<?php
/**
* EGroupware - Calendar's buisness-object - access + update
*
* @link http://www.egroupware.org
* @package calendar
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @author Joerg Lehrke <jlehrke@noc.de>
* @copyright (c) 2005-16 by RalfBecker-At-outdoor-training.de
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @version $Id$
*/
use EGroupware\Api;
use EGroupware\Api\Acl;
use EGroupware\Api\Link;
// types of messsages send by calendar_boupdate::send_update
define('MSG_DELETED',0);
define('MSG_MODIFIED',1);
define('MSG_ADDED',2);
define('MSG_REJECTED',3);
define('MSG_TENTATIVE',4);
define('MSG_ACCEPTED',5);
define('MSG_ALARM',6);
define('MSG_DISINVITE',7);
define('MSG_DELEGATED',8);
define('MSG_REQUEST',9);
/**
* Class to access AND manipulate all calendar data (business object)
*
* The new UI, BO and SO classes have a strikt definition, in which time-zone they operate:
* UI only operates in user-time, so there have to be no conversation at all !!!
* BO's functions take and return user-time only (!), they convert internaly everything to servertime, because
* SO operates only on server-time
*
* As this BO class deals with dates/times of several types and timezone, each variable should have a postfix
* appended, telling with type it is: _s = seconds, _su = secs in user-time, _ss = secs in server-time, _h = hours
*
* All new BO code (should be true for eGW in general) NEVER use any $_REQUEST ($_POST or $_GET) vars itself.
* Nor does it store the state of any UI-elements (eg. cat-id selectbox). All this is the task of the UI class(es) !!!
*
* All permanent debug messages of the calendar-code should done via the debug-message method of the bocal class !!!
*/
class calendar_boupdate extends calendar_bo
{
/**
* Category ACL allowing to add a given category
*/
const CAT_ACL_ADD = 512;
/**
* Category ACL allowing to change status of a participant
*/
const CAT_ACL_STATUS = 1024;
/**
* name of method to debug or level of debug-messages:
* False=Off as higher as more messages you get ;-)
* 1 = function-calls incl. parameters to general functions like search, read, write, delete
* 2 = function-calls to exported helper-functions like check_perms
* 4 = function-calls to exported conversation-functions like date2ts, date2array, ...
* 5 = function-calls to private functions
* @var mixed
*/
var $debug;
/**
* Set Logging
*
* @var boolean
*/
var $log = false;
var $logfile = '/tmp/log-calendar-boupdate';
/**
* Cached timezone data
*
* @var array id => data
*/
protected static $tz_cache = array();
/**
* Constructor
*/
function __construct()
{
if ($this->debug > 0) $this->debug_message('calendar_boupdate::__construct() started',True);
parent::__construct(); // calling the parent constructor
if ($this->debug > 0) $this->debug_message('calendar_boupdate::__construct() finished',True);
}
/**
* updates or creates an event, it (optionally) checks for conflicts and sends the necessary notifications
*
* @param array &$event event-array, on return some values might be changed due to set defaults
* @param boolean $ignore_conflicts =false just ignore conflicts or do a conflict check and return the conflicting events
* @param boolean $touch_modified =true NOT USED ANYMORE (was only used in old csv-import), modified&modifier is always updated!
* @param boolean $ignore_acl =false should we ignore the acl
* @param boolean $updateTS =true update the content history of the event (ignored, as updating timestamps is required for sync!)
* @param array &$messages=null messages about because of missing ACL removed participants or categories
* @param boolean|"NOPUSH" $skip_notification =false true: send NO notifications, default false = send them,
* "NOPUSH": also do NOT send push notifications / call Link::notifiy(), which still happens for true
* @return mixed on success: int $cal_id > 0, on error false or array with conflicting events (only if $check_conflicts)
* Please note: the events are not guarantied to be readable by the user (no read grant or private)!
*
* @ToDo current conflict checking code does NOT cope quantity-wise correct with multiple non-overlapping
* events overlapping the event to store: the quantity sum is used, even as the events dont overlap!
*
* ++++++++ ++++++++
* + + + B + If A get checked for conflicts, the check used for resource quantity is
* + + ++++++++
* + A + quantity(A,resource)+quantity(B,resource)+quantity(C,resource) > maxBookable(resource)
* + + ++++++++
* + + + C + which is clearly wrong for everything with a maximum quantity > 1
* ++++++++ ++++++++
*/
function update(&$event,$ignore_conflicts=false,$touch_modified=true,$ignore_acl=false,$updateTS=true,&$messages=null, $skip_notification=false)
{
$update_type = 'edit';
unset($updateTS); // ignored, as updating timestamps is required for sync!
//error_log(__METHOD__."(".array2string($event).",$ignore_conflicts,$touch_modified,$ignore_acl)");
if (!is_array($messages)) $messages = $messages ? (array)$messages : array();
if ($this->debug > 1 || $this->debug == 'update')
{
$this->debug_message('calendar_boupdate::update(%1,ignore_conflict=%2,touch_modified=%3,ignore_acl=%4)',
false,$event,$ignore_conflicts,$touch_modified,$ignore_acl);
}
// check some minimum requirements:
// - new events need start, end and title
// - updated events cant set start, end or title to empty
if (empty($event['id']) && (!$event['start'] || !$event['end'] || !$event['title']) ||
!empty($event['id']) && (isset($event['start']) && !$event['start'] || isset($event['end']) && !$event['end'] ||
isset($event['title']) && !$event['title']))
{
$messages[] = lang('Required information (start, end, title, ...) missing!');
return false;
}
$status_reset_to_unknown = false;
if (($new_event = empty($event['id']))) // some defaults for new entries
{
// if no owner given, set user to owner
if (!$event['owner']) $event['owner'] = $this->user;
// set owner as participant if none is given
if (!is_array($event['participants']) || !count($event['participants']))
{
$status = calendar_so::combine_status($event['owner'] == $this->user ? 'A' : 'U', 1, 'CHAIR');
$event['participants'] = array($event['owner'] => $status);
}
$update_type = 'add';
}
// check if user has the permission to update / create the event
if (!$ignore_acl && (!$new_event && !$this->check_perms(Acl::EDIT,$event['id']) ||
$new_event && !$this->check_perms(Acl::EDIT,0,$event['owner'])) &&
!$this->check_perms(Acl::ADD,0,$event['owner']))
{
$messages[] = lang('Access to calendar of %1 denied!',Api\Accounts::username($event['owner']));
return false;
}
if ($new_event)
{
$old_event = array();
}
else
{
$old_event = $this->read((int)$event['id'],null,$ignore_acl);
}
// do we need to check, if user is allowed to invite the invited participants
if ($this->require_acl_invite && ($removed = $this->remove_no_acl_invite($event,$old_event)))
{
// report removed participants back to user
foreach($removed as $key => $account_id)
{
$removed[$key] = $this->participant_name($account_id);
}
$messages[] = lang('%1 participants removed because of missing invite grants',count($removed)).
': '.implode(', ',$removed);
}
// check category based ACL
if (!empty($event['category']))
{
if (!is_array($event['category'])) $event['category'] = explode(',',$event['category']);
if (!$old_event || !isset($old_event['category']))
{
$old_event['category'] = array();
}
elseif (!is_array($old_event['category']))
{
$old_event['category'] = explode(',', $old_event['category']);
}
foreach($event['category'] as $key => $cat_id)
{
// check if user is allowed to update event categories
if ((!$old_event || !in_array($cat_id,$old_event['category'])) &&
self::has_cat_right(self::CAT_ACL_ADD,$cat_id,$this->user) === false)
{
unset($event['category'][$key]);
// report removed category to user
$removed_cats[$cat_id] = $this->categories->id2name($cat_id);
continue; // no further check, as cat was removed
}
// for new or moved events check status of participants, if no category status right --> set all status to 'U' = unknown
if (!$status_reset_to_unknown &&
self::has_cat_right(self::CAT_ACL_STATUS,$cat_id,$this->user) === false &&
(!$old_event || $old_event['start'] != $event['start'] || $old_event['end'] != $event['end']))
{
foreach((array)$event['participants'] as $uid => $status)
{
$q = $r = null;
calendar_so::split_status($status,$q,$r);
if ($status != 'U')
{
$event['participants'][$uid] = calendar_so::combine_status('U',$q,$r);
// todo: report reset status to user
}
}
$status_reset_to_unknown = true; // once is enough
}
}
if ($removed_cats)
{
$messages[] = lang('Category %1 removed because of missing rights',implode(', ',$removed_cats));
}
if ($status_reset_to_unknown)
{
$messages[] = lang('Status of participants set to unknown because of missing category rights');
}
}
// generate a video-room-url, if we need one and not already have one
if (!empty($event['videoconference']) && empty($event['##videoconference']) && !calendar_hooks::isVideoconferenceDisabled())
{
$event['##videoconference'] = EGroupware\Status\Videoconference\Call::genUniqueRoomID();
}
elseif (isset($event['videoconference']) && !$event['videoconference'])
{
$event['##videoconference'] = '';
}
// update videoconference resource amounts based on number of participants
if (!empty($event['videoconference']) && !empty($event['##videoconference']) && !calendar_hooks::isVideoconferenceDisabled()
&& ($videoconferenceResId = \EGroupware\Status\Hooks::getVideoconferenceResourceId()))
{
$participant_total = 0;
foreach(['u','e','c'] as $p_type)
{
if(is_array($event['participant_types'][$p_type]))
{
$participant_total += count($event['participant_types'][$p_type]);
}
}
$event['participant_types']['r'][$videoconferenceResId] =
$event['participants']['r'.$videoconferenceResId] = 'A'.$participant_total;
}
// check for conflicts only happens !$ignore_conflicts AND if start + end date are given
$checked_excluding = null;
if (!$ignore_conflicts && !$event['non_blocking'] && isset($event['start']) && isset($event['end']) &&
(($conflicts = $this->conflicts($event, $checked_excluding)) || $checked_excluding))
{
if ($checked_excluding) // warn user if not all recurrences have been checked
{
$conflicts['warning'] = array(
'start' => $checked_excluding,
'title' => lang('Only recurrences until %1 (excluding) have been checked!', $checked_excluding->format(true)),
);
}
return $conflicts;
}
//echo "saving $event[id]="; _debug_array($event);
$event2save = $event;
if (!($cal_id = $this->save($event, $ignore_acl)))
{
return $cal_id;
}
// we re-read the event, in case only partial information was update and we need the full info for the notifies
// The check for new private events is to at least show the private version,
// otherwise we get FALSE
$event = $this->read($cal_id, null, $ignore_acl, 'ts', $new_event && !$event['public'] ? $this->user : null);
//error_log("new $cal_id=". array2string($event));
if(!empty($old_event['deleted']) && !isset($event['deleted']))
{
// Restored, bring back links
Link::restore('calendar', $cal_id);
$update_type = 'add';
}
if (!empty($this->log_file))
{
$this->log2file($event2save,$event,$old_event);
}
// send notifications if the event is in the future
if(!$skip_notification && $this->eventInFuture($event))
{
if ($new_event)
{
$this->send_update(MSG_ADDED,$event['participants'],null, $event);
}
else // update existing event
{
$this->check4update($event,$old_event);
}
}
// notify the link-class about the update, as other apps may be subscribed to it
if ($skip_notification !== "NOPUSH")
{
Link::notify_update('calendar', $cal_id, $event, $update_type);
}
return $cal_id;
}
/**
* Check given event for conflicts and return them
*
* For recurring events we check a configurable fixed number of recurrences
* and for a fixed maximum time (default 3s).
*
* Conflict check skips past events/recurrences and is always limited by recurrence horizont,
* as it would only report non-recurring events after.
