494 lines
17 KiB
Go
494 lines
17 KiB
Go
// Copyright 2017-2018 New Vector Ltd
|
|
// Copyright 2019-2020 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"
|
|
"encoding/json"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/matrix-org/dendrite/internal"
|
|
"github.com/matrix-org/dendrite/internal/sqlutil"
|
|
"github.com/matrix-org/dendrite/roomserver/storage/shared"
|
|
"github.com/matrix-org/dendrite/roomserver/storage/tables"
|
|
"github.com/matrix-org/dendrite/roomserver/types"
|
|
"github.com/matrix-org/gomatrixserverlib"
|
|
)
|
|
|
|
const eventsSchema = `
|
|
CREATE TABLE IF NOT EXISTS roomserver_events (
|
|
event_nid INTEGER PRIMARY KEY AUTOINCREMENT,
|
|
room_nid INTEGER NOT NULL,
|
|
event_type_nid INTEGER NOT NULL,
|
|
event_state_key_nid INTEGER NOT NULL,
|
|
sent_to_output BOOLEAN NOT NULL DEFAULT FALSE,
|
|
state_snapshot_nid INTEGER NOT NULL DEFAULT 0,
|
|
depth INTEGER NOT NULL,
|
|
event_id TEXT NOT NULL UNIQUE,
|
|
reference_sha256 BLOB NOT NULL,
|
|
auth_event_nids TEXT NOT NULL DEFAULT '[]',
|
|
is_rejected BOOLEAN NOT NULL DEFAULT FALSE
|
|
);
|
|
`
|
|
|
|
const insertEventSQL = `
|
|
INSERT INTO roomserver_events (room_nid, event_type_nid, event_state_key_nid, event_id, reference_sha256, auth_event_nids, depth, is_rejected)
|
|
VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
|
|
ON CONFLICT DO NOTHING;
|
|
`
|
|
|
|
const selectEventSQL = "" +
|
|
"SELECT event_nid, state_snapshot_nid FROM roomserver_events WHERE event_id = $1"
|
|
|
|
// Bulk lookup of events by string ID.
|
|
// Sort by the numeric IDs for event type and state key.
|
|
// This means we can use binary search to lookup entries by type and state key.
|
|
const bulkSelectStateEventByIDSQL = "" +
|
|
"SELECT event_type_nid, event_state_key_nid, event_nid FROM roomserver_events" +
|
|
" WHERE event_id IN ($1)" +
|
|
" ORDER BY event_type_nid, event_state_key_nid ASC"
|
|
|
|
const bulkSelectStateAtEventByIDSQL = "" +
|
|
"SELECT event_type_nid, event_state_key_nid, event_nid, state_snapshot_nid, is_rejected FROM roomserver_events" +
|
|
" WHERE event_id IN ($1)"
|
|
|
|
const updateEventStateSQL = "" +
|
|
"UPDATE roomserver_events SET state_snapshot_nid = $1 WHERE event_nid = $2"
|
|
|
|
const selectEventSentToOutputSQL = "" +
|
|
"SELECT sent_to_output FROM roomserver_events WHERE event_nid = $1"
|
|
|
|
const updateEventSentToOutputSQL = "" +
|
|
"UPDATE roomserver_events SET sent_to_output = TRUE WHERE event_nid = $1"
|
|
|
|
const selectEventIDSQL = "" +
|
|
"SELECT event_id FROM roomserver_events WHERE event_nid = $1"
|
|
|
|
const bulkSelectStateAtEventAndReferenceSQL = "" +
|
|
"SELECT event_type_nid, event_state_key_nid, event_nid, state_snapshot_nid, event_id, reference_sha256" +
|
|
" FROM roomserver_events WHERE event_nid IN ($1)"
|
|
|
|
const bulkSelectEventReferenceSQL = "" +
|
|
"SELECT event_id, reference_sha256 FROM roomserver_events WHERE event_nid IN ($1)"
|
|
|
|
const bulkSelectEventIDSQL = "" +
|
|
"SELECT event_nid, event_id FROM roomserver_events WHERE event_nid IN ($1)"
|
|
|
|
const bulkSelectEventNIDSQL = "" +
|
|
"SELECT event_id, event_nid FROM roomserver_events WHERE event_id IN ($1)"
|
|
|
|
const selectMaxEventDepthSQL = "" +
|
|
