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File Name : server.rb

# frozen_string_literal: true

# Released under the MIT License.
# Copyright, 2022-2023, by Samuel Williams.

require 'optparse'
require 'fileutils'

require 'rack/builder'
require 'rack/common_logger'
require 'rack/content_length'
require 'rack/show_exceptions'
require 'rack/lint'
require 'rack/tempfile_reaper'

require 'rack/version'

require_relative 'version'
require_relative 'handler'

module Rackup
  class Server
    class Options
      def parse!(args)
        options = {}
        opt_parser = OptionParser.new("", 24, '  ') do |opts|
          opts.banner = "Usage: rackup [ruby options] [rack options] [rackup config]"

opts.separator ""
          opts.separator "Ruby options:"

lineno = 1
          opts.on("-e", "--eval LINE", "evaluate a LINE of code") { |line|
            eval line, TOPLEVEL_BINDING, "-e", lineno
            lineno += 1
          }

opts.on("-d", "--debug", "set debugging flags (set $DEBUG to true)") {
            options[:debug] = true
          }
          opts.on("-w", "--warn", "turn warnings on for your script") {
            options[:warn] = true
          }
          opts.on("-q", "--quiet", "turn off logging") {
            options[:quiet] = true
          }

opts.on("-I", "--include PATH",
                  "specify $LOAD_PATH (may be used more than once)") { |path|
            (options[:include] ||= []).concat(path.split(":"))
          }

opts.on("-r", "--require LIBRARY",
                  "require the library, before executing your script") { |library|
            (options[:require] ||= []) << library
          }

opts.separator ""
          opts.separator "Rack options:"
          opts.on("-b", "--builder BUILDER_LINE", "evaluate a BUILDER_LINE of code as a builder script") { |line|
            options[:builder] = line
          }

opts.on("-s", "--server SERVER", "serve using SERVER (thin/puma/webrick)") { |s|
            options[:server] = s
          }

opts.on("-o", "--host HOST", "listen on HOST (default: localhost)") { |host|
            options[:Host] = host
          }

opts.on("-p", "--port PORT", "use PORT (default: 9292)") { |port|
            options[:Port] = port
          }

opts.on("-O", "--option NAME[=VALUE]", "pass VALUE to the server as option NAME. If no VALUE, sets it to true. Run '#{$0} -s SERVER -h' to get a list of options for SERVER") { |name|
            name, value = name.split('=', 2)
            value = true if value.nil?
            options[name.to_sym] = value
          }

opts.on("-E", "--env ENVIRONMENT", "use ENVIRONMENT for defaults (default: development)") { |e|
            options[:environment] = e
          }

opts.on("-D", "--daemonize", "run daemonized in the background") { |d|
            options[:daemonize] ||= true
          }

opts.on("--daemonize-noclose", "run daemonized in the background without closing stdout/stderr") {
            options[:daemonize] = :noclose
          }

opts.on("-P", "--pid FILE", "file to store PID") { |f|
            options[:pid] = ::File.expand_path(f)
          }

opts.separator ""
          opts.separator "Profiling options:"

opts.on("--heap HEAPFILE", "Build the application, then dump the heap to HEAPFILE") do |e|
            options[:heapfile] = e
          end

opts.on("--profile PROFILE", "Dump CPU or Memory profile to PROFILE (defaults to a tempfile)") do |e|
            options[:profile_file] = e
          end

opts.on("--profile-mode MODE", "Profile mode (cpu|wall|object)") do |e|
            unless %w[cpu wall object].include?(e)
              raise OptionParser::InvalidOption, "unknown profile mode: #{e}"
            end
            options[:profile_mode] = e.to_sym
          end

opts.separator ""
          opts.separator "Common options:"

opts.on_tail("-h", "-?", "--help", "Show this message") do
            puts opts
            puts handler_opts(options)

exit
          end

opts.on_tail("--version", "Show version") do
            puts "Rack #{Rack::RELEASE}"
            exit
          end
        end

begin
          opt_parser.parse! args
        rescue OptionParser::InvalidOption => e
          warn e.message
          abort opt_parser.to_s
        end

options[:config] = args.last if args.last && !args.last.empty?
        options
      end

def handler_opts(options)
        info = []
        server = Rackup::Handler.get(options[:server]) || Rackup::Handler.default
        if server && server.respond_to?(:valid_options)
          info << ""
          info << "Server-specific options for #{server.name}:"

has_options = false
          server.valid_options.each do |name, description|
            next if /^(Host|Port)[^a-zA-Z]/.match?(name.to_s) # ignore handler's host and port options, we do our own.
            info << sprintf("  -O %-21s %s", name, description)
            has_options = true
          end
          return "" if !has_options
        end
        info.join("\n")
      rescue NameError, LoadError
        return "Warning: Could not find handler specified (#{options[:server] || 'default'}) to determine handler-specific options"
      end
    end

