Class: Puma::Binder

Inherits:
Object
  • Object
show all
Includes:
Const
Defined in:
lib/puma/binder.rb

Constant Summary

Constants included from Const

Const::CGI_VER, Const::CHUNK_SIZE, Const::CLOSE, Const::CLOSE_CHUNKED, Const::CODE_NAME, Const::COLON, Const::CONNECTION_CLOSE, Const::CONNECTION_KEEP_ALIVE, Const::CONTENT_LENGTH, Const::CONTENT_LENGTH2, Const::CONTENT_LENGTH_S, Const::CONTENT_TYPE, Const::DATE, Const::ERROR_400_RESPONSE, Const::ERROR_404_RESPONSE, Const::ERROR_500_RESPONSE, Const::ERROR_503_RESPONSE, Const::ETAG, Const::ETAG_FORMAT, Const::FAST_TRACK_KA_TIMEOUT, Const::FIRST_DATA_TIMEOUT, Const::GATEWAY_INTERFACE, Const::GET, Const::HALT_COMMAND, Const::HEAD, Const::HIJACK, Const::HIJACK_IO, Const::HIJACK_P, Const::HOST, Const::HTTP, Const::HTTPS, Const::HTTPS_KEY, Const::HTTP_10, Const::HTTP_10_200, Const::HTTP_11, Const::HTTP_11_200, Const::HTTP_CONNECTION, Const::HTTP_HOST, Const::HTTP_IF_MODIFIED_SINCE, Const::HTTP_IF_NONE_MATCH, Const::HTTP_VERSION, Const::HTTP_X_FORWARDED_FOR, Const::KEEP_ALIVE, Const::LAST_MODIFIED, Const::LINE_END, Const::LOCALHOST, Const::MAX_BODY, Const::MAX_HEADER, Const::NEWLINE, Const::PATH_INFO, Const::PERSISTENT_TIMEOUT, Const::PORT_443, Const::PORT_80, Const::PUMA_CONFIG, Const::PUMA_SOCKET, Const::PUMA_TMP_BASE, Const::PUMA_VERSION, Const::RACK_AFTER_REPLY, Const::RACK_INPUT, Const::RACK_URL_SCHEME, Const::REDIRECT, Const::REMOTE_ADDR, Const::REQUEST_METHOD, Const::REQUEST_PATH, Const::REQUEST_URI, Const::RESTART_COMMAND, Const::SCRIPT_NAME, Const::SERVER_NAME, Const::SERVER_PORT, Const::SERVER_PROTOCOL, Const::SERVER_SOFTWARE, Const::SLASH, Const::STATUS_FORMAT, Const::STOP_COMMAND, Const::TRANSFER_ENCODING, Const::TRANSFER_ENCODING_CHUNKED

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(events) ⇒ Binder

Returns a new instance of Binder.



7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 
# File 'lib/puma/binder.rb', line 7

def initialize(events)
  @events = events
  @listeners = []
  @inherited_fds = {}
  @unix_paths = []

  @proto_env = {
    "rack.version".freeze => Rack::VERSION,
    "rack.errors".freeze => events.stderr,
    "rack.multithread".freeze => true,
    "rack.multiprocess".freeze => false,
    "rack.run_once".freeze => false,
    "SCRIPT_NAME".freeze => ENV['SCRIPT_NAME'] || "",

    # Rack blows up if this is an empty string, and Rack::Lint
    # blows up if it's nil. So 'text/plain' seems like the most
    # sensible default value.
    "CONTENT_TYPE".freeze => "text/plain",

    "QUERY_STRING".freeze => "",
    SERVER_PROTOCOL => HTTP_11,
    SERVER_SOFTWARE => PUMA_VERSION,
    GATEWAY_INTERFACE => CGI_VER
  }

  @envs = {}
  @ios = []
end

Instance Attribute Details

#ios ⇒ Object (readonly)

Returns the value of attribute ios.



