ucb/source/ucp/webdav/DateTimeHelper.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <osl/time.h>
  21 #include <com/sun/star/util/DateTime.hpp>
  22 #include "DateTimeHelper.hxx"
  23
  24 using namespace com::sun::star::util;
  25
  26 using namespace http_dav_ucp;
  27
  28 bool DateTimeHelper::ISO8601_To_DateTime (const OUString& s,
  29     DateTime& dateTime)
  30 {
  31     OString aDT (s.getStr(), s.getLength(), RTL_TEXTENCODING_ASCII_US);
  32
  33     int year, month, day, hours, minutes, off_hours, off_minutes, fix;
  34     double seconds;
  35
  36     // 2001-01-01T12:30:00Z
  37     int n = sscanf( aDT.getStr(), "%04d-%02d-%02dT%02d:%02d:%lfZ",
  38                     &year, &month, &day, &hours, &minutes, &seconds );
  39     if ( n == 6 )
  40     {
  41         fix = 0;
  42     }
  43     else
  44     {
  45         // 2001-01-01T12:30:00+03:30
  46         n = sscanf( aDT.getStr(), "%04d-%02d-%02dT%02d:%02d:%lf+%02d:%02d",
  47                     &year, &month, &day, &hours, &minutes, &seconds,
  48                     &off_hours, &off_minutes );
  49         if ( n == 8 )
  50         {
  51             fix = - off_hours * 3600 - off_minutes * 60;
  52         }
  53         else
  54         {
  55             // 2001-01-01T12:30:00-03:30
  56             n = sscanf( aDT.getStr(), "%04d-%02d-%02dT%02d:%02d:%lf-%02d:%02d",
  57                         &year, &month, &day, &hours, &minutes, &seconds,
  58                         &off_hours, &off_minutes );
  59             if ( n == 8 )
  60             {
  61                 fix = off_hours * 3600 + off_minutes * 60;
  62             }
  63             else
  64             {
  65                 return false;
  66             }
  67         }
  68     }
  69
  70     // Convert to local time...
  71
  72     oslDateTime aDateTime;
  73     aDateTime.NanoSeconds = 0;
  74     aDateTime.Seconds     = sal::static_int_cast< sal_uInt16 >(seconds); // 0-59
  75     aDateTime.Minutes     = sal::static_int_cast< sal_uInt16 >(minutes); // 0-59
  76     aDateTime.Hours       = sal::static_int_cast< sal_uInt16 >(hours); // 0-23
  77     aDateTime.Day         = sal::static_int_cast< sal_uInt16 >(day); // 1-31
  78     aDateTime.DayOfWeek   = 0;          // 0-6, 0 = Sunday
  79     aDateTime.Month       = sal::static_int_cast< sal_uInt16 >(month); // 1-12
  80     aDateTime.Year        = sal::static_int_cast< sal_Int16  >(year);
  81
  82     TimeValue aTimeValue;
  83     if ( osl_getTimeValueFromDateTime( &aDateTime, &aTimeValue ) )
  84     {
  85         aTimeValue.Seconds += fix;
  86
  87         if ( osl_getLocalTimeFromSystemTime( &aTimeValue, &aTimeValue ) )
  88         {
  89             if ( osl_getDateTimeFromTimeValue( &aTimeValue, &aDateTime ) )
  90             {
  91                 dateTime.Year    = aDateTime.Year;
  92                 dateTime.Month   = aDateTime.Month;
  93                 dateTime.Day     = aDateTime.Day;
  94                 dateTime.Hours   = aDateTime.Hours;
  95                 dateTime.Minutes = aDateTime.Minutes;
  96                 dateTime.Seconds = aDateTime.Seconds;
  97
  98                 return true;
  99              }
 100         }
 101     }
 102
 103     return false;
 104 }
 105
 106 /*
 107 sal_Int32 DateTimeHelper::convertDayToInt (const OUString& day)
 108 {
 109     if (day.equalsAscii("Sun"))
 110         return 0;
 111     else if (day.equalsAscii("Mon"))
 112         return 1;
 113     else if (day.equalsAscii("Tue"))
 114         return 2;
 115     else if (day.equalsAscii("Wed"))
 116         return 3;
 117     else if (day.equalsAscii("Thu"))
 118         return 4;
 119     else if (day.equalsAscii("Fri"))
 120         return 5;
 121     else if (day.equalsAscii("Sat"))
 122         return 6;
 123     else
 124         return -1;
 125 }
 126 */
 127
 128 sal_Int32 DateTimeHelper::convertMonthToInt (const OUString& month)
 129 {
 130     if (month.equalsAscii("Jan"))
 131         return 1;
 132     else if (month.equalsAscii("Feb"))
 133         return 2;
 134     else if (month.equalsAscii("Mar"))
 135         return 3;
 136     else if (month.equalsAscii("Apr"))
 137         return 4;
 138     else if (month.equalsAscii("May"))
 139         return 5;
 140     else if (month.equalsAscii("Jun"))
 141         return 6;
 142     else if (month.equalsAscii("Jul"))
