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

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