class Puma::Binder
Constants
- RACK_VERSION
Attributes
@version 5.0.0
@version 5.0.0
@version 5.0.0
@version 5.0.0
@version 5.0.0
@version 5.0.0
Public Class Methods
Source
# File lib/puma/binder.rb, line 22 def initialize(log_writer, conf = Configuration.new) @log_writer = log_writer @conf = conf @listeners = [] @inherited_fds = {} @activated_sockets = {} @unix_paths = [] @proto_env = { "rack.version".freeze => RACK_VERSION, "rack.errors".freeze => log_writer.stderr, "rack.multithread".freeze => conf.options[:max_threads] > 1, "rack.multiprocess".freeze => conf.options[:workers] >= 1, "rack.run_once".freeze => false, RACK_URL_SCHEME => conf.options[:rack_url_scheme], "SCRIPT_NAME".freeze => ENV['SCRIPT_NAME'] || "", # I'd like to set a default CONTENT_TYPE here but some things # depend on their not being a default set and inferring # it from the content. And so if i set it here, it won't # infer properly. "QUERY_STRING".freeze => "", SERVER_SOFTWARE => PUMA_SERVER_STRING, GATEWAY_INTERFACE => CGI_VER } @envs = {} @ios = [] end
Public Instance Methods
Source
# File lib/puma/binder.rb, line 353 def add_ssl_listener(host, port, ctx, optimize_for_latency=true, backlog=1024) raise "Puma compiled without SSL support" unless HAS_SSL # Puma will try to use local authority context if context is supplied nil ctx ||= localhost_authority_context if host == "localhost" loopback_addresses.each do |addr| add_ssl_listener addr, port, ctx, optimize_for_latency, backlog end return end host = host[1..-2] if host&.start_with? '[' 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
Source
# File lib/puma/binder.rb, line 325 def add_tcp_listener(host, port, optimize_for_latency=true, backlog=1024) if host == "localhost" loopback_addresses.each do |addr| add_tcp_listener addr, port, optimize_for_latency, backlog end return end host = host[1..-2] if host&.start_with? '[' tcp_server = TCPServer.new(host, port) if optimize_for_latency tcp_server.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1) end tcp_server.setsockopt(Socket::SOL_SOCKET,Socket::SO_REUSEADDR, true) tcp_server.listen backlog @ios << tcp_server tcp_server end
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.
Source
# File lib/puma/binder.rb, line 404 def add_unix_listener(path, umask=nil, mode=nil, backlog=1024) # 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.sub(/\A@/, "\0") # check for abstract UNIXSocket s.listen backlog @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
Tell the server to listen on path
as a UNIX domain socket.
Source
# File lib/puma/binder.rb, line 451 def close_listeners @listeners.each do |l, io| begin io.close unless io.closed? uri = URI.parse l next unless uri.scheme == 'unix' unix_path = "#{uri.host}#{uri.path}" File.unlink unix_path if @unix_paths.include?(unix_path) && File.exist?(unix_path) rescue Errno::EBADF end end end
Source
# File lib/puma/binder.rb, line 71 def connected_ports t = ios.map { |io| io.addr[1] }; t.uniq!; t end
@!attribute [r] connected_ports
@version 5.0.0
Source
# File lib/puma/binder.rb, line 89 def create_activated_fds(env_hash) @log_writer.debug "ENV['LISTEN_FDS'] #{ENV['LISTEN_FDS'].inspect} env_hash['LISTEN_PID'] #{env_hash['LISTEN_PID'].inspect}" return [] unless env_hash['LISTEN_FDS'] && env_hash['LISTEN_PID'].to_i == $$ env_hash['LISTEN_FDS'].to_i.times do |index| sock = TCPServer.for_fd(socket_activation_fd(index)) key = begin # Try to parse as a path [:unix, Socket.unpack_sockaddr_un(sock.getsockname)] rescue ArgumentError # Try to parse as a port/ip port, addr = Socket.unpack_sockaddr_in(sock.getsockname) addr = "[#{addr}]" if addr&.include? ':' [:tcp, addr, port] end @activated_sockets[key] = sock @log_writer.debug "Registered #{key.join ':'} for activation from LISTEN_FDS" end ["LISTEN_FDS", "LISTEN_PID"] # Signal to remove these keys from ENV end
systemd socket activation. LISTEN_FDS = number of listening sockets. e.g. 2 means accept on 2 sockets w/descriptors 3 and 4. LISTEN_PID = PID of the service process, aka us @see www.freedesktop.org/software/systemd/man/systemd-socket-activate.html @version 5.0.0
