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1552 lines
46 KiB
PHP
1552 lines
46 KiB
PHP
<?php
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/*
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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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*/
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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 Framework
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* @subpackage 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 rcube
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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_db
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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 Memcache
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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 $shutdown_functions = array();
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/**
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* This implements the 'singleton' design pattern
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*
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* @param integer Options to initialize with this instance. See rcube::INIT_WITH_* constants
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* @param string Environment name to run (e.g. live, dev, test)
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*
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* @return rcube The one and only instance
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*/
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static function get_instance($mode = 0, $env = '')
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{
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if (!self::$instance) {
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self::$instance = new rcube($env);
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self::$instance->init($mode);
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}
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return self::$instance;
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}
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/**
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* Private constructor
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*/
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protected function __construct($env = '')
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{
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// load configuration
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$this->config = new rcube_config($env);
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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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$this->plugins = rcube_plugin_api::get_instance();
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}
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}
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/**
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* Get the current database connection
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*
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* @return rcube_db Database object
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*/
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public function get_dbh()
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{
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if (!$this->db) {
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$config_all = $this->config->all();
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$this->db = rcube_db::factory($config_all['db_dsnw'], $config_all['db_dsnr'], $config_all['db_persistent']);
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$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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$this->mc_available = 0;
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// add all configured hosts to pool
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$pconnect = $this->config->get('memcache_pconnect', true);
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foreach ($this->config->get('memcache_hosts', array()) as $host) {
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if (substr($host, 0, 7) != 'unix://') {
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list($host, $port) = explode(':', $host);
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if (!$port) $port = 11211;
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}
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else {
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$port = 0;
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}
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$this->mc_available += intval($this->memcache->addServer(
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$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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}
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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(
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'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 string $ttl Expiration time for cache items
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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[$name]) && ($userid = $this->get_user_id())) {
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$this->caches[$name] = new rcube_cache($type, $userid, $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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* Initialize and get shared cache object
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*
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* @param string $name Cache identifier
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* @param bool $packed Enables/disables data serialization
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*
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* @return rcube_cache_shared Cache object
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*/
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public function get_cache_shared($name, $packed=true)
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{
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$shared_name = "shared_$name";
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if (!array_key_exists($shared_name, $this->caches)) {
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$opt = strtolower($name) . '_cache';
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$type = $this->config->get($opt);
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$ttl = $this->config->get($opt . '_ttl');
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if (!$type) {
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// cache is disabled
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return $this->caches[$shared_name] = null;
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}
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if ($ttl === null) {
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$ttl = $this->config->get('shared_cache_ttl', '10d');
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}
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$this->caches[$shared_name] = new rcube_cache_shared($type, $name, $ttl, $packed);
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}
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return $this->caches[$shared_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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/**
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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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}
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if ($messages_cache) {
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$this->storage->set_messages_caching(true);
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}
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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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'disabled_caps' => $this->config->get("{$driver}_disabled_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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$_SESSION[$driver.'_host'] = $_SESSION['storage_host'];
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}
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$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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* 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($this->config->get('default_charset', RCUBE_CHARSET));
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if ($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 = $this->config->get('session_domain');
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$sess_path = $this->config->get('session_path');
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$lifetime = $this->config->get('session_lifetime', 0) * 60;
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$is_secure = $this->config->get('use_https') || rcube_utils::https_check();
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// set session domain
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if ($sess_domain) {
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ini_set('session.cookie_domain', $sess_domain);
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}
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// set session path
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if ($sess_path) {
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ini_set('session.cookie_path', $sess_path);
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}
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// set session garbage collecting time according to session_lifetime
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if ($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', $is_secure);
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ini_set('session.name', $sess_name ? $sess_name : 'roundcube_sessid');
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ini_set('session.use_cookies', 1);
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ini_set('session.use_only_cookies', 1);
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ini_set('session.cookie_httponly', 1);
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// use database for storing session data
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$this->session = new rcube_session($this->get_dbh(), $this->config);
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|
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$this->session->register_gc_handler(array($this, 'gc'));
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$this->session->set_secret($this->config->get('des_key') . dirname($_SERVER['SCRIPT_NAME']));
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$this->session->set_ip_check($this->config->get('ip_check'));
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|
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// start PHP session (if not in CLI mode)
|
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if ($_SERVER['REMOTE_ADDR']) {
|
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$this->session->start();
|
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}
|
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}
|
|
|
|
|
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/**
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|
* Garbage collector - cache/temp cleaner
|
|
*/
|
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public function gc()
|
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{
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rcube_cache::gc();
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rcube_cache_shared::gc();
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$this->get_storage()->cache_gc();
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|
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$this->gc_temp();
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}
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|
|
|
|
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/**
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* Garbage collector function for temp files.
|
|
* Remove temp files older than two days
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|
*/
|
|
public function gc_temp()
|
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{
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$tmp = unslashify($this->config->get('temp_dir'));
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$expire = time() - 172800; // expire in 48 hours
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|
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if ($tmp && ($dir = opendir($tmp))) {
|
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while (($fname = readdir($dir)) !== false) {
|
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if ($fname[0] == '.') {
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continue;
|
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}
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|
|
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if (@filemtime($tmp.'/'.$fname) < $expire) {
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@unlink($tmp.'/'.$fname);
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}
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|
}
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|
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closedir($dir);
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}
|
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}
|
|
|
|
|
|
/**
|
|
* Runs garbage collector with probability based on
|
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* session settings. This is intended for environments
|
|
* without a session.
|
|
*/
|
|
public function gc_run()
|
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{
|
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$probability = (int) ini_get('session.gc_probability');
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$divisor = (int) ini_get('session.gc_divisor');
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|
|
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if ($divisor > 0 && $probability > 0) {
|
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$random = mt_rand(1, $divisor);
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if ($random <= $probability) {
|
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$this->gc();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Get localized text in the desired language
|
|
*
|
|
* @param mixed $attrib Named parameters array or label name
|
|
* @param string $domain Label domain (plugin) name
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*
|
|
* @return string Localized text
|
|
*/
|
|
public function gettext($attrib, $domain=null)
|
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{
|
|
// load localization files if not done yet
|
|
if (empty($this->texts)) {
|
|
$this->load_language();
|
|
}
|
|
|
|
// extract attributes
|
|
if (is_string($attrib)) {
|
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$attrib = array('name' => $attrib);
|
|
}
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|
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$name = $attrib['name'] ? $attrib['name'] : '';
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|
|
// attrib contain text values: use them from now
|
|
if (($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;
|
|
}
|
|
}
|