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roundcubemail/program/include/rcmail.php

1665 lines
47 KiB
PHP

<?php
/*
+-----------------------------------------------------------------------+
| program/include/rcmail.php |
| |
| This file is part of the Roundcube Webmail client |
| Copyright (C) 2008-2011, The Roundcube Dev Team |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
| Application class providing core functions and holding |
| instances of all 'global' objects like db- and imap-connections |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
$Id$
*/
/**
* 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 Memcache class.
*
* @var rcube_mdb2
*/
public $memcache;
/**
* 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 $address_books = array();
private $caches = array();
private $action_map = array();
private $shutdown_functions = array();
/**
* This implements the 'singleton' design pattern
*
* @return rcmail The one and only instance
*/
static function get_instance()
{
if (!self::$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 $this->db;
}
/**
* Get global handle for memcache access
*
* @return object Memcache
*/
public function get_memcache()
{
if (!isset($this->memcache)) {
// no memcache support in PHP
if (!class_exists('Memcache')) {
$this->memcache = false;
return false;
}
$this->memcache = new Memcache;
$mc_available = 0;
foreach ($this->config->get('memcache_hosts', array()) as $host) {
list($host, $port) = explode(':', $host);
if (!$port) $port = 11211;
// add server and attempt to connect if not already done yet
if ($this->memcache->addServer($host, $port) && !$mc_available)
$mc_available += intval($this->memcache->connect($host, $port));
}
if (!$mc_available)
$this->memcache = false;
}
return $this->memcache;
}
/**
* Initialize and get cache object
*
* @param string $name Cache identifier
* @param string $type Cache type ('db', 'apc' or 'memcache')
* @param int $ttl Expiration time for cache items in seconds
* @param bool $packed Enables/disables data serialization
*
* @return rcube_cache Cache object
*/
public function get_cache($name, $type='db', $ttl=0, $packed=true)
{
if (!isset($this->caches[$name])) {
$this->caches[$name] = new rcube_cache($type, $_SESSION['user_id'], $name, $ttl, $packed);
}
return $this->caches[$name];
}
/**
* 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'));
// use existing instance
if (isset($this->address_books[$id]) && is_a($this->address_books[$id], 'rcube_addressbook') && (!$writeable || !$this->address_books[$id]->readonly)) {
$contacts = $this->address_books[$id];
}
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 {
$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) {
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, $this->user->ID);
}
}
}
if (!$contacts) {
raise_error(array(
'code' => 600, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Addressbook source ($id) not found!"),
true, true);
}
// add to the 'books' array for shutdown function
if (!isset($this->address_books[$id]))
$this->address_books[$id] = $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') {
if (!isset($this->address_books['0']))
$this->address_books['0'] = new rcube_contacts($this->db, $this->user->ID);
$list['0'] = array(
'id' => '0',
'name' => rcube_label('personaladrbook'),
'groups' => $this->address_books['0']->groups,
'readonly' => $this->address_books['0']->readonly,
'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' => $prop['name'],
'groups' => is_array($prop['groups']),
'readonly' => !$prop['writable'],
'autocomplete' => in_array('sql', $autocomplete)
);
}
$plugin = $this->plugins->exec_hook('addressbooks_list', array('sources' => $list));
$list = $plugin['sources'];
foreach ($list as $idx => $item) {
// register source for shutdown function
if (!is_object($this->address_books[$item['id']]))
$this->address_books[$item['id']] = $item;
// remove from list if not writeable as requested
if ($writeable && $item['readonly'])
unset($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 labels 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->imap->debug_level = $this->config->get('debug_level');
$this->imap->skip_deleted = $this->config->get('skip_deleted');
// enable caching of imap data
$imap_cache = $this->config->get('imap_cache');
$messages_cache = $this->config->get('messages_cache');
// for backward compatybility
if ($imap_cache === null && $messages_cache === null && $this->config->get('enable_caching')) {
$imap_cache = 'db';
$messages_cache = true;
}
if ($imap_cache)
$this->imap->set_caching($imap_cache);
if ($messages_cache)
$this->imap->set_messages_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 $this->imap->conn;
}
}
return false;
}
/**
* Create session object and start the session.
