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base.php 12.64 KiB
<?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 Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
// set some stuff
//ob_start();
error_reporting(E_ALL | E_STRICT);
date_default_timezone_set('Europe/Berlin');
ini_set('arg_separator.output','&');
ini_set('session.cookie_httponly','1;');
session_start();
// calculate the documentroot
$SERVERROOT=substr(__FILE__,0,-13);
$DOCUMENTROOT=realpath($_SERVER['DOCUMENT_ROOT']);
$SERVERROOT=str_replace("\\",'/',$SERVERROOT);
$SUBURI=substr(realpath($_SERVER["SCRIPT_FILENAME"]),strlen($SERVERROOT));
$WEBROOT=substr($_SERVER["SCRIPT_NAME"],0,strlen($_SERVER["SCRIPT_NAME"])-strlen($SUBURI));
if($WEBROOT!='' and $WEBROOT[0]!=='/'){
$WEBROOT='/'.$WEBROOT;
}
// set the right include path
set_include_path($SERVERROOT.'/lib'.PATH_SEPARATOR.$SERVERROOT.'/config'.PATH_SEPARATOR.$SERVERROOT.'/3dparty'.PATH_SEPARATOR.get_include_path().PATH_SEPARATOR.$SERVERROOT);
// define runtime variables - unless this already has been done
if( !isset( $RUNTIME_NOSETUPFS )){
$RUNTIME_NOSETUPFS = false;
}
if( !isset( $RUNTIME_NOAPPS )){
$RUNTIME_NOAPPS = false;
}
// Doing the config stuff first
require_once('config.php');
// TODO: we should get rid of this one, too
// WARNING: to make everything even more confusing, DATADIRECTORY is a var that
// changes and DATATIRECTORY_ROOT stays the same, but is set by
// "datadirectory". Any questions?
$CONFIG_DATADIRECTORY = OC_CONFIG::getValue( "datadirectory", "$SERVERROOT/data" );
// redirect to https site if configured
if( OC_CONFIG::getValue( "forcessl", false )){
if(!isset($_SERVER['HTTPS']) or $_SERVER['HTTPS'] != 'on') {
$url = "https://". $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
header("Location: $url"); exit();
}
}
// load core libs
require_once('helper.php');
require_once('database.php');
require_once('app.php');
require_once('appconfig.php');
require_once('files.php');
require_once('filesystem.php');
require_once('filestorage.php');
require_once('log.php');
require_once('user.php');
require_once('group.php');
require_once('ocs.php');
require_once('ocsclient.php');
require_once('connect.php');
require_once('remotestorage.php');
require_once('plugin.php');
$error=(count(OC_UTIL::checkServer())>0);
if(!$error){
OC_PLUGIN::loadPlugins( "" );
}
OC_USER::setBackend( OC_CONFIG::getValue( "userbackend", "database" ));
OC_GROUP::setBackend( OC_CONFIG::getValue( "groupbackend", "database" ));
// Set up file system unless forbidden
if(!$error and !$RUNTIME_NOSETUPFS ){
OC_UTIL::setupFS();
}
// Add the stuff we need always
OC_UTIL::addScript( "jquery-1.5.min" );
OC_UTIL::addScript( "jquery-ui-1.8.10.custom.min" );
OC_UTIL::addScript( "js" );
OC_UTIL::addStyle( "jquery-ui-1.8.10.custom" );
OC_UTIL::addStyle( "styles" );
// Load Apps
if(!$error and !$RUNTIME_NOAPPS ){
OC_APP::loadApps();
}
/**
* Class for utility functions
*
*/
class OC_UTIL {
public static $scripts=array();
public static $styles=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 = $_SESSION['user_id'];
}
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));
// 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;
}
}
/**
* get the current installed version of ownCloud
* @return array
*/
public static function getVersion(){
return array(1,2,0);
}
/**
* add a javascript file
*
* @param url $url
*/
public static function addScript( $application, $file = null ){
if( is_null( $file )){
$file = $application;
$application = "";
}
self::$scripts[] = "$application/js/$file";
}
/** * add a css file
*
* @param url $url
*/
public static function addStyle( $application, $file = null ){
if( is_null( $file )){
$file = $application;
$application = "";
}
self::$styles[] = "$application/css/$file";
}
/**
* formats a timestamp in the "right" way
*
* @param timestamp $timestamp
*/
public static function formatDate( $timestamp ){
$timeformat='F j, Y, H:i';
return date($timeformat,$timestamp);
}
/**
* Shows a pagenavi widget where you can jump to different pages.
*
* @param int $pagecount
* @param int $page
* @param string $url
* @return html-string
*/
public static function showPageNavi($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);
$tmpl->printPage();
}
}
/**
* 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')){
if($CONFIG_DBTYPE=='sqlite'){
$file=$SERVERROOT.'/'.$CONFIG_DBNAME;
if(file_exists($file)){
$prems=substr(decoct(fileperms($file)),-3);
if(substr($prems,2,1)!='0'){
@chmod($file,0660);
clearstatcache();
$prems=substr(decoct(fileperms($file)),-3);
if(substr($prems,2,1)!='0'){
$errors[]=array('error'=>'SQLite database file ('.$file.') is readable from the web<br/>','hint'=>$permissionsHint);
}
}
}
}
$prems=substr(decoct(fileperms($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;
}
}
/**
* This class manages the hooks. It basically provides two functions: adding
* slots and emitting signals.
*/
class OC_HOOK{
static private $registered = array();
/** * @brief connects a function to a hook
* @param $signalclass class name of emitter
* @param $signalname name of signal
* @param $slotclass class name of slot
* @param $slotname name of slot
* @returns true/false
*
* This function makes it very easy to connect to use hooks.
*
* TODO: write example
*/
static public function connect( $signalclass, $signalname, $slotclass, $slotname ){
// Cerate the data structure
if( !array_key_exists( $signalclass, self::$registered )){
self::$registered[$signalclass] = array();
}
if( !array_key_exists( $signalname, self::$registered[$signalclass] )){
self::$registered[$signalclass][$signalname] = array();
}
// register hook
self::$registered[$signalclass][$signalname][] = array(
"class" => $slotclass,
"name" => $slotname );
// No chance for failure ;-)
return true;
}
/**
* @brief emitts a signal
* @param $signalclass class name of emitter
* @param $signalname name of signal
* @param $params defautl: array() array with additional data
* @returns true if slots exists or false if not
*
* Emits a signal. To get data from the slot use references!
*
* TODO: write example
*/
static public function emit( $signalclass, $signalname, $params = array()){
// Return false if there are no slots
if( !array_key_exists( $signalclass, self::$registered )){
return false;
}
if( !array_key_exists( $signalname, self::$registered[$signalclass] )){
return false;
}
// Call all slots
foreach( $registered[$signalclass][$signalname] as $i ){
call_user_func( array( $i["class"], $i["name"] ), $params );
}
// return true
return true;
}
}
?>