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# -*- coding: utf-8 -*-
# Copyright 2018 New Vector 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.
import unittest
from synapse import event_auth
from synapse.api.errors import AuthError
from synapse.api.room_versions import RoomVersions
from synapse.events import make_event_from_dict
from synapse.types import get_domain_from_id
class EventAuthTestCase(unittest.TestCase):
def test_random_users_cannot_send_state_before_first_pl(self):
"""
Check that, before the first PL lands, the creator is the only user
that can send a state event.
"""
creator = "@creator:example.com"
joiner = "@joiner:example.com"
auth_events = {
("m.room.create", ""): _create_event(creator),
("m.room.member", creator): _join_event(creator),
("m.room.member", joiner): _join_event(joiner),
}
# creator should be able to send state
event_auth.check(
RoomVersions.V1,
_random_state_event(creator),
auth_events,
do_sig_check=False,
)
# joiner should not be able to send state
self.assertRaises(
AuthError,
event_auth.check,
RoomVersions.V1,
_random_state_event(joiner),
auth_events,
do_sig_check=False,
)
def test_state_default_level(self):
"""
Check that users above the state_default level can send state and
those below cannot
"""
creator = "@creator:example.com"
pleb = "@joiner:example.com"
king = "@joiner2:example.com"
auth_events = {
("m.room.create", ""): _create_event(creator),
("m.room.member", creator): _join_event(creator),
("m.room.power_levels", ""): _power_levels_event(
creator, {"state_default": "30", "users": {pleb: "29", king: "30"}}
),
("m.room.member", pleb): _join_event(pleb),
("m.room.member", king): _join_event(king),
}
# pleb should not be able to send state
self.assertRaises(
AuthError,
event_auth.check,
RoomVersions.V1,
_random_state_event(pleb),
auth_events,
do_sig_check=False,
),
# king should be able to send state
event_auth.check(
RoomVersions.V1, _random_state_event(king), auth_events, do_sig_check=False,
)
def test_alias_event(self):
"""Alias events have special behavior up through room version 6."""
creator = "@creator:example.com"
other = "@other:example.com"
auth_events = {
("m.room.create", ""): _create_event(creator),
("m.room.member", creator): _join_event(creator),
}
# creator should be able to send aliases
event_auth.check(
RoomVersions.V1, _alias_event(creator), auth_events, do_sig_check=False,
)
# Reject an event with no state key.
with self.assertRaises(AuthError):
event_auth.check(
RoomVersions.V1,
_alias_event(creator, state_key=""),
auth_events,
do_sig_check=False,
)
# If the domain of the sender does not match the state key, reject.
with self.assertRaises(AuthError):
event_auth.check(
RoomVersions.V1,
_alias_event(creator, state_key="test.com"),
auth_events,
do_sig_check=False,
)
# Note that the member does *not* need to be in the room.
event_auth.check(
RoomVersions.V1, _alias_event(other), auth_events, do_sig_check=False,
)
def test_msc2432_alias_event(self):
"""After MSC2432, alias events have no special behavior."""
creator = "@creator:example.com"
other = "@other:example.com"
auth_events = {
("m.room.create", ""): _create_event(creator),
("m.room.member", creator): _join_event(creator),
}
# creator should be able to send aliases
event_auth.check(
RoomVersions.MSC2432_DEV,
_alias_event(creator),
auth_events,
do_sig_check=False,
)
# No particular checks are done on the state key.
event_auth.check(
RoomVersions.MSC2432_DEV,
_alias_event(creator, state_key=""),
auth_events,
do_sig_check=False,
)
event_auth.check(
RoomVersions.MSC2432_DEV,
_alias_event(creator, state_key="test.com"),
auth_events,
do_sig_check=False,
)
# Per standard auth rules, the member must be in the room.
with self.assertRaises(AuthError):
event_auth.check(
RoomVersions.MSC2432_DEV,
_alias_event(other),
auth_events,
do_sig_check=False,
)
# helpers for making events
TEST_ROOM_ID = "!test:room"
def _create_event(user_id):
return make_event_from_dict(
{
"room_id": TEST_ROOM_ID,
"event_id": _get_event_id(),
"type": "m.room.create",
"sender": user_id,
"content": {"creator": user_id},
}
)
def _join_event(user_id):
return make_event_from_dict(
{
"room_id": TEST_ROOM_ID,
"event_id": _get_event_id(),
"type": "m.room.member",
"sender": user_id,
"state_key": user_id,
"content": {"membership": "join"},
}
)
def _power_levels_event(sender, content):
return make_event_from_dict(
{
"room_id": TEST_ROOM_ID,
"event_id": _get_event_id(),
"type": "m.room.power_levels",
"sender": sender,
"state_key": "",
"content": content,
}
)
def _alias_event(sender, **kwargs):
data = {
"room_id": TEST_ROOM_ID,
"event_id": _get_event_id(),
"type": "m.room.aliases",
"sender": sender,
"state_key": get_domain_from_id(sender),
"content": {"aliases": []},
}
data.update(**kwargs)
return make_event_from_dict(data)
def _random_state_event(sender):
return make_event_from_dict(
{
"room_id": TEST_ROOM_ID,
"event_id": _get_event_id(),
"type": "test.state",
"sender": sender,
"state_key": "",
"content": {"membership": "join"},
}
)
event_count = 0
def _get_event_id():
global event_count
c = event_count
event_count += 1
return "!%i:example.com" % (c,)
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