dendrite/relayapi/storage/shared/storage.go
kegsay 72285b2659
refactor: update GMSL (#3058)
Sister PR to https://github.com/matrix-org/gomatrixserverlib/pull/364

Read this commit by commit to avoid going insane.
2023-04-19 15:50:33 +01:00

172 lines
4.9 KiB
Go

// Copyright 2022 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/federationapi/storage/shared/receipt"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/relayapi/storage/tables"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/gomatrixserverlib/spec"
)
type Database struct {
DB *sql.DB
IsLocalServerName func(spec.ServerName) bool
Cache caching.FederationCache
Writer sqlutil.Writer
RelayQueue tables.RelayQueue
RelayQueueJSON tables.RelayQueueJSON
}
func (d *Database) StoreTransaction(
ctx context.Context,
transaction gomatrixserverlib.Transaction,
) (*receipt.Receipt, error) {
var err error
jsonTransaction, err := json.Marshal(transaction)
if err != nil {
return nil, fmt.Errorf("failed to marshal: %w", err)
}
var nid int64
_ = d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
nid, err = d.RelayQueueJSON.InsertQueueJSON(ctx, txn, string(jsonTransaction))
return err
})
if err != nil {
return nil, fmt.Errorf("d.insertQueueJSON: %w", err)
}
newReceipt := receipt.NewReceipt(nid)
return &newReceipt, nil
}
func (d *Database) AssociateTransactionWithDestinations(
ctx context.Context,
destinations map[spec.UserID]struct{},
transactionID gomatrixserverlib.TransactionID,
dbReceipt *receipt.Receipt,
) error {
err := d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
var lastErr error
for destination := range destinations {
destination := destination
err := d.RelayQueue.InsertQueueEntry(
ctx,
txn,
transactionID,
destination.Domain(),
dbReceipt.GetNID(),
)
if err != nil {
lastErr = fmt.Errorf("d.insertQueueEntry: %w", err)
}
}
return lastErr
})
return err
}
func (d *Database) CleanTransactions(
ctx context.Context,
userID spec.UserID,
receipts []*receipt.Receipt,
) error {
nids := make([]int64, len(receipts))
for i, dbReceipt := range receipts {
nids[i] = dbReceipt.GetNID()
}
err := d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
deleteEntryErr := d.RelayQueue.DeleteQueueEntries(ctx, txn, userID.Domain(), nids)
// TODO : If there are still queue entries for any of these nids for other destinations
// then we shouldn't delete the json entries.
// But this can't happen with the current api design.
// There will only ever be one server entry for each nid since each call to send_relay
// only accepts a single server name and inside there we create a new json entry.
// So for multiple destinations we would call send_relay multiple times and have multiple
// json entries of the same transaction.
//
// TLDR; this works as expected right now but can easily be optimised in the future.
deleteJSONErr := d.RelayQueueJSON.DeleteQueueJSON(ctx, txn, nids)
if deleteEntryErr != nil {
return fmt.Errorf("d.deleteQueueEntries: %w", deleteEntryErr)
}
if deleteJSONErr != nil {
return fmt.Errorf("d.deleteQueueJSON: %w", deleteJSONErr)
}
return nil
})
return err
}
func (d *Database) GetTransaction(
ctx context.Context,
userID spec.UserID,
) (*gomatrixserverlib.Transaction, *receipt.Receipt, error) {
entriesRequested := 1
nids, err := d.RelayQueue.SelectQueueEntries(ctx, nil, userID.Domain(), entriesRequested)
if err != nil {
return nil, nil, fmt.Errorf("d.SelectQueueEntries: %w", err)
}
if len(nids) == 0 {
return nil, nil, nil
}
firstNID := nids[0]
txns := map[int64][]byte{}
err = d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
txns, err = d.RelayQueueJSON.SelectQueueJSON(ctx, txn, nids)
return err
})
if err != nil {
return nil, nil, fmt.Errorf("d.SelectQueueJSON: %w", err)
}
transaction := &gomatrixserverlib.Transaction{}
if _, ok := txns[firstNID]; !ok {
return nil, nil, fmt.Errorf("Failed retrieving json blob for transaction: %d", firstNID)
}
err = json.Unmarshal(txns[firstNID], transaction)
if err != nil {
return nil, nil, fmt.Errorf("Unmarshal transaction: %w", err)
}
newReceipt := receipt.NewReceipt(firstNID)
return transaction, &newReceipt, nil
}
func (d *Database) GetTransactionCount(
ctx context.Context,
userID spec.UserID,
) (int64, error) {
count, err := d.RelayQueue.SelectQueueEntryCount(ctx, nil, userID.Domain())
if err != nil {
return 0, fmt.Errorf("d.SelectQueueEntryCount: %w", err)
}
return count, nil
}