* Do not store 'null' in the database for empty JSON arrays
This can cause issues, though it should be noted that the majority
of the time this will marshal/unmarshal just fine, see
https://play.golang.org/p/Doe2NZUgv7Q
* bugfix: sqlite migration should handle create events as having no 'before' snapshot
The state snapshot for any given event in the roomserver represents the state _before_
the event. For the create event, this is nothing, so the state snapshot nid should be 0.
In some cases this wasn't happening, resulting in a nice mix of possible options including:
- A state snapshot without any state blocks `[]` or `null`.
- A state snapshot with a single state block with a single event, the create event, causing
a circular loop. This is incorrect as it represents the state before the event, not after.
* Add state key check
* 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>
* bugfix: retire invites even when we cannot talk to the remote server to make/send_leave
Also modify the leave response in /sync to include a fake event as this is ultimately
what clients (and sytest) will use to determine leave-ness.
* hash the event ID
* Base64 not hex
* 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
* Logging
* Revert "Logging"
This reverts commit 23ce334182d8a70f8e0381786f9dea77a9b91ed8.
* bugfix: order the state blocks so recreating state snapshots works correctly
* db migration: fix#1844 and add additional assertions
- Migration scripts will now check to see if there are any unconverted
snapshot IDs and fail the migration if there are any. This should
prevent people from getting a corrupt database in the event the root
cause is still unknown.
- Add an ORDER BY clause when doing batch queries in the postgres
migration. LIMIT and OFFSET without ORDER BY are undefined and must
not be relied upon to produce a deterministic ordering (e.g row order).
See https://www.postgresql.org/docs/current/queries-limit.html
* Linting
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* 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
* Check membership of room
* Use QueryStateAfterEventsResponse
* Fix complexity
* Add field ShouldHitAppservice to GetRoomIDForAlias
* Hit appservice when trying to join a non-existent alias
* remove unused
* Changes that I made a long time ago
* Rename to appserviceJoinedAtEvent
* Check membership in GetMemberships
* Update QueryMembershipsForRoom
* Tweaks in client API
* Update appserviceJoinedAtEvent
* Comments
* Try QueryMembershipForUser instead
* Undo some changes to client API that shouldn't be needed
* More /event tweaks
* Refactor /event bit
* Go back to QueryMembershipsForRoom because appservices are hard
* Fix bugs in onMessage
* Add comments
* More logical naming, clean up a bit
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Check membership of room
* Use QueryStateAfterEventsResponse
* Fix complexity
* Changes that I made a long time ago
* Rename to appserviceJoinedAtEvent
* Check membership in GetMemberships
* Update QueryMembershipsForRoom
* Tweaks in client API
* Update appserviceJoinedAtEvent
* Comments
* Try QueryMembershipForUser instead
* Undo some changes to client API that shouldn't be needed
* More /event tweaks
* Refactor /event bit
* Go back to QueryMembershipsForRoom because appservices are hard
* Fix bugs in onMessage
* Add comments
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Look up servers less often, don't hit API for missing auth events unless there are actually missing auth events
* Remove ResolveConflictsAdhoc (since it is already in GMSL), other tweaks
* Update gomatrixserverlib to matrix-org/gomatrixserverlib#254
* Fix resolve-state
* Initialise t.servers on first use
MSC1772 needs this because the create event contains info on if
the room is a space or not. The create event itself isn't sensitive
so other people may find this useful too.
* a very very WIP first cut of peeking via MSC2753.
doesn't yet compile or work.
needs to actually add the peeking block into the sync response.
checking in now before it gets any bigger, and to gather any initial feedback on the vague shape of it.
* make PeekingDeviceSet private
* add server_name param
* blind stab at adding a `peek` section to /sync
* make it build
* make it launch
* add peeking to getResponseWithPDUsForCompleteSync
* cancel any peeks when we join a room
* spell out how to runoutside of docker if you want speed
* fix SQL
* remove unnecessary txn for SelectPeeks
* fix s/join/peek/ cargocult fail
* HACK: Track goroutine IDs to determine when we write by the wrong thread
To use: set `DENDRITE_TRACE_SQL=1` then grep for `unsafe`
* Track partition offsets and only log unsafe for non-selects
* Put redactions in the writer goroutine
* Update filters on writer goroutine
* wrap peek storage in goid hack
* use exclusive writer, and MarkPeeksAsOld more efficiently
* don't log ascii in binary at sql trace...
