1*ec63e07aSXin Li // Copyright 2019 Google LLC
2*ec63e07aSXin Li //
3*ec63e07aSXin Li // Licensed under the Apache License, Version 2.0 (the "License");
4*ec63e07aSXin Li // you may not use this file except in compliance with the License.
5*ec63e07aSXin Li // You may obtain a copy of the License at
6*ec63e07aSXin Li //
7*ec63e07aSXin Li // https://www.apache.org/licenses/LICENSE-2.0
8*ec63e07aSXin Li //
9*ec63e07aSXin Li // Unless required by applicable law or agreed to in writing, software
10*ec63e07aSXin Li // distributed under the License is distributed on an "AS IS" BASIS,
11*ec63e07aSXin Li // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12*ec63e07aSXin Li // See the License for the specific language governing permissions and
13*ec63e07aSXin Li // limitations under the License.
14*ec63e07aSXin Li
15*ec63e07aSXin Li // Utility functions for protobuf handling.
16*ec63e07aSXin Li
17*ec63e07aSXin Li #ifndef SANDBOXED_API_PROTO_HELPER_H_
18*ec63e07aSXin Li #define SANDBOXED_API_PROTO_HELPER_H_
19*ec63e07aSXin Li
20*ec63e07aSXin Li #include <cstddef>
21*ec63e07aSXin Li #include <cstdint>
22*ec63e07aSXin Li #include <type_traits>
23*ec63e07aSXin Li #include <vector>
24*ec63e07aSXin Li
25*ec63e07aSXin Li #include "absl/status/status.h"
26*ec63e07aSXin Li #include "absl/status/statusor.h"
27*ec63e07aSXin Li #include "sandboxed_api/proto_arg.pb.h"
28*ec63e07aSXin Li #include "sandboxed_api/util/status_macros.h"
29*ec63e07aSXin Li
30*ec63e07aSXin Li namespace sapi {
31*ec63e07aSXin Li
32*ec63e07aSXin Li namespace internal {
33*ec63e07aSXin Li
34*ec63e07aSXin Li absl::Status DeserializeProto(const char* data, size_t len,
35*ec63e07aSXin Li google::protobuf::MessageLite& output);
36*ec63e07aSXin Li
37*ec63e07aSXin Li } // namespace internal
38*ec63e07aSXin Li
39*ec63e07aSXin Li absl::StatusOr<std::vector<uint8_t>> SerializeProto(
40*ec63e07aSXin Li const google::protobuf::MessageLite& proto);
41*ec63e07aSXin Li
42*ec63e07aSXin Li template <typename T>
DeserializeProto(const char * data,size_t len)43*ec63e07aSXin Li absl::StatusOr<T> DeserializeProto(const char* data, size_t len) {
44*ec63e07aSXin Li static_assert(std::is_base_of<google::protobuf::MessageLite, T>::value,
45*ec63e07aSXin Li "Template argument must be a proto message");
46*ec63e07aSXin Li T result;
47*ec63e07aSXin Li SAPI_RETURN_IF_ERROR(
48*ec63e07aSXin Li internal::DeserializeProto(data, len, /*output=*/result));
49*ec63e07aSXin Li return result;
50*ec63e07aSXin Li }
51*ec63e07aSXin Li
52*ec63e07aSXin Li } // namespace sapi
53*ec63e07aSXin Li
54*ec63e07aSXin Li #endif // SANDBOXED_API_PROTO_HELPER_H_
55