user_file.h

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// Copyright (C) 2013-2015,2017 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#ifndef _USER_FILE_H
#define _USER_FILE_H


#include <user_data_source.h>
#include <user.h>

#include <boost/shared_ptr.hpp>
#include <fstream>
#include <string>

namespace user_chk {

class UserFileError : public UserDataSourceError {
public:
    UserFileError(const char* file, size_t line, const char* what) :
        UserDataSourceError(file, line, what)
    {}
};

class UserFile : public UserDataSource {
public:
    static const size_t USER_ENTRY_MAX_LEN = 4096;

    UserFile(const std::string& fname);

    virtual ~UserFile();

    virtual void open();

    virtual UserPtr readNextUser();

    virtual void close();

    virtual bool isOpen() const;

    UserPtr makeUser(const std::string& user_string);

private:
    std::string fname_;

    std::ifstream file_;

};

typedef boost::shared_ptr<UserFile> UserFilePtr;

} // namespace user_chk

#endif