Source
# File lib/puma/binder.rb, line 76 def create_inherited_fds(env_hash) env_hash.select {|k,v| k =~ /PUMA_INHERIT_\d+/}.each do |_k, v| fd, url = v.split(":", 2) @inherited_fds[url] = fd.to_i end.keys # pass keys back for removal end
@version 5.0.0
Source
# File lib/puma/binder.rb, line 61 def env(sock) @envs.fetch(sock, @proto_env) end
Source
# File lib/puma/binder.rb, line 384 def inherit_ssl_listener(fd, ctx) raise "Puma compiled without SSL support" unless HAS_SSL # Puma will try to use local authority context if context is supplied nil ctx ||= localhost_authority_context s = fd.kind_of?(::TCPServer) ? fd : ::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
Source
# File lib/puma/binder.rb, line 346 def inherit_tcp_listener(host, port, fd) s = fd.kind_of?(::TCPServer) ? fd : ::TCPServer.for_fd(fd) @ios << s s end
Source
# File lib/puma/binder.rb, line 439 def inherit_unix_listener(path, fd) s = fd.kind_of?(::TCPServer) ? fd : ::UNIXServer.for_fd(fd) @ios << s env = @proto_env.dup env[REMOTE_ADDR] = "127.0.0.1" @envs[s] = env s end
Source
# File lib/puma/binder.rb, line 144 def parse(binds, log_writer = nil, log_msg = 'Listening') log_writer ||= @log_writer binds.each do |str| uri = URI.parse str case uri.scheme when "tcp" if fd = @inherited_fds.delete(str) io = inherit_tcp_listener uri.host, uri.port, fd log_writer.log "* Inherited #{str}" elsif sock = @activated_sockets.delete([ :tcp, uri.host, uri.port ]) io = inherit_tcp_listener uri.host, uri.port, sock log_writer.log "* Activated #{str}" else ios_len = @ios.length params = Util.parse_query uri.query low_latency = params.key?('low_latency') && params['low_latency'] != 'false' backlog = params.fetch('backlog', 1024).to_i io = add_tcp_listener uri.host, uri.port, low_latency, backlog @ios[ios_len..-1].each do |i| addr = loc_addr_str i log_writer.log "* #{log_msg} on http://#{addr}" end end @listeners << [str, io] if io when "unix" path = "#{uri.host}#{uri.path}".gsub("%20", " ") abstract = false if str.start_with? 'unix://@' raise "OS does not support abstract UNIXSockets" unless Puma.abstract_unix_socket? abstract = true path = "@#{path}" end if fd = @inherited_fds.delete(str) @unix_paths << path unless abstract || File.exist?(path) io = inherit_unix_listener path, fd log_writer.log "* Inherited #{str}" elsif sock = @activated_sockets.delete([ :unix, path ]) || @activated_sockets.delete([ :unix, File.realdirpath(path) ]) @unix_paths << path unless abstract || File.exist?(path) io = inherit_unix_listener path, sock log_writer.log "* Activated #{str}" else umask = nil mode = nil backlog = 1024 if uri.query params = Util.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 if u = params['backlog'] backlog = Integer(u) end end @unix_paths << path unless abstract || File.exist?(path) io = add_unix_listener path, umask, mode, backlog log_writer.log "* #{log_msg} on #{str}" end @listeners << [str, io] when "ssl" cert_key = %w[cert key] raise "Puma compiled without SSL support" unless HAS_SSL params = Util.parse_query uri.query # If key and certs are not defined and localhost gem is required. # localhost gem will be used for self signed # Load localhost authority if not loaded. # Ruby 3 `values_at` accepts an array, earlier do not if params.values_at(*cert_key).all? { |v| v.to_s.empty? } ctx = localhost_authority && localhost_authority_context end ctx ||= begin # Extract cert_pem and key_pem from options[:store] if present cert_key.each do |v| if params[v]&.start_with?