[Facebooker-talk] fb_sig_in_iframe=1

Fri Sep 5 17:58:02 EDT 2008

Regarding the iframe, here is the fbml in my source:

<!--Rendering the page using the following FBML retrieved from
http://myserver.com:3001/offers
You are seeing this because you are a developer of the application and
this information may be useful to you in debugging.  The FBML will not
be shown to other users visiting this page.:

<fb:fbml>
  <a href="http://apps.facebook.com/myserver/offers">Offers</a> <br />
  &lt;fb:iframe
src=&quot;http://apps.kitnmedia.com/superrewards/offers.php?uid=153457602&amp;h=mqhjh&quot;
width=&quot;640&quot; height=&quot;2400&quot;
frameborder=&quot;0&quot; scrolling=&quot;no&quot; /&gt;
</fb:fbml>
-->

When looking at the actual canvas page that my app is located at, this is
displayed in plain text, but it should actually be the iframe of the offers
displayed:

<fb:iframe src="http://apps.kitnmedia.com/superrewards/offers.php?uid=
153457602&h=mqhjh" width="640" height="2400" frameborder="0" scrolling="no"
/>

I am using shanev's super rewards gem.  Here is my controller code:

app/controllers/offerscontroller.rb
  def index
    @offer_code = SuperRewards::Client.offers_display(:fbml,
current_user.facebook_id)
  end

Here is my view code

app/views/offers/index.fbml.erb

<%= @offer_code %>

For some reason it looks as if the link that should be created from the
offers_display method is being sanitized.  Not sure if there is a problem
with the way I set up the gem or if there is a problem with parsing the
actual link.  It seems the parse.rb file for the gem by shanev has many of
the same methods as the parse.rb file included in facebooker, although they
have been extracted to their own Reward module, along with a few other
unique methods for the gem.  The instructions on how to get the gem
installed and working are very minimal, as running sudo gem install did not
work.  I had to download the files and place them in my app.  I am not sure
if I am supposed to include the files, or require the files, or use some
other method of getting it working.  So what I did, was placed the files in
railsapp/lib folder, and I did an "include {ModulesName}" in the
offerscontroller.  Please let me know if there is a better way of doing
this.  I did not see a setup.rb file of install.rb file, and I am not sure
where I would include/require the gem if I were to place it in my gems
directory.

Here is the development.log data:

Processing OffersController#index (for 127.0.0.1 at 2008-09-05 14:23:42)
[GET]
  Session ID: 07c11f9c0erdf193245ff23b-153457602
  Parameters: {"fb_sig_time"=>"1220649821.887",
"fb_sig"=>"65d5372a2a37583617db71e93164321b", "fb_sig_in_new_facebook"=>"1",
"_method"=>"GET", "fb_sig_locale"=>"en_US", "action"=>"index",
"fb_sig_session_key"=>"07c11f9c0erdf193245ff23b-153457602",
"fb_sig_position_fix"=>"1", "fb_sig_in_canvas"=>"1",
"fb_sig_request_method"=>"GET", "controller"=>"offers",
"fb_sig_expires"=>"0", "fb_sig_added"=>"1", "fb_sig_friends"=>"2134137106",
"fb_sig_api_key"=>"d34d0eb94f008ba670f8317e0vf3486a", "fb_sig_user"=>"
153457602", "fb_sig_profile_update_time"=>"1217562451"}
  [4;35;1mUser Load (0.000470)[0m   [0mSELECT * FROM users WHERE
(users."facebook_id" = 153457602) LIMIT 1[0m
Rendering template within layouts/application
Rendering offers/index
Completed in 0.24300 (4 reqs/sec) | Rendering: 0.00405 (1%) | DB: 0.00047
(0%) | 200 OK [http://myserver.com/offers]

Looking at the log data, there is no mention of fb_sig_in_iframe = 1.  There
are also no errors shown, just a sanitized iframe link.  If you have any
ideas of what is going wrong here, I would greatly appreciate any feedback.

Best

On Fri, Sep 5, 2008 at 5:27 AM, Mike Mangino <mmangino at elevatedrails.com>wrote:

> I don't think you send fb_sig_in_iframe to Facebook, I think they send it
> to you, don't they?
>
> When you include fb:iframe inside an FBML tag, Facebook adds an iframe with
> a URL that points to the source. On the first request, they include all of
> the normal Facebook parameters. The browser displays the result as HTML.
>
> Can you give us an example of what you are seeing and some of the code?
>
>
> On Sep 5, 2008, at 3:35 AM, Marco Durden wrote:
>
>  I am using fbml, and need to use <fb:iframe> inside an <fb:fbml> tag.
>>  This would mean I would need an fb_sig_in_iframe=1 in the signatures sent
>> to facebook.   When I try to display the <fb:iframe> link on a page, it
>> displays what should be an iframe inserted into my page as plain text.  When
>> I view the source of the page, I check the fbml code, and it seems as if the
>> entire link is sanitized.  I know facebook sanitizes there links, but
>> displaying an iframe inside fbml seems to be a problem that I can't seem to
>> figure out.  Has anyone else seen this problem?  I didn't find anywhere in
>> the facebooker code that uses the fb_sig_in_iframe.  Any ideas are greatly
>> appreciated.
>>
>> Best
>> _______________________________________________
>> 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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