/
SOGoAppointmentObject.m
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SOGoAppointmentObject.m
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/*
Copyright (C) 2007-2016 Inverse inc.
This file is part of SOGo
SOGo is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
SOGo is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with OGo; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
#import <Foundation/NSCalendarDate.h>
#import <Foundation/NSTimeZone.h>
#import <Foundation/NSValue.h>
#import <NGObjWeb/NSException+HTTP.h>
#import <NGObjWeb/WOContext+SoObjects.h>
#import <NGObjWeb/WOResponse.h>
#import <NGExtensions/NGCalendarDateRange.h>
#import <NGExtensions/NSNull+misc.h>
#import <NGExtensions/NSObject+Logs.h>
#import <NGCards/iCalDateTime.h>
#import <NGCards/iCalEvent.h>
#import <NGCards/iCalToDo.h>
#import <NGCards/NSCalendarDate+NGCards.h>
#import <SaxObjC/XMLNamespaces.h>
#import <NGCards/iCalDateTime.h>
#import <NGCards/iCalTimeZone.h>
#import <NGCards/iCalTimeZonePeriod.h>
#import <NGCards/iCalToDo.h>
#import <NGCards/NSString+NGCards.h>
#import <SOGo/NSArray+Utilities.h>
#import <SOGo/NSDictionary+Utilities.h>
#import <SOGo/NSObject+DAV.h>
#import <SOGo/NSString+Utilities.h>
#import <SOGo/SOGoDateFormatter.h>
#import <SOGo/SOGoGroup.h>
#import <SOGo/SOGoUser.h>
#import <SOGo/SOGoUserSettings.h>
#import <SOGo/SOGoDomainDefaults.h>
#import <SOGo/WORequest+SOGo.h>
#import "iCalCalendar+SOGo.h"
#import "iCalEventChanges+SOGo.h"
#import "iCalEntityObject+SOGo.h"
#import "iCalPerson+SOGo.h"
#import "NSArray+Appointments.h"
#import "SOGoAppointmentFolder.h"
#import "SOGoAppointmentOccurence.h"
#import "SOGoAppointmentObject.h"
@implementation SOGoAppointmentObject
- (NSString *) componentTag
{
return @"vevent";
}
- (SOGoComponentOccurence *) occurence: (iCalRepeatableEntityObject *) occ
{
NSArray *allEvents;
allEvents = [[occ parent] events];
return [SOGoAppointmentOccurence
occurenceWithComponent: occ
withMasterComponent: [allEvents objectAtIndex: 0]
inContainer: self];
}
/**
* Return a new exception in the recurrent event.
* @param theRecurrenceID the ID of the occurence.
* @return a new occurence.
*/
- (iCalRepeatableEntityObject *) newOccurenceWithID: (NSString *) theRecurrenceID
{
iCalEvent *newOccurence, *master;
NSCalendarDate *date, *firstDate;
unsigned int interval, nbrDays;
newOccurence = (iCalEvent *) [super newOccurenceWithID: theRecurrenceID];
date = [newOccurence recurrenceId];
master = [self component: NO secure: NO];
firstDate = [master startDate];
interval = [[master endDate]
timeIntervalSinceDate: firstDate];
if ([newOccurence isAllDay])
{
nbrDays = ((float) abs (interval) / 86400);
[newOccurence setAllDayWithStartDate: date
duration: nbrDays];
}
else
{
[newOccurence setStartDate: date];
[newOccurence setEndDate: [date addYear: 0
month: 0
day: 0
hour: 0
minute: 0
second: interval]];
}
return newOccurence;
}
- (iCalRepeatableEntityObject *) lookupOccurrence: (NSString *) recID
{
return [[self calendar: NO secure: NO] eventWithRecurrenceID: recID];
}
- (SOGoAppointmentObject *) _lookupEvent: (NSString *) eventUID
forUID: (NSString *) uid
{
SOGoAppointmentFolder *folder;
SOGoAppointmentObject *object;
NSArray *folders;
NSEnumerator *e;
NSString *possibleName;
object = nil;
folders = [container lookupCalendarFoldersForUID: uid];
e = [folders objectEnumerator];
while ( object == nil && (folder = [e nextObject]) )
{
object = [folder lookupName: nameInContainer
inContext: context
acquire: NO];
if ([object isKindOfClass: [NSException class]] || [object isNew])
{
possibleName = [folder resourceNameForEventUID: eventUID];
if (possibleName)
{
object = [folder lookupName: possibleName
inContext: context acquire: NO];
if ([object isKindOfClass: [NSException class]] || [object isNew])
object = nil;
}
else
object = nil;
}
}
if (!object)
{
// Create the event in the user's personal calendar.
