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# test_sync_deferred.py
# Copyright (C) 2014 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/>.
"""
Test Leap backend bits: sync with deferred encryption/decryption.
"""
import time
import os
import random
import string
import shutil
from urlparse import urljoin
from twisted.internet import defer
from leap.soledad.common import couch
from leap.soledad.client import sync
from leap.soledad.client.sqlcipher import SQLCipherOptions
from leap.soledad.client.sqlcipher import SQLCipherDatabase
from testscenarios import TestWithScenarios
from leap.soledad.common.tests import u1db_tests as tests
from leap.soledad.common.tests.util import ADDRESS
from leap.soledad.common.tests.util import SoledadWithCouchServerMixin
from leap.soledad.common.tests.util import make_soledad_app
from leap.soledad.common.tests.util import soledad_sync_target
# Just to make clear how this test is different... :)
DEFER_DECRYPTION = True
WAIT_STEP = 1
MAX_WAIT = 10
DBPASS = "pass"
class BaseSoledadDeferredEncTest(SoledadWithCouchServerMixin):
"""
Another base class for testing the deferred encryption/decryption during
the syncs, using the intermediate database.
"""
defer_sync_encryption = True
def setUp(self):
SoledadWithCouchServerMixin.setUp(self)
self.startTwistedServer()
# config info
self.db1_file = os.path.join(self.tempdir, "db1.u1db")
os.unlink(self.db1_file)
self.db_pass = DBPASS
self.email = ADDRESS
# get a random prefix for each test, so we do not mess with
# concurrency during initialization and shutting down of
# each local db.
self.rand_prefix = ''.join(
map(lambda x: random.choice(string.ascii_letters), range(6)))
# open test dbs: db1 will be the local sqlcipher db (which
# instantiates a syncdb). We use the self._soledad instance that was
# already created on some setUp method.
import binascii
tohex = binascii.b2a_hex
key = tohex(self._soledad.secrets.get_local_storage_key())
sync_db_key = tohex(self._soledad.secrets.get_sync_db_key())
dbpath = self._soledad._local_db_path
self.opts = SQLCipherOptions(
dbpath, key, is_raw_key=True, create=False,
defer_encryption=True, sync_db_key=sync_db_key)
self.db1 = SQLCipherDatabase(self.opts)
self.db2 = self.request_state._create_database('test')
def tearDown(self):
# XXX should not access "private" attrs
shutil.rmtree(os.path.dirname(self._soledad._local_db_path))
SoledadWithCouchServerMixin.tearDown(self)
class SyncTimeoutError(Exception):
"""
Dummy exception to notify timeout during sync.
"""
pass
class TestSoledadDbSyncDeferredEncDecr(
TestWithScenarios,
BaseSoledadDeferredEncTest,
tests.TestCaseWithServer):
"""
Test db.sync remote sync shortcut.
Case with deferred encryption and decryption: using the intermediate
syncdb.
"""
scenarios = [
('http', {
'make_app_with_state': make_soledad_app,
'make_database_for_test': tests.make_memory_database_for_test,
}),
]
oauth = False
token = True
def setUp(self):
"""
Need to explicitely invoke inicialization on all bases.
"""
BaseSoledadDeferredEncTest.setUp(self)
self.server = self.server_thread = None
self.syncer = None
def tearDown(self):
"""
Need to explicitely invoke destruction on all bases.
"""
dbsyncer = getattr(self, 'dbsyncer', None)
if dbsyncer:
dbsyncer.close()
BaseSoledadDeferredEncTest.tearDown(self)
def do_sync(self):
"""
Perform sync using SoledadSynchronizer, SoledadSyncTarget
and Token auth.
"""
replica_uid = self._soledad._dbpool.replica_uid
sync_db = self._soledad._sync_db
sync_enc_pool = self._soledad._sync_enc_pool
target = soledad_sync_target(
self, self.db2._dbname,
source_replica_uid=replica_uid,
sync_db=sync_db,
sync_enc_pool=sync_enc_pool)
self.addCleanup(target.close)
return sync.SoledadSynchronizer(
self.db1,
target).sync(defer_decryption=True)
def wait_for_sync(self):
"""
Wait for sync to finish.
"""
wait = 0
syncer = self.syncer
if syncer is not None:
while syncer.syncing:
time.sleep(WAIT_STEP)
wait += WAIT_STEP
if wait >= MAX_WAIT:
raise SyncTimeoutError
@defer.inlineCallbacks
def test_db_sync(self):
"""
Test sync.
Adapted to check for encrypted content.
"""
doc1 = self.db1.create_doc_from_json(tests.simple_doc)
doc2 = self.db2.create_doc_from_json(tests.nested_doc)
local_gen_before_sync = yield self.do_sync()
gen, _, changes = self.db1.whats_changed(local_gen_before_sync)
self.assertEqual(1, len(changes))
self.assertEqual(doc2.doc_id, changes[0][0])
self.assertEqual(1, gen - local_gen_before_sync)
self.assertGetEncryptedDoc(
self.db2, doc1.doc_id, doc1.rev, tests.simple_doc, False)
self.assertGetEncryptedDoc(
self.db1, doc2.doc_id, doc2.rev, tests.nested_doc, False)
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