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<?php
/**
* @author Bart Visscher <bartv@thisnet.nl>
* @author Felix Moeller <mail@felixmoeller.de>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
* @author Susinthiran Sithamparanathan <chesusin@gmail.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
class OC_VObject{
/** @var Sabre\VObject\Component */
protected $vObject;
/**
* @return Sabre\VObject\Component
*/
public function getVObject() {
return $this->vObject;
}
/**
* Parses the VObject
* @param string $data VObject as string
* @return Sabre\VObject\Reader|null
*/
public static function parse($data) {
try {
Sabre\VObject\Property::$classMap['LAST-MODIFIED'] = 'Sabre\VObject\Property\DateTime';
$vObject = Sabre\VObject\Reader::read($data);
if ($vObject instanceof Sabre\VObject\Component) {
$vObject = new OC_VObject($vObject);
}
return $vObject;
} catch (Exception $e) {
OC_Log::write('vobject', $e->getMessage(), OC_Log::ERROR);
return null;
}
}
/**
* Escapes semicolons
* @param array $value
* @return string
*/
public static function escapeSemicolons($value) {
foreach($value as &$i ) {
$i = implode("\\\\;", explode(';', $i));
}
return implode(';', $value);
}
/**
* Creates an array out of a multivalue property
* @param string $value
* @return array
*/
public static function unescapeSemicolons($value) {
$array = explode(';', $value);
$arrayCount = count($array);
for($i = 0; $i < $arrayCount; $i++) {
if(substr($array[$i], -2, 2)=="\\\\") {
if(isset($array[$i+1])) {
$array[$i] = substr($array[$i], 0, count($array[$i])-2).';'.$array[$i+1];
unset($array[$i+1]);
}
else{
$array[$i] = substr($array[$i], 0, count($array[$i])-2).';';
}
$i = $i - 1;
}
}
return $array;
}
/**
* Constructor
* @param Sabre\VObject\Component|string $vobject_or_name
*/
public function __construct($vobject_or_name) {
if (is_object($vobject_or_name)) {
$this->vObject = $vobject_or_name;
} else {
$this->vObject = new Sabre\VObject\Component($vobject_or_name);
}
}
/**
* @todo Write documentation
* @param \OC_VObject|\Sabre\VObject\Component $item
* @param null $itemValue
*/
public function add($item, $itemValue = null) {
if ($item instanceof OC_VObject) {
$item = $item->getVObject();
}
$this->vObject->add($item, $itemValue);
}
/**
* Add property to vobject
* @param object $name of property
* @param object $value of property
* @param array|object $parameters of property
* @return Sabre\VObject\Property newly created
*/
public function addProperty($name, $value, $parameters=array()) {
if(is_array($value)) {
$value = OC_VObject::escapeSemicolons($value);
}
$property = new Sabre\VObject\Property( $name, $value );
foreach($parameters as $name => $value) {
$property->parameters[] = new Sabre\VObject\Parameter($name, $value);
}
$this->vObject->add($property);
return $property;
}
public function setUID() {
$uid = substr(md5(rand().time()), 0, 10);
$this->vObject->add('UID', $uid);
}
/**
* @todo Write documentation
* @param mixed $name
* @param string $string
*/
public function setString($name, $string) {
if ($string != '') {
$string = strtr($string, array("\r\n"=>"\n"));
$this->vObject->__set($name, $string);
}else{
$this->vObject->__unset($name);
}
}
/**
* Sets or unsets the Date and Time for a property.
* When $datetime is set to 'now', use the current time
* When $datetime is null, unset the property
*
* @param string $name
* @param DateTime $datetime
* @param int $dateType
* @return void
*/
public function setDateTime($name, $datetime, $dateType=Sabre\VObject\Property\DateTime::LOCALTZ) {
if ($datetime == 'now') {
$datetime = new DateTime();
}
if ($datetime instanceof DateTime) {
$datetime_element = new Sabre\VObject\Property\DateTime($name);
$datetime_element->setDateTime($datetime, $dateType);
$this->vObject->__set($name, $datetime_element);
}else{
$this->vObject->__unset($name);
}
}
/**
* @todo Write documentation
* @param string $name
* @return string
*/
public function getAsString($name) {
return $this->vObject->__isset($name) ?
$this->vObject->__get($name)->value :
'';
}
/**
* @todo Write documentation
* @param string $name
* @return array
*/
public function getAsArray($name) {
$values = array();
if ($this->vObject->__isset($name)) {
$values = explode(',', $this->getAsString($name));
$values = array_map('trim', $values);
}
return $values;
}
/**
* @todo Write documentation
* @param string $name
* @return array|OC_VObject|\Sabre\VObject\Property
*/
public function &__get($name) {
if ($name == 'children') {
return $this->vObject->children;
}
$return = $this->vObject->__get($name);
if ($return instanceof Sabre\VObject\Component) {
$return = new OC_VObject($return);
}
return $return;
}
/**
* @todo Write documentation
* @param string $name
* @param string $value
*/
public function __set($name, $value) {
return $this->vObject->__set($name, $value);
}
/**
* @todo Write documentation
* @param string $name
*/
public function __unset($name) {
return $this->vObject->__unset($name);
}
/**
* @todo Write documentation
* @param string $name
* @return bool
*/
public function __isset($name) {
return $this->vObject->__isset($name);
}
/**
* @todo Write documentation
* @param callable $function
* @param array $arguments
* @return mixed
*/
public function __call($function, $arguments) {
return call_user_func_array(array($this->vObject, $function), $arguments);
}
}
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