"SELECT COALESCE(MAX(depth) + 1, 0) FROM roomserver_events WHERE event_nid IN ($1)"
|
|
|
|
const selectRoomNIDForEventNIDSQL = "" +
|
|
"SELECT room_nid FROM roomserver_events WHERE event_nid = $1"
|
|
|
|
type eventStatements struct {
|
|
db *sql.DB
|
|
insertEventStmt *sql.Stmt
|
|
selectEventStmt *sql.Stmt
|
|
bulkSelectStateEventByIDStmt *sql.Stmt
|
|
bulkSelectStateAtEventByIDStmt *sql.Stmt
|
|
updateEventStateStmt *sql.Stmt
|
|
selectEventSentToOutputStmt *sql.Stmt
|
|
updateEventSentToOutputStmt *sql.Stmt
|
|
selectEventIDStmt *sql.Stmt
|
|
bulkSelectStateAtEventAndReferenceStmt *sql.Stmt
|
|
bulkSelectEventReferenceStmt *sql.Stmt
|
|
bulkSelectEventIDStmt *sql.Stmt
|
|
bulkSelectEventNIDStmt *sql.Stmt
|
|
selectRoomNIDForEventNIDStmt *sql.Stmt
|
|
}
|
|
|
|
func NewSqliteEventsTable(db *sql.DB) (tables.Events, error) {
|
|
s := &eventStatements{
|
|
db: db,
|
|
}
|
|
_, err := db.Exec(eventsSchema)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return s, shared.StatementList{
|
|
{&s.insertEventStmt, insertEventSQL},
|
|
{&s.selectEventStmt, selectEventSQL},
|
|
{&s.bulkSelectStateEventByIDStmt, bulkSelectStateEventByIDSQL},
|
|
{&s.bulkSelectStateAtEventByIDStmt, bulkSelectStateAtEventByIDSQL},
|
|
{&s.updateEventStateStmt, updateEventStateSQL},
|
|
{&s.updateEventSentToOutputStmt, updateEventSentToOutputSQL},
|
|
{&s.selectEventSentToOutputStmt, selectEventSentToOutputSQL},
|
|
{&s.selectEventIDStmt, selectEventIDSQL},
|
|
{&s.bulkSelectStateAtEventAndReferenceStmt, bulkSelectStateAtEventAndReferenceSQL},
|
|
{&s.bulkSelectEventReferenceStmt, bulkSelectEventReferenceSQL},
|
|
{&s.bulkSelectEventIDStmt, bulkSelectEventIDSQL},
|
|
{&s.bulkSelectEventNIDStmt, bulkSelectEventNIDSQL},
|
|
{&s.selectRoomNIDForEventNIDStmt, selectRoomNIDForEventNIDSQL},
|
|
}.Prepare(db)
|
|
}
|
|
|
|
func (s *eventStatements) InsertEvent(
|
|
ctx context.Context,
|
|
txn *sql.Tx,
|
|
roomNID types.RoomNID,
|
|
eventTypeNID types.EventTypeNID,
|
|
eventStateKeyNID types.EventStateKeyNID,
|
|
eventID string,
|
|
referenceSHA256 []byte,
|
|
authEventNIDs []types.EventNID,
|
|
depth int64,
|
|
isRejected bool,
|
|
) (types.EventNID, types.StateSnapshotNID, error) {
|
|
// attempt to insert: the last_row_id is the event NID
|
|
var eventNID int64
|
|
insertStmt := sqlutil.TxStmt(txn, s.insertEventStmt)
|
|
result, err := insertStmt.ExecContext(
|
|
ctx, int64(roomNID), int64(eventTypeNID), int64(eventStateKeyNID),
|
|
eventID, referenceSHA256, eventNIDsAsArray(authEventNIDs), depth, isRejected,
|
|
)
|
|
if err != nil {
|
|
return 0, 0, err
|
|
}
|
|
modified, err := result.RowsAffected()
|
|
if modified == 0 && err == nil {
|
|
return 0, 0, sql.ErrNoRows
|
|
}
|
|
eventNID, err = result.LastInsertId()
|
|
return types.EventNID(eventNID), 0, err
|
|
}
|
|
|
|
func (s *eventStatements) SelectEvent(
|
|
ctx context.Context, txn *sql.Tx, eventID string,
|
|
) (types.EventNID, types.StateSnapshotNID, error) {
|
|
var eventNID int64
|
|
var stateNID int64
|
|
selectStmt := sqlutil.TxStmt(txn, s.selectEventStmt)
|
|
err := selectStmt.QueryRowContext(ctx, eventID).Scan(&eventNID, &stateNID)
|
|
return types.EventNID(eventNID), types.StateSnapshotNID(stateNID), err
|
|
}
|
|
|
|
// bulkSelectStateEventByID lookups a list of state events by event ID.
