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egroupware/calendar/inc/class.bocal.inc.php

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<?php
/**
* eGroupWare - Calendar's buisness-object - access only
*
* @link http://www.egroupware.org
* @package calendar
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @copyright (c) 2004-7 by RalfBecker-At-outdoor-training.de
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @version $Id$
*/
require_once(EGW_INCLUDE_ROOT.'/calendar/inc/class.socal.inc.php');
if (!defined('ACL_TYPE_IDENTIFER')) // used to mark ACL-values for the debug_message methode
{
define('ACL_TYPE_IDENTIFER','***ACL***');
}
define('HOUR_s',60*60);
define('DAY_s',24*HOUR_s);
define('WEEK_s',7*DAY_s);
/**
* Gives read access to the calendar, but all events the user is not participating are private!
* Used be the addressbook.
*/
define('EGW_ACL_READ_FOR_PARTICIPANTS',EGW_ACL_CUSTOM_1);
/**
* Class to access all calendar data
*
* For updating calendar data look at the bocalupdate class, which extends this class.
*
* 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 in 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 this class !!!
*/
class bocal
{
/**
* @var int $debug 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 $debug=false;
/**
* @var int $tz_offset_s offset in secconds between user and server-time,
* it need to be add to a server-time to get the user-time or substracted from a user-time to get the server-time
*/
var $tz_offset_s;
/**
* @var int $now_su timestamp of actual user-time
*/
var $now_su;
/**
* @var array $cal_prefs calendar-specific prefs
*/
var $cal_prefs;
/**
* @var array $common_prefs common preferences
*/
var $common_prefs;
/**
* @var int $user nummerical id of the current user-id
*/
var $user=0;
/**
* @var array $grants grants of the current user, array with user-id / ored-ACL-rights pairs
*/
var $grants=array();
/**
* @var array $verbose_status translated 1-char status values to a verbose name, run through lang() by the constructor
*/
var $verbose_status = array(
'A' => 'Accepted',
'R' => 'Rejected',
'T' => 'Tentative',
'U' => 'No Response',
'G' => 'Group invitation',
);
/**
* @var array recur_types translates MCAL recur-types to verbose labels
*/
var $recur_types = Array(
MCAL_RECUR_NONE => 'None',
MCAL_RECUR_DAILY => 'Daily',
MCAL_RECUR_WEEKLY => 'Weekly',
MCAL_RECUR_MONTHLY_WDAY => 'Monthly (by day)',
MCAL_RECUR_MONTHLY_MDAY => 'Monthly (by date)',
MCAL_RECUR_YEARLY => 'Yearly'
);
/**
* @var array recur_days translates MCAL recur-days to verbose labels
*/
var $recur_days = array(
MCAL_M_MONDAY => 'Monday',
MCAL_M_TUESDAY => 'Tuesday',
MCAL_M_WEDNESDAY => 'Wednesday',
MCAL_M_THURSDAY => 'Thursday',
MCAL_M_FRIDAY => 'Friday',
MCAL_M_SATURDAY => 'Saturday',
MCAL_M_SUNDAY => 'Sunday',
);
/**
* @var array $resources registered scheduling resources of the calendar (gets chached in the session for performance reasons)
*/
var $resources;
/**
* @internal
* @var array $cached_event here we do some caching to read single events only once
*/
var $cached_event = array();
var $cached_event_date_format = false;
/**
* @var array $cached_holidays holidays plus birthdays (gets cached in the session for performance reasons)
*/
var $cached_holidays;
/**
* Instance of the socal class
*
* @var socal
*/
var $so;
/**
* Instance of the datetime class
*
* @var egw_datetime
*/
var $datetime;
/**
* Constructor
*/
function bocal()
{
if ($this->debug > 0) $this->debug_message('bocal::bocal() started',True,$param);
foreach(array(
'so' => 'calendar.socal',
'datetime' => 'phpgwapi.datetime',
) as $my => $app_class)
{
list(,$class) = explode('.',$app_class);
if (!is_object($GLOBALS['egw']->$class))
{
//echo "<p>calling CreateObject($app_class)</p>\n".str_repeat(' ',4096);
$GLOBALS['egw']->$class = CreateObject($app_class);
}
$this->$my = &$GLOBALS['egw']->$class;
}
$this->common_prefs =& $GLOBALS['egw_info']['user']['preferences']['common'];
$this->cal_prefs =& $GLOBALS['egw_info']['user']['preferences']['calendar'];
$this->tz_offset_s = $this->datetime->tz_offset;
$this->now_su = time() + $this->tz_offset_s;
$this->user = $GLOBALS['egw_info']['user']['account_id'];
$this->grants = $GLOBALS['egw']->acl->get_grants('calendar');
foreach($this->verbose_status as $status => $text)
{
$this->verbose_status[$status] = lang($text);
}
if (!is_array($this->resources = $GLOBALS['egw']->session->appsession('resources','calendar')))
{
$this->resources = array();
foreach($GLOBALS['egw']->hooks->process('calendar_resources') as $app => $data)
{
if ($data && $data['type'])
{
$this->resources[$data['type']] = $data + array('app' => $app);
}
}
$GLOBALS['egw']->session->appsession('resources','calendar',$this->resources);
}
//echo "registered resources="; _debug_array($this->resources);
$config =& CreateObject('phpgwapi.config','calendar');
$this->config =& $config->read_repository();
unset($config);
}
/**
* Add group-members as participants with status 'G'
*
* @param array $event event-array
* @return int number of added participants
*/
function enum_groups(&$event)
{
$added = 0;
foreach($event['participants'] as $uid => $status)
{
if (is_numeric($uid) && $GLOBALS['egw']->accounts->get_type($uid) == 'g' &&
($members = $GLOBALS['egw']->accounts->member($uid)))
{
foreach($members as $member)
{
$member = $member['account_id'];
if (!isset($event['participants'][$member]))
{
$event['participants'][$member] = 'G';
++$added;
}
}
}
}
return $added;
}
/**
* Searches / lists calendar entries, including repeating ones
*
* @param params array with the following keys
* start date startdate of the search/list, defaults to today
* end date enddate of the search/list, defaults to start + one day
* users mixed integer user-id or array of user-id's to use, defaults to the current user
* cat_id mixed category-id or array of cat-id's, defaults to all if unset, 0 or False
* Please note: only a single cat-id, will include all sub-cats (if the common-pref 'cats_no_subs' is False)
* filter string filter-name, atm. 'all' or 'hideprivate'
* query string pattern so search for, if unset or empty all matching entries are returned (no search)
* Please Note: a search never returns repeating events more then once AND does not honor start+end date !!!
* dayswise boolean on True it returns an array with YYYYMMDD strings as keys and an array with events
* (events spanning multiple days are returned each day again (!)) otherwise it returns one array with
* the events (default), not honored in a search ==> always returns an array of events !
