[Web API]AspNet.Security.OAuth.BattleNet OAuth 2.0 问题

Question

基本上我的 Login with BattleNet Button 在这里发送请求：

     services.AddAuthentication(options =>
        {
            options.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
            options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
        })
            .AddCookie(options =>
            {
                options.LoginPath = "/login";
                options.LogoutPath = "/logout";
            })
            .AddJwtBearer(options =>
            {
                options.TokenValidationParameters = new TokenValidationParameters
                {
                    ValidateIssuer = true,
                    ValidateAudience = true,
                    ValidateLifetime = true,
                    ValidateIssuerSigningKey = true,
                    ValidIssuer = Configuration["Jwt:Issuer"],
                    ValidAudience = Configuration["Jwt:Audience"],
                    IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Jwt:Key"]))
                };
            })
            .AddBattleNet(options =>
            {
                options.ClientId = Configuration["BattleNet:ClientId"];
                options.ClientSecret = Configuration["BattleNet:ClientSecret"];
                options.Region = BattleNetAuthenticationRegion.Europe;

            })

---

     [AllowAnonymous]
    [HttpPost(nameof(ExternalLogin))]
    public IActionResult ExternalLogin(string provider, string returnUrl = null)
    {
        var properties = new AuthenticationProperties
        {
            RedirectUri = Url.Action("ExternalLoginCallback"),
            Items =
            {
                { "scheme", provider},
                { "returnUrl", returnUrl }
            }
        };
        return Challenge(properties, provider);
    }

然后我突然收到这个错误

CORS 错误:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://eu.battle.net/oauth/authorize?client_id=*&scope=d3.profile%20openid&response_type=code&redirect_uri=https%3A%2F%2Flocalhost%3A44333%2Fapi%2Fuser%2Fexternallogincallback&state=CfDJ8GNva7rF4-dPly4Z3xuUAIb6108sCNggQc6reYXjMJrGmdWZbri-N715ueCZ2Ksw9Q47k8SX1xG-c3zDck-mXT8h8mvEY5_41ox7C9OsU-PStXqUsD6npNcMBhCr16Qh1valIQ6REKTMjLiilO5wbnx1349I2SwQfJevGwKZqC4o4PElfF6kPaPmRa5Eslquh4Sfwbn3HTKeaArxx2v8jD4. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing).

HTTP 请求:

如果我在另一个选项卡中打开此请求，我将获得身份验证并重定向到 ExternalLoginCallback.

PS：我正在使用 AspNet.Security.OAuth.BattleNet 并且我没有使用 ASP.NET Core Identity 进行身份验证（使用自定义逻辑） .

Answer 1

您不应该使用 AJAX/XHR 启动授权代码流。相反，只需将您的用户重定向到您的 ExternalLogin 端点。