diff --git a/.dockerignore b/.dockerignore
index 6cdb8532d3..0180602e56 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -3,6 +3,5 @@ Dockerfile
.gitignore
demo/etc
tox.ini
-synctl
.git/*
.tox/*
diff --git a/.gitignore b/.gitignore
index 9f42a7568f..1718185384 100644
--- a/.gitignore
+++ b/.gitignore
@@ -44,6 +44,7 @@ media_store/
build/
venv/
venv*/
+*venv/
localhost-800*/
static/client/register/register_config.js
diff --git a/CHANGES.md b/CHANGES.md
index a35f5aebc7..59feb6b1a7 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,17 @@
+Synapse 0.33.3.1 (2018-09-06)
+=============================
+
+SECURITY FIXES
+--------------
+
+- Fix an issue where event signatures were not always correctly validated ([\#3796](https://github.com/matrix-org/synapse/issues/3796))
+- Fix an issue where server_acls could be circumvented for incoming events ([\#3796](https://github.com/matrix-org/synapse/issues/3796))
+
+Internal Changes
+----------------
+
+- Unignore synctl in .dockerignore to fix docker builds ([\#3802](https://github.com/matrix-org/synapse/issues/3802))
+
Synapse 0.33.3 (2018-08-22)
===========================
diff --git a/changelog.d/3803.misc b/changelog.d/3803.misc
new file mode 100644
index 0000000000..2b60653c29
--- /dev/null
+++ b/changelog.d/3803.misc
@@ -0,0 +1 @@
+handlers/ is now ported to Python 3.
diff --git a/synapse/__init__.py b/synapse/__init__.py
index e62901b761..e395a0a9ee 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -17,4 +17,4 @@
""" This is a reference implementation of a Matrix home server.
"""
-__version__ = "0.33.3"
+__version__ = "0.33.3.1"
diff --git a/synapse/federation/federation_base.py b/synapse/federation/federation_base.py
index c11798093d..5be8e66fb8 100644
--- a/synapse/federation/federation_base.py
+++ b/synapse/federation/federation_base.py
@@ -13,17 +13,20 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
+from collections import namedtuple
import six
from twisted.internet import defer
+from twisted.internet.defer import DeferredList
-from synapse.api.constants import MAX_DEPTH
+from synapse.api.constants import MAX_DEPTH, EventTypes, Membership
from synapse.api.errors import Codes, SynapseError
from synapse.crypto.event_signing import check_event_content_hash
from synapse.events import FrozenEvent
from synapse.events.utils import prune_event
from synapse.http.servlet import assert_params_in_dict
+from synapse.types import get_domain_from_id
from synapse.util import logcontext, unwrapFirstError
logger = logging.getLogger(__name__)
@@ -133,34 +136,25 @@ class FederationBase(object):
* throws a SynapseError if the signature check failed.
The deferreds run their callbacks in the sentinel logcontext.
"""
-
- redacted_pdus = [
- prune_event(pdu)
- for pdu in pdus
- ]
-
- deferreds = self.keyring.verify_json_objects_for_server([
- (p.origin, p.get_pdu_json())
- for p in redacted_pdus
- ])
+ deferreds = _check_sigs_on_pdus(self.keyring, pdus)
ctx = logcontext.LoggingContext.current_context()
- def callback(_, pdu, redacted):
+ def callback(_, pdu):
with logcontext.PreserveLoggingContext(ctx):
if not check_event_content_hash(pdu):
logger.warn(
"Event content has been tampered, redacting %s: %s",
pdu.event_id, pdu.get_pdu_json()
)
- return redacted
+ return prune_event(pdu)
if self.spam_checker.check_event_for_spam(pdu):
logger.warn(
"Event contains spam, redacting %s: %s",
pdu.event_id, pdu.get_pdu_json()
)
- return redacted
+ return prune_event(pdu)
return pdu
@@ -173,16 +167,116 @@ class FederationBase(object):
)
return failure
- for deferred, pdu, redacted in zip(deferreds, pdus, redacted_pdus):
+ for deferred, pdu in zip(deferreds, pdus):
deferred.addCallbacks(
callback, errback,
- callbackArgs=[pdu, redacted],
+ callbackArgs=[pdu],
errbackArgs=[pdu],
)
return deferreds
+class PduToCheckSig(namedtuple("PduToCheckSig", [
+ "pdu", "redacted_pdu_json", "event_id_domain", "sender_domain", "deferreds",
+])):
+ pass
+
+
+def _check_sigs_on_pdus(keyring, pdus):
+ """Check that the given events are correctly signed
+
+ Args:
+ keyring (synapse.crypto.Keyring): keyring object to do the checks
+ pdus (Collection[EventBase]): the events to be checked
+
+ Returns:
+ List[Deferred]: a Deferred for each event in pdus, which will either succeed if
+ the signatures are valid, or fail (with a SynapseError) if not.
