mirror of
https://github.com/matrix-org/dendrite
synced 2024-09-07 19:55:39 +02:00
* Fix #897 and shuffle directory around * Update find-lint * goimports Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
207 lines
6.8 KiB
Go
207 lines
6.8 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"
|
|
|
|
"github.com/matrix-org/dendrite/internal"
|
|
"github.com/matrix-org/dendrite/roomserver/types"
|
|
)
|
|
|
|
type membershipState int64
|
|
|
|
const (
|
|
membershipStateLeaveOrBan membershipState = 1
|
|
membershipStateInvite membershipState = 2
|
|
membershipStateJoin membershipState = 3
|
|
)
|
|
|
|
const membershipSchema = `
|
|
CREATE TABLE IF NOT EXISTS roomserver_membership (
|
|
room_nid INTEGER NOT NULL,
|
|
target_nid INTEGER NOT NULL,
|
|
sender_nid INTEGER NOT NULL DEFAULT 0,
|
|
membership_nid INTEGER NOT NULL DEFAULT 1,
|
|
event_nid INTEGER NOT NULL DEFAULT 0,
|
|
target_local BOOLEAN NOT NULL DEFAULT false,
|
|
UNIQUE (room_nid, target_nid)
|
|
);
|
|
`
|
|
|
|
// Insert a row in to membership table so that it can be locked by the
|
|
// SELECT FOR UPDATE
|
|
const insertMembershipSQL = "" +
|
|
"INSERT INTO roomserver_membership (room_nid, target_nid, target_local)" +
|
|
" VALUES ($1, $2, $3)" +
|
|
" ON CONFLICT DO NOTHING"
|
|
|
|
const selectMembershipFromRoomAndTargetSQL = "" +
|
|
"SELECT membership_nid, event_nid FROM roomserver_membership" +
|
|
" WHERE room_nid = $1 AND target_nid = $2"
|
|
|
|
const selectMembershipsFromRoomAndMembershipSQL = "" +
|
|
"SELECT event_nid FROM roomserver_membership" +
|
|
" WHERE room_nid = $1 AND membership_nid = $2"
|
|
|
|
const selectLocalMembershipsFromRoomAndMembershipSQL = "" +
|
|
"SELECT event_nid FROM roomserver_membership" +
|
|
" WHERE room_nid = $1 AND membership_nid = $2" +
|
|
" AND target_local = true"
|
|
|
|
const selectMembershipsFromRoomSQL = "" +
|
|
"SELECT event_nid FROM roomserver_membership" +
|
|
" WHERE room_nid = $1"
|
|
|
|
const selectLocalMembershipsFromRoomSQL = "" +
|
|
"SELECT event_nid FROM roomserver_membership" +
|
|
" WHERE room_nid = $1" +
|
|
" AND target_local = true"
|
|
|
|
const selectMembershipForUpdateSQL = "" +
|
|
"SELECT membership_nid FROM roomserver_membership" +
|
|
" WHERE room_nid = $1 AND target_nid = $2"
|
|
|
|
const updateMembershipSQL = "" +
|
|
"UPDATE roomserver_membership SET sender_nid = $1, membership_nid = $2, event_nid = $3" +
|
|
" WHERE room_nid = $4 AND target_nid = $5"
|
|
|
|
type membershipStatements struct {
|
|
insertMembershipStmt *sql.Stmt
|
|
selectMembershipForUpdateStmt *sql.Stmt
|
|
selectMembershipFromRoomAndTargetStmt *sql.Stmt
|
|
selectMembershipsFromRoomAndMembershipStmt *sql.Stmt
|
|
selectLocalMembershipsFromRoomAndMembershipStmt *sql.Stmt
|
|
selectMembershipsFromRoomStmt *sql.Stmt
|
|
selectLocalMembershipsFromRoomStmt *sql.Stmt
|
|
updateMembershipStmt *sql.Stmt
|
|
}
|
|
|
|
func (s *membershipStatements) prepare(db *sql.DB) (err error) {
|
|
_, err = db.Exec(membershipSchema)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
return statementList{
|
|
{&s.insertMembershipStmt, insertMembershipSQL},
|
|
{&s.selectMembershipForUpdateStmt, selectMembershipForUpdateSQL},
|
|
{&s.selectMembershipFromRoomAndTargetStmt, selectMembershipFromRoomAndTargetSQL},
|
|
{&s.selectMembershipsFromRoomAndMembershipStmt, selectMembershipsFromRoomAndMembershipSQL},
|
|
{&s.selectLocalMembershipsFromRoomAndMembershipStmt, selectLocalMembershipsFromRoomAndMembershipSQL},
|
|
