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* Calendar/CalDAV/eSync: fixed etag generation to NOT query maximum user-modification date for each entry, fixed etag and ctag for eSync to only use recurance master, as ActiveSync event does not contain extra participant data for exceptions (virtual and real)

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This commit is contained in:
Ralf Becker 2012-03-12 08:20:36 +00:00
parent 6c4a1e0b72
commit 21c49b0b26
4 changed files with 64 additions and 38 deletions
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6
calendar/inc/class.calendar_activesync.inc.php
View File

@ -1055,7 +1055,7 @@ return array(); // temporary disabling meeting requests from calendar
$attendee->email = $info['email'];
if ($uid[0] == 'r') $attendee->type = 3; // 3 = resource
}
// email must NOT be empy, but MAY be an arbitrary text
// email must NOT be empty, but MAY be an arbitrary text
if (empty($attendee->email)) $attendee->email = 'noreply-'.$uid.'-uid@egroupware.org';
$message->attendees[] = $attendee;
@ -1196,7 +1196,7 @@ return array(); // temporary disabling meeting requests from calendar
{
if (!isset($this->calendar)) $this->calendar = new calendar_boupdate();
if (!($etag = $this->calendar->get_etag($id)))
if (!($etag = $this->calendar->get_etag($id, $nul, true, true))) // last true: $only_master=true
{
$stat = false;
// error_log why access is denied (should never happen for everything returned by calendar_bo::search)
@ -1236,7 +1236,7 @@ return array(); // temporary disabling meeting requests from calendar
if ($type != 'calendar') return false;
if (!isset($this->calendar)) $this->calendar = new calendar_boupdate();
$ctag = $this->calendar->get_ctag($owner);
$ctag = $this->calendar->get_ctag($owner,'owner',true); // true only consider recurrence master
// workaround for syncstate = 0 when calendar is empty causes synctate to not return 0 but array resulting in foldersync loop
if ($ctag == 0) $ctag = 1;
$changes = array(); // no change