*
* @param array $event
* @param Api\DateTime& $checked_excluding =null time until which (excluding) recurrences have been checked
* @return array or events
*/
function conflicts(array $event, &$checked_excluding=null)
{
$types_with_quantity = array();
foreach($this->resources as $type => $data)
{
if ($data['max_quantity']) $types_with_quantity[] = $type;
}
// get all NOT rejected participants and evtl. their quantity
$quantity = $users = array();
foreach($event['participants'] as $uid => $status)
{
$q = $role = null;
calendar_so::split_status($status, $q, $role);
if ($status == 'R' || $role == 'NON-PARTICIPANT') continue; // ignore rejected or non-participants
if ($uid < 0) // group, check it's members too
{
$users = array_unique(array_merge($users, (array)$GLOBALS['egw']->accounts->members($uid,true)));
}
$users[] = $uid;
if (in_array($uid[0],$types_with_quantity))
{
$quantity[$uid] = $q;
}
}
$max_quantity = $possible_quantity_conflicts = $conflicts = array();
if ($event['recur_type'])
{
$recurences = calendar_rrule::event2rrule($event);
}
else
{
$recurences = array(new Api\DateTime((int)$event['start']));
}
$checked_excluding = null;
$max_checked = $GLOBALS['egw_info']['server']['conflict_max_checked'];
if (($max_check_time = (float)$GLOBALS['egw_info']['server']['conflict_max_check_time']) < 1.0)
{
$max_check_time = 3.0;
}
$checked = 0;
$start = microtime(true);
$duration = Api\DateTime::to($event['end'], 'ts') - Api\DateTime::to($event['start'], 'ts');
foreach($recurences as $date)
{
$startts = $date->format('ts');
// skip past events or recurrences
if ($startts+$duration < $this->now_su) continue;
// abort check if configured limits are exceeded
if ($event['recur_type'] &&
(++$checked > $max_checked && $max_checked > 0 || // maximum number of checked recurrences exceeded
microtime(true) > $start+$max_check_time || // max check time exceeded
$startts > $this->config['horizont'])) // we are behind horizon for which recurrences are rendered
{
if ($this->debug > 2 || $this->debug == 'conflicts')
{
$this->debug_message(__METHOD__.'() conflict check limited to %1 recurrences, %2 seconds, until (excluding) %3',
$checked, microtime(true)-$start, $date);
}
$checked_excluding = $date;
break;
}
$overlapping_events =& $this->search(array(
'start' => $startts,
'end' => $startts+$duration,
'users' => $users,
'ignore_acl' => true, // otherwise we get only events readable by the user
'enum_groups' => true, // otherwise group-events would not block time
'query' => array(
'cal_non_blocking' => 0,
),
'no_integration' => true, // do NOT use integration of other apps
));
if ($this->debug > 2 || $this->debug == 'conflicts')
{
$this->debug_message(__METHOD__.'() checking for potential overlapping events for users %1 from %2 to %3',false,$users,$startts,$startts+$duration);
}
foreach((array) $overlapping_events as $k => $overlap)
{
if ($overlap['id'] == $event['id'] || // that's the event itself
$overlap['id'] == $event['reference'] || // event is an exception of overlap
$overlap['non_blocking']) // that's a non_blocking event
{
continue;
}
if ($this->debug > 3 || $this->debug == 'conflicts')
{
$this->debug_message(__METHOD__.'() checking overlapping event %1',false,$overlap);
}
// check if the overlap is with a rejected participant or within the allowed quantity
$common_parts = array_intersect($users,array_keys($overlap['participants']));
foreach($common_parts as $n => $uid)
{
$status = $overlap['participants'][$uid];
calendar_so::split_status($status, $q, $role);
if ($status == 'R' || $role == 'NON-PARTICIPANT')
{
unset($common_parts[$n]);
continue;
}
if (is_numeric($uid) || !in_array($uid[0],$types_with_quantity))
{
continue; // no quantity check: quantity allways 1 ==> conflict
}
if (!isset($max_quantity[$uid]))
{
$res_info = $this->resource_info($uid);
$max_quantity[$uid] = $res_info[$this->resources[$uid[0]]['max_quantity']];
}
$quantity[$uid] += $q;
if ($quantity[$uid] <= $max_quantity[$uid])
{
$possible_quantity_conflicts[$uid][] =& $overlapping_events[$k]; // an other event can give the conflict
unset($common_parts[$n]);
continue;
}
// now we have a quantity conflict for $uid
}
if (count($common_parts))
{
if ($this->debug > 3 || $this->debug == 'conflicts')
{
$this->debug_message(__METHOD__.'() conflicts with the following participants found %1',false,$common_parts);
}
$conflicts[$overlap['id'].'-'.$this->date2ts($overlap['start'])] =& $overlapping_events[$k];
}
}
}
//error_log(__METHOD__."() conflict check took ".number_format(microtime(true)-$start, 3).'s');
// check if we are withing the allowed quantity and if not add all events using that resource
// seems this function is doing very strange things, it gives empty conflicts
foreach($max_quantity as $uid => $max)
{
if ($quantity[$uid] > $max)
{
foreach((array)$possible_quantity_conflicts[$uid] as $conflict)
{
$conflicts[$conflict['id'].'-'.$this->date2ts($conflict['start'])] =& $possible_quantity_conflicts[$k];
}
}
}
unset($possible_quantity_conflicts);
if (count($conflicts))
{
foreach($conflicts as $key => $conflict)
{
$conflict['participants'] = array_intersect_key((array)$conflict['participants'],$event['participants']);
if (!$this->check_perms(Acl::READ,$conflict))
{
$conflicts[$key] = array(
'id' => $conflict['id'],
'title' => lang('busy'),
'participants' => $conflict['participants'],
'start' => $conflict['start'],
'end' => $conflict['end'],
);
}
}
if ($this->debug > 2 || $this->debug == 'conflicts')
{
$this->debug_message(__METHOD__.'() %1 conflicts found %2',false,count($conflicts),$conflicts);
}
}
return $conflicts;
}
/**
* Remove participants current user has no right to invite
*
* @param array &$event new event
* @param array $old_event =null old event with already invited participants
* @return array removed participants because of missing invite grants
*/
public function remove_no_acl_invite(array &$event,array $old_event=null)
{
if (!$this->require_acl_invite)
{
return array(); // nothing to check, everyone can invite everyone else
}
if ($event['id'] && is_null($old_event))
{
$old_event = $this->read($event['id']);
}
$removed = array();
foreach(array_keys((array)$event['participants']) as $uid)
{
if ((is_null($old_event) || !isset($old_event['participants'][$uid])) && !$this->check_acl_invite($uid))
{
unset($event['participants'][$uid]); // remove participant
$removed[] = $uid;
}
}
//echo "<p>".__METHOD__."($event[title],".($old_event?'$old_event':'NULL').") returning ".array2string($removed)."</p>";
return $removed;
}
/**
* Check if current user is allowed to invite a given participant
*
* @param int|string $uid
* @return boolean
*/
public function check_acl_invite($uid)
{
if (!is_numeric($uid) && $this->resources[$uid[0]]['check_invite'])
{
// Resource specific ACL check
return call_user_func($this->resources[$uid[0]]['check_invite'], $uid);
}
elseif (!$this->require_acl_invite)
{
$ret = true; // no grant required
}
elseif ($this->require_acl_invite == 'groups' && $GLOBALS['egw']->accounts->get_type($uid) != 'g')
{
$ret = true; // grant only required for groups
}
else
{
$ret = $this->check_perms(self::ACL_INVITE,0,$uid);
}
//error_log(__METHOD__."($uid) = ".array2string($ret));
//echo "<p>".__METHOD__."($uid) require_acl_invite=$this->require_acl_invite returning ".array2string($ret)."</p>\n";
return $ret;
}
/**
* Check for added, modified or deleted participants AND notify them
*
* @param array $new_event the updated event
* @param array $old_event the event before the update
*/
function check4update($new_event,$old_event)
{
//error_log(__METHOD__."($new_event[title])");
$modified = $added = $deleted = array();
//echo "<p>calendar_boupdate::check4update() new participants = ".print_r($new_event['participants'],true).", old participants =".print_r($old_event['participants'],true)."</p>\n";
foreach(['start','end','tz_id','owner','category','priority','public','title','description','location',
'recur_exception','recur_rdates', 'recur_enddate'] as $field)
{
if($new_event[$field] !== $old_event[$field])
{
$modified = $new_event['participants'];
break;
}
}
// Find modified and deleted participants ...
foreach ((array)$old_event['participants'] as $old_userid => $old_status)
{
if (isset($new_event['participants'][$old_userid]) && $old_status !== $new_event['participants'][$old_userid])
{
$modified[$old_userid] = $new_event['participants'][$old_userid];
}
else if (!isset($new_event['participants'][$old_userid]))
{
$deleted[$old_userid] = $old_status;
}
}
// Find new participants ...
foreach(array_keys((array)$new_event['participants']) as $new_userid)
{
if(!isset($old_event['participants'][$new_userid]))
{
$added[$new_userid] = 'U';
}
}
//echo "<p>calendar_boupdate::check4update() added=".print_r($added,true).", modified=".print_r($modified,true).", deleted=".print_r($deleted,true)."</p>\n";
if(count($added) || count($modified) || count($deleted))
{
if(count($added))
{
$this->send_update(MSG_ADDED,$added,$old_event,$new_event);
}
if(count($modified))
{
$this->send_update(MSG_MODIFIED,$modified,$old_event,$new_event);
}
if(count($deleted))
{
$this->send_update(MSG_DISINVITE,$deleted,$new_event);
}
}
}
/**
* checks if $userid has requested (in $part_prefs) updates for $msg_type
*
* @param int $userid numerical user-id
* @param array $part_prefs preferences of the user $userid
* @param int &$msg_type type of the notification: MSG_ADDED, MSG_MODIFIED, MSG_ACCEPTED, ...
* @param array $old_event Event before the change
* @param array $new_event Event after the change
* @param string $role we treat CHAIR like event owners
* @param string $status of current user
* @return boolean true = update requested, false otherwise
*/
public function update_requested($userid, $part_prefs, &$msg_type, $old_event ,$new_event, $role, $status=null)
{
if ($msg_type == MSG_ALARM)
{
return True; // always True for now
}
$want_update = 0;
// the following switch falls through all cases, as each included the following too
//
$msg_is_response = $msg_type == MSG_REJECTED || $msg_type == MSG_ACCEPTED || $msg_type == MSG_TENTATIVE || $msg_type == MSG_DELEGATED;
// Check if user is not participating, and does not want notifications
if ($msg_is_response && is_array($old_event) && empty($part_prefs['calendar']['receive_not_participating']) &&
// userid is the email address for non-user and NOT necessary the uid used as key in participants ("rb@egroupware.org" vs "eRalf Becker <rb@egroupware.org>")
!in_array(is_numeric($userid) ? $userid : strtolower($userid), array_map(function($uid)
{
return is_numeric($uid) ? $uid : strtolower($this->resource_info($uid)['email'] ?? '');
}, array_keys($old_event['participants'])), false))
{
error_log(__METHOD__."(userid=$userid, receive_not_participating='{$part_prefs['calendar']['receive_not_participating']}', msg_type=$msg_type, {participants: ".json_encode($old_event['participants']).", ...}, role='$role') msg_is_response=$msg_is_response --> user $userid is NOT participating");
return false;
}
// always notify externals chairs
// EGroupware owner only get notified about responses, if pref is NOT "no"
if (!is_numeric($userid) && $role == 'CHAIR' &&
($msg_is_response || in_array($msg_type, array(MSG_ADDED, MSG_DELETED))))
{
switch($msg_type)
{
case MSG_DELETED: // treat deleting event as rejection to organizer
$msg_type = MSG_REJECTED;
break;
case MSG_ADDED: // new events use added, but organizer needs status
switch($status[0])
{
case 'A': $msg_type = MSG_ACCEPTED; break;
case 'R': $msg_type = MSG_REJECTED; break;
case 'T': $msg_type = MSG_TENTATIVE; break;
case 'D': $msg_type = MSG_DELEGATED; break;
}
break;
}
++$want_update;
}
else
{
switch($ru = $part_prefs['calendar']['receive_updates'])
{
case 'responses':
++$want_update;
case 'modifications':
if (!$msg_is_response)
{
++$want_update;
}
case 'time_change_4h':
case 'time_change':
default:
if (is_array($new_event) && is_array($old_event))
{
$diff = max(abs(self::date2ts($old_event['start']??null)-self::date2ts($new_event['start']??null)),
abs(self::date2ts($old_event['end']??null)-self::date2ts($new_event['end']??null)));
$check = $ru == 'time_change_4h' ? 4 * 60 * 60 - 1 : 0;
if ($msg_type == MSG_MODIFIED && ($diff > $check ||
// also notify if recurrences where added or removed
$old_event['recur_exception'] != $new_event['recur_exception'] ||
$old_event['recur_rdates'] != $new_event['recur_rdates'] ||
$old_event['recur_enddate'] != $new_event['recur_enddate']))
{
++$want_update;
}
}
case 'add_cancel':
if ($msg_is_response && is_array($old_event) && (isset($old_event['owner']) && $old_event['owner'] == $userid || $role == 'CHAIR') ||
$msg_type == MSG_DELETED || $msg_type == MSG_ADDED || $msg_type == MSG_DISINVITE)
{
++$want_update;
}
break;
case 'no':
break;
}
}
//error_log(__METHOD__."(userid=$userid, receive_updates='$ru', msg_type=$msg_type, ".json_encode($old_event).", ..., role='$role') msg_is_response=$msg_is_response --> want_update=$want_update");
return $want_update > 0;
}
/**
* Check calendar prefs, if a given user (integer account_id) or email (user or externals) should get notified
*
* @param int|string $user_or_email
* @param string $ical_method ='REQUEST'
* @param string $role ='REQ-PARTICIPANT'
* @param string $notify_externals =null event-specific overwrite, default preferences
* @return boolean true if user requested to be notified, false if not
*/
static public function email_update_requested($user_or_email, $ical_method='REQUEST', $role='REQ-PARTICIPANT',$notify_externals=null)
{
// check if email is from a user
if (is_numeric($user_or_email))
{
$account_id = $user_or_email;
}
else
{
$account_id = $GLOBALS['egw']->accounts->name2id($user_or_email, 'account_email');
}
if ($account_id)
{
$pref_obj = new Api\Preferences($account_id);
$prefs = $pref_obj->read_repository();
}
else
{
$prefs = array(
'calendar' => array(
'receive_updates' => $notify_externals ?: $GLOBALS['egw_info']['user']['preferences']['calendar']['notify_externals'],
)
);
}
switch($ical_method)
{
default:
case 'REQUEST':
$msg_type = MSG_ADDED;
break;
case 'REPLY':
$msg_type = MSG_ACCEPTED;
break;
case 'CANCEL':
$msg_type = MSG_DELETED;
break;
}
static $calendar_boupdate=null;
if (!isset($calendar_boupdate)) $calendar_boupdate = new calendar_boupdate();
$ret = $calendar_boupdate->update_requested($account_id, $prefs, $msg_type, array(), array(), $role);
//error_log(__METHOD__."('$user_or_email', '$ical_method', '$role') account_id=$account_id --> updated_requested returned ".array2string($ret));
return $ret;
}
/**
* Get iCal/iMip method from internal nummeric msg-type plus optional notification message and verbose name
*
* @param int $msg_type see MSG_* defines
* @param string& $action=null on return verbose name
* @param string& $msg=null on return notification message
*/
function msg_type2ical_method($msg_type, &$action=null, &$msg=null, $prefs=null)
{
switch($msg_type)
{
case MSG_DELETED:
$action = 'Canceled';
$pref = 'Canceled';
$method = 'CANCEL';
break;
case MSG_MODIFIED:
$action = 'Modified';
$pref = 'Modified';
$method = 'REQUEST';
break;
case MSG_DISINVITE:
$action = 'Disinvited';
$pref = 'Disinvited';
$method = 'CANCEL';
break;
case MSG_ADDED:
$action = 'Added';
$pref = 'Added';
$method = 'REQUEST';
break;
case MSG_REJECTED:
$action = 'Rejected';
$pref = 'Response';
$method = 'REPLY';
break;
case MSG_TENTATIVE:
$action = 'Tentative';
$pref = 'Response';
$method = 'REPLY';
break;
case MSG_ACCEPTED:
$action = 'Accepted';
$pref = 'Response';
$method = 'REPLY';
break;
case MSG_DELEGATED:
$action = 'Delegated';
$pref = 'Response';
$method = 'REPLY';
break;
case MSG_ALARM:
$action = 'Alarm';
$pref = 'Alarm';
break;
case MSG_REQUEST:
$method = 'REQUEST';
break;
default:
$method = 'PUBLISH';
}
if(is_null($prefs))
{
$prefs = $this->cal_prefs;
}
$msg = $prefs['notify'.$pref];
if (empty($msg))
{
$msg = $prefs['notifyAdded']; // use a default
}
//error_log(__METHOD__."($msg_type) action='$action', $msg='$msg' returning '$method'");
return $method ?? null;
}
/**
* sends update-messages to certain participants of an event
*
* @param int $msg_type type of the notification: MSG_ADDED, MSG_MODIFIED, MSG_ACCEPTED, ...
