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nextcloud/lib/base.php

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<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @copyright 2012 Frank Karlitschek frank@owncloud.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/>.
*
*/
require_once 'public/constants.php';
/**
* 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 {
/**
* Associative array for autoloading. classname => filename
*/
public static $CLASSPATH = array();
/**
* 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)
*/
private static $SUBURI = '';
/**
* the owncloud root path for http requests (e.g. owncloud/)
*/
public static $WEBROOT = '';
/**
* 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 array of the apps folder on the server (e.g. /srv/http/owncloud) 'path' and
* web path in 'url'
*/
public static $APPSROOTS = array();
public static $configDir;
/**
* requested app
*/
public static $REQUESTEDAPP = '';
/**
* check if owncloud runs in cli mode
*/
public static $CLI = false;
/**
* @deprecated use \OC::$session->getSession() instead
* @var \OC\Session\Session
*/
public static $session = null;
/**
* @var \OC\Autoloader $loader
*/
public static $loader = null;
/**
* @var \OC\Server
*/
public static $server = null;
public static function initPaths() {
// calculate the root directories
OC::$SERVERROOT = str_replace("\\", '/', substr(__DIR__, 0, -4));
// ensure we can find OC_Config
set_include_path(
OC::$SERVERROOT . '/lib' . PATH_SEPARATOR .
get_include_path()
);
if(defined('PHPUNIT_CONFIG_DIR')) {
self::$configDir = OC::$SERVERROOT . '/' . PHPUNIT_CONFIG_DIR . '/';
} elseif(defined('PHPUNIT_RUN') and PHPUNIT_RUN and is_dir(OC::$SERVERROOT . '/tests/config/')) {
self::$configDir = OC::$SERVERROOT . '/tests/config/';
} else {
self::$configDir = OC::$SERVERROOT . '/config/';
}
OC_Config::$object = new \OC\Config(self::$configDir);
OC::$SUBURI = str_replace("\\", "/", substr(realpath($_SERVER["SCRIPT_FILENAME"]), strlen(OC::$SERVERROOT)));
$scriptName = OC_Request::scriptName();
if (substr($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::$SUBURI . 'index.php';
}
}
if (substr($scriptName, 0 - strlen(OC::$SUBURI)) === OC::$SUBURI) {
OC::$WEBROOT = substr($scriptName, 0, 0 - strlen(OC::$SUBURI));
if (OC::$WEBROOT != '' && OC::$WEBROOT[0] !== '/') {
OC::$WEBROOT = '/' . OC::$WEBROOT;
}
} else {
// The scriptName is not ending with OC::$SUBURI
// This most likely means that we are calling from CLI.
// However some cron jobs still need to generate
// a web URL, so we use overwritewebroot as a fallback.
OC::$WEBROOT = OC_Config::getValue('overwritewebroot', '');
}
// search the 3rdparty folder
OC::$THIRDPARTYROOT = OC_Config::getValue('3rdpartyroot', null);
OC::$THIRDPARTYWEBROOT = OC_Config::getValue('3rdpartyurl', null);
if (empty(OC::$THIRDPARTYROOT) && empty(OC::$THIRDPARTYWEBROOT)) {
if (file_exists(OC::$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::$SERVERROOT), '/');
}
}
if (empty(OC::$THIRDPARTYROOT) || !file_exists(OC::$THIRDPARTYROOT)) {
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.');
return;
}
// search the apps folder
$config_paths = OC_Config::getValue('apps_paths', array());
if (!empty($config_paths)) {
foreach ($config_paths as $paths) {
if (isset($paths['url']) && isset($paths['path'])) {
$paths['url'] = rtrim($paths['url'], '/');
$paths['path'] = rtrim($paths['path'], '/');
OC::$APPSROOTS[] = $paths;
}
}
} elseif (file_exists(OC::$SERVERROOT . '/apps')) {
OC::$APPSROOTS[] = array('path' => OC::$SERVERROOT . '/apps', 'url' => '/apps', 'writable' => true);
} elseif (file_exists(OC::$SERVERROOT . '/../apps')) {
OC::$APPSROOTS[] = array(
'path' => rtrim(dirname(OC::$SERVERROOT), '/') . '/apps',
'url' => '/apps',
'writable' => true
);
}
if (empty(OC::$APPSROOTS)) {
throw new Exception('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.');
}
$paths = array();
foreach (OC::$APPSROOTS as $path) {
$paths[] = $path['path'];
}
// set the right include path
set_include_path(
OC::$SERVERROOT . '/lib/private' . PATH_SEPARATOR .
