public function __construct($in_dtz = null)
{
$this->tz_defined = false;
if (!isset($in_dtz)) {
return;
}
$olson = olson_from_tzstring($in_dtz);
if (isset($olson)) {
try {
parent::__construct($olson);
$this->tz_defined = $olson;
} catch (Exception $e) {
dbg_error_log('ERROR', 'Could not handle timezone "%s" (%s) - will use floating time', $in_dtz, $olson);
parent::__construct('UTC');
$this->tz_defined = false;
}
} else {
dbg_error_log('ERROR', 'Could not recognize timezone "%s" - will use floating time', $in_dtz);
parent::__construct('UTC');
$this->tz_defined = false;
}
}
/**
* @DEPRECATED: This class will be removed soon.
* Save any timezones by TZID in the PostgreSQL database for future re-use.
*/
function SaveTimeZones()
{
global $c;
deprecated('iCalendar::SaveTimeZones');
$this->tzid_list = array_keys($this->component->CollectParameterValues('TZID'));
if (!isset($this->tzid) && count($this->tzid_list) > 0) {
dbg_error_log('iCalendar', "::TZID_List[0] = '%s', count=%d", $this->tzid_list[0], count($this->tzid_list));
$this->tzid = $this->tzid_list[0];
}
$timezones = $this->component->GetComponents('VTIMEZONE');
if ($timezones === false || count($timezones) == 0) {
return;
}
$this->vtimezone = $timezones[0]->Render();
// Backward compatibility
$tzid = $this->Get('TZID');
if (isset($c->save_time_zone_defs) && $c->save_time_zone_defs) {
foreach ($timezones as $k => $tz) {
$tzid = $tz->GetPValue('TZID');
$qry = new AwlQuery("SELECT tz_locn FROM time_zone WHERE tz_id = ?;", $tzid);
if ($qry->Exec('iCalendar') && $qry->rows() == 1) {
$row = $qry->Fetch();
if (!isset($first_tzid)) {
$first_tzid = $row->tz_locn;
}
continue;
}
if ($tzid != "" && $qry->rows() == 0) {
$tzname = $tz->GetPValue('X-LIC-LOCATION');
if (!isset($tzname)) {
$tzname = olson_from_tzstring($tzid);
}
$qry2 = new AwlQuery("INSERT INTO time_zone (tz_id, tz_locn, tz_spec) VALUES( ?, ?, ? );", $tzid, $tzname, $tz->Render());
$qry2->Exec('iCalendar');
}
}
}
if (!isset($this->tzid) && isset($first_tzid)) {
$this->tzid = $first_tzid;
}
if ((!isset($this->tz_locn) || $this->tz_locn == '') && isset($first_tzid) && $first_tzid != '') {
$tzname = preg_replace('#^(.*[^a-z])?([a-z]+/[a-z]+)$#i', '$2', $first_tzid);
if (preg_match('#\\S+/\\S+#', $tzname)) {
$this->tz_locn = $tzname;
}
dbg_error_log('iCalendar', " TZCrap1: TZID '%s', Location '%s', Perhaps: %s", $tzid, $this->tz_locn, $tzname);
}
if ((!isset($this->tz_locn) || $this->tz_locn == "") && isset($c->local_tzid)) {
$this->tz_locn = $c->local_tzid;
}
if (!isset($this->tzid) && isset($this->tz_locn)) {
$this->tzid = $this->tz_locn;
}
}
/**
* Actually write the resource to the database. All checking of whether this is reasonable
* should be done before this is called.
*
* @param DAVResource $resource The resource being written
* @param string $caldav_data The actual data to be written
* @param DAVResource $collection The collection containing the resource being written
* @param int $author The user_no who wants to put this resource on the server
* @param string $etag An etag unique for this event
* @param string $put_action_type INSERT or UPDATE depending on what we are to do
* @param boolean $caldav_context True, if we are responding via CalDAV, false for other ways of calling this
* @param string Either 'INSERT' or 'UPDATE': the type of action we are doing
* @param boolean $log_action Whether to log the fact that we are writing this into an action log (if configured)
* @param string $weak_etag An etag that is NOT modified on ATTENDEE changes for this event
*
* @return boolean True for success, false for failure.
