comparison plugins/calendar/drivers/calendar_driver.php @ 3:f6fe4b6ae66a

calendar plugin nearly as distributed
author Charlie Root
date Sat, 13 Jan 2018 08:56:12 -0500
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1 <?php
2
3 /**
4 * Driver interface for the Calendar plugin
5 *
6 * @version @package_version@
7 * @author Lazlo Westerhof <hello@lazlo.me>
8 * @author Thomas Bruederli <bruederli@kolabsys.com>
9 *
10 * Copyright (C) 2010, Lazlo Westerhof <hello@lazlo.me>
11 * Copyright (C) 2012-2015, Kolab Systems AG <contact@kolabsys.com>
12 *
13 * This program is free software: you can redistribute it and/or modify
14 * it under the terms of the GNU Affero General Public License as
15 * published by the Free Software Foundation, either version 3 of the
16 * License, or (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU Affero General Public License for more details.
22 *
23 * You should have received a copy of the GNU Affero General Public License
24 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 */
26
27
28 /**
29 * Struct of an internal event object how it is passed from/to the driver classes:
30 *
31 * $event = array(
32 * 'id' => 'Event ID used for editing',
33 * 'uid' => 'Unique identifier of this event',
34 * 'calendar' => 'Calendar identifier to add event to or where the event is stored',
35 * 'start' => DateTime, // Event start date/time as DateTime object
36 * 'end' => DateTime, // Event end date/time as DateTime object
37 * 'allday' => true|false, // Boolean flag if this is an all-day event
38 * 'changed' => DateTime, // Last modification date of event
39 * 'title' => 'Event title/summary',
40 * 'location' => 'Location string',
41 * 'description' => 'Event description',
42 * 'url' => 'URL to more information',
43 * 'recurrence' => array( // Recurrence definition according to iCalendar (RFC 2445) specification as list of key-value pairs
44 * 'FREQ' => 'DAILY|WEEKLY|MONTHLY|YEARLY',
45 * 'INTERVAL' => 1...n,
46 * 'UNTIL' => DateTime,
47 * 'COUNT' => 1..n, // number of times
48 * // + more properties (see http://www.kanzaki.com/docs/ical/recur.html)
49 * 'EXDATE' => array(), // list of DateTime objects of exception Dates/Times
50 * 'EXCEPTIONS' => array(<event>), list of event objects which denote exceptions in the recurrence chain
51 * ),
52 * 'recurrence_id' => 'ID of the recurrence group', // usually the ID of the starting event
53 * '_instance' => 'ID of the recurring instance', // identifies an instance within a recurrence chain
54 * 'categories' => 'Event category',
55 * 'free_busy' => 'free|busy|outofoffice|tentative', // Show time as
56 * 'status' => 'TENTATIVE|CONFIRMED|CANCELLED', // event status according to RFC 2445
57 * 'priority' => 0-9, // Event priority (0=undefined, 1=highest, 9=lowest)
58 * 'sensitivity' => 'public|private|confidential', // Event sensitivity
59 * 'alarms' => '-15M:DISPLAY', // DEPRECATED Reminder settings inspired by valarm definition (e.g. display alert 15 minutes before event)
60 * 'valarms' => array( // List of reminders (new format), each represented as a hash array:
61 * array(
62 * 'trigger' => '-PT90M', // ISO 8601 period string prefixed with '+' or '-', or DateTime object
63 * 'action' => 'DISPLAY|EMAIL|AUDIO',
64 * 'duration' => 'PT15M', // ISO 8601 period string
65 * 'repeat' => 0, // number of repetitions
66 * 'description' => '', // text to display for DISPLAY actions
67 * 'summary' => '', // message text for EMAIL actions
68 * 'attendees' => array(), // list of email addresses to receive alarm messages
69 * ),
70 * ),
71 * 'attachments' => array( // List of attachments
72 * 'name' => 'File name',
73 * 'mimetype' => 'Content type',
74 * 'size' => 1..n, // in bytes
75 * 'id' => 'Attachment identifier'
76 * ),
77 * 'deleted_attachments' => array(), // array of attachment identifiers to delete when event is updated
78 * 'attendees' => array( // List of event participants
79 * 'name' => 'Participant name',
80 * 'email' => 'Participant e-mail address', // used as identifier
81 * 'role' => 'ORGANIZER|REQ-PARTICIPANT|OPT-PARTICIPANT|CHAIR',
82 * 'status' => 'NEEDS-ACTION|UNKNOWN|ACCEPTED|TENTATIVE|DECLINED'
83 * 'rsvp' => true|false,
84 * ),
85 *
86 * '_savemode' => 'all|future|current|new', // How changes on recurring event should be handled
87 * '_notify' => true|false, // whether to notify event attendees about changes
