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# -*- coding: utf-8 -*-
# utils.py
# Copyright (C) 2014, 2015 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Common utilities for testing Soledad IMAP Server.
"""
from email import parser
from mock import Mock
from twisted.cred.checkers import ICredentialsChecker
from twisted.cred.credentials import IUsernamePassword
from twisted.cred.error import UnauthorizedLogin
from twisted.cred.portal import Portal, IRealm
from twisted.mail import imap4
from twisted.internet import defer
from twisted.protocols import loopback
from twisted.python import log
from zope.interface import implementer
from leap.mail.adaptors import soledad as soledad_adaptor
from leap.mail.imap.account import IMAPAccount
from leap.mail.imap.server import LEAPIMAPServer
from leap.mail.tests.common import SoledadTestMixin
TEST_USER = "testuser@leap.se"
TEST_PASSWD = "1234"
#
# Simple IMAP4 Client for testing
#
class SimpleClient(imap4.IMAP4Client):
"""
A Simple IMAP4 Client to test our
Soledad-LEAPServer
"""
def __init__(self, deferred, contextFactory=None):
imap4.IMAP4Client.__init__(self, contextFactory)
self.deferred = deferred
self.events = []
def serverGreeting(self, caps):
self.deferred.callback(None)
def modeChanged(self, writeable):
self.events.append(['modeChanged', writeable])
self.transport.loseConnection()
def flagsChanged(self, newFlags):
self.events.append(['flagsChanged', newFlags])
self.transport.loseConnection()
def newMessages(self, exists, recent):
self.events.append(['newMessages', exists, recent])
self.transport.loseConnection()
#
# Dummy credentials for tests
#
@implementer(IRealm)
class TestRealm(object):
def __init__(self, account):
self._account = account
def requestAvatar(self, avatarId, mind, *interfaces):
avatar = self._account
return (imap4.IAccount, avatar,
getattr(avatar, 'logout', lambda: None))
@implementer(ICredentialsChecker)
class TestCredentialsChecker(object):
credentialInterfaces = (IUsernamePassword,)
userid = TEST_USER
password = TEST_PASSWD
def requestAvatarId(self, credentials):
username, password = credentials.username, credentials.password
d = self.checkTestCredentials(username, password)
d.addErrback(lambda f: defer.fail(UnauthorizedLogin()))
return d
def checkTestCredentials(self, username, password):
if username == self.userid and password == self.password:
return defer.succeed(username)
else:
return defer.fail(Exception("Wrong credentials"))
class TestSoledadIMAPServer(LEAPIMAPServer):
def __init__(self, account, *args, **kw):
LEAPIMAPServer.__init__(self, *args, **kw)
realm = TestRealm(account)
portal = Portal(realm)
checker = TestCredentialsChecker()
self.checker = checker
self.portal = portal
portal.registerChecker(checker)
class IMAP4HelperMixin(SoledadTestMixin):
"""
MixIn containing several utilities to be shared across
different TestCases
"""
serverCTX = None
clientCTX = None
def setUp(self):
soledad_adaptor.cleanup_deferred_locks()
USERID = TEST_USER
def setup_server(account):
self.server = TestSoledadIMAPServer(
account=account,
contextFactory=self.serverCTX)
self.server.theAccount = account
d_server_ready = defer.Deferred()
self.client = SimpleClient(
d_server_ready, contextFactory=self.clientCTX)
self.connected = d_server_ready
def setup_account(_):
self.parser = parser.Parser()
# XXX this should be fixed in soledad.
# Soledad sync makes trial block forever. The sync it's mocked to
# fix this problem. _mock_soledad_get_from_index can be used from
# the tests to provide documents.
# TODO see here, possibly related?
# -- http://www.pythoneye.com/83_20424875/
self._soledad.sync = Mock()
d = defer.Deferred()
self.acc = IMAPAccount(self._soledad, USERID, d=d)
return d
d = super(IMAP4HelperMixin, self).setUp()
d.addCallback(setup_account)
d.addCallback(setup_server)
return d
def tearDown(self):
SoledadTestMixin.tearDown(self)
del self._soledad
del self.client
del self.server
del self.connected
def _cbStopClient(self, ignore):
self.client.transport.loseConnection()
def _ebGeneral(self, failure):
self.client.transport.loseConnection()
self.server.transport.loseConnection()
if hasattr(self, 'function'):
log.err(failure, "Problem with %r" % (self.function,))
def loopback(self):
return loopback.loopbackAsync(self.server, self.client)
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