Class: Rack::Handler::WEBrick

Inherits:
WEBrick::HTTPServlet::AbstractServlet
  • Object
show all
Defined in:
lib/rack/handler/webrick.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(server, app) ⇒ WEBrick

Returns a new instance of WEBrick.



61
62
63
64
 
# File 'lib/rack/handler/webrick.rb', line 61

def initialize(server, app)
  super server
  @app = app
end

Class Method Details

.run(app, **options) {|@server| ... } ⇒ Object

Yields:

  • (@server) 


26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/rack/handler/webrick.rb', line 26

def self.run(app, **options)
  environment  = ENV['RACK_ENV'] || 'development'
  default_host = environment == 'development' ? 'localhost' : nil

  if !options[:BindAddress] || options[:Host]
    options[:BindAddress] = options.delete(:Host) || default_host
  end
  options[:Port] ||= 8080
  if options[:SSLEnable]
    require 'webrick/https'
  end

  @server = ::WEBrick::HTTPServer.new(options)
  @server.mount "/", Rack::Handler::WEBrick, app
  yield @server  if block_given?
  @server.start
end

.shutdown ⇒ Object 



54
55
56
57
58
59
 
# File 'lib/rack/handler/webrick.rb', line 54

def self.shutdown
  if @server
    @server.shutdown
    @server = nil
  end
end

.valid_options ⇒ Object 



44
45
46
47
48
49
50
51
52
 
# File 'lib/rack/handler/webrick.rb', line 44

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

Instance Method Details

#service(req, res) ⇒ Object 



66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
 
# File 'lib/rack/handler/webrick.rb', line 66

def service(req, res)
  res.rack = true
  env = req.meta_vars
  env.delete_if { |k, v| v.nil? }

  rack_input = StringIO.new(req.body.to_s)
  rack_input.set_encoding(Encoding::BINARY)

  env.update(
    RACK_VERSION      => Rack::VERSION,
    RACK_INPUT        => rack_input,
    RACK_ERRORS       => $stderr,
    RACK_MULTITHREAD  => true,
    RACK_MULTIPROCESS => false,
    RACK_RUNONCE      => false,
    RACK_URL_SCHEME   => ["yes", "on", "1"].include?(env[HTTPS]) ? "https" : "http",
    RACK_IS_HIJACK    => true,
    RACK_HIJACK       => lambda { raise NotImplementedError, "only partial hijack is supported."},
    RACK_HIJACK_IO    => nil
  )

  env[HTTP_VERSION] ||= env[SERVER_PROTOCOL]
  env[QUERY_STRING] ||= ""
  unless env[PATH_INFO] == ""
    path, n = req.request_uri.path, env[SCRIPT_NAME].length
    env[PATH_INFO] = path[n, path.length - n]
  end
  env[REQUEST_PATH] ||= [env[SCRIPT_NAME], env[PATH_INFO]].join

  status, headers, body = @app.call(env)
  begin
    res.status = status.to_i
    io_lambda = nil
    headers.each { |k, vs|
      if k == RACK_HIJACK
        io_lambda = vs
      elsif k.downcase == "set-cookie"
        res.cookies.concat vs.split("\n")
      else
        # Since WEBrick won't accept repeated headers,
        # merge the values per RFC 1945 section 4.2.
        res[k] = vs.split("\n").join(", ")
      end
    }

    if io_lambda
      rd, wr = IO.pipe
      res.body = rd
      res.chunked = true
      io_lambda.call wr
    elsif body.respond_to?(:to_path)
      res.body = ::File.open(body.to_path, 'rb')
    else
      body.each { |part|
        res.body << part
      }
    end
  ensure
    body.close  if body.respond_to? :close
  end
end