2016-02-01 19:11:34 -05:00
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# frozen_string_literal: true
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2007-11-10 02:48:56 -05:00
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#--
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2010-04-22 04:24:42 -04:00
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# Copyright (C) 2004 Mauricio Julio Fernández Pradier
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# See LICENSE.txt for additional licensing information.
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#++
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2012-11-29 01:52:18 -05:00
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#
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# Example using a Gem::Package
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#
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# Builds a .gem file given a Gem::Specification. A .gem file is a tarball
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2020-01-31 21:14:04 -05:00
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# which contains a data.tar.gz, metadata.gz, checksums.yaml.gz and possibly
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# signatures.
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2012-11-29 01:52:18 -05:00
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#
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# require 'rubygems'
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# require 'rubygems/package'
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#
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# spec = Gem::Specification.new do |s|
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# s.summary = "Ruby based make-like utility."
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# s.name = 'rake'
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# s.version = PKG_VERSION
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# s.requirements << 'none'
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# s.files = PKG_FILES
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# s.description = <<-EOF
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# Rake is a Make-like program implemented in Ruby. Tasks
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# and dependencies are specified in standard Ruby syntax.
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# EOF
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# end
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#
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# Gem::Package.build spec
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#
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# Reads a .gem file.
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#
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# require 'rubygems'
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# require 'rubygems/package'
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#
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# the_gem = Gem::Package.new(path_to_dot_gem)
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# the_gem.contents # get the files in the gem
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# the_gem.extract_files destination_directory # extract the gem into a directory
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# the_gem.spec # get the spec out of the gem
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# the_gem.verify # check the gem is OK (contains valid gem specification, contains a not corrupt contents archive)
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#
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2013-09-14 04:59:02 -04:00
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# #files are the files in the .gem tar file, not the Ruby files in the gem
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2012-11-29 01:52:18 -05:00
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# #extract_files and #contents automatically call #verify
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2007-11-10 02:48:56 -05:00
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2019-04-22 07:56:16 -04:00
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require_relative "../rubygems"
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require_relative 'security'
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require_relative 'user_interaction'
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2007-11-10 02:48:56 -05:00
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2012-11-29 01:52:18 -05:00
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class Gem::Package
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include Gem::UserInteraction
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class Error < Gem::Exception; end
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2007-11-10 02:48:56 -05:00
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2011-01-31 22:11:34 -05:00
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class FormatError < Error
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attr_reader :path
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2018-11-21 05:20:47 -05:00
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def initialize(message, source = nil)
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2014-09-13 23:30:02 -04:00
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if source
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@path = source.path
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2011-01-31 22:11:34 -05:00
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2016-02-01 07:43:26 -05:00
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message = message + " in #{path}" if path
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2014-09-13 23:30:02 -04:00
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end
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2011-01-31 22:11:34 -05:00
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super message
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end
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end
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2012-11-29 01:52:18 -05:00
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class PathError < Error
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2018-11-21 05:20:47 -05:00
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def initialize(destination, destination_dir)
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2012-11-29 01:52:18 -05:00
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super "installing into parent path %s of %s is not allowed" %
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[destination, destination_dir]
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end
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end
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2021-10-06 12:17:37 -04:00
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class SymlinkError < Error
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def initialize(name, destination, destination_dir)
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super "installing symlink '%s' pointing to parent path %s of %s is not allowed" %
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[name, destination, destination_dir]
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end
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end
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2012-11-29 01:52:18 -05:00
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class NonSeekableIO < Error; end
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class TooLongFileName < Error; end
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2011-01-31 22:11:34 -05:00
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##
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# Raised when a tar file is corrupt
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class TarInvalidError < Error; end
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2007-11-10 02:48:56 -05:00
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2012-11-29 01:52:18 -05:00
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attr_accessor :build_time # :nodoc:
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##
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# Checksums for the contents of the package
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attr_reader :checksums
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##
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# The files in this package. This is not the contents of the gem, just the
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# files in the top-level container.
