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+/* -*- 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 (const OUString& s,
+ DateTime& dateTime)
+{
+ OString aDT (s.getStr(), s.getLength(), 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 (const OUString& s,
+ DateTime& dateTime)
+{
+ int year;
+ int day;
+ int hours;
+ int minutes;
+ int seconds;
+ char string_month[3 + 1];
+ char string_day[3 + 1];
+
+ sal_Int32 found = s.indexOf (',');
+ if (found != -1)
+ {
+ OString aDT (s.getStr(), s.getLength(), RTL_TEXTENCODING_ASCII_US);
+
+ // RFC 1123
+ 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);
+ }
+ found = (found == 7) ? 1 : 0;
+ }
+ else
+ {
+ OString aDT (s.getStr(), s.getLength(), RTL_TEXTENCODING_ASCII_US);
+
+ // ANSI C's asctime () format
+ found = sscanf (aDT.getStr(), "%3s %3s %d %2d:%2d:%2d %4d",
+ string_day, string_month,
+ &day, &hours, &minutes, &seconds, &year);
+ found = (found == 7) ? 1 : 0;
+ }
+
+ if (found)
+ {
+ found = 0;
+
+ 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;
+
+ found = 1;
+ }
+ }
+ }
+ }
+ }
+
+ return found;
+}
+
+bool DateTimeHelper::convert (const OUString& s, DateTime& dateTime)
+{
+ if (ISO8601_To_DateTime (s, dateTime))
+ return true;
+ else if (RFC2068_To_DateTime (s, dateTime))
+ return true;
+ else
+ return false;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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