36
37
38
 
# File 'lib/puma/binder.rb', line 36

def ios
  @ios
end

#listeners ⇒ Object (readonly)

Returns the value of attribute listeners.



36
37
38
 
# File 'lib/puma/binder.rb', line 36

def listeners
  @listeners
end

Instance Method Details

#add_ssl_listener(host, port, ctx, optimize_for_latency = true, backlog = 1024) ⇒ Object 



211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
 
# File 'lib/puma/binder.rb', line 211

def add_ssl_listener(host, port, ctx,
                     optimize_for_latency=true, backlog=1024)
  if IS_JRUBY
    @events.error "SSL not supported on JRuby"
    raise UnsupportedOption
  end

  require 'puma/minissl'

  s = TCPServer.new(host, port)
  if optimize_for_latency
    s.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1)
  end
  s.setsockopt(Socket::SOL_SOCKET,Socket::SO_REUSEADDR, true)
  s.listen backlog

  ssl = MiniSSL::Server.new s, ctx
  env = @proto_env.dup
  env[HTTPS_KEY] = HTTPS
  @envs[ssl] = env

  @ios << ssl
  s
end

#add_tcp_listener(host, port, optimize_for_latency = true, backlog = 1024) ⇒ Object

Tell the server to listen on host host, port port. If optimize_for_latency is true (the default) then clients connecting will be optimized for latency over throughput.

backlog indicates how many unaccepted connections the kernel should allow to accumulate before returning connection refused.



188
189
190
191
192
193
194
195
196
197
198
 
# File 'lib/puma/binder.rb', line 188

def add_tcp_listener(host, port, optimize_for_latency=true, backlog=1024)
  host = host[1..-2] if host[0..0] == '['
  s = TCPServer.new(host, port)
  if optimize_for_latency
    s.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1)
  end
  s.setsockopt(Socket::SOL_SOCKET,Socket::SO_REUSEADDR, true)
  s.listen backlog
  @ios << s
  s
end

#add_unix_listener(path, umask = nil) ⇒ Object

Tell the server to listen on path as a UNIX domain socket.



250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
 
# File 'lib/puma/binder.rb', line 250

def add_unix_listener(path, umask=nil)
  @unix_paths << path

  # Let anyone connect by default
  umask ||= 0

  begin
    old_mask = File.umask(umask)

    if File.exists? path
      begin
        old = UNIXSocket.new path
      rescue SystemCallError
        File.unlink path
      else
        old.close
        raise "There is already a server bound to: #{path}"
      end
    end

    s = UNIXServer.new(path)
    @ios << s
  ensure
    File.umask old_mask
  end

  s
end

#close ⇒ Object 



42
43
44
45
 
# File 'lib/puma/binder.rb', line 42

def close
  @ios.each { |i| i.close }
  @unix_paths.each { |i| File.unlink i }
end

#env(sock) ⇒ Object 



38
39
40
 
# File 'lib/puma/binder.rb', line 38

def env(sock)
  @envs.fetch(sock, @proto_env)
end

#import_from_env ⇒ Object 



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
 
# File 'lib/puma/binder.rb', line 47

def import_from_env
  remove = []

  ENV.each do |k,v|
    if k =~ /PUMA_INHERIT_\d+/
      fd, url = v.split(":", 2)
      @inherited_fds[url] = fd.to_i
      remove << k
    end
    if k =~ /LISTEN_FDS/ && ENV['LISTEN_PID'].to_i == $$
      v.to_i.times do |num|
        fd = num + 3
        sock = TCPServer.for_fd(fd)
        begin
          url = "unix://" + Socket.unpack_sockaddr_un(sock.getsockname)
        rescue ArgumentError
          port, addr = Socket.unpack_sockaddr_in(sock.getsockname)
          if addr =~ /\:/
            addr = "[#{addr}]"
          end
          url = "tcp://#{addr}:#{port}"
        end
        @inherited_fds[url] = sock
      end
      ENV.delete k
      ENV.delete 'LISTEN_PID'
    end
  end

  remove.each do |k|
    ENV.delete k
  end
end

#inherit_tcp_listener(host, port, fd) ⇒ Object 



200
201
202
203
204
205
206
207
208
209
 
# File 'lib/puma/binder.rb', line 200

def inherit_tcp_listener(host, port, fd)
  if fd.kind_of? TCPServer
    s = fd
  else
    s = TCPServer.for_fd(fd)
  end

