Synnefo

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

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# Methods for sending email

import json

from django.core.mail import send_mail

from django.conf import settings

import amqp_connection

from synnefo.logic import log

_logger = log.get_logger("synnefo.logic")

def send_async(frm = settings.SYSTEM_EMAIL_ADDR,

               to = None, subject = None, body = None):

    """

        Queue a message to be sent sometime later

        by a worker process.

    """

    msg = dict()

    msg['frm'] = frm

    msg['to'] = to

    msg['subject'] = subject

    msg['body'] = body

    routekey = "logic.email.outgoing"

    amqp_connection.send(json.dumps(msg), settings.EXCHANGE_API, routekey)

def send (sender = settings.SYSTEM_EMAIL_ADDR,

          recipient = None, subject = None, body = None):

    attempts = 0

    while attempts < 3:

        try:

            send_mail(subject, body, sender, [recipient])

            return True

        except Exception as e:

            _logger.exception("Error sending email")

        finally:

            attempts += 1

    _logger.warn("Failed all %d attempts to send email, aborting", attempts)

    return False