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ruby--ruby/test/psych/test_serialize_subclasses.rb
Aaron Patterson c7c2ad5749
[ruby/psych] Introduce Psych.unsafe_load
In future versions of Psych, the `load` method will be mostly the same
as the `safe_load` method.  In other words, the `load` method won't
allow arbitrary object deserialization (which can be used to escalate to
an RCE).  People that need to load *trusted* documents can use the
`unsafe_load` method.

This commit introduces the `unsafe_load` method so that people can
incrementally upgrade.  For example, if they try to upgrade to 4.0.0 and
something breaks, they can downgrade, audit callsites, change to
`safe_load` or `unsafe_load` as required, and then upgrade to 4.0.0
smoothly.

https://github.com/ruby/psych/commit/cb50aa8d3f
2021-05-17 11:20:45 +09:00

39 lines
850 B
Ruby

# frozen_string_literal: true
require_relative 'helper'
module Psych
class TestSerializeSubclasses < TestCase
class SomeObject
def initialize one, two
@one = one
@two = two
end
def == other
@one == other.instance_eval { @one } &&
@two == other.instance_eval { @two }
end
end
def test_some_object
so = SomeObject.new('foo', [1,2,3])
assert_equal so, Psych.unsafe_load(Psych.dump(so))
end
class StructSubclass < Struct.new(:foo)
def initialize foo, bar
super(foo)
@bar = bar
end
def == other
super(other) && @bar == other.instance_eval{ @bar }
end
end
def test_struct_subclass
so = StructSubclass.new('foo', [1,2,3])
assert_equal so, Psych.unsafe_load(Psych.dump(so))
end
end
end