forked from friendica/friendica-addons
495 lines
16 KiB
PHP
495 lines
16 KiB
PHP
<?php
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class Sabre_CalDAV_Backend_Private extends Sabre_CalDAV_Backend_Common
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{
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/**
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* @var null|Sabre_CalDAV_Backend_Private
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*/
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private static $instance = null;
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/**
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* @static
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* @return Sabre_CalDAV_Backend_Private
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*/
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public static function getInstance()
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{
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if (self::$instance == null) {
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self::$instance = new Sabre_CalDAV_Backend_Private();
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}
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return self::$instance;
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}
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/**
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* @return int
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*/
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public function getNamespace()
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{
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return CALDAV_NAMESPACE_PRIVATE;
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}
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/**
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* @obsolete
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* @param array $calendar
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* @param int $user
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* @return array
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*/
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public function getPermissionsCalendar($calendar, $user)
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{
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if ($calendar["namespace"] == CALDAV_NAMESPACE_PRIVATE && $user == $calendar["namespace_id"]) return array("read"=> true, "write"=> true);
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return array("read"=> false, "write"=> false);
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}
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/**
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* @obsolete
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* @param array $calendar
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* @param int $user
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* @param string $calendarobject_id
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* @param null|array $item_arr
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* @return array
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*/
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public function getPermissionsItem($calendar, $user, $calendarobject_id, $item_arr = null)
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{
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return $this->getPermissionsCalendar($calendar, $user);
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}
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/**
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* @param array $row
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* @param array $calendar
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* @param string $base_path
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* @return array
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*/
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private function jqcal2wdcal($row, $calendar, $base_path)
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{
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$not = q("SELECT COUNT(*) num FROM %s%snotifications WHERE `calendar_id` = %d AND `calendarobject_id` = %d",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($row["calendar_id"]), IntVal($row["calendarobject_id"])
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);
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$editable = $this->getPermissionsItem($calendar["namespace_id"], $row["calendarobject_id"], $row);
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$end = wdcal_mySql2PhpTime($row["EndTime"]);
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if ($row["IsAllDayEvent"]) $end -= 1;
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return array(
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"jq_id" => $row["id"],
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"ev_id" => $row["calendarobject_id"],
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"summary" => escape_tags($row["Summary"]),
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"start" => wdcal_mySql2PhpTime($row["StartTime"]),
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"end" => $end,
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"is_allday" => $row["IsAllDayEvent"],
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"is_moredays" => 0,
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"is_recurring" => $row["IsRecurring"],
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"color" => (is_null($row["Color"]) || $row["Color"] == "" ? $calendar["calendarcolor"] : $row["Color"]),
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"is_editable" => ($editable ? 1 : 0),
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"is_editable_quick" => ($editable && !$row["IsRecurring"] ? 1 : 0),
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"location" => "Loc.",
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"attendees" => '',
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"has_notification" => ($not[0]["num"] > 0 ? 1 : 0),
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"url_detail" => $base_path . $row["calendarobject_id"] . "/",
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"url_edit" => $base_path . $row["calendarobject_id"] . "/edit/",
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"special_type" => "",
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);
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}
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/**
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* @param int $calendarId
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* @param string $sd
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* @param string $ed
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* @param string $base_path
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* @return array
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*/
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public function listItemsByRange($calendarId, $sd, $ed, $base_path)
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{
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$calendar = Sabre_CalDAV_Backend_Common::loadCalendarById($calendarId);
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$von = wdcal_php2MySqlTime($sd);
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$bis = wdcal_php2MySqlTime($ed);
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// @TODO Events, die früher angefangen haben, aber noch andauern
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$evs = q("SELECT * FROM %s%sjqcalendar WHERE `calendar_id` = %d AND `starttime` between '%s' and '%s'",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX,
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IntVal($calendarId), dbesc($von), dbesc($bis));
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$events = array();
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foreach ($evs as $row) $events[] = $this->jqcal2wdcal($row, $calendar, $base_path . $row["calendar_id"] . "/");
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return $events;
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}
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/**
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* @param int $calendar_id
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* @param int $calendarobject_id
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* @return string
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*/
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public function getItemDetailRedirect($calendar_id, $calendarobject_id)
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{
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return "/dav/wdcal/$calendar_id/$calendarobject_id/edit/";
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}
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/**
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* Returns a list of calendars for a principal.
