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egroupware_official/login.php

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<?php
/**
* EGroupware - Login
*
* @link http://www.egroupware.org
* @author Dan Kuykendall <seek3r@phpgroupware.org>
* @author Joseph Engo <jengo@phpgroupware.org>
* @license http://opensource.org/licenses/lgpl-license.php LGPL - GNU Lesser General Public License
* @package api
* @subpackage authentication
* @version $Id$
*/
use EGroupware\Api;
use EGroupware\Api\Framework;
use EGroupware\Api\Egw;
$submit = False; // set to some initial value
$GLOBALS['egw_info'] = array('flags' => array(
'disable_Template_class' => True,
'login' => True,
'currentapp' => 'login',
));
if(file_exists('./header.inc.php'))
{
include('./header.inc.php');
if(!function_exists('CreateObject'))
{
Header('Location: setup/index.php');
exit;
}
}
else
{
Header('Location: setup/index.php');
exit;
}
/*
* Destroy any existing anonymous session.
* Copied from logout.php. Maybe make it a common function?
*/
if(isset($GLOBALS['sitemgr_info']) && $GLOBALS['egw_info']['user']['userid'] == $GLOBALS['sitemgr_info']['anonymous_user'])
{
if($GLOBALS['egw']->session->verify())
{
Api\Hooks::process('logout');
$GLOBALS['egw']->session->destroy($GLOBALS['sessionid'],$GLOBALS['kp3']);
}
}
function parseForward(&$extra_vars)
{
$forward = isset($_GET['phpgw_forward']) ? urldecode($_GET['phpgw_forward']) : @$_POST['phpgw_forward'];
if (!$forward)
{
$extra_vars = 'cd=yes';
$forward = '/index.php';
}
else
{
list($forward, $extra_vars) = explode('?', $forward, 2);
// only append cd=yes, if there is not already a cd value!
if (strpos($extra_vars, 'cd=') === false)
{
$extra_vars .= ($extra_vars ? '&' : '') . 'cd=yes';
}
}
return $forward;
}
// SSO login: CAS, SAML, ...
if (($GLOBALS['sessionid'] = Api\Auth::login()))
{
$forward = parseForward($extra_vars);
$GLOBALS['egw']->redirect_link($forward, $extra_vars);
}
else
{
// allow template to overide login-template (without modifying header.inc.php) by setting default or forced pref
$prefs = new Api\Preferences();
$prefs->account_id = Api\Preferences::DEFAULT_ID;
$prefs->read_repository();
$class = $prefs->data['common']['template_set'].'_framework';
if (class_exists($class) && @constant($class.'::LOGIN_TEMPLATE_SET'))
{
$GLOBALS['egw_info']['server']['template_set'] =
$GLOBALS['egw_info']['login_template_set'] = $prefs->data['common']['template_set'];
}
if ($GLOBALS['egw_info']['login_template_set'] == 'idots')
{
$GLOBALS['egw_info']['server']['template_set'] =
$GLOBALS['egw_info']['login_template_set'] = 'default';
}
unset($prefs); unset($class);
$GLOBALS['egw']->framework = Framework::factory();
// This is used for system downtime, to prevent new logins.
if($GLOBALS['egw_info']['server']['deny_all_logins'])
{
echo $GLOBALS['egw']->framework->denylogin_screen();
exit;
}
/* Program starts here */
// some apache mod_auth_* modules use REMOTE_USER instead of PHP_AUTH_USER, thanks to Sylvain Beucler
if ($GLOBALS['egw_info']['server']['auth_type'] == 'http' && !isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['REMOTE_USER']))
{
$_SERVER['PHP_AUTH_USER'] = $_SERVER['REMOTE_USER'];
}
$passwd = function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc() ? stripslashes($_POST['passwd']) : $_POST['passwd'];
$passwd_type = $_POST['passwd_type'];
// forced password change
if($GLOBALS['egw']->session->cd_reason == Api\Session::CD_FORCE_PASSWORD_CHANGE)
{
// no automatic login
}
// authentication via Apache
elseif ($GLOBALS['egw_info']['server']['auth_type'] == 'http' && isset($_SERVER['PHP_AUTH_USER']))
{
$submit = True;
$login = $_SERVER['PHP_AUTH_USER'];
$passwd = $_SERVER['PHP_AUTH_PW'];
$passwd_type = 'text';
}
# Apache + mod_ssl style SSL certificate authentication
# Certificate (chain) verification occurs inside mod_ssl
elseif($GLOBALS['egw_info']['server']['auth_type'] == 'sqlssl' && isset($_SERVER['SSL_CLIENT_S_DN']) && !isset($_GET['cd']))
{
// an X.509 subject looks like:
// CN=john.doe/OU=Department/O=Company/C=xx/Email=john@comapy.tld/L=City/
// the username is deliberately lowercase, to ease LDAP integration
$sslattribs = explode('/',$_SERVER['SSL_CLIENT_S_DN']);
# skip the part in front of the first '/' (nothing)
while(($sslattrib = next($sslattribs)))
{
list($key,$val) = explode('=',$sslattrib);
$sslattributes[$key] = $val;
}
if(isset($sslattributes['Email']))
{
$submit = True;