OC::$SERVERROOT . '/config' . PATH_SEPARATOR .
OC::$THIRDPARTYROOT . '/3rdparty' . PATH_SEPARATOR .
implode(PATH_SEPARATOR, $paths) . PATH_SEPARATOR .
get_include_path() . PATH_SEPARATOR .
OC::$SERVERROOT
);
}
public static function checkConfig() {
$l = OC_L10N::get('lib');
if (file_exists(self::$configDir . "/config.php")
and !is_writable(self::$configDir . "/config.php")
) {
if (self::$CLI) {
echo $l->t('Cannot write into "config" directory!')."\n";
echo $l->t('This can usually be fixed by giving the webserver write access to the config directory')."\n";
echo "\n";
echo $l->t('See %s', array(\OC_Helper::linkToDocs('admin-dir_permissions')))."\n";
exit;
} else {
OC_Template::printErrorPage(
$l->t('Cannot write into "config" directory!'),
$l->t('This can usually be fixed by '
. '%sgiving the webserver write access to the config directory%s.',
array('<a href="'.\OC_Helper::linkToDocs('admin-dir_permissions').'" target="_blank">', '</a>'))
);
}
}
}
public static function checkInstalled() {
// Redirect to installer if not installed
if (!OC_Config::getValue('installed', false) && OC::$SUBURI != '/index.php') {
if (OC::$CLI) {
throw new Exception('Not installed');
} else {
$url = 'http://' . $_SERVER['SERVER_NAME'] . OC::$WEBROOT . '/index.php';
header('Location: ' . $url);
}
exit();
}
}
public static function checkSSL() {
// redirect to https site if configured
if (OC_Config::getValue("forcessl", false)) {
header('Strict-Transport-Security: max-age=31536000');
ini_set("session.cookie_secure", "on");
if (OC_Request::serverProtocol() <> 'https' and !OC::$CLI) {
$url = "https://" . OC_Request::serverHost() . OC_Request::requestUri();
header("Location: $url");
exit();
}
} else {
// Invalidate HSTS headers
if (OC_Request::serverProtocol() === 'https') {
header('Strict-Transport-Security: max-age=0');
}
}
}
public static function checkMaintenanceMode() {
// Allow ajax update script to execute without being stopped
if (OC_Config::getValue('maintenance', false) && OC::$SUBURI != '/core/ajax/update.php') {
// send http status 503
header('HTTP/1.1 503 Service Temporarily Unavailable');
header('Status: 503 Service Temporarily Unavailable');
header('Retry-After: 120');
// render error page
$tmpl = new OC_Template('', 'update.user', 'guest');
$tmpl->printPage();
die();
}
}
public static function checkSingleUserMode() {
$user = OC_User::getUserSession()->getUser();
$group = OC_Group::getManager()->get('admin');
if ($user && OC_Config::getValue('singleuser', false) && !$group->inGroup($user)) {
// send http status 503
header('HTTP/1.1 503 Service Temporarily Unavailable');
header('Status: 503 Service Temporarily Unavailable');
header('Retry-After: 120');
// render error page
$tmpl = new OC_Template('', 'singleuser.user', 'guest');
$tmpl->printPage();
die();
}
}
/**
* check if the instance needs to preform an upgrade
*
* @return bool
* @deprecated use \OCP\Util::needUpgrade() instead
*/
public static function needUpgrade() {
return \OCP\Util::needUpgrade();
}
/**
* Checks if the version requires an update and shows
* @param bool $showTemplate Whether an update screen should get shown
* @return bool|void
*/
public static function checkUpgrade($showTemplate = true) {
if (\OCP\Util::needUpgrade()) {
if ($showTemplate && !OC_Config::getValue('maintenance', false)) {
$version = OC_Util::getVersion();
$oldTheme = OC_Config::getValue('theme');
OC_Config::setValue('theme', '');
OC_Util::addScript('config'); // needed for web root
OC_Util::addScript('update');
$tmpl = new OC_Template('', 'update.admin', 'guest');
$tmpl->assign('version', OC_Util::getVersionString());
// get third party apps
$apps = OC_App::getEnabledApps();
$incompatibleApps = array();
