1 // Copyright 2020 gRPC authors. 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 #ifndef GRPC_SRC_CORE_LIB_SECURITY_AUTHORIZATION_MOCK_CEL_FLAT_EXPR_BUILDER_H 16 #define GRPC_SRC_CORE_LIB_SECURITY_AUTHORIZATION_MOCK_CEL_FLAT_EXPR_BUILDER_H 17 18 #include <grpc/support/port_platform.h> 19 20 #include <memory> 21 #include <set> 22 #include <string> 23 #include <vector> 24 25 #include "absl/status/status.h" 26 #include "absl/status/statusor.h" 27 #include "google/api/expr/v1alpha1/syntax.upb.h" 28 #include "src/core/lib/security/authorization/mock_cel/cel_expression.h" 29 #include "src/core/lib/security/authorization/mock_cel/evaluator_core.h" 30 31 namespace grpc_core { 32 namespace mock_cel { 33 34 // This is a temporary stub implementation of CEL APIs. 35 // Once gRPC imports the CEL library, this file will be removed. 36 37 // CelExpressionBuilder implementation. 38 // Builds instances of CelExpressionFlatImpl. 39 class FlatExprBuilder : public CelExpressionBuilder { 40 public: 41 FlatExprBuilder() = default; 42 CreateExpression(const google_api_expr_v1alpha1_Expr * expr,const google_api_expr_v1alpha1_SourceInfo * source_info)43 absl::StatusOr<std::unique_ptr<CelExpression>> CreateExpression( 44 const google_api_expr_v1alpha1_Expr* expr, 45 const google_api_expr_v1alpha1_SourceInfo* source_info) const override { 46 ExecutionPath path; 47 return std::make_unique<CelExpressionFlatImpl>(nullptr, path, 0, 48 std::set<std::string>{}); 49 } 50 CreateExpression(const google_api_expr_v1alpha1_Expr * expr,const google_api_expr_v1alpha1_SourceInfo * source_info,std::vector<absl::Status> * warnings)51 absl::StatusOr<std::unique_ptr<CelExpression>> CreateExpression( 52 const google_api_expr_v1alpha1_Expr* expr, 53 const google_api_expr_v1alpha1_SourceInfo* source_info, 54 std::vector<absl::Status>* warnings) const override { 55 ExecutionPath path; 56 return std::make_unique<CelExpressionFlatImpl>(nullptr, path, 0, 57 std::set<std::string>{}); 58 } 59 }; 60 61 } // namespace mock_cel 62 } // namespace grpc_core 63 64 #endif // GRPC_SRC_CORE_LIB_SECURITY_AUTHORIZATION_MOCK_CEL_FLAT_EXPR_BUILDER_H 65