Rename module

bdfr/site_downloaders/gallery.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+
+import logging
+import re
+from typing import Optional
+
+import bs4
+from praw.models import Submission
+
+from bdfr.exceptions import SiteDownloaderError
+from bdfr.resource import Resource
+from bdfr.site_authenticator import SiteAuthenticator
+from bdfr.site_downloaders.base_downloader import BaseDownloader
+
+logger = logging.getLogger(__name__)
+
+
+class Gallery(BaseDownloader):
+    def __init__(self, post: Submission):
+        super().__init__(post)
+
+    def find_resources(self, authenticator: Optional[SiteAuthenticator] = None) -> list[Resource]:
+        image_urls = self._get_links(self.post.url)
+        if not image_urls:
+            raise SiteDownloaderError('No images found in Reddit gallery')
+        return [Resource(self.post, url) for url in image_urls]
+
+    @staticmethod
+    def _get_links(url: str) -> list[str]:
+        resource_headers = {
+            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko)'
+                          ' Chrome/67.0.3396.87 Safari/537.36 OPR/54.0.2952.64',
+            'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
+        }
+        page = Gallery.retrieve_url(url, headers=resource_headers)
+        soup = bs4.BeautifulSoup(page.text, 'html.parser')
+
+        links = soup.findAll('a', attrs={'target': '_blank', 'href': re.compile(r'https://preview\.redd\.it.*')})
+        links = [link.get('href') for link in links]
+        return links