| // Copyright 2023 Google LLC |
| // |
| // 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 |
| // |
| // https://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. |
| |
| #include "quiche/blind_sign_auth/anonymous_tokens/cpp/crypto/proto_utils.h" |
| |
| namespace private_membership { |
| namespace anonymous_tokens { |
| |
| absl::StatusOr<AnonymousTokensUseCase> ParseUseCase( |
| absl::string_view use_case) { |
| AnonymousTokensUseCase parsed_use_case; |
| if (!AnonymousTokensUseCase_Parse(std::string(use_case), &parsed_use_case) || |
| parsed_use_case == ANONYMOUS_TOKENS_USE_CASE_UNDEFINED) { |
| return absl::InvalidArgumentError( |
| "Invalid / undefined use case cannot be parsed."); |
| } |
| return parsed_use_case; |
| } |
| |
| absl::StatusOr<absl::Time> TimeFromProto( |
| const quiche::protobuf::Timestamp& proto) { |
| const auto sec = proto.seconds(); |
| const auto ns = proto.nanos(); |
| // sec must be [0001-01-01T00:00:00Z, 9999-12-31T23:59:59.999999999Z] |
| if (sec < -62135596800 || sec > 253402300799) { |
| return absl::InvalidArgumentError(absl::StrCat("seconds=", sec)); |
| } |
| if (ns < 0 || ns > 999999999) { |
| return absl::InvalidArgumentError(absl::StrCat("nanos=", ns)); |
| } |
| return absl::FromUnixSeconds(proto.seconds()) + |
| absl::Nanoseconds(proto.nanos()); |
| } |
| |
| absl::StatusOr<quiche::protobuf::Timestamp> TimeToProto(absl::Time time) { |
| quiche::protobuf::Timestamp proto; |
| const int64_t seconds = absl::ToUnixSeconds(time); |
| proto.set_seconds(seconds); |
| proto.set_nanos((time - absl::FromUnixSeconds(seconds)) / |
| absl::Nanoseconds(1)); |
| // seconds must be [0001-01-01T00:00:00Z, 9999-12-31T23:59:59.999999999Z] |
| if (seconds < -62135596800 || seconds > 253402300799) { |
| return absl::InvalidArgumentError(absl::StrCat("seconds=", seconds)); |
| } |
| const int64_t ns = proto.nanos(); |
| if (ns < 0 || ns > 999999999) { |
| return absl::InvalidArgumentError(absl::StrCat("nanos=", ns)); |
| } |
| return proto; |
| } |
| |
| } // namespace anonymous_tokens |
| } // namespace private_membership |