54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
#pragma once
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#ifndef MESSMER_CRYFS_SRC_CONFIG_CRYCONFIGLOADER_H_
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#define MESSMER_CRYFS_SRC_CONFIG_CRYCONFIGLOADER_H_
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#include <messmer/cpp-utils/pointer/unique_ref.h>
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#include <boost/filesystem.hpp>
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#include "CryConfigFile.h"
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#include "CryCipher.h"
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#include "CryConfigCreator.h"
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#include <messmer/cpp-utils/crypto/kdf/Scrypt.h>
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namespace cryfs {
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class CryConfigLoader {
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public:
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CryConfigLoader(cpputils::unique_ref<cpputils::Console> console, cpputils::RandomGenerator &keyGenerator, std::function<std::string()> askPassword, const boost::optional<std::string> &cipher);
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CryConfigLoader(CryConfigLoader &&rhs) = default;
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template<class SCryptSettings = cpputils::SCryptDefaultSettings>
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boost::optional<CryConfigFile> loadOrCreate(const boost::filesystem::path &filename);
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private:
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boost::optional<CryConfigFile> _loadConfig(const boost::filesystem::path &filename);
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template<class SCryptSettings>
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CryConfigFile _createConfig(const boost::filesystem::path &filename);
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CryConfigCreator _creator;
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std::function<std::string()> _askPassword;
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boost::optional<std::string> _cipher;
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DISALLOW_COPY_AND_ASSIGN(CryConfigLoader);
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};
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template<class SCryptSettings>
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boost::optional<CryConfigFile> CryConfigLoader::loadOrCreate(const boost::filesystem::path &filename) {
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if (boost::filesystem::exists(filename)) {
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return _loadConfig(filename);
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} else {
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return _createConfig<SCryptSettings>(filename);
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}
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}
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template<class SCryptSettings>
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CryConfigFile CryConfigLoader::_createConfig(const boost::filesystem::path &filename) {
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auto config = _creator.create(_cipher);
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//TODO Ask confirmation if using insecure password (<8 characters)
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std::string password = _askPassword();
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return CryConfigFile::create<SCryptSettings>(filename, std::move(config), password);
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}
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}
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#endif
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