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<?php |
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/** |
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* Scrambler.php |
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* |
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* @package Obfuscator |
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* @subpackage NodeVisitor |
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*/ |
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namespace Naneau\Obfuscator\Node\Visitor; |
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use Naneau\Obfuscator\StringScrambler; |
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use PhpParser\NodeVisitorAbstract; |
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use PhpParser\Node; |
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use \InvalidArgumentException; |
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/** |
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* Scrambler |
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* |
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* Base class for scrambling visitors |
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* |
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* @category Naneau |
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* @package Obfuscator |
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* @subpackage NodeVisitor |
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*/ |
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abstract class Scrambler extends NodeVisitorAbstract |
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{ |
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/** |
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* The string scrambler |
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* |
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* @var StringScrambler |
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**/ |
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private $scrambler; |
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/** |
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* Variables to ignore |
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* |
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* @var string[] |
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**/ |
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private $ignore = array(); |
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/** |
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* Constructor |
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* |
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* @param StringScrambler $scrambler |
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* @return void |
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**/ |
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public function __construct(StringScrambler $scrambler) |
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{ |
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$this->setScrambler($scrambler); |
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} |
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/** |
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* Scramble a property of a node |
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* |
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* @param Node $node |
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* @param string $var property to scramble |
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* @return Node |
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**/ |
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protected function scramble(Node $node, $var = 'name') |
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{ |
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// String/value to scramble |
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$toScramble = $node->$var; |
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// We ignore to scramble if it's not string (ex: a variable variable name) |
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if (!is_string($toScramble)) { |
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return; |
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} |
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// Make sure there's something to scramble |
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if (strlen($toScramble) === 0) { |
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throw new InvalidArgumentException(sprintf( |
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'"%s" value empty for node, can not scramble', |
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$var |
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)); |
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} |
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// Should we ignore it? |
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if (in_array($toScramble, $this->getIgnore())) { |
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return $node; |
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} |
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// Prefix with 'p' so we dont' start with an number |
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$node->$var = $this->scrambleString($toScramble); |
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// Return the node |
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return $node; |
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} |
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/** |
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* Scramble a string |
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* |
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* @param string $string |
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* @return string |
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**/ |
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protected function scrambleString($string) |
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{ |
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return 's' . $this->getScrambler()->scramble($string); |
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} |
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/** |
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* Get the string scrambler |
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* |
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* @return StringScrambler |
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*/ |
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public function getScrambler() |
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{ |
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return $this->scrambler; |
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} |
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/** |
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* Set the string scrambler |
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* |
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* @param StringScrambler $scrambler |
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* @return RenameParameter |
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*/ |
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public function setScrambler(StringScrambler $scrambler) |
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{ |
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$this->scrambler = $scrambler; |
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return $this; |
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} |
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/** |
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* Get variables to ignore |
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* |
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* @return string[] |
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*/ |
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public function getIgnore() |
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{ |
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return $this->ignore; |
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} |
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/** |
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* Set variables to ignore |
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* |
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* @param string[] $ignore |
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* @return parent |
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*/ |
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public function setIgnore(array $ignore) |
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{ |
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$this->ignore = $ignore; |
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return $this; |
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} |
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/** |
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* Add a variable name to ignore |
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* |
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* @param string|string[] $ignore |
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* @return RenameParameterVisitor |
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**/ |
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public function addIgnore($ignore) |
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{ |
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if (is_string($ignore)) { |
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$this->ignore = array_merge($this->ignore, array($ignore)); |
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} else if (is_array($ignore)) { |
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$this->ignore = array_merge($this->ignore, $ignore); |
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} else { |
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throw new InvalidArgumentException('Invalid ignore type passed'); |
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} |
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return $this; |
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} |
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} |
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naneau /
php-obfuscator
Loading history...
Adding a
@returnannotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.