Based on #2480
This actually indexes events based on their event type. They are removed
from the index if we receive a `m.room.redaction` event on the
`OutputRoomEvent` stream.
An admin endpoint is added to reindex all existing events.
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This PR changes the handling of notifications
- removes the `StreamEvent` and `ReadUpdate` stream
- listens on the `OutputRoomEvent` stream in the UserAPI to inform the
SyncAPI about unread notifications
- listens on the `OutputReceiptEvent` stream in the UserAPI to set
receipts/update notifications
- sets the `read_markers` directly from within the internal UserAPI
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Beforehand we disabled HTTP keepalives to prevent ambient system
resources from being used by excess idle connections. Now that we've
fixed some bugs in the federation API and device list updater, this
situation is now much better and we don't open so many remote
connections anyway.
Keepalives allow us to not have to handshake TLS so often (which is
quite expensive) and reusing an idle connection is much faster than
having to open a new one. This can help with response times when talking
to remote federated servers.
This PR also adds a new option to disable keepalives if needed:
```
# Disable HTTP keepalives, which also prevents connection reuse. Dendrite will typically
# keep HTTP connections open to remote hosts for 5 minutes as they can be reused much
# more quickly than opening new connections each time. Disabling keepalives will close
# HTTP connections immediately after a successful request but may result in more CPU and
# memory being used on TLS handshakes for each new connection instead.
disable_http_keepalives: false
```
This adds the main component of the fulltext search.
This PR doesn't do anything yet, besides creating an empty fulltextindex
folder if enabled. Indexing events is done in a separate PR.
This makes the following changes:
* The various `Defaults` functions are now responsible for setting sane defaults if `generate` is specified, rather than hiding them in `generate-config`
* Some configuration options have been marked as `omitempty` so that they don't appear in generated configs unnecessarily (monolith-specific vs. polylith-specific options)
* A new option `-polylith` has been added to `generate-config` to create a config that makes sense for polylith deployments (i.e. including the internal/external API listeners and per-component database sections)
* A new option `-normalise` has been added to `generate-config` to take an existing file and add any missing options and/or defaults
This PR refactors the app services component. It makes the following changes:
* Each appservice now gets its own NATS JetStream consumer
* The appservice database is now removed entirely, since we just use JetStream as a data source instead
* The entire component is now much simpler and we deleted lots of lines of code 💅
The result is that it should be much lighter and hopefully much more performant.
This refactors the `dendrite-demo-pinecone` executable so that it:
1. Converts the old `.key` file into a standard `.pem` file
2. Allows passing in the `--config` option to supply a normal Dendrite configuration file, so that you can configure PostgreSQL instead of SQLite, appservices and all the other usual stuff
* Generic-based internal HTTP API (tested out on a few endpoints in the federation API)
* Add `PerformInvite`
* More tweaks
* Fix metric name
* Fix LookupStateIDs
* Lots of changes to clients
* Some serverside stuff
* Some error handling
* Use paths as metric names
* Revert "Use paths as metric names"
This reverts commit a9323a6a34.
