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LCSC: Follow first 'pdfUrl' link to get real datasheet URL (#582)

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* Follow first 'pdfUrl' link to get real datasheet URL

* Fix @param

* Fix @param

* Remove User-Agent header
It's not needed - LCSC was just having some server troubles over the weekend

* Added comment explaining the json_decode in getRealDatasheetUrl

---------

Co-authored-by: Jan Böhmer <mail@jan-boehmer.de>
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frank-f 2024-04-03 12:38:20 +02:00 • committed by GitHub
parent da75cca97c
commit 9770ffa46b
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1 changed files with 25 additions and 1 deletions
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26
src/Services/InfoProviderSystem/Providers/LCSCProvider.php
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@ -90,6 +90,28 @@ class LCSCProvider implements InfoProviderInterface
return $this->getPartDetail($product);
}
/**
* @param string $url
* @return String
*/
private function getRealDatasheetUrl(?string $url): string
{
if (!empty($url) && preg_match("/^https:\/\/(datasheet\.lcsc\.com|www\.lcsc\.com\/datasheet)\/.*(C\d+)\.pdf$/", $url, $matches) > 0) {
$response = $this->lcscClient->request('GET', $url, [
'headers' => [
'Referer' => 'https://www.lcsc.com/product-detail/_' . $matches[2] . '.html'
],
]);
if (preg_match('/(pdfUrl): ?("[^"]+wmsc\.lcsc\.com[^"]+\.pdf")/', $response->getContent(), $matches) > 0) {
//HACKY: The URL string contains escaped characters like \u002F, etc. To decode it, the JSON decoding is reused
//See https://github.com/Part-DB/Part-DB-server/pull/582#issuecomment-2033125934
$jsonObj = json_decode('{"' . $matches[1] . '": ' . $matches[2] . '}');
$url = $jsonObj->pdfUrl;
}
}
return $url;
}
/**
* @param string $term
* @return PartDetailDTO[]
@ -273,7 +295,9 @@ class LCSCProvider implements InfoProviderInterface
return [];
}
return [new FileDTO($url, null)];
$realUrl = $this->getRealDatasheetUrl($url);
return [new FileDTO($realUrl, null)];
}
/**