app = Proc.new do |env| body = env['rack.input'].read version = env['rack.version'].join('') ['200', { 'Content-Type' => env['CONTENT_TYPE'], 'Content-Length' => body.length.to_s, 'Request-Method' => env['REQUEST_METHOD'], 'Request-Uri' => env['REQUEST_URI'], 'Http-Host' => env['HTTP_HOST'], 'Server-Protocol' => env['SERVER_PROTOCOL'], 'Server-Software' => env['SERVER_SOFTWARE'], 'Custom-Header' => env['HTTP_CUSTOM_HEADER'], 'Rack-Version' => version, 'Rack-Url-Scheme' => env['rack.url_scheme'], 'Rack-Multithread' => env['rack.multithread'].to_s, 'Rack-Multiprocess' => env['rack.multiprocess'].to_s, 'Rack-Run-Once' => env['rack.run_once'].to_s, 'Rack-Hijack-Q' => env['rack.hijack?'].to_s, 'Rack-Hijack' => env['rack.hijack'].to_s, 'Rack-Hijack-IO' => env['rack.hijack_io'].to_s }, [body]] end run app