Should fix the following issues or make a lot less worse when using
Postgres:
The main issue behind #2911: The client gives up after a certain time,
causing a cascade of context errors, because the response couldn't be
built up fast enough. This mostly happens on accounts with many rooms,
due to the inefficient way we're getting recent events and current state
For #2777: The queries for getting the membership events for history
visibility were being executed for each room (I think 185?), resulting
in a whooping 2k queries for membership events. (Getting the
statesnapshot -> block nids -> actual wanted membership event)
Both should now be better by:
- Using a LATERAL join to get all recent events for all joined rooms in
one go (TODO: maybe do the same for room summary and current state etc)
- If we're lazy loading on initial syncs, we're now not getting the
whole current state, just to drop the majority of it because we're lazy
loading members - we add a filter to exclude membership events on the
first call to `CurrentState`.
- Using an optimized query to get the membership events needed to
calculate history visibility
---------
Co-authored-by: kegsay <kegan@matrix.org>
This adds a new admin endpoint `/_dendrite/admin/purgeRoom/{roomID}`. It
completely erases all database entries for a given room ID.
The roomserver will start by clearing all data for that room and then
will generate an output event to notify downstream components (i.e. the
sync API and federation API) to do the same.
It does not currently clear media and it is currently not implemented
for SQLite since it relies on SQL array operations right now.
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Co-authored-by: Till Faelligen <2353100+S7evinK@users.noreply.github.com>
The stale device lists table might contain entries for users we don't
share a room with anymore. This now asks the roomserver about left users
and removes those entries from the table.
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This optimizes history visibility checks by (mostly) avoiding database
hits.
Possibly solves https://github.com/matrix-org/dendrite/issues/2777
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Adds `PUT
/_matrix/client/v3/directory/list/appservice/{networkId}/{roomId}` and
`DELTE
/_matrix/client/v3/directory/list/appservice/{networkId}/{roomId}`
support, as well as the ability to filter `/publicRooms` on networkID
and including all networks.
* Reprocess outliers that were previously rejected
* Might as well do all events this way
* More useful errors
* Fix queries
* Tweak condition
* Don't wrap errors
* Report more useful error
* Flatten error on `r.Queryer.QueryStateAfterEvents`
* Some more debug logging
* Flatten error in `QueryRestrictedJoinAllowed`
* Revert "Flatten error in `QueryRestrictedJoinAllowed`"
This reverts commit 1238b4184c.
* Tweak `QueryStateAfterEvents`
* Handle MissingStateError too
* Scope to room
* Clean up
* Fix the error
* Only apply rejection check to outliers
* Try optimising checking if server is allowed to see event
* Fix error
* Handle case where snapshot NID is 0
* Fix query
* Update SQL
* Clean up `CheckServerAllowedToSeeEvent`
* Not supported on SQLite
* Maybe placate the unit tests
* Review comments
* Membership updater refactoring
* Pass in membership state
* Use membership check rather than referring to state directly
* Delete irrelevant membership states
* We don't need the leave event after all
* Tweaks
* Put a log entry in that I might stand a chance of finding
* Be less panicky
* Tweak invite handling
* Don't freak if we can't find the event NID
* Use event NID from `types.Event`
* Clean up
* Better invite handling
* Placate the almighty linter
* Blacklist a Sytest which is otherwise fine under Complement for reasons I don't understand
* Fix the sytest after all (thanks @S7evinK for the spot)
* Fix flakey sytest 'Local device key changes get to remote servers'
* Debug logs
* Remove internal/test and use /test only
Remove a lot of ancient code too.
* Use FederationRoomserverAPI in more places
* Use more interfaces in federationapi; begin adding regression test
* Linting
* Add regression test
* Unbreak tests
* ALL THE LOGS
* Fix a race condition which could cause events to not be sent to servers
If a new room event which rewrites state arrives, we remove all joined hosts
then re-calculate them. This wasn't done in a transaction so for a brief period
we would have no joined hosts. During this interim, key change events which arrive
would not be sent to destination servers. This would sporadically fail on sytest.
* Unbreak new tests
* Linting
* Add Room Aliases tests
* Add Rooms table test
* Move StateKeyTuplerSorter to the types package
* Add StateBlock tests
Some optimizations
* Add State Snapshot tests
Some optimization
* Return []int64 and convert to pq.Int64Array for postgres
* Move []types.EventNID back to rows.Next()
* Update tests, rename SelectRoomIDs
* Add EventJSONTable tests
* Add eventJSON tests
* Add EventStateKeysTable tests
* Add EventTypesTable tests
* Add Events Table tests
Move variable declaration outside loops
Switch to testify/assert for tests
* Move variable declaration outside loop
* Remove random data
* Fix issue where the EventReferenceSHA256 is not set
* Add more tests
* Revert "Fix issue where the EventReferenceSHA256 is not set"
This reverts commit 8ae34c4e5f.
