mirror of
https://github.com/1f349/dendrite.git
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216 lines
6.7 KiB
Go
216 lines
6.7 KiB
Go
// Copyright 2020 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sqlite3
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import (
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"context"
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"database/sql"
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"encoding/json"
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"time"
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"github.com/matrix-org/dendrite/internal"
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"github.com/matrix-org/dendrite/internal/sqlutil"
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"github.com/matrix-org/dendrite/keyserver/api"
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"github.com/matrix-org/dendrite/keyserver/storage/tables"
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)
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var oneTimeKeysSchema = `
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-- Stores one-time public keys for users
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CREATE TABLE IF NOT EXISTS keyserver_one_time_keys (
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user_id TEXT NOT NULL,
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device_id TEXT NOT NULL,
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key_id TEXT NOT NULL,
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algorithm TEXT NOT NULL,
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ts_added_secs BIGINT NOT NULL,
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key_json TEXT NOT NULL,
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-- Clobber based on 4-uple of user/device/key/algorithm.
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UNIQUE (user_id, device_id, key_id, algorithm)
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);
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`
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const upsertKeysSQL = "" +
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"INSERT INTO keyserver_one_time_keys (user_id, device_id, key_id, algorithm, ts_added_secs, key_json)" +
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" VALUES ($1, $2, $3, $4, $5, $6)" +
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" ON CONFLICT (user_id, device_id, key_id, algorithm)" +
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" DO UPDATE SET key_json = $6"
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const selectKeysSQL = "" +
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"SELECT key_id, algorithm, key_json FROM keyserver_one_time_keys WHERE user_id=$1 AND device_id=$2"
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const selectKeysCountSQL = "" +
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"SELECT algorithm, COUNT(key_id) FROM keyserver_one_time_keys WHERE user_id=$1 AND device_id=$2 GROUP BY algorithm"
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const deleteOneTimeKeySQL = "" +
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"DELETE FROM keyserver_one_time_keys WHERE user_id = $1 AND device_id = $2 AND algorithm = $3 AND key_id = $4"
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const selectKeyByAlgorithmSQL = "" +
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"SELECT key_id, key_json FROM keyserver_one_time_keys WHERE user_id = $1 AND device_id = $2 AND algorithm = $3 LIMIT 1"
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const deleteOneTimeKeysSQL = "" +
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"DELETE FROM keyserver_one_time_keys WHERE user_id = $1 AND device_id = $2"
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type oneTimeKeysStatements struct {
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db *sql.DB
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upsertKeysStmt *sql.Stmt
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selectKeysStmt *sql.Stmt
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selectKeysCountStmt *sql.Stmt
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selectKeyByAlgorithmStmt *sql.Stmt
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deleteOneTimeKeyStmt *sql.Stmt
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deleteOneTimeKeysStmt *sql.Stmt
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}
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func NewSqliteOneTimeKeysTable(db *sql.DB) (tables.OneTimeKeys, error) {
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s := &oneTimeKeysStatements{
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db: db,
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}
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_, err := db.Exec(oneTimeKeysSchema)
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if err != nil {
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return nil, err
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}
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if s.upsertKeysStmt, err = db.Prepare(upsertKeysSQL); err != nil {
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return nil, err
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}
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if s.selectKeysStmt, err = db.Prepare(selectKeysSQL); err != nil {
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return nil, err
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}
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if s.selectKeysCountStmt, err = db.Prepare(selectKeysCountSQL); err != nil {
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return nil, err
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}
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if s.selectKeyByAlgorithmStmt, err = db.Prepare(selectKeyByAlgorithmSQL); err != nil {
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return nil, err
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}
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if s.deleteOneTimeKeyStmt, err = db.Prepare(deleteOneTimeKeySQL); err != nil {
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return nil, err
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}
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if s.deleteOneTimeKeysStmt, err = db.Prepare(deleteOneTimeKeysSQL); err != nil {
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return nil, err
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}
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return s, nil
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}
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func (s *oneTimeKeysStatements) SelectOneTimeKeys(ctx context.Context, userID, deviceID string, keyIDsWithAlgorithms []string) (map[string]json.RawMessage, error) {
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rows, err := s.selectKeysStmt.QueryContext(ctx, userID, deviceID)
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if err != nil {
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return nil, err
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}
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defer internal.CloseAndLogIfError(ctx, rows, "selectKeysStmt: rows.close() failed")
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wantSet := make(map[string]bool, len(keyIDsWithAlgorithms))
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for _, ka := range keyIDsWithAlgorithms {
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wantSet[ka] = true
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}
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result := make(map[string]json.RawMessage)
