X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=program%2Finclude%2Frcmail.php.orig;fp=program%2Finclude%2Frcmail.php.orig;h=11da5622fcdf939103cc47e322c96f5913dd8191;hb=4212156c5c79d2f58342feb0d3ed1893f177bcab;hp=0000000000000000000000000000000000000000;hpb=e8a0682b96f5b7f297e58d101735ba20a0cc3a89;p=roundcube.git diff --git a/program/include/rcmail.php.orig b/program/include/rcmail.php.orig new file mode 100644 index 0000000..11da562 --- /dev/null +++ b/program/include/rcmail.php.orig @@ -0,0 +1,1327 @@ + | + +-----------------------------------------------------------------------+ + + $Id: rcmail.php 4396 2011-01-06 12:41:16Z thomasb $ + +*/ + + +/** + * Application class of Roundcube Webmail + * implemented as singleton + * + * @package Core + */ +class rcmail +{ + /** + * Main tasks. + * + * @var array + */ + static public $main_tasks = array('mail','settings','addressbook','login','logout','utils','dummy'); + + /** + * Singleton instace of rcmail + * + * @var rcmail + */ + static private $instance; + + /** + * Stores instance of rcube_config. + * + * @var rcube_config + */ + public $config; + + /** + * Stores rcube_user instance. + * + * @var rcube_user + */ + public $user; + + /** + * Instace of database class. + * + * @var rcube_mdb2 + */ + public $db; + + /** + * Instace of rcube_session class. + * + * @var rcube_session + */ + public $session; + + /** + * Instance of rcube_smtp class. + * + * @var rcube_smtp + */ + public $smtp; + + /** + * Instance of rcube_imap class. + * + * @var rcube_imap + */ + public $imap; + + /** + * Instance of rcube_template class. + * + * @var rcube_template + */ + public $output; + + /** + * Instance of rcube_plugin_api. + * + * @var rcube_plugin_api + */ + public $plugins; + + /** + * Current task. + * + * @var string + */ + public $task; + + /** + * Current action. + * + * @var string + */ + public $action = ''; + public $comm_path = './'; + + private $texts; + private $books = array(); + + + /** + * This implements the 'singleton' design pattern + * + * @return rcmail The one and only instance + */ + static function get_instance() + { + if (!self::$instance) { + self::$instance = new rcmail(); + self::$instance->startup(); // init AFTER object was linked with self::$instance + } + + return self::$instance; + } + + + /** + * Private constructor + */ + private function __construct() + { + // load configuration + $this->config = new rcube_config(); + + register_shutdown_function(array($this, 'shutdown')); + } + + + /** + * Initial startup function + * to register session, create database and imap connections + * + * @todo Remove global vars $DB, $USER + */ + private function startup() + { + // initialize syslog + if ($this->config->get('log_driver') == 'syslog') { + $syslog_id = $this->config->get('syslog_id', 'roundcube'); + $syslog_facility = $this->config->get('syslog_facility', LOG_USER); + openlog($syslog_id, LOG_ODELAY, $syslog_facility); + } + + // connect to database + $GLOBALS['DB'] = $this->get_dbh(); + + // start session + $this->session_init(); + + // create user object + $this->set_user(new rcube_user($_SESSION['user_id'])); + + // configure session (after user config merge!) + $this->session_configure(); + + // set task and action properties + $this->set_task(get_input_value('_task', RCUBE_INPUT_GPC)); + $this->action = asciiwords(get_input_value('_action', RCUBE_INPUT_GPC)); + + // reset some session parameters when changing task + if ($this->task != 'utils') { + if ($this->session && $_SESSION['task'] != $this->task) + $this->session->remove('page'); + // set current task to session + $_SESSION['task'] = $this->task; + } + + // init output class + if (!empty($_REQUEST['_remote'])) + $GLOBALS['OUTPUT'] = $this->json_init(); + else + $GLOBALS['OUTPUT'] = $this->load_gui(!empty($_REQUEST['_framed'])); + + // create plugin API and load plugins + $this->plugins = rcube_plugin_api::get_instance(); + + // init plugins + $this->plugins->init(); + } + + + /** + * Setter for application task + * + * @param string Task to set + */ + public function set_task($task) + { + $task = asciiwords($task); + + if ($this->user && $this->user->ID) + $task = !$task ? 'mail' : $task; + else + $task = 'login'; + + $this->task = $task; + $this->comm_path = $this->url(array('task' => $this->task)); + + if ($this->output) + $this->output->set_env('task', $this->task); + } + + + /** + * Setter for system user object + * + * @param rcube_user Current user instance + */ + public function set_user($user) + { + if (is_object($user)) { + $this->user = $user; + $GLOBALS['USER'] = $this->user; + + // overwrite config with user preferences + $this->config->set_user_prefs((array)$this->user->get_prefs()); + } + + $_SESSION['language'] = $this->user->language = $this->language_prop($this->config->get('language', $_SESSION['language'])); + + // set localization + setlocale(LC_ALL, $_SESSION['language'] . '.utf8', 'en_US.utf8'); + + // workaround for http://bugs.php.net/bug.php?id=18556 + if (in_array($_SESSION['language'], array('tr_TR', 'ku', 'az_AZ'))) + setlocale(LC_CTYPE, 'en_US' . '.utf8'); + } + + + /** + * Check the given string and return a valid language code + * + * @param string Language code + * @return string Valid language code + */ + private function language_prop($lang) + { + static $rcube_languages, $rcube_language_aliases; + + // user HTTP_ACCEPT_LANGUAGE if no language is specified + if (empty($lang) || $lang == 'auto') { + $accept_langs = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']); + $lang = str_replace('-', '_', $accept_langs[0]); + } + + if (empty($rcube_languages)) { + @include(INSTALL_PATH . 'program/localization/index.inc'); + } + + // check if we have an alias for that language + if (!isset($rcube_languages[$lang]) && isset($rcube_language_aliases[$lang])) { + $lang = $rcube_language_aliases[$lang]; + } + // try the first two chars + else if (!isset($rcube_languages[$lang])) { + $short = substr($lang, 0, 2); + + // check if we have an alias for the short language code + if (!isset($rcube_languages[$short]) && isset($rcube_language_aliases[$short])) { + $lang = $rcube_language_aliases[$short]; + } + // expand 'nn' to 'nn_NN' + else if (!isset($rcube_languages[$short])) { + $lang = $short.'_'.strtoupper($short); + } + } + + if (!isset($rcube_languages[$lang]) || !is_dir(INSTALL_PATH . 'program/localization/' . $lang)) { + $lang = 'en_US'; + } + + return $lang; + } + + + /** + * Get the current database connection + * + * @return rcube_mdb2 Database connection object + */ + public function get_dbh() + { + if (!$this->db) { + $config_all = $this->config->all(); + + $this->db = new rcube_mdb2($config_all['db_dsnw'], $config_all['db_dsnr'], $config_all['db_persistent']); + $this->db->sqlite_initials = INSTALL_PATH . 'SQL/sqlite.initial.sql'; + $this->db->set_debug((bool)$config_all['sql_debug']); + } + + return $this->db; + } + + + /** + * Return instance of the internal address book class + * + * @param string Address book identifier + * @param boolean True if the address book needs to be writeable + * @return rcube_contacts Address book object + */ + public function get_address_book($id, $writeable = false) + { + $contacts = null; + $ldap_config = (array)$this->config->get('ldap_public'); + $abook_type = strtolower($this->config->get('address_book_type')); + + $plugin = $this->plugins->exec_hook('addressbook_get', array('id' => $id, 'writeable' => $writeable)); + + // plugin returned instance of a rcube_addressbook + if ($plugin['instance'] instanceof rcube_addressbook) { + $contacts = $plugin['instance']; + } + else if ($id && $ldap_config[$id]) { + $contacts = new rcube_ldap($ldap_config[$id], $this->config->get('ldap_debug'), $this->config->mail_domain($_SESSION['imap_host'])); + } + else if ($id === '0') { + $contacts = new rcube_contacts($this->db, $this->user->ID); + } + else if ($abook_type == 'ldap') { + // Use the first writable LDAP address book. + foreach ($ldap_config as $id => $prop) { + if (!$writeable || $prop['writable']) { + $contacts = new rcube_ldap($prop, $this->config->get('ldap_debug'), $this->config->mail_domain($_SESSION['imap_host'])); + break; + } + } + } + else { // $id == 'sql' + $contacts = new rcube_contacts($this->db, $this->user->ID); + } + + // add to the 'books' array for shutdown function + if (!in_array($contacts, $this->books)) + $this->books[] = $contacts; + + return $contacts; + } + + + /** + * Return address books list + * + * @param boolean True if the address book needs to be writeable + * @return array Address books array + */ + public function get_address_sources($writeable = false) + { + $abook_type = strtolower($this->config->get('address_book_type')); + $ldap_config = $this->config->get('ldap_public'); + $autocomplete = (array) $this->config->get('autocomplete_addressbooks'); + $list = array(); + + // We are using the DB address book + if ($abook_type != 'ldap') { + $contacts = new rcube_contacts($this->db, null); + $list['0'] = array( + 'id' => 0, + 'name' => rcube_label('personaladrbook'), + 'groups' => $contacts->groups, + 'readonly' => false, + 'autocomplete' => in_array('sql', $autocomplete) + ); + } + + if ($ldap_config) { + $ldap_config = (array) $ldap_config; + foreach ($ldap_config as $id => $prop) + $list[$id] = array( + 'id' => $id, + 'name' => $prop['name'], + 'groups' => false, + 'readonly' => !$prop['writable'], + 'autocomplete' => in_array('sql', $autocomplete) + ); + } + + $plugin = $this->plugins->exec_hook('addressbooks_list', array('sources' => $list)); + $list = $plugin['sources']; + + if ($writeable && !empty($list)) { + foreach ($list as $idx => $item) { + if ($item['readonly']) { + unset($list[$idx]); + } + } + } + + return $list; + } + + + /** + * Init output object for GUI and add common scripts. + * This will instantiate a rcmail_template object and set + * environment vars according to the current session and configuration + * + * @param boolean True if this request is loaded in a (i)frame + * @return rcube_template Reference to HTML output object + */ + public function load_gui($framed = false) + { + // init output page + if (!($this->output instanceof rcube_template)) + $this->output = new rcube_template($this->task, $framed); + + // set keep-alive/check-recent interval + if ($this->session && ($keep_alive = $this->session->get_keep_alive())) { + $this->output->set_env('keep_alive', $keep_alive); + } + + if ($framed) { + $this->comm_path .= '&_framed=1'; + $this->output->set_env('framed', true); + } + + $this->output->set_env('task', $this->task); + $this->output->set_env('action', $this->action); + $this->output->set_env('comm_path', $this->comm_path); + $this->output->set_charset(RCMAIL_CHARSET); + + // add some basic label to client + $this->output->add_label('loading', 'servererror'); + + return $this->output; + } + + + /** + * Create an output object for JSON responses + * + * @return rcube_json_output Reference to JSON output object + */ + public function json_init() + { + if (!($this->output instanceof rcube_json_output)) + $this->output = new rcube_json_output($this->task); + + return $this->output; + } + + + /** + * Create SMTP object and connect to server + * + * @param boolean True if connection should be established + */ + public function smtp_init($connect = false) + { + $this->smtp = new rcube_smtp(); + + if ($connect) + $this->smtp->connect(); + } + + + /** + * Create global IMAP object and connect to server + * + * @param boolean True if connection should be established + * @todo Remove global $IMAP + */ + public function imap_init($connect = false) + { + // already initialized + if (is_object($this->imap)) + return; + + $this->imap = new rcube_imap($this->db); + $this->imap->debug_level = $this->config->get('debug_level'); + $this->imap->skip_deleted = $this->config->get('skip_deleted'); + + // enable caching of imap data + if ($this->config->get('enable_caching')) { + $this->imap->set_caching(true); + } + + // set pagesize from config + $this->imap->set_pagesize($this->config->get('pagesize', 50)); + + // Setting root and delimiter before establishing the connection + // can save time detecting them using NAMESPACE and LIST + $options = array( + 'auth_method' => $this->config->get('imap_auth_type', 'check'), + 'auth_cid' => $this->config->get('imap_auth_cid'), + 'auth_pw' => $this->config->get('imap_auth_pw'), + 'debug' => (bool) $this->config->get('imap_debug', 0), + 'force_caps' => (bool) $this->config->get('imap_force_caps'), + 'timeout' => (int) $this->config->get('imap_timeout', 0), + ); + + $this->imap->set_options($options); + + // set global object for backward compatibility + $GLOBALS['IMAP'] = $this->imap; + + $hook = $this->plugins->exec_hook('imap_init', array('fetch_headers' => $this->imap->fetch_add_headers)); + if ($hook['fetch_headers']) + $this->imap->fetch_add_headers = $hook['fetch_headers']; + + // support this parameter for backward compatibility but log warning + if ($connect) { + $this->imap_connect(); + raise_error(array( + 'code' => 800, 'type' => 'imap', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "rcube::imap_init(true) is deprecated, use rcube::imap_connect() instead"), + true, false); + } + } + + + /** + * Connect to IMAP server with stored session data + * + * @return bool True on success, false on error + */ + public function imap_connect() + { + if (!$this->imap) + $this->imap_init(); + + if ($_SESSION['imap_host'] && !$this->imap->conn->connected()) { + if (!$this->imap->connect($_SESSION['imap_host'], $_SESSION['username'], $this->decrypt($_SESSION['password']), $_SESSION['imap_port'], $_SESSION['imap_ssl'])) { + if ($this->output) + $this->output->show_message($this->imap->get_error_code() == -1 ? 'imaperror' : 'sessionerror', 'error'); + } + else { + $this->set_imap_prop(); + return $this->imap->conn; + } + } + + return false; + } + + + /** + * Create session object and start the session. + */ + public function session_init() + { + // session started (Installer?) + if (session_id()) + return; + + $lifetime = $this->config->get('session_lifetime', 0) * 60; + + // set session domain + if ($domain = $this->config->get('session_domain')) { + ini_set('session.cookie_domain', $domain); + } + // set session garbage collecting time according to session_lifetime + if ($lifetime) { + ini_set('session.gc_maxlifetime', $lifetime * 2); + } + + ini_set('session.cookie_secure', rcube_https_check()); + ini_set('session.name', 'roundcube_sessid'); + ini_set('session.use_cookies', 1); + ini_set('session.use_only_cookies', 1); + ini_set('session.serialize_handler', 'php'); + + // use database for storing session data + $this->session = new rcube_session($this->get_dbh(), $lifetime); + + $this->session->register_gc_handler('rcmail_temp_gc'); + if ($this->config->get('enable_caching')) + $this->session->register_gc_handler('rcmail_cache_gc'); + + // start PHP session (if not in CLI mode) + if ($_SERVER['REMOTE_ADDR']) + session_start(); + + // set initial session vars + if (!isset($_SESSION['auth_time'])) { + $_SESSION['auth_time'] = time(); + $_SESSION['temp'] = true; + } + } + + + /** + * Configure session object internals + */ + public function session_configure() + { + if (!$this->session) + return; + + $lifetime = $this->config->get('session_lifetime', 0) * 60; + + // set keep-alive/check-recent interval + if ($keep_alive = $this->config->get('keep_alive')) { + // be sure that it's less than session lifetime + if ($lifetime) + $keep_alive = min($keep_alive, $lifetime - 30); + $keep_alive = max(60, $keep_alive); + $this->session->set_keep_alive($keep_alive); + } + } + + + /** + * Perfom login to the IMAP server and to the webmail service. + * This will also create a new user entry if auto_create_user is configured. + * + * @param string IMAP user name + * @param string IMAP password + * @param string IMAP host + * @return boolean True on success, False on failure + */ + function login($username, $pass, $host=NULL) + { + $user = NULL; + $config = $this->config->all(); + + if (!$host) + $host = $config['default_host']; + + // Validate that selected host is in the list of configured hosts + if (is_array($config['default_host'])) { + $allowed = false; + foreach ($config['default_host'] as $key => $host_allowed) { + if (!is_numeric($key)) + $host_allowed = $key; + if ($host == $host_allowed) { + $allowed = true; + break; + } + } + if (!$allowed) + return false; + } + else if (!empty($config['default_host']) && $host != rcube_parse_host($config['default_host'])) + return false; + + // parse $host URL + $a_host = parse_url($host); + if ($a_host['host']) { + $host = $a_host['host']; + $imap_ssl = (isset($a_host['scheme']) && in_array($a_host['scheme'], array('ssl','imaps','tls'))) ? $a_host['scheme'] : null; + if (!empty($a_host['port'])) + $imap_port = $a_host['port']; + else if ($imap_ssl && $imap_ssl != 'tls' && (!$config['default_port'] || $config['default_port'] == 143)) + $imap_port = 993; + } + + $imap_port = $imap_port ? $imap_port : $config['default_port']; + + /* Modify username with domain if required + Inspired by Marco + */ + // Check if we need to add domain + if (!empty($config['username_domain']) && strpos($username, '@') === false) { + if (is_array($config['username_domain']) && isset($config['username_domain'][$host])) + $username .= '@'.rcube_parse_host($config['username_domain'][$host]); + else if (is_string($config['username_domain'])) + $username .