* Namespace metric names
* Remove duplicate entry
* Remove another duplicate entry
* Tweak error handling
* Some more tweaks
* Update error behaviour
* Some more error tweaking
* Fix API path for `PerformDeleteKeys`
* Fix another path
* Tweak federation client proxying
* Fix another path
* Don't return typed nils
* Some more tweaks, not that it makes any difference
* Tweak federation client proxying
* Maybe fix the key backup test
* Add race testing to tests, and fix a few small race conditions in the tests
* Enable run-sytest on MacOS
* Remove deadlock detecting mutex, per code review feedback
* Remove autoformatting related changes and a closure that is not needed
* Adjust to importing nats client as 'natsclient'
Signed-off-by: Brian Meek <brian@hntlabs.com>
* Clarify the use of gooseMutex to proect goose internal state
Signed-off-by: Brian Meek <brian@hntlabs.com>
* Remove no longer needed mutex for guarding goose
Signed-off-by: Brian Meek <brian@hntlabs.com>
* Set CORS headers for the 404s
* Use custom handlers, plus one for HTTP 405 too
* Tweak setup
* Add to muxes too
* Tidy up some more
* Use built-in HTTP 404 handler
* Don't bother setting it for federation-facing
* Try Ristretto cache
* Tweak
* It's beautiful
* Update GMSL
* More strict keyable interface
* Fix that some more
* Make less panicky
* Don't enforce mutability checks for now
* Determine mutability using deep equality
* Tweaks
* Namespace keys
* Make federation caches mutable
* Update cost estimation, add metric
* Update GMSL
* Estimate cost for metrics better
* Reduce counters a bit
* Try caching events
* Some guards
* Try again
* Try this
* Use separate caches for hopefully better hash distribution
* Fix bug with admitting events into cache
* Try to fix bugs
* Check nil
* Try that again
* Preserve order jeezo this is messy
* thanks VS Code for doing exactly the wrong thing
* Try this again
* Be more specific
* aaaaargh
* One more time
* That might be better
* Stronger sorting
* Cache expiries, async publishing of EDUs
* Put it back
* Use a shared cache again
* Cost estimation fixes
* Update ristretto
* Reduce counters a bit
* Clean up a bit
* Update GMSL
* 1GB
* Configurable cache sizees
* Tweaks
* Add `config.DataUnit` for specifying friendly cache sizes
* Various tweaks
* Update GMSL
* Add back some lazy loading caching
* Include key in cost
* Include key in cost
* Tweak max age handling, config key name
* Only register prometheus metrics if requested
* Review comments @S7evinK
* Don't return errors when creating caches (it is better just to crash since otherwise we'll `nil`-pointer exception everywhere)
* Review comments
* Update sample configs
* Update GHA Workflow
* Update Complement images to Go 1.18
* Remove the cache test from the federation API as we no longer guarantee immediate cache admission
* Don't check the caches in the renewal test
* Possibly fix the upgrade tests
* Update to matrix-org/gomatrixserverlib#322
* Update documentation to refer to Go 1.18
* Rate limiting changes
This makes the following changes:
* For logged in users, the rate limiting now applies to the device session rather than the remote IP address;
* For non-logged in users, the rate limiting continues to apply to remote address as it does today;
* It is now possible to add user IDs to the `exempt_user_ids` option under `rate_limiting` to exclude bots from rate limiting;
* Admin and appservice users are now exempt from rate limiting by default.
* Fix build with media API
* Add very basic syncapi tests
* Add a way to inject jetstream messages
* implement add_state_ids
* bugfixes
* Unbreak tests
* Remove now un-needed API call
* Linting
* tidy up interfaces
* remove unused GetCreatorIDForAlias
* Add RoomserverUserAPI interface
* Define more interfaces
* Use AppServiceInternalAPI for consistent naming
* clean up federationapi constructor a bit
* Fix monolith in -http mode
* syncapi: use finer-grained interfaces when making the syncapi
* Use specific interfaces for syncapi-roomserver interactions
* Define query access token api for shared http auth code
* Initial phone home stats queries
* Add userAgent to UpdateDeviceLastSeen
Add new Table for tracking daily user vists
* Add user_daily_visits table
* Fix queries
* userapi stats tables & queries
* userapi interface and internal api
* sycnapi stats queries
* testing phone home stats
* Add complete config to syncapi
* add missing files
* Fix queries
* Send empty request
* Add version & monolith stats
* Add configuration for phone home stats
* Move WASM to its own file, add config and comments
* Add tracing methods
* Add total rooms
* Add more fields, actually send data somewhere
* Move stats to the userapi
* Move phone home stats to util package
* Cleanup
* Linter & parts of GH comments
* More GH comments changes
- Move comments to SQL statements
- Shrink interface, add struct for stats
- No fatal errors, use defaults
* Be more explicit when querying
* Fix wrong calculation & wrong query params
Add tests
* Add Windows stats
* ADd build constraint
* Use new testing structure
Fix issues with getting values when using SQLite
Fix wrong AddDate value
Export UpdateUserDailyVisits
* Fix query params
* Fix test
* Add comment about countR30UsersSQL and countR30UsersV2SQL; fix test
* Update config
* Also update example config file
* Use OS level proxy, update logging
Co-authored-by: kegsay <kegan@matrix.org>
* Simplify federation API `AddPublicRoutes`
* Simplify client API `AddPublicRoutes`
* Simplify media API `AddPublicRoutes`
* Simplify sync API `AddPublicRoutes`
* Simplify `AddAllPublicRoutes`
* Add restrications for open registration
* Make enable open registration a parameter
* Enable registration for CI
* Update error message
* Shuffle things around a bit
* Add a warning at every startup just to be extra annoying
* Ignore shared secret when warning about open registration, since it's not strictly required when it is set if registration is otherwise enabled
* Make CI happy?
