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<?php
/**
* Class for utility functions
*
*/
class OC_Util {
public static $scripts=array();
public static $styles=array();
public static $headers=array();
private static $fsSetup=false;
// Can be set up
public static function setupFS( $user = "", $root = "files" ){// configure the initial filesystem based on the configuration
if(self::$fsSetup){//setting up the filesystem twice can only lead to trouble
return false;
}
$CONFIG_DATADIRECTORY_ROOT = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
$CONFIG_BACKUPDIRECTORY = OC_Config::getValue( "backupdirectory", OC::$SERVERROOT."/backup" );
// Create root dir
if(!is_dir($CONFIG_DATADIRECTORY_ROOT)){
$success=@mkdir($CONFIG_DATADIRECTORY_ROOT);
if(!$success) {
$tmpl = new OC_Template( '', 'error', 'guest' );
$tmpl->assign('errors',array(1=>array('error'=>"Can't create data directory (".$CONFIG_DATADIRECTORY_ROOT.")",'hint'=>"You can usually fix this by setting the owner of '".OC::$SERVERROOT."' to the user that the web server uses (".exec('whoami').")")));
$tmpl->printPage();
exit;
}
}
// If we are not forced to load a specific user we load the one that is logged in
if( $user == "" && OC_User::isLoggedIn()){
$user = OC_User::getUser();
}
if( $user != "" ){ //if we aren't logged in, there is no use to set up the filesystem
//first set up the local "root" storage and the backupstorage if needed
$rootStorage=OC_Filesystem::createStorage('local',array('datadir'=>$CONFIG_DATADIRECTORY_ROOT));
// if( OC_Config::getValue( "enablebackup", false )){
// // This creates the Directorys recursively
// if(!is_dir( "$CONFIG_BACKUPDIRECTORY/$user/$root" )){
// mkdir( "$CONFIG_BACKUPDIRECTORY/$user/$root", 0755, true );
// }
// $backupStorage=OC_Filesystem::createStorage('local',array('datadir'=>$CONFIG_BACKUPDIRECTORY));
// $backup=new OC_FILEOBSERVER_BACKUP(array('storage'=>$backupStorage));
// $rootStorage->addObserver($backup);
// }
OC_Filesystem::mount($rootStorage,'/');
// TODO add this storage provider in a proper way
$sharedStorage = OC_Filesystem::createStorage('shared',array('datadir'=>'/'.OC_User::getUser().'/files/Shared'));
OC_Filesystem::mount($sharedStorage,'/'.OC_User::getUser().'/files/Shared/');
OC::$CONFIG_DATADIRECTORY = $CONFIG_DATADIRECTORY_ROOT."/$user/$root";
if( !is_dir( OC::$CONFIG_DATADIRECTORY )){
mkdir( OC::$CONFIG_DATADIRECTORY, 0755, true );
}
// TODO: find a cool way for doing this
// //set up the other storages according to the system settings
// foreach($CONFIG_FILESYSTEM as $storageConfig){
// if(OC_Filesystem::hasStorageType($storageConfig['type'])){
// $arguments=$storageConfig;
// unset($arguments['type']);
// unset($arguments['mountpoint']);
// $storage=OC_Filesystem::createStorage($storageConfig['type'],$arguments);
// if($storage){
// OC_Filesystem::mount($storage,$storageConfig['mountpoint']);
// }
// }
// }
//jail the user into his "home" directory
OC_Filesystem::chroot("/$user/$root");
$quotaProxy=new OC_FileProxy_Quota();
OC_FileProxy::register($quotaProxy);
self::$fsSetup=true;
}
}
public static function tearDownFS(){
OC_Filesystem::tearDown();
self::$fsSetup=false;
}
/**
* get the current installed version of ownCloud
* @return array
*/
public static function getVersion(){
return array(1,90,0);
}
/**
* add a javascript file
*
* @param url $url
*/
public static function addScript( $application, $file = null ){
if( is_null( $file )){
$file = $application;
$application = "";
}
if( !empty( $application )){
self::$scripts[] = "$application/js/$file";
}else{
self::$scripts[] = "js/$file";
}
}
/**
* add a css file
*
* @param url $url
*/
public static function addStyle( $application, $file = null ){
if( is_null( $file )){
$file = $application;
$application = "";
}
if( !empty( $application )){
self::$styles[] = "$application/css/$file";
}else{
self::$styles[] = "css/$file";
}
}
/**
* @brief Add a custom element to the header
* @param string tag tag name of the element
* @param array $attributes array of attrobutes for the element
* @param string $text the text content for the element
*/
public static function addHeader( $tag, $attributes, $text=''){
self::$headers[]=array('tag'=>$tag,'attributes'=>$attributes,'text'=>$text);
}
/**
* formats a timestamp in the "right" way
*
* @param int timestamp $timestamp
* @param bool dateOnly option to ommit time from the result
*/
public static function formatDate( $timestamp,$dateOnly=false){
if(isset($_SESSION['timezone'])){//adjust to clients timezone if we know it
$systemTimeZone = intval(exec('date +%z'));
$systemTimeZone=(round($systemTimeZone/100,0)*60)+($systemTimeZone%100);
$clientTimeZone=$_SESSION['timezone']*60;
$offset=$clientTimeZone-$systemTimeZone;
$timestamp=$timestamp+$offset*60;
}
$timeformat=$dateOnly?'F j, Y':'F j, Y, H:i';
return date($timeformat,$timestamp);
}
/**
* Shows a pagenavi widget where you can jump to different pages.