* date_format string date-formats: 'ts'=timestamp (default), 'array'=array, or string with format for date
* offset boolean/int false (default) to return all entries or integer offset to return only a limited result
* enum_recuring boolean if true or not set (default) or daywise is set, each recurence of a recuring events is returned,
* otherwise the original recuring event (with the first start- + enddate) is returned
* num_rows int number of entries to return, default or if 0, max_entries from the prefs
* order column-names plus optional DESC|ASC separted by comma
* show_rejected if set rejected invitation are shown only when true, otherwise it depends on the cal-pref or a running query
* ignore_acl if set and true no check_perms for a general EGW_ACL_READ grants is performed
* enum_groups boolean if set and true, group-members will be added as participants with status 'G'
* @return array of events or array with YYYYMMDD strings / array of events pairs (depending on $daywise param)
* or false if there are no read-grants from _any_ of the requested users
*/
function &search($params)
{
$params_in = $params;
if (!isset($params['users']) || !$params['users'] ||
count($params['users']) == 1 && isset($params['users'][0]) && !$params['users'][0]) // null or '' casted to an array
{
// for a search use all account you have read grants from
$params['users'] = $params['query'] ? array_keys($this->grants) : $this->user;
}
if (!is_array($params['users']))
{
$params['users'] = $params['users'] ? array($params['users']) : array();
}
// only query calendars of users, we have READ-grants from
$users = array();
foreach($params['users'] as $user)
{
if ($params['ignore_acl'] || $this->check_perms(EGW_ACL_READ|EGW_ACL_READ_FOR_PARTICIPANTS,0,$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 = $GLOBALS['egw']->accounts->member($user);
if (is_array($members))
{
foreach($members as $member)
{
// use only members which gave the user a read-grant
if (!in_array($member['account_id'],$users) &&
($params['ignore_acl'] || $this->check_perms(EGW_ACL_READ,0,$member['account_id'])))
{
$users[] = $member['account_id'];
}
}
}
}
else // for users we have to include all the memberships, to get the group-events
{
$memberships = $GLOBALS['egw']->accounts->membership($user);
if (is_array($memberships))
{
foreach($memberships as $group)
{
if (!in_array($group['account_id'],$users))
{
$users[] = $group['account_id'];
}
}
}
}
}
// if we have no grants from the given user(s), we directly return no events / an empty array,
// as calling the so-layer without users would give the events of all users (!)
if (!count($users))
{
return false;
}
if (isset($params['start'])) $start = $this->date2ts($params['start']);
if (isset($params['end']))
{
$end = $this->date2ts($params['end']);
$this->check_move_horizont($end);
}
$daywise = !isset($params['daywise']) ? False : !!$params['daywise'];
$enum_recuring = $daywise || !isset($params['enum_recuring']) || !!$params['enum_recuring'];
$cat_id = isset($params['cat_id']) ? $params['cat_id'] : 0;
$filter = isset($params['filter']) ? $params['filter'] : 'all';
$offset = isset($params['offset']) && $params['offset'] !== false ? (int) $params['offset'] : false;
$show_rejected = isset($params['show_rejected']) ? $params['show_rejected'] : $this->cal_prefs['show_rejected'] || $params['query'];
if ($this->debug && ($this->debug > 1 || $this->debug == 'search'))
{
$this->debug_message('bocal::search(%1) start=%2, end=%3, daywise=%4, cat_id=%5, filter=%6, query=%7, offset=%8, num_rows=%9, order=%10, show_rejected=%11)',
True,$params,$start,$end,$daywise,$cat_id,$filter,$params['query'],$offset,(int)$params['num_rows'],$params['order'],$show_rejected);
}
// date2ts(,true) converts to server time, db2data converts again to user-time
$events =& $this->so->search(isset($start) ? $this->date2ts($start,true) : null,isset($end) ? $this->date2ts($end,true) : null,
$users,$cat_id,$filter,$params['query'],$offset,(int)$params['num_rows'],$params['order'],$show_rejected);
$this->total = $this->so->total;
$this->db2data($events,isset($params['date_format']) ? $params['date_format'] : 'ts');
// socal::search() returns rejected group-invitations, as only the user not also the group is rejected
// as we cant remove them efficiantly in SQL, we kick them out here, but only if just one user is displayed
$remove_rejected_by_user = !$show_rejected && count($params['users']) == 1 ? $params['users'][0] : false;
//echo "<p align=right>remove_rejected_by_user=$remove_rejected_by_user, show_rejected=$show_rejected, params[users]=".print_r($param['users'])."</p>\n";
foreach($events as $id => $event)
{
if ($remove_rejected_by_user && $event['participants'][$remove_rejected_by_user] == 'R')
{
unset($events[$id]); // remove the rejected event
$this->total--;
continue;
}
if ($params['enum_groups'] && $this->enum_groups($event))
{
$events[$id] = $event;
}
if (!$this->check_perms(EGW_ACL_READ,$event) || (!$event['public'] && $filter == 'hideprivate'))
{
if($params['query'])
{
unset($events[$id]);
$this->total--;
continue;
}
else
{
$this->clear_private_infos($events[$id],$users);
}
}
}
if ($daywise)
{
if ($this->debug && ($this->debug > 2 || $this->debug == 'search'))
{
$this->debug_message('socalendar::search daywise sorting from %1 to %2 of %3',False,$start,$end,$events);
}
// create empty entries for each day in the reported time
for($ts = $start; $ts <= $end; $ts += DAY_s)
{
$daysEvents[$this->date2string($ts)] = array();
}
foreach($events as $k => $event)
{
$e_start = max($this->date2ts($event['start']),$start);
// $event['end']['raw']-1 to allow events to end on a full hour/day without the need to enter it as minute=59
$e_end = min($this->date2ts($event['end'])-1,$end);
// add event to each day in the reported time
for($ts = $e_start; $ts <= $e_end; $ts += DAY_s)
{
$daysEvents[$ymd = $this->date2string($ts)][] =& $events[$k];
}
if ($ymd != ($last = $this->date2string($e_end)))
{
$daysEvents[$last][] =& $events[$k];
}
}
$events =& $daysEvents;
if ($this->debug && ($this->debug > 2 || $this->debug == 'search'))
{
$this->debug_message('socalendar::search daywise events=%1',False,$events);
}
}
elseif(!$enum_recuring)
{
$recur_ids = array();
foreach($events as $k => $event)
{
if ($event['recur_type'] != MCAL_RECUR_NONE)
{
if (!in_array($event['id'],$recur_ids))
{
$recur_ids[] = $event['id'];
}
unset($events[$k]);
}
}
if (count($recur_ids))
{
$events = array_merge($this->read($recur_ids,null,false,$params['date_format']),$events);
}
}
if ($this->debug && ($this->debug > 0 || $this->debug == 'search'))
{
$this->debug_message('bocal::search(%1)=%2',True,$params,$events);
}
return $events;
}
/**
* Clears all non-private info from a privat event
*
* That function only returns the infos allowed to be viewed by people without EGW_ACL_PRIVATE grants
*
* @param array &$event
* @param array $allowed_participants ids of the allowed participants, eg. the ones the search is over or eg. the owner of the calendar
*/
function clear_private_infos(&$event,$allowed_participants = array())
{
$event = array(
'id' => $event['id'],
'start' => $event['start'],
'end' => $event['end'],
'title' => lang('private'),
'participants' => array_intersect_key($event['participants'],array_flip($allowed_participants)),
'public'=> 0,
'category' => $event['category'], // category is visible anyway, eg. by using planner by cat
'non_blocking' => $event['non_blocking'],
);
}
/**
* check and evtl. move the horizont (maximum date for unlimited recuring events) to a new date
*
* @internal automaticaly called by search
* @param mixed $new_horizont time to set the horizont to (user-time)
*/
function check_move_horizont($new_horizont)
{
if ((int) $this->debug >= 2 || $this->debug == 'check_move_horizont')
{
$this->debug_message('bocal::check_move_horizont(%1) horizont=%2',true,$new_horizont,$this->config['horizont']);
}
$new_horizont = $this->date2ts($new_horizont,true); // now we are in server-time, where this function operates
if ($new_horizont > time()+1000*DAY_s) // some user tries to "look" more then 1000 days in the future
{
if ($this->debug == 'check_move_horizont') $this->debug_message('bocal::check_move_horizont(%1) horizont=%2 new horizont more then 1000 days from now --> ignoring it',true,$new_horizont,$this->config['horizont']);
return;
}
if ($new_horizont <= $this->config['horizont']) // no move necessary
{
if ($this->debug == 'check_move_horizont') $this->debug_message('bocal::check_move_horizont(%1) horizont=%2 is bigger ==> nothing to do',true,$new_horizont,$this->config['horizont']);
return;
}
if ($new_horizont < time()+31*DAY_s)
{
$new_horizont = time()+31*DAY_s;
}
$old_horizont = $this->config['horizont'];
$this->config['horizont'] = $new_horizont;
// create further recurances for all recuring and not yet (at the old horizont) ended events
if (($recuring = $this->so->unfinished_recuring($old_horizont)))
{
foreach($this->read(array_keys($recuring)) as $cal_id => $event)
{
if ($this->debug == 'check_move_horizont')
{
$this->debug_message('bocal::check_move_horizont(%1): calling set_recurrences(%2,%3)',true,$new_horizont,$event,$old_horizont);
}
// insert everything behind max(cal_start), which can be less then $old_horizont because of bugs in the past
$this->set_recurrences($event,$recuring[$cal_id]+1+$this->tz_offset_s); // set_recurences operates in user-time!
