使用“itfoxtec-identity-saml2‘2”的SAML2.0访问令牌

Question

我正在尝试将您的Nuget包用于dotnet核心，并且我获得了一点点成功，我也可以登录到SAML身份提供者，如Onelogin、Okta和我也获得了日志用户信息，但我在生成访问令牌时感到困惑(Bearer令牌调用SAML身份提供者的API)。我怎么才能得到那个记号？

我可以在saml2AuthnResponse中看到securitytoken对象，但不知道如何实现该令牌，在该对象中，安全键和singin键为空。

我对此完全陌生，所以我可能误解了一些东西。

请帮帮我。

[Route("AssertionConsumerService")]
    public async Task<IActionResult> AssertionConsumerService()
    {       
        var binding = new Saml2PostBinding();
        var saml2AuthnResponse = new Saml2AuthnResponse(config); 

        binding.ReadSamlResponse(Request.ToGenericHttpRequest(), saml2AuthnResponse);
        if (saml2AuthnResponse.Status != Saml2StatusCodes.Success)
        {
            throw new AuthenticationException($"SAML Response status: {saml2AuthnResponse.Status}");
        }
        binding.Unbind(Request.ToGenericHttpRequest(), saml2AuthnResponse);
        await saml2AuthnResponse.CreateSession(HttpContext, claimsTransform: (claimsPrincipal) => ClaimsTransform.Transform(claimsPrincipal)); 
        var relayStateQuery = binding.GetRelayStateQuery();
        var returnUrl = relayStateQuery.ContainsKey(relayStateReturnUrl) ? relayStateQuery[relayStateReturnUrl] : Url.Content("~/");
        return Redirect(returnUrl);
    }

Answer 1

通过在Saml2Configuration.SaveBootstrapContext = true中设置appsettings.json，您可以以XML字符串的形式访问SAML2.0令牌：

...
"Saml2": {
  "SaveBootstrapContext": true,
  "IdPMetadata": "https://localhost:44305/metadata",
  "Issuer": "itfoxtec-testwebappcore",
  ...
}

或者，您可以在代码中设置配置：

config.SaveBootstrapContext = true;

然后，您可以将SAML2.0令牌读入saml2AuthnResponse.ClaimsIdentity.BootstrapContext中的XML

public async Task<IActionResult> AssertionConsumerService()
{       
    var binding = new Saml2PostBinding();
    var saml2AuthnResponse = new Saml2AuthnResponse(config);

    binding.ReadSamlResponse(Request.ToGenericHttpRequest(), saml2AuthnResponse);
    if (saml2AuthnResponse.Status != Saml2StatusCodes.Success)
    {
        throw new AuthenticationException($"SAML Response status: {saml2AuthnResponse.Status}");
    }
    binding.Unbind(Request.ToGenericHttpRequest(), saml2AuthnResponse);
    await saml2AuthnResponse.CreateSession(HttpContext, claimsTransform: (claimsPrincipal) => ClaimsTransform.Transform(claimsPrincipal));

    var samlTokenXml = saml2AuthnResponse.ClaimsIdentity.BootstrapContext as string;

    var relayStateQuery = binding.GetRelayStateQuery();
    var returnUrl = relayStateQuery.ContainsKey(relayStateReturnUrl) ? relayStateQuery[relayStateReturnUrl] : Url.Content("~/");
    return Redirect(returnUrl);
}