514 lines
14 KiB
PHP
514 lines
14 KiB
PHP
<?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,$uri));
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return true;
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}
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public static function moveToCalendar($id, $calendarid){
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$stmt = OC_DB::prepare( 'UPDATE *PREFIX*calendar_objects SET calendarid=? WHERE id = ?' );
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$result = $stmt->execute(array($calendarid,$id));
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OC_Calendar_Calendar::touchCalendar($id);
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return true;
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}
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/**
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* @brief 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] = $property->name;
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foreach($property->children as &$element){
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if($element->name == 'SUMMARY'){
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$return[3] = $element->value;
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}
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elseif($element->name == 'UID'){
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$return[5] = $element->value;
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}
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};
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// Only one VTODO or VJOURNAL per object
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// (only one UID per object but a UID is required by a VTODO =>
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// one VTODO per object)
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break;
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}
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} unset($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 $e) {
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return null;
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}
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}
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public static function getCategoryOptions($l10n)
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{
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return array(
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$l10n->t('None'),
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$l10n->t('Birthday'),
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$l10n->t('Business'),
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$l10n->t('Call'),
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$l10n->t('Clients'),
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$l10n->t('Deliverer'),
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$l10n->t('Holidays'),
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$l10n->t('Ideas'),
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$l10n->t('Journey'),
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$l10n->t('Jubilee'),
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$l10n->t('Meeting'),
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$l10n->t('Other'),
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$l10n->t('Personal'),
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$l10n->t('Projects'),
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$l10n->t('Questions'),
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$l10n->t('Work'),
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);
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}
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public static function getRepeatOptions($l10n)
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{
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return array(
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'doesnotrepeat' => $l10n->t('Does not repeat'),
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'daily' => $l10n->t('Daily'),
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'weekly' => $l10n->t('Weekly'),
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'weekday' => $l10n->t('Every Weekday'),
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'biweekly' => $l10n->t('Bi-Weekly'),
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'monthly' => $l10n->t('Monthly'),
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'yearly' => $l10n->t('Yearly'),
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);
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}
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public static function validateRequest($request)
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{
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$errnum = 0;
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$errarr = array('title'=>'false', 'cal'=>'false', 'from'=>'false', 'fromtime'=>'false', 'to'=>'false', 'totime'=>'false', 'endbeforestart'=>'false');
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if($request['title'] == ''){
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$errarr['title'] = 'true';
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$errnum++;
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}
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$calendar = OC_Calendar_Calendar::findCalendar($request['calendar']);
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if($calendar['userid'] != OC_User::getUser()){
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$errarr['cal'] = 'true';
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$errnum++;
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}
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$fromday = substr($request['from'], 0, 2);
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$frommonth = substr($request['from'], 3, 2);
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$fromyear = substr($request['from'], 6, 4);
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if(!checkdate($frommonth, $fromday, $fromyear)){
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$errarr['from'] = 'true';
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$errnum++;
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}
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$allday = isset($request['allday']);
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if(!$allday && self::checkTime(urldecode($request['fromtime']))) {
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$errarr['fromtime'] = 'true';
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$errnum++;
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}
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$today = substr($request['to'], 0, 2);
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$tomonth = substr($request['to'], 3, 2);
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$toyear = substr($request['to'], 6, 4);
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if(!checkdate($tomonth, $today, $toyear)){
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$errarr['to'] = 'true';
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$errnum++;
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}
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;
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if(!$allday && self::checkTime(urldecode($request['totime']))) {
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$errarr['totime'] = 'true';
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$errnum++;
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}
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if($today < $fromday && $frommonth == $tomonth && $fromyear == $toyear){
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$errarr['endbeforestart'] = 'true';
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$errnum++;
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}
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if($today == $fromday && $frommonth > $tomonth && $fromyear == $toyear){
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$errarr['endbeforestart'] = 'true';
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$errnum++;
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}
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if($today == $fromday && $frommonth == $tomonth && $fromyear > $toyear){
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$errarr['endbeforestart'] = 'true';
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$errnum++;
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}
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if($fromday == $today && $frommonth == $tomonth && $fromyear == $toyear){
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list($tohours, $tominutes) = explode(':', $request['totime']);