}
}
// update the horizont
$config =& CreateObject('phpgwapi.config','calendar');
$config->save_value('horizont',$this->config['horizont'],'calendar');
if ($this->debug == 'check_move_horizont') $this->debug_message('bocal::check_move_horizont(%1) new horizont=%2, exiting',true,$new_horizont,$this->config['horizont']);
}
/**
* set all recurances for an event til the defined horizont $this->config['horizont']
*
* @param array $event
* @param mixed $start=0 minimum start-time for new recurances or !$start = since the start of the event
*/
function set_recurrences($event,$start=0)
{
if ($this->debug && ((int) $this->debug >= 2 || $this->debug == 'set_recurrences' || $this->debug == 'check_move_horizont'))
{
$this->debug_message('bocal::set_recurrences(%1,%2)',true,$event,$start);
}
// check if the caller gave the participants and if not read them from the DB
if (!isset($event['participants']))
{
list(,$event_read) = each($this->so->read($event['id']));
$event['participants'] = $event_read['participants'];
}
if (!$start) $start = $event['start'];
$events = array();
$this->insert_all_repetitions($event,$start,$this->date2ts($this->config['horizont'],true),$events,null);
foreach($events as $event)
{
$this->so->recurrence($event['id'],$this->date2ts($event['start'],true),$this->date2ts($event['end'],true),$event['participants']);
}
}
/**
* convert data read from the db, eg. convert server to user-time
*
* @param array &$events array of event-arrays (reference)
* @param $date_format='ts' date-formats: 'ts'=timestamp, 'server'=timestamp in server-time, 'array'=array or string with date-format
*/
function db2data(&$events,$date_format='ts')
{
if (!is_array($events)) echo "<p>bocal::db2data(\$events,$date_format) \$events is no array<br />\n".function_backtrace()."</p>\n";
foreach($events as $id => $event)
{
// we convert here from the server-time timestamps to user-time and (optional) to a different date-format!
foreach(array('start','end','modified','recur_enddate') as $ts)
{
if (empty($event[$ts])) continue;
$events[$id][$ts] = $this->date2usertime($event[$ts],$date_format);
}
// same with the recur exceptions
if (isset($event['recur_exception']) && is_array($event['recur_exception']))
{
foreach($event['recur_exception'] as $n => $date)
{
$events[$id]['recur_exception'][$n] = $this->date2usertime($date,$date_format);
}
}
// same with the alarms
if (isset($event['alarm']) && is_array($event['alarm']))
{
foreach($event['alarm'] as $n => $alarm)
{
$events[$id]['alarm'][$n]['time'] = $this->date2usertime($alarm['time'],$date_format);
}
}
}
}
/**
* convert a date from server to user-time
*
* @param int $date timestamp in server-time
* @param $date_format='ts' date-formats: 'ts'=timestamp, 'server'=timestamp in server-time, 'array'=array or string with date-format
*/
function date2usertime($ts,$date_format='ts')
{
if (empty($ts)) return $ts;
switch ($date_format)
{
case 'ts':
return $ts + $this->tz_offset_s;
case 'server':
return $ts;
case 'array':
return $this->date2array((int) $ts,true);
case 'string':
return $this->date2string($ts,true);
}
return $this->date2string($ts,true,$date_format);
}
/**
* Reads a calendar-entry
*
* @param int/array/string $ids id or array of id's of the entries to read, or string with a single uid
* @param mixed $date=null date to specify a single event of a series
* @param boolean $ignore_acl should we ignore the acl, default False for a single id, true for multiple id's
* @param string $date_format='ts' date-formats: 'ts'=timestamp, 'server'=timestamp in servertime, 'array'=array, or string with date-format
* @return boolean/array event or array of id => event pairs, false if the acl-check went wrong, null if $ids not found
*/
function read($ids,$date=null,$ignore_acl=False,$date_format='ts')
{
if ($date) $date = $this->date2ts($date);
if ($ignore_acl || is_array($ids) || ($return = $this->check_perms(EGW_ACL_READ,$ids,0,$date_format,$date)))
{
if (is_array($ids) || !isset($this->cached_event['id']) || $this->cached_event['id'] != $ids ||
$this->cached_event_date_format != $date_format ||
$this->cached_event['recur_type'] != MCAL_RECUR_NONE && !is_null($date) && (!$date || $this->cached_event['start'] < $date))
{
$events = $this->so->read($ids,$date ? $this->date2ts($date,true) : 0);
if ($events)
{
$this->db2data($events,$date_format);
if (is_array($ids))
{
$return =& $events;
}
else
{
$this->cached_event = array_shift($events);
$this->cached_event_date_format = $date_format;
$return =& $this->cached_event;
}
}
}
else
{
$return =& $this->cached_event;
}
}
if ($this->debug && ($this->debug > 1 || $this->debug == 'read'))
{
$this->debug_message('bocal::read(%1,%2,%3,%4)=%5',True,$ids,$date,$ignore_acl,$date_format,$return);
}
return $return;
}
/**
* Inserts all repetions of $event in the timespan between $start and $end into $events
*
* As events can have recur-exceptions, only those event-date not having one, should get inserted.
* The caller supplies an array with the already inserted exceptions.
*
* The new entries are just appended to $entries, so $events is no longer sorted by startdate !!!
* Unlike the old code the start- and end-date of the events should be adapted here !!!
*
* TODO: This code is mainly copied from bocalendar and need to be rewritten for the changed algorithm:
* We insert now all repetions of one event in one go. It should be possible to calculate the time-difference
* of the used recur-type and add all events in one simple for-loop. Daylightsaving changes need to be taken into Account.
