Commit graph

1426 commits

Author SHA1 Message Date
Erik Johnston
9526aa96a6
Merge pull request #5212 from matrix-org/erikj/deny_multiple_reactions
Block attempts to annotate the same event twice
2019-05-21 17:08:14 +01:00
Brendan Abolivier
6a5a70edf0
Merge pull request #5204 from matrix-org/babolivier/account_validity_expiration_date
Add startup background job for account validity
2019-05-21 14:55:15 +01:00
Erik Johnston
c7ec06e8a6 Block attempts to annotate the same event twice 2019-05-20 17:39:05 +01:00
Erik Johnston
1dff859d6a Rename relation types to match MSC 2019-05-20 14:31:19 +01:00
Erik Johnston
57ba3451b6
Merge pull request #5209 from matrix-org/erikj/reactions_base
Land basic reaction and edit support.
2019-05-20 14:06:40 +01:00
Erik Johnston
2ac9c965dd Fixup comments 2019-05-20 12:32:26 +01:00
Erik Johnston
935af0da38 Correctly update aggregation counts after redaction 2019-05-20 12:09:27 +01:00
ReidAnderson
3787133c9e Limit UserIds to a length that fits in a state key (#5198) 2019-05-20 11:20:08 +01:00
Brendan Abolivier
ad5b4074e1
Add startup background job for account validity
If account validity is enabled in the server's configuration, this job will run at startup as a background job and will stick an expiration date to any registered account missing one.
2019-05-17 19:37:31 +01:00
Erik Johnston
d4ca533d70 Make tests use different user for each reaction it sends
As users aren't allowed to react with the same emoji more than once.
2019-05-17 18:03:05 +01:00
Brendan Abolivier
fdeac1e984
Merge pull request #5196 from matrix-org/babolivier/per_room_profiles
Add an option to disable per-room profiles
2019-05-17 12:10:49 +01:00
David Baker
07cff7b121
Merge pull request #5174 from matrix-org/dbkr/add_dummy_flow_to_recaptcha_only
Re-order registration stages to do msisdn & email auth last
2019-05-16 17:27:39 +01:00
Erik Johnston
d46aab3fa8 Add basic editing support 2019-05-16 16:54:45 +01:00
Brendan Abolivier
8f9ce1a8a2
Lint 2019-05-16 15:25:54 +01:00
Brendan Abolivier
cc8c139a39
Lint 2019-05-16 15:20:59 +01:00
Brendan Abolivier
efdc55db75
Forgot copyright 2019-05-16 15:10:24 +01:00
Brendan Abolivier
54a582ed44
Add test case 2019-05-16 15:09:16 +01:00
Erik Johnston
95f3fcda3c Check that event is visible in new APIs 2019-05-16 14:19:06 +01:00
Erik Johnston
a0603523d2 Add aggregations API 2019-05-16 09:37:20 +01:00
Amber Brown
f1e5b41388
Make all the rate limiting options more consistent (#5181) 2019-05-15 12:06:04 -05:00
Erik Johnston
b50641e357 Add simple pagination API 2019-05-15 13:36:51 +01:00
Erik Johnston
efe3c7977a Add simple send_relation API and track in DB 2019-05-15 13:36:51 +01:00
Erik Johnston
d94544051b
Merge pull request #5184 from matrix-org/erikj/expose_get_events_as_array
Expose DataStore._get_events as get_events_as_list
2019-05-15 10:17:38 +01:00
Erik Johnston
495e859e58 Merge branch 'erikj/fix_config_ratelimiting' into erikj/test 2019-05-14 14:42:47 +01:00
Erik Johnston
dc4f6d1b01 Use correct config option for ratelimiting in tests 2019-05-14 14:37:40 +01:00
Erik Johnston
4fb44fb5b9 Expose DataStore._get_events as get_events_as_list
This is in preparation for reaction work which requires it.
2019-05-14 13:37:44 +01:00
Amber Brown
df2ebd75d3
Migrate all tests to use the dict-based config format instead of hanging items off HomeserverConfig (#5171) 2019-05-13 15:01:14 -05:00
Andrew Morgan
5a4b328f52 Add ability to blacklist ip ranges for federation traffic (#5043) 2019-05-13 19:05:06 +01:00
David Baker
822072b1bb Terms might not be the last stage 2019-05-13 16:10:26 +01:00
David Baker
9e99143c47 Merge remote-tracking branch 'origin/develop' into dbkr/add_dummy_flow_to_recaptcha_only 2019-05-13 15:37:03 +01:00
David Baker
8782bfb783 And now I realise why the test is failing... 2019-05-13 15:34:11 +01:00
Andrew Morgan
2f48c4e1ae
URL preview blacklisting fixes (#5155)
Prevents a SynapseError being raised inside of a IResolutionReceiver and instead opts to just return 0 results. This thus means that we have to lump a failed lookup and a blacklisted lookup together with the same error message, but the substitute should be generic enough to cover both cases.
2019-05-10 10:32:44 -07:00
Amber Brown
b36c82576e
Run Black on the tests again (#5170) 2019-05-10 00:12:11 -05:00
Brendan Abolivier
d216a36b37
Fix bogus imports in tests (#5154) 2019-05-08 21:57:03 +01:00
Matthew Hodgson
c0e0740bef add options to require an access_token to GET /profile and /publicRooms on CS API (#5083)
This commit adds two config options:

