2011-05-30 23:12:56 +02:00
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/* NSDate+MAPIStore.m - this file is part of SOGo
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2010-10-01 20:54:30 +02:00
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*
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2012-08-17 21:04:57 +02:00
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* Copyright (C) 2010-2012 Inverse inc.
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2010-10-01 20:54:30 +02:00
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*
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* Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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2010-10-18 14:57:31 +02:00
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* the Free Software Foundation; either version 3, or (at your option)
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2010-10-01 20:54:30 +02:00
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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2016-02-17 16:09:18 +01:00
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#import <Foundation/NSCalendarDate.h>
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#import <Foundation/NSString.h>
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#import <Foundation/NSTimeZone.h>
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2010-10-01 20:54:30 +02:00
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2016-02-17 16:09:18 +01:00
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#import "MAPIStoreTypes.h"
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2011-05-30 23:12:56 +02:00
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#import "NSDate+MAPIStore.h"
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2010-10-01 20:54:30 +02:00
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#undef DEBUG
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2016-02-17 16:09:18 +01:00
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#include <stdbool.h>
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#include <talloc.h>
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#include <util/time.h>
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#include <mapistore/mapistore.h>
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2010-10-01 20:54:30 +02:00
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2010-11-19 21:55:51 +01:00
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static NSCalendarDate *refDate = nil;
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2010-11-06 00:21:09 +01:00
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2011-05-30 23:12:56 +02:00
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@interface NSDate (MAPIStorePossibleMethods)
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- (NSTimeZone *) timeZone;
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@end
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@implementation NSDate (MAPIStoreDataTypes)
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2010-11-06 00:21:09 +01:00
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static void
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2011-03-22 22:22:34 +01:00
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_setupRefDate ()
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2010-11-06 00:21:09 +01:00
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{
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2011-03-22 22:22:34 +01:00
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refDate = [[NSCalendarDate alloc]
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initWithYear: 1601 month: 1 day: 1
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hour: 0 minute: 0 second: 0
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2015-12-30 15:22:08 +01:00
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timeZone: utcTZ];
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2010-11-06 00:21:09 +01:00
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}
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2012-07-01 22:55:54 +02:00
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+ (NSCalendarDate *) dateFromMinutesSince1601: (uint32_t) minutes
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2011-03-21 01:42:23 +01:00
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{
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NSCalendarDate *result;
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if (!refDate)
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_setupRefDate ();
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result = [refDate dateByAddingYears: 0 months: 0 days: 0 hours: 0
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minutes: minutes seconds: 0];
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return result;
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}
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2011-03-22 22:22:34 +01:00
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- (uint32_t) asMinutesSince1601
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{
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uint32_t minutes;
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NSInteger offset;
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if (!refDate)
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_setupRefDate ();
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2011-05-30 23:12:56 +02:00
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if ([self respondsToSelector: @selector (timeZone)])
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offset = [[self timeZone] secondsFromGMT];
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else
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offset = 0;
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minutes = (uint32_t) (([self timeIntervalSinceDate: refDate] + offset) / 60);
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2011-03-22 22:22:34 +01:00
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return minutes;
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}
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2010-11-19 21:55:51 +01:00
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+ (id) dateFromFileTime: (const struct FILETIME *) timeValue
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2010-11-06 00:21:09 +01:00
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{
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2010-11-19 21:55:51 +01:00
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NSCalendarDate *result;
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2010-11-06 00:21:09 +01:00
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uint64_t interval;
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if (!refDate)
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_setupRefDate ();
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interval = ((uint64_t) timeValue->dwHighDateTime << 32
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| timeValue->dwLowDateTime);
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2010-11-19 21:55:51 +01:00
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result = [[NSCalendarDate alloc]
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2010-11-06 00:21:09 +01:00
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initWithTimeInterval: (NSTimeInterval) interval / 10000000
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sinceDate: refDate];
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[result autorelease];
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return result;
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}
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2010-10-01 20:54:30 +02:00
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- (struct FILETIME *) asFileTimeInMemCtx: (void *) memCtx
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{
