mirror of
https://github.com/matrix-org/dendrite.git
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339 lines
12 KiB
Go
339 lines
12 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 postgres
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import (
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"context"
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"database/sql"
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"fmt"
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"time"
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"github.com/lib/pq"
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"github.com/matrix-org/dendrite/clientapi/userutil"
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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/userapi/storage/postgres/deltas"
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"github.com/matrix-org/dendrite/userapi/storage/tables"
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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 userapi_device_session_id_seq START 1;
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-- Stores data about devices.
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CREATE TABLE IF NOT EXISTS userapi_devices (
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-- The access token granted to this device. This has to be the primary key
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-- so we can distinguish which device is making a given request.
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access_token TEXT NOT NULL PRIMARY KEY,
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-- The auto-allocated unique ID of the session identified by the access token.
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-- This can be used as a secure substitution of the access token in situations
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-- where data is associated with access tokens (e.g. transaction storage),
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-- so we don't have to store users' access tokens everywhere.
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session_id BIGINT NOT NULL DEFAULT nextval('userapi_device_session_id_seq'),
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-- The device identifier. This only needs to uniquely identify a device for a given user, not globally.
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-- access_tokens will be clobbered based on the device ID for a user.
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device_id TEXT NOT NULL,
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-- The Matrix user ID localpart for this device. This is preferable to storing the full user_id
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-- as it is smaller, makes it clearer that we only manage devices for our own users, and may make
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-- migration to different domain names easier.
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localpart TEXT NOT NULL,
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server_name TEXT NOT NULL,
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-- When this devices was first recognised on the network, as a unix timestamp (ms resolution).
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created_ts BIGINT NOT NULL,
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-- The display name, human friendlier than device_id and updatable
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display_name TEXT,
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-- The time the device was last used, as a unix timestamp (ms resolution).
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last_seen_ts BIGINT NOT NULL,
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-- The last seen IP address of this device
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ip TEXT,
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-- User agent of this device
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user_agent TEXT
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-- TODO: device keys, device display names, token restrictions (if 3rd-party OAuth app)
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);
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-- Device IDs must be unique for a given user.
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CREATE UNIQUE INDEX IF NOT EXISTS userapi_device_localpart_id_idx ON userapi_devices(localpart, server_name, device_id);
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`
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const insertDeviceSQL = "" +
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"INSERT INTO userapi_devices(device_id, localpart, server_name, access_token, created_ts, display_name, last_seen_ts, ip, user_agent) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)" +
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" RETURNING session_id"
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const selectDeviceByTokenSQL = "" +
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"SELECT session_id, device_id, localpart, server_name FROM userapi_devices WHERE access_token = $1"
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const selectDeviceByIDSQL = "" +
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"SELECT display_name, last_seen_ts, ip FROM userapi_devices WHERE localpart = $1 AND server_name = $2 AND device_id = $3"
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const selectDevicesByLocalpartSQL = "" +
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"SELECT device_id, display_name, last_seen_ts, ip, user_agent FROM userapi_devices WHERE localpart = $1 AND server_name = $2 AND device_id != $3 ORDER BY last_seen_ts DESC"
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const updateDeviceNameSQL = "" +
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"UPDATE userapi_devices SET display_name = $1 WHERE localpart = $2 AND server_name = $3 AND device_id = $4"
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const deleteDeviceSQL = "" +
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"DELETE FROM userapi_devices WHERE device_id = $1 AND localpart = $2 AND server_name = $3"
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const deleteDevicesByLocalpartSQL = "" +
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"DELETE FROM userapi_devices WHERE localpart = $1 AND server_name = $2 AND device_id != $3"
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const deleteDevicesSQL = "" +
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"DELETE FROM userapi_devices WHERE localpart = $1 AND server_name = $2 AND device_id = ANY($3)"
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const selectDevicesByIDSQL = "" +
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"SELECT device_id, localpart, server_name, display_name, last_seen_ts FROM userapi_devices WHERE device_id = ANY($1) ORDER BY last_seen_ts DESC"
