server/lib/base.php

740 lines
19 KiB
PHP

<?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);
error_reporting( E_ERROR | E_PARSE | E_WARNING ); // MDB2 gives loads of strict error, disabling for now
date_default_timezone_set('Europe/Berlin');
ini_set('arg_separator.output','&amp;');
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(get_include_path().PATH_SEPARATOR.$SERVERROOT.PATH_SEPARATOR.$SERVERROOT.'/inc'.PATH_SEPARATOR.$SERVERROOT.'/config');
// define runtime variables - unless this already has been done
if( !isset( $RUNTIME_NOSETUPFS )){
$RUNTIME_NOSETUPFS = false;
}
// define default config values
$CONFIG_INSTALLED=false;
$CONFIG_DATADIRECTORY=$SERVERROOT.'/data';
$CONFIG_BACKUPDIRECTORY=$SERVERROOT.'/backup';
$CONFIG_HTTPFORCESSL=false;
$CONFIG_ENABLEBACKUP=false;
$CONFIG_DATEFORMAT='j M Y G:i';
$CONFIG_DBNAME='owncloud';
$CONFIG_DBTYPE='sqlite';
$CONFIG_FILESYSTEM=array();
// include the generated configfile
@include_once($SERVERROOT.'/config/config.php');
$CONFIG_DATADIRECTORY_ROOT=$CONFIG_DATADIRECTORY;// store this in a seperate variable so we can change the data directory to jail users.
// redirect to https site if configured
if(isset($CONFIG_HTTPFORCESSL) and $CONFIG_HTTPFORCESSL){
if(!isset($_SERVER['HTTPS']) or $_SERVER['HTTPS'] != 'on') {
$url = "https://". $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
header("Location: $url");
exit;
}
}
// load core libs
oc_require_once('app.php');
oc_require_once('files.php');
oc_require_once('filesystem.php');
oc_require_once('filestorage.php');
oc_require_once('fileobserver.php');
oc_require_once('log.php');
oc_require_once('config.php');
oc_require_once('user.php');
oc_require_once('ocs.php');
oc_require_once('connect.php');
oc_require_once('remotestorage.php');
oc_require_once('plugin.php');
oc_require_once('helper.php');
OC_PLUGIN::loadPlugins( "" );
if(!isset($CONFIG_BACKEND)){
$CONFIG_BACKEND='database';
}
OC_USER::setBackend($CONFIG_BACKEND);
// Set up file system unless forbidden
if( !$RUNTIME_NOSETUPFS ){
OC_UTIL::setupFS();
}
// Add the stuff we need always
OC_UTIL::addPersonalMenuEntry( array( "file" => "index.php?logout=1", "name" => "Logout" ));
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" );
// Require all appinfo.php
OC_APP::init();
// check if the server is correctly configured for ownCloud
OC_UTIL::checkserver();
/**
* Class for utility functions
*
*/
class OC_UTIL {
public static $scripts=array();
public static $styles=array();
public static $adminpages = array();
public static $navigation = array();
public static $personalmenu = 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_ROOT;
global $CONFIG_DATADIRECTORY;
global $CONFIG_BACKUPDIRECTORY;
global $CONFIG_ENABLEBACKUP;
global $CONFIG_FILESYSTEM;
// Create root dir
if(!is_dir($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['username_clean'];
}
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($CONFIG_ENABLEBACKUP){
// This creates the Directorys recursively
if(!is_dir( "$CONFIG_BACKUPDIRECTORY/$user/$root" )){
mkdir( "$CONFIG_BACKUPDIRECTORY/$user/$root", 0x755, 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( $CONFIG_DATADIRECTORY, 0x755, true );
}
//set up the other storages according to the system settings
foreach($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";
}
/**
* add an entry to the main navigation
*
* @param array $entry
*/
public static function addNavigationEntry( $entry){
OC_UTIL::$navigation[] = $entry;
}
/**
* add administration pages
*
* @param array $entry
*/
public static function addAdminPage( $entry){
OC_UTIL::$adminpages[] = $entry;
}
/**
* add an entry to the personal menu
*
* @param array $entry
*/
public static function addPersonalMenuEntry( $entry){
OC_UTIL::$personalmenu[] = $entry;
}
/**
* check if the current server configuration is suitable for ownCloud
*
*/
public static function checkServer(){
global $SERVERROOT;
global $CONFIG_DATADIRECTORY_ROOT;
global $CONFIG_BACKUPDIRECTORY;
global $CONFIG_ENABLEBACKUP;
global $CONFIG_INSTALLED;
$error='';
if(!is_callable('sqlite_open') and !is_callable('mysql_connect')){
$error.='No database drivers (sqlite or mysql) installed.<br/>';
}
global $CONFIG_DBTYPE;
global $CONFIG_DBNAME;
if(!stristr(PHP_OS, 'WIN')){
if($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'){
$error.='SQLite database file ('.$file.') is readable from the web<br/>';
}
}
}
}
$prems=substr(decoct(fileperms($CONFIG_DATADIRECTORY_ROOT)),-3);
if(substr($prems,-1)!='0'){
chmodr($CONFIG_DATADIRECTORY_ROOT,0770);
clearstatcache();
$prems=substr(decoct(fileperms($CONFIG_DATADIRECTORY_ROOT)),-3);
if(substr($prems,2,1)!='0'){
$error.='Data directory ('.$CONFIG_DATADIRECTORY_ROOT.') is readable from the web<br/>';
}
}
if($CONFIG_ENABLEBACKUP){
$prems=substr(decoct(fileperms($CONFIG_BACKUPDIRECTORY)),-3);
if(substr($prems,-1)!='0'){
chmodr($CONFIG_BACKUPDIRECTORY,0770);
clearstatcache();
$prems=substr(decoct(fileperms($CONFIG_BACKUPDIRECTORY)),-3);
if(substr($prems,2,1)!='0'){
$error.='Data directory ('.$CONFIG_BACKUPDIRECTORY.') is readable from the web<br/>';
}
}
}
}else{
//TODO: premisions checks for windows hosts
}
if($error){
die($error);
}
}
/**
* check if we need to use the layout optimized for smaller screen, currently only checks for iPhone/Android
* @return bool
*/
public static function hasSmallScreen(){
$userAgent=strtolower($_SERVER['HTTP_USER_AGENT']);
if(strpos($userAgent,'android') or strpos($userAgent,'iphone') or strpos($userAgent,'ipod')){//todo, add support for more devices
return true;
}
return false;
}
}
/**
* Class for database access
*
*/
class OC_DB {
static private $DBConnection=false;
static private $schema=false;
static private $affected=0;
static private $result=false;
/**
* connect to the datbase if not already connected
*/
public static function connect(){
global $CONFIG_DBNAME;
global $CONFIG_DBHOST;
global $CONFIG_DBUSER;
global $CONFIG_DBPASSWORD;
global $CONFIG_DBTYPE;
global $DOCUMENTROOT;
global $SERVERROOT;
@oc_require_once('MDB2.php');
if(!self::$DBConnection){
$options = array(
'portability' => MDB2_PORTABILITY_ALL,
'log_line_break' => '<br>',
'idxname_format' => '%s',
'debug' => true,
'quote_identifier' => true,
);
if($CONFIG_DBTYPE=='sqlite'){
$dsn = array(
'phptype' => 'sqlite',
'database' => $SERVERROOT.'/'.$CONFIG_DBNAME,
'mode' => '0644',
);
}elseif($CONFIG_DBTYPE=='mysql'){
$dsn = array(
'phptype' => 'mysql',
'username' => $CONFIG_DBUSER,
'password' => $CONFIG_DBPASSWORD,
'hostspec' => $CONFIG_DBHOST,
'database' => $CONFIG_DBNAME,
);
}elseif($CONFIG_DBTYPE=='pgsql'){
$dsn = array(
'phptype' => 'pgsql',
'username' => $CONFIG_DBUSER,
'password' => $CONFIG_DBPASSWORD,
'hostspec' => $CONFIG_DBHOST,
'database' => $CONFIG_DBNAME,
);
}
self::$DBConnection=MDB2::factory($dsn,$options);
if (PEAR::isError(self::$DBConnection)) {
echo('<b>can not connect to database, using '.$CONFIG_DBTYPE.'. ('.self::$DBConnection->getUserInfo().')</center>');
$error=self::$DBConnection->getMessage();
error_log("$error");
error_log(self::$DBConnection->getUserInfo());
die($error);
}
self::$DBConnection->setFetchMode(MDB2_FETCHMODE_ASSOC);
}
}
public static function connectScheme(){
self::connect();
@oc_require_once('MDB2/Schema.php');
if(!self::$schema){
self::$schema=&MDB2_Schema::factory(self::$DBConnection);