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list($fromhours, $fromminutes) = explode(':', $request['fromtime']);
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if($tohours < $fromhours){
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$errarr['endbeforestart'] = 'true';
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$errnum++;
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}
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if($tohours == $fromhours && $tominutes < $fromminutes){
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$errarr['endbeforestart'] = 'true';
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$errnum++;
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}
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}
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if ($errnum)
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{
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return $errarr;
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}
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return false;
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}
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protected static function checkTime($time)
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{
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list($hours, $minutes) = explode(':', $time);
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return empty($time)
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|| $hours < 0 || $hours > 24
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|| $minutes < 0 || $minutes > 60;
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}
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public static function createVCalendarFromRequest($request)
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{
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$vcalendar = new Sabre_VObject_Component('VCALENDAR');
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$vcalendar->add('PRODID', 'ownCloud Calendar');
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$vcalendar->add('VERSION', '2.0');
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$now = new DateTime();
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$vevent = new Sabre_VObject_Component('VEVENT');
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$vcalendar->add($vevent);
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$created = new Sabre_VObject_Element_DateTime('CREATED');
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$created->setDateTime($now, Sabre_VObject_Element_DateTime::UTC);
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$vevent->add($created);
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$uid = self::createUID();
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$vevent->add('UID',$uid);
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return self::updateVCalendarFromRequest($request, $vcalendar);
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}
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public static function updateVCalendarFromRequest($request, $vcalendar)
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{
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$title = $request["title"];
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$location = $request["location"];
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$cat = $request["category"];
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$allday = isset($request["allday"]);
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$from = $request["from"];
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$fromtime = $request["fromtime"];
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$to = $request["to"];
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$totime = $request["totime"];
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$description = $request["description"];
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//$repeat = $request["repeat"];
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/*switch($request["repeatfreq"]){
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case "DAILY":
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$repeatfreq = "DAILY";
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case "WEEKLY":
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$repeatfreq = "WEEKLY";
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case "WEEKDAY":
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$repeatfreq = "DAILY;BYDAY=MO,TU,WE,TH,FR"; //load weeksdayss from userconfig when weekdays are choosable
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case "":
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$repeatfreq = "";
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case "":
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$repeatfreq = "";
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case "":
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$repeatfreq = "";
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default:
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$repeat = "false";
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}*/
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$repeat = "false";
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$now = new DateTime();
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$vevent = $vcalendar->VEVENT[0];
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$last_modified = new Sabre_VObject_Element_DateTime('LAST-MODIFIED');
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$last_modified->setDateTime($now, Sabre_VObject_Element_DateTime::UTC);
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$vevent->__set('LAST-MODIFIED', $last_modified);
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$dtstamp = new Sabre_VObject_Element_DateTime('DTSTAMP');
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$dtstamp->setDateTime($now, Sabre_VObject_Element_DateTime::UTC);
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$vevent->DTSTAMP = $dtstamp;
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$vevent->SUMMARY = $title;
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$dtstart = new Sabre_VObject_Element_DateTime('DTSTART');
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$dtend = new Sabre_VObject_Element_DateTime('DTEND');
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if($allday){
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$start = new DateTime($from);
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$end = new DateTime($to.' +1 day');
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$dtstart->setDateTime($start, Sabre_VObject_Element_DateTime::DATE);
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$dtend->setDateTime($end, Sabre_VObject_Element_DateTime::DATE);
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}else{
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$timezone = OC_Preferences::getValue(OC_USER::getUser(), "calendar", "timezone", "Europe/London");
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$timezone = new DateTimeZone($timezone);
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$start = new DateTime($from.' '.$fromtime, $timezone);
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$end = new DateTime($to.' '.$totime, $timezone);
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$dtstart->setDateTime($start, Sabre_VObject_Element_DateTime::LOCALTZ);
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$dtend->setDateTime($end, Sabre_VObject_Element_DateTime::LOCALTZ);
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}
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$vevent->DTSTART = $dtstart;
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$vevent->DTEND = $dtend;
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if($location != ""){
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$vevent->LOCATION = $location;
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}
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if($description != ""){
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$des = str_replace("\n","\\n", $description);
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$vevent->DESCRIPTION = $des;
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}
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if($cat != ""){
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$vevent->CATEGORIES = $cat;
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}
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/*if($repeat == "true"){
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$vevent->RRULE = $repeat;
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}*/
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return $vcalendar;
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}
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}
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