+ """
+
+ # (currently this is written assuming the v1 room structure; we'll probably want a
+ # separate function for checking v2 rooms)
+
+ # we want to check that the event is signed by:
+ #
+ # (a) the server which created the event_id
+ #
+ # (b) the sender's server.
+ #
+ # - except in the case of invites created from a 3pid invite, which are exempt
+ # from this check, because the sender has to match that of the original 3pid
+ # invite, but the event may come from a different HS, for reasons that I don't
+ # entirely grok (why do the senders have to match? and if they do, why doesn't the
+ # joining server ask the inviting server to do the switcheroo with
+ # exchange_third_party_invite?).
+ #
+ # That's pretty awful, since redacting such an invite will render it invalid
+ # (because it will then look like a regular invite without a valid signature),
+ # and signatures are *supposed* to be valid whether or not an event has been
+ # redacted. But this isn't the worst of the ways that 3pid invites are broken.
+ #
+ # let's start by getting the domain for each pdu, and flattening the event back
+ # to JSON.
+ pdus_to_check = [
+ PduToCheckSig(
+ pdu=p,
+ redacted_pdu_json=prune_event(p).get_pdu_json(),
+ event_id_domain=get_domain_from_id(p.event_id),
+ sender_domain=get_domain_from_id(p.sender),
+ deferreds=[],
+ )
+ for p in pdus
+ ]
+
+ # first make sure that the event is signed by the event_id's domain
+ deferreds = keyring.verify_json_objects_for_server([
+ (p.event_id_domain, p.redacted_pdu_json)
+ for p in pdus_to_check
+ ])
+
+ for p, d in zip(pdus_to_check, deferreds):
+ p.deferreds.append(d)
+
+ # now let's look for events where the sender's domain is different to the
+ # event id's domain (normally only the case for joins/leaves), and add additional
+ # checks.
+ pdus_to_check_sender = [
+ p for p in pdus_to_check
+ if p.sender_domain != p.event_id_domain and not _is_invite_via_3pid(p.pdu)
+ ]
+
+ more_deferreds = keyring.verify_json_objects_for_server([
+ (p.sender_domain, p.redacted_pdu_json)
+ for p in pdus_to_check_sender
+ ])
+
+ for p, d in zip(pdus_to_check_sender, more_deferreds):
+ p.deferreds.append(d)
+
+ # replace lists of deferreds with single Deferreds
+ return [_flatten_deferred_list(p.deferreds) for p in pdus_to_check]
+
+
+def _flatten_deferred_list(deferreds):
+ """Given a list of one or more deferreds, either return the single deferred, or
+ combine into a DeferredList.
+ """
+ if len(deferreds) > 1:
+ return DeferredList(deferreds, fireOnOneErrback=True, consumeErrors=True)
+ else:
+ assert len(deferreds) == 1
+ return deferreds[0]
+
+
+def _is_invite_via_3pid(event):
+ return (
+ event.type == EventTypes.Member
+ and event.membership == Membership.INVITE
+ and "third_party_invite" in event.content
+ )
+
+
def event_from_pdu_json(pdu_json, outlier=False):
"""Construct a FrozenEvent from an event json received over federation
diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index 6e52c4b6b5..dbee404ea7 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -99,7 +99,7 @@ class FederationServer(FederationBase):
@defer.inlineCallbacks
@log_function
- def on_incoming_transaction(self, transaction_data):
+ def on_incoming_transaction(self, origin, transaction_data):
# keep this as early as possible to make the calculated origin ts as
# accurate as possible.
request_time = self._clock.time_msec()
@@ -108,34 +108,33 @@ class FederationServer(FederationBase):
if not transaction.transaction_id:
raise Exception("Transaction missing transaction_id")
- if not transaction.origin:
- raise Exception("Transaction missing origin")
logger.debug("[%s] Got transaction", transaction.transaction_id)
