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<?php |
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/** |
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* This file is part of dispositif/wikibot application |
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* 2019 : Philippe M. <[email protected]> |
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* For the full copyright and MIT license information, please view the LICENSE file. |
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*/ |
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declare(strict_types=1); |
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namespace App\Application; |
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use App\Infrastructure\TagParser; |
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use Exception; |
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use GuzzleHttp\Client; |
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/** |
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* todo Move Infra? |
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* Class PublisherAction |
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* |
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* @package App\Application |
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*/ |
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class PublisherAction |
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{ |
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private $url; |
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public function __construct(string $url) |
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{ |
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$this->url = $url; |
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} |
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public function getUrl(): ?string |
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{ |
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return $this->url; |
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} |
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/** |
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* import source from URL with Guzzle. |
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* |
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* @return string|null |
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* @throws Exception |
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*/ |
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public function getHTMLSource(): string |
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{ |
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$client = new Client( |
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[ |
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'timeout' => 5, |
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'headers' => ['User-Agent' => getenv('USER_AGENT')], |
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] |
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); |
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$response = $client->get($this->url); |
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if (200 !== $response->getStatusCode()) { |
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throw new Exception('response error '.$response->getStatusCode().' '.$response->getReasonPhrase()); |
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} |
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return $response->getBody()->getContents(); |
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} |
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/** |
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* @param string $html |
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* |
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* @return array |
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* @throws Exception |
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*/ |
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public function extractWebData(string $html): array |
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{ |
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$ld = $this->extractLdJson($html); |
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$meta = $this->getMetaTags($html); |
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return ['JSON-LD' => $ld, 'meta' => $meta]; |
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} |
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/** |
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* extract LD-JSON metadata from <script type="application/ld+json">. |
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* |
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* @param string $html |
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* |
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* @return array |
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* @throws Exception |
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*/ |
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private function extractLdJson(string $html): array |
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{ |
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$parser = new TagParser(); |
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$results = $parser->importHtml($html)->xpathResults( |
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'//script[@type="application/ld+json"]' |
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); |
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foreach ($results as $result) { |
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$json = trim($result); |
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// filtrage empty value (todo?) |
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if (0 === strlen($json)) { |
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continue; |
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} |
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$data = json_decode($json, true); |
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if (!is_array($data)) { |
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return []; |
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} |
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// filtrage : @type => BreadcrumbList (lemonde) |
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// TODO : c'est quoi ça ? |
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if (isset($data['@type']) && 'BreadcrumbList' === $data['@type']) { |
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continue; |
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} |
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return $data; |
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} |
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return []; |
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} |
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/** |
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* todo move/refac/delete? |
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* |
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* @param string $str |
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* |
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* @return array |
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*/ |
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private function getMetaTags(string $str): array |
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{ |
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$pattern = ' |
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~<\s*meta\s |
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# using lookahead to capture type to $1 |
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(?=[^>]*? |
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\b(?:name|property|http-equiv)\s*=\s* |
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(?|"\s*([^"]*?)\s*"|\'\s*([^\']*?)\s*\'| |
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([^"\'>]*?)(?=\s*/?\s*>|\s\w+\s*=)) |
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) |
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# capture content to $2 |
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[^>]*?\bcontent\s*=\s* |
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(?|"\s*([^"]*?)\s*"|\'\s*([^\']*?)\s*\'| |
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([^"\'>]*?)(?=\s*/?\s*>|\s\w+\s*=)) |
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[^>]*> |
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~ix'; |
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if (preg_match_all($pattern, $str, $out)) { |
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return array_combine($out[1], $out[2]); |
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} |
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return []; |
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} |
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} |
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