* `restrict_public_rooms_to_local_users`

Requires auth to fetch the public rooms directory through the CS API and disables fetching it through the federation API.

* `require_auth_for_profile_requests`

When set to `true`, requires that requests to `/profile` over the CS API are authenticated, and only returns the user's profile if the requester shares a room with the profile's owner, as per MSC1301.

MSC1301 also specifies a behaviour for federation (only returning the profile if the server asking for it shares a room with the profile's owner), but that's currently really non-trivial to do in a not too expensive way. Next step is writing down a MSC that allows a HS to specify which user sent the profile query. In this implementation, Synapse won't send a profile query over federation if it doesn't believe it already shares a room with the profile's owner, though.

Groups have been intentionally omitted from this commit.
2019-05-08 18:26:56 +01:00
Brendan Abolivier
1473058b5e
Do checks on aliases for incoming m.room.aliases events (#5128)
Follow-up to #5124

Also added a bunch of checks to make sure everything (both the stuff added on #5124 and this PR) works as intended.
2019-05-08 17:01:30 +01:00
Richard van der Hoff
59e2d2694d
Remove the requirement to authenticate for /admin/server_version. (#5122)
This endpoint isn't much use for its intended purpose if you first need to get
yourself an admin's auth token.

I've restricted it to the `/_synapse/admin` path to make it a bit easier to
lock down for those concerned about exposing this information. I don't imagine
anyone is using it in anger currently.
2019-05-07 09:29:30 +01:00
Richard van der Hoff
12f9d51e82
Add admin api for sending server_notices (#5121) 2019-05-02 11:59:16 +01:00
Richard van der Hoff
40e576e29c Move admin api impl to its own package
It doesn't really belong under rest/client/v1 any more.
2019-05-01 15:44:30 +01:00
Andrew Morgan
6824ddd93d Config option for verifying federation certificates (MSC 1711) (#4967) 2019-04-25 14:22:49 +01:00
Erik Johnston
ca90336a69 Merge branch 'develop' of github.com:matrix-org/synapse into babolivier/account_expiration 2019-04-17 19:44:40 +01:00
Brendan Abolivier
eaf41a943b Add management endpoints for account validity 2019-04-17 19:34:45 +01:00
Brendan Abolivier
91934025b9
Merge pull request #5047 from matrix-org/babolivier/account_expiration
Send out emails with links to extend an account's validity period
2019-04-17 14:57:39 +01:00
Brendan Abolivier
20f0617e87 Send out emails with links to extend an account's validity period 2019-04-17 14:42:20 +01:00
Andrew Morgan
caa76e6021
Remove periods from copyright headers (#5046) 2019-04-11 17:08:13 +01:00
Brendan Abolivier
bfc8fdf1fc
Merge pull request #5027 from matrix-org/babolivier/account_expiration
Add time-based account expiration
2019-04-09 17:02:41 +01:00
Brendan Abolivier
747aa9f8ca Add account expiration feature 2019-04-09 16:46:04 +01:00
Richard van der Hoff
18b69be00f Rewrite Datastore.get_server_verify_keys
Rewrite this so that it doesn't hammer the database.
2019-04-09 00:00:10 +01:00
Richard van der Hoff
0084309cd2 Rewrite test_keys as a HomeserverTestCase 2019-04-08 23:59:57 +01:00
Richard van der Hoff
7d2a0c848e Fix from_server buglet in get_keys_from_perspectives
make sure we store the name of the server the keys came from, rather than the
origin server, after doing a fetch-from-perspectives.
2019-04-08 12:51:16 +01:00
Richard van der Hoff
7fc1e17f4c
Merge pull request #5001 from matrix-org/rav/keyring_cleanups
Cleanups in the Keyring
2019-04-08 12:47:09 +01:00
Richard van der Hoff
b2d574f126 test for get_keys_from_perspectives 2019-04-04 19:12:54 +01:00
Richard van der Hoff
30805237fa add a test for get_keys_from_server 2019-04-04 19:12:54 +01:00
Brendan Abolivier
8e85493b0c
Add config option to block users from looking up 3PIDs (#5010) 2019-04-04 17:25:47 +01:00
Erik Johnston
c6a233a936 Add unit test for deleting groups 2019-04-03 16:29:52 +01:00
Andrew Morgan
4a4d5c4fd6
Fix grammar and document get_current_users_in_room (#4998) 2019-04-03 14:32:20 +01:00
Richard van der Hoff
e4d473d855
Rewrite KeyringTestCase as a HomeServerTestCase (#4986)
This is a bit fiddly due to the keyring doing weird things with logcontexts.
2019-04-03 14:11:27 +01:00
Neil Johnson
e8419554ff
Remove presence lists (#4989)
Remove presence list support as per MSC 1819
2019-04-03 11:11:15 +01:00
Richard van der Hoff
297bf2547e
Fix sync bug when accepting invites (#4956)
Hopefully this time we really will fix #4422.

