/program/lib/Roundcube/rcube.php
PHP | 1550 lines | 866 code | 253 blank | 431 comment | 210 complexity | 6db24db609a1762527ae118e714d4164 MD5 | raw file
Possible License(s): GPL-3.0, LGPL-2.1
- <?php
- /*
- +-----------------------------------------------------------------------+
- | This file is part of the Roundcube Webmail client |
- | Copyright (C) 2008-2012, The Roundcube Dev Team |
- | Copyright (C) 2011-2012, 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
- {
- const INIT_WITH_DB = 1;
- const INIT_WITH_PLUGINS = 2;
- /**
- * Singleton instace of rcube
- *
- * @var rcube
- */
- static protected $instance;
- /**
- * Stores instance of rcube_config.
- *
- * @var rcube_config
- */
- public $config;
- /**
- * Instace of database class.
- *
- * @var rcube_db
- */
- public $db;
- /**
- * Instace of Memcache class.
- *
- * @var Memcache
- */
- 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_storage class.
- *
- * @var rcube_storage
- */
- public $storage;
- /**
- * Instance of rcube_output class.
- *
- * @var rcube_output
- */
- public $output;
- /**
- * Instance of rcube_plugin_api.
- *
- * @var rcube_plugin_api
- */
- public $plugins;
- /* private/protected vars */
- protected $texts;
- protected $caches = array();
- protected $shutdown_functions = array();
- /**
- * This implements the 'singleton' design pattern
- *
- * @param integer Options to initialize with this instance. See rcube::INIT_WITH_* constants
- *
- * @return rcube The one and only instance
- */
- static function get_instance($mode = 0)
- {
- if (!self::$instance) {
- self::$instance = new rcube();
- self::$instance->init($mode);
- }
- return self::$instance;
- }
- /**
- * Private constructor
- */
- protected function __construct()
- {
- // load configuration
- $this->config = new rcube_config;
- $this->plugins = new rcube_dummy_plugin_api;
- register_shutdown_function(array($this, 'shutdown'));
- }
- /**
- * Initial startup function
- */
- 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) {
- $config_all = $this->config->all();
- $this->db = rcube_db::factory($config_all['db_dsnw'], $config_all['db_dsnr'], $config_all['db_persistent']);
- $this->db->set_debug((bool)$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;
- $this->mc_available = 0;
- // add all configured hosts to pool
- $pconnect = $this->config->get('memcache_pconnect', true);
- foreach ($this->config->get('memcache_hosts', array()) as $host) {
- if (substr($host, 0, 7) != 'unix://') {
- list($host, $port) = explode(':', $host);
- if (!$port) $port = 11211;
- }
- else {
- $port = 0;
- }
- $this->mc_available += intval($this->memcache->addServer(
- $host, $port, $pconnect, 1, 1, 15, false, array($this, 'memcache_failure')));
- }
- // test connection and failover (will result in $this->mc_available == 0 on complete failure)
- $this->memcache->increment('__CONNECTIONTEST__', 1); // NOP if key doesn't exist
- if (!$this->mc_available) {
- $this->memcache = false;
- }
- }
- return $this->memcache;
- }
- /**
- * Callback for memcache failure
- */
- public function memcache_failure($host, $port)
- {
- static $seen = array();
- // only report once
- if (!$seen["$host:$port"]++) {
- $this->mc_available--;
- self::raise_error(array(
- 'code' => 604, 'type' => 'db',
- 'line' => __LINE__, 'file' => __FILE__,
- 'message' => "Memcache failure on host $host:$port"),
- true, false);
- }
- }
- /**
- * Initialize and get cache object
- *
- * @param string $name Cache identifier
- * @param string $type Cache type ('db', 'apc' or 'memcache')
- * @param string $ttl Expiration time for cache items
- * @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[$name]) && ($userid = $this->get_user_id())) {
- $this->caches[$name] = new rcube_cache($type, $userid, $name, $ttl, $packed);
- }
- return $this->caches[$name];
- }
- /**
