[kemonoparty] restore discord pagination (#4676)

gallery_dl/extractor/kemonoparty.py

@@ -344,8 +344,15 @@ class KemonopartyDiscordExtractor(KemonopartyExtractor):
     def posts(self):
         url = "{}/api/v1/discord/channel/{}".format(
             self.root, self.channel_id)
-        params = {"skip": 0}
+        params = {"o": 0}
-        return self.request(url, params=params).json()
+
+        while True:
+            posts = self.request(url, params=params).json()
+            yield from posts
+
+            if len(posts) < 150:
+                break
+            params["o"] += 150
 
 
 class KemonopartyDiscordServerExtractor(KemonopartyExtractor):

test/results/kemonoparty.py

@@ -185,6 +185,18 @@ __tests__ = (
     "date"        : "type:datetime",
 },
 
+{
+    "#url"     : "https://kemono.party/discord/server/818188637329031199#818343747275456522",
+    "#comment" : "pagination",
+    "#category": ("", "kemonoparty", "discord"),
+    "#class"   : kemonoparty.KemonopartyDiscordExtractor,
+    "#range"   : "1-250",
+    "#count"   : 250,
+
+    "channel"     : "818343747275456522",
+    "channel_name": "wraith-sfw-gallery",
+},
+
 {
     "#url"     : "https://kemono.su/discord/server/256559665620451329/channel/462437519519383555#",
     "#category": ("", "kemonoparty", "discord"),