Class: MinioRunner::Network

Inherits:
Object
  • Object
show all
Defined in:
lib/minio_runner/network.rb

Defined Under Namespace

Classes: NetworkError

Constant Summary collapse

LONG_RESPONSE_TIME_SECONDS = 
3
MAC_OS_LOCAL_DOMAIN_ERROR_MESSAGE = 
<<~END
  For macOS, there are some issues which cause large delays for .local domain names. See
  https://superuser.com/a/1297335/245469 and https://stackoverflow.com/a/17982964/875941. To
  resolve this, you need to add IPV6 lookup addresses to the hosts file, and it helps to put
  all the entries on one line.

  ::1 minio.local testbucket.minio.local
  fe80::1%lo0 minio.local testbucket.minio.local
  127.0.0.1 minio.local testbucket.minio.local
END
MAX_REDIRECTS = 
5

Class Method Summary collapse

Class Method Details

.download(url, &block) ⇒ Object 



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# File 'lib/minio_runner/network.rb', line 67

def download(url, &block)
  file_name = File.basename(url)
  tempfile =
    Tempfile.open(["", file_name], binmode: true) do |file|
      file.print Network.get(url)
      file
    end

  raise "Could not download #{url}" unless File.exist?(tempfile.to_path)

  MinioRunner.logger.debug("Successfully downloaded #{tempfile.to_path}")

  yield tempfile if block_given?
ensure
  tempfile&.close!
end

.get(url, redirect_limit: MAX_REDIRECTS) ⇒ Object 



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# File 'lib/minio_runner/network.rb', line 26

def get(url, redirect_limit: MAX_REDIRECTS)
  MinioRunner.logger.debug("Making network call to #{url}")
  uri = URI(url)
  response = nil
  request_start_time = Time.now

  begin
    Net::HTTP.start(
      uri.host,
      uri.port,
      use_ssl: uri.scheme == "https",
      open_timeout: MinioRunner::System.mac? ? 10 : 3,
    ) { |http| response = http.get(uri.request_uri) }
  rescue SocketError, Net::OpenTimeout => err
    MinioRunner.logger.debug(
      "Connection error when checking minio server health: #{err.message}",
    )
    log_time_error(request_start_time)
    raise MinioRunner::Network::NetworkError.new(
            "Connection error, cannot reach URL: #{url} (#{err.class})",
          )
  end

  MinioRunner.logger.debug("Get response: #{response.inspect}")

  case response
  when Net::HTTPSuccess
    log_time_error(request_start_time)
    response.body
  when Net::HTTPRedirection
    raise MinioRunner::Network::NetworkError.new("Too many redirects for #{url}") if redirect_limit <= 0
    location = response["location"]
    MinioRunner.logger.debug("Following redirect to #{location}")
    get(location, redirect_limit: redirect_limit - 1)
  else
    raise MinioRunner::Network::NetworkError.new(
            "#{response.class::EXCEPTION_TYPE}: #{response.code} \"#{response.message}\" with #{url}",
          )
  end
end

.log_time_error(request_start_time) ⇒ Object 



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# File 'lib/minio_runner/network.rb', line 84

def log_time_error(request_start_time)
  if (Time.now - request_start_time) > Network::LONG_RESPONSE_TIME_SECONDS &&
       MinioRunner.config.minio_domain.end_with?(".local") && MinioRunner::System.mac?
    MinioRunner.logger.warn(MAC_OS_LOCAL_DOMAIN_ERROR_MESSAGE)
  end
end