We need to make sure that the cache on
`get_rooms_for_user_with_stream_ordering` is invalidated *before* the
SyncHandler is notified for the new events, and we can now do so reliably via
the `events` stream.
2019-04-02 12:42:39 +01:00
Neil Johnson
4c552ed78a
Neilj/fix threepid auth check (with tests) (#4474)
test threepid checking
2019-04-01 17:42:18 +01:00
Richard van der Hoff
54a87a7b08
Collect room-version variations into one place (#4969)
Collect all the things that make room-versions different to one another into
one place, so that it's easier to define new room versions.
2019-04-01 10:24:38 +01:00
Erik Johnston
248014379e
Merge pull request #4942 from matrix-org/erikj/fix_presence
Use event streams to calculate presence
2019-03-28 14:38:31 +00:00
Erik Johnston
40e56997bc Review comments 2019-03-28 13:48:41 +00:00
Richard van der Hoff
a5798de067 Move replication.tcp.streams into a package 2019-03-27 21:13:14 +00:00
Erik Johnston
b7fa834c40 Add unit tests 2019-03-27 13:41:36 +00:00
Andrew Morgan
4a125be138
Make federation endpoints more tolerant of trailing slashes v2 (#4935)
Redo of https://github.com/matrix-org/synapse/pull/4840
2019-03-26 11:35:29 +00:00
Richard van der Hoff
9bde730ef8
Fix bug where read-receipts lost their timestamps (#4927)
Make sure that they are sent correctly over the replication stream.

Fixes: #4898
2019-03-25 16:38:05 +00:00
Richard van der Hoff
a54a44734f
Use an explicit dbname for postgres connections in the tests. (#4928)
I don't have a database with the same name as my user, so leaving the database
name unset fails.