- * 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] = new rcube_cache_shared($type, $name, $ttl, $packed);
- }
- return $this->caches[$shared_name];
- }
- /**
- * 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) {
- $this->smtp->connect();
- }
- }
- /**
- * Initialize and get storage object
- *
- * @return rcube_storage Storage object
- */
- public function get_storage()
- {
- // already initialized
- if (!is_object($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($driver_class)) {
- self::raise_error(array(
- 'code' => 700, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Storage driver class ($driver) not found!"),
- true, true);
- }
- // Initialize storage object
- $this->storage = new $driver_class;
- // for backward compat. (deprecated, will be removed)
- $this->imap = $this->storage;
- // enable caching of mail data
- $storage_cache = $this->config->get("{$driver}_cache");
- $messages_cache = $this->config->get('messages_cache');
- // for backward compatybility
- if ($storage_cache === null && $messages_cache === null && $this->config->get('enable_caching')) {
- $storage_cache = 'db';
- $messages_cache = true;
- }
- if ($storage_cache) {
- $this->storage->set_caching($storage_cache);
- }
- if ($messages_cache) {
- $this->storage->set_messages_caching(true);
- }
- // set pagesize from config
- $pagesize = $this->config->get('mail_pagesize');
- if (!$pagesize) {
- $pagesize = $this->config->get('pagesize', 50);
- }
- $this->storage->set_pagesize($pagesize);
- // set class options
- $options = array(
- '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"),
- 'timeout' => (int) $this->config->get("{$driver}_timeout"),
- 'skip_deleted' => (bool) $this->config->get('skip_deleted'),
- 'driver' => $driver,
- );
- if (!empty($_SESSION['storage_host'])) {
- $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();
- }
- /**
- * Set storage parameters.
- * This must be done AFTER connecting to the server!
- */
- protected function set_storage_prop()
- {
- $storage = $this->get_storage();
- $storage->set_charset($this->config->get('default_charset', RCUBE_CHARSET));
- if ($default_folders = $this->config->get('default_folders')) {
- $storage->set_default_folders($default_folders);
- }
- if (isset($_SESSION['mbox'])) {
- $storage->set_folder($_SESSION['mbox']);
- }
- if (isset($_SESSION['page'])) {
- $storage->set_page($_SESSION['page']);
- }
- }
- /**
- * Create session object and start the session.
- */
- public function session_init()
- {
- // session started (Installer?)
- if (session_id()) {
- return;
- }
- $sess_name = $this->config->get('session_name');
- $sess_domain = $this->config->get('session_domain');
- $sess_path = $this->config->get('session_path');
- $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', $sess_path);
- }
- // set session garbage collecting time according to session_lifetime
- if ($lifetime) {
- ini_set('session.gc_maxlifetime', $lifetime * 2);
- }
- ini_set('session.cookie_secure', $is_secure);
- ini_set('session.name', $sess_name ? $sess_name : 'roundcube_sessid');
- ini_set('session.use_cookies', 1);
- ini_set('session.use_only_cookies', 1);
- ini_set('session.cookie_httponly', 1);
- // use database for storing session data
- $this->session = new rcube_session($this->get_dbh(), $this->config);
- $this->session->register_gc_handler(array($this, 'gc'));
- $this->session->set_secret($this->config->get('des_key') . dirname($_SERVER['SCRIPT_NAME']));
- $this->session->set_ip_check($this->config->get('ip_check'));
- // start PHP session (if not in CLI mode)
- if ($_SERVER['REMOTE_ADDR']) {
- $this->session->start();
- }
- }
- /**
- * Garbage collector - cache/temp cleaner
- */
- public function gc()
- {
- rcube_cache::gc();
- rcube_cache_shared::gc();
- $this->get_storage()->cache_gc();
- $this->gc_temp();
- }
- /**
- * Garbage collector function for temp files.
