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673 lines
24 KiB
PHP
673 lines
24 KiB
PHP
<?php
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/**
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* Password Plugin for Roundcube
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*
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* @author Aleksander Machniak <alec@alec.pl>
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*
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* Copyright (C) 2005-2015, The Roundcube Dev Team
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*
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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 as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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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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define('PASSWORD_CRYPT_ERROR', 1);
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define('PASSWORD_ERROR', 2);
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define('PASSWORD_CONNECT_ERROR', 3);
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define('PASSWORD_IN_HISTORY', 4);
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define('PASSWORD_SUCCESS', 0);
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/**
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* Change password plugin
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*
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* Plugin that adds functionality to change a users password.
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* It provides common functionality and user interface and supports
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* several backends to finally update the password.
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*
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* For installation and configuration instructions please read the README file.
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*
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* @author Aleksander Machniak
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*/
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class password extends rcube_plugin
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{
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public $task = 'settings|login';
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public $noframe = true;
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public $noajax = true;
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private $newuser = false;
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function init()
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{
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$rcmail = rcmail::get_instance();
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$this->load_config();
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if ($rcmail->task == 'settings') {
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if (!$this->check_host_login_exceptions()) {
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return;
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}
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$this->add_texts('localization/');
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$this->add_hook('settings_actions', array($this, 'settings_actions'));
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$this->register_action('plugin.password', array($this, 'password_init'));
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$this->register_action('plugin.password-save', array($this, 'password_save'));
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}
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else if ($rcmail->config->get('password_force_new_user')) {
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$this->add_hook('user_create', array($this, 'user_create'));
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$this->add_hook('login_after', array($this, 'login_after'));
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}
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}
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function settings_actions($args)
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{
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// register as settings action
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$args['actions'][] = array(
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'action' => 'plugin.password',
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'class' => 'password',
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'label' => 'password',
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'title' => 'changepasswd',
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'domain' => 'password',
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);
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return $args;
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}
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function password_init()
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{
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$this->register_handler('plugin.body', array($this, 'password_form'));
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$rcmail = rcmail::get_instance();
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$rcmail->output->set_pagetitle($this->gettext('changepasswd'));
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if (rcube_utils::get_input_value('_first', rcube_utils::INPUT_GET)) {
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$rcmail->output->command('display_message', $this->gettext('firstloginchange'), 'notice');
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}
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else if (!empty($_SESSION['password_expires'])) {
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if ($_SESSION['password_expires'] == 1) {
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$rcmail->output->command('display_message', $this->gettext('passwdexpired'), 'error');
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}
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else {
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$rcmail->output->command('display_message', $this->gettext(array(
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'name' => 'passwdexpirewarning',
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'vars' => array('expirationdatetime' => $_SESSION['password_expires'])
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)), 'warning');
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}
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}
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$rcmail->output->send('plugin');
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}
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function password_save()
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{
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$this->register_handler('plugin.body', array($this, 'password_form'));
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$rcmail = rcmail::get_instance();
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$rcmail->output->set_pagetitle($this->gettext('changepasswd'));
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$form_disabled = $rcmail->config->get('password_disabled');
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$confirm = $rcmail->config->get('password_confirm_current');
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$required_length = intval($rcmail->config->get('password_minimum_length'));
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$check_strength = $rcmail->config->get('password_require_nonalpha');
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if (($confirm && !isset($_POST['_curpasswd'])) || !isset($_POST['_newpasswd'])) {
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$rcmail->output->command('display_message', $this->gettext('nopassword'), 'error');
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}
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else {
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$charset = strtoupper($rcmail->config->get('password_charset', 'ISO-8859-1'));
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$rc_charset = strtoupper($rcmail->output->get_charset());
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$sespwd = $rcmail->decrypt($_SESSION['password']);
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$curpwd = $confirm ? rcube_utils::get_input_value('_curpasswd', rcube_utils::INPUT_POST, true, $charset) : $sespwd;
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$newpwd = rcube_utils::get_input_value('_newpasswd', rcube_utils::INPUT_POST, true);
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$conpwd = rcube_utils::get_input_value('_confpasswd', rcube_utils::INPUT_POST, true);
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// check allowed characters according to the configured 'password_charset' option
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// by converting the password entered by the user to this charset and back to UTF-8
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$orig_pwd = $newpwd;
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$chk_pwd = rcube_charset::convert($orig_pwd, $rc_charset, $charset);
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$chk_pwd = rcube_charset::convert($chk_pwd, $charset, $rc_charset);
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// WARNING: Default password_charset is ISO-8859-1, so conversion will
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// change national characters. This may disable possibility of using
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// the same password in other MUA's.
