class Bundler::Fetcher::Index

def fetch_spec(spec)
  spec -= [nil, "ruby", ""]
  spec_file_name = "#{spec.join "-"}.gemspec"
  uri = URI.parse("#{remote_uri}#{Gem::MARSHAL_SPEC_DIR}#{spec_file_name}.rz")
  if uri.scheme == "file"
    Bundler.load_marshal Gem.inflate(Gem.read_binary(uri.path))
  elsif cached_spec_path = gemspec_cached_path(spec_file_name)
    Bundler.load_gemspec(cached_spec_path)
  else
    Bundler.load_marshal Gem.inflate(downloader.fetch(uri).body)
  end
rescue MarshalError
  raise HTTPError, "Gemspec #{spec} contained invalid data.\n" \
    "Your network or your gem server is probably having issues right now."
end

def gemspec_cached_path(spec_file_name)
  paths = Bundler.rubygems.spec_cache_dirs.map {|dir| File.join(dir, spec_file_name) }
  paths.find {|path| File.file? path }
end

def specs(_gem_names)
  Bundler.rubygems.fetch_all_remote_specs(remote)
rescue Gem::RemoteFetcher::FetchError, OpenSSL::SSL::SSLError, Net::HTTPFatalError => e
  case e.message
  when /certificate verify failed/
    raise CertificateFailureError.new(display_uri)
  when /401/
    raise AuthenticationRequiredError, remote_uri
  when /403/
    raise BadAuthenticationError, remote_uri if remote_uri.userinfo
    raise AuthenticationRequiredError, remote_uri
  else
    Bundler.ui.trace e
    raise HTTPError, "Could not fetch specs from #{display_uri}"
  end
end