*/
public function session_init()
{
// session started (Installer?)
if (session_id())
return;
// set session domain
if ($domain = $this->config->get('session_domain')) {
ini_set('session.cookie_domain', $domain);
}
// set session garbage collecting time according to session_lifetime
$lifetime = $this->config->get('session_lifetime', 0) * 60;
if ($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(), $this->config);
$this->session->register_gc_handler('rcmail_temp_gc');
if ($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 (!$_SESSION['user_id'])
$_SESSION['temp'] = true;
}
/**
* Configure session object internals
*/
public function session_configure()
{
if (!$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);
}
$this->session->set_secret($this->config->get('des_key') . $_SERVER['HTTP_USER_AGENT']);
$this->session->set_ip_check($this->config->get('ip_check'));
}
/**
* 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 : $config['default_port'];
/* Modify username with domain if required
Inspired by Marco <P0L0_notspam_binware.org>
*/
// Check if we need to add domain
if (!empty($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], $host);
else if (is_string($config['username_domain']))
$username .= '@'.rcube_parse_host($config['username_domain'], $host);
}
// Convert username to lowercase. If IMAP backend
// is case-insensitive we need to store always the same username (#1487113)
if ($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
$host = rcube_idn_to_ascii($host);
if (strpos($username, '@')) {
// lowercase domain name
list($local, $domain) = explode('@', $username);
$username = $local . '@' . mb_strtolower($domain);
$username = rcube_idn_to_ascii($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)) {
// fix some old settings according to namespace prefix
$this->fix_namespace_settings($user);
// create default folders on first login
if (!$user->data['last_login'] && $config['create_default_folders'])
$this->imap->create_default_folders();
// update last login timestamp
$user->touch();
}
// create new system user
else if ($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);
$this->session_configure();
// 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', true);
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'] ? $attrib['name'] : '';
// attrib contain text values: use them from now
if (($setval = $attrib[strtolower($_SESSION['language'])]) || ($setval = $attrib['en_us']))
$this->texts[$name] = $setval;
// check for text with domain
if ($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 $text;
}
/**
* Check if the given text lable exists
*
* @param string Label name
* @return boolean True if text exists (either in the current language or in en_US)
*/
public function text_exists($name, $domain=null)
{
// load localization files if not done yet
if (empty($this->texts))
$this->load_language();
// check for text with domain first
return ($domain && isset($this->texts[$domain.'.'.$name])) || isset($this->texts[$name]);
}
/**
* Load a localization package
*
* @param string Language ID
*/
public function load_language($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;
}
/**
* Destroy session data and remove cookie
*/
public function kill_session()
{
$this->plugins->exec_hook('session_destroy');
$this->session->kill();
$_SESSION = array('language' => $this->user->language, 'temp' => true);
$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->session->check_auth())
return;
$this->imap_connect();
}
if ($config['logout_purge'] && !empty($config['trash_mbox'])) {
$this->imap->clear_mailbox($config['trash_mbox']);
}
if ($config['logout_expunge']) {
$this->imap->expunge('INBOX');
}
// Try to save unsaved user preferences
if (!empty($_SESSION['preferences'])) {
$this->user->save_prefs(unserialize($_SESSION['preferences']));
}
}
/**
* Function to be executed in script shutdown
* Registered with register_shutdown_function()
*/
public function shutdown()
{
foreach ($this->shutdown_functions as $function)
call_user_func($function);
if (is_object($this->smtp))
$this->smtp->disconnect();
foreach ($this->address_books as $book) {
if (is_a($book, 'rcube_addressbook'))
$book->close();
}
foreach ($this->caches as $cache) {
if (is_object($cache))
$cache->close();
}
if (is_object($this->imap))
$this->imap->close();
// before closing the database connection, write session data
if ($_SERVER['REMOTE_ADDR'] && is_object($this->session)) {
$this->session->cleanup();
session_write_close();
}
// write performance stats to logs/console
if ($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);
}
}
/**
* Registers shutdown function to be executed on shutdown.
* The functions will be executed before destroying any
* objects like smtp, imap, session, etc.
