[4plebs] add thread extractor (#18)

gallery_dl/extractor/4plebs.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2017 Mike Fährmann
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+"""Extract images from https://archive.4plebs.org/"""
+
+from . import chan
+
+
+class FourplebsThreadExtractor(chan.FoolfuukaThreadExtractor):
+    """Extractor for images from threads on 4plebs.org"""
+    category = "4plebs"
+    pattern = [r"(?:https?://)?(?:archive\.)?4plebs\.org/([^/]+)/thread/(\d+)"]
+    test = [("https://archive.4plebs.org/tg/thread/54111182/", {
+        "url": "85f54faf037dee29ad1c413142bcc45cd905be5a",
+        "keyword": "59c414bddc58b77b3e481fbe1c4e4ea3d582b2d3",
+    })]
+    root = "https://archive.4plebs.org"