29
calendar/inc/class.calendar_bo.inc.php
View File

@ -407,6 +407,7 @@ class calendar_bo
* cols string|array columns to select, if set an iterator will be returned
* append string to append to the query, eg. GROUP BY
* cfs array if set, query given custom fields or all for empty array, none are returned, if not set (default)
* master_only boolean default false, true only take into account participants/status from master (for AS)
* @param string $sql_filter=null sql to be and'ed into query (fully quoted), default none
* @return iterator|array|boolean array of events or array with YYYYMMDD strings / array of events pairs (depending on $daywise param)
* or false if there are no read-grants from _any_ of the requested users or iterator/recordset if cols are given
@ -621,6 +622,8 @@ class calendar_bo
*/
function clear_private_infos(&$event,$allowed_participants = array())
{
if (!is_array($event['participants'])) error_log(__METHOD__.'('.array2string($event).', '.array2string($allowed_participants).') NO PARTICIPANTS '.function_backtrace());
$event = array(
'id' => $event['id'],
'start' => $event['start'],
@ -1917,9 +1920,11 @@ class calendar_bo
* @param array|int|string $event array with event or cal_id, or cal_id:recur_date for virtual exceptions
* @param string &$schedule_tag=null on return schedule-tag (egw_cal.cal_id:egw_cal.cal_etag, no participant modifications!)
* @param boolean $client_share_uid_excpetions Does client understand exceptions to be included in VCALENDAR component of series master sharing its UID
* @param boolean $master_only=false only take into account recurrance masters
* (for ActiveSync which does not support different participants/status on recurrences/exceptions!)
* @return string|boolean string with etag or false
*/
function get_etag($entry, &$schedule_tag=null, $client_share_uid_excpetions=true)
function get_etag($entry, &$schedule_tag=null, $client_share_uid_excpetions=true,$master_only=false)
{
if (!is_array($entry))
{
@ -1936,7 +1941,7 @@ class calendar_bo
}
else
{
$modified = max($this->so->max_user_modified($entry['id']), $entry['modified']);
$modified = max($this->so->max_user_modified($entry['id'],false,$master_only), $entry['modified']);
}
$etag .= ':' . $modified;
// include exception etags into our own etag, if exceptions are included
@ -1956,9 +1961,17 @@ class calendar_bo
{
if ($recurrence['reference'] && $recurrence['id'] != $entry['id']) // ignore series master
{
$etag .= ':'.$this->get_etag($recurrence, $full_etag);
$exception_etag = $this->get_etag($recurrence, $nul);
// if $master_only, only add cal_etag, not max. user modification date
if ($master_only) list(,$exception_etag) = explode(':',$exception_etag);
$exception_etags .= ':'.$this->get_etag($recurrence, $nul);
}
}
if ($exception_etags)
{
$etag .= ':'.md5($exception_etags); // limit size, as there can be many exceptions
}
}
//error_log(__METHOD__ . "($entry[id],$client_share_uid_excpetions) entry=".array2string($entry)." --> etag=$etag");
return $etag;
@ -1968,17 +1981,17 @@ class calendar_bo
* Query ctag for calendar
*
* @param int|array $user integer user-id or array of user-id's to use, defaults to the current user
* @param $filter='owner'
* @return string $filter='owner' all (not rejected), accepted, unknown, tentative, rejected or hideprivate
* @todo use MAX(modified) to query everything in one sql query, currently we do one query per event (more then the search)
* @param string $filter='owner' all (not rejected), accepted, unknown, tentative, rejected or hideprivate
* @param boolean $master_only=false only check recurance master (egw_cal_user.recur_date=0)
* @return integer
*/
public function get_ctag($user,$filter='owner')
public function get_ctag($user, $filter='owner', $master_only=false)
{
if ($this->debug > 1) $startime = microtime(true);
// resolve users to add memberships for users and members for groups
$users = $this->resolve_users($user);
$ctag = $users ? $this->so->get_ctag($users, $filter == 'owner') : 0; // no rights, return 0 as ctag (otherwise we get SQL error!)
$ctag = $users ? $this->so->get_ctag($users, $filter == 'owner', $master_only) : 0; // no rights, return 0 as ctag (otherwise we get SQL error!)
if ($this->debug > 1) error_log(__METHOD__. "($user, '$filter') = $ctag = ".date('Y-m-d H:i:s',$ctag)." took ".(microtime(true)-$startime)." secs");
return $ctag;

15
calendar/inc/class.calendar_groupdav.inc.php
View File

@ -225,23 +225,8 @@ class calendar_groupdav extends groupdav_handler
$events =& $this->bo->search($filter);
if ($events)
{
// get all max user modified times at once
foreach($events as $k => $event)
{
if ($this->client_shared_uid_exceptions && $event['reference'])
{
throw new egw_exception_assertion_failed(__METHOD__."() event=".array2string($event));
// this exception will be handled with the series master
unset($events[$k]);
continue;
}
$ids[] = $event['id'];
}
$max_user_modified = $this->bo->so->max_user_modified($ids);
foreach($events as $event)
{
$event['max_user_modified'] = $max_user_modified[$event['id']];
$etag = $this->get_etag($event, $schedule_tag);
//header('X-EGROUPWARE-EVENT-'.$event['id'].': '.$event['title'].': '.date('Y-m-d H:i:s',$event['start']).' - '.date('Y-m-d H:i:s',$event['end']));
$props = array(

