python/lib/django_1_4/django/core/mail/utils.py

   1 """
   2 Email message and email sending related helper functions.
   3 """
   4
   5 import socket
   6
   7
   8 # Cache the hostname, but do it lazily: socket.getfqdn() can take a couple of
   9 # seconds, which slows down the restart of the server.
  10 class CachedDnsName(object):
  11     def __str__(self):
  12         return self.get_fqdn()
  13
  14     def get_fqdn(self):
  15         if not hasattr(self, '_fqdn'):
  16             self._fqdn = socket.getfqdn()
  17         return self._fqdn
  18
  19 DNS_NAME = CachedDnsName()