folder = [[SOGoUser userWithLogin: uid]
personalCalendarFolderInContext: context];
object = [SOGoAppointmentObject objectWithName: nameInContainer
inContainer: folder];
[object setIsNew: YES];
}
return object;
}
//
// This method will *ONLY* add or update event information in attendees' calendars.
// It will NOT touch to the organizer calendar in anyway. This method is meant
// to reflect changes in attendees' calendars when the organizer makes changes
// to the event.
//
- (void) _addOrUpdateEvent: (iCalEvent *) newEvent
oldEvent: (iCalEvent *) oldEvent
forUID: (NSString *) theUID
owner: (NSString *) theOwner
{
if (![theUID isEqualToString: theOwner])
{
SOGoAppointmentObject *attendeeObject;
iCalCalendar *iCalendarToSave;
iCalendarToSave = nil;
attendeeObject = [self _lookupEvent: [newEvent uid] forUID: theUID];
if ([newEvent recurrenceId])
{
// We must add an occurence to a non-existing event.
if ([attendeeObject isNew])
{
iCalEvent *ownerEvent;
SOGoUser *user;
// We check if the attendee that was added to a single occurence is
// present in the master component. If not, we add it with a participation
// status set to "DECLINED".
ownerEvent = [[[newEvent parent] events] objectAtIndex: 0];
user = [SOGoUser userWithLogin: theUID];
if (![ownerEvent userAsAttendee: user])
{
iCalendarToSave = [[[newEvent parent] mutableCopy] autorelease];
[iCalendarToSave removeChildren: [iCalendarToSave childrenWithTag: @"vevent"]];
[iCalendarToSave addChild: [[newEvent copy] autorelease]];
}
}
else
{
// Only update this occurrence in attendee's calendar
// TODO : when updating the master event, handle exception dates
// in attendee's calendar (add exception dates and remove matching
// occurrences) -- see _updateRecurrenceIDsWithEvent:
NSCalendarDate *currentId;
NSArray *occurences;
iCalEvent *occurence;
int max, count;
iCalendarToSave = [attendeeObject calendar: NO secure: NO];
// If recurrenceId is defined, remove the occurence from
// the repeating event. If a recurrenceId is defined in the
// new event, let's make sure we don't already have one in
// the calendar alright. If so, also remove it.
if ([oldEvent recurrenceId] || [newEvent recurrenceId])
{
// FIXME: use _eventFromRecurrenceId:...
occurences = [iCalendarToSave events];
max = [occurences count];
count = 0;
while (count < max)
{
occurence = [occurences objectAtIndex: count];
currentId = ([oldEvent recurrenceId] ? [oldEvent recurrenceId]: [newEvent recurrenceId]);
if (currentId && [[occurence recurrenceId] compare: currentId] == NSOrderedSame)
{
[[iCalendarToSave children] removeObject: occurence];
break;
}
count++;
}
}
[iCalendarToSave addChild: [[newEvent copy] autorelease]];
}
}
else
{
iCalendarToSave = [newEvent parent];
}
// Save the event in the attendee's calendar
if (iCalendarToSave)
[attendeeObject saveCalendar: iCalendarToSave];
}
}
//
// This method will *ONLY* delete event information in attendees' calendars.
// It will NOT touch to the organizer calendar in anyway. This method is meant
// to reflect changes in attendees' calendars when the organizer makes changes
// to the event.
