Don't create py34.Post for downloading images

py34.Post does extension scan, that is not required as it is saved
inside the block data.

scraper/server/__main__.py

@@ -123,8 +123,7 @@ def get_image(post_id: int = None):
     if path.exists():
         return send_file(path)
     else:
-        post = py34.Post(entry.post, entry.dir, entry.image, entry.tags, entry.thumbnail)
-        image = post.get_image_data()
+        image = py34.scraper.scraper.get(py34.url.ImageURL(entry.dir, entry.image, enttype2ext(entry.type)))
         with open(path, "wb") as file:
             file.write(image)
         return send_file(path)