[xasiat] fix 'IndexError' for albums without category (#8569)

gallery_dl/extractor/xasiat.py

@@ -38,7 +38,7 @@ class XasiatExtractor(Extractor):
                 "block_id": "list_albums_common_albums_list",
                 "sort_by": "post_date",
                 "from": pnum,
-                "_": int(time.time() * 1000)
+                "_": int(time.time() * 1000),
             }
 
             page = self.request(url, params=params).text
@@ -66,15 +66,14 @@ class XasiatAlbumExtractor(XasiatExtractor):
         images = extr('class="images"', "</div>")
 
         urls = list(text.extract_iter(images, 'href="', '"'))
-
+        categories = text.re(r'categories/[^"]+\">\s*(.+)\s*</a').findall(info)
         data = {
             "title": text.unescape(title),
             "model": text.re(
                 r'top_models1"></i>\s*(.+)\s*</span').findall(info),
             "tags": text.re(
                 r'tags/[^"]+\">\s*(.+)\s*</a').findall(info),
-            "album_category": text.re(
-                r'categories/[^"]+\">\s*(.+)\s*</a').findall(info)[0],
+            "album_category": categories[0] if categories else "",
             "album_url": response.url,
             "album_id": text.parse_int(album_id),
             "count": len(urls),

test/results/xasiat.py

@@ -58,6 +58,26 @@ __tests__ = (
     ],
 },
 
+{
+    "#url"     : "https://www.xasiat.com/albums/30478/gekkan-young-magazine-2025-no-11/",
+    "#comment" : "no 'album_category' (#8569)",
+    "#class"   : xasiat.XasiatAlbumExtractor,
+    "#pattern" : r"https://www\.xasiat\.com/get_image/\d+/\w+",
+    "#count"   : 13,
+
+    "album_category": "",
+    "album_id"      : 30478,
+    "album_url"     : "https://www.xasiat.com/albums/30478/gekkan-young-magazine-2025-no-11/",
+    "count"         : 13,
+    "extension"     : "jpg",
+    "model"         : [],
+    "title"         : "[Gekkan Young Magazine] 2025 No.11",
+    "tags"          : [
+        "Young Magazine",
+        "Teen",
+    ],
+},
+
 {
     "#url"    : "https://www.xasiat.com/albums/categories/gravure-idols/",
     "#class"  : xasiat.XasiatCategoryExtractor,