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<?php |
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/** |
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* File containing the class {@see \AppUtils\FileHelper\AbstractPathInfo}. |
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* |
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* @package Application Utils |
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* @subpackage FileHelper |
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* @see \AppUtils\FileHelper\AbstractPathInfo |
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*/ |
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declare(strict_types=1); |
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namespace AppUtils\FileHelper; |
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use AppUtils\FileHelper; |
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use AppUtils\FileHelper_Exception; |
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use AppUtils\Interface_Stringable; |
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use AppUtils\Interfaces\RenderableInterface; |
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use DateTime; |
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use DirectoryIterator; |
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use SplFileInfo; |
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/** |
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* Abstract implementation of the path info interface. |
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* |
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* @package Application Utils |
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* @subpackage FileHelper |
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* @author Sebastian Mordziol <[email protected]> |
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*/ |
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abstract class AbstractPathInfo implements PathInfoInterface |
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{ |
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protected string $path; |
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/** |
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* @var array<string,mixed> |
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*/ |
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private array $runtimeProperties = array(); |
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protected function __construct(string $path) |
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{ |
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$this->path = FileHelper::normalizePath($path); |
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} |
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/** |
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* The full path to the file/folder. |
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* @return string |
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*/ |
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public function getPath() : string |
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{ |
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return $this->path; |
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} |
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/** |
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* Gets the file name without path, e.g. "filename.txt", |
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* or the folder name if it's a folder. |
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* |
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* NOTE: This includes the file extension. To get a |
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* file's base name, get a file info instance, and use |
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* {@see FileInfo::getBaseName()}. |
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* |
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* @return string |
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*/ |
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public function getName() : string |
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{ |
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return basename($this->path); |
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} |
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final public function isFolder() : bool |
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{ |
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return $this instanceof FolderInfo; |
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} |
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final public function isIndeterminate() : bool |
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{ |
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return $this instanceof IndeterminatePath; |
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} |
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final public function isFile() : bool |
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{ |
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return $this instanceof FileInfo; |
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} |
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public function exists() : bool |
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{ |
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return file_exists($this->path); |
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} |
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public function isWritable() : bool |
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{ |
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return is_writable($this->path); |
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} |
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public function isReadable() : bool |
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{ |
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return is_readable($this->path); |
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} |
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/** |
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* The real path without symlinks to the file/folder. |
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* @return string |
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* |
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* @throws FileHelper_Exception |
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* @see FileHelper::ERROR_REAL_PATH_NOT_FOUND |
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*/ |
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public function getRealPath() : string |
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{ |
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$this->requireExists(); |
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$path = realpath($this->path); |
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if($path !== false) |
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{ |
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return FileHelper::normalizePath($path); |
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} |
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throw new FileHelper_Exception( |
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sprintf('Real path for [%s] not found.', $this->getName()), |
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sprintf('Tried accessing real path for [%s].', $this->getPath()), |
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FileHelper::ERROR_REAL_PATH_NOT_FOUND |
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); |
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} |
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/** |
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* @param bool $condition |
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* @param string $conditionLabel |
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* @param int|null $errorCode |
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* @return $this |
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* @throws FileHelper_Exception |
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*/ |
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private function requireTrue(bool $condition, string $conditionLabel, ?int $errorCode=null) : self |
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{ |
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if($condition === true) |
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{ |
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return $this; |
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} |
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if($errorCode === null) |
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{ |
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$errorCode = FileHelper::ERROR_FILE_DOES_NOT_EXIST; |
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} |
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throw new FileHelper_Exception( |
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sprintf('Path [%s] %s.', $this->getName(), $conditionLabel), |
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sprintf('Tried accessing the path [%s].', $this->getPath()), |
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$errorCode |
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); |
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} |
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/** |
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* @param int|null $errorCode |
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* @return $this |
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* @throws FileHelper_Exception |
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*/ |
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public function requireExists(?int $errorCode=null) : self |
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{ |
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return $this->requireTrue( |
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!empty($this->path) && realpath($this->path) !== false, |
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'does not exist', |
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FileHelper::ERROR_FILE_DOES_NOT_EXIST |
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); |
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} |
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/** |
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* @param int|NULL $errorCode |
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* @return $this |
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* @throws FileHelper_Exception |
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*/ |
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public function requireReadable(?int $errorCode=null) : self |
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{ |
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$this->requireExists($errorCode); |
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return $this->requireTrue( |
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$this->isReadable(), |
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'is not readable', |
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FileHelper::ERROR_FILE_NOT_READABLE |
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); |
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} |
