Merge tag 'v1.10.0'

Synapse 1.10.0 (2020-02-12)
===========================

**WARNING to client developers**: As of this release Synapse validates `client_secret` parameters in the Client-Server API as per the spec. See [\#6766](https://github.com/matrix-org/synapse/issues/6766) for details.

Updates to the Docker image
---------------------------

- Update the docker images to Alpine Linux 3.11. ([\#6897](https://github.com/matrix-org/synapse/issues/6897))

Synapse 1.10.0rc5 (2020-02-11)
==============================

Bugfixes
--------

- Fix the filtering introduced in 1.10.0rc3 to also apply to the state blocks returned by `/sync`. ([\#6884](https://github.com/matrix-org/synapse/issues/6884))

Synapse 1.10.0rc4 (2020-02-11)
==============================

This release candidate was built incorrectly and is superceded by 1.10.0rc5.

Synapse 1.10.0rc3 (2020-02-10)
==============================

Features
--------

- Filter out `m.room.aliases` from the CS API to mitigate abuse while a better solution is specced. ([\#6878](https://github.com/matrix-org/synapse/issues/6878))

Internal Changes
----------------

- Fix continuous integration failures with old versions of `pip`, which were introduced by a release of the `zipp` library. ([\#6880](https://github.com/matrix-org/synapse/issues/6880))

Synapse 1.10.0rc2 (2020-02-06)
==============================

Bugfixes
--------

- Fix an issue with cross-signing where device signatures were not sent to remote servers. ([\#6844](https://github.com/matrix-org/synapse/issues/6844))
- Fix to the unknown remote device detection which was introduced in 1.10.rc1. ([\#6848](https://github.com/matrix-org/synapse/issues/6848))

Internal Changes
----------------

- Detect unexpected sender keys on remote encrypted events and resync device lists. ([\#6850](https://github.com/matrix-org/synapse/issues/6850))

Synapse 1.10.0rc1 (2020-01-31)
==============================

Features
--------

- Add experimental support for updated authorization rules for aliases events, from [MSC2260](https://github.com/matrix-org/matrix-doc/pull/2260). ([\#6787](https://github.com/matrix-org/synapse/issues/6787), [\#6790](https://github.com/matrix-org/synapse/issues/6790), [\#6794](https://github.com/matrix-org/synapse/issues/6794))

Bugfixes
--------

- Warn if postgres database has a non-C locale, as that can cause issues when upgrading locales (e.g. due to upgrading OS). ([\#6734](https://github.com/matrix-org/synapse/issues/6734))
- Minor fixes to `PUT /_synapse/admin/v2/users` admin api. ([\#6761](https://github.com/matrix-org/synapse/issues/6761))
- Validate `client_secret` parameter using the regex provided by the Client-Server API, temporarily allowing `:` characters for older clients. The `:` character will be removed in a future release. ([\#6767](https://github.com/matrix-org/synapse/issues/6767))
- Fix persisting redaction events that have been redacted (or otherwise don't have a redacts key). ([\#6771](https://github.com/matrix-org/synapse/issues/6771))
- Fix outbound federation request metrics. ([\#6795](https://github.com/matrix-org/synapse/issues/6795))
- Fix bug where querying a remote user's device keys that weren't cached resulted in only returning a single device. ([\#6796](https://github.com/matrix-org/synapse/issues/6796))
- Fix race in federation sender worker that delayed sending of device updates. ([\#6799](https://github.com/matrix-org/synapse/issues/6799), [\#6800](https://github.com/matrix-org/synapse/issues/6800))
- Fix bug where Synapse didn't invalidate cache of remote users' devices when Synapse left a room. ([\#6801](https://github.com/matrix-org/synapse/issues/6801))
- Fix waking up other workers when remote server is detected to have come back online. ([\#6811](https://github.com/matrix-org/synapse/issues/6811))

Improved Documentation
----------------------

- Clarify documentation related to `user_dir` and `federation_reader` workers. ([\#6775](https://github.com/matrix-org/synapse/issues/6775))

Internal Changes
----------------

- Record room versions in the `rooms` table. ([\#6729](https://github.com/matrix-org/synapse/issues/6729), [\#6788](https://github.com/matrix-org/synapse/issues/6788), [\#6810](https://github.com/matrix-org/synapse/issues/6810))
- Propagate cache invalidates from workers to other workers. ([\#6748](https://github.com/matrix-org/synapse/issues/6748))
- Remove some unnecessary admin handler abstraction methods. ([\#6751](https://github.com/matrix-org/synapse/issues/6751))
- Add some debugging for media storage providers. ([\#6757](https://github.com/matrix-org/synapse/issues/6757))
- Detect unknown remote devices and mark cache as stale. ([\#6776](https://github.com/matrix-org/synapse/issues/6776), [\#6819](https://github.com/matrix-org/synapse/issues/6819))
- Attempt to resync remote users' devices when detected as stale. ([\#6786](https://github.com/matrix-org/synapse/issues/6786))
- Delete current state from the database when server leaves a room. ([\#6792](https://github.com/matrix-org/synapse/issues/6792))
- When a client asks for a remote user's device keys check if the local cache for that user has been marked as potentially stale. ([\#6797](https://github.com/matrix-org/synapse/issues/6797))
- Add background update to clean out left rooms from current state. ([\#6802](https://github.com/matrix-org/synapse/issues/6802), [\#6816](https://github.com/matrix-org/synapse/issues/6816))
- Refactoring work in preparation for changing the event redaction algorithm. ([\#6803](https://github.com/matrix-org/synapse/issues/6803), [\#6805](https://github.com/matrix-org/synapse/issues/6805), [\#6806](https://github.com/matrix-org/synapse/issues/6806), [\#6807](https://github.com/matrix-org/synapse/issues/6807), [\#6820](https://github.com/matrix-org/synapse/issues/6820))

