friendica-addons/dav/dav_caldav_backend_virtual_friendica.inc.php

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<?php
class Sabre_CalDAV_Backend_Friendica extends Sabre_CalDAV_Backend_Virtual
{
/**
* @var null|Sabre_CalDAV_Backend_Friendica
*/
private static $instance = null;
/**
* @static
* @return Sabre_CalDAV_Backend_Friendica
*/
public static function getInstance()
{
if (self::$instance == null) {
self::$instance = new Sabre_CalDAV_Backend_Friendica();
}
return self::$instance;
}
/**
* @return int
*/
public function getNamespace()
{
return CALDAV_NAMESPACE_PRIVATE;
}
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/**
* @static
* @return string
*/
public static function getBackendTypeName() {
return t("Friendica-Native events");
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}
/**
* @static
* @param int $calendarId
* @throws Sabre_DAV_Exception_NotFound
* @return void
*/
protected static function createCache_internal($calendarId)
{
$calendar = Sabre_CalDAV_Backend_Common::loadCalendarById($calendarId);
switch ($calendar["uri"]) {
case CALDAV_FRIENDICA_MINE:
$sql_where = " AND cid = 0";
break;
case CALDAV_FRIENDICA_CONTACTS:
$sql_where = " AND cid > 0";
break;
default:
throw new Sabre_DAV_Exception_NotFound();
}
$r = q("SELECT * FROM `event` WHERE `uid` = %d " . $sql_where . " ORDER BY `start`", IntVal($calendar["namespace_id"]));
foreach ($r as $row) {
$uid = $calendar["uri"] . "-" . $row["id"];
$vevent = dav_create_empty_vevent($uid);
$component = dav_get_eventComponent($vevent);
if ($row["adjust"]) {
$start = datetime_convert('UTC', date_default_timezone_get(), $row["start"]);
$finish = datetime_convert('UTC', date_default_timezone_get(), $row["finish"]);
} else {
$start = $row["start"];
$finish = $row["finish"];
}
$summary = ($row["summary"] != "" ? $row["summary"] : $row["desc"]);
$desc = ($row["summary"] != "" ? $row["desc"] : "");
$component->add("SUMMARY", icalendar_sanitize_string($summary));
$component->add("LOCATION", icalendar_sanitize_string($row["location"]));
$component->add("DESCRIPTION", icalendar_sanitize_string($desc));
$ts_start = wdcal_mySql2PhpTime($start);
$ts_end = wdcal_mySql2PhpTime($start);
$allday = (strpos($start, "00:00:00") !== false && strpos($finish, "00:00:00") !== false);
$type = ($allday ? Sabre_VObject_Property_DateTime::DATE : Sabre_VObject_Property_DateTime::LOCALTZ);
$datetime_start = new Sabre_VObject_Property_DateTime("DTSTART");
$datetime_start->setDateTime(new DateTime(date("Y-m-d H:i:s", $ts_start)), $type);
$datetime_end = new Sabre_VObject_Property_DateTime("DTEND");
$datetime_end->setDateTime(new DateTime(date("Y-m-d H:i:s", $ts_end)), $type);
$component->add($datetime_start);
$component->add($datetime_end);
$data = $vevent->serialize();
q("INSERT INTO %s%scal_virtual_object_cache (`calendar_id`, `data_uri`, `data_summary`, `data_location`, `data_start`, `data_end`, `data_allday`, `data_type`,
`calendardata`, `size`, `etag`) VALUES (%d, '%s', '%s', '%s', '%s', '%s', %d, '%s', '%s', %d, '%s')",
CALDAV_SQL_DB, CALDAV_SQL_PREFIX, $calendarId, dbesc($uid), dbesc($summary), dbesc($row["location"]), dbesc($row["start"]), dbesc($row["finish"]),
($allday ? 1 : 0), dbesc(($row["type"] == "birthday" ? "birthday" : "")), dbesc($data), strlen($data), md5($data));
}
}
/**
* @param array $row
* @param array $calendar
* @param string $base_path
* @return array
*/
private function jqcal2wdcal($row, $calendar, $base_path)
{
if ($row["adjust"]) {
$start = datetime_convert('UTC', date_default_timezone_get(), $row["start"]);
$finish = datetime_convert('UTC', date_default_timezone_get(), $row["finish"]);
} else {
$start = $row["start"];
$finish = $row["finish"];
}
$allday = (strpos($start, "00:00:00") !== false && strpos($finish, "00:00:00") !== false);
$summary = (($row["summary"]) ? $row["summary"] : substr(preg_replace("/\[[^\]]*\]/", "", $row["desc"]), 0, 100));
return array(
"jq_id" => $row["id"],
