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Name	Size	Permission	Date
commands	[ DIR ]	drwxr-xr-x	2024-03-03 22:43
core_ext	[ DIR ]	drwxr-xr-x	2024-03-03 22:43
ext	[ DIR ]	drwxr-xr-x	2024-03-03 22:43
package	[ DIR ]	drwxr-xr-x	2024-03-03 22:43
security	[ DIR ]	drwxr-xr-x	2024-03-03 22:43
ssl_certs	[ DIR ]	drwxr-xr-x	2024-03-03 22:43
available_set.rb	1.56 KB	-rw-r--r--	2013-03-17 14:51
command.rb	13.43 KB	-rw-r--r--	2012-11-30 16:27
command_manager.rb	5.27 KB	-rw-r--r--	2012-12-06 05:26
compatibility.rb	1.58 KB	-rw-r--r--	2013-02-05 21:06
config_file.rb	11.82 KB	-rw-r--r--	2023-07-26 14:06
defaults.rb	2.76 KB	-rw-r--r--	2013-07-22 16:33
dependency.rb	7.74 KB	-rw-r--r--	2012-12-23 00:35
dependency_installer.rb	12.36 KB	-rw-r--r--	2013-11-13 02:59
dependency_list.rb	5.53 KB	-rw-r--r--	2013-03-17 14:51
dependency_resolver.rb	14.97 KB	-rw-r--r--	2013-07-22 16:33
deprecate.rb	1.73 KB	-rw-r--r--	2012-11-29 06:52
doctor.rb	2.86 KB	-rw-r--r--	2013-01-04 07:31
errors.rb	2.14 KB	-rw-r--r--	2013-07-22 16:33
exceptions.rb	2.7 KB	-rw-r--r--	2012-11-29 06:52
ext.rb	416 B	-rw-r--r--	2012-12-10 00:40
gem_runner.rb	1.98 KB	-rw-r--r--	2012-11-29 06:52
gemcutter_utilities.rb	2.84 KB	-rw-r--r--	2013-09-15 14:23
indexer.rb	12.89 KB	-rw-r--r--	2012-12-06 05:26
install_message.rb	281 B	-rw-r--r--	2012-11-29 06:52
install_update_options.rb	5.09 KB	-rw-r--r--	2012-11-29 06:52
installer.rb	22.19 KB	-rw-r--r--	2013-08-16 15:35
installer_test_case.rb	4.28 KB	-rw-r--r--	2012-11-29 06:52
local_remote_options.rb	3.36 KB	-rw-r--r--	2011-07-27 01:40
mock_gem_ui.rb	1.35 KB	-rw-r--r--	2012-11-29 06:52
name_tuple.rb	1.96 KB	-rw-r--r--	2012-11-29 06:52
package.rb	13.22 KB	-rw-r--r--	2023-07-26 14:06
package_task.rb	3.77 KB	-rw-r--r--	2013-08-16 15:35
path_support.rb	1.58 KB	-rw-r--r--	2012-11-30 00:23
platform.rb	5.63 KB	-rw-r--r--	2013-07-22 16:33
psych_additions.rb	249 B	-rw-r--r--	2013-07-25 15:42
psych_tree.rb	763 B	-rw-r--r--	2013-07-22 16:33
rdoc.rb	7.75 KB	-rw-r--r--	2013-03-17 14:51
remote_fetcher.rb	15.99 KB	-rw-r--r--	2015-08-18 13:01
request_set.rb	3.67 KB	-rw-r--r--	2012-11-29 06:52
requirement.rb	6.02 KB	-rw-r--r--	2012-11-30 16:27
safe_yaml.rb	1.11 KB	-rw-r--r--	2023-07-26 14:06
security.rb	20.56 KB	-rw-r--r--	2013-03-17 15:01
server.rb	21.69 KB	-rw-r--r--	2013-10-26 17:44
source.rb	3.12 KB	-rw-r--r--	2013-10-26 17:44
source_list.rb	1.22 KB	-rw-r--r--	2012-11-29 06:52
source_local.rb	1.88 KB	-rw-r--r--	2012-11-29 06:52
source_specific_file.rb	552 B	-rw-r--r--	2012-11-29 06:52
spec_fetcher.rb	5.17 KB	-rw-r--r--	2013-10-26 17:44
specification.rb	66.9 KB	-rw-r--r--	2023-07-26 14:06
syck_hack.rb	2.07 KB	-rw-r--r--	2012-11-29 06:52
test_case.rb	28.09 KB	-rw-r--r--	2013-07-25 15:42
test_utilities.rb	4.03 KB	-rw-r--r--	2013-03-17 15:07
text.rb	1.23 KB	-rw-r--r--	2011-07-27 01:40
uninstaller.rb	8.29 KB	-rw-r--r--	2012-12-19 07:19
user_interaction.rb	11.44 KB	-rw-r--r--	2012-11-29 06:52
validator.rb	4.08 KB	-rw-r--r--	2012-12-23 00:35
version.rb	10.5 KB	-rw-r--r--	2013-10-26 17:44
version_option.rb	1.59 KB	-rw-r--r--	2011-07-27 01:40