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*
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* Every project is an array with the following keys:
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* * id, a unique id that will be used by other functions to modify the
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* calendar. This can be the same as the uri or a database key.
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* * uri, which the basename of the uri with which the calendar is
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* accessed.
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* * principaluri. The owner of the calendar. Almost always the same as
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* principalUri passed to this method.
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*
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* Furthermore it can contain webdav properties in clark notation. A very
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* common one is '{DAV:}displayname'.
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*
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* @param string $principalUri
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* @return array
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*/
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public function getCalendarsForUser($principalUri)
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{
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$n = dav_compat_principal2namespace($principalUri);
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if ($n["namespace"] != $this->getNamespace()) return array();
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$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"]));
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$ret = array();
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foreach ($cals as $cal) {
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if (in_array($cal["uri"], $GLOBALS["CALDAV_PRIVATE_SYSTEM_CALENDARS"])) continue;
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$dat = array(
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"id" => $cal["id"],
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"uri" => $cal["uri"],
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"principaluri" => $principalUri,
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'{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}getctag' => $cal['ctag'] ? $cal['ctag'] : '0',
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"calendar_class" => "Sabre_CalDAV_Calendar",
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);
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foreach ($this->propertyMap as $key=> $field) $dat[$key] = $cal[$field];
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$ret[] = $dat;
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}
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return $ret;
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}
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/**
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* Creates a new calendar for a principal.
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*
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* If the creation was a success, an id must be returned that can be used to reference
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* this calendar in other methods, such as updateCalendar.
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*
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* @param string $principalUri
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* @param string $calendarUri
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* @param array $properties
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* @throws Sabre_DAV_Exception
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* @return string|void
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*/
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public function createCalendar($principalUri, $calendarUri, array $properties)
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{
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$uid = dav_compat_principal2uid($principalUri);
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$r = q("SELECT * FROM %s%scalendars WHERE `namespace` = %d AND `namespace_id` = %d AND `uri` = '%s'", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, CALDAV_NAMESPACE_PRIVATE, $uid, dbesc($calendarUri));
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if (count($r) > 0) throw new Sabre_DAV_Exception("A calendar with this URI already exists");
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$keys = array("`namespace`", "`namespace_id`", "`ctag`", "`uri`");
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$vals = array(CALDAV_NAMESPACE_PRIVATE, IntVal($uid), 1, "'" . dbesc($calendarUri) . "'");
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// Default value
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$sccs = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set';
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$has_vevent = $has_vtodo = 1;
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if (isset($properties[$sccs])) {
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if (!($properties[$sccs] instanceof Sabre_CalDAV_Property_SupportedCalendarComponentSet)) {
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throw new Sabre_DAV_Exception('The ' . $sccs . ' property must be of type: Sabre_CalDAV_Property_SupportedCalendarComponentSet');
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}
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$v = $properties[$sccs]->getValue();
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$has_vevent = $has_vtodo = 0;
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foreach ($v as $w) {
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if (mb_strtolower($w) == "vevent") $has_vevent = 1;
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if (mb_strtolower($w) == "vtodo") $has_vtodo = 1;
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}
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}
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$keys[] = "`has_vevent`";
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$keys[] = "`has_vtodo`";
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$vals[] = $has_vevent;
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$vals[] = $has_vtodo;
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foreach ($this->propertyMap as $xmlName=> $dbName) {
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if (isset($properties[$xmlName])) {
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$keys[] = "`$dbName`";
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$vals[] = "'" . dbesc($properties[$xmlName]) . "'";
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}
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}
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$sql = sprintf("INSERT INTO %s%scalendars (" . implode(', ', $keys) . ") VALUES (" . implode(', ', $vals) . ")", CALDAV_SQL_DB, CALDAV_SQL_PREFIX);
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q($sql);
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$x = q("SELECT id FROM %s%scalendars WHERE `namespace` = %d AND `namespace_id` = %d AND `uri` = '%s'",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, CALDAV_NAMESPACE_PRIVATE, $uid, $calendarUri
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);
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return $x[0]["id"];
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}
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/**
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* Updates properties for a calendar.
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*
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* The mutations array uses the propertyName in clark-notation as key,
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* and the array value for the property value. In the case a property
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* should be deleted, the property value will be null.
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*
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* This method must be atomic. If one property cannot be changed, the
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* entire operation must fail.
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*
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* If the operation was successful, true can be returned.
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* If the operation failed, false can be returned.