# login will be set here if the user logged out and uses a different username with
# the same SSL-certificate.
if(!isset($_POST['login'])&&isset($sslattributes['Email']))
{
$login = $sslattributes['Email'];
# not checked against the database, but delivered to authentication module
$passwd = $_SERVER['SSL_CLIENT_S_DN'];
}
}
unset($key);
unset($val);
unset($sslattributes);
}
else
{
// check if we have a sufficient access-token as cookie and no forced password change
if ($GLOBALS['egw']->session->cd_reason != Api\Session::CD_FORCE_PASSWORD_CHANGE &&
$GLOBALS['egw']->session->skipPasswordAuth($_COOKIE[Api\Session::REMEMBER_ME_COOKIE], $account_id))
{
$_SERVER['PHP_AUTH_USER'] = $login = Api\Accounts::id2name($account_id);
$submit = true;
}
if(!$passwd && ($GLOBALS['egw_info']['server']['auto_anon_login']) && !$_GET['cd'])
{
$_SERVER['PHP_AUTH_USER'] = $login = 'anonymous';
$_SERVER['PHP_AUTH_PW'] = $passwd = 'anonymous';
$passwd_type = 'text';
$submit = True;
}
}
// use HTTP status code 401 for a failed login, so tools like fail2ban can recognice that for login page too
if ($_GET['cd'] == Api\Session::CD_BAD_LOGIN_OR_PASSWORD)
{
http_response_code(401);
}
if (isset($passwd_type) || $submit)
{
if($_SERVER['REQUEST_METHOD'] != 'POST' &&
!isset($_SERVER['PHP_AUTH_USER']) && !isset($_SERVER['SSL_CLIENT_S_DN']))
{
Egw::redirect_link('/login.php','cd=5');
}
// don't get login data again when $submit is true
if($submit == false)
{
$login = $_POST['login'];
}
//conference - for strings like vinicius@thyamad.com@default , allows
//that user have a login that is his e-mail. (viniciuscb)
// remove blanks
$login_parts = array_map('trim',explode('@',$login));
$login = implode('@',$login_parts);
$got_login = false;
if (count($login_parts) > 1)
{
//Last part of login string, when separated by @, is a domain name
if (array_key_exists(array_pop($login_parts),$GLOBALS['egw_domain']))
{
$got_login = true;
}
}
if (!$got_login)
{
if(isset($_POST['logindomain']))
{
$login .= '@' . $_POST['logindomain'];
}
elseif(!isset($GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]))
{
$login .= '@'.$GLOBALS['egw_info']['server']['default_domain'];
}
}
$GLOBALS['sessionid'] = $GLOBALS['egw']->session->create($login, $passwd,
$passwd_type, false, true, true, $_POST['2fa_code'] ?? null, $_POST['remember_me'] ?? null); // true = let session fail on forced password change
if (!$GLOBALS['sessionid'] && $GLOBALS['egw']->session->cd_reason == Api\Session::CD_FORCE_PASSWORD_CHANGE)
{
if (isset($_POST['new_passwd']))
{
if (($errors = preferences_password::do_change($passwd, $_POST['new_passwd'], $_POST['new_passwd2'])))
{
$force_password_change = implode("\n", $errors);
}
else
{
$GLOBALS['sessionid'] = $GLOBALS['egw']->session->create($login,$_POST['new_passwd'],$passwd_type);
}
}
else
{
$force_password_change = $GLOBALS['egw']->session->reason;
}
}
if (isset($force_password_change))
{
// will show new login-screen incl. new password field below
}
elseif (!isset($GLOBALS['sessionid']) || ! $GLOBALS['sessionid'])
{
Egw::redirect_link('/login.php?cd=' . $GLOBALS['egw']->session->cd_reason);
}
else
{
if ($_POST['lang'] && preg_match('/^[a-z]{2}(-[a-z]{2})?$/',$_POST['lang']) &&
$_POST['lang'] != $GLOBALS['egw_info']['user']['preferences']['common']['lang'])
{
$GLOBALS['egw']->preferences->add('common','lang',$_POST['lang'],'session');
}
// check if new translations are available
