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Event relations (#2790)

Browse source 
This adds support for tracking `m.relates_to`, as well as adding support
for the various `/room/{roomID}/relations/...` endpoints to the CS API.
This commit is contained in:
Neil Alexander 2022-10-13 14:50:52 +01:00 committed by GitHub
parent 3c1474f68f
commit 23a3e04579
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
19 changed files with 943 additions and 51 deletions
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107
docs/caddy/polylith/Caddyfile
View file

@ -1,66 +1,85 @@
# Sample Caddyfile for using Caddy in front of Dendrite.
#
# Customize email address and domain names.
# Optional settings commented out.
#
# BE SURE YOUR DOMAINS ARE POINTED AT YOUR SERVER FIRST.
# Documentation: https://caddyserver.com/docs/
#
# Bonus tip: If your IP address changes, use Caddy's
# dynamic DNS plugin to update your DNS records to
# point to your new IP automatically:
# https://github.com/mholt/caddy-dynamicdns
# Sample Caddyfile for using Caddy in front of Dendrite
#
# Customize email address and domain names
# Optional settings commented out
#
# BE SURE YOUR DOMAINS ARE POINTED AT YOUR SERVER FIRST
# Documentation: <https://caddyserver.com/docs/>
#
# Bonus tip: If your IP address changes, use Caddy's
# dynamic DNS plugin to update your DNS records to
# point to your new IP automatically
# <https://github.com/mholt/caddy-dynamicdns>
#
# Global options block
{
# In case there is a problem with your certificates.
# email example@example.com
# In case there is a problem with your certificates.
# email example@example.com
# Turn off the admin endpoint if you don't need graceful config
# changes and/or are running untrusted code on your machine.
# admin off
# Turn off the admin endpoint if you don't need graceful config
# changes and/or are running untrusted code on your machine.
# admin off
# Enable this if your clients don't send ServerName in TLS handshakes.
# default_sni example.com
# Enable this if your clients don't send ServerName in TLS handshakes.
# default_sni example.com
# Enable debug mode for verbose logging.
# debug
# Enable debug mode for verbose logging.
# debug
# Use Let's Encrypt's staging endpoint for testing.
# acme_ca https://acme-staging-v02.api.letsencrypt.org/directory
# Use Let's Encrypt's staging endpoint for testing.
# acme_ca https://acme-staging-v02.api.letsencrypt.org/directory
# If you're port-forwarding HTTP/HTTPS ports from 80/443 to something
# else, enable these and put the alternate port numbers here.
# http_port 8080
# https_port 8443
# If you're port-forwarding HTTP/HTTPS ports from 80/443 to something
# else, enable these and put the alternate port numbers here.
# http_port 8080
# https_port 8443
}
# The server name of your matrix homeserver. This example shows
# "well-known delegation" from the registered domain to a subdomain,
# "well-known delegation" from the registered domain to a subdomain
# which is only needed if your server_name doesn't match your Matrix
# homeserver URL (i.e. you can show users a vanity domain that looks
# nice and is easy to remember but still have your Matrix server on
# its own subdomain or hosted service).
# its own subdomain or hosted service)
example.com {
header /.well-known/matrix/* Content-Type application/json
header /.well-known/matrix/* Access-Control-Allow-Origin *
respond /.well-known/matrix/server `{"m.server": "matrix.example.com:443"}`
respond /.well-known/matrix/client `{"m.homeserver": {"base_url": "https://matrix.example.com"}}`
header /.well-known/matrix/*Content-Type application/json
header /.well-known/matrix/* Access-Control-Allow-Origin *
respond /.well-known/matrix/server `{"m.server": "matrix.example.com:443"}`
respond /.well-known/matrix/client `{"m.homeserver": {"base_url": "https://matrix.example.com"}}`
}
# The actual domain name whereby your Matrix server is accessed.
# The actual domain name whereby your Matrix server is accessed
matrix.example.com {
# Change the end of each reverse_proxy line to the correct
# address for your various services.
@sync_api {
path_regexp /_matrix/client/.*?/(sync|user/.*?/filter/?.*|keys/changes|rooms/.*?/(messages|context/.*?|event/.*?))$
}
reverse_proxy @sync_api sync_api:8073
# Change the end of each reverse_proxy line to the correct
# address for your various services.
@sync_api {
path_regexp /_matrix/client/.*?/(sync|user/.*?/filter/?.*|keys/changes|rooms/.*?/(messages|context/.*?|relations/.*?|event/.*?))$
}
reverse_proxy @sync_api sync_api:8073
reverse_proxy /_matrix/client* client_api:8071
reverse_proxy /_matrix/federation* federation_api:8071
reverse_proxy /_matrix/key* federation_api:8071
reverse_proxy /_matrix/media* media_api:8071
reverse_proxy /_matrix/client* client_api:8071
reverse_proxy /_matrix/federation* federation_api:8071
reverse_proxy /_matrix/key* federation_api:8071
reverse_proxy /_matrix/media* media_api:8071
}

5
docs/hiawatha/polylith-sample.conf
View file

@ -20,8 +20,11 @@ VirtualHost {
# /_matrix/client/.*/rooms/{roomId}/messages
# /_matrix/client/.*/rooms/{roomId}/context/{eventID}
# /_matrix/client/.*/rooms/{roomId}/event/{eventID}
# /_matrix/client/.*/rooms/{roomId}/relations/{eventID}
# /_matrix/client/.*/rooms/{roomId}/relations/{eventID}/{relType}
# /_matrix/client/.*/rooms/{roomId}/relations/{eventID}/{relType}/{eventType}
# to sync_api
ReverseProxy = /_matrix/client/.*?/(sync|user/.*?/filter/?.*|keys/changes|rooms/.*?/(messages|context/.*?|event/.*?))$ http://localhost:8073 600
ReverseProxy = /_matrix/client/.*?/(sync|user/.*?/filter/?.*|keys/changes|rooms/.*?/(messages|context/.*?|relations/.*?|event/.*?))$ http://localhost:8073 600
ReverseProxy = /_matrix/client http://localhost:8071 600
ReverseProxy = /_matrix/federation http://localhost:8072 600
ReverseProxy = /_matrix/key http://localhost:8072 600

