test_user.py

# -*- 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 hashlib
import hmac
import json
import urllib.parse
from binascii import unhexlify
from typing import Optional

from mock import Mock

import synapse.rest.admin
from synapse.api.constants import UserTypes
from synapse.api.errors import Codes, HttpResponseException, ResourceLimitError
from synapse.api.room_versions import RoomVersions
from synapse.rest.client.v1 import login, logout, profile, room
from synapse.rest.client.v2_alpha import devices, sync

from tests import unittest
from tests.test_utils import make_awaitable
from tests.unittest import override_config


class UserRegisterTestCase(unittest.HomeserverTestCase):

    servlets = [
        synapse.rest.admin.register_servlets_for_client_rest_resource,
        profile.register_servlets,
    ]

    def make_homeserver(self, reactor, clock):

        self.url = "/_synapse/admin/v1/register"

        self.registration_handler = Mock()
        self.identity_handler = Mock()
        self.login_handler = Mock()
        self.device_handler = Mock()
        self.device_handler.check_device_registered = Mock(return_value="FAKE")

        self.datastore = Mock(return_value=Mock())
        self.datastore.get_current_state_deltas = Mock(return_value=(0, []))

        self.secrets = Mock()

        self.hs = self.setup_test_homeserver()

        self.hs.config.registration_shared_secret = "shared"

        self.hs.get_media_repository = Mock()
        self.hs.get_deactivate_account_handler = Mock()

        return self.hs

    def test_disabled(self):
        """
        If there is no shared secret, registration through this method will be
        prevented.
        """
        self.hs.config.registration_shared_secret = None

        channel = self.make_request("POST", self.url, b"{}")

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual(
            "Shared secret registration is not enabled", channel.json_body["error"]
        )

    def test_get_nonce(self):
        """
        Calling GET on the endpoint will return a randomised nonce, using the
        homeserver's secrets provider.
        """
        secrets = Mock()
        secrets.token_hex = Mock(return_value="abcd")

        self.hs.get_secrets = Mock(return_value=secrets)

        channel = self.make_request("GET", self.url)

        self.assertEqual(channel.json_body, {"nonce": "abcd"})

    def test_expired_nonce(self):
        """
        Calling GET on the endpoint will return a randomised nonce, which will
        only last for SALT_TIMEOUT (60s).
        """
        channel = self.make_request("GET", self.url)
        nonce = channel.json_body["nonce"]

        # 59 seconds
        self.reactor.advance(59)

        body = json.dumps({"nonce": nonce})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("username must be specified", channel.json_body["error"])

        # 61 seconds
        self.reactor.advance(2)

        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("unrecognised nonce", channel.json_body["error"])

    def test_register_incorrect_nonce(self):
        """
        Only the provided nonce can be used, as it's checked in the MAC.
        """
        channel = self.make_request("GET", self.url)
        nonce = channel.json_body["nonce"]

        want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
        want_mac.update(b"notthenonce\x00bob\x00abc123\x00admin")
        want_mac = want_mac.hexdigest()

        body = json.dumps(
            {
                "nonce": nonce,
                "username": "bob",
                "password": "abc123",
                "admin": True,
                "mac": want_mac,
            }
        )
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("HMAC incorrect", channel.json_body["error"])

    def test_register_correct_nonce(self):
        """
        When the correct nonce is provided, and the right key is provided, the
        user is registered.
        """
        channel = self.make_request("GET", self.url)
        nonce = channel.json_body["nonce"]

        want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
        want_mac.update(
            nonce.encode("ascii") + b"\x00bob\x00abc123\x00admin\x00support"
        )
        want_mac = want_mac.hexdigest()

        body = json.dumps(
            {
                "nonce": nonce,
                "username": "bob",
                "password": "abc123",
                "admin": True,
                "user_type": UserTypes.SUPPORT,
                "mac": want_mac,
            }
        )
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["user_id"])

    def test_nonce_reuse(self):
        """
        A valid unrecognised nonce.
        """
        channel = self.make_request("GET", self.url)
        nonce = channel.json_body["nonce"]

        want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
        want_mac.update(nonce.encode("ascii") + b"\x00bob\x00abc123\x00admin")
        want_mac = want_mac.hexdigest()

        body = json.dumps(
            {
                "nonce": nonce,
                "username": "bob",
                "password": "abc123",
                "admin": True,
                "mac": want_mac,
            }
        )
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["user_id"])

