I have an application running in an iFrame that is embedded in a SharePoint site. The problem with this is navigation within the application does not result in a change in the SharePoint site URL. Therefore, if you were to refresh the overall page, you would be sent back to the default page of the application, not stay on the same page of the application. The reason this is an issue is sharing for social media. I have added a Facebook Share button to the application, but when it pulls the URL of the application which does not match or reference the URL of the overall site, so it just shares the application (which is not visually appealing and does not allow you to access the rest of the site).
Any body have any suggestions or know a place I can go for help? Thanks!
If I understand properly, the Facebook stuff is INSIDE the iframe?
If so, you can:
* Remove the iframe and integrate the application better with SharePoint, or
* Change the application so that it detects that it's running "alone" (with javascript etc), and if so redirect to the "big" application.
IF the Facebook stuff is in SharePoint, OUTSIDE of the iframe, you can write some javascript to update the URL in some way that matches the URL of the application. This requires that the SharePoint parent application and the iframe application run in the same domain - if they are not, this is not an option.
Note that changing the "parent" URL with JS will reload the page, UNLESS you only change the URL after the "#" part (so you can do something like:
"http://sharepoint/iframe.aspx?aa=11&bb=22#iframeUrl=http://uglyapplication/"
You'll also probably want to write JS to update your iframe accordingly if the user press "back"/"forward" etc in the browser, because changing the URL like above will still add a "step" to the browser history.
Related
I need to create a custom Facebook Page Tab app which will show an external site in an iframe. This need to have adverts on it but I'm not sure if this is possible as the site is hosted externally.
I'm not sure if I need to sign up to the Facebook Audience Network to get approved etc. either?
Any help or advice would be great.
Many browsers have this limitation of not allowing external sites to be shown in an iframe. Imagine the case when you are working hard to create a site and others show all your content in iframes. That is, naturally frustrating.
However, there is a candidate-solution: Let's suppose you create a page which sends a request to the other site and appends all the content into the body and head of your page. This is very much possible, so the solution is to:
Create a page in your site, let's call it outsider
In the server-side code of your outsider page send a request to the desired page to be shown
You will get the html of the page. Process it and include its content into the head and body of outsider. This includes:
3.1. Checking all the CSS to be reached, as the target page might refer to local CSS, which is unreachable locally at your end. Process the URLs of CSS files
3.2. Checking all the Javascript to be reached, as the target page might refer to local JS, which is unreachable locally at your end. Process the URLs of JS files
3.3. Apply the idea described in 3.1. and 3.2. for other resources, like images, until you are satisfied with the content of outsider
Create an iframe, having the source to point to outsider. outsider is inside your scope, so it should be shown
NOTE: If the site owning the target page does not like the possibility of you showing their content inside iframes, they might protect it by, let's say, having Javascript in their code, which checks whether the page is inside an iframe. Remove that code while processing the response to your request. If nothing else prevents you from showing the page in an iframe, then you should achieve success.
I have a facebook page tab iframe and would like to access the browser url in order to get the current facebook page url.
I know it's not possible to use a javascript that interacts with the parent frame because of browser security issues.
An approach that didn't work for all browsers was to read the HTTP_REFERER header from the request.
Is there a better way?
I hope this is impossible at all. Otherwise it will be a security issue, likely to be closed.
You should not write code depending on compromising other users.
It is not possible to get URL of a parent Frame due to cross-domain policy. And there is no way to get the information about page your application running on in client-side.
But on the server-side you can reconstruct the Page URL using details passed in signed_request. For Page Tab Applications it contains page:
A JSON object containing the page id string, the liked boolean (set to true if the user has liked the page, false if not) and the admin boolean (set to true if the user is an admin of the page, false if they're not).
Using that page id you can build the Page URL:
http://www.facebook.com/pages/-/PAGE_ID
If you want the link to your Page Tab with your application use:
http://www.facebook.com/pages/-/PAGE_ID?v=app_APPLICATION_ID
Beware, HTTP_REFERRER is provided by client and cannot be trusted, and it's may be cut by plugin/proxy/etc...
Notes:
Pages may have different URL in real life, but using this technique user will be landing the correct Page since Facebook will issue redirect to correct URL of a Page.
Sample URLs use HTTP scheme, feel free to use HTTPS if you need it.
In PHP for example you can detect the current scheme like this:
$scheme = ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']!=="off") ||
(isset($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
$_SERVER['HTTP_X_FORWARDED_PROTO']=="https")
) ? 'https' : 'http';
HTTP_REFERRER might not work as expected in my experience. If the tab app is designed for a specific page (which I suppose it kind of should), have you tried recreating it?
https://www.facebook.com/MYPAGENAME/app_MYAPPID
Where MYPAGENAME is your page name and MYAPPID is the app id, of course.
