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diff --git a/program/lib/Roundcube/rcube.php b/program/lib/Roundcube/rcube.php
index 33d0bb051..d3f308626 100644
--- a/program/lib/Roundcube/rcube.php
+++ b/program/lib/Roundcube/rcube.php
@@ -1,1846 +1,1846 @@
<?php
/**
+-----------------------------------------------------------------------+
| This file is part of the Roundcube Webmail client |
| |
| Copyright (C) The Roundcube Dev Team |
| Copyright (C) Kolab Systems AG |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
| |
| PURPOSE: |
| Framework base class providing core functions and holding |
| instances of all 'global' objects like db- and storage-connections |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
*/
/**
* Base class of the Roundcube Framework
* implemented as singleton
*
* @package Framework
* @subpackage Core
*/
class rcube
{
// Init options
const INIT_WITH_DB = 1;
const INIT_WITH_PLUGINS = 2;
// Request status
const REQUEST_VALID = 0;
const REQUEST_ERROR_URL = 1;
const REQUEST_ERROR_TOKEN = 2;
const DEBUG_LINE_LENGTH = 4096;
/** @var rcube_config Stores instance of rcube_config */
public $config;
/** @var rcube_db Instance of database class */
public $db;
/** @var Memcache Instance of Memcache class */
public $memcache;
/** @var Memcached Instance of Memcached class */
public $memcached;
/** @var Redis Instance of Redis class */
public $redis;
/** @var rcube_session Instance of rcube_session class */
public $session;
/** @var rcube_smtp Instance of rcube_smtp class */
public $smtp;
/** @var rcube_storage Instance of rcube_storage class */
public $storage;
/** @var rcube_output Instance of rcube_output class */
public $output;
/** @var rcube_plugin_api Instance of rcube_plugin_api */
public $plugins;
/** @var rcube_user Instance of rcube_user class */
public $user;
/** @var int Request status */
public $request_status = 0;
/** @var array Localization */
protected $texts;
/** @var rcube_cache[] Initialized cache objects */
protected $caches = [];
/** @var array Registered shutdown functions */
protected $shutdown_functions = [];
/** @var rcube Singleton instance of rcube */
static protected $instance;
/**
* This implements the 'singleton' design pattern
*
* @param int $mode Options to initialize with this instance. See rcube::INIT_WITH_* constants
* @param string $env Environment name to run (e.g. live, dev, test)
*
* @return rcube The one and only instance
*/
static function get_instance($mode = 0, $env = '')
{
if (!self::$instance) {
self::$instance = new rcube($env);
self::$instance->init($mode);
}
return self::$instance;
}
/**
* Private constructor
*
* @param string $env Environment name to run (e.g. live, dev, test)
*/
protected function __construct($env = '')
{
// load configuration
$this->config = new rcube_config($env);
$this->plugins = new rcube_dummy_plugin_api;
register_shutdown_function([$this, 'shutdown']);
}
/**
* Initial startup function
*
* @param int $mode Options to initialize with this instance. See rcube::INIT_WITH_* constants
*/
protected function init($mode = 0)
{
// 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, $syslog_facility);
}
// connect to database
if ($mode & self::INIT_WITH_DB) {
$this->get_dbh();
}
// create plugin API and load plugins
if ($mode & self::INIT_WITH_PLUGINS) {
$this->plugins = rcube_plugin_api::get_instance();
}
}
/**
* Get the current database connection
*
* @return rcube_db Database object
*/
public function get_dbh()
{
if (!$this->db) {
$this->db = rcube_db::factory(
$this->config->get('db_dsnw'),
$this->config->get('db_dsnr'),
$this->config->get('db_persistent')
);
$this->db->set_debug((bool)$this->config->get('sql_debug'));
}
return $this->db;
}
/**
* Get global handle for memcache access
*
* @return Memcache The memcache engine
*/
public function get_memcache()
{
if (!isset($this->memcache)) {
$this->memcache = rcube_cache_memcache::engine();
}
return $this->memcache;
}
/**
* Get global handle for memcached access
*
* @return Memcached The memcached engine
*/
public function get_memcached()
{
if (!isset($this->memcached)) {
$this->memcached = rcube_cache_memcached::engine();
}
return $this->memcached;
}
/**
* Get global handle for redis access
*
* @return Redis The redis engine
*/
public function get_redis()
{
if (!isset($this->redis)) {
$this->redis = rcube_cache_redis::engine();
}
return $this->redis;
}
/**
* Initialize and get user cache object
*
* @param string $name Cache identifier
* @param string $type Cache type ('db', 'apc', 'memcache', 'redis')
* @param string $ttl Expiration time for cache items
* @param bool $packed Enables/disables data serialization
* @param bool $indexed Use indexed cache
*
* @return rcube_cache|null User cache object
*/
public function get_cache($name, $type = 'db', $ttl = 0, $packed = true, $indexed = false)
{
if (!isset($this->caches[$name]) && ($userid = $this->get_user_id())) {
$this->caches[$name] = rcube_cache::factory($type, $userid, $name, $ttl, $packed, $indexed);
}
return $this->caches[$name] ?? null;
}
/**
* Initialize and get shared cache object
*
* @param string $name Cache identifier
* @param bool $packed Enables/disables data serialization
*
* @return rcube_cache Shared cache object
*/
public function get_cache_shared($name, $packed = true)
{
$shared_name = "shared_$name";
if (!array_key_exists($shared_name, $this->caches)) {
$opt = strtolower($name) . '_cache';
$type = $this->config->get($opt);
$ttl = $this->config->get($opt . '_ttl');
if (!$type) {
// cache is disabled
return $this->caches[$shared_name] = null;
}
if ($ttl === null) {
$ttl = $this->config->get('shared_cache_ttl', '10d');
}
$this->caches[$shared_name] = rcube_cache::factory($type, null, $name, $ttl, $packed);
}
return $this->caches[$shared_name];
}
/**
* Initialize HTTP client
*
* @param array $options Configuration options
*
* @return \GuzzleHttp\Client HTTP client
*/
public function get_http_client($options = [])
{
return new \GuzzleHttp\Client($options + $this->config->get('http_client'));
}
/**
* Create SMTP object and connect to server
*
* @param boolean $connect True if connection should be established
*/
public function smtp_init($connect = false)
{
$this->smtp = new rcube_smtp();
if ($connect) {
$this->smtp->connect();
}
}
/**
* Initialize and get storage object
*
* @return rcube_storage Storage object
*/
public function get_storage()
{
// already initialized
if (!is_object($this->storage)) {
$this->storage_init();
}
return $this->storage;
}
/**
* Initialize storage object
*/
public function storage_init()
{
// already initialized
if (is_object($this->storage)) {
return;
}
$driver = $this->config->get('storage_driver', 'imap');
$driver_class = "rcube_{$driver}";
if (!class_exists($driver_class)) {
self::raise_error([
'code' => 700, 'file' => __FILE__, 'line' => __LINE__,
'message' => "Storage driver class ($driver) not found!"
