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1211 lines
33 KiB
PHP
1211 lines
33 KiB
PHP
<?php
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/*
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+-----------------------------------------------------------------------+
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| program/include/rcube.php |
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| |
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| This file is part of the Roundcube Webmail client |
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| Copyright (C) 2008-2012, The Roundcube Dev Team |
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| Copyright (C) 2011-2012, Kolab Systems AG |
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| |
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| Licensed under the GNU General Public License version 3 or |
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| any later version with exceptions for skins & plugins. |
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| See the README file for a full license statement. |
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| |
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| PURPOSE: |
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| Framework base class providing core functions and holding |
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| instances of all 'global' objects like db- and storage-connections |
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+-----------------------------------------------------------------------+
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| Author: Thomas Bruederli <roundcube@gmail.com> |
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+-----------------------------------------------------------------------+
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$Id$
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*/
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/**
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* Base class of the Roundcube Framework
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* implemented as singleton
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*
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* @package Core
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*/
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class rcube
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{
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const INIT_WITH_DB = 1;
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const INIT_WITH_PLUGINS = 2;
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/**
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* Singleton instace of rcube
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*
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* @var rcmail
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*/
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static protected $instance;
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/**
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* Stores instance of rcube_config.
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*
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* @var rcube_config
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*/
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public $config;
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/**
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* Instace of database class.
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*
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* @var rcube_mdb2
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*/
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public $db;
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/**
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* Instace of Memcache class.
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*
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* @var rcube_mdb2
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*/
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public $memcache;
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/**
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* Instace of rcube_session class.
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*
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* @var rcube_session
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*/
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public $session;
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/**
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* Instance of rcube_smtp class.
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*
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* @var rcube_smtp
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*/
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public $smtp;
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/**
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* Instance of rcube_storage class.
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*
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* @var rcube_storage
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*/
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public $storage;
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/**
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* Instance of rcube_output class.
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*
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* @var rcube_output
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*/
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public $output;
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/**
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* Instance of rcube_plugin_api.
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*
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* @var rcube_plugin_api
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*/
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public $plugins;
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/* private/protected vars */
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protected $texts;
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protected $caches = array();
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protected $shutdown_functions = array();
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protected $expunge_cache = false;
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/**
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* This implements the 'singleton' design pattern
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*
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* @return rcube The one and only instance
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*/
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static function get_instance()
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{
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if (!self::$instance) {
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self::$instance = new rcube();
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}
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return self::$instance;
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}
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/**
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* Private constructor
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*/
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protected function __construct()
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{
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// load configuration
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$this->config = new rcube_config();
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$this->plugins = new rcube_dummy_plugin_api;
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register_shutdown_function(array($this, 'shutdown'));
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}
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/**
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* Initial startup function
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*/
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protected function init($mode = 0)
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{
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// initialize syslog
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if ($this->config->get('log_driver') == 'syslog') {
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$syslog_id = $this->config->get('syslog_id', 'roundcube');
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$syslog_facility = $this->config->get('syslog_facility', LOG_USER);
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openlog($syslog_id, LOG_ODELAY, $syslog_facility);
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}
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// connect to database
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if ($mode & self::INIT_WITH_DB) {
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$this->get_dbh();
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}
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// create plugin API and load plugins
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if ($mode & self::INIT_WITH_PLUGINS) {
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$this->plugins = rcube_plugin_api::get_instance();
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}
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}
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/**
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* Get the current database connection
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*
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* @return rcube_mdb2 Database connection object
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*/
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public function get_dbh()
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{
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if (!$this->db) {
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$config_all = $this->config->all();
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$this->db = new rcube_mdb2($config_all['db_dsnw'], $config_all['db_dsnr'], $config_all['db_persistent']);
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$this->db->sqlite_initials = INSTALL_PATH . 'SQL/sqlite.initial.sql';
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$this->db->set_debug((bool)$config_all['sql_debug']);
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}
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return $this->db;
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}
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/**
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* Get global handle for memcache access
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*
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* @return object Memcache
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*/
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public function get_memcache()
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{
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if (!isset($this->memcache)) {
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// no memcache support in PHP
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if (!class_exists('Memcache')) {
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$this->memcache = false;
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return false;
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}
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$this->memcache = new Memcache;
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$this->mc_available = 0;
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// add alll configured hosts to pool
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$pconnect = $this->config->get('memcache_pconnect', true);
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foreach ($this->config->get('memcache_hosts', array()) as $host) {
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list($host, $port) = explode(':', $host);
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if (!$port) $port = 11211;
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$this->mc_available += intval($this->memcache->addServer($host, $port, $pconnect, 1, 1, 15, false, array($this, 'memcache_failure')));
