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Merge pull request #3465 from matrix-org/matthew/as_ip_lock

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add ip_range_whitelist parameter to limit where ASes can connect from
This commit is contained in:
Matthew Hodgson 2018-06-28 21:15:06 +01:00 committed by GitHub
commit fc0e17b3e5
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5 changed files with 69 additions and 5 deletions
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1
changelog.d/3465.feature Normal file
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@ -0,0 +1 @@
Add optional ip_range_whitelist param to AS registration files to lock AS IP access

6
synapse/api/auth.py
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@ -19,6 +19,7 @@ from six import itervalues
import pymacaroons
from twisted.internet import defer
from netaddr import IPAddress
import synapse.types
from synapse import event_auth
@ -244,6 +245,11 @@ class Auth(object):
if app_service is None:
defer.returnValue((None, None))
if app_service.ip_range_whitelist:
ip_address = IPAddress(self.hs.get_ip_from_request(request))
if ip_address not in app_service.ip_range_whitelist:
defer.returnValue((None, None))
if "user_id" not in request.args:
defer.returnValue((app_service.sender, app_service))

4
synapse/appservice/__init__.py
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@ -85,7 +85,8 @@ class ApplicationService(object):
NS_LIST = [NS_USERS, NS_ALIASES, NS_ROOMS]
def __init__(self, token, hostname, url=None, namespaces=None, hs_token=None,
sender=None, id=None, protocols=None, rate_limited=True):
sender=None, id=None, protocols=None, rate_limited=True,
ip_range_whitelist=None):
self.token = token
self.url = url
self.hs_token = hs_token
@ -93,6 +94,7 @@ class ApplicationService(object):
self.server_name = hostname
self.namespaces = self._check_namespaces(namespaces)
self.id = id
self.ip_range_whitelist = ip_range_whitelist
if "|" in self.id:
raise Exception("application service ID cannot contain '|' character")

12
synapse/config/appservice.py
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@ -17,6 +17,8 @@ from ._base import Config, ConfigError
from synapse.appservice import ApplicationService
from synapse.types import UserID
from netaddr import IPSet
import yaml
import logging
@ -154,6 +156,13 @@ def _load_appservice(hostname, as_info, config_filename):
" will not receive events or queries.",
config_filename,
)
ip_range_whitelist = None
if as_info.get('ip_range_whitelist'):
ip_range_whitelist = IPSet(
as_info.get('ip_range_whitelist')
)
return ApplicationService(
token=as_info["as_token"],
hostname=hostname,
@ -163,5 +172,6 @@ def _load_appservice(hostname, as_info, config_filename):
sender=user_id,
id=as_info["id"],
protocols=protocols,
rate_limited=rate_limited
rate_limited=rate_limited,
ip_range_whitelist=ip_range_whitelist,
)

51
tests/api/test_auth.py
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@ -86,16 +86,53 @@ class AuthTestCase(unittest.TestCase):
@defer.inlineCallbacks
def test_get_user_by_req_appservice_valid_token(self):
app_service = Mock(token="foobar", url="a_url", sender=self.test_user)
app_service = Mock(
token="foobar", url="a_url", sender=self.test_user,
ip_range_whitelist=None,
)
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 = "127.0.0.1"
request.args["access_token"] = [self.test_token]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()
requester = yield self.auth.get_user_by_req(request)
self.assertEquals(requester.user.to_string(), self.test_user)
@defer.inlineCallbacks
def test_get_user_by_req_appservice_valid_token_good_ip(self):
from netaddr import IPSet
app_service = Mock(
token="foobar", url="a_url", sender=self.test_user,
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["access_token"] = [self.test_token]
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
app_service = Mock(
token="foobar", url="a_url", sender=self.test_user,
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["access_token"] = [self.test_token]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()
d = self.auth.get_user_by_req(request)
self.failureResultOf(d, AuthError)
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)
@ -119,12 +156,16 @@ class AuthTestCase(unittest.TestCase):
@defer.inlineCallbacks
def test_get_user_by_req_appservice_valid_token_valid_user_id(self):
masquerading_user_id = "@doppelganger:matrix.org"
app_service = Mock(token="foobar", url="a_url", sender=self.test_user)
app_service = Mock(
token="foobar", url="a_url", sender=self.test_user,
ip_range_whitelist=None,
)
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={})
request.getClientIP.return_value = "127.0.0.1"
request.args["access_token"] = [self.test_token]
request.args["user_id"] = [masquerading_user_id]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()
@ -133,12 +174,16 @@ class AuthTestCase(unittest.TestCase):
def test_get_user_by_req_appservice_valid_token_bad_user_id(self):
masquerading_user_id = "@doppelganger:matrix.org"
app_service = Mock(token="foobar", url="a_url", sender=self.test_user)
app_service = Mock(
token="foobar", url="a_url", sender=self.test_user,
ip_range_whitelist=None,
)
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={})
request.getClientIP.return_value = "127.0.0.1"
request.args["access_token"] = [self.test_token]
request.args["user_id"] = [masquerading_user_id]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()