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<?php

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namespace WordfenceLS;

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use RuntimeException;

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class Utility_Serialization {

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public static function unserialize($data, $options = array(), $validator = null) {

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static $serializedFalse;

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if ($serializedFalse === null)

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$serializedFalse = serialize(false);

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if ($data === $serializedFalse)

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return false;

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if (!is_serialized($data))

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throw new RuntimeException('Input data is not serialized');

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if (version_compare(PHP_VERSION, '5.6', '<=')) {

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$unserialized = @unserialize($data);

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}

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else {

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$unserialized = @unserialize($data, $options);

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}

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if ($unserialized === false)

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throw new RuntimeException('Deserialization failed');

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if ($validator !== null && !$validator($unserialized))

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throw new RuntimeException('Validation of unserialized data failed');

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return $unserialized;

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}

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}

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