*
* @param int $pagecount
* @param int $page
* @param string $url
* @return OC_Template
*/
public static function getPageNavi($pagecount,$page,$url) {
$pagelinkcount=8;
if ($pagecount>1) {
$pagestart=$page-$pagelinkcount;
if($pagestart<0) $pagestart=0;
$pagestop=$page+$pagelinkcount;
if($pagestop>$pagecount) $pagestop=$pagecount;
$tmpl = new OC_Template( '', 'part.pagenavi', '' );
$tmpl->assign('page',$page);
$tmpl->assign('pagecount',$pagecount);
$tmpl->assign('pagestart',$pagestart);
$tmpl->assign('pagestop',$pagestop);
$tmpl->assign('url',$url);
return $tmpl;
}
}
/**
* check if the current server configuration is suitable for ownCloud
* @return array arrays with error messages and hints
*/
public static function checkServer(){
$CONFIG_DATADIRECTORY_ROOT = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
$CONFIG_BACKUPDIRECTORY = OC_Config::getValue( "backupdirectory", OC::$SERVERROOT."/backup" );
$CONFIG_INSTALLED = OC_Config::getValue( "installed", false );
$errors=array();
//check for database drivers
if(!is_callable('sqlite_open') and !is_callable('mysql_connect')){
$errors[]=array('error'=>'No database drivers (sqlite or mysql) installed.<br/>','hint'=>'');//TODO: sane hint
}
$CONFIG_DBTYPE = OC_Config::getValue( "dbtype", "sqlite" );
$CONFIG_DBNAME = OC_Config::getValue( "dbname", "owncloud" );
//try to get the username the httpd server runs on, used in hints
$stat=stat($_SERVER['DOCUMENT_ROOT']);
if(is_callable('posix_getpwuid')){
$serverUser=posix_getpwuid($stat['uid']);
$serverUser='\''.$serverUser['name'].'\'';
}else{
$serverUser='\'www-data\' for ubuntu/debian';//TODO: try to detect the distro and give a guess based on that
}
//common hint for all file permissons error messages
$permissionsHint="Permissions can usually be fixed by setting the owner of the file or directory to the user the web server runs as ($serverUser)";
//check for correct file permissions
if(!stristr(PHP_OS, 'WIN')){
$prems=substr(decoct(@fileperms($CONFIG_DATADIRECTORY_ROOT)),-3);
if(substr($prems,-1)!='0'){
OC_Helper::chmodr($CONFIG_DATADIRECTORY_ROOT,0770);
clearstatcache();
$prems=substr(decoct(@fileperms($CONFIG_DATADIRECTORY_ROOT)),-3);
if(substr($prems,2,1)!='0'){
$errors[]=array('error'=>'Data directory ('.$CONFIG_DATADIRECTORY_ROOT.') is readable from the web<br/>','hint'=>$permissionsHint);
}
}
if( OC_Config::getValue( "enablebackup", false )){
$prems=substr(decoct(@fileperms($CONFIG_BACKUPDIRECTORY)),-3);
if(substr($prems,-1)!='0'){
OC_Helper::chmodr($CONFIG_BACKUPDIRECTORY,0770);
clearstatcache();
$prems=substr(decoct(@fileperms($CONFIG_BACKUPDIRECTORY)),-3);
if(substr($prems,2,1)!='0'){
$errors[]=array('error'=>'Data directory ('.$CONFIG_BACKUPDIRECTORY.') is readable from the web<br/>','hint'=>$permissionsHint);
}
}
}
}else{
//TODO: permissions checks for windows hosts
}
if(is_dir($CONFIG_DATADIRECTORY_ROOT) and !is_writable($CONFIG_DATADIRECTORY_ROOT)){
$errors[]=array('error'=>'Data directory ('.$CONFIG_DATADIRECTORY_ROOT.') not writable by ownCloud<br/>','hint'=>$permissionsHint);
}
//TODO: check for php modules
return $errors;
}
}
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