        # Now, try and reuse it
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("unrecognised nonce", channel.json_body["error"])

    def test_missing_parts(self):
        """
        Synapse will complain if you don't give nonce, username, password, and
        mac.  Admin and user_types are optional.  Additional checks are done for length
        and type.
        """

        def nonce():
            channel = self.make_request("GET", self.url)
            return channel.json_body["nonce"]

        #
        # Nonce check
        #

        # Must be present
        body = json.dumps({})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("nonce must be specified", channel.json_body["error"])

        #
        # Username checks
        #

        # Must be present
        body = json.dumps({"nonce": nonce()})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("username must be specified", channel.json_body["error"])

        # Must be a string
        body = json.dumps({"nonce": nonce(), "username": 1234})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("Invalid username", channel.json_body["error"])

        # Must not have null bytes
        body = json.dumps({"nonce": nonce(), "username": "abcd\u0000"})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("Invalid username", channel.json_body["error"])

        # Must not have null bytes
        body = json.dumps({"nonce": nonce(), "username": "a" * 1000})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("Invalid username", channel.json_body["error"])

        #
        # Password checks
        #

        # Must be present
        body = json.dumps({"nonce": nonce(), "username": "a"})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("password must be specified", channel.json_body["error"])

        # Must be a string
        body = json.dumps({"nonce": nonce(), "username": "a", "password": 1234})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("Invalid password", channel.json_body["error"])

        # Must not have null bytes
        body = json.dumps({"nonce": nonce(), "username": "a", "password": "abcd\u0000"})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("Invalid password", channel.json_body["error"])

        # Super long
        body = json.dumps({"nonce": nonce(), "username": "a", "password": "A" * 1000})
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("Invalid password", channel.json_body["error"])

        #
        # user_type check
        #

        # Invalid user_type
        body = json.dumps(
            {
                "nonce": nonce(),
                "username": "a",
                "password": "1234",
                "user_type": "invalid",
            }
        )
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("Invalid user type", channel.json_body["error"])

    def test_displayname(self):
        """
        Test that displayname of new user is set
        """

        # set no displayname
        channel = self.make_request("GET", self.url)
        nonce = channel.json_body["nonce"]

        want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
        want_mac.update(nonce.encode("ascii") + b"\x00bob1\x00abc123\x00notadmin")
        want_mac = want_mac.hexdigest()

        body = json.dumps(
            {"nonce": nonce, "username": "bob1", "password": "abc123", "mac": want_mac}
        )
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob1:test", channel.json_body["user_id"])

        channel = self.make_request("GET", "/profile/@bob1:test/displayname")
        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("bob1", channel.json_body["displayname"])

        # displayname is None
        channel = self.make_request("GET", self.url)
        nonce = channel.json_body["nonce"]

        want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
        want_mac.update(nonce.encode("ascii") + b"\x00bob2\x00abc123\x00notadmin")
        want_mac = want_mac.hexdigest()

        body = json.dumps(
            {
                "nonce": nonce,
                "username": "bob2",
                "displayname": None,
                "password": "abc123",
                "mac": want_mac,
            }
        )
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob2:test", channel.json_body["user_id"])

        channel = self.make_request("GET", "/profile/@bob2:test/displayname")
        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("bob2", channel.json_body["displayname"])

        # displayname is empty
        channel = self.make_request("GET", self.url)
        nonce = channel.json_body["nonce"]

        want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
        want_mac.update(nonce.encode("ascii") + b"\x00bob3\x00abc123\x00notadmin")
        want_mac = want_mac.hexdigest()

        body = json.dumps(
            {
                "nonce": nonce,
                "username": "bob3",
                "displayname": "",
                "password": "abc123",
                "mac": want_mac,
            }
        )
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob3:test", channel.json_body["user_id"])

        channel = self.make_request("GET", "/profile/@bob3:test/displayname")
        self.assertEqual(404, int(channel.result["code"]), msg=channel.result["body"])