],
true, true
);
}
// Initialize storage object
$this->storage = new $driver_class;
// for backward compat. (deprecated, will be removed)
$this->imap = $this->storage;
// set class options
$options = [
'auth_type' => $this->config->get("{$driver}_auth_type", 'check'),
'auth_cid' => $this->config->get("{$driver}_auth_cid"),
'auth_pw' => $this->config->get("{$driver}_auth_pw"),
'debug' => (bool) $this->config->get("{$driver}_debug"),
'force_caps' => (bool) $this->config->get("{$driver}_force_caps"),
'disabled_caps' => $this->config->get("{$driver}_disabled_caps"),
'socket_options' => $this->config->get("{$driver}_conn_options"),
'timeout' => (int) $this->config->get("{$driver}_timeout"),
'skip_deleted' => (bool) $this->config->get('skip_deleted'),
'driver' => $driver,
];
if (!empty($_SESSION['storage_host'])) {
$options['language'] = $_SESSION['language'];
$options['host'] = $_SESSION['storage_host'];
$options['user'] = $_SESSION['username'];
$options['port'] = $_SESSION['storage_port'];
$options['ssl'] = $_SESSION['storage_ssl'];
$options['password'] = $this->decrypt($_SESSION['password']);
$_SESSION[$driver.'_host'] = $_SESSION['storage_host'];
}
$options = $this->plugins->exec_hook("storage_init", $options);
// for backward compat. (deprecated, to be removed)
$options = $this->plugins->exec_hook("imap_init", $options);
$this->storage->set_options($options);
$this->set_storage_prop();
// subscribe to 'storage_connected' hook for session logging
if ($this->config->get('imap_log_session', false)) {
$this->plugins->register_hook('storage_connected', [$this, 'storage_log_session']);
}
}
/**
* Set storage parameters.
*/
protected function set_storage_prop()
{
$storage = $this->get_storage();
// set pagesize from config
$pagesize = $this->config->get('mail_pagesize');
if (!$pagesize) {
$pagesize = $this->config->get('pagesize', 50);
}
$storage->set_pagesize($pagesize);
$storage->set_charset($this->config->get('default_charset', RCUBE_CHARSET));
// enable caching of mail data
$driver = $this->config->get('storage_driver', 'imap');
$storage_cache = $this->config->get("{$driver}_cache");
$messages_cache = $this->config->get('messages_cache');
// for backward compatibility
if ($storage_cache === null && $messages_cache === null && $this->config->get('enable_caching')) {
$storage_cache = 'db';
$messages_cache = true;
}
if ($storage_cache) {
$storage->set_caching($storage_cache);
}
if ($messages_cache) {
$storage->set_messages_caching(true);
}
}
/**
* Set special folders type association.
* This must be done AFTER connecting to the server!
*/
protected function set_special_folders()
{
$storage = $this->get_storage();
$folders = $storage->get_special_folders(true);
$prefs = [];
// check SPECIAL-USE flags on IMAP folders
foreach ($folders as $type => $folder) {
$idx = $type . '_mbox';
if ($folder !== $this->config->get($idx)) {
$prefs[$idx] = $folder;
}
}
// Some special folders differ, update user preferences
if (!empty($prefs) && $this->user) {
$this->user->save_prefs($prefs);
}
// create default folders (on login)
if ($this->config->get('create_default_folders')) {
$storage->create_default_folders();
}
}
/**
* Callback for IMAP connection events to log session identifiers
*
* @param array $args Callback arguments
*/
public function storage_log_session($args)
{
if (!empty($args['session']) && session_id()) {
$this->write_log('imap_session', $args['session']);
}
}
/**
* Create session object and start the session.
