IdentityServer3：OWIN Katana 中间件抛出 "invalid_client" 错误，因为它无法获取令牌

Question

我们使用 IdentityServer3 作为身份提供者和 OWIN Katana 中间件来进行基于 OpenId Connect 的握手。当我们被重定向到身份服务器并返回到原始网站时，身份验证工作正常。但是当我尝试检索令牌并在 "OpenIdConnectAuthenticationNotifications" 中获取声明时，出现了 invalid_client 的问题。

请检查下面的代码（启动 class）和随附的屏幕截图。

public sealed class Startup
{   
    public void Configuration(IAppBuilder app)
    {
        string ClientUri = @"https://client.local";
        string IdServBaseUri = @"https://idm.website.com/core";l
        string TokenEndpoint = @"https://idm.website.com/core/connect/token";
        string UserInfoEndpoint = @"https://idm.website.com/core/connect/userinfo";
        string ClientId = @"WebPortalDemo";
        string ClientSecret = @"aG90apW2+DbX1wVnwwLD+eu17g3vPRIg7p1OnzT14TE=";

        //AntiForgeryConfig.UniqueClaimTypeIdentifier = "sub";
        JwtSecurityTokenHandler.InboundClaimTypeMap = new Dictionary<string, string>();

        app.UseCookieAuthentication(new CookieAuthenticationOptions
        {
            AuthenticationType = "Cookies"
        });

        app.UseOpenIdConnectAuthentication(new OpenIdConnectAuthenticationOptions
        {
            ClientId = ClientId,
            Authority = IdServBaseUri,
            RedirectUri = ClientUri,
            PostLogoutRedirectUri = ClientUri,
            ResponseType = "code id_token token",
            Scope = "openid profile roles",
            TokenValidationParameters = new TokenValidationParameters
            {
                NameClaimType = "name",
                RoleClaimType = "role"
            },
            SignInAsAuthenticationType = "Cookies",

            Notifications = new OpenIdConnectAuthenticationNotifications
            {
                AuthorizationCodeReceived = async n =>
                {
                    // use the code to get the access and refresh token
                    var tokenClient = new TokenClient(
                        TokenEndpoint,
                        ClientId,
                        ClientSecret);

                    var tokenResponse = await tokenClient.RequestAuthorizationCodeAsync(n.Code, n.RedirectUri);

                    if (tokenResponse.IsError)
                    {
                        throw new Exception(tokenResponse.Error);
                    }

                    // use the access token to retrieve claims from userinfo
                    var userInfoClient = new UserInfoClient(UserInfoEndpoint);

                    var userInfoResponse = await userInfoClient.GetAsync(tokenResponse.AccessToken);

                    // create new identity
                    var id = new ClaimsIdentity(n.AuthenticationTicket.Identity.AuthenticationType);
                    //id.AddClaims(userInfoResponse.GetClaimsIdentity().Claims);
                    id.AddClaims(userInfoResponse.Claims);

                    id.AddClaim(new Claim("access_token", tokenResponse.AccessToken));
                    id.AddClaim(new Claim("expires_at", DateTime.Now.AddSeconds(tokenResponse.ExpiresIn).ToLocalTime().ToString()));
                    id.AddClaim(new Claim("refresh_token", tokenResponse.RefreshToken));
                    id.AddClaim(new Claim("id_token", n.ProtocolMessage.IdToken));
                    id.AddClaim(new Claim("sid", n.AuthenticationTicket.Identity.FindFirst("sid").Value));

                    n.AuthenticationTicket = new AuthenticationTicket(
                        new ClaimsIdentity(id.Claims, n.AuthenticationTicket.Identity.AuthenticationType, "name", "role"),
                        n.AuthenticationTicket.Properties);
                },

                RedirectToIdentityProvider = n =>
                {
                    // if signing out, add the id_token_hint
                    if (n.ProtocolMessage.RequestType == OpenIdConnectRequestType.LogoutRequest)
                    {
                        var idTokenHint = n.OwinContext.Authentication.User.FindFirst("id_token");

                        if (idTokenHint != null)
                        {
                            n.ProtocolMessage.IdTokenHint = idTokenHint.Value;
                        }

                    }

                    return Task.FromResult(0);
                }
            }

        });
    }
}

IdSvr3 的客户端配置已指定使用混合流，我已多次检查客户端 ID 和客户端密码以验证它们是否正确。

这是服务器端的客户端配置：

Answer 1

我可以通过查看身份服务器生成的日志来解决问题。日志说客户端密码不正确，当我多次检查该密码与身份服务器上显示的内容完全一致时。但后来我意识到秘密应该是实际的文本而不是散列的文本。修改后的有效代码如下：

string ClientId = @"WebPortalDemo";
//string ClientSecret = @"aG90apW2+DbX1wVnwwLD+eu17g3vPRIg7p1OnzT14TE="; // Incorrect secret, didn't work
string ClientSecret = @"love"; // Actual text entered as secret, worked

来源：@rawel

IdentityServer3：OWIN Katana 中间件抛出 "invalid_client" 错误，因为它无法获取令牌

IdentityServer3: OWIN Katana middleware is throwing "invalid_client" error as it cannot get a token

asp.net-mvc

identityserver3

openid-connect

katana

owin-middleware