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}
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// test connection and failover (will result in $this->mc_available == 0 on complete failure)
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$this->memcache->increment('__CONNECTIONTEST__', 1); // NOP if key doesn't exist
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if (!$this->mc_available)
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$this->memcache = false;
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}
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return $this->memcache;
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}
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/**
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* Callback for memcache failure
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*/
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public function memcache_failure($host, $port)
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{
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static $seen = array();
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// only report once
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if (!$seen["$host:$port"]++) {
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$this->mc_available--;
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self::raise_error(array('code' => 604, 'type' => 'db',
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'line' => __LINE__, 'file' => __FILE__,
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'message' => "Memcache failure on host $host:$port"),
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true, false);
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}
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}
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/**
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* Initialize and get cache object
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*
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* @param string $name Cache identifier
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* @param string $type Cache type ('db', 'apc' or 'memcache')
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* @param int $ttl Expiration time for cache items in seconds
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* @param bool $packed Enables/disables data serialization
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*
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* @return rcube_cache Cache object
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*/
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public function get_cache($name, $type='db', $ttl=0, $packed=true)
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{
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if (!isset($this->caches[$name])) {
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$this->caches[$name] = new rcube_cache($type, $_SESSION['user_id'], $name, $ttl, $packed);
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}
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return $this->caches[$name];
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}
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/**
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* Create SMTP object and connect to server
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*
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* @param boolean True if connection should be established
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*/
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public function smtp_init($connect = false)
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{
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$this->smtp = new rcube_smtp();
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if ($connect)
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$this->smtp->connect();
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}
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/**
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* Initialize and get storage object
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*
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* @return rcube_storage Storage object
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*/
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public function get_storage()
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{
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// already initialized
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if (!is_object($this->storage)) {
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$this->storage_init();
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}
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return $this->storage;
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}
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/**
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* Initialize storage object
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*/
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public function storage_init()
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{
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// already initialized
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if (is_object($this->storage)) {
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return;
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}
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$driver = $this->config->get('storage_driver', 'imap');
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$driver_class = "rcube_{$driver}";
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if (!class_exists($driver_class)) {
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self::raise_error(array(
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'code' => 700, 'type' => 'php',
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'file' => __FILE__, 'line' => __LINE__,
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'message' => "Storage driver class ($driver) not found!"),
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true, true);
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}
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// Initialize storage object
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$this->storage = new $driver_class;
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// for backward compat. (deprecated, will be removed)
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$this->imap = $this->storage;
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// enable caching of mail data
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$storage_cache = $this->config->get("{$driver}_cache");
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$messages_cache = $this->config->get('messages_cache');
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// for backward compatybility
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if ($storage_cache === null && $messages_cache === null && $this->config->get('enable_caching')) {
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$storage_cache = 'db';
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$messages_cache = true;
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}
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if ($storage_cache)
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$this->storage->set_caching($storage_cache);
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if ($messages_cache)
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$this->storage->set_messages_caching(true);
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// set pagesize from config
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$pagesize = $this->config->get('mail_pagesize');
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if (!$pagesize) {
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$pagesize = $this->config->get('pagesize', 50);
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}
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$this->storage->set_pagesize($pagesize);
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// set class options
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$options = array(
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'auth_type' => $this->config->get("{$driver}_auth_type", 'check'),
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'auth_cid' => $this->config->get("{$driver}_auth_cid"),
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'auth_pw' => $this->config->get("{$driver}_auth_pw"),
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'debug' => (bool) $this->config->get("{$driver}_debug"),
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'force_caps' => (bool) $this->config->get("{$driver}_force_caps"),
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'timeout' => (int) $this->config->get("{$driver}_timeout"),
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'skip_deleted' => (bool) $this->config->get('skip_deleted'),
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'driver' => $driver,
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);
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if (!empty($_SESSION['storage_host'])) {
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$options['host'] = $_SESSION['storage_host'];
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$options['user'] = $_SESSION['username'];
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$options['port'] = $_SESSION['storage_port'];
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$options['ssl'] = $_SESSION['storage_ssl'];
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$options['password'] = $this->decrypt($_SESSION['password']);
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}
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$options = $this->plugins->exec_hook("storage_init", $options);
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// for backward compat. (deprecated, to be removed)
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$options = $this->plugins->exec_hook("imap_init", $options);
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$this->storage->set_options($options);
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$this->set_storage_prop();
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}
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/**
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* Connect to the mail storage server with stored session data
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*
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* @return bool True on success, False on error
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*/
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public function storage_connect()
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{
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$storage = $this->get_storage();
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if ($_SESSION['storage_host'] && !$storage->is_connected()) {
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$host = $_SESSION['storage_host'];
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$user = $_SESSION['username'];
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$port = $_SESSION['storage_port'];
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$ssl = $_SESSION['storage_ssl'];
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$pass = $this->decrypt($_SESSION['password']);
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if (!$storage->connect($host, $user, $pass, $port, $ssl)) {
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if (is_object($this->output))
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$this->output->show_message($storage->get_error_code() == -1 ? 'storageerror' : 'sessionerror', 'error');
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}
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else {
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$this->set_storage_prop();
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return $storage->is_connected();
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}
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}
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return false;
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}
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/**
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* Set storage parameters.