*
* @param $event array repeating event whos repetions should be inserted
* @param $start mixed start-date
* @param $end mixed end-date
* @param $events array where the repetions get inserted
* @param $recur_exceptions array with date (in Ymd) as key (and True as values)
*/
function insert_all_repetitions($event,$start,$end,&$events,$recur_exceptions)
{
if ((int) $this->debug >= 3 || $this->debug == 'set_recurrences' || $this->debug == 'check_move_horizont' || $this->debug == 'insert_all_repitions')
{
$this->debug_message('bocal::insert_all_repitions(%1,%2,%3,&$event,%4)',true,$event,$start,$end,$recur_exceptions);
}
$start_in = $start; $end_in = $end;
$start = $this->date2ts($start);
$end = $this->date2ts($end);
$event_start_ts = $this->date2ts($event['start']);
$event_end_ts = $this->date2ts($event['end']);
if ($this->debug && ((int) $this->debug > 3 || $this->debug == 'insert_all_repetions' || $this->debug == 'check_move_horizont' || $this->debug == 'insert_all_repitions'))
{
$this->debug_message('bocal::insert_all_repetions(%1,start=%2,end=%3,,%4) starting...',True,$event,$start_in,$end_in,$recur_exceptions);
}
$id = $event['id'];
$event_start_arr = $this->date2array($event['start']);
// to be able to calculate the repetitions as difference to the start-date,
// both need to be calculated without daylight saving: mktime(,,,,,,0)
$event_start_daybegin_ts = adodb_mktime(0,0,0,$event_start_arr['month'],$event_start_arr['day'],$event_start_arr['year'],0);
if($event['recur_enddate'])
{
$recur_end_ymd = $this->date2string($event['recur_enddate']);
}
else
{
$recur_end_ymd = $this->date2string(adodb_mktime(0,0,0,1,1,5+adodb_date('Y'))); // go max. 5 years from now
}
// We only need to compute the intersection between our reported time-span and the live-time of the event
// To catch all multiday repeated events (eg. second days), we need to start the length of the even earlier
// then our original report-starttime
$event_length = $event_end_ts - $event_start_ts;
$start_ts = max($event_start_ts,$start-$event_length);
// we need to add 26*60*60-1 to the recur_enddate as its hour+minute are 0
$end_ts = $event['recur_enddate'] ? min($this->date2ts($event['recur_enddate'])+DAY_s-1,$end) : $end;
for($ts = $start_ts; $ts < $end_ts; $ts += DAY_s)
{
$search_date_ymd = (int)$this->date2string($ts);
$have_exception = !is_null($recur_exceptions) && isset($recur_exceptions[$search_date_ymd]);
if (!$have_exception) // no execption by an edited event => check the deleted ones
{
foreach((array)$event['recur_exception'] as $exception_ts)
{
if (($have_exception = $search_date_ymd == (int)$this->date2string($exception_ts))) break;
}
}
if ($this->debug && ((int) $this->debug > 3 || $this->debug == 'insert_all_repetions' || $this->debug == 'check_move_horizont' || $this->debug == 'insert_all_repitions'))
{
$this->debug_message('bocal::insert_all_repetions(...,%1) checking recur_exceptions[%2] and event[recur_exceptions]=%3 ==> %4',False,
$recur_exceptions,$search_date_ymd,$event['recur_exception'],$have_exception);
}
if ($have_exception)
{
continue; // we already have an exception for that date
}
$search_date_year = adodb_date('Y',$ts);
$search_date_month = adodb_date('m',$ts);
$search_date_day = adodb_date('d',$ts);
$search_date_dow = adodb_date('w',$ts);
// to be able to calculate the repetitions as difference to the start-date,
// both need to be calculated without daylight saving: mktime(,,,,,,0)
$search_beg_day = adodb_mktime(0,0,0,$search_date_month,$search_date_day,$search_date_year,0);
if ($search_date_ymd == $event_start_arr['full']) // first occurence
{
$this->add_adjusted_event($events,$event,$search_date_ymd);
continue;
}
$freq = $event['recur_interval'] ? $event['recur_interval'] : 1;
$type = $event['recur_type'];
switch($type)
{
case MCAL_RECUR_DAILY:
if($this->debug > 4)
{
echo '<!-- check_repeating_events - MCAL_RECUR_DAILY - '.$id.' -->'."\n";
}
if ($freq == 1 && $event['recur_enddate'] && $search_date_ymd <= $recur_end_ymd)
{
$this->add_adjusted_event($events,$event,$search_date_ymd);
}
elseif (floor(($search_beg_day - $event_start_daybegin_ts)/DAY_s) % $freq)
{
continue;
}
else
{
$this->add_adjusted_event($events,$event,$search_date_ymd);
}
break;
case MCAL_RECUR_WEEKLY:
// we use round(,1) to deal with changing daylight saving
if (floor(round(($search_beg_day - $event_start_daybegin_ts)/WEEK_s,1)) % $freq)
{
continue;
}
$check = 0;
switch($search_date_dow)
{
case 0:
$check = MCAL_M_SUNDAY;
break;
case 1:
$check = MCAL_M_MONDAY;
break;
case 2:
$check = MCAL_M_TUESDAY;
break;
case 3:
$check = MCAL_M_WEDNESDAY;
break;
case 4:
$check = MCAL_M_THURSDAY;
break;
case 5:
$check = MCAL_M_FRIDAY;
break;
case 6:
$check = MCAL_M_SATURDAY;
break;
}
if ($event['recur_data'] & $check)
{
$this->add_adjusted_event($events,$event,$search_date_ymd);
}
break;
case MCAL_RECUR_MONTHLY_WDAY:
if ((($search_date_year - $event_start_arr['year']) * 12 + $search_date_month - $event_start_arr['month']) % $freq)
{
continue;
}
if (($GLOBALS['egw']->datetime->day_of_week($event_start_arr['year'],$event_start_arr['month'],$event_start_arr['day']) == $GLOBALS['egw']->datetime->day_of_week($search_date_year,$search_date_month,$search_date_day)) &&
(ceil($event_start_arr['day']/7) == ceil($search_date_day/7)))
{
$this->add_adjusted_event($events,$event,$search_date_ymd);
}
break;
case MCAL_RECUR_MONTHLY_MDAY:
if ((($search_date_year - $event_start_arr['year']) * 12 + $search_date_month - $event_start_arr['month']) % $freq)
{
continue;
}
if ($search_date_day == $event_start_arr['day'])
{
$this->add_adjusted_event($events,$event,$search_date_ymd);
}
break;
case MCAL_RECUR_YEARLY:
if (($search_date_year - $event_start_arr['year']) % $freq)
{
continue;
}
if (adodb_date('dm',$ts) == adodb_date('dm',$event_start_daybegin_ts))
{
$this->add_adjusted_event($events,$event,$search_date_ymd);
}
break;
} // switch(recur-type)
} // for($date = ...)
if ($this->debug && ((int) $this->debug > 2 || $this->debug == 'insert_all_repetions' || $this->debug == 'check_move_horizont' || $this->debug == 'insert_all_repitions'))
{
$this->debug_message('bocal::insert_all_repetions(%1,start=%2,end=%3,events,exections=%4) events=%5',True,$event,$start_in,$end_in,$recur_exceptions,$events);
}
}
/**
* Adds one repetion of $event for $date_ymd to the $events array, after adjusting its start- and end-time
*
* @param $events array in which the event gets inserted
* @param $event array event to insert, it has start- and end-date of the first recurrence, not of $date_ymd
* @param $date_ymd int/string of the date of the event
*/
function add_adjusted_event(&$events,$event,$date_ymd)
{
$event_in = $event;
// calculate the new start- and end-time
$length_s = $this->date2ts($event['end']) - $this->date2ts($event['start']);
$event_start_arr = $this->date2array($event['start']);
$date_arr = $this->date2array((string) $date_ymd);
$date_arr['hour'] = $event_start_arr['hour'];
$date_arr['minute'] = $event_start_arr['minute'];
$date_arr['second'] = $event_start_arr['second'];
unset($date_arr['raw']); // else date2ts would use it
$event['start'] = $this->date2ts($date_arr);
$event['end'] = $event['start'] + $length_s;
$events[] = $event;
if ($this->debug && ($this->debug > 2 || $this->debug == 'add_adjust_event'))
{
$this->debug_message('bocal::add_adjust_event(,%1,%2) as %3',True,$event_in,$date_ymd,$event);
}
}
/**
* Fetch information about a resource
*
* We do some caching here, as the resource itself might not do it.
