/**
* While we can construct our SQL to apply some filters in the query, other filters
* need to be checked against the retrieved record. This is for handling those ones.
*
* @param array $filter An array of XMLElement which is the filter definition
* @param string $item The database row retrieved for this calendar item
*
* @return boolean True if the check succeeded, false otherwise.
*/
function apply_filter($filters, $item)
{
global $session, $c, $request;
if (count($filters) == 0) {
return true;
}
dbg_error_log("cardquery", "Applying filter for item '%s'", $item->dav_name);
$vcard = new vComponent($item->caldav_data);
return $vcard->TestFilter($filters);
}
/**
* Get a TZID string from this VEVENT/VTODO/... component if we can
* @param vComponent $comp
* @return The TZID value we found, or null
*/
private static function GetTZID(vComponent $comp)
{
$p = $comp->GetProperty('DTSTART');
if (!isset($p) && $comp->GetType() == 'VTODO') {
$p = $comp->GetProperty('DUE');
}
if (!isset($p)) {
return null;
}
return $p->GetParameterValue('TZID');
}
static function getInstance($name)
{
$qry = new AwlQuery('SELECT * FROM timezones WHERE tzid = ? ORDER BY active DESC', $name);
if ($qry->Exec('VTimezone', __LINE__, __FILE__) && $qry->rows() > 0 && ($row = $qry->Fetch())) {
$vtz = new vComponent($row->vtimezone);
if ($vtz->GetType() == 'VTIMEZONE') {
return $vtz;
}
$tmp = $vtz->GetComponents('VTIMEZONE');
if (count($tmp) < 1 || $tmp[0]->GetType() != 'VTIMEZONE') {
return null;
}
$vtz = $tmp[0];
return $vtz;
}
return null;
}
function get_freebusy($path_match, $range_start, $range_end, $bin_privs = null)
{
global $request, $c;
$debugging = false;
// if ( $debugging ) {
// printf( "Path: %s\n", $path_match );
// print_r( $range_start );
// print_r( $range_end );
// }
if (!isset($bin_privs)) {
$bin_privs = $request->Privileges();
}
if (!isset($range_start) || !isset($range_end)) {
$request->DoResponse(400, 'All valid freebusy requests MUST contain a time-range filter');
}
$params = array(':path_match' => $path_match, ':start' => $range_start->UTC(), ':end' => $range_end->UTC());
$where = ' WHERE caldav_data.dav_name ~ :path_match ';
$where .= 'AND rrule_event_overlaps( dtstart, dtend, rrule, :start, :end) ';
$where .= "AND caldav_data.caldav_type IN ( 'VEVENT', 'VTODO' ) ";
$where .= "AND (calendar_item.transp != 'TRANSPARENT' OR calendar_item.transp IS NULL) ";
$where .= "AND (calendar_item.status != 'CANCELLED' OR calendar_item.status IS NULL) ";
$where .= "AND collection.is_calendar AND collection.schedule_transp = 'opaque' ";
if ($bin_privs != privilege_to_bits('all')) {
$where .= "AND (calendar_item.class != 'PRIVATE' OR calendar_item.class IS NULL) ";
}
$fbtimes = array();
$sql = 'SELECT caldav_data.caldav_data, calendar_item.rrule, calendar_item.transp, calendar_item.status, ';
$sql .= "to_char(calendar_item.dtstart at time zone 'GMT'," . AWLDatabase::SqlUTCFormat . ') AS start, ';
$sql .= "to_char(calendar_item.dtend at time zone 'GMT'," . AWLDatabase::SqlUTCFormat . ') AS finish, ';
$sql .= "calendar_item.class, calendar_item.dav_id ";
$sql .= 'FROM caldav_data INNER JOIN calendar_item USING(dav_id,user_no,dav_name,collection_id) ';
$sql .= 'INNER JOIN collection USING(collection_id)';
$sql .= $where;