{&s.selectMembershipsFromRoomStmt, selectMembershipsFromRoomSQL},
|
|
{&s.selectLocalMembershipsFromRoomStmt, selectLocalMembershipsFromRoomSQL},
|
|
{&s.updateMembershipStmt, updateMembershipSQL},
|
|
}.prepare(db)
|
|
}
|
|
|
|
func (s *membershipStatements) insertMembership(
|
|
ctx context.Context, txn *sql.Tx,
|
|
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
|
|
localTarget bool,
|
|
) error {
|
|
stmt := internal.TxStmt(txn, s.insertMembershipStmt)
|
|
_, err := stmt.ExecContext(ctx, roomNID, targetUserNID, localTarget)
|
|
return err
|
|
}
|
|
|
|
func (s *membershipStatements) selectMembershipForUpdate(
|
|
ctx context.Context, txn *sql.Tx,
|
|
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
|
|
) (membership membershipState, err error) {
|
|
stmt := internal.TxStmt(txn, s.selectMembershipForUpdateStmt)
|
|
err = stmt.QueryRowContext(
|
|
ctx, roomNID, targetUserNID,
|
|
).Scan(&membership)
|
|
return
|
|
}
|
|
|
|
func (s *membershipStatements) selectMembershipFromRoomAndTarget(
|
|
ctx context.Context, txn *sql.Tx,
|
|
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
|
|
) (eventNID types.EventNID, membership membershipState, err error) {
|
|
selectStmt := internal.TxStmt(txn, s.selectMembershipFromRoomAndTargetStmt)
|
|
err = selectStmt.QueryRowContext(
|
|
ctx, roomNID, targetUserNID,
|
|
).Scan(&membership, &eventNID)
|
|
return
|
|
}
|
|
|
|
func (s *membershipStatements) selectMembershipsFromRoom(
|
|
ctx context.Context, txn *sql.Tx,
|
|
roomNID types.RoomNID, localOnly bool,
|
|
) (eventNIDs []types.EventNID, err error) {
|
|
var selectStmt *sql.Stmt
|
|
if localOnly {
|
|
selectStmt = internal.TxStmt(txn, s.selectLocalMembershipsFromRoomStmt)
|
|
} else {
|
|
selectStmt = internal.TxStmt(txn, s.selectMembershipsFromRoomStmt)
|
|
}
|
|
rows, err := selectStmt.QueryContext(ctx, roomNID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer internal.CloseAndLogIfError(ctx, rows, "selectMembershipsFromRoom: rows.close() failed")
|
|
|
|
for rows.Next() {
|
|
var eNID types.EventNID
|
|
if err = rows.Scan(&eNID); err != nil {
|
|
return
|
|
}
|
|
eventNIDs = append(eventNIDs, eNID)
|
|
}
|
|
return
|
|
}
|
|
|
|
func (s *membershipStatements) selectMembershipsFromRoomAndMembership(
|
|
ctx context.Context, txn *sql.Tx,
|
|
roomNID types.RoomNID, membership membershipState, localOnly bool,
|
|
) (eventNIDs []types.EventNID, err error) {
|
|
var stmt *sql.Stmt
|
|
if localOnly {
|
|
stmt = internal.TxStmt(txn, s.selectLocalMembershipsFromRoomAndMembershipStmt)
|
|
} else {
|
|
stmt = internal.TxStmt(txn, s.selectMembershipsFromRoomAndMembershipStmt)
|
|
}
|
|
rows, err := stmt.QueryContext(ctx, roomNID, membership)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer internal.CloseAndLogIfError(ctx, rows, "selectMembershipsFromRoomAndMembership: rows.close() failed")
|
|
|
|
for rows.Next() {
|
|
var eNID types.EventNID
|
|
if err = rows.Scan(&eNID); err != nil {
|
|
return
|
|
}
|
|
eventNIDs = append(eventNIDs, eNID)
|
|
}
|
|
return
|
|
}
|
|
|
|
func (s *membershipStatements) updateMembership(
|
|
ctx context.Context, txn *sql.Tx,
|
|
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,
|
|
senderUserNID types.EventStateKeyNID, membership membershipState,
|
|
eventNID types.EventNID,
|
|
) error {
|
|
stmt := internal.TxStmt(txn, s.updateMembershipStmt)
|
|
_, err := stmt.ExecContext(
|
|
ctx, senderUserNID, membership, eventNID, roomNID, targetUserNID,
|
|
)
|
|
return err
|
|
}
|