88 * '_fromcalendar' => 'Calendar identifier where the event was stored before',
89 * );
90 */
91
92 /**
93 * Interface definition for calendar driver classes
94 */
95 abstract class calendar_driver
96 {
97 const FILTER_ALL = 0;
98 const FILTER_WRITEABLE = 1;
99 const FILTER_INSERTABLE = 2;
100 const FILTER_ACTIVE = 4;
101 const FILTER_PERSONAL = 8;
102 const FILTER_PRIVATE = 16;
103 const FILTER_CONFIDENTIAL = 32;
104 const FILTER_SHARED = 64;
105 const BIRTHDAY_CALENDAR_ID = '__bdays__';
106
107 // features supported by backend
108 public $alarms = false;
109 public $attendees = false;
110 public $freebusy = false;
111 public $attachments = false;
112 public $undelete = false;
113 public $history = false;
114 public $categoriesimmutable = false;
115 public $alarm_types = array('DISPLAY');
116 public $alarm_absolute = true;
117 public $last_error;
118
119 protected $default_categories = array(
120 'Personal' => 'c0c0c0',
121 'Work' => 'ff0000',
122 'Family' => '00ff00',
123 'Holiday' => 'ff6600',
124 );
125
126 /**
127 * Get a list of available calendars from this source
128 *
129 * @param integer Bitmask defining filter criterias.
130 * See FILTER_* constants for possible values.
131 * @return array List of calendars
132 */
133 abstract function list_calendars($filter = 0);
134
135 /**
136 * Create a new calendar assigned to the current user
137 *
138 * @param array Hash array with calendar properties
139 * name: Calendar name
140 * color: The color of the calendar
141 * showalarms: True if alarms are enabled
142 * @return mixed ID of the calendar on success, False on error
143 */
144 abstract function create_calendar($prop);
145
146 /**
147 * Update properties of an existing calendar
148 *
149 * @param array Hash array with calendar properties
150 * id: Calendar Identifier
151 * name: Calendar name
152 * color: The color of the calendar
153 * showalarms: True if alarms are enabled (if supported)
154 * @return boolean True on success, Fales on failure
155 */
156 abstract function edit_calendar($prop);
157
158 /**
159 * Set active/subscribed state of a calendar
160 *
161 * @param array Hash array with calendar properties
162 * id: Calendar Identifier
163 * active: True if calendar is active, false if not
164 * @return boolean True on success, Fales on failure
165 */
166 abstract function subscribe_calendar($prop);
167
168 /**
169 * Delete the given calendar with all its contents
170 *
171 * @param array Hash array with calendar properties
172 * id: Calendar Identifier
173 * @return boolean True on success, Fales on failure
174 */
175 abstract function delete_calendar($prop);
176
177 /**
178 * Search for shared or otherwise not listed calendars the user has access
179 *
180 * @param string Search string
181 * @param string Section/source to search
182 * @return array List of calendars
183 */
184 abstract function search_calendars($query, $source);
185
186 /**
187 * Add a single event to the database
188 *
189 * @param array Hash array with event properties (see header of this file)
190 * @return mixed New event ID on success, False on error
191 */
192 abstract function new_event($event);
193
194 /**
195 * Update an event entry with the given data
196 *
197 * @param array Hash array with event properties (see header of this file)
198 * @return boolean True on success, False on error
199 */
200 abstract function edit_event($event);
201
202 /**
203 * Extended event editing with possible changes to the argument
204 *
205 * @param array Hash array with event properties
206 * @param string New participant status
207 * @param array List of hash arrays with updated attendees
208 * @return boolean True on success, False on error
209 */
210 public function edit_rsvp(&$event, $status, $attendees)
211 {
212 return $this->edit_event($event);
213 }
214
215 /**
216 * Update the participant status for the given attendee
217 *
218 * @param array Hash array with event properties
219 * @param array List of hash arrays each represeting an updated attendee
220 * @return boolean True on success, False on error
221 */
222 public function update_attendees(&$event, $attendees)
223 {
224 return $this->edit_event($event);
225 }
226
227 /**
228 * Move a single event
229 *
230 * @param array Hash array with event properties:
231 * id: Event identifier
232 * start: Event start date/time as DateTime object
233 * end: Event end date/time as DateTime object
