Avoid xattr printed out as HTTP headers

fix https://github.com/chrislusf/seaweedfs/issues/2336

weed/filesys/xattr.go

@@ -2,6 +2,7 @@ package filesys
 
 import (
 	"context"
+	"strings"
 
 	"github.com/seaweedfs/fuse"
 
@@ -10,6 +11,10 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/util"
 )
 
+const (
+	XATTR_PREFIX = "xattr-" // same as filer
+)
+
 func getxattr(entry *filer_pb.Entry, req *fuse.GetxattrRequest, resp *fuse.GetxattrResponse) error {
 
 	if entry == nil {
@@ -18,7 +23,7 @@ func getxattr(entry *filer_pb.Entry, req *fuse.GetxattrRequest, resp *fuse.Getxa
 	if entry.Extended == nil {
 		return fuse.ErrNoXattr
 	}
-	data, found := entry.Extended[req.Name]
+	data, found := entry.Extended[XATTR_PREFIX+req.Name]
 	if !found {
 		return fuse.ErrNoXattr
 	}
@@ -47,7 +52,7 @@ func setxattr(entry *filer_pb.Entry, req *fuse.SetxattrRequest) error {
 	if entry.Extended == nil {
 		entry.Extended = make(map[string][]byte)
 	}
-	data, _ := entry.Extended[req.Name]
+	data, _ := entry.Extended[XATTR_PREFIX+req.Name]
 
 	newData := make([]byte, int(req.Position)+len(req.Xattr))
 
@@ -55,7 +60,7 @@ func setxattr(entry *filer_pb.Entry, req *fuse.SetxattrRequest) error {
 
 	copy(newData[int(req.Position):], req.Xattr)
 
-	entry.Extended[req.Name] = newData
+	entry.Extended[XATTR_PREFIX+req.Name] = newData
 
 	return nil
 
@@ -71,13 +76,13 @@ func removexattr(entry *filer_pb.Entry, req *fuse.RemovexattrRequest) error {
 		return fuse.ErrNoXattr
 	}
 
-	_, found := entry.Extended[req.Name]
+	_, found := entry.Extended[XATTR_PREFIX+req.Name]
 
 	if !found {
 		return fuse.ErrNoXattr
 	}
 
-	delete(entry.Extended, req.Name)
+	delete(entry.Extended, XATTR_PREFIX+req.Name)
 
 	return nil
 
@@ -90,7 +95,9 @@ func listxattr(entry *filer_pb.Entry, req *fuse.ListxattrRequest, resp *fuse.Lis
 	}
 
 	for k := range entry.Extended {
-		resp.Append(k)
+		if strings.HasPrefix(k, XATTR_PREFIX) {
+			resp.Append(k[len(XATTR_PREFIX):])
+		}
 	}
 
 	size := req.Size

weed/server/filer_server_handlers_read.go

@@ -97,7 +97,10 @@ func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request)
 
 	// print out the header from extended properties
 	for k, v := range entry.Extended {
-		w.Header().Set(k, string(v))
+		if !strings.HasPrefix(k, "xattr-") {
+			// "xattr-" prefix is set in filesys.XATTR_PREFIX
+			w.Header().Set(k, string(v))
+		}
 	}
 
 	//Seaweed custom header are not visible to Vue or javascript