C# 具有用于记录请求/响应的相互TLS和DelegatingHandler的HttpClient引发异常
我想用C# 具有用于记录请求/响应的相互TLS和DelegatingHandler的HttpClient引发异常,c#,dotnet-httpclient,C#,Dotnet Httpclient,我想用LoggingHandler:DelegatingHandler记录HttpClient的请求和响应,但我得到错误任务被取消了。HttpClient通过TLS进行连接 var httpClient = new HttpClient(MutualTlsHandler()); private WebRequestHandler MutualTlsHandler() { var certificateCollection = new X509Certificate2Collection
LoggingHandler:DelegatingHandler
记录HttpClient
的请求和响应,但我得到错误任务被取消了。HttpClient
通过TLS进行连接
var httpClient = new HttpClient(MutualTlsHandler());
private WebRequestHandler MutualTlsHandler()
{
var certificateCollection = new X509Certificate2Collection { ClientConfiguration.Certificate };
var mutualTlsHandler = new WebRequestHandler();
mutualTlsHandler.ClientCertificates.AddRange(certificateCollection);
mutualTlsHandler.ServerCertificateValidationCallback = IsValidServerCertificate;
return mutualTlsHandler;
}
这就像一个符咒,但我想记录发送的请求。试图创建一个LoggingHandler
并将其添加到链中会导致错误任务被取消
var httpClient = new HttpClient(new LoggingHandler(MutualTlsHandler())
internal class LoggingHandler : DelegatingHandler
{
public LoggingHandler(HttpMessageHandler innerHandler)
: base(innerHandler)
{
}
protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request,
CancellationToken cancellationToken)
{
var content = request.Content.ReadAsStringAsync();
return await base.SendAsync(request, cancellationToken);
}
}
var-httpClient=new-httpClient(new-LoggingHandler(mutualtlschandler())
内部类LoggingHandler:DelegatingHandler
{
公共日志处理程序(HttpMessageHandler innerHandler)
:base(innerHandler)
{
}
受保护的覆盖异步任务SendAsync(HttpRequestMessage请求,
取消令牌(取消令牌)
{
var content=request.content.ReadAsStringAsync();
返回wait base.sendaync(请求、取消令牌);
}
}
我假设使用request.Content.ReadAsStringAsync()
读取会导致需要倒带的流,但如何实现这一点?使用Content.CopyToAsync
复制会导致相同的错误
感谢所有帮助。您是否尝试在此nuget软件包中使用HttpClientFactory
:
加上这一点,我认为你可以做到:
HttpClientFactory.Create(mutualTlsHandler, loggingHandler);
不幸的是,这会产生同样的结果。令人困惑的是,在读取内容的链中可能有多个DelegatingHandler
s,但一旦引入WebRequestHandler
,它就会失败。