foreach ($apps as $appId) {
$info = OC_App::getAppInfo($appId);
if(!OC_App::isAppCompatible($version, $info)) {
$incompatibleApps[] = $info;
}
}
$tmpl->assign('appList', $incompatibleApps);
$tmpl->assign('productName', 'ownCloud'); // for now
$tmpl->assign('oldTheme', $oldTheme);
$tmpl->printPage();
exit();
} else {
return true;
}
}
return false;
}
public static function initTemplateEngine() {
// Add the stuff we need always
// TODO: read from core/js/core.json
OC_Util::addScript("jquery-1.10.0.min");
OC_Util::addScript("jquery-migrate-1.2.1.min");
OC_Util::addScript("jquery-ui-1.10.0.custom");
OC_Util::addScript("jquery-showpassword");
OC_Util::addScript("placeholders");
OC_Util::addScript("jquery-tipsy");
OC_Util::addScript("compatibility");
OC_Util::addScript("underscore");
OC_Util::addScript("jquery.ocdialog");
OC_Util::addScript("oc-dialogs");
OC_Util::addScript("js");
OC_Util::addScript("octemplate");
OC_Util::addScript("eventsource");
OC_Util::addScript("config");
//OC_Util::addScript( "multiselect" );
OC_Util::addScript('search', 'result');
OC_Util::addScript("oc-requesttoken");
OC_Util::addScript("apps");
OC_Util::addScript("snap");
OC_Util::addScript("moment");
// avatars
if (\OC_Config::getValue('enable_avatars', true) === true) {
\OC_Util::addScript('placeholder');
\OC_Util::addScript('3rdparty', 'md5/md5.min');
\OC_Util::addScript('jquery.avatar');
\OC_Util::addScript('avatar');
}
OC_Util::addStyle("styles");
OC_Util::addStyle("header");
OC_Util::addStyle("mobile");
OC_Util::addStyle("icons");
OC_Util::addStyle("fonts");
OC_Util::addStyle("apps");
OC_Util::addStyle("fixes");
OC_Util::addStyle("multiselect");
OC_Util::addStyle("jquery-ui-1.10.0.custom");
OC_Util::addStyle("jquery-tipsy");
OC_Util::addStyle("jquery.ocdialog");
}
public static function initSession() {
// prevents javascript from accessing php session cookies
ini_set('session.cookie_httponly', '1;');
// set the cookie path to the ownCloud directory
$cookie_path = OC::$WEBROOT ? : '/';
ini_set('session.cookie_path', $cookie_path);
// Let the session name be changed in the initSession Hook
$sessionName = OC_Util::getInstanceId();
try {
// Allow session apps to create a custom session object
$useCustomSession = false;
$session = self::$server->getSession();
OC_Hook::emit('OC', 'initSession', array('session' => &$session, 'sessionName' => &$sessionName, 'useCustomSession' => &$useCustomSession));
if($useCustomSession) {
// use the session reference as the new Session
self::$server->setSession($session);
} else {
// set the session name to the instance id - which is unique
self::$server->setSession(new \OC\Session\Internal($sessionName));
}
// if session cant be started break with http 500 error
} catch (Exception $e) {
//show the user a detailed error page
OC_Response::setStatus(OC_Response::STATUS_INTERNAL_SERVER_ERROR);
OC_Template::printExceptionErrorPage($e);
}
$sessionLifeTime = self::getSessionLifeTime();
// regenerate session id periodically to avoid session fixation
/**
* @var \OCP\ISession $session
*/
$session = self::$server->getSession();
if (!$session->exists('SID_CREATED')) {
$session->set('SID_CREATED', time());
} else if (time() - $session->get('SID_CREATED') > $sessionLifeTime / 2) {
session_regenerate_id(true);
$session->set('SID_CREATED', time());
}
// session timeout
if ($session->exists('LAST_ACTIVITY') && (time() - $session->get('LAST_ACTIVITY') > $sessionLifeTime)) {
if (isset($_COOKIE[session_name()])) {
setcookie(session_name(), '', time() - 42000, $cookie_path);
}
session_unset();
session_destroy();
session_start();
}
$session->set('LAST_ACTIVITY', time());
}
/**
* @return string
*/
