vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/rack/handler/cgi.rb

   1 require 'rack/content_length'
   2
   3 module Rack
   4   module Handler
   5     class CGI
   6       def self.run(app, options=nil)
   7         serve app
   8       end
   9
  10       def self.serve(app)
  11         app = ContentLength.new(app)
  12
  13         env = ENV.to_hash
  14         env.delete "HTTP_CONTENT_LENGTH"
  15
  16         env["SCRIPT_NAME"] = ""  if env["SCRIPT_NAME"] == "/"
  17
  18         env.update({"rack.version" => [0,1],
  19                      "rack.input" => $stdin,
  20                      "rack.errors" => $stderr,
  21
  22                      "rack.multithread" => false,
  23                      "rack.multiprocess" => true,
  24                      "rack.run_once" => true,
  25
  26                      "rack.url_scheme" => ["yes", "on", "1"].include?(ENV["HTTPS"]) ? "https" : "http"
  27                    })
  28
  29         env["QUERY_STRING"] ||= ""
  30         env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"]
  31         env["REQUEST_PATH"] ||= "/"
  32
  33         status, headers, body = app.call(env)
  34         begin
  35           send_headers status, headers
  36           send_body body
  37         ensure
  38           body.close  if body.respond_to? :close
  39         end
  40       end
  41
  42       def self.send_headers(status, headers)
  43         STDOUT.print "Status: #{status}\r\n"
  44         headers.each { |k, vs|
  45           vs.split("\n").each { |v|
  46             STDOUT.print "#{k}: #{v}\r\n"
  47           }
  48         }
  49         STDOUT.print "\r\n"
  50         STDOUT.flush
  51       end
  52
  53       def self.send_body(body)
  54         body.each { |part|
  55           STDOUT.print part
  56           STDOUT.flush
  57         }
  58       end
  59     end
  60   end
  61 end