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[GoogleScholarBridge] Follow authors of scientific publications. (#3066)

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* [GoogleScholarBridge] Follow authors of scientific publications.

* [GoogleScholarBridge] Fix linting.

* [GoogleScholarBridge] Fix more linting issues.

* [GoogleScholarBridge] Use author field in extracted page and drop publisher
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Tobias Alexander Franke 2022-09-25 22:22:49 +02:00 • committed by GitHub
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bridges/GoogleScholarBridge.php Normal file
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<?php
class GoogleScholarBridge extends BridgeAbstract
{
const NAME = 'Goolge Scholar';
const URI = 'https://scholar.google.com/';
const DESCRIPTION = 'Follow authors of scientific publications.';
const MAINTAINER = 'thefranke';
const CACHE_TIMEOUT = 86400; // 24h
const PARAMETERS = [[
'userId' => [
'name' => 'User ID',
'exampleValue' => 'qc6CJjYAAAAJ',
'required' => true
]
]];
public function getIcon()
{
return 'https://scholar.google.com/favicon.ico';
}
public function collectData()
{
$uri = self::URI . '/citations?hl=en&view_op=list_works&sortby=pubdate&user=' . $this->getInput('userId');
$html = getSimpleHTMLDOM($uri)
or returnServerError('Could not fetch Google Scholar data.');
$publications = $html->find('tr[class="gsc_a_tr"]');
foreach ($publications as $publication) {
$articleUrl = self::URI . htmlspecialchars_decode($publication->find('a[class="gsc_a_at"]', 0)->href);
$articleTitle = $publication->find('a[class="gsc_a_at"]', 0)->plaintext;
# fetch the article itself to extract rest of content
$contentArticle = getSimpleHTMLDOMCached($articleUrl);
$articleEntries = $contentArticle->find('div[class="gs_scl"]');
$articleDate = '';
$articleAbstract = '';
$articleAuthor = '';
$content = '';
foreach ($articleEntries as $entry) {
$field = $entry->find('div[class="gsc_oci_field"]', 0)->plaintext;
$value = $entry->find('div[class="gsc_oci_value"]', 0)->plaintext;
if ($field == 'Publication date') {
$articleDate = $value;
} else if ($field == 'Description') {
$articleAbstract = $value;
} else if ($field == 'Authors') {
$articleAuthor = $value;
} else if ($field == 'Scholar articles' || $field == 'Total citations') {
continue;
} else {
$content = $content . $field . ': ' . $value . '<br><br>';
}
}
$content = $content . $articleAbstract;
$item = [];
$item['title'] = $articleTitle;
$item['uri'] = $articleUrl;
$item['timestamp'] = strtotime($articleDate);
$item['author'] = $articleAuthor;
$item['content'] = $content;
$this->items[] = $item;
if (count($this->items) >= 10) {
break;
}
}
}
}