date_time.h

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// Copyright (C) 2016-2019 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 HTTP_DATE_TIME_H
#define HTTP_DATE_TIME_H
 
#include <exceptions/exceptions.h>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <string>
 
namespace isc {
namespace http {
 
class HttpTimeConversionError : public Exception {
public:
    HttpTimeConversionError(const char* file, size_t line, const char* what) :
        isc::Exception(file, line, what) { };
};
 
class HttpDateTime {
public:
 
    HttpDateTime();
 
    explicit HttpDateTime(const boost::posix_time::ptime& t);
 
    boost::posix_time::ptime getPtime() const {
        return (time_);
    }
 
    std::string rfc1123Format() const;
 
    std::string rfc850Format() const;
 
    std::string asctimeFormat() const;
 
    static HttpDateTime fromRfc1123(const std::string& time_string);
 
    static HttpDateTime fromRfc850(const std::string& time_string);
 
    static HttpDateTime fromAsctime(const std::string& time_string);
 
    static HttpDateTime fromAny(const std::string& time_string);
 
private:
 
    std::string toString(const std::string& format,
                         const std::string& method_name) const;
 
    static boost::posix_time::ptime
    fromString(const std::string& time_string, const std::string& format,
               const std::string& method_name, const bool zone_check = true);
 
    boost::posix_time::ptime time_;
 
};
 
} // namespace http
} // namespace isc
 
#endif