* Add missing parameter; try new parameter in upgrade-test
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Add new endpoint to allow admins to evacuate the local server from the room
* Guard endpoint
* Use right prefix
* Auth API
* More useful return error rather than a panic
* More useful return value again
* Update the path
* Try using inputer instead
* oh provide the config
* Try that again
* Return affected user IDs
* Don't create so many forward extremities
* Add missing `Path` to name
Co-authored-by: Till <2353100+S7evinK@users.noreply.github.com>
* Add test infrastructure code for dendrite unit/integ tests
Start re-enabling some syncapi storage tests in the process.
* Linting
* Add postgres service to unit tests
* dendrite not syncv3
* Skip test which doesn't work
* Linting
* Add `jetstream.PrepareForTests`
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Remove all federation_certificates occurencs
This configuration value has not been used since 2019 apparently, and indeed
it is never really used in the code base. So remove all traces of it from
the various configuration files.
Also remove the unused variable FederationCertificatePaths
Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
* setup/config/config_test.go: remove federation_sender config snippet
The federation_sender: section was folded into the federation_api some
time ago, and this seems to be the only leftover in the code base.
So remove it.
* Move receipt sending to own JetStream producer
* Move SendToDevice to producer
* Remove most parts of the EDU server
* Fix SendToDevice & copyrights
* Move structs, cleanup EDU Server traces
* Use HeadersOnly subscription
* Missing file
* Fix linter issues
* Move consumers to own files
* Rename durable consumer; Consumer cleanup
* Docs/config cleanup
* Refactor user api internal
* Refactor clientapi to use internal userapi
* Use internal userapi instead of user DB directly
* Remove AccountDB dependency
* Fix linter issues
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Roomserver input refactoring — again!
* Ensure the actor runs again
* Preserve consumer after unsubscribe
* Another sprinkling of magic
* Rename `TopicFor` to `Prefixed`
* Recreate the stream if the config is bad
* Check streams too
* Prefix subjects, preserve inboxes
* Recreate if subjects wrong
* Remove stream subject
* Reconstruct properly
* Fix mutex unlock
* Comments
* Fix tests
* Don't drop events
* Review comments
* Separate `queueInputRoomEvents` function
* Re-jig control flow a bit
* Get MSC2946 working for restricted rooms locally
* Get MSC2946 working for restricted rooms over federation
* Allow invited in addition to joined to enable child walking
* Add Pushserver component with Pushers API
Co-authored-by: Tommie Gannert <tommie@gannert.se>
Co-authored-by: Dan Peleg <dan@globekeeper.com>
* Wire Pushserver component
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Add PushGatewayClient.
The full event format is required for Sytest.
* Add a pushrules module.
* Change user API account creation to use the new pushrules module's defaults.
Introduces "scope" as required by client API, and some small field
tweaks to make some 61push Sytests pass.
* Add push rules query/put API in Pushserver.
This manipulates account data over User API, and fires sync messages
for changes. Those sync messages should, according to an existing TODO
in clientapi, be moved to userapi.
Forks clientapi/producers/syncapi.go to pushserver/ for later extension.
* Add clientapi routes for push rules to Pushserver.
A cleanup would be to move more of the name-splitting logic into
pushrules.go, to depollute routing.go.
* Output rooms.join.unread_notifications in /sync.
This is the read-side. Pushserver will be the write-side.
* Implement pushserver/storage for notifications.
* Use PushGatewayClient and the pushrules module in Pushserver's room consumer.
* Use one goroutine per user to avoid locking up the entire server for
one bad push gateway.
* Split pushing by format.