234 * allday: Boolean flag if this is an all-day event
235 * @return boolean True on success, False on error
236 */
237 abstract function move_event($event);
238
239 /**
240 * Resize a single event
241 *
242 * @param array Hash array with event properties:
243 * id: Event identifier
244 * start: Event start date/time as DateTime object with timezone
245 * end: Event end date/time as DateTime object with timezone
246 * @return boolean True on success, False on error
247 */
248 abstract function resize_event($event);
249
250 /**
251 * Remove a single event from the database
252 *
253 * @param array Hash array with event properties:
254 * id: Event identifier
255 * @param boolean Remove event irreversible (mark as deleted otherwise,
256 * if supported by the backend)
257 *
258 * @return boolean True on success, False on error
259 */
260 abstract function remove_event($event, $force = true);
261
262 /**
263 * Restores a single deleted event (if supported)
264 *
265 * @param array Hash array with event properties:
266 * id: Event identifier
267 *
268 * @return boolean True on success, False on error
269 */
270 public function restore_event($event)
271 {
272 return false;
273 }
274
275 /**
276 * Return data of a single event
277 *
278 * @param mixed UID string or hash array with event properties:
279 * id: Event identifier
280 * uid: Event UID
281 * _instance: Instance identifier in combination with uid (optional)
282 * calendar: Calendar identifier (optional)
283 * @param integer Bitmask defining the scope to search events in.
284 * See FILTER_* constants for possible values.
285 * @param boolean If true, recurrence exceptions shall be added
286 *
287 * @return array Event object as hash array
288 */
289 abstract function get_event($event, $scope = 0, $full = false);
290
291 /**
292 * Get events from source.
293 *
294 * @param integer Date range start (unix timestamp)
295 * @param integer Date range end (unix timestamp)
296 * @param string Search query (optional)
297 * @param mixed List of calendar IDs to load events from (either as array or comma-separated string)
298 * @param boolean Include virtual/recurring events (optional)
299 * @param integer Only list events modified since this time (unix timestamp)
300 * @return array A list of event objects (see header of this file for struct of an event)
301 */
302 abstract function load_events($start, $end, $query = null, $calendars = null, $virtual = 1, $modifiedsince = null);
303
304 /**
305 * Get number of events in the given calendar
306 *
307 * @param mixed List of calendar IDs to count events (either as array or comma-separated string)
308 * @param integer Date range start (unix timestamp)
309 * @param integer Date range end (unix timestamp)
310 * @return array Hash array with counts grouped by calendar ID
311 */
312 abstract function count_events($calendars, $start, $end = null);
313
314 /**
315 * Get a list of pending alarms to be displayed to the user
316 *
317 * @param integer Current time (unix timestamp)
318 * @param mixed List of calendar IDs to show alarms for (either as array or comma-separated string)
319 * @return array A list of alarms, each encoded as hash array:
320 * id: Event identifier
321 * uid: Unique identifier of this event
322 * start: Event start date/time as DateTime object
323 * end: Event end date/time as DateTime object
324 * allday: Boolean flag if this is an all-day event
325 * title: Event title/summary
326 * location: Location string
327 */
328 abstract function pending_alarms($time, $calendars = null);
329
330 /**
331 * (User) feedback after showing an alarm notification
332 * This should mark the alarm as 'shown' or snooze it for the given amount of time
333 *
334 * @param string Event identifier
335 * @param integer Suspend the alarm for this number of seconds
336 */
337 abstract function dismiss_alarm($event_id, $snooze = 0);
338
339 /**
340 * Check the given event object for validity
341 *
342 * @param array Event object as hash array
343 * @return boolean True if valid, false if not
344 */
345 public function validate($event)
346 {
347 $valid = true;
348
349 if (!is_object($event['start']) || !is_a($event['start'], 'DateTime'))
350 $valid = false;
351 if (!is_object($event['end']) || !is_a($event['end'], 'DateTime'))
352 $valid = false;
353
354 return $valid;
355 }
356
357
358 /**
359 * Get list of event's attachments.