If the tab is applied to multiple pages though, I'm quite sure you'll get the relevant data to apply the above from https://graph.facebook.com/PAGEID, where PAGEID is the ID of the page which you get from the signed request.
My goal is that have a fb page app (only in one tab) and use it with linkable subpages inside it.
For example:
If I click on subpage link there would be a http or ajax request inside the iframe. Thats fine, i can do that.
BUT
in the solution I also want to implement these two features:
1.:
I want that page to be accessible directly from an url like:
http://facebook.com/pagename/app..blabla/subpage1
or
http://facebook.com/pagename/app..blabla&sk=535&subpage=1
or
http://facebook.com/pagename/app..blabla#subpage1
2.:
On subpage link click inside iframe I want the browser url to turn into something like mentioned in the 1. point. (even when using ajax - probably with a hash tag)
Is it possible?
If you look at the page tab tutorial http://developers.facebook.com/docs/appsonfacebook/pagetabs/ at the bottom of the page they describe how you can create the 'subpage' idea using the app_data parameter. So your links will look like http://www.facebook.com/YourPage?v=app_1234567890&app_data=any_string_here
For your second question, in the links on the page you would specify target="_top" in any links you have with the href being: http://www.facebook.com/YourPage?v=app_1234567890&app_data=subpage1. This will cause the entire page tab to load through Facebook and you'll get the signed_request and your app_data parameters.
You probably don't want your ajax to load through facebook, because you'll get the Facebook page back instead of json or whatever you are trying to load. Instead you'll just make ajax calls to your server and pass the parameters you need to, like app_data or whatever you want.
Maybe this is a stupid question and I did not understand exactly how Facebook applications work but here it goes
I want to implement a small e-shop as a Facebook application and for the products to have like button. The application will be instaled on a business page.
The problem is that the link for the like post on the wall will be to the actual eshop not to the facebook application on the business page.(or is it possible to make it to the application (eg. when you click the browser goes to the business page, selects the eshop tab, opens the product)?)
So actually I need to make a eshop site with 2 templates one for outside view and one for IFrame facebook view.
Is it possible to detect (from code-behind not in javascript) If the request is from the iframe or directly from outside?
Or the solution is more simple.. create a small version of the shop for browsing products only to be viewed in facebook and a full shop for outside view and the only relation between them is that when you click the like post from the first one you go to the second one?
I think I have found a solution...
I have created 2 domains that point to the eshop
shop.domainname & facebook.shop.domainname.
And in code behind I can check the Request.Url.Host if it starts with facebook.
For the facebook app the canvas url will be with facebook.shop.domainname and the links from the like button will be for the shop.domainname.
In this way I should be able to use 2 templates for the site and detect witch one I shoul use....
Upon install of my app on a Facebook Page, I'd like to send the user to an URL with further instructions. I'm starting the installation with http://facebook.com/add.php?api_key=app_api_key&page=page_id, which installs but redirects the user to the Facebook Page itself. It seems like various forms of redirect were available at some point:
Post-authorize callback URL. I can no longer find that in App settings.
The next parameter for add.php. I can't seem to get this to work
I have seen some apps that do redirect upon install, so I believe this is possible. Maybe it's using an old Post-authorize setting that's no longer visible?
Any help or point would be greatly appreciated! I'm also not attached to using add.php, if there's a Facebook Connect method that does this I'd use that instead (I'm looking at profile.addtab though that doesn't seem to work either).
You can set the redirect URL in the app properties. You can no longer set it from the developer control panel in Facebook, but you can still set it using the REST api.
The list of app properties is here: http://developers.facebook.com/docs/appproperties/
To set the "post_authorize_redirect_url" you would use something like this:
https://api.facebook.com/method/admin.setAppProperties?
access_token=CURRENTTOKEN&
properties={'post_authorize_redirect_url':'http://mydomain.com/post_authorize_folder/'}
I am not completely clear on this, but I believe the url needs to point to a folder, terminated with "/" rather than a specific file.
The callback gets two parameters:
installed = 1 (true)
fb_page_id = the page id when your app was installed
First page that Canvas is point to should have
< script type='text/javascript'>top.location.href = 'REDIRECT-URL';< /script>
So when your app is opened it will automaticaly redirect to REDIRECT-URL
I'm not sure that you can avoid opening of application canvas page after installing application.