authz: Stdout logger

authz/audit/stdout_logger.go

@@ -0,0 +1,64 @@
+/*
+ *
+ * Copyright 2023 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.
+ *
+ */
+
+package audit
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type StdOutLogger struct{}
+
+func (logger *StdOutLogger) Log(event *Event) {
+	jsonBytes, err := json.Marshal(event)
+	if err != nil {
+		fmt.Errorf("failed to marshal log data to JSON: %v", err)
+	}
+
+	fmt.Println(string(jsonBytes))
+}
+
+func (logger *StdOutLogger) ToJSON() ([]byte, error) {
+	jsonBytes, err := json.Marshal(logger)
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal logger to JSON: %v", err)
+	}
+
+	return jsonBytes, nil
+}
+
+const (
+	stdName = "stdout"
+)
+
+type StdOutLoggerBuilder struct{}
+
+func (StdOutLoggerBuilder) Name() string {
+	return stdName
+}
+
+func (StdOutLoggerBuilder) Build(LoggerConfig) Logger {
+	return &StdOutLogger{}
+}
+
+func (StdOutLoggerBuilder) ParseLoggerConfig(config json.RawMessage) (LoggerConfig, error) {
+	fmt.Println("Config value ignored, " +
+		"StdOutLogger doesn't support any configs")
+	return nil, nil
+}

authz/audit/stdout_logger_test.go

@@ -0,0 +1,50 @@
+/*
+ *
+ * Copyright 2023 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.
+ *
+ */
+
+package audit
+
+import (
+	"testing"
+)
+
+var (
+	builder = &StdOutLoggerBuilder{}
+	logger  = builder.Build(nil)
+)
+
+func TestStdOutLogger_Log(t *testing.T) {
+	event := &Event{PolicyName: "test policy", Principal: "test principal"}
+	logger.Log(event)
+}
+
+//func TestMyLogger_ToJSON(t *testing.T) {
+//	jsonBytes, err := logger.ToJSON()
+//	if err != nil {
+//		t.Fatalf("Failed to marshal logger to JSON: %v", err)
+//	}
+//
+//	var restored StdOutLogger
+//	err = json.Unmarshal(jsonBytes, &restored)
+//	if err != nil {
+//		t.Fatalf("Failed to unmarshal logger back from JSON: %v", err)
+//	}
+//
+//	if !reflect.DeepEqual(logger, &restored) {
+//		t.Errorf("ToJSON() test failed, restored = %v, want %v", restored, logger)
+//	}
+//}