('store:') index = Integer(params.delete(v).split('store:').last) params["#{v}_pem"] = @conf.options[:store][index] end end MiniSSL::ContextBuilder.new(params, @log_writer).context end if fd = @inherited_fds.delete(str) log_writer.log "* Inherited #{str}" io = inherit_ssl_listener fd, ctx elsif sock = @activated_sockets.delete([ :tcp, uri.host, uri.port ]) io = inherit_ssl_listener sock, ctx log_writer.log "* Activated #{str}" else ios_len = @ios.length backlog = params.fetch('backlog', 1024).to_i low_latency = params['low_latency'] != 'false' io = add_ssl_listener uri.host, uri.port, ctx, low_latency, backlog @ios[ios_len..-1].each do |i| addr = loc_addr_str i log_writer.log "* #{log_msg} on ssl://#{addr}?#{uri.query}" end end @listeners << [str, io] if io else log_writer.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| log_writer.log "* Closing unused inherited connection: #{str}" begin IO.for_fd(fd).close 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 # Also close any unused activated sockets unless @activated_sockets.empty? fds = @ios.map(&:to_i) @activated_sockets.each do |key, sock| next if fds.include? sock.to_i log_writer.log "* Closing unused activated socket: #{key.first}://#{key[1..-1].join ':'}" begin sock.close rescue SystemCallError end # We have to unlink a unix socket path that's not being used File.unlink key[1] if key.first == :unix end end end
Source
# File lib/puma/binder.rb, line 464 def redirects_for_restart redirects = @listeners.map { |a| [a[1].to_i, a[1].to_i] }.to_h redirects[:close_others] = true redirects end
Source
# File lib/puma/binder.rb, line 471 def redirects_for_restart_env @listeners.each_with_object({}).with_index do |(listen, memo), i| memo["PUMA_INHERIT_#{i}"] = "#{listen[1].to_i}:#{listen[0]}" end end
@version 5.0.0
Source
# File lib/puma/binder.rb, line 117 def synthesize_binds_from_activated_fs(binds, only_matching) return binds unless activated_sockets.any? activated_binds = [] activated_sockets.keys.each do |proto, addr, port| if port tcp_url = "#{proto}://#{addr}:#{port}" ssl_url = "ssl://#{addr}:#{port}" ssl_url_prefix = "#{ssl_url}?" existing = binds.find { |bind| bind == tcp_url || bind == ssl_url || bind.start_with?(ssl_url_prefix) } activated_binds << (existing || tcp_url) else # TODO: can there be a SSL bind without a port? activated_binds << "#{proto}://#{addr}" end end if only_matching activated_binds else binds | activated_binds end end
Synthesize binds from systemd socket activation
When systemd socket activation is enabled, it can be tedious to keep the binds in sync. This method can synthesize any binds based on the received activated sockets. Any existing matching binds will be respected.
When only_matching is true in, all binds that do not match an activated socket is removed in place.
It’s a noop if no activated sockets were received.
Private Instance Methods
Source
# File lib/puma/binder.rb, line 487 def loc_addr_str(io) loc_addr = io.to_io.local_address if loc_addr.ipv6? "[#{loc_addr.ip_unpack[0]}]:#{loc_addr.ip_unpack[1]}" else loc_addr.ip_unpack.join(':') end end
Source
# File lib/puma/binder.rb, line 480 def loopback_addresses t = Socket.ip_address_list.select do |addrinfo| addrinfo.ipv6_loopback? || addrinfo.ipv4_loopback? end t.map! { |addrinfo| addrinfo.ip_address }; t.uniq!; t end
@!attribute [r] loopback_addresses
Source
# File lib/puma/binder.rb, line 497 def socket_activation_fd(int) int + 3 # 3 is the magic number you add to follow the SA protocol end
@version 5.0.0