*/
function write_resource(DAVResource $resource, $caldav_data, DAVResource $collection, $author, &$etag, $put_action_type, $caldav_context, $log_action = true, $weak_etag = null)
{
global $tz_regex, $session;
$path = $resource->bound_from();
$user_no = $collection->user_no();
$vcal = new vCalendar($caldav_data);
$resources = $vcal->GetComponents('VTIMEZONE', false);
// Not matching VTIMEZONE
if (!isset($resources[0])) {
$resource_type = 'Unknown';
/** @todo Handle writing non-calendar resources, like address book entries or random file data */
rollback_on_error($caldav_context, $user_no, $path, translate('No calendar content'), 412);
return false;
} else {
$first = $resources[0];
if (!$first instanceof vComponent) {
print $vcal->Render();
fatal('This is not a vComponent!');
}
$resource_type = $first->GetType();
}
$collection_id = $collection->collection_id();
$qry = new AwlQuery();
$qry->Begin();
$dav_params = array(':etag' => $etag, ':dav_data' => $caldav_data, ':caldav_type' => $resource_type, ':session_user' => $author, ':weak_etag' => $weak_etag);
$calitem_params = array(':etag' => $etag);
if ($put_action_type == 'INSERT') {
$qry->QDo('SELECT nextval(\'dav_id_seq\') AS dav_id, null AS caldav_data');
} else {
$qry->QDo('SELECT dav_id, caldav_data FROM caldav_data WHERE dav_name = :dav_name ', array(':dav_name' => $path));
}
if ($qry->rows() != 1 || !($row = $qry->Fetch())) {
// No dav_id? => We're toast!
trace_bug('No dav_id for "%s" on %s!!!', $path, $create_resource ? 'create' : 'update');
rollback_on_error($caldav_context, $user_no, $path);
return false;
}
$dav_id = $row->dav_id;
$old_dav_data = $row->caldav_data;
$dav_params[':dav_id'] = $dav_id;
$calitem_params[':dav_id'] = $dav_id;
$due = null;
if ($first->GetType() == 'VTODO') {
$due = $first->GetPValue('DUE');
}
$calitem_params[':due'] = $due;
$dtstart = $first->GetPValue('DTSTART');
if (empty($dtstart)) {
$dtstart = $due;
}
$calitem_params[':dtstart'] = $dtstart;
$dtend = $first->GetPValue('DTEND');
if (isset($dtend) && $dtend != '') {
dbg_error_log('PUT', ' DTEND: "%s", DTSTART: "%s", DURATION: "%s"', $dtend, $dtstart, $first->GetPValue('DURATION'));
$calitem_params[':dtend'] = $dtend;
$dtend = ':dtend';
} else {
// In this case we'll construct the SQL directly as a calculation relative to :dtstart
$dtend = 'NULL';
if ($first->GetPValue('DURATION') != '' and $dtstart != '') {
$duration = trim(preg_replace('#[PT]#', ' ', $first->GetPValue('DURATION')));
if ($duration == '') {
$duration = '0 seconds';
}
$dtend = '(:dtstart::timestamp with time zone + :duration::interval)';
$calitem_params[':duration'] = $duration;
} elseif ($first->GetType() == 'VEVENT') {
/**
* From RFC2445 4.6.1:
* For cases where a "VEVENT" calendar component specifies a "DTSTART"
* property with a DATE data type but no "DTEND" property, the events
* non-inclusive end is the end of the calendar date specified by the
* "DTSTART" property. For cases where a "VEVENT" calendar component specifies
* a "DTSTART" property with a DATE-TIME data type but no "DTEND" property,
* the event ends on the same calendar date and time of day specified by the
* "DTSTART" property.
*
* So we're looking for 'VALUE=DATE', to identify the duration, effectively.
