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<?php |
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/** |
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* Dom Parser |
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*/ |
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namespace App\Html; |
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use App\Exceptions\NoDownloadLinkException; |
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use Symfony\Component\DomCrawler\Crawler; |
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/** |
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* Class Parser |
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* @package App\Html |
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*/ |
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class Parser |
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{ |
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/** |
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* Parses the html and adds the lessons the the array. |
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* |
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* @param $html |
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* @param $array |
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*/ |
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public static function getAllLessons($html, &$array) |
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{ |
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$parser = new Crawler($html); |
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$parser->filter('h5.lesson-list-title')->each(function (Crawler $node) use (&$array) { |
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$link = $node->children()->attr('href'); |
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if (preg_match('/'.LARACASTS_LESSONS_PATH.'\/(.+)/', $link, $matches)) { // lesson |
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$array['lessons'][] = $matches[1]; |
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} else if ($node->children()->count() > 0) { |
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$link = $node->children()->eq(0)->attr('href'); |
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if (preg_match('/'.LARACASTS_SERIES_PATH.'\/(.+)\/episodes\/(\d+)/', $link, $matches)) { // serie lesson |
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$array['series'][$matches[1]][] = (int) $matches[2]; |
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} |
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} |
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}); |
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} |
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/** |
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* Determines if there is next page, false if not or the link. |
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* |
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* @param $html |
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* |
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* @return bool|string |
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*/ |
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public static function hasNextPage($html) |
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{ |
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$parser = new Crawler($html); |
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$node = $parser->filter('[rel=next]'); |
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if ($node->count() > 0) { |
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return $node->attr('href'); |
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} |
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return false; |
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} |
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/** |
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* Gets the token input. |
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* |
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* @param $html |
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* |
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* @return string |
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*/ |
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public static function getToken($html) |
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{ |
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$parser = new Crawler($html); |
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return $parser->filter("input[name=_token]")->attr('value'); |
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} |
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/** |
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* Gets the download link. |
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* |
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* @param $html |
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* @return string |
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* @throws NoDownloadLinkException |
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*/ |
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public static function getDownloadLink($html) |
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{ |
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preg_match("('\/downloads\/.*?')", $html, $matches); |
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if(isset($matches[0]) === false) { |
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throw new NoDownloadLinkException(); |
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} |
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return LARACASTS_BASE_URL . substr($matches[0],1,-1); |
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} |
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/** |
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* Extracts the name of the episode. |
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* |
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* @param $html |
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* |
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* @param $path |
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* @return string |
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*/ |
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public static function getNameOfEpisode($html, $path) |
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{ |
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$parser = new Crawler($html); |
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$t = $parser->filter("a[href='/".$path."']")->text(); |
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return trim($t); |
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} |
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} |
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iamfreee /
laracasts-downloader
