server/lib/base.php
2012-04-13 01:59:05 +02:00

402 lines
13 KiB
PHP
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<?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/>.
*
*/
/**
* Class that is a namespace for all global OC variables
* No, we can not put this class in its own file because it is used by
* OC_autoload!
*/
class OC{
/**
* Assoziative array for autoloading. classname => filename
*/
public static $CLASSPATH = array();
/**
* $_SERVER['DOCUMENTROOT'] but without symlinks
*/
public static $DOCUMENTROOT = '';
/**
* The installation path for owncloud on the server (e.g. /srv/http/owncloud)
*/
public static $SERVERROOT = '';
/**
* the current request path relative to the owncloud root (e.g. files/index.php)
*/
public static $SUBURI = '';
/**
* the owncloud root path for http requests (e.g. owncloud/)
*/
public static $WEBROOT = '';
/**
* the folder that stores that data files for the filesystem of the user (e.g. /srv/http/owncloud/data/myusername/files)
*/
public static $CONFIG_DATADIRECTORY = '';
/**
* the folder that stores the data for the root filesystem (e.g. /srv/http/owncloud/data)
*/
public static $CONFIG_DATADIRECTORY_ROOT = '';
/**
* The installation path of the 3rdparty folder on the server (e.g. /srv/http/owncloud/3rdparty)
*/
public static $THIRDPARTYROOT = '';
/**
* the root path of the 3rdparty folder for http requests (e.g. owncloud/3rdparty)
*/
public static $THIRDPARTYWEBROOT = '';
/**
* The installation path of the apps folder on the server (e.g. /srv/http/owncloud)
*/
public static $APPSROOT = '';
/**
* the root path of the apps folder for http requests (e.g. owncloud)
*/
public static $APPSWEBROOT = '';
/**
* SPL autoload
*/
public static function autoload($className){
if(array_key_exists($className,OC::$CLASSPATH)){
require_once OC::$CLASSPATH[$className];
}
elseif(strpos($className,'OC_')===0){
require_once strtolower(str_replace('_','/',substr($className,3)) . '.php');
}
elseif(strpos($className,'Sabre_')===0) {
require_once str_replace('_','/',$className) . '.php';
}
elseif(strpos($className,'Test_')===0){
require_once 'tests/lib/'.strtolower(str_replace('_','/',substr($className,5)) . '.php');
}
}
/**
* autodetects the formfactor of the used device
* default -> the normal desktop browser interface
* mobile -> interface for smartphones
* tablet -> interface for tablets
* standalone -> the default interface but without header, footer and sidebar. just the application. useful to ue just a specific app on the desktop in a standalone window.
*/
public static function detectFormfactor(){
// please add more useragent strings for other devices
if(isset($_SERVER['HTTP_USER_AGENT'])){
if(stripos($_SERVER['HTTP_USER_AGENT'],'ipad')>0) {
$mode='tablet';
}elseif(stripos($_SERVER['HTTP_USER_AGENT'],'iphone')>0){
$mode='mobile';
}elseif((stripos($_SERVER['HTTP_USER_AGENT'],'N9')>0) and (stripos($_SERVER['HTTP_USER_AGENT'],'nokia')>0)){
$mode='mobile';
}else{
$mode='default';
}
}else{
$mode='default';
}
return($mode);
}
public static function initPaths(){
// calculate the documentroot
OC::$DOCUMENTROOT=realpath($_SERVER['DOCUMENT_ROOT']);
OC::$SERVERROOT=str_replace("\\",'/',substr(__FILE__,0,-13));
OC::$SUBURI=substr(realpath($_SERVER["SCRIPT_FILENAME"]),strlen(OC::$SERVERROOT));
$scriptName=$_SERVER["SCRIPT_NAME"];
if(substr($scriptName,-1)=='/'){
$scriptName.='index.php';
//make sure suburi follows the same rules as scriptName
if(substr(OC::$SUBURI,-9)!='index.php'){
if(substr(OC::$SUBURI,-1)!='/'){
OC::$SUBURI=OC::$SUBURI.'/';
}
OC::$SUBURI=OC::$SUBURI.'index.php';
}
}
OC::$WEBROOT=substr($scriptName,0,strlen($scriptName)-strlen(OC::$SUBURI));
// try a new way to detect the WEBROOT which is simpler and also works with the app directory outside the owncloud folder. let´s see if this works for everybody
// OC::$WEBROOT=substr(OC::$SERVERROOT,strlen(OC::$DOCUMENTROOT));
if(OC::$WEBROOT!='' and OC::$WEBROOT[0]!=='/'){
OC::$WEBROOT='/'.OC::$WEBROOT;
}
// ensure we can find OC_Config
set_include_path(
OC::$SERVERROOT.'/lib'.PATH_SEPARATOR.
