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WritableCollection.php
<?php
include_once('DAVResource.php');
class WritableCollection extends DAVResource {
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');
}
function WriteCalendarMember( vCalendar $vcal, $create_resource, $do_scheduling=false, $segment_name = null, $log_action=false ) {
if ( !$this->IsSchedulingCollection() && !$this->IsCalendar() ) {
dbg_error_log( 'PUT', '"%s" is not a calendar or scheduling collection!', $this->dav_name);
return false;
}
global $session, $caldav_context;
$resources = $vcal->GetComponents('VTIMEZONE',false); // Not matching VTIMEZONE
$user_no = $this->user_no();
$collection_id = $this->collection_id();
if ( !isset($resources[0]) ) {
dbg_error_log( 'PUT', 'No calendar content!');
rollback_on_error( $caldav_context, $user_no, $this->dav_name.'/'.$segment_name, translate('No calendar content'), 412 );
return false;
}
else {
$first = $resources[0];
$resource_type = $first->GetType();
}
$uid = $vcal->GetUID();
if ( empty($segment_name) ) {
$segment_name = $uid.'.ics';
}
$path = $this->dav_name() . $segment_name;
$caldav_data = $vcal->Render();
$etag = md5($caldav_data);
$weak_etag = null;
$qry = new AwlQuery();
$existing_transaction_state = $qry->TransactionState();
if ( $existing_transaction_state == 0 ) $qry->Begin();
if ( $create_resource ) {
$qry->QDo('SELECT nextval(\'dav_id_seq\') AS dav_id');
}
else {
$qry->QDo('SELECT dav_id FROM caldav_data WHERE dav_name = :dav_name ', array(':dav_name' => $path));
}
if ( $qry->rows() != 1 || !($row = $qry->Fetch()) ) {
if ( !$create_resource ) {
// Looks like we will have to create it, even if the caller thought we wouldn't
$qry->QDo('SELECT nextval(\'dav_id_seq\') AS dav_id');
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;
}
$create_resource = true;
dbg_error_log( 'PUT', 'Unexpected need to create resource at "%s"', $path);
}
}
$dav_id = $row->dav_id;
$calitem_params = array(
':dav_name' => $path,
':user_no' => $user_no,
':etag' => $etag,
':dav_id' => $dav_id
);
$dav_params = array_merge($calitem_params, array(
':dav_data' => $caldav_data,
':caldav_type' => $resource_type,
':session_user' => $session->user_no,
':weak_etag' => $weak_etag
) );
if ( !$this->IsSchedulingCollection() && $do_scheduling ) {
if ( do_scheduling_requests($vcal, $create_resource ) ) {
$dav_params[':dav_data'] = $vcal->Render(null, true);
$etag = null;
}
}
if ( $create_resource ) {
$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, current_timestamp, current_timestamp, :collection_id, :weak_etag )';
$dav_params[':collection_id'] = $collection_id;
}
else {
$sql = 'UPDATE caldav_data SET caldav_data=:dav_data, dav_etag=:etag, caldav_type=:caldav_type, logged_user=:session_user,
modified=current_timestamp, weak_etag=:weak_etag WHERE dav_id=:dav_id';
}
if ( !$qry->QDo($sql,$dav_params) ) {
rollback_on_error( $caldav_context, $user_no, $path);
return false;
}
$dtstart = $first->GetPValue('DTSTART');
$calitem_params[':dtstart_orig'] = $dtstart;
if ( (!isset($dtstart) || $dtstart == '') && $first->GetPValue('DUE') != '' ) {
$dtstart = $first->GetPValue('DUE');
}
$dtend = $first->GetPValue('DTEND');
$calitem_params[':dtend_orig'] = $dtend;
if ( isset($dtend) && $dtend != '' ) {
dbg_error_log( 'PUT', ' DTEND: "%s", DTSTART: "%s", DURATION: "%s"', $dtend, $first->GetPValue('DTSTART'), $first->GetPValue('DURATION') );
$calitem_params[':dtend'] = $dtend;
$dtend = ':dtend';
}
else {
$dtend = 'NULL';
if ( $first->GetPValue('DURATION') != '' AND $dtstart != '' ) {
$duration = 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' ) {
$value_type = $first->GetProperty('DTSTART')->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';
}
}
$last_modified = $first->GetPValue('LAST-MODIFIED');
if ( !isset($last_modified) || $last_modified == '' ) {
$last_modified = gmdate( 'Ymd\THis\Z' );
}
$calitem_params[':modified'] = $last_modified;
$dtstamp = $first->GetPValue('DTSTAMP');
if ( !isset($dtstamp) || $dtstamp == '' ) {
$dtstamp = $last_modified;
}
$calitem_params[':dtstamp'] = $dtstamp;
$class = $first->GetPValue('CLASS');
if ( $this->IsPublicOnly() && isset($class)) {
$class = 'PUBLIC';
}
$calitem_params[':class'] = $class;
$last_olson = 'Turkmenikikamukau'; // I really hope this location doesn't exist!
