Commit Graph

154 Commits

Author SHA1 Message Date
Amber Brown
23b0813599
Require ECDH key exchange & remove dh_params (#4429)
* remove dh_params and set better cipher string
2019-01-22 21:58:50 +11:00
Amber Brown
916efc8249
Remove fetching keys via the deprecated v1 kex method (#4120) 2018-10-31 23:14:39 +11:00
Richard van der Hoff
ef771cc4c2 Fix a number of flake8 errors
Broadly three things here:

* disable W504 which seems a bit whacko
* remove a bunch of `as e` expressions from exception handlers that don't use
  them
* use `r""` for strings which include backslashes

Also, we don't use pep8 any more, so we can get rid of the duplicate config
there.
2018-10-24 10:39:03 +01:00
Amber Brown
33716c4aea
Merge pull request #3826 from matrix-org/rav/logging_for_keyring
add some logging for the keyring queue
2018-09-12 20:43:47 +10:00
Amber Brown
8fd93b5eea
Port crypto/ to Python 3 (#3822) 2018-09-12 20:16:31 +10:00
Richard van der Hoff
806964b5de add some logging for the keyring queue
why is it so damn slow?
2018-09-06 18:51:06 +01:00
Erik Johnston
808d8e06aa Don't log exceptions when failing to fetch server keys
Not being able to resolve or connect to remote servers is an expected
error, so we shouldn't log at ERROR with stacktraces.
2018-08-21 11:19:26 +01:00
Jeroen
2e9c73e8ca more generic conversion of str/bytes to unicode 2018-08-09 21:31:26 +02:00
Jeroen
64899341dc include private functions from twisted 2018-08-09 21:04:22 +02:00
Jeroen
d5c0ce4cad updated docstring for ServerContextFactory 2018-08-08 19:25:01 +02:00
Jeroen
2903e65aff fix isort 2018-07-29 19:47:08 +02:00
Jeroen
8e3f75b39a fix accidental removal of hs 2018-07-27 12:17:31 +02:00
Jeroen
505530f36a Merge remote-tracking branch 'upstream/develop' into send_sni_for_federation_requests
# Conflicts:
#	synapse/crypto/context_factory.py
2018-07-14 20:24:46 +02:00
Jeroen
b5e157d895 Merge branch 'develop' into send_sni_for_federation_requests
# Conflicts:
#	synapse/http/endpoint.py
2018-07-09 08:51:11 +02:00
Amber Brown
49af402019 run isort 2018-07-09 16:09:20 +10:00
Amber Brown
6350bf925e
Attempt to be more performant on PyPy (#3462) 2018-06-28 14:49:57 +01:00
Jeroen
95341a8f6f take idna implementation from twisted 2018-06-26 21:15:14 +02:00
Jeroen
b7f34ee348 allow self-signed certificates 2018-06-26 20:41:05 +02:00
Jeroen
07b4f88de9 formatting changes for pep8 2018-06-25 12:31:16 +02:00
Jeroen
3d605853c8 send SNI for federation requests 2018-06-24 22:38:43 +02:00
Richard van der Hoff
e82db24a0e Try to log more helpful info when a sig verification fails
Firstly, don't swallow the reason for the failure

Secondly, don't assume all exceptions are verification failures

Thirdly, log a bit of info about the key being used if debug is enabled
2018-06-08 12:13:08 +01:00
Will Hunt
2ad3fc36e6 Fixes #3135 - Replace _OpenSSLECCurve with crypto.get_elliptic_curve (#3157)
fixes #3135

Signed-off-by: Will Hunt will@half-shot.uk
2018-04-30 16:21:11 +01:00
Richard van der Hoff
fc149b4eeb Merge remote-tracking branch 'origin/develop' into rav/use_run_in_background 2018-04-27 14:31:23 +01:00
Richard van der Hoff
2a13af23bc Use run_in_background in preference to preserve_fn
While I was going through uses of preserve_fn for other PRs, I converted places
which only use the wrapped function once to use run_in_background, to avoid
creating the function object.
2018-04-27 12:55:51 +01:00
Richard van der Hoff
9255a6cb17 Improve exception handling for background processes
There were a bunch of places where we fire off a process to happen in the
background, but don't have any exception handling on it - instead relying on
the unhandled error being logged when the relevent deferred gets
garbage-collected.

This is unsatisfactory for a number of reasons:
 - logging on garbage collection is best-effort and may happen some time after
   the error, if at all
 - it can be hard to figure out where the error actually happened.
 - it is logged as a scary CRITICAL error which (a) I always forget to grep for
   and (b) it's not really CRITICAL if a background process we don't care about
   fails.

So this is an attempt to add exception handling to everything we fire off into
the background.
2018-04-27 11:07:40 +01:00
Adrian Tschira
1515560f5c Use str(e) instead of e.message
Doing this I learned e.message was pretty shortlived, added in 2.6,
they realized it was a bad idea and deprecated it in 2.7

Signed-off-by: Adrian Tschira <nota@notafile.com>
2018-04-15 20:32:42 +02:00
Richard van der Hoff
7303ed65e1 Fix 500 when joining matrix-dev
matrix-dev has an event (`$/6ANj/9QWQyd71N6DpRQPf+SDUu11+HVMeKSpMzBCwM:zemos.net`)
which has no `hashes` member.

