LoginController中：

第三方登陸

public ActionResult LogOn(){string liveUrl =string.Format("https://login.live.com/oauth20_authorize.srf?client_id={0}&scope=wl.Emails&response_type=code&redirect_uri={1}&locale={2}",this.ClientId,this.OAuthLogOnCallbackUrl,this.Locale);return this.Redirect(liveUrl);}

登陸成功，獲取授權　

public async Task<ActionResult> LogOnCallback(){string code = this.Request.QueryString["code"];if (string.IsNullOrEmpty(code))return RedirectToAction("Index", "Login");string tokenUrl =string.Format("https://login.live.com/oauth20_token.srf?client_id={0}&redirect_uri={1}&client_secret={2}&code={3}&grant_type=authorization_code&locale={4}",this.ClientId,this.OAuthLogOnCallbackUrl,this.ClientSecret,code,this.Locale);string liveId = string.Empty;try{liveId = await RequestLiveIdByToken(await RequestToken(tokenUrl));}catch (Exception e){_logger.Fatal("無法獲取LiveId Token", e);var result = new ViewModels.LoginResult{Success = false,ErrorMessage = "無法連接登錄服務，請稍后再試。"};return View("Index", result);}if (!string.IsNullOrEmpty(liveId)){var userSvc = _userSvc;if (userSvc.CurrentUser == null){UserInfo user = userSvc.GetUserByEmail(liveId);if (user != null && user.IsEnable){return this.DoLogin(user);}else{var result = new ViewModels.LoginResult{Success = false};if (user != null && !user.IsEnable){result.ErrorMessage = "用戶被禁止登錄！";}else{result.ErrorMessage = "用戶不存在！";}return View("Index", result);}}return this.DoLogin(userSvc.CurrentUser);}return this.RedirectToAction("Index", "Login");}

?

[NonAction]private async Task<string> RequestToken(string url){var request = WebRequest.Create(url);using (var response = await request.GetResponseAsync()){using (var sr = new StreamReader(response.GetResponseStream())){var json = sr.ReadToEnd();return JsonConvert.DeserializeAnonymousType(json, new { access_token = "" }).access_token;}}}[NonAction]private async Task<string> RequestLiveIdByToken(string token){if (string.IsNullOrEmpty(token))return string.Empty;var request = WebRequest.Create(string.Format("https://apis.live.net/v5.0/me?access_token={0}", token));using (var response = await request.GetResponseAsync()){using (var sr = new StreamReader(response.GetResponseStream())){string json = sr.ReadToEnd();var userJson = JsonConvert.DeserializeAnonymousType(json, new { emails = new { account = "" } });return userJson.emails.account;}}}

注銷登陸　

public ActionResult LogOff(){this.PreLogout();string liveUrl =string.Format("https://login.live.com/oauth20_logout.srf?client_id={0}&scope=wl.Emails&response_type=code&redirect_uri={1}&locale={2}",this.ClientId,this.OAuthLogOnCallbackUrl,this.Locale);return this.Redirect(liveUrl);}

　　

轉載于:https://www.cnblogs.com/panpanwelcome/p/7682832.html

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