- * Remove temp files older than two days
- */
- public function gc_temp()
- {
- $tmp = unslashify($this->config->get('temp_dir'));
- $expire = time() - 172800; // expire in 48 hours
- if ($tmp && ($dir = opendir($tmp))) {
- while (($fname = readdir($dir)) !== false) {
- if ($fname{0} == '.') {
- continue;
- }
- if (filemtime($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 = array('name' => $attrib);
- }
- $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 = $this->texts[$domain.'.'.$name])) {
- }
- // text does not exist
- else if (!($text = $this->texts[$name])) {
- return "[$name]";
- }
- // replace vars in text
- if (is_array($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 strtr($text, array('\n' => "\n"));
- }
- /**
- * 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 $ref_domain Sets domain name if label is found
- *
- * @return boolean True if text exists (either in the current language or in en_US)
- */
- public function text_exists($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) {
- $ref_domain = $domain;
- return isset($this->texts[$domain.'.'.$name]);
- }
- return false;
- }
- /**
- * Load a localization package
- *
- * @param string Language ID
- * @param array Additional text labels/messages
- */
- 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']) {
- $this->texts = array();
- // handle empty lines after closing PHP tag in localization files
- ob_start();
- // get english labels (these should be complete)
- @include(RCUBE_LOCALIZATION_DIR . 'en_US/labels.inc');
- @include(RCUBE_LOCALIZATION_DIR . 'en_US/messages.inc');
- if (is_array($labels))
- $this->texts = $labels;
- if (is_array($messages))
- $this->texts = array_merge($this->texts, $messages);
- // include user language files
- if ($lang != 'en' && $lang != 'en_US' && is_dir(RCUBE_LOCALIZATION_DIR . $lang)) {
- include_once(RCUBE_LOCALIZATION_DIR . $lang . '/labels.inc');
- include_once(RCUBE_LOCALIZATION_DIR . $lang . '/messages.inc');
- if (is_array($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 += $add;
- }
- }
- /**
- * Check the given string and return a valid language code
- *
- * @param string Language code
- *
- * @return string Valid language code
- */
- protected function language_prop($lang)
- {
- static $rcube_languages, $rcube_language_aliases;
- // user HTTP_ACCEPT_LANGUAGE if no language is specified
- if (empty($lang) || $lang == 'auto') {
- $accept_langs = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
- $lang = str_replace('-', '_', $accept_langs[0]);
- }
- if (empty($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 (!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 $sa_languages = array();
- if (!sizeof($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 . $name)) {
- continue;
- }
- if ($label = $rcube_languages[$name]) {
- $sa_languages[$name] = $label;
- }
- }
- closedir($dh);
- }
- }
- return $sa_languages;
- }
- /**
- * 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 {
- self::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 {
- self::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
- * rcube::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)
- {
- // 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 ($_SERVER['REMOTE_ADDR'] && is_object($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)) {
- $this->storage->close();
- }
- }
- /**
- * Registers shutdown function to be executed on shutdown.
- * The functions will be executed before destroying any
- * objects like smtp, imap, session, etc.
- *
- * @param callback Function callback
- */
- public function add_shutdown_function($function)
- {
- $this->shutdown_functions[] = $function;
- }
- /**
- * Quote a given string.
- * Shortcut function for rcube_utils::rep_specialchars_output()
- *
- * @return string HTML-quoted string
- */
- public static function Q($str, $mode = 'strict', $newlines = true)
- {
- return rcube_utils::rep_specialchars_output($str, 'html', $mode, $newlines);
- }
- /**
- * Quote a given string for javascript output.
- * Shortcut function for rcube_utils::rep_specialchars_output()
- *
- * @return string JS-quoted string
- */
- public static function JQ($str)
- {
- return rcube_utils::rep_specialchars_output($str, 'js');
- }
- /**
- * 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);
- }
- /**
- * 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', array('args' => $args));
- if ($plugin['abort']) {
- return;
- }
- $args = $plugin['args'];
- }
- $msg = array();
- foreach ($args as $arg) {
- $msg[] = !is_string($arg) ? var_export($arg, true) : $arg;
- }
- self::write_log('console', join(";\n", $msg));
- }
- /**
- * Append a line to a logfile in the logs directory.
