[bluesky] handle different 'embed' structure

gallery_dl/extractor/bluesky.py

@@ -107,10 +107,14 @@ class BlueskyExtractor(Extractor):
                     post["width"] = post["height"] = 0
 
                 image = file["image"]
-                post["filename"] = link = image["ref"]["$link"]
+                try:
+                    cid = image["ref"]["$link"]
+                except KeyError:
+                    cid = image["cid"]
+                post["filename"] = cid
                 post["extension"] = image["mimeType"].rpartition("/")[2]
 
-                yield Message.Url, base + link, post
+                yield Message.Url, base + cid, post
 
     def posts(self):
         return ()

test/results/bluesky.py

@@ -202,4 +202,12 @@ __tests__ = (
     "uri"        : "at://did:plc:cslxjqkeexku6elp5xowxkq7/app.bsky.feed.post/3kkzc3xaf5m2w",
 },
 
+{
+    "#url"     : "https://bsky.app/profile/go-guiltism.bsky.social/post/3klgth6lilt2l",
+    "#comment" : "different embed CID path",
+    "#category": ("", "bluesky", "post"),
+    "#class"   : bluesky.BlueskyPostExtractor,
+    "#urls"    : "https://bsky.social/xrpc/com.atproto.sync.getBlob?did=did:plc:owc2r2dsewj3hk73rtd746zh&cid=bafkreieuhplc7fpbvi3suvacaf2dqxzvuu4hgl5o6eifqb76tf3uopldmi",
+},
+
 )