360 * Drivers can return list of attachments as event property.
361 * If they will do not do this list_attachments() method will be used.
362 *
363 * @param array $event Hash array with event properties:
364 * id: Event identifier
365 * calendar: Calendar identifier
366 *
367 * @return array List of attachments, each as hash array:
368 * id: Attachment identifier
369 * name: Attachment name
370 * mimetype: MIME content type of the attachment
371 * size: Attachment size
372 */
373 public function list_attachments($event) { }
374
375 /**
376 * Get attachment properties
377 *
378 * @param string $id Attachment identifier
379 * @param array $event Hash array with event properties:
380 * id: Event identifier
381 * calendar: Calendar identifier
382 *
383 * @return array Hash array with attachment properties:
384 * id: Attachment identifier
385 * name: Attachment name
386 * mimetype: MIME content type of the attachment
387 * size: Attachment size
388 */
389 public function get_attachment($id, $event) { }
390
391 /**
392 * Get attachment body
393 *
394 * @param string $id Attachment identifier
395 * @param array $event Hash array with event properties:
396 * id: Event identifier
397 * calendar: Calendar identifier
398 *
399 * @return string Attachment body
400 */
401 public function get_attachment_body($id, $event) { }
402
403 /**
404 * Build a struct representing the given message reference
405 *
406 * @param object|string $uri_or_headers rcube_message_header instance holding the message headers
407 * or an URI from a stored link referencing a mail message.
408 * @param string $folder IMAP folder the message resides in
409 *
410 * @return array An struct referencing the given IMAP message
411 */
412 public function get_message_reference($uri_or_headers, $folder = null)
413 {
414 // to be implemented by the derived classes
415 return false;
416 }
417
418 /**
419 * List availabale categories
420 * The default implementation reads them from config/user prefs
421 */
422 public function list_categories()
423 {
424 $rcmail = rcube::get_instance();
425 return $rcmail->config->get('calendar_categories', $this->default_categories);
426 }
427
428 /**
429 * Create a new category
430 */
431 public function add_category($name, $color) { }
432
433 /**
434 * Remove the given category
435 */
436 public function remove_category($name) { }
437
438 /**
439 * Update/replace a category
440 */
441 public function replace_category($oldname, $name, $color) { }
442
443 /**
444 * Fetch free/busy information from a person within the given range
445 *
446 * @param string E-mail address of attendee
447 * @param integer Requested period start date/time as unix timestamp
448 * @param integer Requested period end date/time as unix timestamp
449 *
450 * @return array List of busy timeslots within the requested range
451 */
452 public function get_freebusy_list($email, $start, $end)
453 {
454 return false;
455 }
456
457 /**
458 * Create instances of a recurring event
459 *
460 * @param array Hash array with event properties
461 * @param object DateTime Start date of the recurrence window
462 * @param object DateTime End date of the recurrence window
463 * @return array List of recurring event instances
464 */
465 public function get_recurring_events($event, $start, $end = null)
466 {
467 $events = array();
468
469 if ($event['recurrence']) {
470 // include library class
471 require_once(dirname(__FILE__) . '/../lib/calendar_recurrence.php');
472
473 $rcmail = rcmail::get_instance();
474 $recurrence = new calendar_recurrence($rcmail->plugins->get_plugin('calendar'), $event);