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struct FILETIME *timeValue;
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uint64_t interval;
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2010-10-01 22:35:29 +02:00
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if (!refDate)
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2010-11-06 00:21:09 +01:00
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_setupRefDate ();
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2010-10-01 20:54:30 +02:00
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interval = (((uint64_t) [self timeIntervalSinceDate: refDate]) * 10000000);
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2010-11-06 00:21:09 +01:00
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timeValue = talloc_zero (memCtx, struct FILETIME);
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2010-10-01 20:54:30 +02:00
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timeValue->dwLowDateTime = (uint32_t) (interval & 0xffffffff);
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timeValue->dwHighDateTime = (uint32_t) ((interval >> 32) & 0xffffffff);
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return timeValue;
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}
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2012-03-20 19:47:05 +01:00
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- (BOOL) isNever /* occurs on 4500-12-31 */
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{
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NSCalendarDate *calDate;
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if ([self isKindOfClass: [NSCalendarDate class]])
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calDate = (NSCalendarDate *) self;
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else
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calDate = [NSCalendarDate dateWithTimeIntervalSince1970:
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[self timeIntervalSince1970]];
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return [calDate yearOfCommonEra] == 4500;
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}
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2015-12-30 15:22:08 +01:00
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+ (NSCalendarDate *) dateFromSystemTime: (struct SYSTEMTIME) date
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andRuleYear: (uint16_t) rYear
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{
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NSCalendarDate *result;
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NSInteger daysToDate;
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NSUInteger firstDayOfWeek, year;
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/* ([MS-OXOCAL] 2.2.1.41.1) When we're provided an absolute date (i.e., it
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happens once), the SYSTEMTIME structure is enough to fill the date.
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When we're parsing a SYSTEMTIME field from a time zone rule, however, a
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relative date can be provided for the peroidicity of its periods. In this
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scenario, the wYear field is empty and we have to use the wYear field in
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the parent rule */
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if (date.wYear != 0)
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year = date.wYear;
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else
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year = rYear;
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/* The wDay field indicates the occurrence of the wDayOfWeek within the month.
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The 5th occurrence means the last one, even if it is the 4th. */
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if (date.wDay < 5)
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{
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result = [[NSCalendarDate alloc] initWithYear: year month: date.wMonth day: 1
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hour: date.wHour minute: date.wMinute second: date.wSecond
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timeZone: utcTZ];
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[result autorelease];
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firstDayOfWeek = [result dayOfWeek];
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daysToDate = 7 * (date.wDay - 1) + date.wDayOfWeek - firstDayOfWeek;
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if (date.wDayOfWeek < firstDayOfWeek)
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daysToDate += 7;
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result = [result dateByAddingYears: 0 months: 0 days: daysToDate
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hours: 0 minutes: 0
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seconds: 0];
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}
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else
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{
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result = [[NSCalendarDate alloc] initWithYear: year month: date.wMonth + 1 day: 1
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hour: date.wHour minute: date.wMinute second: date.wSecond
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timeZone: utcTZ];
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[result autorelease];
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firstDayOfWeek = [result dayOfWeek];
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daysToDate = date.wDayOfWeek - firstDayOfWeek;
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if (date.wDayOfWeek >= firstDayOfWeek)
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daysToDate -= 7;
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result = [result dateByAddingYears: 0 months: 0 days: daysToDate
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hours: 0 minutes: 0
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seconds: 0];
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}
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return result;
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}
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2010-10-01 20:54:30 +02:00
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@end
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2012-07-01 22:55:54 +02:00
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NSComparisonResult
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2012-07-02 00:31:05 +02:00
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NSDateCompare (id date1, id date2, void *ctx)
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2012-07-01 22:55:54 +02:00
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{
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NSTimeInterval secs1, secs2;
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NSComparisonResult result;
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secs1 = [date1 timeIntervalSince1970];
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secs2 = [date2 timeIntervalSince1970];
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if (secs1 == secs2)
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result = NSOrderedSame;
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else if (secs1 < secs2)
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result = NSOrderedAscending;
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else
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result = NSOrderedDescending;
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return result;
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}
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