        # set displayname
        channel = self.make_request("GET", self.url)
        nonce = channel.json_body["nonce"]

        want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
        want_mac.update(nonce.encode("ascii") + b"\x00bob4\x00abc123\x00notadmin")
        want_mac = want_mac.hexdigest()

        body = json.dumps(
            {
                "nonce": nonce,
                "username": "bob4",
                "displayname": "Bob's Name",
                "password": "abc123",
                "mac": want_mac,
            }
        )
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob4:test", channel.json_body["user_id"])

        channel = self.make_request("GET", "/profile/@bob4:test/displayname")
        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("Bob's Name", channel.json_body["displayname"])

    @override_config(
        {"limit_usage_by_mau": True, "max_mau_value": 2, "mau_trial_days": 0}
    )
    def test_register_mau_limit_reached(self):
        """
        Check we can register a user via the shared secret registration API
        even if the MAU limit is reached.
        """
        handler = self.hs.get_registration_handler()
        store = self.hs.get_datastore()

        # Set monthly active users to the limit
        store.get_monthly_active_count = Mock(
            return_value=make_awaitable(self.hs.config.max_mau_value)
        )
        # Check that the blocking of monthly active users is working as expected
        # The registration of a new user fails due to the limit
        self.get_failure(
            handler.register_user(localpart="local_part"), ResourceLimitError
        )

        # Register new user with admin API
        channel = self.make_request("GET", self.url)
        nonce = channel.json_body["nonce"]

        want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
        want_mac.update(
            nonce.encode("ascii") + b"\x00bob\x00abc123\x00admin\x00support"
        )
        want_mac = want_mac.hexdigest()

        body = json.dumps(
            {
                "nonce": nonce,
                "username": "bob",
                "password": "abc123",
                "admin": True,
                "user_type": UserTypes.SUPPORT,
                "mac": want_mac,
            }
        )
        channel = self.make_request("POST", self.url, body.encode("utf8"))

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["user_id"])


class UsersListTestCase(unittest.HomeserverTestCase):

    servlets = [
        synapse.rest.admin.register_servlets,
        login.register_servlets,
    ]
    url = "/_synapse/admin/v2/users"

    def prepare(self, reactor, clock, hs):
        self.admin_user = self.register_user("admin", "pass", admin=True)
        self.admin_user_tok = self.login("admin", "pass")

        self.user1 = self.register_user(
            "user1", "pass1", admin=False, displayname="Name 1"
        )
        self.user2 = self.register_user(
            "user2", "pass2", admin=False, displayname="Name 2"
        )

    def test_no_auth(self):
        """
        Try to list users without authentication.
        """
        channel = self.make_request("GET", self.url, b"{}")

        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])

    def test_requester_is_no_admin(self):
        """
        If the user is not a server admin, an error is returned.
        """
        other_user_token = self.login("user1", "pass1")

        channel = self.make_request("GET", self.url, access_token=other_user_token)

        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])

    def test_all_users(self):
        """
        List all users, including deactivated users.
        """
        channel = self.make_request(
            "GET",
            self.url + "?deactivated=true",
            b"{}",
            access_token=self.admin_user_tok,
        )

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual(3, len(channel.json_body["users"]))
        self.assertEqual(3, channel.json_body["total"])

        # Check that all fields are available
        for u in channel.json_body["users"]:
            self.assertIn("name", u)
            self.assertIn("is_guest", u)
            self.assertIn("admin", u)
            self.assertIn("user_type", u)
            self.assertIn("deactivated", u)
            self.assertIn("displayname", u)
            self.assertIn("avatar_url", u)

    def test_search_term(self):
        """Test that searching for a users works correctly"""

        def _search_test(
            expected_user_id: Optional[str],
            search_term: str,
            search_field: Optional[str] = "name",
            expected_http_code: Optional[int] = 200,
        ):
            """Search for a user and check that the returned user's id is a match

