372 lines
12 KiB
PHP
372 lines
12 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Frank Karlitschek
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* @copyright 2010 Frank Karlitschek karlitschek@kde.org
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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// set some stuff
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//ob_start();
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error_reporting(E_ALL | E_STRICT);
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date_default_timezone_set('Europe/Berlin');
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ini_set('arg_separator.output','&');
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ini_set('session.cookie_httponly','1;');
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session_start();
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// calculate the documentroot
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$SERVERROOT=substr(__FILE__,0,-13);
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$DOCUMENTROOT=realpath($_SERVER['DOCUMENT_ROOT']);
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$SERVERROOT=str_replace("\\",'/',$SERVERROOT);
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$SUBURI=substr(realpath($_SERVER["SCRIPT_FILENAME"]),strlen($SERVERROOT));
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$WEBROOT=substr($_SERVER["SCRIPT_NAME"],0,strlen($_SERVER["SCRIPT_NAME"])-strlen($SUBURI));
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if($WEBROOT!='' and $WEBROOT[0]!=='/'){
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$WEBROOT='/'.$WEBROOT;
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}
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// set the right include path
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set_include_path($SERVERROOT.'/lib'.PATH_SEPARATOR.$SERVERROOT.'/config'.PATH_SEPARATOR.$SERVERROOT.'/3dparty'.PATH_SEPARATOR.get_include_path().PATH_SEPARATOR.$SERVERROOT);
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// define runtime variables - unless this already has been done
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if( !isset( $RUNTIME_NOSETUPFS )){
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$RUNTIME_NOSETUPFS = false;
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}
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if( !isset( $RUNTIME_NOAPPS )){
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$RUNTIME_NOAPPS = false;
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}
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// Doing the config stuff first
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require_once('config.php');
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// TODO: we should get rid of this one, too
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// WARNING: to make everything even more confusing, DATADIRECTORY is a var that
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// changes and DATATIRECTORY_ROOT stays the same, but is set by
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// "datadirectory". Any questions?
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$CONFIG_DATADIRECTORY = OC_CONFIG::getValue( "datadirectory", "$SERVERROOT/data" );
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// redirect to https site if configured
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if( OC_CONFIG::getValue( "forcessl", false )){
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if(!isset($_SERVER['HTTPS']) or $_SERVER['HTTPS'] != 'on') {
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$url = "https://". $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
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header("Location: $url");
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exit();
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}
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}
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// load core libs
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require_once('helper.php');
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require_once('database.php');
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require_once('app.php');
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require_once('appconfig.php');
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require_once('files.php');
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require_once('filesystem.php');
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require_once('filestorage.php');
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require_once('fileobserver.php');
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require_once('log.php');
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require_once('user.php');
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require_once('group.php');
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require_once('ocs.php');
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require_once('ocsclient.php');
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require_once('connect.php');
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require_once('remotestorage.php');
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require_once('plugin.php');
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$error=(count(OC_UTIL::checkServer())>0);
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if(!$error){
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OC_PLUGIN::loadPlugins( "" );
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}
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OC_USER::setBackend( OC_CONFIG::getValue( "userbackend", "database" ));
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OC_GROUP::setBackend( OC_CONFIG::getValue( "groupbackend", "database" ));
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// Set up file system unless forbidden
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if(!$error and !$RUNTIME_NOSETUPFS ){
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OC_UTIL::setupFS();
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}
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// Add the stuff we need always
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OC_UTIL::addScript( "jquery-1.5.min" );
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OC_UTIL::addScript( "jquery-ui-1.8.10.custom.min" );
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OC_UTIL::addScript( "js" );
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OC_UTIL::addStyle( "jquery-ui-1.8.10.custom" );
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OC_UTIL::addStyle( "styles" );
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// Load Apps
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if(!$error and !$RUNTIME_NOAPPS ){
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OC_APP::loadApps();
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}
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/**
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* Class for utility functions
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*
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*/
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class OC_UTIL {
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public static $scripts=array();
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public static $styles=array();
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private static $fsSetup=false;
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// Can be set up
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public static function setupFS( $user = "", $root = "files" ){// configure the initial filesystem based on the configuration
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if(self::$fsSetup){//setting up the filesystem twice can only lead to trouble
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return false;
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}
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// Global Variables
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global $SERVERROOT;
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global $CONFIG_DATADIRECTORY;
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$CONFIG_DATADIRECTORY_ROOT = OC_CONFIG::getValue( "datadirectory", "$SERVERROOT/data" );
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$CONFIG_BACKUPDIRECTORY = OC_CONFIG::getValue( "backupdirectory", "$SERVERROOT/backup" );
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// Create root dir
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if(!is_dir($CONFIG_DATADIRECTORY_ROOT)){
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@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)");