475 $recurrence_id_format = libcalendaring::recurrence_id_format($event);
476
477 // determine a reasonable end date if none given
478 if (!$end) {
479 switch ($event['recurrence']['FREQ']) {
480 case 'YEARLY': $intvl = 'P100Y'; break;
481 case 'MONTHLY': $intvl = 'P20Y'; break;
482 default: $intvl = 'P10Y'; break;
483 }
484
485 $end = clone $event['start'];
486 $end->add(new DateInterval($intvl));
487 }
488
489 $i = 0;
490 while ($next_event = $recurrence->next_instance()) {
491 // add to output if in range
492 if (($next_event['start'] <= $end && $next_event['end'] >= $start)) {
493 $next_event['_instance'] = $next_event['start']->format($recurrence_id_format);
494 $next_event['id'] = $next_event['uid'] . '-' . $exception['_instance'];
495 $next_event['recurrence_id'] = $event['uid'];
496 $events[] = $next_event;
497 }
498 else if ($next_event['start'] > $end) { // stop loop if out of range
499 break;
500 }
501
502 // avoid endless recursion loops
503 if (++$i > 1000) {
504 break;
505 }
506 }
507 }
508
509 return $events;
510 }
511
512 /**
513 * Provide a list of revisions for the given event
514 *
515 * @param array $event Hash array with event properties:
516 * id: Event identifier
517 * calendar: Calendar identifier
518 *
519 * @return array List of changes, each as a hash array:
520 * rev: Revision number
521 * type: Type of the change (create, update, move, delete)
522 * date: Change date
523 * user: The user who executed the change
524 * ip: Client IP
525 * destination: Destination calendar for 'move' type
526 */
527 public function get_event_changelog($event)
528 {
529 return false;
530 }
531
532 /**
533 * Get a list of property changes beteen two revisions of an event
534 *
535 * @param array $event Hash array with event properties:
536 * id: Event identifier
537 * calendar: Calendar identifier
538 * @param mixed $rev1 Old Revision
539 * @param mixed $rev2 New Revision
540 *
541 * @return array List of property changes, each as a hash array:
542 * property: Revision number
543 * old: Old property value
544 * new: Updated property value
545 */
546 public function get_event_diff($event, $rev1, $rev2)
547 {
548 return false;
549 }
550
551 /**
552 * Return full data of a specific revision of an event
553 *
554 * @param mixed UID string or hash array with event properties:
555 * id: Event identifier
556 * calendar: Calendar identifier
557 * @param mixed $rev Revision number
558 *
559 * @return array Event object as hash array
560 * @see self::get_event()
561 */
562 public function get_event_revison($event, $rev)
563 {
564 return false;
565 }
566
567 /**
568 * Command the backend to restore a certain revision of an event.
569 * This shall replace the current event with an older version.
570 *
571 * @param mixed UID string or hash array with event properties:
572 * id: Event identifier
573 * calendar: Calendar identifier
574 * @param mixed $rev Revision number
575 *
576 * @return boolean True on success, False on failure
577 */
578 public function restore_event_revision($event, $rev)
579 {
580 return false;
581 }
582
583
584 /**
585 * Callback function to produce driver-specific calendar create/edit form
586 *
587 * @param string Request action 'form-edit|form-new'
588 * @param array Calendar properties (e.g. id, color)
589 * @param array Edit form fields
590 *
591 * @return string HTML content of the form
592 */
593 public function calendar_form($action, $calendar, $formfields)
594 {
595 $html = '';
596 foreach ($formfields as $field) {
597 $html .= html::div('form-section',
598 html::label($field['id'], $field['label']) .
