metasploit-framework/lib/metasploit/framework/spec/constants.rb

101 lines
3.0 KiB
Ruby

require 'msf/core/modules'
# Monitor constants created by module loading to ensure that the loads in one example don't interfere with the
# assertions in another example.
module Metasploit::Framework::Spec::Constants
extend ActiveSupport::Autoload
autoload :Each
autoload :Suite
#
# CONSTANTS
#
# Regex parsing loaded module constants
LOADED_MODULE_CHILD_CONSTANT_REGEXP = /^Mod(?<unpacked_full_name>[0-9a-f]+)$/
# The parent namespace child_constant_name that can have children added when loading modules.
PARENT_CONSTANT = Msf::Modules
# Constant names under {PARENT_CONSTANT} that can persist between specs because they are part of the loader library
# and not dynamically loaded code
PERSISTENT_CHILD_CONSTANT_NAMES = %w{
Error
External
Loader
MetasploitClassCompatibilityError
Namespace
VersionCompatibilityError
}.map(&:to_sym)
# Cleans child constants from {PARENT_CONSTANT}.
#
# @return [true] if there were leaked constants that were cleaned.
# @return [false] if there were no leaked constants.
# @see each
def self.clean
count = each do |child_name|
PARENT_CONSTANT.send(:remove_const, child_name)
end
count != 0
end
# Adds actions to `spec` task so that `rake spec` fails if any of the following:
#
# # `log/leaked-constants.log` exists after printing out the leaked constants.
# # Each.configured! is unnecessary in `spec/spec_helper.rb` and should be removed.
#
# @return [void]
def self.define_task
Suite.define_task
# After Suite as Suite will kill for leaks before Each say it cleaned no leaks in case there are leaks in an
# `after(:all)` that {Each} won't catch in its `after(:each)` checks.
Each.define_task
end
# Yields each child_constant_name under {PARENT_CONSTANT}.
#
# @yield [child_name]
# @yieldparam child_name [Symbol] name of child_constant_name relative to {PARENT_CONSTANT}.
# @yieldreturn [void]
# @return [Integer] count
def self.each
inherit = false
count = 0
child_constant_names = PARENT_CONSTANT.constants(inherit)
child_constant_names.each do |child_constant_name|
unless PERSISTENT_CHILD_CONSTANT_NAMES.include? child_constant_name
count += 1
yield child_constant_name
end
end
count
end
# The module full name for `child_constant_name`
#
# @param child_constant_name [String] the name of a child constant_name under {PARENT_CONSTANT}.
# @return [String] full module name used to load `child_constant_name`.
# @return [nil] if `child_constant_name` does not correspond to a loaded module.
def self.full_name(child_constant_name)
full_name = nil
match = LOADED_MODULE_CHILD_CONSTANT_REGEXP.match(child_constant_name)
if match
potential_full_name = [match[:unpacked_full_name]].pack('H*')
module_type, _reference_name = potential_full_name.split('/', 2)
if Msf::MODULE_TYPES.include? module_type
full_name = potential_full_name
end
end
full_name
end
end