mirror of
https://github.com/owasp-modsecurity/ModSecurity.git
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106 lines
2.9 KiB
C++
106 lines
2.9 KiB
C++
/*
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* ModSecurity, http://www.modsecurity.org/
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* Copyright (c) 2015 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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#ifdef __cplusplus
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#include <string>
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#include <iostream>
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#include <unordered_map>
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#include <list>
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#include <vector>
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#include <algorithm>
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#include <memory>
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#endif
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#include "modsecurity/variable_value.h"
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#include "modsecurity/collection/collection.h"
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#ifndef SRC_COLLECTION_BACKEND_IN_MEMORY_PER_PROCESS_H_
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#define SRC_COLLECTION_BACKEND_IN_MEMORY_PER_PROCESS_H_
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#ifdef __cplusplus
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namespace modsecurity {
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namespace collection {
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namespace backend {
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/*
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* FIXME:
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*
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* This was an example grabbed from:
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* http://stackoverflow.com/questions/8627698/case-insensitive-stl-containers-e-g-stdunordered-set
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*
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* We have to have a better hash function, maybe based on the std::hash.
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*
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*/
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struct MyEqual {
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bool operator()(const std::string& Left, const std::string& Right) const {
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return Left.size() == Right.size()
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&& std::equal(Left.begin(), Left.end(), Right.begin(),
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[](char a, char b) {
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return tolower(a) == tolower(b);
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});
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}
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};
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struct MyHash{
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size_t operator()(const std::string& Keyval) const {
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// You might need a better hash function than this
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size_t h = 0;
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std::for_each(Keyval.begin(), Keyval.end(), [&](char c) {
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h += tolower(c);
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});
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return h;
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}
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};
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class InMemoryPerProcess :
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public std::unordered_multimap<std::string, std::string,
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/*std::hash<std::string>*/MyHash, MyEqual>,
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public Collection {
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public:
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InMemoryPerProcess(std::string name);
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~InMemoryPerProcess();
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void store(std::string key, std::string value) override;
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bool storeOrUpdateFirst(const std::string &key,
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const std::string &value) override;
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bool updateFirst(const std::string &key,
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const std::string &value) override;
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void del(const std::string& key) override;
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std::unique_ptr<std::string> resolveFirst(const std::string& var) override;
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void resolveSingleMatch(const std::string& var,
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std::vector<const VariableValue *> *l) override;
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void resolveMultiMatches(const std::string& var,
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std::vector<const VariableValue *> *l) override;
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void resolveRegularExpression(const std::string& var,
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std::vector<const VariableValue *> *l) override;
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private:
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pthread_mutex_t m_lock;
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};
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} // namespace backend
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} // namespace collection
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} // namespace modsecurity
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#endif
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#endif // SRC_COLLECTION_BACKEND_IN_MEMORY_PER_PROCESS_H_
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