*/
public function session_init()
{
// Ignore in CLI mode or when session started (Installer?)
if (empty($_SERVER['REMOTE_ADDR']) || session_id()) {
return;
}
$storage = $this->config->get('session_storage', 'db');
$sess_name = $this->config->get('session_name');
$sess_domain = $this->config->get('session_domain');
$sess_path = $this->config->get('session_path');
$sess_samesite = $this->config->get('session_samesite');
$lifetime = $this->config->get('session_lifetime', 0) * 60;
$is_secure = $this->config->get('use_https') || rcube_utils::https_check();
// set session domain
if ($sess_domain) {
ini_set('session.cookie_domain', $sess_domain);
}
// set session path
if ($sess_path) {
ini_set('session.cookie_path', $sess_path);
}
// set session samesite attribute
// requires PHP >= 7.3.0, see https://wiki.php.net/rfc/same-site-cookie for more info
if (version_compare(PHP_VERSION, '7.3.0', '>=') && $sess_samesite) {
ini_set('session.cookie_samesite', $sess_samesite);
}
// set session garbage collecting time according to session_lifetime
if ($lifetime) {
ini_set('session.gc_maxlifetime', $lifetime * 2);
}
// set session cookie lifetime so it never expires (#5961)
ini_set('session.cookie_lifetime', 0);
ini_set('session.cookie_secure', $is_secure);
ini_set('session.name', $sess_name ?: 'roundcube_sessid');
ini_set('session.use_cookies', 1);
ini_set('session.use_only_cookies', 1);
ini_set('session.cookie_httponly', 1);
// Make sure session garbage collector is enabled when using custom handlers (#6560)
// Note: Use session.gc_divisor to control accuracy
if ($storage != 'php' && !ini_get('session.gc_probability')) {
ini_set('session.gc_probability', 1);
}
// Start the session
$this->session = rcube_session::factory($this->config);
$this->session->register_gc_handler([$this, 'gc']);
$this->session->start();
}
/**
* Garbage collector - cache/temp cleaner
*/
public function gc()
{
rcube_cache::gc();
$this->get_storage()->cache_gc();
$this->gc_temp();
}
/**
* Garbage collector function for temp files.
* Removes temporary files older than temp_dir_ttl.
*/
public function gc_temp()
{
$tmp = unslashify($this->config->get('temp_dir'));
// expire in 48 hours by default
$temp_dir_ttl = $this->config->get('temp_dir_ttl', '48h');
$temp_dir_ttl = get_offset_sec($temp_dir_ttl);
if ($temp_dir_ttl < 6*3600) {
$temp_dir_ttl = 6*3600; // 6 hours sensible lower bound.
}
$expire = time() - $temp_dir_ttl;
if ($tmp && ($dir = opendir($tmp))) {
while (($fname = readdir($dir)) !== false) {
if (strpos($fname, RCUBE_TEMP_FILE_PREFIX) !== 0) {
continue;
}
if (@filemtime("$tmp/$fname") < $expire) {
@unlink("$tmp/$fname");
}
}
closedir($dir);
}
}
/**
* Runs garbage collector with probability based on
* session settings. This is intended for environments
* without a session.
*/
public function gc_run()
{
$probability = (int) ini_get('session.gc_probability');
$divisor = (int) ini_get('session.gc_divisor');
if ($divisor > 0 && $probability > 0) {
$random = mt_rand(1, $divisor);
if ($random <= $probability) {
$this->gc();
}
}
}
/**
* Get localized text in the desired language
*
* @param mixed $attrib Named parameters array or label name
* @param string $domain Label domain (plugin) name
*
* @return string Localized text
*/
public function gettext($attrib, $domain = null)
{
// load localization files if not done yet
if (empty($this->texts)) {
$this->load_language();
}
// extract attributes
if (is_string($attrib)) {
$attrib = ['name' => $attrib];
}
$name = (string) $attrib['name'];
// attrib contain text values: use them from now
$slang = !empty($_SESSION['language']) ? strtolower($_SESSION['language']) : 'en_us';
if (isset($attrib[$slang])) {
$this->texts[$name] = $attrib[$slang];
}
else if ($slang != 'en_us' && isset($attrib['en_us'])) {
$this->texts[$name] = $attrib['en_us'];
}
// check for text with domain
if ($domain && isset($this->texts["$domain.$name"])) {
$text = $this->texts["$domain.$name"];
}
else if (isset($this->texts[$name])) {
$text = $this->texts[$name];
}
// text does not exist
if (!isset($text)) {
return "[$name]";
}
// replace vars in text
if (!empty($attrib['vars']) && is_array($attrib['vars'])) {
foreach ($attrib['vars'] as $var_key => $var_value) {
$text = str_replace($var_key[0] != '$' ? '$'.$var_key : $var_key, $var_value, $text);
}
}
// replace \n with real line break
$text = strtr($text, ['\n' => "\n"]);
// case folding
if ((!empty($attrib['uppercase']) && strtolower($attrib['uppercase']) == 'first') || !empty($attrib['ucfirst'])) {
$case_mode = MB_CASE_TITLE;
}
else if (!empty($attrib['uppercase'])) {
$case_mode = MB_CASE_UPPER;
}
else if (!empty($attrib['lowercase'])) {
$case_mode = MB_CASE_LOWER;
}
if (isset($case_mode)) {
$text = mb_convert_case($text, $case_mode);
}
return $text;
}
/**
* Check if the given text label exists
*
* @param string $name Label name
* @param string $domain Label domain (plugin) name or '*' for all domains
* @param string &$ref_domain Sets domain name if label is found
*
* @return bool True if text exists (either in the current language or in en_US)
*/
public function text_exists($name, $domain = null, &$ref_domain = null)
{
// load localization files if not done yet
if (empty($this->texts)) {
$this->load_language();
}
if (isset($this->texts[$name])) {
$ref_domain = '';
return true;
}
// any of loaded domains (plugins)
if ($domain == '*') {
foreach ($this->plugins->loaded_plugins() as $domain) {
if (isset($this->texts[$domain.'.'.$name])) {
$ref_domain = $domain;
return true;
}
}
}
// specified domain
else if ($domain && isset($this->texts[$domain.'.'.$name])) {
$ref_domain = $domain;
return true;
}
return false;
}
/**
* Load a localization package
*
* @param string $lang Language ID
* @param array $add Additional text labels/messages
* @param array $merge Additional text labels/messages to merge
*/
public function load_language($lang = null, $add = [], $merge = [])
{
$sess_lang = !empty($_SESSION['language']) ? $_SESSION['language'] : 'en_US';
$lang = $this->language_prop($lang ?: $sess_lang);
// load localized texts
if (empty($this->texts) || $lang != $sess_lang) {
// get english labels (these should be complete)
$files = [
RCUBE_LOCALIZATION_DIR . 'en_US/labels.inc',
RCUBE_LOCALIZATION_DIR . 'en_US/messages.inc',
];
// include user language files
if ($lang != 'en' && $lang != 'en_US' && is_dir(RCUBE_LOCALIZATION_DIR . $lang)) {
$files[] = RCUBE_LOCALIZATION_DIR . $lang . '/labels.inc';
$files[] = RCUBE_LOCALIZATION_DIR . $lang . '/messages.inc';
}
$this->texts = [];
foreach ($files as $file) {
$this->texts = self::read_localization_file($file, $this->texts);
}
$_SESSION['language'] = $lang;
}
// append additional texts (from plugin)
if (is_array($add) && !empty($add)) {
$this->texts += $add;
}
// merge additional texts (from plugin)
if (is_array($merge) && !empty($merge)) {
$this->texts = array_merge($this->texts, $merge);
}
}
/**
* Read localized texts from an additional location (plugins, skins).
