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/*
* Copyright 2007-2019 Content Management AG
* All rights reserved.
*
* author: Max Kellermann <mk@cm4all.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ISO8601.hxx"
#include "Convert.hxx"
#include "util/StringBuffer.hxx"
#include <stdexcept>
#include <assert.h>
StringBuffer<64>
FormatISO8601(const struct tm &tm) noexcept
{
StringBuffer<64> buffer;
strftime(buffer.data(), buffer.capacity(),
#ifdef _WIN32
"%Y-%m-%dT%H:%M:%SZ",
#else
"%FT%TZ",
#endif
&tm);
return buffer;
}
StringBuffer<64>
FormatISO8601(std::chrono::system_clock::time_point tp)
{
return FormatISO8601(GmTime(tp));
}
std::pair<std::chrono::system_clock::time_point,
std::chrono::system_clock::duration>
ParseISO8601(const char *s)
{
assert(s != nullptr);
#ifdef _WIN32
/* TODO: emulate strptime()? */
(void)s;
throw std::runtime_error("Time parsing not implemented on Windows");
#else
struct tm tm{};
const char *end = strptime(s, "%FT%TZ", &tm);
if (end == nullptr || *end != 0)
throw std::runtime_error("Failed to parse time stamp");
std::chrono::system_clock::duration precision = std::chrono::seconds(1);
auto tp = TimeGm(tm);
return std::make_pair(tp, precision);
#endif /* !_WIN32 */
}
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