//
- (void) _removeEventFromUID: (NSString *) theUID
owner: (NSString *) theOwner
withRecurrenceId: (NSCalendarDate *) recurrenceId
{
if (![theUID isEqualToString: theOwner])
{
SOGoAppointmentFolder *folder;
SOGoAppointmentObject *object;
iCalEntityObject *currentOccurence;
iCalRepeatableEntityObject *event;
iCalCalendar *calendar;
NSCalendarDate *currentId;
NSArray *occurences;
int max, count;
// Invitations are always written to the personal folder; it's not necessay
// to look into all folders of the user
// FIXME: why look only in the personal calendar here?
folder = [[SOGoUser userWithLogin: theUID]
personalCalendarFolderInContext: context];
object = [folder lookupName: nameInContainer
inContext: context
acquire: NO];
if (![object isKindOfClass: [NSException class]])
{
if (recurrenceId == nil)
[object delete];
else
{
calendar = [object calendar: NO secure: NO];
// If recurrenceId is defined, remove the occurence from
// the repeating event.
occurences = [calendar events];
max = [occurences count];
count = 0;
while (count < max)
{
currentOccurence = [occurences objectAtIndex: count];
currentId = [currentOccurence recurrenceId];
if ([currentId compare: recurrenceId] == NSOrderedSame)
{
[[calendar children] removeObject: currentOccurence];
break;
}
count++;
}
// Add an date exception.
event = (iCalRepeatableEntityObject*)[calendar firstChildWithTag: [object componentTag]];
[event addToExceptionDates: recurrenceId];
[event increaseSequence];
// We save the updated iCalendar in the database.
[object saveCalendar: calendar];
}
}
else
[self errorWithFormat: @"Unable to find event with UID %@ in %@'s calendar - skipping delete operation", nameInContainer, theUID];
}
}
//
//
//
- (void) _handleRemovedUsers: (NSArray *) attendees
withRecurrenceId: (NSCalendarDate *) recurrenceId
{
NSEnumerator *enumerator;
iCalPerson *currentAttendee;
NSString *currentUID;
enumerator = [attendees objectEnumerator];
while ((currentAttendee = [enumerator nextObject]))
{
currentUID = [currentAttendee uidInContext: context];
if (currentUID)
[self _removeEventFromUID: currentUID
owner: owner
withRecurrenceId: recurrenceId];
}
}
//
//
//
- (void) _removeDelegationChain: (iCalPerson *) delegate
inEvent: (iCalEvent *) event
{
NSString *delegatedTo, *mailTo;
delegatedTo = [delegate delegatedTo];
if ([delegatedTo length] > 0)
{
mailTo = [delegatedTo rfc822Email];
delegate = [event findAttendeeWithEmail: mailTo];
if (delegate)
{
[self _removeDelegationChain: delegate
inEvent: event];
[event removeFromAttendees: delegate];
}
else
[self errorWithFormat:@"broken chain: delegate with email '%@' was not found", mailTo];
}
}
//
// This method returns YES when any attendee has been removed
// and NO otherwise.
//
- (BOOL) _requireResponseFromAttendees: (iCalEvent *) event
{
NSArray *attendees;
iCalPerson *currentAttendee;
BOOL listHasChanged = NO;
int count, max;
attendees = [event attendees];
max = [attendees count];
for (count = 0; count < max; count++)
{
currentAttendee = [attendees objectAtIndex: count];
if ([[currentAttendee delegatedTo] length] > 0)
{
[self _removeDelegationChain: currentAttendee
inEvent: event];
[currentAttendee setDelegatedTo: nil];
listHasChanged = YES;
}
[currentAttendee setRsvp: @"TRUE"];
[currentAttendee setParticipationStatus: iCalPersonPartStatNeedsAction];
}
return listHasChanged;
}
//
//
//
- (BOOL) _shouldScheduleEvent: (iCalPerson *) thePerson
{
//NSArray *userAgents;
NSString *v;
BOOL b;
//int i;
b = YES;
if (thePerson && (v = [thePerson value: 0 ofAttribute: @"SCHEDULE-AGENT"]))
{
if ([v caseInsensitiveCompare: @"NONE"] == NSOrderedSame ||
[v caseInsensitiveCompare: @"CLIENT"] == NSOrderedSame)
b = NO;
}
//
// If we have to deal with Thunderbird/Lightning, we always send invitation
// reponses, as Lightning v2.6 (at least this version) sets SCHEDULE-AGENT
// to NONE/CLIENT when responding to an external invitation received by
// SOGo - so no invitation responses are ever sent by Lightning. See
// https://bugzilla.mozilla.org/show_bug.cgi?id=865726 and
// https://bugzilla.mozilla.org/show_bug.cgi?id=997784
//
// This code has been disabled - see 0003274.