- * Date will be added automatically to the line.
- *
- * @param $name name of log file
- * @param line Line to append
- */
- public static function write_log($name, $line)
- {
- if (!is_string($line)) {
- $line = var_export($line, true);
- }
- $date_format = self::$instance ? self::$instance->config->get('log_date_format') : null;
- $log_driver = self::$instance ? self::$instance->config->get('log_driver') : null;
- if (empty($date_format)) {
- $date_format = 'd-M-Y H:i:s O';
- }
- $date = date($date_format);
- // trigger logging hook
- if (is_object(self::$instance) && is_object(self::$instance->plugins)) {
- $log = self::$instance->plugins->exec_hook('write_log', array('name' => $name, 'date' => $date, 'line' => $line));
- $name = $log['name'];
- $line = $log['line'];
- $date = $log['date'];
- if ($log['abort'])
- return true;
- }
- if ($log_driver == 'syslog') {
- $prio = $name == 'errors' ? LOG_ERR : LOG_INFO;
- syslog($prio, $line);
- return true;
- }
- // log_driver == 'file' is assumed here
- $line = sprintf("[%s]: %s\n", $date, $line);
- $log_dir = self::$instance ? self::$instance->config->get('log_dir') : null;
- if (empty($log_dir)) {
- $log_dir = RCUBE_INSTALL_PATH . 'logs';
- }
- // try to open specific log file for writing
- $logfile = $log_dir.'/'.$name;
- if ($fp = @fopen($logfile, 'a')) {
- fwrite($fp, $line);
- fflush($fp);
- fclose($fp);
- return true;
- }
- trigger_error("Error writing to log file $logfile; Please check permissions", E_USER_WARNING);
- return false;
- }
- /**
- * Throw system error (and show error page).
- *
- * @param array Named parameters
- * - code: Error code (required)
- * - type: Error type [php|db|imap|javascript] (required)
- * - message: Error message
- * - file: File where error occured
- * - line: Line where error occured
- * @param boolean True to log the error
- * @param boolean Terminate script execution
- */
- public static function raise_error($arg = array(), $log = false, $terminate = false)
- {
- // handle PHP exceptions
- if (is_object($arg) && is_a($arg, 'Exception')) {
- $arg = array(
- 'type' => 'php',
- 'code' => $arg->getCode(),
- 'line' => $arg->getLine(),
- 'file' => $arg->getFile(),
- 'message' => $arg->getMessage(),
- );
- }
- else if (is_string($arg)) {
- $arg = array('message' => $arg, 'type' => 'php');
- }
- if (empty($arg['code'])) {
- $arg['code'] = 500;
- }
- // installer
- if (class_exists('rcube_install', false)) {
- $rci = rcube_install::get_instance();
- $rci->raise_error($arg);
- return;
- }
- $cli = php_sapi_name() == 'cli';
- if (($log || $terminate) && !$cli && $arg['type'] && $arg['message']) {
- $arg['fatal'] = $terminate;
- self::log_bug($arg);
- }
- // terminate script
- if ($terminate) {
- // display error page
- if (is_object(self::$instance->output)) {
- self::$instance->output->raise_error($arg['code'], $arg['message']);
- }
- else if ($cli) {
- fwrite(STDERR, 'ERROR: ' . $arg['message']);
- }
- exit(1);
- }
- }
- /**
- * Report error according to configured debug_level
- *
- * @param array Named parameters
- * @see self::raise_error()
- */
- public static function log_bug($arg_arr)
- {
- $program = strtoupper($arg_arr['type']);
- $level = self::get_instance()->config->get('debug_level');
- // disable errors for ajax requests, write to log instead (#1487831)
- if (($level & 4) && !empty($_REQUEST['_remote'])) {
- $level = ($level ^ 4) | 1;
- }
- // write error to local log file
- if (($level & 1) || !empty($arg_arr['fatal'])) {
- if ($_SERVER['REQUEST_METHOD'] == 'POST') {
- $post_query = '?_task='.urlencode($_POST['_task']).'&_action='.urlencode($_POST['_action']);
- }
- else {
- $post_query = '';
- }
- $log_entry = sprintf("%s Error: %s%s (%s %s)",
- $program,
- $arg_arr['message'],
- $arg_arr['file'] ? sprintf(' in %s on line %d', $arg_arr['file'], $arg_arr['line']) : '',
- $_SERVER['REQUEST_METHOD'],
- $_SERVER['REQUEST_URI'] . $post_query);
- 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);
- }
- }
- // report the bug to the global bug reporting system
- if ($level & 2) {
- // TODO: Send error via HTTP
- }
- // show error if debug_mode is on
- if ($level & 4) {
- print "<b>$program Error";
- if (!empty($arg_arr['file']) && !empty($arg_arr['line'])) {
- print " in $arg_arr[file] ($arg_arr[line])";
- }
- print ':</b> ';
- print nl2br($arg_arr['message']);
- print '<br />';
- flush();
- }
- }
- /**
- * 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, $diff));
- }
- /**
- * Getter for logged user ID.