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* This must be done AFTER connecting to the server!
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*/
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protected function set_storage_prop()
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{
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$storage = $this->get_storage();
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$storage->set_charset($this->config->get('default_charset', RCMAIL_CHARSET));
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if ($default_folders = $this->config->get('default_folders')) {
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$storage->set_default_folders($default_folders);
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}
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if (isset($_SESSION['mbox'])) {
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$storage->set_folder($_SESSION['mbox']);
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}
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if (isset($_SESSION['page'])) {
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$storage->set_page($_SESSION['page']);
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}
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}
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/**
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* Create session object and start the session.
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*/
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public function session_init()
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{
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// session started (Installer?)
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if (session_id()) {
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return;
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}
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$sess_name = $this->config->get('session_name');
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$sess_domain = $this->config->get('session_domain');
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$lifetime = $this->config->get('session_lifetime', 0) * 60;
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// set session domain
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if ($sess_domain) {
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ini_set('session.cookie_domain', $sess_domain);
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}
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// set session garbage collecting time according to session_lifetime
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if ($lifetime) {
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ini_set('session.gc_maxlifetime', $lifetime * 2);
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}
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ini_set('session.cookie_secure', rcube_utils::https_check());
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ini_set('session.name', $sess_name ? $sess_name : 'roundcube_sessid');
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ini_set('session.use_cookies', 1);
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ini_set('session.use_only_cookies', 1);
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ini_set('session.serialize_handler', 'php');
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// use database for storing session data
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$this->session = new rcube_session($this->get_dbh(), $this->config);
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$this->session->register_gc_handler(array($this, 'temp_gc'));
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$this->session->register_gc_handler(array($this, 'cache_gc'));
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// start PHP session (if not in CLI mode)
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if ($_SERVER['REMOTE_ADDR']) {
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session_start();
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}
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}
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/**
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* Configure session object internals
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*/
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public function session_configure()
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{
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if (!$this->session) {
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return;
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}
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$lifetime = $this->config->get('session_lifetime', 0) * 60;
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$keep_alive = $this->config->get('keep_alive');
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|
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// set keep-alive/check-recent interval
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if ($keep_alive) {
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// be sure that it's less than session lifetime
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if ($lifetime) {
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$keep_alive = min($keep_alive, $lifetime - 30);
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}
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$keep_alive = max(60, $keep_alive);
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$this->session->set_keep_alive($keep_alive);
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}
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$this->session->set_secret($this->config->get('des_key') . $_SERVER['HTTP_USER_AGENT']);
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$this->session->set_ip_check($this->config->get('ip_check'));
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}
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|
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|
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/**
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* Garbage collector function for temp files.
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* Remove temp files older than two days
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*/
|
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public function temp_gc()
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{
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$tmp = unslashify($this->config->get('temp_dir'));
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$expire = mktime() - 172800; // expire in 48 hours
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if ($tmp && ($dir = opendir($tmp))) {
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while (($fname = readdir($dir)) !== false) {
|
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if ($fname{0} == '.') {
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continue;
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}
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if (filemtime($tmp.'/'.$fname) < $expire) {
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@unlink($tmp.'/'.$fname);
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}
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}
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closedir($dir);
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}
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}
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|
|
|
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/**
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* Garbage collector for cache entries.
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* Set flag to expunge caches on shutdown
|
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*/
|
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public function cache_gc()
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{
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// because this gc function is called before storage is initialized,
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// we just set a flag to expunge storage cache on shutdown.
