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<?php |
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namespace AssetManager\Core\Resolver; |
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use Assetic\Factory\Resource\DirectoryResource; |
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use AssetManager\Core\Exception; |
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use SplFileInfo; |
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use Traversable; |
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use Zend\Stdlib\SplStack; |
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/** |
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* This resolver allows you to resolve from a stack of paths. |
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*/ |
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class PathStackResolver extends FileResolverAbstract |
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{ |
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/** |
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* @var SplStack |
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*/ |
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protected $paths; |
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/** |
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* Flag indicating whether or not LFI protection for rendering view scripts is enabled |
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* |
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* @var bool |
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*/ |
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protected $lfiProtectionOn = true; |
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/** |
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* Constructor |
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*/ |
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public function __construct() |
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{ |
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$this->paths = new SplStack(); |
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} |
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/** |
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* Add many paths to the stack at once |
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* |
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* @param array|Traversable $paths |
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* |
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* @return void |
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*/ |
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public function addPaths($paths) |
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{ |
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foreach ($paths as $path) { |
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$this->addPath($path); |
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} |
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} |
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/** |
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* Rest the path stack to the paths provided |
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* |
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* @param Traversable|array $paths |
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* |
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* @return void |
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* @throws Exception\InvalidArgumentException |
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*/ |
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public function setPaths($paths) |
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{ |
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if (!is_array($paths) && !$paths instanceof Traversable) { |
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throw new Exception\InvalidArgumentException(sprintf( |
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'Invalid argument provided for $paths, expecting either an array or Traversable object, "%s" given', |
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is_object($paths) ? get_class($paths) : gettype($paths) |
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)); |
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} |
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$this->clearPaths(); |
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$this->addPaths($paths); |
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} |
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/** |
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* Normalize a path for insertion in the stack |
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* |
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* @param string $path |
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* |
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* @return string |
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*/ |
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protected function normalizePath($path) |
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{ |
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$path = rtrim($path, '/\\'); |
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$path .= DIRECTORY_SEPARATOR; |
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return $path; |
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} |
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/** |
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* Add a single path to the stack |
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* |
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* @param string $path |
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* |
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* @return void |
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* @throws Exception\InvalidArgumentException |
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*/ |
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public function addPath($path) |
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{ |
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if (!is_string($path)) { |
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throw new Exception\InvalidArgumentException(sprintf( |
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'Invalid path provided; must be a string, received %s', |
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gettype($path) |
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)); |
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} |
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$this->paths[] = $this->normalizePath($path); |
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} |
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/** |
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* Clear all paths |
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* |
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* @return void |
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*/ |
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public function clearPaths() |
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{ |
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$this->paths = new SplStack(); |
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} |
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/** |
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* Returns stack of paths |
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* |
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* @return SplStack |
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*/ |
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public function getPaths() |
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{ |
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return $this->paths; |
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} |
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/** |
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* Set LFI protection flag |
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* |
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* @param bool $flag |
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* @return void |
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*/ |
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public function setLfiProtection($flag) |
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{ |
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$this->lfiProtectionOn = (bool) $flag; |
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} |
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/** |
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* Return status of LFI protection flag |
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* |
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* @return bool |
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*/ |
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public function isLfiProtectionOn() |
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{ |
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return $this->lfiProtectionOn; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function resolve($name) |
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{ |
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if ($this->isLfiProtectionOn() && preg_match('#\.\.[\\\/]#', $name)) { |
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return null; |
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} |
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foreach ($this->getPaths() as $path) { |
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$asset = $this->resolveFile($path . $name); |
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if (!$asset) { |
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return null; |
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} |
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$asset->mimetype = $this->getMimeResolver()->getMimeType($name); |
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return $asset; |
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} |
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return null; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function collect() |
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{ |
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$collection = array(); |
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foreach ($this->getPaths() as $path) { |
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$locations = new SplStack(); |
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$pathInfo = new SplFileInfo($path); |
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$locations->push($pathInfo); |
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$basePath = $this->normalizePath($pathInfo->getRealPath()); |
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while (!$locations->isEmpty()) { |
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/** @var SplFileInfo $pathInfo */ |
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$pathInfo = $locations->pop(); |
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if (!$pathInfo->isReadable()) { |
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continue; |
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} |
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if ($pathInfo->isDir()) { |
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$dir = new DirectoryResource($pathInfo->getRealPath()); |
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foreach ($dir as $resource) { |
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$locations->push(new SplFileInfo($resource)); |
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} |
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} elseif (!isset($collection[$pathInfo->getPath()])) { |
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$collection[] = substr($pathInfo->getRealPath(), strlen($basePath)); |
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} |
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} |
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} |
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return $collection; |
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} |
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} |
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wshafer /
assetmanager-core