*
* @param callback Function callback
*/
public function add_shutdown_function($function)
{
$this->shutdown_functions[] = $function;
}
/**
* Generate a unique token to be used in a form request
*
* @return string The request token
*/
public function get_request_token()
{
$sess_id = $_COOKIE[ini_get('session.name')];
if (!$sess_id) $sess_id = session_id();
$plugin = $this->plugins->exec_hook('request_token', array('value' => md5('RT' . $this->task . $this->config->get('des_key') . $sess_id)));
return $plugin['value'];
}
/**
* Check if the current request contains a valid token
*
* @param int Request method
* @return boolean True if request token is valid false if not
*/
public function check_request($mode = RCUBE_INPUT_POST)
{
$token = get_input_value('_token', $mode);
$sess_id = $_COOKIE[ini_get('session.name')];
return !empty($sess_id) && $token == $this->get_request_token();
}
/**
* Create unique authorization hash
*
* @param string Session ID
* @param int Timestamp
* @return string The generated auth hash
*/
private function get_auth_hash($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 '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 '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 => $val) {
if ($val !== '') {
$par = $key[0] == '_' ? $key : '_'.$key;
$url .= $delm.urlencode($par).'='.urlencode($val);
$delm = '&';
}
}
return $url;
}
/**
* Use imagemagick or GD lib to read image properties
*
* @param string Absolute file path
* @return mixed Hash array with image props like type, width, height or False on error
*/
public static function imageprops($filepath)
{
$rcmail = rcmail::get_instance();
if ($cmd = $rcmail->config->get('im_identify_path', false)) {
list(, $type, $size) = explode(' ', strtolower(rcmail::exec($cmd. ' 2>/dev/null {in}', array('in' => $filepath))));
if ($size)
list($width, $height) = explode('x', $size);
}
else if (function_exists('getimagesize')) {
$imsize = @getimagesize($filepath);
$width = $imsize[0];
$height = $imsize[1];
$type = preg_replace('!image/!', '', $imsize['mime']);
}
return $type ? array('type' => $type, 'width' => $width, 'height' => $height) : false;
}
/**
* Convert an image to a given size and type using imagemagick (ensures input is an image)
*
* @param $p['in'] Input filename (mandatory)
* @param $p['out'] Output filename (mandatory)
* @param $p['size'] Width x height of resulting image, e.g. "160x60"
* @param $p['type'] Output file type, e.g. "jpg"
* @param $p['-opts'] Custom command line options to ImageMagick convert
* @return Success of convert as true/false
*/
public static function imageconvert($p)
{
$result = false;
$rcmail = rcmail::get_instance();
$convert = $rcmail->config->get('im_convert_path', false);
$identify = $rcmail->config->get('im_identify_path', false);
// imagemagick is required for this
if (!$convert)
return false;
if (!(($imagetype = @exif_imagetype($p['in'])) && ($type = image_type_to_extension($imagetype, false))))
list(, $type) = explode(' ', strtolower(rcmail::exec($identify . ' 2>/dev/null {in}', $p))); # for things like eps
$type = strtr($type, array("jpeg" => "jpg", "tiff" => "tif", "ps" => "eps", "ept" => "eps"));
$p += array('type' => $type, 'types' => "bmp,eps,gif,jp2,jpg,png,svg,tif", 'quality' => 75);
$p['-opts'] = array('-resize' => $p['size'].'>') + (array)$p['-opts'];
if (in_array($type, explode(',', $p['types']))) # Valid type?
$result = rcmail::exec($convert . ' 2>&1 -flatten -auto-orient -colorspace RGB -quality {quality} {-opts} {in} {type}:{out}', $p) === "";
return $result;
}
/**
* Construct shell command, execute it and return output as string.
