fix(core): 优化 File 组件处理逻辑并增强 OneBot 驱动层路径兼容性

astrbot/core/message/components.py

@@ -720,13 +720,20 @@ async def get_file(self, allow_return_url: bool = False) -> str:
         if allow_return_url and self.url:
             return self.url
 
-        if self.file_ and os.path.exists(self.file_):
-            return os.path.abspath(self.file_)
+        if self.file_:
+            path = self.file_
+            if path.startswith("file:///"):
+                path = path[8:]
+            if os.path.exists(path):
+                return os.path.abspath(path)
 
         if self.url:
             await self._download_file()
             if self.file_:
-                return os.path.abspath(self.file_)
+                path = self.file_
+                if path.startswith("file:///"):
+                    path = path[8:]
+                return os.path.abspath(path)
 
         return ""
 

astrbot/core/platform/sources/aiocqhttp/aiocqhttp_message_event.py

@@ -1,4 +1,5 @@
 import asyncio
+import os
 import re
 from collections.abc import AsyncGenerator
 
@@ -45,6 +46,16 @@ async def _from_segment_to_dict(segment: BaseMessageComponent) -> dict:
         if isinstance(segment, File):
             # For File segments, we need to handle the file differently
             d = await segment.to_dict()
+            file_val = d.get("data", {}).get("file", "")
+            if (
+                file_val
+                and os.path.isabs(file_val)
+                and not file_val.startswith(("http", "base64", "file://"))
+            ):
+                if file_val.startswith("/"):
+                    d["data"]["file"] = f"file://{file_val}"
+                else:
+                    d["data"]["file"] = f"file:///{file_val}"
             return d
         if isinstance(segment, Video):
             d = await segment.to_dict()