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<?php |
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namespace tomzx\PolicyEvaluator; |
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class Resource |
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{ |
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public static $prefix = 'urn'; |
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/** |
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* @var array |
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*/ |
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private $resources; |
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/** |
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* @param array|string $resources |
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*/ |
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View Code Duplication |
public function __construct($resources) |
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{ |
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if ( ! is_array($resources)) { |
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$resources = (array)$resources; |
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} |
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foreach ($resources as $resource) { |
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if ($resource === '*') { |
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continue; |
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} |
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if (strpos($resource, self::$prefix . ':') !== 0) { |
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throw new \InvalidArgumentException('Invalid resource "' . $resource . '".'); |
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} |
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} |
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$this->resources = $resources; |
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} |
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/** |
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* @return array |
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*/ |
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public function getResources() |
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{ |
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return $this->resources; |
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} |
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/** |
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* @return array |
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*/ |
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public function getResourcesCompiled(array $variables = []) |
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{ |
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$variableStrings = $this->mapVariables($variables); |
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$resources = []; |
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foreach ($this->resources as $resource) { |
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$resources[] = $this->replaceVariables($resource, $variableStrings); |
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} |
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return $resources; |
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} |
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/** |
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* @param string $requestedResource |
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* @return bool |
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*/ |
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public function matches($requestedResource, array $variables = []) |
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{ |
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$resources = $this->getResourcesCompiled($variables); |
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foreach ($resources as $resource) { |
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$preparedResource = $this->replaceWildcard($resource); |
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$resourceRegex = '/^'.$preparedResource.'$/'; |
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if (preg_match($resourceRegex, $requestedResource)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* @param array $variables |
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* @return array |
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*/ |
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private function mapVariables(array $variables) |
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{ |
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$mappedVariables = []; |
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foreach ($variables as $key => $value) { |
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$mappedVariables['${'.$key.'}'] = $value; |
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} |
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return $mappedVariables; |
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} |
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/** |
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* @param string $resource |
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* @param array $variables |
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* @return string |
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*/ |
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private function replaceVariables($resource, array $variables) |
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{ |
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return strtr($resource, $variables); |
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} |
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/** |
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* @param string $resource |
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* @return string |
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*/ |
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private function replaceWildcard($resource) |
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{ |
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return str_replace('\*', '.*', preg_quote($resource, '/')); |
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} |
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} |
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tomzx /
policy-evaluator
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.