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324 lines
12 KiB
PHP
324 lines
12 KiB
PHP
<?php
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/**
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+-------------------------------------------------------------------------+
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| Roundcube Webmail IMAP Client |
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| Version 1.4.0 |
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| Copyright (C) The Roundcube Dev Team |
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| This program is free software: you can redistribute it and/or modify |
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| it under the terms of the GNU General Public License (with exceptions |
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| for skins & plugins) as published by the Free Software Foundation, |
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| either version 3 of the License, or (at your option) any later version. |
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| |
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| This file forms part of the Roundcube Webmail Software for which the |
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| following exception is added: Plugins and Skins which merely make |
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| function calls to the Roundcube Webmail Software, and for that purpose |
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| include it by reference shall not be considered modifications of |
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| the software. |
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| |
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| If you wish to use this file in another project or create a modified |
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| version that will not be part of the Roundcube Webmail Software, you |
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| may remove the exception above and use this source code under the |
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| original version of the license. |
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| |
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| This program 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 General Public License for more details. |
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| |
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| You should have received a copy of the GNU General Public License |
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| along with this program. If not, see http://www.gnu.org/licenses/. |
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| |
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+-------------------------------------------------------------------------+
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| Author: Thomas Bruederli <roundcube@gmail.com> |
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| Author: Aleksander Machniak <alec@alec.pl> |
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+-------------------------------------------------------------------------+
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*/
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// include environment
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require_once 'program/include/iniset.php';
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// init application, start session, init output class, etc.
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$RCMAIL = rcmail::get_instance(0, $GLOBALS['env']);
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// Make the whole PHP output non-cacheable (#1487797)
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$RCMAIL->output->nocacheing_headers();
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$RCMAIL->output->common_headers(!empty($_SESSION['user_id']));
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// turn on output buffering
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ob_start();
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// check if config files had errors
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if ($err_str = $RCMAIL->config->get_error()) {
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rcmail::raise_error(array(
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'code' => 601,
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'type' => 'php',
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'message' => $err_str), false, true);
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}
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// check DB connections and exit on failure
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if ($err_str = $RCMAIL->db->is_error()) {
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rcmail::raise_error(array(
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'code' => 603,
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'type' => 'db',
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'message' => $err_str), false, true);
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}
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// error steps
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if ($RCMAIL->action == 'error' && !empty($_GET['_code'])) {
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rcmail::raise_error(array('code' => hexdec($_GET['_code'])), false, true);
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}
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// check if https is required (for login) and redirect if necessary
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if (empty($_SESSION['user_id']) && ($force_https = $RCMAIL->config->get('force_https', false))) {
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// force_https can be true, <hostname>, <hostname>:<port>, <port>
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if (!is_bool($force_https)) {
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list($host, $port) = explode(':', $force_https);
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if (is_numeric($host) && empty($port)) {
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$port = $host;
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$host = '';
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}
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}
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if (!rcube_utils::https_check($port ?: 443)) {
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if (empty($host)) {
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$host = preg_replace('/:[0-9]+$/', '', $_SERVER['HTTP_HOST']);
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}
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if ($port && $port != 443) {
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$host .= ':' . $port;
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}
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header('Location: https://' . $host . $_SERVER['REQUEST_URI']);
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exit;
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}
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}
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// trigger startup plugin hook
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$startup = $RCMAIL->plugins->exec_hook('startup', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
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$RCMAIL->set_task($startup['task']);
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$RCMAIL->action = $startup['action'];
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// try to log in
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if ($RCMAIL->task == 'login' && $RCMAIL->action == 'login') {
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$request_valid = $_SESSION['temp'] && $RCMAIL->check_request();
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$pass_charset = $RCMAIL->config->get('password_charset', 'UTF-8');
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// purge the session in case of new login when a session already exists
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$RCMAIL->kill_session();
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$auth = $RCMAIL->plugins->exec_hook('authenticate', array(
