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synapse/tests/api/test_auth.py

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# -*- coding: utf-8 -*-
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# Copyright 2015 - 2016 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.
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from mock import Mock
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import pymacaroons
from twisted.internet import defer
import synapse.handlers.auth
from synapse.api.auth import Auth
from synapse.api.constants import UserTypes
from synapse.api.errors import (
AuthError,
Codes,
InvalidClientCredentialsError,
InvalidClientTokenError,
MissingClientTokenError,
ResourceLimitError,
)
from synapse.types import UserID
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from tests import unittest
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from tests.utils import mock_getRawHeaders, setup_test_homeserver
class TestHandlers(object):
def __init__(self, hs):
self.auth_handler = synapse.handlers.auth.AuthHandler(hs)
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class AuthTestCase(unittest.TestCase):
@defer.inlineCallbacks
def setUp(self):
self.state_handler = Mock()
self.store = Mock()
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self.hs = yield setup_test_homeserver(self.addCleanup, handlers=None)
self.hs.get_datastore = Mock(return_value=self.store)
self.hs.handlers = TestHandlers(self.hs)
self.auth = Auth(self.hs)
self.test_user = "@foo:bar"
self.test_token = b"_test_token_"
# this is overridden for the appservice tests
self.store.get_app_service_by_token = Mock(return_value=None)
self.store.is_support_user = Mock(return_value=defer.succeed(False))
@defer.inlineCallbacks
def test_get_user_by_req_user_valid_token(self):
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user_info = {"name": self.test_user, "token_id": "ditto", "device_id": "device"}
self.store.get_user_by_access_token = Mock(return_value=user_info)
request = Mock(args={})
request.args[b"access_token"] = [self.test_token]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
requester = yield self.auth.get_user_by_req(request)
self.assertEquals(requester.user.to_string(), self.test_user)
def test_get_user_by_req_user_bad_token(self):
self.store.get_user_by_access_token = Mock(return_value=None)
request = Mock(args={})
request.args[b"access_token"] = [self.test_token]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
d = self.auth.get_user_by_req(request)
f = self.failureResultOf(d, InvalidClientTokenError).value
self.assertEqual(f.code, 401)
self.assertEqual(f.errcode, "M_UNKNOWN_TOKEN")
def test_get_user_by_req_user_missing_token(self):
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user_info = {"name": self.test_user, "token_id": "ditto"}
self.store.get_user_by_access_token = Mock(return_value=user_info)
request = Mock(args={})
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
d = self.auth.get_user_by_req(request)
f = self.failureResultOf(d, MissingClientTokenError).value
self.assertEqual(f.code, 401)
self.assertEqual(f.errcode, "M_MISSING_TOKEN")
@defer.inlineCallbacks
def test_get_user_by_req_appservice_valid_token(self):
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app_service = Mock(
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token="foobar", url="a_url", sender=self.test_user, ip_range_whitelist=None
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)
self.store.get_app_service_by_token = Mock(return_value=app_service)
self.store.get_user_by_access_token = Mock(return_value=None)
request = Mock(args={})
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request.getClientIP.return_value = "127.0.0.1"
request.args[b"access_token"] = [self.test_token]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
requester = yield self.auth.get_user_by_req(request)
self.assertEquals(requester.user.to_string(), self.test_user)
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@defer.inlineCallbacks
def test_get_user_by_req_appservice_valid_token_good_ip(self):
from netaddr import IPSet
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app_service = Mock(
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token="foobar",
url="a_url",
sender=self.test_user,
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ip_range_whitelist=IPSet(["192.168/16"]),
)
self.store.get_app_service_by_token = Mock(return_value=app_service)
self.store.get_user_by_access_token = Mock(return_value=None)
request = Mock(args={})
request.getClientIP.return_value = "192.168.10.10"
request.args[b"access_token"] = [self.test_token]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
requester = yield self.auth.get_user_by_req(request)
self.assertEquals(requester.user.to_string(), self.test_user)
def test_get_user_by_req_appservice_valid_token_bad_ip(self):
from netaddr import IPSet
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app_service = Mock(
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token="foobar",
url="a_url",
sender=self.test_user,
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ip_range_whitelist=IPSet(["192.168/16"]),
)
self.store.get_app_service_by_token = Mock(return_value=app_service)
self.store.get_user_by_access_token = Mock(return_value=None)
request = Mock(args={})
request.getClientIP.return_value = "131.111.8.42"
request.args[b"access_token"] = [self.test_token]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
d = self.auth.get_user_by_req(request)
f = self.failureResultOf(d, InvalidClientTokenError).value
self.assertEqual(f.code, 401)
