public static (Stream, string) GetLoginQrCode() { var uri = new Uri(QrCodeUrl); var request = new HttpRequestMessage(HttpMethod.Get, uri); var cookieContainer = new CookieContainer(); var handler = new HttpClientHandler { CookieContainer = cookieContainer, AllowAutoRedirect = true, UseCookies = true }; using var client = new HttpClient(handler); var response = client.Send(request); var stream = response.Content.ReadAsStreamAsync().Result; var cookies = cookieContainer.GetCookies(uri).ToList(); var qrsig = cookies.FirstOrDefault(x => x.Name == "qrsig")?.Value; return (stream, qrsig); }

public static (bool, string, ScanResult) GetQqScanResult(string qrsig) { var timeStamp = GetTimeStamp(); var ptqrToken = ParsePtqrToken(qrsig); var uri = new Uri(string.Format(ScanResultUrl, ptqrToken, timeStamp)); var request = new HttpRequestMessage(HttpMethod.Get, uri); var cookieContainer = new CookieContainer(); cookieContainer.Add(new Cookie("qrsig", qrsig) { Domain = uri.Host }); var handler = new HttpClientHandler { CookieContainer = cookieContainer, AllowAutoRedirect = true, UseCookies = true }; using var client = new HttpClient(handler); var response = client.Send(request); var content = response.Content.ReadAsStringAsync().Result; var result = ParsePtuiCbResult(content); return result[0] == "0" ? (true, result[4], new ScanResult(ParseQqNumber(result[2]), result[5])) : (false, result[4], null); }

QQ Scan Login
QQ Scan Result

services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme) .AddCookie(options => { // options.Cookie.HttpOnly = true; // options.ExpireTimeSpan = TimeSpan.FromHours(2); // options.SlidingExpiration = true; options.LoginPath = "/Account/Login"; options.AccessDeniedPath = "/Account/Login"; });

if (ModelState.IsValid) { // 创建用户登录标识，Cookie名称与IServiceCollection中配置的一样即可 var identity = new ClaimsIdentity(CookieAuthenticationDefaults.AuthenticationScheme); // 添加之后，可使用User.Identity.Name获取该值 identity.AddClaim(new Claim(ClaimTypes.Name, model.Nick)); // identity中还可以添加自定义数据 identity.AddClaim(new Claim("qq", model.Number)); // var customValue = User.Claims.SingleOrDefault(s => s.Type == "qq").Value; await HttpContext.SignInAsync(new ClaimsPrincipal(identity)); return Redirect("~/"); }

await HttpContext.SignOutAsync();