* @param array $to_notify numerical user-ids as keys (!) (value is not used)
* @param array $old_event Event before the change
* @param array $new_event =null Event after the change
* @param int|string $user =0 User/participant who started the notify, default current user
* @param array $alarm =null values for "offset", "start", etc.
* @parqm boolean $ignore_prefs Ignore the user's preferences about when they want to be notified and send it
* @return bool true/false
*/
function send_update($msg_type, $to_notify, $old_event, $new_event=null, $user=0, ?array $alarm=null, $ignore_prefs=false)
{
Api\Egw::on_shutdown([$this, '_send_update'], func_get_args());
}
/**
* Check event is (ending) in the future
*
* @param array $event
* @param int $grace_time
* @return bool
*/
public function eventInFuture(array $event, int $grace_time=10) : bool
{
if ($event['recur_type'] != MCAL_RECUR_NONE)
{
return empty($event['recur_enddate']) || $event['recur_enddate'] > $this->now_su - $grace_time;
}
return $event['end'] > $this->now_su - $grace_time;
}
/**
* sends update-messages to certain participants of an event
*
* @param int $msg_type type of the notification: MSG_ADDED, MSG_MODIFIED, MSG_ACCEPTED, ...
* @param array $to_notify numerical user-ids as keys (!) (value is not used)
* @param array $old_event Event before the change
* @param array $new_event =null Event after the change
* @param int|string $user =0 User/participant who started the notify, default current user
* @param array $alarm =null values for "offset", "start", etc.
* @parqm boolean $ignore_prefs Ignore the user's preferences about when they want to be notified and send it
* @return bool true/false
*/
function _send_update($msg_type, $to_notify, $old_event, $new_event=null, $user=0, ?array $alarm=null, $ignore_prefs = false)
{
//error_log(__METHOD__."($msg_type, ".json_encode($to_notify).", ..., ".json_encode($new_event).", ...)");
if (!is_array($to_notify))
{
$to_notify = array();
}
$notify_externals = $new_event ? ($new_event['##notify_externals']??null) : ($old_event['##notify_externals']??null);
$disinvited = $msg_type == MSG_DISINVITE ? array_keys($to_notify) : array();
$owner = $old_event ? $old_event['owner'] : $new_event['owner'];
if($owner && !isset($to_notify[$owner]) && $msg_type != MSG_ALARM)
{
$to_notify[$owner] = 'OCHAIR'; // always include the event-owner
}
// ignore events in the past (give a tolerance of 10 seconds for the script)
if($new_event && !$this->eventInFuture($new_event) || !$new_event && $old_event && !$this->eventInFuture($old_event))
{
error_log(__METHOD__."($msg_type, ".json_encode($to_notify).", ..., ".json_encode($new_event).", ...) --> ignoring event in the past: start=".
date('Y-m-d H:i:s', ($new_event ?: $old_event)['start'])." < ".date('Y-m-d H:i:s', $this->now_su-10));
return False;
}
// check if default timezone is set correctly to server-timezone (ical-parser messes with it!!!)
if($GLOBALS['egw_info']['server']['server_timezone'] && ($tz = date_default_timezone_get()) != $GLOBALS['egw_info']['server']['server_timezone'])
{
$restore_tz = $tz;
date_default_timezone_set($GLOBALS['egw_info']['server']['server_timezone']);
}
$temp_user = $GLOBALS['egw_info']['user']; // save user-date of the enviroment to restore it after
if (!$user)
{
$user = $temp_user['account_id'];
}
$lang = $GLOBALS['egw_info']['user']['preferences']['common']['lang'];
if ($GLOBALS['egw']->preferences->account_id != $user)
{
// Get correct preferences
$GLOBALS['egw']->preferences->__construct(is_numeric($user) ? $user : $temp_user['account_id']);
$GLOBALS['egw_info']['user']['preferences'] = $GLOBALS['egw']->preferences->read_repository();
// If target user/participant is not an account, try to get good notification message
if(!is_numeric($user))
{
$res_info = $this->resource_info($user);
$title = $res_info['name'] ?: Link::title($res_info['app'], $res_info['res_id']) ?: $res_info['res_id'] ?: $user;
$GLOBALS['egw']->preferences->values['fullname'] = $GLOBALS['egw']->preferences->values['lastname'] = $title;
$GLOBALS['egw']->preferences->values['firstname'] = '';
$msg = $GLOBALS['egw']->preferences->user['calendar']['notifyResponse'] ?: $GLOBALS['egw']->preferences->default['calendar']['notifyResponse'] ?: $GLOBALS['egw']->preferences->forced['calendar']['notifyResponse'];
$GLOBALS['egw_info']['user']['preferences']['calendar']['notifyResponse'] = $GLOBALS['egw']->preferences->parse_notify(
$msg
);
}
}
$senderid = $this->user;
$event = $msg_type == MSG_ADDED || $msg_type == MSG_MODIFIED ? $new_event : $old_event;
// add all group-members to the notification, unless they are already participants
foreach($to_notify as $userid => $statusid)
{
if (is_numeric($userid) && $GLOBALS['egw']->accounts->get_type($userid) == 'g' &&
($members = $GLOBALS['egw']->accounts->members($userid, true)))
{
foreach($members as $member)
{
if (!isset($to_notify[$member]))
{
$to_notify[$member] = 'G'; // Group-invitation
}
}
}
}
// unless we notify externals about everything aka 'responses'
// we will notify only an external chair, if only one exists
if (($notify_externals ?: $GLOBALS['egw_info']['user']['calendar']['notify_externals'] ?? null) !== 'responses')
{
// check if we have *only* an external chair
$chair = null;
foreach($to_notify as $userid => $statusid)
{
$res_info = $quantity = $role = null;
calendar_so::split_status($statusid, $quantity, $role);
if ($role == 'CHAIR' && (empty($chair) || !is_numeric($chair)))
{
$chair = $userid;
}
}
// *only* an external chair --> do not notify anyone, but the external chair and the current user
if (!empty($chair) && !is_numeric($chair))
{
$to_notify = array($chair => $to_notify[$chair])+
(isset($to_notify[$user]) ? array($user => $to_notify[$user]) : array());
}
}
// Event is passed in user time, make sure that's taken into account for date calculations
$user_prefs = $GLOBALS['egw_info']['user']['preferences'];
$date = new Api\DateTime('now',new DateTimeZone($user_prefs['common']['tz']));
$startdate = new Api\DateTime($event['start'], new DateTimeZone($user_prefs['common']['tz']));
$enddate = new Api\DateTime($event['end'], new DateTimeZone($user_prefs['common']['tz']));
$modified = new Api\DateTime($event['modified'], new DateTimeZone($user_prefs['common']['tz']));
if ($old_event) $olddate = new Api\DateTime($old_event['start'], new DateTimeZone($user_prefs['common']['tz']));
$rdates = array_map(static function($rdate) use ($user_prefs)
{
return new Api\DateTime($rdate, new DateTimeZone($user_prefs['common']['tz']));
}, $event['recur_rdates'] ?? []);
$recur_date = isset($event['recur_date']) ? new Api\DateTime($event['recur_date'], new DateTimeZone($user_prefs['common']['tz'])) : null;
//error_log(__METHOD__."() date_default_timezone_get()=".date_default_timezone_get().", user-timezone=".Api\DateTime::$user_timezone->getName().", startdate=".$startdate->format().", enddate=".$enddate->format().", updated=".$modified->format().", olddate=".($olddate ? $olddate->format() : ''));
$owner_prefs = $ics = null;
foreach($to_notify as $userid => $statusid)
{
$res_info = $quantity = $role = null;
calendar_so::split_status($statusid, $quantity, $role);
if ($this->debug > 0) error_log(__METHOD__." trying to notify $userid, with $statusid ($role)");
// hack to add videoconference in event description, by always setting $cleared_event
// Can't re-load, if we're notifying of a cancelled recurrence we'll load the next event in the series
$cleared_event = $event;
if (!is_numeric($userid))
{
$res_info = $this->resource_info($userid);
// check if responsible for a resource has read rights on event (might be private!)
if ($res_info['app'] == 'resources' && $res_info['responsible'] &&
!$this->check_perms(Acl::READ, $event, 0, 'ts', null, $res_info['responsible']))
{
// --> use only details from (private-)cleared event only containing resource ($userid)
// reading server timezone, to be able to use cleared event for iCal generation further down
//$cleared_event = $this->read($event['id'], null, true, 'server');
$this->clear_private_infos($cleared_event, array($userid));
}
$userid = $res_info['responsible'] ?? null;
if (empty($userid)) // no resource responsible: $userid===0
{
if (empty($res_info['email'])) continue; // no way to notify
// check if event-owner wants non-EGroupware users notified
if (is_null($owner_prefs))
{
$preferences = new Api\Preferences($owner);
$owner_prefs = $preferences->read_repository();
if (!empty($notify_externals)) $owner_prefs['calendar']['notify_externals'] = $notify_externals;
}
if ($role != 'CHAIR' && // always notify externals CHAIRs
(empty($owner_prefs['calendar']['notify_externals']) ||
$owner_prefs['calendar']['notify_externals'] == 'no'))
{
continue;
}
$userid = $res_info['email'];
}
}
if ($statusid == 'R' || $GLOBALS['egw']->accounts->get_type($userid) == 'g')
{
continue; // dont notify rejected participants or groups
}
if ($userid != $GLOBALS['egw_info']['user']['account_id'] ||
($userid == $GLOBALS['egw_info']['user']['account_id'] &&
$user_prefs['calendar']['receive_own_updates']==1) ||
$msg_type == MSG_ALARM)
{
$tfn = $tln = $lid = null; //cleanup of lastname and fullname (in case they are set in a previous loop)
if (is_numeric($userid))
{
$preferences = new Api\Preferences($userid);
$GLOBALS['egw_info']['user']['preferences'] = $part_prefs = $preferences->read_repository();
$fullname = Api\Accounts::username($userid);
$tfn = Api\Accounts::id2name($userid,'account_firstname');
$tln = Api\Accounts::id2name($userid,'account_lastname');
}
else // external email address: use Api\Preferences of event-owner, plus some hardcoded settings (eg. ical notification)
{
if (is_null($owner_prefs))
{
$preferences = new Api\Preferences($owner);
$GLOBALS['egw_info']['user']['preferences'] = $owner_prefs = $preferences->read_repository();
if (!empty($notify_externals)) $owner_prefs['calendar']['notify_externals'] = $notify_externals;
}
$part_prefs = $owner_prefs;
$part_prefs['calendar']['receive_updates'] = $owner_prefs['calendar']['notify_externals'];
$part_prefs['calendar']['update_format'] = 'ical'; // use ical format
$fullname = $res_info && !empty($res_info['name']) ? $res_info['name'] : $userid;
}
$m_type = $msg_type;
if (!$ignore_prefs && !$this->update_requested($userid, $part_prefs, $m_type, $old_event, $new_event, $role,
$event['participants'][$GLOBALS['egw_info']['user']['account_id']]))
{
//error_log("--> Update/notification NOT requested / ignored");
continue;
}
$action = $notify_msg = null;
$method = $this->msg_type2ical_method($m_type, $action, $notify_msg, $user_prefs['calendar']);
if ($lang !== $part_prefs['common']['lang'])
{
Api\Translation::init();
$lang = $part_prefs['common']['lang'];
}
// Since we're running from cron, make sure notifications uses user's theme (for images)
$GLOBALS['egw_info']['server']['template_set'] = $GLOBALS['egw_info']['user']['preferences']['common']['template_set'];
$event_arr = null;
$details = $this->_get_event_details(isset($cleared_event) ? $cleared_event : $event,
$action, $event_arr, $disinvited);
$details['fullname'] = is_numeric($user) ? Api\Accounts::username($user) : $fullname;
$details['to-fullname'] = $fullname;
$details['to-firstname'] = isset($tfn)? $tfn: '';
$details['to-lastname'] = isset($tln)? $tln: '';
// event is in user-time of current user, now we need to calculate the tz-difference to the notified user and take it into account
if (!isset($part_prefs['common']['tz'])) $part_prefs['common']['tz'] = $GLOBALS['egw_info']['server']['server_timezone'];
try
{
$timezone = new DateTimeZone($part_prefs['common']['tz']);
}
catch(Exception $e)
{
$timezone = new DateTimeZone($GLOBALS['egw_info']['server']['server_timezone']);
}
$timeformat = $part_prefs['common']['timeformat'];
switch($timeformat)
{
case '24':
$timeformat = 'H:i';
break;
case '12':
$timeformat = 'h:i a';
break;
}
$timeformat = $part_prefs['common']['dateformat'] . ', ' . $timeformat;
// Set dates:
// $details in "preference" format, $cleared_event as DateTime so calendar_ical->exportVCal() gets
// the times right, since it assumes a timestamp is in server time
$cleared_event['start'] = $startdate->setTimezone($timezone);
$details['startdate'] = $startdate->format($timeformat);
$cleared_event['end'] = $enddate->setTimezone($timezone);
$details['enddate'] = $enddate->format($timeformat);
$cleared_event['updated'] = $modified->setTimezone($timezone);
$details['updated'] = $modified->format($timeformat) . ', ' . Api\Accounts::username($event['modifier']);
// we also need to "fix" timezone for rdates, to not get wrong times!
