Previously we only queried the device list when the user joined the room; now we
do it when they are invited too. This means that new messages can be encrypted
for the devices of the invited user as of the point they were invited.
WARNING: This commit has two major problems however:
1. If the invited user adds devices after being invited but before joining, the
device-list will not be updated to the other servers in the room (as we don't
know who those servers are).
2. This introduces a regression, as previously the device-list would be correctly
updated when when user joined the room. However, this resync doesn't happen
now, so devices which joined after the invite and before the join may never
be added to the device-list.
This is being merged for DINSIC given the edge case of adding devices between
invite & join is pretty rare in their use case, but before it can be merged to
synapse in general we need to at least re-sync the devicelist when the user joins
or to implement some kind of pubsub mechanism to let interested servers subscribe
to devicelist updates on other servers irrespective of user join/invite membership.
This was originally https://github.com/matrix-org/synapse/pull/3484
We need to do a bit more validation when we get a server name, but don't want
to be re-doing it all over the shop, so factor out a separate
parse_and_validate_server_name, and do the extra validation.
Also, use it to verify the server name in the config file.
Make sure that server_names used in auth headers are sane, and reject them with
a sensible error code, before they disappear off into the depths of the system.
otherwise we explode with:
```
Traceback (most recent call last):
File /usr/lib/python2.7/logging/handlers.py, line 78, in emit
logging.FileHandler.emit(self, record)
File /usr/lib/python2.7/logging/__init__.py, line 950, in emit
StreamHandler.emit(self, record)
File /usr/lib/python2.7/logging/__init__.py, line 887, in emit
self.handleError(record)
File /usr/lib/python2.7/logging/__init__.py, line 810, in handleError
None, sys.stderr)
File /usr/lib/python2.7/traceback.py, line 124, in print_exception
_print(file, 'Traceback (most recent call last):')
File /usr/lib/python2.7/traceback.py, line 13, in _print
file.write(str+terminator)
File /home/matrix/.synapse/local/lib/python2.7/site-packages/twisted/logger/_io.py, line 170, in write
self.log.emit(self.level, format=u{log_io}, log_io=line)
File /home/matrix/.synapse/local/lib/python2.7/site-packages/twisted/logger/_logger.py, line 144, in emit
self.observer(event)
File /home/matrix/.synapse/local/lib/python2.7/site-packages/twisted/logger/_observer.py, line 136, in __call__
errorLogger = self._errorLoggerForObserver(brokenObserver)
File /home/matrix/.synapse/local/lib/python2.7/site-packages/twisted/logger/_observer.py, line 156, in _errorLoggerForObserver
if obs is not observer
File /home/matrix/.synapse/local/lib/python2.7/site-packages/twisted/logger/_observer.py, line 81, in __init__
self.log = Logger(observer=self)
File /home/matrix/.synapse/local/lib/python2.7/site-packages/twisted/logger/_logger.py, line 64, in __init__
namespace = self._namespaceFromCallingContext()
File /home/matrix/.synapse/local/lib/python2.7/site-packages/twisted/logger/_logger.py, line 42, in _namespaceFromCallingContext
return currentframe(2).f_globals[__name__]
File /home/matrix/.synapse/local/lib/python2.7/site-packages/twisted/python/compat.py, line 93, in currentframe
for x in range(n + 1):
RuntimeError: maximum recursion depth exceeded while calling a Python object
Logged from file site.py, line 129
File /usr/lib/python2.7/logging/__init__.py, line 859, in emit
msg = self.format(record)
File /usr/lib/python2.7/logging/__init__.py, line 732, in format
return fmt.format(record)
File /usr/lib/python2.7/logging/__init__.py, line 471, in format
record.message = record.getMessage()
File /usr/lib/python2.7/logging/__init__.py, line 335, in getMessage
msg = msg % self.args
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 4: ordinal not in range(128)
Logged from file site.py, line 129
```
...where the logger apparently recurses whilst trying to log the error, hitting the
maximum recursion depth and killing everything badly.
Most rooms have a trivial history visibility like "shared" or
"world_readable", especially large rooms, so lets not bother getting the
full membership of those rooms in that case.
when there is no `m.room.power_levels` event in force in the room. (PR #3397)
Discussion around the Matrix Spec change proposal for this change can be
followed at https://github.com/matrix-org/matrix-doc/issues/1304.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJbIop9AAoJEIofk9V1tejV9lsIAJVH0l5dXROmy1KH/zt16AUA
CXa6Vv4Vyo6hKad/fZ81OZVRr5ChK/TvbIJVn/SA/muCfdoIFdxhT8eo/pXzO2UW
zReuLsDhAg+gSvpNus37oWj2FVsAE1HYDZ60lfaapAdZnkFit68d5DQZjO6nZHHA
YUXcU3GUwj0ZYuUzFzYKMLu6uNNasNkN8h6SS2lF7Bm4JaKDW+mFMfCyJwdIVSEh
BGhHoVpXdxFysD9s6Mwxqrz3KKg1Jtp7idDkk0x2S2Eh+gxyiDQQokv0oQ3+0+HG
sgy5Iz2t2CkpS02/j+LOvAZljTmnD0bXu3srGR+25StsoDFP038Am3bfQwtD190=
=9jsT
-----END PGP SIGNATURE-----
Merge tag 'v0.31.2' into dinsic
When _get_state_for_groups is given a wildcard filter, just do a complete
lookup. Hopefully this will give us the best of both worlds by not filling up
the ram if we only need one or two keys, but also making the cache still work
for the federation reader usecase.
When we finish processing a request, log the number of events we fetched from
the database to handle it.
[I'm trying to figure out which requests are responsible for large amounts of
event cache churn. It may turn out to be more helpful to add counts to the
prometheus per-request/block metrics, but that is an extension to this code
anyway.]
when there is no `m.room.power_levels` event in force in the room. (PR #3397)
Discussion around the Matrix Spec change proposal for this change can be
followed at https://github.com/matrix-org/matrix-doc/issues/1304.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJbIop9AAoJEIofk9V1tejV9lsIAJVH0l5dXROmy1KH/zt16AUA
CXa6Vv4Vyo6hKad/fZ81OZVRr5ChK/TvbIJVn/SA/muCfdoIFdxhT8eo/pXzO2UW
zReuLsDhAg+gSvpNus37oWj2FVsAE1HYDZ60lfaapAdZnkFit68d5DQZjO6nZHHA
YUXcU3GUwj0ZYuUzFzYKMLu6uNNasNkN8h6SS2lF7Bm4JaKDW+mFMfCyJwdIVSEh
BGhHoVpXdxFysD9s6Mwxqrz3KKg1Jtp7idDkk0x2S2Eh+gxyiDQQokv0oQ3+0+HG
sgy5Iz2t2CkpS02/j+LOvAZljTmnD0bXu3srGR+25StsoDFP038Am3bfQwtD190=
=9jsT
-----END PGP SIGNATURE-----
Merge tag 'v0.31.2'
SECURITY UPDATE: Prevent unauthorised users from setting state events in a room
when there is no `m.room.power_levels` event in force in the room. (PR #3397)
Discussion around the Matrix Spec change proposal for this change can be
followed at https://github.com/matrix-org/matrix-doc/issues/1304.