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bulk-downloader-for-reddit/bdfr/site_downloaders/gif_delivery_network.py
Ali Parlakçı 2eab4052c5
Fix GifDeliveryNetwork link algorithm (#298)
* Catch additional error when parsing site

* Fix GifDeliveryNetwork link algorithm

Co-authored-by: Serene-Arc <serenical@gmail.com>
2021-04-22 10:07:05 +03:00

37 lines
1.2 KiB
Python

#!/usr/bin/env python3
from typing import Optional
import json
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.base_downloader import BaseDownloader
class GifDeliveryNetwork(BaseDownloader):
def __init__(self, post: Submission):
super().__init__(post)
def find_resources(self, authenticator: Optional[SiteAuthenticator] = None) -> list[Resource]:
media_url = self._get_link(self.post.url)
return [Resource(self.post, media_url, '.mp4')]
@staticmethod
def _get_link(url: str) -> str:
page = GifDeliveryNetwork.retrieve_url(url)
soup = BeautifulSoup(page.text, 'html.parser')
content = soup.find('script', attrs={'data-react-helmet': 'true', 'type': 'application/ld+json'})
try:
content = json.loads(content.string)
out = content['video']['contentUrl']
except (json.JSONDecodeError, KeyError, TypeError):
raise SiteDownloaderError('Could not find source link')
return out