self.assertEqual(f.errcode, "M_UNKNOWN_TOKEN")
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def test_get_user_by_req_appservice_bad_token(self):
self.store.get_app_service_by_token = Mock(return_value=None)
self.store.get_user_by_access_token = Mock(return_value=None)
request = Mock(args={})
request.args[b"access_token"] = [self.test_token]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
d = self.auth.get_user_by_req(request)
f = self.failureResultOf(d, InvalidClientTokenError).value
self.assertEqual(f.code, 401)
self.assertEqual(f.errcode, "M_UNKNOWN_TOKEN")
def test_get_user_by_req_appservice_missing_token(self):
app_service = Mock(token="foobar", url="a_url", sender=self.test_user)
self.store.get_app_service_by_token = Mock(return_value=app_service)
self.store.get_user_by_access_token = Mock(return_value=None)
request = Mock(args={})
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
d = self.auth.get_user_by_req(request)
f = self.failureResultOf(d, MissingClientTokenError).value
self.assertEqual(f.code, 401)
self.assertEqual(f.errcode, "M_MISSING_TOKEN")
@defer.inlineCallbacks
def test_get_user_by_req_appservice_valid_token_valid_user_id(self):
masquerading_user_id = b"@doppelganger:matrix.org"
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app_service = Mock(
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token="foobar", url="a_url", sender=self.test_user, ip_range_whitelist=None
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)
app_service.is_interested_in_user = Mock(return_value=True)
self.store.get_app_service_by_token = Mock(return_value=app_service)
self.store.get_user_by_access_token = Mock(return_value=None)
request = Mock(args={})
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request.getClientIP.return_value = "127.0.0.1"
request.args[b"access_token"] = [self.test_token]
request.args[b"user_id"] = [masquerading_user_id]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
requester = yield self.auth.get_user_by_req(request)
self.assertEquals(
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requester.user.to_string(), masquerading_user_id.decode("utf8")
)
def test_get_user_by_req_appservice_valid_token_bad_user_id(self):
masquerading_user_id = b"@doppelganger:matrix.org"
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app_service = Mock(
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token="foobar", url="a_url", sender=self.test_user, ip_range_whitelist=None
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)
app_service.is_interested_in_user = Mock(return_value=False)
self.store.get_app_service_by_token = Mock(return_value=app_service)
self.store.get_user_by_access_token = Mock(return_value=None)
request = Mock(args={})
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request.getClientIP.return_value = "127.0.0.1"
request.args[b"access_token"] = [self.test_token]
request.args[b"user_id"] = [masquerading_user_id]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
d = self.auth.get_user_by_req(request)
self.failureResultOf(d, AuthError)
@defer.inlineCallbacks
def test_get_user_from_macaroon(self):
self.store.get_user_by_access_token = Mock(
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return_value={"name": "@baldrick:matrix.org", "device_id": "device"}
)
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user_id = "@baldrick:matrix.org"
macaroon = pymacaroons.Macaroon(
location=self.hs.config.server_name,
identifier="key",
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key=self.hs.config.macaroon_secret_key,
)
macaroon.add_first_party_caveat("gen = 1")
macaroon.add_first_party_caveat("type = access")
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macaroon.add_first_party_caveat("user_id = %s" % (user_id,))
user_info = yield self.auth.get_user_by_access_token(macaroon.serialize())
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user = user_info["user"]
self.assertEqual(UserID.from_string(user_id), user)
# TODO: device_id should come from the macaroon, but currently comes
# from the db.
self.assertEqual(user_info["device_id"], "device")
@defer.inlineCallbacks
def test_get_guest_user_from_macaroon(self):
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self.store.get_user_by_id = Mock(return_value={"is_guest": True})
self.store.get_user_by_access_token = Mock(return_value=None)
user_id = "@baldrick:matrix.org"
macaroon = pymacaroons.Macaroon(
location=self.hs.config.server_name,
identifier="key",
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key=self.hs.config.macaroon_secret_key,
)
macaroon.add_first_party_caveat("gen = 1")
macaroon.add_first_party_caveat("type = access")
macaroon.add_first_party_caveat("user_id = %s" % (user_id,))
macaroon.add_first_party_caveat("guest = true")
serialized = macaroon.serialize()
user_info = yield self.auth.get_user_by_access_token(serialized)
user = user_info["user"]
is_guest = user_info["is_guest"]
self.assertEqual(UserID.from_string(user_id), user)
self.assertTrue(is_guest)
self.store.get_user_by_id.assert_called_with(user_id)
@defer.inlineCallbacks
def test_cannot_use_regular_token_as_guest(self):
USER_ID = "@percy:matrix.org"
self.store.add_access_token_to_user = Mock()
token = yield self.hs.handlers.auth_handler.get_access_token_for_user_id(
USER_ID, "DEVICE", valid_until_ms=None
)
self.store.add_access_token_to_user.assert_called_with(
USER_ID, token, "DEVICE", None
)
def get_user(tok):
if token != tok:
return None
return {
"name": USER_ID,
"is_guest": False,
"token_id": 1234,
"device_id": "DEVICE",
}
