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# Copyright 2011-2012 GRNET S.A. All rights reserved.

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import logging

import socket

from django.conf import settings

from django.core.mail import send_mail

from django.utils.translation import ugettext as _

import astakos.im.messages as astakos_messages

logger = logging.getLogger(__name__)

def build_notification(sender, recipients, subject, message):

    return EmailNotification(sender, recipients, subject, message)

class Notification(object):

    def __init__(self, sender, recipients, subject, message):

        self.sender = sender

        self.recipients = recipients

        self.subject = subject

        self.message = message

    def send(self):

        pass

class EmailNotification(Notification):

    def send(self):

        try:

            send_mail(

                self.subject,

                self.message,

                self.sender,

                self.recipients

            )

        except BaseException, e:

            logger.exception(e)

            raise SendNotificationError()

class SendMailError(Exception):

    pass

class SendNotificationError(SendMailError):

    def __init__(self):

        self.message = _(astakos_messages.NOTIFICATION_SEND_ERR)

        super(SendNotificationError, self).__init__()