class Rack::Handler::SCGI - rack-1.6.2 Documentation

# class Rack::Handler::SCGI

### Attributes

app[RW]

### Public Class Methods

new(settings = {}) click to toggle source
Calls superclass method

    # File lib/rack/handler/scgi.rb, line 29
    def initialize(settings = {})
      @app = settings[:app]
      super(settings)
    end

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

    # File lib/rack/handler/scgi.rb, line 11
    def self.run(app, options=nil)
      options[:Socket] = UNIXServer.new(options[:File]) if options[:File]
      new(options.merge(:app=>app,
                        :host=>options[:Host],
                        :port=>options[:Port],
                        :socket=>options[:Socket])).listen
    end

valid_options() click to toggle source

    # File lib/rack/handler/scgi.rb, line 19
    def self.valid_options
      environment  = ENV['RACK_ENV'] || 'development'
      default_host = environment == 'development' ? 'localhost' : '0.0.0.0'

      {
        "Host=HOST" => "Hostname to listen on (default: #{default_host})",
        "Port=PORT" => "Port to listen on (default: 8080)",
      }
    end

### Public Instance Methods

process_request(request, input_body, socket) click to toggle source

    # File lib/rack/handler/scgi.rb, line 34
    def process_request(request, input_body, socket)
      env = Hash[request]
      env.delete "HTTP_CONTENT_TYPE"
      env.delete "HTTP_CONTENT_LENGTH"
      env["REQUEST_PATH"], env[QUERY_STRING] = env["REQUEST_URI"].split('?', 2)
      env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"]
      env[PATH_INFO] = env["REQUEST_PATH"]
      env["QUERY_STRING"] ||= ""
      env["SCRIPT_NAME"] = ""

      rack_input = StringIO.new(input_body)
      rack_input.set_encoding(Encoding::BINARY) if rack_input.respond_to?(:set_encoding)

      env.update({"rack.version" => Rack::VERSION,
                   "rack.input" => rack_input,
                   "rack.errors" => $stderr,
                   "rack.multithread" => true,
                   "rack.multiprocess" => true,
                   "rack.run_once" => false,

                   "rack.url_scheme" => ["yes", "on", "1"].include?(env["HTTPS"]) ? "https" : "http"
                 })
      status, headers, body = app.call(env)
      begin
        socket.write("Status: #{status}\r\n")
        headers.each do |k, vs|
          vs.split("\n").each { |v| socket.write("#{k}: #{v}\r\n")}
        end
        socket.write("\r\n")
        body.each {|s| socket.write(s)}
      ensure
        body.close if body.respond_to? :close
      end
    end