[imagetwist] add 'gallery' extractor (#5190)

docs/supportedsites.md

@@ -364,7 +364,7 @@ Consider all listed sites to potentially be NSFW.
 <tr>
     <td>Imagetwist</td>
     <td>https://imagetwist.com/</td>
-    <td>individual Images</td>
+    <td>Galleries, individual Images</td>
     <td></td>
 </tr>
 <tr>

gallery_dl/extractor/imagehosts.py

@@ -183,6 +183,23 @@ class ImagetwistImageExtractor(ImagehostImageExtractor):
         return url, filename
 
 
+class ImagetwistGalleryExtractor(ImagehostImageExtractor):
+    """Extractor for galleries from imagetwist.com"""
+    category = "imagetwist"
+    subcategory = "gallery"
+    pattern = (r"(?:https?://)?((?:www\.|phun\.)?"
+               r"image(?:twist|haha)\.com/(p/[^/?#]+/\d+))")
+    example = "https://imagetwist.com/p/USER/12345/NAME"
+
+    def items(self):
+        data = {"_extractor": ImagetwistImageExtractor}
+        root = self.page_url[:self.page_url.find("/", 8)]
+        page = self.request(self.page_url).text
+        gallery = text.extr(page, 'class="gallerys', "</div")
+        for path in text.extract_iter(gallery, ' href="', '"'):
+            yield Message.Queue, root + path, data
+
+
 class ImgspiceImageExtractor(ImagehostImageExtractor):
     """Extractor for single images from imgspice.com"""
     category = "imgspice"

test/results/imagetwist.py

@@ -41,4 +41,16 @@ __tests__ = (
     "#class"   : imagehosts.ImagetwistImageExtractor,
 },
 
+{
+    "#url"     : "https://imagetwist.com/p/gdldev/747223/digits",
+    "#category": ("imagehost", "imagetwist", "gallery"),
+    "#class"   : imagehosts.ImagetwistGalleryExtractor,
+    "#urls"    : (
+        "https://imagetwist.com/j6eu91sbl9bs",
+        "https://imagetwist.com/vx4oh119izyr",
+        "https://imagetwist.com/n3td3a6vzzed",
+        "https://imagetwist.com/8uz6lmg31nmc",
+    ),
+},
+
 )