599 $field['value']);
600 }
601
602 return $html;
603 }
604
605 /**
606 * Compose a list of birthday events from the contact records in the user's address books.
607 *
608 * This is a default implementation using Roundcube's address book API.
609 * It can be overriden with a more optimized version by the individual drivers.
610 *
611 * @param integer Event's new start (unix timestamp)
612 * @param integer Event's new end (unix timestamp)
613 * @param string Search query (optional)
614 * @param integer Only list events modified since this time (unix timestamp)
615 * @return array A list of event records
616 */
617 public function load_birthday_events($start, $end, $search = null, $modifiedsince = null)
618 {
619 // ignore update requests for simplicity reasons
620 if (!empty($modifiedsince)) {
621 return array();
622 }
623
624 // convert to DateTime for comparisons
625 $start = new DateTime('@'.$start);
626 $end = new DateTime('@'.$end);
627 // extract the current year
628 $year = $start->format('Y');
629 $year2 = $end->format('Y');
630
631 $events = array();
632 $search = mb_strtolower($search);
633 $rcmail = rcmail::get_instance();
634 $cache = $rcmail->get_cache('calendar.birthdays', 'db', 3600);
635 $cache->expunge();
636
637 $alarm_type = $rcmail->config->get('calendar_birthdays_alarm_type', '');
638 $alarm_offset = $rcmail->config->get('calendar_birthdays_alarm_offset', '-1D');
639 $alarms = $alarm_type ? $alarm_offset . ':' . $alarm_type : null;
640
641 // let the user select the address books to consider in prefs
642 $selected_sources = $rcmail->config->get('calendar_birthday_adressbooks');
643 $sources = $selected_sources ?: array_keys($rcmail->get_address_sources(false, true));
644 foreach ($sources as $source) {
645 $abook = $rcmail->get_address_book($source);
646
647 // skip LDAP address books unless selected by the user
648 if (!$abook || ($abook instanceof rcube_ldap && empty($selected_sources))) {
649 continue;
650 }
651
652 $abook->set_pagesize(10000);
653
654 // check for cached results
655 $cache_records = array();
656 $cached = $cache->get($source);
657
658 // iterate over (cached) contacts
659 foreach (($cached ?: $abook->search('*', '', 2, true, true, array('birthday'))) as $contact) {
660 $event = self::parse_contact($contact, $source);
661
662 if (empty($event)) {
663 continue;
664 }
665
666 // add stripped record to cache
667 if (empty($cached)) {
668 $cache_records[] = array(
669 'ID' => $contact['ID'],
670 'name' => $event['_displayname'],
671 'birthday' => $event['start']->format('Y-m-d'),
672 );
673 }
674
675 // filter by search term (only name is involved here)
676 if (!empty($search) && strpos(mb_strtolower($event['title']), $search) === false) {
677 continue;
678 }
679
680 $bday = clone $event['start'];
681 $byear = $bday->format('Y');
682
683 // quick-and-dirty recurrence computation: just replace the year
684 $bday->setDate($year, $bday->format('n'), $bday->format('j'));
685 $bday->setTime(12, 0, 0);
686 $this_year = $year;
687
688 // date range reaches over multiple years: use end year if not in range
689 if (($bday > $end || $bday < $start) && $year2 != $year) {
690 $bday->setDate($year2, $bday->format('n'), $bday->format('j'));
691 $this_year = $year2;
692 }
693
694 // birthday is within requested range
695 if ($bday <= $end && $bday >= $start) {
696 unset($event['_displayname']);
697 $event['alarms'] = $alarms;
698
699 // if this is not the first occurence modify event details
700 // but not when this is "all birthdays feed" request
701 if ($year2 - $year < 10 && ($age = ($this_year - $byear))) {
