c# - 如何将 'state' 查询参数添加到 OAuth 请求(或忽略它)

Question

我使用 ASP.NET Core 2.1 创建了一个 API 服务器。其中一个步骤涉及使用 DocuSign API 的 OAuth 代码授权。

当我转到登录路由时，服务器对用户进行了完美的身份验证，响应中存在 Auth token ，用户可以做他们需要做的一切。 但是，在用户首次“登录”(或者如果他们已清除缓存)时，当 DocuSign 已登录用户并将其返回到回调 URL 时，将抛出 500 错误。

启动.cs

.AddOAuth("DocuSign", options =>
    {
        options.ClientId = Configuration["ApplicationSettings:ConnectionSettings:DocuSign:ClientID"];
        options.ClientSecret = Configuration["ApplicationSettings:ConnectionSettings:DocuSign:SecretKey"];

        options.CallbackPath = new PathString("/ds/callback");

        options.AuthorizationEndpoint = Configuration["ApplicationSettings:ConnectionSettings:DocuSign:AuthorizationEndpoint"];
        options.TokenEndpoint = Configuration["ApplicationSettings:ConnectionSettings:DocuSign:TokenEndpoint"];
        options.UserInformationEndpoint = Configuration["ApplicationSettings:ConnectionSettings:DocuSign:UserInformationEndpoint"];
        options.Scope.Add("signature");

        options.SaveTokens = true;
        options.ClaimActions.Clear();
        options.ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "sub");
        options.ClaimActions.MapJsonKey(ClaimTypes.Name, "name");
        options.ClaimActions.MapJsonKey("accounts", "accounts");

        options.ClaimActions.MapCustomJson("account_id", obj => ExtractDefaultAccountValue(obj, "account_id"));
        options.ClaimActions.MapCustomJson("account_name", obj => ExtractDefaultAccountValue(obj, "account_name"));
        options.ClaimActions.MapCustomJson("base_uri", obj => ExtractDefaultAccountValue(obj, "base_uri"));
        options.ClaimActions.MapJsonKey("access_token", "access_token");
        options.ClaimActions.MapJsonKey("refresh_token", "refresh_token");
        options.ClaimActions.MapJsonKey("expires_in", "expires_in");
        options.Events = new OAuthEvents
        {
            OnCreatingTicket = async context =>
            {


                var request = new HttpRequestMessage(HttpMethod.Get, context.Options.UserInformationEndpoint);
                request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
                request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", context.AccessToken);

                var response = await context.Backchannel.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, context.HttpContext.RequestAborted);
                response.EnsureSuccessStatusCode();
                var user = JObject.Parse(await response.Content.ReadAsStringAsync());

                user.Add("access_token", context.AccessToken);
                user.Add("refresh_token", context.RefreshToken);
                user.Add("expires_in", DateTime.Now.Add(context.ExpiresIn.Value).ToString());

                context.RunClaimActions(user);
                context.Response.Redirect("/api/values");
            },
            OnRemoteFailure = context =>
            {
                context.HandleResponse();
                context.Response.StatusCode = 500;
                Console.WriteLine(context.Failure.ToString());
                return Task.FromResult(0);
            },
        };
    });

OAuth抛出的错误是:

RemoteAuthentication 错误:oauth 状态丢失或无效..

我使用 Fiddler 检查了请求参数，OAuth 似乎没有拼接“state”参数。

有没有办法添加这个参数？或者甚至是完全忽略它的方法？

Answer 1

state 是一个可选参数，用于传递任何类型的附加数据，这些数据稍后将在重定向 uri 中传回您的应用。您能否尝试在您的请求中添加 &state= 并查看是否可以解决问题？