calibre/recipes/bbc_fast.recipe
2021-02-25 15:37:32 +05:30

162 lines
6.0 KiB
Python

#!/usr/bin/env python
# vim:fileencoding=utf-8
# License: GPLv3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net>
import json
from calibre import prepare_string_for_xml
from calibre.web.feeds.recipes import BasicNewsRecipe
# Article JSON parser {{{
def serialize_image(block):
yield '<div>'
block = block['model']
media = block['media']
alt = prepare_string_for_xml(media.get('alt') or '', True)
for q in ('originalSrc', 'src'):
if q in media:
src = prepare_string_for_xml(media[q])
break
else:
raise ValueError('No src found in media block: {}'.format(media))
yield '<img src="{}" alt="{}"/>'.format(src, alt)
caption = block.get('caption')
if caption:
yield '<div>{}</div>'.format(prepare_string_for_xml(caption))
yield '</div>'
def block_tag(name, generator):
yield '<' + name + '>'
yield from generator
yield '</' + name + '>'
def serialize_paragraph(block):
block = block['model']
for x in block['blocks']:
xt = x['type']
if xt == 'fragment':
styles = []
model = x['model']
for attr in model['attributes']:
if attr == 'bold':
styles.append('font-weight: bold')
elif attr in ('italic', 'italics'):
styles.append('font-style: italic')
if styles:
prefix = '<span style="{}">'.format('; '.join(styles))
suffix = '</span>'
else:
prefix = suffix = ''
yield prefix + prepare_string_for_xml(model['text']) + suffix
elif xt == 'urlLink':
model = x['model']
yield '<a href="{}">{}</a>'.format(prepare_string_for_xml(model['locator'], True), prepare_string_for_xml(model['text']))
def serialize_list(block):
for x in block['model']['blocks']:
if x['type'] == 'listItem':
yield from block_tag('li', serialize_paragraph(x))
def serialize_text(block):
block = block['model']
for x in block['blocks']:
xt = x['type']
if xt == 'paragraph':
yield from block_tag('p', serialize_paragraph(x))
elif xt == 'unorderedList':
yield from block_tag('ul', serialize_list(x))
elif xt == 'orderedList':
yield from block_tag('ol', serialize_list(x))
else:
raise KeyError('Unknown block type: ' + x['type'])
def serialize_contributor(contributor):
if 'title' in contributor:
yield '<h3>' + prepare_string_for_xml(contributor['title']) + '</h3>'
if 'subtitle' in contributor:
yield '<div>' + prepare_string_for_xml(contributor['subtitle']) + '</div>'
def parse_article_json(root, abort_article):
data = root['data']
has_media_experience = False
for key in data:
if key.startswith('article?'):
article = data[key]['data']
break
elif key.startswith('media-experience?'):
has_media_experience = True
else:
if has_media_experience:
abort_article('Skipping video article')
return
raise KeyError('No article found in data keys: {}'.format(data.keys()))
lines = []
if article.get('headline'):
lines.append('<h1>{}</h1>'.format(prepare_string_for_xml(article['headline'])))
if article.get('contributor'):
lines.extend(serialize_contributor(article['contributor']))
for block in article['blocks']:
bt = block.get('type')
if bt == 'image':
lines.extend(serialize_image(block))
elif bt == 'text':
lines.extend(serialize_text(block))
return '<html><body id="main-content">' + '\n'.join(lines) + '</body></html>'
# }}}
class BBC(BasicNewsRecipe):
title = 'BBC News (fast)'
__author__ = 'Kovid Goyal'
description = 'Visit BBC News for up-to-the-minute news, breaking news, video, audio and feature stories. BBC News provides trusted World and UK news as well as local and regional perspectives. Also entertainment, business, science, technology and health news.' # noqa
oldest_article = 2
max_articles_per_feed = 100
no_stylesheets = True
use_embedded_content = False
encoding = 'utf8'
publisher = 'BBC'
category = 'news, UK, world'
language = 'en_GB'
masthead_url = 'https://news.bbcimg.co.uk/img/1_0_1/cream/hi/news/news-blocks.gif'
conversion_options = {
'comments': description, 'tags': category, 'language': language, 'publisher': publisher,
}
feeds = [
('Top Stories', 'https://feeds.bbci.co.uk/news/rss.xml'),
('Science/Environment',
'https://feeds.bbci.co.uk/news/science_and_environment/rss.xml'),
('Technology', 'https://feeds.bbci.co.uk/news/technology/rss.xml'),
('Entertainment/Arts',
'https://feeds.bbci.co.uk/news/entertainment_and_arts/rss.xml'),
('Magazine', 'https://feeds.bbci.co.uk/news/magazine/rss.xml'),
('Business', 'https://feeds.bbci.co.uk/news/business/rss.xml'),
('Politics', 'https://feeds.bbci.co.uk/news/politics/rss.xml'),
('Health', 'https://feeds.bbci.co.uk/news/health/rss.xml'),
('US&Canada', 'https://feeds.bbci.co.uk/news/world/us_and_canada/rss.xml'),
('Latin America', 'https://feeds.bbci.co.uk/news/world/latin_america/rss.xml'),
('Europe', 'https://feeds.bbci.co.uk/news/world/europe/rss.xml'),
('South Asia', 'https://feeds.bbci.co.uk/news/world/south_asia/rss.xml'),
('England', 'https://feeds.bbci.co.uk/news/england/rss.xml'),
('Asia-Pacific', 'https://feeds.bbci.co.uk/news/world/asia_pacific/rss.xml'),
('Africa', 'https://feeds.bbci.co.uk/news/world/africa/rss.xml')
]
def preprocess_raw_html(self, raw_html, url):
q = '>window.__INITIAL_DATA__={'
idx = raw_html.find(q)
if idx < 0:
raise ValueError('Failed to find JSON')
data = raw_html[idx + len(q) - 1:]
idx = data.find('};</script>')
data = data[:idx+1]
root = json.loads(data)
return parse_article_json(root, self.abort_article)