Class: Raval::ActiveSocket

Inherits:
Object
  • Object
show all
Includes:
Celluloid::IO
Defined in:
lib/raval/active_socket.rb

Overview

In Active FTP mode, the client opens a listening data socket on their host and we connect to it.

A different class is used when operating in passive FTP mode. They both have a #read and #write method, so the quack like each other in the ways that matter.

Instance Method Summary collapse

Constructor Details

#initialize(host, port) ⇒ ActiveSocket

Returns a new instance of ActiveSocket.



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# File 'lib/raval/active_socket.rb', line 16

def initialize(host, port)
  @host, @port = host, port
  @socket = nil
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/raval/active_socket.rb', line 44

def close
  @socket.close if @socket
  @socket = nil
end

#connect ⇒ Object 



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# File 'lib/raval/active_socket.rb', line 21

def connect
  unless @socket
    @socket = ::TCPSocket.new(@host, @port)
  end
end

#connected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/raval/active_socket.rb', line 40

def connected?
  @socket != nil
end

#read ⇒ Object 



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# File 'lib/raval/active_socket.rb', line 27

def read
  connect unless @socket
  @socket.readpartial(4096)
rescue EOFError, Errno::ECONNRESET
  close
  nil
end

#write(data) ⇒ Object 



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# File 'lib/raval/active_socket.rb', line 35

def write(data)
  connect unless @socket
  @socket.write(data)
end