* Then you can use the result as 2nd arg to load_language().
*
* @param string $dir Directory to search in
* @param string|null $lang Language code to read
*
* @return array Localization labels/messages
*/
public function read_localization($dir, $lang = null)
{
if ($lang == null && isset($_SESSION)) {
$lang = $_SESSION['language'] ?? null;
}
$langs = array_unique(['en_US', $lang]);
$locdir = slashify($dir);
$texts = [];
// Language aliases used to find localization in similar lang, see below
$aliases = [
'de_CH' => 'de_DE',
'es_AR' => 'es_ES',
'fa_AF' => 'fa_IR',
'nl_BE' => 'nl_NL',
'pt_BR' => 'pt_PT',
'zh_CN' => 'zh_TW',
];
foreach ($langs as $lng) {
$fpath = $locdir . $lng . '.inc';
$_texts = self::read_localization_file($fpath);
if (!empty($_texts)) {
$texts = array_merge($texts, $_texts);
}
// Fallback to a localization in similar language (#1488401)
else if ($lng != 'en_US') {
$alias = null;
if (!empty($aliases[$lng])) {
$alias = $aliases[$lng];
}
else if ($key = array_search($lng, $aliases)) {
$alias = $key;
}
if (!empty($alias)) {
$fpath = $locdir . $alias . '.inc';
$texts = self::read_localization_file($fpath, $texts);
}
}
}
return $texts;
}
/**
* Load localization file
*
* @param string $file File location
* @param array $texts Additional texts to merge with
*
* @return array Localization labels/messages
*/
public static function read_localization_file($file, $texts = [])
{
if (is_file($file) && is_readable($file)) {
$labels = [];
$messages = [];
// use buffering to handle empty lines/spaces after closing PHP tag
ob_start();
include $file;
ob_end_clean();
if (!empty($labels)) {
$texts = array_merge($texts, $labels);
}
if (!empty($messages)) {
$texts = array_merge($texts, $messages);
}
}
return $texts;
}
/**
* Check the given string and return a valid language code
*
* @param string $lang Language code
*
* @return string Valid language code
*/
protected function language_prop($lang)
{
static $rcube_languages, $rcube_language_aliases;
// user HTTP_ACCEPT_LANGUAGE if no language is specified
if ((empty($lang) || $lang == 'auto') && !empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
$accept_langs = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
$lang = $accept_langs[0];
if (preg_match('/^([a-z]+)[_-]([a-z]+)$/i', $lang, $m)) {
$lang = $m[1] . '_' . strtoupper($m[2]);
}
}
if (empty($rcube_languages)) {
@include(RCUBE_LOCALIZATION_DIR . 'index.inc');
}
// check if we have an alias for that language
if (!isset($rcube_languages[$lang]) && isset($rcube_language_aliases[$lang])) {
$lang = $rcube_language_aliases[$lang];
}
// try the first two chars
else if ($lang && !isset($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(RCUBE_LOCALIZATION_DIR . $lang)) {
$lang = 'en_US';
}
return $lang;
}
/**
* Read directory program/localization and return a list of available languages
*
* @return array List of available localizations
*/
public function list_languages()
{
static $sa_languages = [];
if (!count($sa_languages)) {
@include(RCUBE_LOCALIZATION_DIR . 'index.inc');
if ($dh = @opendir(RCUBE_LOCALIZATION_DIR)) {
while (($name = readdir($dh)) !== false) {
if ($name[0] == '.' || !is_dir(RCUBE_LOCALIZATION_DIR . $name)) {
continue;
}
if (isset($rcube_languages[$name])) {
$sa_languages[$name] = $rcube_languages[$name];
}
}
closedir($dh);
}
}
return $sa_languages;
}
/**
* Encrypt a string
*
* @param string $clear Clear text input
* @param string $key Encryption key to retrieve from the configuration, defaults to 'des_key'
* @param bool $base64 Whether or not to base64_encode() the result before returning
*
* @return string|false Encrypted text, false on error
*/
public function encrypt($clear, $key = 'des_key', $base64 = true)
{
if (!is_string($clear) || !strlen($clear)) {
return '';
}
$ckey = $this->config->get_crypto_key($key);
$method = $this->config->get_crypto_method();
$opts = defined('OPENSSL_RAW_DATA') ? OPENSSL_RAW_DATA : true;
$iv = rcube_utils::random_bytes(openssl_cipher_iv_length($method), true);
$cipher = openssl_encrypt($clear, $method, $ckey, $opts, $iv);
if ($cipher === false) {
self::raise_error([
'file' => __FILE__,
'line' => __LINE__,
'message' => "Failed to encrypt data with configured cipher method: $method!"
