| // Copyright 2024 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_HISTORY_EMBEDDINGS_PASSAGES_UTIL_H_ |
| #define COMPONENTS_HISTORY_EMBEDDINGS_PASSAGES_UTIL_H_ |
| |
| #include <optional> |
| |
| #include "base/containers/span.h" |
| #include "components/history_embeddings/proto/history_embeddings.pb.h" |
| #include "components/os_crypt/async/common/encryptor.h" |
| |
| namespace history_embeddings { |
| |
| // Compresses and encrypts `passages_value` to a bytestring blob suitable for |
| // storage in the database. Returns an empty vector on error. |
| std::vector<uint8_t> PassagesProtoToBlob( |
| const proto::PassagesValue& passages_value, |
| const os_crypt_async::Encryptor& encryptor); |
| |
| // Decrypts and then decompresses `passages_blob` suitable for storage in the |
| // database to the original proto. Note that this can fail for invalid inputs, |
| // and therefore can return nullopt. |
| std::optional<proto::PassagesValue> PassagesBlobToProto( |
| base::span<const uint8_t> passages_blob, |
| const os_crypt_async::Encryptor& encryptor); |
| |
| } // namespace history_embeddings |
| |
| #endif // COMPONENTS_HISTORY_EMBEDDINGS_PASSAGES_UTIL_H_ |