5
docs/nginx/polylith-sample.conf
View file

@ -30,8 +30,11 @@ server {
# /_matrix/client/.*/rooms/{roomId}/messages
# /_matrix/client/.*/rooms/{roomId}/context/{eventID}
# /_matrix/client/.*/rooms/{roomId}/event/{eventID}
# /_matrix/client/.*/rooms/{roomId}/relations/{eventID}
# /_matrix/client/.*/rooms/{roomId}/relations/{eventID}/{relType}
# /_matrix/client/.*/rooms/{roomId}/relations/{eventID}/{relType}/{eventType}
# to sync_api
location ~ /_matrix/client/.*?/(sync|user/.*?/filter/?.*|keys/changes|rooms/.*?/(messages|context/.*?|event/.*?))$ {
location ~ /_matrix/client/.*?/(sync|user/.*?/filter/?.*|keys/changes|rooms/.*?/(messages|context/.*?|relations/.*?|event/.*?))$ {
proxy_pass http://sync_api:8073;
}

2
go.mod
View file

@ -22,7 +22,7 @@ require (
github.com/matrix-org/dugong v0.0.0-20210921133753-66e6b1c67e2e
github.com/matrix-org/go-sqlite3-js v0.0.0-20220419092513-28aa791a1c91
github.com/matrix-org/gomatrix v0.0.0-20210324163249-be2af5ef2e16
github.com/matrix-org/gomatrixserverlib v0.0.0-20220929190355-91d455cd3621
github.com/matrix-org/gomatrixserverlib v0.0.0-20221011115330-49fa704b9a64
github.com/matrix-org/pinecone v0.0.0-20220929155234-2ce51dd4a42c
github.com/matrix-org/util v0.0.0-20200807132607-55161520e1d4
github.com/mattn/go-sqlite3 v1.14.15

4
go.sum
View file

@ -384,8 +384,8 @@ github.com/matrix-org/go-sqlite3-js v0.0.0-20220419092513-28aa791a1c91 h1:s7fexw
github.com/matrix-org/go-sqlite3-js v0.0.0-20220419092513-28aa791a1c91/go.mod h1:e+cg2q7C7yE5QnAXgzo512tgFh1RbQLC0+jozuegKgo=
github.com/matrix-org/gomatrix v0.0.0-20210324163249-be2af5ef2e16 h1:ZtO5uywdd5dLDCud4r0r55eP4j9FuUNpl60Gmntcop4=
github.com/matrix-org/gomatrix v0.0.0-20210324163249-be2af5ef2e16/go.mod h1:/gBX06Kw0exX1HrwmoBibFA98yBk/jxKpGVeyQbff+s=
github.com/matrix-org/gomatrixserverlib v0.0.0-20220929190355-91d455cd3621 h1:a8IaoSPDxevkgXnOUrtIW9AqVNvXBJAG0gtnX687S7g=
github.com/matrix-org/gomatrixserverlib v0.0.0-20220929190355-91d455cd3621/go.mod h1:Mtifyr8q8htcBeugvlDnkBcNUy5LO8OzUoplAf1+mb4=
github.com/matrix-org/gomatrixserverlib v0.0.0-20221011115330-49fa704b9a64 h1:QJmfAPC3P0ZHJzYD/QtbNc5EztKlK1ipRWP5SO/m4jw=
github.com/matrix-org/gomatrixserverlib v0.0.0-20221011115330-49fa704b9a64/go.mod h1:Mtifyr8q8htcBeugvlDnkBcNUy5LO8OzUoplAf1+mb4=
github.com/matrix-org/pinecone v0.0.0-20220929155234-2ce51dd4a42c h1:iCHLYwwlPsf4TYFrvhKdhQoAM2lXzcmDZYqwBNWcnVk=
github.com/matrix-org/pinecone v0.0.0-20220929155234-2ce51dd4a42c/go.mod h1:K0N1ixHQxXoCyqolDqVxPM3ArrDtcMs8yegOx2Lfv9k=
github.com/matrix-org/util v0.0.0-20200807132607-55161520e1d4 h1:eCEHXWDv9Rm335MSuB49mFUK44bwZPFSDde3ORE3syk=

27
syncapi/consumers/roomserver.go
View file

@ -148,6 +148,16 @@ func (s *OutputRoomEventConsumer) onRedactEvent(
log.WithError(err).Error("RedactEvent error'd")
return err
}
if err = s.db.RedactRelations(ctx, msg.RedactedBecause.RoomID(), msg.RedactedEventID); err != nil {
log.WithFields(log.Fields{
"room_id": msg.RedactedBecause.RoomID(),
"event_id": msg.RedactedBecause.EventID(),
"redacted_event_id": msg.RedactedEventID,
}).WithError(err).Warn("Failed to redact relations")
return err
}
// fake a room event so we notify clients about the redaction, as if it were
// a normal event.
return s.onNewRoomEvent(ctx, api.OutputNewRoomEvent{
@ -271,6 +281,14 @@ func (s *OutputRoomEventConsumer) onNewRoomEvent(
return err
}
if err = s.db.UpdateRelations(ctx, ev); err != nil {
log.WithFields(log.Fields{
"event_id": ev.EventID(),
"type": ev.Type(),
}).WithError(err).Warn("Failed to update relations")
return err
}
s.pduStream.Advance(pduPos)
s.notifier.OnNewEvent(ev, ev.RoomID(), nil, types.StreamingToken{PDUPosition: pduPos})
@ -315,6 +333,15 @@ func (s *OutputRoomEventConsumer) onOldRoomEvent(
}).WithError(err).Warn("failed to index fulltext element")
}
if err = s.db.UpdateRelations(ctx, ev); err != nil {
log.WithFields(log.Fields{
"room_id": ev.RoomID(),
"event_id": ev.EventID(),
"type": ev.Type(),
}).WithError(err).Warn("Failed to update relations")
return err
}
if pduPos, err = s.notifyJoinedPeeks(ctx, ev, pduPos); err != nil {
log.WithError(err).Errorf("Failed to notifyJoinedPeeks for PDU pos %d", pduPos)
return err

