322 lines
10 KiB
PHP
322 lines
10 KiB
PHP
<?php
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class OC_Connector_Sabre_CalDAV extends Sabre_CalDAV_Backend_Abstract {
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/**
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* List of CalDAV properties, and how they map to database fieldnames
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*
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* Add your own properties by simply adding on to this array
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*
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* @var array
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*/
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public $propertyMap = array(
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'{DAV:}displayname' => 'displayname',
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'{urn:ietf:params:xml:ns:caldav}calendar-timezone' => 'timezone',
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'{http://apple.com/ns/ical/}calendar-order' => 'calendarorder',
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'{http://apple.com/ns/ical/}calendar-color' => 'calendarcolor',
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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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$raw = OC_Calendar_Calendar::allCalendarsWherePrincipalURIIs($principalUri);
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$calendars = array();
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foreach( $raw as $row ) {
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$components = explode(',',$row['components']);
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if($row['userid'] != OCP\USER::getUser()) {
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$row['uri'] = $row['uri'] . '_shared_by_' . $row['userid'];
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}
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$calendar = array(
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'id' => $row['id'],
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'uri' => $row['uri'],
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'principaluri' => 'principals/'.$row['userid'],
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'{' . Sabre_CalDAV_Plugin::NS_CALENDARSERVER . '}getctag' => $row['ctag']?$row['ctag']:'0',
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'{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}supported-calendar-component-set' => new Sabre_CalDAV_Property_SupportedCalendarComponentSet($components),
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);
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foreach($this->propertyMap as $xmlName=>$dbName) {
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$calendar[$xmlName] = $row[$dbName];
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}
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$calendars[] = $calendar;
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}
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return $calendars;
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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 $properties
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* @return mixed
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*/
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public function createCalendar($principalUri,$calendarUri, array $properties) {
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$fieldNames = array(
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'principaluri',
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'uri',
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'ctag',
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);
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$values = array(
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':principaluri' => $principalUri,
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':uri' => $calendarUri,
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':ctag' => 1,
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);
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// Default value
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$sccs = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set';
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$fieldNames[] = 'components';
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if (!isset($properties[$sccs])) {
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$values[':components'] = 'VEVENT,VTODO';
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} else {
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if (!($properties[$sccs] instanceof Sabre_CalDAV_Property_SupportedCalendarComponentSet)) {
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throw new Sabre_DAV_Exception('The ' . $sccs . ' property must be of type: Sabre_CalDAV_Property_SupportedCalendarComponentSet');
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}
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$values[':components'] = implode(',',$properties[$sccs]->getValue());
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}
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foreach($this->propertyMap as $xmlName=>$dbName) {
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if (isset($properties[$xmlName])) {
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$myValue = $properties[$xmlName];
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$values[':' . $dbName] = $properties[$xmlName];
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$fieldNames[] = $dbName;
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}
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}
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if(!isset($newValues['displayname'])) $newValues['displayname'] = 'unnamed';
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if(!isset($newValues['components'])) $newValues['components'] = 'VEVENT,VTODO';
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if(!isset($newValues['timezone'])) $newValues['timezone'] = null;
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if(!isset($newValues['calendarorder'])) $newValues['calendarorder'] = 0;
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if(!isset($newValues['calendarcolor'])) $newValues['calendarcolor'] = null;
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if(!is_null($newValues['calendarcolor']) && strlen($newValues['calendarcolor']) == 9) {
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$newValues['calendarcolor'] = substr($newValues['calendarcolor'], 0, 7);
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}
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return OC_Calendar_Calendar::addCalendarFromDAVData($principalUri,$calendarUri,$newValues['displayname'],$newValues['components'],$newValues['timezone'],$newValues['calendarorder'],$newValues['calendarcolor']);
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}
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/**
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* Updates a calendars properties
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*
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* The properties 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-existant property is always succesful.
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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 $properties
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* @return bool|array
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*/
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public function updateCalendar($calendarId, array $properties) {
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$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($properties 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][$propertyName] = null;
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unset($properties[$propertyName]);
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continue;
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}
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$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($properties 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 $result;
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}
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// Success
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if(!isset($newValues['displayname'])) $newValues['displayname'] = null;
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if(!isset($newValues['timezone'])) $newValues['timezone'] = null;
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if(!isset($newValues['calendarorder'])) $newValues['calendarorder'] = null;
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if(!isset($newValues['calendarcolor'])) $newValues['calendarcolor'] = null;
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if(!is_null($newValues['calendarcolor']) && strlen($newValues['calendarcolor']) == 9) {
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$newValues['calendarcolor'] = substr($newValues['calendarcolor'], 0, 7);
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}
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OC_Calendar_Calendar::editCalendar($calendarId,$newValues['displayname'],null,$newValues['timezone'],$newValues['calendarorder'],$newValues['calendarcolor']);
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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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if(preg_match( '=iCal/[1-4]?.*Mac OS X/10.[1-6](.[0-9])?=', $_SERVER['HTTP_USER_AGENT'] )) {
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throw new Sabre_DAV_Exception_Forbidden("Action is not possible with OSX 10.6.x", 403);
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}
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OC_Calendar_Calendar::deleteCalendar($calendarId);
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}
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/**
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* Returns all calendar objects within a calendar object.
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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 calnedar 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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*
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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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* @param string $calendarId
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* @return array
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*/
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public function getCalendarObjects($calendarId) {
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$data = array();
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foreach(OC_Calendar_Object::all($calendarId) as $row) {
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$data[] = $this->OCAddETag($row);
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}
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return $data;
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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 $objectUri
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* @return array
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*/
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public function getCalendarObject($calendarId,$objectUri) {
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$data = OC_Calendar_Object::findWhereDAVDataIs($calendarId,$objectUri);
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if(is_array($data)) {
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$data = $this->OCAddETag($data);
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}
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return $data;
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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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* @param string $calendarId
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* @param string $objectUri
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* @param string $calendarData
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* @return void
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*/
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public function createCalendarObject($calendarId,$objectUri,$calendarData) {
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OC_Calendar_Object::addFromDAVData($calendarId,$objectUri,$calendarData);
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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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* @param string $calendarId
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* @param string $objectUri
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* @param string $calendarData
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* @return void
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*/
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public function updateCalendarObject($calendarId,$objectUri,$calendarData) {
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OC_Calendar_Object::editFromDAVData($calendarId,$objectUri,$calendarData);
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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 $objectUri
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* @return void
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*/
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public function deleteCalendarObject($calendarId,$objectUri) {
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OC_Calendar_Object::deleteFromDAVData($calendarId,$objectUri);
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}
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/**
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* @brief Creates a etag
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* @param array $row Database result
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* @returns associative array
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*
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* Adds a key "etag" to the row
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*/
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private function OCAddETag($row) {
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$row['etag'] = '"'.md5($row['calendarid'].$row['uri'].$row['calendardata'].$row['lastmodified']).'"';
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return $row;
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}
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}
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