forked from extern/egroupware
Fixed CalDAV/GroupDAV to include all exceptions of a series in the
resource of the series master. Now the status of single recurrences of a serie are send to the clients as (virtual) exceptions as Jaytrax&Joerg implemented it already for SyncML. The implementation is unfortunately a little different, as CalDAV differs from SyncML and I dont know the SyncML part that well. Maybe we can re-unify the code again together. Tested so far with Tb3/Lightning1.0b and a little with iPhone. Please let me know, if you run into problems with other clients.
This commit is contained in:
Ralf Becker
parent
fdf4dcb9b9
commit
dd0a5c1b13
@ -35,6 +35,22 @@ class calendar_groupdav extends groupdav_handler
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//'EXDATE'
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//'RECURRENCE-ID'
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);
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/**
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* Does client understand exceptions to be included in VCALENDAR component of series master sharing its UID
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*
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* That also means no EXDATE for these exceptions!
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*
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* Setting it to false, should give the old behavior used in 1.6 (hopefully) no client needs that.
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*
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* @var boolean
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*/
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var $client_shared_uid_exceptions = true;
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/**
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* Are we using id or uid for the path/url
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*/
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const PATH_ATTRIBUTE = 'id';
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/**
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* Constructor
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@ -50,8 +66,6 @@ class calendar_groupdav extends groupdav_handler
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$this->bo = new calendar_boupdate();
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}
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const PATH_ATTRIBUTE = 'id';
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/**
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* Create the path for an event
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*
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@ -96,13 +110,17 @@ class calendar_groupdav extends groupdav_handler
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'daywise' => false,
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'date_format' => 'server',
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);
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if ($this->debug > 1) error_log(__METHOD__."($path,,,$user,$id) cal_filters=".array2string($cal_filters));
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//error_log(__METHOD__."($path,,,$user,$id) cal_filters=".array2string($cal_filters));
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if ($this->client_shared_uid_exceptions)
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{
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$cal_filters['query']['cal_reference'] = 0;
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}
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// process REPORT filters or multiget href's
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if (($id || $options['root']['name'] != 'propfind') && !$this->_report_filters($options,$cal_filters,$id))
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{
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return false;
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}
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if ($this->debug > 1) error_log(__METHOD__."($path,,,$user,$id) cal_filters=".array2string($cal_filters));
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// check if we have to return the full calendar data or just the etag's
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if (!($calendar_data = $options['props'] == 'all' && $options['root']['ns'] == groupdav::CALDAV) && is_array($options['props']))
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{
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@ -115,10 +133,19 @@ class calendar_groupdav extends groupdav_handler
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}
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}
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}
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if (($events =& $this->bo->search($cal_filters)))
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$events =& $this->bo->search($cal_filters);
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if ($events)
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{
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// get all max user modified times at once
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foreach($events as &$event)
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{
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$ids[] = $event['id'];
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}
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$max_user_modified = $this->bo->so->max_user_modified($ids);
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foreach($events as &$event)
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{
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$event['max_user_modified'] = $max_user_modified[$event['id']];
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//header('X-EGROUPWARE-EVENT-'.$event['id'].': '.$event['title'].': '.date('Y-m-d H:i:s',$event['start']).' - '.date('Y-m-d H:i:s',$event['end']));
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$props = array(
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HTTP_WebDAV_Server::mkprop('getetag',$this->get_etag($event)),
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@ -131,8 +158,7 @@ class calendar_groupdav extends groupdav_handler
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//error_log(__FILE__ . __METHOD__ . "Calendar Data : $calendar_data");
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if ($calendar_data)
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{
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if (is_null($handler)) $handler = $this->_get_handler();
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$content = $handler->exportVCal(array($event),'2.0','PUBLISH');
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$content = $this->iCal($event);
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$props[] = HTTP_WebDAV_Server::mkprop('getcontentlength',bytes($content));
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$props[] = HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-data',$content);
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}
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@ -172,29 +198,29 @@ class calendar_groupdav extends groupdav_handler
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switch($filter['name'])
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{
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case 'comp-filter':
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if ($this->debug > 1) error_log(__METHOD__."($path,...) comp-filter='{$filter['attrs']['name']}'");
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if ($this->debug > 1) error_log(__METHOD__."($options[path],...) comp-filter='{$filter['attrs']['name']}'");
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switch($filter['attrs']['name'])
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{
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case 'VTODO':
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return false; // return nothing for now, todo: check if we can pass it on to the infolog handler
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// todos are handled by the infolog handler
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$infolog_handler = new groupdav_infolog();
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return $infolog_handler->propfind($path,$options,$files,$user,$method);
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//$infolog_handler = new groupdav_infolog();
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//return $infolog_handler->propfind($path,$options,$files,$user,$method);
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case 'VCALENDAR':
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case 'VEVENT':
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break; // that's our default anyway
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}
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break;
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case 'prop-filter':
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if ($this->debug > 1) error_log(__METHOD__."($path,...) prop-filter='{$filter['attrs']['name']}'");
