| // |
| // Copyright 2021 gRPC authors. |
| // |
| // 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 |
| // |
| // http://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. |
| // |
| |
| #ifndef GRPC_CORE_EXT_FILTERS_RBAC_RBAC_SERVICE_CONFIG_PARSER_H |
| #define GRPC_CORE_EXT_FILTERS_RBAC_RBAC_SERVICE_CONFIG_PARSER_H |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <vector> |
| |
| #include "src/core/ext/service_config/service_config_parser.h" |
| #include "src/core/lib/security/authorization/grpc_authorization_engine.h" |
| |
| namespace grpc_core { |
| |
| // Channel arg key for enabling parsing RBAC via method config. |
| #define GRPC_ARG_PARSE_RBAC_METHOD_CONFIG \ |
| "grpc.internal.parse_rbac_method_config" |
| |
| class RbacMethodParsedConfig : public ServiceConfigParser::ParsedConfig { |
| public: |
| explicit RbacMethodParsedConfig(std::vector<Rbac> rbac_policies) { |
| for (auto& rbac_policy : rbac_policies) { |
| authorization_engines_.emplace_back(std::move(rbac_policy)); |
| } |
| } |
| |
| // Returns the authorization engine for a rbac policy at a certain index. For |
| // a connection on the server, multiple RBAC policies might be active. The |
| // RBAC filter uses this method to get the RBAC policy configured for a |
| // instance at a particular instance. |
| const GrpcAuthorizationEngine* authorization_engine(int index) const { |
| if (static_cast<size_t>(index) >= authorization_engines_.size()) { |
| return nullptr; |
| } |
| return &authorization_engines_[index]; |
| } |
| |
| private: |
| std::vector<GrpcAuthorizationEngine> authorization_engines_; |
| }; |
| |
| class RbacServiceConfigParser : public ServiceConfigParser::Parser { |
| public: |
| // Parses the per-method service config for rbac filter. |
| std::unique_ptr<ServiceConfigParser::ParsedConfig> ParsePerMethodParams( |
| const grpc_channel_args* args, const Json& json, |
| grpc_error_handle* error) override; |
| // Returns the parser index for RbacServiceConfigParser. |
| static size_t ParserIndex(); |
| // Registers RbacServiceConfigParser to ServiceConfigParser. |
| static void Register(); |
| }; |
| |
| } // namespace grpc_core |
| |
| #endif // GRPC_CORE_EXT_FILTERS_RBAC_RBAC_SERVICE_CONFIG_PARSER_H |