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attr_reader :files
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2019-07-11 09:20:43 -04:00
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##
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# Reference to the gem being packaged.
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attr_reader :gem
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2012-11-29 01:52:18 -05:00
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##
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# The security policy used for verifying the contents of this package.
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attr_accessor :security_policy
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##
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# Sets the Gem::Specification to use to build this package.
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attr_writer :spec
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2018-05-30 09:01:35 -04:00
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##
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# Permission for directories
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attr_accessor :dir_mode
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##
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# Permission for program files
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attr_accessor :prog_mode
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##
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# Permission for other files
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attr_accessor :data_mode
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2018-12-12 00:07:50 -05:00
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def self.build(spec, skip_validation = false, strict_validation = false, file_name = nil)
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gem_file = file_name || spec.file_name
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2012-11-29 01:52:18 -05:00
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package = new gem_file
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package.spec = spec
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2018-08-27 06:05:04 -04:00
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package.build skip_validation, strict_validation
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2012-11-29 01:52:18 -05:00
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gem_file
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end
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##
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2014-09-13 23:30:02 -04:00
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# Creates a new Gem::Package for the file at +gem+. +gem+ can also be
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# provided as an IO object.
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2012-11-29 01:52:18 -05:00
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#
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# If +gem+ is an existing file in the old format a Gem::Package::Old will be
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# returned.
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2018-11-21 05:20:47 -05:00
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def self.new(gem, security_policy = nil)
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2014-09-13 23:30:02 -04:00
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gem = if gem.is_a?(Gem::Package::Source)
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gem
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elsif gem.respond_to? :read
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Gem::Package::IOSource.new gem
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else
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Gem::Package::FileSource.new gem
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end
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2012-11-29 01:52:18 -05:00
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2015-07-01 17:50:14 -04:00
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return super unless Gem::Package == self
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2014-09-13 23:30:02 -04:00
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return super unless gem.present?
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2012-11-29 01:52:18 -05:00
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2014-09-13 23:30:02 -04:00
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return super unless gem.start
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return super unless gem.start.include? 'MD5SUM ='
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2012-11-29 01:52:18 -05:00
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Gem::Package::Old.new gem
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end
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2019-06-23 22:03:50 -04:00
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##
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# Extracts the Gem::Specification and raw metadata from the .gem file at
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# +path+.
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#--
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2019-06-23 22:08:34 -04:00
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def self.raw_spec(path, security_policy = nil)
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2019-06-23 22:03:50 -04:00
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format = new(path, security_policy)
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spec = format.spec
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metadata = nil
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File.open path, Gem.binary_mode do |io|
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tar = Gem::Package::TarReader.new io
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tar.each_entry do |entry|
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case entry.full_name
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when 'metadata' then
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metadata = entry.read
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when 'metadata.gz' then
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metadata = Gem::Util.gunzip entry.read
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end
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end
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end
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return spec, metadata
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end
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2012-11-29 01:52:18 -05:00
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##
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# Creates a new package that will read or write to the file +gem+.
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2018-11-21 05:20:47 -05:00
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def initialize(gem, security_policy) # :notnew:
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2020-12-08 02:33:39 -05:00
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require 'zlib'
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2012-11-29 01:52:18 -05:00
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@gem = gem
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2019-08-17 00:45:09 -04:00
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@build_time = Gem.source_date_epoch
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2012-11-29 01:52:18 -05:00
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@checksums = {}
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@contents = nil
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2020-06-10 13:46:05 -04:00
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@digests = Hash.new {|h, algorithm| h[algorithm] = {} }
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2012-11-29 01:52:18 -05:00
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@files = nil
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2015-07-01 17:50:14 -04:00
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@security_policy = security_policy
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2012-11-29 01:52:18 -05:00
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@signatures = {}
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@signer = nil
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@spec = nil
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end
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2015-07-01 17:50:14 -04:00
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##
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# Copies this package to +path+ (if possible)
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2018-11-21 05:20:47 -05:00
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def copy_to(path)
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2015-07-01 17:50:14 -04:00
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FileUtils.cp @gem.path, path unless File.exist? path
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end
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2012-11-29 01:52:18 -05:00
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##
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# Adds a checksum for each entry in the gem to checksums.yaml.gz.
