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#
# Copyright (c) 2014 ThoughtWorks, Inc.
#
# Pixelated is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pixelated is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Pixelated. If not, see <http://www.gnu.org/licenses/>.
from StringIO import StringIO
from email.utils import parseaddr
from twisted.internet.defer import Deferred, fail
from twisted.mail.smtp import SMTPSenderFactory
from twisted.internet import reactor
from pixelated.support.functional import flatten
class SMTPDownException(Exception):
def __init__(self):
Exception.__init__(self, "Couldn't send mail now, try again later.")
class MailSender(object):
def __init__(self, account_email_address, ensure_smtp_is_running_cb):
self.ensure_smtp_is_running_cb = ensure_smtp_is_running_cb
self.account_email_address = account_email_address
def sendmail(self, mail):
if self.ensure_smtp_is_running_cb():
recipients = flatten([mail.to, mail.cc, mail.bcc])
result_deferred = Deferred()
sender_factory = SMTPSenderFactory(
fromEmail=self.account_email_address,
toEmail=set([parseaddr(recipient)[1] for recipient in recipients]),
file=StringIO(mail.to_smtp_format()),
deferred=result_deferred)
reactor.connectTCP('localhost', 4650, sender_factory)
return result_deferred
return fail(SMTPDownException())
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