OWIN ADFS没有返回SecurityToken

Question

我试图为另一个adfs生成一个ActAs令牌，但我登录的第一个ADFS并不会返回SecurityToken。 我在OWIN Startup上错过了一些配置吗？

Startup.cs

  public SecurityToken GetSecuritySAMLToken()
    {
        ClaimsPrincipal icp = Thread.CurrentPrincipal as ClaimsPrincipal;
        ClaimsIdentity claimsIdentity = (ClaimsIdentity)icp.Identity;
        BootstrapContext bootstrapContext = claimsIdentity.BootstrapContext as BootstrapContext;

        //bootstrapContext is not null and bootstrapContext.Token is not null, however bootstrapContext.SecurityToken is null
        return bootstrapContext.SecurityToken;
    }

我如何检索令牌：

  public SecurityToken GetSecuritySAMLToken()
    {
        ClaimsPrincipal icp = Thread.CurrentPrincipal as ClaimsPrincipal;
        ClaimsIdentity claimsIdentity = (ClaimsIdentity)icp.Identity;
        BootstrapContext bootstrapContext = claimsIdentity.BootstrapContext as BootstrapContext;

        return GetSecurityTokenFromStringToken(bootstrapContext);
    }

    private static SecurityToken GetSecurityTokenFromStringToken(BootstrapContext bootstrapContext)
    {
        var handler = SecurityTokenHandlerCollection.CreateDefaultSecurityTokenHandlerCollection();
        SecurityToken ST = handler.ReadToken(bootstrapContext.Token);
        return ST;
    }

更新1

尝试将字符串（SAMLToken）转换为SecurityToken，handler.ReadToken返回null。

pickle.dump(variable, gzip.open(file_name, 'wb'), -1)

Answer 1

不得不这样回复：

 private static SecurityToken GetSecurityTokenFromStringToken(BootstrapContext bootstrapContext)
    {
        Microsoft.IdentityModel.Tokens.Saml11.Saml11SecurityTokenHandler handler = new Microsoft.IdentityModel.Tokens.Saml11.Saml11SecurityTokenHandler();
        handler.Configuration = new Microsoft.IdentityModel.Tokens.SecurityTokenHandlerConfiguration();
        XmlReader reader = XmlReader.Create(new StringReader(bootstrapContext.Token));
        SecurityToken samlToken = handler.ReadToken(reader);

        return samlToken;
    }