private static function getSessionLifeTime() {
return OC_Config::getValue('session_lifetime', 60 * 60 * 24);
}
public static function loadAppClassPaths() {
foreach (OC_APP::getEnabledApps() as $app) {
$file = OC_App::getAppPath($app) . '/appinfo/classpath.php';
if (file_exists($file)) {
require_once $file;
}
}
}
public static function init() {
// register autoloader
require_once __DIR__ . '/autoloader.php';
self::$loader = new \OC\Autoloader();
self::$loader->registerPrefix('Doctrine\\Common', 'doctrine/common/lib');
self::$loader->registerPrefix('Doctrine\\DBAL', 'doctrine/dbal/lib');
self::$loader->registerPrefix('Symfony\\Component\\Routing', 'symfony/routing');
self::$loader->registerPrefix('Symfony\\Component\\Console', 'symfony/console');
self::$loader->registerPrefix('Patchwork', '3rdparty');
self::$loader->registerPrefix('Pimple', '3rdparty/Pimple');
spl_autoload_register(array(self::$loader, 'load'));
// set some stuff
//ob_start();
error_reporting(E_ALL | E_STRICT);
if (defined('DEBUG') && DEBUG) {
ini_set('display_errors', 1);
}
self::$CLI = (php_sapi_name() == 'cli');
date_default_timezone_set('UTC');
ini_set('arg_separator.output', '&amp;');
// try to switch magic quotes off.
if (get_magic_quotes_gpc() == 1) {
ini_set('magic_quotes_runtime', 0);
}
//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');
self::handleAuthHeaders();
self::initPaths();
self::registerAutoloaderCache();
OC_Util::isSetLocaleWorking();
// setup 3rdparty autoloader
$vendorAutoLoad = OC::$THIRDPARTYROOT . '/3rdparty/autoload.php';
if (file_exists($vendorAutoLoad)) {
require_once $vendorAutoLoad;
}
if (!defined('PHPUNIT_RUN')) {
OC\Log\ErrorHandler::setLogger(OC_Log::$object);
if (defined('DEBUG') and DEBUG) {
OC\Log\ErrorHandler::register(true);
set_exception_handler(array('OC_Template', 'printExceptionErrorPage'));
} else {
OC\Log\ErrorHandler::register();
}
}
// register the stream wrappers
stream_wrapper_register('fakedir', 'OC\Files\Stream\Dir');
stream_wrapper_register('static', 'OC\Files\Stream\StaticStream');
stream_wrapper_register('close', 'OC\Files\Stream\Close');
stream_wrapper_register('quota', 'OC\Files\Stream\Quota');
stream_wrapper_register('oc', 'OC\Files\Stream\OC');
// setup the basic server
self::$server = new \OC\Server();
self::initTemplateEngine();
OC_App::loadApps(array('session'));
if (self::$CLI) {
self::$session = new \OC\Session\Memory('');
} else {
self::initSession();
}
self::checkConfig();
self::checkInstalled();
self::checkSSL();
OC_Response::addSecurityHeaders();
$errors = OC_Util::checkServer();
if (count($errors) > 0) {
if (self::$CLI) {
foreach ($errors as $error) {
echo $error['error'] . "\n";
echo $error['hint'] . "\n\n";
}
} else {
OC_Response::setStatus(OC_Response::STATUS_SERVICE_UNAVAILABLE);
OC_Template::printGuestPage('', 'error', array('errors' => $errors));
}
exit;
}
//try to set the session lifetime
$sessionLifeTime = self::getSessionLifeTime();
@ini_set('gc_maxlifetime', (string)$sessionLifeTime);
// User and Groups
if (!OC_Config::getValue("installed", false)) {
self::$server->getSession()->set('user_id', '');
}
OC_User::useBackend(new OC_User_Database());
OC_Group::useBackend(new OC_Group_Database());
//setup extra user backends
OC_User::setupBackends();
self::registerCacheHooks();
self::registerFilesystemHooks();
self::registerPreviewHooks();
self::registerShareHooks();
self::registerLogRotate();
self::registerLocalAddressBook();
//make sure temporary files are cleaned up
register_shutdown_function(array('OC_Helper', 'cleanTmp'));
if (OC_Config::getValue('installed', false) && !self::checkUpgrade(false)) {
if (OC_Appconfig::getValue('core', 'backgroundjobs_mode', 'ajax') == 'ajax') {
