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<?php
class GoogleSearchBridge extends BridgeAbstract
{
const MAINTAINER = 'sebsauvage';
const NAME = 'Google search';
const URI = 'https://www.google.com/';
const CACHE_TIMEOUT = 60 * 30; // 30m
const DESCRIPTION = 'Returns max 100 results from the past year.';
const PARAMETERS = [[
'q' => [
'name' => 'keyword',
'required' => true,
'exampleValue' => 'rss-bridge',
],
'verbatim' => [
'name' => 'Verbatim',
'type' => 'checkbox',
'title' => 'Use literal keyword(s) without making improvements',
],
]];
public function collectData()
{
// todo: wrap this in try..catch because 429 too many requests happens a lot
$dom = getSimpleHTMLDOM($this->getURI(), ['Accept-language: en-US']);
if (!$dom) {
returnServerError('No results for this query.');
}
$result = $dom->find('div[id=res]', 0);
if (!$result) {
return;
}
foreach ($result->find('div[class~=g]') as $element) {
$item = [];
$url = $element->find('a[href]', 0)->href;
$item['uri'] = htmlspecialchars_decode($url);
$item['title'] = $element->find('h3', 0)->plaintext;
$resultDom = $element->find('div[data-content-feature=1]', 0);
if ($resultDom) {
// Split by — or ·
$resultParts = preg_split('/( — | · )/', $resultDom->plaintext);
$resultDate = trim($resultParts[0]);
$resultContent = trim($resultParts[1] ?? '');
} else {
// Some search results don't have this particular dom identifier
$resultDate = null;
$resultContent = null;
}
if ($resultDate) {
try {
$createdAt = new \DateTime($resultDate);
// Set to midnight for consistent datetime
$createdAt->setTime(0, 0);
$item['timestamp'] = $createdAt->format('U');
} catch (\Exception $e) {
$item['timestamp'] = 0;
}
} else {
$item['timestamp'] = 0;
}
if ($resultContent) {
$item['content'] = $resultContent;
}
$this->items[] = $item;
}
// Sort by descending date
usort($this->items, function ($a, $b) {
return $b['timestamp'] <=> $a['timestamp'];
});
}
public function getURI()
{
if ($this->getInput('q')) {
$queryParameters = [
'q' => $this->getInput('q'),
'hl' => 'en',
'num' => '100', // get 100 results
'complete' => '0',
// in past year, sort by date, optionally verbatim
'tbs' => 'qdr:y,sbd:1' . ($this->getInput('verbatim') ? ',li:1' : ''),
];
return sprintf('https://www.google.com/search?%s', http_build_query($queryParameters));
}
return parent::getURI();
}
public function getName()
{
if (!is_null($this->getInput('q'))) {
return $this->getInput('q') . ' - Google search';
}
return parent::getName();
}
}
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