get_include_path()
);
// search the 3rdparty folder
if(OC_Config::getValue('3rdpartyroot', '')<>'' and OC_Config::getValue('3rdpartyurl', '')<>''){
OC::$THIRDPARTYROOT=OC_Config::getValue('3rdpartyroot', '');
OC::$THIRDPARTYWEBROOT=OC_Config::getValue('3rdpartyurl', '');
}elseif(file_exists(OC::$SERVERROOT.'/3rdparty')){
OC::$THIRDPARTYROOT=OC::$SERVERROOT;
OC::$THIRDPARTYWEBROOT=OC::$WEBROOT;
}elseif(file_exists(OC::$SERVERROOT.'/../3rdparty')){
OC::$THIRDPARTYWEBROOT=rtrim(dirname(OC::$WEBROOT), '/');
OC::$THIRDPARTYROOT=rtrim(dirname(OC::$SERVERROOT), '/');
}else{
echo("3rdparty directory not found! Please put the ownCloud 3rdparty folder in the ownCloud folder or the folder above. You can also configure the location in the config.php file.");
exit;
}
// search the apps folder
if(file_exists(OC::$SERVERROOT.'/apps')){
OC::$APPSROOT=OC::$SERVERROOT;
OC::$APPSWEBROOT=OC::$WEBROOT;
}elseif(file_exists(OC::$SERVERROOT.'/../apps')){
OC::$APPSWEBROOT=rtrim(dirname(OC::$WEBROOT), '/');
OC::$APPSROOT=rtrim(dirname(OC::$SERVERROOT), '/');
}else{
echo("apps directory not found! Please put the ownCloud apps folder in the ownCloud folder or the folder above. You can also configure the location in the config.php file.");
exit;
}
// set the right include path
set_include_path(
OC::$SERVERROOT.'/lib'.PATH_SEPARATOR.
OC::$SERVERROOT.'/config'.PATH_SEPARATOR.
OC::$THIRDPARTYROOT.'/3rdparty'.PATH_SEPARATOR.
OC::$APPSROOT.PATH_SEPARATOR.
OC::$APPSROOT.'/apps'.PATH_SEPARATOR.
get_include_path().PATH_SEPARATOR.
OC::$SERVERROOT
);
}
public static function checkInstalled() {
// Redirect to installer if not installed
if (!OC_Config::getValue('installed', false) && OC::$SUBURI != '/index.php') {
$url = 'http://'.$_SERVER['SERVER_NAME'].OC::$WEBROOT.'/index.php';
header("Location: $url");
exit();
}
}
public static function checkSSL() {
// redirect to https site if configured
if( OC_Config::getValue( "forcessl", false )){
ini_set("session.cookie_secure", "on");
if(!isset($_SERVER['HTTPS']) or $_SERVER['HTTPS'] != 'on') {
$url = "https://". $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
header("Location: $url");
exit();
}
}
}
public static function checkUpgrade() {
if(OC_Config::getValue('installed', false)){
$installedVersion=OC_Config::getValue('version','0.0.0');
$currentVersion=implode('.',OC_Util::getVersion());
if (version_compare($currentVersion, $installedVersion, '>')) {
$result=OC_DB::updateDbFromStructure(OC::$SERVERROOT.'/db_structure.xml');
if(!$result){
echo 'Error while upgrading the database';
die();
}
if(file_exists(OC::$SERVERROOT."/config/config.php") and !is_writable(OC::$SERVERROOT."/config/config.php")) {
$tmpl = new OC_Template( '', 'error', 'guest' );
$tmpl->assign('errors',array(1=>array('error'=>"Can't write into config directory 'config'",'hint'=>"You can usually fix this by giving the webserver user write access to the config directory in owncloud")));
$tmpl->printPage();
exit;
}
OC_Config::setValue('version',implode('.',OC_Util::getVersion()));
}
OC_App::updateApps();
}
}
public static function initTemplateEngine() {
// if the formfactor is not yet autodetected do the autodetection now. For possible forfactors check the detectFormfactor documentation
if(!isset($_SESSION['formfactor'])){
$_SESSION['formfactor']=OC::detectFormfactor();
}
// allow manual override via GET parameter
if(isset($_GET['formfactor'])){
$_SESSION['formfactor']=$_GET['formfactor'];
}
// Add the stuff we need always
OC_Util::addScript( "jquery-1.6.4.min" );
OC_Util::addScript( "jquery-ui-1.8.16.custom.min" );
OC_Util::addScript( "jquery-showpassword" );
OC_Util::addScript( "jquery.infieldlabel.min" );
OC_Util::addScript( "jquery-tipsy" );
OC_Util::addScript( "oc-dialogs" );
OC_Util::addScript( "js" );
OC_Util::addScript( "eventsource" );
OC_Util::addScript( "config" );
//OC_Util::addScript( "multiselect" );
OC_Util::addScript('search','result');
OC_Util::addStyle( "styles" );
OC_Util::addStyle( "multiselect" );
OC_Util::addStyle( "jquery-ui-1.8.16.custom" );
OC_Util::addStyle( "jquery-tipsy" );
}
public static function initSession() {
ini_set('session.cookie_httponly','1;');
session_start();
}
public static function init(){
// register autoloader
spl_autoload_register(array('OC','autoload'));
setlocale(LC_ALL, 'en_US.UTF-8');
// set some stuff
//ob_start();
error_reporting(E_ALL | E_STRICT);
if (defined('DEBUG') && DEBUG){
ini_set('display_errors', 1);
}
date_default_timezone_set('Europe/Berlin');
ini_set('arg_separator.output','&amp;');
//try to configure php to enable big file uploads.