= '@'.rcube_parse_host($config['username_domain']); + } + + // Convert username to lowercase. If IMAP backend + // is case-insensitive we need to store always the same username (#1487113) + if ($config['login_lc']) { + $username = mb_strtolower($username); + } + + // try to resolve email address from virtuser table + if (strpos($username, '@') && ($virtuser = rcube_user::email2user($username))) { + $username = $virtuser; + } + + // Here we need IDNA ASCII + // Only rcube_contacts class is using domain names in Unicode + $host = idn_to_ascii($host); + if (strpos($username, '@')) { + // lowercase domain name + list($local, $domain) = explode('@', $username); + $username = $local . '@' . mb_strtolower($domain); + $username = idn_to_ascii($username); + } + + // user already registered -> overwrite username + if ($user = rcube_user::query($username, $host)) + $username = $user->data['username']; + + if (!$this->imap) + $this->imap_init(); + + // try IMAP login + if (!($imap_login = $this->imap->connect($host, $username, $pass, $imap_port, $imap_ssl))) { + // try with lowercase + $username_lc = mb_strtolower($username); + if ($username_lc != $username) { + // try to find user record again -> overwrite username + if (!$user && ($user = rcube_user::query($username_lc, $host))) + $username_lc = $user->data['username']; + + if ($imap_login = $this->imap->connect($host, $username_lc, $pass, $imap_port, $imap_ssl)) + $username = $username_lc; + } + } + + // exit if IMAP login failed + if (!$imap_login) + return false; + + $this->set_imap_prop(); + + // user already registered -> update user's record + if (is_object($user)) { + // create default folders on first login + if (!$user->data['last_login'] && $config['create_default_folders']) + $this->imap->create_default_folders(); + $user->touch(); + } + // create new system user + else if ($config['auto_create_user']) { + if ($created = rcube_user::create($username, $host)) { + $user = $created; + // create default folders on first login + if ($config['create_default_folders']) + $this->imap->create_default_folders(); + } + else { + raise_error(array( + 'code' => 600, 'type' => 'php', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "Failed to create a user record. Maybe aborted by a plugin?" + ), true, false); + } + } + else { + raise_error(array( + 'code' => 600, 'type' => 'php', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "Acces denied for new user $username. 'auto_create_user' is disabled" + ), true, false); + } + + // login succeeded + if (is_object($user) && $user->ID) { + $this->set_user($user); + + // set session vars + $_SESSION['user_id'] = $user->ID; + $_SESSION['username'] = $user->data['username']; + $_SESSION['imap_host'] = $host; + $_SESSION['imap_port'] = $imap_port; + $_SESSION['imap_ssl'] = $imap_ssl; + $_SESSION['password'] = $this->encrypt($pass); + $_SESSION['login_time'] = mktime(); + + if (isset($_REQUEST['_timezone']) && $_REQUEST['_timezone'] != '_default_') + $_SESSION['timezone'] = floatval($_REQUEST['_timezone']); + + // force reloading complete list of subscribed mailboxes + $this->imap->clear_cache('mailboxes'); + + return true; + } + + return false; + } + + + /** + * Set root dir and last stored mailbox + * This must be done AFTER connecting to the server! + */ + public function set_imap_prop() + { + $this->imap->set_charset($this->config->get('default_charset', RCMAIL_CHARSET)); + + if ($default_folders = $this->config->get('default_imap_folders')) { + $this->imap->set_default_mailboxes($default_folders); + } + if (isset($_SESSION['mbox'])) { + $this->imap->set_mailbox($_SESSION['mbox']); + } + if (isset($_SESSION['page'])) { + $this->imap->set_page($_SESSION['page']); + } + } + + + /** + * Auto-select IMAP host based on the posted login information + * + * @return string Selected IMAP host + */ + public function autoselect_host() + { + $default_host = $this->config->get('default_host'); + $host = null; + + if (is_array($default_host)) { + $post_host = get_input_value('_host', RCUBE_INPUT_POST); + + // direct match in default_host array + if ($default_host[$post_host] || in_array($post_host, array_values($default_host))) { + $host = $post_host; + } + + // try to select host by mail domain + list($user, $domain) = explode('@', get_input_value('_user', RCUBE_INPUT_POST)); + if (!empty($domain)) { + foreach ($default_host as $imap_host => $mail_domains) { + if (is_array($mail_domains) && in_array($domain, $mail_domains)) { + $host = $imap_host; + break; + } + } + } + + // take the first entry if $host is still an array + if (empty($host)) { + $host = array_shift($default_host); + } + } + else if (empty($default_host)) { + $host = get_input_value('_host', RCUBE_INPUT_POST); + } + else + $host = rcube_parse_host($default_host); + + return $host; + } + + + /** + * Get localized text in the desired language + * + * @param mixed Named parameters array or label name + * @return string Localized text + */ + public function gettext($attrib, $domain=null) + { + // load localization files if not done yet + if (empty($this->texts)) + $this->load_language(); + + // extract attributes + if (is_string($attrib)) + $attrib = array('name' => $attrib); + + $nr = is_numeric($attrib['nr']) ? $attrib['nr'] : 1; + $name = $attrib['name'] ? $attrib['name'] : ''; + + // check for text with domain + if ($domain && ($text_item = $this->texts[$domain.'.'.$name])) + ; + // text does not exist + else if (!($text_item = $this->texts[$name])) { + return "[$name]"; + } + + // make text item array + $a_text_item = is_array($text_item) ? $text_item : array('single' => $text_item); + + // decide which text to use + if ($nr == 1) { + $text = $a_text_item['single']; + } + else if ($nr > 0) { + $text = $a_text_item['multiple']; + } + else if ($nr == 0) { + if ($a_text_item['none']) + $text = $a_text_item['none']; + else if ($a_text_item['single']) + $text = $a_text_item['single']; + else if ($a_text_item['multiple']) + $text = $a_text_item['multiple']; + } + + // default text is single + if ($text == '') { + $text = $a_text_item['single']; + } + + // replace vars in text + if (is_array($attrib['vars'])) { + foreach ($attrib['vars'] as $var_key => $var_value) + $text = str_replace($var_key[0]!='$' ? '$'.$var_key : $var_key, $var_value, $text); + } + + // format output + if (($attrib['uppercase'] && strtolower($attrib['uppercase']=='first')) || $attrib['ucfirst']) + return ucfirst($text); + else if ($attrib['uppercase']) + return mb_strtoupper($text); + else if ($attrib['lowercase']) + return mb_strtolower($text); + + return $text; + } + + + /** + * Load a localization package + * + * @param string Language ID + */ + public function load_language($lang = null, $add = array()) + { + $lang = $this->language_prop(($lang ? $lang : $_SESSION['language'])); + + // load localized texts + if (empty($this->texts) || $lang != $_SESSION['language']) { + $this->texts = array(); + + // handle empty lines after closing PHP tag in localization files + ob_start(); + + // get english labels (these should be complete) + @include(INSTALL_PATH . 'program/localization/en_US/labels.inc'); + @include(INSTALL_PATH . 'program/localization/en_US/messages.inc'); + + if (is_array($labels)) + $this->texts = $labels; + if (is_array($messages)) + $this->texts = array_merge($this->texts, $messages); + + // include user language files + if ($lang != 'en' && is_dir(INSTALL_PATH . 'program/localization/' . $lang)) { + include_once(INSTALL_PATH . 'program/localization/' . $lang . '/labels.inc'); + include_once(INSTALL_PATH . 'program/localization/' . $lang . '/messages.inc'); + + if (is_array($labels)) + $this->texts = array_merge($this->texts, $labels); + if (is_array($messages)) + $this->texts = array_merge($this->texts, $messages); + } + + ob_end_clean(); + + $_SESSION['language'] = $lang; + } + + // append additional texts (from plugin) + if (is_array($add) && !empty($add)) + $this->texts += $add; + } + + + /** + * Read directory program/localization and return a list of available languages + * + * @return array List of available localizations + */ + public function list_languages() + { + static $sa_languages = array(); + + if (!sizeof($sa_languages)) { + @include(INSTALL_PATH . 'program/localization/index.inc'); + + if ($dh = @opendir(INSTALL_PATH . 'program/localization')) { + while (($name = readdir($dh)) !== false) { + if ($name[0] == '.' || !is_dir(INSTALL_PATH . 