$cleared_event['recur_rdates'] = array_map(static function ($rdate) use ($timezone)
{
return $rdate->setTimezone($timezone);
}, $rdates);
if (isset($recur_date))
{
$cleared_event['recur_date'] = $recur_date->setTimezone($timezone);
$details['recur_date'] = $recur_date->format($timeformat);
}
// Current date doesn't need to go into the cleared event, just for details
$date->setTimezone($timezone);
$details['date'] = $date->format($timeformat);
if ($old_event != False)
{
$olddate->setTimezone($timezone);
$details['olddate'] = $olddate->format($timeformat);
}
// generate a personal videoconference url, if we need one
if (!empty($event['##videoconference']) && !calendar_hooks::isVideoconferenceDisabled())
{
$avatar = new Api\Contacts\Photo(is_numeric($userid) ? "account:$userid" :
(isset($res_info) && $res_info['type'] === 'c' ? $res_info['res_id'] : $userid),
// disable sharing links currently, as sharing links from a different EGroupware user destroy the session
true);
$details['videoconference'] = EGroupware\Status\Videoconference\Call::genMeetingUrl($event['##videoconference'], [
'title' => $event['title'],
'name' => $fullname,
'email' => is_numeric($userid) ? Api\Accounts::id2name($userid, 'account_email') : $userid,
'avatar' => (string)$avatar,
'account_id' => $userid,
'cal_id' => $details['id'],
'notify_only' => true
], ['participants' =>array_filter($event['participants'], function($key){return is_numeric($key);}, ARRAY_FILTER_USE_KEY)], $startdate, $enddate);
$event_arr['videoconference'] = [
'field' => lang('Video Conference'),
'data' => $details['videoconference'],
];
// hack to add videoconference-url to ical, only if description was NOT cleared
if (isset($cleared_event['description']))
{
$cleared_event['description'] = lang('Video conference').': '.$details['videoconference']."\n\n".$event['description'];
}
}
//error_log(__METHOD__."() userid=$userid, timezone=".$timezone->getName().", startdate=$details[startdate], enddate=$details[enddate], updated=$details[updated], olddate=$details[olddate]");
list($subject,$notify_body) = explode("\n",$GLOBALS['egw']->preferences->parse_notify($notify_msg,$details),2);
// alarm is NOT an iCal method, therefore we have to use extened (no iCal)
switch($msg_type == MSG_ALARM ? 'extended' : $part_prefs['calendar']['update_format'])
{
case 'ical':
if (is_null($ics) || $m_type != $msg_type || $event['##videoconference']) // need different ical for organizer notification or videoconference join urls
{
$calendar_ical = new calendar_ical();
$calendar_ical->setSupportedFields('full'); // full iCal fields+event TZ
// we need to pass $event[id] so iCal class reads event again,
// as event is in user TZ, but iCal class expects server TZ!
$ics = $calendar_ical->exportVCal([$cleared_event],
'2.0', $method, $cleared_event['recur_date'] ?? null,
'', 'utf-8', $method == 'REPLY' ? $user : 0
);
unset($calendar_ical);
}
$attachment = array(
'string' => $ics,
'filename' => 'cal.ics',
'encoding' => '8bit',
'type' => 'text/calendar; method='.$method,
);
if ($m_type != $msg_type) unset($ics);
$subject = isset($cleared_event) ? $cleared_event['title'] : $event['title'];
// fall through
case 'extended':
$details_body = lang('Event Details follow').":\n";
foreach($event_arr as $key => $val)
{
if(!empty($details[$key]))
{
switch($key)
{
case 'access':
case 'priority':
case 'link':
case 'description':
case 'title':
break;
default:
$details_body .= sprintf("%-20s %s\n",$val['field'].':',$details[$key]);
break;
}
}
}
break;
}
// send via notification_app
if($GLOBALS['egw_info']['apps']['notifications']['enabled'])
{
try {
//error_log(__METHOD__."() notifying $userid from $senderid: $subject");
$notification = new notifications();
$notification->set_receivers(array($userid));
$notification->set_sender($senderid);
$notification->set_subject($subject);
// as we want ical body to be just description, we can NOT set links, as they get appended to body
if ($part_prefs['calendar']['update_format'] != 'ical')
{
$notification->set_message($notify_body."\n\n".$details['description']."\n\n".$details_body);
$notification->set_links(array($details['link_arr']));
}
else
{
// iCal: description need to be separated from body by fancy separator
$notification->set_message($notify_body."\n\n".$details_body."\n*~*~*~*~*~*~*~*~*~*\n\n".$details['description']);
}
// popup notifiactions: set subject, different message (without separator) and (always) links
$notification->set_popupsubject($subject);
if ($method == 'REQUEST')
{
// Add ACCEPT|REJECT|TENTATIVE actions
$notification->set_popupdata('calendar', array(
'event_id' => $event['id'],
'user_id' => $userid,
'type' => $m_type,
'id' => $event['id'],
'app' => 'calendar',
'videoconference' => $details['videoconference'],
), $event['id']);
}
if ($m_type === MSG_ALARM)
{
$notification->set_popupdata('calendar',
array('egw_pr_notify' => 1,
'type' => $m_type,
'videoconference' => $details['videoconference'],
'account_id' => $senderid,
'name' => Api\Accounts::username($senderid)
)
+ ($alarm ? ['alarm-offset' => (int)$alarm['offset']] : []), $event['id']);
}
$notification->set_popupmessage($subject."\n\n".$notify_body."\n\n".$details['description']."\n\n".$details_body."\n\n");
$notification->set_popuplinks(array($details['link_arr']+array('app'=>'calendar')));
if(!empty($attachment)) { $notification->set_attachments(array($attachment)); }
$notification->send();
$errors = notifications::errors(true);
}
catch (Exception $exception) {
$errors = [$exception->getMessage()];
continue;
}
}
else
{
$errors = [lang('Can not send any notifications because notifications app is not installed!')];
}
foreach($errors as $error)
{
error_log(__METHOD__."() Error notifying $userid from $senderid: $subject: $error");
// send notification errors via push to current user (not session, as alarms send via async job have none!)
(new Api\Json\Push($GLOBALS['egw_info']['user']['account_id']))->message(
lang('Error notifying %1', !is_numeric($userid) ? $userid :
Api\Accounts::id2name($userid, 'account_fullname').' <'.Api\Accounts::id2name($userid, 'account_email').'>').
"\n".$subject."\n".$error, 'error');
}
}
}
// restore the enviroment (preferences->read_repository() sets the timezone!)
$GLOBALS['egw_info']['user'] = $temp_user;
if ($GLOBALS['egw']->preferences->account_id != $temp_user['account_id'])
{
$GLOBALS['egw']->preferences->__construct($temp_user['account_id']);
$GLOBALS['egw_info']['user']['preferences'] = $GLOBALS['egw']->preferences->read_repository();
//echo "<p>".__METHOD__."() restored enviroment of #$temp_user[account_id] $temp_user[account_fullname]: tz={$GLOBALS['egw_info']['user']['preferences']['common']['tz']}</p>\n";
}
else
{
// Loading other user's preferences can change current user's tz
$GLOBALS['egw']->preferences->check_set_tz_offset();
}
if ($lang !== $GLOBALS['egw_info']['user']['preferences']['common']['lang'])
{
Api\Translation::init();
}
// restore timezone, in case we had to reset it to server-timezone
if (!empty($restore_tz)) date_default_timezone_set($restore_tz);
return true;
}
function get_update_message($event,$added)
{
$nul = null;
$details = $this->_get_event_details($event,$added ? lang('Added') : lang('Modified'),$nul);
$notify_msg = $this->cal_prefs[$added || empty($this->cal_prefs['notifyModified']) ? 'notifyAdded' : 'notifyModified'];
return explode("\n",$GLOBALS['egw']->preferences->parse_notify($notify_msg,$details),2);
}
/**
* Function called via async service, when an alarm is to be send
*
* @param array $alarm array with keys owner, cal_id, all
* @return boolean
*/
function send_alarm($alarm)
{
//echo "<p>bocalendar::send_alarm("; print_r($alarm); echo ")</p>\n";
$GLOBALS['egw_info']['user']['account_id'] = $this->owner = $alarm['owner'];
$event_time_user = Api\DateTime::server2user($alarm['time'] + $alarm['offset']); // alarm[time] is in server-time, read requires user-time
if (!$alarm['owner'] || !$alarm['cal_id'] || !($event = $this->read($alarm['cal_id'],$event_time_user)))
{
return False; // event not found
}
if ($alarm['all'])
{
$to_notify = $event['participants'];
}
elseif ($this->check_perms(Acl::READ,$event)) // checks agains $this->owner set to $alarm[owner]
{
$to_notify[$alarm['owner']] = 'A';
}
else
{
return False; // no rights
}
// need to load calendar translations and set currentapp, so calendar can reload a different lang
Api\Translation::add_app('calendar');
$GLOBALS['egw_info']['flags']['currentapp'] = 'calendar';
$ret = $this->_send_update(MSG_ALARM, $to_notify, $event, False, $alarm['owner'], $alarm);
// create a new alarm for recuring events for the next event, if one exists
if (!empty($event['recur_type']) && ($event = $this->read($alarm['cal_id'],$event_time_user+1)))
{
$alarm['time'] = $this->date2ts($event['start']) - $alarm['offset'];
unset($alarm['times']);
unset($alarm['next']);
unset($alarm['keep_time']); // need to remove the keep_time, as otherwise the alarm would be deleted automatically
//error_log(__METHOD__."() moving alarm to next recurrence ".array2string($alarm));
$this->save_alarm($alarm['cal_id'], $alarm, false); // false = do NOT update timestamp, as nothing changed for iCal clients
}
return $ret;
}
/**
* saves an event to the database, does NOT do any notifications, see calendar_boupdate::update for that
*
* This methode converts from user to server time and handles the insertion of users and dates of repeating events
*
* @param array $event
* @param boolean $ignore_acl =false should we ignore the acl
* @param boolean $updateTS =true update the content history of the event
* Please note: you should ALLWAYS update timestamps, as they are required for sync!
