mirror of
https://github.com/matrix-org/dendrite
synced 2024-09-11 05:29:18 +02:00
* Offset updates take place using TransactionWriter * Refactor TransactionWriter in current state server * Refactor TransactionWriter in federation sender * Refactor TransactionWriter in key server * Refactor TransactionWriter in media API * Refactor TransactionWriter in server key API * Refactor TransactionWriter in sync API * Refactor TransactionWriter in user API * Fix deadlocking Sync API tests * Un-deadlock device database * Fix appservice API * Rename TransactionWriters to Writers * Move writers up a layer in sync API * Document sqlutil.Writer interface * Add note to Writer documentation
165 lines
5.5 KiB
Go
165 lines
5.5 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 shared
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"encoding/json"
|
|
"fmt"
|
|
|
|
"github.com/matrix-org/dendrite/federationsender/storage/tables"
|
|
"github.com/matrix-org/dendrite/federationsender/types"
|
|
"github.com/matrix-org/dendrite/internal/sqlutil"
|
|
"github.com/matrix-org/gomatrixserverlib"
|
|
)
|
|
|
|
type Database struct {
|
|
DB *sql.DB
|
|
Writer sqlutil.Writer
|
|
FederationSenderQueuePDUs tables.FederationSenderQueuePDUs
|
|
FederationSenderQueueEDUs tables.FederationSenderQueueEDUs
|
|
FederationSenderQueueJSON tables.FederationSenderQueueJSON
|
|
FederationSenderJoinedHosts tables.FederationSenderJoinedHosts
|
|
FederationSenderRooms tables.FederationSenderRooms
|
|
FederationSenderBlacklist tables.FederationSenderBlacklist
|
|
}
|
|
|
|
// An Receipt contains the NIDs of a call to GetNextTransactionPDUs/EDUs.
|
|
// We don't actually export the NIDs but we need the caller to be able
|
|
// to pass them back so that we can clean up if the transaction sends
|
|
// successfully.
|
|
type Receipt struct {
|
|
nids []int64
|
|
}
|
|
|
|
func (e *Receipt) Empty() bool {
|
|
return len(e.nids) == 0
|
|
}
|
|
|
|
func (e *Receipt) String() string {
|
|
j, _ := json.Marshal(e.nids)
|
|
return string(j)
|
|
}
|
|
|
|
// UpdateRoom updates the joined hosts for a room and returns what the joined
|
|
// hosts were before the update, or nil if this was a duplicate message.
|
|
// This is called when we receive a message from kafka, so we pass in
|
|
// oldEventID and newEventID to check that we haven't missed any messages or
|
|
// this isn't a duplicate message.
|
|
func (d *Database) UpdateRoom(
|
|
ctx context.Context,
|
|
roomID, oldEventID, newEventID string,
|
|
addHosts []types.JoinedHost,
|
|
removeHosts []string,
|
|
) (joinedHosts []types.JoinedHost, err error) {
|
|
err = d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
|
|
err = d.FederationSenderRooms.InsertRoom(ctx, txn, roomID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
lastSentEventID, err := d.FederationSenderRooms.SelectRoomForUpdate(ctx, txn, roomID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if lastSentEventID == newEventID {
|
|
// We've handled this message before, so let's just ignore it.
|
|
// We can only get a duplicate for the last message we processed,
|
|
// so its enough just to compare the newEventID with lastSentEventID
|
|
return nil
|
|
}
|
|
|
|
if lastSentEventID != "" && lastSentEventID != oldEventID {
|
|
return types.EventIDMismatchError{
|
|
DatabaseID: lastSentEventID, RoomServerID: oldEventID,
|
|
}
|
|
}
|
|
|
|
joinedHosts, err = d.FederationSenderJoinedHosts.SelectJoinedHostsWithTx(ctx, txn, roomID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, add := range addHosts {
|
|
err = d.FederationSenderJoinedHosts.InsertJoinedHosts(ctx, txn, roomID, add.MemberEventID, add.ServerName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if err = d.FederationSenderJoinedHosts.DeleteJoinedHosts(ctx, txn, removeHosts); err != nil {
|
|
return err
|
|
}
|
|
return d.FederationSenderRooms.UpdateRoom(ctx, txn, roomID, newEventID)
|
|
})
|
|
return
|
|
}
|
|
|
|
// GetJoinedHosts returns the currently joined hosts for room,
|
|
// as known to federationserver.
|
|
// Returns an error if something goes wrong.
|
|
func (d *Database) GetJoinedHosts(
|
|
ctx context.Context, roomID string,
|
|
) ([]types.JoinedHost, error) {
|
|
return d.FederationSenderJoinedHosts.SelectJoinedHosts(ctx, roomID)
|
|
}
|
|
|
|
// GetAllJoinedHosts returns the currently joined hosts for
|
|
// all rooms known to the federation sender.
|
|
// Returns an error if something goes wrong.
|
|
func (d *Database) GetAllJoinedHosts(ctx context.Context) ([]gomatrixserverlib.ServerName, error) {
|
|
return d.FederationSenderJoinedHosts.SelectAllJoinedHosts(ctx)
|
|
}
|
|
|
|
func (d *Database) GetJoinedHostsForRooms(ctx context.Context, roomIDs []string) ([]gomatrixserverlib.ServerName, error) {
|
|
return d.FederationSenderJoinedHosts.SelectJoinedHostsForRooms(ctx, roomIDs)
|
|
}
|
|
|
|
// StoreJSON adds a JSON blob into the queue JSON table and returns
|
|
// a NID. The NID will then be used when inserting the per-destination
|
|
// metadata entries.
|
|
func (d *Database) StoreJSON(
|
|
ctx context.Context, js string,
|
|
) (*Receipt, error) {
|
|
var nid int64
|
|
var err error
|
|
_ = d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
|
|
nid, err = d.FederationSenderQueueJSON.InsertQueueJSON(ctx, txn, js)
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("d.insertQueueJSON: %w", err)
|
|
}
|
|
return &Receipt{
|
|
nids: []int64{nid},
|
|
}, nil
|
|
}
|
|
|
|
func (d *Database) AddServerToBlacklist(serverName gomatrixserverlib.ServerName) error {
|
|
return d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
|
|
return d.FederationSenderBlacklist.InsertBlacklist(context.TODO(), txn, serverName)
|
|
})
|
|
}
|
|
|
|
func (d *Database) RemoveServerFromBlacklist(serverName gomatrixserverlib.ServerName) error {
|
|
return d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
|
|
return d.FederationSenderBlacklist.DeleteBlacklist(context.TODO(), txn, serverName)
|
|
})
|
|
}
|
|
|
|
func (d *Database) IsServerBlacklisted(serverName gomatrixserverlib.ServerName) (bool, error) {
|
|
return d.FederationSenderBlacklist.SelectBlacklist(context.TODO(), nil, serverName)
|
|
}
|