//
#if 0
userAgents = [[context request] headersForKey: @"User-Agent"];
for (i = 0; i < [userAgents count]; i++)
{
if ([[userAgents objectAtIndex: i] rangeOfString: @"Thunderbird"].location != NSNotFound &&
[[userAgents objectAtIndex: i] rangeOfString: @"Lightning"].location != NSNotFound)
{
b = YES;
break;
}
}
#endif
return b;
}
//
//
//
- (void) _handleSequenceUpdateInEvent: (iCalEvent *) newEvent
ignoringAttendees: (NSArray *) attendees
fromOldEvent: (iCalEvent *) oldEvent
{
NSMutableArray *updateAttendees;
NSEnumerator *enumerator;
iCalPerson *currentAttendee;
NSString *currentUID;
updateAttendees = [NSMutableArray arrayWithArray: [newEvent attendees]];
[updateAttendees removeObjectsInArray: attendees];
enumerator = [updateAttendees objectEnumerator];
while ((currentAttendee = [enumerator nextObject]))
{
currentUID = [currentAttendee uidInContext: context];
if (currentUID)
[self _addOrUpdateEvent: newEvent
oldEvent: oldEvent
forUID: currentUID
owner: owner];
}
if ([self _shouldScheduleEvent: [newEvent organizer]])
[self sendEMailUsingTemplateNamed: @"Update"
forObject: [newEvent itipEntryWithMethod: @"request"]
previousObject: oldEvent
toAttendees: updateAttendees
withType: @"calendar:invitation-update"];
}
// This method scans the list of attendees.
- (NSException *) _handleAttendeesAvailability: (NSArray *) theAttendees
forEvent: (iCalEvent *) theEvent
{
iCalPerson *currentAttendee;
SOGoUser *user;
SOGoUserSettings *us;
NSMutableArray *unavailableAttendees;
NSEnumerator *enumerator;
NSString *currentUID, *ownerUID;
NSMutableString *reason;
NSDictionary *values;
NSMutableDictionary *value, *moduleSettings;
id whiteList;
int i, count;
i = count = 0;
// Build list of the attendees uids
unavailableAttendees = [[NSMutableArray alloc] init];
enumerator = [theAttendees objectEnumerator];
ownerUID = [[[self context] activeUser] login];
while ((currentAttendee = [enumerator nextObject]))
{
currentUID = [currentAttendee uidInContext: context];
if (currentUID)
{
user = [SOGoUser userWithLogin: currentUID];
us = [user userSettings];
moduleSettings = [us objectForKey:@"Calendar"];
// Check if the user prevented their account from beeing invited to events
if ([[moduleSettings objectForKey:@"PreventInvitations"] boolValue])
{
// Check if the user have a whiteList
whiteList = [moduleSettings objectForKey:@"PreventInvitationsWhitelist"];
// For backward <= 2.2.17 compatibility
if ([whiteList isKindOfClass: [NSString class]])
whiteList = [whiteList objectFromJSONString];
// If the filter have a hit, do not add the currentUID to the unavailableAttendees array
if (![whiteList objectForKey:ownerUID])
{
values = [NSDictionary dictionaryWithObject:[user cn] forKey:@"Cn"];
[unavailableAttendees addObject:values];
}
}
}
}
count = [unavailableAttendees count];
if (count > 0)
{
reason = [NSMutableString stringWithString:[self labelForKey: @"Inviting the following persons is prohibited:"]];
// Add all the unavailable users in the warning message
for (i = 0; i < count; i++)
{
value = [unavailableAttendees objectAtIndex:i];
[reason appendString:[value keysWithFormat: @"\n %{Cn}"]];
if (i < count-2)
[reason appendString:@", "];
}
[unavailableAttendees release];
return [NSException exceptionWithHTTPStatus:409 reason: reason];
}
[unavailableAttendees release];
return nil;
}
//
// This methods scans the list of attendees. If they are
// considered as resource, it checks for conflicting
// dates for the event and potentially auto-accept/decline
// the invitation.
