rss-bridge/bridges/EconomistBridge.php
2021-09-26 16:25:19 +05:00

125 lines
3.9 KiB
PHP

<?php
class EconomistBridge extends FeedExpander {
const MAINTAINER = 'bockiii';
const NAME = 'Economist Bridge';
const URI = 'https://www.economist.com/';
const CACHE_TIMEOUT = 3600; //1hour
const DESCRIPTION = 'Returns the latest articles for the selected category';
const PARAMETERS = array(
'global' => array(
'limit' => array(
'name' => 'Feed Item Limit',
'required' => true,
'type' => 'number',
'defaultValue' => 10,
'title' => 'Maximum number of returned feed items. Maximum 30, default 10'
)
),
'Topics' => array(
'topic' => array(
'name' => 'Topics',
'type' => 'list',
'title' => 'Select a Topic',
'defaultValue' => 'latest',
'values' => array(
'Latest' => 'latest',
'The world this week' => 'the-world-this-week',
'Letters' => 'letters',
'Leaders' => 'leaders',
'Briefings' => 'briefing',
'Special reports' => 'special-report',
'Britain' => 'britain',
'Europe' => 'europe',
'United States' => 'united-states',
'The Americas' => 'the-americas',
'Middle East and Africa' => 'middle-east-and-africa',
'Asia' => 'asia',
'China' => 'china',
'International' => 'international',
'Business' => 'business',
'Finance and economics' => 'finance-and-economics',
'Science and technology' => 'science-and-technology',
'Books and arts' => 'books-and-arts',
'Obituaries' => 'obituary',
'Graphic detail' => 'graphic-detail',
'Indicators' => 'economic-and-financial-indicators',
)
)
),
'Blogs' => array(
'blog' => array(
'name' => 'Blogs',
'type' => 'list',
'title' => 'Select a Blog',
'values' => array(
'Bagehots notebook' => 'bagehots-notebook',
'Bartleby' => 'bartleby',
'Buttonwoods notebook' => 'buttonwoods-notebook',
'Charlemagnes notebook' => 'charlemagnes-notebook',
'Democracy in America' => 'democracy-in-america',
'Erasmus' => 'erasmus',
'Free exchange' => 'free-exchange',
'Game theory' => 'game-theory',
'Gulliver' => 'gulliver',
'Kaffeeklatsch' => 'kaffeeklatsch',
'Prospero' => 'prospero',
'The Economist Explains' => 'the-economist-explains',
)
)
)
);
public function collectData(){
// get if topics or blogs were selected and store the selected category
switch ($this->queriedContext) {
case 'Topics':
$category = $this->getInput('topic');
break;
case 'Blogs':
$category = $this->getInput('blog');
break;
default:
$category = 'latest';
}
// limit the returned articles to 30 at max
if ((int)$this->getInput('limit') <= 30) {
$limit = (int)$this->getInput('limit');
} else {
$limit = 30;
}
$this->collectExpandableDatas('https://www.economist.com/' . $category . '/rss.xml', $limit);
}
protected function parseItem($feedItem){
$item = parent::parseItem($feedItem);
$article = getSimpleHTMLDOM($item['uri'])
or returnServerError('Could not request Site: ' . $item['title']);
// before the article can be added, it needs to be cleaned up, thus, the extra function
$item['content'] = $this->cleanContent($article);
// only the article lead image is retained
$item['enclosures'][] = $article->find('div.article__lead-image', 0)->find('img', 0)->getAttribute('src');
return $item;
}
private function cleanContent($article){
// the actual article is in this div
$content = $article->find('div.layout-article-body', 0)->innertext;
// clean the article content. Remove all div's since the text is in paragraph elements
foreach (array(
'<div '
) as $tag_start) {
$content = stripRecursiveHTMLSection($content, 'div', $tag_start);
}
// now remove embedded iframes. The podcast postings contain these for example
$content = preg_replace('/<iframe.*?\/iframe>/i', '', $content);
// fix the relative links
$content = defaultLinkTo($content, $this->getURI());
return $content;
}
}