"ev_id" => $row["id"],
"summary" => escape_tags($summary),
"start" => wdcal_mySql2PhpTime($start),
"end" => wdcal_mySql2PhpTime($finish),
"is_allday" => ($allday ? 1 : 0),
"is_moredays" => (substr($start, 0, 10) != substr($finish, 0, 10)),
"is_recurring" => ($row["type"] == "birthday"),
"color" => "7878ff",
"is_editable" => 0,
"is_editable_quick" => 0,
"location" => $row["location"],
"attendees" => '',
"has_notification" => 0,
"url_detail" => $base_path . "/events/event/" . $row["id"],
"url_edit" => "",
"special_type" => ($row["type"] == "birthday" ? "birthday" : ""),
);
}
/**
* @param int $calendarId
* @param string $date_from
* @param string $date_to
* @param string $base_path
* @throws Sabre_DAV_Exception_NotFound
* @return array
*/
public function listItemsByRange($calendarId, $date_from, $date_to, $base_path)
{
$calendar = Sabre_CalDAV_Backend_Common::loadCalendarById($calendarId);
if ($calendar["namespace"] != CALDAV_NAMESPACE_PRIVATE) throw new Sabre_DAV_Exception_NotFound();
switch ($calendar["uri"]) {
case CALDAV_FRIENDICA_MINE:
$sql_where = " AND cid = 0";
break;
case CALDAV_FRIENDICA_CONTACTS:
$sql_where = " AND cid > 0";
break;
default:
throw new Sabre_DAV_Exception_NotFound();
}
if ($date_from != "") {
if (is_numeric($date_from)) $sql_where .= " AND `finish` >= '" . date("Y-m-d H:i:s", $date_from) . "'";
else $sql_where .= " AND `finish` >= '" . dbesc($date_from) . "'";
}
if ($date_to != "") {
if (is_numeric($date_to)) $sql_where .= " AND `start` <= '" . date("Y-m-d H:i:s", $date_to) . "'";
else $sql_where .= " AND `start` <= '" . dbesc($date_to) . "'";
}
$ret = array();
$r = q("SELECT * FROM `event` WHERE `uid` = %d " . $sql_where . " ORDER BY `start`", IntVal($calendar["namespace_id"]));
$a = get_app();
foreach ($r as $row) {
$r = $this->jqcal2wdcal($row, $calendar, $a->get_baseurl());
$r["calendar_id"] = $calendar["id"];
$ret[] = $r;
}
return $ret;
}
/**
* Returns a list of calendars for a principal.
*
* Every project is an array with the following keys:
* * id, a unique id that will be used by other functions to modify the
* calendar. This can be the same as the uri or a database key.
* * uri, which the basename of the uri with which the calendar is
* accessed.
* * principaluri. The owner of the calendar. Almost always the same as
* principalUri passed to this method.
*
* Furthermore it can contain webdav properties in clark notation. A very
* common one is '{DAV:}displayname'.
*
* @param string $principalUri
* @return array
*/
public function getCalendarsForUser($principalUri)
{
$n = dav_compat_principal2namespace($principalUri);
if ($n["namespace"] != $this->getNamespace()) return array();
$cals = q("SELECT * FROM %s%scalendars WHERE `namespace` = %d AND `namespace_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, $this->getNamespace(), IntVal($n["namespace_id"]));
$ret = array();
foreach ($cals as $cal) {
if (!in_array($cal["uri"], $GLOBALS["CALDAV_PRIVATE_SYSTEM_CALENDARS"])) continue;
$dat = array(
"id" => $cal["id"],
"uri" => $cal["uri"],
"principaluri" => $principalUri,
'{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}getctag' => $cal['ctag'] ? $cal['ctag'] : '0',
'{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}supported-calendar-component-set' => new Sabre_CalDAV_Property_SupportedCalendarComponentSet(array("VEVENT")),
"calendar_class" => "Sabre_CalDAV_Calendar_Virtual",
);
foreach ($this->propertyMap as $key=> $field) $dat[$key] = $cal[$field];
$ret[] = $dat;
}
return $ret;
}
/**
* @param int $calendar_id
* @param int $calendarobject_id
* @return string
*/
function getItemDetailRedirect($calendar_id, $calendarobject_id)
{
$a = get_app();
$item = q("SELECT `id` FROM `item` WHERE `event-id` = %d AND `uid` = %d AND deleted = 0", IntVal($calendarobject_id), $a->user["uid"]);
if (count($item) == 0) return "/events/";
return "/display/" . $a->user["nickname"] . "/" . IntVal($item[0]["id"]);
}
}