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const updateDeviceLastSeen = "" +
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"UPDATE userapi_devices SET last_seen_ts = $1, ip = $2, user_agent = $3 WHERE localpart = $4 AND server_name = $5 AND device_id = $6"
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type devicesStatements struct {
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insertDeviceStmt *sql.Stmt
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selectDeviceByTokenStmt *sql.Stmt
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selectDeviceByIDStmt *sql.Stmt
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selectDevicesByLocalpartStmt *sql.Stmt
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selectDevicesByIDStmt *sql.Stmt
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updateDeviceNameStmt *sql.Stmt
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updateDeviceLastSeenStmt *sql.Stmt
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deleteDeviceStmt *sql.Stmt
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deleteDevicesByLocalpartStmt *sql.Stmt
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deleteDevicesStmt *sql.Stmt
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serverName gomatrixserverlib.ServerName
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}
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func NewPostgresDevicesTable(db *sql.DB, serverName gomatrixserverlib.ServerName) (tables.DevicesTable, error) {
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s := &devicesStatements{
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serverName: serverName,
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}
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_, err := db.Exec(devicesSchema)
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if err != nil {
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return nil, err
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}
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m := sqlutil.NewMigrator(db)
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m.AddMigrations(sqlutil.Migration{
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Version: "userapi: add last_seen_ts",
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Up: deltas.UpLastSeenTSIP,
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})
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err = m.Up(context.Background())
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if err != nil {
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return nil, err
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}
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return s, sqlutil.StatementList{
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{&s.insertDeviceStmt, insertDeviceSQL},
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{&s.selectDeviceByTokenStmt, selectDeviceByTokenSQL},
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{&s.selectDeviceByIDStmt, selectDeviceByIDSQL},
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{&s.selectDevicesByLocalpartStmt, selectDevicesByLocalpartSQL},
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{&s.updateDeviceNameStmt, updateDeviceNameSQL},
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{&s.deleteDeviceStmt, deleteDeviceSQL},
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{&s.deleteDevicesByLocalpartStmt, deleteDevicesByLocalpartSQL},
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{&s.deleteDevicesStmt, deleteDevicesSQL},
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{&s.selectDevicesByIDStmt, selectDevicesByIDSQL},
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{&s.updateDeviceLastSeenStmt, updateDeviceLastSeen},
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}.Prepare(db)
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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 string,
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localpart string, serverName gomatrixserverlib.ServerName,
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accessToken string, displayName *string, ipAddr, userAgent 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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stmt := sqlutil.TxStmt(txn, s.insertDeviceStmt)
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if err := stmt.QueryRowContext(ctx, id, localpart, serverName, accessToken, createdTimeMS, displayName, createdTimeMS, ipAddr, userAgent).Scan(&sessionID); err != nil {
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return nil, fmt.Errorf("insertDeviceStmt: %w", 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, serverName),
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AccessToken: accessToken,
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SessionID: sessionID,
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LastSeenTS: createdTimeMS,
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LastSeenIP: ipAddr,
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UserAgent: userAgent,
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}, nil
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}
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// deleteDevice removes a single device by id and user localpart.
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func (s *devicesStatements) DeleteDevice(
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ctx context.Context, txn *sql.Tx, id string,
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localpart string, serverName gomatrixserverlib.ServerName,
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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, serverName)
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return err
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}
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// deleteDevices removes a single or multiple devices by ids and user localpart.
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// Returns an error if the execution failed.
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func (s *devicesStatements) DeleteDevices(
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ctx context.Context, txn *sql.Tx,
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localpart string, serverName gomatrixserverlib.ServerName,
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devices []string,
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) error {
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stmt := sqlutil.TxStmt(txn, s.deleteDevicesStmt)
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_, err := stmt.ExecContext(ctx, localpart, serverName, pq.Array(devices))
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return err
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}
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// deleteDevicesByLocalpart removes all devices for the
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// given user localpart.