//
// For normal attendees, it'll return an exception with
// conflicting dates, unless we force the save.//
// We check for between startDate + 1 second and
// endDate - 1 second
//
// Note that it doesn't matter if it changes the participation
// status since in case of an error, nothing will get saved.
//
- (NSException *) _handleAttendeesConflicts: (NSArray *) theAttendees
forEvent: (iCalEvent *) theEvent
force: (BOOL) forceSave
{
iCalPerson *currentAttendee;
NSMutableArray *attendees;
NSEnumerator *enumerator;
NSString *currentUID;
SOGoUser *user, *currentUser;
_resourceHasAutoAccepted = NO;
// Build a list of the attendees uids
attendees = [NSMutableArray arrayWithCapacity: [theAttendees count]];
enumerator = [theAttendees objectEnumerator];
while ((currentAttendee = [enumerator nextObject]))
{
currentUID = [currentAttendee uidInContext: context];
if (currentUID)
{
[attendees addObject: currentUID];
}
}
// If the active user is not the owner of the calendar, check possible conflict when
// the owner is a resource
currentUser = [context activeUser];
if (!activeUserIsOwner && ![currentUser isSuperUser])
{
[attendees addObject: owner];
}
enumerator = [attendees objectEnumerator];
while ((currentUID = [enumerator nextObject]))
{
NSCalendarDate *start, *end, *rangeStartDate, *rangeEndDate;
SOGoAppointmentFolder *folder;
NGCalendarDateRange *range;
NSMutableArray *fbInfo;
NSArray *allOccurences;
BOOL must_delete;
int i, j, delta;
user = [SOGoUser userWithLogin: currentUID];
// We get the start/end date for our conflict range. If the event to be added is recurring, we
// check for at least a year to start with.
start = [[theEvent startDate] dateByAddingYears: 0 months: 0 days: 0 hours: 0 minutes: 0 seconds: 1];
end = [[theEvent endDate] dateByAddingYears: ([theEvent isRecurrent] ? 1 : 0) months: 0 days: 0 hours: 0 minutes: 0 seconds: -1];
folder = [user personalCalendarFolderInContext: context];
// Deny access to the resource if the ACLs don't allow the user
if ([user isResource] && ![folder aclSQLListingFilter])
{
NSDictionary *values;
NSString *reason;
values = [NSDictionary dictionaryWithObjectsAndKeys:
[user cn], @"Cn",
[user systemEmail], @"SystemEmail", nil];
reason = [values keysWithFormat: [self labelForKey: @"Cannot access resource: \"%{Cn} %{SystemEmail}\""]];
return [NSException exceptionWithHTTPStatus:409 reason: reason];
}
fbInfo = [NSMutableArray arrayWithArray: [folder fetchFreeBusyInfosFrom: start
to: end]];
//
// We must also check here for repetitive events that don't overlap our event.
// We remove all events that don't overlap. The events here are already
// decomposed.
