From 70e6e1549e8d9d2473ddf5fa50affb980c0c847e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20F=C3=A4hrmann?= <mike_faehrmann@web.de>
Date: Thu, 3 Feb 2022 23:43:18 +0100
Subject: [PATCH] [twitter] provide fallback URLs for card images

https://github.com/mikf/gallery-dl/commit/f2e8aedd746bd570a79d0289aaad68a00dbcf9f9#commitcomment-64057751
---
 gallery_dl/extractor/twitter.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gallery_dl/extractor/twitter.py b/gallery_dl/extractor/twitter.py
index 2fa556e4..f459fbac 100644
--- a/gallery_dl/extractor/twitter.py
+++ b/gallery_dl/extractor/twitter.py
@@ -168,6 +168,11 @@ class TwitterExtractor(Extractor):
                     if key in bvals:
                         value = bvals[key].get("image_value")
                         if value and "url" in value:
+                            base, sep, size = value["url"].rpartition("&name=")
+                            if sep:
+                                base += sep
+                                value["url"] = base + self._size_image
+                                value["_fallback"] = self._image_fallback(base)
                             files.append(value)
                             return
         elif name == "unified_card":