Class: Rack::Handler::FastCGI

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

Class Method Summary collapse

Class Method Details

.run(app, options = {}) ⇒ Object


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# File 'lib/rack/handler/fastcgi.rb', line 21

def self.run(app, options={})
  file = options[:File] and STDIN.reopen(UNIXServer.new(file))
  port = options[:Port] and STDIN.reopen(TCPServer.new(port))
  FCGI.each { |request|
    serve request, app
  }
end

.send_body(out, body) ⇒ Object


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# File 'lib/rack/handler/fastcgi.rb', line 81

def self.send_body(out, body)
  body.each { |part|
    out.print part
    out.flush
  }
end

.send_headers(out, status, headers) ⇒ Object


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# File 'lib/rack/handler/fastcgi.rb', line 70

def self.send_headers(out, status, headers)
  out.print "Status: #{status}\r\n"
  headers.each { |k, vs|
    vs.split("\n").each { |v|
      out.print "#{k}: #{v}\r\n"
    }
  }
  out.print "\r\n"
  out.flush
end

.serve(request, app) ⇒ Object


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# File 'lib/rack/handler/fastcgi.rb', line 29

def self.serve(request, app)
  app = Rack::ContentLength.new(app)

  env = request.env
  env.delete "HTTP_CONTENT_LENGTH"

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

  rack_input = RewindableInput.new(request.in)

  env.update({"rack.version" => Rack::VERSION,
               "rack.input" => rack_input,
               "rack.errors" => request.err,

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

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

  env["QUERY_STRING"] ||= ""
  env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"]
  env["REQUEST_PATH"] ||= "/"
  env.delete "CONTENT_TYPE"  if env["CONTENT_TYPE"] == ""
  env.delete "CONTENT_LENGTH"  if env["CONTENT_LENGTH"] == ""

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