124
syncapi/routing/relations.go Normal file
View file

@ -0,0 +1,124 @@
// Copyright 2022 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package routing
import (
"net/http"
"strconv"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/util"
"github.com/sirupsen/logrus"
"github.com/matrix-org/dendrite/clientapi/jsonerror"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/syncapi/internal"
"github.com/matrix-org/dendrite/syncapi/storage"
"github.com/matrix-org/dendrite/syncapi/types"
userapi "github.com/matrix-org/dendrite/userapi/api"
)
type RelationsResponse struct {
Chunk []gomatrixserverlib.ClientEvent `json:"chunk"`
NextBatch string `json:"next_batch,omitempty"`
PrevBatch string `json:"prev_batch,omitempty"`
}
// nolint:gocyclo
func Relations(
req *http.Request, device *userapi.Device,
syncDB storage.Database,
rsAPI api.SyncRoomserverAPI,
roomID, eventID, relType, eventType string,
) util.JSONResponse {
var err error
var from, to types.StreamPosition
var limit int
dir := req.URL.Query().Get("dir")
if f := req.URL.Query().Get("from"); f != "" {
if from, err = types.NewStreamPositionFromString(f); err != nil {
return util.ErrorResponse(err)
}
}
if t := req.URL.Query().Get("to"); t != "" {
if to, err = types.NewStreamPositionFromString(t); err != nil {
return util.ErrorResponse(err)
}
}
if l := req.URL.Query().Get("limit"); l != "" {
if limit, err = strconv.Atoi(l); err != nil {
return util.ErrorResponse(err)
}
}
if limit == 0 || limit > 50 {
limit = 50
}
if dir == "" {
dir = "b"
}
if dir != "b" && dir != "f" {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.MissingArgument("Bad or missing dir query parameter (should be either 'b' or 'f')"),
}
}
snapshot, err := syncDB.NewDatabaseSnapshot(req.Context())
if err != nil {
logrus.WithError(err).Error("Failed to get snapshot for relations")
return jsonerror.InternalServerError()
}
var succeeded bool
defer sqlutil.EndTransactionWithCheck(snapshot, &succeeded, &err)
res := &RelationsResponse{
Chunk: []gomatrixserverlib.ClientEvent{},
}
var events []types.StreamEvent
events, res.PrevBatch, res.NextBatch, err = snapshot.RelationsFor(
req.Context(), roomID, eventID, relType, eventType, from, to, dir == "b", limit,
)
if err != nil {
return util.ErrorResponse(err)
}
headeredEvents := make([]*gomatrixserverlib.HeaderedEvent, 0, len(events))
for _, event := range events {
headeredEvents = append(headeredEvents, event.HeaderedEvent)
}
// Apply history visibility to the result events.
filteredEvents, err := internal.ApplyHistoryVisibilityFilter(req.Context(), snapshot, rsAPI, headeredEvents, nil, device.UserID, "relations")
if err != nil {
return util.ErrorResponse(err)
}
// Convert the events into client events, and optionally filter based on the event
// type if it was specified.
res.Chunk = make([]gomatrixserverlib.ClientEvent, 0, len(filteredEvents))
for _, event := range filteredEvents {
res.Chunk = append(
res.Chunk,
gomatrixserverlib.ToClientEvent(event.Event, gomatrixserverlib.FormatAll),
)
}
succeeded = true
return util.JSONResponse{
Code: http.StatusOK,
JSON: res,
}
}

43
syncapi/routing/routing.go
View file

@ -45,6 +45,7 @@ func Setup(
lazyLoadCache caching.LazyLoadCache,
fts *fulltext.Search,
) {
v1unstablemux := csMux.PathPrefix("/{apiversion:(?:v1|unstable)}/").Subrouter()
v3mux := csMux.PathPrefix("/{apiversion:(?:r0|v3)}/").Subrouter()
// TODO: Add AS support for all handlers below.
@ -110,6 +111,48 @@ func Setup(
}),
).Methods(http.MethodGet, http.MethodOptions)
v1unstablemux.Handle("/rooms/{roomId}/relations/{eventId}",
httputil.MakeAuthAPI(gomatrixserverlib.Join, userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
if err != nil {
return util.ErrorResponse(err)
}
return Relations(
req, device, syncDB, rsAPI,
vars["roomId"], vars["eventId"], "", "",
)
}),
).Methods(http.MethodGet, http.MethodOptions)
v1unstablemux.Handle("/rooms/{roomId}/relations/{eventId}/{relType}",
httputil.MakeAuthAPI(gomatrixserverlib.Join, userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
if err != nil {
return util.ErrorResponse(err)
}
return Relations(
req, device, syncDB, rsAPI,
vars["roomId"], vars["eventId"], vars["relType"], "",
)
}),
).Methods(http.MethodGet, http.MethodOptions)
v1unstablemux.Handle("/rooms/{roomId}/relations/{eventId}/{relType}/{eventType}",
httputil.MakeAuthAPI(gomatrixserverlib.Join, userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
if err != nil {
return util.ErrorResponse(err)
}
return Relations(
req, device, syncDB, rsAPI,
vars["roomId"], vars["eventId"], vars["relType"], vars["eventType"],
)
}),
).Methods(http.MethodGet, http.MethodOptions)
v3mux.Handle("/search",
httputil.MakeAuthAPI("search", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
if !cfg.Fulltext.Enabled {