|
|
// If any of the requested events are missing from the database it returns a types.MissingEventError
|
|
func (s *eventStatements) BulkSelectStateEventByID(
|
|
ctx context.Context, eventIDs []string,
|
|
) ([]types.StateEntry, error) {
|
|
///////////////
|
|
iEventIDs := make([]interface{}, len(eventIDs))
|
|
for k, v := range eventIDs {
|
|
iEventIDs[k] = v
|
|
}
|
|
selectOrig := strings.Replace(bulkSelectStateEventByIDSQL, "($1)", sqlutil.QueryVariadic(len(iEventIDs)), 1)
|
|
selectStmt, err := s.db.Prepare(selectOrig)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
///////////////
|
|
|
|
rows, err := selectStmt.QueryContext(ctx, iEventIDs...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer internal.CloseAndLogIfError(ctx, rows, "bulkSelectStateEventByID: rows.close() failed")
|
|
// We know that we will only get as many results as event IDs
|
|
// because of the unique constraint on event IDs.
|
|
// So we can allocate an array of the correct size now.
|
|
// We might get fewer results than IDs so we adjust the length of the slice before returning it.
|
|
results := make([]types.StateEntry, len(eventIDs))
|
|
i := 0
|
|
for ; rows.Next(); i++ {
|
|
result := &results[i]
|
|
if err = rows.Scan(
|
|
&result.EventTypeNID,
|
|
&result.EventStateKeyNID,
|
|
&result.EventNID,
|
|
); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
if i != len(eventIDs) {
|
|
// If there are fewer rows returned than IDs then we were asked to lookup event IDs we don't have.
|
|
// We don't know which ones were missing because we don't return the string IDs in the query.
|
|
// However it should be possible debug this by replaying queries or entries from the input kafka logs.
|
|
// If this turns out to be impossible and we do need the debug information here, it would be better
|
|
// to do it as a separate query rather than slowing down/complicating the internal case.
|
|
return nil, types.MissingEventError(
|
|
fmt.Sprintf("storage: state event IDs missing from the database (%d != %d)", i, len(eventIDs)),
|
|
)
|
|
}
|
|
return results, err
|
|
}
|
|
|
|
// bulkSelectStateAtEventByID lookups the state at a list of events by event ID.
|
|
// If any of the requested events are missing from the database it returns a types.MissingEventError.
|
|
// If we do not have the state for any of the requested events it returns a types.MissingEventError.
|
|
func (s *eventStatements) BulkSelectStateAtEventByID(
|
|
ctx context.Context, eventIDs []string,
|
|
) ([]types.StateAtEvent, error) {
|
|
///////////////
|
|
iEventIDs := make([]interface{}, len(eventIDs))
|
|
for k, v := range eventIDs {
|
|
iEventIDs[k] = v
|
|
}
|
|
selectOrig := strings.Replace(bulkSelectStateAtEventByIDSQL, "($1)", sqlutil.QueryVariadic(len(iEventIDs)), 1)
|
|
selectStmt, err := s.db.Prepare(selectOrig)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
///////////////
|
|
rows, err := selectStmt.QueryContext(ctx, iEventIDs...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer internal.CloseAndLogIfError(ctx, rows, "bulkSelectStateAtEventByID: rows.close() failed")
|
|
results := make([]types.StateAtEvent, len(eventIDs))
|
|
i := 0
|
|
for ; rows.Next(); i++ {
|
|
result := &results[i]
|
|
if err = rows.Scan(
|
|
&result.EventTypeNID,
|
|
&result.EventStateKeyNID,
|
|
&result.EventNID,
|
|
&result.BeforeStateSnapshotNID,
|
|
&result.IsRejected,
|
|
); err != nil {
|
|
return nil, err
|
|
}
|
|
if result.BeforeStateSnapshotNID == 0 {
|
|
return nil, types.MissingEventError(
|
|
fmt.Sprintf("storage: missing state for event NID %d", result.EventNID),
|
|
)
|
|
}
|
|
}
|
|
if i != len(eventIDs) {
|
|
return nil, types.MissingEventError(
|
|
fmt.Sprintf("storage: event IDs missing from the database (%d != %d)", i, len(eventIDs)),
|
|
)
|
|
}
|
|
return results, err
|
|
}
|
|
|
|
func (s *eventStatements) UpdateEventState(
|
|
ctx context.Context, txn *sql.Tx, eventNID types.EventNID, stateNID types.StateSnapshotNID,
|
|
) error {
|
|
stmt := sqlutil.TxStmt(txn, s.updateEventStateStmt)
|
|
