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# -*- coding: utf-8 -*-
# Copyright 2015 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from tests import unittest
from tests.utils import MockClock
from synapse.events.builder import EventBuilderFactory
from synapse.crypto.event_signing import add_hashes_and_signatures
from synapse.types import EventID
from unpaddedbase64 import decode_base64
import nacl.signing
# Perform these tests using given secret key so we get entirely deterministic
# signatures output that we can test against.
SIGNING_KEY_SEED = decode_base64(
"YJDBA9Xnr2sVqXD9Vj7XVUnmFZcZrlw8Md7kMW+3XA1"
)
KEY_ALG = "ed25519"
KEY_VER = 1
KEY_NAME = "%s:%d" % (KEY_ALG, KEY_VER)
HOSTNAME = "domain"
class EventBuilderFactoryWithPredicableIDs(EventBuilderFactory):
""" A subclass of EventBuilderFactory that generates entirely predicatable
event IDs, so we can assert on them. """
def create_event_id(self):
i = str(self.event_id_count)
self.event_id_count += 1
return EventID.create(i, self.hostname).to_string()
class EventSigningTestCase(unittest.TestCase):
def setUp(self):
self.event_builder_factory = EventBuilderFactoryWithPredicableIDs(
clock=MockClock(),
hostname=HOSTNAME,
)
self.signing_key = nacl.signing.SigningKey(SIGNING_KEY_SEED)
self.signing_key.alg = KEY_ALG
self.signing_key.version = KEY_VER
def test_sign(self):
builder = self.event_builder_factory.new(
{'type': "X"}
)
self.assertEquals(
builder.build().get_dict(),
{
'event_id': "$0:domain",
'origin': "domain",
'origin_server_ts': 1000000,
'signatures': {},
'type': "X",
'unsigned': {'age_ts': 1000000},
},
)
add_hashes_and_signatures(builder, HOSTNAME, self.signing_key)
event = builder.build()
self.assertTrue(hasattr(event, 'hashes'))
self.assertTrue('sha256' in event.hashes)
self.assertEquals(
event.hashes['sha256'],
"6tJjLpXtggfke8UxFhAKg82QVkJzvKOVOOSjUDK4ZSI",
)
self.assertTrue(hasattr(event, 'signatures'))
self.assertTrue(HOSTNAME in event.signatures)
self.assertTrue(KEY_NAME in event.signatures["domain"])
self.assertEquals(
event.signatures[HOSTNAME][KEY_NAME],
"2Wptgo4CwmLo/Y8B8qinxApKaCkBG2fjTWB7AbP5Uy+"
"aIbygsSdLOFzvdDjww8zUVKCmI02eP9xtyJxc/cLiBA",
)
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