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<?php |
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namespace Retrinko\Ini; |
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use Retrinko\Ini\Exceptions\FileException; |
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class IniFileLocator |
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{ |
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const LOCAL_FILE_CHUNK = 'local'; |
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/** |
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* @var array |
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*/ |
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protected $supportedExtensions = ['ini']; |
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/** |
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* @var IniFileLocator |
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*/ |
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protected static $instance; |
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/** |
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* IniFileLocator constructor. |
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*/ |
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protected function __construct() |
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{ |
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} |
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/** |
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* @return IniFileLocator |
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*/ |
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public static function i() |
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{ |
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return self::getInstance(); |
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} |
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/** |
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* @return IniFileLocator |
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*/ |
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public static function getInstance() |
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{ |
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if (is_null(self::$instance)) |
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{ |
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self::$instance = new self(); |
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} |
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return self::$instance; |
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} |
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private function __clone() |
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{ |
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} |
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/** @noinspection PhpUnusedPrivateMethodInspection */ |
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private function __wakeup() |
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{ |
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} |
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/** |
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* @param string $filePath |
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* |
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* @return string |
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* @throws FileException |
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*/ |
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public function locate($filePath) |
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{ |
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$file = $filePath; |
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if (!is_file($filePath)) |
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{ |
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throw new FileException(sprintf('Invalid file! File "%s" does not exist.', |
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$filePath)); |
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} |
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if (!is_readable($filePath)) |
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{ |
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throw new FileException(sprintf('Invalid file! File "%s" is not readable.', |
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$filePath)); |
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} |
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$pathInfo = pathinfo($filePath); |
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if (!isset($pathInfo['extension']) |
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|| !in_array($pathInfo['extension'], $this->supportedExtensions) |
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) |
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{ |
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throw new FileException(sprintf('Invalid file extension! Supported file extensions: %s', |
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implode(', ', $this->supportedExtensions))); |
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} |
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$localFileName = $pathInfo['dirname'] . DIRECTORY_SEPARATOR |
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. $this->composeLocalFileName($pathInfo['filename'], |
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$pathInfo['extension']); |
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if (is_file($localFileName) && is_readable($localFileName)) |
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{ |
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$file = $localFileName; |
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} |
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return realpath($file); |
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} |
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/** |
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* @param string $baseName |
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* @param string $extension |
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* |
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* @return string |
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*/ |
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protected function composeLocalFileName($baseName, $extension) |
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{ |
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return $baseName . '.' . self::LOCAL_FILE_CHUNK . '.' . $extension; |
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} |
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} |
retrinko /
ini