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// We're doing this for consistence with Roundcube core
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$newpwd = rcube_charset::convert($newpwd, $rc_charset, $charset);
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$conpwd = rcube_charset::convert($conpwd, $rc_charset, $charset);
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if ($chk_pwd != $orig_pwd) {
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$rcmail->output->command('display_message', $this->gettext('passwordforbidden'), 'error');
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}
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// other passwords validity checks
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else if ($conpwd != $newpwd) {
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$rcmail->output->command('display_message', $this->gettext('passwordinconsistency'), 'error');
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}
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else if ($confirm && $sespwd != $curpwd) {
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$rcmail->output->command('display_message', $this->gettext('passwordincorrect'), 'error');
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}
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else if ($required_length && strlen($newpwd) < $required_length) {
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$rcmail->output->command('display_message', $this->gettext(
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array('name' => 'passwordshort', 'vars' => array('length' => $required_length))), 'error');
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}
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else if ($check_strength && (!preg_match("/[0-9]/", $newpwd) || !preg_match("/[^A-Za-z0-9]/", $newpwd))) {
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$rcmail->output->command('display_message', $this->gettext('passwordweak'), 'error');
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}
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// password is the same as the old one, warn user, return error
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else if ($sespwd == $newpwd && !$rcmail->config->get('password_force_save')) {
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$rcmail->output->command('display_message', $this->gettext('samepasswd'), 'error');
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}
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// try to save the password
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else if (!($res = $this->_save($curpwd, $newpwd))) {
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$rcmail->output->command('display_message', $this->gettext('successfullysaved'), 'confirmation');
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// allow additional actions after password change (e.g. reset some backends)
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$plugin = $rcmail->plugins->exec_hook('password_change', array(
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'old_pass' => $curpwd, 'new_pass' => $newpwd));
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// Reset session password
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$_SESSION['password'] = $rcmail->encrypt($plugin['new_pass']);
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// Log password change
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if ($rcmail->config->get('password_log')) {
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rcube::write_log('password', sprintf('Password changed for user %s (ID: %d) from %s',
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$rcmail->get_user_name(), $rcmail->user->ID, rcube_utils::remote_ip()));
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}
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// Remove expiration date/time
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$rcmail->session->remove('password_expires');
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}
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else {
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$rcmail->output->command('display_message', $res, 'error');
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}
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}
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$rcmail->overwrite_action('plugin.password');
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$rcmail->output->send('plugin');
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}
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function password_form()
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{
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$rcmail = rcmail::get_instance();
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// add some labels to client
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$rcmail->output->add_label(
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'password.nopassword',
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'password.nocurpassword',
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'password.passwordinconsistency'
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);
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$form_disabled = $rcmail->config->get('password_disabled');
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$rcmail->output->set_env('product_name', $rcmail->config->get('product_name'));
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$rcmail->output->set_env('password_disabled', !empty($form_disabled));
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$table = new html_table(array('cols' => 2));
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if ($rcmail->config->get('password_confirm_current')) {
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// show current password selection
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$field_id = 'curpasswd';
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$input_curpasswd = new html_passwordfield(array(
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'name' => '_curpasswd',
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'id' => $field_id,
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'size' => 20,
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'autocomplete' => 'off',
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));
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$table->add('title', html::label($field_id, rcube::Q($this->gettext('curpasswd'))));
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$table->add(null, $input_curpasswd->show());
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}
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// show new password selection
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$field_id = 'newpasswd';
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$input_newpasswd = new html_passwordfield(array(
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'name' => '_newpasswd',
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'id' => $field_id,
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'size' => 20,
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'autocomplete' => 'off',
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));
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$table->add('title', html::label($field_id, rcube::Q($this->gettext('newpasswd'))));
