Rename module

bdfr/site_downloaders/redgifs.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+
+import json
+import re
+from typing import Optional
+
+from bs4 import BeautifulSoup
+from praw.models import Submission
+
+from bdfr.exceptions import NotADownloadableLinkError, SiteDownloaderError
+from bdfr.resource import Resource
+from bdfr.site_authenticator import SiteAuthenticator
+from bdfr.site_downloaders.gif_delivery_network import GifDeliveryNetwork
+
+
+class Redgifs(GifDeliveryNetwork):
+    def __init__(self, post: Submission):
+        super().__init__(post)
+
+    def find_resources(self, authenticator: Optional[SiteAuthenticator] = None) -> list[Resource]:
+        return super().find_resources(authenticator)
+
+    @staticmethod
+    def _get_link(url: str) -> str:
+        try:
+            redgif_id = re.match(r'.*/(.*?)/?$', url).group(1)
+        except AttributeError:
+            raise SiteDownloaderError(f'Could not extract Redgifs ID from {url}')
+
+        url = 'https://redgifs.com/watch/' + redgif_id
+
+        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',
+        }
+
+        page = Redgifs.retrieve_url(url, headers=headers)
+
+        soup = BeautifulSoup(page.text, 'html.parser')
+        content = soup.find('script', attrs={'data-react-helmet': 'true', 'type': 'application/ld+json'})
+
+        if content is None:
+            raise SiteDownloaderError('Could not read the page source')
+
+        try:
+            out = json.loads(content.contents[0])['video']['contentUrl']
+        except (IndexError, KeyError):
+            raise SiteDownloaderError('Failed to find JSON data in page')
+        except json.JSONDecodeError as e:
+            raise SiteDownloaderError(f'Received data was not valid JSON: {e}')
+
+        return out