# Copyright (c) 2012 netzguerilla.net <iro@netzguerilla.net>
# 
# This file is part of Iro.
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
# #Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
# PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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"""
A helper class which allows test code to intercept and store sent email.
(from: http://lakin.weckers.net/thoughts/twisted/part1/threaded/)
"""
import smtpd
import asyncore

class TestSMTPServer(smtpd.SMTPServer):
    """
    An SMTP Server used to allow integration tests which ensure email is sent.
    """

    def __init__(self, localaddr):
        self.rcvd = []
        smtpd.SMTPServer.__init__(self, localaddr, None)

    def start(self):
        import threading
        self.poller = threading.Thread(target=asyncore.loop,
                kwargs={'timeout':0.1, 'use_poll':True})
        self.poller.start()

    def process_message(self, peer, mailfrom, rcpttos, data):
        self.rcvd.append((mailfrom, rcpttos, data))

    def close(self):
        smtpd.SMTPServer.close(self)
        self.poller.join()