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2018-11-21 05:20:47 -05:00
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def add_checksums(tar)
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2012-11-29 01:52:18 -05:00
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Gem.load_yaml
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2020-06-10 13:46:05 -04:00
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checksums_by_algorithm = Hash.new {|h, algorithm| h[algorithm] = {} }
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2012-11-29 01:52:18 -05:00
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@checksums.each do |name, digests|
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digests.each do |algorithm, digest|
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checksums_by_algorithm[algorithm][name] = digest.hexdigest
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end
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end
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tar.add_file_signed 'checksums.yaml.gz', 0444, @signer do |io|
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gzip_to io do |gz_io|
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YAML.dump checksums_by_algorithm, gz_io
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end
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end
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end
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##
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# Adds the files listed in the packages's Gem::Specification to data.tar.gz
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# and adds this file to the +tar+.
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2018-11-21 05:20:47 -05:00
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def add_contents(tar) # :nodoc:
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2012-11-29 01:52:18 -05:00
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digests = tar.add_file_signed 'data.tar.gz', 0444, @signer do |io|
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gzip_to io do |gz_io|
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Gem::Package::TarWriter.new gz_io do |data_tar|
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add_files data_tar
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end
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end
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end
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@checksums['data.tar.gz'] = digests
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end
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##
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# Adds files included the package's Gem::Specification to the +tar+ file
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2018-11-21 05:20:47 -05:00
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def add_files(tar) # :nodoc:
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2012-11-29 01:52:18 -05:00
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@spec.files.each do |file|
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2015-07-01 17:50:14 -04:00
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stat = File.lstat file
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if stat.symlink?
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2021-04-14 23:47:18 -04:00
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tar.add_symlink file, File.readlink(file), stat.mode
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2015-07-01 17:50:14 -04:00
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end
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2012-11-29 01:52:18 -05:00
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2012-12-09 19:13:42 -05:00
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next unless stat.file?
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2012-11-29 01:52:18 -05:00
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tar.add_file_simple file, stat.mode, stat.size do |dst_io|
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2018-02-05 21:58:35 -05:00
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File.open file, 'rb' do |src_io|
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2012-11-29 01:52:18 -05:00
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dst_io.write src_io.read 16384 until src_io.eof?
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end
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end
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end
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end
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##
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# Adds the package's Gem::Specification to the +tar+ file
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2018-11-21 05:20:47 -05:00
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def add_metadata(tar) # :nodoc:
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2012-11-29 01:52:18 -05:00
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digests = tar.add_file_signed 'metadata.gz', 0444, @signer do |io|
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gzip_to io do |gz_io|
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gz_io.write @spec.to_yaml
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end
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end
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@checksums['metadata.gz'] = digests
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end
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##
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# Builds this package based on the specification set by #spec=
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2018-11-21 05:20:47 -05:00
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def build(skip_validation = false, strict_validation = false)
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2018-08-27 06:05:04 -04:00
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raise ArgumentError, "skip_validation = true and strict_validation = true are incompatible" if skip_validation && strict_validation
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2012-11-30 01:20:34 -05:00
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Gem.load_yaml
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2012-11-29 01:52:18 -05:00
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@spec.mark_version
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2018-08-27 06:05:04 -04:00
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@spec.validate true, strict_validation unless skip_validation
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2012-11-29 01:52:18 -05:00
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2018-10-21 20:27:02 -04:00
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setup_signer(
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signer_options: {
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2020-12-08 02:33:39 -05:00
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expiration_length_days: Gem.configuration.cert_expiration_length_days,
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2018-10-21 20:27:02 -04:00
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}
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)
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2012-11-29 01:52:18 -05:00
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2014-09-13 23:30:02 -04:00
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@gem.with_write_io do |gem_io|
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2012-11-29 01:52:18 -05:00
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Gem::Package::TarWriter.new gem_io do |gem|
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add_metadata gem
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add_contents gem
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add_checksums gem
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end
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end
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say <<-EOM
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Successfully built RubyGem
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Name: #{@spec.name}
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Version: #{@spec.version}
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2018-12-12 00:07:50 -05:00
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File: #{File.basename @gem.path}
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2012-11-29 01:52:18 -05:00
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EOM
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ensure
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@signer = nil
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end
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##
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# A list of file names contained in this gem
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def contents
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return @contents if @contents
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verify unless @spec
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@contents = []
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2014-09-13 23:30:02 -04:00
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@gem.with_read_io do |io|
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2012-11-29 01:52:18 -05:00
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gem_tar = Gem::Package::TarReader.new io
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gem_tar.each do |entry|
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next unless entry.full_name == 'data.tar.gz'
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open_tar_gz entry do |pkg_tar|
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|
|
pkg_tar.each do |contents_entry|
|
|
|
|
@contents << contents_entry.full_name
|
2007-11-10 02:48:56 -05:00
|
|
|
end
|
|
|
|
end
|
2012-11-29 01:52:18 -05:00
|
|
|
|
|
|
|
return @contents
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Creates a digest of the TarEntry +entry+ from the digest algorithm set by
|
|
|
|
# the security policy.
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def digest(entry) # :nodoc:
|
|
|
|
algorithms = if @checksums
|
2013-02-07 00:56:53 -05:00
|
|
|
@checksums.keys
|
|
|
|
else
|
2013-09-14 04:59:02 -04:00
|
|
|
[Gem::Security::DIGEST_NAME].compact
|
2013-02-07 00:56:53 -05:00
|
|
|
end
|
2012-11-29 01:52:18 -05:00
|
|
|
|
2013-02-07 00:56:53 -05:00
|
|
|
algorithms.each do |algorithm|
|
2020-06-28 14:39:26 -04:00
|
|
|
digester = Gem::Security.create_digest(algorithm)
|
2012-11-29 01:52:18 -05:00
|
|
|
|
|
|
|
digester << entry.read(16384) until entry.eof?
|
|
|
|
|
|
|
|
entry.rewind
|
|
|
|
|
|
|
|
@digests[algorithm][entry.full_name] = digester
|
|
|
|
end
|
|
|
|
|
|
|
|
@digests
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Extracts the files in this package into +destination_dir+
|
2013-09-14 04:59:02 -04:00
|
|
|
#
|
|
|
|
# If +pattern+ is specified, only entries matching that glob will be
|
|
|
|
# extracted.
|
2012-11-29 01:52:18 -05:00
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def extract_files(destination_dir, pattern = "*")
|
2012-11-29 01:52:18 -05:00
|
|
|
verify unless @spec
|
|
|
|
|
2018-12-22 19:20:49 -05:00
|
|
|
FileUtils.mkdir_p destination_dir, :mode => dir_mode && 0755
|
2012-11-29 01:52:18 -05:00
|
|
|
|
2014-09-13 23:30:02 -04:00
|
|
|
@gem.with_read_io do |io|
|
2012-11-29 01:52:18 -05:00
|
|
|
reader = Gem::Package::TarReader.new io
|
|
|
|
|
|
|
|
reader.each do |entry|
|
|
|
|
next unless entry.full_name == 'data.tar.gz'
|
|
|
|
|
2013-09-14 04:59:02 -04:00
|
|
|
extract_tar_gz entry, destination_dir, pattern
|
2012-11-29 01:52:18 -05:00
|
|
|
|
|
|
|
return # ignore further entries
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Extracts all the files in the gzipped tar archive +io+ into
|
|
|
|
# +destination_dir+.
|
|
|
|
#
|
|
|
|
# If an entry in the archive contains a relative path above
|
|
|
|
# +destination_dir+ or an absolute path is encountered an exception is
|
|
|
|
# raised.
|
2013-09-14 04:59:02 -04:00
|
|
|
#
|
|
|
|
# If +pattern+ is specified, only entries matching that glob will be
|
|
|
|
# extracted.
|
2012-11-29 01:52:18 -05:00
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def extract_tar_gz(io, destination_dir, pattern = "*") # :nodoc:
|
2021-09-30 09:52:05 -04:00
|
|
|
directories = []
|
2012-11-29 01:52:18 -05:00
|
|
|
open_tar_gz io do |tar|
|
|
|
|
tar.each do |entry|
|
2013-10-15 20:14:16 -04:00
|
|
|
next unless File.fnmatch pattern, entry.full_name, File::FNM_DOTMATCH
|
2013-09-14 04:59:02 -04:00
|
|
|
|
2013-10-15 20:14:16 -04:00
|
|
|
destination = install_location entry.full_name, destination_dir
|
2012-11-29 01:52:18 -05:00
|
|
|
|
2021-10-06 12:17:37 -04:00
|
|
|
if entry.symlink?
|
|
|
|
link_target = entry.header.linkname
|
|
|
|
real_destination = link_target.start_with?("/") ? link_target : File.expand_path(link_target, File.dirname(destination))
|
|
|
|
|
|
|
|
raise Gem::Package::SymlinkError.new(entry.full_name, real_destination, destination_dir) unless
|
|
|
|
normalize_path(real_destination).start_with? normalize_path(destination_dir + '/')
|
|
|
|
end
|
|
|
|
|
2012-11-29 01:52:18 -05:00
|
|
|
FileUtils.rm_rf destination
|
|
|
|
|
2013-09-18 17:29:41 -04:00
|
|
|
mkdir_options = {}
|
2018-12-22 19:20:49 -05:00
|
|
|
mkdir_options[:mode] = dir_mode ? 0755 : (entry.header.mode if entry.directory?)
|
2013-09-18 17:29:41 -04:00
|
|
|
mkdir =
|
2018-11-21 05:20:47 -05:00
|
|
|
if entry.directory?
|
2013-09-18 17:29:41 -04:00
|
|
|
destination
|
|
|
|
else
|
|
|
|
File.dirname destination
|
|
|
|
end
|
|
|
|
|
2021-09-30 09:52:05 -04:00
|
|
|
unless directories.include?(mkdir)
|
2021-10-06 12:17:37 -04:00
|
|
|
FileUtils.mkdir_p mkdir, **mkdir_options
|
2021-09-30 09:52:05 -04:00
|
|
|
directories << mkdir
|
|
|
|
end
|
2012-11-29 01:52:18 -05:00
|
|
|
|
2018-02-05 21:58:35 -05:00
|
|
|
File.open destination, 'wb' do |out|
|
2012-11-29 01:52:18 -05:00
|
|
|
out.write entry.read
|
2018-05-30 09:01:35 -04:00
|
|
|
FileUtils.chmod file_mode(entry.header.mode), destination
|
2013-09-18 17:29:41 -04:00
|
|
|
end if entry.file?
|
2012-11-29 01:52:18 -05:00
|
|
|
|
2016-02-01 07:43:26 -05:00
|
|
|
File.symlink(entry.header.linkname, destination) if entry.symlink?
|
2015-07-01 17:50:14 -04:00
|
|
|
|
2014-09-13 23:30:02 -04:00
|
|
|
verbose destination
|
2012-11-29 01:52:18 -05:00
|
|
|
end
|
|
|
|
end
|
2018-05-30 09:01:35 -04:00
|
|
|
|
2021-09-30 09:52:05 -04:00
|
|
|
if dir_mode
|
2018-05-30 09:01:35 -04:00
|
|
|
File.chmod(dir_mode, *directories)
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
def file_mode(mode) # :nodoc:
|
|
|
|
((mode & 0111).zero? ? data_mode : prog_mode) || mode
|
2012-11-29 01:52:18 -05:00
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Gzips content written to +gz_io+ to +io+.
|
|
|
|
#--
|
|
|
|
# Also sets the gzip modification time to the package build time to ease
|
|
|
|
# testing.
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def gzip_to(io) # :yields: gz_io
|
2012-11-29 01:52:18 -05:00
|
|
|
gz_io = Zlib::GzipWriter.new io, Zlib::BEST_COMPRESSION
|
|
|
|
gz_io.mtime = @build_time
|
|
|
|
|
|
|
|
yield gz_io
|
|
|
|
ensure
|
|
|
|
gz_io.close
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Returns the full path for installing +filename+.
|
|
|
|
#
|
|
|
|
# If +filename+ is not inside +destination_dir+ an exception is raised.
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def install_location(filename, destination_dir) # :nodoc:
|
2012-11-29 01:52:18 -05:00
|
|
|
raise Gem::Package::PathError.new(filename, destination_dir) if
|
|
|
|
filename.start_with? '/'
|
|
|
|
|
2021-10-01 10:16:32 -04:00
|
|
|
destination_dir = File.realpath(destination_dir)
|
2021-10-01 10:14:33 -04:00
|
|
|
destination = File.expand_path(filename, destination_dir)
|
2012-11-29 01:52:18 -05:00
|
|
|
|
|
|
|
raise Gem::Package::PathError.new(destination, destination_dir) unless
|
2021-10-05 07:14:17 -04:00
|
|
|
normalize_path(destination).start_with? normalize_path(destination_dir + '/')
|
2012-11-29 01:52:18 -05:00
|
|
|
|
2019-11-11 01:03:57 -05:00
|
|
|
destination.tap(&Gem::UNTAINT)
|
2012-11-29 01:52:18 -05:00
|
|
|
destination
|
|
|
|
end
|
|
|
|
|
2018-05-17 21:39:13 -04:00
|
|
|
def normalize_path(pathname)
|
|
|
|
if Gem.win_platform?
|
|
|
|
pathname.downcase
|
|
|
|
else
|
|
|
|
pathname
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2012-11-29 01:52:18 -05:00
|
|
|
##
|
|
|
|
# Loads a Gem::Specification from the TarEntry +entry+
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def load_spec(entry) # :nodoc:
|
2012-11-29 01:52:18 -05:00
|
|
|
case entry.full_name
|
|
|
|
when 'metadata' then
|
|
|
|
@spec = Gem::Specification.from_yaml entry.read
|
|
|
|
when 'metadata.gz' then
|
2019-09-26 07:01:03 -04:00
|
|
|
Zlib::GzipReader.wrap(entry, external_encoding: Encoding::UTF_8) do |gzio|
|
2012-11-29 01:52:18 -05:00
|
|
|
@spec = Gem::Specification.from_yaml gzio.read
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Opens +io+ as a gzipped tar archive
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def open_tar_gz(io) # :nodoc:
|
2012-11-29 01:52:18 -05:00
|
|
|
Zlib::GzipReader.wrap io do |gzio|
|
|
|
|
tar = Gem::Package::TarReader.new gzio
|
|
|
|
|
|
|
|
yield tar
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Reads and loads checksums.yaml.gz from the tar file +gem+
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def read_checksums(gem)
|
2012-11-29 01:52:18 -05:00
|
|
|
Gem.load_yaml
|
|
|
|
|
|
|
|
@checksums = gem.seek 'checksums.yaml.gz' do |entry|
|
|
|
|
Zlib::GzipReader.wrap entry do |gz_io|
|
2017-10-10 04:58:22 -04:00
|
|
|
Gem::SafeYAML.safe_load gz_io.read
|
2012-11-29 01:52:18 -05:00
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Prepares the gem for signing and checksum generation. If a signing