*
*/
$dtstart_prop = $first->GetProperty('DTSTART');
$value_type = $dtstart_prop->GetParameterValue('VALUE');
dbg_error_log('PUT', 'DTSTART without DTEND. DTSTART value type is %s', $value_type);
if (isset($value_type) && $value_type == 'DATE') {
$dtend = '(:dtstart::timestamp with time zone::date + \'1 day\'::interval)';
} else {
$dtend = ':dtstart';
}
}
}
$dtstamp = $first->GetPValue('DTSTAMP');
if (!isset($dtstamp) || $dtstamp == '') {
// Strictly, we're dealing with an out of spec component here, but we'll try and survive
$dtstamp = gmdate('Ymd\\THis\\Z');
}
$calitem_params[':dtstamp'] = $dtstamp;
$last_modified = $first->GetPValue('LAST-MODIFIED');
if (!isset($last_modified) || $last_modified == '') {
$last_modified = $dtstamp;
}
$dav_params[':modified'] = $last_modified;
$calitem_params[':modified'] = $last_modified;
$created = $first->GetPValue('CREATED');
if ($created == '00001231T000000Z') {
$created = '20001231T000000Z';
}
$class = $first->GetPValue('CLASS');
/* Check and see if we should over ride the class. */
/** @todo is there some way we can move this out of this function? Or at least get rid of the need for the SQL query here. */
if (public_events_only($user_no, $path)) {
$class = 'PUBLIC';
}
/*
* It seems that some calendar clients don't set a class...
* RFC2445, 4.8.1.3:
* Default is PUBLIC
*/
if (!isset($class) || $class == '') {
$class = 'PUBLIC';
}
$calitem_params[':class'] = $class;
/** Calculate what timezone to set, first, if possible */
$last_olson = 'Turkmenikikamukau';
// I really hope this location doesn't exist!
$tzid = GetTZID($first);
if (!empty($tzid)) {
$timezones = $vcal->GetComponents('VTIMEZONE');
foreach ($timezones as $k => $tz) {
if ($tz->GetPValue('TZID') != $tzid) {
/**
* We'll skip any tz definitions that are for a TZID other than the DTSTART/DUE on the first VEVENT/VTODO
*/
dbg_error_log('ERROR', ' Event uses TZID[%s], skipping included TZID[%s]!', $tz->GetPValue('TZID'), $tzid);
continue;
}
$olson = olson_from_tzstring($tzid);
if (empty($olson)) {
$olson = $tz->GetPValue('X-LIC-LOCATION');
if (!empty($olson)) {
$olson = olson_from_tzstring($olson);
}
}
}
dbg_error_log('PUT', ' Using TZID[%s] and location of [%s]', $tzid, isset($olson) ? $olson : '');
if (!empty($olson) && $olson != $last_olson && preg_match($tz_regex, $olson)) {
dbg_error_log('PUT', ' Setting timezone to %s', $olson);
if ($olson != '') {
$qry->QDo('SET TIMEZONE TO \'' . $olson . "'");
}
$last_olson = $olson;
}
$params = array(':tzid' => $tzid);
$qry = new AwlQuery('SELECT 1 FROM timezones WHERE tzid = :tzid', $params);
if ($qry->Exec('PUT', __LINE__, __FILE__) && $qry->rows() == 0) {
$params[':olson_name'] = $olson;
$params[':vtimezone'] = isset($tz) ? $tz->Render() : null;
$qry->QDo('INSERT INTO timezones (tzid, olson_name, active, vtimezone) VALUES(:tzid,:olson_name,false,:vtimezone)', $params);
}
if (!isset($olson) || $olson == '') {
$olson = $tzid;
}
}
$qry->QDo('SELECT new_sync_token(0,' . $collection_id . ')');
$calitem_params[':tzid'] = $tzid;
$calitem_params[':uid'] = $first->GetPValue('UID');
$calitem_params[':summary'] = $first->GetPValue('SUMMARY');
$calitem_params[':location'] = $first->GetPValue('LOCATION');
$calitem_params[':transp'] = $first->GetPValue('TRANSP');
$calitem_params[':description'] = $first->GetPValue('DESCRIPTION');
$calitem_params[':rrule'] = $first->GetPValue('RRULE');
$calitem_params[':url'] = $first->GetPValue('URL');
$calitem_params[':priority'] = $first->GetPValue('PRIORITY');
$calitem_params[':percent_complete'] = $first->GetPValue('PERCENT-COMPLETE');
