# なぜか timeout error が起こるので wget で代用
class Gem::RemoteFetcher
  alias open_uri_or_path_orig open_uri_or_path
  def open_uri_or_path(uri, last_modified = nil, head = false, depth = 0)
    raise "block is dead" if block_given?

    # HEADメソッドならオリジナルに任せる
    return open_uri_or_path_orig(uri, last_modified, head, depth) if head

    uri = URI.parse uri unless URI::Generic === uri
    unless ['http', 'https', 'file'].include?(uri.scheme)
     raise ArgumentError, 'uri scheme is invalid'
    end

    # file://プロトコルならオリジナルに任せる
    return open_uri_or_path_orig(uri, last_modified, head, depth) if uri.scheme == 'file'

    response = nil

    require 'tmpdir'
    Dir.mktmpdir do |dir|
      cmd = "wget"

      unless uri.nil? || uri.user.nil? || uri.user.empty? then
        cmd += " --user=#{uri.user}"
        cmd += " --password=#{uri.password}" if uri.password.to_s.size > 0
      end

      fn = File.join("#{dir}", "#{rand}")

      ua = "RubyGems/#{Gem::RubyGemsVersion} #{Gem::Platform.local}"
      ua << " Ruby/#{RUBY_VERSION} (#{RUBY_RELEASE_DATE}"
      ua << " patchlevel #{RUBY_PATCHLEVEL}" if defined? RUBY_PATCHLEVEL
      ua << ")"
      cmd += " -U '#{ua}'"
      cmd += " -O '#{fn}'"
      cmd += " -q '#{uri}'"
      system(cmd)

      response = File.open(fn, "rb"){ |f| f.read }
    end
    response
  end
end