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if ($this->debug > 1) error_log(__METHOD__."($options[path],...) prop-filter='{$filter['attrs']['name']}'");
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$prop_filter = $filter['attrs']['name'];
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break;
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case 'text-match':
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if ($this->debug > 1) error_log(__METHOD__."($path,...) text-match: $prop_filter='{$filter['data']}'");
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if ($this->debug > 1) error_log(__METHOD__."($options[path],...) text-match: $prop_filter='{$filter['data']}'");
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if (!isset($this->filter_prop2cal[strtoupper($prop_filter)]))
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{
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if ($this->debug) error_log(__METHOD__."($path,".array2string($options).",,$user) unknown property '$prop_filter' --> ignored");
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if ($this->debug) error_log(__METHOD__."($options[path],".array2string($options).",...) unknown property '$prop_filter' --> ignored");
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}
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else
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{
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@ -203,15 +229,15 @@ class calendar_groupdav extends groupdav_handler
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unset($prop_filter);
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break;
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case 'param-filter':
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if ($this->debug) error_log(__METHOD__."($path,...) param-filter='{$filter['attrs']['name']}' not (yet) implemented!");
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if ($this->debug) error_log(__METHOD__."($options[path],...) param-filter='{$filter['attrs']['name']}' not (yet) implemented!");
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break;
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case 'time-range':
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if ($this->debug > 1) error_log(__FILE__ . __METHOD__."($path,...) time-range={$filter['attrs']['start']}-{$filter['attrs']['end']}");
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if ($this->debug > 1) error_log(__FILE__ . __METHOD__."($options[path],...) time-range={$filter['attrs']['start']}-{$filter['attrs']['end']}");
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$cal_filters['start'] = $filter['attrs']['start'];
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$cal_filters['end'] = $filter['attrs']['end'];
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break;
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default:
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if ($this->debug) error_log(__METHOD__."($path,".array2string($options).",,$user) unknown filter --> ignored");
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if ($this->debug) error_log(__METHOD__."($options[path],".array2string($options).",...) unknown filter --> ignored");
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break;
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}
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}
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@ -261,7 +287,7 @@ class calendar_groupdav extends groupdav_handler
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$cal_filters['query'][] = 'egw_cal.cal_id IN ('.implode(',',array_map(create_function('$n','return (int)$n;'),$ids)).')';
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}
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if ($this->debug > 1) error_log(__FILE__ . __METHOD__ ."($path,,,$user,$id) calendar-multiget: ids=".implode(',',$ids));
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if ($this->debug > 1) error_log(__FILE__ . __METHOD__ ."($options[path],...,$id) calendar-multiget: ids=".implode(',',$ids));
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}
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return true;
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}
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@ -279,13 +305,96 @@ class calendar_groupdav extends groupdav_handler
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{
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return $event;
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}
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$handler = $this->_get_handler();
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$options['data'] = $handler->exportVCal(array($event),'2.0','PUBLISH');
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$options['data'] = $this->iCal($event);
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$options['mimetype'] = 'text/calendar; charset=utf-8';
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header('Content-Encoding: identity');
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header('ETag: '.$this->get_etag($event));
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return true;
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}
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/**
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* Generate an iCal for the given event
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*
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* Taking into account virtual an real exceptions for recuring events
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*
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* @param array $event
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* @return string
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*/
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private function iCal(array $event)
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{
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static $handler = null;
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if (is_null($handler)) $handler = $this->_get_handler();
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$events = array($event);
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// for recuring events we have to add the exceptions
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if ($this->client_shared_uid_exceptions && $event['recur_type'] && !empty($event['uid']))
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{
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$events =& self::get_series($event['uid'],$this->bo);
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}
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elseif(!$this->client_shared_uid_exceptions && $event['reference'])
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{
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$events[0]['uid'] .= '-'.$event['id']; // force a different uid
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}
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return $handler->exportVCal($events,'2.0','PUBLISH');
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}
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/**
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* Get array with events of a series identified by its UID (master and all exceptions)
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*
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* Maybe that should be part of calendar_bo
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*
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* @param string $uid UID
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* @param calendar_bo $bo=null calendar_bo object to reuse for search call
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* @return array
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*/
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private static function &get_series($uid,calendar_bo $bo=null)
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{
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if (is_null($bo)) $bo = new calendar_bo();
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$events =& $bo->search(array(
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'query' => array('cal_uid' => $uid),
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'daywise' => false,
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'date_format' => 'server',
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));
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$master = null;
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foreach($events as $k => &$recurrence)
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{
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if (!isset($master)) // first event is allways the series master
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{
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$master =& $events[$k];
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//error_log('master: '.array2string($master));
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continue; // nothing to change
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}
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if ($recurrence['id'] != $master['id']) // real exception
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{