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for rows.Next() {
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var keyID string
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var algorithm string
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var keyJSONStr string
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if err := rows.Scan(&keyID, &algorithm, &keyJSONStr); err != nil {
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return nil, err
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}
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keyIDWithAlgo := algorithm + ":" + keyID
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if wantSet[keyIDWithAlgo] {
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result[keyIDWithAlgo] = json.RawMessage(keyJSONStr)
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}
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}
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return result, rows.Err()
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}
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func (s *oneTimeKeysStatements) CountOneTimeKeys(ctx context.Context, userID, deviceID string) (*api.OneTimeKeysCount, error) {
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counts := &api.OneTimeKeysCount{
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DeviceID: deviceID,
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UserID: userID,
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KeyCount: make(map[string]int),
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}
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rows, err := s.selectKeysCountStmt.QueryContext(ctx, userID, deviceID)
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if err != nil {
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return nil, err
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}
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defer internal.CloseAndLogIfError(ctx, rows, "selectKeysCountStmt: rows.close() failed")
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for rows.Next() {
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var algorithm string
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var count int
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if err = rows.Scan(&algorithm, &count); err != nil {
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return nil, err
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}
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counts.KeyCount[algorithm] = count
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}
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return counts, nil
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}
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func (s *oneTimeKeysStatements) InsertOneTimeKeys(
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ctx context.Context, txn *sql.Tx, keys api.OneTimeKeys,
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) (*api.OneTimeKeysCount, error) {
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now := time.Now().Unix()
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counts := &api.OneTimeKeysCount{
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DeviceID: keys.DeviceID,
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UserID: keys.UserID,
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KeyCount: make(map[string]int),
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}
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for keyIDWithAlgo, keyJSON := range keys.KeyJSON {
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algo, keyID := keys.Split(keyIDWithAlgo)
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_, err := sqlutil.TxStmt(txn, s.upsertKeysStmt).ExecContext(
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ctx, keys.UserID, keys.DeviceID, keyID, algo, now, string(keyJSON),
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)
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if err != nil {
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return nil, err
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}
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}
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rows, err := sqlutil.TxStmt(txn, s.selectKeysCountStmt).QueryContext(ctx, keys.UserID, keys.DeviceID)
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if err != nil {
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return nil, err
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}
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defer internal.CloseAndLogIfError(ctx, rows, "selectKeysCountStmt: rows.close() failed")
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for rows.Next() {
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var algorithm string
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var count int
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if err = rows.Scan(&algorithm, &count); err != nil {
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return nil, err
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}
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counts.KeyCount[algorithm] = count
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}
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return counts, rows.Err()
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}
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func (s *oneTimeKeysStatements) SelectAndDeleteOneTimeKey(
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ctx context.Context, txn *sql.Tx, userID, deviceID, algorithm string,
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) (map[string]json.RawMessage, error) {
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var keyID string
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var keyJSON string
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err := sqlutil.TxStmtContext(ctx, txn, s.selectKeyByAlgorithmStmt).QueryRowContext(ctx, userID, deviceID, algorithm).Scan(&keyID, &keyJSON)
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if err != nil {
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if err == sql.ErrNoRows {
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return nil, nil
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}
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return nil, err
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}
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_, err = sqlutil.TxStmtContext(ctx, txn, s.deleteOneTimeKeyStmt).ExecContext(ctx, userID, deviceID, algorithm, keyID)
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if err != nil {
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return nil, err
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}
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if keyJSON == "" {
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return nil, nil
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}
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return map[string]json.RawMessage{
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algorithm + ":" + keyID: json.RawMessage(keyJSON),
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}, err
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}
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func (s *oneTimeKeysStatements) DeleteOneTimeKeys(ctx context.Context, txn *sql.Tx, userID, deviceID string) error {
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_, err := sqlutil.TxStmt(txn, s.deleteOneTimeKeysStmt).ExecContext(ctx, userID, deviceID)
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return err
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}
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