dendrite/federationapi/storage/sqlite3/queue_pdus_table.go
kegsay 72285b2659
refactor: update GMSL (#3058)
Sister PR to https://github.com/matrix-org/gomatrixserverlib/pull/364

Read this commit by commit to avoid going insane.
2023-04-19 15:50:33 +01:00

206 lines
6.2 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"
"fmt"
"strings"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/gomatrixserverlib/spec"
)
const queuePDUsSchema = `
CREATE TABLE IF NOT EXISTS federationsender_queue_pdus (
-- The transaction ID that was generated before persisting the event.
transaction_id TEXT NOT NULL,
-- The domain part of the user ID the m.room.member event is for.
server_name TEXT NOT NULL,
-- The JSON NID from the federationsender_queue_pdus_json table.
json_nid BIGINT NOT NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS federationsender_queue_pdus_pdus_json_nid_idx
ON federationsender_queue_pdus (json_nid, server_name);
CREATE INDEX IF NOT EXISTS federationsender_queue_pdus_json_nid_idx
ON federationsender_queue_pdus (json_nid);
CREATE INDEX IF NOT EXISTS federationsender_queue_pdus_server_name_idx
ON federationsender_queue_pdus (server_name);
`
const insertQueuePDUSQL = "" +
"INSERT INTO federationsender_queue_pdus (transaction_id, server_name, json_nid)" +
" VALUES ($1, $2, $3)"
const deleteQueuePDUsSQL = "" +
"DELETE FROM federationsender_queue_pdus WHERE server_name = $1 AND json_nid IN ($2)"
const selectQueueNextTransactionIDSQL = "" +
"SELECT transaction_id FROM federationsender_queue_pdus" +
" WHERE server_name = $1" +
" ORDER BY transaction_id ASC" +
" LIMIT 1"
const selectQueuePDUsSQL = "" +
"SELECT json_nid FROM federationsender_queue_pdus" +
" WHERE server_name = $1" +
" LIMIT $2"
const selectQueuePDUsReferenceJSONCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_pdus" +
" WHERE json_nid = $1"
const selectQueuePDUsServerNamesSQL = "" +
"SELECT DISTINCT server_name FROM federationsender_queue_pdus"
type queuePDUsStatements struct {
db *sql.DB
insertQueuePDUStmt *sql.Stmt
selectQueueNextTransactionIDStmt *sql.Stmt
selectQueuePDUsStmt *sql.Stmt
selectQueueReferenceJSONCountStmt *sql.Stmt
selectQueueServerNamesStmt *sql.Stmt
// deleteQueuePDUsStmt *sql.Stmt - prepared at runtime due to variadic
}
func NewSQLiteQueuePDUsTable(db *sql.DB) (s *queuePDUsStatements, err error) {
s = &queuePDUsStatements{
db: db,
}
_, err = db.Exec(queuePDUsSchema)
if err != nil {
return
}
return s, sqlutil.StatementList{
{&s.insertQueuePDUStmt, insertQueuePDUSQL},
{&s.selectQueueNextTransactionIDStmt, selectQueueNextTransactionIDSQL},
{&s.selectQueuePDUsStmt, selectQueuePDUsSQL},
{&s.selectQueueReferenceJSONCountStmt, selectQueuePDUsReferenceJSONCountSQL},
{&s.selectQueueServerNamesStmt, selectQueuePDUsServerNamesSQL},
}.Prepare(db)
}
func (s *queuePDUsStatements) InsertQueuePDU(
ctx context.Context,
txn *sql.Tx,
transactionID gomatrixserverlib.TransactionID,
serverName spec.ServerName,
nid int64,
) error {
stmt := sqlutil.TxStmt(txn, s.insertQueuePDUStmt)
_, err := stmt.ExecContext(
ctx,
transactionID, // the transaction ID that we initially attempted
serverName, // destination server name
nid, // JSON blob NID
)
return err
}
func (s *queuePDUsStatements) DeleteQueuePDUs(
ctx context.Context, txn *sql.Tx,
serverName spec.ServerName,
jsonNIDs []int64,
) error {
deleteSQL := strings.Replace(deleteQueuePDUsSQL, "($2)", sqlutil.QueryVariadicOffset(len(jsonNIDs), 1), 1)
deleteStmt, err := txn.Prepare(deleteSQL)
if err != nil {
return fmt.Errorf("s.deleteQueueJSON s.db.Prepare: %w", err)
}
params := make([]interface{}, len(jsonNIDs)+1)
params[0] = serverName
for k, v := range jsonNIDs {
params[k+1] = v
}
stmt := sqlutil.TxStmt(txn, deleteStmt)
_, err = stmt.ExecContext(ctx, params...)
return err
}
func (s *queuePDUsStatements) SelectQueuePDUNextTransactionID(
ctx context.Context, txn *sql.Tx, serverName spec.ServerName,
) (gomatrixserverlib.TransactionID, error) {
var transactionID gomatrixserverlib.TransactionID
stmt := sqlutil.TxStmt(txn, s.selectQueueNextTransactionIDStmt)
err := stmt.QueryRowContext(ctx, serverName).Scan(&transactionID)
if err == sql.ErrNoRows {
return "", nil
}
return transactionID, err
}
func (s *queuePDUsStatements) SelectQueuePDUReferenceJSONCount(
ctx context.Context, txn *sql.Tx, jsonNID int64,
) (int64, error) {
var count int64
stmt := sqlutil.TxStmt(txn, s.selectQueueReferenceJSONCountStmt)
err := stmt.QueryRowContext(ctx, jsonNID).Scan(&count)
if err == sql.ErrNoRows {
return -1, nil
}
return count, err
}
func (s *queuePDUsStatements) SelectQueuePDUs(
ctx context.Context, txn *sql.Tx,
serverName spec.ServerName,
limit int,
) ([]int64, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueuePDUsStmt)
rows, err := stmt.QueryContext(ctx, serverName, limit)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "queueFromStmt: rows.close() failed")
var result []int64
for rows.Next() {
var nid int64
if err = rows.Scan(&nid); err != nil {
return nil, err
}
result = append(result, nid)
}
return result, rows.Err()
}
func (s *queuePDUsStatements) SelectQueuePDUServerNames(
ctx context.Context, txn *sql.Tx,
) ([]spec.ServerName, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueueServerNamesStmt)
rows, err := stmt.QueryContext(ctx)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "queueFromStmt: rows.close() failed")
var result []spec.ServerName
for rows.Next() {
var serverName spec.ServerName
if err = rows.Scan(&serverName); err != nil {
return nil, err
}
result = append(result, serverName)
}
return result, rows.Err()
}