Rename

#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++

require 'rubygems/package'
require 'rubygems/installer'

##
# Validator performs various gem file and gem database validation

class Gem::Validator

include Gem::UserInteraction

def initialize
    require 'find'
  end

##
  # Given a gem file's contents, validates against its own MD5 checksum
  # gem_data:: [String] Contents of the gem file

def verify_gem(gem_data)
    # TODO remove me? The code here only validate an MD5SUM that was
    # in some old formatted gems, but hasn't been for a long time.
  end

##
  # Given the path to a gem file, validates against its own MD5 checksum
  #
  # gem_path:: [String] Path to gem file

def verify_gem_file(gem_path)
    open gem_path, Gem.binary_mode do |file|
      gem_data = file.read
      verify_gem gem_data
    end
  rescue Errno::ENOENT, Errno::EINVAL
    raise Gem::VerificationError, "missing gem file #{gem_path}"
  end

private

def find_files_for_gem(gem_directory)
    installed_files = []

Find.find gem_directory do |file_name|
      fn = file_name[gem_directory.size..file_name.size-1].sub(/^\//, "")
      installed_files << fn unless
        fn =~ /CVS/ || fn.empty? || File.directory?(file_name)
    end

installed_files
  end

public

ErrorData = Struct.new :path, :problem do
    def <=> other
      return nil unless self.class === other

[path, problem] <=> [other.path, other.problem]
    end
  end

##
  # Checks the gem directory for the following potential
  # inconsistencies/problems:
  #
  # * Checksum gem itself
  # * For each file in each gem, check consistency of installed versions
  # * Check for files that aren't part of the gem but are in the gems directory
  # * 1 cache - 1 spec - 1 directory.
  #
  # returns a hash of ErrorData objects, keyed on the problem gem's name.
  #--
  # TODO needs further cleanup

def alien(gems=[])
    errors = Hash.new { |h,k| h[k] = {} }

Gem::Specification.each do |spec|
      next unless gems.include? spec.name unless gems.empty?

gem_name      = spec.file_name
      gem_path      = spec.cache_file
      spec_path     = spec.spec_file
      gem_directory = spec.full_gem_path

unless File.directory? gem_directory then
        errors[gem_name][spec.full_name] =
          "Gem registered but doesn't exist at #{gem_directory}"
        next
      end

unless File.exist? spec_path then
        errors[gem_name][spec_path] = "Spec file missing for installed gem"
      end

begin
        verify_gem_file(gem_path)

good, gone, unreadable = nil, nil, nil, nil

open gem_path, Gem.binary_mode do |file|
          package = Gem::Package.new gem_path

good, gone = package.contents.partition { |file_name|
            File.exist? File.join(gem_directory, file_name)
          }

gone.sort.each do |path|
            errors[gem_name][path] = "Missing file"
          end

good, unreadable = good.partition { |file_name|
            File.readable? File.join(gem_directory, file_name)
          }

unreadable.sort.each do |path|
            errors[gem_name][path] = "Unreadable file"
          end

good.each do |entry, data|
            begin
              next unless data # HACK `gem check -a mkrf`

source = File.join gem_directory, entry['path']

open source, Gem.binary_mode do |f|
                unless f.read == data then
                  errors[gem_name][entry['path']] = "Modified from original"
                end
              end
            end
          end
        end

installed_files = find_files_for_gem(gem_directory)
        extras = installed_files - good - unreadable

extras.each do |extra|
          errors[gem_name][extra] = "Extra file"
        end
      rescue Gem::VerificationError => e
        errors[gem_name][gem_path] = e.message
      end
    end

errors.each do |name, subhash|
      errors[name] = subhash.map do |path, msg|
        ErrorData.new path, msg
      end.sort
    end

errors
  end
end