4
syncapi/storage/interface.go
View file

@ -38,6 +38,7 @@ type DatabaseTransaction interface {
MaxStreamPositionForSendToDeviceMessages(ctx context.Context) (types.StreamPosition, error)
MaxStreamPositionForNotificationData(ctx context.Context) (types.StreamPosition, error)
MaxStreamPositionForPresence(ctx context.Context) (types.StreamPosition, error)
MaxStreamPositionForRelations(ctx context.Context) (types.StreamPosition, error)
CurrentState(ctx context.Context, roomID string, stateFilterPart *gomatrixserverlib.StateFilter, excludeEventIDs []string) ([]*gomatrixserverlib.HeaderedEvent, error)
GetStateDeltasForFullStateSync(ctx context.Context, device *userapi.Device, r types.Range, userID string, stateFilter *gomatrixserverlib.StateFilter) ([]types.StateDelta, []string, error)
@ -107,6 +108,7 @@ type DatabaseTransaction interface {
GetUserUnreadNotificationCountsForRooms(ctx context.Context, userID string, roomIDs map[string]string) (map[string]*eventutil.NotificationData, error)
GetPresence(ctx context.Context, userID string) (*types.PresenceInternal, error)
PresenceAfter(ctx context.Context, after types.StreamPosition, filter gomatrixserverlib.EventFilter) (map[string]*types.PresenceInternal, error)
RelationsFor(ctx context.Context, roomID, eventID, relType, eventType string, from, to types.StreamPosition, backwards bool, limit int) (events []types.StreamEvent, prevBatch, nextBatch string, err error)
}
type Database interface {
@ -174,6 +176,8 @@ type Database interface {
StoreReceipt(ctx context.Context, roomId, receiptType, userId, eventId string, timestamp gomatrixserverlib.Timestamp) (pos types.StreamPosition, err error)
UpdateIgnoresForUser(ctx context.Context, userID string, ignores *types.IgnoredUsers) error
ReIndex(ctx context.Context, limit, afterID int64) (map[int64]gomatrixserverlib.HeaderedEvent, error)
UpdateRelations(ctx context.Context, event *gomatrixserverlib.HeaderedEvent) error
RedactRelations(ctx context.Context, roomID, redactedEventID string) error
}
type Presence interface {

158
syncapi/storage/postgres/relations_table.go Normal file
View file

@ -0,0 +1,158 @@
// Copyright 2022 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package postgres
import (
"context"
"database/sql"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/syncapi/storage/tables"
"github.com/matrix-org/dendrite/syncapi/types"
)
const relationsSchema = `
CREATE SEQUENCE IF NOT EXISTS syncapi_relation_id;
CREATE TABLE IF NOT EXISTS syncapi_relations (
id BIGINT PRIMARY KEY DEFAULT nextval('syncapi_relation_id'),
room_id TEXT NOT NULL,
event_id TEXT NOT NULL,
child_event_id TEXT NOT NULL,
child_event_type TEXT NOT NULL,
rel_type TEXT NOT NULL,
CONSTRAINT syncapi_relations_unique UNIQUE (room_id, event_id, child_event_id, rel_type)
);
`
const insertRelationSQL = "" +
"INSERT INTO syncapi_relations (" +
" room_id, event_id, child_event_id, child_event_type, rel_type" +
") VALUES ($1, $2, $3, $4, $5) " +
" ON CONFLICT DO NOTHING"
const deleteRelationSQL = "" +
"DELETE FROM syncapi_relations WHERE room_id = $1 AND child_event_id = $2"
const selectRelationsInRangeAscSQL = "" +
"SELECT id, child_event_id, rel_type FROM syncapi_relations" +
" WHERE room_id = $1 AND event_id = $2" +
" AND ( $3 = '' OR rel_type = $3 )" +
" AND ( $4 = '' OR child_event_type = $4 )" +
" AND id > $5 AND id <= $6" +
" ORDER BY id ASC LIMIT $7"
const selectRelationsInRangeDescSQL = "" +
"SELECT id, child_event_id, rel_type FROM syncapi_relations" +
" WHERE room_id = $1 AND event_id = $2" +
" AND ( $3 = '' OR rel_type = $3 )" +
" AND ( $4 = '' OR child_event_type = $4 )" +
" AND id >= $5 AND id < $6" +
" ORDER BY id DESC LIMIT $7"
const selectMaxRelationIDSQL = "" +
"SELECT COALESCE(MAX(id), 0) FROM syncapi_relations"
type relationsStatements struct {
insertRelationStmt *sql.Stmt
selectRelationsInRangeAscStmt *sql.Stmt
selectRelationsInRangeDescStmt *sql.Stmt
deleteRelationStmt *sql.Stmt
selectMaxRelationIDStmt *sql.Stmt
}
func NewPostgresRelationsTable(db *sql.DB) (tables.Relations, error) {
s := &relationsStatements{}
_, err := db.Exec(relationsSchema)
if err != nil {
return nil, err
}
return s, sqlutil.StatementList{
{&s.insertRelationStmt, insertRelationSQL},
{&s.selectRelationsInRangeAscStmt, selectRelationsInRangeAscSQL},
{&s.selectRelationsInRangeDescStmt, selectRelationsInRangeDescSQL},
{&s.deleteRelationStmt, deleteRelationSQL},
{&s.selectMaxRelationIDStmt, selectMaxRelationIDSQL},
}.Prepare(db)
}
func (s *relationsStatements) InsertRelation(
ctx context.Context, txn *sql.Tx, roomID, eventID, childEventID, childEventType, relType string,
) (err error) {
_, err = sqlutil.TxStmt(txn, s.insertRelationStmt).ExecContext(
ctx, roomID, eventID, childEventID, childEventType, relType,
)
return
}
func (s *relationsStatements) DeleteRelation(
ctx context.Context, txn *sql.Tx, roomID, childEventID string,
) error {
stmt := sqlutil.TxStmt(txn, s.deleteRelationStmt)
_, err := stmt.ExecContext(
ctx, roomID, childEventID,
)
return err
}
// SelectRelationsInRange returns a map rel_type -> []child_event_id
func (s *relationsStatements) SelectRelationsInRange(
ctx context.Context, txn *sql.Tx, roomID, eventID, relType, eventType string,
r types.Range, limit int,
) (map[string][]types.RelationEntry, types.StreamPosition, error) {
var lastPos types.StreamPosition
var stmt *sql.Stmt
if r.Backwards {
stmt = sqlutil.TxStmt(txn, s.selectRelationsInRangeDescStmt)
} else {
stmt = sqlutil.TxStmt(txn, s.selectRelationsInRangeAscStmt)
}
rows, err := stmt.QueryContext(ctx, roomID, eventID, relType, eventType, r.Low(), r.High(), limit)
if err != nil {
return nil, lastPos, err
}
defer internal.CloseAndLogIfError(ctx, rows, "selectRelationsInRange: rows.close() failed")
result := map[string][]types.RelationEntry{}
var (
id types.StreamPosition
childEventID string
relationType string
)
for rows.Next() {
if err = rows.Scan(&id, &childEventID, &relationType); err != nil {
return nil, lastPos, err
}
if id > lastPos {
lastPos = id
}
result[relationType] = append(result[relationType], types.RelationEntry{
Position: id,
EventID: childEventID,
})
}
if lastPos == 0 {
lastPos = r.To
}
return result, lastPos, rows.Err()
}
func (s *relationsStatements) SelectMaxRelationID(
ctx context.Context, txn *sql.Tx,
) (id int64, err error) {
stmt := sqlutil.TxStmt(txn, s.selectMaxRelationIDStmt)
err = stmt.QueryRowContext(ctx).Scan(&id)
return
}

