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custom.py
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/
custom.py
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import datetime
import json
import dateparser
from bs4 import BeautifulSoup
from feedi.requests import requests
from feedi.scraping import CachingRequestsMixin
def fetch(feed_name, url):
parser = None
for cls in CustomParser.__subclasses__():
if cls.is_compatible(url):
parser = cls(feed_name, url)
if not parser:
raise ValueError("no custom parser for %s", url)
return parser.fetch()
class CustomParser(CachingRequestsMixin):
BASE_URL = 'TODO override'
def __init__(self, feed_name, url):
super().__init__()
self.feed_name = feed_name
self.url = url
@classmethod
def is_compatible(cls, feed_url):
return cls.BASE_URL in feed_url
def fetch(self):
raise NotImplementedError
class AgendaBAParser(CustomParser):
BASE_URL = 'https://laagenda.buenosaires.gob.ar'
def fetch(self):
api_url = f'{self.BASE_URL}/currentChannel.json'
response = requests.get(api_url)
items = response.json()['firstElements'][0]['items']['data']
entry_values = []
for item in items:
# keep only the date since the time is unreliable
created = datetime.datetime.fromisoformat(item['created_at']).date()
content_url = f'{self.BASE_URL}?contenido={item["id"]}'
entry_values.append({
'remote_id': item['id'],
'title': item['name'],
'username': item['additions'].split(';')[0].split('Por ')[-1],
'display_date': created,
'sort_date': created,
'content_short': item['synopsis'],
'media_url': item['image']['url'],
'target_url': content_url,
'raw_data': json.dumps(item)
})
return entry_values
class RevistaLenguaParser(CustomParser):
BASE_URL = 'https://www.penguinlibros.com'
def fetch(self):
url = f'{self.BASE_URL}/es/revista-lengua/entradas'
response = requests.get(url)
soup = BeautifulSoup(response.content, 'lxml')
entry_values = []
for a in soup.select('.post-title a'):
article_html = self.request(a['href'])
article_soup = BeautifulSoup(article_html, 'lxml')
script = article_soup.find_all('script', type="application/ld+json")[1]
item = json.loads(script.text)
del item['articleBody']
entry_values.append({
'raw_data': json.dumps(item),
'remote_id': item['url'],
'title': item['headline'],
'username': item['editor'],
'display_date': datetime.datetime.fromisoformat(item['dateCreated']),
'sort_date': datetime.datetime.fromisoformat(item['dateModified']),
'content_short': item['description'],
'media_url': item['image'],
'target_url': item['url'],
# this website does very funky things with the html that can't be parsed in the reader.
'content_url': None,
})
return entry_values
class EternaCadenciaParser(CustomParser):
BASE_URL = 'https://eternacadencia.com.ar'
def fetch(self):
url = f'{self.BASE_URL}/blog'
response = requests.get(url)
soup = BeautifulSoup(response.content, 'lxml')
entry_values = []
for article in soup.find_all(class_='news'):
content_url = self.BASE_URL + article.find('a')['href']
author = article.find(class_='tag')
if author:
author = author.text
date_str = article.find(class_='newsDate').text
date = dateparser.parse(date_str, languages=['es'])
entry_values.append({
'remote_id': content_url.split('/')[-1],
'title': article.find(class_='newsTitle').text,
'username': author,
'display_date': date,
'sort_date': date,
'content_short': article.find(class_='newsSummary').text,
'media_url': article.find('img')['src'],
'target_url': content_url,
'content_url': content_url,
})
return entry_values
class PioneerWorksParser(CustomParser):
BASE_URL = 'https://pioneerworks.org/'
def fetch(self):
url = f'{self.BASE_URL}/broadcast/directory'
response = requests.get(url)
script = BeautifulSoup(response.content, 'lxml').find(id='__NEXT_DATA__').text
directory = json.loads(script)['props']['pageProps']['directory']
entry_values = []
for article in directory:
if not article.get('pubDate') or article.get('_type') != 'article':
continue
pub_date = datetime.datetime.fromisoformat(article.get('pubDate').split('Z')[0])
# FIXME we should add support for skip older and min entries instead of this ad hoc check
if datetime.datetime.now() - pub_date > datetime.timedelta(days=30):
continue
article_url = f'{self.BASE_URL}/broadcast/{article["slug"]["current"]}'
entry_values.append({
'raw_data': json.dumps(article),
'remote_id': article['_id'],
'title': article['title'],
'username': article['byline'],
'display_date': pub_date,
'sort_date': pub_date,
'content_short': self.fetch_meta(article_url, 'og:description', 'description'),
'media_url': self.fetch_meta(article_url, 'og:image', 'twitter:image'),
'content_url': article_url,
})
return entry_values