mirror of
https://github.com/matrix-org/dendrite
synced 2024-12-16 00:02:59 +00:00
234ed603e6
Doesn't buy us much, but makes everything a bit more consistent. Also removes the SQL trace driver, as it is unused and the output is hard to read anyway.
108 lines
3.2 KiB
Go
108 lines
3.2 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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"github.com/matrix-org/dendrite/internal/sqlutil"
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"github.com/matrix-org/gomatrixserverlib"
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)
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const blacklistSchema = `
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CREATE TABLE IF NOT EXISTS federationsender_blacklist (
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-- The blacklisted server name
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server_name TEXT NOT NULL,
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UNIQUE (server_name)
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);
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`
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const insertBlacklistSQL = "" +
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"INSERT INTO federationsender_blacklist (server_name) VALUES ($1)" +
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" ON CONFLICT DO NOTHING"
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const selectBlacklistSQL = "" +
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"SELECT server_name FROM federationsender_blacklist WHERE server_name = $1"
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const deleteBlacklistSQL = "" +
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"DELETE FROM federationsender_blacklist WHERE server_name = $1"
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const deleteAllBlacklistSQL = "" +
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"TRUNCATE federationsender_blacklist"
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type blacklistStatements struct {
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db *sql.DB
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insertBlacklistStmt *sql.Stmt
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selectBlacklistStmt *sql.Stmt
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deleteBlacklistStmt *sql.Stmt
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deleteAllBlacklistStmt *sql.Stmt
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}
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func NewPostgresBlacklistTable(db *sql.DB) (s *blacklistStatements, err error) {
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s = &blacklistStatements{
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db: db,
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}
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_, err = db.Exec(blacklistSchema)
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if err != nil {
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return
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}
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return s, sqlutil.StatementList{
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{&s.insertBlacklistStmt, insertBlacklistSQL},
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{&s.selectBlacklistStmt, selectBlacklistSQL},
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{&s.deleteBlacklistStmt, deleteBlacklistSQL},
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{&s.deleteAllBlacklistStmt, deleteAllBlacklistSQL},
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}.Prepare(db)
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}
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func (s *blacklistStatements) InsertBlacklist(
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ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
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) error {
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stmt := sqlutil.TxStmt(txn, s.insertBlacklistStmt)
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_, err := stmt.ExecContext(ctx, serverName)
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return err
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}
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func (s *blacklistStatements) SelectBlacklist(
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ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
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) (bool, error) {
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stmt := sqlutil.TxStmt(txn, s.selectBlacklistStmt)
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res, err := stmt.QueryContext(ctx, serverName)
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if err != nil {
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return false, err
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}
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defer res.Close() // nolint:errcheck
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// The query will return the server name if the server is blacklisted, and
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// will return no rows if not. By calling Next, we find out if a row was
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// returned or not - we don't care about the value itself.
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return res.Next(), nil
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}
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func (s *blacklistStatements) DeleteBlacklist(
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ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
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) error {
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stmt := sqlutil.TxStmt(txn, s.deleteBlacklistStmt)
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_, err := stmt.ExecContext(ctx, serverName)
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return err
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}
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func (s *blacklistStatements) DeleteAllBlacklist(
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ctx context.Context, txn *sql.Tx,
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) error {
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stmt := sqlutil.TxStmt(txn, s.deleteAllBlacklistStmt)
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_, err := stmt.ExecContext(ctx)
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return err
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}
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