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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 Zend\Stdlib\SplStack; |
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/** |
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* This resolver allows you to resolve from a stack of aliases to a path. |
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*/ |
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class AliasPathStackResolver extends FileResolverAbstract |
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{ |
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/** |
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* @var array |
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*/ |
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protected $aliases = []; |
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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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* Populate the array stack with a list of aliases and their corresponding paths |
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* |
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* @param array $aliases |
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* |
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* @throws Exception\InvalidArgumentException |
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*/ |
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public function __construct(array $aliases) |
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{ |
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foreach ($aliases as $alias => $path) { |
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$this->addAlias($alias, $path); |
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} |
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} |
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/** |
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* Add a single alias to the stack |
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* |
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* @param string $alias |
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* @param string $path |
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* |
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* @throws Exception\InvalidArgumentException |
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*/ |
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private function addAlias($alias, $path) |
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{ |
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if (!is_string($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($path) |
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)); |
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} |
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if (!is_string($alias)) { |
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throw new Exception\InvalidArgumentException(sprintf( |
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'Invalid alias provided; must be a string, received %s', |
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gettype($alias) |
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)); |
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} |
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$this->aliases[$alias] = $this->normalizePath($path); |
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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 $path |
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* |
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* @return string |
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*/ |
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private function normalizePath($path) |
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{ |
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return rtrim($path, '/\\') . DIRECTORY_SEPARATOR; |
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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->aliases as $alias => $path) { |
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if (strpos($name, $alias) !== 0) { |
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continue; |
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} |
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$filename = substr_replace($name, '', 0, strlen($alias)); |
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$asset = $this->resolveFile($path . $filename); |
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if (!$asset) { |
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continue; |
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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 = []; |
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foreach ($this->aliases as $alias => $path) { |
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$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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throw new Exception\RuntimeException(sprintf('%s is not readable.', $pathInfo->getPath())); |
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} |
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if ($pathInfo->isDir()) { |
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foreach (new DirectoryResource($pathInfo->getRealPath()) as $resource) { |
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$locations->push(new SplFileInfo($resource)); |
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} |
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} else { |
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$collection[] = $alias . substr($pathInfo->getRealPath(), strlen($basePath)); |
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} |
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} |
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} |
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return array_unique($collection); |
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} |
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} |
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wshafer /
assetmanager-core
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.