* @return int|boolean $cal_id > 0 or false on error (eg. permission denied)
*/
function save($event,$ignore_acl=false,$updateTS=true)
{
//error_log(__METHOD__.'('.array2string($event).", $ignore_acl, $updateTS)");
// check if user has the permission to update / create the event
if (!$ignore_acl && (!empty($event['id']) && !$this->check_perms(Acl::EDIT,$event['id']) ||
empty($event['id']) && !$this->check_perms(Acl::EDIT,0,$event['owner']) &&
!$this->check_perms(Acl::ADD,0,$event['owner'])))
{
return false;
}
if (!empty($event['id']))
{
// invalidate the read-cache if it contains the event we store now
if ($event['id'] == self::$cached_event['id']) self::$cached_event = array();
$old_event = $this->read($event['id'], $event['recurrence'], $ignore_acl, 'server');
}
else
{
$old_event = null;
}
if (!isset($event['whole_day'])) $event['whole_day'] = $this->isWholeDay($event);
$this->check_reset_statuses($event, $old_event);
// set recur-enddate/range-end to real end-date of last recurrence
if (!empty($event['recur_type']) && (!empty($event['recur_enddate']) || $event['recur_type'] == calendar_rrule::RDATE) && $event['start'])
{
$event['recur_enddate'] = new Api\DateTime($event['recur_enddate'], calendar_timezones::DateTimeZone($event['tzid']));
$event['recur_enddate']->setTime(23,59,59);
$rrule = calendar_rrule::event2rrule($event, true, Api\DateTime::$user_timezone->getName());
$rrule->rewind();
$enddate = $rrule->current();
do
{
$rrule->next_no_exception();
$occurrence = $rrule->current();
}
while ($rrule->validDate($event['whole_day']) && ($enddate = $occurrence));
if ($enddate)
{
$enddate->modify(($event['end'] - $event['start']).' second');
$event['recur_enddate'] = $enddate->format('ts');
}
//error_log(__METHOD__."($event[title]) start=".Api\DateTime::to($event['start'],'string').', end='.Api\DateTime::to($event['end'],'string').', range_end='.Api\DateTime::to($event['recur_enddate'],'string'));
}
$save_event = $event;
if ($event['whole_day'])
{
if (!empty($event['start']))
{
$time = $this->so->startOfDay(new Api\DateTime($event['start'], Api\DateTime::$user_timezone));
$event['start'] = Api\DateTime::to($time, 'ts');
$save_event['start'] = $time;
}
if (!empty($event['end']))
{
$time = new Api\DateTime($event['end'], Api\DateTime::$user_timezone);
// Check to see if switching timezones changes the date, we'll need to adjust for that
$end_event_timezone = clone $time;
$time->setServer();
$delta = (int)$end_event_timezone->format('z') - (int)$time->format('z');
$time->add("$delta days");
$time->setTime(23, 59, 59);
$event['end'] = Api\DateTime::to($time, 'ts');
$save_event['end'] = $time;
}
if (!empty($event['recurrence']))
{
$time = $this->so->startOfDay(new Api\DateTime($event['recurrence'], Api\DateTime::$user_timezone));
$event['recurrence'] = Api\DateTime::to($time, 'ts');
}
if (!empty($event['recur_enddate']))
{
// all-day events are handled in server time, but here (BO) it's in user time
$time = new Api\DateTime($event['recur_enddate'], Api\DateTime::$user_timezone);
$time->setTime(23, 59, 59);
// Check to see if switching timezones changes the date, we'll need to adjust for that
$enddate_event_timezone = clone $time;
$time->setServer();
$delta = (int)$enddate_event_timezone->format('z') - (int)$time->format('z');
$time->add("$delta days");
//$time->setServer();
$time->setTime(23, 59, 59);
$event['recur_enddate'] = $save_event['recur_enddate'] = $time;
}
$timestamps = array('modified','created');
// all-day events are handled in server time
// $event['tzid'] = $save_event['tzid'] = Api\DateTime::$server_timezone->getName();
}
else
{
$timestamps = array('start','end','modified','created','recur_enddate','recurrence');
}
// we run all dates through date2ts, to adjust to server-time and the possible date-formats
foreach($timestamps as $ts)
{
// we convert here from user-time to timestamps in server-time!
if (isset($event[$ts])) $event[$ts] = $event[$ts] ? $this->date2ts($event[$ts],true) : 0;
}
// convert tzid name to integer tz_id, of set user default
if (empty($event['tzid']) || !($event['tz_id'] = calendar_timezones::tz2id($event['tzid'])))
{
$event['tz_id'] = calendar_timezones::tz2id($event['tzid'] = Api\DateTime::$user_timezone->getName());
}
// same with the recur exceptions and rdates
foreach(['recur_exception', 'recur_rdates'] as $name)
{
if (!is_array($event[$name] ?? null)) continue;
foreach($event[$name] as &$date)
{
if ($event['whole_day'])
{
$time = $this->so->startOfDay(new Api\DateTime($date, Api\DateTime::$user_timezone));
$date = Api\DateTime::to($time, 'ts');
}
else
{
$date = $this->date2ts($date,true);
}
}
unset($date);
}
// same with the alarms
if (isset($event['alarm']) && is_array($event['alarm']) && isset($event['start']))
{
// Expand group invitations so we don't lose individual alarms
$expanded = $event;
$this->enum_groups($expanded);
foreach($event['alarm'] as $id => &$alarm)
{
if(!empty($alarm['time']))
{
$alarm['time'] = $this->date2ts($alarm['time'], true); // user to server-time
}
// remove alarms belonging to not longer existing or rejected participants
if (!empty($alarm['owner']) && isset($expanded['participants']))
{
// Don't auto-delete alarm if for all users
if(!empty($alarm['all'])) continue;
$status = $expanded['participants'][$alarm['owner']];
if (!isset($status) || calendar_so::split_status($status) === 'R')
{
unset($event['alarm'][$id]);
$this->so->delete_alarm($id);
//error_log(__LINE__.': '.__METHOD__."(".array2string($event).") deleting alarm=".array2string($alarm).", $status=".array2string($alarm));
}
}
else if (empty($alarm['owner']))
{
$alarm['owner'] = $event['owner'];
}
}
}
// update all existing alarm times, in case alarm got moved and alarms are not include in $event
if ($old_event && is_array($old_event['alarm']) && isset($event['start']))
{
foreach($old_event['alarm'] as $id => &$alarm)
{
if (!isset($event['alarm'][$id]))
{
$alarm['time'] = $event['start'] - $alarm['offset'];
if ($alarm['time'] < time()) calendar_so::shift_alarm($event, $alarm);
// remove (not store) alarms belonging to not longer existing or rejected participants
$status = isset($event['participants']) ? $event['participants'][$alarm['owner']] :
$old_event['participants'][$alarm['owner']];
if (!$alarm['owner'] || isset($status) && calendar_so::split_status($status) !== 'R')
{
$this->so->save_alarm($event['id'], $alarm);
//error_log(__LINE__.': '.__METHOD__."() so->save_alarm($event[id], ".array2string($alarm).")");
}
else
{
$this->so->delete_alarm($id);
//error_log(__LINE__.': '.__METHOD__."(".array2string($event).") deleting alarm=".array2string($alarm).", $status=".array2string($alarm));
}
}
}
}
// you should always update modification time (ctag depends on it!)
if ($updateTS)
{
$event['modified'] = $save_event['modified'] = $this->now;
$event['modifier'] = $save_event['modifier'] = $this->user;
}
if (empty($event['id']) && (!isset($event['created']) || $event['created'] > $this->now))
{
$event['created'] = $save_event['created'] = $this->now;
$event['creator'] = $save_event['creator'] = $this->user;
}
$set_recurrences = !$old_event ? false :
abs(Api\DateTime::to($event['recur_enddate'] ?? null, 'utc') - Api\DateTime::to($old_event['recur_enddate'] ?? null, 'utc')) > 1 ||
count($old_event['recur_exception'] ?? []) != count($event['recur_exception'] ?? []) ||
count($old_event['recur_rdates'] ?? []) != count($event['recur_rdates'] ?? []);
$set_recurrences_start = 0;
if (($cal_id = $this->so->save($event,$set_recurrences,$set_recurrences_start,0,$event['etag'])) && $set_recurrences && !empty($event['recur_type']))
{
$save_event['id'] = $cal_id;
// unset participants to enforce the default stati for all added recurrences
unset($save_event['participants']);
$this->set_recurrences($save_event, $set_recurrences_start);
}
// create links for new participants from addressbook, if configured
if($cal_id && !empty($GLOBALS['egw_info']['server']['link_contacts']) && !empty($save_event['participants']))
{
foreach($save_event['participants'] as $uid => $status)
{
$user_type = $user_id = null;
calendar_so::split_user($uid, $user_type, $user_id);
if($user_type == 'c' && (!$old_event || !isset($old_event['participants'][$uid])))
{
Link::link('calendar', $cal_id, 'addressbook', $user_id);
}
}
}
// Update history
$tracking = new calendar_tracking($this);
if(empty($event['id']) && !empty($cal_id))
{
$event['id'] = $cal_id;
$save_event['id'] = $cal_id;
}
// we run all dates through date2ts, to adjust to server-time and the possible date-formats
// This is done here to avoid damaging the actual event when saving, but the old event is in server-time
foreach ($timestamps as $ts)
{
// we convert here from user-time to timestamps in server-time!
if (isset($save_event[$ts])) $save_event[$ts] = $save_event[$ts] ? calendar_bo::date2ts($save_event[$ts], true) : 0;
}
foreach(['start', 'end', 'recur_enddate'] as $ts)
{
if(isset($save_event[$ts]) && is_object($save_event[$ts]))
{
$save_event[$ts] = $save_event[$ts]->format('ts');
}
}
$tracking->track($save_event, $old_event ?: null);
return $cal_id;
}
/**
* Check if the current user has the necessary ACL rights to change the status of $uid
*
* For contacts we use edit rights of the owner of the event (aka. edit rights of the event).
*
* @param int|string $uid account_id or 1-char type-identifer plus id (eg. c15 for addressbook entry #15)
* @param array|int $event event array or id of the event
* @return boolean
*/
function check_status_perms($uid,$event)
{
if ($uid[0] == 'c' || $uid[0] == 'e') // for contact we use the owner of the event
{
if (!is_array($event) && !($event = $this->read($event))) return false;
return $this->check_perms(Acl::EDIT,0,$event['owner']);
}
// check if we have a category Acl for the event or not (null)
$access = $this->check_cat_acl(self::CAT_ACL_STATUS,$event);
if (!is_null($access))
{
return $access;
}
// no access or denied access because of category acl --> regular check
if (!is_numeric($uid)) // this is eg. for resources (r123)
{
$resource = $this->resource_info($uid);
return Acl::EDIT & $resource['rights'];
}
if (!is_array($event) && !($event = $this->read($event))) return false;
// regular user and groups (need to check memberships too)
if (!isset($event['participants'][$uid]))
{
$memberships = $GLOBALS['egw']->accounts->memberships($uid,true);
}
$memberships[] = $uid;
return array_intersect($memberships, array_keys($event['participants'] ?? [])) && $this->check_perms(Acl::EDIT,0,$uid);
}
/**
* Check if current user has a certain right on the categories of an event
*
* Not having the given right for a single category, means not having it!
*
* @param int $right self::CAT_ACL_{ADD|STATUS}
* @param int|array $event
* @return boolean true if use has the right, false if not
* @return boolean false=access denied because of cat acl, true access granted because of cat acl,
* null = cat has no acl
*/
function check_cat_acl($right,$event)
{
if (!is_array($event)) $event = $this->read($event);
$ret = null;
if ($event['category'])
{
foreach(is_array($event['category']) ? $event['category'] : explode(',',$event['category']) as $cat_id)
{
$access = self::has_cat_right($right,$cat_id,$this->user);
if ($access === true)
{
$ret = true;
break;
}
if ($access === false)
{
$ret = false; // cat denies access --> check further cats
}
}
}
//echo "<p>".__METHOD__."($event[id]: $event[title], $right) = ".array2string($ret)."</p>\n";
return $ret;
}
/**
* Array with $cat_id => $rights pairs for current user (no entry means, cat is not limited by ACL!)
*
* @var array
*/
private static $cat_rights_cache;
/**
* Get rights for a given category id
*
* @param int $cat_id =null null to return array with all cats
* @return array with account_id => right pairs
*/
public static function get_cat_rights($cat_id=null)
{
if (!isset(self::$cat_rights_cache))
{
self::$cat_rights_cache = Api\Cache::getSession('calendar','cat_rights',
array($GLOBALS['egw']->acl,'get_location_grants'),array('L%','calendar'));
}
//echo "<p>".__METHOD__."($cat_id) = ".array2string($cat_id ? self::$cat_rights_cache['L'.$cat_id] : self::$cat_rights_cache)."</p>\n";
return $cat_id ? self::$cat_rights_cache['L'.$cat_id] : self::$cat_rights_cache;
}
/**
* Set rights for a given single category and user
*
* @param int $cat_id
* @param int $user
* @param int $rights self::CAT_ACL_{ADD|STATUS} or'ed together
*/
public static function set_cat_rights($cat_id,$user,$rights)
{
//echo "<p>".__METHOD__."($cat_id,$user,$rights)</p>\n";
if (!isset(self::$cat_rights_cache)) self::get_cat_rights($cat_id);
if ((int)$rights != (int)self::$cat_rights_cache['L'.$cat_id][$user])
{
if ($rights)
{
self::$cat_rights_cache['L'.$cat_id][$user] = $rights;
$GLOBALS['egw']->acl->add_repository('calendar','L'.$cat_id,$user,$rights);
}
else
{
unset(self::$cat_rights_cache['L'.$cat_id][$user]);
if (!self::$cat_rights_cache['L'.$cat_id]) unset(self::$cat_rights_cache['L'.$cat_id]);
$GLOBALS['egw']->acl->delete_repository('calendar','L'.$cat_id,$user);
}
Api\Cache::setSession('calendar','cat_rights',self::$cat_rights_cache);
}
}
/**
* Check if current user has a given right on a category (if it's restricted!)
*
* @param int $cat_id
* @return boolean false=access denied because of cat acl, true access granted because of cat acl,
* null = cat has no acl
*/
public static function has_cat_right($right,$cat_id,$user)
{
static $cache=null;
if (!isset($cache[$cat_id]))
{
$all = $own = 0;
$cat_rights = self::get_cat_rights($cat_id);
if (!is_null($cat_rights))
{
static $memberships=null;
if (is_null($memberships))
{
$memberships = $GLOBALS['egw']->accounts->memberships($user,true) ?: [];
$memberships[] = $user;
}
foreach($cat_rights as $uid => $value)
{
$all |= $value;
if (in_array($uid,$memberships)) $own |= $value;
}
}
foreach(array(self::CAT_ACL_ADD,self::CAT_ACL_STATUS) as $mask)
{
$cache[$cat_id][$mask] = !($all & $mask) ? null : !!($own & $mask);
}
}
//echo "<p>".__METHOD__."($right,$cat_id) all=$all, own=$own returning ".array2string($cache[$cat_id][$right])."</p>\n";
return $cache[$cat_id][$right];
}
/**
* set the status of one participant for a given recurrence or for all recurrences since now (includes recur_date=0)
*
* @param int|array $event event-array or id of the event
* @param string|int $uid account_id or 1-char type-identifer plus id (eg. c15 for addressbook entry #15)
* @param int|char $status numeric status (defines) or 1-char code: 'R', 'U', 'T' or 'A'
* @param int $recur_date =0 date to change, or 0 = all since now
* @param boolean $ignore_acl =false do not check the permisions for the $uid, if true
* @param boolean $updateTS =true update the content history of the event
* DEPRECATED: we always (have to) update timestamp, as they are required for sync!