5
syncapi/storage/postgres/syncserver.go
View file

@ -98,6 +98,10 @@ func NewDatabase(base *base.BaseDendrite, dbProperties *config.DatabaseOptions)
if err != nil {
return nil, err
}
relations, err := NewPostgresRelationsTable(d.db)
if err != nil {
return nil, err
}
// apply migrations which need multiple tables
m := sqlutil.NewMigrator(d.db)
@ -129,6 +133,7 @@ func NewDatabase(base *base.BaseDendrite, dbProperties *config.DatabaseOptions)
NotificationData: notificationData,
Ignores: ignores,
Presence: presence,
Relations: relations,
}
return &d, nil
}

35
syncapi/storage/shared/storage_consumer.go
View file

@ -53,6 +53,7 @@ type Database struct {
NotificationData tables.NotificationData
Ignores tables.Ignores
Presence tables.Presence
Relations tables.Relations
}
func (d *Database) NewDatabaseSnapshot(ctx context.Context) (*DatabaseTransaction, error) {
@ -579,10 +580,40 @@ func (d *Database) SelectMembershipForUser(ctx context.Context, roomID, userID s
return d.Memberships.SelectMembershipForUser(ctx, nil, roomID, userID, pos)
}
func (s *Database) ReIndex(ctx context.Context, limit, afterID int64) (map[int64]gomatrixserverlib.HeaderedEvent, error) {
return s.OutputEvents.ReIndex(ctx, nil, limit, afterID, []string{
func (d *Database) ReIndex(ctx context.Context, limit, afterID int64) (map[int64]gomatrixserverlib.HeaderedEvent, error) {
return d.OutputEvents.ReIndex(ctx, nil, limit, afterID, []string{
gomatrixserverlib.MRoomName,
gomatrixserverlib.MRoomTopic,
"m.room.message",
})
}
func (d *Database) UpdateRelations(ctx context.Context, event *gomatrixserverlib.HeaderedEvent) error {
var content gomatrixserverlib.RelationContent
if err := json.Unmarshal(event.Content(), &content); err != nil {
return fmt.Errorf("json.Unmarshal: %w", err)
}
switch {
case content.Relations == nil:
return nil
case content.Relations.EventID == "":
return nil
case content.Relations.RelationType == "":
return nil
case event.Type() == gomatrixserverlib.MRoomRedaction:
return nil
default:
return d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
return d.Relations.InsertRelation(
ctx, txn, event.RoomID(), content.Relations.EventID,
event.EventID(), event.Type(), content.Relations.RelationType,
)
})
}
}
func (d *Database) RedactRelations(ctx context.Context, roomID, redactedEventID string) error {
return d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
return d.Relations.DeleteRelation(ctx, txn, roomID, redactedEventID)
})
}

