1 // Copyright 2021 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // 15 /////////////////////////////////////////////////////////////////////////////// 16 17 #ifndef TINK_JWT_INTERNAL_JWT_FORMAT_H_ 18 #define TINK_JWT_INTERNAL_JWT_FORMAT_H_ 19 20 #include <string> 21 22 #include "google/protobuf/struct.pb.h" 23 #include "tink/jwt/raw_jwt.h" 24 #include "tink/util/status.h" 25 #include "tink/util/statusor.h" 26 #include "proto/tink.pb.h" 27 28 namespace crypto { 29 namespace tink { 30 namespace jwt_internal { 31 32 std::string EncodeHeader(absl::string_view json_header); 33 bool DecodeHeader(absl::string_view header, std::string* json_header); 34 35 absl::optional<std::string> GetKid( 36 uint32_t key_id, 37 ::google::crypto::tink::OutputPrefixType output_prefix_type); 38 absl::optional<uint32_t> GetKeyId(absl::string_view kid); 39 40 util::StatusOr<std::string> CreateHeader(absl::string_view algorithm, 41 absl::optional<absl::string_view> type_header, 42 absl::optional<absl::string_view> kid); 43 util::Status ValidateHeader(const google::protobuf::Struct& header, 44 absl::string_view algorithm, 45 absl::optional<absl::string_view> tink_kid, 46 absl::optional<absl::string_view> custom_kid); 47 absl::optional<std::string> GetTypeHeader( 48 const google::protobuf::Struct& header); 49 50 std::string EncodePayload(absl::string_view json_payload); 51 bool DecodePayload(absl::string_view payload, std::string* json_payload); 52 53 std::string EncodeSignature(absl::string_view signature); 54 bool DecodeSignature(absl::string_view encoded_signature, 55 std::string* signature); 56 57 class RawJwtParser { 58 public: 59 static util::StatusOr<RawJwt> FromJson( 60 absl::optional<std::string> type_header, absl::string_view json_payload); 61 }; 62 63 } // namespace jwt_internal 64 } // namespace tink 65 } // namespace crypto 66 67 #endif // TINK_JWT_INTERNAL_JWT_FORMAT_H_ 68