            Args:
                expected_user_id: The user_id expected to be returned by the API. Set
                    to None to expect zero results for the search
                search_term: The term to search for user names with
                search_field: Field which is to request: `name` or `user_id`
                expected_http_code: The expected http code for the request
            """
            url = self.url + "?%s=%s" % (search_field, search_term,)
            channel = self.make_request(
                "GET", url.encode("ascii"), access_token=self.admin_user_tok,
            )
            self.assertEqual(expected_http_code, channel.code, msg=channel.json_body)

            if expected_http_code != 200:
                return

            # Check that users were returned
            self.assertTrue("users" in channel.json_body)
            users = channel.json_body["users"]

            # Check that the expected number of users were returned
            expected_user_count = 1 if expected_user_id else 0
            self.assertEqual(len(users), expected_user_count)
            self.assertEqual(channel.json_body["total"], expected_user_count)

            if expected_user_id:
                # Check that the first returned user id is correct
                u = users[0]
                self.assertEqual(expected_user_id, u["name"])

        # Perform search tests
        _search_test(self.user1, "er1")
        _search_test(self.user1, "me 1")

        _search_test(self.user2, "er2")
        _search_test(self.user2, "me 2")

        _search_test(self.user1, "er1", "user_id")
        _search_test(self.user2, "er2", "user_id")

        # Test case insensitive
        _search_test(self.user1, "ER1")
        _search_test(self.user1, "NAME 1")

        _search_test(self.user2, "ER2")
        _search_test(self.user2, "NAME 2")

        _search_test(self.user1, "ER1", "user_id")
        _search_test(self.user2, "ER2", "user_id")

        _search_test(None, "foo")
        _search_test(None, "bar")

        _search_test(None, "foo", "user_id")
        _search_test(None, "bar", "user_id")


class UserRestTestCase(unittest.HomeserverTestCase):

    servlets = [
        synapse.rest.admin.register_servlets,
        login.register_servlets,
        sync.register_servlets,
    ]

    def prepare(self, reactor, clock, hs):
        self.store = hs.get_datastore()

        self.admin_user = self.register_user("admin", "pass", admin=True)
        self.admin_user_tok = self.login("admin", "pass")

        self.other_user = self.register_user("user", "pass", displayname="User")
        self.other_user_token = self.login("user", "pass")
        self.url_other_user = "/_synapse/admin/v2/users/%s" % urllib.parse.quote(
            self.other_user
        )

    def test_requester_is_no_admin(self):
        """
        If the user is not a server admin, an error is returned.
        """
        url = "/_synapse/admin/v2/users/@bob:test"

        channel = self.make_request("GET", url, access_token=self.other_user_token,)

        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("You are not a server admin", channel.json_body["error"])

        channel = self.make_request(
            "PUT", url, access_token=self.other_user_token, content=b"{}",
        )

        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("You are not a server admin", channel.json_body["error"])

    def test_user_does_not_exist(self):
        """
        Tests that a lookup for a user that does not exist returns a 404
        """

        channel = self.make_request(
            "GET",
            "/_synapse/admin/v2/users/@unknown_person:test",
            access_token=self.admin_user_tok,
        )

        self.assertEqual(404, channel.code, msg=channel.json_body)
        self.assertEqual("M_NOT_FOUND", channel.json_body["errcode"])

    def test_create_server_admin(self):
        """
        Check that a new admin user is created successfully.
        """
        url = "/_synapse/admin/v2/users/@bob:test"

        # Create user (server admin)
        body = json.dumps(
            {
                "password": "abc123",
                "admin": True,
                "displayname": "Bob's name",
                "threepids": [{"medium": "email", "address": "bob@bob.bob"}],
                "avatar_url": "mxc://fibble/wibble",
            }
        )

        channel = self.make_request(
            "PUT",
            url,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["name"])
        self.assertEqual("Bob's name", channel.json_body["displayname"])
        self.assertEqual("email", channel.json_body["threepids"][0]["medium"])
        self.assertEqual("bob@bob.bob", channel.json_body["threepids"][0]["address"])
        self.assertEqual(True, channel.json_body["admin"])
        self.assertEqual("mxc://fibble/wibble", channel.json_body["avatar_url"])

