[wallpapercave] add extractor for images

docs/supportedsites.md

@@ -787,6 +787,12 @@ Consider all sites to be NSFW unless otherwise known.
     <td>Collections, individual Images, Search Results</td>
     <td><a href="configuration.rst#extractorwallhavenapi-key">API Key</a></td>
 </tr>
+<tr>
+    <td>WallpaperCave</td>
+    <td>https://wallpapercave.com/</td>
+    <td>individual Images, Search Results</td>
+    <td></td>
+</tr>
 <tr>
     <td>Warosu</td>
     <td>https://warosu.org/</td>

gallery_dl/extractor/__init__.py

@@ -131,6 +131,7 @@
     "vk",
     "vsco",
     "wallhaven",
+    "wallpapercave",
     "warosu",
     "weasyl",
     "webtoons",

gallery_dl/extractor/wallpapercave.py

@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2021 David Hoppenbrouwers
+#
+# 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.
+
+"""Extractor for https://wallpapercave.com/"""
+
+import re
+from .common import Extractor, Message
+from .. import text
+
+
+class WallpapercaveImageExtractor(Extractor):
+    """Extractor for images on wallpapercave.com"""
+    category = "wallpapercave"
+    subcategory = "image"
+    root = "https://wallpapercave.com"
+    pattern = r"(?:https?://)?(?:www\.)?wallpapercave\.com"
+
+    def __init__(self, match):
+        super().__init__(match)
+        self.url = match.string
+
+    def items(self):
+        page = self.request(self.url).text
+        paths = re.compile(r'<a class="download" href="(.+?)">').findall(page)
+        for path in paths:
+            url = self.root + path
+            image = {}
+            yield Message.Directory, image
+            yield Message.Url, url, text.nameext_from_url(url, image)