* Remove error when state keys are missing for user NIDs
There is still an actual bug here somewhere in the membership updater, but this check does more harm than good, since it means that the key consumers don't actually distribute updates to *anyone*. It's better just to deal with this silently for now.
To find these broken rows:
```
SELECT * FROM roomserver_membership AS m WHERE NOT EXISTS (
SELECT event_state_key_nid FROM roomserver_event_state_keys AS s
WHERE m.sender_nid = s.event_state_key_nid
);
```
* Logging
* Don't proactively cache event types and state keys when we don't know if the transaction has persisted yet
* Remove event type and state key caches altogether
* 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
* Ensure the input API only uses a single transaction
* Remove more of the dead query API call
* Tidy up
* Fix tests hopefully
* Don't do unnecessary work for rooms that don't exist
* Improve error, fix another case where transaction wasn't used properly
* Add a unit test for checking single transaction on RS input API
* Fix logic oops when deciding whether to use a transaction in storeEvent
* Check that we have a populated state snapshot when determining if we closed the gap
* Do the same in the query API
* Use HasState more opportunistically
* Try to avoid falling down the hole of using a trustworthy but empty state snapshot for non-create events
* Refactor missing state and make sure that we really solve the problem for the new event
* Comments
* Review comments
* Tweak that check again
* Tidy up that create check further
* Fix build hopefully
* Update sendOutliers to use OrderAuthAndStateEvents
* Don't go out of bounds on missingEvents
* Revert "Revert "Fix storage bug in PSQL events table""
This reverts commit cf447dd52a.
* Membership updater to use updater
* Fix membership updater to use transactions properly
* 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
The server ACL code on startup will grab all known rooms from
the rooms_table and then call `GetStateEvent` with each found
room ID to find the server ACL event. This can fail for stub
rooms, which will be present in the rooms table. Previously
this would result in an error being returned and the server
failing to start (!). Now we just return no event for stub
rooms.
* 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
* Generate m.room.canonical_alias instead of legacy m.room.aliases
* Add omitempty tags
* Add aliases endpoint to client API
* Check power levels when setting aliases
* Don't return null on /aliases
* Don't return error if the state event fails
* Update sytest-whitelist
* Don't send updated m.room.canonical_alias events
* Don't check PLs after all because for local aliases they are apparently irrelevant
* Fix some bugs
* Allow deleting a local alias with enough PL
* Fix some more bugs
* Update sytest-whitelist
* Fix copyright notices
* Review comments
* Add room membership and powerlevel checks for func SendBan
* Added non-error return to func GetStateEvent when no state events with the specified state key are found
* Add passing tests to whitelist
* Fixed formatting
* Update roomserver/storage/shared/storage.go
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Co-authored-by: kegsay <kegan@matrix.org>
Co-authored-by: kegsay <kegsay@gmail.com>
* 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
* Add RoomInfo cache, remove RoomServerRoomNID cache, ensure caches are thread-safe
* Don't panic if the roomInfo isn't known yet
* LRU package is already threadsafe
* Use RoomInfo cache to find room version if possible in Events()
* Adding comments about RoomInfoCache safety
* 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
* Don't recalculate event IDs so often
* Revert invite change
* Make sure we're using the right NIDs
* Update gomatrixserverlib
* Update to NewEventFromTrustedJSONWithEventID
* Fix go.mod
* Update gomatrixserverlib to matrix-org/gomatrixserverlib#243
* Use BulkSelectEventID
* 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>
* Fix sqite locking bugs present on sytest
Comments do the explaining.
* Fix deadlock in sqlite mode
Caused by starting a writer whilst within a writer
* Only complain about invalid state deltas for non-overwrite events
* Do not re-process outlier unnecessarily
* Deep forward extremity calculation
* Use updater txn
* Update error
* Update error
* Create previous event references in StoreEvent
* Use latest events updater to row-lock prev events
* Fix unexpected fallthrough
* Fix deadlock
* Don't roll back
* Update comments in calculateLatest
* Don't include events that we can't find references for in the forward extremities
* Add another passing test
* 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
* Initial work on roomserver NID caches
* Give caches to roomserver storage
* Populate caches
* Fix bugs
* Fix WASM build
* Don't hit cache twice in RoomNIDExcludingStubs
* Store reverse room ID-room NID mapping, consult caches when assigning NIDs
* Offset updates take place using TransactionWriter
* Refactor TransactionWriter in current state server
* Refactor TransactionWriter in federation sender
* Refactor TransactionWriter in key server
* Refactor TransactionWriter in media API
* Refactor TransactionWriter in server key API
* Refactor TransactionWriter in sync API
* Refactor TransactionWriter in user API
* Fix deadlocking Sync API tests
* Un-deadlock device database
* Fix appservice API
* Rename TransactionWriters to Writers
* Move writers up a layer in sync API
* Document sqlutil.Writer interface
* Add note to Writer documentation
* 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
