friendica-addons/dav/common/dav_caldav_backend_virtual.inc.php

187 lines
4.8 KiB
PHP

<?php
abstract class Sabre_CalDAV_Backend_Virtual extends Sabre_CalDAV_Backend_Common
{
/**
* @static
* @abstract
* @param int $calendarId
* @param string $uri
* @return array
*/
/*
abstract public function getItemsByUri($calendarId, $uri);
*/
/**
* @static
* @param int $uid
* @param int $namespace
*/
static public function invalidateCache($uid = 0, $namespace = 0) {
q("DELETE FROM %s%scal_virtual_object_sync WHERE `uid` = %d AND `namespace` = %d",
CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($uid), IntVal($namespace));
}
/**
* @static
* @abstract
* @param int $calendarId
*/
static abstract protected function createCache_internal($calendarId);
/**
* @static
* @param int $calendarId
*/
static protected function createCache($calendarId) {
$calendarId = IntVal($calendarId);
q("DELETE FROM %s%scal_virtual_object_cache WHERE `calendar_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, $calendarId);
static::createCache_internal($calendarId);
q("REPLACE INTO %s%scal_virtual_object_sync (`calendar_id`, `date`) VALUES (%d, NOW())", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, $calendarId);
}
/**
* @param string $calendarId
* @return array
*/
public function getCalendarObjects($calendarId)
{
$calendarId = IntVal($calendarId);
$r = q("SELECT COUNT(*) n FROM %s%scal_virtual_object_sync WHERE `calendar_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, $calendarId);
if ($r[0]["n"] == 0) static::createCache($calendarId);
$r = q("SELECT * FROM %s%scal_virtual_object_cache WHERE `calendar_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, $calendarId);
$ret = array();
foreach ($r as $obj) {
$ret[] = array(
"id" => IntVal($obj["data_uri"]),
"calendardata" => $obj["calendardata"],
"uri" => $obj["data_uri"],
"lastmodified" => $obj["date"],
"calendarid" => $calendarId,
"etag" => $obj["etag"],
"size" => IntVal($obj["size"]),
);
}
return $ret;
}
/**
* Returns information from a single calendar object, based on it's object
* uri.
*
* The returned array must have the same keys as getCalendarObjects. The
* 'calendardata' object is required here though, while it's not required
* for getCalendarObjects.
*
* @param string $calendarId
* @param string $objectUri
* @throws Sabre_DAV_Exception_NotFound
* @return array
*/
public function getCalendarObject($calendarId, $objectUri)
{
$calendarId = IntVal($calendarId);
$r = q("SELECT COUNT(*) n FROM %s%scal_virtual_object_sync WHERE `calendar_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($calendarId));
if ($r[0]["n"] == 0) static::createCache($calendarId);
$r = q("SELECT * FROM %s%scal_virtual_object_cache WHERE `data_uri` = '%s' AND `calendar_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, dbesc($objectUri), IntVal($calendarId));
if (count($r) == 0) throw new Sabre_DAV_Exception_NotFound();
$obj = $r[0];
$ret = array(
"id" => IntVal($obj["data_uri"]),
"calendardata" => $obj["calendardata"],
"uri" => $obj["data_uri"],
"lastmodified" => $obj["date"],
"calendarid" => $calendarId,
"etag" => $obj["etag"],
"size" => IntVal($obj["size"]),
);
return $ret;
}
/**
* Creates a new calendar for a principal.
*
* If the creation was a success, an id must be returned that can be used to reference
* this calendar in other methods, such as updateCalendar.
*
* @param string $principalUri
* @param string $calendarUri
* @param array $properties
* @throws Sabre_DAV_Exception_Forbidden
* @return void
*/
public function createCalendar($principalUri, $calendarUri, array $properties)
{
throw new Sabre_DAV_Exception_Forbidden();
}
/**
* Delete a calendar and all it's objects
*
* @param string $calendarId
* @throws Sabre_DAV_Exception_Forbidden
* @return void
*/
public function deleteCalendar($calendarId)
{
throw new Sabre_DAV_Exception_Forbidden();
}
/**
* Creates a new calendar object.
*
* @param string $calendarId
* @param string $objectUri
* @param string $calendarData
* @throws Sabre_DAV_Exception_Forbidden
* @return null|string|void
*/
function createCalendarObject($calendarId, $objectUri, $calendarData)
{
throw new Sabre_DAV_Exception_Forbidden();
}
/**
* Updates an existing calendarobject, based on it's uri.
*
* @param string $calendarId
* @param string $objectUri
* @param string $calendarData
* @throws Sabre_DAV_Exception_Forbidden
* @return null|string|void
*/
function updateCalendarObject($calendarId, $objectUri, $calendarData)
{
throw new Sabre_DAV_Exception_Forbidden();
}
/**
* Deletes an existing calendar object.
*
* @param string $calendarId
* @param string $objectUri
* @throws Sabre_DAV_Exception_Forbidden
* @return void
*/
function deleteCalendarObject($calendarId, $objectUri)
{
throw new Sabre_DAV_Exception_Forbidden();
}
}