class Rack::Handler::CGI - rack-1.6.1 Documentation

# class Rack::Handler::CGI

### Public Class Methods

run(app, options=nil) click to toggle source

    # File lib/rack/handler/cgi.rb, line 7
    def self.run(app, options=nil)
      $stdin.binmode
      serve app
    end

send_body(body) click to toggle source

    # File lib/rack/handler/cgi.rb, line 53
    def self.send_body(body)
      body.each { |part|
        $stdout.print part
        $stdout.flush
      }
    end

send_headers(status, headers) click to toggle source

    # File lib/rack/handler/cgi.rb, line 42
    def self.send_headers(status, headers)
      $stdout.print "Status: #{status}\r\n"
      headers.each { |k, vs|
        vs.split("\n").each { |v|
          $stdout.print "#{k}: #{v}\r\n"
        }
      }
      $stdout.print "\r\n"
      $stdout.flush
    end

serve(app) click to toggle source

    # File lib/rack/handler/cgi.rb, line 12
    def self.serve(app)
      env = ENV.to_hash
      env.delete "HTTP_CONTENT_LENGTH"

      env["SCRIPT_NAME"] = ""  if env["SCRIPT_NAME"] == "/"

      env.update({"rack.version" => Rack::VERSION,
                   "rack.input" => Rack::RewindableInput.new($stdin),
                   "rack.errors" => $stderr,

                   "rack.multithread" => false,
                   "rack.multiprocess" => true,
                   "rack.run_once" => true,

                   "rack.url_scheme" => ["yes", "on", "1"].include?(ENV["HTTPS"]) ? "https" : "http"
                 })

      env[QUERY_STRING]   ||= ""
      env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"]
      env["REQUEST_PATH"] ||= "/"

      status, headers, body = app.call(env)
      begin
        send_headers status, headers
        send_body body
      ensure
        body.close  if body.respond_to? :close
      end
    end