Matrix-Mirrors/synapse-product
1
0
Fork 0
mirror of https://git.anonymousland.org/anonymousland/synapse-product.git synced 2024-12-11 07:24:18 -05:00
Code Issues Packages Projects Releases Wiki Activity
10,491 Commits 4 Branches 609 Tags 60 MiB
78a9698650
Commit Graph

7666 Commits

Author SHA1 Message Date
Richard van der Hoff
39ce38b024
Merge pull request #3053 from NotAFile/speedup-mxid-check 
improve mxid check performance
 2018-04-04 10:19:52 +01:00
Richard van der Hoff
a9a74101a4 Document the behaviour of ResponseCache 
it looks like everything that uses ResponseCache expects to have to
`make_deferred_yieldable` its results. It's debatable whether that is the best
approach, but let's document it for now to avoid further confusion.
 2018-04-04 09:06:22 +01:00
Luke Barnard
eb8d8d6f57 Use join_policy API instead of joinable 
The API is now under
 /groups/$group_id/setting/m.join_policy

and expects a JSON blob of the shape

```json
{
  "m.join_policy": {
    "type": "invite"
  }
}
```

where "invite" could alternatively be "open".
 2018-04-03 16:16:40 +01:00
Richard van der Hoff
8da39ad98f
Merge pull request #3049 from matrix-org/rav/use_staticjson 
Use static JSONEncoders
 2018-04-03 15:18:32 +01:00
Richard van der Hoff
3ee4ad09eb Fix json encoding bug in replication 
json encoders have an encode method, not a dumps method.
 2018-04-03 15:09:48 +01:00
Adrian Tschira
11597ddea5 improve mxid check performance ~4x 
Signed-off-by: Adrian Tschira <nota@notafile.com>
 2018-03-31 02:00:22 +02:00
Richard van der Hoff
2fe3f848b9 Remove uses of events.content 2018-03-29 23:17:12 +01:00
Richard van der Hoff
05630758f2 Use static JSONEncoders 
using json.dumps with custom options requires us to create a new JSONEncoder on
each call. It's more efficient to create one upfront and reuse it.
 2018-03-29 23:13:33 +01:00
Richard van der Hoff
fcfe7f6ad3 Use simplejson throughout 
Let's use simplejson rather than json, for consistency.
 2018-03-29 22:45:52 +01:00
Neil Johnson
b4e37c6f50 pep8 2018-03-29 17:27:39 +01:00
Neil Johnson
9ee44a372d Remove need for sqlite specific query 2018-03-29 16:45:34 +01:00
Erik Johnston
88cc9cc69e
Merge pull request #3043 from matrix-org/erikj/measure_state_group_creation 
Measure time it takes to calculate state group ID
 2018-03-28 17:40:14 +01:00
Neil Johnson
dc7c020b33 fix pep8 errors 2018-03-28 17:25:15 +01:00
David Baker
c5de6987c2 This should probably be a PUT 2018-03-28 16:44:11 +01:00
Neil Johnson
241e4e8687 remove twisted deferral cruft 2018-03-28 16:25:53 +01:00
David Baker
929b34963d OK, smallint it is then 2018-03-28 14:53:55 +01:00
Richard van der Hoff
9a0db062af
Merge pull request #3034 from matrix-org/rav/fix_key_claim_errors 
Fix error when claiming e2e keys from offline servers
 2018-03-28 14:50:38 +01:00
David Baker
a838444a70 Grr. Copy the definition from is_admin 2018-03-28 14:50:30 +01:00
Neil Johnson
4262aba17b bump schema version 2018-03-28 14:40:03 +01:00
Neil Johnson
86932be2cb Support multi client R30 for psql 2018-03-28 14:36:53 +01:00
David Baker
32260baa41 pep8 2018-03-28 14:29:42 +01:00
Michael Kaye
33f6195d9a Handle review comments 2018-03-28 14:25:25 +01:00
David Baker
a164270833 Make column definition that works on both dbs 2018-03-28 14:23:00 +01:00
David Baker
352e1ff9ed Add schema delta file 2018-03-28 14:07:57 +01:00
David Baker
79452edeee Add joinability for groups 
Adds API to set the 'joinable' flag, and corresponding flag in the
table.
 2018-03-28 14:03:37 +01:00
Krombel
6152e253d8 Merge branch 'develop' of into allow_auto_join_rooms 2018-03-28 14:45:28 +02:00
Neil Johnson
792d340572 rename stat to future proof 2018-03-28 12:25:02 +01:00
Michael Kaye
4ceaa7433a As daemonizing will make a new process, defer call to init. 2018-03-28 12:19:01 +01:00
Neil Johnson
788e69098c Add user_ips last seen index 2018-03-28 12:03:13 +01:00
Neil Johnson
0f890f477e No need to cast in count_daily_users 2018-03-28 11:49:57 +01:00
Neil Johnson
545001b9e4 Fix search_user_dir multiple sqlite versions do different things 2018-03-28 11:19:45 +01:00
Erik Johnston
01ccc9e6f2 Measure time it takes to calculate state group ID 2018-03-28 11:03:52 +01:00
Neil Johnson
a32d2548d9 query and call for r30 stats 2018-03-28 10:39:13 +01:00
Neil Johnson
9187e0762f count_daily_users failed if db was sqlite due to type failure - presumably this prevcented all sqlite homeservers reporting home 2018-03-28 10:02:32 +01:00
Erik Johnston
f879127aaa
Merge pull request #3029 from matrix-org/erikj/linearize_generate_user_id 
Linearize calls to _generate_user_id
 2018-03-28 10:00:31 +01:00
Erik Johnston
e6d87c93f3
Merge pull request #3030 from matrix-org/erikj/no_ujson 
Remove last usage of ujson
 2018-03-28 10:00:06 +01:00
Erik Johnston
004cc8a328
Merge pull request #3033 from matrix-org/erikj/calculate_state_metrics 
Add counter metrics for calculating state delta
 2018-03-28 09:59:42 +01:00
Michael Kaye
ef520d8d0e Include coarse CPU and Memory use in stats callbacks. 
This requires the psutil module, and is still opt-in based on the report_stats
config option.
 2018-03-27 17:56:03 +01:00
Richard van der Hoff
a134c572a6 Stringify exceptions for keys/{query,claim} 
Make sure we stringify any exceptions we return from keys/query and keys/claim,
to avoid a 'not JSON serializable' error later

