Module: Ftpd::GetsPeerAddress

Included in:
ConnectionTracker
Defined in:
lib/ftpd/gets_peer_address.rb

Instance Method Summary collapse

Instance Method Details

#peer_ip(socket) ⇒ String

Obtain the IP that the client connected from.

How this is done depends upon which type of socket (SSL or not) and what version of Ruby.

  • SSL socket

    • #peeraddr. Uses BasicSocket.do_not_reverse_lookup.

  • Ruby 1.8.7

    • #peeraddr, which does not take the “reverse lookup” argument, relying instead using BasicSocket.do_not_reverse_lookup.

    • #getpeername, which does not do a reverse lookup. It is a little uglier than #peeraddr.

  • Ruby >=1.9.3

    • #peeraddr, which takes the “reverse lookup” argument.

    • #getpeername - same as 1.8.7

Returns:

  • (String) —

    IP address



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# File 'lib/ftpd/gets_peer_address.rb', line 26

def peer_ip(socket)
  if socket.respond_to?(:getpeername)
    # Non SSL
    sockaddr = socket.getpeername
    _port, host = Socket.unpack_sockaddr_in(sockaddr)
    host
  else
    # SSL
    BasicSocket.do_not_reverse_lookup = true
    socket.peeraddr.last
  end
end