While we're at it, clear out some unused stuff in the test setup.
2019-03-25 16:36:56 +00:00
Erik Johnston
5fee9d8067
Merge pull request #4869 from matrix-org/erikj/yaml_load
Fix yaml warnings by using safe_load
2019-03-22 11:58:13 +00:00
Erik Johnston
3677548a82 Use yaml safe_load 2019-03-22 10:20:17 +00:00
Amber Brown
a68e00fca8
Some more porting to HomeserverTestCase and remove old RESTHelper (#4913) 2019-03-22 02:10:21 +11:00
Andrew Morgan
7bef97dfb7
Remove trailing slashes from outbound federation requests and retry on 400 (#4840)
As per #3622, we remove trailing slashes from outbound federation requests. However, to ensure that we remain backwards compatible with previous versions of Synapse, if we receive a HTTP 400 with `M_UNRECOGNIZED`, then we are likely talking to an older version of Synapse in which case we retry with a trailing slash appended to the request path.
2019-03-21 15:07:28 +00:00
Erik Johnston
01e6b405be
Merge pull request #4908 from matrix-org/erikj/block_peek_on_blocked_rooms
Deny peeking into rooms that have been blocked
2019-03-21 14:07:17 +00:00
Erik Johnston
d3f640f0ac isort 2019-03-21 11:29:48 +00:00
Erik Johnston
3959858eaa
Merge pull request #4904 from matrix-org/erikj/fix_shutdown
Fixup shutdown room API
2019-03-21 11:24:42 +00:00
Erik Johnston
cd80cbffea Fix typo and add description 2019-03-21 11:24:04 +00:00
Erik Johnston
536a266520 Deny peeking into rooms that have been blocked 2019-03-21 11:20:13 +00:00
Erik Johnston
4a8a1ac962 Rejig testcase to make it more extensible 2019-03-21 11:02:11 +00:00
Erik Johnston
9c9e618b93 Remove debug 2019-03-21 10:58:56 +00:00
Erik Johnston
5c6f61f81c Add tests 2019-03-21 10:51:21 +00:00
Erik Johnston
09f991a63d
Merge pull request #4896 from matrix-org/erikj/disable_room_directory
Add option to disable search room lists
2019-03-21 10:16:54 +00:00
Richard van der Hoff
a6f2d3053d
Log requests which are simulated by the unit tests. (#4905)
Rather than stubbing out the access_log, make it actually log the requests,
which makes it a lot more obvious what is going on during tests.
2019-03-20 18:00:02 +00:00
Erik Johnston
263f2c9ce1
Merge pull request #4895 from matrix-org/erikj/disable_user_search
Add option to disable searching in the user dir
2019-03-20 16:47:15 +00:00
Richard van der Hoff
a902d13180
Batch up outgoing read-receipts to reduce federation traffic. (#4890)
Rate-limit outgoing read-receipts as per #4730.
2019-03-20 16:02:25 +00:00
Erik Johnston
3660d24ebe Add test 2019-03-20 15:16:36 +00:00
Erik Johnston
cc09685830 Add test 2019-03-20 14:53:44 +00:00
Andrew Morgan
bb52a2e653 lint 2019-03-20 14:08:57 +00:00
Andrew Morgan
cd36a1283b New test, fix issues 2019-03-20 14:00:39 +00:00
Andrew Morgan
c69df5d5d3 Fix comments. v0.99.2 -> v0.99.3 2019-03-20 11:27:18 +00:00
Andrew Morgan
94cb7939e4 Federation test fixed! 2019-03-20 10:50:44 +00:00
Richard van der Hoff
b5d48560c7 Fix RegistrationTestCase
turns out this relies on there being a `user_consent_version` set.
2019-03-19 12:05:05 +00:00
Richard van der Hoff
13bc1e0746 Use a regular HomeServerConfig object for unit tests
Rather than using a Mock for the homeserver config, use a genuine
HomeServerConfig object. This makes for a more realistic test, and means that
we don't have to keep remembering to add things to the mock config every time
we add a new config setting.
2019-03-19 11:44:43 +00:00
Richard van der Hoff
053c50bcb3 Fix resource limits tests
Make sure that we have a `server_notices_mxid` set, given that we are relying
on it.
2019-03-19 11:44:43 +00:00