# Start a new rack server (like running rackup). This will parse ARGV and
    # provide standard ARGV rackup options, defaulting to load 'config.ru'.
    #
    # Providing an options hash will prevent ARGV parsing and will not include
    # any default options.
    #
    # This method can be used to very easily launch a CGI application, for
    # example:
    #
    #  Rack::Server.start(
    #    :app => lambda do |e|
    #      [200, {'content-type' => 'text/html'}, ['hello world']]
    #    end,
    #    :server => 'cgi'
    #  )
    #
    # Further options available here are documented on Rack::Server#initialize
    def self.start(options = nil)
      new(options).start
    end

attr_writer :options

# Options may include:
    # * :app
    #     a rack application to run (overrides :config and :builder)
    # * :builder
    #     a string to evaluate a Rack::Builder from
    # * :config
    #     a rackup configuration file path to load (.ru)
    # * :environment
    #     this selects the middleware that will be wrapped around
    #     your application. Default options available are:
    #       - development: CommonLogger, ShowExceptions, and Lint
    #       - deployment: CommonLogger
    #       - none: no extra middleware
    #     note: when the server is a cgi server, CommonLogger is not included.
    # * :server
    #     choose a specific Rackup::Handler, e.g. cgi, fcgi, webrick
    # * :daemonize
    #     if truthy, the server will daemonize itself (fork, detach, etc)
    #     if :noclose, the server will not close STDOUT/STDERR
    # * :pid
    #     path to write a pid file after daemonize
    # * :Host
    #     the host address to bind to (used by supporting Rackup::Handler)
    # * :Port
    #     the port to bind to (used by supporting Rackup::Handler)
    # * :AccessLog
    #     webrick access log options (or supporting Rackup::Handler)
    # * :debug
    #     turn on debug output ($DEBUG = true)
    # * :warn
    #     turn on warnings ($-w = true)
    # * :include
    #     add given paths to $LOAD_PATH
    # * :require
    #     require the given libraries
    #
    # Additional options for profiling app initialization include:
    # * :heapfile
    #     location for ObjectSpace.dump_all to write the output to
    # * :profile_file
    #     location for CPU/Memory (StackProf) profile output (defaults to a tempfile)
    # * :profile_mode
    #     StackProf profile mode (cpu|wall|object)
    def initialize(options = nil)
      @ignore_options = []

if options
        @use_default_options = false
        @options = options
        @app = options[:app] if options[:app]
      else
        @use_default_options = true
        @options = parse_options(ARGV)
      end
    end

def options
      merged_options = @use_default_options ? default_options.merge(@options) : @options
      merged_options.reject { |k, v| @ignore_options.include?(k) }
    end

def default_options
      environment  = ENV['RACK_ENV'] || 'development'
      default_host = environment == 'development' ? 'localhost' : '0.0.0.0'

{
        environment: environment,
        pid: nil,
        Port: 9292,
        Host: default_host,
        AccessLog: [],
        config: "config.ru"
      }
    end

def app
      @app ||= options[:builder] ? build_app_from_string : build_app_and_options_from_config
    end

class << self
      def logging_middleware
        lambda { |server|
          /CGI/.match?(server.server.name) || server.options[:quiet] ? nil : [Rack::CommonLogger, $stderr]
        }
      end

def default_middleware_by_environment
        m = Hash.new {|h, k| h[k] = []}
        m["deployment"] = [
          [Rack::ContentLength],
          logging_middleware,
          [Rack::TempfileReaper]
        ]
        m["development"] = [
          [Rack::ContentLength],
          logging_middleware,
          [Rack::ShowExceptions],
          [Rack::Lint],
          [Rack::TempfileReaper]
        ]

m
      end

def middleware
        default_middleware_by_environment
      end
    end

def middleware
      self.class.middleware
    end

def start(&block)
      if options[:warn]
        $-w = true
      end

if includes = options[:include]
        $LOAD_PATH.unshift(*includes)
      end

Array(options[:require]).each do |library|
        require library
      end

if options[:debug]
        $DEBUG = true
        require 'pp'
        p options[:server]
        pp wrapped_app
        pp app
      end

check_pid! if options[:pid]

