mirror of
https://github.com/owasp-modsecurity/ModSecurity.git
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60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
/*
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* ModSecurity, http://www.modsecurity.org/
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* Copyright (c) 2015 - 2021 Trustwave Holdings, Inc. (http://www.trustwave.com/)
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*
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* You may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* If any of the files related to licensing are missing or if you have any
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* other questions related to licensing please contact Trustwave Holdings, Inc.
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* directly using the email address security@modsecurity.org.
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*
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*/
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#ifndef SRC_OPERATORS_FUZZY_HASH_H_
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#define SRC_OPERATORS_FUZZY_HASH_H_
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#include <string>
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#include <memory>
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#include <utility>
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#ifdef WITH_SSDEEP
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#include <fuzzy.h>
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#endif
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#include "src/operators/operator.h"
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namespace modsecurity {
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namespace operators {
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struct fuzzy_hash_chunk {
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std::shared_ptr<char> data;
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std::shared_ptr<fuzzy_hash_chunk> next;
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};
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class FuzzyHash : public Operator {
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public:
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/** @ingroup ModSecurity_Operator */
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explicit FuzzyHash(std::unique_ptr<RunTimeString> param)
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: Operator("FuzzyHash", std::move(param)),
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m_threshold(0),
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m_head(NULL) { }
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~FuzzyHash() override = default;
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bool evaluate(Transaction *transaction, const std::string &std) override;
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bool init(const std::string ¶m, std::string *error) override;
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private:
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int m_threshold;
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std::shared_ptr<fuzzy_hash_chunk> m_head;
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};
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} // namespace operators
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} // namespace modsecurity
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#endif // SRC_OPERATORS_FUZZY_HASH_H_
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