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oc-calendar: Fix import in SOGo exceptions from recurring series

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According to [MS-OXICAL] Section 2.1.3.1.1.20.13, the EXDATE property
must be written only if there are ocurrences from the series that have
been deleted and before this commit ModifiedInstanceDates were also
included.

We check against every ExceptionInfo from exception ocurrences of the series
to know if the ocurrence was deleted or only modified.
This commit is contained in:
Enrique J. Hernández Blasco
2015-03-06 13:23:17 +01:00
committed by Julio García
parent 3b0b43f28f
commit 6f44ec42c1
4 changed files with 53 additions and 30 deletions
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63
OpenChange/MAPIStoreRecurrenceUtils.m
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@@ -24,6 +24,7 @@
#import <Foundation/NSCalendarDate.h>
#import <Foundation/NSSet.h>
#import <Foundation/NSString.h>
#import <Foundation/NSTimeZone.h>
#import <NGExtensions/NSCalendarDate+misc.h>
#import <NGExtensions/NSObject+Logs.h>
@@ -48,6 +49,10 @@
- (void) setupRecurrenceWithMasterEntity: (iCalRepeatableEntityObject *) entity
fromRecurrencePattern: (struct RecurrencePattern *) rp
withExceptions: (struct ExceptionInfo *) exInfos
andExceptionCount: (uint16_t) exInfoCount
inTimeZone: (NSTimeZone *) tz
{
NSCalendarDate *startDate, *olEndDate, *untilDate, *exDate;
NSString *monthDay, *month;
@@ -214,34 +219,42 @@
/* exception dates:
- take all deleted instances
- remove all modified instances from the above set
- remove all modified instances available in ExceptionInfo from the above set
- add remaining instances, in chronological order
*/
exceptionDates = [NSMutableSet set];
for (count = 0; count < rp->DeletedInstanceCount; count++)
{
exDate
= [NSDate dateFromMinutesSince1601: rp->DeletedInstanceDates[count]];
exDate = [exDate hour: [startDate hourOfDay]
minute: [startDate minuteOfHour]
second: [startDate secondOfMinute]];
[exceptionDates addObject: exDate];
}
for (count = 0; count < rp->ModifiedInstanceCount; count++)
{
exDate
= [NSDate dateFromMinutesSince1601: rp->ModifiedInstanceDates[count]];
exDate = [exDate hour: [startDate hourOfDay]
minute: [startDate minuteOfHour]
second: [startDate secondOfMinute]];
[exceptionDates removeObject: exDate];
}
realExDates = [[exceptionDates allObjects]
sortedArrayUsingSelector: @selector (compare:)];
max = [realExDates count];
for (count = 0; count < max; count++)
[entity addToExceptionDates: [realExDates objectAtIndex: count]];
/* Heuristic to avoid these loops */
if (rp->DeletedInstanceCount != rp->ModifiedInstanceCount) {
exceptionDates = [NSMutableSet set];
for (count = 0; count < rp->DeletedInstanceCount; count++)
{
exDate
= [NSDate dateFromMinutesSince1601: rp->DeletedInstanceDates[count]];
exDate = [exDate hour: [startDate hourOfDay]
minute: [startDate minuteOfHour]
second: [startDate secondOfMinute]];
[exceptionDates addObject: exDate];
}
/* Read the exceptions to remove the instances that are modified and not deleted */
if (exInfos && exInfoCount > 0)
{
for (count = 0; count < exInfoCount; count++)
{
/* The OriginalStartDate is in local time */
exDate = [NSDate dateFromMinutesSince1601: exInfos[count].OriginalStartDate];
exDate = [exDate dateByAddingYears: 0 months: 0 days: 0
hours: 0 minutes: 0
seconds: - [tz secondsFromGMT]];
[exceptionDates removeObject: exDate];
}
}
realExDates = [[exceptionDates allObjects]
sortedArrayUsingSelector: @selector (compare:)];
max = [realExDates count];
for (count = 0; count < max; count++)
[entity addToExceptionDates: [realExDates objectAtIndex: count]];
}
}
@end