无法从 google 日历同步到我的 .Net Mvc Web App

Question

我正在尝试从 google 日历同步到我的 .NET MVC Web 应用程序。

我创建了一个回调方法，Googles Calendar API 会将日历中的新事件发送到该回调方法。但是我没有得到新的 google 日历事件，而是得到了这个 error:

2021-07-09 12:52:26,982 [ 37] DEBUG DotNetOpenAuth.Messaging - The following required parameters were missing from the DotNetOpenAuth.OAuth2.Messages.AccessTokenFailedResponse message: {error, }

2021-07-09 12:52:26,997 [ 37] WARN DotNetOpenAuth.Messaging
Multiple message types seemed to fit the incoming data: {AccessTokenSuccessResponse (2.0), UnauthorizedResponse (2.0), }

2021-07-09 12:52:27,013 [ 37] DEBUG DotNetOpenAuth.Messaging.Channel
Received AccessTokenSuccessResponse response.

2021-07-09 12:52:27,013 [ 37] INFO DotNetOpenAuth.Messaging.Channel
Processing incoming AccessTokenSuccessResponse (2.0) message: access_token: <Access_Token_Number> token_type: Bearer expires_in: 3599 scope: https://www.googleapis.com/auth/calendar

2021-07-09 12:52:27,013 [ 37] DEBUG DotNetOpenAuth.Messaging.Channel
After binding element processing, the received AccessTokenSuccessResponse (2.0) message is: access_token: <Access_Token_Number> token_type: Bearer expires_in: 3599 scope: https://www.googleapis.com/auth/calendar

我该如何处理？

编辑（添加代码）

 public void PushNotificationCallback()
    {
        try
        {                
            var header = Request.Headers;
         
            NotificationResponse notification = new NotificationResponse(header["X-Goog-Channel-Expiration"], header["X-Goog-Channel-Id"], header["X-Goog-Message-Number"], header["X-Goog-Resource-Id"], header["X-Goog-Resource-State"], header["X-Goog-Channel-Token"], header["X-Goog-Resource-Uri"]);   
       
           therapistCalendarEntryController.PushNotificationCallback (notification);

        }
        catch (Exception e)
        {
          ...
        }            
    }

并在控制器动作中

public void PushNotificationCallback(NotificationResponse response)
    {                        
        if (!string.IsNullOrEmpty(response?.HTTP_X_GOOG_CHANNEL_TOKEN))  surrounded with if
        {
            var TherpistRepisitoryCallback = TherapistRepository ?? (Global.IoC.TryResolve<IRepository<Therapist>>());
            var therapistId = new Guid(response.HTTP_X_GOOG_CHANNEL_TOKEN);
            var therapistCall = TherpistRepisitoryCallback.Get(therapistId);                

            if (therapistCall != null)
            {
                SyncGoogleCalendarEvents(therapistCall, null, true);
            } 
        }         
    }


public void SyncGoogleCalendarEvents(Therapist therapist, string pagingToken, bool syncAllEvents)
    {            
        var TherpistRepisitoryCallback = TherapistRepository ?? (Global.IoC.TryResolve<IRepository<Therapist>>());
        var TherapistCalendarEntryRepositoryCallback = TherapistCalendarEntryRepository ?? (Global.IoC.TryResolve<IRepository<TherapistCalendarEntry>>());

        try
        {
            Encoding encoding = Encoding.UTF8;
            string SyncTokenStr = "";
            string PageTokenStr = "";

            if (pagingToken != null)
                PageTokenStr = "&pageToken=" + pagingToken;
            if (therapist.SyncTokenGoogleCalendar != null)
                SyncTokenStr = "&syncToken=" + therapist.SyncTokenGoogleCalendar;                

            var request = (HttpWebRequest)WebRequest.Create(new Uri(@"https://www.googleapis.com/calendar/v3/calendars/primary/events?showDeleted=true" + PageTokenStr + SyncTokenStr, UriKind.Absolute));
            if (therapist.RefreshTokenGoogle != null)
            {
                var authenticator = GetAuthenticator(therapist);
                GoogleAuthorizationHelper.apply((GoogleApiUtils.GoogleAuthenticator)authenticator, request);
            }
            request.Method = "GET";
            request.ContentType = "application/json";

            try
            {
                var response = (HttpWebResponse)request.GetResponse();
                string jsonString = GetResponseJson(response);
                PrintResponseJson(jsonString, "sync from google calendar");

                var data = (JObject)JsonConvert.DeserializeObject(jsonString);

                if (data["nextPageToken"] != null)
                {
                    if (syncAllEvents == true)
                    {
                        AddGoogleCalendarEventToTipulog(therapist, TherapistCalendarEntryRepositoryCallback, data);
                    }

                    SyncGoogleCalendarEvents(therapist, data["nextPageToken"].ToString(), syncAllEvents);
                }
                else
                {
                    saveTherapistNextToken(therapist, TherpistRepisitoryCallback, data);
                    if (syncAllEvents == true)
                    {
                        AddGoogleCalendarEventToTipulog(therapist, TherapistCalendarEntryRepositoryCallback, data);
                    }
                }             

            }
            catch (WebException e)
            {
                ...
            }

            catch (Exception e)
            {
                ...
            }
        }
        catch (Exception e)
        {
           ...
        }
    }

Answer 1

我有一个教程展示了如何设置 MVC 项目以供 Google 人 api Asp .net core 3 and Google login

授权

一旦你设置了 DI，你就可以调用你想要的 API。

 // This configures Google.Apis.Auth.AspNetCore3 for use in this app.
 services
     .AddAuthentication(o =>
     {
         // This forces challenge results to be handled by Google OpenID Handler, so there's no
         // need to add an AccountController that emits challenges for Login.
         o.DefaultChallengeScheme = GoogleOpenIdConnectDefaults.AuthenticationScheme;
         // This forces forbid results to be handled by Google OpenID Handler, which checks if
         // extra scopes are required and does automatic incremental auth.
         o.DefaultForbidScheme = GoogleOpenIdConnectDefaults.AuthenticationScheme;
         // Default scheme that will handle everything else.
         // Once a user is authenticated, the OAuth2 token info is stored in cookies.
         o.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
       })
       .AddCookie()
       .AddGoogleOpenIdConnect(options =>
       {
          options.ClientId = ClientId;
          options.ClientSecret = ClientSecret;
           });

博客有一个配套视频 post How to get a Google users profile information, with C#. 但它与 Google 人 api。

这里是一个如何针对 google 日历 api 调整它的示例。

    /// <summary>
    /// List all calendars in a users Calendar List.
    /// </summary>
    /// <param name="auth"></param>
    /// <returns></returns>
    [GoogleScopedAuthorize(CalendarService.ScopeConstants.Calendar)]
    public async Task<IActionResult> Index([FromServices] IGoogleAuthProvider auth)
    {
        var cred = await auth.GetCredentialAsync();
        var service = new CalendarService(new BaseClientService.Initializer
        {
            HttpClientInitializer = cred
        });

        var response = await service.CalendarList.List().ExecuteAsync();
        return View(response);
    }

我正在为 Google 日历编辑视频

无法从 google 日历同步到我的 .Net Mvc Web App

Cant sync from google calendar to my .Net Mvc Web App

c#

api

google-calendar-api

push-notification