Fixes #3010
 2018-03-27 17:15:06 +01:00
Richard van der Hoff
c2a5cf2fe3 factor out exception handling for keys/claim and keys/query 
this stuff is badly c&p'ed
 2018-03-27 17:11:23 +01:00
Erik Johnston
800cfd5774 Comment 2018-03-27 13:30:39 +01:00
Erik Johnston
152c2ac19e Fix indent 2018-03-27 13:13:46 +01:00
Erik Johnston
e70287cff3 Comment 2018-03-27 13:13:38 +01:00
Erik Johnston
03a26e28d9
Merge pull request #3017 from matrix-org/erikj/add_cache_control_headers 
Add Cache-Control headers to all JSON APIs
 2018-03-27 13:10:38 +01:00
Erik Johnston
3e0c0660b3 Also do check inside linearizer 2018-03-27 13:01:34 +01:00
Erik Johnston
3f49e131d9 Add counter metrics for calculating state delta 
This will allow us to measure how often we calculate state deltas in
event persistence that we would have been able to calculate at the same
time we calculated the state for the event.
 2018-03-27 10:57:35 +01:00
Erik Johnston
9b8c0fb162 Merge branch 'master' of github.com:matrix-org/synapse into develop 2018-03-26 21:41:55 +01:00
Erik Johnston
a9d7d98d3f Bum version and changelog 2018-03-26 16:36:53 +01:00
Erik Johnston
bdbb1eec65 Merge branch 'erikj/simplejson_replication' of github.com:matrix-org/synapse into release-v0.27.0 2018-03-26 16:35:55 +01:00
Erik Johnston
9187862002 Bump version and changelog 2018-03-26 16:20:24 +01:00
Neil Johnson
51406dab96 version bump 2018-03-26 14:48:19 +01:00
Erik Johnston
fecb45e0c3 Remove last usage of ujson 2018-03-26 13:32:29 +01:00
Erik Johnston
44cd6e1358 PEP8 2018-03-26 12:06:48 +01:00
Erik Johnston
8d6dc106d1 Don't use _cursor_to_dict in find_next_generated_user_id_localpart 2018-03-26 12:02:44 +01:00
Erik Johnston
a052aa42e7 Linearize calls to _generate_user_id 2018-03-26 12:02:20 +01:00
Matthew Hodgson
8cbbfaefc1 404 correctly on missing paths via NoResource 
fixes https://github.com/matrix-org/synapse/issues/2043 and https://github.com/matrix-org/synapse/issues/2029
 2018-03-23 10:32:50 +00:00
Erik Johnston
84b5cc69f5
Merge pull request #3006 from matrix-org/erikj/state_iter 
Use .iter* to avoid copies in StateHandler
 2018-03-22 11:51:13 +00:00
Erik Johnston
fde8e8f09f Fix s/iteriterms/itervalues 2018-03-22 11:42:16 +00:00
Erik Johnston
eb9fc021e3 Merge branch 'release-v0.27.0' of github.com:matrix-org/synapse into develop 2018-03-22 10:19:53 +00:00
Erik Johnston
1c41b05c8c Add Cache-Control headers to all JSON APIs 
It is especially important that sync requests don't get cached, as if a
sync returns the same token given then the client will call sync with
the same parameters again. If the previous response was cached it will
get reused, resulting in the client tight looping making the same
request and never making any progress.

