mirror of
https://github.com/matrix-org/dendrite
synced 2024-12-27 12:53:43 +01:00
239 lines
7.2 KiB
Go
239 lines
7.2 KiB
Go
// Copyright 2017-2018 New Vector Ltd
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// Copyright 2019-2020 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 sqlite3
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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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"strings"
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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/gomatrixserverlib"
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)
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const queuePDUsSchema = `
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CREATE TABLE IF NOT EXISTS federationsender_queue_pdus (
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-- The transaction ID that was generated before persisting the event.
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transaction_id TEXT NOT NULL,
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-- The domain part of the user ID the m.room.member event is for.
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server_name TEXT NOT NULL,
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-- The JSON NID from the federationsender_queue_pdus_json table.
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json_nid BIGINT NOT NULL
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);
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CREATE UNIQUE INDEX IF NOT EXISTS federationsender_queue_pdus_pdus_json_nid_idx
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ON federationsender_queue_pdus (json_nid, server_name);
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CREATE INDEX IF NOT EXISTS federationsender_queue_pdus_json_nid_idx
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ON federationsender_queue_pdus (json_nid);
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CREATE INDEX IF NOT EXISTS federationsender_queue_pdus_server_name_idx
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ON federationsender_queue_pdus (server_name);
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`
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const insertQueuePDUSQL = "" +
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"INSERT INTO federationsender_queue_pdus (transaction_id, server_name, json_nid)" +
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" VALUES ($1, $2, $3)"
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const deleteQueuePDUsSQL = "" +
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"DELETE FROM federationsender_queue_pdus WHERE server_name = $1 AND json_nid IN ($2)"
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const selectQueueNextTransactionIDSQL = "" +
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"SELECT transaction_id FROM federationsender_queue_pdus" +
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" WHERE server_name = $1" +
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" ORDER BY transaction_id ASC" +
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" LIMIT 1"
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const selectQueuePDUsSQL = "" +
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"SELECT json_nid FROM federationsender_queue_pdus" +
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" WHERE server_name = $1" +
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" LIMIT $2"
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const selectQueuePDUsReferenceJSONCountSQL = "" +
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"SELECT COUNT(*) FROM federationsender_queue_pdus" +
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" WHERE json_nid = $1"
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const selectQueuePDUsCountSQL = "" +
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"SELECT COUNT(*) FROM federationsender_queue_pdus" +
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" WHERE server_name = $1"
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const selectQueuePDUsServerNamesSQL = "" +
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"SELECT DISTINCT server_name FROM federationsender_queue_pdus"
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type queuePDUsStatements struct {
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db *sql.DB
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insertQueuePDUStmt *sql.Stmt
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selectQueueNextTransactionIDStmt *sql.Stmt
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selectQueuePDUsStmt *sql.Stmt
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selectQueueReferenceJSONCountStmt *sql.Stmt
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selectQueuePDUsCountStmt *sql.Stmt
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selectQueueServerNamesStmt *sql.Stmt
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// deleteQueuePDUsStmt *sql.Stmt - prepared at runtime due to variadic
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}
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func NewSQLiteQueuePDUsTable(db *sql.DB) (s *queuePDUsStatements, err error) {
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s = &queuePDUsStatements{
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db: db,
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}
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_, err = db.Exec(queuePDUsSchema)
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if err != nil {
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return
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}
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if s.insertQueuePDUStmt, err = db.Prepare(insertQueuePDUSQL); err != nil {
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return
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}
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//if s.deleteQueuePDUsStmt, err = db.Prepare(deleteQueuePDUsSQL); err != nil {
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// return
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//}
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if s.selectQueueNextTransactionIDStmt, err = db.Prepare(selectQueueNextTransactionIDSQL); err != nil {
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return
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}
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if s.selectQueuePDUsStmt, err = db.Prepare(selectQueuePDUsSQL); err != nil {
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return
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}
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if s.selectQueueReferenceJSONCountStmt, err = db.Prepare(selectQueuePDUsReferenceJSONCountSQL); err != nil {
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return
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}
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if s.selectQueuePDUsCountStmt, err = db.Prepare(selectQueuePDUsCountSQL); err != nil {
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return
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}
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if s.selectQueueServerNamesStmt, err = db.Prepare(selectQueuePDUsServerNamesSQL); err != nil {
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return
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}
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return
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}
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func (s *queuePDUsStatements) InsertQueuePDU(
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ctx context.Context,
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txn *sql.Tx,
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transactionID gomatrixserverlib.TransactionID,
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serverName gomatrixserverlib.ServerName,
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nid int64,
