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340 lines
10 KiB
PHP
340 lines
10 KiB
PHP
<?php
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/**
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* EGroupware: ActiveSync access: Calendar plugin
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*
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* @link http://www.egroupware.org
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* @package calendar
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* @subpackage activesync
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* @author Ralf Becker <rb@stylite.de>
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* @author Klaus Leithoff <kl@stylite.de>
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* @author Philip Herbert <philip@knauber.de>
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @version $Id$
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*/
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/**
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* Calendar activesync plugin
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*
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* Plugin creates a device specific file to map alphanumeric folder names to nummeric id's.
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*/
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class calendar_activesync implements activesync_plugin_read
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{
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/**
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* var BackendEGW
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*/
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private $backend;
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/**
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* Instance of calendar_bo
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*
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* @var calendar_boupdate
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*/
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private $calendar;
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/**
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* Integer id of current mail account / connection
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*
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* @var int
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*/
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private $account;
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/**
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* Constructor
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*
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* @param BackendEGW $backend
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*/
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public function __construct(BackendEGW $backend)
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{
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$this->backend = $backend;
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}
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/**
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* This function is analogous to GetMessageList.
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*
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* @ToDo implement preference, include own private calendar
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*/
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public function GetFolderList()
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{
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if (!isset($this->calendar)) $this->calendar = new calendar_boupdate();
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foreach ($this->calendar->list_cals() as $label => $entry)
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{
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$folderlist[] = $f = array(
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'id' => $this->backend->createID('calendar',$entry['grantor']),
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'mod' => $GLOBALS['egw']->accounts->id2name($entry['grantor'],'account_fullname'),
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'parent'=> '0',
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);
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};
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//error_log(__METHOD__."() returning ".array2string($folderlist));
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return $folderlist;
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}
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/**
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* Get Information about a folder
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*
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* @param string $id
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* @return SyncFolder|boolean false on error
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*/
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public function GetFolder($id)
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{
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$this->backend->splitID($id, $type, $owner);
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$folderObj = new SyncFolder();
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$folderObj->serverid = $id;
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$folderObj->parentid = '0';
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$folderObj->displayname = $GLOBALS['egw']->accounts->id2name($owner,'account_fullname');
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if ($owner == $GLOBALS['egw_info']['user']['account_id'])
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{
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$folderObj->type = SYNC_FOLDER_TYPE_APPOINTMENT;
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}
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else
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{
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$folderObj->type = SYNC_FOLDER_TYPE_USER_APPOINTMENT;
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}
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//error_log(__METHOD__."('$id') folderObj=".array2string($folderObj));
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return $folderObj;
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}
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/**
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* Return folder stats. This means you must return an associative array with the
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* following properties:
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*
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* "id" => The server ID that will be used to identify the folder. It must be unique, and not too long
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* How long exactly is not known, but try keeping it under 20 chars or so. It must be a string.
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* "parent" => The server ID of the parent of the folder. Same restrictions as 'id' apply.
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* "mod" => This is the modification signature. It is any arbitrary string which is constant as long as
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* the folder has not changed. In practice this means that 'mod' can be equal to the folder name
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* as this is the only thing that ever changes in folders. (the type is normally constant)
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*
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* @return array with values for keys 'id', 'mod' and 'parent'
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*/
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public function StatFolder($id)
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{
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$folder = $this->GetFolder($id);
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$this->backend->splitID($id, $type, $owner);
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$stat = array(
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'id' => $id,
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'mod' => $GLOBALS['egw']->accounts->id2name($owner,'account_fullname'),
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'parent' => '0',
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);
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return $stat;
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}
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/**
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* Should return a list (array) of messages, each entry being an associative array
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* with the same entries as StatMessage(). This function should return stable information; ie
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* if nothing has changed, the items in the array must be exactly the same. The order of
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* the items within the array is not important though.
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*
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* The cutoffdate is a date in the past, representing the date since which items should be shown.
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* This cutoffdate is determined by the user's setting of getting 'Last 3 days' of e-mail, etc. If
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* you ignore the cutoffdate, the user will not be able to select their own cutoffdate, but all
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* will work OK apart from that.
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*
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* @param string $id folder id
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* @param int $cutoffdate=null
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* @return array
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*/
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function GetMessageList($id, $cutoffdate=NULL)
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{
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if (!isset($this->calendar)) $this->calendar = new calendar_boupdate();
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debugLog (__METHOD__."('$id',$cutoffdate)");
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$this->backend->splitID($id,$type,$user);
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if (!$cutoffdate) $cutoffdate = $this->bo->now - 100*24*3600; // default three month back -30 breaks all sync recurrences
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// todo return only etag relevant information
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$filter = array(
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'users' => $user,
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'start' => $cutoffdate, // default one month back -30 breaks all sync recurrences
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'enum_recuring' => false,
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'daywise' => false,
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'date_format' => 'server',
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'filter' => 'default', // not rejected
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);
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$messagelist = array();
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foreach ($this->calendar->search($filter) as $k => $event)
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{
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$messagelist[] = $this->StatMessage($id, $event);
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}
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return $messagelist;
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}
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/**
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* Get specified item from specified folder.