 143         return 7;
 144     else if (month.equalsAscii("Aug"))
 145         return 8;
 146     else if (month.equalsAscii("Sep"))
 147         return 9;
 148     else if (month.equalsAscii("Oct"))
 149         return 10;
 150     else if (month.equalsAscii("Nov"))
 151         return 11;
 152     else if (month.equalsAscii("Dec"))
 153         return 12;
 154     else
 155         return 0;
 156 }
 157
 158 bool DateTimeHelper::RFC2068_To_DateTime (const OUString& s,
 159     DateTime& dateTime)
 160 {
 161     int year;
 162     int day;
 163     int hours;
 164     int minutes;
 165     int seconds;
 166     sal_Char string_month[3 + 1];
 167     sal_Char string_day[3 + 1];
 168
 169     sal_Int32 found = s.indexOf (',');
 170     if (found != -1)
 171     {
 172         OString aDT (s.getStr(), s.getLength(), RTL_TEXTENCODING_ASCII_US);
 173
 174         // RFC 1123
 175         found = sscanf (aDT.getStr(), "%3s, %2d %3s %4d %2d:%2d:%2d GMT",
 176                         string_day, &day, string_month, &year, &hours, &minutes, &seconds);
 177         if (found != 7)
 178         {
 179             // RFC 1036
 180             found = sscanf (aDT.getStr(), "%3s, %2d-%3s-%2d %2d:%2d:%2d GMT",
 181                             string_day, &day, string_month, &year, &hours, &minutes, &seconds);
 182         }
 183         found = (found == 7) ? 1 : 0;
 184     }
 185     else
 186     {
 187         OString aDT (s.getStr(), s.getLength(), RTL_TEXTENCODING_ASCII_US);
 188
 189         // ANSI C's asctime () format
 190         found = sscanf (aDT.getStr(), "%3s %3s %d %2d:%2d:%2d %4d",
 191                         string_day, string_month,
 192                         &day, &hours, &minutes, &seconds, &year);
 193         found = (found == 7) ? 1 : 0;
 194     }
 195
 196     if (found)
 197     {
 198         found = 0;
 199
 200         int month = DateTimeHelper::convertMonthToInt (
 201                             OUString::createFromAscii (string_month));
 202         if (month)
 203         {
 204             // Convert to local time...
 205
 206             oslDateTime aDateTime;
 207             aDateTime.NanoSeconds = 0;
 208             aDateTime.Seconds     = sal::static_int_cast< sal_uInt16 >(seconds);
 209                 // 0-59
 210             aDateTime.Minutes     = sal::static_int_cast< sal_uInt16 >(minutes);
 211                 // 0-59
 212             aDateTime.Hours       = sal::static_int_cast< sal_uInt16 >(hours);
 213                 // 0-23
 214             aDateTime.Day         = sal::static_int_cast< sal_uInt16 >(day);
 215                 // 1-31
 216             aDateTime.DayOfWeek   = 0; //dayofweek;  // 0-6, 0 = Sunday
 217             aDateTime.Month       = sal::static_int_cast< sal_uInt16 >(month);
 218                 // 1-12
 219             aDateTime.Year        = sal::static_int_cast< sal_Int16  >(year);
 220
 221             TimeValue aTimeValue;
 222             if ( osl_getTimeValueFromDateTime( &aDateTime,
 223                                                 &aTimeValue ) )
 224             {
 225                 if ( osl_getLocalTimeFromSystemTime( &aTimeValue,
 226                                                         &aTimeValue ) )
 227                 {
 228                     if ( osl_getDateTimeFromTimeValue( &aTimeValue,
 229                                                         &aDateTime ) )
 230                     {
 231                         dateTime.Year    = aDateTime.Year;
 232                         dateTime.Month   = aDateTime.Month;
 233                         dateTime.Day     = aDateTime.Day;
 234                         dateTime.Hours   = aDateTime.Hours;
 235                         dateTime.Minutes = aDateTime.Minutes;
 236                         dateTime.Seconds = aDateTime.Seconds;
 237
 238                         found = 1;
 239                     }
 240                 }
 241             }
 242         }
 243     }
 244
 245     return (found) ? true : false;
 246 }
 247
 248 bool DateTimeHelper::convert (const OUString& s, DateTime& dateTime)
 249 {
 250     if (ISO8601_To_DateTime (s, dateTime))
 251         return true;
 252     else if (RFC2068_To_DateTime (s, dateTime))
 253         return true;
 254     else
 255         return false;
 256 }
 257
 258 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */