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ruby30
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bundler-2.2.33
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Filename :
rubygems_gem_installer.rb
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# frozen_string_literal: true require "rubygems/installer" module Bundler class RubyGemsGemInstaller < Gem::Installer def check_executable_overwrite(filename) # Bundler needs to install gems regardless of binstub overwriting end def install pre_install_checks run_pre_install_hooks spec.loaded_from = spec_file # Completely remove any previous gem files strict_rm_rf gem_dir strict_rm_rf spec.extension_dir SharedHelpers.filesystem_access(gem_dir, :create) do FileUtils.mkdir_p gem_dir, :mode => 0o755 end extract_files build_extensions write_build_info_file run_post_build_hooks generate_bin generate_plugins write_spec SharedHelpers.filesystem_access("#{gem_home}/cache", :write) do write_cache_file end say spec.post_install_message unless spec.post_install_message.nil? run_post_install_hooks spec end def generate_plugins return unless Gem::Installer.instance_methods(false).include?(:generate_plugins) latest = Gem::Specification.stubs_for(spec.name).first return if latest && latest.version > spec.version ensure_writable_dir @plugins_dir if spec.plugins.empty? remove_plugins_for(spec, @plugins_dir) else regenerate_plugins_for(spec, @plugins_dir) end end def pre_install_checks super && validate_bundler_checksum(options[:bundler_expected_checksum]) end def build_extensions extension_cache_path = options[:bundler_extension_cache_path] unless extension_cache_path && extension_dir = spec.extension_dir require "shellwords" # compensate missing require in rubygems before version 3.2.25 return super end extension_dir = Pathname.new(extension_dir) build_complete = SharedHelpers.filesystem_access(extension_cache_path.join("gem.build_complete"), :read, &:file?) if build_complete && !options[:force] SharedHelpers.filesystem_access(extension_dir.parent, &:mkpath) SharedHelpers.filesystem_access(extension_cache_path) do FileUtils.cp_r extension_cache_path, spec.extension_dir end else require "shellwords" # compensate missing require in rubygems before version 3.2.25 super if extension_dir.directory? # not made for gems without extensions SharedHelpers.filesystem_access(extension_cache_path.parent, &:mkpath) SharedHelpers.filesystem_access(extension_cache_path) do FileUtils.cp_r extension_dir, extension_cache_path end end end end private def strict_rm_rf(dir) # FileUtils.rm_rf should probably rise in case of permission issues like # `rm -rf` does. However, it fails to delete the folder silently due to # https://github.com/ruby/fileutils/issues/57. It should probably be fixed # inside `fileutils` but for now I`m checking whether the folder was # removed after it completes, and raising otherwise. FileUtils.rm_rf dir raise PermissionError.new(dir, :delete) if File.directory?(dir) end def validate_bundler_checksum(checksum) return true if Bundler.settings[:disable_checksum_validation] return true unless checksum return true unless source = @package.instance_variable_get(:@gem) return true unless source.respond_to?(:with_read_io) digest = source.with_read_io do |io| digest = SharedHelpers.digest(:SHA256).new digest << io.read(16_384) until io.eof? io.rewind send(checksum_type(checksum), digest) end unless digest == checksum raise SecurityError, <<-MESSAGE Bundler cannot continue installing #{spec.name} (#{spec.version}). The checksum for the downloaded `#{spec.full_name}.gem` does not match \ the checksum given by the server. This means the contents of the downloaded \ gem is different from what was uploaded to the server, and could be a potential security issue. To resolve this issue: 1. delete the downloaded gem located at: `#{spec.gem_dir}/#{spec.full_name}.gem` 2. run `bundle install` If you wish to continue installing the downloaded gem, and are certain it does not pose a \ security issue despite the mismatching checksum, do the following: 1. run `bundle config set --local disable_checksum_validation true` to turn off checksum verification 2. run `bundle install` (More info: The expected SHA256 checksum was #{checksum.inspect}, but the \ checksum for the downloaded gem was #{digest.inspect}.) MESSAGE end true end def checksum_type(checksum) case checksum.length when 64 then :hexdigest! when 44 then :base64digest! else raise InstallError, "The given checksum for #{spec.full_name} (#{checksum.inspect}) is not a valid SHA256 hexdigest nor base64digest" end end def hexdigest!(digest) digest.hexdigest! end def base64digest!(digest) if digest.respond_to?(:base64digest!) digest.base64digest! else [digest.digest!].pack("m0") end end end end