292 lines
8.1 KiB
PHP
292 lines
8.1 KiB
PHP
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<?php
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/**
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* ownCloud - Calendar
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*
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* @author Jakob Sack
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* @copyright 2011 Jakob Sack mail@jakobsack.de
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* This class manages our calendars
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*/
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class OC_Calendar_Object{
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/**
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* @brief Returns all objects of a calendar
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* @param integer $id
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* @return array
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*
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* The objects are associative arrays. You'll find the original vObject in
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* ['calendardata']
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*/
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public static function all($id){
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$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*calendar_objects WHERE calendarid = ?' );
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$result = $stmt->execute(array($id));
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$calendarobjects = array();
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while( $row = $result->fetchRow()){
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$calendarobjects[] = $row;
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}
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return $calendarobjects;
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}
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/**
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* @brief Returns an object
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* @param integer $id
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* @return associative array
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*/
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public static function find($id){
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$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*calendar_objects WHERE id = ?' );
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$result = $stmt->execute(array($id));
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return $result->fetchRow();
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}
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/**
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* @brief finds an object by its DAV Data
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* @param integer $cid Calendar id
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* @param string $uri the uri ('filename')
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* @return associative array
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*/
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public static function findWhereDAVDataIs($cid,$uri){
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$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*calendar_objects WHERE calendarid = ? AND uri = ?' );
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$result = $stmt->execute(array($cid,$uri));
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return $result->fetchRow();
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}
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/**
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* @brief Adds an object
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* @param integer $id Calendar id
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* @param string $data object
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* @return insertid
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*/
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public static function add($id,$data){
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$object = self::parse($data);
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list($type,$startdate,$enddate,$summary,$repeating,$uid) = self::extractData($object);
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if(is_null($uid)){
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$uid = self::createUID();
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$object->add('UID',$uid);
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$data = $object->serialize();
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}
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$uri = 'owncloud-'.md5($data.rand().time()).'.ics';
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$stmt = OC_DB::prepare( 'INSERT INTO *PREFIX*calendar_objects (calendarid,objecttype,startdate,enddate,repeating,summary,calendardata,uri,lastmodified) VALUES(?,?,?,?,?,?,?,?,?)' );
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$result = $stmt->execute(array($id,$type,$startdate,$enddate,$repeating,$summary,$data,$uri,time()));
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OC_Calendar_Calendar::touchCalendar($id);
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return OC_DB::insertid();
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}
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/**
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* @brief Adds an object with the data provided by sabredav
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* @param integer $id Calendar id
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* @param string $uri the uri the card will have
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* @param string $data object
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* @return insertid
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*/
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public static function addFromDAVData($id,$uri,$data){
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$object = self::parse($data);
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list($type,$startdate,$enddate,$summary,$repeating,$uid) = self::extractData($object);
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$stmt = OC_DB::prepare( 'INSERT INTO *PREFIX*calendar_objects (calendarid,objecttype,startdate,enddate,repeating,summary,calendardata,uri,lastmodified) VALUES(?,?,?,?,?,?,?,?,?)' );
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$result = $stmt->execute(array($id,$type,$startdate,$enddate,$repeating,$summary,$data,$uri,time()));
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OC_Calendar_Calendar::touchCalendar($id);
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return OC_DB::insertid();
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}
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/**
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* @brief edits an object
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* @param integer $id id of object
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* @param string $data object
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* @return boolean
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*/
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public static function edit($id, $data){
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$oldobject = self::find($id);
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$object = self::parse($data);
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list($type,$startdate,$enddate,$summary,$repeating,$uid) = self::extractData($object);
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$stmt = OC_DB::prepare( 'UPDATE *PREFIX*calendar_objects SET objecttype=?,startdate=?,enddate=?,repeating=?,summary=?,calendardata=?, lastmodified = ? WHERE id = ?' );
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$result = $stmt->execute(array($type,$startdate,$enddate,$repeating,$summary,$data,time(),$id));
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OC_Calendar_Calendar::touchCalendar($id);
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return true;
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}
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/**
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* @brief edits an object with the data provided by sabredav
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* @param integer $id calendar id
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* @param string $uri the uri of the object
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* @param string $data object
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* @return boolean
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*/
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public static function editFromDAVData($cid,$uri,$data){
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$oldobject = self::findWhereDAVDataIs($cid,$uri);
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$object = self::parse($data);
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list($type,$startdate,$enddate,$summary,$repeating,$uid) = self::extractData($object);
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$stmt = OC_DB::prepare( 'UPDATE *PREFIX*calendar_objects SET objecttype=?,startdate=?,enddate=?,repeating=?,summary=?,calendardata=?, lastmodified = ? WHERE id = ?' );
