function simpleCalDAVchange($client, $cal, $etag)
{
// Check for missing arguments
if (!(isset($client) && isset($cal) && isset($etag))) {
return array(1, 'Missing arguments');
}
// Parse $cal for UID
if (!preg_match('#^UID:(.*?)$#m', $cal, $matches)) {
return array(2, 'Can\'t find UID in $cal');
} else {
$uid = $matches[1];
}
// Is there a '/' at the end of the url?
if (!preg_match('#^.*?/$#', $client->calendar_url, $matches)) {
$url = $client->calendar_url . '/';
} else {
$url = $client->calendar_url;
}
// Are $uid and $etag correct?
$result = simpleCalDAVgetByUID($client, $uid);
if ($result[0] != 0 || count($result[1]) != 1) {
return array(3, 'Wrong unique ID. Can\'t find unique ID on server.', $client->GetHttpRequest(), $client->GetBody(), $client->GetResponseHeaders(), $client->GetXmlResponse());
} elseif ($result[1][0]['etag'] != $etag) {
return array(4, 'Wrong entity tag. The entity seems to have changed.', $client->GetHttpRequest(), $client->GetBody(), $client->GetResponseHeaders(), $client->GetXmlResponse());
}
// Put it!
$newEtag = $client->DoPUTRequest($url . $uid . '.ics', $cal, $etag);
// PUT-request successfull?
if ($client->GetHttpResultCode() != '204') {
if ($client->GetHttpResultCode() == '412') {
return array(5, 'You shouldn\'t get here... strange :-/.', $client->GetHttpRequest(), $client->GetBody(), $client->GetResponseHeaders(), $client->GetXmlResponse());
} else {
return array(6, 'Recieved unknown HTTP status', $client->GetHttpRequest(), $client->GetBody(), $client->GetResponseHeaders(), $client->GetXmlResponse());
}
}
return array(0, $newEtag);
}
$etagOfFirstEvent = $ret[1];
$ret = simpleCalDAVcreate($client, $secondNewEvent);
// Creates $secondNewEvent on the server and returns array(0, 'etag of second event').
$etagOfSecondEvent = $ret[1];
$ret = simpleCalDAVgetByUID($client, 'ExampleUID1');
// Returns array(0, array(array( 'href'=>'something.ics', 'data'=>$firstNewEvent, 'etag'=>'etag of first event'))).
$ret = simpleCalDAVgetEventsByTime($client, '20140418T103000Z', '20140419T200000Z');
/* Returns array(0, array(
* array( 'href'=>'something.ics', 'data'=>$firstNewEvent, 'etag'=>'etag of first event'),
* array( 'href'=>'someOtherThing.ics', 'data'=>$secondNewEvent, 'etag'=>'etag of second event'))).
*/
$ret = simpleCalDAVchange($client, $changedFirstEvent, $etagOfFirstEvent);
// Change the first event on the server from $firstNewEvent to $changedFirstEvent
$etagOfFirstEvent = $ret[1];
// and return array(0, 'new etag of first event').
$ret = simpleCalDAVgetByUID($client, 'ExampleUID1');
// Returns array(0, array( 'href'=>'something.ics', 'data'=>$changedFirstEvent, 'etag'=>'new etag of first event')).
$ret = simpleCalDAVgetEventsByTime($client, '20140418T103000Z', '20140419T200000Z');
// Returns array(0, array(array( 'href'=>'someOtherThing.ics', 'data'=>$secondNewEvent, 'etag'=>'etag of second event'))).
$ret = simpleCalDAVdelete($client, 'ExampleUID2', $etagOfSecondEvent);
// Deletes the second event from the server and returns array(0).
$ret = simpleCalDAVgetEventsByTime($client, '20140418T103000Z', '20140419T200000Z');
// Returns array(0, array()).
} else {
echo '<pre>';
echo $ret[1] . '<br><br>';
echo 'Request-Header:<br>' . $ret[2] . '<br><br>';
echo 'Request-Body:<br>' . htmlentities($ret[3]) . '<br><br>';
echo 'Resonse-Header:<br>' . $ret[4] . '<br><br>';
echo 'XML-Response-Body:<br>' . htmlentities($ret[5]);
echo '</pre>';
