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caldav-REPORT-sync-collection.php
<?php
$responses = array();
$sync_level = $xmltree->GetPath('/DAV::sync-collection/DAV::sync-level');
if ( empty($sync_level) ) {
$sync_level = $request->depth;
}
else {
$sync_level = $sync_level[0]->GetContent();
if ( $sync_level == 'infinity' )
$sync_level = DEPTH_INFINITY;
else
$sync_level = 1;
}
if ( $sync_level == DEPTH_INFINITY ) {
$request->PreconditionFailed(403, 'DAV::sync-traversal-supported','This server does not support sync-traversal');
}
$sync_tokens = $xmltree->GetPath('/DAV::sync-collection/DAV::sync-token');
if ( isset($sync_tokens[0]) ) $sync_token = $sync_tokens[0]->GetContent();
if ( !isset($sync_token) ) $sync_token = 0;
$sync_token = intval(str_replace('data:,', '', strtolower($sync_token) ));
dbg_error_log( 'sync', " sync-token: %s", $sync_token );
$proplist = array();
$props = $xmltree->GetPath('/DAV::sync-collection/DAV::prop/*');
if ( !empty($props) ) {
foreach( $props AS $k => $v ) {
$proplist[] = $v->GetNSTag();
}
}
function display_status( $status_code ) {
return sprintf( 'HTTP/1.1 %03d %s', intval($status_code), getStatusMessage($status_code) );
}
$collection = new DAVResource( $request->path );
if ( !$collection->Exists() ) {
$request->DoResponse( 404 );
}
$bound_from = $collection->bound_from();
$collection_path = $collection->dav_name();
$request_via_binding = ($bound_from != $collection_path);
$params = array( ':collection_id' => $collection->GetProperty('collection_id'), ':sync_token' => $sync_token );
$sql = "SELECT new_sync_token( :sync_token, :collection_id)";
$qry = new AwlQuery($sql, $params);
if ( !$qry->Exec("REPORT",__LINE__,__FILE__) || $qry->rows() <= 0 ) {
$request->DoResponse( 500, translate("Database error") );
}
$row = $qry->Fetch();
if ( !isset($row->new_sync_token) ) {
$sync_token = 0;
$params[':sync_token'] = $sync_token;
if ( !$qry->QDo($sql, $params) || $qry->rows() <= 0 ) {
$request->DoResponse( 500, translate("Database error") );
}
$row = $qry->Fetch();
}
$new_token = $row->new_sync_token;
if ( $sync_token == $new_token ) {
// No change, so we just re-send the old token.
$responses[] = new XMLElement( 'sync-token', 'data:,'.$new_token );
}
else {
$hide_older = '';
if ( isset($c->hide_older_than) && intval($c->hide_older_than) > 0 )
$hide_older = " AND (CASE WHEN caldav_data.caldav_type<>'VEVENT' OR calendar_item.dtstart IS NULL OR calendar_item.rrule IS NOT NULL THEN true ELSE calendar_item.dtstart > (now() - interval '".intval($c->hide_older_than)." days') END)";
$hide_todo = '';
if ( isset($c->hide_TODO) && ($c->hide_TODO === true || (is_string($c->hide_TODO) && preg_match($c->hide_TODO, $_SERVER['HTTP_USER_AGENT']))) && ! $collection->HavePrivilegeTo('all') )
$hide_todo = " AND (caldav_data.caldav_type NOT IN ('VTODO') OR caldav_data.caldav_type IS NULL) ";
if ( $sync_token == 0 ) {
$sql = <<<EOSQL
SELECT collection.*, calendar_item.*, caldav_data.*, addressbook_resource.*, 201 AS sync_status FROM collection
LEFT JOIN caldav_data USING (collection_id)
LEFT JOIN calendar_item USING (dav_id)
LEFT JOIN addressbook_resource USING (dav_id)
WHERE collection.collection_id = :collection_id $hide_older $hide_todo
ORDER BY collection.collection_id, caldav_data.dav_id
EOSQL;
unset($params[':sync_token']);
}
else {
$sql = <<<EOSQL
SELECT collection.*, calendar_item.*, caldav_data.*, addressbook_resource.*, sync_changes.*
FROM collection LEFT JOIN sync_changes USING(collection_id)
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 collection.collection_id = :collection_id $hide_older $hide_todo
AND sync_time >= (SELECT modification_time FROM sync_tokens WHERE sync_token = :sync_token)
EOSQL;
if ( isset($c->strict_result_ordering) && $c->strict_result_ordering ) {
$sql .= " ORDER BY collection.collection_id, lower(sync_changes.dav_name), sync_changes.sync_time";
}
else {
$sql .= " ORDER BY collection.collection_id, sync_changes.dav_name, sync_changes.sync_time";
}
}
$qry = new AwlQuery($sql, $params );
$last_dav_name = '';
$first_status = 0;
if ( $qry->Exec("REPORT",__LINE__,__FILE__) ) {
if ( $qry->rows() > 50 ) {
// If there are more than 50 rows to send we should not send full data in response ...
$c->sync_resource_data_ok = false;
}
while( $object = $qry->Fetch() ) {
if ( $request_via_binding )
$object->dav_name = str_replace( $bound_from, $collection_path, $object->dav_name);
if ( $object->dav_name == $last_dav_name ) {
if ( $object->sync_status == 404 ) {
array_pop($responses);
$resultset = array(
new XMLElement( 'href', ConstructURL($object->dav_name) ),
new XMLElement( 'status', display_status($object->sync_status) )
);
$responses[] = new XMLElement( 'response', $resultset );
$first_status = 404;
}
else if ( $object->sync_status == 201 && $first_status == 404 ) {
// ... Delete ... Create ... is indicated as a create, but don't forget we started with a delete
array_pop($responses);
$dav_resource = new DAVResource($object, $collection);
$resultset = $dav_resource->GetPropStat($proplist,$reply);
array_unshift($resultset, new XMLElement( 'href', ConstructURL($object->dav_name)));
$responses[] = new XMLElement( 'response', $resultset );
}
}
else {
if ( $object->sync_status == 404 ) {
$resultset = array(
new XMLElement( 'href', ConstructURL($object->dav_name) ),
new XMLElement( 'status', display_status($object->sync_status) )
);
$first_status = 404;
}
else {
$dav_resource = new DAVResource($object, $collection);
$resultset = $dav_resource->GetPropStat($proplist,$reply);
array_unshift($resultset, new XMLElement( 'href', ConstructURL($object->dav_name)));
$first_status = $object->sync_status;
}
$responses[] = new XMLElement( 'response', $resultset );
$last_dav_name = $object->dav_name;
}
}
$responses[] = new XMLElement( 'sync-token', 'data:,'.$new_token );
}
else {
$request->DoResponse( 500, translate("Database error") );
}
}
$multistatus = new XMLElement( "multistatus", $responses, $reply->GetXmlNsArray() );
$request->XMLResponse( 207, $multistatus );
DAVResource
Definition DAVResource.php:25