module FacebookCanvas

This middleware modifies the `REQUEST_METHOD` if needed and should be inserted after the middleware `Rack::MethodOverride`

All requests coming from Facebook to our canvas are POST requests. We need to check whether the request was originally a GET request. We assume that Rails inserts a hidden parameter called `utf8` for all non GET requests.

So if this parameter is missing, the request is a `GET` request and therefor we force the `REQUEST_METHOD` to GET.

Addionally you can restrict `REQUEST_METHOD` rewriting by providing a `custom_filter` block.

stolen from: github.com/mkdynamic/omniauth-facebook/blob/master/lib/omniauth/facebook/signed_request.rb

Constants

VERSION

Public Class Methods

inside!(env) click to toggle source

# File lib/facebook_canvas.rb, line 13
def self.inside!(env)
  Middleware.inside!(env)
end

inside?(env) click to toggle source

# File lib/facebook_canvas.rb, line 9
def self.inside?(env)
  Middleware.inside?(env)
end