Class: Etna::CrossOrigin

Inherits:
Object
  • Object
show all
Defined in:
lib/etna/cross_origin.rb

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ CrossOrigin

Returns a new instance of CrossOrigin.



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# File 'lib/etna/cross_origin.rb', line 3

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/etna/cross_origin.rb', line 7

def call(env)
  request = Rack::Request.new(env)

  # Don't filter unless this is a CORS request
  return actual_response(request) unless has_header?(request, :origin)

  # OPTIONS requests are a 'preflight' request
  if request.request_method == 'OPTIONS'
    return preflight_response(request)
  end

  # The actual request following a preflight should
  # set some extra headers
  return postflight_response(request)
end