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$table->add(null, $input_newpasswd->show());
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// show confirm password selection
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$field_id = 'confpasswd';
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$input_confpasswd = new html_passwordfield(array(
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'name' => '_confpasswd',
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'id' => $field_id,
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'size' => 20,
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'autocomplete' => 'off',
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));
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$table->add('title', html::label($field_id, rcube::Q($this->gettext('confpasswd'))));
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$table->add(null, $input_confpasswd->show());
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$rules = '';
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$required_length = intval($rcmail->config->get('password_minimum_length'));
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if ($required_length > 0) {
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$rules .= html::tag('li', array('id' => 'required-length'), $this->gettext(array(
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'name' => 'passwordshort',
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'vars' => array('length' => $required_length)
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)));
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}
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if ($rcmail->config->get('password_require_nonalpha')) {
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$rules .= html::tag('li', array('id' => 'require-nonalpha'), $this->gettext('passwordweak'));
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}
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if (!empty($rules)) {
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$rules = html::tag('ul', array('id' => 'ruleslist'), $rules);
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}
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$disabled_msg = '';
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if ($form_disabled) {
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$disabled_msg = is_string($form_disabled) ? $form_disabled : $this->gettext('disablednotice');
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$disabled_msg = html::div(array('class' => 'boxwarning', 'id' => 'password-notice'), $disabled_msg);
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}
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$submit_button = $rcmail->output->button(array(
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'command' => 'plugin.password-save',
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'class' => 'button mainaction save',
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'label' => 'save',
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));
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$form_buttons = html::p(array('class' => 'formbuttons'), $submit_button);
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$out = html::div(array('class' => 'box'),
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html::div(array('id' => 'prefs-title', 'class' => 'boxtitle'), $this->gettext('changepasswd'))
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. html::div(array('class' => 'boxcontent'),
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$disabled_msg . $table->show() . $rules . $form_buttons));
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$rcmail->output->add_gui_object('passform', 'password-form');
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$this->include_script('password.js');
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return $rcmail->output->form_tag(array(
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'id' => 'password-form',
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'name' => 'password-form',
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'method' => 'post',
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'action' => './?_task=settings&_action=plugin.password-save',
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), $out);
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}
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private function _save($curpass, $passwd)
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{
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$config = rcmail::get_instance()->config;
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$driver = $config->get('password_driver', 'sql');
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$class = "rcube_{$driver}_password";
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$file = $this->home . "/drivers/$driver.php";
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if (!file_exists($file)) {
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rcube::raise_error(array(
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'code' => 600,
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'type' => 'php',
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'file' => __FILE__, 'line' => __LINE__,
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'message' => "Password plugin: Unable to open driver file ($file)"
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), true, false);
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return $this->gettext('internalerror');
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}
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include_once $file;
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if (!class_exists($class, false) || !method_exists($class, 'save')) {
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rcube::raise_error(array(
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'code' => 600,
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'type' => 'php',
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'file' => __FILE__, 'line' => __LINE__,
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'message' => "Password plugin: Broken driver $driver"
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), true, false);
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return $this->gettext('internalerror');
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}
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$object = new $class;
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$result = $object->save($curpass, $passwd);
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$message = '';
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if (is_array($result)) {
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$message = $result['message'];
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$result = $result['code'];
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}
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switch ($result) {
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case PASSWORD_SUCCESS:
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return;
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case PASSWORD_CRYPT_ERROR:
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$reason = $this->gettext('crypterror');