1 files changed, 25 insertions, 27 deletions

diff --git a/synapse/events/builder.py b/synapse/events/builder.py
index 3997751337..8d63ad6dc3 100644
--- a/synapse/events/builder.py
+++ b/synapse/events/builder.py
@@ -12,8 +12,10 @@
 # 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.
+from typing import Optional
 
 import attr
+from nacl.signing import SigningKey
 
 from twisted.internet import defer
 
@@ -23,13 +25,18 @@ from synapse.api.room_versions import (
     KNOWN_EVENT_FORMAT_VERSIONS,
     KNOWN_ROOM_VERSIONS,
     EventFormatVersions,
+    RoomVersion,
 )
 from synapse.crypto.event_signing import add_hashes_and_signatures
-from synapse.types import EventID
+from synapse.events import (
+    EventBase,
+    _EventInternalMetadata,
+    event_type_from_format_version,
+)
+from synapse.types import EventID, JsonDict
+from synapse.util import Clock
 from synapse.util.stringutils import random_string
 
-from . import _EventInternalMetadata, event_type_from_format_version
-
 
 @attr.s(slots=True, cmp=False, frozen=True)
 class EventBuilder(object):
@@ -40,7 +47,7 @@ class EventBuilder(object):
     content/unsigned/internal_metadata fields are still mutable)
 
     Attributes:
-        format_version (int): Event format version
+        room_version: Version of the target room
         room_id (str)
         type (str)
         sender (str)
@@ -63,7 +70,7 @@ class EventBuilder(object):
     _hostname = attr.ib()
     _signing_key = attr.ib()
 
-    format_version = attr.ib()
+    room_version = attr.ib(type=RoomVersion)
 
     room_id = attr.ib()
     type = attr.ib()
@@ -108,7 +115,8 @@ class EventBuilder(object):
         )
         auth_ids = yield self._auth.compute_auth_events(self, state_ids)
 
-        if self.format_version == EventFormatVersions.V1:
+        format_version = self.room_version.event_format
+        if format_version == EventFormatVersions.V1:
             auth_events = yield self._store.add_event_hashes(auth_ids)
             prev_events = yield self._store.add_event_hashes(prev_event_ids)
         else:
@@ -148,7 +156,7 @@ class EventBuilder(object):
             clock=self._clock,
             hostname=self._hostname,
             signing_key=self._signing_key,
-            format_version=self.format_version,
+            room_version=self.room_version,
             event_dict=event_dict,
             internal_metadata_dict=self.internal_metadata.get_dict(),
         )
@@ -201,7 +209,7 @@ class EventBuilderFactory(object):
             clock=self.clock,
             hostname=self.hostname,
             signing_key=self.signing_key,
-            format_version=room_version.event_format,
+            room_version=room_version,
             type=key_values["type"],
             state_key=key_values.get("state_key"),
             room_id=key_values["room_id"],
@@ -214,29 +222,19 @@ class EventBuilderFactory(object):
 
 
 def create_local_event_from_event_dict(
-    clock,
-    hostname,
-    signing_key,
-    format_version,
-    event_dict,
-    internal_metadata_dict=None,
-):
+    clock: Clock,
+    hostname: str,
+    signing_key: SigningKey,
+    room_version: RoomVersion,
+    event_dict: JsonDict,
+    internal_metadata_dict: Optional[JsonDict] = None,
+) -> EventBase:
     """Takes a fully formed event dict, ensuring that fields like `origin`
     and `origin_server_ts` have correct values for a locally produced event,
     then signs and hashes it.
-
-    Args:
-        clock (Clock)
-        hostname (str)
-        signing_key
-        format_version (int)
-        event_dict (dict)
-        internal_metadata_dict (dict|None)
-
-    Returns:
-        FrozenEvent
     """
 
+    format_version = room_version.event_format
     if format_version not in KNOWN_EVENT_FORMAT_VERSIONS:
         raise Exception("No event format defined for version %r" % (format_version,))
 
@@ -257,7 +255,7 @@ def create_local_event_from_event_dict(
 
     event_dict.setdefault("signatures", {})
 
-    add_hashes_and_signatures(event_dict, hostname, signing_key)
+    add_hashes_and_signatures(room_version, event_dict, hostname, signing_key)
     return event_type_from_format_version(format_version)(
         event_dict, internal_metadata_dict=internal_metadata_dict
     )