81
syncapi/storage/shared/storage_sync.go
View file

@ -589,3 +589,84 @@ func (d *DatabaseTransaction) PresenceAfter(ctx context.Context, after types.Str
func (d *DatabaseTransaction) MaxStreamPositionForPresence(ctx context.Context) (types.StreamPosition, error) {
return d.Presence.GetMaxPresenceID(ctx, d.txn)
}
func (d *DatabaseTransaction) MaxStreamPositionForRelations(ctx context.Context) (types.StreamPosition, error) {
id, err := d.Relations.SelectMaxRelationID(ctx, d.txn)
return types.StreamPosition(id), err
}
func (d *DatabaseTransaction) RelationsFor(ctx context.Context, roomID, eventID, relType, eventType string, from, to types.StreamPosition, backwards bool, limit int) (
events []types.StreamEvent, prevBatch, nextBatch string, err error,
) {
r := types.Range{
From: from,
To: to,
Backwards: backwards,
}
if r.Backwards && r.From == 0 {
// If we're working backwards (dir=b) and there's no ?from= specified then
// we will automatically want to work backwards from the current position,
// so find out what that is.
if r.From, err = d.MaxStreamPositionForRelations(ctx); err != nil {
return nil, "", "", fmt.Errorf("d.MaxStreamPositionForRelations: %w", err)
}
// The result normally isn't inclusive of the event *at* the ?from=
// position, so add 1 here so that we include the most recent relation.
r.From++
} else if !r.Backwards && r.To == 0 {
// If we're working forwards (dir=f) and there's no ?to= specified then
// we will automatically want to work forwards towards the current position,
// so find out what that is.
if r.To, err = d.MaxStreamPositionForRelations(ctx); err != nil {
return nil, "", "", fmt.Errorf("d.MaxStreamPositionForRelations: %w", err)
}
}
// First look up any relations from the database. We add one to the limit here
// so that we can tell if we're overflowing, as we will only set the "next_batch"
// in the response if we are.
relations, _, err := d.Relations.SelectRelationsInRange(ctx, d.txn, roomID, eventID, relType, eventType, r, limit+1)
if err != nil {
return nil, "", "", fmt.Errorf("d.Relations.SelectRelationsInRange: %w", err)
}
// If we specified a relation type then just get those results, otherwise collate
// them from all of the returned relation types.
entries := []types.RelationEntry{}
if relType != "" {
entries = relations[relType]
} else {
for _, e := range relations {
entries = append(entries, e...)
}
}
// If there were no entries returned, there were no relations, so stop at this point.
if len(entries) == 0 {
return nil, "", "", nil
}
// Otherwise, let's try and work out what sensible prev_batch and next_batch values
// could be. We've requested an extra event by adding one to the limit already so
// that we can determine whether or not to provide a "next_batch", so trim off that
// event off the end if needs be.
if len(entries) > limit {
entries = entries[:len(entries)-1]
nextBatch = fmt.Sprintf("%d", entries[len(entries)-1].Position)
}
// TODO: set prevBatch? doesn't seem to affect the tests...
// Extract all of the event IDs from the relation entries so that we can pull the
// events out of the database. Then go and fetch the events.
eventIDs := make([]string, 0, len(entries))
for _, entry := range entries {
eventIDs = append(eventIDs, entry.EventID)
}
events, err = d.OutputEvents.SelectEvents(ctx, d.txn, eventIDs, nil, true)
if err != nil {
return nil, "", "", fmt.Errorf("d.OutputEvents.SelectEvents: %w", err)
}
return events, prevBatch, nextBatch, nil
}

163
syncapi/storage/sqlite3/relations_table.go Normal file
View file

@ -0,0 +1,163 @@
// Copyright 2022 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package sqlite3
import (
"context"
"database/sql"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/syncapi/storage/tables"
"github.com/matrix-org/dendrite/syncapi/types"
)
const relationsSchema = `
CREATE TABLE IF NOT EXISTS syncapi_relations (
id BIGINT PRIMARY KEY,
room_id TEXT NOT NULL,
event_id TEXT NOT NULL,
child_event_id TEXT NOT NULL,
child_event_type TEXT NOT NULL,
rel_type TEXT NOT NULL,
UNIQUE (room_id, event_id, child_event_id, rel_type)
);
`
const insertRelationSQL = "" +
"INSERT INTO syncapi_relations (" +
" id, room_id, event_id, child_event_id, child_event_type, rel_type" +
") VALUES ($1, $2, $3, $4, $5, $6) " +
" ON CONFLICT DO NOTHING"
const deleteRelationSQL = "" +
"DELETE FROM syncapi_relations WHERE room_id = $1 AND child_event_id = $2"
const selectRelationsInRangeAscSQL = "" +
"SELECT id, child_event_id, rel_type FROM syncapi_relations" +
" WHERE room_id = $1 AND event_id = $2" +
" AND ( $3 = '' OR rel_type = $3 )" +
" AND ( $4 = '' OR child_event_type = $4 )" +
" AND id > $5 AND id <= $6" +
" ORDER BY id ASC LIMIT $7"
const selectRelationsInRangeDescSQL = "" +
"SELECT id, child_event_id, rel_type FROM syncapi_relations" +
" WHERE room_id = $1 AND event_id = $2" +
" AND ( $3 = '' OR rel_type = $3 )" +
" AND ( $4 = '' OR child_event_type = $4 )" +
" AND id >= $5 AND id < $6" +
" ORDER BY id DESC LIMIT $7"
const selectMaxRelationIDSQL = "" +
"SELECT COALESCE(MAX(id), 0) FROM syncapi_relations"
type relationsStatements struct {
streamIDStatements *StreamIDStatements
insertRelationStmt *sql.Stmt
selectRelationsInRangeAscStmt *sql.Stmt
selectRelationsInRangeDescStmt *sql.Stmt
deleteRelationStmt *sql.Stmt
selectMaxRelationIDStmt *sql.Stmt
}
func NewSqliteRelationsTable(db *sql.DB, streamID *StreamIDStatements) (tables.Relations, error) {
s := &relationsStatements{
streamIDStatements: streamID,
}
_, err := db.Exec(relationsSchema)
if err != nil {
return nil, err
}
return s, sqlutil.StatementList{
{&s.insertRelationStmt, insertRelationSQL},
{&s.selectRelationsInRangeAscStmt, selectRelationsInRangeAscSQL},
{&s.selectRelationsInRangeDescStmt, selectRelationsInRangeDescSQL},
{&s.deleteRelationStmt, deleteRelationSQL},
{&s.selectMaxRelationIDStmt, selectMaxRelationIDSQL},
}.Prepare(db)
}
func (s *relationsStatements) InsertRelation(
ctx context.Context, txn *sql.Tx, roomID, eventID, childEventID, childEventType, relType string,
) (err error) {
var streamPos types.StreamPosition
if streamPos, err = s.streamIDStatements.nextRelationID(ctx, txn); err != nil {
return
}
_, err = sqlutil.TxStmt(txn, s.insertRelationStmt).ExecContext(
ctx, streamPos, roomID, eventID, childEventID, childEventType, relType,
)
return
}
func (s *relationsStatements) DeleteRelation(
ctx context.Context, txn *sql.Tx, roomID, childEventID string,
) error {
stmt := sqlutil.TxStmt(txn, s.deleteRelationStmt)
_, err := stmt.ExecContext(
ctx, roomID, childEventID,
)
return err
}
// SelectRelationsInRange returns a map rel_type -> []child_event_id
func (s *relationsStatements) SelectRelationsInRange(
ctx context.Context, txn *sql.Tx, roomID, eventID, relType, eventType string,
r types.Range, limit int,
) (map[string][]types.RelationEntry, types.StreamPosition, error) {
var lastPos types.StreamPosition
var stmt *sql.Stmt
if r.Backwards {
stmt = sqlutil.TxStmt(txn, s.selectRelationsInRangeDescStmt)
} else {
stmt = sqlutil.TxStmt(txn, s.selectRelationsInRangeAscStmt)
}
rows, err := stmt.QueryContext(ctx, roomID, eventID, relType, eventType, r.Low(), r.High(), limit)
if err != nil {
return nil, lastPos, err
}
defer internal.CloseAndLogIfError(ctx, rows, "selectRelationsInRange: rows.close() failed")
result := map[string][]types.RelationEntry{}
var (
id types.StreamPosition
childEventID string
relationType string
)
for rows.Next() {
if err = rows.Scan(&id, &childEventID, &relationType); err != nil {
return nil, lastPos, err
}
if id > lastPos {
lastPos = id
}
result[relationType] = append(result[relationType], types.RelationEntry{
Position: id,
EventID: childEventID,
})
}
if lastPos == 0 {
lastPos = r.To
}
return result, lastPos, rows.Err()
}
func (s *relationsStatements) SelectMaxRelationID(
ctx context.Context, txn *sql.Tx,
) (id int64, err error) {
stmt := sqlutil.TxStmt(txn, s.selectMaxRelationIDStmt)
err = stmt.QueryRowContext(ctx).Scan(&id)
return
}