In general, clients will expect to get up to date data when requesting
APIs, and so its safer to do a blanket no cache policy than only
whitelisting APIs that we know will break things if they get cached.
 2018-03-21 17:46:26 +00:00
Neil Johnson
e66fbcbb02 fix merge conflicts 2018-03-20 14:25:31 +00:00
Erik Johnston
9aa5a0af51 Explicitly use simplejson 2018-03-20 09:58:13 +00:00
Erik Johnston
610accbb7f Fix replication after switch to simplejson 
Turns out that simplejson serialises namedtuple's as dictionaries rather
than tuples by default.
 2018-03-19 16:12:48 +00:00
Neil Johnson
c384705ee8
Update __init__.py 
bump version
 2018-03-19 15:11:58 +00:00
Erik Johnston
3f961e638a
Merge pull request #3005 from matrix-org/erikj/fix_cache_size 
Fix bug where state cache used lots of memory
 2018-03-19 11:44:26 +00:00
Erik Johnston
fa72803490 Merge branch 'master' of github.com:matrix-org/synapse into develop 2018-03-19 11:41:01 +00:00
Erik Johnston
9a0d783c11 Add comments 2018-03-19 11:35:53 +00:00
Matthew Hodgson
38f952b9bc spell out not to massively increase bcrypt rounds 2018-03-19 09:27:36 +00:00
Erik Johnston
a8ce159be4 Replace some ujson with simplejson to make it work 2018-03-16 00:27:09 +00:00
Erik Johnston
5b631ff41a Remove wrong comment 2018-03-16 00:07:08 +00:00
Erik Johnston
ba48755d56 Bump version and changelog 2018-03-15 23:57:26 +00:00
Erik Johnston
926ba76e23 Replace ujson with simplejson 2018-03-15 23:43:31 +00:00
Erik Johnston
9cf519769b Use .iter* to avoid copies in StateHandler 2018-03-15 17:50:26 +00:00
Erik Johnston
7c7706f42b Fix bug where state cache used lots of memory 
The state cache bases its size on the sum of the size of entries. The
size of the entry is calculated once on insertion, so it is important
that the size of entries does not change.

The DictionaryCache modified the entries size, which caused the state
cache to incorrectly think it was smaller than it actually was.
 2018-03-15 15:46:54 +00:00
NotAFile
2cc9f76bc3 replace old style error catching with 'as' keyword 
This is both easier to read and compatible with python3 (not that that
matters)

Signed-off-by: Adrian Tschira <nota@notafile.com>
 2018-03-15 16:11:17 +01:00
Erik Johnston
ddb00efc1d Bump version number 2018-03-15 14:41:30 +00:00
Krombel
91ea0202e6 move handling of auto_join_rooms to RegisterHandler 
Currently the handling of auto_join_rooms only works when a user
registers itself via public register api. Registrations via
registration_shared_secret and ModuleApi do not work

This auto_joins the users in the registration handler which enables
the auto join feature for all 3 registration paths.