* strip out empty roomd deltas
* re-add txn to SelectPeeks
* re-add accidentally deleted field
* reject peeks for non-worldreadable rooms
* move perform_peek
* fix package
* correctly refactor perform_peek
* WIP of implementing MSC2444
* typo
* Revert "Merge branch 'kegan/HACK-goid-sqlite-db-is-locked' into matthew/peeking"
This reverts commit 3cebd8dbfbccdf82b7930b7b6eda92095ca6ef41, reversing
changes made to ed4b3a58a7855acc43530693cc855b439edf9c7c.
* (almost) make it build
* clean up bad merge
* support SendEventWithState with optional event
* fix build & lint
* fix build & lint
* reinstate federated peeks in the roomserver (doh)
* fix sql thinko
* todo for authenticating state returned by /peek
* support returning current state from QueryStateAndAuthChain
* handle SS /peek
* reimplement SS /peek to prod the RS to tell the FS about the peek
* rename RemotePeeks as OutboundPeeks
* rename remote_peeks_table as outbound_peeks_table
* add perform_handle_remote_peek.go
* flesh out federation doc
* add inbound peeks table and hook it up
* rename ambiguous RemotePeek as InboundPeek
* rename FSAPI's PerformPeek as PerformOutboundPeek
* setup inbound peeks db correctly
* fix api.SendEventWithState with no event
* track latestevent on /peek
* go fmt
* document the peek send stream race better
* fix SendEventWithRewrite not to bail if handed a non-state event
* add fixme
* switch SS /peek to use SendEventWithRewrite
* fix comment
* use reverse topo ordering to find latest extrem
* support postgres for federated peeking
* go fmt
* back out bogus go.mod change
* Fix performOutboundPeekUsingServer
* Fix getAuthChain -> GetAuthChain
* Fix build issues
* Fix build again
* Fix getAuthChain -> GetAuthChain
* Don't repeat outbound peeks for the same room ID to the same servers
* Fix lint
* Don't omitempty to appease sytest
Co-authored-by: Kegan Dougal <kegan@matrix.org>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Light-weight checking of state changes when updating forward extremities
* Only do this for non-state events, since state events will always result in state change at extremities
Squashed commit of the following:
commit e5e2d793119733ecbcf9b85f966e018ab0318741
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Wed Jan 13 17:28:12 2021 +0000
Add dendrite_roomserver_processroomevent_duration_millis to prometheus
* 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
* Update GMSL
* Add MSC2836EventRelationships to fedsender
* Call MSC2836EventRelationships in reqCtx
* auth remote servers
* Extract room ID and servers from previous events; refactor a bit
* initial cut of federated threading
* Use the right client/fed struct in the response
* Add QueryAuthChain for use with MSC2836
* Add auth chain to federated response
* Fix pointers
* under CI: more logging and enable mscs, nil fix
* Handle direction: up
* Actually send message events to the roomserver..
* Add children and children_hash to unsigned, with tests
* Add logic for exploring threads and tracking children; missing storage functions
* Implement storage functions for children
* Add fetchUnknownEvent
* Do federated hits for include_children if we have unexplored children
* Use /ev_rel rather than /event as the former includes child metadata
* Remove cross-room threading impl
* Enable MSC2836 in the p2p demo
* Namespace mscs db
* Enable msc2836 for ygg
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* 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 mscs/hooks package, begin work for msc2836
* Flesh out hooks and add SQL schema
* Begin implementing core msc2836 logic
* Add test harness
* Linting
* Implement visibility checks; stub out APIs for tests
* Flesh out testing
* Flesh out walkThread a bit
* Persist the origin_server_ts as well
* Edges table instead of relationships
* Add nodes table for event metadata
* LEFT JOIN to extract origin_server_ts for children
* Add graph walking structs
* Implement walking algorithm
* Add more graph walking tests
* Add auto_join for local rooms
* Fix create table syntax on postgres
* Add relationship_room_id|servers to the unsigned section of events
* Persist the parent room_id/servers in edge metadata
Other events cannot assert the true room_id/servers for the
parent event, only make claims to them, hence why this is
edge metadata.
* guts to pass through room_id/servers
* Refactor msc2836 to allow handling from federation
* Add JoinedVia to PerformJoin responses
* Fix tests; review comments
The previous implementation was only checking if room history was
"shared", which it wasn't for rooms where a user was invited, or world
readable rooms.
This implementation leverages the IsServerAllowed method, which already
implements the complete verification algorithm.