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//error_log('real exception: '.array2string($recurrence));
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// remove from masters recur_exception, as exception is include
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// at least Lightning "understands" EXDATE as exception from what's included
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// in the whole resource / VCALENDAR component
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// not removing it causes Lightning to remove the exception itself
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if (($k = array_search($recurrence['recurrence'],$master['recur_exception'])) !== false)
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{
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unset($master['recur_exception'][$k]);
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}
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continue; // nothing to change
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}
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// now we need to check if this recurrence is an exception
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if ($master['participants'] == $recurrence['participants'])
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{
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//error_log('NO exception: '.array2string($recurrence));
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unset($events[$k]); // no exception --> remove it
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continue;
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}
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// this is a virtual excetion now (no extra event/cal_id in DB)
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//error_log('virtual exception: '.array2string($recurrence));
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$recurrence['recurrence'] = $recurrence['start'];
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$recurrence['reference'] = $master['id'];
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$recurrence['recur_type'] = MCAL_RECUR_NONE; // is set, as this is a copy of the master
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// not for included exceptions (Lightning): $master['recur_exception'][] = $recurrence['start'];
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}
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return $events;
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}
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/**
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* Handle put request for an event
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@ -303,8 +412,7 @@ class calendar_groupdav extends groupdav_handler
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if (!is_null($event) && !is_array($event))
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{
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if($this->debug) error_log(__METHOD__.print_r($event,true).function_backtrace());
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if($this->debug) error_log(__METHOD__.print_r($event,true).function_backtrace());
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return $event;
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}
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$handler = $this->_get_handler();
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@ -324,12 +432,78 @@ class calendar_groupdav extends groupdav_handler
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}
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return true;
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}
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/**
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* Fix event series with exceptions, called by calendar_ical::importVCal():
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* a) only series master = first event got cal_id from URL
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* b) exceptions need to be checked if they are already in DB or new
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* c) recurrence-id of (real not virtual) exceptions need to be re-added to master
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*
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* @param array &$events
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*/
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static function fix_series(array &$events)
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{
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foreach($events as $n => $event) error_log(__METHOD__." $n before: ".array2string($event));
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$master =& $events[0];
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$bo = new calendar_boupdate();
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// get array with orginal recurrences indexed by recurrence-id
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$org_recurrences = array();
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foreach(self::get_series($master['uid'],$bo) as $event)
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{
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if ($event['recurrence'])
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{
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$org_recurrences[$event['recurrence']] = $event;
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}
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}
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// assign cal_id's to already existing recurrences and evtl. re-add recur_exception to master
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foreach($events as &$recurrence)
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{
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if ($recurrence['id'] || !$recurrence['recurrence']) continue; // master
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// from now on we deal with exceptions
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$org_recurrence = $org_recurrences[$recurrence['recurrence']];
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if (isset($org_recurrence)) // already existing recurrence
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{
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error_log(__METHOD__.'() setting id #'.$org_recurrence['id']).' for '.$recurrence['recurrence'].' = '.date('Y-m-d H:i:s',$recurrence['recurrence']);
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$recurrence['id'] = $org_recurrence['id'];
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// re-add (non-virtual) exceptions to master's recur_exception
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if ($recurrence['id'] != $master['id'])
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{
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error_log(__METHOD__.'() re-adding recur_exception '.$recurrence['recurrence'].' = '.date('Y-m-d H:i:s',$recurrence['recurrence']));
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$master['recur_exception'][] = $recurrence['recurrence'];
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}
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// remove recurrence to be able to detect deleted exceptions
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unset($org_recurrences[$recurrence['recurrence']]);
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}
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}
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// delete not longer existing recurrences
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foreach($org_recurrences as $org_recurrence)
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{
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if ($org_recurrence['id'] != $master['id']) // non-virtual recurrence
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{
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error_log(__METHOD__.'() deleting #'.$org_recurrence['id']);
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$bo->delete($org_recurrence['id']); // might fail because of permissions
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}
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else // virtual recurrence
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{
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error_log(__METHOD__.'() ToDO: delete virtual exception '.$org_recurrence['recurrence'].' = '.date('Y-m-d H:i:s',$org_recurrence['recurrence']));
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// todo: reset status and participants to master default
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}
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}
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foreach($events as $n => $event) error_log(__METHOD__." $n after: ".array2string($event));
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}
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/**
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* Handle delete request for an event
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*
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* If current user has no right to delete the event, but is an attendee, we reject the event for him.
