[fappic] add 'image' extractor (closes #1898)

docs/supportedsites.md

@@ -181,6 +181,12 @@ Consider all sites to be NSFW unless otherwise known.
     <td>Creators, Posts</td>
     <td><a href="https://github.com/mikf/gallery-dl#cookies">Cookies</a></td>
 </tr>
+<tr>
+    <td>Fappic</td>
+    <td>https://fappic.com/</td>
+    <td>individual Images</td>
+    <td></td>
+</tr>
 <tr>
     <td>Flickr</td>
     <td>https://www.flickr.com/</td>

gallery_dl/extractor/imagehosts.py

@@ -279,3 +279,23 @@ def get_info(self, page):
         url     , pos = text.extract(page, '<br><img src="', '"')
         filename, pos = text.extract(page, 'alt="', '"', pos)
         return url, filename
+
+
+class FappicImageExtractor(ImagehostImageExtractor):
+    """Extractor for single images from fappic.com"""
+    category = "fappic"
+    pattern = r"(?:https?://)?((?:www\.)?fappic\.com/(\w+)/[^/?#]+)"
+    test = ("https://www.fappic.com/98wxqcklyh8k/test.png", {
+        "pattern": r"https://img\d+\.fappic\.com/img/\w+/test\.png",
+        "keyword": "433b1d310b0ff12ad8a71ac7b9d8ba3f8cd1e898",
+        "content": "0c8768055e4e20e7c7259608b67799171b691140",
+    })
+
+    def get_info(self, page):
+        url     , pos = text.extract(page, '<a href="/?click"><img src="', '"')
+        filename, pos = text.extract(page, 'alt="', '"', pos)
+
+        if filename.startswith("Porn-Picture-"):
+            filename = filename[13:]
+
+        return url, filename

test/test_results.py

@@ -17,7 +17,8 @@
 import datetime
 
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-from gallery_dl import extractor, util, job, config, exception  # noqa E402
+from gallery_dl import \
+    extractor, util, job, config, exception, formatter  # noqa E402
 
 
 # temporary issues, etc.
@@ -262,7 +263,7 @@ def part_size(self):
         return 0
 
 
-class TestFormatter(util.Formatter):
+class TestFormatter(formatter.StringFormatter):
 
     @staticmethod
     def _noop(_):