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) error {
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stmt := sqlutil.TxStmt(txn, s.insertQueuePDUStmt)
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_, err := stmt.ExecContext(
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ctx,
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transactionID, // the transaction ID that we initially attempted
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serverName, // destination server name
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nid, // JSON blob NID
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)
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return err
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}
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func (s *queuePDUsStatements) DeleteQueuePDUs(
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ctx context.Context, txn *sql.Tx,
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serverName gomatrixserverlib.ServerName,
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jsonNIDs []int64,
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) error {
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deleteSQL := strings.Replace(deleteQueuePDUsSQL, "($2)", sqlutil.QueryVariadicOffset(len(jsonNIDs), 1), 1)
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deleteStmt, err := txn.Prepare(deleteSQL)
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if err != nil {
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return fmt.Errorf("s.deleteQueueJSON s.db.Prepare: %w", err)
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}
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params := make([]interface{}, len(jsonNIDs)+1)
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params[0] = serverName
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for k, v := range jsonNIDs {
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params[k+1] = v
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}
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stmt := sqlutil.TxStmt(txn, deleteStmt)
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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 *queuePDUsStatements) SelectQueuePDUNextTransactionID(
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ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
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) (gomatrixserverlib.TransactionID, error) {
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var transactionID gomatrixserverlib.TransactionID
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stmt := sqlutil.TxStmt(txn, s.selectQueueNextTransactionIDStmt)
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err := stmt.QueryRowContext(ctx, serverName).Scan(&transactionID)
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if err == sql.ErrNoRows {
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return "", nil
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}
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return transactionID, err
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}
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func (s *queuePDUsStatements) SelectQueuePDUReferenceJSONCount(
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ctx context.Context, txn *sql.Tx, jsonNID int64,
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) (int64, error) {
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var count int64
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stmt := sqlutil.TxStmt(txn, s.selectQueueReferenceJSONCountStmt)
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err := stmt.QueryRowContext(ctx, jsonNID).Scan(&count)
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if err == sql.ErrNoRows {
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return -1, nil
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}
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return count, err
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}
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func (s *queuePDUsStatements) SelectQueuePDUCount(
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ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
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) (int64, error) {
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var count int64
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stmt := sqlutil.TxStmt(txn, s.selectQueuePDUsCountStmt)
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err := stmt.QueryRowContext(ctx, serverName).Scan(&count)
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if err == sql.ErrNoRows {
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// It's acceptable for there to be no rows referencing a given
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// JSON NID but it's not an error condition. Just return as if
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// there's a zero count.
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return 0, nil
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}
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return count, err
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}
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func (s *queuePDUsStatements) SelectQueuePDUs(
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ctx context.Context, txn *sql.Tx,
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serverName gomatrixserverlib.ServerName,
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limit int,
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) ([]int64, error) {
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stmt := sqlutil.TxStmt(txn, s.selectQueuePDUsStmt)
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rows, err := stmt.QueryContext(ctx, serverName, limit)
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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, "queueFromStmt: rows.close() failed")
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var result []int64
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for rows.Next() {
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var nid int64
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if err = rows.Scan(&nid); err != nil {
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return nil, err
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}
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result = append(result, nid)
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}
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return result, rows.Err()
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}
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func (s *queuePDUsStatements) SelectQueuePDUServerNames(
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ctx context.Context, txn *sql.Tx,
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) ([]gomatrixserverlib.ServerName, error) {
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stmt := sqlutil.TxStmt(txn, s.selectQueueServerNamesStmt)
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rows, err := stmt.QueryContext(ctx)
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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, "queueFromStmt: rows.close() failed")
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var result []gomatrixserverlib.ServerName
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for rows.Next() {
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var serverName gomatrixserverlib.ServerName
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if err = rows.Scan(&serverName); err != nil {
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return nil, err
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}
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result = append(result, serverName)
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}
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return result, rows.Err()
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}
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