//
if ([theEvent isRecurrent])
allOccurences = [theEvent recurrenceRangesWithinCalendarDateRange: [NGCalendarDateRange calendarDateRangeWithStartDate: start
endDate: end]
firstInstanceCalendarDateRange: [NGCalendarDateRange calendarDateRangeWithStartDate: [theEvent startDate]
endDate: [theEvent endDate]]];
else
allOccurences = nil;
for (i = [fbInfo count]-1; i >= 0; i--)
{
// We MUST use the -uniqueChildWithTag method here because the event has been flattened, so its timezone has been
// modified in SOGoAppointmentFolder: -fixupCycleRecord: ....
rangeStartDate = [[fbInfo objectAtIndex: i] objectForKey: @"startDate"];
delta = [[rangeStartDate timeZoneDetail] timeZoneSecondsFromGMT] - [[[(iCalDateTime *)[theEvent uniqueChildWithTag: @"dtstart"] timeZone] periodForDate: [theEvent startDate]] secondsOffsetFromGMT];
rangeStartDate = [rangeStartDate dateByAddingYears: 0 months: 0 days: 0 hours: 0 minutes: 0 seconds: delta];
rangeEndDate = [[fbInfo objectAtIndex: i] objectForKey: @"endDate"];
delta = [[rangeEndDate timeZoneDetail] timeZoneSecondsFromGMT] - [[[(iCalDateTime *)[theEvent uniqueChildWithTag: @"dtend"] timeZone] periodForDate: [theEvent endDate]] secondsOffsetFromGMT];
rangeEndDate = [rangeEndDate dateByAddingYears: 0 months: 0 days: 0 hours: 0 minutes: 0 seconds: delta];
range = [NGCalendarDateRange calendarDateRangeWithStartDate: rangeStartDate
endDate: rangeEndDate];
// We first remove any occurences in the freebusy that corresponds to the
// current event. We do this to avoid raising a conflict if we move a 1 hour
// meeting from 12:00-13:00 to 12:15-13:15. We would overlap on ourself otherwise.
if ([[[fbInfo objectAtIndex: i] objectForKey: @"c_uid"] compare: [theEvent uid]] == NSOrderedSame)
{
[fbInfo removeObjectAtIndex: i];
continue;
}
// No need to check if the event isn't recurrent here as it's handled correctly
// when we compute the "end" date.
if ([allOccurences count])
{
must_delete = YES;
for (j = 0; j < [allOccurences count]; j++)
{
if ([range doesIntersectWithDateRange: [allOccurences objectAtIndex: j]])
{
must_delete = NO;
break;
}
}
if (must_delete)
[fbInfo removeObjectAtIndex: i];
}
}
// Find the attendee associated to the current UID
for (i = 0; i < [theAttendees count]; i++)
{
currentAttendee = [theAttendees objectAtIndex: i];
if ([[currentAttendee uidInContext: context] isEqualToString: currentUID])
break;
else
currentAttendee = nil;
}
if ([fbInfo count])
{
SOGoDateFormatter *formatter;
formatter = [[context activeUser] dateFormatterInContext: context];
if ([user isResource])
{
// If we always force the auto-accept if numberOfSimultaneousBookings <= 0 (ie., no limit
// is imposed) or if numberOfSimultaneousBookings is greater than the number of
// overlapping events
if ([user numberOfSimultaneousBookings] <= 0 ||
[user numberOfSimultaneousBookings] > [fbInfo count])
{
if (currentAttendee)
{
[[currentAttendee attributes] removeObjectForKey: @"RSVP"];
[currentAttendee setParticipationStatus: iCalPersonPartStatAccepted];
_resourceHasAutoAccepted = YES;
}
}
else
{
iCalCalendar *calendar;
NSDictionary *values, *info;
NSString *reason;
iCalEvent *event;
calendar = [iCalCalendar parseSingleFromSource: [[fbInfo objectAtIndex: 0] objectForKey: @"c_content"]];
event = [[calendar events] lastObject];
values = [NSDictionary dictionaryWithObjectsAndKeys:
[NSString stringWithFormat: @"%d", [user numberOfSimultaneousBookings]], @"NumberOfSimultaneousBookings",
[user cn], @"Cn",
[user systemEmail], @"SystemEmail",
([event summary] ? [event summary] : @""), @"EventTitle",
[formatter formattedDateAndTime: [[fbInfo objectAtIndex: 0] objectForKey: @"startDate"]], @"StartDate",
nil];
reason = [values keysWithFormat: [self labelForKey: @"Maximum number of simultaneous bookings (%{NumberOfSimultaneousBookings}) reached for resource \"%{Cn} %{SystemEmail}\". The conflicting event is \"%{EventTitle}\", and starts on %{StartDate}."]];