|
|
|
|
# certificate and key are not present only checksum generation is set up.
|
|
|
|
|
2018-10-21 20:27:02 -04:00
|
|
|
def setup_signer(signer_options: {})
|
2013-09-14 04:59:02 -04:00
|
|
|
passphrase = ENV['GEM_PRIVATE_KEY_PASSPHRASE']
|
2018-11-21 05:20:47 -05:00
|
|
|
if @spec.signing_key
|
2018-10-21 20:27:02 -04:00
|
|
|
@signer =
|
|
|
|
Gem::Security::Signer.new(
|
|
|
|
@spec.signing_key,
|
|
|
|
@spec.cert_chain,
|
|
|
|
passphrase,
|
|
|
|
signer_options
|
|
|
|
)
|
|
|
|
|
2012-11-29 01:52:18 -05:00
|
|
|
@spec.signing_key = nil
|
2020-06-10 13:46:05 -04:00
|
|
|
@spec.cert_chain = @signer.cert_chain.map {|cert| cert.to_s }
|
2012-11-29 01:52:18 -05:00
|
|
|
else
|
2013-09-14 04:59:02 -04:00
|
|
|
@signer = Gem::Security::Signer.new nil, nil, passphrase
|
2020-06-10 13:46:05 -04:00
|
|
|
@spec.cert_chain = @signer.cert_chain.map {|cert| cert.to_pem } if
|
2012-11-29 01:52:18 -05:00
|
|
|
@signer.cert_chain
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# The spec for this gem.
|
|
|
|
#
|
|
|
|
# If this is a package for a built gem the spec is loaded from the
|
|
|
|
# gem and returned. If this is a package for a gem being built the provided
|
|
|
|
# spec is returned.
|
|
|
|
|
|
|
|
def spec
|
|
|
|
verify unless @spec
|
|
|
|
|
|
|
|
@spec
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Verifies that this gem:
|
|
|
|
#
|
|
|
|
# * Contains a valid gem specification
|
|
|
|
# * Contains a contents archive
|
|
|
|
# * The contents archive is not corrupt
|
|
|
|
#
|
|
|
|
# After verification the gem specification from the gem is available from
|
|
|
|
# #spec
|
|
|
|
|
|
|
|
def verify
|
|
|
|
@files = []
|
|
|
|
@spec = nil
|
|
|
|
|
2014-09-13 23:30:02 -04:00
|
|
|
@gem.with_read_io do |io|
|
2012-11-29 01:52:18 -05:00
|
|
|
Gem::Package::TarReader.new io do |reader|
|
|
|
|
read_checksums reader
|
|
|
|
|
|
|
|
verify_files reader
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
verify_checksums @digests, @checksums
|
|
|
|
|
|
|
|
@security_policy.verify_signatures @spec, @digests, @signatures if
|
|
|
|
@security_policy
|
|
|
|
|
|
|
|
true
|
2013-02-04 21:37:35 -05:00
|
|
|
rescue Gem::Security::Exception
|
|
|
|
@spec = nil
|
|
|
|
@files = []
|
|
|
|
raise
|
2012-11-29 01:52:18 -05:00
|
|
|
rescue Errno::ENOENT => e
|
|
|
|
raise Gem::Package::FormatError.new e.message
|
|
|
|
rescue Gem::Package::TarInvalidError => e
|
|
|
|
raise Gem::Package::FormatError.new e.message, @gem
|
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Verifies the +checksums+ against the +digests+. This check is not
|
|
|
|
# cryptographically secure. Missing checksums are ignored.
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def verify_checksums(digests, checksums) # :nodoc:
|
2012-11-29 01:52:18 -05:00
|
|
|
return unless checksums
|
|
|
|
|
|
|
|
checksums.sort.each do |algorithm, gem_digests|
|
|
|
|
gem_digests.sort.each do |file_name, gem_hexdigest|
|
|
|
|
computed_digest = digests[algorithm][file_name]
