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Edit File : safe_marshal.rb \| Size : 1.92 KB
# frozen_string_literal: true require "stringio" require_relative "safe_marshal/reader" require_relative "safe_marshal/visitors/to_ruby" module Gem ### # This module is used for safely loading Marshal specs from a gem. The # `safe_load` method defined on this module is specifically designed for # loading Gem specifications. module SafeMarshal PERMITTED_CLASSES = %w[ Date Time Rational Gem::Dependency Gem::NameTuple Gem::Platform Gem::Requirement Gem::Specification Gem::Version Gem::Version::Requirement YAML::Syck::DefaultKey YAML::PrivateType ].freeze private_constant :PERMITTED_CLASSES PERMITTED_SYMBOLS = %w[ development runtime name number platform dependencies ].freeze private_constant :PERMITTED_SYMBOLS PERMITTED_IVARS = { "String" => %w[E encoding @taguri @debug_created_info], "Time" => %w[ offset zone nano_num nano_den submicro @_zone @marshal_with_utc_coercion ], "Gem::Dependency" => %w[ @name @requirement @prerelease @version_requirement @version_requirements @type @force_ruby_platform ], "Gem::NameTuple" => %w[@name @version @platform], "Gem::Platform" => %w[@os @cpu @version], "Psych::PrivateType" => %w[@value @type_id], }.freeze private_constant :PERMITTED_IVARS def self.safe_load(input) load(input, permitted_classes: PERMITTED_CLASSES, permitted_symbols: PERMITTED_SYMBOLS, permitted_ivars: PERMITTED_IVARS) end def self.load(input, permitted_classes: [::Symbol], permitted_symbols: [], permitted_ivars: {}) root = Reader.new(StringIO.new(input, "r").binmode).read! Visitors::ToRuby.new( permitted_classes: permitted_classes, permitted_symbols: permitted_symbols, permitted_ivars: permitted_ivars, ).visit(root) end end end Back

Edit File : safe_marshal.rb | Size : 1.92 KB

# frozen_string_literal: true

require "stringio"

require_relative "safe_marshal/reader"
require_relative "safe_marshal/visitors/to_ruby"

module Gem
  ###
  # This module is used for safely loading Marshal specs from a gem.  The
  # `safe_load` method defined on this module is specifically designed for
  # loading Gem specifications.

module SafeMarshal
    PERMITTED_CLASSES = %w[
      Date
      Time
      Rational

Gem::Dependency
      Gem::NameTuple
      Gem::Platform
      Gem::Requirement
      Gem::Specification
      Gem::Version
      Gem::Version::Requirement

YAML::Syck::DefaultKey
      YAML::PrivateType
    ].freeze
    private_constant :PERMITTED_CLASSES

PERMITTED_SYMBOLS = %w[
      development
      runtime

name
      number
      platform
      dependencies
    ].freeze
    private_constant :PERMITTED_SYMBOLS

PERMITTED_IVARS = {
      "String" => %w[E encoding @taguri @debug_created_info],
      "Time" => %w[
        offset zone nano_num nano_den submicro
        @_zone @marshal_with_utc_coercion
      ],
      "Gem::Dependency" => %w[
        @name @requirement @prerelease @version_requirement @version_requirements @type
        @force_ruby_platform
      ],
      "Gem::NameTuple" => %w[@name @version @platform],
      "Gem::Platform" => %w[@os @cpu @version],
      "Psych::PrivateType" => %w[@value @type_id],
    }.freeze
    private_constant :PERMITTED_IVARS

def self.safe_load(input)
      load(input, permitted_classes: PERMITTED_CLASSES, permitted_symbols: PERMITTED_SYMBOLS, permitted_ivars: PERMITTED_IVARS)
    end

def self.load(input, permitted_classes: [::Symbol], permitted_symbols: [], permitted_ivars: {})
      root = Reader.new(StringIO.new(input, "r").binmode).read!

Visitors::ToRuby.new(
        permitted_classes: permitted_classes,
        permitted_symbols: permitted_symbols,
        permitted_ivars: permitted_ivars,
      ).visit(root)
    end
  end
end

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