Class: Falcon::Adapters::Rewindable

Inherits:
Async::HTTP::Middleware
  • Object
show all
Defined in:
lib/falcon/adapters/rewindable.rb

Overview

Content type driven input buffering.

Constant Summary collapse

BUFFERED_MEDIA_TYPES = 
%r{
  application/x-www-form-urlencoded|
  multipart/form-data|
  multipart/related|
  multipart/mixed
}x
POST = 
'POST'.freeze

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Rewindable

Returns a new instance of Rewindable.



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# File 'lib/falcon/adapters/rewindable.rb', line 36

def initialize(app)
  super(app)
end

Instance Method Details

#call(request) ⇒ Async::HTTP::Response

Wrap the request body in a rewindable buffer.

Returns:

  • (Async::HTTP::Response) —

    the response.



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# File 'lib/falcon/adapters/rewindable.rb', line 56

def call(request)
  if body = request.body and needs_rewind?(request)
    request.body = Async::HTTP::Body::Rewindable.new(body)
  end
  
  return super
end

#needs_rewind?(request) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/falcon/adapters/rewindable.rb', line 40

def needs_rewind?(request)
  content_type = request.headers['content-type']
  
  if request.method == POST and content_type.nil?
    return true
  end
  
  if BUFFERED_MEDIA_TYPES =~ content_type
    return true
  end
  
  return false
end