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dendrite/userapi/storage/postgres/cross_signing_keys_table.go

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// Copyright 2021 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 postgres
import (
"context"
"database/sql"
"fmt"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/userapi/storage/tables"
"github.com/matrix-org/dendrite/userapi/types"
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"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/gomatrixserverlib/fclient"
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)
var crossSigningKeysSchema = `
CREATE TABLE IF NOT EXISTS keyserver_cross_signing_keys (
user_id TEXT NOT NULL,
key_type SMALLINT NOT NULL,
key_data TEXT NOT NULL,
PRIMARY KEY (user_id, key_type)
);
`
const selectCrossSigningKeysForUserSQL = "" +
"SELECT key_type, key_data FROM keyserver_cross_signing_keys" +
" WHERE user_id = $1"
const upsertCrossSigningKeysForUserSQL = "" +
"INSERT INTO keyserver_cross_signing_keys (user_id, key_type, key_data)" +
" VALUES($1, $2, $3)" +
" ON CONFLICT (user_id, key_type) DO UPDATE SET key_data = $3"
type crossSigningKeysStatements struct {
db *sql.DB
selectCrossSigningKeysForUserStmt *sql.Stmt
upsertCrossSigningKeysForUserStmt *sql.Stmt
}
func NewPostgresCrossSigningKeysTable(db *sql.DB) (tables.CrossSigningKeys, error) {
s := &crossSigningKeysStatements{
db: db,
}
_, err := db.Exec(crossSigningKeysSchema)
if err != nil {
return nil, err
}
return s, sqlutil.StatementList{
{&s.selectCrossSigningKeysForUserStmt, selectCrossSigningKeysForUserSQL},
{&s.upsertCrossSigningKeysForUserStmt, upsertCrossSigningKeysForUserSQL},
}.Prepare(db)
}
func (s *crossSigningKeysStatements) SelectCrossSigningKeysForUser(
ctx context.Context, txn *sql.Tx, userID string,
) (r types.CrossSigningKeyMap, err error) {
rows, err := sqlutil.TxStmt(txn, s.selectCrossSigningKeysForUserStmt).QueryContext(ctx, userID)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "selectCrossSigningKeysForUserStmt: rows.close() failed")
r = types.CrossSigningKeyMap{}
for rows.Next() {
var keyTypeInt int16
var keyData gomatrixserverlib.Base64Bytes
if err := rows.Scan(&keyTypeInt, &keyData); err != nil {
return nil, err
}
keyType, ok := types.KeyTypeIntToPurpose[keyTypeInt]
if !ok {
return nil, fmt.Errorf("unknown key purpose int %d", keyTypeInt)
}
r[keyType] = keyData
}
return
}
func (s *crossSigningKeysStatements) UpsertCrossSigningKeysForUser(
ctx context.Context, txn *sql.Tx, userID string, keyType fclient.CrossSigningKeyPurpose, keyData gomatrixserverlib.Base64Bytes,
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) error {
keyTypeInt, ok := types.KeyTypePurposeToInt[keyType]
if !ok {
return fmt.Errorf("unknown key purpose %q", keyType)
}
if _, err := sqlutil.TxStmt(txn, s.upsertCrossSigningKeysForUserStmt).ExecContext(ctx, userID, keyTypeInt, keyData); err != nil {
return fmt.Errorf("s.upsertCrossSigningKeysForUserStmt: %w", err)
}
return nil
}