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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\Application\Http; |
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use DomainException; |
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use GuzzleHttp\Client; |
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use Normalizer; |
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use Psr\Log\LoggerInterface; |
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use Throwable; |
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class ExternHttpClient implements HttpClientInterface |
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{ |
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/** |
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* @var Client |
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*/ |
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private $client; |
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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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public function __construct(?LoggerInterface $log = null) |
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{ |
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$this->log = $log; |
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$this->client = new Client( |
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[ |
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'timeout' => 30, |
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'allow_redirects' => true, |
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'headers' => ['User-Agent' => getenv('USER_AGENT')], |
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'verify' => false, // CURLOPT_SSL_VERIFYHOST |
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// 'proxy' => '192.168.16.1:10', |
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] |
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); |
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} |
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/** |
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* import source from URL with Guzzle. |
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* todo abstract + refac async request |
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* |
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* @param string $url |
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* @param bool|null $normalized |
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* |
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* @return string|null |
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*/ |
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public function getHTML(string $url, ?bool $normalized = false): ?string |
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{ |
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// todo : check banned domains ? |
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// todo : check DNS record => ban ? |
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// todo : accept non-ascii URL ? |
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// idn_to_ascii($url); |
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// idn_to_ascii('teßt.com',IDNA_NONTRANSITIONAL_TO_ASCII,INTL_IDNA_VARIANT_UTS46) |
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// checkdnsrr($string, "A") // check DNS record |
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if (!self::isWebURL($url)) { |
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throw new DomainException('URL not compatible : '.$url); |
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} |
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$response = $this->client->get($url); |
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if (200 !== $response->getStatusCode()) { |
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echo 'HTTP error '.$response->getStatusCode(); |
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if ($this->log) { |
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$this->log->error('HTTP error '.$response->getStatusCode().' '.$response->getReasonPhrase()); |
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} |
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return null; |
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} |
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6 |
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$html = (string)$response->getBody()->getContents() ?? ''; |
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return ($normalized) ? $this->normalizeHtml($html, $url) : $html; |
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} |
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public static function isWebURL(string $url): bool |
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{ |
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//$url = filter_var($url, FILTER_SANITIZE_URL); // strip "é" !!! |
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// FILTER_VALIDATE_URL restreint à caractères ASCII : renvoie false avec "é" dans URL / not multibyte capable |
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// !filter_var($url, FILTER_VALIDATE_URL) |
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if (!preg_match('#^https?://[^ ]+$#i', $url)) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Normalize and converting to UTF-8 encoding |
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* |
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* @param string $html |
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* @param string|null $url |
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* |
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* @return string|null |
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*/ |
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private function normalizeHtml(string $html, ?string $url = ''): ?string |
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{ |
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if (empty($html)) { |
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return $html; |
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} |
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$html2 = Normalizer::normalize($html); |
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if (is_string($html2) && !empty($html2)) { |
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return $html2; |
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} |
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$charset = $this->extractCharset($html) ?? 'WINDOWS-1252'; |
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if (empty($charset)) { |
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throw new DomainException('normalized html error and no charset found : '.$url); |
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} |
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try { |
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$html2 = iconv($charset, 'UTF-8//TRANSLIT', $html); |
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$html2 = Normalizer::normalize($html2); |
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if (!is_string($html2)) { |
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return ''; |
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} |
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} catch (Throwable $e) { |
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throw new DomainException("error converting : $charset to UTF-8".$url); |
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} |
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return $html2; |
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} |
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/** |
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* Extract charset from HTML text |
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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 extractCharset(string $html): ?string |
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{ |
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if (preg_match( |
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'#<meta(?!\s*(?:name|value)\s*=)(?:[^>]*?content\s*=[\s"\']*)?([^>]*?)[\s"\';]*charset\s*=[\s"\']*([^\s"\'/>]*)#', |
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$html, |
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$matches |
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) |
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) { |
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$charset = $matches[2] ?? $matches[1] ?? null; |
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} |
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if (empty($charset)) { |
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$encoding = mb_detect_encoding($html, mb_detect_order(), true); |
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$charset = is_string($encoding) ? strtoupper($encoding) : null; |
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} |
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return $charset; |
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} |
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} |
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Dispositif /
Wikibot
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