52
calendar/inc/class.calendar_so.inc.php
View File

@ -293,18 +293,21 @@ class calendar_so
* This includes ALL recurences of an event series
*
* @param int|array $ids one or multiple cal_id's
* @param booelan $return_maximum=false if true return only the maximum, even for multiple ids
* @param boolean $return_maximum=false if true return only the maximum, even for multiple ids
* @param boolean $master_only=false only check recurance master (egw_cal_user.recur_date=0)
* @return int|array (array of) modification timestamp(s)
*/
function max_user_modified($ids, $return_maximum=false)
function max_user_modified($ids, $return_maximum=false, $master_only=false)
{
if (!is_array($ids)) $return_maximum = true;
$where = array('cal_id' => $ids);
if ($master_only) $where['recur_date'] = 0;
if ($return_maximum)
{
if (($etags = $this->db->select($this->user_table,'MAX(cal_user_modified)',array(
'cal_id' => $ids,
),__LINE__,__FILE__,false,'','calendar')->fetchColumn()))
if (($etags = $this->db->select($this->user_table,'MAX(cal_user_modified)',$where,
__LINE__,__FILE__,false,'','calendar')->fetchColumn()))
{
$etags = $this->db->from_timestamp($etags);
}
@ -312,15 +315,13 @@ class calendar_so
else
{
$etags = array();
foreach($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 $row)
foreach($this->db->select($this->user_table,'cal_id,MAX(cal_user_modified) AS user_etag',$where,
__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($ids).','.array($return_maximum).') = '.array2string($etags)."</p>\n";
//error_log(__METHOD__.'('.array2string($ids).','.array2string($return_maximum).') = '.array2string($etags));
//error_log(__METHOD__.'('.array2string($ids).', '.array2string($return_maximum).', '.array2string($master_only).') = '.array2string($etags).' '.function_backtrace());
return $etags;
}
@ -331,14 +332,19 @@ class calendar_so
*
* @param int|array $users one or mulitple calendar users
* @param booelan $owner_too=false if true return also events owned by given users
* @param boolean $master_only=false only check recurance master (egw_cal_user.recur_date=0)
* @return int maximum modification timestamp
*/
function get_ctag($users, $owner_too=false)
function get_ctag($users, $owner_too=false,$master_only=false)
{
$where = array(
'cal_user_type' => 'u',
'cal_user_id' => $users,
);
if ($master_only)
{
$where['cal_recur_date'] = 0;
}
if ($owner_too)
{
// owner can only by users, no groups
@ -406,6 +412,7 @@ class calendar_so
* @param string $params['append'] SQL to append to the query before $order, eg. for a GROUP BY clause
* @param array $params['cfs'] custom fields to query, null = none, array() = all, or array with cfs names
* @param array $params['users'] raw parameter as passed to calendar_bo::search() no memberships resolved!
* @param boolean $params['master_only']=false, true only take into account participants/status from master (for AS)
* @param int $remove_rejected_by_user=null add join to remove entry, if given user has rejected it
* @return array of cal_ids, or false if error in the parameters
*
@ -702,10 +709,13 @@ class calendar_so
//_debug_array($events);
if (count($ids))
{
$ids = array_unique($ids);
$need_max_user_modified = array();
// now ready all users with the given cal_id AND (cal_recur_date=0 or the fitting recur-date)
// This will always read the first entry of each recuring event too, we eliminate it later
$recur_dates[] = 0;
$utcal_id_view = " (SELECT * FROM ".$this->user_table." WHERE cal_id IN (".implode(',',array_unique($ids)).") AND cal_status!='X') utcalid ";
$utcal_id_view = " (SELECT * FROM ".$this->user_table." WHERE cal_id IN (".implode(',',$ids).") AND cal_status!='X') utcalid ";
//$utrecurdate_view = " (select * from ".$this->user_table." where cal_recur_date in (".implode(',',array_unique($recur_dates)).")) utrecurdates ";
foreach($this->db->select($utcal_id_view,'*',array(
//'cal_id' => array_unique($ids),
@ -734,6 +744,24 @@ class calendar_so
// set data, if recurrence is requested
if (isset($events[$id])) $events[$id]['participants'][$uid] = $status;
// fill max_user_modified:
if (!$params['master_only'] && $events[$id]['recur_type'])
{
$need_max_user_modified[$id] = $id;
}
elseif (isset($events[$id]) && ($modified = $this->db->from_timestamp($row['cal_user_modified'])) > $events[$id]['max_user_modified'])
{
$events[$id]['max_user_modified'] = $modified;
}
}
// max_user_modified for recurring events has to include all recurrences, above code only querys $recur_date!
if (!$params['enum_recuring'] && $need_max_user_modified)
{
foreach($this->max_user_modified($need_max_user_modified) as $id => $modified)
{
$events[$id]['max_user_modified'] = $modified;
}
}
//custom fields are not shown in the regular views, so we only query them, if explicitly required
if (!is_null($params['cfs']))