        # Get user
        channel = self.make_request("GET", url, access_token=self.admin_user_tok,)

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["name"])
        self.assertEqual("Bob's name", channel.json_body["displayname"])
        self.assertEqual("email", channel.json_body["threepids"][0]["medium"])
        self.assertEqual("bob@bob.bob", channel.json_body["threepids"][0]["address"])
        self.assertEqual(True, channel.json_body["admin"])
        self.assertEqual(False, channel.json_body["is_guest"])
        self.assertEqual(False, channel.json_body["deactivated"])
        self.assertEqual("mxc://fibble/wibble", channel.json_body["avatar_url"])

    def test_create_user(self):
        """
        Check that a new regular user is created successfully.
        """
        url = "/_synapse/admin/v2/users/@bob:test"

        # Create user
        body = json.dumps(
            {
                "password": "abc123",
                "admin": False,
                "displayname": "Bob's name",
                "threepids": [{"medium": "email", "address": "bob@bob.bob"}],
                "avatar_url": "mxc://fibble/wibble",
            }
        )

        channel = self.make_request(
            "PUT",
            url,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["name"])
        self.assertEqual("Bob's name", channel.json_body["displayname"])
        self.assertEqual("email", channel.json_body["threepids"][0]["medium"])
        self.assertEqual("bob@bob.bob", channel.json_body["threepids"][0]["address"])
        self.assertEqual(False, channel.json_body["admin"])
        self.assertEqual("mxc://fibble/wibble", channel.json_body["avatar_url"])

        # Get user
        channel = self.make_request("GET", url, access_token=self.admin_user_tok,)

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["name"])
        self.assertEqual("Bob's name", channel.json_body["displayname"])
        self.assertEqual("email", channel.json_body["threepids"][0]["medium"])
        self.assertEqual("bob@bob.bob", channel.json_body["threepids"][0]["address"])
        self.assertEqual(False, channel.json_body["admin"])
        self.assertEqual(False, channel.json_body["is_guest"])
        self.assertEqual(False, channel.json_body["deactivated"])
        self.assertEqual("mxc://fibble/wibble", channel.json_body["avatar_url"])

    @override_config(
        {"limit_usage_by_mau": True, "max_mau_value": 2, "mau_trial_days": 0}
    )
    def test_create_user_mau_limit_reached_active_admin(self):
        """
        Check that an admin can register a new user via the admin API
        even if the MAU limit is reached.
        Admin user was active before creating user.
        """

        handler = self.hs.get_registration_handler()

        # Sync to set admin user to active
        # before limit of monthly active users is reached
        channel = self.make_request("GET", "/sync", access_token=self.admin_user_tok)

        if channel.code != 200:
            raise HttpResponseException(
                channel.code, channel.result["reason"], channel.result["body"]
            )

        # Set monthly active users to the limit
        self.store.get_monthly_active_count = Mock(
            return_value=make_awaitable(self.hs.config.max_mau_value)
        )
        # Check that the blocking of monthly active users is working as expected
        # The registration of a new user fails due to the limit
        self.get_failure(
            handler.register_user(localpart="local_part"), ResourceLimitError
        )

        # Register new user with admin API
        url = "/_synapse/admin/v2/users/@bob:test"

        # Create user
        body = json.dumps({"password": "abc123", "admin": False})

        channel = self.make_request(
            "PUT",
            url,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["name"])
        self.assertEqual(False, channel.json_body["admin"])

    @override_config(
        {"limit_usage_by_mau": True, "max_mau_value": 2, "mau_trial_days": 0}
    )
    def test_create_user_mau_limit_reached_passive_admin(self):
        """
        Check that an admin can register a new user via the admin API
        even if the MAU limit is reached.
        Admin user was not active before creating user.
        """

        handler = self.hs.get_registration_handler()

        # Set monthly active users to the limit
        self.store.get_monthly_active_count = Mock(
            return_value=make_awaitable(self.hs.config.max_mau_value)
        )
        # Check that the blocking of monthly active users is working as expected
        # The registration of a new user fails due to the limit
        self.get_failure(
            handler.register_user(localpart="local_part"), ResourceLimitError
        )

        # Register new user with admin API
        url = "/_synapse/admin/v2/users/@bob:test"

        # Create user
        body = json.dumps({"password": "abc123", "admin": False})

        channel = self.make_request(
            "PUT",
            url,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        # Admin user is not blocked by mau anymore
        self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["name"])
        self.assertEqual(False, channel.json_body["admin"])