OC_Util::addScript('backgroundjobs');
}
}
// Check whether the sample configuration has been copied
if(OC_Config::getValue('copied_sample_config', false)) {
$l = \OC_L10N::get('lib');
header('HTTP/1.1 503 Service Temporarily Unavailable');
header('Status: 503 Service Temporarily Unavailable');
OC_Template::printErrorPage(
$l->t('Sample configuration detected'),
$l->t('It has been detected that the sample configuration has been copied. This can break your installation and is unsupported. Please read the documentation before performing changes on config.php')
);
return;
}
}
private static function registerLocalAddressBook() {
self::$server->getContactsManager()->register(function() {
$userManager = \OC::$server->getUserManager();
\OC::$server->getContactsManager()->registerAddressBook(
new \OC\Contacts\LocalAddressBook($userManager));
});
}
/**
* register hooks for the cache
*/
public static function registerCacheHooks() {
if (OC_Config::getValue('installed', false) && !\OCP\Util::needUpgrade()) { //don't try to do this before we are properly setup
\OCP\BackgroundJob::registerJob('OC\Cache\FileGlobalGC');
// NOTE: This will be replaced to use OCP
$userSession = \OC_User::getUserSession();
$userSession->listen('postLogin', '\OC\Cache\File', 'loginListener');
}
}
/**
* register hooks for the cache
*/
public static function registerLogRotate() {
if (OC_Config::getValue('installed', false) && OC_Config::getValue('log_rotate_size', false) && !\OCP\Util::needUpgrade()) {
//don't try to do this before we are properly setup
//use custom logfile path if defined, otherwise use default of owncloud.log in data directory
\OCP\BackgroundJob::registerJob('OC\Log\Rotate', OC_Config::getValue('logfile', OC_Config::getValue("datadirectory", OC::$SERVERROOT . '/data') . '/owncloud.log'));
}
}
/**
* register hooks for the filesystem
*/
public static function registerFilesystemHooks() {
// Check for blacklisted files
OC_Hook::connect('OC_Filesystem', 'write', 'OC\Files\Filesystem', 'isBlacklisted');
OC_Hook::connect('OC_Filesystem', 'rename', 'OC\Files\Filesystem', 'isBlacklisted');
}
/**
* register hooks for previews
*/
public static function registerPreviewHooks() {
OC_Hook::connect('OC_Filesystem', 'post_write', 'OC\Preview', 'post_write');
OC_Hook::connect('OC_Filesystem', 'delete', 'OC\Preview', 'prepare_delete_files');
OC_Hook::connect('\OCP\Versions', 'preDelete', 'OC\Preview', 'prepare_delete');
OC_Hook::connect('\OCP\Trashbin', 'preDelete', 'OC\Preview', 'prepare_delete');
OC_Hook::connect('OC_Filesystem', 'post_delete', 'OC\Preview', 'post_delete_files');
OC_Hook::connect('\OCP\Versions', 'delete', 'OC\Preview', 'post_delete');
OC_Hook::connect('\OCP\Trashbin', 'delete', 'OC\Preview', 'post_delete');
}
/**
* register hooks for sharing
*/
public static function registerShareHooks() {
if (\OC_Config::getValue('installed')) {
OC_Hook::connect('OC_User', 'post_deleteUser', 'OC\Share\Hooks', 'post_deleteUser');
OC_Hook::connect('OC_User', 'post_addToGroup', 'OC\Share\Hooks', 'post_addToGroup');
OC_Hook::connect('OC_User', 'post_removeFromGroup', 'OC\Share\Hooks', 'post_removeFromGroup');
OC_Hook::connect('OC_User', 'post_deleteGroup', 'OC\Share\Hooks', 'post_deleteGroup');
}
}
protected static function registerAutoloaderCache() {
// The class loader takes an optional low-latency cache, which MUST be
// namespaced. The instanceid is used for namespacing, but might be
// unavailable at this point. Futhermore, it might not be possible to
// generate an instanceid via \OC_Util::getInstanceId() because the
// config file may not be writable. As such, we only register a class
// loader cache if instanceid is available without trying to create one.
