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_408_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, Const::WRITE_TIMEOUT

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(events) ⇒ Binder

Returns a new instance of Binder



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# 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

#iosObject (readonly)

Returns the value of attribute ios



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

def ios
  @ios
end

#listenersObject (readonly)

Returns the value of attribute listeners



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# 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



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# File 'lib/puma/binder.rb', line 231

def add_ssl_listener(host, port, ctx,
                     optimize_for_latency=true, backlog=1024)
  require 'puma/minissl'

  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

  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.



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# File 'lib/puma/binder.rb', line 208

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, mode = nil) ⇒ Object

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



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# File 'lib/puma/binder.rb', line 268

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

  # Let anyone connect by default
  umask ||= 0

  begin
    old_mask = File.umask(umask)

    if File.exist? path
      begin
        old = UNIXSocket.new path
      rescue SystemCallError, IOError
        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

  if mode
    File.chmod mode, path
  end

  env = @proto_env.dup
  env[REMOTE_ADDR] = "127.0.0.1"
  @envs[s] = env

  s
end

#closeObject



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# 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



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

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

#import_from_envObject



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# 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



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# File 'lib/puma/binder.rb', line 220

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



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# File 'lib/puma/binder.rb', line 305

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

  env = @proto_env.dup
  env[REMOTE_ADDR] = "127.0.0.1"
  @envs[s] = env

  s
end

#inherited_ssl_listener(fd, ctx) ⇒ Object



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# File 'lib/puma/binder.rb', line 252

def inherited_ssl_listener(fd, ctx)
  require 'puma/minissl'
  s = TCPServer.for_fd(fd)
  ssl = MiniSSL::Server.new(s, ctx)

  env = @proto_env.dup
  env[HTTPS_KEY] = HTTPS
  @envs[ssl] = env

  @ios << ssl

  s
end

#parse(binds, logger) ⇒ Object



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# 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
        params = Rack::Utils.parse_query uri.query

        opt = params.key?('low_latency')
        bak = params.fetch('backlog', 1024).to_i

        logger.log "* Listening on #{str}"
        io = add_tcp_listener uri.host, uri.port, opt, bak
      end

      @listeners << [str, io]
    when "unix"
      path = "#{uri.host}#{uri.path}".gsub("%20", " ")

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

        umask = nil
        mode = 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

          if u = params['mode']
            mode = Integer('0'+u)
          end
        end

        io = add_unix_listener path, umask, mode
      end

      @listeners << [str, io]
    when "ssl"
      params = Rack::Utils.parse_query uri.query
      require 'puma/minissl'

      ctx = MiniSSL::Context.new

      if defined?(JRUBY_VERSION)
        unless params['keystore']
          @events.error "Please specify the Java keystore via 'keystore='"
        end

        ctx.keystore = params['keystore']

        unless params['keystore-pass']
          @events.error "Please specify the Java keystore password  via 'keystore-pass='"
        end

        ctx.keystore_pass = params['keystore-pass']
      else
        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']
      end

      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