}
}
/**
* executes a query on the database
*
* @param string $cmd
* @return result-set
*/
static function query($cmd){
global $CONFIG_DBTYPE;
if(!trim($cmd)){
return false;
}
OC_DB::connect();
//fix differences between sql versions
//differences in escaping of table names (` for mysql)
if($CONFIG_DBTYPE=='sqlite'){
$cmd=str_replace('`','\'',$cmd);
}elseif($CONFIG_DBTYPE=='pgsql'){
$cmd=str_replace('`','"',$cmd);
}
$result=self::$DBConnection->exec($cmd);
if (PEAR::isError($result)) {
$entry='DB Error: "'.$result->getMessage().'"<br />';
$entry.='Offending command was: '.$cmd.'<br />';
error_log($entry);
die($entry);
}else{
self::$affected=$result;
}
self::$result=$result;
return $result;
}
/**
* executes a query on the database and returns the result in an array
*
* @param string $cmd
* @return result-set
*/
static function select($cmd){
OC_DB::connect();
global $CONFIG_DBTYPE;
//fix differences between sql versions
//differences in escaping of table names (` for mysql)
if($CONFIG_DBTYPE=='sqlite'){
$cmd=str_replace('`','\'',$cmd);
}elseif($CONFIG_DBTYPE=='pgsql'){
$cmd=str_replace('`','"',$cmd);
}
$result=self::$DBConnection->queryAll($cmd);
if (PEAR::isError($result)){
$entry='DB Error: "'.$result->getMessage().'"<br />';
$entry.='Offending command was: '.$cmd.'<br />';
die($entry);
}
return $result;
}
/**
* executes multiply queries on the database
*
* @param string $cmd
* @return result-set
*/
static function multiquery($cmd) {
$queries=explode(';',$cmd);
foreach($queries as $query){
OC_DB::query($query);
}
return true;
}
/**
* closing a db connection
*
* @return bool
*/
static function close() {
self::$DBConnection->disconnect();
self::$DBConnection=false;
}
/**
* Returning primarykey if last statement was an insert.
*
* @return primarykey
*/
static function insertid() {
$id=self::$DBConnection->lastInsertID();
return $id;
}
/**
* Returning number of rows in a result
*
* @param resultset $result
* @return int
*/
static function numrows($result) {
$result->numRows();
}
/**
* Returning number of affected rows
*
* @return int
*/
static function affected_rows() {
return self::$affected;
}
/**
* get a field from the resultset
*
* @param resultset $result
* @param int $i
* @param int $field
* @return unknown
*/
static function result($result, $i, $field) {
$tmp=$result->fetchRow(MDB2_FETCHMODE_ASSOC,$i);
$tmp=$tmp[$field];
return($tmp);
}
/**
* get data-array from resultset
*
* @param resultset $result
* @return data
*/
static function fetch_assoc($result){
return $result->fetchRow(MDB2_FETCHMODE_ASSOC);
}
/**
* Freeing resultset (performance)
*
* @param unknown_type $result
* @return bool
*/
static function free_result() {
if(self::$result){
self::$result->free();
self::$result=false;
}
}
static public function disconnect(){
if(self::$DBConnection){
self::$DBConnection->disconnect();
self::$DBConnection=false;
}
}
/**
* escape strings so they can be used in queries
*
* @param string string
* @return string
*/
static function escape($string){
OC_DB::connect();
return self::$DBConnection->escape($string);
}
static function getDbStructure($file){
OC_DB::connectScheme();
$definition = self::$schema->getDefinitionFromDatabase();
$dump_options = array(
'output_mode' => 'file',
'output' => $file,
'end_of_line' => "\n"
);
self::$schema->dumpDatabase($definition, $dump_options, MDB2_SCHEMA_DUMP_STRUCTURE);
}
static function createDbFromStructure($file){
OC_DB::connectScheme();
global $CONFIG_DBNAME;
global $CONFIG_DBTABLEPREFIX;
$content=file_get_contents($file);
$file2=tempnam(sys_get_temp_dir(),'oc_db_scheme_');
$content=str_replace('*dbname*',$CONFIG_DBNAME,$content);
