Fix: send decrypted size to notification event (#7248)

cmd/object-handlers.go

@@ -1312,6 +1312,7 @@ func (api objectAPIHandlers) PutObjectHandler(w http.ResponseWriter, r *http.Req
 
 	if objectAPI.IsEncryptionSupported() {
 		if crypto.IsEncrypted(objInfo.UserDefined) {
+			objInfo.Size, _ = objInfo.DecryptedSize()
 			switch {
 			case crypto.S3.IsEncrypted(objInfo.UserDefined):
 				w.Header().Set(crypto.SSEHeader, crypto.SSEAlgorithmAES256)
@@ -2347,6 +2348,11 @@ func (api objectAPIHandlers) CompleteMultipartUploadHandler(w http.ResponseWrite
 		host, port = "", ""
 	}
 
+	if objectAPI.IsEncryptionSupported() {
+		if crypto.IsEncrypted(objInfo.UserDefined) {
+			objInfo.Size, _ = objInfo.DecryptedSize()
+		}
+	}
 	// Notify object created event.
 	sendEvent(eventArgs{
 		EventName:    event.ObjectCreatedCompleteMultipartUpload,