1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
|
# Copyright 2020 The Matrix.org Foundation C.I.C.
#
# 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 http import HTTPStatus
from twisted.test.proto_helpers import MemoryReactor
from synapse.api.errors import Codes
from synapse.events.utils import CANONICALJSON_MAX_INT, CANONICALJSON_MIN_INT
from synapse.rest import admin
from synapse.rest.client import login, room, sync
from synapse.server import HomeServer
from synapse.util import Clock
from tests.unittest import HomeserverTestCase
class PowerLevelsTestCase(HomeserverTestCase):
"""Tests that power levels are enforced in various situations"""
servlets = [
admin.register_servlets,
room.register_servlets,
login.register_servlets,
sync.register_servlets,
]
def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
config = self.default_config()
return self.setup_test_homeserver(config=config)
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
# register a room admin, moderator and regular user
self.admin_user_id = self.register_user("admin", "pass")
self.admin_access_token = self.login("admin", "pass")
self.mod_user_id = self.register_user("mod", "pass")
self.mod_access_token = self.login("mod", "pass")
self.user_user_id = self.register_user("user", "pass")
self.user_access_token = self.login("user", "pass")
# Create a room
self.room_id = self.helper.create_room_as(
self.admin_user_id, tok=self.admin_access_token
)
# Invite the other users
self.helper.invite(
room=self.room_id,
src=self.admin_user_id,
tok=self.admin_access_token,
targ=self.mod_user_id,
)
self.helper.invite(
room=self.room_id,
src=self.admin_user_id,
tok=self.admin_access_token,
targ=self.user_user_id,
)
# Make the other users join the room
self.helper.join(
room=self.room_id, user=self.mod_user_id, tok=self.mod_access_token
)
self.helper.join(
room=self.room_id, user=self.user_user_id, tok=self.user_access_token
)
# Mod the mod
room_power_levels = self.helper.get_state(
self.room_id,
"m.room.power_levels",
tok=self.admin_access_token,
)
# Update existing power levels with mod at PL50
room_power_levels["users"].update({self.mod_user_id: 50})
self.helper.send_state(
self.room_id,
"m.room.power_levels",
room_power_levels,
tok=self.admin_access_token,
)
def test_non_admins_cannot_enable_room_encryption(self) -> None:
# have the mod try to enable room encryption
self.helper.send_state(
self.room_id,
"m.room.encryption",
{"algorithm": "m.megolm.v1.aes-sha2"},
tok=self.mod_access_token,
expect_code=403, # expect failure
)
# have the user try to enable room encryption
self.helper.send_state(
self.room_id,
"m.room.encryption",
{"algorithm": "m.megolm.v1.aes-sha2"},
tok=self.user_access_token,
expect_code=HTTPStatus.FORBIDDEN, # expect failure
)
def test_non_admins_cannot_send_server_acl(self) -> None:
# have the mod try to send a server ACL
self.helper.send_state(
self.room_id,
"m.room.server_acl",
{
"allow": ["*"],
"allow_ip_literals": False,
"deny": ["*.evil.com", "evil.com"],
},
tok=self.mod_access_token,
expect_code=HTTPStatus.FORBIDDEN, # expect failure
)
# have the user try to send a server ACL
self.helper.send_state(
self.room_id,
"m.room.server_acl",
{
"allow": ["*"],
"allow_ip_literals": False,
"deny": ["*.evil.com", "evil.com"],
},
tok=self.user_access_token,
expect_code=HTTPStatus.FORBIDDEN, # expect failure
)
def test_non_admins_cannot_tombstone_room(self) -> None:
# Create another room that will serve as our "upgraded room"
self.upgraded_room_id = self.helper.create_room_as(
self.admin_user_id, tok=self.admin_access_token
)
# have the mod try to send a tombstone event
self.helper.send_state(
self.room_id,
"m.room.tombstone",
{
"body": "This room has been replaced",
"replacement_room": self.upgraded_room_id,
},
tok=self.mod_access_token,
expect_code=HTTPStatus.FORBIDDEN, # expect failure
)
# have the user try to send a tombstone event
self.helper.send_state(
self.room_id,
"m.room.tombstone",
{
"body": "This room has been replaced",
"replacement_room": self.upgraded_room_id,
},
tok=self.user_access_token,
expect_code=403, # expect failure
)
def test_admins_can_enable_room_encryption(self) -> None:
# have the admin try to enable room encryption
self.helper.send_state(
self.room_id,
"m.room.encryption",
{"algorithm": "m.megolm.v1.aes-sha2"},
tok=self.admin_access_token,
expect_code=HTTPStatus.OK, # expect success
)
def test_admins_can_send_server_acl(self) -> None:
# have the admin try to send a server ACL
self.helper.send_state(
self.room_id,
"m.room.server_acl",
{
"allow": ["*"],
"allow_ip_literals": False,
"deny": ["*.evil.com", "evil.com"],
},
tok=self.admin_access_token,
expect_code=HTTPStatus.OK, # expect success
)
def test_admins_can_tombstone_room(self) -> None:
# Create another room that will serve as our "upgraded room"
self.upgraded_room_id = self.helper.create_room_as(
self.admin_user_id, tok=self.admin_access_token
)
# have the admin try to send a tombstone event
self.helper.send_state(
self.room_id,
"m.room.tombstone",
{
"body": "This room has been replaced",
"replacement_room": self.upgraded_room_id,
},
tok=self.admin_access_token,
expect_code=HTTPStatus.OK, # expect success
)
def test_cannot_set_string_power_levels(self) -> None:
room_power_levels = self.helper.get_state(
self.room_id,
"m.room.power_levels",
tok=self.admin_access_token,
)
# Update existing power levels with user at PL "0"
room_power_levels["users"].update({self.user_user_id: "0"})
body = self.helper.send_state(
self.room_id,
"m.room.power_levels",
room_power_levels,
tok=self.admin_access_token,
expect_code=HTTPStatus.BAD_REQUEST, # expect failure
)
self.assertEqual(
body["errcode"],
Codes.BAD_JSON,
body,
)
def test_cannot_set_unsafe_large_power_levels(self) -> None:
room_power_levels = self.helper.get_state(
self.room_id,
"m.room.power_levels",
tok=self.admin_access_token,
)
# Update existing power levels with user at PL above the max safe integer
room_power_levels["users"].update(
{self.user_user_id: CANONICALJSON_MAX_INT + 1}
)
body = self.helper.send_state(
self.room_id,
"m.room.power_levels",
room_power_levels,
tok=self.admin_access_token,
expect_code=HTTPStatus.BAD_REQUEST, # expect failure
)
self.assertEqual(
body["errcode"],
Codes.BAD_JSON,
body,
)
def test_cannot_set_unsafe_small_power_levels(self) -> None:
room_power_levels = self.helper.get_state(
self.room_id,
"m.room.power_levels",
tok=self.admin_access_token,
)
# Update existing power levels with user at PL below the minimum safe integer
room_power_levels["users"].update(
{self.user_user_id: CANONICALJSON_MIN_INT - 1}
)
body = self.helper.send_state(
self.room_id,
"m.room.power_levels",
room_power_levels,
tok=self.admin_access_token,
expect_code=HTTPStatus.BAD_REQUEST, # expect failure
)
self.assertEqual(
body["errcode"],
Codes.BAD_JSON,
body,
)
|