* Send one device per push. Sytest does not support coalescing
multiple devices into one push. Matches Synapse. Either we change
Sytest, or remove the group-by-url-and-format logic.
* Write OutputNotificationData from push server. Sync API is already
the consumer.
* Implement read receipt consumers in Pushserver.
Supports m.read and m.fully_read receipts.
* Add clientapi route for /unstable/notifications.
* Rename to UpsertPusher for clarity and handle pusher update
* Fix linter errors
* Ignore body.Close() error check
* Fix push server internal http wiring
* Add 40 newly passing 61push tests to whitelist
* Add next 12 newly passing 61push tests to whitelist
* Send notification data before notifying users in EDU server consumer
* NATS JetStream
* Goodbye sarama
* Fix `NewStreamTokenFromString`
* Consume on the correct topic for the roomserver
* Don't panic, NAK instead
* Move push notifications into the User API
* Don't set null values since that apparently causes Element upsetti
* Also set omitempty on conditions
* Fix bug so that we don't override the push rules unnecessarily
* Tweak defaults
* Update defaults
* More tweaks
* Move `/notifications` onto `r0`/`v3` mux
* User API will consume events and read/fully read markers from the sync API with stream positions, instead of consuming directly
Co-authored-by: Piotr Kozimor <p1996k@gmail.com>
Co-authored-by: Tommie Gannert <tommie@gannert.se>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Initial cut at fixing up MSC2946 to work with latest spec
* bugfix: send response back correctly
* Initial working version of MSC2946
* msc2946: handle suggested_only; remove custom database
As the MSC doesn't require reverse lookups, we can just pull
the room state and inspect via the roomserver database. To
handle this, expand QueryCurrentState to support wildcards.
Use all this and handle `?suggested_only`.
* Sort child rooms
* msc2946: Make TestClientSpacesSummary pass
* msc2946: allow invited rooms to be spidered
* msc2946: support basic federation requests
* fix up go mod
* Topologically sort with `SendEventWithState`, so that earlier events should satisfy auth for later ones
* Revert "Topologically sort with `SendEventWithState`, so that earlier events should satisfy auth for later ones"
This reverts commit b0cd706012.
* Update to matrix-org/gomatrixserverlib#293
* `Events` no longer returns an error, other tweaks
* Make sure `Events` is sorted for `parsedRespState` too
* Add server_notices config
* Disallow rejecting "server notice" invites
* Update config
* Slightly refactor sendEvent and CreateRoom so it can be reused
* Implement unspecced server notices
* Validate the request
* Set the user api when starting
* Rename function/variables
* Update comments
* Update config
* Set the avatar on account creation
* Update test
* Only create the account when starting
Only add routes if sever notices are enabled
* Use reserver username
Check that we actually got roomData
* Add check for admin account
Enable server notices for CI
Return same values as Synapse
* Add custom error for rejecting server notice invite
* Move building an invite to it's own function, for reusability
* Don't create new rooms, use the existing one (follow Synapse behavior)
Co-authored-by: kegsay <kegan@matrix.org>
* Merge user API databases into one
* Remove DeviceDatabase from config
* Fix tests
* Try that again
* Clean up keyserver device keys when the devices no longer exist in the user API
* Tweak ordering
* Fix UserExists flag, device check
* Allow including empty entries so we can clean them up
* Remove logging
* Use new event json types in gmsl
* Fix EventJSON to actually unmarshal events
* Update GMSL
* Bump GMSL and improve error messages
* Send back the correct RespState
* Update GMSL
* Remove dependency on saramajetstream & sarama
Signed-off-by: Till Faelligen <tfaelligen@gmail.com>
* Remove internal.ContinualConsumer from federationapi
* Remove internal.ContinualConsumer from syncapi
* Remove internal.ContinualConsumer from keyserver
* Move to new Prepare function
* Remove saramajetstream & sarama dependency
* Delete unneeded file
* Remove duplicate import
* Log error instead of silently irgnoring it
* Move `OffsetNewest` and `OffsetOldest` into keyserver types, change them to be more sane values
* Fix comments
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Put federation client functions into their own file
* Look for missing auth events in RS input
* Remove retrieveMissingAuthEvents from federation API
* Logging
* Sorta transplanted the code over
* Use event origin failing all else
* Don't get stuck on mutexes:
* Add verifier
* Don't mark state events with zero snapshot NID as not existing
* Check missing state if not an outlier before storing the event
* Reject instead of soft-fail, don't copy roominfo so much
* Use synchronous contexts, limit time to fetch missing events
* Clean up some commented out bits
* Simplify `/send` endpoint significantly
* Submit async
* Report errors on sending to RS input
* Set max payload in NATS to 16MB
* Tweak metrics
* Add `workerForRoom` for tidiness
* Try skipping unmarshalling errors for RespMissingEvents
* Track missing prev events separately to avoid calculating state when not possible
* Tweak logic around checking missing state
* Care about state when checking missing prev events
* Don't check missing state for create events
* Try that again
* Handle create events better
* Send create room events as new
* Use given event kind when sending auth/state events
* Revert "Use given event kind when sending auth/state events"
This reverts commit 089d64d271.