- *
- * @return mixed User identifier
- */
- public function get_user_id()
- {
- if (is_object($this->user)) {
- return $this->user->ID;
- }
- else if (isset($_SESSION['user_id'])) {
- return $_SESSION['user_id'];
- }
- return null;
- }
- /**
- * Getter for logged user name.
- *
- * @return string User name
- */
- public function get_user_name()
- {
- if (is_object($this->user)) {
- return $this->user->get_username();
- }
- else if (isset($_SESSION['username'])) {
- return $_SESSION['username'];
- }
- }
- /**
- * Getter for logged user email (derived from user name not identity).
- *
- * @return string User email address
- */
- public function get_user_email()
- {
- if (is_object($this->user)) {
- return $this->user->get_username('mail');
- }
- }
- /**
- * Getter for logged user password.
- *
- * @return string User password
- */
- public function get_user_password()
- {
- if ($this->password) {
- return $this->password;
- }
- else if ($_SESSION['password']) {
- return $this->decrypt($_SESSION['password']);
- }
- }
- /**
- * 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.
- *
- * @return string Message-ID
- */
- public function gen_message_id()
- {
- $local_part = md5(uniqid('rcube'.mt_rand(), true));
- $domain_part = $this->user->get_username('domain');
- // Try to find FQDN, some spamfilters doesn't like 'localhost' (#1486924)
- if (!preg_match('/\.[a-z]+$/i', $domain_part)) {
- foreach (array($_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;
- }
- }
- }
- return sprintf('<%s@%s>', $local_part, $domain_part);
- }
- /**
- * Send the given message using the configured method.
- *
- * @param object $message Reference to Mail_MIME object
- * @param string $from Sender address string
- * @param array $mailto Array of recipient address strings
- * @param array $error SMTP error array (reference)
- * @param string $body_file Location of file with saved message body (reference),
- * used when delay_file_io is enabled
- * @param array $options SMTP options (e.g. DSN request)
- *
- * @return boolean Send status.
