[patreon] respect filters and sort order in query params (#711)

gallery_dl/extractor/patreon.py

@@ -205,7 +205,7 @@ class PatreonCreatorExtractor(PatreonExtractor):
     subcategory = "creator"
     pattern = (r"(?:https?://)?(?:www\.)?patreon\.com"
                r"/(?!(?:home|join|posts|login|signup)(?:$|[/?&#]))"
-               r"(?:user(?:/posts)?/?\?([^#]+)|([^/?&#]+)/?)")
+               r"([^/?&#]+)(?:/posts)?/?(?:\?([^#]+))?")
     test = (
         ("https://www.patreon.com/koveliana", {
             "range": "1-25",
@@ -224,6 +224,10 @@ class PatreonCreatorExtractor(PatreonExtractor):
                 "title"        : str,
             },
         }),
+        ("https://www.patreon.com/koveliana/posts?filters[month]=2020-3", {
+            "count": 1,
+            "keyword": {"date": "dt:2020-03-30 21:21:44"},
+        }),
         ("https://www.patreon.com/kovelianot", {
             "exception": exception.NotFoundError,
         }),
@@ -233,26 +237,33 @@ class PatreonCreatorExtractor(PatreonExtractor):
 
     def __init__(self, match):
         PatreonExtractor.__init__(self, match)
-        self.query, self.creator = match.groups()
+        self.creator, self.query = match.groups()
 
     def posts(self):
-        if self.creator:
-            url = "{}/{}".format(self.root, self.creator.lower())
+        query = text.parse_query(self.query)
+
+        creator_id = query.get("u")
+        if creator_id:
+            url = "{}/user?u={}".format(self.root, creator_id)
         else:
-            query = text.parse_query(self.query)
-            url = "{}/user?u={}".format(self.root, query.get("u"))
+            url = "{}/{}".format(self.root, self.creator.lower())
 
         page = self.request(url, notfound="creator").text
         campaign_id = text.extract(page, "/campaign/", "/")[0]
-
         if not campaign_id:
             raise exception.NotFoundError("creator")
 
+        filters = "".join(
+            "&filter[{}={}".format(key[8:], text.escape(value))
+            for key, value in query.items()
+            if key.startswith("filters[")
+        )
+
         url = self._build_url("posts", (
-            "&sort=-published_at"
+            "&sort=" + query.get("sort", "-published_at") +
             "&filter[is_draft]=false"
             "&filter[contains_exclusive_posts]=true"
-            "&filter[campaign_id]=" + campaign_id
+            "&filter[campaign_id]=" + campaign_id + filters
         ))
         return self._pagination(url)