  @ios << s
  s
end

#inherit_unix_listener(path, fd) ⇒ Object 



279
280
281
282
283
284
285
286
287
288
289
290
 
# File 'lib/puma/binder.rb', line 279

def inherit_unix_listener(path, fd)
  @unix_paths << path

  if fd.kind_of? TCPServer
    s = fd
  else
    s = UNIXServer.for_fd fd
  end
  @ios << s

  s
end

#inherited_ssl_listener(fd, ctx) ⇒ Object 



236
237
238
239
240
241
242
243
244
245
246
 
# File 'lib/puma/binder.rb', line 236

def inherited_ssl_listener(fd, ctx)
  if IS_JRUBY
    @events.error "SSL not supported on JRuby"
    raise UnsupportedOption
  end

  require 'puma/minissl'
  s = TCPServer.for_fd(fd)
  @ios << MiniSSL::Server.new(s, ctx)
  s
end

#parse(binds, logger) ⇒ Object 



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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
 
# File 'lib/puma/binder.rb', line 81

def parse(binds, logger)
  binds.each do |str|
    uri = URI.parse str
    case uri.scheme
    when "tcp"
      if fd = @inherited_fds.delete(str)
        logger.log "* Inherited #{str}"
        io = inherit_tcp_listener uri.host, uri.port, fd
      else
        logger.log "* Listening on #{str}"
        io = add_tcp_listener uri.host, uri.port
      end

      @listeners << [str, io]
    when "unix"
      path = "#{uri.host}#{uri.path}"

      if fd = @inherited_fds.delete(str)
        logger.log "* Inherited #{str}"
        io = inherit_unix_listener path, fd
      else
        logger.log "* Listening on #{str}"

        umask = nil

        if uri.query
          params = Rack::Utils.parse_query uri.query
          if u = params['umask']
            # Use Integer() to respect the 0 prefix as octal
            umask = Integer(u)
          end
        end

        io = add_unix_listener path, umask
      end

      @listeners << [str, io]
    when "ssl"
      if IS_JRUBY
        @events.error "SSL not supported on JRuby"
        raise UnsupportedOption
      end

      params = Rack::Utils.parse_query uri.query
      require 'puma/minissl'

      ctx = MiniSSL::Context.new
      unless params['key']
        @events.error "Please specify the SSL key via 'key='"
      end

      ctx.key = params['key']

      unless params['cert']
        @events.error "Please specify the SSL cert via 'cert='"
      end

      ctx.cert = params['cert']

      ctx.verify_mode = MiniSSL::VERIFY_NONE

      if fd = @inherited_fds.delete(str)
        logger.log "* Inherited #{str}"
        io = inherited_ssl_listener fd, ctx
      else
        logger.log "* Listening on #{str}"
        io = add_ssl_listener uri.host, uri.port, ctx
      end

      @listeners << [str, io]
    else
      logger.error "Invalid URI: #{str}"
    end
  end

  # If we inherited fds but didn't use them (because of a
  # configuration change), then be sure to close them.
  @inherited_fds.each do |str, fd|
    logger.log "* Closing unused inherited connection: #{str}"

    begin
      if fd.kind_of? TCPServer
        fd.close
      else
        IO.for_fd(fd).close
      end

    rescue SystemCallError
    end

    # We have to unlink a unix socket path that's not being used
    uri = URI.parse str
    if uri.scheme == "unix"
      path = "#{uri.host}#{uri.path}"
      File.unlink path
    end
  end

end