'program/localization/' . $name)) + continue; + + if ($label = $rcube_languages[$name]) + $sa_languages[$name] = $label; + } + closedir($dh); + } + } + + return $sa_languages; + } + + + /** + * Check the auth hash sent by the client against the local session credentials + * + * @return boolean True if valid, False if not + */ + function authenticate_session() + { + // advanced session authentication + if ($this->config->get('double_auth')) { + $now = time(); + $valid = ($_COOKIE['sessauth'] == $this->get_auth_hash(session_id(), $_SESSION['auth_time']) || + $_COOKIE['sessauth'] == $this->get_auth_hash(session_id(), $_SESSION['last_auth'])); + + // renew auth cookie every 5 minutes (only for GET requests) + if (!$valid || ($_SERVER['REQUEST_METHOD']!='POST' && $now - $_SESSION['auth_time'] > 300)) { + $_SESSION['last_auth'] = $_SESSION['auth_time']; + $_SESSION['auth_time'] = $now; + rcmail::setcookie('sessauth', $this->get_auth_hash(session_id(), $now), 0); + } + } + else { + $valid = $this->config->get('ip_check') ? $_SERVER['REMOTE_ADDR'] == $this->session->get_ip() : true; + } + + // check session filetime + $lifetime = $this->config->get('session_lifetime'); + $sess_ts = $this->session->get_ts(); + if (!empty($lifetime) && !empty($sess_ts) && $sess_ts + $lifetime*60 < time()) { + $valid = false; + } + + return $valid; + } + + + /** + * Destroy session data and remove cookie + */ + public function kill_session() + { + $this->plugins->exec_hook('session_destroy'); + + $this->session->remove(); + $_SESSION = array('language' => $this->user->language, 'auth_time' => time(), 'temp' => true); + rcmail::setcookie('sessauth', '-del-', time() - 60); + $this->user->reset(); + } + + + /** + * Do server side actions on logout + */ + public function logout_actions() + { + $config = $this->config->all(); + + // on logout action we're not connected to imap server + if (($config['logout_purge'] && !empty($config['trash_mbox'])) || $config['logout_expunge']) { + if (!$this->authenticate_session()) + return; + + $this->imap_connect(); + } + + if ($config['logout_purge'] && !empty($config['trash_mbox'])) { + $this->imap->clear_mailbox($config['trash_mbox']); + } + + if ($config['logout_expunge']) { + $this->imap->expunge('INBOX'); + } + } + + + /** + * Function to be executed in script shutdown + * Registered with register_shutdown_function() + */ + public function shutdown() + { + if (is_object($this->imap)) + $this->imap->close(); + + if (is_object($this->smtp)) + $this->smtp->disconnect(); + + foreach ($this->books as $book) + if (is_object($book)) + $book->close(); + + // before closing the database connection, write session data + if ($_SERVER['REMOTE_ADDR']) + session_write_close(); + + // write performance stats to logs/console + if ($this->config->get('devel_mode')) { + if (function_exists('memory_get_usage')) + $mem = show_bytes(memory_get_usage()); + if (function_exists('memory_get_peak_usage')) + $mem .= '/'.show_bytes(memory_get_peak_usage()); + + $log = $this->task . ($this->action ? '/'.$this->action : '') . ($mem ? " [$mem]" : ''); + if (defined('RCMAIL_START')) + rcube_print_time(RCMAIL_START, $log); + else + console($log); + } + } + + + /** + * Generate a unique token to be used in a form request + * + * @return string The request token + */ + public function get_request_token() + { + $key = $this->task; + + if (!$_SESSION['request_tokens'][$key]) + $_SESSION['request_tokens'][$key] = md5(uniqid($key . mt_rand(), true)); + + return $_SESSION['request_tokens'][$key]; + } + + + /** + * Check if the current request contains a valid token + * + * @param int Request method + * @return boolean True if request token is valid false if not + */ + public function check_request($mode = RCUBE_INPUT_POST) + { + $token = get_input_value('_token', $mode); + return !empty($token) && $_SESSION['request_tokens'][$this->task] == $token; + } + + + /** + * Create unique authorization hash + * + * @param string Session ID + * @param int Timestamp + * @return string The generated auth hash + */ + private function get_auth_hash($sess_id, $ts) + { + $auth_string = sprintf('rcmail*sess%sR%s*Chk:%s;%s', + $sess_id, + $ts, + $this->config->get('ip_check') ? $_SERVER['REMOTE_ADDR'] : '***.***.***.***', + $_SERVER['HTTP_USER_AGENT']); + + if (function_exists('sha1')) + return sha1($auth_string); + else + return md5($auth_string); + } + + + /** + * Encrypt using 3DES + * + * @param string $clear clear text input + * @param string $key encryption key to retrieve from the configuration, defaults to 'des_key' + * @param boolean $base64 whether or not to base64_encode() the result before returning + * + * @return string encrypted text + */ + public function encrypt($clear, $key = 'des_key', $base64 = true) + { + if (!