702 $event['description'] = $rcmail->gettext(array('name' => 'birthdayage', 'vars' => array('age' => $age)), 'calendar');
703 $event['start'] = $bday;
704 $event['end'] = clone $bday;
705 unset($event['recurrence']);
706 }
707
708 // add the main instance
709 $events[] = $event;
710 }
711 }
712
713 // store collected contacts in cache
714 if (empty($cached)) {
715 $cache->write($source, $cache_records);
716 }
717 }
718
719 return $events;
720 }
721
722 /**
723 * Get a single birthday calendar event
724 */
725 public function get_birthday_event($id)
726 {
727 // decode $id
728 list(,$source,$contact_id,$year) = explode(':', rcube_ldap::dn_decode($id));
729
730 $rcmail = rcmail::get_instance();
731
732 if ($source && $contact_id && ($abook = $rcmail->get_address_book($source))) {
733 if ($contact = $abook->get_record($contact_id, true)) {
734 return self::parse_contact($contact, $source);
735 }
736 }
737 }
738
739 /**
740 * Parse contact and create an event for its birthday
741 *
742 * @param array $contact Contact data
743 * @param string $source Addressbook source ID
744 *
745 * @return array Birthday event data
746 */
747 public static function parse_contact($contact, $source)
748 {
749 if (!is_array($contact)) {
750 return;
751 }
752
753 if (is_array($contact['birthday'])) {
754 $contact['birthday'] = reset($contact['birthday']);
755 }
756
757 if (empty($contact['birthday'])) {
758 return;
759 }
760
761 try {
762 $bday = $contact['birthday'];
763 if (!$bday instanceof DateTime) {
764 $bday = new DateTime($bday, new DateTimezone('UTC'));
765 }
766 $bday->_dateonly = true;
767 }
768 catch (Exception $e) {
769 rcube::raise_error(array(
770 'code' => 600, 'type' => 'php',
771 'file' => __FILE__, 'line' => __LINE__,
772 'message' => 'BIRTHDAY PARSE ERROR: ' . $e->getMessage()),
773 true, false);
774 return;
775 }
776
777 $rcmail = rcmail::get_instance();
778 $birthyear = $bday->format('Y');
779 $display_name = rcube_addressbook::compose_display_name($contact);
780 $label = array('name' => 'birthdayeventtitle', 'vars' => array('name' => $display_name));
781 $event_title = $rcmail->gettext($label, 'calendar');
782 $uid = rcube_ldap::dn_encode('bday:' . $source . ':' . $contact['ID'] . ':' . $birthyear);
783
784 $event = array(
785 'id' => $uid,
786 'uid' => $uid,
787 'calendar' => self::BIRTHDAY_CALENDAR_ID,
788 'title' => $event_title,
789 'description' => '',
790 'allday' => true,
791 'start' => $bday,
792 'end' => clone $bday,
793 'recurrence' => array('FREQ' => 'YEARLY', 'INTERVAL' => 1),
794 'free_busy' => 'free',
795 '_displayname' => $display_name,
796 );
797
798 return $event;
799 }
800
801 /**
802 * Store alarm dismissal for birtual birthay events
803 *
804 * @param string Event identifier
805 * @param integer Suspend the alarm for this number of seconds
806 */
807 public function dismiss_birthday_alarm($event_id, $snooze = 0)
808 {
809 $rcmail = rcmail::get_instance();
810 $cache = $rcmail->get_cache('calendar.birthdayalarms', 'db', 86400 * 30);
811 $cache->remove($event_id);
812
813 // compute new notification time or disable if not snoozed
814 $notifyat = $snooze > 0 ? time() + $snooze : null;
815 $cache->set($event_id, array('snooze' => $snooze, 'notifyat' => $notifyat));
816
817 return true;
818 }
819
820 /**
821 * Handler for user_delete plugin hook
822 *
823 * @param array Hash array with hook arguments
824 * @return array Return arguments for plugin hooks
825 */
826 public function user_delete($args)
827 {
828 // TO BE OVERRIDDEN
829 return $args;
830 }
831 }