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
unless computed_digest.hexdigest == gem_hexdigest
|
2012-11-29 01:52:18 -05:00
|
|
|
raise Gem::Package::FormatError.new \
|
|
|
|
"#{algorithm} checksum mismatch for #{file_name}", @gem
|
|
|
|
end
|
2007-11-10 02:48:56 -05:00
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2013-09-14 04:59:02 -04:00
|
|
|
##
|
|
|
|
# Verifies +entry+ in a .gem file.
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def verify_entry(entry)
|
2013-09-14 04:59:02 -04:00
|
|
|
file_name = entry.full_name
|
|
|
|
@files << file_name
|
|
|
|
|
|
|
|
case file_name
|
|
|
|
when /\.sig$/ then
|
|
|
|
@signatures[$`] = entry.read if @security_policy
|
|
|
|
return
|
|
|
|
else
|
|
|
|
digest entry
|
|
|
|
end
|
|
|
|
|
|
|
|
case file_name
|
2018-05-17 21:39:13 -04:00
|
|
|
when "metadata", "metadata.gz" then
|
2013-09-14 04:59:02 -04:00
|
|
|
load_spec entry
|
|
|
|
when 'data.tar.gz' then
|
|
|
|
verify_gz entry
|
|
|
|
end
|
2020-07-12 16:18:01 -04:00
|
|
|
rescue
|
|
|
|
warn "Exception while verifying #{@gem.path}"
|
|
|
|
raise
|
2013-09-14 04:59:02 -04:00
|
|
|
end
|
|
|
|
|
2012-11-29 01:52:18 -05:00
|
|
|
##
|
|
|
|
# Verifies the files of the +gem+
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def verify_files(gem)
|
2012-11-29 01:52:18 -05:00
|
|
|
gem.each do |entry|
|
2013-09-14 04:59:02 -04:00
|
|
|
verify_entry entry
|
2012-11-29 01:52:18 -05:00
|
|
|
end
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
unless @spec
|
2012-11-29 01:52:18 -05:00
|
|
|
raise Gem::Package::FormatError.new 'package metadata is missing', @gem
|
|
|
|
end
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
unless @files.include? 'data.tar.gz'
|
2012-11-29 01:52:18 -05:00
|
|
|
raise Gem::Package::FormatError.new \
|
|
|
|
'package content (data.tar.gz) is missing', @gem
|
|
|
|
end
|
2018-02-16 03:08:06 -05:00
|
|
|
|
|
|
|
if duplicates = @files.group_by {|f| f }.select {|k,v| v.size > 1 }.map(&:first) and duplicates.any?
|
|
|
|
raise Gem::Security::Exception, "duplicate files in the package: (#{duplicates.map(&:inspect).join(', ')})"
|
|
|
|
end
|
2012-11-29 01:52:18 -05:00
|
|
|
end
|
|
|
|
|
|
|
|
##
|
|
|
|
# Verifies that +entry+ is a valid gzipped file.
|
|
|
|
|
2018-11-21 05:20:47 -05:00
|
|
|
def verify_gz(entry) # :nodoc:
|
2012-11-29 01:52:18 -05:00
|
|
|
Zlib::GzipReader.wrap entry do |gzio|
|
|
|
|
gzio.read 16384 until gzio.eof? # gzip checksum verification
|
|
|
|
end
|
|
|
|
rescue Zlib::GzipFile::Error => e
|
|
|
|
raise Gem::Package::FormatError.new(e.message, entry.full_name)
|
|
|
|
end
|
2007-11-10 02:48:56 -05:00
|
|
|
end
|
|
|
|
|
2019-04-22 07:56:16 -04:00
|
|
|
require_relative 'package/digest_io'
|
|
|
|
require_relative 'package/source'
|
|
|
|
require_relative 'package/file_source'
|
|
|
|
require_relative 'package/io_source'
|
|
|
|
require_relative 'package/old'
|
|
|
|
require_relative 'package/tar_header'
|
|
|
|
require_relative 'package/tar_reader'
|
|
|
|
require_relative 'package/tar_reader/entry'
|
|
|
|
require_relative 'package/tar_writer'
|