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/** |
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* @param int|null $errorCode |
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* @return $this |
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* @throws FileHelper_Exception |
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*/ |
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public function requireWritable(?int $errorCode=null) : self |
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{ |
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return $this->requireTrue( |
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$this->isWritable(), |
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'is not writable', |
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FileHelper::ERROR_PATH_NOT_WRITABLE |
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); |
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} |
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/** |
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* @return FileInfo |
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* |
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* @throws FileHelper_Exception |
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* @see FileHelper::ERROR_PATH_IS_NOT_A_FILE |
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*/ |
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public function requireIsFile() : FileInfo |
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{ |
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if($this instanceof FileInfo) |
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{ |
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return $this; |
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} |
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throw new FileHelper_Exception( |
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'Target path is not a file', |
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sprintf( |
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'Path: [%s].', |
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$this->path |
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), |
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FileHelper::ERROR_PATH_IS_NOT_A_FILE |
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); |
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} |
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/** |
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* @return FolderInfo |
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* |
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* @throws FileHelper_Exception |
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* @see FileHelper::ERROR_PATH_IS_NOT_A_FOLDER |
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*/ |
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public function requireIsFolder() : FolderInfo |
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{ |
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if($this instanceof FolderInfo) |
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{ |
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return $this; |
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} |
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throw new FileHelper_Exception( |
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'Target path is not a folder', |
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sprintf( |
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'Path: [%s].', |
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$this->path |
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), |
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FileHelper::ERROR_PATH_IS_NOT_A_FOLDER |
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); |
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} |
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/** |
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* @param string|PathInfoInterface|SplFileInfo $path |
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* @return string |
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*/ |
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public static function type2string($path) : string |
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{ |
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if($path instanceof PathInfoInterface) |
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{ |
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return $path->getPath(); |
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} |
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if($path instanceof SplFileInfo) |
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{ |
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return $path->getPathname(); |
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} |
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return trim($path); |
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} |
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/** |
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* Resolves the type of the target path: file or folder. |
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* |
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* NOTE: Requires the file or folder to exist in the |
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* file system, and will throw an exception otherwise. |
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* |
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* @param string|PathInfoInterface|SplFileInfo $path |
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* @return PathInfoInterface |
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* |
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* @throws FileHelper_Exception |
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* @see FileHelper::ERROR_PATH_INVALID |
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*/ |
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public static function resolveType($path) : PathInfoInterface |
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{ |
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if($path instanceof PathInfoInterface) |
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{ |
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return $path; |
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} |
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$path = self::type2string($path); |
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if(FolderInfo::is_dir($path)) |
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{ |
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return FolderInfo::factory($path); |
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} |
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if(FileInfo::is_file($path)) |
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{ |
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return FileInfo::factory($path); |
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} |
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if(!empty($path) && $path !== '.' && $path !== '..') |
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{ |
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return new IndeterminatePath($path); |
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} |
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throw new FileHelper_Exception( |
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'Empty or invalid path given.', |
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'', |
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FileHelper::ERROR_PATH_INVALID |
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); |
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} |
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/** |
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* Stores an arbitrary value in this object, which can |
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* be retrieved again with {@see AbstractPathInfo::getRuntimeProperty()}. |
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* |
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* These properties have no functionality beyond offering |
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* a way to store custom data. |
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* |
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* @param string $name |
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* @param mixed $value |
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* @return $this |
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*/ |
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public function setRuntimeProperty(string $name, $value) : self |
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{ |
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$this->runtimeProperties[$name] = $value; |
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return $this; |
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} |
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/** |
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* Retrieves a previously set property, if any. |
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* |
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* @param string $name |
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* @return mixed|null The stored value, or null if it does not exist (or has a null value). |
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*/ |
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public function getRuntimeProperty(string $name) |
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{ |
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return $this->runtimeProperties[$name] ?? null; |
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} |
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public function __toString() : string |
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{ |
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return $this->getPath(); |
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} |
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/** |
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* Retrieves the last modified date for the specified file or folder. |
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* |
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* Note: If the target does not exist, returns null. |
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* |
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* @return DateTime|NULL |
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*/ |
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public function getModifiedDate() : ?DateTime |
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{ |
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$time = filemtime($this->getPath()); |
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if($time === false) { |
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return null; |
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} |
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$date = new DateTime(); |
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$date->setTimestamp($time); |
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return $date; |
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} |
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} |
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