# use a linearizer to ensure that we don't process the same transaction
# multiple times in parallel.
with (yield self._transaction_linearizer.queue(
- (transaction.origin, transaction.transaction_id),
+ (origin, transaction.transaction_id),
)):
result = yield self._handle_incoming_transaction(
- transaction, request_time,
+ origin, transaction, request_time,
)
defer.returnValue(result)
@defer.inlineCallbacks
- def _handle_incoming_transaction(self, transaction, request_time):
+ def _handle_incoming_transaction(self, origin, transaction, request_time):
""" Process an incoming transaction and return the HTTP response
Args:
+ origin (unicode): the server making the request
transaction (Transaction): incoming transaction
request_time (int): timestamp that the HTTP request arrived at
Returns:
Deferred[(int, object)]: http response code and body
"""
- response = yield self.transaction_actions.have_responded(transaction)
+ response = yield self.transaction_actions.have_responded(origin, transaction)
if response:
logger.debug(
@@ -149,7 +148,7 @@ class FederationServer(FederationBase):
received_pdus_counter.inc(len(transaction.pdus))
- origin_host, _ = parse_server_name(transaction.origin)
+ origin_host, _ = parse_server_name(origin)
pdus_by_room = {}
@@ -190,7 +189,7 @@ class FederationServer(FederationBase):
event_id = pdu.event_id
try:
yield self._handle_received_pdu(
- transaction.origin, pdu
+ origin, pdu
)
pdu_results[event_id] = {}
except FederationError as e:
@@ -212,7 +211,7 @@ class FederationServer(FederationBase):
if hasattr(transaction, "edus"):
for edu in (Edu(**x) for x in transaction.edus):
yield self.received_edu(
- transaction.origin,
+ origin,
edu.edu_type,
edu.content
)
@@ -224,6 +223,7 @@ class FederationServer(FederationBase):
logger.debug("Returning: %s", str(response))
yield self.transaction_actions.set_response(
+ origin,
transaction,
200, response
)
diff --git a/synapse/federation/persistence.py b/synapse/federation/persistence.py
index 9146215c21..74ffd13b4f 100644
--- a/synapse/federation/persistence.py
+++ b/synapse/federation/persistence.py
@@ -36,7 +36,7 @@ class TransactionActions(object):
self.store = datastore
@log_function
- def have_responded(self, transaction):
+ def have_responded(self, origin, transaction):
""" Have we already responded to a transaction with the same id and
origin?
@@ -50,11 +50,11 @@ class TransactionActions(object):
"transaction_id")
return self.store.get_received_txn_response(
- transaction.transaction_id, transaction.origin
+ transaction.transaction_id, origin
)
@log_function
- def set_response(self, transaction, code, response):
+ def set_response(self, origin, transaction, code, response):
""" Persist how we responded to a transaction.
Returns:
@@ -66,7 +66,7 @@ class TransactionActions(object):
return self.store.set_received_txn_response(
transaction.transaction_id,
- transaction.origin,
+ origin,
code,
response,
)
diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py
index 7a993fd1cf..3972922ff9 100644
--- a/synapse/federation/transport/server.py
+++ b/synapse/federation/transport/server.py
@@ -353,7 +353,7 @@ class FederationSendServlet(BaseFederationServlet):
try:
code, response = yield self.handler.on_incoming_transaction(
- transaction_data
+ origin, transaction_data,
)
except Exception:
logger.exception("on_incoming_transaction failed")
diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py
index 4a81bd2ba9..2a5eab124f 100644
--- a/synapse/handlers/auth.py
+++ b/synapse/handlers/auth.py
@@ -895,22 +895,24 @@ class AuthHandler(BaseHandler):
Args:
password (unicode): Password to hash.
- stored_hash (unicode): Expected hash value.
+ stored_hash (bytes): Expected hash value.
Returns:
Deferred(bool): Whether self.hash(password) == stored_hash.
