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Name	Size	Permission
commands	[ DIR ]	drwxr-xr-x
core_ext	[ DIR ]	drwxr-xr-x
ext	[ DIR ]	drwxr-xr-x
package	[ DIR ]	drwxr-xr-x
request_set	[ DIR ]	drwxr-xr-x
resolver	[ DIR ]	drwxr-xr-x
security	[ DIR ]	drwxr-xr-x
source	[ DIR ]	drwxr-xr-x
ssl_certs	[ DIR ]	drwxr-xr-x
util	[ DIR ]	drwxr-xr-x
available_set.rb	3 KB	-rw-r--r--
basic_specification.rb	5.65 KB	-rw-r--r--
command.rb	13.43 KB	-rw-r--r--
command_manager.rb	4.62 KB	-rw-r--r--
compatibility.rb	1.67 KB	-rw-r--r--
config_file.rb	12.23 KB	-rw-r--r--
defaults.rb	3.64 KB	-rw-r--r--
dependency.rb	7.77 KB	-rw-r--r--
dependency_installer.rb	12.64 KB	-rw-r--r--
dependency_list.rb	5.53 KB	-rw-r--r--
deprecate.rb	1.7 KB	-rw-r--r--
doctor.rb	3.04 KB	-rw-r--r--
errors.rb	2.42 KB	-rw-r--r--
exceptions.rb	5.87 KB	-rw-r--r--
ext.rb	431 B	-rw-r--r--
gem_runner.rb	1.96 KB	-rw-r--r--
gemcutter_utilities.rb	3.97 KB	-rw-r--r--
indexer.rb	13.03 KB	-rw-r--r--
install_default_message.rb	307 B	-rw-r--r--
install_message.rb	281 B	-rw-r--r--
install_update_options.rb	5.21 KB	-rw-r--r--
installer.rb	21.42 KB	-rw-r--r--
installer_test_case.rb	4.19 KB	-rw-r--r--
local_remote_options.rb	3.36 KB	-rw-r--r--
mock_gem_ui.rb	1.35 KB	-rw-r--r--
name_tuple.rb	2.23 KB	-rw-r--r--
package.rb	14.25 KB	-rw-r--r--
package_task.rb	3.77 KB	-rw-r--r--
path_support.rb	1.82 KB	-rw-r--r--
platform.rb	6.05 KB	-rw-r--r--
psych_additions.rb	269 B	-rw-r--r--
psych_tree.rb	763 B	-rw-r--r--
rdoc.rb	7.75 KB	-rw-r--r--
remote_fetcher.rb	9.46 KB	-rw-r--r--
request.rb	7.53 KB	-rw-r--r--
request_set.rb	6.94 KB	-rw-r--r--
requirement.rb	6.1 KB	-rw-r--r--
resolver.rb	12.46 KB	-rw-r--r--
safe_yaml.rb	1.11 KB	-rw-r--r--
security.rb	20.96 KB	-rw-r--r--
server.rb	21.69 KB	-rw-r--r--
source.rb	4.9 KB	-rw-r--r--
source_list.rb	2.47 KB	-rw-r--r--
source_local.rb	111 B	-rw-r--r--
source_specific_file.rb	93 B	-rw-r--r--
spec_fetcher.rb	6.4 KB	-rw-r--r--
specification.rb	70.8 KB	-rw-r--r--
stub_specification.rb	3.1 KB	-rw-r--r--
syck_hack.rb	2.09 KB	-rw-r--r--
test_case.rb	35.62 KB	-rw-r--r--
test_utilities.rb	8.37 KB	-rw-r--r--
text.rb	1.23 KB	-rw-r--r--
uninstaller.rb	8.69 KB	-rw-r--r--
uri_formatter.rb	762 B	-rw-r--r--
user_interaction.rb	14.4 KB	-rw-r--r--
util.rb	2.26 KB	-rw-r--r--
validator.rb	4.18 KB	-rw-r--r--
version.rb	10.78 KB	-rw-r--r--
version_option.rb	1.83 KB	-rw-r--r--

Code Editor : validator.rb

#--
# 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 # :nodoc:
    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

##
  # Describes a problem with a file in a gem.

ErrorData = Struct.new :path, :problem do
    def <=> other # :nodoc:
      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?
      next if spec.default_gem?

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

${this.title}

Code Editor : validator.rb