# Touch the wrapped app, so that the config.ru is loaded before
      # daemonization (i.e. before chdir, etc).
      handle_profiling(options[:heapfile], options[:profile_mode], options[:profile_file]) do
        wrapped_app
      end

daemonize_app if options[:daemonize]

write_pid if options[:pid]

trap(:INT) do
        if server.respond_to?(:shutdown)
          server.shutdown
        else
          exit
        end
      end

server.run(wrapped_app, **options, &block)
    end

def server
      @_server ||= Handler.get(options[:server]) || Handler.default
    end

private
      def build_app_and_options_from_config
        if !::File.exist? options[:config]
          abort "configuration #{options[:config]} not found"
        end

return Rack::Builder.parse_file(self.options[:config])
      end

def handle_profiling(heapfile, profile_mode, filename)
        if heapfile
          require "objspace"
          ObjectSpace.trace_object_allocations_start
          yield
          GC.start
          ::File.open(heapfile, "w") { |f| ObjectSpace.dump_all(output: f) }
          exit
        end

if profile_mode
          require "stackprof"
          require "tempfile"

make_profile_name(filename) do |filename|
            ::File.open(filename, "w") do |f|
              StackProf.run(mode: profile_mode, out: f) do
                yield
              end
              puts "Profile written to: #{filename}"
            end
          end
          exit
        end

yield
      end

def make_profile_name(filename)
        if filename
          yield filename
        else
          ::Dir::Tmpname.create("profile.dump") do |tmpname, _, _|
            yield tmpname
          end
        end
      end

def build_app_from_string
        Rack::Builder.new_from_string(self.options[:builder])
      end

def parse_options(args)
        # Don't evaluate CGI ISINDEX parameters.
        args.clear if ENV.include?(Rack::REQUEST_METHOD)

@options = opt_parser.parse!(args)
        @options[:config] = ::File.expand_path(options[:config])
        ENV["RACK_ENV"] = options[:environment]
        @options
      end

def opt_parser
        Options.new
      end

def build_app(app)
        middleware[options[:environment]].reverse_each do |middleware|
          middleware = middleware.call(self) if middleware.respond_to?(:call)
          next unless middleware
          klass, *args = middleware
          app = klass.new(app, *args)
        end
        app
      end

def wrapped_app
        @wrapped_app ||= build_app app
      end

def daemonize_app
        # Cannot be covered as it forks
        # :nocov:
        Process.daemon(true, options[:daemonize] == :noclose)
        # :nocov:
      end

def write_pid
        ::File.open(options[:pid], ::File::CREAT | ::File::EXCL | ::File::WRONLY ){ |f| f.write("#{Process.pid}") }
        at_exit { ::FileUtils.rm_f(options[:pid]) }
      rescue Errno::EEXIST
        check_pid!
        retry
      end

def check_pid!
        return unless ::File.exist?(options[:pid])

pid = ::File.read(options[:pid]).to_i
        raise Errno::ESRCH if pid == 0

Process.kill(0, pid)
        exit_with_pid(pid)
      rescue Errno::ESRCH
        ::File.delete(options[:pid])
      rescue Errno::EPERM
        exit_with_pid(pid)
      end

def exit_with_pid(pid)
        $stderr.puts "A server is already running (pid: #{pid}, file: #{options[:pid]})."
        exit(1)
      end
  end

end

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File : BlackDragon /simple/function.php

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2024-03-03 10:47:15
..	dir	-	root/root	0755	2024-03-03 10:47:15
handler	dir	-	root/root	0755	2024-03-03 10:47:15
handler.rb	text/x-ruby	2.81 KB	root/root	0644	2023-09-21 06:26:28
lobster.rb	text/x-ruby	2.19 KB	root/root	0644	2023-09-21 06:26:28
server.rb	text/x-ruby	13.21 KB	root/root	0644	2023-09-21 06:26:28
stream.rb	text/x-ruby	5.13 KB	root/root	0644	2023-09-21 06:26:28
version.rb	text/x-ruby	148 B	root/root	0644	2023-09-21 06:26:28