* Only search for missing prev events or state for new events
* Tweaks
* We only have missing prev if we don't supply state
* Room version tweaks
* Allow async inputs again
* Apply backpressure to consumers/synchronous requests to hopefully stop things being overwhelmed
* Set timeouts on roomserver input tasks (need to decide what timeout makes sense)
* Use work queue policy, deliver all on restart
* Reduce chance of duplicates being sent by NATS
* Limit the number of servers we attempt to reduce backpressure
* Some review comment fixes
* Tidy up a couple things
* Don't limit servers, randomise order using map
* Some context refactoring
* Update gmsl
* Don't resend create events
* Set stateIDs length correctly or else the roomserver thinks there are missing events when there aren't
* Exclude our own servername
* Try backing off servers
* Make excluding self behaviour optional
* Exclude self from g_m_e
* Update sytest-whitelist
* Update consumers for the roomserver output stream
* Remember to send outliers for state returned from /gme
* Make full HTTP tests less upsetti
* Remove 'If a device list update goes missing, the server resyncs on the next one' from the sytest blacklist
* Remove debugging test
* Fix blacklist again, remove unnecessary duplicate context
* Clearer contexts, don't use background in case there's something happening there
* Don't queue up events more than once in memory
* Correctly identify create events when checking for state
* Fill in gaps again in /gme code
* Remove `AuthEventIDs` from `InputRoomEvent`
* Remove stray field
Co-authored-by: Kegan Dougal <kegan@matrix.org>
* Use named NATS durable consumers
* Build fixes
* Remove dupe call to SetFederationAPI
* Use namespaced consumer name
* Fix namespacing
* Fix unit tests hopefully
* Add NATS JetStream support
Update shopify/sarama
* Fix addresses
* Don't change Addresses in Defaults
* Update saramajetstream
* Add missing error check
Keep typing events for at least one minute
* Use all configured NATS addresses
* Update saramajetstream
* Try setting up with NATS
* Make sure NATS uses own persistent directory (TODO: make this configurable)
* Update go.mod/go.sum
* Jetstream package
* Various other refactoring
* Build fixes
* Config tweaks, make random jetstream storage path for CI
* Disable interest policies
* Try to sane default on jetstream base path
* Try to use in-memory for CI
* Restore storage/retention
* Update nats.go dependency
* Adapt changes to config
* Remove unneeded TopicFor
* Dep update
* Revert "Remove unneeded TopicFor"
This reverts commit f5a4e4a339.
* Revert changes made to streams
* Fix build problems
* Update nats-server
* Update go.mod/go.sum
* Roomserver input API queuing using NATS
* Fix topic naming
* Prometheus metrics
* More refactoring to remove saramajetstream
* Add missing topic
* Don't try to populate map that doesn't exist
* Roomserver output topic
* Update go.mod/go.sum
* Message acknowledgements
* Ack tweaks
* Try to resume transaction re-sends
* Try to resume transaction re-sends
* Update to matrix-org/gomatrixserverlib@91dadfb
* Remove internal.PartitionStorer from components that don't consume keychanges
* Try to reduce re-allocations a bit in resolveConflictsV2
* Tweak delivery options on RS input
* Publish send-to-device messages into correct JetStream subject
* Async and sync roomserver input
* Update dendrite-config.yaml
* Remove roomserver tests for now (they need rewriting)
* Remove roomserver test again (was merged back in)
* Update documentation
* Docker updates
* More Docker updates
* Update Docker readme again
* Fix lint issues
* Send final event in `processEvent` synchronously (since this might stop Sytest from being so upset)
* Don't report event rejection errors via `/send`, since apparently this is upsetting tests that don't expect that
* Go 1.16 instead of Go 1.13 for upgrade tests and Complement
* Revert "Don't report event rejection errors via `/send`, since apparently this is upsetting tests that don't expect that"
This reverts commit 368675283f.