Richard van der Hoff
45bb54a6c6 Fix registration test
* Set allow_guest_access = True, since we rely on it
* config doesn't have a `hostname` attribute; it is `server_name`
2019-03-19 11:44:43 +00:00
Richard van der Hoff
8c1774e821 Fix email test
The Mailer expects the config object to have `email_smtp_pass` and
`email_riot_base_url` attributes (and it won't by default, because the default
config impl doesn't set any of the attributes unless email_enable_notifs is
set).
2019-03-19 11:44:43 +00:00
Richard van der Hoff
45c4e19c74 Merge remote-tracking branch 'origin/develop' into HEAD 2019-03-19 11:43:46 +00:00
Neil Johnson
88f0675967 fix test_auto_create_auto_join_where_no_consent (#4886) 2019-03-19 11:38:59 +00:00
Richard van der Hoff
0dbfae03f9 Enforce hs_disabled_message correctly
Fixes a bug where hs_disabled_message was not enforced for 3pid-based requests
if there was no server_notices_mxid configured.
2019-03-19 11:30:54 +00:00
Amber Brown
282c97327f
Migrate the user directory initial population to a background task (#4864) 2019-03-19 04:50:24 +11:00
Andrew Morgan
621e7f37f1 Better exception handling 2019-03-18 17:45:54 +00:00
Brendan Abolivier
651ad8bc96 Add ratelimiting on failed login attempts (#4865) 2019-03-18 12:57:20 +00:00
Brendan Abolivier
899e523d6d
Add ratelimiting on login (#4821)
Add two ratelimiters on login (per-IP address and per-userID).
2019-03-15 17:46:16 +00:00
Erik Johnston
271cb1998b Revert "Make federation endpoints more tolerant of trailing slashes for some endpoints (#4793)"
This reverts commit 290552fd83.
2019-03-14 14:30:54 +00:00
Erik Johnston
9073cfc8bd
Merge pull request #4846 from matrix-org/hawkowl/userdir-search
Improve searching in the userdir
2019-03-14 13:54:15 +00:00
Andrew Morgan
ecea5af491 Correct var name 2019-03-13 21:21:03 +00:00
Andrew Morgan
86c60bda15 i should have given up x3 2019-03-13 20:19:07 +00:00
Andrew Morgan
45524f2f5e i should have given up x2 2019-03-13 20:17:39 +00:00
Andrew Morgan
09626bfd39 Switch to wrapper function around _send_request 2019-03-13 18:26:06 +00:00
Andrew Morgan
97653ef1f4 Correct argument name 2019-03-12 14:30:26 +00:00
Amber Brown
797b6a63fc fixup 2019-03-13 01:17:51 +11:00
Andrew Morgan
0ea8582f8b Cleaner way of implementing trailing slashes 2019-03-12 14:11:11 +00:00
Amber Brown
d306bd1b26 fixup 2019-03-12 22:38:01 +11:00
Amber Brown
10480c4348 fixup 2019-03-12 21:47:14 +11:00
Andrew Morgan
4868b12029 and again 2019-03-11 18:22:26 +00:00
Andrew Morgan
802cb5dcf0 Fix syntax error 2019-03-11 18:08:28 +00:00
Andrew Morgan
66f205e93d We're calling different functions now 2019-03-11 18:01:58 +00:00
Andrew Morgan
290552fd83
Make federation endpoints more tolerant of trailing slashes for some endpoints (#4793)
Server side of a solution towards #3622.
2019-03-11 17:44:03 +00:00
Amber Brown
5ba8ceab4c fixes 2019-03-12 00:35:31 +11:00
Amber Brown
26eefca3b7 setup master 2019-03-11 21:16:10 +11:00
Amber Brown
30a8deeb68 Merge remote-tracking branch 'origin/develop' into hawkowl/userdir-search 2019-03-11 21:12:30 +11:00
Amber Brown
4abc988c6a
initial 2019-03-11 21:11:36 +11:00
Andrew Morgan
d6e0be92fe
Disable captcha registration by default in tests 2019-03-08 15:49:38 +00:00
Amber Brown
f6135d06cf
Rewrite userdir to be faster (#4537) 2019-03-07 01:22:53 -08:00
Erik Johnston
16c8b4ecbd
Merge pull request #4772 from jbweston/jbweston/server-version-api
Add 'server_version' endpoint to admin API
2019-03-05 16:31:00 +00:00
Brendan Abolivier
a4c3a361b7
Add rate-limiting on registration (#4735)
* Rate-limiting for registration