$tzid = self::GetTZID($first);
if ( !empty($tzid) ) {
$tz = $vcal->GetTimeZone($tzid);
$olson = $vcal->GetOlsonName($tz);
if ( !empty($olson) && ($olson != $last_olson) ) {
dbg_error_log( 'PUT', ' Setting timezone to %s', $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 );
$params[':last_modified'] = (isset($tz) ? $tz->GetPValue('LAST-MODIFIED') : null );
if ( empty($params[':last_modified']) ) {
$params[':last_modified'] = gmdate('Ymd\THis\Z');
}
$qry->QDo('INSERT INTO timezones (tzid, olson_name, active, vtimezone, last_modified) VALUES(:tzid,:olson_name,false,:vtimezone,:last_modified)', $params );
}
}
$created = $first->GetPValue('CREATED');
if ( $created == '00001231T000000Z' ) $created = '20001231T000000Z';
$calitem_params[':created'] = $created;
$calitem_params[':tzid'] = $tzid;
$calitem_params[':uid'] = $uid;
$calitem_params[':url'] = $first->GetPValue('URL');
$calitem_params[':due'] = $first->GetPValue('DUE');
$calitem_params[':rrule'] = $first->GetPValue('RRULE');
$calitem_params[':dtstart'] = $first->GetPValue('DTSTART');
$calitem_params[':summary'] = $first->GetPValue('SUMMARY');
$calitem_params[':location'] = $first->GetPValue('LOCATION');
$calitem_params[':transp'] = $first->GetPValue('TRANSP');
$calitem_params[':status'] = $first->GetPValue('STATUS');
$calitem_params[':priority'] = $first->GetPValue('PRIORITY');
$calitem_params[':description'] = $first->GetPValue('DESCRIPTION');
$calitem_params[':percent_complete'] = $first->GetPValue('PERCENT-COMPLETE');
$range = getVCalendarRange($vcal, $this->timezone_name());
$calitem_params[':first_instance_start'] = isset($range->from) ? $range->from->UTC() : null;
$calitem_params[':last_instance_end'] = isset($range->until) ? $range->until->UTC() : null;
if ( $create_resource ) {
$sql = <<<EOSQL
INSERT INTO calendar_item (user_no, dav_name, dav_id, dav_etag, uid, dtstamp,
dtstart, dtstart_orig, dtend, dtend_orig, summary, location, class, transp,
description, rrule, tz_id, last_modified, url, priority, created, due,
percent_complete, status, collection_id, first_instance_start,
last_instance_end )
VALUES ( :user_no, :dav_name, currval('dav_id_seq'), :etag, :uid, :dtstamp,
:dtstart, :dtstart_orig, $dtend, :dtend_orig, :summary, :location, :class,
:transp, :description, :rrule, :tzid, :modified, :url, :priority,
:created, :due, :percent_complete, :status, $collection_id,
:first_instance_start, :last_instance_end)
EOSQL;
$sync_change = 201;
}
else {
$sql = <<<EOSQL
UPDATE calendar_item
SET dav_etag=:etag, uid=:uid, dtstamp=:dtstamp,
dtstart=:dtstart, dtstart_orig=:dtstart_orig, dtend=$dtend,
dtend_orig=:dtend_orig, summary=:summary, location=:location, class=:class,
transp=:transp, description=:description, rrule=:rrule, tz_id=:tzid,
last_modified=:modified, url=:url, priority=:priority, created=:created,
due=:due, percent_complete=:percent_complete, status=:status,
first_instance_start=:first_instance_start,
last_instance_end=:last_instance_end
WHERE user_no=:user_no AND dav_name=:dav_name
EOSQL;
$sync_change = 200;
}
if ( !$this->IsSchedulingCollection() ) {
$this->WriteCalendarAlarms($dav_id, $vcal);
$this->WriteCalendarAttendees($dav_id, $vcal);
$put_action_type = ($create_resource ? 'INSERT' : 'UPDATE');
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 ) );
if ( $existing_transaction_state == 0 ) $qry->Commit();
dbg_error_log( 'PUT', 'User: %d, ETag: %s, Path: %s', $session->user_no, $etag, $path);
return $segment_name;
}
function WriteMember( $resource, $create_resource, $segment_name = null, $log_action=true ) {