*
* @param string $uid string with one-letter resource-type and numerical resource-id, eg. "r19"
* @return array/boolean array with keys res_id,cat_id,name,useable (name definied by max_quantity in $this->resources),rights,responsible or false if $uid is not found
*/
function resource_info($uid)
{
static $res_info_cache = array();
if (!isset($res_info_cache[$uid]))
{
list($res_info_cache[$uid]) = $this->resources[$uid{0}]['info'] ? ExecMethod($this->resources[$uid{0}]['info'],substr($uid,1)) : false;
}
if ($this->debug && ($this->debug > 2 || $this->debug == 'resource_info'))
{
$this->debug_message('bocal::resource_info(%1) = %2',True,$uid,$res_info_cache[$uid]);
}
return $res_info_cache[$uid];
}
/**
* Checks if the current user has the necessary ACL rights
*
* The check is performed on an event or generally on the cal of an other user
*
* Note: Participating in an event is considered as haveing read-access on that event,
* even if you have no general read-grant from that user.
*
* @param int $needed necessary ACL right: EGW_ACL_{READ|EDIT|DELETE}
* @param mixed $event event as array or the event-id or 0 for a general check
* @param int $other uid to check (if event==0) or 0 to check against $this->user
* @param string $date_format='ts' date-format used for reading: 'ts'=timestamp, 'array'=array, 'string'=iso8601 string for xmlrpc
* @param mixed $date_to_read=null date used for reading, internal param for the caching
* @return boolean true permission granted, false for permission denied or null if event not found
*/
function check_perms($needed,$event=0,$other=0,$date_format='ts',$date_to_read=null)
{
$event_in = $event;
if ($other && !is_numeric($other))
{
$resource = $this->resource_info($other);
return $needed & $resource['rights'];
}
if (is_int($event) && $event == 0)
{
$owner = $other ? $other : $this->user;
}
else
{
if (!is_array($event))
{
$event = $this->read($event,$date_to_read,True,$date_format); // = no ACL check !!!
}
if (!is_array($event))
{
if ($this->xmlrpc)
{
$GLOBALS['server']->xmlrpc_error($GLOBALS['xmlrpcerr']['not_exist'],$GLOBALS['xmlrpcstr']['not_exist']);
}
return null; // event not found
}
$owner = $event['owner'];
$private = !$event['public'];
}
$user = $GLOBALS['egw_info']['user']['account_id'];
$grants = $this->grants[$owner];
if (is_array($event) && $needed == EGW_ACL_READ)
{
// Check if the $user is one of the participants or has a read-grant from one of them
// in that case he has an implicite READ grant for that event
//
foreach($event['participants'] as $uid => $accept)
{
if ($uid == $user || $uid < 0 && in_array($user,$GLOBALS['egw']->accounts->members($uid,true)))
{
// if we are a participant, we have an implicite READ and PRIVAT grant
$grants |= EGW_ACL_READ | EGW_ACL_PRIVATE;
break;
}
elseif ($this->grants[$uid] & EGW_ACL_READ)
{
// if we have a READ grant from a participant, we dont give an implicit privat grant too
$grants |= EGW_ACL_READ;
// we cant break here, as we might be a participant too, and would miss the privat grant
}
elseif (!is_numeric($uid))
{
// if we have a resource as participant
$resource = $this->resource_info($uid);
$grants |= $resource['rights'];
}
}
}
if ($GLOBALS['egw']->accounts->get_type($owner) == 'g' && $needed == EGW_ACL_ADD)
{
$access = False; // a group can't be the owner of an event
}
else
{
$access = $user == $owner || $grants & $needed && (!$private || $grants & EGW_ACL_PRIVATE);
}
if ($this->debug && ($this->debug > 2 || $this->debug == 'check_perms'))
{
$this->debug_message('bocal::check_perms(%1,%2,%3)=%4',True,ACL_TYPE_IDENTIFER.$needed,$event,$other,$access);
}
return $access;
}
/**
* Converts several date-types to a timestamp and optionaly converts user- to server-time
*
* @param $date mixed date to convert, should be one of the following types
* string (!) in form YYYYMMDD or iso8601 YYYY-MM-DDThh:mm:ss or YYYYMMDDThhmmss
* int already a timestamp
* array with keys 'second', 'minute', 'hour', 'day' or 'mday' (depricated !), 'month' and 'year'
* @param $user2server_time boolean conversation between user- and server-time default False == Off
*/
function date2ts($date,$user2server=False)
{
$date_in = $date;
switch(gettype($date))
{
case 'string': // YYYYMMDD or iso8601 YYYY-MM-DDThh:mm:ss string
if (is_numeric($date) && $date > 21000000)
{
$date = (int) $date; // this is already as timestamp
break;
}
// ToDo: evaluate evtl. added timezone
// removing all non-nummerical chars, gives YYYYMMDDhhmmss, independent of the iso8601 format
$date = str_replace(array('-',':','T','Z',' '),'',$date);
$date = array(
'year' => (int) substr($date,0,4),
'month' => (int) substr($date,4,2),
'day' => (int) substr($date,6,2),
'hour' => (int) substr($date,8,2),
'minute' => (int) substr($date,10,2),
'second' => (int) substr($date,12,2),
);
// fall-through
case 'array': // day, month and year keys
if (isset($date['raw']) && $date['raw']) // we already have a timestamp
{
$date = $date['raw'];
break;
}
if (!isset($date['year']) && isset($date['full']))
{
$date['year'] = (int) substr($date['full'],0,4);
$date['month'] = (int) substr($date['full'],4,2);
$date['day'] = (int) substr($date['full'],6,2);
}
$date = adodb_mktime((int)$date['hour'],(int)$date['minute'],(int)$date['second'],(int)$date['month'],
(int) (isset($date['day']) ? $date['day'] : $date['mday']),(int)$date['year']);
break;
case 'integer': // already a timestamp
break;
default: // eg. boolean, means now in user-time (!)