8
syncapi/storage/sqlite3/stream_id_table.go
View file

@ -28,6 +28,8 @@ INSERT INTO syncapi_stream_id (stream_name, stream_id) VALUES ("presence", 0)
ON CONFLICT DO NOTHING;
INSERT INTO syncapi_stream_id (stream_name, stream_id) VALUES ("notification", 0)
ON CONFLICT DO NOTHING;
INSERT INTO syncapi_stream_id (stream_name, stream_id) VALUES ("relation", 0)
ON CONFLICT DO NOTHING;
`
const increaseStreamIDStmt = "" +
@ -86,3 +88,9 @@ func (s *StreamIDStatements) nextNotificationID(ctx context.Context, txn *sql.Tx
err = increaseStmt.QueryRowContext(ctx, "notification").Scan(&pos)
return
}
func (s *StreamIDStatements) nextRelationID(ctx context.Context, txn *sql.Tx) (pos types.StreamPosition, err error) {
increaseStmt := sqlutil.TxStmt(txn, s.increaseStreamIDStmt)
err = increaseStmt.QueryRowContext(ctx, "relation").Scan(&pos)
return
}

5
syncapi/storage/sqlite3/syncserver.go
View file

@ -123,6 +123,10 @@ func (d *SyncServerDatasource) prepare(ctx context.Context) (err error) {
if err != nil {
return err
}
relations, err := NewSqliteRelationsTable(d.db, &d.streamID)
if err != nil {
return err
}
// apply migrations which need multiple tables
m := sqlutil.NewMigrator(d.db)
@ -153,6 +157,7 @@ func (d *SyncServerDatasource) prepare(ctx context.Context) (err error) {
NotificationData: notificationData,
Ignores: ignores,
Presence: presence,
Relations: relations,
}
return nil
}

19
syncapi/storage/tables/interface.go
View file

@ -206,3 +206,22 @@ type Presence interface {
GetMaxPresenceID(ctx context.Context, txn *sql.Tx) (pos types.StreamPosition, err error)
GetPresenceAfter(ctx context.Context, txn *sql.Tx, after types.StreamPosition, filter gomatrixserverlib.EventFilter) (presences map[string]*types.PresenceInternal, err error)
}
type Relations interface {
// Inserts a relation which refers from the child event ID to the event ID in the given room.
// If the relation already exists then this function will do nothing and return no error.
InsertRelation(ctx context.Context, txn *sql.Tx, roomID, eventID, childEventID, childEventType, relType string) (err error)
// Deletes a relation which already exists as the result of an event redaction. If the relation
// does not exist then this function will do nothing and return no error.
DeleteRelation(ctx context.Context, txn *sql.Tx, roomID, childEventID string) error
// SelectRelationsInRange will return relations grouped by relation type within the given range.
// The map is relType -> []entry. If a relType parameter is specified then the results will only
// contain relations of that type, otherwise if "" is specified then all relations in the range
// will be returned, inclusive of the "to" position but excluding the "from" position. The stream
// position returned is the maximum position of the returned results.
SelectRelationsInRange(ctx context.Context, txn *sql.Tx, roomID, eventID, relType, eventType string, r types.Range, limit int) (map[string][]types.RelationEntry, types.StreamPosition, error)
// SelectMaxRelationID returns the maximum ID of all relations, used to determine what the boundaries
// should be if there are no boundaries supplied (i.e. we want to work backwards but don't have a
// "from" or want to work forwards and don't have a "to").
SelectMaxRelationID(ctx context.Context, txn *sql.Tx) (id int64, err error)
}

