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<?php |
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namespace Rezzza\SecurityBundle\Request\Obfuscator; |
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use Rezzza\SecurityBundle\Exception\ObfuscateBadPatternException; |
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/** |
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* RequestObfuscator |
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* |
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* @uses ObfuscatorInterface |
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* @author Stephane PY <[email protected]> |
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*/ |
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class RequestObfuscator implements ObfuscatorInterface |
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{ |
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CONST TOKEN_REPLACE = 'X'; |
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CONST TOKEN_ALL = '*'; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function obfuscate(array $data, array $obfuscatedPatterns) |
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{ |
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foreach ($obfuscatedPatterns as $key => $pattern) { |
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if (isset($data[$key])) { |
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$data[$key] = $this->obfuscateContentWithPattern($data[$key], $pattern); |
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} |
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} |
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return $data; |
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} |
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private function obfuscateContentWithPattern($content, $pattern) |
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{ |
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if (!is_array($content)) { |
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return is_scalar($content) ? $this->obfuscateContent($content) : null; |
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} |
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if ($pattern === self::TOKEN_ALL) { |
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return self::TOKEN_REPLACE; |
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} |
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$patterns = (array) $pattern; |
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foreach ($patterns as $pattern) { |
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$keys = array_map(function($v) { |
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return str_replace(']', '', $v); |
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}, explode('[', $pattern)); |
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$pattern = array_shift($keys); |
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if (array_key_exists($pattern, $content)) { |
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if (count($keys) === 0) { |
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$content[$pattern] = $this->obfuscateContent($content[$pattern]); |
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} else { |
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$newPattern = array_shift($keys); |
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foreach ($keys as $key) { |
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$newPattern .= sprintf('[%s]', $key); |
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} |
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$content[$pattern] = $this->obfuscateContentWithPattern($content[$pattern], $newPattern); |
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} |
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} |
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} |
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return $content; |
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} |
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private function obfuscateContent($content) |
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{ |
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return is_scalar($content) ? str_repeat(self::TOKEN_REPLACE, strlen($content)) : self::TOKEN_REPLACE; |
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} |
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} |
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