//this doesn´t work always depending on the webserver and php configuration.
//Let´s try to overwrite some defaults anyways
//try to set the maximum execution time to 60min
@set_time_limit(3600);
@ini_set('max_execution_time',3600);
@ini_set('max_input_time',3600);
//try to set the maximum filesize to 10G
@ini_set('upload_max_filesize','10G');
@ini_set('post_max_size','10G');
@ini_set('file_uploads','50');
//try to set the session lifetime to 60min
@ini_set('gc_maxlifetime','3600');
//set http auth headers for apache+php-cgi work around
if (isset($_SERVER['HTTP_AUTHORIZATION']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['HTTP_AUTHORIZATION'], $matches))
{
list($name, $password) = explode(':', base64_decode($matches[1]));
$_SERVER['PHP_AUTH_USER'] = strip_tags($name);
$_SERVER['PHP_AUTH_PW'] = strip_tags($password);
}
//set http auth headers for apache+php-cgi work around if variable gets renamed by apache
if (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['REDIRECT_HTTP_AUTHORIZATION'], $matches))
{
list($name, $password) = explode(':', base64_decode($matches[1]));
$_SERVER['PHP_AUTH_USER'] = strip_tags($name);
$_SERVER['PHP_AUTH_PW'] = strip_tags($password);
}
self::initPaths();
// register the stream wrappers
require_once('streamwrappers.php');
stream_wrapper_register("fakedir", "OC_FakeDirStream");
stream_wrapper_register('static', 'OC_StaticStreamWrapper');
stream_wrapper_register('close', 'OC_CloseStreamWrapper');
self::checkInstalled();
self::checkSSL();
self::initSession();
self::initTemplateEngine();
self::checkUpgrade();
$errors=OC_Util::checkServer();
if(count($errors)>0) {
OC_Template::printGuestPage('', 'error', array('errors' => $errors));
exit;
}
// TODO: we should get rid of this one, too
// WARNING: to make everything even more confusing,
// DATADIRECTORY is a var that changes and DATADIRECTORY_ROOT
// stays the same, but is set by "datadirectory".
// Any questions?
OC::$CONFIG_DATADIRECTORY = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
// User and Groups
if( !OC_Config::getValue( "installed", false )){
$_SESSION['user_id'] = '';
}
OC_User::useBackend( OC_Config::getValue( "userbackend", "database" ));
OC_Group::useBackend(new OC_Group_Database());
// Set up file system unless forbidden
global $RUNTIME_NOSETUPFS;
if(!$RUNTIME_NOSETUPFS ){
OC_Util::setupFS();
}
// Load Apps
// This includes plugins for users and filesystems as well
global $RUNTIME_NOAPPS;
global $RUNTIME_APPTYPES;
if(!$RUNTIME_NOAPPS ){
if($RUNTIME_APPTYPES){
OC_App::loadApps($RUNTIME_APPTYPES);
}else{
OC_App::loadApps();
}
}
// Check for blacklisted files
OC_Hook::connect('OC_Filesystem','write','OC_Filesystem','isBlacklisted');
//make sure temporary files are cleaned up
register_shutdown_function(array('OC_Helper','cleanTmp'));
}
}
// define runtime variables - unless this already has been done
if( !isset( $RUNTIME_NOSETUPFS )){
$RUNTIME_NOSETUPFS = false;
}
if( !isset( $RUNTIME_NOAPPS )){
$RUNTIME_NOAPPS = false;
}
if(!function_exists('get_temp_dir')) {
function get_temp_dir() {
if( $temp=ini_get('upload_tmp_dir') ) return $temp;
if( $temp=getenv('TMP') ) return $temp;
if( $temp=getenv('TEMP') ) return $temp;
if( $temp=getenv('TMPDIR') ) return $temp;
$temp=tempnam(__FILE__,'');
if (file_exists($temp)) {
unlink($temp);
return dirname($temp);
}
if( $temp=sys_get_temp_dir()) return $temp;
return null;
}
}
OC::init();