$date = $this->now_su;
break;
}
if ($user2server)
{
$date -= $this->tz_offset_s;
}
if ($this->debug && ($this->debug > 3 || $this->debug == 'date2ts'))
{
$this->debug_message('bocal::date2ts(%1,user2server=%2)=%3)',False,$date_in,$user2server,$date);
}
return $date;
}
/**
* Converts a date to an array and optionaly converts server- to user-time
*
* @param $date mixed date to convert
* @param $server2user_time boolean conversation between user- and server-time default False == Off
* @return array with keys 'second', 'minute', 'hour', 'day', 'month', 'year', 'raw' (timestamp) and 'full' (Ymd-string)
*/
function date2array($date,$server2user=False)
{
$date_called = $date;
if (!is_array($date) || count($date) < 8 || $server2user) // do we need a conversation
{
if (!is_int($date))
{
$date = $this->date2ts($date);
}
if ($server2user)
{
$date += $this->tz_offset_s;
}
$arr = array();
foreach(array('second'=>'s','minute'=>'i','hour'=>'H','day'=>'d','month'=>'m','year'=>'Y','full'=>'Ymd') as $key => $frmt)
{
$arr[$key] = (int) adodb_date($frmt,$date);
}
$arr['raw'] = $date;
}
if ($this->debug && ($this->debug > 3 || $this->debug == 'date2array'))
{
$this->debug_message('bocal::date2array(%1,server2user=%2)=%3)',False,$date_called,$server2user,$arr);
}
return $arr;
}
/**
* Converts a date as timestamp or array to a date-string and optionaly converts server- to user-time
*
* @param mixed $date integer timestamp or array with ('year','month',..,'second') to convert
* @param boolean $server2user_time conversation between user- and server-time default False == Off, not used if $format ends with \Z
* @param string $format='Ymd' format of the date to return, eg. 'Y-m-d\TH:i:sO' (2005-11-01T15:30:00+0100)
* @return string date formatted according to $format
*/
function date2string($date,$server2user=False,$format='Ymd')
{
$date_in = $date;
if (!$format) $format = 'Ymd';
if (is_array($date) && isset($date['full']) && !$server2user && $format == 'Ymd')
{
$date = $date['full'];
}
else
{
$date = $this->date2ts($date,False);
// if timezone is requested, we dont need to convert to user-time
if (($tz_used = substr($format,-1)) == 'O' || $tz_used == 'Z') $server2user = false;
if ($server2user && substr($format,-1) )
{
$date += $this->tz_offset_s;
}
if (substr($format,-2) == '\\Z') // GMT aka. Zulu time
{
$date = adodb_gmdate($format,$date);
}
else
{
$date = adodb_date($format,$date);
}
}
if ($this->debug && ($this->debug > 3 || $this->debug == 'date2string'))
{
$this->debug_message('bocal::date2string(%1,server2user=%2,format=%3)=%4)',False,$date_in,$server2user,$format,$date);
}
return $date;
}
/**
* Formats a date given as timestamp or array
*
* @param mixed $date integer timestamp or array with ('year','month',..,'second') to convert
* @param string/boolean $format='' default common_prefs[dateformat], common_prefs[timeformat], false=time only, true=date only
* @return string the formated date (incl. time)
*/
function format_date($date,$format='')
{
$timeformat = $this->common_prefs['timeformat'] != '12' ? 'H:i' : 'h:i a';
if ($format === '') // date+time wanted
{
$format = $this->common_prefs['dateformat'].', '.$timeformat;
}
elseif ($format === false) // time wanted
{
$format = $timeformat;
}
elseif ($format === true)
{
$format = $this->common_prefs['dateformat'];
}
return adodb_date($format,$this->date2ts($date,False));
}
/**
* Gives out a debug-message with certain parameters
*
* All permanent debug-messages in the calendar should be done by this function !!!
* (In future they may be logged or sent as xmlrpc-faults back.)
*
* Permanent debug-message need to make sure NOT to give secret information like passwords !!!
*
* This function do NOT honor the setting of the debug variable, you may use it like
* if ($this->debug > N) $this->debug_message('Error ;-)');
*
* The parameters get formated depending on their type. ACL-values need a ACL_TYPE_IDENTIFER prefix.
*
* @param $msg string message with parameters/variables like lang(), eg. '%1'
* @param $backtrace include a function-backtrace, default True=On
* should only be set to False=Off, if your code ensures a call with backtrace=On was made before !!!
* @param $param mixed a variable number of parameters, to be inserted in $msg
* arrays get serialized with print_r() !
*/
function debug_message($msg,$backtrace=True)
{
static $acl2string = array(
0 => 'ACL-UNKNOWN',
EGW_ACL_READ => 'ACL_READ',
EGW_ACL_ADD => 'ACL_ADD',
EGW_ACL_EDIT => 'ACL_EDIT',
EGW_ACL_DELETE => 'ACL_DELETE',
EGW_ACL_PRIVATE => 'ACL_PRIVATE',
);
for($i = 2; $i < func_num_args(); ++$i)
{
$param = func_get_arg($i);
if (is_null($param))
{
$param='NULL';
}
else
{
switch(gettype($param))
{
case 'string':
if (substr($param,0,strlen(ACL_TYPE_IDENTIFER))== ACL_TYPE_IDENTIFER)
{
$param = (int) substr($param,strlen(ACL_TYPE_IDENTIFER));
$param = (isset($acl2string[$param]) ? $acl2string[$param] : $acl2string[0])." ($param)";
}
else
{
$param = "'$param'";
}
break;
case 'array':
case 'object':
list(,$content) = @each($param);
$do_pre = is_array($param) ? count($param) > 6 || is_array($content)&&count($content) : True;
$param = ($do_pre ? '<pre>' : '').print_r($param,True).($do_pre ? '</pre>' : '');
break;
case 'boolean':
$param = $param ? 'True' : 'False';
break;
case 'integer':
if ($param >= mktime(0,0,0,1,1,2000)) $param = adodb_date('Y-m-d H:i:s',$param)." ($param)";
break;
}
}
$msg = str_replace('%'.($i-1),$param,$msg);
}
echo '<p>'.$msg."<br>\n".($backtrace ? 'Backtrace: '.function_backtrace(1)."</p>\n" : '').str_repeat(' ',4096);
}
/**
* Formats one or two dates (range) as long date (full monthname), optionaly with a time
*
* @param mixed $first first date
* @param mixed $last=0 last date if != 0 (default)
* @param boolean $display_time=false should a time be displayed too
* @param boolean $display_day=false should a day-name prefix the date, eg. monday June 20, 2006
* @return string with formated date
*/
function long_date($first,$last=0,$display_time=false,$display_day=false)
{
$first = $this->date2array($first);
if ($last)
{
$last = $this->date2array($last);
}
$datefmt = $this->common_prefs['dateformat'];
$timefmt = $this->common_prefs['timeformat'] == 12 ? 'h:i a' : 'H:i';
$month_before_day = strtolower($datefmt[0]) == 'm' ||
strtolower($datefmt[2]) == 'm' && $datefmt[4] == 'd';
if ($display_day)
{
$range = lang(adodb_date('l',$first['raw'])).($this->common_prefs['dateformat']{0} != 'd' ? ' ' : ', ');
}
for ($i = 0; $i < 5; $i += 2)
{
switch($datefmt[$i])
{
case 'd':
$range .= $first['day'] . ($datefmt[1] == '.' ? '.' : '');
if ($first['month'] != $last['month'] || $first['year'] != $last['year'])
{
if (!$month_before_day)
{
$range .= ' '.lang(strftime('%B',$first['raw']));
}
if ($first['year'] != $last['year'] && $datefmt[0] != 'Y')
{
$range .= ($datefmt[0] != 'd' ? ', ' : ' ') . $first['year'];
}
if ($display_time)
{
$range .= ' '.adodb_date($timefmt,$first['raw']);
}
if (!$last)
{
return $range;
}
$range .= ' - ';
if ($first['year'] != $last['year'] && $datefmt[0] == 'Y')
{
$range .= $last['year'] . ', ';
}
if ($month_before_day)
{
$range .= lang(strftime('%B',$last['raw']));
}
}
else
{
if ($display_time)
{
$range .= ' '.adodb_date($timefmt,$first['raw']);
