292 lines
8.7 KiB
Go
292 lines
8.7 KiB
Go
// Copyright 2017 Vector Creations Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sqlite3
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import (
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"context"
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"database/sql"
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"strings"
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"time"
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"github.com/matrix-org/dendrite/internal"
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"github.com/matrix-org/dendrite/internal/sqlutil"
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"github.com/matrix-org/dendrite/userapi/api"
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"github.com/matrix-org/dendrite/clientapi/userutil"
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"github.com/matrix-org/gomatrixserverlib"
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)
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const devicesSchema = `
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-- This sequence is used for automatic allocation of session_id.
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-- CREATE SEQUENCE IF NOT EXISTS device_session_id_seq START 1;
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-- Stores data about devices.
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CREATE TABLE IF NOT EXISTS device_devices (
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access_token TEXT PRIMARY KEY,
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session_id INTEGER,
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device_id TEXT ,
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localpart TEXT ,
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created_ts BIGINT,
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display_name TEXT,
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UNIQUE (localpart, device_id)
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);
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`
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const insertDeviceSQL = "" +
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"INSERT INTO device_devices (device_id, localpart, access_token, created_ts, display_name, session_id)" +
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" VALUES ($1, $2, $3, $4, $5, $6)"
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const selectDevicesCountSQL = "" +
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"SELECT COUNT(access_token) FROM device_devices"
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const selectDeviceByTokenSQL = "" +
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"SELECT session_id, device_id, localpart FROM device_devices WHERE access_token = $1"
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const selectDeviceByIDSQL = "" +
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"SELECT display_name FROM device_devices WHERE localpart = $1 and device_id = $2"
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const selectDevicesByLocalpartSQL = "" +
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"SELECT device_id, display_name FROM device_devices WHERE localpart = $1"
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const updateDeviceNameSQL = "" +
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"UPDATE device_devices SET display_name = $1 WHERE localpart = $2 AND device_id = $3"
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const deleteDeviceSQL = "" +
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"DELETE FROM device_devices WHERE device_id = $1 AND localpart = $2"
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const deleteDevicesByLocalpartSQL = "" +
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"DELETE FROM device_devices WHERE localpart = $1"
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const deleteDevicesSQL = "" +
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"DELETE FROM device_devices WHERE localpart = $1 AND device_id IN ($2)"
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const selectDevicesByIDSQL = "" +
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"SELECT device_id, localpart, display_name FROM device_devices WHERE device_id IN ($1)"
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type devicesStatements struct {
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db *sql.DB
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writer sqlutil.Writer
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insertDeviceStmt *sql.Stmt
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selectDevicesCountStmt *sql.Stmt
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selectDeviceByTokenStmt *sql.Stmt
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selectDeviceByIDStmt *sql.Stmt
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selectDevicesByIDStmt *sql.Stmt
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selectDevicesByLocalpartStmt *sql.Stmt
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updateDeviceNameStmt *sql.Stmt
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deleteDeviceStmt *sql.Stmt
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deleteDevicesByLocalpartStmt *sql.Stmt
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serverName gomatrixserverlib.ServerName
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}
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func (s *devicesStatements) prepare(db *sql.DB, writer sqlutil.Writer, server gomatrixserverlib.ServerName) (err error) {
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s.db = db
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s.writer = writer
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_, err = db.Exec(devicesSchema)
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if err != nil {
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return
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}
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if s.insertDeviceStmt, err = db.Prepare(insertDeviceSQL); err != nil {
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return
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}
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if s.selectDevicesCountStmt, err = db.Prepare(selectDevicesCountSQL); err != nil {
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return
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}
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if s.selectDeviceByTokenStmt, err = db.Prepare(selectDeviceByTokenSQL); err != nil {
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return
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}
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if s.selectDeviceByIDStmt, err = db.Prepare(selectDeviceByIDSQL); err != nil {
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return
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}
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if s.selectDevicesByLocalpartStmt, err = db.Prepare(selectDevicesByLocalpartSQL); err != nil {
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return
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}
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if s.updateDeviceNameStmt, err = db.Prepare(updateDeviceNameSQL); err != nil {
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return
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}
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if s.deleteDeviceStmt, err = db.Prepare(deleteDeviceSQL); err != nil {
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return
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}
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if s.deleteDevicesByLocalpartStmt, err = db.Prepare(deleteDevicesByLocalpartSQL); err != nil {
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return
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}
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if s.selectDevicesByIDStmt, err = db.Prepare(selectDevicesByIDSQL); err != nil {
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return
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}
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s.serverName = server
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return
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}
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// insertDevice creates a new device. Returns an error if any device with the same access token already exists.
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// Returns an error if the user already has a device with the given device ID.
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// Returns the device on success.
