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# Copyright 2011-2012 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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#   1. Redistributions of source code must retain the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer.
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#
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#   2. Redistributions in binary form must reproduce the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer in the documentation and/or other materials
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#      provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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import logging
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import socket
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from django.conf import settings
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from django.core.mail import send_mail
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from django.utils.translation import ugettext as _
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import astakos.im.messages as astakos_messages
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logger = logging.getLogger(__name__)
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def build_notification(sender, recipients, subject, message):
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    return EmailNotification(sender, recipients, subject, message)
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class Notification(object):
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    def __init__(self, sender, recipients, subject, message):
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        self.sender = sender
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        self.recipients = recipients
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        self.subject = subject
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        self.message = message
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    def send(self):
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        pass
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class EmailNotification(Notification):
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    def send(self):
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        try:
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            send_mail(
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                self.subject,
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                self.message,
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                self.sender,
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                self.recipients
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            )
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        except BaseException, e:
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            logger.exception(e)
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            raise SendNotificationError()
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class SendMailError(Exception):
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    pass
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class SendNotificationError(SendMailError):
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    def __init__(self):
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        self.message = _(astakos_messages.NOTIFICATION_SEND_ERR)
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        super(SendNotificationError, self).__init__()