Module: YAML

Defined in:
lib/safe_yaml/syck_hack.rb,
lib/safe_yaml.rb

Overview

Hack to JRuby 1.8’s YAML Parser Yecht

This file is always loaded AFTER either syck or psych are already loaded. It then looks at what constants are available and creates a consistent view on all rubys.

Taken from rubygems and modified. See github.com/rubygems/rubygems/blob/master/lib/rubygems/syck_hack.rb

Constant Summary collapse

Syck =

JRuby’s “Syck” is called “Yecht”

YAML::Yecht

Class Method Summary collapse

Class Method Details

.load_file_with_options(file, options = {}) ⇒ Object Also known as: load_file 



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# File 'lib/safe_yaml.rb', line 148

def self.load_file_with_options(file, options={})
  safe_mode = safe_mode_from_options("load_file", options)
  if safe_mode == :safe
    safe_load_file(file, options_for_safe_load(options))
  else
    unsafe_load_file(file)
  end
end

.load_with_options(yaml, *original_arguments) ⇒ Object Also known as: load 



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# File 'lib/safe_yaml.rb', line 133

def self.load_with_options(yaml, *original_arguments)
  filename, options = filename_and_options_from_arguments(original_arguments)
  safe_mode = safe_mode_from_options("load", options)
  arguments = [yaml]

  if safe_mode == :safe
    arguments << filename if SafeYAML::YAML_ENGINE == "psych"
    arguments << options_for_safe_load(options)
    safe_load(*arguments)
  else
    arguments << filename if SafeYAML::MULTI_ARGUMENT_YAML_LOAD
    unsafe_load(*arguments)
  end
end

.safe_load(yaml, options = {}) ⇒ Object 



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# File 'lib/safe_yaml.rb', line 162

def self.safe_load(yaml, filename=nil, options={})
  return false if yaml =~ /\A\s*\Z/

  # If the user hasn't whitelisted any tags, we can go with this implementation which is
  # significantly faster.
  if (options && options[:whitelisted_tags] || SafeYAML::OPTIONS[:whitelisted_tags]).empty?
    safe_handler = SafeYAML::PsychHandler.new(options) do |result|
      return result
    end
    arguments_for_parse = [yaml]
    arguments_for_parse << filename if SafeYAML::MULTI_ARGUMENT_YAML_LOAD
    Psych::Parser.new(safe_handler).parse(*arguments_for_parse)

  else
    safe_resolver = SafeYAML::PsychResolver.new(options)
    tree = SafeYAML::MULTI_ARGUMENT_YAML_LOAD ?
      Psych.parse(yaml, filename) :
      Psych.parse(yaml)
    return safe_resolver.resolve_node(tree)
  end
end

.safe_load_file(filename, options = {}) ⇒ Object 



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# File 'lib/safe_yaml.rb', line 184

def self.safe_load_file(filename, options={})
  File.open(filename, 'r:bom|utf-8') { |f| self.safe_load(f, filename, options) }
end

.unsafe_load_file(filename) ⇒ Object 



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# File 'lib/safe_yaml.rb', line 188

def self.unsafe_load_file(filename)
  if SafeYAML::MULTI_ARGUMENT_YAML_LOAD
    # https://github.com/tenderlove/psych/blob/v1.3.2/lib/psych.rb#L296-298
    File.open(filename, 'r:bom|utf-8') { |f| self.unsafe_load(f, filename) }
  else
    # https://github.com/tenderlove/psych/blob/v1.2.2/lib/psych.rb#L231-233
    self.unsafe_load File.open(filename)
  end
end