diff --git a/gsuid_core/handler.py b/gsuid_core/handler.py
index 7671d11..9648cbb 100644
--- a/gsuid_core/handler.py
+++ b/gsuid_core/handler.py
@@ -52,6 +52,10 @@ async def msg_process(msg: MessageReceive) -> Event:
             data = _msg.data.split('|')
             event.file_name = data[0]
             event.file = data[1]
+            if str(data[0]).startswith(('http', 'https')):
+                event.file_type = 'url'
+            else:
+                event.file_type = 'base64'
         _content.append(_msg)
     event.content = _content
     return event
diff --git a/gsuid_core/models.py b/gsuid_core/models.py
index 1e6dfe1..51a0ac7 100644
--- a/gsuid_core/models.py
+++ b/gsuid_core/models.py
@@ -31,6 +31,7 @@ class Event(MessageReceive):
     reply: Optional[str] = None
     file_name: Optional[str] = None
     file: Optional[str] = None
+    file_type: Optional[Literal['url', 'base64']] = None
 
 
 class MessageSend(Struct):