* @param boolean|"NOPUSH" $skip_notification =false true: send NO notifications, default false = send them,
* "NOPUSH": also do NOT send push notifications / call Link::notifiy(), which still happens for true
* @return int number of changed recurrences
*/
function set_status($event,$uid,$status,$recur_date=0,$ignore_acl=false,$updateTS=true,$skip_notification=false)
{
unset($updateTS);
$cal_id = is_array($event) ? $event['id'] : $event;
//echo "<p>calendar_boupdate::set_status($cal_id,$uid,$status,$recur_date)</p>\n";
if (!$cal_id || (!$ignore_acl && !$this->check_status_perms($uid,$event)))
{
return false;
}
$quantity = $role = null;
calendar_so::split_status($status, $quantity, $role);
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"($cal_id, $uid, $status, $recur_date)\n",3,$this->logfile);
}
$old_event = $this->read($cal_id, $recur_date, $ignore_acl, 'server');
if (($Ok = $this->so->set_status($cal_id,is_numeric($uid)?'u':$uid[0],
is_numeric($uid)?$uid:substr($uid,1),$status,
$recur_date?$this->date2ts($recur_date,true):0,$role)))
{
if ($status == 'R') // remove alarms belonging to rejected participants
{
foreach(is_array($event) && isset($event['alarm']) ? $event['alarm'] : $old_event['alarm'] as $id => $alarm)
{
if ((string)$alarm['owner'] === (string)$uid)
{
$this->so->delete_alarm($id);
//error_log(__LINE__.': '.__METHOD__."(".array2string($event).", '$uid', '$status', ...) deleting alarm=".array2string($alarm).", $status=".array2string($alarm));
}
}
}
static $status2msg = array(
'R' => MSG_REJECTED,
'T' => MSG_TENTATIVE,
'A' => MSG_ACCEPTED,
'D' => MSG_DELEGATED,
);
// Reset cached event
static::$cached_event = array();
if (isset($status2msg[$status]) && !$skip_notification)
{
if (!is_array($event)) $event = $this->read($cal_id);
if (isset($recur_date)) $event = $this->read($event['id'],$recur_date); //re-read the actually edited recurring event
$user_id = is_numeric($uid) ? (int)$uid : $uid;
$this->send_update($status2msg[$status],$event['participants'],$event, null, $user_id);
}
// Update history
if (($event = $this->read($cal_id, $recur_date, $ignore_acl, 'server')))
{
$tracking = new calendar_tracking($this);
$tracking->track($event, $old_event ?: null);
}
// notify the link-class about the update, as other apps may be subscribed to it
if ($skip_notification !== "NOPUSH")
{
Link::notify_update('calendar', $cal_id, $event, "update");
}
}
return $Ok;
}
/**
* update the status of all participant for a given recurrence or for all recurrences since now (includes recur_date=0)
*
* @param array $new_event event-array with the new stati
* @param array $old_event event-array with the old stati
* @param int $recur_date =0 date to change, or 0 = all since now
* @param boolean|"NOPUSH" $skip_notification =false true: send NO notifications, default false = send them,
* "NOPUSH": also do NOT send push notifications / call Link::notifiy(), which still happens for true
*/
function update_status($new_event, $old_event , $recur_date=0, $skip_notification=false)
{
if (!isset($new_event['participants'])) return;
// check the old list against the new list
foreach ($old_event['participants'] as $userid => $status)
{
if (!isset($new_event['participants'][$userid])){
// Attendee will be deleted this way
$new_event['participants'][$userid] = 'G';
}
elseif ($new_event['participants'][$userid] == $status)
{
// Same status -- nothing to do.
unset($new_event['participants'][$userid]);
}
}
// write the changes
foreach ($new_event['participants'] as $userid => $status)
{
$this->set_status($old_event, $userid, $status, $recur_date, true, false,$skip_notification);
}
// notify the link-class about the update, as other apps may be subscribed to it
if ($skip_notification !== "NOPUSH")
{
Link::notify_update('calendar',$new_event['id'],$new_event,"update");
}
}
/**
* deletes an event
*
* @param int $cal_id id of the event to delete
* @param int $recur_date =0 if a single event from a series should be deleted, its date
* @param boolean $ignore_acl =false true for no ACL check, default do ACL check
* @param boolean|array|"NOPUSH" $skip_notification =false or array with uid to skip eg. [5,'eemail@example.org']
* "NOPUSH": also do NOT send push notifications / call Link::notifiy(), which still happens for true
* @param boolean $delete_exceptions =true true: delete, false: keep exceptions (with new UID)
* @param int &$exceptions_kept=null on return number of kept exceptions
* @return boolean true on success, false on error (usually permission denied)
*/
function delete($cal_id, $recur_date=0, $ignore_acl=false, $skip_notification=false,
$delete_exceptions=true, &$exceptions_kept=null)
{
//error_log(__METHOD__."(cal_id=$cal_id, recur_date=$recur_date, ignore_acl=$ignore_acl, skip_notifications=$skip_notification)");
if (!($event = $this->read($cal_id,$recur_date)) ||
!$ignore_acl && !$this->check_perms(Acl::DELETE,$event))
{
return false;
}
// Don't send notification if the event has already been deleted
if (!$event['deleted'] && (!$skip_notification || is_array($skip_notification)))
{
$to_notify = !is_array($skip_notification) ? $event['participants'] :
array_diff_key($event['participants'], array_flip($skip_notification));
$this->send_update(MSG_DELETED, $to_notify, $event);
}
if (!$recur_date || empty($event['recur_type']))
{
$config = Api\Config::read('phpgwapi');
if ($event['deleted'])
{
$this->so->delete($cal_id);
// delete all links to the event
Link::unlink(0,'calendar',$cal_id);
}
else
{
// mark all links to the event as deleted, but keep them
Link::unlink(0,'calendar',$cal_id,'','','',true);
$event['deleted'] = $this->now;
$this->save($event, $ignore_acl);
// Actually delete alarms
if (isset($event['alarm']) && is_array($event['alarm']))
{
foreach($event['alarm'] as $id => $alarm)
{
$this->delete_alarm($id, true);
}
}
}
// delete or keep (with new uid) exceptions of a recurring event
if (!empty($event['recur_type']))
{
$exceptions_kept = 0;
foreach ($this->so->get_related($event['uid']) as $id)
{
if ($delete_exceptions)
{
$this->delete($id, 0, $ignore_acl, true);
}
else
{
if (!($exception = $this->read($id))) continue;
$exception['uid'] = Api\CalDAV::generate_uid('calendar', $id);
$exception['reference'] = $exception['recurrence'] = 0;
$msg = null;
$this->update($exception, true, true, false, true, $msg, true);
++$exceptions_kept;
}
}
}
}
else // delete an exception
{
// check if deleted recurrance has alarms (because it's the next recurrance) --> move it to next recurrance
if ($event['alarm'])
{
$next_recurrance = null;
foreach($event['alarm'] as &$alarm)
{
if (($alarm['time'] == $recur_date) || ($alarm['time']+$alarm['offset'] == $recur_date))
{
//error_log(__METHOD__.__LINE__.'->'.array2string($recur_date));
//error_log(__METHOD__.__LINE__.array2string($event));
if (is_null($next_recurrance))
{
$checkdate = $recur_date;
//if ($alarm['time']+$alarm['offset'] == $recur_date) $checkdate = $recur_date + $alarm['offset'];
if (($e = $this->read($cal_id,$checkdate+1)))
{
$next_recurrance = $this->date2ts($e['start']);
}
}
$alarm['time'] = $this->date2ts($next_recurrance, true); // user to server-time
$alarm['cal_id'] = $cal_id;
unset($alarm['times']);
unset($alarm['next']);
$this->so->save_alarm($event['id'], $alarm);
}
}
}
// need to read series master, as otherwise existing exceptions will be lost!
$recur_date = $this->date2ts($event['start']);
//if ($event['alarm']) $alarmbuffer = $event['alarm'];
$event = $this->read($cal_id);
//if (isset($alarmbuffer)) $event['alarm'] = $alarmbuffer;
$event['recur_exception'][] = $recur_date;
$this->save($event);// updates the content-history
// for "real" push, need to push delete of recurrence
if (!Api\Json\Push::onlyFallback() && $skip_notification !== "NOPUSH")
{
Api\Link::notify_update('calendar', $cal_id.':'.$recur_date, $event, 'delete');
}
}
if ($event['reference'])
{
// evtl. delete recur_exception $event['recurrence'] from event with cal_id=$event['reference']
}
return true;
}
/**
* helper for send_update and get_update_message
* @internal
* @param array $event
* @param string $action
* @param array $event_arr
* @param array $disinvited
* @return array
*/
function _get_event_details($event,$action,&$event_arr,$disinvited=array())
{
$details = array( // event-details for the notify-msg
'id' => $event['id'],
'action' => lang($action),
);
$event_arr = $this->event2array($event);
foreach($event_arr as $key => $val)
{
if ($key == 'recur_type') $details['repetition'] = $val['data'];
$details[$key] = $val['data'];
}
$details['participants'] = $details['participants'] ? implode("\n",$details['participants']) : '';
$event_arr['link']['field'] = lang('URL');
$eventStart_arr = $this->date2array($event['start']); // give this as 'date' to the link to pick the right recurrence for the participants state
$link = $GLOBALS['egw_info']['server']['webserver_url'].'/index.php?menuaction=calendar.calendar_uiforms.edit&cal_id='.$event['id'].'&date='.$eventStart_arr['full'].'&no_popup=1&ajax=true';
// if url is only a path, try guessing the rest ;-)
if ($link[0] == '/') $link = Api\Framework::getUrl($link);
$event_arr['link']['data'] = $details['link'] = $link;
/* this is needed for notification-app
* notification-app creates the link individual for
* every user, so we must provide a neutral link-style
* if calendar implements tracking in near future, this part can be deleted
*/
$link_arr = array();
$link_arr['text'] = $event['title'];
$link_arr['view'] = array( 'menuaction' => 'calendar.calendar_uiforms.edit',
'cal_id' => $event['id'],
'date' => $eventStart_arr['full'],
'ajax' => true
);
$link_arr['popup'] = '750x400';
$details['link_arr'] = $link_arr;
$dis = array();
foreach($disinvited as $uid)
{
$dis[] = $this->participant_name($uid);
}
$details['disinvited'] = implode(', ',$dis);
return $details;
}
/**
* create array with name, translated name and readable content of each attributes of an event
*
* old function, so far only used by send_update (therefor it's in bocalupdate and not bocal)
*
* @param array $event event to use
* @returns array of attributes with fieldname as key and array with the 'field'=translated name 'data' = readable content (for participants this is an array !)
*/
function event2array($event)
{
$var['title'] = Array(
'field' => lang('Title'),
'data' => $event['title']
);
$var['description'] = Array(
'field' => lang('Description'),
'data' => $event['description']
);
foreach(is_array($event['category']) ? $event['category'] : explode(',', $event['category']) as $cat_id)
{
$cat_string[] = stripslashes(Api\Categories::id2name($cat_id));
}
$var['category'] = Array(
'field' => lang('Category'),
'data' => implode(', ',$cat_string)
);
$var['location'] = Array(
'field' => lang('Location'),
'data' => $event['location']
);
$var['startdate'] = Array(
'field' => lang('Start Date/Time'),
'data' => $this->format_date($event['start']),
);
$var['enddate'] = Array(
'field' => lang('End Date/Time'),
'data' => $this->format_date($event['end']),
);
$pri = Array(
0 => lang('None'),
1 => lang('Low'),
2 => lang('Normal'),
3 => lang('High')
);
$var['priority'] = Array(
'field' => lang('Priority'),
'data' => $pri[$event['priority']]
);
$var['owner'] = Array(
'field' => lang('Owner'),
'data' => Api\Accounts::username($event['owner'])
);
$var['updated'] = Array(
'field' => lang('Updated'),
'data' => $this->format_date($event['modtime'] ?? null).', '.Api\Accounts::username($event['modifier'])
);
$var['access'] = Array(
'field' => lang('Access'),
'data' => $event['public'] ? lang('Public') : lang('Private')
);
if (isset($event['participants']) && is_array($event['participants']) && !empty($event['participants']))
{
$participants = $this->participants($event,true);
// fix external organiser to not be included as participant and shown as organiser
foreach($event['participants'] as $uid => $status)
{
$role = $quantity = null;
calendar_so::split_status($status, $quantity, $role);
if ($role == 'CHAIR' && $status == 'D' && !is_numeric($uid))
{
$var['owner']['data'] = $this->participant_name($uid);
unset($participants[$uid]);
break;
}
}
}
$var['participants'] = Array(
'field' => lang('Participants'),
'data' => $participants
);
// Repeated Events
$var['recur_type'] = Array(
'field' => lang('Repetition'),
'data' => (!empty($event['recur_type'])) ? $this->recure2string($event) : '',
);
return $var;
}
/**
* log all updates to a file
*
* @param array $event2save event-data before calling save
* @param array $event_saved event-data read back from the DB
* @param array $old_event =null event-data in the DB before calling save
* @param string $type ='update'
*/
function log2file($event2save,$event_saved,$old_event=null,$type='update')
{
if (!($f = fopen($this->log_file,'a')))
{
echo "<p>error opening '$this->log_file' !!!</p>\n";
return false;
}
fwrite($f,$type.': '.Api\Accounts::username($this->user).': '.date('r')."\n");
fwrite($f,"Time: time to save / saved time read back / old time before save\n");
foreach(array('start','end') as $name)
{
fwrite($f,$name.': '.(isset($event2save[$name]) ? $this->format_date($event2save[$name]) : 'not set').' / '.