"""
-
def _do_validate_hash():
# Normalise the Unicode in the password
pw = unicodedata.normalize("NFKC", password)
return bcrypt.checkpw(
pw.encode('utf8') + self.hs.config.password_pepper.encode("utf8"),
- stored_hash.encode('utf8')
+ stored_hash
)
if stored_hash:
+ if not isinstance(stored_hash, bytes):
+ stored_hash = stored_hash.encode('ascii')
+
return make_deferred_yieldable(
threads.deferToThreadPool(
self.hs.get_reactor(),
diff --git a/synapse/handlers/e2e_keys.py b/synapse/handlers/e2e_keys.py
index 5816bf8b4f..578e9250fb 100644
--- a/synapse/handlers/e2e_keys.py
+++ b/synapse/handlers/e2e_keys.py
@@ -330,7 +330,8 @@ class E2eKeysHandler(object):
(algorithm, key_id, ex_json, key)
)
else:
- new_keys.append((algorithm, key_id, encode_canonical_json(key)))
+ new_keys.append((
+ algorithm, key_id, encode_canonical_json(key).decode('ascii')))
yield self.store.add_e2e_one_time_keys(
user_id, device_id, time_now, new_keys
@@ -358,7 +359,7 @@ def _exception_to_failure(e):
# Note that some Exceptions (notably twisted's ResponseFailed etc) don't
# give a string for e.message, which json then fails to serialize.
return {
- "status": 503, "message": str(e.message),
+ "status": 503, "message": str(e),
}
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index 3fa7a98445..0c68e8a472 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -594,7 +594,7 @@ class FederationHandler(BaseHandler):
required_auth = set(
a_id
- for event in events + state_events.values() + auth_events.values()
+ for event in events + list(state_events.values()) + list(auth_events.values())
for a_id, _ in event.auth_events
)
auth_events.update({
@@ -802,7 +802,7 @@ class FederationHandler(BaseHandler):
)
continue
except NotRetryingDestination as e:
- logger.info(e.message)
+ logger.info(str(e))
continue
except FederationDeniedError as e:
logger.info(e)
@@ -1358,7 +1358,7 @@ class FederationHandler(BaseHandler):
)
if state_groups:
- _, state = state_groups.items().pop()
+ _, state = list(state_groups.items()).pop()
results = state
if event.is_state():
diff --git a/synapse/handlers/room_list.py b/synapse/handlers/room_list.py
index 37e41afd61..38e1737ec9 100644
--- a/synapse/handlers/room_list.py
+++ b/synapse/handlers/room_list.py
@@ -162,7 +162,7 @@ class RoomListHandler(BaseHandler):
# Filter out rooms that we don't want to return
rooms_to_scan = [
r for r in sorted_rooms
- if r not in newly_unpublished and rooms_to_num_joined[room_id] > 0
+ if r not in newly_unpublished and rooms_to_num_joined[r] > 0
]
total_room_count = len(rooms_to_scan)
diff --git a/synapse/handlers/search.py b/synapse/handlers/search.py
index c464adbd0b..0c1d52fd11 100644
--- a/synapse/handlers/search.py
+++ b/synapse/handlers/search.py
@@ -54,7 +54,7 @@ class SearchHandler(BaseHandler):
batch_token = None
if batch:
try:
- b = decode_base64(batch)
+ b = decode_base64(batch).decode('ascii')
batch_group, batch_group_key, batch_token = b.split("\n")
assert batch_group is not None
@@ -258,18 +258,18 @@ class SearchHandler(BaseHandler):