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}
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// If we are not forced to load a specific user we load the one that is logged in
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if( $user == "" && OC_USER::isLoggedIn()){
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$user = $_SESSION['user_id'];
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}
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if( $user != "" ){ //if we aren't logged in, there is no use to set up the filesystem
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//first set up the local "root" storage and the backupstorage if needed
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$rootStorage=OC_FILESYSTEM::createStorage('local',array('datadir'=>$CONFIG_DATADIRECTORY));
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if( OC_CONFIG::getValue( "enablebackup", false )){
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// This creates the Directorys recursively
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if(!is_dir( "$CONFIG_BACKUPDIRECTORY/$user/$root" )){
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mkdir( "$CONFIG_BACKUPDIRECTORY/$user/$root", 0755, true );
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}
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$backupStorage=OC_FILESYSTEM::createStorage('local',array('datadir'=>$CONFIG_BACKUPDIRECTORY));
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$backup=new OC_FILEOBSERVER_BACKUP(array('storage'=>$backupStorage));
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$rootStorage->addObserver($backup);
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}
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OC_FILESYSTEM::mount($rootStorage,'/');
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$CONFIG_DATADIRECTORY = "$CONFIG_DATADIRECTORY_ROOT/$user/$root";
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if( !is_dir( $CONFIG_DATADIRECTORY )){
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mkdir( $CONFIG_DATADIRECTORY, 0755, true );
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}
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// TODO: find a cool way for doing this
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// //set up the other storages according to the system settings
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// foreach($CONFIG_FILESYSTEM as $storageConfig){
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// if(OC_FILESYSTEM::hasStorageType($storageConfig['type'])){
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// $arguments=$storageConfig;
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// unset($arguments['type']);
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// unset($arguments['mountpoint']);
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// $storage=OC_FILESYSTEM::createStorage($storageConfig['type'],$arguments);
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// if($storage){
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// OC_FILESYSTEM::mount($storage,$storageConfig['mountpoint']);
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// }
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// }
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// }
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//jail the user into his "home" directory
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OC_FILESYSTEM::chroot("/$user/$root");
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self::$fsSetup=true;
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}
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}
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/**
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* get the current installed version of ownCloud
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* @return array
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*/
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public static function getVersion(){
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return array(1,2,0);
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}
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/**
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* add a javascript file
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*
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* @param url $url
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*/
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public static function addScript( $application, $file = null ){
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if( is_null( $file )){
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$file = $application;
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$application = "";
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}
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self::$scripts[] = "$application/js/$file";
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}
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/**
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* add a css file
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*
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* @param url $url
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*/
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public static function addStyle( $application, $file = null ){
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if( is_null( $file )){
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$file = $application;
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$application = "";
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}
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self::$styles[] = "$application/css/$file";
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}
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/**
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* check if the current server configuration is suitable for ownCloud
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* @return array arrays with error messages and hints
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*/
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public static function checkServer(){
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global $SERVERROOT;
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global $CONFIG_DATADIRECTORY;
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$CONFIG_DATADIRECTORY_ROOT = OC_CONFIG::getValue( "datadirectory", "$SERVERROOT/data" );;
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$CONFIG_BACKUPDIRECTORY = OC_CONFIG::getValue( "backupdirectory", "$SERVERROOT/backup" );
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$CONFIG_INSTALLED = OC_CONFIG::getValue( "installed", false );
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$errors=array();
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//check for database drivers
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if(!is_callable('sqlite_open') and !is_callable('mysql_connect')){
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$errors[]=array('error'=>'No database drivers (sqlite or mysql) installed.<br/>','hint'=>'');//TODO: sane hint
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}
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$CONFIG_DBTYPE = OC_CONFIG::getValue( "dbtype", "sqlite" );
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$CONFIG_DBNAME = OC_CONFIG::getValue( "dbname", "owncloud" );
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//try to get the username the httpd server runs on, used in hints
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$stat=stat($_SERVER['DOCUMENT_ROOT']);
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if(is_callable('posix_getpwuid')){
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$serverUser=posix_getpwuid($stat['uid']);
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$serverUser='\''.$serverUser['name'].'\'';
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}else{
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$serverUser='\'www-data\' for ubuntu/debian';//TODO: try to detect the distro and give a guess based on that
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}
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//common hint for all file permissons error messages
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$permissionsHint="Permissions can usually be fixed by setting the owner of the directory to the user the web server runs as ($serverUser)";
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//check for correct file permissions
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if(!stristr(PHP_OS, 'WIN')){