$instanceId = OC_Config::getValue('instanceid', null);
if ($instanceId) {
try {
$memcacheFactory = new \OC\Memcache\Factory($instanceId);
self::$loader->setMemoryCache($memcacheFactory->createLowLatency('Autoloader'));
} catch (\Exception $ex) {
}
}
}
/**
* Handle the request
*/
public static function handleRequest() {
$l = \OC_L10N::get('lib');
// load all the classpaths from the enabled apps so they are available
// in the routing files of each app
OC::loadAppClassPaths();
// Check if ownCloud is installed or in maintenance (update) mode
if (!OC_Config::getValue('installed', false)) {
$controller = new OC\Core\Setup\Controller();
$controller->run($_POST);
exit();
}
$host = OC_Request::insecureServerHost();
// if the host passed in headers isn't trusted
if (!OC::$CLI
// overwritehost is always trusted
&& OC_Request::getOverwriteHost() === null
&& !OC_Request::isTrustedDomain($host)
) {
header('HTTP/1.1 400 Bad Request');
header('Status: 400 Bad Request');
$tmpl = new OCP\Template('core', 'untrustedDomain', 'guest');
$tmpl->assign('domain', $_SERVER['SERVER_NAME']);
$tmpl->printPage();
return;
}
$request = OC_Request::getPathInfo();
if (substr($request, -3) !== '.js') { // we need these files during the upgrade
self::checkMaintenanceMode();
self::checkUpgrade();
}
if (!OC_User::isLoggedIn()) {
// Test it the user is already authenticated using Apaches AuthType Basic... very usable in combination with LDAP
if (!OC_Config::getValue('maintenance', false) && !self::checkUpgrade(false)) {
OC_App::loadApps(array('authentication'));
}
OC::tryBasicAuthLogin();
}
if (!self::$CLI and (!isset($_GET["logout"]) or ($_GET["logout"] !== 'true'))) {
try {
if (!OC_Config::getValue('maintenance', false) && !\OCP\Util::needUpgrade()) {
OC_App::loadApps(array('authentication'));
OC_App::loadApps(array('filesystem', 'logging'));
OC_App::loadApps();
}
self::checkSingleUserMode();
OC::$server->getRouter()->match(OC_Request::getRawPathInfo());
return;
} catch (Symfony\Component\Routing\Exception\ResourceNotFoundException $e) {
//header('HTTP/1.0 404 Not Found');
} catch (Symfony\Component\Routing\Exception\MethodNotAllowedException $e) {
OC_Response::setStatus(405);
return;
}
}
// Load minimum set of apps
if (!self::checkUpgrade(false)) {
// For logged-in users: Load everything
if(OC_User::isLoggedIn()) {
OC_App::loadApps();
} else {
// For guests: Load only authentication, filesystem and logging
OC_App::loadApps(array('authentication'));
OC_App::loadApps(array('filesystem', 'logging'));
}
}
// Handle redirect URL for logged in users
if (isset($_REQUEST['redirect_url']) && OC_User::isLoggedIn()) {
$location = OC_Helper::makeURLAbsolute(urldecode($_REQUEST['redirect_url']));
// Deny the redirect if the URL contains a @
// This prevents unvalidated redirects like ?redirect_url=:user@domain.com
if (strpos($location, '@') === false) {
header('Location: ' . $location);
return;
}
}
// Handle WebDAV
if ($_SERVER['REQUEST_METHOD'] == 'PROPFIND') {
// not allowed any more to prevent people
// mounting this root directly.