Check for missing `hashes` element in events.
2017-11-29 16:00:46 +00:00
Richard van der Hoff
eaaabc6c4f replace 'except:' with 'except Exception:'
what could possibly go wrong
2017-10-23 15:52:32 +01:00
Richard van der Hoff
94133d7ce8 Merge branch 'develop' into develop 2017-09-25 11:50:11 +01:00
Richard van der Hoff
79b3cf3e02 Fix logcontxt leak in keyclient (#2465)
preserve_context_over_function doesn't do what you want it to do.
2017-09-25 09:51:39 +01:00
Richard van der Hoff
c5c24c239b Fix logcontext handling in verify_json_objects_for_server
preserve_context_over_fn is essentially broken, because (a) it pointlessly
drops the current logcontext before calling its wrapped function, which means
we don't get any useful logcontexts for _handle_key_deferred; (b) it wraps the
resulting deferred in a _PreservingContextDeferred, which is very dangerous
because you then can't yield on it without leaking context back into the
reactor.

Instead, let's specify that the resultant deferreds call their callbacks with
no logcontext.
2017-09-20 01:32:42 +01:00
Richard van der Hoff
c5b0e9f485 Turn _start_key_lookups into an inlineCallbacks function
... which means that logcontexts can be correctly preserved for the stuff it
does.

get_server_verify_keys is now called with the logcontext, so needs to
preserve_fn when it fires off its nested inlineCallbacks function.

Also renames get_server_verify_keys to reflect the fact it's meant to be
private.
2017-09-20 01:32:42 +01:00
Richard van der Hoff
abdefb8a01 Fix potential race in _start_key_lookups
If the verify_request.deferred has already completed, then `remove_deferreds`
will be called immediately. It therefore might resolve the server_to_deferred
deferred while there are still other requests for that server in flight.

To avoid that, we should build the complete list of requests, and *then* add the
callbacks.
2017-09-20 01:32:42 +01:00
Richard van der Hoff
afbd773dc6 Add some comments to _start_key_lookups 2017-09-20 01:32:42 +01:00
Richard van der Hoff
2a4b9ea233 Consistency for how verify_request.deferred is called
Define that it is run with no log context, and make sure that happens.

If we aren't careful to reset the logcontext, we can't bung the deferreds into
defer.gatherResults etc. We don't actually do that directly, but we *do*
resolve other deferreds from affected callbacks (notably the server_to_deferred
map in _start_key_lookups), and those *do* get passed into
defer.gatherResults. It turns out that this way ends up being least confusing.
2017-09-20 01:32:42 +01:00
Richard van der Hoff
3b98439eca Factor out _start_key_lookups
... to make it easier to see what's going on.
2017-09-20 01:32:42 +01:00
Richard van der Hoff
fde63b880d Replace server_and_json with verify_requests
This is a precursor to factoring some of this code out.
2017-09-20 01:32:42 +01:00
Richard van der Hoff
2d511defd9 pull out handle_key_deferred to top level
There's no need for this to be a nested definition; pulling it out not only
makes it more efficient, but makes it easier to check that it's not accessing
any local variables it shouldn't be.
2017-09-20 01:32:42 +01:00
Richard van der Hoff
dd1ea9763a Fix incorrect key_ids in error message 2017-09-20 01:32:42 +01:00
Richard van der Hoff
9864efa532 Fix concurrent server_key requests (#2458)
Fix a bug where we could end up firing off multiple requests for server_keys
for the same server at the same time.
2017-09-19 23:25:44 +01:00
Richard van der Hoff
290777b3d9 Clean up and document handling of logcontexts in Keyring (#2452)
I'm still unclear on what the intended behaviour for
`verify_json_objects_for_server` is, but at least I now understand the
behaviour of most of the things it calls...
2017-09-18 18:31:01 +01:00
Kenny Keslar
f18373dc5d Fix iteration of requests_missing_keys; list doesn't have .values()
Signed-off-by: Kenny Keslar <r3dey3@r3dey3.com>
2017-07-26 22:44:19 -05:00
Richard van der Hoff
9397edb28b Merge pull request #2050 from matrix-org/rav/federation_backoff
push federation retry limiter down to matrixfederationclient
2017-03-23 22:27:01 +00:00
Richard van der Hoff
4bd597d9fc push federation retry limiter down to matrixfederationclient
rather than having to instrument everywhere we make a federation call,
make the MatrixFederationHttpClient manage the retry limiter.
2017-03-23 09:28:46 +00:00
Richard van der Hoff
64778693be fix up some key verif docstrings 2017-03-21 13:27:50 +00:00
Richard van der Hoff
c36d15d2de Add some debug to help diagnose weird federation issue 2017-03-20 15:36:14 +00:00
Erik Johnston
9219139351 Preserve some logcontexts 2016-08-24 11:58:40 +01:00
Erik Johnston
04fc8bbcb0 Update keyring Measure 2016-08-19 18:23:44 +01:00
Erik Johnston
2426c2f21a Measure keyrings 2016-08-19 18:23:44 +01:00
Erik Johnston
fa1ce4d8ad Don't print stack traces when failing to get remote keys 2016-08-10 10:44:37 +01:00