diff options
Diffstat (limited to 'lib/util.php')
| -rw-r--r-- | lib/util.php | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/lib/util.php b/lib/util.php new file mode 100644 index 00000000000..8beb4a884bc --- /dev/null +++ b/lib/util.php @@ -0,0 +1,245 @@ +<?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; + } + + // Global Variables + global $SERVERROOT; + global $CONFIG_DATADIRECTORY; + + $CONFIG_DATADIRECTORY_ROOT = OC_CONFIG::getValue( "datadirectory", "$SERVERROOT/data" ); + $CONFIG_BACKUPDIRECTORY = OC_CONFIG::getValue( "backupdirectory", "$SERVERROOT/backup" ); + + // Create root dir + if(!is_dir($CONFIG_DATADIRECTORY_ROOT)){ + @mkdir($CONFIG_DATADIRECTORY_ROOT) or die("Can't create data directory ($CONFIG_DATADIRECTORY_ROOT), you can usually fix this by setting the owner of '$SERVERROOT' to the user that the web server uses (www-data for debian/ubuntu)"); + } + + // 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,'/'); + + $CONFIG_DATADIRECTORY = "$CONFIG_DATADIRECTORY_ROOT/$user/$root"; + if( !is_dir( $CONFIG_DATADIRECTORY )){ + mkdir( $CONFIG_DATADIRECTORY, 0755, true ); + } + +// TODO: find a cool way for doing this +// //set up the other storages according to the system settings +// foreach($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"); + 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(1,60,0); + } + + /** + * 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(){ + global $SERVERROOT; + global $CONFIG_DATADIRECTORY; + + $CONFIG_DATADIRECTORY_ROOT = OC_CONFIG::getValue( "datadirectory", "$SERVERROOT/data" );; + $CONFIG_BACKUPDIRECTORY = OC_CONFIG::getValue( "backupdirectory", "$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'=>$permissionsHint); + } + } + } + }else{ + //TODO: premisions checks for windows hosts + } + if(is_dir($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; + } +} + |