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Use TransactionWriter in SQLite keyserver (#1239)

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* Use TransactionWriter in SQLite keyserver

* Fix keyserver storage tests
This commit is contained in:
Neil Alexander 2020-08-05 11:01:37 +01:00 • committed by GitHub
parent 22f028e141
commit 15dc1f4d03
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4 changed files with 65 additions and 38 deletions
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23
keyserver/storage/sqlite3/one_time_keys_table.go
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@ -60,6 +60,7 @@ const selectKeyByAlgorithmSQL = "" +
type oneTimeKeysStatements struct {
db *sql.DB
writer *sqlutil.TransactionWriter
upsertKeysStmt *sql.Stmt
selectKeysStmt *sql.Stmt
selectKeysCountStmt *sql.Stmt
@ -69,7 +70,8 @@ type oneTimeKeysStatements struct {
func NewSqliteOneTimeKeysTable(db *sql.DB) (tables.OneTimeKeys, error) {
s := &oneTimeKeysStatements{
db: db,
db: db,
writer: sqlutil.NewTransactionWriter(),
}
_, err := db.Exec(oneTimeKeysSchema)
if err != nil {
@ -150,7 +152,7 @@ func (s *oneTimeKeysStatements) InsertOneTimeKeys(ctx context.Context, keys api.
UserID: keys.UserID,
KeyCount: make(map[string]int),
}
return counts, sqlutil.WithTransaction(s.db, func(txn *sql.Tx) error {
return counts, s.writer.Do(s.db, nil, func(txn *sql.Tx) error {
for keyIDWithAlgo, keyJSON := range keys.KeyJSON {
algo, keyID := keys.Split(keyIDWithAlgo)
_, err := txn.Stmt(s.upsertKeysStmt).ExecContext(
@ -183,14 +185,17 @@ func (s *oneTimeKeysStatements) SelectAndDeleteOneTimeKey(
) (map[string]json.RawMessage, error) {
var keyID string
var keyJSON string
err := txn.StmtContext(ctx, s.selectKeyByAlgorithmStmt).QueryRowContext(ctx, userID, deviceID, algorithm).Scan(&keyID, &keyJSON)
if err != nil {
if err == sql.ErrNoRows {
return nil, nil
err := s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
err := txn.StmtContext(ctx, s.selectKeyByAlgorithmStmt).QueryRowContext(ctx, userID, deviceID, algorithm).Scan(&keyID, &keyJSON)
if err != nil {
if err == sql.ErrNoRows {
return nil
}
return err
}
return nil, err
}
_, err = txn.StmtContext(ctx, s.deleteOneTimeKeyStmt).ExecContext(ctx, userID, deviceID, algorithm, keyID)
_, err = txn.StmtContext(ctx, s.deleteOneTimeKeyStmt).ExecContext(ctx, userID, deviceID, algorithm, keyID)
return err
})
return map[string]json.RawMessage{
algorithm + ":" + keyID: json.RawMessage(keyJSON),
}, err