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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 hashlib
import hmac
import json
from mock import Mock
from synapse.http.server import JsonResource
from synapse.rest.client.v1.admin import register_servlets
from synapse.util import Clock
from tests import unittest
from tests.server import (
ThreadedMemoryReactorClock,
make_request,
render,
setup_test_homeserver,
)
class UserRegisterTestCase(unittest.TestCase):
def setUp(self):
self.clock = ThreadedMemoryReactorClock()
self.hs_clock = Clock(self.clock)
self.url = "/_matrix/client/r0/admin/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=[])
self.secrets = Mock()
self.hs = setup_test_homeserver(
self.addCleanup, http_client=None, clock=self.hs_clock, reactor=self.clock
)
self.hs.config.registration_shared_secret = u"shared"
self.hs.get_media_repository = Mock()
self.hs.get_deactivate_account_handler = Mock()
self.resource = JsonResource(self.hs)
register_servlets(self.hs, self.resource)
def test_disabled(self):
"""
If there is no shared secret, registration through this method will be
prevented.
"""
self.hs.config.registration_shared_secret = None
request, channel = make_request("POST", self.url, b'{}')
render(request, self.resource, self.clock)
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)
request, channel = make_request("GET", self.url)
render(request, self.resource, self.clock)
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).
"""
request, channel = make_request("GET", self.url)
render(request, self.resource, self.clock)
nonce = channel.json_body["nonce"]
# 59 seconds
self.clock.advance(59)
body = json.dumps({"nonce": nonce})
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
self.assertEqual('username must be specified', channel.json_body["error"])
# 61 seconds
self.clock.advance(2)
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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.
"""
request, channel = make_request("GET", self.url)
render(request, self.resource, self.clock)
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,
}
)
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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.
"""
request, channel = make_request("GET", self.url)
render(request, self.resource, self.clock)
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,
}
)
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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.
"""
request, channel = make_request("GET", self.url)
render(request, self.resource, self.clock)
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,
}
)
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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 is optional. Additional checks are done for length and
type.
"""
def nonce():
request, channel = make_request("GET", self.url)
render(request, self.resource, self.clock)
return channel.json_body["nonce"]
#
# Nonce check
#
# Must be present
body = json.dumps({})
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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()})
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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})
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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": u"abcd\u0000"})
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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})
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
self.assertEqual('Invalid username', channel.json_body["error"])
#
# Username checks
#
# Must be present
body = json.dumps({"nonce": nonce(), "username": "a"})
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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})
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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": u"abcd\u0000"}
)
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
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})
request, channel = make_request("POST", self.url, body.encode('utf8'))
render(request, self.resource, self.clock)
self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
self.assertEqual('Invalid password', channel.json_body["error"])
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