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|
# frozen_string_literal: true
require "yaml"
module ActiveRecord
module Coders # :nodoc:
class YAMLColumn < ColumnSerializer # :nodoc:
class SafeCoder
def initialize(permitted_classes: [], unsafe_load: nil)
@permitted_classes = permitted_classes
@unsafe_load = unsafe_load
end
if Gem::Version.new(Psych::VERSION) >= Gem::Version.new("5.1")
def dump(object)
if @unsafe_load.nil? ? ActiveRecord.use_yaml_unsafe_load : @unsafe_load
::YAML.dump(object)
else
::YAML.safe_dump(
object,
permitted_classes: @permitted_classes + ActiveRecord.yaml_column_permitted_classes,
aliases: true,
)
end
end
else
def dump(object)
YAML.dump(object)
end
end
if YAML.respond_to?(:unsafe_load)
def load(payload)
if @unsafe_load.nil? ? ActiveRecord.use_yaml_unsafe_load : @unsafe_load
YAML.unsafe_load(payload)
else
YAML.safe_load(
payload,
permitted_classes: @permitted_classes + ActiveRecord.yaml_column_permitted_classes,
aliases: true,
)
end
end
else
def load(payload)
if @unsafe_load.nil? ? ActiveRecord.use_yaml_unsafe_load : @unsafe_load
YAML.load(payload)
else
YAML.safe_load(
payload,
permitted_classes: @permitted_classes + ActiveRecord.yaml_column_permitted_classes,
aliases: true,
)
end
end
end
end
def initialize(attr_name, object_class = Object, permitted_classes: [], unsafe_load: nil)
super(
attr_name,
SafeCoder.new(permitted_classes: permitted_classes || [], unsafe_load: unsafe_load),
object_class,
)
check_arity_of_constructor
end
def init_with(coder) # :nodoc:
unless coder["coder"]
permitted_classes = coder["permitted_classes"] || []
unsafe_load = coder["unsafe_load"] || false
coder["coder"] = SafeCoder.new(permitted_classes: permitted_classes, unsafe_load: unsafe_load)
end
super(coder)
end
def coder
# This is to retain forward compatibility when loading records serialized with Marshal
# from a previous version of Rails.
@coder ||= begin
permitted_classes = defined?(@permitted_classes) ? @permitted_classes : []
unsafe_load = defined?(@unsafe_load) && @unsafe_load.nil?
SafeCoder.new(permitted_classes: permitted_classes, unsafe_load: unsafe_load)
end
end
private
def check_arity_of_constructor
load(nil)
rescue ArgumentError
raise ArgumentError, "Cannot serialize #{object_class}. Classes passed to `serialize` must have a 0 argument constructor."
end
end
end
end
|