* Keywords {keyword} are replaced with arguments
*
* @param $cmd Format string with {keywords} to be replaced
* @param $values (zero, one or more arrays can be passed)
* @return output of command. shell errors not detectable
*/
public static function exec(/* $cmd, $values1 = array(), ... */)
{
$args = func_get_args();
$cmd = array_shift($args);
$values = $replacements = array();
// merge values into one array
foreach ($args as $arg)
$values += (array)$arg;
preg_match_all('/({(-?)([a-z]\w*)})/', $cmd, $matches, PREG_SET_ORDER);
foreach ($matches as $tags) {
list(, $tag, $option, $key) = $tags;
$parts = array();
if ($option) {
foreach ((array)$values["-$key"] as $key => $value) {
if ($value === true || $value === false || $value === null)
$parts[] = $value ? $key : "";
else foreach ((array)$value as $val)
$parts[] = "$key " . escapeshellarg($val);
}
}
else {
foreach ((array)$values[$key] as $value)
$parts[] = escapeshellarg($value);
}
$replacements[$tag] = join(" ", $parts);
}
// use strtr behaviour of going through source string once
$cmd = strtr($cmd, $replacements);
return (string)shell_exec($cmd);
}
/**
* 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);
}
/**
* Registers action aliases for current task
*
* @param array $map Alias-to-filename hash array
*/
public function register_action_map($map)
{
if (is_array($map)) {
foreach ($map as $idx => $val) {
$this->action_map[$idx] = $val;
}
}
}
/**
* Returns current action filename
*
* @param array $map Alias-to-filename hash array
*/
public function get_action_file()
{
if (!empty($this->action_map[$this->action])) {
return $this->action_map[$this->action];
}
return strtr($this->action, '-', '_') . '.inc';
}
/**
* Fixes some user preferences according to namespace handling change.
* Old Roundcube versions were using folder names with removed namespace prefix.
* Now we need to add the prefix on servers where personal namespace has prefix.
*
* @param rcube_user $user User object
*/
private function fix_namespace_settings($user)
{
$prefix = $this->imap->get_namespace('prefix');
$prefix_len = strlen($prefix);
if (!$prefix_len)
return;
$prefs = $user->get_prefs();
if (empty($prefs) || $prefs['namespace_fixed'])
return;
// Build namespace prefix regexp
$ns = $this->imap->get_namespace();
$regexp = array();
foreach ($ns as $entry) {
if (!empty($entry)) {
foreach ($entry as $item) {
if (strlen($item[0])) {
$regexp[] = preg_quote($item[0], '/');
}
}
}
}
$regexp = '/^('. implode('|', $regexp).')/';
// Fix preferences
$opts = array('drafts_mbox', 'junk_mbox', 'sent_mbox', 'trash_mbox', 'archive_mbox');
foreach ($opts as $opt) {
if ($value = $prefs[$opt]) {
if ($value != 'INBOX' && !preg_match($regexp, $value)) {
$prefs[$opt] = $prefix.$value;
}
}
}
if (!empty($prefs['default_imap_folders'])) {
foreach ($prefs['default_imap_folders'] as $idx => $name) {
if ($name != 'INBOX' && !preg_match($regexp, $name)) {
$prefs['default_imap_folders'][$idx] = $prefix.$name;
}
}
}
if (!empty($prefs['search_mods'])) {
$folders = array();
foreach ($prefs['search_mods'] as $idx => $value) {
if ($idx != 'INBOX' && $idx != '*' && !preg_match($regexp, $idx)) {
$idx = $prefix.$idx;
}
$folders[$idx] = $value;
}
$prefs['search_mods'] = $folders;
}
if (!empty($prefs['message_threading'])) {
$folders = array();
foreach ($prefs['message_threading'] as $idx => $value) {
if ($idx != 'INBOX' && !preg_match($regexp, $idx)) {
$idx = $prefix.$idx;
}
$folders[$prefix.$idx] = $value;
}
$prefs['message_threading'] = $folders;
}
if (!empty($prefs['collapsed_folders'])) {
$folders = explode('&&', $prefs['collapsed_folders']);
$count = count($folders);
$folders_str = '';
if ($count) {
$folders[0] = substr($folders[0], 1);
$folders[$count-1] = substr($folders[$count-1], 0, -1);
}
foreach ($folders as $value) {
if ($value != 'INBOX' && !preg_match($regexp, $value)) {
$value = $prefix.$value;
}
$folders_str .= '&'.$value.'&';
}
$prefs['collapsed_folders'] = $folders_str;
}
$prefs['namespace_fixed'] = true;
// save updated preferences and reset imap settings (default folders)
$user->save_prefs($prefs);
$this->set_imap_prop();
}
}