- */
- public function deliver_message(&$message, $from, $mailto, &$error, &$body_file = null, $options = null)
- {
- $plugin = $this->plugins->exec_hook('message_before_send', array(
- 'message' => $message,
- 'from' => $from,
- 'mailto' => $mailto,
- 'options' => $options,
- ));
- $from = $plugin['from'];
- $mailto = $plugin['mailto'];
- $options = $plugin['options'];
- $message = $plugin['message'];
- $headers = $message->headers();
- // send thru SMTP server using custom SMTP library
- if ($this->config->get('smtp_server')) {
- // generate list of recipients
- $a_recipients = array($mailto);
- if (strlen($headers['Cc']))
- $a_recipients[] = $headers['Cc'];
- if (strlen($headers['Bcc']))
- $a_recipients[] = $headers['Bcc'];
- // clean Bcc from header for recipients
- $send_headers = $headers;
- unset($send_headers['Bcc']);
- // here too, it because txtHeaders() below use $message->_headers not only $send_headers
- unset($message->_headers['Bcc']);
- $smtp_headers = $message->txtHeaders($send_headers, true);
- if ($message->getParam('delay_file_io')) {
- // use common temp dir
- $temp_dir = $this->config->get('temp_dir');
- $body_file = tempnam($temp_dir, 'rcmMsg');
- if (PEAR::isError($mime_result = $message->saveMessageBody($body_file))) {
- self::raise_error(array('code' => 650, 'type' => 'php',
- '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 = $message->get();
- }
- // send message
- if (!is_object($this->smtp)) {
- $this->smtp_init(true);
- }
- $sent = $this->smtp->send_mail($from, $a_recipients, $smtp_headers, $msg_body, $options);
- $response = $this->smtp->get_response();
- $error = $this->smtp->get_error();
- // log error
- if (!$sent) {
- self::raise_error(array('code' => 800, 'type' => 'smtp',
- 'line' => __LINE__, 'file' => __FILE__,
- 'message' => "SMTP error: ".join("\n", $response)), TRUE, FALSE);
- }
- }
- // send mail using PHP's mail() function
- else {
- // unset some headers because they will be added by the mail() function
- $headers_enc = $message->headers($headers);
- $headers_php = $message->_headers;
- unset($headers_php['To'], $headers_php['Subject']);
- // reset stored headers and overwrite
- $message->_headers = array();
- $header_str = $message->txtHeaders($headers_php);
- // #1485779
- if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
- if (preg_match_all('/<([^@]+@[^>]+)>/', $headers_enc['To'], $m)) {
- $headers_enc['To'] = implode(', ', $m[1]);
- }
- }
- $msg_body = $message->get();
- if (PEAR::isError($msg_body)) {
- self::raise_error(array('code' => 650, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Could not create message: ".$msg_body->getMessage()),
- TRUE, FALSE);
- }
- else {
- $delim = $this->config->header_delimiter();
- $to = $headers_enc['To'];
- $subject = $headers_enc['Subject'];
- $header_str = rtrim($header_str);
- if ($delim != "\r\n") {
- $header_str = str_replace("\r\n", $delim, $header_str);
- $msg_body = str_replace("\r\n", $delim, $msg_body);
- $to = str_replace("\r\n", $delim, $to);
- $subject = str_replace("\r\n", $delim, $subject);
- }
- if (filter_var(ini_get('safe_mode'), FILTER_VALIDATE_BOOLEAN))
- $sent = mail($to, $subject, $msg_body, $header_str);
- else
- $sent = mail($to, $subject, $msg_body, $header_str, "-f$from");
- }
- }
- if ($sent) {
- $this->plugins->exec_hook('message_sent', array('headers' => $headers, 'body' => $msg_body));
- // remove MDN headers after sending
- unset($headers['Return-Receipt-To'], $headers['Disposition-Notification-To']);
- // get all recipients
- if ($headers['Cc'])
- $mailto .= $headers['Cc'];
- if ($headers['Bcc'])
- $mailto .= $headers['Bcc'];
- if (preg_match_all('/<([^@]+@[^>]+)>/', $mailto, $m))
- $mailto = implode(', ', array_unique($m[1]));
- if ($this->config->get('smtp_log')) {
- self::write_log('sendmail', sprintf("User %s [%s]; Message for %s; %s",
- $this->user->get_username(),
- $_SERVER['REMOTE_ADDR'],
- $mailto,
- !empty($response) ? join('; ', $response) : ''));
- }
- }
- if (is_resource($msg_body)) {
- fclose($msg_body);
- }
- $message->_headers = array();
- $message->headers($headers);
- return $sent;
- }
- }
- /**
- * Lightweight plugin API class serving as a dummy if plugins are not enabled
- *
- * @package Framework
- * @subpackage Core
- */
- class rcube_dummy_plugin_api
- {
- /**
- * Triggers a plugin hook.
- * @see rcube_plugin_api::exec_hook()
- */
- public function exec_hook($hook, $args = array())
- {
- return $args;
- }
- }