// Users need to mount remote.php/webdav instead.
header('HTTP/1.1 405 Method Not Allowed');
header('Status: 405 Method Not Allowed');
return;
}
// Redirect to index if the logout link is accessed without valid session
// this is needed to prevent "Token expired" messages while login if a session is expired
// @see https://github.com/owncloud/core/pull/8443#issuecomment-42425583
if(isset($_GET['logout']) && !OC_User::isLoggedIn()) {
header("Location: " . OC::$WEBROOT.(empty(OC::$WEBROOT) ? '/' : ''));
return;
}
// Someone is logged in
if (OC_User::isLoggedIn()) {
OC_App::loadApps();
OC_User::setupBackends();
if (isset($_GET["logout"]) and ($_GET["logout"])) {
OC_JSON::callCheck();
if (isset($_COOKIE['oc_token'])) {
OC_Preferences::deleteKey(OC_User::getUser(), 'login_token', $_COOKIE['oc_token']);
}
if (isset($_SERVER['PHP_AUTH_USER'])) {
if (isset($_COOKIE['oc_ignore_php_auth_user'])) {
// Ignore HTTP Authentication for 5 more mintues.
setcookie('oc_ignore_php_auth_user', $_SERVER['PHP_AUTH_USER'], time() + 300, OC::$WEBROOT.(empty(OC::$WEBROOT) ? '/' : ''));
} elseif ($_SERVER['PHP_AUTH_USER'] === self::$server->getSession()->get('loginname')) {
// Ignore HTTP Authentication to allow a different user to log in.
setcookie('oc_ignore_php_auth_user', $_SERVER['PHP_AUTH_USER'], 0, OC::$WEBROOT.(empty(OC::$WEBROOT) ? '/' : ''));
}
}
OC_User::logout();
// redirect to webroot and add slash if webroot is empty
header("Location: " . OC::$WEBROOT.(empty(OC::$WEBROOT) ? '/' : ''));
} else {
// Redirect to default application
OC_Util::redirectToDefaultPage();
}
} else {
// Not handled and not logged in
self::handleLogin();
}
}
protected static function handleAuthHeaders() {
//copy http auth headers for apache+php-fcgid work around
if (isset($_SERVER['HTTP_XAUTHORIZATION']) && !isset($_SERVER['HTTP_AUTHORIZATION'])) {
$_SERVER['HTTP_AUTHORIZATION'] = $_SERVER['HTTP_XAUTHORIZATION'];
}
// Extract PHP_AUTH_USER/PHP_AUTH_PW from other headers if necessary.
$vars = array(
'HTTP_AUTHORIZATION', // apache+php-cgi work around
'REDIRECT_HTTP_AUTHORIZATION', // apache+php-cgi alternative
);
foreach ($vars as $var) {
if (isset($_SERVER[$var]) && preg_match('/Basic\s+(.*)$/i', $_SERVER[$var], $matches)) {
list($name, $password) = explode(':', base64_decode($matches[1]), 2);
$_SERVER['PHP_AUTH_USER'] = $name;
$_SERVER['PHP_AUTH_PW'] = $password;
break;
}
}
}
protected static function handleLogin() {
OC_App::loadApps(array('prelogin'));
$error = array();
// auth possible via apache module?