$content=str_replace('*dbprefix*',$CONFIG_DBTABLEPREFIX,$content);
file_put_contents($file2,$content);
$definition=@self::$schema->parseDatabaseDefinitionFile($file2);
unlink($file2);
if($definition instanceof MDB2_Schema_Error){
die($definition->getMessage() . ': ' . $definition->getUserInfo());
}
$ret=@self::$schema->createDatabase($definition);
if($ret instanceof MDB2_Error) {
die ($ret->getMessage() . ': ' . $ret->getUserInfo());
}else{
return true;
}
}
}
//custom require/include functions because not all hosts allow us to set the include path
function oc_require($file){
global $SERVERROOT;
global $DOCUMENTROOT;
global $WEBROOT;
global $CONFIG_DBNAME;
global $CONFIG_DBHOST;
global $CONFIG_DBUSER;
global $CONFIG_DBPASSWORD;
global $CONFIG_DBTYPE;
global $CONFIG_DATADIRECTORY;
global $CONFIG_HTTPFORCESSL;
global $CONFIG_DATEFORMAT;
global $CONFIG_INSTALLED;
if(is_file($file)){
return require($file);
}
elseif(is_file($SERVERROOT.'/'.$file)){
return require($SERVERROOT.'/'.$file);
}
elseif(is_file($SERVERROOT.'/lib/'.$file)){
return require($SERVERROOT.'/lib/'.$file);
}
elseif(is_file($SERVERROOT.'/3dparty/'.$file)){
return require($SERVERROOT.'/3dparty/'.$file);
}
}
function oc_require_once($file){
global $SERVERROOT;
global $DOCUMENTROOT;
global $WEBROOT;
global $CONFIG_DBNAME;
global $CONFIG_DBHOST;
global $CONFIG_DBUSER;
global $CONFIG_DBPASSWORD;
global $CONFIG_DBTYPE;
global $CONFIG_DATADIRECTORY;
global $CONFIG_HTTPFORCESSL;
global $CONFIG_DATEFORMAT;
global $CONFIG_INSTALLED;
if(is_file($file)){
return require_once($file);
}
elseif(is_file($SERVERROOT.'/'.$file)){
return require_once($SERVERROOT.'/'.$file);
}
elseif(is_file($SERVERROOT.'/lib/'.$file)){
return require_once($SERVERROOT.'/lib/'.$file);
}
elseif(is_file($SERVERROOT.'/3dparty/'.$file)){
return require_once($SERVERROOT.'/3dparty/'.$file);
}
}
function oc_include($file){
global $SERVERROOT;
global $DOCUMENTROOT;
global $WEBROOT;
global $CONFIG_DBNAME;
global $CONFIG_DBHOST;
global $CONFIG_DBUSER;
global $CONFIG_DBPASSWORD;
global $CONFIG_DBTYPE;
global $CONFIG_DATADIRECTORY;
global $CONFIG_HTTPFORCESSL;
global $CONFIG_DATEFORMAT;
global $CONFIG_INSTALLED;
if(is_file($file)){
return include($file);
}
elseif(is_file($SERVERROOT.'/'.$file)){
return include($SERVERROOT.'/'.$file);
}
elseif(is_file($SERVERROOT.'/lib/'.$file)){
return include($SERVERROOT.'/lib/'.$file);
}
elseif(is_file($SERVERROOT.'/3dparty/'.$file)){
return include($SERVERROOT.'/3dparty/'.$file);
}
}
function oc_include_once($file){
global $SERVERROOT;
global $DOCUMENTROOT;
global $WEBROOT;
global $CONFIG_DBNAME;
global $CONFIG_DBHOST;
global $CONFIG_DBUSER;
global $CONFIG_DBPASSWORD;
global $CONFIG_DBTYPE;
global $CONFIG_DATADIRECTORY;
global $CONFIG_HTTPFORCESSL;
global $CONFIG_DATEFORMAT;
global $CONFIG_INSTALLED;
if(is_file($file)){
return include_once($file);
}
elseif(is_file($SERVERROOT.'/'.$file)){
return include_once($SERVERROOT.'/'.$file);
}
elseif(is_file($SERVERROOT.'/lib/'.$file)){
return include_once($SERVERROOT.'/lib/'.$file);
}
elseif(is_file($SERVERROOT.'/3dparty/'.$file)){
return include_once($SERVERROOT.'/3dparty/'.$file);
}
}
function chmodr($path, $filemode) {
// echo "$path<br/>";
if (!is_dir($path))
return chmod($path, $filemode);
$dh = opendir($path);
while (($file = readdir($dh)) !== false) {
if($file != '.' && $file != '..') {
$fullpath = $path.'/'.$file;
if(is_link($fullpath))
return FALSE;
elseif(!is_dir($fullpath) && !chmod($fullpath, $filemode))
return FALSE;
elseif(!chmodr($fullpath, $filemode))
return FALSE;
}
}
closedir($dh);
if(chmod($path, $filemode))
return TRUE;
else
return FALSE;
}
?>