* Add unit test for registration rate limiting

* Add config parameters for rate limiting on auth endpoints

* Doc

* Fix doc of rate limiting function

Co-Authored-By: babolivier <contact@brendanabolivier.com>

* Incorporate review

* Fix config parsing

* Fix linting errors

* Set default config for auth rate limiting

* Fix tests

* Add changelog

* Advance reactor instead of mocked clock

* Move parameters to registration specific config and give them more sensible default values

* Remove unused config options

* Don't mock the rate limiter un MAU tests

* Rename _register_with_store into register_with_store

* Make CI happy

* Remove unused import

* Update sample config

* Fix ratelimiting test for py2

* Add non-guest test
2019-03-05 14:25:33 +00:00
Richard van der Hoff
2c3548d9d8
Update test_typing to use HomeserverTestCase. (#4771) 2019-03-04 10:05:39 +00:00
Joseph Weston
1e8388b311 Add 'server_version' endpoint to admin API
This is required because the 'Server' HTTP header is not always
passed through proxies.
2019-03-01 09:56:58 +01:00
Joseph Weston
b136ee10df Import 'admin' module rather than 'register_servlets' directly
We will later need also to import 'register_servlets' from the
'login' module, so we un-pollute the namespace now to keep the
logical changes separate.
2019-03-01 09:46:25 +01:00
Richard van der Hoff
68f47d6744 Fix parsing of Content-Disposition headers (#4763)
* Fix parsing of Content-Disposition headers

TIL: filenames in content-dispostion headers can contain semicolons, and aren't
%-encoded.

* fix python2 incompatibility

* Fix docstrings
2019-02-27 14:29:10 -08:00
Amber Brown
f2a753ea38
Move from TravisCI to BuildKite (#4752) 2019-02-27 13:03:14 -08:00
Erik Johnston
d4dc527a1a Fix unit tests 2019-02-27 14:24:45 +00:00
Amber Brown
a06614bd2a
UPSERT many functionality (#4644) 2019-02-20 23:03:30 +11:00
Erik Johnston
dbdc565dfd Fix registration on workers (#4682)
* Move RegistrationHandler init to HomeServer

* Move post registration actions to RegistrationHandler

* Add post regisration replication endpoint

* Newsfile
2019-02-20 18:47:31 +11:00
Erik Johnston
af691e415c Move register_device into handler 2019-02-18 16:49:38 +00:00
Erik Johnston
41c3f21c3b Fix unit tests 2019-02-18 13:43:16 +00:00
Erik Johnston
cb12a37708 Clarify and fix behaviour when there are multiple aliases 2019-02-14 18:16:32 +00:00
Erik Johnston
eaf4d11af9 Add configurable room list publishing rules
This allows specifying who and what is allowed to be published onto the
public room list
2019-02-14 16:02:23 +00:00
Richard van der Hoff
32b781bfe2
Fix error when loading cert if tls is disabled (#4618)
If TLS is disabled, it should not be an error if no cert is given.

Fixes #4554.
2019-02-12 10:51:31 +00:00
Richard van der Hoff
0ca2908653 fix tests 2019-02-11 22:01:27 +00:00
Richard van der Hoff
5d27730a73
Move ClientTLSOptionsFactory init out of refresh_certificates (#4611)
It's nothing to do with refreshing the certificates. No idea why it was here.
2019-02-11 18:03:30 +00:00
Erik Johnston
719e073f00
Merge pull request #4580 from matrix-org/uhoreg/e2e_backup_add_updating
add updating of backup versions
2019-02-11 13:45:49 +00:00
Erik Johnston
b201149c7e
Merge pull request #4420 from matrix-org/jaywink/openid-listener
New listener resource for the federation API "openid/userinfo" endpoint
2019-02-11 09:44:00 +00:00
Hubert Chathi
afae8442b5 make sure version is in body and wrap in linearizer queue
also add tests
2019-02-08 01:32:45 -05:00
Richard van der Hoff
8a21b03fba Treat an invalid .well-known the same as an absent one
... basically, carry on and fall back to SRV etc.
2019-02-01 11:37:31 +00:00
Richard van der Hoff
d428b46346 Update federation routing logic to check .well-known before SRV 2019-01-31 23:14:18 +00:00
Erik Johnston
6587b0b89b
Merge pull request #4472 from matrix-org/neilj/room_capabilities
Server capabilities support
2019-01-30 14:26:56 +00:00
Richard van der Hoff
c7b24ac3d0
Follow redirects on .well-known (#4520) 2019-01-30 11:43:33 +00:00
Richard van der Hoff
bc5f6e1797
Add a caching layer to .well-known responses (#4516) 2019-01-30 10:55:25 +00:00
Amber Brown
3f189c902e
Fix flake8 (#4519) 2019-01-30 10:53:17 +00:00
Neil Johnson
ee4df7fd7a
Merge branch 'develop' into neilj/room_capabilities 2019-01-30 10:28:08 +00:00