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break;
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case PASSWORD_CONNECT_ERROR:
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$reason = $this->gettext('connecterror');
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break;
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case PASSWORD_IN_HISTORY:
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$reason = $this->gettext('passwdinhistory');
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break;
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case PASSWORD_ERROR:
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default:
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$reason = $this->gettext('internalerror');
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}
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if ($message) {
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$reason .= ' ' . $message;
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}
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return $reason;
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}
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function user_create($args)
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{
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$this->newuser = true;
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return $args;
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}
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function login_after($args)
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{
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if ($this->newuser && $this->check_host_login_exceptions()) {
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$args['_task'] = 'settings';
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$args['_action'] = 'plugin.password';
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$args['_first'] = 'true';
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}
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return $args;
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}
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// Check if host and login is allowed to change the password, false = not allowed, true = not allowed
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private function check_host_login_exceptions()
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{
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$rcmail = rcmail::get_instance();
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// Host exceptions
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$hosts = $rcmail->config->get('password_hosts');
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if (!empty($hosts) && !in_array($_SESSION['storage_host'], (array) $hosts)) {
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return false;
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}
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// Login exceptions
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if ($exceptions = $rcmail->config->get('password_login_exceptions')) {
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$exceptions = array_map('trim', (array) $exceptions);
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$exceptions = array_filter($exceptions);
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$username = $_SESSION['username'];
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foreach ($exceptions as $ec) {
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if ($username === $ec) {
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return false;
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}
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}
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}
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return true;
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}
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/**
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* Hashes a password and returns the hash based on the specified method
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*
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* Parts of the code originally from the phpLDAPadmin development team
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* http://phpldapadmin.sourceforge.net/
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*
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* @param string Clear password
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* @param string Hashing method
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* @param bool|string Prefix string or TRUE to add a default prefix
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*
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* @return string Hashed password
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*/
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static function hash_password($password, $method = '', $prefixed = true)
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{
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$method = strtolower($method);
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$rcmail = rcmail::get_instance();
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$prefix = '';
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$crypted = '';
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$default = false;
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if (empty($method) || $method == 'default') {
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$method = $rcmail->config->get('password_algorithm');
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$prefixed = $rcmail->config->get('password_algorithm_prefix');
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$default = true;
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}
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else if ($method == 'crypt') { // deprecated
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if (!($method = $rcmail->config->get('password_crypt_hash'))) {
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$method = 'md5';
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}
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if (!strpos($method, '-crypt')) {
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$method .= '-crypt';
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}
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}
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switch ($method) {
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case 'des':
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case 'des-crypt':
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$crypted = crypt($password, rcube_utils::random_bytes(2));
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$prefix = '{CRYPT}';
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break;
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case 'ext_des': // for BC
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case 'ext-des-crypt':
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$crypted = crypt($password, '_' . rcube_utils::random_bytes(8));
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$prefix = '{CRYPT}';
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break;
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case 'md5crypt': // for BC
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case 'md5-crypt':