# it returns more from the same group (if applicable) rather
# than reverting to searching all results again.
if batch_group and batch_group_key:
- global_next_batch = encode_base64("%s\n%s\n%s" % (
+ global_next_batch = encode_base64(("%s\n%s\n%s" % (
batch_group, batch_group_key, pagination_token
- ))
+ )).encode('ascii'))
else:
- global_next_batch = encode_base64("%s\n%s\n%s" % (
+ global_next_batch = encode_base64(("%s\n%s\n%s" % (
"all", "", pagination_token
- ))
+ )).encode('ascii'))
for room_id, group in room_groups.items():
- group["next_batch"] = encode_base64("%s\n%s\n%s" % (
+ group["next_batch"] = encode_base64(("%s\n%s\n%s" % (
"room_id", room_id, pagination_token
- ))
+ )).encode('ascii'))
allowed_events.extend(room_events)
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index ef20c2296c..0091ceb80e 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -545,7 +545,7 @@ class SyncHandler(object):
member_ids = {
state_key: event_id
- for (t, state_key), event_id in state_ids.iteritems()
+ for (t, state_key), event_id in iteritems(state_ids)
if t == EventTypes.Member
}
name_id = state_ids.get((EventTypes.Name, ''))
@@ -774,7 +774,7 @@ class SyncHandler(object):
logger.debug("filtering state from %r...", state_ids)
state_ids = {
t: event_id
- for t, event_id in state_ids.iteritems()
+ for t, event_id in iteritems(state_ids)
if cache.get(t[1]) != event_id
}
logger.debug("...to %r", state_ids)
@@ -1753,7 +1753,7 @@ def _calculate_state(
if lazy_load_members:
p_ids.difference_update(
- e for t, e in timeline_start.iteritems()
+ e for t, e in iteritems(timeline_start)
if t[0] == EventTypes.Member
)
diff --git a/tests/handlers/test_typing.py b/tests/handlers/test_typing.py
index ad58073a14..c2d951b45f 100644
--- a/tests/handlers/test_typing.py
+++ b/tests/handlers/test_typing.py
@@ -33,7 +33,7 @@ from ..utils import (
)
-def _expect_edu(destination, edu_type, content, origin="test"):
+def _expect_edu_transaction(edu_type, content, origin="test"):
return {
"origin": origin,
"origin_server_ts": 1000000,
@@ -42,8 +42,8 @@ def _expect_edu(destination, edu_type, content, origin="test"):
}
-def _make_edu_json(origin, edu_type, content):
- return json.dumps(_expect_edu("test", edu_type, content, origin=origin)).encode(
+def _make_edu_transaction_json(edu_type, content):
+ return json.dumps(_expect_edu_transaction(edu_type, content)).encode(
'utf8'
)
@@ -190,8 +190,7 @@ class TypingNotificationsTestCase(unittest.TestCase):
call(
"farm",
path="/_matrix/federation/v1/send/1000000/",
- data=_expect_edu(
- "farm",
+ data=_expect_edu_transaction(
"m.typing",
content={
"room_id": self.room_id,
@@ -221,11 +220,10 @@ class TypingNotificationsTestCase(unittest.TestCase):
self.assertEquals(self.event_source.get_current_key(), 0)
- yield self.mock_federation_resource.trigger(
+ (code, response) = yield self.mock_federation_resource.trigger(
"PUT",
"/_matrix/federation/v1/send/1000000/",
- _make_edu_json(
- "farm",
+ _make_edu_transaction_json(
"m.typing",
content={
"room_id": self.room_id,
@@ -233,7 +231,7 @@ class TypingNotificationsTestCase(unittest.TestCase):
"typing": True,
},
),
- federation_auth=True,
+ federation_auth_origin=b'farm',
)
self.on_new_event.assert_has_calls(
@@ -264,8 +262,7 @@ class TypingNotificationsTestCase(unittest.TestCase):
call(
"farm",
path="/_matrix/federation/v1/send/1000000/",
- data=_expect_edu(
- "farm",
+ data=_expect_edu_transaction(
"m.typing",
content={
"room_id": self.room_id,
diff --git a/tests/utils.py b/tests/utils.py
index 114470d641..b85017d279 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -321,7 +321,10 @@ class MockHttpResource(HttpServer):
@patch('twisted.web.http.Request')
@defer.inlineCallbacks
- def trigger(self, http_method, path, content, mock_request, federation_auth=False):
+ def trigger(
+ self, http_method, path, content, mock_request,
+ federation_auth_origin=None,
+ ):
""" Fire an HTTP event.
Args:
@@ -330,6 +333,7 @@ class MockHttpResource(HttpServer):
content : The HTTP body
mock_request : Mocked request to pass to the event so it can get
content.
+ federation_auth_origin (bytes|None): domain to authenticate as, for federation
Returns:
A tuple of (code, response)
Raises:
@@ -350,8 +354,10 @@ class MockHttpResource(HttpServer):
mock_request.getClientIP.return_value = "-"
headers = {}
- if federation_auth:
- headers[b"Authorization"] = [b"X-Matrix origin=test,key=,sig="]
+ if federation_auth_origin is not None:
+ headers[b"Authorization"] = [
+ b"X-Matrix origin=%s,key=,sig=" % (federation_auth_origin, )
+ ]
mock_request.requestHeaders.getRawHeaders = mock_getRawHeaders(headers)
# return the right path if the event requires it
|