* Don't report any errors on `/send` to see what fun that creates
* Fix panics on closed channel sends
* Enforce state key matches sender
* Do the same for leave
* Various tweaks to make tests happier
Squashed commit of the following:
commit 13f9028e7a
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Tue Jan 4 15:47:14 2022 +0000
Do the same for leave
commit e6be7f05c3
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Tue Jan 4 15:33:42 2022 +0000
Enforce state key matches sender
commit 85ede6d64b
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Tue Jan 4 14:07:04 2022 +0000
Fix panics on closed channel sends
commit 9755494a98
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Tue Jan 4 13:38:22 2022 +0000
Don't report any errors on `/send` to see what fun that creates
commit 3bb4f87b5d
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Tue Jan 4 13:00:26 2022 +0000
Revert "Don't report event rejection errors via `/send`, since apparently this is upsetting tests that don't expect that"
This reverts commit 368675283f.
commit fe2673ed7b
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Tue Jan 4 12:09:34 2022 +0000
Go 1.16 instead of Go 1.13 for upgrade tests and Complement
commit 368675283f
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Tue Jan 4 11:51:45 2022 +0000
Don't report event rejection errors via `/send`, since apparently this is upsetting tests that don't expect that
commit b028dfc085
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Tue Jan 4 10:29:08 2022 +0000
Send final event in `processEvent` synchronously (since this might stop Sytest from being so upset)
* Merge in NATS Server v2.6.6 and nats.go v1.13 into the in-process connection fork
* Add `jetstream.WithJetStreamMessage` to make ack/nak-ing less messy, use process context in consumers
* Fix consumer component name in federation API
* Add comment explaining where streams are defined
* Tweaks to roomserver input with comments
* Finish that sentence that I apparently forgot to finish in INSTALL.md
* Bump version number of config to 2
* Add comments around asynchronous sends to roomserver in processEventWithMissingState
* More useful error message when the config version does not match
* Set version in generate-config
* Fix version in config.Defaults
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Initial federation sender -> federation API refactoring
* Move base into own package, avoids import cycle
* Fix build errors
* Fix tests
* Add signing key server tables
* Try to fold signing key server into federation API
* Fix dendritejs builds
* Update embedded interfaces
* Fix panic, fix lint error
* Update configs, docker
* Rename some things
* Reuse same keyring on the implementing side
* Fix federation tests, `NewBaseDendrite` can accept freeform options
* Fix build
* Update create_db, configs
* Name tables back
* Don't rename federationsender consumer for now
* Cross-signing groundwork
* Update to matrix-org/gomatrixserverlib#274
* Fix gobind builds, which stops unit tests in CI from yelling
* Some changes from review comments
* Fix build by passing in UIA
* Update to matrix-org/gomatrixserverlib@bec8d22
* Process master/self-signing keys from devices call
* nolint
* Enum-ify the key type in the database
* Process self-signing key too
* Fix sanity check in device list updater
* Fix check
* Fix sytest, hopefully
* Fix build
* Implement /_synapse/admin/v1/register
This is implemented identically to Synapse, so scripts which work
with Synapse should work with Dendrite.
```
Test 27 POST /_synapse/admin/v1/register with shared secret... OK
Test 28 POST /_synapse/admin/v1/register admin with shared secret... OK
Test 29 POST /_synapse/admin/v1/register with shared secret downcases capitals... OK
Test 30 POST /_synapse/admin/v1/register with shared secret disallows symbols... OK
```
Sytest however has `implementation_specific => "synapse"` which stops these
tests from running.
* Add missing muxes to gobind
* Linting
