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<?php |
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namespace Jclyons52\PagePreview; |
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use GuzzleHttp\Client; |
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use Jclyons52\PHPQuery\Document; |
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use League\Plates\Engine; |
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class Preview |
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{ |
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protected $result; |
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protected $client; |
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public $document; |
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public $url; |
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protected $urlComponents; |
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public function __construct(Client $client) |
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{ |
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$this->client = $client; |
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} |
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/** |
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* @param string $url |
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* @return Document |
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*/ |
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public function fetch($url) |
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{ |
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$this->url = $url; |
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$this->urlComponents = parse_url($url); |
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$this->result = $this->client->request('GET', $url); |
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$body = $this->result->getBody()->getContents(); |
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$this->document = new Document($body); |
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return $this->document; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function title() |
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{ |
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return $this->document->querySelector('title')->text(); |
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} |
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/** |
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* @return mixed |
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*/ |
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public function metaDescription() |
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{ |
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return $this->document->querySelector('meta[name="description"]')->attr('content'); |
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} |
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/** |
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* @return mixed |
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*/ |
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public function metaKeywords() |
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{ |
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$keywordString = $this->document->querySelector('meta[name="keywords"]')->attr('content'); |
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$keywords = explode(',', $keywordString); |
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return array_map(function ($word) { |
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return trim($word); |
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}, $keywords); |
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} |
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/** |
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* @return mixed |
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*/ |
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public function metaTitle() |
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{ |
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return $this->document->querySelector('meta[name="title"]')->attr('content'); |
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} |
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/** |
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* @return array |
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*/ |
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public function meta() |
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{ |
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$metaTags = $this->document->querySelectorAll('meta'); |
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$values = []; |
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foreach ($metaTags as $meta) { |
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$values[$meta->attr('name')] = $meta->attr('content'); |
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} |
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return $values; |
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} |
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/** |
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* @return array |
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*/ |
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public function images() |
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{ |
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$images = $this->document->querySelectorAll('img'); |
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$urls = $images->attr('src'); |
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$result = []; |
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foreach ($urls as $url) { |
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$result[] = $this->formatUrl($url); |
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} |
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return $result; |
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} |
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public function render($type = 'card') |
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{ |
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$title = $this->metaTitle(); |
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$image = $this->images()[0]; |
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$description = $this->metaDescription(); |
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$templates = new Engine(__DIR__ . '/Templates'); |
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return $templates->render('card', [ 'title' => $title, 'image' => $image, 'body' => $description, 'url' => $this->url ]); |
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} |
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/** |
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* @param string $url |
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* @return array |
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*/ |
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private function formatUrl($url) |
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{ |
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$path = array_key_exists('path', $this->urlComponents) ? $this->urlComponents['path'] : ''; |
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if (filter_var($url, FILTER_VALIDATE_URL) !== false) { |
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return $url; |
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} |
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if (substr($url, 0, 1) === '/') { |
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return 'http://' . $this->urlComponents['host'] . $url; |
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} |
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return 'http://' . $this->urlComponents['host'] .$path . '/' . $url; |
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} |
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} |
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jclyons52 /
page-preview
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.