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'host' => $RCMAIL->autoselect_host(),
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'user' => trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST)),
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'pass' => rcube_utils::get_input_value('_pass', rcube_utils::INPUT_POST, true, $pass_charset),
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'valid' => $request_valid,
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'cookiecheck' => true,
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));
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// Login
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if ($auth['valid'] && !$auth['abort']
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&& $RCMAIL->login($auth['user'], $auth['pass'], $auth['host'], $auth['cookiecheck'])
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) {
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// create new session ID, don't destroy the current session
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// it was destroyed already by $RCMAIL->kill_session() above
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$RCMAIL->session->remove('temp');
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$RCMAIL->session->regenerate_id(false);
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// send auth cookie if necessary
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$RCMAIL->session->set_auth_cookie();
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// log successful login
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$RCMAIL->log_login();
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// restore original request parameters
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$query = array();
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if ($url = rcube_utils::get_input_value('_url', rcube_utils::INPUT_POST)) {
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parse_str($url, $query);
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// prevent endless looping on login page
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if ($query['_task'] == 'login') {
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unset($query['_task']);
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}
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// prevent redirect to compose with specified ID (#1488226)
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if ($query['_action'] == 'compose' && !empty($query['_id'])) {
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$query = array('_action' => 'compose');
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}
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}
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// allow plugins to control the redirect url after login success
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$redir = $RCMAIL->plugins->exec_hook('login_after', $query + array('_task' => 'mail'));
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unset($redir['abort'], $redir['_err']);
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// send redirect
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$OUTPUT->redirect($redir, 0, true);
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}
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else {
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if (!$auth['valid']) {
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$error_code = rcmail::ERROR_INVALID_REQUEST;
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}
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else {
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$error_code = is_numeric($auth['error']) ? $auth['error'] : $RCMAIL->login_error();
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}
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$error_labels = array(
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rcmail::ERROR_STORAGE => 'storageerror',
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rcmail::ERROR_COOKIES_DISABLED => 'cookiesdisabled',
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rcmail::ERROR_INVALID_REQUEST => 'invalidrequest',
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rcmail::ERROR_INVALID_HOST => 'invalidhost',
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rcmail::ERROR_RATE_LIMIT => 'accountlocked',
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);
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$error_message = !empty($auth['error']) && !is_numeric($auth['error']) ? $auth['error'] : ($error_labels[$error_code] ?: 'loginfailed');
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$OUTPUT->show_message($error_message, 'warning');
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// log failed login
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$RCMAIL->log_login($auth['user'], true, $error_code);
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$RCMAIL->plugins->exec_hook('login_failed', array(
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'code' => $error_code, 'host' => $auth['host'], 'user' => $auth['user']));
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$RCMAIL->kill_session();
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}
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}
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// end session
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else if ($RCMAIL->task == 'logout' && isset($_SESSION['user_id'])) {
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$RCMAIL->request_security_check($mode = rcube_utils::INPUT_GET);
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$userdata = array(
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'user' => $_SESSION['username'],
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'host' => $_SESSION['storage_host'],
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'lang' => $RCMAIL->user->language,
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);
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$OUTPUT->show_message('loggedout');
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$RCMAIL->logout_actions();
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$RCMAIL->kill_session();
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$RCMAIL->plugins->exec_hook('logout_after', $userdata);
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}
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// check session and auth cookie
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else if ($RCMAIL->task != 'login' && $_SESSION['user_id']) {
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if (!$RCMAIL->session->check_auth()) {
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$RCMAIL->kill_session();
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$session_error = 'sessionerror';
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}
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}
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// not logged in -> show login page
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if (empty($RCMAIL->user->ID)) {
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if ($session_error || $_REQUEST['_err'] === 'session' || ($session_error = $RCMAIL->session_error())) {
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$OUTPUT->show_message($session_error ?: 'sessionerror', 'error', null, true, -1);
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}
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if ($OUTPUT->ajax_call || $OUTPUT->get_env('framed')) {
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$OUTPUT->command('session_error', $RCMAIL->url(array('_err' => 'session')));
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$OUTPUT->send('iframe');
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}
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// check if installer is still active
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if ($RCMAIL->config->get('enable_installer') && is_readable('./installer/index.php')) {
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$OUTPUT->add_footer(html::div(array('id' => 'login-addon', 'style' => "background:#ef9398; border:2px solid #dc5757; padding:0.5em; margin:2em auto; width:50em"),
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html::tag('h2', array('style' => "margin-top:0.2em"), "Installer script is still accessible") .