186
syncapi/storage/tables/relations_test.go Normal file
View file

@ -0,0 +1,186 @@
package tables_test
import (
"context"
"database/sql"
"testing"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/syncapi/storage/postgres"
"github.com/matrix-org/dendrite/syncapi/storage/sqlite3"
"github.com/matrix-org/dendrite/syncapi/storage/tables"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/dendrite/test"
)
func newRelationsTable(t *testing.T, dbType test.DBType) (tables.Relations, *sql.DB, func()) {
t.Helper()
connStr, close := test.PrepareDBConnectionString(t, dbType)
db, err := sqlutil.Open(&config.DatabaseOptions{
ConnectionString: config.DataSource(connStr),
}, sqlutil.NewExclusiveWriter())
if err != nil {
t.Fatalf("failed to open db: %s", err)
}
var tab tables.Relations
switch dbType {
case test.DBTypePostgres:
tab, err = postgres.NewPostgresRelationsTable(db)
case test.DBTypeSQLite:
var stream sqlite3.StreamIDStatements
if err = stream.Prepare(db); err != nil {
t.Fatalf("failed to prepare stream stmts: %s", err)
}
tab, err = sqlite3.NewSqliteRelationsTable(db, &stream)
}
if err != nil {
t.Fatalf("failed to make new table: %s", err)
}
return tab, db, close
}
func compareRelationsToExpected(t *testing.T, tab tables.Relations, r types.Range, expected []types.RelationEntry) {
ctx := context.Background()
relations, _, err := tab.SelectRelationsInRange(ctx, nil, roomID, "a", "", "", r, 50)
if err != nil {
t.Fatal(err)
}
if len(relations[relType]) != len(expected) {
t.Fatalf("incorrect number of values returned for range %v (got %d, want %d)", r, len(relations[relType]), len(expected))
}
for i := 0; i < len(relations[relType]); i++ {
got := relations[relType][i]
want := expected[i]
if got != want {
t.Fatalf("range %v position %d should have been %q but got %q", r, i, got, want)
}
}
}
const roomID = "!roomid:server"
const childType = "m.room.something"
const relType = "m.reaction"
func TestRelationsTable(t *testing.T) {
ctx := context.Background()
test.WithAllDatabases(t, func(t *testing.T, dbType test.DBType) {
tab, _, close := newRelationsTable(t, dbType)
defer close()
// Insert some relations
for _, child := range []string{"b", "c", "d"} {
if err := tab.InsertRelation(ctx, nil, roomID, "a", child, childType, relType); err != nil {
t.Fatal(err)
}
}
// Check the max position, we've inserted three things so it
// should be 3
if max, err := tab.SelectMaxRelationID(ctx, nil); err != nil {
t.Fatal(err)
} else if max != 3 {
t.Fatalf("max position should have been 3 but got %d", max)
}
// Query some ranges for "a"
for r, expected := range map[types.Range][]types.RelationEntry{
{From: 0, To: 10, Backwards: false}: {
{Position: 1, EventID: "b"},
{Position: 2, EventID: "c"},
{Position: 3, EventID: "d"},
},
{From: 1, To: 2, Backwards: false}: {
{Position: 2, EventID: "c"},
},
{From: 1, To: 3, Backwards: false}: {
{Position: 2, EventID: "c"},
{Position: 3, EventID: "d"},
},
{From: 10, To: 0, Backwards: true}: {
{Position: 3, EventID: "d"},
{Position: 2, EventID: "c"},
{Position: 1, EventID: "b"},
},
{From: 3, To: 1, Backwards: true}: {
{Position: 2, EventID: "c"},
{Position: 1, EventID: "b"},
},
} {
compareRelationsToExpected(t, tab, r, expected)
}
// Now delete one of the relations
if err := tab.DeleteRelation(ctx, nil, roomID, "c"); err != nil {
t.Fatal(err)
}
// Query some more ranges for "a"
for r, expected := range map[types.Range][]types.RelationEntry{
{From: 0, To: 10, Backwards: false}: {
{Position: 1, EventID: "b"},
{Position: 3, EventID: "d"},
},
{From: 1, To: 2, Backwards: false}: {},
{From: 1, To: 3, Backwards: false}: {
{Position: 3, EventID: "d"},
},
{From: 10, To: 0, Backwards: true}: {
{Position: 3, EventID: "d"},
{Position: 1, EventID: "b"},
},
{From: 3, To: 1, Backwards: true}: {
{Position: 1, EventID: "b"},
},
} {
compareRelationsToExpected(t, tab, r, expected)
}
// Insert some new relations
for _, child := range []string{"e", "f", "g", "h"} {
if err := tab.InsertRelation(ctx, nil, roomID, "a", child, childType, relType); err != nil {
t.Fatal(err)
}
}
// Check the max position, we've inserted four things so it
// should now be 7
if max, err := tab.SelectMaxRelationID(ctx, nil); err != nil {
t.Fatal(err)
} else if max != 7 {
t.Fatalf("max position should have been 3 but got %d", max)
}
// Query last set of ranges for "a"
for r, expected := range map[types.Range][]types.RelationEntry{
{From: 0, To: 10, Backwards: false}: {
{Position: 1, EventID: "b"},
{Position: 3, EventID: "d"},
{Position: 4, EventID: "e"},
{Position: 5, EventID: "f"},
{Position: 6, EventID: "g"},
{Position: 7, EventID: "h"},
},
{From: 1, To: 2, Backwards: false}: {},
{From: 1, To: 3, Backwards: false}: {
{Position: 3, EventID: "d"},
},
{From: 10, To: 0, Backwards: true}: {
{Position: 7, EventID: "h"},
{Position: 6, EventID: "g"},
{Position: 5, EventID: "f"},
{Position: 4, EventID: "e"},
{Position: 3, EventID: "d"},
{Position: 1, EventID: "b"},
},
{From: 6, To: 3, Backwards: true}: {
{Position: 5, EventID: "f"},
{Position: 4, EventID: "e"},
{Position: 3, EventID: "d"},
},
} {
compareRelationsToExpected(t, tab, r, expected)
}
})
}

13
syncapi/types/types.go
View file

@ -47,6 +47,14 @@ type StateDelta struct {
// StreamPosition represents the offset in the sync stream a client is at.
type StreamPosition int64
func NewStreamPositionFromString(s string) (StreamPosition, error) {
n, err := strconv.Atoi(s)
if err != nil {
return 0, err
}
return StreamPosition(n), nil
}
// StreamEvent is the same as gomatrixserverlib.Event but also has the PDU stream position for this event.
type StreamEvent struct {
*gomatrixserverlib.HeaderedEvent
@ -599,3 +607,8 @@ type OutputSendToDeviceEvent struct {
type IgnoredUsers struct {
List map[string]interface{} `json:"ignored_users"`
}
type RelationEntry struct {
Position StreamPosition
EventID string
}