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<?php |
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namespace Safelist; |
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use Safelist\Definition\IDefinition; |
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/** |
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* Main class for checking values against a safelist. It provides a method to |
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* set up the safelist and a method to match arbitrary string against the |
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* safelist. |
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* |
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* @author Sam Stenvall <[email protected]> |
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* @copyright Copyright © Sam Stenvall 2014- |
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* @license http://www.opensource.org/licenses/bsd-license.php New BSD License |
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*/ |
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class Check |
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{ |
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/** |
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* @var IDefinition[] the safelist definitions |
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*/ |
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private $_definitions = array(); |
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/** |
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* Parses the safelist definitions into respective objects |
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* @param array $safelist list of definition strings |
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* @throws \InvalidArgumentException if the definition type couldn't be |
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* determined |
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*/ |
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public function safelist(array $safelist) |
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{ |
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$this->_definitions = array(); |
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foreach ($safelist as $definition) |
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{ |
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// Pre-configured object |
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if (is_object($definition)) |
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{ |
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if ($definition instanceof Definition\IDefinition) |
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$definitionObject = $definition; |
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else |
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throw new \InvalidArgumentException('Definition objects must implement IDefinition'); |
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} |
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// IPv4 address |
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elseif (preg_match('/[a-z:\/]/', $definition) === 0) |
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$definitionObject = new Definition\IPv4Address($definition); |
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// IPv4 CIDR notation |
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elseif (preg_match('/[a-z:]/', $definition) === 0) |
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$definitionObject = new Definition\IPv4CIDR($definition); |
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// IPv6 address |
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elseif (preg_match('/^[0-9a-f:]+$/', $definition)) |
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$definitionObject = new Definition\IPv6Address($definition); |
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// IPv6 CIDR notation |
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elseif (preg_match('/^[0-9a-f:\/]+$/', $definition)) |
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$definitionObject = new Definition\IPv6CIDR($definition); |
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// Wildcard domain |
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elseif (preg_match('/^\*\.[\w\.\-]+$/', $definition)) |
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$definitionObject = new Definition\WildcardDomain($definition); |
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// Domain |
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elseif (preg_match('/^[\w\.\-]+$/', $definition)) |
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$definitionObject = new Definition\Domain($definition); |
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else |
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throw new \InvalidArgumentException('Unable to parse definition "'.$definition.'"'); |
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$this->_definitions[] = $definitionObject; |
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} |
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} |
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/** |
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* Checks the specified value against all configured definitions and |
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* returns true if at least one definition considers it a match |
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* @param string $value the value to be checked |
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* @return boolean |
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*/ |
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public function check($value) |
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{ |
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foreach ($this->_definitions as $definition) |
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if ($definition->match($value)) |
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return true; |
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return false; |
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} |
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} |
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Jalle19 /
php-whitelist-check
