fix: restore deletion audit of individual objects (#6644)

docker/compose/fluent.conf

@@ -0,0 +1,8 @@
+<source>
+  @type forward
+  port 24224
+</source>
+
+<match **>
+  @type stdout  # Output logs to container's stdout (visible via `docker logs`)
+</match>

docker/compose/local-auditlog-compose.yml

@@ -19,7 +19,9 @@ services:
     depends_on:
       - fluent
   fluent:
-    image: fluent/fluentd:v1.14
+    image: fluent/fluentd:v1.17
+    volumes:
+      - ./fluent.conf:/fluentd/etc/fluent.conf
     ports:
       - 24224:24224
   #s3tests:

weed/s3api/s3api_object_handlers_delete.go

@@ -32,12 +32,23 @@ func (s3a *S3ApiServer) DeleteObjectHandler(w http.ResponseWriter, r *http.Reque
 	target := util.FullPath(fmt.Sprintf("%s/%s%s", s3a.option.BucketsPath, bucket, object))
 	dir, name := target.DirAndName()
 
+	var auditLog *s3err.AccessLog
+
+	if s3err.Logger != nil {
+		auditLog = s3err.GetAccessLog(r, http.StatusNoContent, s3err.ErrNone)
+	}
+
 	err := s3a.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
 
 		if err := doDeleteEntry(client, dir, name, true, false); err != nil {
 			return err
 		}
 
+		if auditLog != nil {
+			auditLog.Key = name
+			s3err.PostAccessLog(*auditLog)
+		}
+
 		if s3a.option.AllowEmptyFolder {
 			return nil
 		}

weed/s3api/s3err/audit_fluent.go

@@ -3,12 +3,13 @@ package s3err
 import (
 	"encoding/json"
 	"fmt"
-	"github.com/fluent/fluent-logger-golang/fluent"
-	"github.com/seaweedfs/seaweedfs/weed/glog"
-	"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
 	"net/http"
 	"os"
 	"time"
+
+	"github.com/fluent/fluent-logger-golang/fluent"
+	"github.com/seaweedfs/seaweedfs/weed/glog"
+	"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
 )
 
 type AccessLogExtend struct {