class Bundler::Fetcher::Downloader

def request(uri, options)
  validate_uri_scheme!(uri)
  Bundler.ui.debug "HTTP GET #{uri}"
  req = Net::HTTP::Get.new uri.request_uri, options
  if uri.user
    user = CGI.unescape(uri.user)
    password = uri.password ? CGI.unescape(uri.password) : nil
    req.basic_auth(user, password)
  end
  connection.request(uri, req)
rescue NoMethodError => e
  raise unless ["undefined method", "use_ssl="].all? {|snippet| e.message.include? snippet }
  raise LoadError.new("cannot load such file -- openssl")
rescue OpenSSL::SSL::SSLError
  raise CertificateFailureError.new(uri)
rescue *HTTP_ERRORS => e
  Bundler.ui.trace e
  case e.message
  when /host down:/, /getaddrinfo: nodename nor servname provided/
    raise NetworkDownError, "Could not reach host #{uri.host}. Check your network " \
    "connection and try again."
  else
    raise HTTPError, "Network error while fetching #{URICredentialsFilter.credential_filtered_uri(uri)}"
  end
end