetValue(null, oldPrefixList);
}
// Make sure we properly restored the old WebRequest factory
Assert.IsType <HttpWebRequest>(WebRequest.Create("http://localhost/"));
}
private IApiRequestFactory GetRequestFactory(ImmutableTracerSettings settings)
{
IApiRequestFactory factory = null;
TimeSpan agentlessTimeout = TimeSpan.FromSeconds(15);
#if NETCOREAPP
Log.Information("Using {FactoryType} for trace transport.", nameof(HttpClientRequestFactory));
factory = new HttpClientRequestFactory(settings.ExporterSettings.AgentUri, AgentHttpHeaderNames.DefaultHeaders, timeout: agentlessTimeout);
#else
Log.Information("Using {FactoryType} for trace transport.", nameof(ApiWebRequestFactory));
factory = new ApiWebRequestFactory(settings.ExporterSettings.AgentUri, AgentHttpHeaderNames.DefaultHeaders, timeout: agentlessTimeout);
#endif
if (!string.IsNullOrWhiteSpace(_settings.ProxyHttps))
{
var proxyHttpsUriBuilder = new UriBuilder(_settings.ProxyHttps);
var userName = proxyHttpsUriBuilder.UserName;
var password = proxyHttpsUriBuilder.Password;
proxyHttpsUriBuilder.UserName = string.Empty;
proxyHttpsUriBuilder.Password = string.Empty;
if (proxyHttpsUriBuilder.Scheme == "https")
{
// HTTPS proxy is not supported by .NET BCL
Log.Error($"HTTPS proxy is not supported. ({proxyHttpsUriBuilder})");
return(factory);
}
NetworkCredential credential = null;
if (!string.IsNullOrWhiteSpace(userName))
{
credential = new NetworkCredential(userName, password);
}
Log.Information("Setting proxy to: {ProxyHttps}", proxyHttpsUriBuilder.Uri.ToString());
factory.SetProxy(new WebProxy(proxyHttpsUriBuilder.Uri, true, _settings.ProxyNoProxy, credential), credential);
}
return(factory);
}
