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<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @copyright 2010 Frank Karlitschek karlitschek@kde.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
class OC_PLUGIN{
static private $blacklist=array();
/**
* load the plugin with the given id
* @param string id
* @return bool
*/
static public function load($id){
global $SERVERROOT;
$data=self::getPluginData($id);
if($data){
if(isset($data['info']['require'])){
$minVersion=explode('.',$data['info']['require']);
$version=OC_UTIL::getVersion();
$roundTo=count($minVersion);
while(count($version)>$roundTo){
if($version[count($version)-1]>=50){
$version[count($version)-2]++;
}
unset($version[count($version)-1]);
}
for($i=0;$i<count($minVersion);$i++){
if($version[$i]<$minVersion[$i]){
return false;
}
}
}
foreach($data['runtime'] as $include){
include($SERVERROOT.'/plugins/'.$id.'/'.$include);
}
}
return false;
}
/**
* Load all plugins that aren't blacklisted
*/
public static function loadPlugins() {
global $SERVERROOT;
$plugins = array();
$blacklist=self::loadBlacklist();
$fd = opendir($SERVERROOT . '/plugins');
while ( false !== ($filename = readdir($fd)) ) {
if ( $filename<>'.' AND $filename<>'..' AND ('.' != substr($filename, 0, 1)) AND array_search($filename,$blacklist)===false) {
self::load($filename);
}
}
closedir($fd);
}
/**
* load the blacklist from blacklist.txt
* @return array
*/
private static function loadBlacklist(){
global $SERVERROOT;
if(count(self::$blacklist)>0){
return self::$blacklist;
}
$blacklist=array();
if(is_file($SERVERROOT.'/plugins/blacklist.txt')){
$file=file_get_contents($SERVERROOT.'/plugins/blacklist.txt');
$lines=explode("\n",$file);
foreach($lines as $line){
$id=trim($line);
if($id!='' and is_dir($SERVERROOT.'/plugins/'.$id)){
$blacklist[]=$id;
}
}
}
self::$blacklist=$blacklist;
return $blacklist;
}
/**
* save a blacklist to blacklist.txt
* @param array blacklist
*/
private static function saveBlacklist($blacklist){
global $SERVERROOT;
$file='';
foreach($blacklist as $item){
$file.="$item\n";
}
self::$blacklist=$blacklist;
file_put_contents($SERVERROOT.'/plugins/blacklist.txt',$file);
}
/**
* add a plugin to the blacklist
* @param string id
*/
public static function addToBlacklist($id){
$blacklist=self::loadBlacklist();
if(array_search($id,$blacklist)===false){
$blacklist[]=$id;
self::$blacklist=$blacklist;
self::saveBlacklist($blacklist);
}
}
/**
* remove a plugin to the blacklist
* @param string id
*/
public static function removeFromBlacklist($id){
$blacklist=self::loadBlacklist();
$index=array_search($id,$blacklist);
if($index!==false){
unset($blacklist[$index]);
self::$blacklist=$blacklist;
self::saveBlacklist($blacklist);
}
}
/**
( Load data from the plugin.xml of a plugin, either identified by the plugin or the path of the plugin.xml file
* @param string id
*( @return array
*/
public static function getPluginData($id){
global $SERVERROOT;
if(is_file($id)){
$file=$id;
}
if(!is_dir($SERVERROOT.'/plugins/'.$id) or !is_file($SERVERROOT.'/plugins/'.$id.'/plugin.xml')){
return false;
}else{
$file=$SERVERROOT.'/plugins/'.$id.'/plugin.xml';
}
$data=array();
$plugin=new DOMDocument();
$plugin->load($file);
$data['version']=$plugin->documentElement->getAttribute('version');
$info=$plugin->getElementsByTagName('info');
if($info->length>0){
$info=$info->item(0);
$data['info']=array();
foreach($info->childNodes as $child){
if($child->nodeType==XML_ELEMENT_NODE){
$data['info'][$child->tagName]=$child->textContent;
}
}
}
$runtime=$plugin->getElementsByTagName('runtime');
if($runtime->length>0){
$runtime=$runtime->item(0);
$data['runtime']=array();
foreach($runtime->childNodes as $child){
if($child->nodeType==XML_ELEMENT_NODE and $child->tagName=='include'){
$data['runtime'][]=$child->textContent;
}
}
}
$install=$plugin->getElementsByTagName('install');
if($install->length>0){
$install=$install->item(0);
$data['install']=array();
foreach($install->childNodes as $child){
if($child->nodeType==XML_ELEMENT_NODE){
$data['install']['include']=array();
$data['install']['dialog']=array();
$data['install']['database']=array();
switch($child->tagName){
case 'include':
$data['install']['include'][]=$child->textContent;
break;
case 'dialog':
$data['install']['dialog'][]=$child->textContent;
break;
case 'database':
$data['install']['database'][]=$child->textContent;
break;
}
}
}
}
$uninstall=$plugin->getElementsByTagName('uninstall');
if($uninstall->length>0){
$uninstall=$uninstall->item(0);
$data['uninstall']=array();
foreach($uninstall->childNodes as $child){
if($child->nodeType==XML_ELEMENT_NODE){
$data['uninstall']['include']=array();
$data['uninstall']['dialog']=array();
switch($child->tagName){
case 'include':
$data['uninstall']['include'][]=$child->textContent;
break;
case 'dialog':
$data['uninstall']['dialog'][]=$child->textContent;
break;
}
}
}
}
return $data;
}
}
?>
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