$this->format_date($event_saved[$name]) .' / '.
(is_null($old_event) ? 'no old event' : $this->format_date($old_event[$name]))."\n");
}
foreach(array('event2save','event_saved','old_event') as $name)
{
fwrite($f,$name.' = '.print_r($$name,true));
}
fwrite($f,"\n");
fclose($f);
return true;
}
/**
* Check alarms and move them if needed
*
* Used when the start time has changed, and alarms need to be updated
*
* @param array $event
* @param array $old_event
* @param Api\DateTime|int|null $instance_date For recurring events, this is the date we are dealing with
* @param boolean $ignore_acl=false true: no acl check
*/
function check_move_alarms(Array &$event, Array $old_event = null, $instance_date = null, $ignore_acl=false)
{
if ($old_event !== null && $event['start'] == $old_event['start']) return;
$time = new Api\DateTime($event['start']);
if(!is_array($event['alarm']))
{
$event['alarm'] = $this->so->read_alarms($event['id']);
}
if (is_object($instance_date))
{
if (!is_a($instance_date, 'EGroupware\\Api\\DateTime'))
{
throw new Api\Exception\WrongParameter('$instance_date must be integer or Api\DateTime!');
}
$instance_date = $instance_date->format('ts');
}
foreach($event['alarm'] as &$alarm)
{
if(!empty($event['recur_type']) && $instance_date)
{
calendar_so::shift_alarm($event, $alarm, $instance_date);
}
else if ($alarm['time'] !== $time->format('ts') - $alarm['offset'])
{
$alarm['time'] = $time->format('ts') - $alarm['offset'];
$this->save_alarm($event['id'], $alarm, true, $ignore_acl);
}
}
}
/**
* saves a new or updated alarm
*
* @param int $cal_id Id of the calendar-entry
* @param array $alarm array with fields: text, owner, enabled, ..
* @param boolean $update_modified =true call update modified, default true
* @param boolean $ignore_acl=false true: no acl check
* @return string id of the alarm, or false on error (eg. no perms)
*/
function save_alarm($cal_id, $alarm, $update_modified=true, $ignore_acl=false)
{
if (!$cal_id || !$ignore_acl && !$this->check_perms(Acl::EDIT,$alarm['all'] ? $cal_id : 0,!$alarm['all'] ? $alarm['owner'] : 0))
{
//echo "<p>no rights to save the alarm=".print_r($alarm,true)." to event($cal_id)</p>";
return false; // no rights to add the alarm
}
$alarm['time'] = $this->date2ts($alarm['time'],true); // user to server-time
return $this->so->save_alarm($cal_id, $alarm, $update_modified);
}
/**
* delete one alarms identified by its id
*
* @param string $id alarm-id is a string of 'cal:'.$cal_id.':'.$alarm_nr, it is used as the job-id too
* @param boolean $ignore_acl=false true: no acl check
* @return int number of alarms deleted, false on error (eg. no perms)
*/
function delete_alarm($id, $ignore_acl=false)
{
list(,$cal_id) = explode(':',$id);
if (!($alarm = $this->so->read_alarm($id)) || !$cal_id || !$ignore_acl && !$this->check_perms(Acl::EDIT,$alarm['all'] ? $cal_id : 0,!$alarm['all'] ? $alarm['owner'] : 0))
{
return false; // no rights to delete the alarm
}
return $this->so->delete_alarm($id);
}
/**
* Find existing categories in database by name or add categories that do not exist yet
* currently used for ical/sif import
*
* @param array $catname_list names of the categories which should be found or added
* @param int|array $old_event =null match against existing event and expand the returned category ids
* by the ones the user normally does not see due to category permissions - used to preserve categories
* @return array category ids (found, added and preserved categories)
*/
function find_or_add_categories($catname_list, $old_event=null)
{
if (is_array($old_event) || $old_event > 0)
{
// preserve categories without users read access
if (!is_array($old_event)) $old_event = $this->read($old_event);
$old_categories = explode(',',$old_event['category']);
$old_cats_preserve = array();
if (is_array($old_categories) && count($old_categories) > 0)
{
foreach ($old_categories as $cat_id)
{
if (!$this->categories->check_perms(Acl::READ, $cat_id))
{
$old_cats_preserve[] = $cat_id;
}
}
}
}
$cat_id_list = array();
foreach ((array)$catname_list as $cat_name)
{
$cat_name = trim($cat_name);
$cat_id = $this->categories->name2id($cat_name, 'X-');
if (!$cat_id)
{
// some SyncML clients (mostly phones) add an X- to the category names
if (strncmp($cat_name, 'X-', 2) == 0)
{
$cat_name = substr($cat_name, 2);
}
$cat_id = $this->categories->add(array('name' => $cat_name, 'descr' => $cat_name, 'access' => 'private'));
}
if ($cat_id)
{
$cat_id_list[] = $cat_id;
}
}
if (is_array($old_cats_preserve) && count($old_cats_preserve) > 0)
{
$cat_id_list = array_merge($cat_id_list, $old_cats_preserve);
}
if (count($cat_id_list) > 1)
{
$cat_id_list = array_unique($cat_id_list);
sort($cat_id_list, SORT_NUMERIC);
}
return $cat_id_list;
}
function get_categories($cat_id_list)
{
if (!is_array($cat_id_list))
{
$cat_id_list = explode(',',$cat_id_list);
}
$cat_list = array();
foreach ($cat_id_list as $cat_id)
{
if ($cat_id && $this->categories->check_perms(Acl::READ, $cat_id) &&
($cat_name = $this->categories->id2name($cat_id)) && $cat_name != '--')
{
$cat_list[] = $cat_name;
}
}
return $cat_list;
}
/**
* Try to find a matching db entry
*
* @param array $event the vCalendar data we try to find
* @param string filter='exact' exact -> find the matching entry
* check -> check (consistency) for identical matches
* relax -> be more tolerant
* master -> try to find a related series master
* @return array calendar_ids of matching entries
*/
function find_event($event, $filter='exact')
{
$matchingEvents = array();
$query = array();
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"($filter)[EVENT]:" . array2string($event)."\n",3,$this->logfile);
}
if (!isset($event['recurrence'])) $event['recurrence'] = 0;
if ($filter == 'master')
{
$query[] = 'recur_type!='. MCAL_RECUR_NONE;
$query['cal_recurrence'] = 0;
}
elseif ($filter == 'exact')
{
if (!empty($event['recur_type']))
{
$query[] = 'recur_type='.$event['recur_type'];
}
else
{
$query[] = 'recur_type IS NULL';
}
$query['cal_recurrence'] = $event['recurrence'];
}
if ($event['id'])
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'(' . $event['id'] . ")[EventID]\n",3,$this->logfile);
}
if (($egwEvent = $this->read($event['id'], 0, false, 'server')))
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'()[FOUND]:' . array2string($egwEvent)."\n",3,$this->logfile);
}
if (!empty($egwEvent['recur_type']) &&
(empty($event['uid']) || $event['uid'] == $egwEvent['uid']))
{
if ($filter == 'master')
{
$matchingEvents[] = $egwEvent['id']; // we found the master
}
if ($event['recur_type'] == $egwEvent['recur_type'])
{
$matchingEvents[] = $egwEvent['id']; // we found the event
}
elseif (empty($event['recur_type']) &&
$event['recurrence'] != 0)
{
$exceptions = $this->so->get_recurrence_exceptions($egwEvent, $event['tzid']);
if (in_array($event['recurrence'], $exceptions))
{
$matchingEvents[] = $egwEvent['id'] . ':' . (int)$event['recurrence'];
}
}
} elseif ($filter != 'master' && ($filter == 'exact' ||
$event['recur_type'] == $egwEvent['recur_type'] &&
strpos($egwEvent['title'], $event['title']) === 0))
{
$matchingEvents[] = $egwEvent['id']; // we found the event
}
}
if (!empty($matchingEvents) || $filter == 'exact') return $matchingEvents;
}
unset($event['id']);
// No chance to find a master without [U]ID
if ($filter == 'master' && empty($event['uid'])) return $matchingEvents;
// only query calendars of users, we have READ-grants from
$users = array();
foreach(array_keys($this->grants) as $user)
{
$user = trim($user);
if ($this->check_perms(Acl::READ|self::ACL_READ_FOR_PARTICIPANTS|self::ACL_FREEBUSY,0,$user))
{
if ($user && !in_array($user,$users)) // already added?
{
$users[] = $user;
}
}
elseif ($GLOBALS['egw']->accounts->get_type($user) != 'g')
{
continue; // for non-groups (eg. users), we stop here if we have no read-rights
}
// the further code is only for real users
if (!is_numeric($user)) continue;
// for groups we have to include the members
if ($GLOBALS['egw']->accounts->get_type($user) == 'g')
{
$members = $GLOBALS['egw']->accounts->members($user, true);
if (is_array($members))
{
foreach($members as $member)
{
// use only members which gave the user a read-grant
if (!in_array($member, $users) &&
$this->check_perms(Acl::READ|self::ACL_FREEBUSY, 0, $member))
{
$users[] = $member;
}
}
}
}
else // for users we have to include all the memberships, to get the group-events
{
$memberships = $GLOBALS['egw']->accounts->memberships($user, true);
if (is_array($memberships))
{
foreach($memberships as $group)
{
if (!in_array($group, $users))
{
$users[] = $group;
}
}
}
}
}
if ($filter != 'master' && ($filter != 'exact' || empty($event['uid'])))
{
if (!empty($event['whole_day']))
{
if ($filter == 'relax')
{
$delta = 1800;
}
else
{
$delta = 60;
}
// check length with some tolerance
$length = $event['end'] - $event['start'] - $delta;
$query[] = ('(cal_end-cal_start)>' . $length);
$length += 2 * $delta;
$query[] = ('(cal_end-cal_start)<' . $length);
$query[] = ('cal_start>' . ($event['start'] - 86400));
$query[] = ('cal_start<' . ($event['start'] + 86400));
}
elseif (isset($event['start']))
{
if ($filter == 'relax')
{
$query[] = ('cal_start>' . ($event['start'] - 3600));
$query[] = ('cal_start<' . ($event['start'] + 3600));
}
else
{
// we accept a tiny tolerance
$query[] = ('cal_start>' . ($event['start'] - 2));
$query[] = ('cal_start<' . ($event['start'] + 2));
}
}
if ($filter == 'relax')
{
$matchFields = array();
}
else
{
$matchFields = array('priority', 'public');
}
foreach ($matchFields as $key)
{
if (isset($event[$key])) $query['cal_'.$key] = $event[$key];
}
}
if (!empty($event['uid']))
{
$query['cal_uid'] = $event['uid'];
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'(' . $event['uid'] . ")[EventUID]\n",3,$this->logfile);
}
}
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'[QUERY]: ' . array2string($query)."\n",3,$this->logfile);
}
if (!count($users) || !($foundEvents =
$this->so->search(null, null, $users, 0, 'owner', false, 0, array('query' => $query))))
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"[NO MATCH]\n",3,$this->logfile);
}
return $matchingEvents;
}
$pseudos = array();
foreach($foundEvents as $egwEvent)
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'[FOUND]: ' . array2string($egwEvent)."\n",3,$this->logfile);
}
if (in_array($egwEvent['id'], $matchingEvents)) continue;
// convert timezone id of event to tzid (iCal id like 'Europe/Berlin')
if (!$egwEvent['tz_id'] || !($egwEvent['tzid'] = calendar_timezones::id2tz($egwEvent['tz_id'])))
{
$egwEvent['tzid'] = Api\DateTime::$server_timezone->getName();
}
if (!isset(self::$tz_cache[$egwEvent['tzid']]))
{
self::$tz_cache[$egwEvent['tzid']] = calendar_timezones::DateTimeZone($egwEvent['tzid']);
}
if (!$event['tzid'])
{
$event['tzid'] = Api\DateTime::$server_timezone->getName();
}
if (!isset(self::$tz_cache[$event['tzid']]))
{
self::$tz_cache[$event['tzid']] = calendar_timezones::DateTimeZone($event['tzid']);
}
if (!empty($event['uid']))
{
if ($filter == 'master')
{
// We found the master
$matchingEvents = array($egwEvent['id']);
break;
}
if ($filter == 'exact')
{
// UID found
if (empty($event['recurrence']))
{
$egwstart = new Api\DateTime($egwEvent['start'], Api\DateTime::$server_timezone);
$egwstart->setTimezone(self::$tz_cache[$egwEvent['tzid']]);
$dtstart = new Api\DateTime($event['start'], Api\DateTime::$server_timezone);
$dtstart->setTimezone(self::$tz_cache[$event['tzid']]);
if (empty($egwEvent['recur_type']) &&
empty($event['recur_type']) ||
!empty($egwEvent['recur_type']) &&
!empty($event['recur_type']))
{
if (empty($egwEvent['recur_type']) &&
$egwstart->format('Ymd') == $dtstart->format('Ymd') ||
!empty($egwEvent['recur_type']))
{
// We found an exact match
$matchingEvents = array($egwEvent['id']);
break;
}
else
{
$matchingEvents[] = $egwEvent['id'];
}
}
continue;
}
elseif ($egwEvent['recurrence'] == $event['recurrence'])
{
// We found an exact match
$matchingEvents = array($egwEvent['id']);
break;
}
if (!empty($egwEvent['recur_type']) &&
empty($event['recur_type']) &&
!$egwEvent['recurrence'] && $event['recurrence'])
{
$exceptions = $this->so->get_recurrence_exceptions($egwEvent, $event['tzid']);
if (in_array($event['recurrence'], $exceptions))
{
// We found a pseudo exception
$matchingEvents = array($egwEvent['id'] . ':' . (int)$event['recurrence']);
break;
}
}
continue;
}
}
// check times
if ($filter != 'relax')
{
if (empty($event['whole_day']))
{
if (abs($event['end'] - $egwEvent['end']) >= 120)
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"() egwEvent length does not match!\n",3,$this->logfile);
}
continue;
}
}
else
{
if (!$this->so->isWholeDay($egwEvent))
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"() egwEvent is not a whole-day event!\n",3,$this->logfile);
}
continue;
}
}
}
// check for real match
$matchFields = array('title', 'description');
if ($filter != 'relax')
{
$matchFields[] = 'location';
}
foreach ($matchFields as $key)
{
if (!empty($event[$key]) && (empty($egwEvent[$key])
|| strpos(str_replace("\r\n", "\n", $egwEvent[$key]), $event[$key]) !== 0))
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"() event[$key] differ: '" . $event[$key] .