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*
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* Deletion of a non-existent property is always successful.
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*
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* Lastly, it is optional to return detailed information about any
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* failures. In this case an array should be returned with the following
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* structure:
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*
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* array(
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* 403 => array(
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* '{DAV:}displayname' => null,
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* ),
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* 424 => array(
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* '{DAV:}owner' => null,
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* )
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* )
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*
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* In this example it was forbidden to update {DAV:}displayname.
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* (403 Forbidden), which in turn also caused {DAV:}owner to fail
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* (424 Failed Dependency) because the request needs to be atomic.
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*
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* @param string $calendarId
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* @param array $mutations
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* @return bool|array
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*/
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public function updateCalendar($calendarId, array $mutations)
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{
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$newValues = array();
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$result = array(
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200 => array(), // Ok
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403 => array(), // Forbidden
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424 => array(), // Failed Dependency
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);
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$hasError = false;
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foreach ($mutations as $propertyName=> $propertyValue) {
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// We don't know about this property.
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if (!isset($this->propertyMap[$propertyName])) {
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$hasError = true;
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$result[403][$propertyName] = null;
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unset($mutations[$propertyName]);
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continue;
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}
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$fieldName = $this->propertyMap[$propertyName];
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$newValues[$fieldName] = $propertyValue;
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}
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// If there were any errors we need to fail the request
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if ($hasError) {
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// Properties has the remaining properties
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foreach ($mutations as $propertyName=> $propertyValue) {
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$result[424][$propertyName] = null;
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}
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// Removing unused statuscodes for cleanliness
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foreach ($result as $status=> $properties) {
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if (is_array($properties) && count($properties) === 0) unset($result[$status]);
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}
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return $result;
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}
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$sql = "`ctag` = `ctag` + 1";
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foreach ($newValues as $key=> $val) $sql .= ", `" . $key . "` = '" . dbesc($val) . "'";
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$sql = sprintf("UPDATE %s%scalendars SET $sql WHERE `id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($calendarId));
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q($sql);
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return true;
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}
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/**
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* Delete a calendar and all it's objects
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*
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* @param string $calendarId
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* @return void
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*/
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public function deleteCalendar($calendarId)
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{
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q("DELETE FROM %s%scalendarobjects WHERE `calendar_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($calendarId));
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q("DELETE FROM %s%scalendars WHERE `id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($calendarId));
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}
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/**
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* Returns all calendar objects within a calendar.
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*
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* Every item contains an array with the following keys:
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* * id - unique identifier which will be used for subsequent updates
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* * calendardata - The iCalendar-compatible calendar data
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* * uri - a unique key which will be used to construct the uri. This can be any arbitrary string.
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* * lastmodified - a timestamp of the last modification time
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* * etag - An arbitrary string, surrounded by double-quotes. (e.g.:
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* ' "abcdef"')
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* * calendarid - The calendarid as it was passed to this function.
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* * size - The size of the calendar objects, in bytes.
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*
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* Note that the etag is optional, but it's highly encouraged to return for
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* speed reasons.
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*
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* The calendardata is also optional. If it's not returned
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* 'getCalendarObject' will be called later, which *is* expected to return
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* calendardata.
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*
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* If neither etag or size are specified, the calendardata will be
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* used/fetched to determine these numbers. If both are specified the
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* amount of times this is needed is reduced by a great degree.
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*
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* @param mixed $calendarId
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* @return array
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*/
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function getCalendarObjects($calendarId)
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{
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$objs = q("SELECT * FROM %s%scalendarobjects WHERE `calendar_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($calendarId));
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$ret = array();
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foreach ($objs as $obj) {
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$ret[] = array(
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"id" => IntVal($obj["id"]),
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"calendardata" => $obj["calendardata"],
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"uri" => $obj["uri"],
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"lastmodified" => $obj["lastmodified"],
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"calendarid" => $calendarId,
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"etag" => $obj["etag"],
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"size" => IntVal($obj["size"]),
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);
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}
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return $ret;
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}
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/**
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* Returns information from a single calendar object, based on it's object
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* uri.
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*
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* The returned array must have the same keys as getCalendarObjects. The
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* 'calendardata' object is required here though, while it's not required
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* for getCalendarObjects.