], true, false);
return false;
}
$cipher = $iv . $cipher;
return $base64 ? base64_encode($cipher) : $cipher;
}
/**
* Decrypt a string
*
* @param string $cipher Encrypted text
* @param string $key Encryption key to retrieve from the configuration, defaults to 'des_key'
* @param bool $base64 Whether or not input is base64-encoded
*
* @return string|false Decrypted text, false on error
*/
public function decrypt($cipher, $key = 'des_key', $base64 = true)
{
if (strlen($cipher) == 0) {
return false;
}
if ($base64) {
$cipher = base64_decode($cipher);
if ($cipher === false) {
return false;
}
}
$ckey = $this->config->get_crypto_key($key);
$method = $this->config->get_crypto_method();
$opts = defined('OPENSSL_RAW_DATA') ? OPENSSL_RAW_DATA : true;
$iv_size = openssl_cipher_iv_length($method);
$iv = substr($cipher, 0, $iv_size);
// session corruption? (#1485970)
if (strlen($iv) < $iv_size) {
return false;
}
$cipher = substr($cipher, $iv_size);
$clear = openssl_decrypt($cipher, $method, $ckey, $opts, $iv);
return $clear;
}
/**
* Returns session token for secure URLs
*
* @param bool $generate Generate token if not exists in session yet
*
* @return string|bool Token string, False when disabled
*/
public function get_secure_url_token($generate = false)
{
if ($len = $this->config->get('use_secure_urls')) {
if (empty($_SESSION['secure_token'] ?? null) && $generate) {
// generate x characters long token
$length = $len > 1 ? $len : 16;
$token = rcube_utils::random_bytes($length);
$plugin = $this->plugins->exec_hook('secure_token', ['value' => $token, 'length' => $length]);
$_SESSION['secure_token'] = $plugin['value'];
}
return $_SESSION['secure_token'] ?? false;
}
return false;
}
/**
* Generate a unique token to be used in a form request
*
* @return string The request token
*/
public function get_request_token()
{
if (empty($_SESSION['request_token'])) {
$plugin = $this->plugins->exec_hook('request_token', ['value' => rcube_utils::random_bytes(32)]);
$_SESSION['request_token'] = $plugin['value'];
}
return $_SESSION['request_token'];
}
/**
* Check if the current request contains a valid token.
* Empty requests aren't checked until use_secure_urls is set.
*
* @param int $mode Request method
*
* @return bool True if request token is valid false if not
*/
public function check_request($mode = rcube_utils::INPUT_POST)
{
// check secure token in URL if enabled
if ($token = $this->get_secure_url_token()) {
foreach (explode('/', preg_replace('/[?#&].*$/', '', $_SERVER['REQUEST_URI'])) as $tok) {
if ($tok == $token) {
return true;
}
}
$this->request_status = self::REQUEST_ERROR_URL;
return false;
}
$sess_tok = $this->get_request_token();
// ajax requests
if (rcube_utils::request_header('X-Roundcube-Request') === $sess_tok) {
return true;
}
// skip empty requests
if (($mode == rcube_utils::INPUT_POST && empty($_POST))
|| ($mode == rcube_utils::INPUT_GET && empty($_GET))
) {
return true;
}
// default method of securing requests
$token = rcube_utils::get_input_value('_token', $mode);
if (empty($_COOKIE[ini_get('session.name')]) || $token !== $sess_tok) {
$this->request_status = self::REQUEST_ERROR_TOKEN;
return false;
}
return true;
}
/**
* Build a valid URL to this instance of Roundcube
*
* @param mixed $p Either a string with the action or url parameters as key-value pairs
*
* @return string Valid application URL
*/
public function url($p)
{
// STUB: should be overloaded by the application
return '';
}
/**
* 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);
}
// write session data as soon as possible and before
// closing database connection, don't do this before
// registered shutdown functions, they may need the session
// Note: this will run registered gc handlers (ie. cache gc)
if (!empty($_SERVER['REMOTE_ADDR']) && is_object($this->session)) {
$this->session->write_close();
}
if (is_object($this->smtp)) {
$this->smtp->disconnect();
}
foreach ($this->caches as $cache) {
if (is_object($cache)) {
$cache->close();
}
}
if (is_object($this->storage)) {
$this->storage->close();
}
if ($this->config->get('log_driver') == 'syslog') {
closelog();
}
}
/**
* Registers shutdown function to be executed on shutdown.
* The functions will be executed before destroying any
* objects like smtp, imap, session, etc.
*
* @param callback $function Function callback
*/
public function add_shutdown_function($function)
{
$this->shutdown_functions[] = $function;
}
/**
* When you're going to sleep the script execution for a longer time
* it is good to close all external connections (sql, memcache, redis, SMTP, IMAP).
*
* No action is required on wake up, all connections will be
* re-established automatically.
*/
public function sleep()
{
foreach ($this->caches as $cache) {
if (is_object($cache)) {
$cache->close();
}
}
if ($this->storage) {
$this->storage->close();
}
if ($this->db) {
$this->db->closeConnection();
}
if ($this->memcache) {
$this->memcache->close();
}
if ($this->memcached) {
$this->memcached->quit();
}
if ($this->smtp) {
$this->smtp->disconnect();
}
if ($this->redis) {
$this->redis->close();
}
}
/**
* Quote a given string.