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*
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* @todo remove (non-virtual) exceptions, if series master gets deleted
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* @param array &$options
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* @param int $id
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* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
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@ -372,20 +546,41 @@ class calendar_groupdav extends groupdav_handler
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*/
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function get_etag($entry)
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{
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$e_in = $entry;
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if (!is_array($entry))
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{
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$entry = $this->read($entry);
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}
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if (!$entry['id'] || !isset($entry['etag']) || !isset($entry['participants'])) {
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if ($this->debug > 1) error_log(__FILE__ . __METHOD__."($e_in): id=$entry[id], etag=$entry[etag], isset(participants)=".(int)isset($entry['participants']).", title=$entry[title]: id, etag or participants not set!!!");
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}
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$etag = $entry['id'].':'.$entry['etag'];
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// add a hash over the participants and their stati
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ksort($entry['participants']); // create a defined order
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$etag .= ':'.md5(serialize($entry['participants']));
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//error_log(__FILE__ .__METHOD__ . "($entry[id] ($entry[etag]): $entry[title] --> etag=$etag");
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return $etag;
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// use new MAX(modification date) of egw_cal_user table (deals with virtual exceptions too)
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if (isset($entry['max_user_modified']))
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{
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$etag .= ':'.$entry['max_user_modified'];
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}
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else
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{
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$etag .= ':'.$this->bo->so->max_user_modified($entry['id']);
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}
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// include exception etags into our own etag, if exceptions are included
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if ($this->client_shared_uid_exceptions && !empty($entry['uid']) &&
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$entry['recur_type'] != MCAL_RECUR_NONE && $entry['recur_exception'])
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{
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$events =& $this->bo->search(array(
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'query' => array('cal_uid' => $entry['uid']),
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'daywise' => false,
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'enum_recuring' => false,
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'date_format' => 'server',
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));
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foreach($events as $k => &$recurrence)
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{
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if ($recurrence['reference']) // ignore series master
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{
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$etag .= ':'.substr($this->get_etag($recurrence),1,-1);
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}
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}
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}
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//error_log(__METHOD__ . "($entry[id] ($entry[etag]): $entry[title] --> etag=$etag");
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return '"'.$etag.'"';
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}
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/**
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@ -747,6 +747,16 @@ class calendar_ical extends calendar_boupdate
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if (!is_array($this->supportedFields)) $this->setSupportedFields();
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// check if we are importing an event series with exceptions in CalDAV
