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121 lines
3.8 KiB
PHP
121 lines
3.8 KiB
PHP
<?php
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class SchweinfurtBuergerinformationenBridge extends BridgeAbstract {
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const MAINTAINER = 'mibe';
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const NAME = 'Schweinfurt Bürgerinformationen';
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const URI = 'https://www.schweinfurt.de/rathaus-politik/pressestelle/buergerinformationen/index.html';
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const ARTICLE_URI = 'https://www.schweinfurt.de/rathaus-politik/pressestelle/buergerinformationen/%d.html';
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const INDEX_CACHE_TIMEOUT = 10800; // 3h
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const ARTICLE_CACHE_TIMEOUT = 21600; // 6h
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const DESCRIPTION = 'Returns the latest news for citizens of Schweinfurt';
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const PARAMETERS = array(
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array(
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'pages' => array(
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'name' => 'Number of pages',
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'type' => 'number',
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'title' => 'Specifies the number of pages to fetch. Usually one or two are enough.',
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'exampleValue' => '1',
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'defaultValue' => '1',
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)
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)
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);
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public function getIcon()
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{
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return 'https://www.schweinfurt.de/__/images/favicon.ico';
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}
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public function collectData()
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{
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// Get number of pages to retrieve. One page is the minimum.
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$pages = $this->getInput('pages');
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if (!is_int($pages) || $pages < 1)
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$pages = 1;
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$articleIDs = array();
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for($page = 0; $page < $pages; $page++) {
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$newIDs = $this->getArticleIDsFromPage($page);
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$articleIDs = array_merge($articleIDs, $newIDs);
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}
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foreach($articleIDs as $articleID) {
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$this->items[] = $this->generateItemFromArticle($articleID);
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if (Debug::isEnabled())
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break;
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}
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}
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private function getArticleIDsFromPage($page)
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{
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$url = sprintf(self::URI . '?art_pager=%d', $page);
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$html = getSimpleHTMLDOMCached($url, self::INDEX_CACHE_TIMEOUT)
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or returnServerError('Could not retrieve ' . $url);
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$articles = $html->find('div.artikel-uebersicht');
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$articleIDs = array();
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foreach($articles as $article) {
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// The article ID is in the 'id' attribute of the div element, prefixed with 'artikel_id_'
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if (preg_match('/artikel_id_(\d+)/', $article->id, $match)) {
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$articleIDs[] = $match[1];
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} else
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returnServerError('Couldn\'t determine article ID from index page.');
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}
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return $articleIDs;
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}
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private function generateItemFromArticle($id)
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{
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$url = sprintf(self::ARTICLE_URI, $id);
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$html = getSimpleHTMLDOMCached($url, self::ARTICLE_CACHE_TIMEOUT)
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or returnServerError('Could not retrieve ' . $url);
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$div = $html->find('div#artikel-detail', 0);
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$divContent = $div->find('.c-content', 0);
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$images = $divContent->find('img');
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// Every external link has a little arrow symbol image attached to it.
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// Remove this image. This has to be done before building $content.
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foreach($images as $image)
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if ($image->class == 'imgextlink')
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$image->outertext = '';
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$title = $div->find('.c-title', 0)->innertext;
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$teaser = $div->find('.c-teaser', 0)->innertext;
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$content = $divContent->innertext;
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// The title can contain HTML entities. These can be converted back
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// to regular UTF-8 characters.
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$title = html_entity_decode($title, ENT_HTML5, 'UTF-8');
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// If there's a teaser, make it more eye-catching,
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// so that it is clear, that this is not part of the actual content.
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if (strlen(trim($teaser)) > 0)
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$content = '<i><strong>' . $teaser . '</strong></i>' . $content;
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$item = array(
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'uri' => $url,
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'title' => $title,
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'content' => $content,
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'uid' => $id,
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);
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// Let's see if there are images in the content, and if yes, attach
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// them as enclosures, but not images which are used for linking to an external site.
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foreach($images as $image)
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if ($image->class != 'imgextlink')
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$item['enclosures'][] = $image->src;
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// Get the date of the article. Example: "zuletzt geändert: 26.05.2020"
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$editDate = $div->find('div#edit', 0)->plaintext;
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$editDate = substr($editDate, strrpos($editDate, ' ') + 1);
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$editDate = DateTime::createFromFormat('d.m.Y', $editDate);
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if ($editDate !== false)
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$item['timestamp'] = $editDate->getTimestamp();
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return $item;
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}
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}
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