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<?php |
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/** |
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* @package Fuel\FileSystem |
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* @version 2.0 |
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* @author Fuel Development Team |
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* @license MIT License |
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* @copyright 2010 - 2015 Fuel Development Team |
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* @link http://fuelphp.com |
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*/ |
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namespace Fuel\FileSystem; |
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class Filter |
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{ |
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/** |
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* @var array |
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*/ |
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protected $typeCache = []; |
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/** |
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* @var array |
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*/ |
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protected $filters = []; |
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/** |
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* Checks wether an path is of the correct type, dir or file |
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* |
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* @param string $type |
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* @param string $path |
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* |
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* @return boolean |
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*/ |
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public function isCorrectType($type, $path) |
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{ |
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if ( ! $type) |
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{ |
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return true; |
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} |
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if ( ! isset($this->typeCache[$path])) |
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{ |
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$this->typeCache[$path] = is_file($path) ? 'file' : 'dir'; |
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} |
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return $this->typeCache[$path] === $type; |
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} |
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/** |
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* Filters a batch of filesystem entries |
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* |
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* @param array $contents |
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* |
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* @return array |
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*/ |
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public function filter(array $contents) |
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{ |
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$filtered = array(); |
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$this->typeCache = array(); |
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foreach ($contents as $item) |
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{ |
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$passed = true; |
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foreach ($this->filters as $filter) |
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{ |
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$correctType = $this->isCorrectType($filter['type'], $item); |
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if ($correctType and preg_match($filter['pattern'], $item) !== $expected) |
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{ |
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$passed = false; |
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} |
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} |
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if ($passed) |
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{ |
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$filtered[] = $item; |
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} |
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} |
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return $contents; |
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} |
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/** |
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* Adds a filter |
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* |
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* @param string $filter |
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* @param boolean $expected |
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* @param string $type |
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*/ |
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public function addFilter($filter, $expected = true, $type = null) |
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{ |
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$filter = '#'.$filter.'#'; |
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$this->filters[] = array( |
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'pattern' => $filter, |
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'expected' => $expected, |
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'type' => $type, |
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); |
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} |
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/** |
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* Ensures an extension |
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* |
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* @param string $extension |
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*/ |
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public function hasExtension($extension) |
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{ |
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$filter = '\\.['.ltrim($extension, '.').']$'; |
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$this->addFilter($filter, true, 'file'); |
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} |
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/** |
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* Blocks by extension |
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* |
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* @param string $extension |
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*/ |
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public function blockExtension($extension) |
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{ |
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$filter = '\\.['.ltrim($extension, '.').']$'; |
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$this->addFilter($filter, false, 'file'); |
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} |
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/** |
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* Blocks hidden files |
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* |
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* @param string $type |
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*/ |
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public function blockHidden($type = null) |
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{ |
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$filter = '^\\.'; |
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$this->addFilter($filter, false, $type); |
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} |
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/** |
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* Allows only hidden files |
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* |
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* @param string $type |
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*/ |
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public function isHidden($type = null) |
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{ |
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$filter = '^\\.'; |
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$this->addFilter($filter, true, $type); |
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} |
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} |
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fuelphp /
filesystem
This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.