if (isset($c->strict_result_ordering) && $c->strict_result_ordering) {
$sql .= ' ORDER BY dav_id';
}
$qry = new AwlQuery($sql, $params);
if ($qry->Exec("REPORT", __LINE__, __FILE__) && $qry->rows() > 0) {
while ($calendar_object = $qry->Fetch()) {
$extra = '';
if ($calendar_object->status == 'TENTATIVE') {
$extra = ';BUSY-TENTATIVE';
} else {
if (isset($c->_workaround_client_freebusy_bug) && $c->_workaround_client_freebusy_bug) {
$extra = ';BUSY';
}
}
// if ( $debugging ) {
// $extra = ';'.$calendar_object->dav_id;
// }
// dbg_error_log( "REPORT", " FreeBusy: Not transparent, tentative or cancelled: %s, %s, %s", $calendar_object->start, $calendar_object->finish, $calendar_object->class );
$ics = new vComponent($calendar_object->caldav_data);
$expanded = expand_event_instances($ics, $range_start, $range_end);
$expansion = $expanded->GetComponents(array('VEVENT' => true, 'VTODO' => true, 'VJOURNAL' => true));
// if ( $debugging ) echo "=================== $calendar_object->dav_id ========================\n";
$dtstart_type = 'DTSTART';
foreach ($expansion as $k => $v) {
// if ( $debugging ) print $k."\n".$v->Render();
$start_date = $v->GetProperty($dtstart_type);
if (!isset($start_date) && $v->GetType() != 'VTODO') {
$dtstart_type = 'DUE';
$start_date = $v->GetProperty($dtstart_type);
}
$start_date = new RepeatRuleDateTime($start_date);
$duration = $v->GetProperty('DURATION');
$duration = !isset($duration) ? 'P1D' : $duration->Value();
$end_date = clone $start_date;
$end_date->modify($duration);
if ($end_date == $start_date || $end_date < $range_start || $start_date > $range_end) {
// if ( $debugging )
// echo "-----------------------------------------------------\n";
continue;
}
// if ( $debugging )
// echo "+++++++++++++++++++++++++++++++++++++++++++++++++++++\n";
$thisfb = $start_date->UTC() . '/' . $end_date->UTC() . $extra;
array_push($fbtimes, $thisfb);
}
}
}
$freebusy = new vComponent();
$freebusy->setType('VFREEBUSY');
$freebusy->AddProperty('DTSTAMP', date('Ymd\\THis\\Z'));
$freebusy->AddProperty('DTSTART', $range_start->UTC());
$freebusy->AddProperty('DTEND', $range_end->UTC());
sort($fbtimes);
foreach ($fbtimes as $k => $v) {
$text = explode(';', $v, 2);
$freebusy->AddProperty('FREEBUSY', $text[0], isset($text[1]) ? array('FBTYPE' => $text[1]) : null);
}
return $freebusy;
}
/**
* Given a dav_id and an original vCalendar, pull out each of the VALARMs
* and write the values into the calendar_alarm table.
*
* @param int $dav_id The dav_id of the caldav_data we're processing
* @param vComponent The VEVENT or VTODO containing the VALARM
* @return null
*/
function write_alarms($dav_id, vComponent $ical)
{
$qry = new AwlQuery('DELETE FROM calendar_alarm WHERE dav_id = ' . $dav_id);
$qry->Exec('PUT', __LINE__, __FILE__);
$alarms = $ical->GetComponents('VALARM');
if (count($alarms) < 1) {
return;
}
$qry->SetSql('INSERT INTO calendar_alarm ( dav_id, action, trigger, summary, description, component, next_trigger )
VALUES( ' . $dav_id . ', :action, :trigger, :summary, :description, :component,
:related::timestamp with time zone + :related_trigger::interval )');
$qry->Prepare();
foreach ($alarms as $v) {
$trigger = array_merge($v->GetProperties('TRIGGER'));
if ($trigger == null) {
continue;
}
// Bogus data.