if ( ! $this->IsCollection() ) {
dbg_error_log( 'PUT', '"%s" is not a collection path', $this->dav_name);
return false;
}
if ( ! is_object($resource) ) {
dbg_error_log( 'PUT', 'No data supplied!' );
return false;
}
if ( $resource instanceof vCalendar ) {
return $this->WriteCalendarMember($resource,$create_resource,true,$segment_name,$log_action);
}
else if ( $resource instanceof VCard )
trace_bug( "Calling undefined function WriteAddressbookMember!? Please report this to the davical project: davical-general@lists.sourceforge.net" );
return $this->WriteAddressbookMember($resource,$create_resource,$segment_name, $log_action);
return $segment_name;
}
function WriteCalendarAlarms( $dav_id, vCalendar $vcal ) {
$qry = new AwlQuery('DELETE FROM calendar_alarm WHERE dav_id = '.$dav_id );
$qry->Exec('PUT',__LINE__,__FILE__);
$components = $vcal->GetComponents();
$qry->SetSql('INSERT INTO calendar_alarm ( dav_id, count, action, trigger, summary, description, component, next_trigger )
VALUES( '.$dav_id.', :count, :action, :trigger, :summary, :description, :component,
:related::timestamp with time zone + :related_trigger::interval )' );
$qry->Prepare();
$count = 0;
foreach( $components AS $component ) {
if ( $component->GetType() == 'VTIMEZONE' ) continue;
$alarms = $component->GetComponents('VALARM');
if ( count($alarms) < 1 ) return;
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 = $component->GetPValue('DTEND'); break;
case 'DUE': $related = $component->GetPValue('DUE'); break;
default: $related = $component->GetPValue('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-]#', ' ', $duration ));
if ($related_trigger == '') $related_trigger = '0 seconds';
if ( $minus ) {
$related_trigger = preg_replace( '{(\d+[WDHMS])}', '-$1 ', $related_trigger );
}
else {
$related_trigger = preg_replace( '{(\d+[WDHMS])}', '$1 ', $related_trigger );
}
}
else {
if ( false === strtotime($trigger->Value()) ) continue; // Invalid date.
}
$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 );
$qry->Bind(':related_trigger', $related_trigger );
$qry->Bind(':count', $count++ );
$qry->Exec('PUT',__LINE__,__FILE__);
}
}
}
function WriteCalendarAttendees( $dav_id, vCalendar $vcal ) {
$qry = new AwlQuery('DELETE FROM calendar_attendee WHERE dav_id = '.$dav_id );
$qry->Exec('PUT',__LINE__,__FILE__);
$attendees = $vcal->GetAttendees();
if ( count($attendees) < 1 ) return;
$qry->SetSql('INSERT INTO calendar_attendee ( dav_id, status, partstat, cn, attendee, role, rsvp, property )
VALUES( '.$dav_id.', :status, :partstat, :cn, :attendee, :role, :rsvp, :property )' );
$qry->Prepare();
$processed = array();
foreach( $attendees AS $v ) {
$attendee = $v->Value();
if ( isset($processed[$attendee]) ) {
dbg_error_log( 'LOG', 'Duplicate attendee "%s" in resource "%d"', $attendee, $dav_id );
dbg_error_log( 'LOG', 'Original: "%s"', $processed[$attendee] );
dbg_error_log( 'LOG', 'Duplicate: "%s"', $v->Render() );
continue;
}
$qry->Bind(':attendee', $attendee );
$qry->Bind(':status', $v->GetParameterValue('STATUS') );
$qry->Bind(':partstat', $v->GetParameterValue('PARTSTAT') );
$qry->Bind(':cn', $v->GetParameterValue('CN') );
$qry->Bind(':role', $v->GetParameterValue('ROLE') );
$qry->Bind(':rsvp', $v->GetParameterValue('RSVP') );
$qry->Bind(':property', $v->Render() );
$qry->Exec('PUT',__LINE__,__FILE__);
$processed[$attendee] = $v->Render();
}
}
function actualDeleteCalendarMember( $member_dav_name ) {
global $session, $caldav_context;
// A quick sanity check...
