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index.php
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<?php
/*
+-------------------------------------------------------------------------+
| Roundcube Webmail IMAP Client |
| Version 1.7-git |
| |
| Copyright (C) The Roundcube Dev Team |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License (with exceptions |
| for skins & plugins) as published by the Free Software Foundation, |
| either version 3 of the License, or (at your option) any later version. |
| |
| This file forms part of the Roundcube Webmail Software for which the |
| following exception is added: Plugins and Skins which merely make |
| function calls to the Roundcube Webmail Software, and for that purpose |
| include it by reference shall not be considered modifications of |
| the software. |
| |
| If you wish to use this file in another project or create a modified |
| version that will not be part of the Roundcube Webmail Software, you |
| may remove the exception above and use this source code under the |
| original version of the license. |
| |
| This program 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 General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see http://www.gnu.org/licenses/. |
| |
+-------------------------------------------------------------------------+
| Author: Thomas Bruederli <[email protected]> |
| Author: Aleksander Machniak <[email protected]> |
+-------------------------------------------------------------------------+
*/
// include environment
require_once 'program/include/iniset.php';
// init application, start session, init output class, etc.
$RCMAIL = rcmail::get_instance(0, $GLOBALS['env'] ?? null);
// Make the whole PHP output non-cacheable (#1487797)
$RCMAIL->output->nocacheing_headers();
$RCMAIL->output->common_headers(!empty($_SESSION['user_id']));
// turn on output buffering
ob_start();
// check the initial error state
if ($RCMAIL->config->get_error() || $RCMAIL->db->is_error()) {
rcmail_fatal_error();
}
// error steps
if ($RCMAIL->action == 'error' && !empty($_GET['_code'])) {
rcmail::raise_error(['code' => hexdec($_GET['_code'])], false, true);
}
// check if https is required (for login) and redirect if necessary
if (empty($_SESSION['user_id']) && ($force_https = $RCMAIL->config->get('force_https', false))) {
// force_https can be true, <hostname>, <hostname>:<port>, <port>
if (!is_bool($force_https)) {
[$host, $port] = explode(':', $force_https);
if (is_numeric($host) && empty($port)) {
$port = $host;
$host = '';
}
}
if (empty($port)) {
$port = 443;
}
if (!rcube_utils::https_check($port)) {
if (empty($host)) {
$host = preg_replace('/:[0-9]+$/', '', $_SERVER['HTTP_HOST']);
}
if ($port != 443) {
$host .= ':' . $port;
}
header('Location: https://' . $host . $_SERVER['REQUEST_URI']);
exit;
}
}
// trigger startup plugin hook
$startup = $RCMAIL->plugins->exec_hook('startup', ['task' => $RCMAIL->task, 'action' => $RCMAIL->action]);
$RCMAIL->set_task($startup['task']);
$RCMAIL->action = $startup['action'];
$session_error = null;
// try to log in
if ($RCMAIL->task == 'login' && $RCMAIL->action == 'login') {
$request_valid = !empty($_SESSION['temp']) && $RCMAIL->check_request();
$pass_charset = $RCMAIL->config->get('password_charset', 'UTF-8');
// purge the session in case of new login when a session already exists
if ($request_valid) {
$RCMAIL->kill_session();
}
$auth = $RCMAIL->plugins->exec_hook('authenticate', [
'host' => $RCMAIL->autoselect_host(),
'user' => trim(rcube_utils::get_input_string('_user', rcube_utils::INPUT_POST)),
'pass' => rcube_utils::get_input_string('_pass', rcube_utils::INPUT_POST, true, $pass_charset),
'valid' => $request_valid,
'error' => null,
'cookiecheck' => true,
]);
// Login
if ($auth['valid'] && !$auth['abort']
&& $RCMAIL->login($auth['user'], $auth['pass'], $auth['host'], $auth['cookiecheck'])
) {
// create new session ID, don't destroy the current session
// it was destroyed already by $RCMAIL->kill_session() above
$RCMAIL->session->remove('temp');
$RCMAIL->session->regenerate_id(false);
// send auth cookie if necessary
$RCMAIL->session->set_auth_cookie();
// log successful login
$RCMAIL->log_login();
// restore original request parameters
$query = [];