This is related to issue #2725

Signed-Off-by: Matthias Kesler <krombel@krombel.de>
 2018-03-14 16:45:37 +01:00
Erik Johnston
4f28018c83 Register membership/state servlets in event_creator 2018-03-14 14:30:06 +00:00
Erik Johnston
57db62e554
Merge pull request #2992 from matrix-org/erikj/implement_member_workre 
Implement RoomMemberWorkerHandler
 2018-03-14 14:29:33 +00:00
Erik Johnston
0011ede3b0 Fix imports 2018-03-14 14:19:23 +00:00
Erik Johnston
62ad701326 s/join/joined/ in notify_user_membership_change 2018-03-14 14:17:43 +00:00
Erik Johnston
3f0f06cb31 Split RoomMemberWorkerHandler to separate file 2018-03-14 11:41:45 +00:00
Erik Johnston
3e839e0548
Merge pull request #2989 from matrix-org/erikj/profile_cache_master 
Only update remote profile cache on master
 2018-03-14 09:42:27 +00:00
Erik Johnston
ebd0127999
Merge pull request #2988 from matrix-org/erikj/split_profile_store 
Split up ProfileStore
 2018-03-14 09:41:06 +00:00
Erik Johnston
cfe75a9fb6
Merge pull request #2991 from matrix-org/erikj/fixup_rm 
_remote_join and co take a requester
 2018-03-14 09:40:57 +00:00
Erik Johnston
f51565e023
Merge pull request #2993 from matrix-org/erikj/is_blocked 
Add is_blocked to worker store
 2018-03-14 09:39:18 +00:00
Matthew Hodgson
d144ed6ffb
fix bug #2926 (loading all state for a given type from the DB if the state_key is None) (#2990) 
Fixes a regression that had crept in where the caching layer upholds requests for loading state which is filtered by type (but not by state_key), but the DB layer itself would interpret a missing state_key as a request to filter by null state_key rather than returning all state_keys.
 2018-03-13 22:36:04 +00:00
Erik Johnston
a08726fc42 Add is_blocked to worker store 2018-03-13 18:28:44 +00:00
Erik Johnston
b27320b550 Implement RoomMemberWorkerHandler 2018-03-13 18:26:00 +00:00
Erik Johnston
350331d466 _remote_join and co take a requester 2018-03-13 17:50:39 +00:00
Erik Johnston
1a69c6d590
Merge pull request #2987 from matrix-org/erikj/split_room_member_handler 
Split RoomMemberHandler into base and master class
 2018-03-13 17:40:00 +00:00
Erik Johnston
df8ff682a7 Only update remote profile cache on master 2018-03-13 17:38:21 +00:00
Erik Johnston
3518d0ea8f Split up ProfileStore 2018-03-13 17:36:50 +00:00
Erik Johnston
d45a114824 Raise, don't return, exception 2018-03-13 17:24:34 +00:00
Erik Johnston
6dbebef141 Add missing param to docstrings 2018-03-13 17:15:32 +00:00
Erik Johnston
16adb11cc0 Correct import order 2018-03-13 16:57:07 +00:00
Erik Johnston
82f16faa78 Move user_*_room distributor stuff to master class 
I added yields when calling user_left_room, but they shouldn't matter on
the master process as they always return None anyway.
 2018-03-13 16:38:15 +00:00
Erik Johnston
b78717b87b Split RoomMemberHandler into base and master class 
The intention here is to split the class into the bits that can be done
on workers and the bits that have to be done on the master.