$trigger = $trigger[0];
$related = null;
$related_trigger = '0M';
$trigger_type = $trigger->GetParameterValue('VALUE');
if (!isset($trigger_type) || $trigger_type == 'DURATION') {
switch ($trigger->GetParameterValue('RELATED')) {
case 'DTEND':
$related = $ical->GetProperty('DTEND');
break;
case 'DUE':
$related = $ical->GetProperty('DUE');
break;
default:
$related = $ical->GetProperty('DTSTART');
}
$duration = $trigger->Value();
if (!preg_match('{^-?P(:?\\d+W)?(:?\\d+D)?(:?T(:?\\d+H)?(:?\\d+M)?(:?\\d+S)?)?$}', $duration)) {
continue;
}
$minus = substr($duration, 0, 1) == '-';
$related_trigger = trim(preg_replace('#[PT-]#', ' ', $duration));
if ($minus) {
$related_trigger = preg_replace('{(\\d+[WDHMS])}', '-$1 ', $related_trigger);
} else {
$related_trigger = preg_replace('{(\\d+[WDHMS])}', '$1 ', $related_trigger);
}
} else {
if ($trigger_type == 'DATE-TIME') {
$related = $trigger;
} else {
if (false === strtotime($trigger->Value())) {
continue;
}
// Invalid date.
$related = $trigger;
}
}
$related_date = new RepeatRuleDateTime($related);
$qry->Bind(':action', $v->GetPValue('ACTION'));
$qry->Bind(':trigger', $trigger->Render());
$qry->Bind(':summary', $v->GetPValue('SUMMARY'));
$qry->Bind(':description', $v->GetPValue('DESCRIPTION'));
$qry->Bind(':component', $v->Render());
$qry->Bind(':related', $related_date->UTC());
$qry->Bind(':related_trigger', $related_trigger);
$qry->Exec('PUT', __LINE__, __FILE__);
}
}
/**
* Return a date range for this component.
* @param vComponent $comp
* @throws Exception (1) When DTSTART is not present but the RFC says MUST and (2) when we get an unsupported component
* @return RepeatRuleDateRange
*/
function getComponentRange(vComponent $comp)
{
$dtstart_prop = $comp->GetProperty('DTSTART');
$duration_prop = $comp->GetProperty('DURATION');
if (isset($duration_prop)) {
if (!isset($dtstart_prop)) {
throw new Exception('Invalid ' . $comp->GetType() . ' containing DURATION without DTSTART', 0);
}
$dtstart = new RepeatRuleDateTime($dtstart_prop);
$dtend = clone $dtstart;
$dtend->modify(new Rfc5545Duration($duration_prop->Value()));
} else {
$completed_prop = null;
switch ($comp->GetType()) {
case 'VEVENT':
if (!isset($dtstart_prop)) {
throw new Exception('Invalid VEVENT without DTSTART', 0);
}
$dtend_prop = $comp->GetProperty('DTEND');
break;
case 'VTODO':
$completed_prop = $comp->GetProperty('COMPLETED');
$dtend_prop = $comp->GetProperty('DUE');
break;
case 'VJOURNAL':
if (!isset($dtstart_prop)) {
$dtstart_prop = $comp->GetProperty('DTSTAMP');
}
$dtend_prop = $dtstart_prop;
default:
throw new Exception('getComponentRange cannot handle "' . $comp->GetType() . '" components', 0);
}
if (isset($dtstart_prop)) {
$dtstart = new RepeatRuleDateTime($dtstart_prop);
} else {
$dtstart = null;
}
if (isset($dtend_prop)) {
$dtend = new RepeatRuleDateTime($dtend_prop);
} else {
$dtend = null;
}
if (isset($completed_prop)) {
$completed = new RepeatRuleDateTime($completed_prop);
if (!isset($dtstart) || isset($dtstart) && $completed < $dtstart) {
$dtstart = $completed;
}
if (!isset($dtend) || isset($dtend) && $completed > $dtend) {
$dtend = $completed;
}
}
}
return new RepeatRuleDateRange($dtstart, $dtend);
}
function caldav_get_feed($request, $collection)
{
global $c, $session;
dbg_error_log("feed", "GET method handler");