Api\Translation::check_invalidate_cache();
$forward = parseForward($extra_vars);
if(strpos($_SERVER['HTTP_REFERER'], $_SERVER['REQUEST_URI']) === false) {
// login requuest does not come from login.php
// redirect to referer on logout
Api\Cache::setSession('login', 'referer', $_SERVER['HTTP_REFERER']);
}
$strength = ($GLOBALS['egw_info']['server']['force_pwd_strength']?$GLOBALS['egw_info']['server']['force_pwd_strength']:false);
if ($strength && $strength>5) $strength =5;
if ($strength && $strength<0) $strength = false;
// Check for save passwd
if($strength && $GLOBALS['egw_info']['server']['check_save_passwd'] && !$GLOBALS['egw']->acl->check('nopasswordchange', 1, 'preferences') &&
($unsave_msg = $GLOBALS['egw']->auth->crackcheck($passwd, $strength)))
{
error_log('login::'.__LINE__.' User '. $login. ' authenticated with an unsave password'.' '.$unsave_msg);
$message = lang('eGroupWare checked your password for safetyness. You have to change your password for the following reason:')."\n";
Egw::redirect_link('/index.php', array(
'menuaction' => 'preferences.preferences_password.change',
'message' => $message . $unsave_msg,
'cd' => 'yes',
));
}
else
{
// committing the session, before redirecting might fix race-condition in session creation
$GLOBALS['egw']->session->commit_session();
Egw::redirect_link($forward,$extra_vars);
}
}
}
// show login screen
if(isset($_COOKIE['last_loginid']))
{
$prefs = new Api\Preferences($GLOBALS['egw']->accounts->name2id($_COOKIE['last_loginid']));
if($prefs->account_id)
{
$GLOBALS['egw_info']['user']['preferences'] = $prefs->read_repository();
}
}
if ($_GET['lang'] && preg_match('/^[a-z]{2}(-[a-z]{2})?$/',$_GET['lang']))
{
$GLOBALS['egw_info']['user']['preferences']['common']['lang'] = $_GET['lang'];
}
elseif(!isset($_COOKIE['last_loginid']) || !$prefs->account_id)
{
// If the lastloginid cookies isn't set, we will default to the first language,
// the users browser accepts.
list($lang) = explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
if(strlen($lang) > 2)
{
$lang = substr($lang,0,2);
}
$GLOBALS['egw_info']['user']['preferences']['common']['lang'] = $lang;
}
if ($_COOKIE['eGW_cookie_test'] !== 'enabled')
{
Api\Session::egw_setcookie('eGW_cookie_test','enabled',0);
}
#print 'LANG:' . $GLOBALS['egw_info']['user']['preferences']['common']['lang'] . '<br>';
Api\Translation::init(); // this will set the language according to the (new) set prefs
Api\Translation::add_app('login');
Api\Translation::add_app('loginscreen');
$GLOBALS['loginscreenmessage'] = Api\Translation::translate('loginscreen_message',false,'');
if($GLOBALS['loginscreenmessage'] == 'loginscreen_message' || empty($GLOBALS['loginscreenmessage']))
{
Api\Translation::add_app('loginscreen','en'); // trying the en one
$GLOBALS['loginscreenmessage'] = Api\Translation::translate('loginscreen_message',false,'');
}
if($GLOBALS['loginscreenmessage'] == 'loginscreen_message' || empty($GLOBALS['loginscreenmessage']))
{
// remove the global var since the lang loginscreen message and its fallback (en) is empty or not set
unset($GLOBALS['loginscreenmessage']);
}
foreach($_GET as $name => $value)
{
if(strpos($name,'phpgw_') !== false)
{
$extra_vars .= '&' . $name . '=' . urlencode($value);
}
}
$GLOBALS['egw']->framework->login_screen($extra_vars, $force_password_change);
}
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