if ($url = rcube_utils::get_input_string('_url', rcube_utils::INPUT_POST)) {
parse_str($url, $query);
// prevent endless looping on login page
if (!empty($query['_task']) && $query['_task'] == 'login') {
unset($query['_task']);
}
// prevent redirect to compose with specified ID (#1488226)
if (!empty($query['_action']) && $query['_action'] == 'compose' && !empty($query['_id'])) {
$query = ['_action' => 'compose'];
}
}
// allow plugins to control the redirect url after login success
$redir = $RCMAIL->plugins->exec_hook('login_after', $query + ['_task' => 'mail']);
unset($redir['abort'], $redir['_err']);
// send redirect
$RCMAIL->output->redirect($redir, 0, true);
} else {
if (!$auth['valid']) {
$error_code = rcmail::ERROR_INVALID_REQUEST;
} else {
$error_code = is_numeric($auth['error']) ? $auth['error'] : $RCMAIL->login_error();
}
$error_labels = [
rcmail::ERROR_STORAGE => 'storageerror',
rcmail::ERROR_COOKIES_DISABLED => 'cookiesdisabled',
rcmail::ERROR_INVALID_REQUEST => 'invalidrequest',
rcmail::ERROR_INVALID_HOST => 'invalidhost',
rcmail::ERROR_RATE_LIMIT => 'accountlocked',
];
if (!empty($auth['error']) && !is_numeric($auth['error'])) {
$error_message = $auth['error'];
} else {
$error_message = !empty($error_labels[$error_code]) ? $error_labels[$error_code] : 'loginfailed';
}
$RCMAIL->output->show_message($error_message, 'warning');
// log failed login
$RCMAIL->log_login($auth['user'], true, $error_code);
$RCMAIL->plugins->exec_hook('login_failed', [
'code' => $error_code,
'host' => $auth['host'],
'user' => $auth['user'],
]);
if (!isset($_SESSION['user_id'])) {
$RCMAIL->kill_session();
}
}
}
// end session
elseif ($RCMAIL->task == 'logout' && isset($_SESSION['user_id'])) {
$RCMAIL->request_security_check(rcube_utils::INPUT_GET | rcube_utils::INPUT_POST);
$userdata = [
'user' => $_SESSION['username'],
'host' => $_SESSION['storage_host'],
'lang' => $RCMAIL->user->language,
];
$RCMAIL->output->show_message('loggedout');
$RCMAIL->logout_actions();
$RCMAIL->kill_session();
$RCMAIL->plugins->exec_hook('logout_after', $userdata);
}
// check session and auth cookie
elseif ($RCMAIL->task != 'login' && $_SESSION['user_id']) {
if (!$RCMAIL->session->check_auth()) {
$RCMAIL->kill_session();
$session_error = 'sessionerror';
}
}
// not logged in -> show login page
if (empty($RCMAIL->user->ID)) {
if (
$session_error
|| (!empty($_REQUEST['_err']) && $_REQUEST['_err'] === 'session')
|| ($session_error = $RCMAIL->session_error())
) {
$RCMAIL->output->show_message($session_error ?: 'sessionerror', 'error', null, true, -1);
}
if ($RCMAIL->output->ajax_call || $RCMAIL->output->get_env('framed')) {
$RCMAIL->output->command('session_error', $RCMAIL->url(['_err' => 'session']));
$RCMAIL->output->send('iframe');
}
// check if installer is still active
if ($RCMAIL->config->get('enable_installer') && is_readable('./installer/index.php')) {
$RCMAIL->output->add_footer(html::div(['id' => 'login-addon', 'style' => 'background:#ef9398; border:2px solid #dc5757; padding:0.5em; margin:2em auto; width:50em'],
html::tag('h2', ['style' => 'margin-top:0.2em'], 'Installer script is still accessible') .
html::p(null, 'The install script of your Roundcube installation is still stored in its default location!') .
html::p(null, 'Please <b>remove</b> the whole <tt>installer</tt> folder from the Roundcube directory because
these files may expose sensitive configuration data like server passwords and encryption keys
to the public. Make sure you cannot access the <a href="./installer/">installer script</a> from your browser.')
));
}
$plugin = $RCMAIL->plugins->exec_hook('unauthenticated', [
'task' => 'login',
'error' => $session_error,
// Return 401 only on failed logins (#7010)
'http_code' => empty($session_error) && !empty($error_message) ? 401 : 200,
]);
$RCMAIL->set_task($plugin['task']);
if ($plugin['http_code'] == 401) {
http_response_code(401);
}
$RCMAIL->output->send($plugin['task']);
} else {
// CSRF prevention
$RCMAIL->request_security_check();
// check access to disabled actions
$disabled_actions = (array) $RCMAIL->config->get('disabled_actions');
if (in_array($RCMAIL->task . '.' . ($RCMAIL->action ?: 'index'), $disabled_actions)) {
rcube::raise_error([
'code' => 404,
'message' => 'Action disabled',
], true, true);
}
}
$RCMAIL->action_handler();