/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <osl/time.h>
#include <com/sun/star/util/DateTime.hpp>
#include "DateTimeHelper.hxx"
using namespace com::sun::star::util;
using namespace http_dav_ucp;
bool DateTimeHelper::ISO8601_To_DateTime (std::u16string_view s,
DateTime& dateTime)
{
OString aDT = OUStringToOString(s, RTL_TEXTENCODING_ASCII_US);
int year, month, day, hours, minutes, off_hours, off_minutes, fix;
double seconds;
// 2001-01-01T12:30:00Z
int n = sscanf( aDT.getStr(),
"%04d-%02d-%02dT%02d:%02d:%lfZ",
&year, &month, &day, &hours, &minutes, &seconds );
if ( n == 6 )
{
fix = 0;
}
else
{
// 2001-01-01T12:30:00+03:30
n = sscanf( aDT.getStr(),
"%04d-%02d-%02dT%02d:%02d:%lf+%02d:%02d",
&year, &month, &day, &hours, &minutes, &seconds,
&off_hours, &off_minutes );
if ( n == 8 )
{
fix = - off_hours * 3600 - off_minutes * 60;
}
else
{
// 2001-01-01T12:30:00-03:30
n = sscanf( aDT.getStr(),
"%04d-%02d-%02dT%02d:%02d:%lf-%02d:%02d",
&year, &month, &day, &hours, &minutes, &seconds,
&off_hours, &off_minutes );
if ( n == 8 )
{
fix = off_hours * 3600 + off_minutes * 60;
}
else
{
return false;
}
}
}
// Convert to local time...
oslDateTime aDateTime;
aDateTime.NanoSeconds = 0;
aDateTime.Seconds = sal::static_int_cast< sal_uInt16 >(seconds);
// 0-59
aDateTime.Minutes = sal::static_int_cast< sal_uInt16 >(minutes);
// 0-59
aDateTime.Hours = sal::static_int_cast< sal_uInt16 >(hours);
// 0-23
aDateTime.Day = sal::static_int_cast< sal_uInt16 >(day);
// 1-31
aDateTime.DayOfWeek = 0;
// 0-6, 0 = Sunday
aDateTime.Month = sal::static_int_cast< sal_uInt16 >(month);
// 1-12
aDateTime.Year = sal::static_int_cast< sal_Int16 >(year);
TimeValue aTimeValue;
if ( osl_getTimeValueFromDateTime( &aDateTime, &aTimeValue ) )
{
aTimeValue.Seconds += fix;
if ( osl_getLocalTimeFromSystemTime( &aTimeValue, &aTimeValue ) )
{
if ( osl_getDateTimeFromTimeValue( &aTimeValue, &aDateTime ) )
{
dateTime.Year = aDateTime.Year;
dateTime.Month = aDateTime.Month;
dateTime.Day = aDateTime.Day;
dateTime.Hours = aDateTime.Hours;
dateTime.Minutes = aDateTime.Minutes;
dateTime.Seconds = aDateTime.Seconds;
return true;
}
}
}
return false;
}
/*
sal_Int32 DateTimeHelper::convertDayToInt (const OUString& day)
{
if (day.equalsAscii("Sun"))
return 0;
else if (day.equalsAscii("Mon"))
return 1;
else if (day.equalsAscii("Tue"))
return 2;
else if (day.equalsAscii("Wed"))
return 3;
else if (day.equalsAscii("Thu"))
return 4;
else if (day.equalsAscii("Fri"))
return 5;
else if (day.equalsAscii("Sat"))
return 6;
else
return -1;
}
*/
sal_Int32 DateTimeHelper::convertMonthToInt(std::u16string_view month)
{
if (month == u
"Jan")
return 1;
else if (month == u
"Feb")
return 2;
else if (month == u
"Mar")
return 3;
else if (month == u
"Apr")
return 4;
else if (month == u
"May")
return 5;
else if (month == u
"Jun")
return 6;
else if (month == u
"Jul")
return 7;
else if (month == u
"Aug")
return 8;
else if (month == u
"Sep")
return 9;
else if (month == u
"Oct")
return 10;
else if (month == u
"Nov")
return 11;
else if (month == u
"Dec")
return 12;
else
return 0;
}
bool DateTimeHelper::RFC2068_To_DateTime (std::u16string_view s,
DateTime& dateTime)
{
int year;
int day;
int hours;
int minutes;
int seconds;
char string_month[3 + 1];
char string_day[3 + 1];
bool res =
false;
if (s.find(
',') != std::u16string_view::npos)
{
OString aDT = OUStringToOString(s, RTL_TEXTENCODING_ASCII_US);
// RFC 1123
int found = sscanf(aDT.getStr(),
"%3s, %2d %3s %4d %2d:%2d:%2d GMT",
string_day, &day, string_month, &year, &hours, &minutes, &seconds);
if (found != 7)
{
// RFC 1036
found = sscanf (aDT.getStr(),
"%3s, %2d-%3s-%2d %2d:%2d:%2d GMT",
string_day, &day, string_month, &year, &hours, &minutes, &seconds);
}
res = found == 7;
}
else
{
OString aDT = OUStringToOString(s, RTL_TEXTENCODING_ASCII_US);
// ANSI C's asctime () format
int found = sscanf(aDT.getStr(),
"%3s %3s %d %2d:%2d:%2d %4d",
string_day, string_month,
&day, &hours, &minutes, &seconds, &year);
res = found == 7;
}
if (res)
{
res =
false;
int month = DateTimeHelper::convertMonthToInt (
OUString::createFromAscii (string_month));
if (month)
{
// Convert to local time...
oslDateTime aDateTime;
aDateTime.NanoSeconds = 0;
aDateTime.Seconds = sal::static_int_cast< sal_uInt16 >(seconds);
// 0-59
aDateTime.Minutes = sal::static_int_cast< sal_uInt16 >(minutes);
// 0-59
aDateTime.Hours = sal::static_int_cast< sal_uInt16 >(hours);
// 0-23
aDateTime.Day = sal::static_int_cast< sal_uInt16 >(day);
// 1-31
aDateTime.DayOfWeek = 0;
//dayofweek; // 0-6, 0 = Sunday
aDateTime.Month = sal::static_int_cast< sal_uInt16 >(month);
// 1-12
aDateTime.Year = sal::static_int_cast< sal_Int16 >(year);
TimeValue aTimeValue;
if ( osl_getTimeValueFromDateTime( &aDateTime,
&aTimeValue ) )
{
if ( osl_getLocalTimeFromSystemTime( &aTimeValue,
&aTimeValue ) )
{
if ( osl_getDateTimeFromTimeValue( &aTimeValue,
&aDateTime ) )
{
dateTime.Year = aDateTime.Year;
dateTime.Month = aDateTime.Month;
dateTime.Day = aDateTime.Day;
dateTime.Hours = aDateTime.Hours;
dateTime.Minutes = aDateTime.Minutes;
dateTime.Seconds = aDateTime.Seconds;
res =
true;
}
}
}
}
}
return res;
}
bool DateTimeHelper::convert (std::u16string_view s, DateTime& dateTime)
{
if (ISO8601_To_DateTime (s, dateTime))
return true;
else if (RFC2068_To_DateTime (s, dateTime))
return true;
else
return false;
}
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