In future there will also be a class that can be run on the worker,
which will delegate work to the master when necessary.
 2018-03-13 16:37:41 +00:00
Erik Johnston
95cb401ae0
Merge pull request #2978 from matrix-org/erikj/refactor_replication_layer 
Remove ReplicationLayer and user Client/Server directly
 2018-03-13 15:45:08 +00:00
Erik Johnston
5d8476d8ff
Merge pull request #2981 from matrix-org/erikj/factor_remote_leave 
Factor out _remote_reject_invite in RoomMember
 2018-03-13 15:44:56 +00:00
Jonas Platte
47ce527f45 Add room_id to the response of rooms/{roomId}/join 
Fixes #2349
 2018-03-13 14:48:12 +01:00
Erik Johnston
56e709857c
Merge pull request #2979 from matrix-org/erikj/no_handlers 
Don't build handlers on workers unnecessarily
 2018-03-13 13:46:38 +00:00
Erik Johnston
cb9f8e527c s/replication_client/federation_client/ 2018-03-13 13:26:52 +00:00
Erik Johnston
cea462e285 s/replication_server/federation_server 2018-03-13 13:22:21 +00:00
Erik Johnston
bf8e97bd3c Merge branch 'develop' of github.com:matrix-org/synapse into erikj/factor_remote_leave 2018-03-13 13:17:08 +00:00
Erik Johnston
ea3442c15c Add docstring 2018-03-13 13:16:21 +00:00
Erik Johnston
16469a4f15
Merge pull request #2980 from matrix-org/erikj/rm_priv 
Make RoomMemberHandler functions private that can be
 2018-03-13 13:11:11 +00:00
Erik Johnston
c82111a55f
Merge pull request #2982 from matrix-org/erikj/fix_extra_users 
extra_users is actually a list of UserIDs
 2018-03-13 13:11:04 +00:00
Erik Johnston
da87791975
Merge pull request #2983 from matrix-org/erikj/rename_register_3pid 
Refactor get_or_register_3pid_guest
 2018-03-13 13:10:52 +00:00
Erik Johnston
99e9b4f26c
Merge pull request #2984 from matrix-org/erikj/fix_rest_regeix 
RoomMembershipRestServlet doesn't handle /forget
 2018-03-13 13:10:44 +00:00
Erik Johnston
f5160d4a3e RoomMembershipRestServlet doesn't handle /forget 
Due to the order we register the REST handlers `/forget` was handled by
the correct handler.
 2018-03-13 12:12:55 +00:00
Erik Johnston
8b3573a8b2 Refactor get_or_register_3pid_guest 2018-03-13 12:08:58 +00:00
Richard van der Hoff
299fd740c7
Merge pull request #2975 from matrix-org/rav/measure_persist_events 
Add Measure block for persist_events
 2018-03-13 12:06:25 +00:00
Erik Johnston
9a2d9b4789
Merge pull request #2977 from matrix-org/erikj/replication_move_props 
Move property setting from ReplicationLayer to base classes
 2018-03-13 11:45:25 +00:00
Erik Johnston
f43b6d6d9b Fix docstring types 2018-03-13 11:29:35 +00:00
Erik Johnston
0f942f68c1 Factor out _remote_reject_invite in RoomMember 2018-03-13 11:22:45 +00:00
Erik Johnston
d0fcc48f9d extra_users is actually a list of UserIDs 2018-03-13 11:20:06 +00:00
Erik Johnston
31becf4ac3 Make functions private that can be 2018-03-13 11:15:16 +00:00
Erik Johnston
d023ecb810 Don't build handlers on workers unnecessarily 2018-03-13 11:08:10 +00:00
Erik Johnston
ea7b3c4b1b Remove unused ReplicationLayer 2018-03-13 11:00:04 +00:00
Erik Johnston
265b993b8a Split replication layer into two 2018-03-13 10:55:47 +00:00
Erik Johnston
e05bf34117 Move property setting from ReplicationLayer to FederationBase 2018-03-13 10:51:30 +00:00
Erik Johnston
c3f79c9da5 Split out edu/query registration to a separate class 2018-03-13 10:24:27 +00:00
Richard van der Hoff
889a2a853a Add Measure block for persist_events 
This seems like a useful thing to measure.
 2018-03-13 10:01:42 +00:00
Richard van der Hoff
e48c7aac4d Add transactional API to history purge 
Make the purge request return quickly, and allow scripts to poll for updates.
 2018-03-12 16:22:55 +00:00
Richard van der Hoff
1708412f56 Return an error when doing two purges on a room 
Queuing up purges doesn't sound like a good thing.
 2018-03-12 16:22:54 +00:00
Richard van der Hoff
b984dd0b73
Merge pull request #2961 from matrix-org/rav/run_in_background 
Factor run_in_background out from preserve_fn
 2018-03-12 16:19:13 +00:00
Richard van der Hoff
ba1d08bc4b
Merge pull request #2965 from matrix-org/rav/request_logging 
Add a metric which increments when a request is received
 2018-03-12 09:45:33 +00:00
Richard van der Hoff
58dd148c4f Add some docstrings to help figure this out 2018-03-09 18:05:41 +00:00
Richard van der Hoff
88541f9009 Add a metric which increments when a request is received 
It's useful to know when there are peaks in incoming requests - which isn't
quite the same as there being peaks in outgoing responses, due to the time
taken to handle requests.
 2018-03-09 16:30:26 +00:00
Richard van der Hoff
dbe80a286b refactor JsonResource 
rephrase the OPTIONS and unrecognised request handling so that they look
similar to the common flow.
 2018-03-09 16:22:16 +00:00
Richard van der Hoff
20f40348d4 Factor run_in_background out from preserve_fn 
It annoys me that we create temporary function objects when there's really no
need for it. Let's factor the gubbins out of preserve_fn and start using it.
 2018-03-08 11:50:11 +00:00
Erik Johnston
a56d54dcb7 Fix up log message 2018-03-07 11:55:31 +00:00
Erik Johnston
02a1296ad6 Fix typo 2018-03-07 11:55:31 +00:00
Erik Johnston
8cb44da4aa Fix race in sync when joining room 
The race happens when the user joins a room at the same time as doing a
sync. We fetch the current token and then get the rooms the user is in.
If the join happens after the current token, but before we get the rooms
we end up sending down a partial room entry in the sync.

