Class: Whois::Server::SocketHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/whois/server/socket_handler.rb

Overview

The SocketHandler is the default query handler provided with the Whois library. It performs the WHOIS query using a synchronous socket connection.

Constant Summary collapse

RESCUABLE_CONNECTION_ERRORS =

Array of connection errors to rescue and wrap into a ConnectionError

[
  SystemCallError,
  SocketError,
].freeze

Instance Method Summary collapse

Instance Method Details

#call(query, *args) ⇒ String

TODO:

*args might probably be a Hash.

Performs the Socket request.

Parameters:

  • query (String)
  • args (Array)

Returns:

  • (String) 


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# File 'lib/whois/server/socket_handler.rb', line 39

def call(query, *args)
  execute(query, *args)
rescue *RESCUABLE_CONNECTION_ERRORS => e
  raise ConnectionError, "#{e.class}: #{e.message}"
end

#execute(query, *args) ⇒ String

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Executes the low-level Socket connection.

It opens the socket passing given args, sends the query and reads the response.

Parameters:

  • query (String)
  • args (Array)

Returns:

  • (String) 


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# File 'lib/whois/server/socket_handler.rb', line 56

def execute(query, *args)
  client = TCPSocket.new(*args)
  client.write("#{query}\r\n")    # I could use put(foo) and forget the \n
  client.read                     # but write/read is more symmetric than puts/read
ensure                            # and I really want to use read instead of gets.
  client&.close # If != client something went wrong.
end