* Shortcut function for rcube_utils::rep_specialchars_output()
*
* @param string $str A string to quote
* @param string $mode Replace mode for tags: show|remove|strict
* @param bool $newlines Convert newlines
*
* @return string HTML-quoted string
*/
public static function Q($str, $mode = 'strict', $newlines = true)
{
return rcube_utils::rep_specialchars_output($str, 'html', $mode, $newlines);
}
/**
* Quote a given string for javascript output.
* Shortcut function for rcube_utils::rep_specialchars_output()
*
* @param string $str A string to quote
*
* @return string JS-quoted string
*/
public static function JQ($str)
{
return rcube_utils::rep_specialchars_output($str, 'js');
}
/**
* Quote a given string, remove new-line characters, use strict mode.
* Shortcut function for rcube_utils::rep_specialchars_output()
*
* @param string $str A string to quote
*
* @return string HTML-quoted string
*/
public static function SQ($str)
{
return rcube_utils::rep_specialchars_output($str, 'html', 'strict', false);
}
/**
* Construct shell command, execute it and return output as string.
* Keywords {keyword} are replaced with arguments
*
* @param string $cmd Format string with {keywords} to be replaced
* @param mixed $values,... (zero, one or more arrays can be passed)
*
* @return string Output of command. Shell errors not detectable
*/
public static function exec(/* $cmd, $values1 = [], ... */)
{
$args = func_get_args();
$cmd = array_shift($args);
$values = $replacements = [];
// merge values into one array
foreach ($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;
$parts = [];
if ($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] = implode(' ', $parts);
}
// use strtr behaviour of going through source string once
$cmd = strtr($cmd, $replacements);
return (string) shell_exec($cmd);
}
/**
* Print or write debug messages
*
* @param mixed Debug message or data
*/
public static function console()
{
$args = func_get_args();
if (class_exists('rcube', false)) {
$rcube = self::get_instance();
$plugin = $rcube->plugins->exec_hook('console', ['args' => $args]);
if ($plugin['abort']) {
return;
}
$args = $plugin['args'];
}
$msg = [];
foreach ($args as $arg) {
$msg[] = !is_string($arg) ? var_export($arg, true) : $arg;
}
self::write_log('console', implode(";\n", $msg));
}
/**
* Append a line to a logfile in the logs directory.
* Date will be added automatically to the line.
*
* @param string $name Name of the log file
* @param mixed $line Line to append
*
* @return bool True on success, False on failure
*/
public static function write_log($name, $line)
{
if (!is_string($line)) {
$line = var_export($line, true);
}
$date_format = $log_driver = $session_key = null;
if (self::$instance) {
$date_format = self::$instance->config->get('log_date_format');
$log_driver = self::$instance->config->get('log_driver');
$session_key = intval(self::$instance->config->get('log_session_id', 8));
}
$date = rcube_utils::date_format($date_format);
// trigger logging hook
if (is_object(self::$instance) && is_object(self::$instance->plugins)) {
$log = self::$instance->plugins->exec_hook('write_log',
['name' => $name, 'date' => $date, 'line' => $line]
);
$name = $log['name'];
$line = $log['line'];
$date = $log['date'];
if (!empty($log['abort'])) {
return true;
}
}
// add session ID to the log
if ($session_key > 0 && ($sess = session_id())) {
$line = '<' . substr($sess, 0, $session_key) . '> ' . $line;
}
if ($log_driver == 'syslog') {
$prio = $name == 'errors' ? LOG_ERR : LOG_INFO;
return syslog($prio, $line);
}
// write message with file name when configured to log to STDOUT
if ($log_driver == 'stdout') {
$stdout = "php://stdout";
$line = "$name: $line\n";
return file_put_contents($stdout, $line, FILE_APPEND) !== false;
}
// log_driver == 'file' is assumed here
$line = sprintf("[%s]: %s\n", $date, $line);
// per-user logging is activated
if (self::$instance && self::$instance->config->get('per_user_logging')
&& self::$instance->get_user_id()
&& !in_array($name, ['userlogins', 'sendmail'])
) {
$log_dir = self::$instance->get_user_log_dir();
if (empty($log_dir) && $name !== 'errors') {
return false;
}
}
if (empty($log_dir)) {
if (!empty($log['dir'])) {
$log_dir = $log['dir'];
}
else if (self::$instance) {
$log_dir = self::$instance->config->get('log_dir');
}
}
if (empty($log_dir)) {
$log_dir = RCUBE_INSTALL_PATH . 'logs';
}
if (self::$instance) {
$name .= self::$instance->config->get('log_file_ext', '.log');
}
else {
$name .= '.log';
}
return file_put_contents("$log_dir/$name", $line, FILE_APPEND) !== false;
}
/**
* Throw system error (and show error page).