$segment_name = str_replace( $this->dav_name(), '', $member_dav_name );
if ( strstr($segment_name, '/') !== false ) {
@dbg_error_log( "DELETE", "DELETE: Refused to delete member '%s' from calendar '%s'!", $member_dav_name, $this->dav_name() );
return false;
}
// We need to serialise access to this process just for this collection
$cache = getCacheInstance();
$myLock = $cache->acquireLock('collection-'.$this->dav_name());
$qry = new AwlQuery();
$params = array( ':dav_name' => $member_dav_name );
if ( $qry->QDo("SELECT write_sync_change(collection_id, 404, caldav_data.dav_name) FROM caldav_data WHERE dav_name = :dav_name", $params )
&& $qry->QDo("DELETE FROM property WHERE dav_name = :dav_name", $params )
&& $qry->QDo("DELETE FROM locks WHERE dav_name = :dav_name", $params )
&& $qry->QDo("DELETE FROM caldav_data WHERE dav_name = :dav_name", $params ) ) {
@dbg_error_log( "DELETE", "DELETE: Calendar member %s deleted from calendar '%s'", $member_dav_name, $this->dav_name() );
$cache->releaseLock($myLock);
return true;
}
$cache->releaseLock($myLock);
return false;
}
public function whatChangedSince( $some_old_token ) {
$params = array( ':collection_id' => $this->collection_id() );
if ( $some_old_token == 0 || empty($some_old_token) ) {
$sql = <<<EOSQL
SELECT calendar_item.*, caldav_data.*, addressbook_resource.*, 201 AS sync_status,
COALESCE(addressbook_resource.uid,calendar_item.uid) AS uid
FROM caldav_data
LEFT JOIN calendar_item USING (dav_id)
LEFT JOIN addressbook_resource USING (dav_id)
WHERE caldav_data.collection_id = :collection_id
ORDER BY caldav_data.collection_id, caldav_data.dav_id
EOSQL;
}
else {
$params[':sync_token'] = $some_old_token;
$sql = <<<EOSQL
SELECT calendar_item.*, caldav_data.*, addressbook_resource.*, sync_changes.*,
COALESCE(addressbook_resource.uid,calendar_item.uid) AS uid
FROM sync_changes
LEFT JOIN caldav_data USING (collection_id,dav_id)
LEFT JOIN calendar_item USING (collection_id,dav_id)
LEFT JOIN addressbook_resource USING (dav_id)
WHERE sync_changes.collection_id = :collection_id
AND sync_time >= (SELECT modification_time FROM sync_tokens WHERE sync_token = :sync_token)
ORDER BY sync_changes.collection_id, sync_changes.dav_id, sync_changes.sync_time
EOSQL;
}
$qry = new AwlQuery($sql, $params );
$changes = array();
if ( $qry->Exec('WritableCollection') && $qry->rows() ) {
while( $change = $qry->Fetch() ) {
$changes[$change->uid] = $change;
}
}
return $changes;
}
}
DAVResource
Definition DAVResource.php:25
DAVResource\IsCalendar
IsCalendar()
Definition DAVResource.php:1177
DAVResource\IsCollection
IsCollection()
Definition DAVResource.php:1161
VCard
Definition vcard.php:9
WritableCollection
Definition WritableCollection.php:4
WritableCollection\WriteCalendarAlarms
WriteCalendarAlarms( $dav_id, vCalendar $vcal)
Definition WritableCollection.php:337
WritableCollection\GetTZID
static GetTZID(vComponent $comp)
Definition WritableCollection.php:11
WritableCollection\actualDeleteCalendarMember
actualDeleteCalendarMember( $member_dav_name)
Definition WritableCollection.php:440
WritableCollection\whatChangedSince
whatChangedSince( $some_old_token)
Definition WritableCollection.php:478
WritableCollection\WriteMember
WriteMember( $resource, $create_resource, $segment_name=null, $log_action=true)
Definition WritableCollection.php:310
WritableCollection\WriteCalendarAttendees
WriteCalendarAttendees( $dav_id, vCalendar $vcal)
Definition WritableCollection.php:402
WritableCollection\WriteCalendarMember
WriteCalendarMember(vCalendar $vcal, $create_resource, $do_scheduling=false, $segment_name=null, $log_action=false)
Definition WritableCollection.php:33