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*
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* @param string $folderid
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* @param string $id
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* @param int $truncsize
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* @param int $bodypreference
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* @param bool $mimesupport
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* @return $messageobject|boolean false on error
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*/
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public function GetMessage($folderid, $id, $truncsize, $bodypreference=false, $mimesupport = 0)
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{
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if (!isset($this->calendar)) $this->calendar = new calendar_boupdate();
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debugLog (__METHOD__."('$folderid', $id, truncsize=$truncsize, bodyprefence=$bodypreference, mimesupport=$mimesupport)");
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$this->backend->splitID($folderid, $type, $account);
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if ($type != 'calendar' || !($event = $this->calendar->read($id,null,'ts',false,$account)))
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{
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return false;
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}
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$message = new SyncAppointment();
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// copying timestamps
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foreach(array(
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'start' => 'starttime',
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'end' => 'endtime',
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'created' => 'dtstamp',
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'modified' => 'dtstamp',
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) as $key => $attr)
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{
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if (!empty($event[$key])) $message->$attr = $event[$key];
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}
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// copying strings
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foreach(array(
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'title' => 'subject',
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'uid' => 'uid',
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'location' => 'location',
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) as $key => $attr)
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{
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if (!empty($event[$key])) $message->$attr = $event[$key];
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}
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$message->organizername = $GLOBALS['egw']->accounts->id2name($event['owner'],'account_fullname');
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$message->organizeremail = $GLOBALS['egw']->accounts->id2name($event['owner'],'account_email');
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$message->location;
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$message->sensitivity = $event['public'] ? 0 : 2; // 0=normal, 1=personal, 2=private, 3=confidential
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$message->alldayevent = (int)$this->calendar->isWholeDay($event);
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$message->attendees = array();
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foreach($event['participants'] as $uid => $status)
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{
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static $status2as = array(
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'u' => 0, // unknown
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't' => 2, // tentative
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'a' => 3, // accepted
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'r' => 4, // decline
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// 5 = not responded
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);
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static $role2as = array(
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'REQ-PARTICIPANT' => 1, // required
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'CHAIR' => 1, // required
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'OPT-PARTICIPANT' => 2, // optional
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'NON-PARTICIPANT' => 2,
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// 3 = ressource
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);
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calendar_so::split_status($status, $quantity, $role);
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$attendee = new SyncAttendee();
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if (is_numeric($uid))
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{
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$attendee->name = $GLOBALS['egw']->accounts->id2name($uid,'account_fullname');
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$attendee->email = $GLOBALS['egw']->accounts->id2name($uid,'account_email');
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$attendee->status = (int)$status2as[$status];
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$attendee->type = (int)$role2as[$role];
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}
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$message->attendees[] = $attendee;
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}
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$message->categories = array();
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foreach($event['catgory'] ? explode(',',$event['category']) : array() as $cat_id)
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{
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$message->categories[] = categories::id2name($cat_id);
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}
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//$message->recurrence; // SYNC RECURRENCE;
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//$message->busystatus;
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//$message->reminder;
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//$message->meetingstatus;
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//$message->exceptions; // SYNC APPOINTMENTS;
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//$message->deleted;
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//$message->exceptionstarttime;
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/*
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if (isset($protocolversion) && $protocolversion < 12.0) {
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$message->body;
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$message->bodytruncated;
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$message->rtf;
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}
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if(isset($protocolversion) && $protocolversion >= 12.0) {
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$message->airsyncbasebody; // SYNC SyncAirSyncBaseBody
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}
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*/
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return $message;
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}
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/**
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* StatMessage should return message stats, analogous to the folder stats (StatFolder). Entries are:
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* 'id' => Server unique identifier for the message. Again, try to keep this short (under 20 chars)
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* 'flags' => simply '0' for unread, '1' for read
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* 'mod' => modification signature. As soon as this signature changes, the item is assumed to be completely
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* changed, and will be sent to the PDA as a whole. Normally you can use something like the modification
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* time for this field, which will change as soon as the contents have changed.
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*
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* @param string $folderid
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* @param int|array $id event id or array
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* @return array
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*/
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public function StatMessage($folderid, $id)
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{
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if (!isset($this->calendar)) $this->calendar = new calendar_boupdate();
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if (!($etag = $this->calendar->get_etag($id)))
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{
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$stat = false;
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// error_log why access is denied (should nevery happen for everything returned by calendar_bo::search)
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$backup = $this->calendar->debug;
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$this->calendar->debug = 2;
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$this->check_perms(EGW_ACL_FREEBUSY, $id, 0, 'server');
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$this->calendar->debug = $backup;
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}
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else
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{
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list(,,$etag) = explode(':',$etag);
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$stat = array(
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'mod' => $etag,
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'id' => is_array($id) ? $id['id'] : $id,
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'flags' => 1,
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);
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}
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debugLog (__METHOD__."('$folderid',".array2string($id).") returning ".array2string($stat));
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return $stat;
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}
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/**
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* Return a changes array
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*
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* if changes occurr default diff engine computes the actual changes
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*
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* @param string $folderid
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* @param string &$syncstate on call old syncstate, on return new syncstate
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* @return array|boolean false if $folderid not found, array() if no changes or array(array("type" => "fakeChange"))
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*/
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function AlterPingChanges($folderid, &$syncstate)
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{
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$this->backend->splitID($folderid, $type, $owner);
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if ($type != 'calendar') return false;
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if (!isset($this->calendar)) $this->calendar = new calendar_boupdate();
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$ctag = $this->calendar->get_ctag($owner);
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$changes = array(); // no change
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$syncstate_was = $syncstate;
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if ($ctag !== $syncstate)
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{
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$syncstate = $ctag;
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$changes = array(array('type' => 'fakeChange'));
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}
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//error_log(__METHOD__."('$folderid','$syncstate_was') syncstate='$syncstate' returning ".array2string($changes));
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return $changes;
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}
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}
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