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Roomserver/federation input refactor (#2104)

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* 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 089d64d271b5fca8c104e1554711187420dbebca.

* 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>
This commit is contained in:
Neil Alexander 2022-01-27 14:29:14 +00:00 • committed by GitHub
parent 5b4999afa9
commit a763cbb0e1
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
46 changed files with 1549 additions and 1285 deletions
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150
federationapi/internal/api.go
View file

@ -1,9 +1,9 @@
package internal
import (
"context"
"crypto/ed25519"
"encoding/base64"
"fmt"
"sync"
"time"
@ -142,7 +142,7 @@ func failBlacklistableError(err error, stats *statistics.ServerStatistics) (unti
return
}
func (a *FederationInternalAPI) doRequest(
func (a *FederationInternalAPI) doRequestIfNotBackingOffOrBlacklisted(
s gomatrixserverlib.ServerName, request func() (interface{}, error),
) (interface{}, error) {
stats, err := a.isBlacklistedOrBackingOff(s)
@ -167,141 +167,15 @@ func (a *FederationInternalAPI) doRequest(
return res, nil
}
func (a *FederationInternalAPI) GetUserDevices(
ctx context.Context, s gomatrixserverlib.ServerName, userID string,
) (gomatrixserverlib.RespUserDevices, error) {
ctx, cancel := context.WithTimeout(ctx, time.Second*30)
defer cancel()
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.GetUserDevices(ctx, s, userID)
})
if err != nil {
return gomatrixserverlib.RespUserDevices{}, err
func (a *FederationInternalAPI) doRequestIfNotBlacklisted(
s gomatrixserverlib.ServerName, request func() (interface{}, error),
) (interface{}, error) {
stats := a.statistics.ForServer(s)
if _, blacklisted := stats.BackoffInfo(); blacklisted {
return stats, &api.FederationClientError{
Err: fmt.Sprintf("server %q is blacklisted", s),
Blacklisted: true,
}
}
return ires.(gomatrixserverlib.RespUserDevices), nil
}
func (a *FederationInternalAPI) ClaimKeys(
ctx context.Context, s gomatrixserverlib.ServerName, oneTimeKeys map[string]map[string]string,
) (gomatrixserverlib.RespClaimKeys, error) {
ctx, cancel := context.WithTimeout(ctx, time.Second*30)
defer cancel()
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.ClaimKeys(ctx, s, oneTimeKeys)
})
if err != nil {
return gomatrixserverlib.RespClaimKeys{}, err
}
return ires.(gomatrixserverlib.RespClaimKeys), nil
}
func (a *FederationInternalAPI) QueryKeys(
ctx context.Context, s gomatrixserverlib.ServerName, keys map[string][]string,
) (gomatrixserverlib.RespQueryKeys, error) {
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.QueryKeys(ctx, s, keys)
})
if err != nil {
return gomatrixserverlib.RespQueryKeys{}, err
}
return ires.(gomatrixserverlib.RespQueryKeys), nil
}
func (a *FederationInternalAPI) Backfill(
ctx context.Context, s gomatrixserverlib.ServerName, roomID string, limit int, eventIDs []string,
) (res gomatrixserverlib.Transaction, err error) {
ctx, cancel := context.WithTimeout(ctx, time.Second*30)
defer cancel()
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.Backfill(ctx, s, roomID, limit, eventIDs)
})
if err != nil {
return gomatrixserverlib.Transaction{}, err
}
return ires.(gomatrixserverlib.Transaction), nil
}
func (a *FederationInternalAPI) LookupState(
ctx context.Context, s gomatrixserverlib.ServerName, roomID, eventID string, roomVersion gomatrixserverlib.RoomVersion,
) (res gomatrixserverlib.RespState, err error) {
ctx, cancel := context.WithTimeout(ctx, time.Second*30)
defer cancel()
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.LookupState(ctx, s, roomID, eventID, roomVersion)
})
if err != nil {
return gomatrixserverlib.RespState{}, err
}
return ires.(gomatrixserverlib.RespState), nil
}
func (a *FederationInternalAPI) LookupStateIDs(
ctx context.Context, s gomatrixserverlib.ServerName, roomID, eventID string,
) (res gomatrixserverlib.RespStateIDs, err error) {
ctx, cancel := context.WithTimeout(ctx, time.Second*30)
defer cancel()
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.LookupStateIDs(ctx, s, roomID, eventID)
})
if err != nil {
return gomatrixserverlib.RespStateIDs{}, err
}
return ires.(gomatrixserverlib.RespStateIDs), nil
}
func (a *FederationInternalAPI) GetEvent(
ctx context.Context, s gomatrixserverlib.ServerName, eventID string,
) (res gomatrixserverlib.Transaction, err error) {
ctx, cancel := context.WithTimeout(ctx, time.Second*30)
defer cancel()
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.GetEvent(ctx, s, eventID)
})
if err != nil {
return gomatrixserverlib.Transaction{}, err
}
return ires.(gomatrixserverlib.Transaction), nil
}
func (a *FederationInternalAPI) LookupServerKeys(
ctx context.Context, s gomatrixserverlib.ServerName, keyRequests map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.Timestamp,
) ([]gomatrixserverlib.ServerKeys, error) {
ctx, cancel := context.WithTimeout(ctx, time.Minute)
defer cancel()
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.LookupServerKeys(ctx, s, keyRequests)
})
if err != nil {
return []gomatrixserverlib.ServerKeys{}, err
}
return ires.([]gomatrixserverlib.ServerKeys), nil
}
func (a *FederationInternalAPI) MSC2836EventRelationships(
ctx context.Context, s gomatrixserverlib.ServerName, r gomatrixserverlib.MSC2836EventRelationshipsRequest,
roomVersion gomatrixserverlib.RoomVersion,
) (res gomatrixserverlib.MSC2836EventRelationshipsResponse, err error) {
ctx, cancel := context.WithTimeout(ctx, time.Minute)
defer cancel()
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.MSC2836EventRelationships(ctx, s, r, roomVersion)
})
if err != nil {
return res, err
}
return ires.(gomatrixserverlib.MSC2836EventRelationshipsResponse), nil
}
func (a *FederationInternalAPI) MSC2946Spaces(
ctx context.Context, s gomatrixserverlib.ServerName, roomID string, r gomatrixserverlib.MSC2946SpacesRequest,
) (res gomatrixserverlib.MSC2946SpacesResponse, err error) {
ctx, cancel := context.WithTimeout(ctx, time.Minute)
defer cancel()
ires, err := a.doRequest(s, func() (interface{}, error) {
return a.federation.MSC2946Spaces(ctx, s, roomID, r)
})
if err != nil {
return res, err
}
return ires.(gomatrixserverlib.MSC2946SpacesResponse), nil
return request()
}