info = [NSDictionary dictionaryWithObject: reason forKey: @"reject"];
return [NSException exceptionWithHTTPStatus: 409
reason: [info jsonRepresentation]];
}
}
//
// We are dealing with a normal attendee. Lets check if we have conflicts, unless
// we are being asked to force the save anyway
//
else if (!forceSave)
{
NSMutableDictionary *info;
NSMutableArray *conflicts;
id o;
info = [NSMutableDictionary dictionary];
conflicts = [NSMutableArray array];
if (currentAttendee)
{
if ([currentAttendee cn])
[info setObject: [currentAttendee cn] forKey: @"attendee_name"];
if ([currentAttendee rfc822Email])
[info setObject: [currentAttendee rfc822Email] forKey: @"attendee_email"];
}
for (i = 0; i < [fbInfo count]; i++)
{
o = [fbInfo objectAtIndex: i];
[conflicts addObject: [NSDictionary dictionaryWithObjectsAndKeys: [formatter formattedDateAndTime: [o objectForKey: @"startDate"]], @"startDate",
[formatter formattedDateAndTime: [o objectForKey: @"endDate"]], @"endDate", nil]];
}
[info setObject: conflicts forKey: @"conflicts"];
return [NSException exceptionWithHTTPStatus: 409
reason: [info jsonRepresentation]];
}
} // if ([fbInfo count]) ...
else if (currentAttendee && [user isResource])
{
// No conflict, we auto-accept. We do this for resources automatically if no
// double-booking is observed. If it's not the desired behavior, just don't
// set the resource as one!
[[currentAttendee attributes] removeObjectForKey: @"RSVP"];
[currentAttendee setParticipationStatus: iCalPersonPartStatAccepted];
_resourceHasAutoAccepted = YES;
}
} // if ([user isResource]) ...
return nil;
}
//
//
//
- (NSException *) _handleAddedUsers: (NSArray *) attendees
fromEvent: (iCalEvent *) newEvent
force: (BOOL) forceSave
{
iCalPerson *currentAttendee;
NSEnumerator *enumerator;
NSString *currentUID;
NSException *e;
// We check for conflicts
if ((e = [self _handleAttendeesConflicts: attendees forEvent: newEvent force: forceSave]))
return e;
if ((e = [self _handleAttendeesAvailability: attendees forEvent: newEvent]))
return e;
enumerator = [attendees objectEnumerator];
while ((currentAttendee = [enumerator nextObject]))
{
currentUID = [currentAttendee uidInContext: context];
if (currentUID)
[self _addOrUpdateEvent: newEvent
oldEvent: nil
forUID: currentUID
owner: owner];
}
return nil;
}
//
//
//
- (void) _addOrDeleteAttendees: (NSArray *) theAttendees
inRecurrenceExceptionsForEvent: (iCalEvent *) theEvent
add: (BOOL) shouldAdd
{
NSArray *events;
iCalEvent *e;
int i,j;
// We don't add/delete attendees to all recurrence exceptions if
// the modification was actually NOT made on the master event
if ([theEvent recurrenceId])
return;
events = [[theEvent parent] events];
for (i = 0; i < [events count]; i++)
{
e = [events objectAtIndex: i];
if ([e recurrenceId])
for (j = 0; j < [theAttendees count]; j++) {
if (shouldAdd)
[e addToAttendees: [theAttendees objectAtIndex: j]];
else
[e removeFromAttendees: [theAttendees objectAtIndex: j]];
}
}
}
//
//
//
- (NSException *) _handleUpdatedEvent: (iCalEvent *) newEvent
fromOldEvent: (iCalEvent *) oldEvent
force: (BOOL) forceSave
{
NSArray *addedAttendees, *deletedAttendees, *updatedAttendees;
iCalEventChanges *changes;
NSException *ex;
addedAttendees = nil;
deletedAttendees = nil;
updatedAttendees = nil;
changes = [newEvent getChangesRelativeToEvent: oldEvent];
if ([changes sequenceShouldBeIncreased])
{
// Set new attendees status to "needs action" and recompute changes when
// the list of attendees has changed. The list might have changed since
// by changing a major property of the event, we remove all the delegation
// chains to "other" attendees
if ([self _requireResponseFromAttendees: newEvent])
changes = [newEvent getChangesRelativeToEvent: oldEvent];
}
deletedAttendees = [changes deletedAttendees];
// We delete the attendees in all exception occurences, if
// the attendees were removed from the master event.
