132 lines
4.3 KiB
Go
132 lines
4.3 KiB
Go
// Copyright 2020 The Matrix.org Foundation C.I.C.
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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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"time"
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"github.com/lib/pq"
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"github.com/matrix-org/dendrite/internal/sqlutil"
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"github.com/matrix-org/dendrite/internal"
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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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var staleDeviceListsSchema = `
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-- Stores whether a user's device lists are stale or not.
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CREATE TABLE IF NOT EXISTS keyserver_stale_device_lists (
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user_id TEXT PRIMARY KEY NOT NULL,
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domain TEXT NOT NULL,
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is_stale BOOLEAN NOT NULL,
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ts_added_secs BIGINT NOT NULL
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);
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CREATE INDEX IF NOT EXISTS keyserver_stale_device_lists_idx ON keyserver_stale_device_lists (domain, is_stale);
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`
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const upsertStaleDeviceListSQL = "" +
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"INSERT INTO keyserver_stale_device_lists (user_id, domain, is_stale, ts_added_secs)" +
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" VALUES ($1, $2, $3, $4)" +
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" ON CONFLICT (user_id)" +
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" DO UPDATE SET is_stale = $3, ts_added_secs = $4"
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const selectStaleDeviceListsWithDomainsSQL = "" +
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"SELECT user_id FROM keyserver_stale_device_lists WHERE is_stale = $1 AND domain = $2 ORDER BY ts_added_secs DESC"
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const selectStaleDeviceListsSQL = "" +
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"SELECT user_id FROM keyserver_stale_device_lists WHERE is_stale = $1 ORDER BY ts_added_secs DESC"
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const deleteStaleDevicesSQL = "" +
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"DELETE FROM keyserver_stale_device_lists WHERE user_id = ANY($1)"
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type staleDeviceListsStatements struct {
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upsertStaleDeviceListStmt *sql.Stmt
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selectStaleDeviceListsWithDomainsStmt *sql.Stmt
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selectStaleDeviceListsStmt *sql.Stmt
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deleteStaleDeviceListsStmt *sql.Stmt
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}
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func NewPostgresStaleDeviceListsTable(db *sql.DB) (tables.StaleDeviceLists, error) {
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s := &staleDeviceListsStatements{}
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_, err := db.Exec(staleDeviceListsSchema)
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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.upsertStaleDeviceListStmt, upsertStaleDeviceListSQL},
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{&s.selectStaleDeviceListsStmt, selectStaleDeviceListsSQL},
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{&s.selectStaleDeviceListsWithDomainsStmt, selectStaleDeviceListsWithDomainsSQL},
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{&s.deleteStaleDeviceListsStmt, deleteStaleDevicesSQL},
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}.Prepare(db)
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}
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func (s *staleDeviceListsStatements) InsertStaleDeviceList(ctx context.Context, userID string, isStale bool) error {
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_, domain, err := gomatrixserverlib.SplitID('@', userID)
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if err != nil {
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return err
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}
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_, err = s.upsertStaleDeviceListStmt.ExecContext(ctx, userID, string(domain), isStale, gomatrixserverlib.AsTimestamp(time.Now()))
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return err
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}
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func (s *staleDeviceListsStatements) SelectUserIDsWithStaleDeviceLists(ctx context.Context, domains []gomatrixserverlib.ServerName) ([]string, error) {
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// we only query for 1 domain or all domains so optimise for those use cases
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if len(domains) == 0 {
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rows, err := s.selectStaleDeviceListsStmt.QueryContext(ctx, true)
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if err != nil {
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return nil, err
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}
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return rowsToUserIDs(ctx, rows)
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}
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var result []string
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for _, domain := range domains {
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rows, err := s.selectStaleDeviceListsWithDomainsStmt.QueryContext(ctx, true, string(domain))
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if err != nil {
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return nil, err
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}
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userIDs, err := rowsToUserIDs(ctx, rows)
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if err != nil {
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return nil, err
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}
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result = append(result, userIDs...)
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}
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return result, nil
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}
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// DeleteStaleDeviceLists removes users from stale device lists
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func (s *staleDeviceListsStatements) DeleteStaleDeviceLists(
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ctx context.Context, txn *sql.Tx, userIDs []string,
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) error {
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stmt := sqlutil.TxStmt(txn, s.deleteStaleDeviceListsStmt)
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_, err := stmt.ExecContext(ctx, pq.Array(userIDs))
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return err
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}
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func rowsToUserIDs(ctx context.Context, rows *sql.Rows) (result []string, err error) {
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defer internal.CloseAndLogIfError(ctx, rows, "closing rowsToUserIDs failed")
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for rows.Next() {
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var userID string
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if err := rows.Scan(&userID); err != nil {
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return nil, err
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}
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result = append(result, userID)
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}
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return result, rows.Err()
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}
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