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$this->expunge_cache = true;
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}
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|
|
|
|
|
/**
|
|
* Get localized text in the desired language
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|
*
|
|
* @param mixed $attrib Named parameters array or label name
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* @param string $domain Label domain (plugin) name
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*
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* @return string Localized text
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|
*/
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|
public function gettext($attrib, $domain=null)
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{
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// load localization files if not done yet
|
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if (empty($this->texts))
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$this->load_language();
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|
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// extract attributes
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if (is_string($attrib))
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$attrib = array('name' => $attrib);
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$name = $attrib['name'] ? $attrib['name'] : '';
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// attrib contain text values: use them from now
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if (($setval = $attrib[strtolower($_SESSION['language'])]) || ($setval = $attrib['en_us']))
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$this->texts[$name] = $setval;
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// check for text with domain
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if ($domain && ($text = $this->texts[$domain.'.'.$name]))
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;
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// text does not exist
|
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else if (!($text = $this->texts[$name])) {
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return "[$name]";
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}
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|
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// replace vars in text
|
|
if (is_array($attrib['vars'])) {
|
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foreach ($attrib['vars'] as $var_key => $var_value)
|
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$text = str_replace($var_key[0]!='$' ? '$'.$var_key : $var_key, $var_value, $text);
|
|
}
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|
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// format output
|
|
if (($attrib['uppercase'] && strtolower($attrib['uppercase']=='first')) || $attrib['ucfirst'])
|
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return ucfirst($text);
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else if ($attrib['uppercase'])
|
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return mb_strtoupper($text);
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else if ($attrib['lowercase'])
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return mb_strtolower($text);
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|
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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
|
|
*/
|
|
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 += $add;
|
|
}
|
|
|
|
|
|
/**
|
|
* Check the given string and return a valid language code
|
|
*
|
|
* @param string Language code
|
|
* @return string Valid language code
|
|
*/
|
|
protected function language_prop($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(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;
|
|
}
|
|
|
|
|
|
/**
|
|
* 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;
|
|
}
|
|
|
|
|
|
/**
|
|
* 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);
|
|
|
|
if (is_object($this->smtp))
|
|
$this->smtp->disconnect();
|
|
|
|
foreach ($this->caches as $cache) {
|
|
if (is_object($cache))
|
|
$cache->close();
|
|
}
|
|
|
|
if (is_object($this->storage)) {
|
|
if ($this->expunge_cache)
|
|
$this->storage->expunge_cache();
|
|
$this->storage->close();
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Registers shutdown function to be executed on shutdown.
|
|
* The functions will be executed before destroying any
|
|
* objects like smtp, imap, session, etc.
|
|
*
|
|
* @param callback Function callback
|
|
*/
|
|
public function add_shutdown_function($function)
|
|
{
|
|
$this->shutdown_functions[] = $function;
|
|
}
|
|
|
|
|
|
/**
|
|
* 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 = 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)
|
|
{
|
|
// installer
|
|
if (class_exists('rcube_install', false)) {
|
|
$rci = rcube_install::get_instance();
|
|
$rci->raise_error($arg);
|
|
return;
|
|
}
|
|
|
|
if ($log && $arg['type'] && $arg['message']) {
|
|
self::log_bug($arg);
|
|
}
|
|
|
|
// display error page and terminate script
|
|
if ($terminate && is_object(self::$instance->output)) {
|
|
self::$instance->output->raise_error($arg['code'], $arg['message']);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Report error according to configured debug_level
|
|
*
|
|
* @param array Named parameters
|
|
* @see self::raise_error()
|
|
*/
|
|
public static function log_bug($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 ($level & 1) {
|
|
if ($_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']);
|
|
}
|
|
}
|
|
|
|
// 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 $this->user->ID;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
|
|
/**
|
|
* Getter for logged user name.
|
|
*
|
|
* @return string User name
|
|
*/
|
|
public function get_user_name()
|
|
{
|
|
if (is_object($this->user)) {
|
|
return $this->user->get_username();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Lightweight plugin API class serving as a dummy if plugins are not enabled
|
|
*
|
|
* @package Core
|
|
*/
|
|
class rcube_dummy_plugin_api
|
|
{
|
|
/**
|
|
* Triggers a plugin hook.
|
|
* @see rcube_plugin_api::exec_hook()
|
|
*/
|
|
public function exec_hook($hook, $args = array())
|
|
{
|
|
return $args;
|
|
}
|
|
}
|