/**
* Return XML for a single component from the DB
*
* @param array $properties The properties for this component
* @param string $item The DB row data for this component
*
* @return string An XML document which is the response for the component
*/
function component_to_xml($properties, $item)
{
global $session, $c, $request, $reply;
dbg_error_log("REPORT", "Building XML Response for item '%s'", $item->dav_name);
$denied = array();
$unsupported = array();
$caldav_data = $item->caldav_data;
$displayname = preg_replace('{^.*/}', '', $item->dav_name);
$type = 'unknown';
$contenttype = 'text/plain';
switch (strtoupper($item->caldav_type)) {
case 'VJOURNAL':
case 'VEVENT':
case 'VTODO':
$displayname = $item->summary;
$type = 'calendar';
$contenttype = 'text/calendar';
if (isset($properties['urn:ietf:params:xml:ns:caldav:calendar-data']) || isset($properties['DAV::displayname'])) {
if (!$request->AllowedTo('all') && $session->user_no != $item->user_no) {
// the user is not admin / owner of this calendar looking at his calendar and can not admin the other cal
if ($item->class == 'CONFIDENTIAL' || !$request->AllowedTo('read')) {
dbg_error_log("REPORT", "Anonymising confidential event for: %s", $item->dav_name);
$vcal = new vCalendar($caldav_data);
$caldav_data = $vcal->Confidential()->Render();
$displayname = translate('Busy');
}
}
}
if (isset($c->hide_alarm) && $c->hide_alarm) {
$dav_resource = new DAVResource($item->dav_name);
if (isset($properties['urn:ietf:params:xml:ns:caldav:calendar-data']) && !$dav_resource->HavePrivilegeTo('write')) {
dbg_error_log("REPORT", "Stripping event alarms for: %s", $item->dav_name);
$vcal = new vCalendar($caldav_data);
$vcal->ClearComponents('VALARM');
$caldav_data = $vcal->Render();
}
}
break;
case 'VCARD':
$displayname = $item->fn;
$type = 'vcard';
$contenttype = 'text/vcard';
break;
}
$url = ConstructURL($item->dav_name);
$prop = new XMLElement("prop");
$need_resource = false;
foreach ($properties as $full_tag => $v) {
$base_tag = preg_replace('{^.*:}', '', $full_tag);
switch ($full_tag) {
case 'DAV::getcontentlength':
$contentlength = strlen($caldav_data);
$prop->NewElement($base_tag, $contentlength);
break;
case 'DAV::getlastmodified':
$prop->NewElement($base_tag, ISODateToHTTPDate($item->modified));
break;
case 'urn:ietf:params:xml:ns:caldav:calendar-data':
if ($type == 'calendar') {
$reply->CalDAVElement($prop, $base_tag, $caldav_data);
} else {
$unsupported[] = $base_tag;
}
break;
case 'urn:ietf:params:xml:ns:carddav:address-data':
if ($type == 'vcard') {
$reply->CardDAVElement($prop, $base_tag, $caldav_data);
} else {
$unsupported[] = $base_tag;
}
break;
case 'DAV::getcontenttype':
$prop->NewElement($base_tag, $contenttype);
break;
case 'DAV::current-user-principal':
$prop->NewElement("current-user-principal", $request->current_user_principal_xml);
break;
case 'DAV::displayname':
$prop->NewElement($base_tag, $displayname);
break;
case 'DAV::resourcetype':
$prop->NewElement($base_tag);
// Just an empty resourcetype for a non-collection.
break;
case 'DAV::getetag':
$prop->NewElement($base_tag, '"' . $item->dav_etag . '"');
break;
case '"current-user-privilege-set"':
$prop->NewElement($base_tag, privileges($request->permissions));
break;
default:
// It's harder. We need the DAVResource() to get this one.
$need_resource = true;
}
if ($need_resource) {
break;
}
}
$href = new XMLElement("href", $url);
if ($need_resource) {
if (!isset($dav_resource)) {
$dav_resource = new DAVResource($item->dav_name);
}
$elements = $dav_resource->GetPropStat(array_keys($properties), $reply);
array_unshift($elements, $href);
} else {
$elements = array($href);
$status = new XMLElement("status", "HTTP/1.1 200 OK");
$elements[] = new XMLElement("propstat", array($prop, $status));
if (count($denied) > 0) {
$status = new XMLElement("status", "HTTP/1.1 403 Forbidden");
$noprop = new XMLElement("prop");
foreach ($denied as $k => $v) {
$reply->NSElement($noprop, $v);
}
$elements[] = new XMLElement("propstat", array($noprop, $status));
}
if (!$request->PreferMinimal() && count($unsupported) > 0) {
$status = new XMLElement("status", "HTTP/1.1 404 Not Found");
$noprop = new XMLElement("prop");
foreach ($unsupported as $k => $v) {
$reply->NSElement($noprop, $v);
}
$elements[] = new XMLElement("propstat", array($noprop, $status));
}
}
$response = new XMLElement("response", $elements);
return $response;
}