* Update GMSL
* Add tests for duplicate entries
* Test what happens if we select non-existing NIDs
* Add test for non-existing eventType
* Really update GMSL
* Only add events to `add_state_events` that haven't already been sent to the roomserver output before
* Filter on event NIDs instead, hopefully bring joy to SQLite
* UnsentFilter, review comments
* Add transaction to all database tables in roomserver, rename latest events updater to room updater, use room updater for all RS input
* Better transaction management
* Tweak order
* Handle cases where the room does not exist
* Other fixes
* More tweaks
* Fill some gaps
* Fill in the gaps
* good lord it gets worse
* Don't roll back transactions when events rejected
* Pass through errors properly
* Fix bugs
* Fix incorrect error check
* Don't panic on nil txns
* Tweaks
* Hopefully fix panics for good in SQLite this time
* Fix rollback
* Minor bug fixes with latest event updater
* Some review comments
* Revert "Some review comments"
This reverts commit 0caf8cf53e.
* Fix a couple of bugs
* Clearer commit and rollback results
* Remove unnecessary prepares
* Topologically sort outliers in SendEventWithState
* Knock in membership updater
* Update gomatrixserverlib
* Update gomatrixserverlib
* Get the NID of the knock event properly for the membership updater
* Add more optimised code path for checking if we're in a room
* Fix database queries
* Fix federation API test
* Fix logging
* Review comments
* Make separate API call for room membership
* Hash-deduplicated state storage (and migrations) for PostgreSQL and SQLite
* Refactor droomserver database setup for migrations
* Fix conflict statements
* Update migration names
* Set a boundary for old to new block/snapshot IDs so we don't rewrite them more than once accidentally
* Create sequence if not exists
* Fix boundary queries
* Fix boundary queries
* Use Query
* Break out queries a bit
* More sequence tweaks
* Query parameters are not playing the game
* Injection escaping may not work for CREATE SEQUENCE after all
* Fix snapshot sequence name
* Use boundaried IDs in SQLite too
* Use IFNULL for SQLite
* Use COALESCE in PostgreSQL
* Review comments @Kegsay
* Hit the database far less to find room NIDs for event NIDs
* Close the rows
* Fix SQLite selectRoomNIDsForEventNIDsSQL
* Give same treatment to room version lookups
* Add basic storage methods
* Add internal api handler
* Add check for forgotten room
* Add /rooms/{roomID}/forget endpoint
* Add missing rsAPI method
* Remove unused parameters
* Add passing tests
Signed-off-by: Till Faelligen <tfaelligen@gmail.com>
* Add missing file
* Add postgres migration
* Add sqlite migration
* Use Forgetter to forget room
* Remove empty line
* Update HTTP status codes
It looks like the spec calls for these to be 400, rather than 403: https://matrix.org/docs/spec/client_server/r0.6.1#post-matrix-client-r0-rooms-roomid-forget
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* WIP Event rejection
* Still send back errors for rejected events
Instead, discard them at the federationapi /send layer rather than
re-implementing checks at the clientapi/PerformJoin layer.
* Implement rejected events
Critically, rejected events CAN cause state resolution to happen
as it can merge forks in the DAG. This is fine, _provided_ we
do not add the rejected event when performing state resolution,
which is what this PR does. It also fixes the error handling
when NotAllowed happens, as we were checking too early and needlessly
handling NotAllowed in more than one place.
* Update test to match reality
* Modify InputRoomEvents to no longer return an error
Errors do not serialise across HTTP boundaries in polylith mode,
so instead set fields on the InputRoomEventsResponse. Add `Err()`
function to make the API shape basically the same.
* Remove redundant returns; linting
* Update blacklist
* Remove QueryBulkStateContent from current state server
Expected fail due to db impl not existing
* Implement query bulk state content
* Fix up rejecting invites over federation
* Fix bulk content marshalling
* Move currentstateserver API to roomserver
Stub out DB functions for now, nothing uses the roomserver version yet.
* Allow it to startup
* Implement some current-state-server storage interface functions
* Add missing package
* Per-room input mutex
* GetMembership should use transaction when assigning state key NID
* Actually use writer transactions rather than ignoring them
* Limit per-room mutexes to Postgres
* Flip the check in InputRoomEvents
* Emit redacted_event from the roomserver when redactions are validated
- Consume them in the currentstateserver and act accordingly.
- Add integration test for the roomserver to check that injecting
`m.room.redaction` events result in `redacted_event` being emitted.
* Linting
* Ignore events that redact themselves
* Implement core redaction logic
- Add a new `redactions_table.go` which tracks the mapping of
the redaction event ID and the redacted event ID
- Mark redactions as 'validated' when we have both events.
- When redactions are validated, add `unsigned.redacted_because`
and modify the `eventJSON` accordingly.
Note: We currently do NOT redact the event content - it's gated
behind a feature flag - until we have tested redactions a bit more.
* Linting
* Use content_value instead of membership
* Fix build
* Replace publicroomsapi with a combination of clientapi/roomserver/currentstateserver
- All public rooms paths are now handled by clientapi
- Requests to (un)publish rooms are sent to the roomserver via `PerformPublish`
which are stored in a new `published_table.go`
- Requests for public rooms are handled in clientapi by:
* Fetch all room IDs which are published using `QueryPublishedRooms` on the roomserver.
* Apply pagination parameters to the slice.
* Do a `QueryBulkStateContent` request to the currentstateserver to pull out
required state event *content* (not entire events).
* Aggregate and return the chunk.
Mostly but not fully implemented (DB queries on currentstateserver are missing)
* Fix pq query
* Make postgres work
* Make sqlite work
* Fix tests
* Unbreak pagination tests
* Linting