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*
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* @param string $calendarId
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* @param string $objectUri
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* @throws Sabre_DAV_Exception_NotFound
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* @return array
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*/
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function getCalendarObject($calendarId, $objectUri)
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{
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$o = q("SELECT * FROM %s%scalendarobjects WHERE `calendar_id` = %d AND `uri` = '%s'",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($calendarId), dbesc($objectUri));
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if (count($o) > 0) {
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$o[0]["calendarid"] = $calendarId;
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$o[0]["calendardata"] = str_ireplace("Europe/Belgrade", "Europe/Berlin", $o[0]["calendardata"]);
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return $o[0];
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} else throw new Sabre_DAV_Exception_NotFound($calendarId . " / " . $objectUri);
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}
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/**
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* Creates a new calendar object.
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*
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* It is possible return an etag from this function, which will be used in
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* the response to this PUT request. Note that the ETag must be surrounded
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* by double-quotes.
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*
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* However, you should only really return this ETag if you don't mangle the
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* calendar-data. If the result of a subsequent GET to this object is not
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* the exact same as this request body, you should omit the ETag.
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*
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* @param mixed $calendarId
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* @param string $objectUri
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* @param string $calendarData
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* @return string|null
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*/
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function createCalendarObject($calendarId, $objectUri, $calendarData)
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{
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$calendarData = icalendar_sanitize_string($calendarData);
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$extraData = $this->getDenormalizedData($calendarData);
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q("INSERT INTO %s%scalendarobjects (`calendar_id`, `uri`, `calendardata`, `lastmodified`, `componentType`, `firstOccurence`, `lastOccurence`, `etag`, `size`)
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VALUES (%d, '%s', '%s', NOW(), '%s', '%s', '%s', '%s', %d)",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($calendarId), dbesc($objectUri), addslashes($calendarData), dbesc($extraData['componentType']),
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dbesc(wdcal_php2MySqlTime($extraData['firstOccurence'])), dbesc(wdcal_php2MySqlTime($extraData['lastOccurence'])), dbesc($extraData["etag"]), IntVal($extraData["size"])
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);
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$this->increaseCalendarCtag($calendarId);
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renderCalDavEntry_uri($objectUri);
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return '"' . $extraData['etag'] . '"';
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}
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/**
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* Updates an existing calendarobject, based on it's uri.
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*
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* It is possible return an etag from this function, which will be used in
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* the response to this PUT request. Note that the ETag must be surrounded
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* by double-quotes.
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*
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* However, you should only really return this ETag if you don't mangle the
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* calendar-data. If the result of a subsequent GET to this object is not
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* the exact same as this request body, you should omit the ETag.
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*
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* @param mixed $calendarId
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* @param string $objectUri
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* @param string $calendarData
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* @return string|null
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*/
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function updateCalendarObject($calendarId, $objectUri, $calendarData)
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{
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$calendarData = icalendar_sanitize_string($calendarData);
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$extraData = $this->getDenormalizedData($calendarData);
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q("UPDATE %s%scalendarobjects SET `calendardata` = '%s', `lastmodified` = NOW(), `etag` = '%s', `size` = %d, `componentType` = '%s', `firstOccurence` = '%s', `lastOccurence` = '%s'
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WHERE `calendar_id` = %d AND `uri` = '%s'",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, dbesc($calendarData), dbesc($extraData["etag"]), IntVal($extraData["size"]), dbesc($extraData["componentType"]),
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dbesc(wdcal_php2MySqlTime($extraData["firstOccurence"])), dbesc(wdcal_php2MySqlTime($extraData["lastOccurence"])), IntVal($calendarId), dbesc($objectUri));
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$this->increaseCalendarCtag($calendarId);
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renderCalDavEntry_uri($objectUri);
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return '"' . $extraData['etag'] . '"';
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}
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/**
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* Deletes an existing calendar object.
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*
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* @param string $calendarId
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* @param string $objectUri
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* @throws Sabre_DAV_Exception_NotFound
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* @return void
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*/
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function deleteCalendarObject($calendarId, $objectUri)
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{
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$r = q("SELECT `id` FROM %s%scalendarobjects WHERE `calendar_id` = %d AND `uri` = '%s'", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($calendarId), dbesc($objectUri));
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if (count($r) == 0) throw new Sabre_DAV_Exception_NotFound();
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q("DELETE FROM %s%scalendarobjects WHERE `calendar_id` = %d AND `uri` = '%s'", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($calendarId), dbesc($objectUri));
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$this->increaseCalendarCtag($calendarId);
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renderCalDavEntry_calobj_id($r[0]["id"]);
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}
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}
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