This is fixed by looking at the stream ordering of the membership
returned by get_rooms_for_user, and handling the case when that stream
ordering is after the current token.
 2018-03-07 11:55:31 +00:00
Richard van der Hoff
8ffaacbee3
Merge pull request #2949 from krombel/use_bcrypt_checkpw 
use bcrypt.checkpw
 2018-03-06 11:56:06 +00:00
Richard van der Hoff
b2932107bb
Merge pull request #2946 from matrix-org/rav/timestamp_to_purge 
Implement purge_history by timestamp
 2018-03-06 11:20:23 +00:00
Erik Johnston
7aed50a038
Merge pull request #2948 from matrix-org/erikj/kill_as_sync 
Remove ability for AS users to call /events and /sync
 2018-03-06 11:10:09 +00:00
Erik Johnston
b6c4b851f1
Merge pull request #2947 from matrix-org/erikj/split_directory_store 
Split Directory store
 2018-03-05 18:17:32 +00:00
Krombel
ed9b5eced4 use bcrypt.checkpw 
in bcrypt 3.1.0 checkpw got introduced (already 2 years ago)
This makes use of that with enhancements which might get introduced
by that

Signed-Off-by: Matthias Kesler <krombel@krombel.de>
 2018-03-05 18:02:59 +01:00
Erik Johnston
d4ffe61d4f Remove ability for AS users to call /events and /sync 
This functionality has been deprecated for a while as well as being
broken for a while. Instead of fixing it lets just remove it entirely.

See: https://github.com/matrix-org/matrix-doc/issues/1144
 2018-03-05 15:44:46 +00:00
Erik Johnston
69ce365b79 Fix cache invalidation on deletion 2018-03-05 15:29:03 +00:00
Erik Johnston
2e223163ff Split Directory store 2018-03-05 15:11:30 +00:00
Richard van der Hoff
f8bfcd7e0d Provide a means to pass a timestamp to purge_history 2018-03-05 14:37:23 +00:00
Richard van der Hoff
d032785aa7
Merge pull request #2943 from matrix-org/rav/fix_find_first_stream_ordering_after_ts 
Test and fix find_first_stream_ordering_after_ts
 2018-03-05 12:26:14 +00:00
Richard van der Hoff
c818fcab11 Test and fix find_first_stream_ordering_after_ts 
It seemed to suffer from a bunch of off-by-one errors.
 2018-03-05 12:04:02 +00:00
Richard van der Hoff
06a14876e5 Add find_first_stream_ordering_after_ts 
Expose this as a public function which can be called outside a txn
 2018-03-05 11:53:39 +00:00
Erik Johnston
42174946f8
Merge pull request #2934 from matrix-org/erikj/cache_fix 
Fix bug with delayed cache invalidation stream
 2018-03-05 11:33:17 +00:00
Erik Johnston
f394f5574d
Merge pull request #2929 from matrix-org/erikj/split_regististration_store 
Split registration store
 2018-03-05 11:33:07 +00:00
dklug
af7ed8e1ef Return 401 for invalid access_token on logout 
Signed-off-by: Duncan Klug <dklug@ucmerced.edu>
 2018-03-02 22:01:27 -08:00