FacebookUtils.ParseUrlQueryString breaks when session variable present

[jacobh0]

When parsing a URL containing a serialized session object (as defined by the request string variable "session") this exception is thrown:

[KeyNotFoundException: The given key was not present in the dictionary.] System.ThrowHelper.ThrowKeyNotFoundException() +28 System.Collections.Generic.Dictionary`2.get_Item(TKey key) +7454012 FacebookSharp.FacebookUtils.ParseUrlQueryString(String query) +337 FacebookSharp.FacebookAuthenticationResult.Parse(String url, FacebookSettings facebookSettings) +710 Main.HandShake() +99 Main.Page_Load(Object sender, EventArgs e) +14 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +50 System.Web.UI.Control.LoadRecursive() +141 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

This issue is fixed when disabling "Canvas Session Parameter" in the Migrations tab.

[prabirshrestha]

can u give me the full url you are tryin to parse.

[jacobh0]

http://apps.facebook.com/playerauctions/index.aspx?signed_request=TKHOVWCLf1kx-ml5Y1nMsjkJuFUbZE7V5IHc_k0RD1o.eyJhbGdvcml0aG0iOiJITUFDLVNIQTI1NiJ9&perms=publish_stream,email&selected_profiles=699769542&installed=1&session={%22session_key%22:%222.O3glbwKJXajUtswBzGFpOA__.3600.1281168000-699769542%22,%22uid%22:699769542,%22expires%22:1281168000,%22secret%22:%22fc5uQIzfAAmjZ2GSV18WXA__%22,%22sig%22:%225f057e24fba72a66c27ffe77c4052020%22}

Thats from the actual URL, the URL looking at the iframe source is:

http://lbetafacebook.playerauctions.com/index.aspx?signed_request=TKHOVWCLf1kx-ml5Y1nMsjkJuFUbZE7V5IHc_k0RD1o.eyJhbGdvcml0aG0iOiJITUFDLVNIQTI1NiJ9&perms=publish_stream%2Cemail&selected_profiles=699769542&installed=1&session=%7B%22session_key%22%3A%222.O3glbwKJXajUtswBzGFpOA__.3600.1281168000-699769542%22%2C%22uid%22%3A699769542%2C%22expires%22%3A1281168000%2C%22secret%22%3A%22fc5uQIzfAAmjZ2GSV18WXA__%22%2C%22sig%22%3A%225f057e24fba72a66c27ffe77c4052020%22%7D&signed_request=TKHOVWCLf1kx-ml5Y1nMsjkJuFUbZE7V5IHc_k0RD1o.eyJhbGdvcml0aG0iOiJITUFDLVNIQTI1NiJ9

Oddly enough it duplicated signed_request... nice one Facebook

[prabirshrestha]

is it fine now..

[jacobh0]

Is what fine?

[jacobh0]

http://apps.facebook.com/playerauctions/index.aspx?signed_request=TKHOVWCLf1kx-ml5Y1nMsjkJuFUbZE7V5IHc_k0RD1o.eyJhbGdvcml0aG0iOiJITUFDLVNIQTI1NiJ9&perms=publish_stream%2Cemail&selected_profiles=699769542&installed=1&session=%7B%22session_key%22%3A%222.KIFQ5hzMnOnIrYdqVluFEg__.3600.1281171600-699769542%22%2C%22uid%22%3A699769542%2C%22expires%22%3A1281171600%2C%22secret%22%3A%22W6U0muJN5EWINsgGRi2GGg__%22%2C%22sig%22%3A%22e9c175cb930855b5661b78eb857f29fc%22%7D

When I authorize it, it sends me there and I get the error.

Sorry, this was because I had "return_session=1" in my login url, not because of the Migration option. But as it stands it breaks when parsing because of that serialized session object (when it's present).

[prabirshrestha]

can u pull the latest and try FacebookSharp.Samples.CanvasIFrameApplication

in my the sample is workin fine. and i also changed the login to use the javascript version.

[jacobh0]

Seems to be working fine without return_session=1 in the login URL... I don't think the problem has actually been fixed though... Only when session parsing is implemented in the library will we know for sure. Just a note, it is not required to have "Canvas Session Parameter" enabled for the iframe canvas application, only OAuth 2.0 Beta is needed.

[prabirshrestha]

closed