_, err := stmt.ExecContext(ctx, int64(stateNID), int64(eventNID))
|
|
return err
|
|
}
|
|
|
|
func (s *eventStatements) SelectEventSentToOutput(
|
|
ctx context.Context, txn *sql.Tx, eventNID types.EventNID,
|
|
) (sentToOutput bool, err error) {
|
|
selectStmt := sqlutil.TxStmt(txn, s.selectEventSentToOutputStmt)
|
|
err = selectStmt.QueryRowContext(ctx, int64(eventNID)).Scan(&sentToOutput)
|
|
return
|
|
}
|
|
|
|
func (s *eventStatements) UpdateEventSentToOutput(ctx context.Context, txn *sql.Tx, eventNID types.EventNID) error {
|
|
updateStmt := sqlutil.TxStmt(txn, s.updateEventSentToOutputStmt)
|
|
_, err := updateStmt.ExecContext(ctx, int64(eventNID))
|
|
return err
|
|
}
|
|
|
|
func (s *eventStatements) SelectEventID(
|
|
ctx context.Context, txn *sql.Tx, eventNID types.EventNID,
|
|
) (eventID string, err error) {
|
|
selectStmt := sqlutil.TxStmt(txn, s.selectEventIDStmt)
|
|
err = selectStmt.QueryRowContext(ctx, int64(eventNID)).Scan(&eventID)
|
|
return
|
|
}
|
|
|
|
func (s *eventStatements) BulkSelectStateAtEventAndReference(
|
|
ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID,
|
|
) ([]types.StateAtEventAndReference, error) {
|
|
///////////////
|
|
iEventNIDs := make([]interface{}, len(eventNIDs))
|
|
for k, v := range eventNIDs {
|
|
iEventNIDs[k] = v
|
|
}
|
|
selectOrig := strings.Replace(bulkSelectStateAtEventAndReferenceSQL, "($1)", sqlutil.QueryVariadic(len(iEventNIDs)), 1)
|
|
selectPrep, err := s.db.Prepare(selectOrig)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
//////////////
|
|
|
|
rows, err := sqlutil.TxStmt(txn, selectPrep).QueryContext(ctx, iEventNIDs...)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("sqlutil.TxStmt.QueryContext: %w", err)
|
|
}
|
|
defer internal.CloseAndLogIfError(ctx, rows, "bulkSelectStateAtEventAndReference: rows.close() failed")
|
|
results := make([]types.StateAtEventAndReference, len(eventNIDs))
|
|
i := 0
|
|
for ; rows.Next(); i++ {
|
|
var (
|
|
eventTypeNID int64
|
|
eventStateKeyNID int64
|
|
eventNID int64
|
|
stateSnapshotNID int64
|
|
eventID string
|
|
eventSHA256 []byte
|
|
)
|
|
if err = rows.Scan(
|
|
&eventTypeNID, &eventStateKeyNID, &eventNID, &stateSnapshotNID, &eventID, &eventSHA256,
|
|
); err != nil {
|
|
return nil, err
|
|
}
|
|
result := &results[i]
|
|
result.EventTypeNID = types.EventTypeNID(eventTypeNID)
|
|
result.EventStateKeyNID = types.EventStateKeyNID(eventStateKeyNID)
|
|
result.EventNID = types.EventNID(eventNID)
|
|
result.BeforeStateSnapshotNID = types.StateSnapshotNID(stateSnapshotNID)
|
|
result.EventID = eventID
|
|
result.EventSHA256 = eventSHA256
|
|
}
|
|
if i != len(eventNIDs) {
|
|
return nil, fmt.Errorf("storage: event NIDs missing from the database (%d != %d)", i, len(eventNIDs))
|
|
}
|
|
return results, nil
|
|
}
|
|
|
|
func (s *eventStatements) BulkSelectEventReference(
|
|
ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID,
|
|
) ([]gomatrixserverlib.EventReference, error) {
|
|
///////////////
|
|
iEventNIDs := make([]interface{}, len(eventNIDs))
|
|
for k, v := range eventNIDs {
|
|
iEventNIDs[k] = v
|
|
}
|
|
selectOrig := strings.Replace(bulkSelectEventReferenceSQL, "($1)", sqlutil.QueryVariadic(len(iEventNIDs)), 1)
|
|
selectPrep, err := s.db.Prepare(selectOrig)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
///////////////
|
|
|
|
selectStmt := sqlutil.TxStmt(txn, selectPrep)
|
|
rows, err := selectStmt.QueryContext(ctx, iEventNIDs...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer internal.CloseAndLogIfError(ctx, rows, "bulkSelectEventReference: rows.close() failed")
|
|
results := make([]gomatrixserverlib.EventReference, len(eventNIDs))
|
|
i := 0
|
|
for ; rows.Next(); i++ {
|
|
result := &results[i]
|
|
if err = rows.Scan(&result.EventID, &result.EventSHA256); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
if i != len(eventNIDs) {
|
|
return nil, fmt.Errorf("storage: event NIDs missing from the database (%d != %d)", i, len(eventNIDs))
|
|
}
|
|
return results, nil
|
|
}
|
|
|
|
// bulkSelectEventID returns a map from numeric event ID to string event ID.
