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


23
24
25
26
27
28
29
30
31
32
# File 'lib/rack/handler/fastcgi.rb', line 23

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

.send_body(out, body) ⇒ Object


94
95
96
97
98
99
# File 'lib/rack/handler/fastcgi.rb', line 94

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

.send_headers(out, status, headers) ⇒ Object


83
84
85
86
87
88
89
90
91
92
# File 'lib/rack/handler/fastcgi.rb', line 83

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


45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
# File 'lib/rack/handler/fastcgi.rb', line 45

def self.serve(request, 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_RUNONCE      => 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

.valid_optionsObject


34
35
36
37
38
39
40
41
42
43
# File 'lib/rack/handler/fastcgi.rb', line 34

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)",
    "File=PATH" => "Creates a Domain socket at PATH instead of a TCP socket. Ignores Host and Port if set.",
  }
end