[exhentai] fix extraction for disowned galleries (closes #2055)

gallery_dl/extractor/exhentai.py

@@ -239,7 +239,7 @@ class ExhentaiGalleryExtractor(ExhentaiExtractor):
             "title_jpn"    : text.unescape(extr('<h1 id="gj">', '</h1>')),
             "_"            : extr('<div id="gdc"><div class="cs ct', '"'),
             "eh_category"  : extr('>', '<'),
-            "uploader"     : text.unquote(extr('/uploader/', '"')),
+            "uploader"     : extr('<div id="gdn">', '</div>'),
             "date"         : text.parse_datetime(extr(
                 '>Posted:</td><td class="gdt2">', '</td>'), "%Y-%m-%d %H:%M"),
             "parent"       : extr(
@@ -255,6 +255,10 @@ class ExhentaiGalleryExtractor(ExhentaiExtractor):
             "torrentcount" : extr('>Torrent Download (', ')'),
         }
 
+        if data["uploader"].startswith("<"):
+            data["uploader"] = text.unescape(text.extract(
+                data["uploader"], ">", "<")[0])
+
         f = data["favorites"][0]
         if f == "N":
             data["favorites"] = "0"