*
* @param array $arg Named parameters
* - code: Error code (required)
* - type: Error type [php|db|imap|javascript]
* - message: Error message
* - file: File where error occurred
* - line: Line where error occurred
* @param bool $log True to log the error
* @param bool $terminate Terminate script execution
*/
public static function raise_error($arg = [], $log = false, $terminate = false)
{
// handle PHP exceptions
if ($arg instanceof Exception) {
$arg = [
'code' => $arg->getCode(),
'line' => $arg->getLine(),
'file' => $arg->getFile(),
'message' => $arg->getMessage(),
];
}
else if ($arg instanceof PEAR_Error) {
$info = $arg->getUserInfo();
$arg = [
'code' => $arg->getCode(),
'message' => $arg->getMessage() . ($info ? ': ' . $info : ''),
];
}
else if (is_string($arg)) {
$arg = ['message' => $arg];
}
if (empty($arg['code'])) {
$arg['code'] = 500;
}
$cli = php_sapi_name() == 'cli';
$arg['cli'] = $cli;
$arg['log'] = $log;
$arg['terminate'] = $terminate;
// send error to external error tracking tool
if (self::$instance) {
$arg = self::$instance->plugins->exec_hook('raise_error', $arg);
}
// installer
if (!$cli && class_exists('rcmail_install', false)) {
$rci = rcmail_install::get_instance();
$rci->raise_error($arg);
return;
}
if (!isset($arg['message'])) {
$arg['message'] = '';
}
if (($log || $terminate) && !$cli && $arg['message']) {
$arg['fatal'] = $terminate;
self::log_bug($arg);
}
if ($cli) {
fwrite(STDERR, 'ERROR: ' . trim($arg['message']) . "\n");
}
else if ($terminate && is_object(self::$instance->output)) {
self::$instance->output->raise_error($arg['code'], $arg['message']);
}
else if ($terminate) {
header("HTTP/1.0 500 Internal Error");
}
// terminate script
if ($terminate) {
if (defined('ROUNDCUBE_TEST_MODE') && ROUNDCUBE_TEST_MODE) {
throw new Exception('Error raised');
}
exit(1);
}
}
/**
* Log an error
*
* @param array $arg_arr Named parameters
* @see self::raise_error()
*/
public static function log_bug($arg_arr)
{
$program = !empty($arg_arr['type']) ? strtoupper($arg_arr['type']) : 'PHP';
$uri = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '';
// write error to local log file
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$post_query = [];
foreach (['_task', '_action'] as $arg) {
if (isset($_POST[$arg]) && !isset($_GET[$arg])) {
$post_query[$arg] = $_POST[$arg];
}
}
if (!empty($post_query)) {
$uri .= (strpos($uri, '?') != false ? '&' : '?')
. http_build_query($post_query, '', '&');
}
}
$log_entry = sprintf("%s Error: %s%s (%s %s)",
$program,
$arg_arr['message'],
!empty($arg_arr['file']) ? sprintf(' in %s on line %d', $arg_arr['file'], $arg_arr['line']) : '',
$_SERVER['REQUEST_METHOD'],
$uri
);
if (!self::write_log('errors', $log_entry)) {
// send error to PHPs error handler if write_log didn't succeed
trigger_error($arg_arr['message'], E_USER_WARNING);
}
}
/**
* Write debug info to the log
*
* @param string $engine Engine type - file name (memcache, apc, redis)
* @param string $data Data string to log
* @param bool $result Operation result
*/
public static function debug($engine, $data, $result = null)
{
- static $debug_counter;
+ static $debug_counter = 0;
$line = '[' . (++$debug_counter[$engine]) . '] ' . $data;
if (($len = strlen($line)) > self::DEBUG_LINE_LENGTH) {
$diff = $len - self::DEBUG_LINE_LENGTH;
$line = substr($line, 0, self::DEBUG_LINE_LENGTH) . "... [truncated $diff bytes]";
}
if ($result !== null) {
$line .= ' [' . ($result ? 'TRUE' : 'FALSE') . ']';
}
self::write_log($engine, $line);
}
/**
* Returns current time (with microseconds).
*
* @return float Current time in seconds since the Unix
*/
public static function timer()
{
return microtime(true);
}
/**
* Logs time difference according to provided timer
*
* @param float $timer Timer (self::timer() result)
* @param string $label Log line prefix
* @param string $dest Log file name
*
* @see self::timer()
*/
public static function print_timer($timer, $label = 'Timer', $dest = 'console')
{
static $print_count = 0;
$print_count++;
$now = self::timer();
$diff = $now - $timer;
if (empty($label)) {
$label = 'Timer '.$print_count;
}
self::write_log($dest, sprintf("%s: %0.4f sec", $label, $diff));
}
/**
* Setter for system user object
*
* @param rcube_user Current user instance
*/
public function set_user($user)
{
if (is_object($user)) {
$this->user = $user;
// overwrite config with user preferences
$this->config->set_user_prefs((array)$this->user->get_prefs());
}
}
/**
* Getter for logged user ID.
*
* @return mixed User identifier
*/
public function get_user_id()
{
if (is_object($this->user)) {
return $this->user->ID;
}
else if (isset($_SESSION['user_id'])) {
return $_SESSION['user_id'];
}
}
/**
* Getter for logged user name.
*
* @return string User name
*/
public function get_user_name()
{
if (is_object($this->user)) {
return $this->user->get_username();
}
else if (isset($_SESSION['username'])) {
return $_SESSION['username'];
}
}
/**
* Getter for logged user email (derived from user name not identity).
*
* @return string User email address
*/
public function get_user_email()
{
if (!empty($this->user_email)) {
return $this->user_email;
}
if (is_object($this->user)) {
return $this->user->get_username('mail');
}
}
/**
* Getter for logged user password.
*
* @return string User password
*/
public function get_user_password()
{
if (!empty($this->password)) {
return $this->password;
}
if (isset($_SESSION['password'])) {
return $this->decrypt($_SESSION['password']);
}
}
/**
* Get the per-user log directory
*
* @return string|false Per-user log directory if it exists and is writable, False otherwise
*/
protected function get_user_log_dir()
{
$log_dir = $this->config->get('log_dir', RCUBE_INSTALL_PATH . 'logs');
$user_name = $this->get_user_name();
$user_log_dir = $log_dir . '/' . $user_name;
return !empty($user_name) && is_writable($user_log_dir) ? $user_log_dir : false;
}
/**
* Getter for logged user language code.