}
$range .= ' - ';
}
$range .= ' ' . $last['day'] . ($datefmt[1] == '.' ? '.' : '');
break;
case 'm':
case 'M':
$range .= ' '.lang(strftime('%B',$month_before_day ? $first['raw'] : $last['raw'])) . ' ';
break;
case 'Y':
if ($datefmt[0] != 'm')
{
$range .= ' ' . ($datefmt[0] == 'Y' ? $first['year'].($datefmt[2] == 'd' ? ', ' : ' ') : $last['year'].' ');
}
break;
}
}
if ($display_time && $last)
{
$range .= ' '.adodb_date($timefmt,$last['raw']);
}
if ($datefmt[4] == 'Y' && $datefmt[0] == 'm')
{
$range .= ', ' . $last['year'];
}
return $range;
}
/**
* Displays a timespan, eg. $both ? "10:00 - 13:00: 3h" (10:00 am - 1 pm: 3h) : "10:00 3h" (10:00 am 3h)
*
* @param int $start_m start time in minutes since 0h
* @param int $end_m end time in minutes since 0h
* @param boolean $both=false display the end-time too, duration is always displayed
*/
function timespan($start_m,$end_m,$both=false)
{
$duration = $end_m - $start_m;
if ($end_m == 24*60-1) ++$duration;
$duration = floor($duration/60).lang('h').($duration%60 ? $duration%60 : '');
$timespan = $t = $GLOBALS['egw']->common->formattime(sprintf('%02d',$start_m/60),sprintf('%02d',$start_m%60));
if ($both) // end-time too
{
$timespan .= ' - '.$GLOBALS['egw']->common->formattime(sprintf('%02d',$end_m/60),sprintf('%02d',$end_m%60));
// dont double am/pm if they are the same in both times
if ($this->common_prefs['timeformat'] == 12 && substr($timespan,-2) == substr($t,-2))
{
$timespan = str_replace($t,substr($t,0,-3),$timespan);
}
$timespan .= ':';
}
return $timespan . ' ' . $duration;
}
/**
* Converts a participant into a (readable) user- or resource-name
*
* @param $id string/int id of user or resource
* @return string with name
*/
function participant_name($id,$use_type=false)
{
static $id2lid = array();
if ($use_type && $use_type != 'u') $id = $use_type.$id;
if (!isset($id2lid[$id]))
{
if (!is_numeric($id))
{
if (!is_object($GLOBALS['egw']->link))
{
$GLOBALS['egw']->link =& CreateObject('phpgwapi.bolink');
}
$id2lid[$id] = $GLOBALS['egw']->link->title($this->resources[$id{0}]['app'],substr($id,1));
}
else
{
$id2lid[$id] = $GLOBALS['egw']->common->grab_owner_name($id);
}
}
return $id2lid[$id];
}
/**
* Converts participants array of an event into array of (readable) participant-names with status
*
* @param array $event event-data
* @param boolean $long_status=false should the long/verbose status or an icon be use
* @param boolean $show_group_invitation=false show group-invitations (status == 'G') or not (default)
* @return array with id / names with status pairs
*/
function participants($event,$long_status=false,$show_group_invitation=false)
{
//_debug_array($event);
$names = array();
foreach($event['participants'] as $id => $status)
{
if ($status == 'G' && !$show_group_invitation) continue; // dont show group-invitation
if (!$long_status)
{
if (!is_object($GLOBALS['egw']->html))
{
$GLOBALS['egw']->html =& CreateObject('phpgwapi.html');
}
switch($status)
{
case 'A': // accepted
$status = $GLOBALS['egw']->html->image('calendar','agt_action_success',$this->verbose_status[$status]);
break;
case 'R': // rejected
$status = $GLOBALS['egw']->html->image('calendar','agt_action_fail',$this->verbose_status[$status]);
break;
case 'T': // tentative
$status = $GLOBALS['egw']->html->image('calendar','tentative',$this->verbose_status[$status]);
break;
case 'U': // no response = unknown
$status = $GLOBALS['egw']->html->image('calendar','cnr-pending',$this->verbose_status[$status]);
break;
case 'G': // group invitation
// Todo: Image, seems not to be used
$status = '('.$this->verbose_status[$status].')';
break;
}
}
else
{
$status = '('.$this->verbose_status[$status].')';
}
$names[$id] = $this->participant_name($id).' '.$status;
}
return $names;
}
/**
* Converts category string of an event into array of (readable) category-names
*
* @param $category string cat-id (multiple id's commaseparated)
* @param $color int color of the category, if multiple cats, the color of the last one with color is returned
* @return array with id / names
*/
function categories($category,&$color)
{
static $id2cat = array();
$cats = array();
$color = 0;
if (!is_object($this->cats))
{
$this->cats =& CreateObject('phpgwapi.categories','','calendar');
}
foreach(explode(',',$category) as $cat_id)
{
if (!$cat_id) continue;
if (!isset($id2cat[$cat_id]))
{
list($id2cat[$cat_id]) = $this->cats->return_single($cat_id);
$id2cat[$cat_id]['data'] = unserialize($id2cat[$cat_id]['data']);
}
$cat = $id2cat[$cat_id];
if ($cat['data']['color'] || preg_match('/(#[0-9A-Fa-f]{6})/',$cat['description'],$parts))
{
$color = $cat['data']['color'] ? $cat['data']['color'] : $parts[1];
}
$cats[$cat_id] = stripslashes($cat['name']);
}
return $cats;
}
/* This is called only by list_cals(). It was moved here to remove fatal error in php5 beta4 */
function _list_cals_add($id,&$users,&$groups)
{
$name = $GLOBALS['egw']->common->grab_owner_name($id);
if (($type = $GLOBALS['egw']->accounts->get_type($id)) == 'g')
{
$arr = &$groups;
}
else
{
$arr = &$users;
}
$arr[$name] = Array(
'grantor' => $id,
'value' => ($type == 'g' ? 'g_' : '') . $id,
'name' => $name
);
}
/**
* generate list of user- / group-calendars for the selectbox in the header
* @return alphabeticaly sorted array with groups first and then users
*/
function list_cals()
{
$users = $groups = array();
foreach($this->grants as $id => $rights)
{
$this->_list_cals_add($id,$users,$groups);
}
if ($memberships = $GLOBALS['egw']->accounts->membership($GLOBALS['egw_info']['user']['account_id']))
{
foreach($memberships as $group_info)
{
$this->_list_cals_add($group_info['account_id'],$users,$groups);
if ($account_perms = $GLOBALS['egw']->acl->get_ids_for_location($group_info['account_id'],EGW_ACL_READ,'calendar'))
{
foreach($account_perms as $id)
{
$this->_list_cals_add($id,$users,$groups);
}
}
}
}
uksort($users,'strnatcasecmp');
uksort($groups,'strnatcasecmp');
return $users + $groups; // users first and then groups, both alphabeticaly
}
/**
* Convert the recure-information of an event, into a human readable string
*
* @param array $event
* @return string
*/
function recure2string($event)
{
$str = '';
// Repeated Events
if($event['recur_type'] != MCAL_RECUR_NONE)
{
$str = lang($this->recur_types[$event['recur_type']]);
$str_extra = array();
if ($event['recur_enddate'])
{
$str_extra[] = lang('ends').': '.lang($this->format_date($event['recur_enddate'],'l')).', '.$this->long_date($event['recur_enddate']).' ';
}
// only weekly uses the recur-data (days) !!!
if($event['recur_type'] == MCAL_RECUR_WEEKLY)
{
$repeat_days = array();
foreach ($this->recur_days as $mcal_mask => $dayname)
{
if ($event['recur_data'] & $mcal_mask)
{
$repeat_days[] = lang($dayname);
}
}
if(count($repeat_days))
{
$str_extra[] = lang('days repeated').': '.implode(', ',$repeat_days);
}
}
if($event['recur_interval'] > 1)
{
$str_extra[] = lang('Interval').': '.$event['recur_interval'];
}
if(count($str_extra))
{
$str .= ' ('.implode(', ',$str_extra).')';
}
}
return $str;
}
/**
* Read the holidays for a given $year
*
* The holidays get cached in the session (performance), so changes in holidays or birthdays do NOT affect a current session!!!