$collection->NeedPrivilege(array('DAV::read'));
if (!$collection->Exists()) {
$request->DoResponse(404, translate("Resource Not Found."));
}
if (!$collection->IsCollection() || !$collection->IsCalendar() && !(isset($c->get_includes_subcollections) && $c->get_includes_subcollections)) {
$request->DoResponse(405, translate("Feeds are only supported for calendars at present."));
}
// Try and pull the answer out of a hat
$cache = getCacheInstance();
$cache_ns = 'collection-' . $collection->dav_name();
$cache_key = 'feed' . $session->user_no;
$response = $cache->get($cache_ns, $cache_key);
if ($response !== false) {
return $response;
}
$principal = $collection->GetProperty('principal');
/**
* The CalDAV specification does not define GET on a collection, but typically this is
* used as a .ics download for the whole collection, which is what we do also.
*/
$sql = 'SELECT caldav_data, caldav_type, caldav_data.user_no, caldav_data.dav_name,';
$sql .= ' caldav_data.modified, caldav_data.created, ';
$sql .= ' summary, dtstart, dtend, calendar_item.description ';
$sql .= ' FROM collection INNER JOIN caldav_data USING(collection_id) INNER JOIN calendar_item USING ( dav_id ) WHERE ';
if (isset($c->get_includes_subcollections) && $c->get_includes_subcollections) {
$sql .= ' (collection.dav_name ~ :path_match ';
$sql .= ' OR collection.collection_id IN (SELECT bound_source_id FROM dav_binding WHERE dav_binding.dav_name ~ :path_match)) ';
$params = array(':path_match' => '^' . $request->path);
} else {
$sql .= ' caldav_data.collection_id = :collection_id ';
$params = array(':collection_id' => $collection->resource_id());
}
$sql .= ' ORDER BY caldav_data.created DESC';
$sql .= ' LIMIT ' . (isset($c->feed_item_limit) ? $c->feed_item_limit : 15);
$qry = new AwlQuery($sql, $params);
if (!$qry->Exec("GET", __LINE__, __FILE__)) {
$request->DoResponse(500, translate("Database Error"));
}
/**
* Here we are constructing the feed response for this collection, including
* the timezones that are referred to by the events we have selected.
* Library used: http://framework.zend.com/manual/en/zend.feed.writer.html
*/
require_once 'AtomFeed.php';
$feed = new AtomFeed();
$feed->setTitle('DAViCal Atom Feed: ' . $collection->GetProperty('displayname'));
$url = $c->protocol_server_port . $collection->url();
$url = preg_replace('{/$}', '.ics', $url);
$feed->setLink($url);
$feed->setFeedLink($c->protocol_server_port_script . $request->path, 'atom');
$feed->addAuthor(array('name' => $principal->GetProperty('displayname'), 'email' => $principal->GetProperty('email'), 'uri' => $c->protocol_server_port . $principal->url()));
$feed_description = $collection->GetProperty('description');
if (isset($feed_description) && $feed_description != '') {
$feed->setDescription($feed_description);
}
require_once 'RRule-v2.php';
$need_zones = array();
$timezones = array();
while ($event = $qry->Fetch()) {
if ($event->caldav_type != 'VEVENT' && $event->caldav_type != 'VTODO' && $event->caldav_type != 'VJOURNAL') {
dbg_error_log('feed', 'Skipping peculiar "%s" component in VCALENDAR', $event->caldav_type);
continue;
}
$is_todo = $event->caldav_type == 'VTODO';
$ical = new vComponent($event->caldav_data);
$event_data = $ical->GetComponents('VTIMEZONE', false);
