IdentityServer3 从客户端请求上下文传递 Request.ClientCertificate

Question

我有以下配置：一些 Web 应用程序托管在 iis 上，设置了 "Require SSL" 参数。我还有基于 IdentityServer3 的身份验证服务。

我需要在身份验证流程中将 Request.ClientCertificate.SerialNumber 从我的 Web 应用程序传递到 IdentityServer。

这是我的客户端配置的一部分：

Notifications = new OpenIdConnectAuthenticationNotifications
            {
                RedirectToIdentityProvider = n =>
                {
                    // if signing in, send certificate parameters
                    if(n.ProtocolMessage.RequestType == OpenIdConnectRequestType.AuthenticationRequest)
                    {
                        // here i would like to get client certificate
                        var req = n.OwinContext.Request;

                        // and pass it's serial number to IdentityServer someway
                        n.ProtocolMessage.AcrValues = req.ClientCertificate.SerialNumber
                    }

                    return Task.FromResult(0);
                },
          }

可能吗？如何获取当前请求的 ClientCertificate？

Answer 1

终于，我成功了：

Notifications = new OpenIdConnectAuthenticationNotifications
{
    RedirectToIdentityProvider = n =>
    {
        // if signing in, send certificate parameters
        if(n.ProtocolMessage.RequestType == OpenIdConnectRequestType.AuthenticationRequest)
        {
            var RequestContext = n.OwinContext.Environment["System.Web.Routing.RequestContext"] as System.Web.Routing.RequestContext;
            if (RequestContext != null)
            {
                var clientCert = RequestContext.HttpContext.Request.ClientCertificate;

                // if client authenticated with certificate then extract certificate info and pass it to identity server
                if (!string.IsNullOrEmpty(clientCert.SerialNumber))
                {
                    var sn = clientCert.SerialNumber.Replace("-", "");

                    // Acr on IdentityServer side explodes by spaces. To prevent splitting values with spaces made some replaces
                    n.ProtocolMessage.AcrValues = "cert:" + sn + " " + clientCert.Subject.Replace(" ","_*_").Replace(",_*_"," ");
                }
            }
        }

        return Task.FromResult(0);
    },
}

IdentityServer3 从客户端请求上下文传递 Request.ClientCertificate

IdentityServer3 pass Request.ClientCertificate from client request context

c#

ssl

client-certificates

owin

identityserver3