$calitem_params[':status'] = $first->GetPValue('STATUS');
if (!$collection->IsSchedulingCollection()) {
if (do_scheduling_requests($vcal, $put_action_type == 'INSERT', $old_dav_data, true)) {
$dav_params[':dav_data'] = $vcal->Render(null, true);
$etag = null;
}
}
if (!isset($dav_params[':modified'])) {
$dav_params[':modified'] = 'now';
}
if ($put_action_type == 'INSERT') {
$sql = 'INSERT INTO caldav_data ( dav_id, user_no, dav_name, dav_etag, caldav_data, caldav_type, logged_user, created, modified, collection_id, weak_etag )
VALUES( :dav_id, :user_no, :dav_name, :etag, :dav_data, :caldav_type, :session_user, :created, :modified, :collection_id, :weak_etag )';
$dav_params[':collection_id'] = $collection_id;
$dav_params[':user_no'] = $user_no;
$dav_params[':dav_name'] = $path;
$dav_params[':created'] = isset($created) && $created != '' ? $created : $dtstamp;
} else {
$sql = 'UPDATE caldav_data SET caldav_data=:dav_data, dav_etag=:etag, caldav_type=:caldav_type, logged_user=:session_user,
modified=:modified, weak_etag=:weak_etag WHERE dav_id=:dav_id';
}
$qry = new AwlQuery($sql, $dav_params);
if (!$qry->Exec('PUT', __LINE__, __FILE__)) {
fatal('Insert into calendar_item failed...');
rollback_on_error($caldav_context, $user_no, $path);
return false;
}
if ($put_action_type == 'INSERT') {
$sql = <<<EOSQL
INSERT INTO calendar_item (user_no, dav_name, dav_id, dav_etag, uid, dtstamp,
dtstart, dtend, summary, location, class, transp,
description, rrule, tz_id, last_modified, url, priority,
created, due, percent_complete, status, collection_id )
VALUES ( :user_no, :dav_name, :dav_id, :etag, :uid, :dtstamp,
:dtstart, {$dtend}, :summary, :location, :class, :transp,
:description, :rrule, :tzid, :modified, :url, :priority,
:created, :due, :percent_complete, :status, :collection_id )
EOSQL;
$sync_change = 201;
$calitem_params[':collection_id'] = $collection_id;
$calitem_params[':user_no'] = $user_no;
$calitem_params[':dav_name'] = $path;
$calitem_params[':created'] = $dav_params[':created'];
} else {
$sql = <<<EOSQL
UPDATE calendar_item SET dav_etag=:etag, uid=:uid, dtstamp=:dtstamp,
dtstart=:dtstart, dtend={$dtend}, summary=:summary, location=:location,
class=:class, transp=:transp, description=:description, rrule=:rrule,
tz_id=:tzid, last_modified=:modified, url=:url, priority=:priority,
due=:due, percent_complete=:percent_complete, status=:status
WHERE dav_id=:dav_id
EOSQL;
$sync_change = 200;
}
write_alarms($dav_id, $first);
write_attendees($dav_id, $vcal);
if ($log_action && function_exists('log_caldav_action')) {
log_caldav_action($put_action_type, $first->GetPValue('UID'), $user_no, $collection_id, $path);
} else {
if ($log_action) {
dbg_error_log('PUT', 'No log_caldav_action( %s, %s, %s, %s, %s) can be called.', $put_action_type, $first->GetPValue('UID'), $user_no, $collection_id, $path);
}
}
$qry = new AwlQuery($sql, $calitem_params);
if (!$qry->Exec('PUT', __LINE__, __FILE__)) {
rollback_on_error($caldav_context, $user_no, $path);
return false;
}
$qry->QDo("SELECT write_sync_change( {$collection_id}, {$sync_change}, :dav_name)", array(':dav_name' => $path));
$qry->Commit();
if (function_exists('post_commit_action')) {
post_commit_action($put_action_type, $first->GetPValue('UID'), $user_no, $collection_id, $path);
}
// Uncache anything to do with the collection
$cache = getCacheInstance();
$cache_ns = 'collection-' . preg_replace('{/[^/]*$}', '/', $path);
$cache->delete($cache_ns, null);
dbg_error_log('PUT', 'User: %d, ETag: %s, Path: %s', $author, $etag, $path);
return true;
// Success!
}