if (OC::tryApacheAuth()) {
$error[] = 'apacheauthfailed';
} // remember was checked after last login
elseif (OC::tryRememberLogin()) {
$error[] = 'invalidcookie';
} // logon via web form
elseif (OC::tryFormLogin()) {
$error[] = 'invalidpassword';
}
OC_Util::displayLoginPage(array_unique($error));
}
/**
* Remove outdated and therefore invalid tokens for a user
* @param string $user
*/
protected static function cleanupLoginTokens($user) {
$cutoff = time() - OC_Config::getValue('remember_login_cookie_lifetime', 60 * 60 * 24 * 15);
$tokens = OC_Preferences::getKeys($user, 'login_token');
foreach ($tokens as $token) {
$time = OC_Preferences::getValue($user, 'login_token', $token);
if ($time < $cutoff) {
OC_Preferences::deleteKey($user, 'login_token', $token);
}
}
}
/**
* Try to login a user via HTTP authentication
* @return bool|void
*/
protected static function tryApacheAuth() {
$return = OC_User::handleApacheAuth();
// if return is true we are logged in -> redirect to the default page
if ($return === true) {
$_REQUEST['redirect_url'] = \OC_Request::requestUri();
OC_Util::redirectToDefaultPage();
exit;
}
// in case $return is null apache based auth is not enabled
return is_null($return) ? false : true;
}
/**
* Try to login a user using the remember me cookie.
* @return bool Whether the provided cookie was valid
*/
protected static function tryRememberLogin() {
if (!isset($_COOKIE["oc_remember_login"])
|| !isset($_COOKIE["oc_token"])
|| !isset($_COOKIE["oc_username"])
|| !$_COOKIE["oc_remember_login"]
|| !OC_Util::rememberLoginAllowed()
) {
return false;
}
if (defined("DEBUG") && DEBUG) {
OC_Log::write('core', 'Trying to login from cookie', OC_Log::DEBUG);
}
if(OC_User::userExists($_COOKIE['oc_username'])) {
self::cleanupLoginTokens($_COOKIE['oc_username']);
// verify whether the supplied "remember me" token was valid
$granted = OC_User::loginWithCookie(
$_COOKIE['oc_username'], $_COOKIE['oc_token']);
if($granted === true) {
OC_Util::redirectToDefaultPage();
// doesn't return
}
OC_Log::write('core', 'Authentication cookie rejected for user ' .
$_COOKIE['oc_username'], OC_Log::WARN);
// if you reach this point you have changed your password
// or you are an attacker
// we can not delete tokens here because users may reach
// this point multiple times after a password change
}
OC_User::unsetMagicInCookie();
return true;
}
/**
* Tries to login a user using the formbased authentication
* @return bool|void
*/
protected static function tryFormLogin() {
if (!isset($_POST["user"]) || !isset($_POST['password'])) {
return false;
}
OC_JSON::callCheck();
OC_App::loadApps();
//setup extra user backends
OC_User::setupBackends();
if (OC_User::login($_POST["user"], $_POST["password"])) {
// setting up the time zone
if (isset($_POST['timezone-offset'])) {
self::$server->getSession()->set('timezone', $_POST['timezone-offset']);
}
$userid = OC_User::getUser();
self::cleanupLoginTokens($userid);
if (!empty($_POST["remember_login"])) {
if (defined("DEBUG") && DEBUG) {
OC_Log::write('core', 'Setting remember login to cookie', OC_Log::DEBUG);
}
$token = OC_Util::generateRandomBytes(32);
OC_Preferences::setValue($userid, 'login_token', $token, time());
OC_User::setMagicInCookie($userid, $token);
} else {
OC_User::unsetMagicInCookie();
}
OC_Util::redirectToDefaultPage();
exit();
}
return true;
}
/**
* Try to login a user using HTTP authentication.
* @return bool
*/
protected static function tryBasicAuthLogin() {
if (!isset($_SERVER["PHP_AUTH_USER"])
|| !isset($_SERVER["PHP_AUTH_PW"])
|| (isset($_COOKIE['oc_ignore_php_auth_user']) && $_COOKIE['oc_ignore_php_auth_user'] === $_SERVER['PHP_AUTH_USER'])
) {
return false;
}
if (OC_User::login($_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"])) {
//OC_Log::write('core',"Logged in with HTTP Authentication", OC_Log::DEBUG);
OC_User::unsetMagicInCookie();
$_SERVER['HTTP_REQUESTTOKEN'] = OC_Util::callRegister();
}
return true;
}
}
if (!function_exists('get_temp_dir')) {
/**
* Get the temporary dir to store uploaded data
* @return null|string Path to the temporary directory or null
*/
function get_temp_dir() {
if ($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();
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