$clear) + return ''; + /*- + * Add a single canary byte to the end of the clear text, which + * will help find out how much of padding will need to be removed + * upon decryption; see http://php.net/mcrypt_generic#68082 + */ + $clear = pack("a*H2", $clear, "80"); + + if (function_exists('mcrypt_module_open') && + ($td = mcrypt_module_open(MCRYPT_TripleDES, "", MCRYPT_MODE_CBC, ""))) + { + $iv = $this->create_iv(mcrypt_enc_get_iv_size($td)); + mcrypt_generic_init($td, $this->config->get_crypto_key($key), $iv); + $cipher = $iv . mcrypt_generic($td, $clear); + mcrypt_generic_deinit($td); + mcrypt_module_close($td); + } + else { + @include_once('lib/des.inc'); + + if (function_exists('des')) { + $des_iv_size = 8; + $iv = $this->create_iv($des_iv_size); + $cipher = $iv . des($this->config->get_crypto_key($key), $clear, 1, 1, $iv); + } + else { + raise_error(array( + 'code' => 500, 'type' => 'php', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "Could not perform encryption; make sure Mcrypt is installed or lib/des.inc is available" + ), true, true); + } + } + + return $base64 ? base64_encode($cipher) : $cipher; + } + + /** + * Decrypt 3DES-encrypted string + * + * @param string $cipher encrypted text + * @param string $key encryption key to retrieve from the configuration, defaults to 'des_key' + * @param boolean $base64 whether or not input is base64-encoded + * + * @return string decrypted text + */ + public function decrypt($cipher, $key = 'des_key', $base64 = true) + { + if (!$cipher) + return ''; + + $cipher = $base64 ? base64_decode($cipher) : $cipher; + + if (function_exists('mcrypt_module_open') && + ($td = mcrypt_module_open(MCRYPT_TripleDES, "", MCRYPT_MODE_CBC, ""))) + { + $iv_size = mcrypt_enc_get_iv_size($td); + $iv = substr($cipher, 0, $iv_size); + + // session corruption? (#1485970) + if (strlen($iv) < $iv_size) + return ''; + + $cipher = substr($cipher, $iv_size); + mcrypt_generic_init($td, $this->config->get_crypto_key($key), $iv); + $clear = mdecrypt_generic($td, $cipher); + mcrypt_generic_deinit($td); + mcrypt_module_close($td); + } + else { + @include_once('lib/des.inc'); + + if (function_exists('des')) { + $des_iv_size = 8; + $iv = substr($cipher, 0, $des_iv_size); + $cipher = substr($cipher, $des_iv_size); + $clear = des($this->config->get_crypto_key($key), $cipher, 0, 1, $iv); + } + else { + raise_error(array( + 'code' => 500, 'type' => 'php', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "Could not perform decryption; make sure Mcrypt is installed or lib/des.inc is available" + ), true, true); + } + } + + /*- + * Trim PHP's padding and the canary byte; see note in + * rcmail::encrypt() and http://php.net/mcrypt_generic#68082 + */ + $clear = substr(rtrim($clear, "\0"), 0, -1); + + return $clear; + } + + /** + * Generates encryption initialization vector (IV) + * + * @param int Vector size + * @return string Vector string + */ + private function create_iv($size) + { + // mcrypt_create_iv() can be slow when system lacks entrophy + // we'll generate IV vector manually + $iv = ''; + for ($i = 0; $i < $size; $i++) + $iv .= chr(mt_rand(0, 255)); + return $iv; + } + + /** + * Build a valid URL to this instance of Roundcube + * + * @param mixed Either a string with the action or url parameters as key-value pairs + * @return string Valid application URL + */ + public function url($p) + { + if (!is_array($p)) + $p = array('_action' => @func_get_arg(0)); + + $task = $p['_task'] ? $p['_task'] : ($p['task'] ? $p['task'] : $this->task); + $p['_task'] = $task; + unset($p['task']); + + $url = './'; + $delm = '?'; + foreach (array_reverse($p) as $key => $val) + { + if (!empty($val)) { + $par = $key[0] == '_' ? $key : '_'.$key; + $url .= $delm.urlencode($par).'='.urlencode($val); + $delm = '&'; + } + } + return $url; + } + + + /** + * Helper method to set a cookie with the current path and host settings + * + * @param string Cookie name + * @param string Cookie value + * @param string Expiration time + */ + public static function setcookie($name, $value, $exp = 0) + { + if (headers_sent()) + return; + + $cookie = session_get_cookie_params(); + + setcookie($name, $value, $exp, $cookie['path'], $cookie['domain'], + rcube_https_check(), true); + } +} + +