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dendrite/federationapi/storage/postgres/queue_edus_table.go
Neil Alexander ec716793eb
Merge federationapi, federationsender, signingkeyserver components (#2055)
* Initial federation sender -> federation API refactoring

* Move base into own package, avoids import cycle

* Fix build errors

* Fix tests

* Add signing key server tables

* Try to fold signing key server into federation API

* Fix dendritejs builds

* Update embedded interfaces

* Fix panic, fix lint error

* Update configs, docker

* Rename some things

* Reuse same keyring on the implementing side

* Fix federation tests, `NewBaseDendrite` can accept freeform options

* Fix build

* Update create_db, configs

* Name tables back

* Don't rename federationsender consumer for now
2021-11-24 10:45:23 +00:00

198 lines
5.7 KiB
Go

// Copyright 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 postgres
import (
"context"
"database/sql"
"github.com/lib/pq"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/gomatrixserverlib"
)
const queueEDUsSchema = `
CREATE TABLE IF NOT EXISTS federationsender_queue_edus (
-- The type of the event (informational).
edu_type TEXT NOT NULL,
-- The domain part of the user ID the EDU event is for.
server_name TEXT NOT NULL,
-- The JSON NID from the federationsender_queue_edus_json table.
json_nid BIGINT NOT NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS federationsender_queue_edus_json_nid_idx
ON federationsender_queue_edus (json_nid, server_name);
`
const insertQueueEDUSQL = "" +
"INSERT INTO federationsender_queue_edus (edu_type, server_name, json_nid)" +
" VALUES ($1, $2, $3)"
const deleteQueueEDUSQL = "" +
"DELETE FROM federationsender_queue_edus WHERE server_name = $1 AND json_nid = ANY($2)"
const selectQueueEDUSQL = "" +
"SELECT json_nid FROM federationsender_queue_edus" +
" WHERE server_name = $1" +
" LIMIT $2"
const selectQueueEDUReferenceJSONCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_edus" +
" WHERE json_nid = $1"
const selectQueueEDUCountSQL = "" +
"SELECT COUNT(*) FROM federationsender_queue_edus" +
" WHERE server_name = $1"
const selectQueueServerNamesSQL = "" +
"SELECT DISTINCT server_name FROM federationsender_queue_edus"
type queueEDUsStatements struct {
db *sql.DB
insertQueueEDUStmt *sql.Stmt
deleteQueueEDUStmt *sql.Stmt
selectQueueEDUStmt *sql.Stmt
selectQueueEDUReferenceJSONCountStmt *sql.Stmt
selectQueueEDUCountStmt *sql.Stmt
selectQueueEDUServerNamesStmt *sql.Stmt
}
func NewPostgresQueueEDUsTable(db *sql.DB) (s *queueEDUsStatements, err error) {
s = &queueEDUsStatements{
db: db,
}
_, err = s.db.Exec(queueEDUsSchema)
if err != nil {
return
}
if s.insertQueueEDUStmt, err = s.db.Prepare(insertQueueEDUSQL); err != nil {
return
}
if s.deleteQueueEDUStmt, err = s.db.Prepare(deleteQueueEDUSQL); err != nil {
return
}
if s.selectQueueEDUStmt, err = s.db.Prepare(selectQueueEDUSQL); err != nil {
return
}
if s.selectQueueEDUReferenceJSONCountStmt, err = s.db.Prepare(selectQueueEDUReferenceJSONCountSQL); err != nil {
return
}
if s.selectQueueEDUCountStmt, err = s.db.Prepare(selectQueueEDUCountSQL); err != nil {
return
}
if s.selectQueueEDUServerNamesStmt, err = s.db.Prepare(selectQueueServerNamesSQL); err != nil {
return
}
return
}
func (s *queueEDUsStatements) InsertQueueEDU(
ctx context.Context,
txn *sql.Tx,
eduType string,
serverName gomatrixserverlib.ServerName,
nid int64,
) error {
stmt := sqlutil.TxStmt(txn, s.insertQueueEDUStmt)
_, err := stmt.ExecContext(
ctx,
eduType, // the EDU type
serverName, // destination server name
nid, // JSON blob NID
)
return err
}
func (s *queueEDUsStatements) DeleteQueueEDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
jsonNIDs []int64,
) error {
stmt := sqlutil.TxStmt(txn, s.deleteQueueEDUStmt)
_, err := stmt.ExecContext(ctx, serverName, pq.Int64Array(jsonNIDs))
return err
}
func (s *queueEDUsStatements) SelectQueueEDUs(
ctx context.Context, txn *sql.Tx,
serverName gomatrixserverlib.ServerName,
limit int,
) ([]int64, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUStmt)
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, nil
}
func (s *queueEDUsStatements) SelectQueueEDUReferenceJSONCount(
ctx context.Context, txn *sql.Tx, jsonNID int64,
) (int64, error) {
var count int64
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUReferenceJSONCountStmt)
err := stmt.QueryRowContext(ctx, jsonNID).Scan(&count)
if err == sql.ErrNoRows {
return -1, nil
}
return count, err
}
func (s *queueEDUsStatements) SelectQueueEDUCount(
ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName,
) (int64, error) {
var count int64
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUCountStmt)
err := stmt.QueryRowContext(ctx, serverName).Scan(&count)
if err == sql.ErrNoRows {
// It's acceptable for there to be no rows referencing a given
// JSON NID but it's not an error condition. Just return as if
// there's a zero count.
return 0, nil
}
return count, err
}
func (s *queueEDUsStatements) SelectQueueEDUServerNames(
ctx context.Context, txn *sql.Tx,
) ([]gomatrixserverlib.ServerName, error) {
stmt := sqlutil.TxStmt(txn, s.selectQueueEDUServerNamesStmt)
rows, err := stmt.QueryContext(ctx)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "queueFromStmt: rows.close() failed")
var result []gomatrixserverlib.ServerName
for rows.Next() {
var serverName gomatrixserverlib.ServerName
if err = rows.Scan(&serverName); err != nil {
return nil, err
}
result = append(result, serverName)
}
return result, rows.Err()
}