From 6bdc274d4db8063db44bb7b71ef7a1f354c07ee1 Mon Sep 17 00:00:00 2001
From: Lapshinn Vitaly <mr.lapshin.vitaly@gmail.com>
Date: Fri, 4 Feb 2022 03:28:37 +0300
Subject: [PATCH] add s3api error for copy in file, not directory

---
 weed/s3api/s3api_object_handlers.go | 8 ++++++--
 weed/s3api/s3err/s3api_errors.go    | 6 ++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/weed/s3api/s3api_object_handlers.go b/weed/s3api/s3api_object_handlers.go
index fd2a0e6bd..f454bfad2 100644
--- a/weed/s3api/s3api_object_handlers.go
+++ b/weed/s3api/s3api_object_handlers.go
@@ -436,10 +436,14 @@ func setEtag(w http.ResponseWriter, etag string) {
 }
 
 func filerErrorToS3Error(errString string) s3err.ErrorCode {
-	if strings.HasPrefix(errString, "existing ") && strings.HasSuffix(errString, "is a directory") {
+	switch {
+	case strings.HasPrefix(errString, "existing ") && strings.HasSuffix(errString, "is a directory"):
 		return s3err.ErrExistingObjectIsDirectory
+	case strings.HasSuffix(errString, "is a file"):
+		return s3err.ErrExistingObjectIsFile
+	default:
+		return s3err.ErrInternalError
 	}
-	return s3err.ErrInternalError
 }
 
 func (s3a *S3ApiServer) maybeAddFilerJwtAuthorization(r *http.Request, isWrite bool) {
diff --git a/weed/s3api/s3err/s3api_errors.go b/weed/s3api/s3err/s3api_errors.go
index 8d02f15b1..f4a83d979 100644
--- a/weed/s3api/s3err/s3api_errors.go
+++ b/weed/s3api/s3err/s3api_errors.go
@@ -101,6 +101,7 @@ const (
 	ErrPreconditionFailed
 
 	ErrExistingObjectIsDirectory
+	ErrExistingObjectIsFile
 )
 
 // error code to APIError structure, these fields carry respective
@@ -383,6 +384,11 @@ var errorCodeResponse = map[ErrorCode]APIError{
 		Description:    "Existing Object is a directory.",
 		HTTPStatusCode: http.StatusConflict,
 	},
+	ErrExistingObjectIsFile: {
+		Code:           "ExistingObjectIsFile",
+		Description:    "Existing Object is a file.",
+		HTTPStatusCode: http.StatusConflict,
+	},
 }
 
 // GetAPIError provides API Error for input API error code.