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if($CONFIG_DBTYPE=='sqlite'){
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$file=$SERVERROOT.'/'.$CONFIG_DBNAME;
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if(file_exists($file)){
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$prems=substr(decoct(fileperms($file)),-3);
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if(substr($prems,2,1)!='0'){
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@chmod($file,0660);
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clearstatcache();
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$prems=substr(decoct(fileperms($file)),-3);
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if(substr($prems,2,1)!='0'){
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$errors[]=array('error'=>'SQLite database file ('.$file.') is readable from the web<br/>','hint'=>$permissionsHint);
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}
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}
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}
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}
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$prems=substr(decoct(fileperms($CONFIG_DATADIRECTORY_ROOT)),-3);
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if(substr($prems,-1)!='0'){
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OC_HELPER::chmodr($CONFIG_DATADIRECTORY_ROOT,0770);
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clearstatcache();
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$prems=substr(decoct(fileperms($CONFIG_DATADIRECTORY_ROOT)),-3);
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if(substr($prems,2,1)!='0'){
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$errors[]=array('error'=>'Data directory ('.$CONFIG_DATADIRECTORY_ROOT.') is readable from the web<br/>','hint'=>$permissionsHint);
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}
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}
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if( OC_CONFIG::getValue( "enablebackup", false )){
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$prems=substr(decoct(fileperms($CONFIG_BACKUPDIRECTORY)),-3);
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if(substr($prems,-1)!='0'){
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OC_HELPER::chmodr($CONFIG_BACKUPDIRECTORY,0770);
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clearstatcache();
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$prems=substr(decoct(fileperms($CONFIG_BACKUPDIRECTORY)),-3);
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if(substr($prems,2,1)!='0'){
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$errors[]=array('error'=>'Data directory ('.$CONFIG_BACKUPDIRECTORY.') is readable from the web<br/>','hint'=>$permissionsHint);
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}
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}
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}
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}else{
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//TODO: premisions checks for windows hosts
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}
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if(is_dir($CONFIG_DATADIRECTORY_ROOT) and !is_writable($CONFIG_DATADIRECTORY_ROOT)){
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$errors[]=array('error'=>'Data directory ('.$CONFIG_DATADIRECTORY_ROOT.') not writable by ownCloud<br/>','hint'=>$permissionsHint);
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}
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//TODO: check for php modules
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return $errors;
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}
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}
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/**
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* This class manages the hooks. It basically provides two functions: adding
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* slots and emitting signals.
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*/
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class OC_HOOK{
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static private $registered = array();
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/**
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* @brief connects a function to a hook
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* @param $signalclass class name of emitter
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* @param $signalname name of signal
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* @param $slotclass class name of slot
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* @param $slotname name of slot
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* @returns true/false
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*
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* This function makes it very easy to connect to use hooks.
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*
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* TODO: write example
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*/
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static public function connect( $signalclass, $signalname, $slotclass, $slotname ){
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// Cerate the data structure
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if( !array_key_exists( $signalclass, self::$registered )){
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self::$registered[$signalclass] = array();
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}
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if( !array_key_exists( $signalname, self::$registered[$signalclass] )){
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self::$registered[$signalclass][$signalname] = array();
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}
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// register hook
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self::$registered[$signalclass][$signalname][] = array(
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"class" => $slotclass,
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"name" => $slotname );
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// No chance for failure ;-)
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return true;
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}
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/**
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* @brief emitts a signal
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* @param $signalclass class name of emitter
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* @param $signalname name of signal
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* @param $params defautl: array() array with additional data
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* @returns true if slots exists or false if not
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*
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* Emits a signal. To get data from the slot use references!
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*
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* TODO: write example
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*/
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static public function emit( $signalclass, $signalname, $params = array()){
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// Return false if there are no slots
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if( !array_key_exists( $signalclass, self::$registered )){
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return false;
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}
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if( !array_key_exists( $signalname, self::$registered[$signalclass] )){
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return false;
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}
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// Call all slots
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foreach( $registered[$signalclass][$signalname] as $i ){
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call_user_func( array( $i["class"], $i["name"] ), $params );
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}
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// return true
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return true;
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}
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}
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?>
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