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$crypted = crypt($password, '$1$' . rcube_utils::random_bytes(9));
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$prefix = '{CRYPT}';
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break;
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case 'sha256-crypt':
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$rounds = (int) $rcmail->config->get('password_crypt_rounds');
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$prefix = '$5$';
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if ($rounds > 1000) {
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$prefix .= 'rounds=' . $rounds . '$';
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}
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$crypted = crypt($password, $prefix . rcube_utils::random_bytes(16));
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$prefix = '{CRYPT}';
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break;
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case 'sha512-crypt':
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$rounds = (int) $rcmail->config->get('password_crypt_rounds');
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$prefix = '$6$';
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if ($rounds > 1000) {
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$prefix .= 'rounds=' . $rounds . '$';
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}
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$crypted = crypt($password, $prefix . rcube_utils::random_bytes(16));
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$prefix = '{CRYPT}';
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break;
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case 'blowfish': // for BC
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case 'blowfish-crypt':
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$cost = (int) $rcmail->config->get('password_blowfish_cost');
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$cost = $cost < 4 || $cost > 31 ? 12 : $cost;
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$prefix = sprintf('$2a$%02d$', $cost);
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$crypted = crypt($password, $prefix . rcube_utils::random_bytes(22));
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$prefix = '{CRYPT}';
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break;
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case 'md5':
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$crypted = base64_encode(pack('H*', md5($password)));
|
|
$prefix = '{MD5}';
|
|
break;
|
|
|
|
case 'sha':
|
|
if (function_exists('sha1')) {
|
|
$crypted = pack('H*', sha1($password));
|
|
}
|
|
else if (function_exists('hash')) {
|
|
$crypted = hash('sha1', $password, true);
|
|
}
|
|
else if (function_exists('mhash')) {
|
|
$crypted = mhash(MHASH_SHA1, $password);
|
|
}
|
|
else {
|
|
rcube::raise_error(array(
|
|
'code' => 600, 'file' => __FILE__, 'line' => __LINE__,
|
|
'message' => "Password plugin: Your PHP install does not have the mhash()/hash() nor sha1() function"
|
|
), true, true);
|
|
}
|
|
|
|
$crypted = base64_encode($crypted);
|
|
$prefix = '{SHA}';
|
|
break;
|
|
|
|
case 'ssha':
|
|
$salt = rcube_utils::random_bytes(8);
|
|
|
|
if (function_exists('mhash') && function_exists('mhash_keygen_s2k')) {
|
|
$salt = mhash_keygen_s2k(MHASH_SHA1, $password, $salt, 4);
|
|
$crypted = mhash(MHASH_SHA1, $password . $salt);
|
|
}
|
|
else if (function_exists('sha1')) {
|
|
$salt = substr(pack("H*", sha1($salt . $password)), 0, 4);
|
|
$crypted = sha1($password . $salt, true);
|
|
}
|
|
else if (function_exists('hash')) {
|
|
$salt = substr(pack("H*", hash('sha1', $salt . $password)), 0, 4);
|
|
$crypted = hash('sha1', $password . $salt, true);
|
|
}
|
|
else {
|
|
rcube::raise_error(array(
|
|
'code' => 600, 'file' => __FILE__, 'line' => __LINE__,
|
|
'message' => "Password plugin: Your PHP install does not have the mhash()/hash() nor sha1() function"
|
|
), true, true);
|
|
}
|
|
|
|
$crypted = base64_encode($crypted . $salt);
|
|
$prefix = '{SSHA}';
|
|
break;
|
|
|
|
case 'smd5':
|
|
$salt = rcube_utils::random_bytes(8);
|
|
|
|
if (function_exists('mhash') && function_exists('mhash_keygen_s2k')) {
|
|
$salt = mhash_keygen_s2k(MHASH_MD5, $password, $salt, 4);
|
|
$crypted = mhash(MHASH_MD5, $password . $salt);
|
|
}
|
|
else if (function_exists('hash')) {
|
|
$salt = substr(pack("H*", hash('md5', $salt . $password)), 0, 4);
|
|
$crypted = hash('md5', $password . $salt, true);
|
|
}
|
|
else {
|
|
$salt = substr(pack("H*", md5($salt . $password)), 0, 4);
|
|
$crypted = md5($password . $salt, true);
|
|
}
|
|
|
|
$crypted = base64_encode($crypted . $salt);
|
|
$prefix = '{SMD5}';
|
|
break;
|
|
|
|
case 'samba':
|
|
if (function_exists('hash')) {
|
|
$crypted = hash('md4', rcube_charset::convert($password, RCUBE_CHARSET, 'UTF-16LE'));
|
|
$crypted = strtoupper($crypted);
|
|
}
|
|
else {
|
|
rcube::raise_error(array(
|
|
'code' => 600, 'file' => __FILE__, 'line' => __LINE__,
|
|
'message' => "Password plugin: Your PHP install does not have hash() function"
|
|
), true, true);
|
|
}
|
|
break;
|
|
|
|
case 'ad':
|
|
$crypted = rcube_charset::convert('"' . $password . '"', RCUBE_CHARSET, 'UTF-16LE');
|
|
break;
|
|
|
|
case 'cram-md5': // deprecated
|
|
require_once __DIR__ . '/../helpers/dovecot_hmacmd5.php';
|
|
$crypted = dovecot_hmacmd5($password);
|
|
$prefix = '{CRAM-MD5}';
|
|
break;
|
|
|
|
case 'dovecot':
|
|
if (!($dovecotpw = $rcmail->config->get('password_dovecotpw'))) {
|
|
$dovecotpw = 'dovecotpw';
|
|
}
|
|
if (!($method = $rcmail->config->get('password_dovecotpw_method'))) {
|
|
$method = 'CRAM-MD5';
|
|
}
|
|
|
|
$spec = array(0 => array('pipe', 'r'), 1 => array('pipe', 'w'), 2 => array('file', '/dev/null', 'a'));
|
|
$pipe = proc_open("$dovecotpw -s '$method'", $spec, $pipes);
|
|
|
|
if (!is_resource($pipe)) {
|
|
return false;
|
|
}
|
|
|
|
fwrite($pipes[0], $password . "\n", 1+strlen($password));
|
|
usleep(1000);
|
|
fwrite($pipes[0], $password . "\n", 1+strlen($password));
|
|
|
|
$crypted = trim(stream_get_contents($pipes[1]), "\n");
|
|
|
|
fclose($pipes[0]);
|
|
fclose($pipes[1]);
|
|
proc_close($pipe);
|
|
|
|
if (!preg_match('/^\{' . $method . '\}/', $crypted)) {
|
|
return false;
|
|
}
|
|
|
|
if (!$default) {
|
|
$prefixed = (bool) $rcmail->config->get('password_dovecotpw_with_method');
|
|
}
|
|
|
|
if (!$prefixed) {
|
|
$crypted = trim(str_replace('{' . $method . '}', '', $crypted));
|
|
}
|
|
|
|
$prefixed = false;
|
|
|
|
break;
|
|
|
|
case 'hash': // deprecated
|
|
if (!extension_loaded('hash')) {
|
|
rcube::raise_error(array(
|
|
'code' => 600, 'file' => __FILE__, 'line' => __LINE__,
|
|
'message' => "Password plugin: 'hash' extension not loaded!"
|
|
), true, true);
|
|
}
|
|
|
|
if (!($hash_algo = strtolower($rcmail->config->get('password_hash_algorithm')))) {
|
|
$hash_algo = 'sha1';
|
|
}
|
|
|
|
$crypted = hash($hash_algo, $password);
|
|
|
|
if ($rcmail->config->get('password_hash_base64')) {
|
|
$crypted = base64_encode(pack('H*', $crypted));
|
|
}
|
|
|
|
break;
|
|
|
|
case 'clear':
|
|
$crypted = $password;
|
|
}
|
|
|
|
if ($crypted === null || $crypted === false) {
|
|
return false;
|
|
}
|
|
|
|
if ($prefixed && $prefixed !== true) {
|
|
$prefix = $prefixed;
|
|
$prefixed = true;
|
|
}
|
|
|
|
if ($prefixed === true && $prefix) {
|
|
$crypted = $prefix . $crypted;
|
|
}
|
|
|
|
return $crypted;
|
|
}
|
|
}
|