b6ea1bc67a
* Move current work into single branch * Initial massaging of clientapi etc (not working yet) * Interfaces for accounts/devices databases * Duplicate postgres package for sqlite3 (no changes made to it yet) * Some keydb, accountdb, devicedb, common partition fixes, some more syncapi tweaking * Fix accounts DB, device DB * Update naffka dependency for SQLite * Naffka SQLite * Update naffka to latest master * SQLite support for federationsender * Mostly not-bad support for SQLite in syncapi (although there are problems where lots of events get classed incorrectly as backward extremities, probably because of IN/ANY clauses that are badly supported) * Update Dockerfile -> Go 1.13.7, add build-base (as gcc and friends are needed for SQLite) * Implement GET endpoints for account_data in clientapi * Nuke filtering for now... * Revert "Implement GET endpoints for account_data in clientapi" This reverts commit 4d80dff4583d278620d9b3ed437e9fcd8d4674ee. * Implement GET endpoints for account_data in clientapi (#861) * Implement GET endpoints for account_data in clientapi * Fix accountDB parameter * Remove fmt.Println * Fix insertAccountData SQLite query * Fix accountDB storage interfaces * Add empty push rules into account data on account creation (#862) * Put SaveAccountData into the right function this time * Not sure if roomserver is better or worse now * sqlite work * Allow empty last sent ID for the first event * sqlite: room creation works * Support sending messages * Nuke fmt.println * Move QueryVariadic etc into common, other device fixes * Fix some linter issues * Fix bugs * Fix some linting errors * Fix errcheck lint errors * Make naffka use postgres as fallback, fix couple of compile errors * What on earth happened to the /rooms/{roomID}/send/{eventType} routing Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
92 lines
3.2 KiB
Go
92 lines
3.2 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"
|
|
|
|
"github.com/matrix-org/dendrite/common"
|
|
"github.com/matrix-org/dendrite/roomserver/types"
|
|
)
|
|
|
|
const previousEventSchema = `
|
|
CREATE TABLE IF NOT EXISTS roomserver_previous_events (
|
|
previous_event_id TEXT NOT NULL,
|
|
previous_reference_sha256 BLOB NOT NULL,
|
|
event_nids TEXT NOT NULL,
|
|
UNIQUE (previous_event_id, previous_reference_sha256)
|
|
);
|
|
`
|
|
|
|
// Insert an entry into the previous_events table.
|
|
// If there is already an entry indicating that an event references that previous event then
|
|
// add the event NID to the list to indicate that this event references that previous event as well.
|
|
// This should only be modified while holding a "FOR UPDATE" lock on the row in the rooms table for this room.
|
|
// The lock is necessary to avoid data races when checking whether an event is already referenced by another event.
|
|
const insertPreviousEventSQL = `
|
|
INSERT OR REPLACE INTO roomserver_previous_events
|
|
(previous_event_id, previous_reference_sha256, event_nids)
|
|
VALUES ($1, $2, $3)
|
|
`
|
|
|
|
// Check if the event is referenced by another event in the table.
|
|
// This should only be done while holding a "FOR UPDATE" lock on the row in the rooms table for this room.
|
|
const selectPreviousEventExistsSQL = `
|
|
SELECT 1 FROM roomserver_previous_events
|
|
WHERE previous_event_id = $1 AND previous_reference_sha256 = $2
|
|
`
|
|
|
|
type previousEventStatements struct {
|
|
insertPreviousEventStmt *sql.Stmt
|
|
selectPreviousEventExistsStmt *sql.Stmt
|
|
}
|
|
|
|
func (s *previousEventStatements) prepare(db *sql.DB) (err error) {
|
|
_, err = db.Exec(previousEventSchema)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
return statementList{
|
|
{&s.insertPreviousEventStmt, insertPreviousEventSQL},
|
|
{&s.selectPreviousEventExistsStmt, selectPreviousEventExistsSQL},
|
|
}.prepare(db)
|
|
}
|
|
|
|
func (s *previousEventStatements) insertPreviousEvent(
|
|
ctx context.Context,
|
|
txn *sql.Tx,
|
|
previousEventID string,
|
|
previousEventReferenceSHA256 []byte,
|
|
eventNID types.EventNID,
|
|
) error {
|
|
stmt := common.TxStmt(txn, s.insertPreviousEventStmt)
|
|
_, err := stmt.ExecContext(
|
|
ctx, previousEventID, previousEventReferenceSHA256, int64(eventNID),
|
|
)
|
|
return err
|
|
}
|
|
|
|
// Check if the event reference exists
|
|
// Returns sql.ErrNoRows if the event reference doesn't exist.
|
|
func (s *previousEventStatements) selectPreviousEventExists(
|
|
ctx context.Context, txn *sql.Tx, eventID string, eventReferenceSHA256 []byte,
|
|
) error {
|
|
var ok int64
|
|
stmt := common.TxStmt(txn, s.selectPreviousEventExistsStmt)
|
|
return stmt.QueryRowContext(ctx, eventID, eventReferenceSHA256).Scan(&ok)
|
|
}
|