    @override_config(
        {
            "email": {
                "enable_notifs": True,
                "notif_for_new_users": True,
                "notif_from": "test@example.com",
            },
            "public_baseurl": "https://example.com",
        }
    )
    def test_create_user_email_notif_for_new_users(self):
        """
        Check that a new regular user is created successfully and
        got an email pusher.
        """
        url = "/_synapse/admin/v2/users/@bob:test"

        # Create user
        body = json.dumps(
            {
                "password": "abc123",
                "threepids": [{"medium": "email", "address": "bob@bob.bob"}],
            }
        )

        channel = self.make_request(
            "PUT",
            url,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["name"])
        self.assertEqual("email", channel.json_body["threepids"][0]["medium"])
        self.assertEqual("bob@bob.bob", channel.json_body["threepids"][0]["address"])

        pushers = self.get_success(
            self.store.get_pushers_by({"user_name": "@bob:test"})
        )
        pushers = list(pushers)
        self.assertEqual(len(pushers), 1)
        self.assertEqual("@bob:test", pushers[0].user_name)

    @override_config(
        {
            "email": {
                "enable_notifs": False,
                "notif_for_new_users": False,
                "notif_from": "test@example.com",
            },
            "public_baseurl": "https://example.com",
        }
    )
    def test_create_user_email_no_notif_for_new_users(self):
        """
        Check that a new regular user is created successfully and
        got not an email pusher.
        """
        url = "/_synapse/admin/v2/users/@bob:test"

        # Create user
        body = json.dumps(
            {
                "password": "abc123",
                "threepids": [{"medium": "email", "address": "bob@bob.bob"}],
            }
        )

        channel = self.make_request(
            "PUT",
            url,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@bob:test", channel.json_body["name"])
        self.assertEqual("email", channel.json_body["threepids"][0]["medium"])
        self.assertEqual("bob@bob.bob", channel.json_body["threepids"][0]["address"])

        pushers = self.get_success(
            self.store.get_pushers_by({"user_name": "@bob:test"})
        )
        pushers = list(pushers)
        self.assertEqual(len(pushers), 0)

    def test_set_password(self):
        """
        Test setting a new password for another user.
        """

        # Change password
        body = json.dumps({"password": "hahaha"})

        channel = self.make_request(
            "PUT",
            self.url_other_user,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])

    def test_set_displayname(self):
        """
        Test setting the displayname of another user.
        """

        # Modify user
        body = json.dumps({"displayname": "foobar"})

        channel = self.make_request(
            "PUT",
            self.url_other_user,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@user:test", channel.json_body["name"])
        self.assertEqual("foobar", channel.json_body["displayname"])

        # Get user
        channel = self.make_request(
            "GET", self.url_other_user, access_token=self.admin_user_tok,
        )

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@user:test", channel.json_body["name"])
        self.assertEqual("foobar", channel.json_body["displayname"])

    def test_set_threepid(self):
        """
        Test setting threepid for an other user.
        """

        # Delete old and add new threepid to user
        body = json.dumps(
            {"threepids": [{"medium": "email", "address": "bob3@bob.bob"}]}
        )

        channel = self.make_request(
            "PUT",
            self.url_other_user,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@user:test", channel.json_body["name"])
        self.assertEqual("email", channel.json_body["threepids"][0]["medium"])
        self.assertEqual("bob3@bob.bob", channel.json_body["threepids"][0]["address"])

        # Get user
        channel = self.make_request(
            "GET", self.url_other_user, access_token=self.admin_user_tok,
        )

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
        self.assertEqual("@user:test", channel.json_body["name"])
        self.assertEqual("email", channel.json_body["threepids"][0]["medium"])
        self.assertEqual("bob3@bob.bob", channel.json_body["threepids"][0]["address"])

    def test_deactivate_user(self):
        """
        Test deactivating another user.
        """

        # Deactivate user
        body = json.dumps({"deactivated": True})

        channel = self.make_request(
            "PUT",
            self.url_other_user,
            access_token=self.admin_user_tok,
            content=body.encode(encoding="utf_8"),
        )

        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])