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<?php |
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/* |
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* This file is part of dispositif/wikibot application (@github) |
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* 2019/2020 © Philippe/Irønie <[email protected]> |
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* For the full copyright and MIT license information, view the license file. |
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*/ |
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declare(strict_types=1); |
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namespace App\Domain; |
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use App\Application\Http\ExternHttpClient; |
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use App\Infrastructure\TagParser; |
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use Exception; |
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use Psr\Log\LoggerInterface; |
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/** |
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* Représente une page web d'un Lien Externe (hors wiki) |
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* Class ExternPage |
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* |
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* @package App\Domain |
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*/ |
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class ExternPage |
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{ |
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/** |
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* @var string |
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*/ |
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private $url; |
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/** |
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* @var string |
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*/ |
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private $html; |
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/** |
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* @var LoggerInterface|null |
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*/ |
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private $log; |
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/** |
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* ExternPage constructor. |
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* |
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* @param string $url |
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* @param string $html |
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* @param LoggerInterface|null $log |
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* |
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* @throws Exception |
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*/ |
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public function __construct(string $url, string $html, ?LoggerInterface $log = null) |
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{ |
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if (!ExternHttpClient::isWebURL($url)) { |
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throw new Exception('string is not an URL '.$url); |
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} |
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$this->url = $url; |
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$this->html = $html; |
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$this->log = $log; |
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} |
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/** |
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* @return string |
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*/ |
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public function getUrl(): string |
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{ |
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return $this->url; |
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} |
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/** |
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* @return array |
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* @throws Exception |
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*/ |
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public function getData(): array |
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{ |
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$ld = $this->parseLdJson($this->html); |
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$meta = $this->parseMetaTags($this->html); |
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$meta['html-lang'] = $this->parseHtmlLang($this->html); // <html lang="en"> |
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$meta['html-title'] = $this->parseHtmlTitle($this->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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* @throws Exception |
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*/ |
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private function parseLdJson(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($data) |
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|| (isset($data['@type']) && is_string($data['@type']) && preg_match('#Breadcrumb#i', $data['@type'])) |
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) { |
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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 parseMetaTags(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, $out)) { |
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$combine = array_combine($out[1], $out[2]); |
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return $combine ? $combine : []; |
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} |
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return []; |
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} |
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/** |
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* todo refactor |
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* todo optimize "https://www6.nhk.or.jp" => "nhk.or.jp" |
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* test.com => test.com |
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* bla.test.com => test.com |
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* test.co.uk => test.co.uk (national commercial subdomain) |
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* site.google.com => site.google.com (blog) |
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* |
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* @return string |
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* @throws Exception |
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*/ |
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public function getPrettyDomainName(): string |
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{ |
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$subDomain = $this->getSubDomain(); |
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if (!strpos($subDomain, '.uk') && !strpos($subDomain, '.jp') && !strpos($subDomain, '.ma') |
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&& !strpos($subDomain, '.kr') |
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&& strpos($subDomain, 'site.google.com') === false |
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) { |
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// bla.test.com => Test.com |
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if (preg_match('#\w+\.\w+$#', $subDomain, $matches)) { |
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return $matches[0]; |
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} |
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} |
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return $subDomain; |
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} |
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/** |
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* "http://www.bla.co.uk/fubar" => "bla.co.uk" |
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* @return string|null |
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* @throws Exception |
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*/ |
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public function getSubDomain(): string |
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{ |
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try { |
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return ExternDomains::extractSubDomain($this->url); |
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} catch (Exception $e) { |
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if ($this->log) { |
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$this->log->warning('ExternDomains::extractSubDomain NULL '.$this->url); |
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} |
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throw new Exception('ExternDomains::extractSubDomain NULL'); |
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} |
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} |
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/** |
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* Extract language from <html lang="en-us"> tag. |
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* |
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* @param string $html |
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* |
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* @return string|null |
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*/ |
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private function parseHtmlLang(string $html): ?string |
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{ |
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if (preg_match('#<html(?: [^>]+)? lang="([A-Z-]{2,15})"(?: [^>]+)?>#i', $html, $matches)) { |
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return $matches[1]; |
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} |
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return null; |
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} |
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/** |
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* Extract webpage title from HTML <title> |
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* not foolproof : example <!-- <title>bla</title> --> |
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* |
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* @param string $html |
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* |
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* @return string|null |
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*/ |
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private function parseHtmlTitle(string $html): ?string |
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{ |
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if (preg_match('#<title>([^<]+)</title>#i', $html, $matches)) { |
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return trim(strip_tags($matches[1])); |
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} |
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return null; |
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} |
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} |
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Dispositif /
Wikibot
