implement media pipelines and url rewriting

repub/items.py

@@ -1,12 +1,24 @@
 from dataclasses import dataclass
-from typing import Any
+from typing import Any, List
 
 
 @dataclass
 class ElementItem:
+    feed_name: str
     el: Any
+    image_urls: List[str]
+    images: List[Any]
+    file_urls: List[str]
+    files: List[Any]
+    audio_urls: List[str]
+    audios: List[Any]
+    video_urls: List[str]
+    videos: List[Any]
 
 
 @dataclass
 class ChannelElementItem:
+    feed_name: str
     el: Any
+    image_urls: List[str]
+    images: List[Any]