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// only first event / series master get's cal_id from URL
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// other events are exceptions and need to be checked if they are new
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// and for real (not status only) exceptions their recurrence-id need
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// to be included as recur_exception to the master
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if ($cal_id > 0 && count($events) > 1 && !$events[1]['id'] &&
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$events[0]['recur_type'] != MCAL_RECUR_NONE)
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{
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calendar_groupdav::fix_series($events);
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}
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foreach ($events as $event)
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{
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$updated_id = false;
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@ -1408,7 +1418,7 @@ class calendar_ical extends calendar_boupdate
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{
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if (is_a($component, 'Horde_iCalendar_vevent'))
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{
|
||||
if ($event = $this->vevent2egw($component, $version, $this->supportedFields, $cal_id))
|
||||
if (($event = $this->vevent2egw($component, $version, $this->supportedFields, $cal_id)))
|
||||
{
|
||||
//common adjustments
|
||||
if ($this->productManufacturer == '' && $this->productName == ''
|
||||
@ -1444,23 +1454,12 @@ class calendar_ical extends calendar_boupdate
|
||||
date_default_timezone_set($GLOBALS['egw_info']['server']['server_timezone']);
|
||||
}
|
||||
|
||||
// decide what to return
|
||||
if (count($events) == 1)
|
||||
{
|
||||
$event = array_shift($events);
|
||||
if ($cal_id > 0) $event['id'] = $cal_id;
|
||||
if (!is_null($etag)) $event['etag'] = $etag;
|
||||
if ($recur_date) $event['recurrence'] = $recur_date;
|
||||
// if cal_id, etag or recur_date is given, use/set it for 1. event
|
||||
if ($cal_id > 0) $events[0]['id'] = $cal_id;
|
||||
if (!is_null($etag)) $events[0]['etag'] = $etag;
|
||||
if ($recur_date) $events[0]['recurrence'] = $recur_date;
|
||||
|
||||
return array($event);
|
||||
}
|
||||
elseif (count($events) == 0 || $cal_id > 0 || !is_null($etag) || $recur_date)
|
||||
{
|
||||
// no events to return
|
||||
// or not allowed N:1 relation with params just meant for a single event
|
||||
return false;
|
||||
}
|
||||
else return $events;
|
||||
return $events;
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@ -238,6 +238,26 @@ class calendar_so
|
||||
//echo "<p>socal::read(".print_r($ids,true).")=<pre>".print_r($events,true)."</pre>\n";
|
||||
return $events;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get maximum modification time of participant data of given event(s)
|
||||
*
|
||||
* This includes ALL recurences of an event series
|
||||
*
|
||||
* @param int|array $ids one or multiple cal_id's
|
||||
* @return int|array (array of) modification timestamp(s)
|
||||
*/
|
||||
function max_user_modified($ids)
|
||||
{
|
||||
foreach($this->db->select($this->user_table,'cal_id,MAX(cal_user_modified) AS user_etag',array(
|
||||
'cal_id' => $ids,
|
||||
),__LINE__,__FILE__,false,'GROUP BY cal_id','calendar') as $row)
|
||||
{
|
||||
$etags[$row['cal_id']] = $this->db->from_timestamp($row['user_etag']);
|
||||
}
|
||||
//echo "<p>".__METHOD__.'('.array2string($ids).') = '.array2string($etags)."</p>\n";
|
||||
return is_array($ids) ? $etags : $etags[$ids];
|
||||
}
|
||||
|
||||
/**
|
||||
* generate SQL to filter after a given category (evtl. incl. subcategories)
|
||||
@ -300,10 +320,6 @@ class calendar_so
|
||||
$cols = !is_null($_cols) ? $_cols : "$this->repeats_table.*,$this->cal_table.*,cal_start,cal_end,cal_recur_date";
|
||||
|
||||
$where = array();
|
||||
if (!empty($sql_filter) && is_string($sql_filter))
|
||||
{
|
||||
$where[] = $sql_filter;
|
||||
}
|
||||
if (is_array($query))
|
||||
{
|
||||
$where = $query;
|
||||
@ -316,6 +332,10 @@ class calendar_so
|
||||
}
|
||||
$where[] = '('.implode(' OR ',$to_or).')';
|
||||
}
|
||||
if (!empty($sql_filter) && is_string($sql_filter))
|
||||
{
|
||||
$where[] = $sql_filter;
|
||||
}
|
||||
if ($users)
|
||||
{
|
||||
$users_by_type = array();
|
||||
@ -371,7 +391,7 @@ class calendar_so
|
||||
if ($start) $where[] = (int)$start.' < cal_end';
|
||||
if ($end) $where[] = 'cal_start < '.(int)$end;
|
||||
|
||||
if (!preg_match('/^[a-z_ ,]+$/i',$order)) $order = 'cal_start'; // gard against SQL injunktion
|
||||
if (!preg_match('/^[a-z_ ,]+$/i',$order)) $order = 'cal_start'; // gard against SQL injection
|
||||
|
||||
if ($this->db->capabilities['distinct_on_text'] && $this->db->capabilities['union'])
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user