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html::p(null, "The install script of your Roundcube installation is still stored in its default location!") .
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html::p(null, "Please <b>remove</b> the whole <tt>installer</tt> folder from the Roundcube directory because
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these files may expose sensitive configuration data like server passwords and encryption keys
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to the public. Make sure you cannot access the <a href=\"./installer/\">installer script</a> from your browser.")
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));
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}
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$plugin = $RCMAIL->plugins->exec_hook('unauthenticated', array(
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'task' => 'login',
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'error' => $session_error,
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// Return 401 only on failed logins (#7010)
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'http_code' => empty($session_error) && !empty($error_message) ? 401 : 200
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));
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$RCMAIL->set_task($plugin['task']);
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if ($plugin['http_code'] == 401) {
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header('HTTP/1.0 401 Unauthorized');
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}
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$OUTPUT->send($plugin['task']);
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}
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else {
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// CSRF prevention
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$RCMAIL->request_security_check();
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// check access to disabled actions
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$disabled_actions = (array) $RCMAIL->config->get('disabled_actions');
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if (in_array($RCMAIL->task . '.' . ($RCMAIL->action ?: 'index'), $disabled_actions)) {
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rcube::raise_error(array(
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'code' => 404, 'type' => 'php',
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'message' => "Action disabled"), true, true);
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}
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}
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// we're ready, user is authenticated and the request is safe
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$plugin = $RCMAIL->plugins->exec_hook('ready', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
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$RCMAIL->set_task($plugin['task']);
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$RCMAIL->action = $plugin['action'];
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// handle special actions
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if ($RCMAIL->action == 'keep-alive') {
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$OUTPUT->reset();
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$RCMAIL->plugins->exec_hook('keep_alive', array());
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$OUTPUT->send();
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}
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else if ($RCMAIL->action == 'save-pref') {
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include INSTALL_PATH . 'program/steps/utils/save_pref.inc';
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}
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// include task specific functions
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if (is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/func.inc')) {
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include_once $incfile;
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}
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// allow 5 "redirects" to another action
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$redirects = 0;
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while ($redirects < 5) {
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// execute a plugin action
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if (preg_match('/^plugin\./', $RCMAIL->action)) {
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$RCMAIL->plugins->exec_action($RCMAIL->action);
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break;
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}
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// execute action registered to a plugin task
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else if ($RCMAIL->plugins->is_plugin_task($RCMAIL->task)) {
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if (!$RCMAIL->action) $RCMAIL->action = 'index';
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$RCMAIL->plugins->exec_action($RCMAIL->task.'.'.$RCMAIL->action);
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break;
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}
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// try to include the step file
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else if (($stepfile = $RCMAIL->get_action_file())
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&& is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/'.$stepfile)
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) {
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// include action file only once (in case it don't exit)
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include_once $incfile;
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$redirects++;
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}
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else {
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break;
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}
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}
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if ($RCMAIL->action == 'refresh') {
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$RCMAIL->plugins->exec_hook('refresh', array('last' => intval(rcube_utils::get_input_value('_last', rcube_utils::INPUT_GPC))));
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}
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// parse main template (default)
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$OUTPUT->send($RCMAIL->task);
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// if we arrive here, something went wrong
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rcmail::raise_error(array(
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'code' => 404,
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'type' => 'php',
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'line' => __LINE__,
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'file' => __FILE__,
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'message' => "Invalid request"), true, true);
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