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func (s *devicesStatements) DeleteDevicesByLocalpart(
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ctx context.Context, txn *sql.Tx,
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localpart string, serverName gomatrixserverlib.ServerName,
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exceptDeviceID 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, serverName, exceptDeviceID)
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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,
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localpart string, serverName gomatrixserverlib.ServerName,
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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, serverName, 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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var serverName gomatrixserverlib.ServerName
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stmt := s.selectDeviceByTokenStmt
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err := stmt.QueryRowContext(ctx, accessToken).Scan(&dev.SessionID, &dev.ID, &localpart, &serverName)
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if err == nil {
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dev.UserID = userutil.MakeUserID(localpart, 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,
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localpart string, serverName gomatrixserverlib.ServerName,
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deviceID string,
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) (*api.Device, error) {
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var dev api.Device
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var displayName, ip sql.NullString
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var lastseenTS sql.NullInt64
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stmt := s.selectDeviceByIDStmt
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err := stmt.QueryRowContext(ctx, localpart, serverName, deviceID).Scan(&displayName, &lastseenTS, &ip)
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if err == nil {
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dev.ID = deviceID
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dev.UserID = userutil.MakeUserID(localpart, serverName)
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if displayName.Valid {
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dev.DisplayName = displayName.String
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}
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if lastseenTS.Valid {
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dev.LastSeenTS = lastseenTS.Int64
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}
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if ip.Valid {
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dev.LastSeenIP = ip.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) SelectDevicesByID(ctx context.Context, deviceIDs []string) ([]api.Device, error) {
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rows, err := s.selectDevicesByIDStmt.QueryContext(ctx, pq.StringArray(deviceIDs))
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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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var dev api.Device
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var localpart string
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var serverName gomatrixserverlib.ServerName
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var lastseents sql.NullInt64
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var displayName sql.NullString
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for rows.Next() {
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if err := rows.Scan(&dev.ID, &localpart, &serverName, &displayName, &lastseents); 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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if lastseents.Valid {
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dev.LastSeenTS = lastseents.Int64
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}
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dev.UserID = userutil.MakeUserID(localpart, 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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func (s *devicesStatements) SelectDevicesByLocalpart(
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ctx context.Context, txn *sql.Tx,
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localpart string, serverName gomatrixserverlib.ServerName,
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exceptDeviceID string,
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) ([]api.Device, error) {
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devices := []api.Device{}
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rows, err := sqlutil.TxStmt(txn, s.selectDevicesByLocalpartStmt).QueryContext(ctx, localpart, serverName, exceptDeviceID)
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if err != nil {
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return devices, err
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}
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defer internal.CloseAndLogIfError(ctx, rows, "selectDevicesByLocalpart: rows.close() failed")
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var dev api.Device
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var lastseents sql.NullInt64
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var id, displayname, ip, useragent sql.NullString
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for rows.Next() {
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err = rows.Scan(&id, &displayname, &lastseents, &ip, &useragent)
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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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if lastseents.Valid {
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dev.LastSeenTS = lastseents.Int64
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}
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if ip.Valid {
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dev.LastSeenIP = ip.String
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}
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if useragent.Valid {
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dev.UserAgent = useragent.String
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}
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dev.UserID = userutil.MakeUserID(localpart, 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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func (s *devicesStatements) UpdateDeviceLastSeen(ctx context.Context, txn *sql.Tx, localpart string, serverName gomatrixserverlib.ServerName, deviceID, ipAddr, userAgent string) error {
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lastSeenTs := time.Now().UnixNano() / 1000000
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stmt := sqlutil.TxStmt(txn, s.updateDeviceLastSeenStmt)
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_, err := stmt.ExecContext(ctx, lastSeenTs, ipAddr, userAgent, localpart, serverName, deviceID)
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return err
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}
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