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<?php |
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namespace Jclyons52\PagePreview; |
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class Url |
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{ |
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public $original; |
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public $components; |
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public function __construct($url) |
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{ |
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$this->original = $url; |
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$this->components = $this->parse($url); |
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} |
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public static function findFirst($text) |
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{ |
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if ($urls = self::extract($text)) { |
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return new self($urls[0]); |
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} |
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return null; |
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} |
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public static function findAll($text) |
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{ |
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if ($urls = self::extract($text)) { |
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return array_map(function ($url) { |
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return new self($url); |
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}, $urls); |
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} |
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return null; |
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} |
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public static function extract($text) |
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{ |
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if (preg_match_all('!https?://\S+!', $text, $matches) === 0) { |
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return null; |
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} |
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return $matches[0]; |
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} |
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public function parse($url) |
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{ |
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$urlComponents = parse_url($url); |
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if (filter_var($url, FILTER_VALIDATE_URL) === false) { |
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throw new \Exception("url {$url} is invalid"); |
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} |
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return $urlComponents; |
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} |
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public function formatRelativeToAbsolute($url) |
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{ |
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if (substr($url, 0, 5) === "data:") { |
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return $url; |
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} |
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$path = array_key_exists('path', $this->components) ? $this->components['path'] : ''; |
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if (filter_var($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->components['host'] . $url; |
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} |
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$host = trim($this->components['host'], '/') . '/'; |
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$path = trim($path, '/') . '/'; |
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return 'http://' . $host . $path . $url; |
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} |
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} |
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jclyons52 /
page-preview
