Class: Rack::Head

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/head.rb

Overview

Rack::Head returns an empty body for all HEAD requests. It leaves all other requests unchanged.

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Head


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# File 'lib/rack/head.rb', line 9

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object


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# File 'lib/rack/head.rb', line 13

def call(env)
  status, headers, body = @app.call(env)

  if env[REQUEST_METHOD] == HEAD
    [
      status, headers, Rack::BodyProxy.new([]) do
        body.close if body.respond_to? :close
      end
    ]
  else
    [status, headers, body]
  end
end