[nyafuu] add thread extractor (#18)

gallery_dl/extractor/__init__.py

@@ -53,6 +53,7 @@ modules = [
     "mangastream",
     "nhentai",
     "nijie",
+    "nyafuu",
     "pawoo",
     "pinterest",
     "powermanga",

gallery_dl/extractor/nyafuu.py

@@ -0,0 +1,21 @@
+# -*- 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.nyafuu.org/"""
+
+from . import chan
+
+
+class NyafuuThreadExtractor(chan.FoolfuukaThreadExtractor):
+    """Extractor for images from threads on nyafuu.org"""
+    category = "nyafuu"
+    root = "https://archive.nyafuu.org"
+    pattern = [r"(?:https?://)?(?:archive\.)?nyafuu\.org/([^/]+)/thread/(\d+)"]
+    test = [("http://archive.nyafuu.org/c/thread/2849220/", {
+        "url": "bbe6f82944a45e359f5c8daf53f565913dc13e4f",
+    })]