# Source: F. Sarker, S. Washington. "Learning Python Network Programming"

import tincanchat
 
HOST = '127.0.0.1' #tincanchat.HOST
PORT = tincanchat.PORT

def handle_client(sock, addr):
   """Receive data from the client via sock and echo
   it back"""

   try:
      # Blocks until received complete message
      msg = tincanchat.recv_msg(sock)
      print('{0}: {1}'.format(addr, msg))
      # Blocks until sent
      tincanchat.send_msg(sock, msg) 
   except (ConnectionError, BrokenPipeError):
      print('Socket error')
   finally:
      print('Closed connection to {0}'.format(addr))
      sock.close()

listen_sock = tincanchat.create_listen_socket(HOST, PORT)
addr = listen_sock.getsockname()
print('Listening on {0}'.format(addr))

while True:
      client_sock, addr = listen_sock.accept()
      print('Connection from {0}'. format(addr))
      handle_client(client_sock, addr)