$item = $feed->createEntry();
$item->setId($c->protocol_server_port_script . ConstructURL($event->dav_name));
$dt_created = new RepeatRuleDateTime($event->created);
$item->setDateCreated($dt_created->epoch());
$dt_modified = new RepeatRuleDateTime($event->modified);
$item->setDateModified($dt_modified->epoch());
$summary = $event->summary;
$p_title = $summary != '' ? $summary : translate('No summary');
if ($is_todo) {
$p_title = "TODO: " . $p_title;
}
$item->setTitle($p_title);
$content = "";
$dt_start = new RepeatRuleDateTime($event->dtstart);
if ($dt_start != null) {
$p_time = '<strong>' . translate('Time') . ':</strong> ' . strftime(translate('%F %T'), $dt_start->epoch());
$dt_end = new RepeatRuleDateTime($event->dtend);
if ($dt_end != null) {
$p_time .= ' - ' . ($dt_end->AsDate() == $dt_start->AsDate() ? strftime(translate('%T'), $dt_end->epoch()) : strftime(translate('%F %T'), $dt_end->epoch()));
}
$content .= $p_time;
}
$p_location = $event_data[0]->GetProperty('LOCATION');
if ($p_location != null) {
$content .= '<br />' . '<strong>' . translate('Location') . '</strong>: ' . hyperlink($p_location->Value());
}
$p_attach = $event_data[0]->GetProperty('ATTACH');
if ($p_attach != null) {
$content .= '<br />' . '<strong>' . translate('Attachment') . '</strong>: ' . hyperlink($p_attach->Value());
}
$p_url = $event_data[0]->GetProperty('URL');
if ($p_url != null) {
$content .= '<br />' . '<strong>' . translate('URL') . '</strong>: ' . hyperlink($p_url->Value());
}
$p_cat = $event_data[0]->GetProperty('CATEGORIES');
if ($p_cat != null) {
$content .= '<br />' . '<strong>' . translate('Categories') . '</strong>: ' . $p_cat->Value();
$categories = explode(',', $p_cat->Value());
foreach ($categories as $category) {
$item->addCategory(array('term' => trim($category)));
}
}
$p_description = $event->description;
if ($p_description != '') {
$content .= '<br />' . '<br />' . '<strong>' . translate('Description') . '</strong>:<br />' . nl2br(hyperlink($p_description));
$item->setDescription($p_description);
}
$item->setContent($content);
$feed->addEntry($item);
//break;
}
$last_modified = new RepeatRuleDateTime($collection->GetProperty('modified'));
$feed->setDateModified($last_modified->epoch());
$response = $feed->export('atom');
$cache->set($cache_ns, $cache_key, $response);
return $response;
}
function update_caldav_data($old_data, $dav_id)
{
$vResource = new vComponent($old_data);
//$expanded = expand_event_instances($vResource, $expand_range_start, $expand_range_end);
$event = $vResource->GetComponents("VEVENT")[0];
$attendeeName = "ATTENDEE";
$vResource->ClearProperties($attendeeName);
$davIdArray = array(':dav_id' => $dav_id);
$attendeeQry = new AwlQuery("SELECT params, attendee FROM calendar_attendee WHERE dav_id = :dav_id", $davIdArray);
$attendeeQry->Execute();
while ($arow = $attendeeQry->Fetch()) {
$attendeeParameters = $arow->params;
$attendeeValue = $arow->attendee;
// separe value
$event->AddProperty($attendeeName, $attendeeValue, $attendeeParameters);
}
$rendered = $vResource->Render();
$sql = 'UPDATE caldav_data SET caldav_data=:dav_data, dav_etag=:etag WHERE dav_id=:dav_id';
$davIdArray[':etag'] = md5($rendered);
$davIdArray[':dav_data'] = $rendered;
$query = new AwlQuery($sql, $davIdArray);
$query->Execute();
}
