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Diffstat (limited to 'lib/webrick/server.rb')
| -rw-r--r-- | lib/webrick/server.rb | 381 |
1 files changed, 0 insertions, 381 deletions
diff --git a/lib/webrick/server.rb b/lib/webrick/server.rb deleted file mode 100644 index fd6b7a61b5..0000000000 --- a/lib/webrick/server.rb +++ /dev/null @@ -1,381 +0,0 @@ -# frozen_string_literal: false -# -# server.rb -- GenericServer Class -# -# Author: IPR -- Internet Programming with Ruby -- writers -# Copyright (c) 2000, 2001 TAKAHASHI Masayoshi, GOTOU Yuuzou -# Copyright (c) 2002 Internet Programming with Ruby writers. All rights -# reserved. -# -# $IPR: server.rb,v 1.62 2003/07/22 19:20:43 gotoyuzo Exp $ - -require 'socket' -require_relative 'config' -require_relative 'log' - -module WEBrick - - ## - # Server error exception - - class ServerError < StandardError; end - - ## - # Base server class - - class SimpleServer - - ## - # A SimpleServer only yields when you start it - - def SimpleServer.start - yield - end - end - - ## - # A generic module for daemonizing a process - - class Daemon - - ## - # Performs the standard operations for daemonizing a process. Runs a - # block, if given. - - def Daemon.start - Process.daemon - File.umask(0) - yield if block_given? - end - end - - ## - # Base TCP server class. You must subclass GenericServer and provide a #run - # method. - - class GenericServer - - ## - # The server status. One of :Stop, :Running or :Shutdown - - attr_reader :status - - ## - # The server configuration - - attr_reader :config - - ## - # The server logger. This is independent from the HTTP access log. - - attr_reader :logger - - ## - # Tokens control the number of outstanding clients. The - # <code>:MaxClients</code> configuration sets this. - - attr_reader :tokens - - ## - # Sockets listening for connections. - - attr_reader :listeners - - ## - # Creates a new generic server from +config+. The default configuration - # comes from +default+. - - def initialize(config={}, default=Config::General) - @config = default.dup.update(config) - @status = :Stop - @config[:Logger] ||= Log::new - @logger = @config[:Logger] - - @tokens = Thread::SizedQueue.new(@config[:MaxClients]) - @config[:MaxClients].times{ @tokens.push(nil) } - - webrickv = WEBrick::VERSION - rubyv = "#{RUBY_VERSION} (#{RUBY_RELEASE_DATE}) [#{RUBY_PLATFORM}]" - @logger.info("WEBrick #{webrickv}") - @logger.info("ruby #{rubyv}") - - @listeners = [] - @shutdown_pipe = nil - unless @config[:DoNotListen] - raise ArgumentError, "Port must an integer" unless @config[:Port].to_s == @config[:Port].to_i.to_s - - @config[:Port] = @config[:Port].to_i - if @config[:Listen] - warn(":Listen option is deprecated; use GenericServer#listen", uplevel: 1) - end - listen(@config[:BindAddress], @config[:Port]) - if @config[:Port] == 0 - @config[:Port] = @listeners[0].addr[1] - end - end - end - - ## - # Retrieves +key+ from the configuration - - def [](key) - @config[key] - end - - ## - # Adds listeners from +address+ and +port+ to the server. See - # WEBrick::Utils::create_listeners for details. - - def listen(address, port) - @listeners += Utils::create_listeners(address, port) - end - - ## - # Starts the server and runs the +block+ for each connection. This method - # does not return until the server is stopped from a signal handler or - # another thread using #stop or #shutdown. - # - # If the block raises a subclass of StandardError the exception is logged - # and ignored. If an IOError or Errno::EBADF exception is raised the - # exception is ignored. If an Exception subclass is raised the exception - # is logged and re-raised which stops the server. - # - # To completely shut down a server call #shutdown from ensure: - # - # server = WEBrick::GenericServer.new - # # or WEBrick::HTTPServer.new - # - # begin - # server.start - # ensure - # server.shutdown - # end - - def start(&block) - raise ServerError, "already started." if @status != :Stop - server_type = @config[:ServerType] || SimpleServer - - setup_shutdown_pipe - - server_type.start{ - @logger.info \ - "#{self.class}#start: pid=#{$$} port=#{@config[:Port]}" - @status = :Running - call_callback(:StartCallback) - - shutdown_pipe = @shutdown_pipe - - thgroup = ThreadGroup.new - begin - while @status == :Running - begin - sp = shutdown_pipe[0] - if svrs = IO.select([sp, *@listeners]) - if svrs[0].include? sp - # swallow shutdown pipe - buf = String.new - nil while String === - sp.read_nonblock([sp.nread, 8].max, buf, exception: false) - break - end - svrs[0].each{|svr| - @tokens.pop # blocks while no token is there. - if sock = accept_client(svr) - unless config[:DoNotReverseLookup].nil? - sock.do_not_reverse_lookup = !!config[:DoNotReverseLookup] - end - th = start_thread(sock, &block) - th[:WEBrickThread] = true - thgroup.add(th) - else - @tokens.push(nil) - end - } - end - rescue Errno::EBADF, Errno::ENOTSOCK, IOError => ex - # if the listening socket was closed in GenericServer#shutdown, - # IO::select raise it. - rescue StandardError => ex - msg = "#{ex.class}: #{ex.message}\n\t#{ex.backtrace[0]}" - @logger.error msg - rescue Exception => ex - @logger.fatal ex - raise - end - end - ensure - cleanup_shutdown_pipe(shutdown_pipe) - cleanup_listener - @status = :Shutdown - @logger.info "going to shutdown ..." - thgroup.list.each{|th| th.join if th[:WEBrickThread] } - call_callback(:StopCallback) - @logger.info "#{self.class}#start done." - @status = :Stop - end - } - end - - ## - # Stops the server from accepting new connections. - - def stop - if @status == :Running - @status = :Shutdown - end - - alarm_shutdown_pipe {|f| f.write_nonblock("\0")} - end - - ## - # Shuts down the server and all listening sockets. New listeners must be - # provided to restart the server. - - def shutdown - stop - - alarm_shutdown_pipe(&:close) - end - - ## - # You must subclass GenericServer and implement \#run which accepts a TCP - # client socket - - def run(sock) - @logger.fatal "run() must be provided by user." - end - - private - - # :stopdoc: - - ## - # Accepts a TCP client socket from the TCP server socket +svr+ and returns - # the client socket. - - def accept_client(svr) - case sock = svr.to_io.accept_nonblock(exception: false) - when :wait_readable - nil - else - if svr.respond_to?(:start_immediately) - sock = OpenSSL::SSL::SSLSocket.new(sock, ssl_context) - sock.sync_close = true - # we cannot do OpenSSL::SSL::SSLSocket#accept here because - # a slow client can prevent us from accepting connections - # from other clients - end - sock - end - rescue Errno::ECONNRESET, Errno::ECONNABORTED, - Errno::EPROTO, Errno::EINVAL - nil - rescue StandardError => ex - msg = "#{ex.class}: #{ex.message}\n\t#{ex.backtrace[0]}" - @logger.error msg - nil - end - - ## - # Starts a server thread for the client socket +sock+ that runs the given - # +block+. - # - # Sets the socket to the <code>:WEBrickSocket</code> thread local variable - # in the thread. - # - # If any errors occur in the block they are logged and handled. - - def start_thread(sock, &block) - Thread.start{ - begin - Thread.current[:WEBrickSocket] = sock - begin - addr = sock.peeraddr - @logger.debug "accept: #{addr[3]}:#{addr[1]}" - rescue SocketError - @logger.debug "accept: <address unknown>" - raise - end - if sock.respond_to?(:sync_close=) && @config[:SSLStartImmediately] - WEBrick::Utils.timeout(@config[:RequestTimeout]) do - begin - sock.accept # OpenSSL::SSL::SSLSocket#accept - rescue Errno::ECONNRESET, Errno::ECONNABORTED, - Errno::EPROTO, Errno::EINVAL - Thread.exit - end - end - end - call_callback(:AcceptCallback, sock) - block ? block.call(sock) : run(sock) - rescue Errno::ENOTCONN - @logger.debug "Errno::ENOTCONN raised" - rescue ServerError => ex - msg = "#{ex.class}: #{ex.message}\n\t#{ex.backtrace[0]}" - @logger.error msg - rescue Exception => ex - @logger.error ex - ensure - @tokens.push(nil) - Thread.current[:WEBrickSocket] = nil - if addr - @logger.debug "close: #{addr[3]}:#{addr[1]}" - else - @logger.debug "close: <address unknown>" - end - sock.close - end - } - end - - ## - # Calls the callback +callback_name+ from the configuration with +args+ - - def call_callback(callback_name, *args) - @config[callback_name]&.call(*args) - end - - def setup_shutdown_pipe - return @shutdown_pipe ||= IO.pipe - end - - def cleanup_shutdown_pipe(shutdown_pipe) - @shutdown_pipe = nil - shutdown_pipe&.each(&:close) - end - - def alarm_shutdown_pipe - _, pipe = @shutdown_pipe # another thread may modify @shutdown_pipe. - if pipe - if !pipe.closed? - begin - yield pipe - rescue IOError # closed by another thread. - end - end - end - end - - def cleanup_listener - @listeners.each{|s| - if @logger.debug? - addr = s.addr - @logger.debug("close TCPSocket(#{addr[2]}, #{addr[1]})") - end - begin - s.shutdown - rescue Errno::ENOTCONN - # when `Errno::ENOTCONN: Socket is not connected' on some platforms, - # call #close instead of #shutdown. - # (ignore @config[:ShutdownSocketWithoutClose]) - s.close - else - unless @config[:ShutdownSocketWithoutClose] - s.close - end - end - } - @listeners.clear - end - end # end of GenericServer -end |