"' <> '" . $egwEvent[$key] . "'\n",3,$this->logfile);
}
continue 2; // next foundEvent
}
}
if (is_array($event['category']))
{
// check categories
$egwCategories = explode(',', $egwEvent['category']);
foreach ($egwCategories as $cat_id)
{
if ($this->categories->check_perms(Acl::READ, $cat_id) &&
!in_array($cat_id, $event['category']))
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"() egwEvent category $cat_id is missing!\n",3,$this->logfile);
}
continue 2;
}
}
$newCategories = array_diff($event['category'], $egwCategories);
if (!empty($newCategories))
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'() event has additional categories:'
. array2string($newCategories)."\n",3,$this->logfile);
}
continue;
}
}
if ($filter != 'relax')
{
// check participants
if (is_array($event['participants']))
{
foreach ($event['participants'] as $attendee => $status)
{
if (!isset($egwEvent['participants'][$attendee]) &&
$attendee != $egwEvent['owner']) // ||
//(!$relax && $egw_event['participants'][$attendee] != $status))
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"() additional event['participants']: $attendee\n",3,$this->logfile);
}
continue 2;
}
else
{
unset($egwEvent['participants'][$attendee]);
}
}
// ORGANIZER and Groups may be missing
unset($egwEvent['participants'][$egwEvent['owner']]);
foreach ($egwEvent['participants'] as $attendee => $status)
{
if (is_numeric($attendee) && $attendee < 0)
{
unset($egwEvent['participants'][$attendee]);
}
}
if (!empty($egwEvent['participants']))
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'() missing event[participants]: ' .
array2string($egwEvent['participants'])."\n",3,$this->logfile);
}
continue;
}
}
}
if (empty($event['recur_type']))
{
if (!empty($egwEvent['recur_type']))
{
// We found a pseudo Exception
$pseudos[] = $egwEvent['id'] . ':' . $event['start'];
continue;
}
}
elseif ($filter != 'relax')
{
// check exceptions
// $exceptions[$remote_ts] = $egw_ts
$exceptions = $this->so->get_recurrence_exceptions($egwEvent, $event['$tzid'], 0, 0, 'map');
if (is_array($event['recur_exception']))
{
foreach ($event['recur_exception'] as $key => $day)
{
if (isset($exceptions[$day]))
{
unset($exceptions[$day]);
}
else
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"() additional event['recur_exception']: $day\n",3,$this->logfile);
}
continue 2;
}
}
if (!empty($exceptions))
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'() missing event[recur_exception]: ' .
array2string($event['recur_exception'])."\n",3,$this->logfile);
}
continue;
}
}
// check recurrence information
foreach (array('recur_type', 'recur_interval', 'recur_enddate') as $key)
{
if (isset($event[$key])
&& $event[$key] != $egwEvent[$key])
{
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"() events[$key] differ: " . $event[$key] .
' <> ' . $egwEvent[$key]."\n",3,$this->logfile);
}
continue 2;
}
}
}
$matchingEvents[] = $egwEvent['id']; // exact match
}
if ($filter == 'exact' && !empty($event['uid']) && count($matchingEvents) > 1
|| $filter != 'master' && !empty($egwEvent['recur_type']) && empty($event['recur_type']))
{
// Unknown exception for existing series
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"() new exception for series found.\n",3,$this->logfile);
}
$matchingEvents = array();
}
// append pseudos as last entries
$matches = array_merge($matchingEvents, $pseudos);
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'[MATCHES]:' . array2string($matches)."\n",3,$this->logfile);
}
return $matches;
}
/**
* classifies an incoming event from the eGW point-of-view
*
* exceptions: unlike other calendar apps eGW does not create an event exception
* if just the participant state changes - therefore we have to distinguish between
* real exceptions and status only exceptions
*
* @param array $event the event to check
*
* @return array
* type =>
* SINGLE a single event
* SERIES-MASTER the series master
* SERIES-EXCEPTION event is a real exception
* SERIES-PSEUDO-EXCEPTION event is a status only exception
* SERIES-EXCEPTION-PROPAGATE event was a status only exception in the past and is now a real exception
* stored_event => if event already exists in the database array with event data or false
* master_event => for event type SERIES-EXCEPTION, SERIES-PSEUDO-EXCEPTION or SERIES-EXCEPTION-PROPAGATE
* the corresponding series master event array
* NOTE: this param is false if event is of type SERIES-MASTER
*/
function get_event_info(&$event)
{
$type = 'SINGLE'; // default
$master_event = false; //default
$stored_event = false;
$recurrence_event = false;
$wasPseudo = false;
if (($foundEvents = $this->find_event($event, 'exact')))
{
// We found the exact match
$eventID = array_shift($foundEvents);
if (strstr($eventID, ':'))
{
$type = 'SERIES-PSEUDO-EXCEPTION';
$wasPseudo = true;
list($eventID, $date) = explode(':', $eventID);
$recur_date = $this->date2usertime($date);
$stored_event = $this->read($eventID, $recur_date, false, 'server');
$master_event = $this->read($eventID, 0, false, 'server');
$recurrence_event = $stored_event;
}
else
{
$stored_event = $this->read($eventID, 0, false, 'server');
}
if (!empty($stored_event['uid']) && empty($event['uid']))
{
$event['uid'] = $stored_event['uid']; // restore the UID if it was not delivered
}
}
if (!empty($event['recur_type']))
{
$type = 'SERIES-MASTER';
}
if ($type == 'SINGLE' &&
($foundEvents = $this->find_event($event, 'master')))
{
// SINGLE, SERIES-EXCEPTION OR SERIES-EXCEPTON-STATUS
foreach ($foundEvents as $eventID)
{
// Let's try to find a related series
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
"()[MASTER]: $eventID\n",3,$this->logfile);
}
$type = 'SERIES-EXCEPTION';
if (($master_event = $this->read($eventID, 0, false, 'server')))
{
if (isset($stored_event['id']) &&
$master_event['id'] != $stored_event['id'])
{
break; // this is an existing exception
}
elseif (isset($event['recurrence']) &&
in_array($event['recurrence'], $master_event['recur_exception']))
{
$type = 'SERIES-PSEUDO-EXCEPTION'; // could also be a real one
$recurrence_event = $master_event;
$recurrence_event['start'] = $event['recurrence'];
$recurrence_event['end'] -= $master_event['start'] - $event['recurrence'];
break;
}
elseif (in_array($event['start'], $master_event['recur_exception']))
{
$type='SERIES-PSEUDO-EXCEPTION'; // new pseudo exception?
$recurrence_event = $master_event;
$recurrence_event['start'] = $event['start'];
$recurrence_event['end'] -= $master_event['start'] - $event['start'];
break;
}
else
{
// try to find a suitable pseudo exception date
// Checks are all in server time
$egw_rrule = calendar_rrule::event2rrule($master_event, false, $GLOBALS['egw_info']['server']['server_timezone']);
$egw_rrule->current = clone $egw_rrule->time;
while ($egw_rrule->valid())
{
$occurrence = Api\DateTime::to($egw_rrule->current(), 'server');
if ($this->log)
{
error_log(__FILE__.'['.__LINE__.'] '.__METHOD__.
'() try occurrence ' . $egw_rrule->current()
. " ($occurrence)\n",3,$this->logfile);
}
if ($event['start'] == $occurrence)
{
$type = 'SERIES-PSEUDO-EXCEPTION'; // let's try a pseudo exception
$recurrence_event = $master_event;
// Update the event's recurrence too
$recurrence_event['start'] = $event['recurrence'] = $occurrence;
$recurrence_event['end'] -= $master_event['start'] - $occurrence;
break 2;
}
if (isset($event['recurrence']) && $event['recurrence'] == $occurrence)
{
$type = 'SERIES-EXCEPTION-PROPAGATE';
if ($stored_event)
{
unset($stored_event['id']); // signal the true exception
$stored_event['recur_type'] = MCAL_RECUR_NONE;
}
break 2;
}
$egw_rrule->next_no_exception();
}
}
}
}
}
// check pseudo exception propagation
if ($recurrence_event)
{
// default if we cannot find a proof for a fundamental change
// the recurrence_event is the master event with start and end adjusted to the recurrence
// check for changed data
foreach (array('start','end','uid','title','location','description',
'priority','public','special','non_blocking') as $key)
{
if (!empty($event[$key]) && $recurrence_event[$key] != $event[$key])
{
if ($wasPseudo)
{
// We started with a pseudo exception
$type = 'SERIES-EXCEPTION-PROPAGATE';
}
else
{
$type = 'SERIES-EXCEPTION';
}
if ($stored_event)
{
unset($stored_event['id']); // signal the true exception
$stored_event['recur_type'] = MCAL_RECUR_NONE;
}
break;
}
}
// the event id here is always the id of the master event
// unset it to prevent confusion of stored event and master event
unset($event['id']);
}
// check ACL
if (is_array($master_event))
{
$acl_edit = $this->check_perms(Acl::EDIT, $master_event['id']);
}
else
{
if (is_array($stored_event))
{
$acl_edit = $this->check_perms(Acl::EDIT, $stored_event['id']);
}
else
{
$acl_edit = true; // new event
}
}
return array(
'type' => $type,
'acl_edit' => $acl_edit,
'stored_event' => $stored_event,
'master_event' => $master_event,
);
}
/**
* Translates all timestamps for a given event from server-time to user-time.
* The update() and save() methods expect timestamps in user-time.
* @param &$event the event we are working on
*
*/
function server2usertime (&$event)
{
// we run all dates through date2usertime, to adjust to user-time
foreach(array('start','end','recur_enddate','recurrence') as $ts)
{
// we convert here from server-time to timestamps in user-time!
if (isset($event[$ts])) $event[$ts] = $event[$ts] ? $this->date2usertime($event[$ts]) : 0;
}
// same with the recur exceptions and rdates
foreach(['recur_exception', 'recur_rdates'] as $name)
{
foreach($event[$name] ?? [] as $n => $date)
{
$event[$name][$n] = $this->date2usertime($date);
}
}
// same with the alarms
if (isset($event['alarm']) && is_array($event['alarm']))
{
foreach($event['alarm'] as $id => $alarm)
{
$event['alarm'][$id]['time'] = $this->date2usertime($alarm['time'] ?? null);
}
}
}
/**
* Delete events that are more than $age years old
*
* Purges old events from the database
*
* @param int|float $age How many years old the event must be before it is deleted
*/
function purge($age)
{
if (is_numeric($age) && $age > 0) // just make sure bogus values dont delete everything
{
$this->so->purge(time() - 365*24*3600*(float)$age);
}
}
/**
* Check to see if we need to reset the status of any of the participants
* - Current user is never reset
* - Other users we respect their preference
* - Non-users status is always reset
*
* @param Array $event New event
* @param Array $old_event Event before modification
*
* @return boolean true if any statuses were reset
*/
protected function check_reset_statuses(&$event, $old_event)
{
// Event passed is still in user time at this point, convert to servertime for
// comparison, but don't modify it in event
if(!$old_event || !is_array($old_event) || $this->date2ts($event['start'],true) == $old_event['start'])
{
return false;
}
$status_reset = false;
$sameday = (date('Ymd', $old_event['start']) == date('Ymd', $event['start']));
foreach((array)$event['participants'] as $uid => $status)
{
$q = $r = null;
calendar_so::split_status($status, $q, $r);
if($uid == $this->user || $status == 'U')
{
continue;
}
if(is_int($uid))
{
// Just user accounts
$preferences = new Api\Preferences($uid);
}
else
{
// For non-users, use the owner's preference
$preferences = new Api\Preferences($event['owner']);
}
$part_prefs = $preferences->read_repository();
switch($part_prefs['calendar']['reset_stati'])
{
case 'no':
break;
case 'startday':
if($sameday)
{
break;
}
default:
$status_reset = true;
$event['participants'][$uid] = calendar_so::combine_status('U', $q, $r);
}
}
return $status_reset;
}
}