[Facebooker-talk] Facebooker::Session::IncorrectSignature exception when adding application

[Mike Mangino]

What kind of application is this? Facebook should always send the  
fb_sig parameters, right? Is this an iframe application?

Mike

On Aug 1, 2008, at 12:15 PM, William Thomas wrote:

> I have been digging a bit more and I think that I know why this is  
> happening. Since I am only asking Facebooker to authenticate my  
> current session with Facebook, I am not getting the expected  
> fb_sig_* parameters from my callback URL. Instead I only get  
> auth_token and therefore the verify_signature method fails.
>
> Apparently Facebooker expects  
> ensure_application_is_installed_by_facebook_user before anything  
> happens, and the callback from that provides fb_sig_* stuff.
>
> I believe I have 3 options:
> 1) Continue without the signature verification
> 2) Create a canvas page in my rails app to handle this and leave it  
> blank or make it link back to my site.
> 3) Use fb connect - where is this code available?
>
> Thoughts?
>
>
> ----- Original Message ----
> From: Mike Mangino <mmangino at elevatedrails.com>
> To: William Thomas <wthomas989 at yahoo.com>
> Cc: facebooker-talk at rubyforge.org
> Sent: Friday, August 1, 2008 8:56:46 AM
> Subject: Re: [Facebooker-talk]  
> Facebooker::Session::IncorrectSignature exception when adding  
> application
>
> This method makes sure requests are actually coming from Facebook.
>
> Without it, anybody could send requests to your application pretending
> to be from any user.
>
> Mike
>
> On Jul 31, 2008, at 11:27 PM, William Thomas wrote:
>
> > I am still having troubles with this exception. I ended up
> > commenting out the piece of code that throws the exception and
> > things work just fine after that...
> >
> > I have
> > before_filter :ensure_authenticated_to_facebook, :only =>
> > [ :edit_facebook, :sync_facebook_friends]
> >
> > ...before rails even gets to my edit_facebook action the exception
> > is thrown.
> >
> > What is the intention of the verify_signature method? It does not
> > make sense to me outright
> >
> > ----- Original Message ----
> > From: Xue Wei li <xu3w31l1 at gmail.com>
> > To: facebooker-talk at rubyforge.org
> > Sent: Thursday, July 24, 2008 1:11:16 PM
> > Subject: Re: [Facebooker-talk]
> > Facebooker::Session::IncorrectSignature exception when adding
> > application
> >
> > Thanks Richard - this is a great help =)
> >
> > On Wed, Jul 23, 2008 at 9:10 AM, Richard Jordan <jordanr at cs.washington.edu
> > > wrote:
> > it was the 1st thing I read... but in my case I need to see the  
> whole
> > picture (a zipped sample app that would help) - snippets only go so
> > far
> >
> > I put my first app on RubyForge.  It's pretty bloated, a stupid
> > idea, and very poorly done, but it works (or at least did at one
> > point).  If you're desperate do a,
> >        svn checkout svn://rubyforge.org/var/svn/couple-rater
> > Look at trunk/app/controller/application.rb.  I put all the install/
> > uninstall code in my base controller.
> >
> >
> >
> >
> >
> > On Tue, 22 Jul 2008, William Thomas wrote:
> >
> >  I'm using :ensure_authenticated_to_facebook since I don't have an
> > application but only want access to the data.
> >
> >
> >
> > ----- Original Message ----
> > From: Xue Wei li <xu3w31l1 at gmail.com>
> > To: facebooker-talk at rubyforge.org
> > Sent: Monday, July 21, 2008 10:05:17 PM
> > Subject: Re: [Facebooker-talk]  
> Facebooker::Session::IncorrectSignature
> > exception when adding application
> >
> >
> > I was thinking that and I could be wrong but you know I looked at
> > example
> > after example and I haven't seen anyone do an :exclude for the
> > ensure_facebook_application_is_installed with exception for a
> > 'remove_app'
> > method. Am I wrong? What if I wanted to access show facebook data on
> > the
> > first page?
> >
> > from    Dav Yaginuma <dav.yaginuma at gmail.com>
> > to      Xue Wei li <xu3w31l1 at gmail.com>
> > date    Mon, Jul 21, 2008 at 11:21 AM
> > subject Re: [Facebooker-talk]  
> Facebooker::Session::IncorrectSignature
> > exception when adding application
> > mailed-by gmail.com
> >
> > hide details 11:21 AM (8 hours ago)                    Reply
> >
> >
> >
> > I think I saw this, and the problem was the post-add URL defined in
> > the FB
> > app page needs to go to a controller action that skips the
> > ensure_facebook_application_is_installed filter.
> >
> >
> >
> >  _______________________________________________
> > Facebooker-talk mailing list
> > Facebooker-talk at rubyforge.org
> > http://rubyforge.org/mailman/listinfo/facebooker-talk
> >
> >
> >
> >
> > _______________________________________________
> > Facebooker-talk mailing list
> > Facebooker-talk at rubyforge.org
> > http://rubyforge.org/mailman/listinfo/facebooker-talk
>
> --
> Mike Mangino
> http://www.elevatedrails.com
>
>
>
>
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--
Mike Mangino
http://www.elevatedrails.com