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self.store.get_user_by_access_token = get_user
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self.store.get_user_by_id = Mock(return_value={"is_guest": False})
# check the token works
request = Mock(args={})
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request.args[b"access_token"] = [token.encode("ascii")]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()
requester = yield self.auth.get_user_by_req(request, allow_guest=True)
self.assertEqual(UserID.from_string(USER_ID), requester.user)
self.assertFalse(requester.is_guest)
# add an is_guest caveat
mac = pymacaroons.Macaroon.deserialize(token)
mac.add_first_party_caveat("guest = true")
guest_tok = mac.serialize()
# the token should *not* work now
request = Mock(args={})
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request.args[b"access_token"] = [guest_tok.encode("ascii")]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()
with self.assertRaises(InvalidClientCredentialsError) as cm:
yield self.auth.get_user_by_req(request, allow_guest=True)
self.assertEqual(401, cm.exception.code)
self.assertEqual("Guest access token used for regular user", cm.exception.msg)
self.store.get_user_by_id.assert_called_with(USER_ID)
@defer.inlineCallbacks
def test_blocking_mau(self):
self.hs.config.limit_usage_by_mau = False
self.hs.config.max_mau_value = 50
lots_of_users = 100
small_number_of_users = 1
# Ensure no error thrown
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yield self.auth.check_auth_blocking()
self.hs.config.limit_usage_by_mau = True
self.store.get_monthly_active_count = Mock(
return_value=defer.succeed(lots_of_users)
)
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with self.assertRaises(ResourceLimitError) as e:
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yield self.auth.check_auth_blocking()
self.assertEquals(e.exception.admin_contact, self.hs.config.admin_contact)
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self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
self.assertEquals(e.exception.code, 403)
# Ensure does not throw an error
self.store.get_monthly_active_count = Mock(
return_value=defer.succeed(small_number_of_users)
)
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yield self.auth.check_auth_blocking()
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@defer.inlineCallbacks
def test_blocking_mau__depending_on_user_type(self):
self.hs.config.max_mau_value = 50
self.hs.config.limit_usage_by_mau = True
self.store.get_monthly_active_count = Mock(return_value=defer.succeed(100))
# Support users allowed
yield self.auth.check_auth_blocking(user_type=UserTypes.SUPPORT)
self.store.get_monthly_active_count = Mock(return_value=defer.succeed(100))
# Bots not allowed
with self.assertRaises(ResourceLimitError):
yield self.auth.check_auth_blocking(user_type=UserTypes.BOT)
self.store.get_monthly_active_count = Mock(return_value=defer.succeed(100))
# Real users not allowed
with self.assertRaises(ResourceLimitError):
yield self.auth.check_auth_blocking()
@defer.inlineCallbacks
def test_reserved_threepid(self):
self.hs.config.limit_usage_by_mau = True
self.hs.config.max_mau_value = 1
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self.store.get_monthly_active_count = lambda: defer.succeed(2)
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threepid = {"medium": "email", "address": "reserved@server.com"}
unknown_threepid = {"medium": "email", "address": "unreserved@server.com"}
self.hs.config.mau_limits_reserved_threepids = [threepid]
yield self.store.register_user(user_id="user1", password_hash=None)
with self.assertRaises(ResourceLimitError):
yield self.auth.check_auth_blocking()
with self.assertRaises(ResourceLimitError):
yield self.auth.check_auth_blocking(threepid=unknown_threepid)
yield self.auth.check_auth_blocking(threepid=threepid)
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@defer.inlineCallbacks
def test_hs_disabled(self):
self.hs.config.hs_disabled = True
self.hs.config.hs_disabled_message = "Reason for being disabled"
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with self.assertRaises(ResourceLimitError) as e:
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yield self.auth.check_auth_blocking()
self.assertEquals(e.exception.admin_contact, self.hs.config.admin_contact)
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self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
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self.assertEquals(e.exception.code, 403)
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@defer.inlineCallbacks
def test_hs_disabled_no_server_notices_user(self):
"""Check that 'hs_disabled_message' works correctly when there is no
server_notices user.
"""
# this should be the default, but we had a bug where the test was doing the wrong
# thing, so let's make it explicit
self.hs.config.server_notices_mxid = None
self.hs.config.hs_disabled = True
self.hs.config.hs_disabled_message = "Reason for being disabled"
with self.assertRaises(ResourceLimitError) as e:
yield self.auth.check_auth_blocking()
self.assertEquals(e.exception.admin_contact, self.hs.config.admin_contact)
self.assertEquals(e.exception.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
self.assertEquals(e.exception.code, 403)
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@defer.inlineCallbacks
def test_server_notices_mxid_special_cased(self):
self.hs.config.hs_disabled = True
user = "@user:server"
self.hs.config.server_notices_mxid = user
self.hs.config.hs_disabled_message = "Reason for being disabled"
yield self.auth.check_auth_blocking(user)