PROSAGA码农传奇-区块链扩展技术-将自定义标头值传递给IdentityServer4登录

<div class =“post-text”itemprop =“text”>
  <P>
    您可以将自定义参数传递给授权端点。如果您使用的是OpenID Connect Middleware，则可以将该值添加到授权请求的查询字符串中
     <code>
      OnRedirectToIdentityProvider
    </code>
     功能：
  </p>
   <pre>
    <code>
       services.AddAuthentication(options =>
        {
            options.DefaultScheme = "Cookies";
            options.DefaultChallengeScheme = "oidc";
        })
            .AddCookie("Cookies")

//hybrid flow
            .AddOpenIdConnect("oidc", options =>
            {
                options.SignInScheme = "Cookies";

options.Authority = "http://localhost:62888/";
                options.RequireHttpsMetadata = false;

options.ClientId = "mvc2";
                options.ClientSecret = "secret";
                options.ResponseType = "code id_token";

options.SaveTokens = true;
                options.GetClaimsFromUserInfoEndpoint = true;

options.Scope.Add("api1");
                options.Scope.Add("offline_access");
                options.Events.OnRedirectToIdentityProvider = async n =>
                {
                    var headerValue = n.HttpContext.Request.Headers["X-CustomId"];

n.ProtocolMessage.SetParameter("X-CustomId", headerValue.ToString());

await Task.FromResult(0);
                };
            });

</code>
  </pre>
  <P>
    然后在登录页面中，您可以轻松获取querString：
  </p>
   <pre>
    <code>
          [HttpGet]
    [AllowAnonymous]
    public async Task<IActionResult> Login(string returnUrl = null)
    {

var queryString = HttpContext.Request.Query["returnUrl"].ToString();
        // Clear the existing external cookie to ensure a clean login process
        await HttpContext.SignOutAsync(IdentityConstants.ExternalScheme);

ViewData["ReturnUrl"] = returnUrl;
        return View();
    }

</code>
  </pre>
  <P>
    然后prase the
     <code>
      queryString
    </code>
     获得X-CustomId的价值：