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$result = $stmt->execute(array($type,$startdate,$enddate,$repeating,$summary,$data,time(),$oldobject['id']));
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OC_Calendar_Calendar::touchCalendar($oldobject['calendarid']);
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return true;
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}
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/**
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* @brief deletes an object
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* @param integer $id id of object
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* @return boolean
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*/
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public static function delete($id){
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$stmt = OC_DB::prepare( 'DELETE FROM *PREFIX*calendar_objects WHERE id = ?' );
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$stmt->execute(array($id));
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return true;
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}
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/**
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* @brief deletes an object with the data provided by sabredav
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* @param integer $cid calendar id
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* @param string $uri the uri of the object
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* @return boolean
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*/
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public static function deleteFromDAVData($cid,$uri){
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$stmt = OC_DB::prepare( 'DELETE FROM *PREFIX*calendar_objects WHERE calendarid = ? AND uri=?' );
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$stmt->execute(array($cid,$uri));
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return true;
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}
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/**
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* @brief Creates a UID
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* @return string
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*/
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protected static function createUID(){
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return substr(md5(rand().time()),0,10);
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}
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/**
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* @brief Extracts data from a vObject-Object
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* @param Sabre_VObject $object
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* @return array
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*
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* [type, start, end, summary, repeating, uid]
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*/
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protected static function extractData($object){
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$return = array('',null,null,'',0,null);
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// Child to use
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$children = 0;
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$use = null;
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foreach($object->children as &$property){
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if($property->name == 'VEVENT'){
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$children++;
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$thisone = true;
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foreach($property->children as &$element){
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if($element->name == 'RECURRENCE-ID'){
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$thisone = false;
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}
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} unset($element);
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if($thisone){
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$use = $property;
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}
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}
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elseif($property->name == 'VTODO' || $property->name == 'VJOURNAL'){
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$return[0] = $use->name;
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foreach($property->children as &$element){
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if($property->name == 'SUMMARY'){
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$return[3] = $property->value;
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}
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elseif($property->name == 'UID'){
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$return[5] = $property->value;
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}
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};
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// Only one VTODO or VJOURNAL per object
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// (only one UID per object but a UID is required by a VTODO =>
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// one VTODO per object)
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break;
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}
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} unset($property);
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// find the data
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if(!is_null($use)){
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$return[0] = $use->name;
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foreach($use->children as &$property){
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if($property->name == 'DTSTART'){
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$return[1] = self::getUTCforMDB($property->getDateTime());
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}
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elseif($property->name == 'DTEND'){
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$return[2] = self::getUTCforMDB($property->getDateTime());
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}
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elseif($property->name == 'SUMMARY'){
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$return[3] = $property->value;
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}
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elseif($property->name == 'RRULE'){
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$return[4] = 1;
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}
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elseif($property->name == 'UID'){
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$return[5] = $property->value;
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}
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} unset($property);
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}
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// More than one child means reoccuring!
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if($children > 1){
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$return[4] = 1;
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}
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return $return;
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}
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/**
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* @brief DateTime to UTC string
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* @param DateTime $datetime The date to convert
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* @returns date as YYYY-MM-DD hh:mm
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*
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* This function creates a date string that can be used by MDB2.
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* Furthermore it converts the time to UTC.
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*/
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protected static function getUTCforMDB($datetime){
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return date('Y-m-d H:i', $datetime->format('U') - $datetime->getOffset());
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}
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/**
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* @brief Parses the VObject
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* @param string VObject as string
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* @returns Sabre_VObject or null
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*/
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public static function parse($data){
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try {
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$calendar = Sabre_VObject_Reader::read($data);
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return $calendar;
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} catch (Exception $e) {
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return null;
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}
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}
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}
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