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func (s *devicesStatements) insertDevice(
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ctx context.Context, txn *sql.Tx, id, localpart, accessToken string,
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displayName *string,
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) (*api.Device, error) {
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createdTimeMS := time.Now().UnixNano() / 1000000
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var sessionID int64
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countStmt := sqlutil.TxStmt(txn, s.selectDevicesCountStmt)
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insertStmt := sqlutil.TxStmt(txn, s.insertDeviceStmt)
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if err := countStmt.QueryRowContext(ctx).Scan(&sessionID); err != nil {
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return nil, err
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}
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sessionID++
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if _, err := insertStmt.ExecContext(ctx, id, localpart, accessToken, createdTimeMS, displayName, sessionID); err != nil {
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return nil, err
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}
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return &api.Device{
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ID: id,
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UserID: userutil.MakeUserID(localpart, s.serverName),
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AccessToken: accessToken,
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SessionID: sessionID,
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}, nil
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}
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func (s *devicesStatements) deleteDevice(
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ctx context.Context, txn *sql.Tx, id, localpart string,
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) error {
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stmt := sqlutil.TxStmt(txn, s.deleteDeviceStmt)
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_, err := stmt.ExecContext(ctx, id, localpart)
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return err
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}
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func (s *devicesStatements) deleteDevices(
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ctx context.Context, txn *sql.Tx, localpart string, devices []string,
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) error {
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orig := strings.Replace(deleteDevicesSQL, "($2)", sqlutil.QueryVariadicOffset(len(devices), 1), 1)
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prep, err := s.db.Prepare(orig)
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if err != nil {
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return err
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}
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stmt := sqlutil.TxStmt(txn, prep)
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params := make([]interface{}, len(devices)+1)
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params[0] = localpart
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for i, v := range devices {
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params[i+1] = v
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}
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_, err = stmt.ExecContext(ctx, params...)
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return err
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}
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func (s *devicesStatements) deleteDevicesByLocalpart(
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ctx context.Context, txn *sql.Tx, localpart string,
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) error {
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stmt := sqlutil.TxStmt(txn, s.deleteDevicesByLocalpartStmt)
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_, err := stmt.ExecContext(ctx, localpart)
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return err
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}
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func (s *devicesStatements) updateDeviceName(
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ctx context.Context, txn *sql.Tx, localpart, deviceID string, displayName *string,
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) error {
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stmt := sqlutil.TxStmt(txn, s.updateDeviceNameStmt)
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_, err := stmt.ExecContext(ctx, displayName, localpart, deviceID)
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return err
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}
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func (s *devicesStatements) selectDeviceByToken(
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ctx context.Context, accessToken string,
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) (*api.Device, error) {
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var dev api.Device
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var localpart string
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stmt := s.selectDeviceByTokenStmt
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err := stmt.QueryRowContext(ctx, accessToken).Scan(&dev.SessionID, &dev.ID, &localpart)
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if err == nil {
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dev.UserID = userutil.MakeUserID(localpart, s.serverName)
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dev.AccessToken = accessToken
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}
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return &dev, err
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}
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// selectDeviceByID retrieves a device from the database with the given user
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// localpart and deviceID
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func (s *devicesStatements) selectDeviceByID(
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ctx context.Context, localpart, deviceID string,
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) (*api.Device, error) {
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var dev api.Device
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var displayName sql.NullString
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stmt := s.selectDeviceByIDStmt
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err := stmt.QueryRowContext(ctx, localpart, deviceID).Scan(&displayName)
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if err == nil {
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dev.ID = deviceID
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dev.UserID = userutil.MakeUserID(localpart, s.serverName)
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if displayName.Valid {
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dev.DisplayName = displayName.String
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}
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}
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return &dev, err
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}
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func (s *devicesStatements) selectDevicesByLocalpart(
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ctx context.Context, localpart string,
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) ([]api.Device, error) {
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devices := []api.Device{}
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rows, err := s.selectDevicesByLocalpartStmt.QueryContext(ctx, localpart)
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if err != nil {
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return devices, err
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}
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for rows.Next() {
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var dev api.Device
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var id, displayname sql.NullString
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err = rows.Scan(&id, &displayname)
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if err != nil {
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return devices, err
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}
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if id.Valid {
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dev.ID = id.String
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}
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if displayname.Valid {
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dev.DisplayName = displayname.String
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}
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dev.UserID = userutil.MakeUserID(localpart, s.serverName)
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devices = append(devices, dev)
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}
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return devices, nil
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}
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func (s *devicesStatements) selectDevicesByID(ctx context.Context, deviceIDs []string) ([]api.Device, error) {
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sqlQuery := strings.Replace(selectDevicesByIDSQL, "($1)", sqlutil.QueryVariadic(len(deviceIDs)), 1)
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iDeviceIDs := make([]interface{}, len(deviceIDs))
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for i := range deviceIDs {
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iDeviceIDs[i] = deviceIDs[i]
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}
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rows, err := s.db.QueryContext(ctx, sqlQuery, iDeviceIDs...)
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if err != nil {
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return nil, err
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}
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defer internal.CloseAndLogIfError(ctx, rows, "selectDevicesByID: rows.close() failed")
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var devices []api.Device
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for rows.Next() {
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var dev api.Device
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var localpart string
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var displayName sql.NullString
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if err := rows.Scan(&dev.ID, &localpart, &displayName); err != nil {
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return nil, err
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}
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if displayName.Valid {
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dev.DisplayName = displayName.String
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}
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dev.UserID = userutil.MakeUserID(localpart, s.serverName)
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devices = append(devices, dev)
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}
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return devices, rows.Err()
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}
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