mirror of
https://github.com/matrix-org/dendrite.git
synced 2024-11-27 00:31:55 -06:00
71 lines
2.5 KiB
Go
71 lines
2.5 KiB
Go
|
// Copyright 2017 Vector Creations Ltd
|
||
|
|
//
|
||
|
|
// 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 keydb
|
||
|
|
|
||
|
|
import (
|
||
|
|
"database/sql"
|
||
|
|
"github.com/matrix-org/gomatrixserverlib"
|
||
|
|
)
|
||
|
|
|
||
|
|
// A Database implements gomatrixserverlib.KeyDatabase and is used to store
|
||
|
|
// the public keys for other matrix servers.
|
||
|
|
type Database struct {
|
||
|
|
statements serverKeyStatements
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewDatabase prepares a new key database.
|
||
|
|
// It creates the necessary tables if they don't already exist.
|
||
|
|
// It prepares all the SQL statements that it will use.
|
||
|
|
// Returns an error if there was a problem talking to the database.
|
||
|
|
func NewDatabase(dataSourceName string) (*Database, error) {
|
||
|
|
db, err := sql.Open("postgres", dataSourceName)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
d := &Database{}
|
||
|
|
d.statements.prepare(db)
|
||
|
|
return d, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// FetchKeys implements gomatrixserverlib.KeyDatabase
|
||
|
|
func (d *Database) FetchKeys(
|
||
|
|
requests map[gomatrixserverlib.PublicKeyRequest]gomatrixserverlib.Timestamp,
|
||
|
|
) (map[gomatrixserverlib.PublicKeyRequest]gomatrixserverlib.ServerKeys, error) {
|
||
|
|
return d.statements.bulkSelectServerKeys(requests)
|
||
|
|
}
|
||
|
|
|
||
|
|
// StoreKeys implements gomatrixserverlib.KeyDatabase
|
||
|
|
func (d *Database) StoreKeys(
|
||
|
|
keyMap map[gomatrixserverlib.PublicKeyRequest]gomatrixserverlib.ServerKeys,
|
||
|
|
) error {
|
||
|
|
// TODO: Inserting all the keys within a single transaction may
|
||
|
|
// be more efficient since the transaction overhead can be quite
|
||
|
|
// high for a single insert statement.
|
||
|
|
var lastErr error
|
||
|
|
for request, keys := range keyMap {
|
||
|
|
if err := d.statements.upsertServerKeys(request, keys); err != nil {
|
||
|
|
// Rather than returning immediately on error we try to insert the
|
||
|
|
// remaining keys.
|
||
|
|
// Since we are inserting the keys outside of a transaction it is
|
||
|
|
// possible for some of the inserts to succeed even though some
|
||
|
|
// of the inserts have failed.
|
||
|
|
// Ensuring that we always insert all the keys we can means that
|
||
|
|
// this behaviour won't depend on the iteration order of the map.
|
||
|
|
lastErr = err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return lastErr
|
||
|
|
}
|