[self _addOrDeleteAttendees: deletedAttendees
inRecurrenceExceptionsForEvent: newEvent
add: NO];
if ([deletedAttendees count])
{
[self _handleRemovedUsers: deletedAttendees
withRecurrenceId: [newEvent recurrenceId]];
if ([self _shouldScheduleEvent: [newEvent organizer]])
[self sendEMailUsingTemplateNamed: @"Deletion"
forObject: [newEvent itipEntryWithMethod: @"cancel"]
previousObject: oldEvent
toAttendees: deletedAttendees
withType: @"calendar:cancellation"];
}
if ((ex = [self _handleAttendeesConflicts: [newEvent attendees] forEvent: newEvent force: forceSave]))
return ex;
if ((ex = [self _handleAttendeesAvailability: [newEvent attendees] forEvent: newEvent]))
return ex;
addedAttendees = [changes insertedAttendees];
// We insert the attendees in all exception occurences, if
// the attendees were added to the master event.
[self _addOrDeleteAttendees: addedAttendees
inRecurrenceExceptionsForEvent: newEvent
add: YES];
if ([changes sequenceShouldBeIncreased])
{
[newEvent increaseSequence];
// Update attendees calendars and send them an update
// notification by email. We ignore the newly added
// attendees as we don't want to send them invitation
// update emails
[self _handleSequenceUpdateInEvent: newEvent
ignoringAttendees: addedAttendees
fromOldEvent: oldEvent];
}
else
{
// If other attributes have changed, update the event
// in each attendee's calendar
if ([[changes updatedProperties] count])
{
NSEnumerator *enumerator;
iCalPerson *currentAttendee;
NSString *currentUID;
updatedAttendees = [newEvent attendees];
enumerator = [updatedAttendees objectEnumerator];
while ((currentAttendee = [enumerator nextObject]))
{
currentUID = [currentAttendee uidInContext: context];
if (currentUID)
[self _addOrUpdateEvent: newEvent
oldEvent: oldEvent
forUID: currentUID
owner: owner];
}
}
}
if ([addedAttendees count])
{
// Send an invitation to new attendees
if ((ex = [self _handleAddedUsers: addedAttendees fromEvent: newEvent force: forceSave]))
return ex;
if ([self _shouldScheduleEvent: [newEvent organizer]])
[self sendEMailUsingTemplateNamed: @"Invitation"
forObject: [newEvent itipEntryWithMethod: @"request"]
previousObject: oldEvent
toAttendees: addedAttendees
withType: @"calendar:invitation"];
}
if ([changes hasMajorChanges])
[self sendReceiptEmailForObject: newEvent
addedAttendees: addedAttendees
deletedAttendees: deletedAttendees
updatedAttendees: updatedAttendees
operation: EventUpdated];
return nil;
}
//
// Workflow : +----------------------+
// | |
// [saveComponent:]---> _handleAddedUsers:fromEvent: <-+ |
// | | v
// +------------> _handleUpdatedEvent:fromOldEvent: ---> _addOrUpdateEvent:oldEvent:forUID:owner: <-----------+
// | | ^ |