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<?php |
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/** |
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* This file is part of WebHelper Parser. |
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* |
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* (c) James <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace WebHelper\Parser\Parser; |
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use InvalidArgumentException; |
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use League\Uri\Schemes\Http as HttpUri; |
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use Webmozart\PathUtil\Path; |
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/** |
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* Web Helper Universal Descriptor, a.k.a. WHUD. |
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* |
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* This is used to find what a server is actually meant to serve |
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* |
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* @author James <[email protected]> |
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*/ |
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class Descriptor |
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{ |
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/** @var string the server name */ |
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private $host; |
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/** @var array a list of paths that exposes filesystem directories in the host context */ |
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private $paths; |
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/** |
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* Base constructor. |
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* |
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* @param string $host The host |
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* @param array $paths The paths |
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*/ |
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public function __construct($host = '', array $paths = []) |
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{ |
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$this->host = $host; |
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$this->paths = $paths; |
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} |
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/** |
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* Gets the served urls. |
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* |
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* @param string $path The path |
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* |
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* @return array The served urls |
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*/ |
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public function getServedUrls($path) |
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{ |
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$isServedAs = []; |
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foreach ($this->paths as $exposedPath => $exposedDirectory) { |
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$relative = $this->getRelative($path, $exposedDirectory); |
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if (!is_null($relative)) { |
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$isServedAs[] = $this->getHost().preg_replace(',/$,', '', $exposedPath).$relative; |
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} |
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} |
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return $isServedAs; |
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} |
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/** |
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* Gets the exposed path. |
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* |
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* @param string $url The url |
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* |
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* @return string The exposed path |
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*/ |
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public function getExposedPath($url) |
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{ |
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$isExposedAs = ''; |
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list($host, $path) = $this->getUriHostAndPath($url); |
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if ($host == $this->host) { |
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foreach ($this->paths as $exposedPath => $exposedDirectory) { |
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$relative = $this->getRelative($path, $exposedPath); |
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if (!is_null($relative)) { |
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$isExposedAs = $exposedDirectory.$relative; |
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break; |
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} |
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} |
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} |
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return $isExposedAs; |
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} |
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/** |
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* Gets the relative path if it matches against another path. |
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* |
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* @param string $path The path |
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* @param string $against The path to match against |
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* |
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* @return null|string The relative path. |
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*/ |
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private function getRelative($path, $against) |
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{ |
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$relative = null; |
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if (preg_replace(',/$,', '', $path) == $against || |
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Path::isBasePath($against, Path::getDirectory($path)) |
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) { |
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$relative = Path::makeRelative($path, $against); |
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$relative = $relative ? '/'.$relative : ''; |
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} |
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return $relative; |
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} |
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/** |
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* Gets the host. |
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* |
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* @return string The starting uri based on the host |
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*/ |
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protected function getHost() |
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{ |
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$host = $this->host; |
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$scheme = 'http'; |
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if (preg_match('/:443$/', $this->host)) { |
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$scheme = 'https'; |
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$host = preg_replace('/:443$/', '', $this->host); |
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} |
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return $scheme.'://'.$host; |
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} |
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/** |
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* Gets the uri host and path. |
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* |
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* @param string $url The url |
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* |
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* @return array The uri host and path |
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*/ |
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private function getUriHostAndPath($url) |
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{ |
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try { |
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$uri = HttpUri::createFromString($url); |
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} catch (InvalidArgumentException $e) { |
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return ['', '']; |
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} |
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$host = $uri->getHost(); |
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$port = $uri->getPort(); |
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if (!$port && $uri->getScheme() == 'https') { |
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$port = 443; |
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} |
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if ($port) { |
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$host .= ':'.strval($port); |
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} |
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$path = $uri->getPath(); |
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if (!$path) { |
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$path = '/'; |
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} |
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return [$host, $path]; |
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} |
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} |
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JamesRezo /
webhelper-parser
