If you want to force your user to use your application within in an iFrame (either as a canvas app or as a fan page application), the only way to do so is using JavaScript. Here is some sample code you can use.
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Articles posted by Niraj Shah
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Requesting Every Facebook App Permission
Ever wondered what a Facebook App requesting every possible permission would look like?
Application, FacebookFT Editorial App

I created a second Facebook app for the Financial Times that scrapes a number of RSS feeds to bring in editorial content into Facebook. The app uses XML for flat-file storage and caching to speed up loading.
Tagging in SVN
Tagging app releases in SVN to preserve the code and history.
Samsung Galaxy Nexus and Android 4.0
My first week with Android 4.0 and the Samsung / Google Galaxy Nexus
Android, Google Galaxy Nexus