Signed-off-by: `Mayeul Cantan <oss+matrix@mayeul.net>`
Co-authored-by: Kegsay <kegan@matrix.org>
* 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>
* Add configuration for max_message_bytes for sarama
* Log all errors when sending multiple messages
Signed-off-by: Till Faelligen <tfaelligen@gmail.com>
* Add missing config
* - Better comments on what MaxMessageBytes is used for
- Also sets the size the consumer may use
* Set RewritesState once
* Check if any new state provided
* Obey rewritesState
* Don't nuke everything the sync API knows when purging state
* Fix panic from duplicate insert
* Consistency
* Use HasState
* Remove nolint
* Clean up joined rooms on state rewrite
* Add resolve-state helper
* Tweaks
* Refactor forward extremities, again
* Tweaks
* Minor optimisation
* Make path a bit clearer
* Only process state/membership if forward extremities have changed
* Usage comments in resolve-state
* 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
* Add KindOld
* Don't process latest events/memberships for old events
* Allow federationsender to ignore duplicate key entries when LatestEventIDs is duplicated by RS output events
* Signal to downstream components if an event has become a forward extremity
* Don't exclude from sync
* Soft-fail checks on KindNew
* Don't run the latest events updater at all for KindOld
* Don't make federation sender change after all
* Kind in federation sender join
* Don't send isForwardExtremity
* Fix syncapi
* Update comments
* Fix SendEventWithState
* Update sytest-whitelist
* Generate old output events
* Sync API consumes old room events
* Update comments
* Start Kafka connection for each component that needs one
* Fix roomserver unit tests
* Rename to naffkaInstance (@Kegsay review comment)
* Fix import cycle
* Capture errors
* Don't request only state key tuples needed for auth (we end up discarding room state this way)
* QueryStateAfterEvent returns all state when no tuples supplied
* Resolve state
* Comments
* Adjust backfill to send backward extremity with state before other backfilled events, include prev_events with no state amongst missing events
* Not finished refactor
* Fix test
* Remove isInboundTxn
* Remove debug logging
We expect to have missing events as we walk back in the DAG over federation
as we didn't always create the room. When checking if the server is allowed
to see those events, just give up and stop rather than fail the request.
* Rename serverkeyapi to signingkeyserver
We use "api" for public facing stuff and "server" for internal stuff.
As the server key API is internal only, we call it 'signing key server',
which also clarifies the type of key (as opposed to TLS keys, E2E keys, etc)
* Convert docker/scripts to use signing-key-server
* Rename missed bits
* 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
* Don't send rewrite events
* Remove final traces of rewrite events
* Remove test that is no longer needed
* Revert "Remove test that is no longer needed"
This reverts commit 9a45babff690480acd656a52f2c2950a5f7e9ada.
* Update test to use KindOutlier
* Resolve state after event against current room state when determining latest state changes
* Update sytest-whitelist
* Update sytest-whitelist, blacklist
* Try to ask other servers in the room for missing events if the origin won't provide them
* Logging
* More logging
* Implement QueryMissingAuthPrevEvents
* Try to get missing auth events badly
* Use processEvent
* Logging
* Update QueryMissingAuthPrevEvents
* Try to find missing auth events
* Patchy fix for test
* Logging tweaks
* Send auth events as outliers
* Update check in QueryMissingAuthPrevEvents
* Error responses
* More return codes
* Don't return error on reject/soft-fail since it was ultimately handled
* More tweaks
* More error tweaks
* Sanity-check room version on RS event input
* Update gomatrixserverlib
* Reject make_join when no room members are left
* Revert some changes from wrong branch
* Distinguish between room not existing and room being abandoned on this server
* nolint
* Replace all usages of txn.Stmt with sqlutil.TxStmt
Signed-off-by: Sam Day <me@samcday.com>
* Fix sign off link in PR template.
Signed-off-by: Sam Day <me@samcday.com>
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
* SendEventWithState events as new
* Use cumulative state IDs for final event
* Error wrapping in calculateAndSetState
* Handle overwriting same event type and state key
* Hacky way to spot historical events
* Don't exclude from sync
* Don't generate output events when rewriting forward extremities
* Update output event check
* Historical output events
* Define output room event type
* Notify key changes on state
* Don't send our membership event twice
* Deduplicate state entries
* Tweaks
* Remove unnecessary nolint
* Fix current state upsert in sync API
* Send auth events as outliers, state events as rewrite
* Sync API don't consume state events
* Process events actually
* Improve outlier check
* Fix local room check
* Remove extra room check, it seems to break the whole damn world
* Fix federated join check
* Fix nil pointer exception
* Better comments on DeduplicateStateEntries
* Reflow forced federated joins
* Don't force federated join for possibly even local invites
* Comment SendEventWithState better
* Rewrite room state in sync API storage
* Add TODO
* Clean up all room data when receiving create event
* Don't generate output events for rewrites, but instead notify that state is rewritten on the final new event
* Rename to PurgeRoom
* Exclude backfilled messages from /sync
* Split out rewriting state from updating state from state res
Co-authored-by: Kegan Dougal <kegan@matrix.org>
* 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
