add extractor 'yandere'

gallery_dl/extractor/booru.py

@@ -13,6 +13,7 @@ from .common import Message
 from .common import filename_from_url
 import xml.etree.ElementTree as ET
 import json
+import os.path
 import urllib.parse
 
 
@@ -55,7 +56,10 @@ class BooruExtractor(SequentialExtractor):
     def get_file_metadata(self, data):
         """Collect metadata for a downloadable file"""
         data["category"] = self.info["category"]
-        data["name"] = filename_from_url(self.get_file_url(data))
+        data["name"] = urllib.parse.unquote(
+            filename_from_url(self.get_file_url(data))
+        )
+        data["extension"] = os.path.splitext(data["name"])[1][1:]
         return data
 
     def get_file_url(self, data):