*
* @return string User language code
*/
public function get_user_language()
{
if (is_object($this->user)) {
return $this->user->language;
}
else if (isset($_SESSION['language'])) {
return $_SESSION['language'];
}
}
/**
* Unique Message-ID generator.
*
* @param string $sender Optional sender e-mail address
*
* @return string Message-ID
*/
public function gen_message_id($sender = null)
{
$local_part = md5(uniqid('rcube'.mt_rand(), true));
$domain_part = '';
if ($sender && preg_match('/@([^\s]+\.[a-z0-9-]+)/', $sender, $m)) {
$domain_part = $m[1];
}
else {
$domain_part = $this->user->get_username('domain');
}
// Try to find FQDN, some spamfilters doesn't like 'localhost' (#1486924)
if (!preg_match('/\.[a-z0-9-]+$/i', $domain_part)) {
foreach ([$_SERVER['HTTP_HOST'], $_SERVER['SERVER_NAME']] as $host) {
$host = preg_replace('/:[0-9]+$/', '', $host);
if ($host && preg_match('/\.[a-z]+$/i', $host)) {
$domain_part = $host;
break;
}
}
}
return sprintf('<%s@%s>', $local_part, $domain_part);
}
/**
* Send the given message using the configured method.
*
* @param Mail_Mime &$message Reference to Mail_MIME object
* @param string $from Sender address string
* @param array|string $mailto Either a comma-separated list of recipients (RFC822 compliant),
* or an array of recipients, each RFC822 valid
* @param array|string &$error SMTP error array or (deprecated) string
* @param string &$body_file Location of file with saved message body,
* used when delay_file_io is enabled
* @param array $options SMTP options (e.g. DSN request)
* @param bool $disconnect Close SMTP connection ASAP
*
* @return bool Send status.
*/
public function deliver_message(&$message, $from, $mailto, &$error,
&$body_file = null, $options = null, $disconnect = false)
{
$plugin = $this->plugins->exec_hook('message_before_send', [
'message' => $message,
'from' => $from,
'mailto' => $mailto,
'options' => $options,
]);
if ($plugin['abort']) {
if (!empty($plugin['error'])) {
$error = $plugin['error'];
}
if (!empty($plugin['body_file'])) {
$body_file = $plugin['body_file'];
}
return isset($plugin['result']) ? $plugin['result'] : false;
}
$from = $plugin['from'];
$mailto = $plugin['mailto'];
$options = $plugin['options'];
$message = $plugin['message'];
$headers = $message->headers();
// generate list of recipients
$a_recipients = (array) $mailto;
if (!empty($headers['Cc'])) {
$a_recipients[] = $headers['Cc'];
}
if (!empty($headers['Bcc'])) {
$a_recipients[] = $headers['Bcc'];
}
// remove Bcc header and get the whole head of the message as string
$smtp_headers = $message->txtHeaders(['Bcc' => null], true);
if ($message->getParam('delay_file_io')) {
// use common temp dir
$body_file = rcube_utils::temp_filename('msg');
$mime_result = $message->saveMessageBody($body_file);
if (is_a($mime_result, 'PEAR_Error')) {
self::raise_error([
'code' => 650, 'file' => __FILE__, 'line' => __LINE__,
'message' => "Could not create message: ".$mime_result->getMessage()
],
true, false
);
return false;
}
$msg_body = fopen($body_file, 'r');
}
else {
$msg_body = $message->get();
}
// initialize SMTP connection
if (!is_object($this->smtp)) {
$this->smtp_init(true);
}
// send message
$sent = $this->smtp->send_mail($from, $a_recipients, $smtp_headers, $msg_body, $options);
$response = $this->smtp->get_response();
$error = $this->smtp->get_error();
if (!$sent) {
self::raise_error([
'code' => 800, 'type' => 'smtp',
'line' => __LINE__, 'file' => __FILE__,
'message' => implode("\n", $response)
], true, false);
// allow plugins to catch sending errors with the same parameters as in 'message_before_send'
$plugin = $this->plugins->exec_hook('message_send_error', $plugin + ['error' => $error]);
$error = $plugin['error'];
}
else {
$this->plugins->exec_hook('message_sent', ['headers' => $headers, 'body' => $msg_body, 'message' => $message]);
// remove MDN/DSN headers after sending
unset($headers['Return-Receipt-To'], $headers['Disposition-Notification-To']);
if ($this->config->get('smtp_log')) {
// get all recipient addresses
$mailto = implode(',', $a_recipients);
$mailto = rcube_mime::decode_address_list($mailto, null, false, null, true);
self::write_log('sendmail', sprintf("User %s [%s]; Message %s for %s; %s",
$this->user->get_username(),
rcube_utils::remote_addr(),
$headers['Message-ID'],
implode(', ', $mailto),
!empty($response) ? implode('; ', $response) : '')
);
}
}
if (is_resource($msg_body)) {
fclose($msg_body);
}
if ($disconnect) {
$this->smtp->disconnect();
}
// Add Bcc header back
if (!empty($headers['Bcc'])) {
$message->headers(['Bcc' => $headers['Bcc']], true);
}
return $sent;
}
}
/**
* Lightweight plugin API class serving as a dummy if plugins are not enabled
*
* @package Framework
* @subpackage Core
*/
class rcube_dummy_plugin_api
{
/**
* Triggers a plugin hook.
*
* @param string $hook Hook name
* @param array $args Hook arguments
*
* @return array Hook arguments
* @see rcube_plugin_api::exec_hook()
*/
public function exec_hook($hook, $args = [])
{
return $args;
}
}

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