*
* @param integer $year=0 year, defaults to 0 = current year
* @return array indexed with Ymd of array of holidays. A holiday is an array with the following fields:
* index: numerical unique id
* locale: string, 2-char short for the nation
* name: string
* day: numerical day in month
* month: numerical month
* occurence: numerical year or 0 for every year
* dow: day of week, 0=sunday, .., 6= saturday
* observande_rule: boolean
*/
function read_holidays($year=0)
{
if (!$year) $year = (int) date('Y',$this->now_su);
if (!$this->cached_holidays) // try reading the holidays from the session
{
$this->cached_holidays = $GLOBALS['egw']->session->appsession('holidays','calendar');
}
if (!isset($this->cached_holidays[$year]))
{
if (!is_object($this->holidays))
{
$this->holidays =& CreateObject('calendar.boholiday');
}
$this->holidays->prepare_read_holidays($year);
$this->cached_holidays[$year] = $this->holidays->read_holiday();
// search for birthdays
if ($GLOBALS['egw_info']['server']['hide_birthdays'] != 'yes')
{
$contacts =& CreateObject('phpgwapi.contacts');
$bdays =& $contacts->read(0,0,array('id','n_family','n_given','n_prefix','n_middle','bday'),'',"bday=!'',n_family=!''",'ASC','bday');
if ($bdays)
{
// sort by month and day only
usort($bdays,create_function('$a,$b','return (int) $a[\'bday\'] == (int) $b[\'bday\'] ? strcmp($a[\'bday\'],$b[\'bday\']) : (int) $a[\'bday\'] - (int) $b[\'bday\'];'));
foreach($bdays as $pers)
{
list($m,$d,$y) = explode('/',$pers['bday']);
if ($y > $year) continue; // not yet born
$this->cached_holidays[$year][sprintf('%04d%02d%02d',$year,$m,$d)][] = array(
'day' => $d,
'month' => $m,
'occurence' => 0,
'name' => lang('Birthday').' '.($pers['n_given'] ? $pers['n_given'] : $pers['n_prefix']).' '.$pers['n_middle'].' '.
$pers['n_family'].($y && !$GLOBALS['egw_info']['server']['hide_birthdays'] ? ' ('.$y.')' : ''),
'birthyear' => $y, // this can be used to identify birthdays from holidays
);
}
}
}
// store holidays and birthdays in the session
$this->cached_holidays = $GLOBALS['egw']->session->appsession('holidays','calendar',$this->cached_holidays);
}
if ((int) $this->debug >= 2 || $this->debug == 'read_holidays')
{
$this->debug_message('bocal::read_holidays(%1)=%2',true,$year,$this->cached_holidays[$year]);
}
return $this->cached_holidays[$year];
}
/**
* get title for an event identified by $event
*
* Is called as hook to participate in the linking
*
* @param int/array $entry int cal_id or array with event
* @param string/boolean string with title, null if not found or false if not read perms
*/
function link_title($event)
{
if (!is_array($event) && (int) $event > 0)
{
$event = $this->read($event);
}
if (!is_array($event))
{
return $event;
}
return $this->format_date($event['start']) . ': ' . $event['title'];
}
/**
* query calendar for events matching $pattern
*
* Is called as hook to participate in the linking
*
* @param string $pattern pattern to search
* @return array with pm_id - title pairs of the matching entries
*/
function link_query($pattern)
{
$result = array();
foreach((array) $this->search(array('query' => $pattern)) as $event)
{
$result[$event['id']] = $this->link_title($event);
}
return $result;
}
/**
* Hook called by link-class to include calendar in the appregistry of the linkage
*
* @param array/string $location location and other parameters (not used)
* @return array with method-names
*/
function search_link($location)
{
return array(
'query' => 'calendar.bocal.link_query',
'title' => 'calendar.bocal.link_title',
'view' => array(
'menuaction' => 'calendar.uiforms.edit',
),
'view_id' => 'cal_id',
'view_popup' => '750x400',
'add' => array(
'menuaction' => 'calendar.uiforms.edit',
),
'add_app' => 'link_app',
'add_id' => 'link_id',
'add_popup' => '750x400',
);
}
/**
* sets the default prefs, if they are not already set (on a per pref. basis)
*
* It sets a flag in the app-session-data to be called only once per session
*/
function check_set_default_prefs()
{
if ($this->cal_prefs['interval'] && ($set = $GLOBALS['egw']->session->appsession('default_prefs_set','calendar')))
{
return;
}
$GLOBALS['egw']->session->appsession('default_prefs_set','calendar','set');
$default_prefs =& $GLOBALS['egw']->preferences->default['calendar'];
if (!($planner_start_with_group = $GLOBALS['egw']->accounts->name2id('Default')))
{
$planner_start_with_group = '0';
}
$subject = lang('Calendar Event') . ' - $$action$$: $$startdate$$ $$title$$'."\n";
$defaults = array(
'defaultcalendar' => 'week',
'mainscreen_showevents' => '0',
'summary' => 'no',
'receive_updates' => 'no',
'update_format' => 'extended',
'notifyAdded' => $subject . lang ('You have a meeting scheduled for %1','$$startdate$$'),
'notifyCanceled' => $subject . lang ('Your meeting scheduled for %1 has been canceled','$$startdate$$'),
'notifyModified' => $subject . lang ('Your meeting that had been scheduled for %1 has been rescheduled to %2','$$olddate$$','$$startdate$$'),
'notifyDisinvited'=> $subject . lang ('You have been disinvited from the meeting at %1','$$startdate$$'),
'notifyResponse' => $subject . lang ('On %1 %2 %3 your meeting request for %4','$$date$$','$$fullname$$','$$action$$','$$startdate$$'),
'notifyAlarm' => lang('Alarm for %1 at %2 in %3','$$title$$','$$startdate$$','$$location$$')."\n".lang ('Here is your requested alarm.'),
'show_rejected' => '0',
'display_status' => '1',
'weekdaystarts' => 'Monday',
'workdaystarts' => '9',
'workdayends' => '17',
'interval' => '30',
'defaultlength' => '60',
'planner_start_with_group' => $planner_start_with_group,
'defaultfilter' => 'all',
'default_private' => '0',
);
foreach($defaults as $var => $default)
{
if (!isset($default_prefs[$var]) || (string)$default_prefs[$var] == '')
{
$GLOBALS['egw']->preferences->add('calendar',$var,$default,'default');
$this->cal_prefs[$var] = $default;
$need_save = True;
}
}
if ($need_save)
{
$GLOBALS['egw']->preferences->save_repository(False,'default');
}
}
/**
* Get the freebusy URL of a user
*
* @param int/string $user account_id or account_lid
* @param string $pw=null password
*/
function freebusy_url($user,$pw=null)
{
if (is_numeric($user)) $user = $GLOBALS['egw']->accounts->id2name($user);
return (!$GLOBALS['egw_info']['server']['webserver_url'] || $GLOBALS['egw_info']['server']['webserver_url']{0} == '/' ?
($_SERVER['HTTPS'] ? 'https://' : 'http://').$_SERVER['HTTP_HOST'] : '').
$GLOBALS['egw_info']['server']['webserver_url'].'/calendar/freebusy.php?user='.urlencode($user).
($pw ? '&password='.urlencode($pw) : '');
}
}
if (!function_exists('array_intersect_key')) // php5.1 function
{
function array_intersect_key($array1,$array2)
{
$intersection = $keys = array();
foreach(func_get_args() as $arr)
{
$keys[] = array_keys((array)$arr);
}
foreach(call_user_func_array('array_intersect',$keys) as $key)
{
$intersection[$key] = $array1[$key];
}
return $intersection;
}
}
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