|
|
func (s *eventStatements) BulkSelectEventID(ctx context.Context, eventNIDs []types.EventNID) (map[types.EventNID]string, error) {
|
|
///////////////
|
|
iEventNIDs := make([]interface{}, len(eventNIDs))
|
|
for k, v := range eventNIDs {
|
|
iEventNIDs[k] = v
|
|
}
|
|
selectOrig := strings.Replace(bulkSelectEventIDSQL, "($1)", sqlutil.QueryVariadic(len(iEventNIDs)), 1)
|
|
selectStmt, err := s.db.Prepare(selectOrig)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
///////////////
|
|
|
|
rows, err := selectStmt.QueryContext(ctx, iEventNIDs...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer internal.CloseAndLogIfError(ctx, rows, "bulkSelectEventID: rows.close() failed")
|
|
results := make(map[types.EventNID]string, len(eventNIDs))
|
|
i := 0
|
|
for ; rows.Next(); i++ {
|
|
var eventNID int64
|
|
var eventID string
|
|
if err = rows.Scan(&eventNID, &eventID); err != nil {
|
|
return nil, err
|
|
}
|
|
results[types.EventNID(eventNID)] = eventID
|
|
}
|
|
if i != len(eventNIDs) {
|
|
return nil, fmt.Errorf("storage: event NIDs missing from the database (%d != %d)", i, len(eventNIDs))
|
|
}
|
|
return results, nil
|
|
}
|
|
|
|
// bulkSelectEventNIDs returns a map from string event ID to numeric event ID.
|
|
// If an event ID is not in the database then it is omitted from the map.
|
|
func (s *eventStatements) BulkSelectEventNID(ctx context.Context, eventIDs []string) (map[string]types.EventNID, error) {
|
|
///////////////
|
|
iEventIDs := make([]interface{}, len(eventIDs))
|
|
for k, v := range eventIDs {
|
|
iEventIDs[k] = v
|
|
}
|
|
selectOrig := strings.Replace(bulkSelectEventNIDSQL, "($1)", sqlutil.QueryVariadic(len(iEventIDs)), 1)
|
|
selectStmt, err := s.db.Prepare(selectOrig)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
///////////////
|
|
rows, err := selectStmt.QueryContext(ctx, iEventIDs...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer internal.CloseAndLogIfError(ctx, rows, "bulkSelectEventNID: rows.close() failed")
|
|
results := make(map[string]types.EventNID, len(eventIDs))
|
|
for rows.Next() {
|
|
var eventID string
|
|
var eventNID int64
|
|
if err = rows.Scan(&eventID, &eventNID); err != nil {
|
|
return nil, err
|
|
}
|
|
results[eventID] = types.EventNID(eventNID)
|
|
}
|
|
return results, nil
|
|
}
|
|
|
|
func (s *eventStatements) SelectMaxEventDepth(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID) (int64, error) {
|
|
var result int64
|
|
iEventIDs := make([]interface{}, len(eventNIDs))
|
|
for i, v := range eventNIDs {
|
|
iEventIDs[i] = v
|
|
}
|
|
sqlStr := strings.Replace(selectMaxEventDepthSQL, "($1)", sqlutil.QueryVariadic(len(iEventIDs)), 1)
|
|
sqlPrep, err := s.db.Prepare(sqlStr)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
err = sqlutil.TxStmt(txn, sqlPrep).QueryRowContext(ctx, iEventIDs...).Scan(&result)
|
|
if err != nil {
|
|
return 0, fmt.Errorf("sqlutil.TxStmt.QueryRowContext: %w", err)
|
|
}
|
|
return result, nil
|
|
}
|
|
|
|
func (s *eventStatements) SelectRoomNIDForEventNID(
|
|
ctx context.Context, eventNID types.EventNID,
|
|
) (roomNID types.RoomNID, err error) {
|
|
err = s.selectRoomNIDForEventNIDStmt.QueryRowContext(ctx, int64(eventNID)).Scan(&roomNID)
|
|
return
|
|
}
|
|
|
|
func eventNIDsAsArray(eventNIDs []types.EventNID) string {
|
|
b, _ := json.Marshal(eventNIDs)
|
|
return string(b)
|
|
}
|