[furaffinity] improve new/old layout detection (fixes #2277)

gallery_dl/extractor/furaffinity.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2020-2021 Mike Fährmann
+# Copyright 2020-2022 Mike Fährmann
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
@@ -28,6 +28,7 @@ class FuraffinityExtractor(Extractor):
         Extractor.__init__(self, match)
         self.user = match.group(1)
         self.offset = 0
+        self._new_layout = None
 
         if self.config("descriptions") == "html":
             self._process_description = str.strip
@@ -64,8 +65,11 @@ class FuraffinityExtractor(Extractor):
     def _parse_post(self, post_id):
         url = "{}/view/{}/".format(self.root, post_id)
         extr = text.extract_from(self.request(url).text)
-        path = extr('href="//d', '"')
 
+        if self._new_layout is None:
+            self._new_layout = ("http-equiv=" not in extr("<meta ", ">"))
+
+        path = extr('href="//d', '"')
         if not path:
             self.log.warning(
                 "Unable to download post %s (\"%s\")",
@@ -84,10 +88,9 @@ class FuraffinityExtractor(Extractor):
             "url": "https://d" + path,
         })
 
-        tags = extr('class="tags-row">', '</section>')
-        if tags:
-            # new site layout
-            data["tags"] = text.split_html(tags)
+        if self._new_layout:
+            data["tags"] = text.split_html(extr(
+                'class="tags-row">', '</section>'))
             data["title"] = text.unescape(extr("<h2><p>", "</p></h2>"))
             data["artist"] = extr("<strong>", "<")
             data["_description"] = extr('class="section-body">', '</div>')
@@ -306,6 +309,25 @@ class FuraffinityPostExtractor(FuraffinityExtractor):
                        r"|http://www\.postybirb\.com",
             "count": 2,
         }),
+        # no tags (#2277)
+        ("https://www.furaffinity.net/view/45331225/", {
+            "keyword": {
+                "artist": "Kota_Remminders",
+                "artist_url": "kotaremminders",
+                "date": "dt:2022-01-03 17:49:33",
+                "fa_category": "Adoptables",
+                "filename": "1641232173.kotaremminders_chidopts1",
+                "gender": "Any",
+                "height": 905,
+                "id": 45331225,
+                "rating": "General",
+                "species": "Unspecified / Any",
+                "tags": [],
+                "theme": "All",
+                "title": "REMINDER",
+                "width": 1280,
+            },
+        }),
         ("https://furaffinity.net/view/21835115/"),
         ("https://sfw.furaffinity.net/view/21835115/"),
         ("https://www.furaffinity.net/full/21835115/"),