Facebook OAth login issue

Eric Garrison asked on October 18, 2016 04:26

Kentico V9.0.44 seems to be giving errors using the Facebook Login feature.

Message: Exception of type 'System.Web.HttpUnhandledException' was thrown.

Exception type: System.Web.HttpUnhandledException Stack Trace: at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Message: (OAuthException - #12) (#12) bio field is deprecated for versions v2.8 and higher

Exception type: Facebook.FacebookOAuthException Stack Trace: at Facebook.FacebookClient.ProcessResponse(HttpHelper httpHelper, String responseString, Type resultType, Boolean containsEtag, IList`1 batchEtags) at Facebook.FacebookClient.Api(HttpMethod httpMethod, String path, Object parameters, Type resultType) at Facebook.FacebookClient.Get(String path, Object parameters, Type resultType) at CMS.MembershipProvider.Facebook.FacebookUserProvider.GetFacebookUser(String facebookUserId, String accessToken) at CMSWebParts_Membership_FacebookConnect_FacebookConnectLogon.MapFacebookUserProfile(FacebookUserProfileMappingTriggerEnum mappingTrigger, UserInfo user, String userProfileId, String facebookAccessToken) at CMSWebParts_Membership_FacebookConnect_FacebookConnectLogon.SignInUser(UserInfo ui, String facebookUserId, String facebookAccessToken, Boolean mapFacebookProfile) at CMSWebParts_Membership_FacebookConnect_FacebookConnectLogon.SetupControlForPublicUser() at CMS.PortalControls.CMSWebPartZone.OnContentLoaded() at CMS.PortalControls.CMSAbstractLayout.OnContentLoaded() at CMS.PortalControls.CMSAbstractLayout.LoadWebPartsContent(Boolean reloadData) at CMS.PortalControls.CMSAbstractLayout.LoadContent(PageInfo pageInfo, Boolean reloadData, Boolean allowOrphanedZones) at CMS.PortalControls.CMSPagePlaceholder.LoadContent(PageInfo pageInfo, Boolean reloadData) at CMS.PortalControls.CMSPagePlaceholder.LoadContent(PageInfo pageInfo, Boolean reloadData) at CMS.PortalControls.CMSPortalManager.LoadPage(Boolean reloadData) at CMS.PortalControls.CMSPortalManager.PageHelper_InitComplete(Object sender, EventArgs e) at CMS.Helpers.PageContext.CurrentPage_InitComplete(Object sender, EventArgs e) at System.EventHandler.Invoke(Object sender, EventArgs e) at System.Web.UI.Page.OnInitComplete(EventArgs e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

facebook login with facebook

Correct Answer

Filip Tesar answered on October 25, 2016 17:34

Hello Eric, this issue is caused by the Facebook API change as mentioned above. It will be fixed in 9.0.46 hotfix.

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Recent Answers

Joshua Adams answered on October 21, 2016 02:51

Just had the same exact error occur in that latest hotfix even after changing the field mapping in settings not to pull in the bio.

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Laura Frese answered on October 21, 2016 07:07

Facebook likes to change their API quite a bit. You will have to modify the web part. This post on stackoverflow has a solution that worked for them.

Connection<Facebook> connection = facebookConnectionFactory.createConnection(accessGrant);
Facebook facebook = connection.getApi();
String [] fields = { "id", "email",  "first_name", "last_name" };
User userProfile = facebook.fetchObject("me", User.class, fields);

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Eric Garrison answered on October 25, 2016 02:03

What file do I change. The mapping looks to be controlled by settins>Global>Security & Membership>Authenticatin>Facebook>User Profile Mapping

I removed the Biography mapping, but it seems to still be trying to pull it.

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Eric Garrison answered on October 25, 2016 20:04

Ok. I will wait for that to come out.

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Eric Garrison answered on October 31, 2016 01:05

The newest Hotfix did correct the issue. Thank you.

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